Scanning method of directive antenna-based Ad Hoc network neighbor nodes

The invention discloses a scanning method of directive antenna-based Ad Hoc network neighbor nodes in the technical field of wireless communication, comprising the following steps of: numbering each node prepared to enter a directive antenna-based Ad Hoc network; respectively configuring the same antenna device for each node to obtain scanning direction numbers of the antennae; sequentially numbering the directions of the antennae and ensuring the numbers of each antenna in the same direction are same; pre-estimating the network before the nodes enter the network to obtain the number of nodes of the network; dividing the communication time into a plurality of time slots; after the nodes enter the network, carrying out the receiving/transmitting mode selection processing at the beginning of each time slot to determine the receiving/transmitting mode of each time slot of the antenna; carrying out the scanning pattern selection processing of the antenna to obtain the scanning pattern under ...

Hydrostatic support spindle box

The invention relates to a heavy horizontal lathe spindle box provided with hydrostatic loading supports. The hydrostatic support spindle box is provided with one or more hydrostatic supports between the front radial bearing of the spindle shaft and a disc chuck. The structure of the spindle box is as follows: a spindle and the disc chuck are fixedly installed together; the front radial bearing, a rear radial bearing and the hydrostatic supports are respectively and fixedly installed on the body of the spindle box; and an axial bearing is installed on the rear end of the spindle. In the invention, the structure of the spindle box can unload most of the weight of the disc chunk and workpieces so as to ensure the high-precision rotation of the spindle. Through inspection, when the hydrostatic support spindle box of the invention is applied to a digital heavy horizontal lathe bearing 500 tons, the radial runout of the spindle can reach 0.006 mm.

High-voltage transmission tower footing landslide monitoring system supplied with power through solar energy

The invention relates to a high-voltage transmission tower footing landslide monitoring system supplied with power through solar energy. The high-voltage transmission tower footing landslide monitoring system supplied with power through solar energy comprises a solar power system, a tower monitoring terminal and a data center server. The solar power system supplies power to the tower monitoring terminal and comprises a solar cell panel, a controller and a storage battery. The tower monitoring terminal collects the environmental data of a high-voltage transmission tower and sends the environmental data to the data center server. The data center server receives the environmental data and transmits the environmental data to the data processing device. The data processing device comprises a comparison unit, a storage unit and a judgment unit, wherein the comparison unit compares the environmental data obtained every time with historical data and calculates the variation quantity; the storage ...

Decision feedback equalizer with intelligently selecting tap coefficient

Communication electric device and antenna device

The invention discloses a communication electric device and an antenna device. The antenna device includes an antenna unit used for transceiving wireless signals; and a first metal component and a second metal component arranged oppositely, wherein a radiation gap is arranged between the first metal component and the second metal component; and feed points of the antenna unit are arranged in the gap. The antenna device adopts the radiation gap between the first metal component and the second metal component as a radiation body of the antenna, so that the radiation efficiency of the antenna device is improved. The first metal component and the second metal component can be metal structures of the communication electric device and no external component structures are needed to add. Therefore, the radiation efficiency of the antenna device is improved without increasing space occupancy.

Stride luminous warning ball of river transmission line wire

The utility model relates to a stride luminous warning ball of river transmission line wire, include the spherical shell that becomes by last casing and inferior valve body group, upward offer the recess that runs through that is used for wearing to establish transmission line on the casing, be equipped with current transformer, electrical unit and light -operated circuit unit in the spherical shell, current transformer and electrical unit electric connection to acquire the electric energy and transmit from transmission line and give electrical unit, electrical unit and light -operated circuit unit electric connection to for the power supply of light -operated circuit unit, the illumination intensity in light -operated circuit unit detection ring border to whether illumination intensity control luminescence unit according to the environment glistens. This warning ball can carry out effectual warning to the ship that traveles night, and river transmission line's safety is striden in the ...

Balancing device and balancing method based on iteration elimination and maximum ratio combining

The invention relates to a balancing device and a balancing method based on combination of iteration elimination and maximum ratio in the technical field of digital radio communication. The balancing device comprises a channel state information module, a maximum ratio combining module, a first iteration module and a second iteration module, wherein the channel state information module provides initial state information of a channel for the maximum ratio combining module, the first iteration module and the second iteration module; the first iteration module decides input signals and performs iteration elimination on the input signals and decision signals; the second iteration module performs circulated iteration on the signals after first iteration, decides the signals, and performs iteration elimination on the signals; and the maximum ratio combining module combines the signals after first iteration and second iteration with the maximum ratio criterion and obtains final output signals.The ...

Time-domain processing method and device of frequency selective fading MIMO channel

A time-domain processing method and device of a frequency selective fading MIMO channel belongs to the technical field of wireless communications. The method comprises the following steps: carrying out channel estimation on N-channel input signals respectively to obtain the impulse response value of a channel through which M-channel original signals contained in each-channel input signals pass; sequencing channel energy to obtain energy of each channel and energy sequence of the channels; restoring the one-channel original signals with maximum channel energy in each-channel input signals to obtain the estimation values of the original sending signals of the channel; carrying out interference elimination and decision feedback on each-channel input signals and sequentially restoring each original sending message contained in each-channel input signals; and carrying out maximum ratio combining to obtain the estimation values of the original signals. The invention improves the utilization rate ...

Method for realizing automatic pattern recognition via system information

Multi-user notebook computer system based on network

The multiple-user notebook computer system based on network includes spatially separated total workstation, radio digital signal emitting and receiving equipment and multiple-user notebook computer terminals. The radio digital signal emitting and receiving equipment is satellite digital signal emitting and receiving equipment with great covered area, or the branch workstations in different cities with high speed network for data and information transmission in between. The multiple-user notebook computer terminals complete I/O and data transmission in various kinds of peripheral equipment on terminal interface. The total workstation completes the processing and storing of input data, and data are transmitted in radio mode or wired mode between the total workstation and each of the multiple-user notebook computer terminals. The present invention has the advantages of small size, low cost, easy hardware updating, etc.

Tower monitoring device for monitoring high voltage transmission tower erected on landslide

The invention relates to a tower monitoring device for monitoring a high voltage transmission tower erected on landslide. The tower monitoring device comprises a data acquisition unit, a terminal control unit and a terminal communication unit, wherein the data acquisition unit is arranged on the high voltage transmission tower, a substrate of the high voltage transmission tower or in the ground below the substrate of the high voltage transmission tower, and is used for acquiring environmental data of the high voltage transmission tower and transmitting the data to the terminal control unit; the terminal control unit is connected to the data acquisition unit and is used for processing the environmental data from the data acquisition unit and transmitting the processed data to the terminal communication unit; the terminal communication unit is connected to the terminal control unit and is used for sending the environmental data from the terminal control unit to a data center server under ...

Synchronous information adding method and device in single-frequency network broadcast adapter of digital television

The invention relates to a synchronous information adding method and a device in a single-frequency network broadcast adapter of a digital television in the technical field of information. The method The invention relates to a synchronous information adding method and a device in a single-frequency network broadcast adapter of a digital television in the technical field of information. The methodc synchronization recovery of the single-frequency network, are simple and practical to achieve, and have flexibility and expandability.the time of synchronization and synchronization recovery of the single-frequency network, are simple and practical to achieve, and have flexibility and expandability.en the time of synchronization andin the method. The method and the device promote the occurrence frequency of the synchronous information packet in the TS stream, do not increase the burden of the prior distributing channel, shorten in the method. The method and the device promote the occurrence frequency ...

Simulation device with sampling deviation of fixed fraction times

The invention discloses a simulation device with sampling deviation of fixed fraction times, belonging to the technical field of digital communication. The simulation device comprises a sending end simulator, a sending end forming filter, a channel simulator, a receiving end forming filter and a receiving simulator, wherein the sending end simulator is connected with a base band of a sender to transmit base band data; the sending end forming filter is connected with the sending end simulator to transmit deviation added data; the channel simulator is connected with the sending end forming filter to transmit base band sending data; the receiving end forming filter is connected with the channel simulator to transmit base band receiving data; and the receiving simulator is connected with the receiving end forming filter to transmit filtered data with deviation and also transmit reduced base band data. The invention respectively uses data selectors with very little resource occupation on the ...

Low power consumption asymmetric Fourier transform modulation/demodulation device

Bonding device for paper bag processing

The utility model discloses a bonding device for paper bag processing, which comprises a gluing mechanism and an extrusion mechanism, the gluing mechanism comprises a support, a first electric telescopic column and a spring support, the first electric telescopic column is installed on the inner side of the support, and the spring support is installed at the lower end of the first electric telescopic column. A fixing frame is arranged below the spring frame, a glue solution box is arranged on the inner side of the fixing frame, a connecting pipe is arranged on the glue solution box, a first rotating frame is arranged below the fixing frame, a sponge block is bonded to the upper end face in the first rotating frame, and a gluing roller is arranged below the sponge block; the extruding mechanism comprises a conveying frame, a conveying belt and a motor. The gluing device is simple in structure, reasonable in design, low in production cost and high in practicability, raw materials can be continuously ...

Method of adding circular test bit before coding Turbo product code

The present invention discloses method of adding circular check bit before coding Turbo product code. The TPC data block before each two TPC codes is used as one check unit for 8 bit CRC check and 32 bit CRC check. Each of the check units includes the TS package of 19 MPEG-II TS flows, and the CRC check is performed on the first 9.5 TS packages of the first TPC block and the last 9.5 TS packages of the second TPC block. In the receiving end, the check bit is used to show whether to have error in the data and to determine whether to need TPC decoding debugging, and this can raise the decoding quality and save decoding time greatly and provide MPEG II decoding with reliable error code masking information.

Data frame filling method for multi-modulation mode transmission system

The invention relates to a data frame filling method of multi-modulating modes transmission system, which selects the data processing mode through time domain / frequency domain; when no reference information is inserted into the single carrier wave time domain processing: data requiring single carrier wave time domain processing is under increased sampling; data requiring multi carrier wave frequency domain processing is under processing of interpolation of pilot signal / strongly protected unknown information, afterwards the output data is under processing of interpolation of virtual sub-carrier wave, and finally output under processing of interpolation of virtual sub-carrier wave is under IFFT processing; when reference information is inserted into the single carrier wave time domain processing, and the inserted reference information number L is equal to the inserted pilot signal / strongly protected unknown information number N: data requiring single carrier wave time domain processing ...

High-power insulated gate bipolar transistor (IGBT) redundancy driving protection circuit

The invention discloses a high-power insulated gate bipolar transistor (IGBT) redundancy driving protection circuit, which comprises a controlled IGBT, a basic isolation driving unit U1, a redundancy isolation driving unit U2 and a switching tube unit U3, wherein the input end of U1 is connected with a driving signal Vin, and the output end of U1 is connected with the gate of the IGBT by a gate resistor R1; the input end of U2 is connected with the driving signal Vin, and the output end of U2 is connected with the input end of U3; and the two output ends of U3 are connected with the gate of the IGBT and the internal negative bias voltage end of U1 respectively. The high-power IGBT redundancy driving protection circuit provided by the invention has the advantages of reducing the internal impedance of a driving circuit in the off-state of the IGBT, rapidly releasing surging current, reducing gate voltage, preventing the false switching-on of the IGBT and ensuring the reliable switching-off ...

Equalizer structure and method for error reverse rotation in digital television receiver

The invention discloses a balancer structure and method, for using error counter rotation to accurately recover carrier wave, in digit television ground single carrier wave broadcast transmission system, which uses the sum value and error signal of balancer to check phase and filter to obtain a phase error of input signal, and reversely rotate the error signal of the balancer and the sum value of a feedback filter, to correct the phase error, and uses the corrected error signal of balancer to fresh the extract factor of the feedback filter, therefore, the balance is not sensitive to frequency bias of carrier wave, to work at ideal synchronous condition to improve system property.

Combined type notebook computer with separated dispensing of computer heating elements

This invention relates to composite notebook computer with dissipation element isolated, which comprises display, keyboard and the back machine shell, wherein, the display and the keyboard are hinged; the keyboard down end both sides are symmetrically set with at least two insert pads; the back shell is tight to the keyboard back end with insert groove for insert pad; a pair of symmetrically set push levers are located on the back surface between the display and the back shell with its two ends separately fixed with the back of the display and the back shell; the notebook computer dissipation element is located in the back shell with shell; the back shell switch adopts electrically control or mechanic switch.

Optimized method of main protective configuration for internal fault of largesize motor stator coil

The invention is an optimization method of main protection configuration of internal failure of a large-scale generator stator winding, advancing a multiloop analysis method of AC machine, considers an electric machine as a circuit network with relative movement to research its movement behavior by general circuit analysis methods, and can flexibly analyze the influence of various harmonic magnetic fields, space position and from of its winding, etc, thus solving the problem of simulation and calculation of the internal failure. On the basis of complete simulation and calculation of internal failure, the invention proposes that it should adopt a different design optimizing course according to different structures of generator winding, opens up a new way of scientifically making a solution of main protection configuration of a generator and reasonably selecting a led-out mode of neutral point-side branch and a solution of current mutual inductor configuration, corrects the previous wrong ...

Utilize double resonance to realize low frequency broadband mobile terminal antenna

The utility model relates to an utilize double resonance to realize low frequency broadband mobile terminal antenna, its characterized in that, printed circuit board and antenna part branch have constituted whole mobile terminal antenna, and on the antenna part branch depended on the support, as the whole printed circuit board upper end that lies in, antenna part divided and includes that feeder,first earth connection, second earth connection, antenna radiation personally experience sth. Part of the body, and the antenna radiation body and feed are connected respectively to the both ends of feeder, and feeder, first earth connection and second earth connection are connected antenna radiation through input matching circuit, first ground connection inductance, second ground connection inductance respectively and is personally experienced sth. Part of the body and printed circuit board. The utility model discloses do you realize low frequency 690MHz the 1GHz frequency covers, reaches the effect ...

Automatic control type operating rod device

The invention relates to an automatic control type operating rod device. The automatic control type operating rod device comprises a connecting frame, a first operating rod mechanism and a second operating rod mechanism, wherein the first operating rod mechanism and the second operating rod mechanism are arranged on the connecting frame. The first operating rod mechanism comprises a first operating rod provided with a first hook head. The second operating rod mechanism comprises a second operating rod provided with a second hook head, and a second driving mechanism used for driving the second operating rod to swing up and down, extend and retract forwards and backwards along an axis and rotate around the axis. The operating rod device is high in automation degree and easy to operate, and the working efficiency and the operation safety are improved.

Bottom pasting device for paper bag production

The utility model belongs to the field of paper bag production, and particularly relates to a bottom pasting device for paper bag production, which comprises a bottom pasting mechanism and a lifting mechanism, the bottom pasting mechanism comprises a support frame, support legs, a displacement support, a threaded rod and a motor, the support legs are fixed at the bottom of the support frame, the displacement support is arranged at the top of the inner side of the support frame, and the threaded rod is arranged on the displacement support. The threaded rod is rotationally connected to the inner side of the displacement support, the motor with an output shaft connected with the threaded rod is installed on the displacement support, a threaded block is connected to the outer side of the threaded rod through threads, a connecting plate is arranged at the bottom of the threaded block, and a rolling support is installed at the bottom of the connecting plate; a pressing roller is rotationally ...

Health chair

The invention discloses a health chair which comprises an armchair and chassis, the armchair and the chassis are coupled through a joint, the joint comprises three stage driving devices for generating horizontal reciprocating motion, horizontal rotation motion and up-and-down motion, the armchair can be driven to perform mechanical oscillation and rotary motion of different directions. The chair can exert human body by polydirectional sustained oscillation stimulation.

Balance compensation structure and mode for three hanging points of spindle box

The invention belongs to a balance compensation structure and a balance compensation mode suitable for a spindle box of a numerical control milling and boring machine with a ram. The balance compensation structure mainly comprises a balance and tilt compensation unit and a spindle box three-hanging-point mechanism, wherein the spindle box is provided with front, middle and rear hanging points; the three hanging points are connected with the gravity center of a balance weight through a connecting rope and a pulley group; compensation oil cylinders are arranged at the front and rear hanging points; and an oil circuit control device consisting of an electro-hydraulic proportional valve, a hydraulic control one-way valve and an electromagnetic reversing valve is arranged in front of each compensation oil cylinder. The balance compensation mode is that: a numerical control system measures the working condition of the ram in real time, and oil pressure in each oil cylinder is controlled by the ...

Method for refining egg-white lysozyme by circulation hyperfiltration-salting out crystal separation

The invention provides a method for refining egg-white lysozyme by the application of cycling ultrafiltration and salting-out crystallization separation. The method comprises the following steps: firstly, performing pretreatments of dilution, micro-filtration, ultrafiltration and the like on egg white to obtain a raw material liquid of egg white lysozyme; secondly, allowing the raw material liquid to circularly flow through membrane modules in a tangential flow ultra-filter so that an egg-white lysozyme solution is continuously separated and concentrated; thirdly, further concentrating the egg-white lysozyme solution through the ultrafiltration and the salting-out crystallization; and fourthly, performing salting-out crystallization on the egg-white lysozyme solution in a crystallizing tank. With the method, the crystal particle size of the obtained lysozyme is larger than 0.1 millimeter, the particle size is uniform and the appearance is complete, and the lysozyme has a typical crystal ...

Position detection and control device

The invention belongs to a position detection and control device for mechanical linear feed motion. The position detection and control device is mainly used for converting mechanical rotary motion to the mechanical linear feed motion, and can indirectly realize linear position detection and control of the linear feed motion by detecting the angle and the position of rotation of the rotary motion.The position detection and control device mainly comprises a transmission mechanism and a position detection mechanism. The transmission mechanism comprises a screw rod transmission and a gear transmission; and the position detection mechanism comprises a switching signal counting device and a switching electrical signal processing system. As for a machine tool feed position detection device, a control system and the structure are simpler than a dial scale detection mechanism, and the cost is low, thereby being a reliable detection means and the detection device.

Decision feedback equalizer with intelligently selecting tap coefficient

A decision feedback equilizer for intelligent selection of tapping coefficient is composed of synchronous signal separator, digital signal processor (DSP), FIR and IIR. The digital signal is receivedfrom input by FIR and then output to IIR that is composed of dicision circuit, delay circuit, electronic switch, sub-channel circuit. The dicision circuit outputs to delay circuit composed of more D-triggers. Said syncrhonous signal separator can separate synchronous signal from input digital signals and send it to DSP which controls the electronic swith in IIR. Several sub-channel circuits are connected to relative D-triggers.

Polynomial interpolation apparatus and transpose apparatus thereof

The invention relates to a polynomial interpolation device and a transposition device thereof in the technical field of signal and information processing. The polynomial interpolation device comprises a first time delay module, a coefficient module, a second time delay module, an adder module and a multiplying/adding module, which are sequentially connected in turn. The transposition device comprises two types, wherein one type is the transposition device obtained by transposing each branching FIR filter in the polynomial interpolation device, while the other type is the transposition device obtained by transposing the whole polynomial interpolation device. The polynomial interpolation device optimizes a Farrow interpolation device of the prior polynomial interpolation device without increasing the number of adders. Compared with the Farrow interpolation device, the polynomial interpolation device has the advantages of little coefficient, easy realization of design of hardware with low ...

System clock feeding and recovering method for railway television single frequency network

Wireless channel parameter measurement device and method thereof

The invention relates to a wireless channel parameter measurement device and a method thereof in the technical field of wireless communication. The device comprises a signal transmission module and a signal receiving and processing module. The method comprises the following steps that: two paths of pseudo-random sequences are generated, and are subjected to 4QAM modulation; a modulated baseband digital signal is subjected to molding and filtering; the baseband digital signal is converted into an analog signal to be transmitted through a transmission antenna; a received radio frequency signal is subjected to radio frequency processing and analog-to-digital conversion to be changed into a digital signal; and the digital signal is subjected to I path demodulation and Q path demodulation, andis subjected to low-pass filtering to be converted into a baseband digital signal; the baseband digital signal is related to the local pseudo-random sequence, and outputs related signals and a resultof ...

Method and device for inhibiting peak-to-average ratio (PAR)

The invention provides a method and device for inhibiting the peak-to-average ratio (PAR). The method is used for solving the problem that no subcarriers in an actual wireless communication system are used for reducing the PAR and effectively reducing the complexity of realizing the method. The method is simple and convenient to realize, and less iterations are only required to obtain a good inhibition effect of the peak-to-average power ratio (PAPR).

Synchronous information adding method and device in single-frequency network broadcast adapter of digital television

The invention relates to a synchronous information adding method and a device in a single-frequency network broadcast adapter of a digital television in the technical field of information. The method comprises: removing a standard empty packet in TS stream, storing the TS stream after empty packet removal, monitoring the adding time of periodical synchronous information, judging an output TS packet according to the adding period of the periodical synchronous information, judging whether update exits in a memory, reading the TS packet output from the memory if the update exists, and adding the periodical synchronous information packet output if random synchronous information packet output is added at the position capable of outputting the TS packet. The device comprises an empty packet removing module, a storage module, a TS enabling control module, a synchronous information packet generating module and a TS stream output control module correspondingly achieving the information processing ...

Combined operating rod for back-up protection device for replacing strain insulator string

The invention relates to a combined operating rod for a back-up protection device for replacing a strain insulator string. The combined operating rod comprises a first operating rod with a first hook head and a second operating rod with a second hook head; the back end of the second operating rod is hinged to the back side part of the first operating rod and can swing up and down relative to the first operating rod; the second operating rod can stretch longitudinally along the axis. The combined operating rod is easy and convenient to use and easy to operate, and the working performance and the operating safety are improved.

Multi-slide-carriage and multi-principal-axis milling and drilling device

The invention relates to a multi-slide-carriage and multi-principal-axis milling and drilling device for machining part holes of tube sheets and the like. Two or more slide carriages are arranged on a cross beam, and each slide carriage is provided with two or more milling and drilling bits; each slide carriages is arranged on the cross beam and moves along the cross beam under the drive of respective independent feeding driving mechanism; each slide carriage is provided with a small planker capable of moving transversely, and each small planker is provided with a gap regulating device for regulating the space among the milling and drilling bits; the small plankers are provided with the milling and drilling bits, and a longitudinal guide rail pair and a singly-driven longitudinal feeding mechanism are arranged between each small planker and the corresponding milling and drilling bit; and a separation driving mechanism is arranged for the rotary motion of a principal axis of each milling ...

Time domain self-adaptive equalizer and decision feedback filter included therein

Negative sequence impedance direction protection method for interior failures of stator winding of steamer generator

The invention relates to a protection method for interior failures of a stator winding of a steam turbine generator, belonging to the technical field of main equipment relay protection of a power system. The protection method is characterized by comprising the following steps of: collecting three-phase voltage and three-phase current from the machine end of the generator, filtering fundamental wave negative sequence components of failure components of phase voltage and phase current, calculating the equivalence negative sequence impedance of the failure components of the machine end, and judging whether unsymmetrical failures are interior failures of a motor winding or exterior failures of the machine end according to the symbol and the size of the negative sequence impedance. Analysis for the calculation of all interior short-circuit failures and single-branch welding disconnection failures which possibly occur and the sensitivity in two typical steam turbine generators shows that the ...

Method and apparatus for encoding image

The invention relates to a method and a device for encoding image. The method comprises the steps of starting, image acquisition, variable adjustment, encoding, storage and displaying. The device mainly comprises an image acquisition unit, an encode operation unit, a data storing unit, a display unit, wherein, the variable adjustment step is characterized in that image change rate and image complexity are utilized for the adjustment, the quantization scales of I-frame, P-frame, and B-frame, which are need by the encoding, are set, and the frame distance between the I-frame and the P-frame andthe motion estimation search range of the I-frame and the P-frame, wherein, the image change rate is judged through the utilization of rates; and the image complexity is judged through the utilization of the entropic numerical value. Therefore, the image data is effectively compressed according to the running status, and the storage space is saved.

Turbo product code serial cascade NR code channel coding method

The invention discloses a channel encoding method combining Turbo product code and NR code. It adopts cascade connection in series with TPC and NR. Inputting series data information bit flow of TPC encoder using bit as unit and entering TPC encoding matrix non-interlaced. Forming two-dimensional TPC encoding output matrix after extending hamming encoding. And the output bit flow takes NR encoding. A bit interweaver is added between TPC encoding and NR encoding, thus, can improve the capability to anti-burst error. The invention not only uses the encoding process itself but also supplies more reliable soft judgment information for equalizer to improve the performance. And can decrease the threshold of carrier-to-noise ratio of the system.

Axis indexing and positioning structure

The invention discloses an axis indexing and positioning structure, which mainly comprises three contrate gears, an oil cylinder piston capable of being axially pushed along an axis and the like. The first contrate gear is combined with a shell and the oil cylinder piston; under the push of the oil cylinder piston, the first contrate gear can be moved axially of the axis; the second contrate gearis fixed on the shell; and the third contrate gear is arranged on the axis and can rotate together with the axis. For the three contrate gears, the number of teeth of the indexing angle can be 72, 120, 144, 360 and the like. In the axis indexing and positioning structure, the oil cylinder piston is directly connected to the contrite gears and is directly driven, thus the mechanical transmission is greatly simplified, and highest positional accuracy can reach 3s. And the equipment failure rate is effectively reduced and lowered, the manufacture and maintenance costs are reduced, and the axis indexing ...

Method and device for judging fatigue driving

The invention discloses a method and device for judging fatigue driving. A driving information record generated by a vehicle OBD (On-Board Diagnostics) device when a vehicle is driven serves as a resource parameter; a driver driving behaviour logically manually analyzed serves as a comparison parameter; a processing unit takes a comparison parameter as a basis to carry out data judgement and accumulation on the resource parameter; and when the accumulated resource parameter reaches the set standard, an automobile driver is judged to be in the fatigue driving state.

Insulator string hanging point buffer method and insulator string hanging point connecting structure

The invention provides an insulator string hanging point buffer method and an insulator string hanging point connecting structure. The connecting structure comprises a tower transverse rod and an insulator string hung on the tower transverse rod. A hanging plate is fixed at the lower end of the tower transverse rod. The hanging plate is connected with the insulator string through a telescopic component. The telescopic component comprises an upper connecting tube and a lower connecting tube. A steel wire rope which can telescopically extend is disposed in the upper connecting tube. The lower end of the steel wire rope is fixedly connected in the lower connecting tube. The upper end of the upper connecting tube is hinged with the hanging plate. The lower connecting tube is hinged with the insulator string. The insulator string hanging point connecting structure is simple in structure, the steel wire rope can be stretched through elasticity in a heavy-wind environment to achieve buffering, ...

Railway TV monochromatic network multiaerial system

The invention relates to a railway TV monochromatic network multiaerial system in the communication technical field, which comprises a receiver antenna pair arranged on a train and a sending antenna pair arranged on a monochromatic network synchronous transmitting base station along the train. Each receiver comprises two pairs of directive antennas, the polarization mode of which is linear polarization; the directions of polarization of the two pairs of directive antennas is laid in a crossing way at right angles; the maximum gain directions of the two pairs of antennas are both parallel to the direction of advance of the train and opposite at 180 degrees angles. Each base station comprises two pairs of directive antennas, the polarization mode of which is linear polarization; the directions of polarization of the two pairs of directive antennas is laid in a crossing way at right angles; the maximum gain directions of the two pairs of directive antennas respectively point to the center ...

Method for extracting metallic molybdenum in molybdenum-nickel ore by lye pressing immersion method

The invention relates to a method for extracting metallic molybdenum in a molybdenum-nickel ore by a lye pressing immersion method, which comprises the following steps: firstly, pulverizing the molybdenum-nickel ore into particles with the particle diameter not greater than 250mum, then calcining for 2-4 hours at the temperature of 550-600 DEG C to obtain calcined sand, putting the calcined sand, soda and water into a pressure container together and carrying out pressing immersion for 1-2 hours at the temperature of 130-160 DEG C and the pressure of 3-4atm, wherein the quantity of the soda is 20-30% of the mass of the calcined sand, and the quantity of the water is 2-3 times of the total mass; carrying out solid-liquid separation, regulating the pH value of leachate to 2-3, adding active carbon under stirring, separating after completely adsorbing the precipitated sodium molybdate, desorbing the active carbon by lye with the pH of 8-8.5, separating to obtain a sodium molybdate solution ...

Equalizer structure and method for error reverse rotation in digital television receiver

The invention discloses a balancer structure and method, for using error counter rotation to accurately recover carrier wave, in digit television ground single carrier wave broadcast transmission system, which uses the sum value and error signal of balancer to check phase and filter to obtain a phase error of input signal, and reversely rotate the error signal of the balancer and the sum value ofa feedback filter, to correct the phase error, and uses the corrected error signal of balancer to fresh the extract factor of the feedback filter, therefore, the balance is not sensitive to frequencybias of carrier wave, to work at ideal synchronous condition to improve system property.

Sodium-sulfur cell operation management system

The invention discloses a sodium-sulfur cell operation management system. The sodium-sulfur cell operation management system comprises multiple branch circuits composed of multiple sell modules connected in series, multiple branch circuit management units with one-to-one correspondence between the branch circuit management units and the branch circuits, cell module management units with one-to-one correspondence between the cell module management units and the cell modules, a PCS controller, a USBCAN interface card, a monitoring PC machine, an industrial switch and a superior dispatching center, wherein each cell module management unit is connected with the corresponding branch circuit management unit of the branch circuit to which the cell module management unit belongs; each branch circuit management unit is connected with the PCS controller; the PCS controller is connected with the monitoring PC machine through the USBCAN interface card; the monitoring PC machine is connected with all ...

Method for realizing automatic pattern recognition via system information

The invention relates to a transmission mode distinguishing method suitable for transmission of digital television ground broadcasting, wherein the receiving terminal of the transmission system distinguishes the transmission mode before equalizing the data stream. The method includes: (1) when the received data stream arrives the system information position of data frame, the input data begin to multiply a random sequence of data of n digits one by one, the random sequence of data of n digits has the same generating mode as that of the random sequence used by randomizing Walsh sequence block in the system information generating process; (2) after transmitting n signs, conduct Walsh transformation on the multiplied results of n digits corresponding to these signs; (3) take out the maximum absolute valve from the n output under Walsh transformation, find the corresponding system information based on the mode self-definition of system information during transmission, then match a transmission ...

Multi-spindle distance adjusting device

The invention discloses a multi-spindle distance adjusting device. A small dragging plate is arranged between a sliding plate and each spindle head, a transverse linear guide rail is arranged between the sliding plate and the small dragging plate, and each spindle head can lightly move together with the small dragging plate along the transverse linear guide rail of the sliding plate. The small dragging plates of the every two adjacent spindle heads are provided with a cushion block positioning device and a cushion block, and the small dragging plate of the spindle head at the end is provided with an end cushion block and a locking oblique block. The distance between the every two adjacent spindles can be adjusted according to the distance between workpiece holes, and the spindles are positioned by adopting the precision cushion blocks and locked by using the oblique blocks. The device can conveniently and quickly adjust the distance between the two spindles and ensure that the distance ...

Railway TV monochromatic network multiaerial system

The invention relates to a railway TV monochromatic network multiaerial system in the communication technical field, which comprises a receiver antenna pair arranged on a train and a sending antenna pair arranged on a monochromatic network synchronous transmitting base station along the train. Each receiver comprises two pairs of directive antennas, the polarization mode of which is linear polarization; the directions of polarization of the two pairs of directive antennas is laid in a crossing way at right angles; the maximum gain directions of the two pairs of antennas are both parallel to the direction of advance of the train and opposite at 180 degrees angles. Each base station comprises two pairs of directive antennas, the polarization mode of which is linear polarization; the directions of polarization of the two pairs of directive antennas is laid in a crossing way at right angles; the maximum gain directions of the two pairs of directive antennas respectively point to the center ...

Compact hydraulic motor-pump set and pipeline connecting device thereof

The invention belongs to a compact hydraulic motor-pump set and a pipeline connecting device thereof. The hydraulic motor-pump set is arranged in a shell, wherein a high-pressure pipeline of the hydraulic motor and inlet and outlet pipelines of the pump are all arranged in the shell, and the pipeline connecting device is arranged between the ports of the inlet and outlet pipelines on the hydraulic motor and the high-pressure pipeline in the shell; the inlet and outlet pipelines of the pump are arranged in a pump body and connected with pipelines in the shell in a surface faying mode; the pipeline connecting device comprises a hydraulic conduit, a sealing device, a press sleeve, a stop washer and nuts; a bonding surface part of the hydraulic conduit with a pipeline required to be connected is provided with the sealing device; a liquid conduit end part of the pipeline required to be connected is provided with the press sleeve, the stop washer and the nuts; and a bonding part of the press ...

Die cutting device for paper bag production

The utility model discloses a die cutting device for paper bag production, which comprises a bearing mechanism, a fixing mechanism and a die cutting mechanism, the fixing mechanism is arranged on the rear portion of the bearing mechanism, the die cutting device further comprises a die cutting mechanism for die cutting, and the die cutting mechanism comprises a hydraulic cylinder, a connecting rod, a fixing plate, a cutter, a hydraulic rod and a backup plate. The lower portion of the hydraulic cylinder is slidably connected with the connecting rod, the lower portion of the connecting rod is connected with the fixing plate through a bolt, the cutter is installed on the lower portion of the fixing plate, the hydraulic rod is connected to the inner rear wall of the bearing mechanism through a bolt, and the front portion of the hydraulic rod is connected with the backup plate through a bolt. Under the action of the threaded rotating rod and the auxiliary connecting rod, the pressing block can ...

Digital predistortion device and method

The present invention relates to a digital predistortion device and a method, which are applied to a multichannel single amplifier broadband digital wireless communication system and belong to the technological field of wireless communication. The device includes a time-delay filtering array, a synchronization switch, a quadrature demodulator, an analog-to-digital converter, a time-delay frequency conversion array connected with the synchronization switch and a digital predistortion unit, wherein all the units are connected in order, the input end of the time-delay filtering array is connected with the output end of a power amplifier of the multichannel single amplifier broadband digital wireless communication system, the input end of the digital predistortion unit receives the frequency conversed digital baseband signal, and the output end of the digital predistortion unit outputs a digital carrier. The digital predistortion device and the method resolve the predistortion problem of a ...

Time domain self-adapted balancer

The invention relates to a self-adaptive time domain equalizer comprising a feedforward filter which receives input signal and is used to eliminate forward multipath; a decision-feedback equalization filter used to eliminate backward multipath; a signal superimposer receiving the output from feedforward filter and decision-feedback equalization filter, making a sum and a equalization output; a level decision device which makes a decision for the equalization output and delivers the decision to decision-feedback equalization filter; an error signal generator generating error signal according to input signal and output signal of the decision device; a coefficient updating controller generating tap coefficient according to the error signal to update the tap coefficient of feedforward filter and decision-feedback equalization filter. The level decision device comprises a codebook corrector with the function of code space rotating.

Multiple-spindle synchronous cross-sliding device for boring bars

The invention relates to a multiple-spindle synchronous cross-sliding device for boring bars, which is arranged on a heavy-duty horizontal boring lathe. The multiple-spindle synchronous cross-sliding device provided by the invention comprises a boring bar, two or more brackets and a numerical control system, wherein the boring bar is arranged in the upper bodies of the two or more brackets; each bracket comprises an upper body, a sliding seat, a motor, a speed reducer and a lead screw/nut kinematic-pair, wherein the motor, the speed reducer and a lead screw are arranged on the sliding seat of the bracket, the motor is connected with the speed reducer, and the speed reducer is connected with the lead screw; the lead screw/nut kinematic-pair is composed of the lead screw and a nut, and a nut seat is fixedly arranged on the upper body of each bracket; the lead screw/nut kinematic-pair converts the rotation of the motor into the transverse linear motion of the boring bar and the upper body ...

Method for realizing reduction of memory space and interleaving delay of interleaver in fading channel

The invention relates to a method for realizing reduction of memory space and interleaving delay of an interleaver in a fading channel in the field of mobile communication technology. The method comprises the following steps of: extracting the minimum Doppler frequency and a Rician power factor from the fading channel and acquiring an error code threshold and a threshold level under the conditionof no LDPC codes; acquiring the number that level crosses per second and the average fading time so as to further acquire the number of burst error bits and the number of crossing interval bits in fading duration; determining the type of the interleaver according to a relation between the Doppler frequency and the system baseband signal bandwidth; and determining parameters of the interleaver according to the number of burst error bits and the number of crossing interval bits and the type of the interleaver in the fading duration. According to method, the length of burst errors can be acquired according ...

Railway TV monochromatic network signal overlapping area tester

The invention relates to a railway TV monochromatic network signal overlapping area tester which belongs to the technical field of information and comprises two directional couplers, two high-frequency heads, two A/D converters, two synchronous modules, two crystal oscillators, two PN correlators, two power measuring modules, a data processing module and a display device. When the railway TV monochromatic network signal overlapping area is tested, two frequency points are used for testing. Along the railway, same frequency points are distributed with the interval of emitting stations. Every two contiguous synchronous emitting base stations are on different frequency points, and the monochromatic network test is carried out by processing the relevant condition of the signal receiving power on two frequency points, frame-head synchronous signals and frame-head PN. The invention reduces the complexity and the power consumption of the railway TV monochromatic network test, and improves the ...

Hydraulic unloading structure for vertical column of large size machine tool

The utility model belongs to a hydraulic unloading structure for a vertical column of a large size working machine tool. The hydraulic unloading structure mainly comprises a vertical column, a soft belt guide rail, a hydraulic unloading chamber, an oil supply device and a sealing device, wherein the soft belt guide rail is set on the combination face between the horizontal guide rail of machine tool vertical column and the machine tool body; the soft belt guide rail is provided with one or more hydraulic unloading chambers; an oil supply passage connected with an oil pump is set in the hydraulic unloading chamber; and the sealing device for preventing leakage of hydraulic oil is also set in the hydraulic unloading chamber. The utility model is characterized by simple and rational structure, low production cost, convenience in adjustment and installation, and especially convenience in structural design and production, can better solve the crawling problem in the horizontal motion of the ...

用于局部肿瘤热疗的沸水注入式探针型热疗仪

... 本发明涉及的用于局部肿瘤热疗的沸水注入式探针型热疗仪，包括针体和针管；针体由外壳、带中心盲孔内腔的T型内壳及安装并在中心盲孔内腔中紧密滑动的活塞式推射杆组成，外壳1后端固定焊接在T型内壳后部法兰的下端面上，T型内壳的圆柱形前部同心地位于圆柱筒形外壳之内，二者之间间隙为真空间；针管固定焊接在针体前端，针头由外管、内管及固定于针头前端的焊接物组成，外管和内管之间留有冷却介质通道，针头大端面上安装的连接盖板上设有分别与低温介质容器连通的冷却介质微型喷管和与大气相通的冷却介质喷射出口，焊接物前部带有倾斜面尖端，内孔与内管中心孔相通，具有治疗效果好，升温响应速度快、结构简单、成本低廉，操作简便等优点。 ...

Device for outputting waste material of double cut shear

The invention relates to a waste output device, which is applied to double sheared waste output on an inlet section of a continuous pickling line. The double shear waste output device comprises a second belt conveyor, wherein the input end of the second belt conveyor is positioned below a lower waste downspouting of a double shear; the output end is provided with a slide carriage; and a waster hopper is arranged below the slide carriage. The waste output device is characterized in that a first belt conveyor is arranged between an upper waste downspouting of the double shear and the second belt conveyor; and the input end of the first belt conveyor is positioned below the upper waster downspouting of the double shear and the output end is positioned above the second belt conveyor. The double shear waste output device has the characteristic of long service life.

Inserted pin type yoke plate clamp for replacing linear rod double-linkage double-hanging-point insulator chain

The utility model discloses an inserted pin type yoke plate clamp for replacing a linear rod double-linkage double-hanging-point insulator chain, which comprises an inserted pin type yoke plate clamp body. The lower end of the inserted pin type yoke plate clamp body is provided with an open groove for clamping in a triangle yoke plate, two side edges of the open groove are provided with through holes, the inserted pin type yoke plate clamp is further provided with an inserted pin, the through holes arranged on the two side edges of the open groove arranged on the inserted pin type yoke plate clamp body are communicated with a maintenance hole arranged on the triangle yoke plate, the inserted pin penetrates through the through holes arranged on the two side edges of the open groove arranged on the inserted pin type yoke plate clamp body and the maintenance hole arranged on the triangle yoke plate, and the upper end of the inserted pin type yoke plate clamp body is provided with a connection ...

Method and apparatus for encoding image

The invention relates to a method and a device for encoding image. The method comprises the steps of starting, image acquisition, variable adjustment, encoding, storage and displaying. The device mainly comprises an image acquisition unit, an encode operation unit, a data storing unit, a display unit, wherein, the variable adjustment step is characterized in that image change rate and image complexity are utilized for the adjustment, the quantization scales of I-frame, P-frame, and B-frame, which are need by the encoding, are set, and the frame distance between the I-frame and the P-frame and the motion estimation search range of the I-frame and the P-frame, wherein, the image change rate is judged through the utilization of rates; and the image complexity is judged through the utilization of the entropic numerical value. Therefore, the image data is effectively compressed according to the running status, and the storage space is saved.

Digital signal emitting and receiving system and method thereof

The present invention discloses a digital signal receiving/sending method, which includes procedures below: During digital signal emission, data flows composed of multilevel symbols are divided into continuous data frames for emission. Preset information is added into each data frame for system synchronization, clock resetting, channel estimation and equalizer training. System information is added into each data frame to indicate modulation mode, intersection mode and LDPC coding rate of a current frame of data information. Data information is added into each data frame. Wherein, the preset information, the system information and data information form a simplex one-step circulation. While receiving digital signals, position of the preset information is detected and confirmed. A first symbol clock position next to the preset information is taken as a start of the system information. Position of the system information is detected and confirmed. A first symbol clock position next to the system ...

Low density check code decoding method based on outer information symbol variation

The invention relates to a low density check code decoding method based on outer information symbol variation, belongs to the communication system channel error correcting and decoding technology field. The method comprises: judging whether the hard decision vector of the signal satisfies the verification equation, if satisfies, decoding successively, otherwise, starting the iteration decoding; summing up the initial soft information and outer information of all the verification nodes connected to the last iteration decoding to obtain the information transmitted from the information node to the verification node in the first iteration decoding process; performing symbol comparison to the information and the information transmitted to the verification node in the last iteration, if they aresame, transmitting the information to the verification node, otherwise, multiplying the information by alpha and transmitting to the verification node; the verification node obtaining new soft information ...

Multi-modulation transmission system and data frame filling method thereof

The invention provides a multi-modulation transmission system and a data frame filling method thereof, which relate to the field of digital information transmission, wherein the data frame filling method of the multi-modulation transmission system performs data frame filling after channel coding and mapping, and the data frame filling comprises single-carrier time-domain processing and multi-carrier frequency-domain processing and comprises the following steps: selecting the single-carrier time-domain processing or the multi-carrier frequency-domain processing by a time-domain or frequency-domain selecting module; according to the selection result, performing the processing of inserting reference information on data requiring the single-carrier time-domain processing, wherein the symbolic number of the inserted reference information is L; and according to the selection result, performing the processing of inserting pilot signal or strongly protected unknown information on the data requiring ...

High-voltage transmission tower monitoring device with solar power generation system

The invention relates to a high-voltage transmission tower monitoring device with a solar power generation system. The tower monitoring device comprises a data collection unit, a terminal control unit and a terminal communication unit, wherein the data collection unit is arranged on a high-voltage transmission tower or a base of the high-voltage transmission tower or under the base of the high-voltage transmission tower and is used for collecting environment data of the high-voltage transmission tower and transmitting the environment data to the terminal control unit; the terminal control unit is connected with the data collection unit and is used for processing the environment data from the data collection unit and transmitting the environment data to the terminal communication unit; the terminal communication unit is connected with the terminal control unit and is used for transmitting the environment data of the terminal control unit to a data center server under control of the terminal ...

Machine-carried wireless broadband image transmission system

Compression moulding forming method with wet-process for wave-suction composite material

The invention provides a wet compression molding forming method for wave-absorbing composite materials. The method comprises the following technological steps: firstly, a resin glue solution is prepared and uniformly dispersed; secondly, fabrics and the prepared resin glue solution undergo wet contact molding, namely wet ply stacking setting, and air bubbles generated during the ply stacking process are exhausted; and thirdly, the wave-absorbing composite materials after wet ply stacking undergo die stamping and solidifying on a platen-press, and the means of die stamping and solidifying is as follows: the composite materials after setting undergo solidified forming on the platen-press which is preheated to 40 DEG C, heat insulation at a constant temperature of 40 DEG C for 30 to 40 minutes, heat insulation for 40 to 60 minutes after the temperature is continuously raised to 80 DEG C and stabilized, and then undergo demoulding after a heating device of the press is closed and the temperature ...

Synchronous monitoring self-healing system for broadcast signals of railway television single-frequency network

The invention relates to a synchronous monitoring self-healing system for broadcast signals of a railway television single-frequency network in the technical field of information, which comprises a TSThe invention relates to a synchronous monitoring self-healing system for broadcast signals of a railway television single-frequency network in the technical field of information, which comprises a TSncy network, achieves unattended operation of the synchronous transmitting station, is simple to achieve, has extremely low cost, and is quite suitable for the synchronous transmitting stations in ruency network, achieves unattended operation of the synchronous transmitting station, is simple to achieve, has extremely low cost, and is quite suitable for the synchronous transmitting stations in remote areas with severe environments.emote areas with severe environments. packet monitoring and counting module, a synchronous information packet monitoring module, a signal synchronizing phase-demodulation ...

Carrier track loop adaptive for digital television terrestrial broadcasting

Channel estimating and balancing apparatus for time domain known array OFDM system and method thereof

Forward error correction coding state synchronous system in single-frequency network broadcast

The invention relates to a forward error correction coding state synchronous system in single-frequency network broadcast in the technical field of information, which comprises an enabling time delay The invention relates to a forward error correction coding state synchronous system in single-frequency network broadcast in the technical field of information, which comprises an enabling time delaymodule and a code stream selecting module. A code stream position of the code stream selecting module, into which an FEC synchronous enabling signal output by the enabling time delay module correspondmodule and a code stream selecting module. A code stream position of the code stream selecting module, into which an FEC synchronous enabling signal output by the enabling time delay module correspondingly enters, is the same code stream position corresponding to FEC synchronous enabling output by a synchronizer. The code stream selecting module selects corresponding predetermined sequence outputingly ...

Negative sequence impedance direction protection method for interior failures of stator winding of steamer generator

The invention relates to a protection method for interior failures of a stator winding of a steam turbine generator, belonging to the technical field of main equipment relay protection of a power system. The protection method is characterized by comprising the following steps of: collecting three-phase voltage and three-phase current from the machine end of the generator, filtering fundamental wave negative sequence components of failure components of phase voltage and phase current, calculating the equivalence negative sequence impedance of the failure components of the machine end, and judging whether unsymmetrical failures are interior failures of a motor winding or exterior failures of the machine end according to the symbol and the size of the negative sequence impedance. Analysis for the calculation of all interior short-circuit failures and single-branch welding disconnection failures which possibly occur and the sensitivity in two typical steam turbine generators shows that the ...

Compression moulding forming method with wet-process for wave-suction composite material

The invention provides a wet compression molding forming method for wave-absorbing composite materials. The method comprises the following technological steps: firstly, a resin glue solution is prepared and uniformly dispersed; secondly, fabrics and the prepared resin glue solution undergo wet contact molding, namely wet ply stacking setting, and air bubbles generated during the ply stacking process are exhausted; and thirdly, the wave-absorbing composite materials after wet ply stacking undergo die stamping and solidifying on a platen-press, and the means of die stamping and solidifying is as follows: the composite materials after setting undergo solidified forming on the platen-press which is preheated to 40 DEG C, heat insulation at a constant temperature of 40 DEG C for 30 to 40 minutes, heat insulation for 40 to 60 minutes after the temperature is continuously raised to 80 DEG C and stabilized, and then undergo demoulding after a heating device of the press is closed and the temperature ...

Device for outputting waste material of double cut shear

The invention relates to a waste output device, which is applied to double sheared waste output on an inlet section of a continuous pickling line. The double shear waste output device comprises a second belt conveyor, wherein the input end of the second belt conveyor is positioned below a lower waste downspouting of a double shear; the output end is provided with a slide carriage; and a waster hopper is arranged below the slide carriage. The waste output device is characterized in that a first belt conveyor is arranged between an upper waste downspouting of the double shear and the second belt conveyor; and the input end of the first belt conveyor is positioned below the upper waster downspouting of the double shear and the output end is positioned above the second belt conveyor. The double shear waste output device has the characteristic of long service life.

Double-antenna diversity signal synchronizing system for single-frequency network of single-carrier railway television

The invention relates to a double-antenna diversity signal synchronizing system for a single-frequency network of a single-carrier railway television in the technical field of information, which comprThe invention relates to a double-antenna diversity signal synchronizing system for a single-frequency network of a single-carrier railway television in the technical field of information, which comprthe aim of resisting Doppler broadening under the condition of a railway television channel.es the aim of resisting Doppler broadening under the condition of a railway television channel.ises two RAM input control modules, two RAMs, an RAM output control module and an addition output module, wherein the RAM output control module comprises two read enabling monitoring modules, one readises two RAM input control modules, two RAMs, an RAM output control module and an addition output module, wherein the RAM output control module comprises two read enabling monitoring modules, one read enabling starting ...

Multi-modulation transmission system and data frame filling method thereof

The invention provides a multi-modulation transmission system and a data frame filling method thereof, which relate to the field of digital information transmission, wherein the data frame filling metThe invention provides a multi-modulation transmission system and a data frame filling method thereof, which relate to the field of digital information transmission, wherein the data frame filling method of the multi-modulation transmission system performs data frame filling after channel coding and mapping, and the data frame filling comprises single-carrier time-domain processing and multi-carrihod of the multi-modulation transmission system performs data frame filling after channel coding and mapping, and the data frame filling comprises single-carrier time-domain processing and multi-carrier frequency-domain processing and comprises the following steps: selecting the single-carrier time-domain processing or the multi-carrier frequency-domain processing by a time-domain or frequency-domer ...

Railway TV monochromatic network signal overlapping area tester

The invention relates to a railway TV monochromatic network signal overlapping area tester which belongs to the technical field of information and comprises two directional couplers, two high-frequency heads, two A/D converters, two synchronous modules, two crystal oscillators, two PN correlators, two power measuring modules, a data processing module and a display device. When the railway TV monochromatic network signal overlapping area is tested, two frequency points are used for testing. Along the railway, same frequency points are distributed with the interval of emitting stations. Every two contiguous synchronous emitting base stations are on different frequency points, and the monochromatic network test is carried out by processing the relevant condition of the signal receiving poweron two frequency points, frame-head synchronous signals and frame-head PN. The invention reduces the complexity and the power consumption of the railway TV monochromatic network test, and improves the real-time ...

High-voltage power transmission pole tower base landslide monitoring system

The invention relates to a high-voltage power transmission pole tower base landslide monitoring system which comprises a pole tower monitoring terminal and a data center server. The pole tower monitoring terminal comprises a data collection device for collecting the environmental data of a high-voltage power transmission pole tower, a terminal control device for processing the environmental data and a first communication device for sending the environmental data to the data center server. The data center server comprises a second communication device for receiving the environmental data and transmitting the environmental data to a data processing device. The data processing device comprises a comparison unit, a storage unit and a judging unit, wherein the comparison unit is used for comparing the environmental data obtained each time with the historical data in the storage unit and working out the variable quantity; the storage unit is used for storing the historical data and storing the ...

Limited impulse excited response electric filter equalizer with low noise and its noise reducing method

A finite impact response (FIR) filter quilizer with lower noise is composed of digital signal processor (DSP) and the first and the second transverse filters. Said DSP is for adaptive filter and Saidtransverse filters are for high-speed transverse filter. It features that the intercode interference (sub-channel and in-band disturbance) intensity in input data is detected by DSP and a threshold value is set up according to input S/N ratio. The intercode interference lower than this threshold is treapted as noise. The tapping coefficient only having noise without sub-channe interference is treated as zero, that is, the tapping coefficient has a threshold value and the tapping coefficient lower than the threshold is equal to zero.

数字地面广播传输中基带OQAM信号的生成方法

This invention discloses a method for generating base band OQAM signal in the transmission of digital terrestrial broadcasting. It includes following steps: separating parity; inserting zero into dot interlacing; periodic sequence multiplying; forming filter. The two steps, separating parity and inserting zero into dot interlacing, can be removed. The input data can be multiplied by a periodic sequence directly. Then is sent into a forming filter, the odd tap of the forming filter alternatively outputs path Q and I base band signal, so as to implement path I and Q forming filter, then gets the digital base band OQAM signal. The invention can make combining usage for forming filters in the path Q and I and can also make reversion for the frequency spectrum. It is applied in various OQAM modulations, especially in the hybrid transmission system.

Frequency-conversion constant-current hydrostatic bearing

The invention relates to a frequency-conversion constant-current hydrostatic bearing which comprises a numerical control system, an alternating-current frequency converter, an alternating-current frequency conversion motor, a gear pump, a radial hydrostatic bearing, and a pressure, flow and temperature detection feedback system; the numerical control system comprises a data processing system and a PLC (Programmable Logic Controller), wherein the PLC, the alternating-current frequency converter and the alternating-current frequency conversion motor are connected in sequence; the alternating-current frequency conversion motor is connected with the gear pump, the gear pump is connected with the pressure, flow and temperature detection feedback system and a hydrostatic oil chamber, and the pressure, flow and temperature detection feedback system are arranged between the radial hydrostatic bearing and the data processing system; and a comparison circuit which is used for processing pressure, ...

Single frequency network signal line style coverage method for rail traffic

The disclosed single-frequency network signal line type coverage method for rail traffic refers to idea of overlay area reverse displacement, wherein in receiver, using two directional antenna and modems for signal processing; to every antenna, the overlay area moves toward the reverse direction of antenna main-lobe direction; receiver uses proper algorithm to incorporate the demodulated two-pathsignal for removing the overlay area. This invention models the coverage area to optimize the antenna parameters, therefore improves system link design index obviously.

Multi-color-system reflective insulation mold coating system

The invention provides a multi-color-system reflective insulation mold coating system which is sequentially coated with a levelling putty layer, a closed color-matching undercoat, a reflective insulation mold coating and a top facing varnish from the surface of a base wall body. The coating system can effectively stop heat transfer by the synergistic effects such as reflecting solar irridation and delaying heat conduction, so that the indoor temperature is reduced, the contamination resistance rate is high, the service life is long, and meanwhile, the multiple color systems further has a decorating and beautifying effect during the painting.

Method for refining egg-white lysozyme by circulation hyperfiltration-salting out crystal separation

The invention provides a method for refining egg-white lysozyme by the application of cycling ultrafiltration and salting-out crystallization separation. The method comprises the following steps: firstly, performing pretreatments of dilution, micro-filtration, ultrafiltration and the like on egg white to obtain a raw material liquid of egg white lysozyme; secondly, allowing the raw material liquid to circularly flow through membrane modules in a tangential flow ultra-filter so that an egg-white lysozyme solution is continuously separated and concentrated; thirdly, further concentrating the egg-white lysozyme solution through the ultrafiltration and the salting-out crystallization; and fourthly, performing salting-out crystallization on the egg-white lysozyme solution in a crystallizing tank. With the method, the crystal particle size of the obtained lysozyme is larger than 0.1 millimeter, the particle size is uniform and the appearance is complete, and the lysozyme has a typical crystal ...

Distributed transmission method for variable length synchronous information of digital television single-frequency network

The invention relates to a distributed transmission method for variable length synchronous information of a digital television single-frequency network in the technical field of information, which comThe invention relates to a distributed transmission method for variable length synchronous information of a digital television single-frequency network in the technical field of information, which comprises the following steps: generating a variable length synchronous information packet, namely, generating the variable length synchronous information packet with a Barker code as a packet synchronouprises the following steps: generating a variable length synchronous information packet, namely, generating the variable length synchronous information packet with a Barker code as a packet synchronous head and through error correction coding; adding and extracting the synchronous information packet, namely, adding the synchronous information packet in an adapter into a non-standard empty TS packes ...

Electronic device, antenna and method for forming antenna

The invention provides an electronic device, an antenna and a method for forming the antenna. The electronic device comprises a shell, a signal transceiver and the antenna, wherein the shell comprises a conductor zone manufactured by a conducting material; the antenna comprises an irradiation part and a coupling and matching part; the irradiation part is formed by utilizing the conductor zone and is used for irradiating and receiving signals; the coupling and matching part is coupled to the irradiation part, is connected to the signal transceiver and is used for feeding signals between the irradiation part and the signal transceiver and exciting the irradiation part to irradiate and receive the signals in specified frequency bandwidth. In each technical scheme of the embodiment, the antenna has a good antenna performance while the appearance design and the structure strength of the electronic device are ensured.

Limited impulse excited response electric filter equalizer with low noise and its noise reducing method

Time synchronization system for reducing the performance requirement threshold of monochromatic network broadcast GPS

The invention relates to a time synchronization system for reducing the performance requirement threshold of a monochromatic network broadcast GPS in the information technical field, which comprises a GPS state monitoring module, a time-delay latch module and a time-delay determination module. The GPS state monitoring module carries out the state transition in the position where shortly after a synchronous capsule enabling appears according to the existing time-delay so as to judge whether the work of the GPS is normal. The time-delay latch module updates the latch time-delay to the time-delay sent by the GPS state monitoring module when latch time-delay updating enabling appears and supplies the time-delay to the time-delay determination module. The time-delay determination module monitors enabling signals sent by a synchronous capsule monitoring module. If synchronous enabling signals are discovered, the GPS state is monitored after N system clock cycles are delayed. The system improves ...

Lead backup protection device for live replacement of tension insulator string, and mounting method thereof

The invention relates to a lead backup protection device for live replacement of a tension insulator string, and a mounting method thereof. The device comprises a wing wire clamp, an insulating pull rope, a first operating lever and a second operating lever, wherein a connecting hook is arranged on a wire clamping slot mounting substrate of the wing wire clamp, and the left and right sides of the lower side of the wire clamping slot mounting substrate are respectively hinged with a first pull arm; the first pull arms at the two sides are respectively hinged with a wire clamping block to form a wire clamping slot, and the front ends of the first pull arms are hinged with second pull arms; the front ends of the two second pull arms are hinged and are simultaneously hinged with a U-shaped ring, and an automatic locking spring and a width limiting device are connected between the two second pull arms so that the opening width of the spring is fixed; the two ends of the insulating pull rope ...

Low density check code decoding method based on outer information symbol variation

The invention relates to a low density check code decoding method based on outer information symbol variation, belongs to the communication system channel error correcting and decoding technology field. The method comprises: judging whether the hard decision vector of the signal satisfies the verification equation, if satisfies, decoding successively, otherwise, starting the iteration decoding; summing up the initial soft information and outer information of all the verification nodes connected to the last iteration decoding to obtain the information transmitted from the information node to the verification node in the first iteration decoding process; performing symbol comparison to the information and the information transmitted to the verification node in the last iteration, if they are same, transmitting the information to the verification node, otherwise, multiplying the information by alpha and transmitting to the verification node; the verification node obtaining new soft information ...

Edge sealing device for paper bag processing

The edge sealing device for paper bag processing comprises a gluing mechanism and a pressing mechanism, the gluing mechanism comprises a support, an electric telescopic column and a connecting plate, the electric telescopic column is installed on the inner side of the support, the connecting plate is arranged at the lower end of the electric telescopic column, a glue solution box is arranged on one side of the electric telescopic column, and the pressing mechanism is connected with the glue solution box. A discharging box is arranged on the lower end face of the connecting plate, a connecting column is arranged on the lower end face of the discharging box, a sponge block is installed on the outer side of the connecting column, an opening plate is arranged below the connecting column, a first electric telescopic column is arranged below the opening plate, and a first clamping plate is installed at one end of the first electric telescopic column. The paper bag gluing and pressing device is ...

Synchronous monitoring self-healing system for broadcast signals of railway television single-frequency network

The invention relates to a synchronous monitoring self-healing system for broadcast signals of a railway television single-frequency network in the technical field of information, which comprises a TS packet monitoring and counting module, a synchronous information packet monitoring module, a signal synchronizing phase-demodulation module, a signal synchronizing state control module and an RAM read control module. The system monitors occurrence interval of synchronous information packets in TS stream, and resets or adjusts cache RAM read addresses according to the presence of synchronous error or the severity of error. The system can ensure the synchronization of the signals of the railway television single-frequency network, can automatically make a synchronous transmitting station dropping out of the single-frequency network caused by signal synchronizing error due to the opacity of a distribution link to reenter the single-frequency network, improves the stability of the single-frequency ...

Large-scale steamer generator neutral point lead-out mode and arrangement protecting method

The invention is the drawing mode and protective configuring method for a neutral-point of large-scale steamer generator, belonging to the design and manufacture field of AC machine. On the premise of not changing terminal number on the neutral point side, it separately draws the second (or first) branches of an and B phases and mount them with branches TA, respectively, then connects the branches A1, B1, C1 and C2 (or A2, B2, C1 and C2) together to form the third terminal, mounted with branch TA, on the neutral point side; it can compose traditional incomplete vertical differential protection by the branches TA of the an and B phases and compose a novel differential protection solution by the branch TA of the C phase. By the complete internal failure simulation calculation and check of sensitivity of protection solution, the invention has the properties obviously prior to those of the traditional and need not add any hardware investment, having been confirmed by electric machine manufacturers ...

Transformer substation prevents bird shrouding of nesting

The utility model relates to a transformer substation prevents bird shrouding of nesting, shrouding on the font of falling V to seal the upside space face of cross -section for triangle -shaped's portal frame downwards, vertical shrouding to the side of twice sides are connected with downwards respectively about the shrouding on the font of falling V to seal the both sides space face that is used for installing flip -chip formula post insulators's insulator mounting bracket. This shrouding can prevent effectively not only that birds from nesting, moreover simple structure, easily installation practice.

Transmission mode judging method suitable to digital TV ground broadcasting transmission

Distributed transmission method for variable length synchronous information of digital television single-frequency network

The invention relates to a distributed transmission method for variable length synchronous information of a digital television single-frequency network in the technical field of information, which comprises the following steps: generating a variable length synchronous information packet, namely, generating the variable length synchronous information packet with a Barker code as a packet synchronous head and through error correction coding; adding and extracting the synchronous information packet, namely, adding the synchronous information packet in an adapter into a non-standard empty TS packet in a distributed mode, and extracting the synchronous information packet from a synchronizer; and acquiring the synchronous information packet, namely, carrying out related calculation on bit stream and 13 bits of Barker codes of the synchronous information packet extracted from the synchronizer to find a packet head position, decoding the content in the packet and outputting the content. The method ...

Single-frequency network signal fedback mean in digital TV ground broadcast transmission

The single frequency network comprises a master transmitter with main modulator and several slave transmitters with slave modulators. The mode for feeding TV program signal is as following: TV program code stream enters into the main modulator, passing through channel coding process and data framing process so as to form digital baseband signal; inserting reference information into the said digital baseband signal in equal interval, and dividing the formed signal into two routes in speed of n times of data rate. One route through optical fiber transport network is directly sent to slave modulators in slave transmitters. Based on distance and requirements, slave modulators delays received signal, inserts pilot frequency, carries OQAM modulation. After frequency conversion, signal is transmitted directly. Through proper processes, another route of signal is transmitted directly. Advantages are: reducing complexity for implementing and debugging modulator, lowering cost.

Device for demodulating system information based on rake receiver, and rake receiver included

Diversity receiving terminal and receiving method for digital television single frequency network

LED Lighting Device

A light emitting diode (LED) lighting device includes a light case, a plurality of heatsink, a plurality of LED modules and a plurality of power supplies. Each of the heatsink is connected with one of the LED modules and one of the power supplies correspondingly to form one LED light unit. The LED light units are assembled with the light case to form the LED lighting device.

METHOD AND DEVICE FOR DETECTING AND EVALUATING DEFECT

The present disclosure provides a method and a device for detecting and evaluating a defect with electromagnetic multi-field coupling. The method includes magnetizing a pipeline with the electromagnetic multi-field coupling; detecting a defect of the pipeline along an axial direction of the pipeline at a constant speed; collecting signals at a position of the defect to obtain magnetic leakage signals in three dimensions and an electrical impedance signal; pre-processing the collected signals; decoupling the pre-processed signals, to obtain decoupled magnetic leakage signals and a decoupled electrical impedance signal; performing impedance analysis on the decoupled electrical impedance signal, and determining a type of the defect based on a phase angle of the decoupled electrical impedance signal; and performing quantification analysis on the decoupled magnetic leakage signals and performing quantification evaluation on a size of the defect using a neural network defect quantification method. 1. A method for detecting and evaluating defect with electromagnetic multi-field coupling , comprising:magnetizing, by a magnetizing circuit, a pipeline to be detected with the electromagnetic multi-field coupling;detecting, by a detector, a defect of the pipeline along an axial direction of the pipeline at a constant speed;collecting, by a signal collecting circuit, signals at a position of the defect to obtain magnetic leakage signals in three dimensions at the position and an electrical impedance signal at the position;pre-processing, by a signal processing circuit, the magnetic leakage signals in three dimensions and the electrical impedance signal;decoupling, by a processor, the pre-processed magnetic leakage signals in three dimensions and the electrical impedance signal, to obtain decoupled magnetic leakage signals in three dimensions and a decoupled electrical impedance signal;performing, by the processor, impedance analysis on the decoupled electrical impedance signal, ...

High-precision imaging and detecting device for detecting small defect of pipeline by helical magnetic matrix

A high-precision imaging and detecting device for detecting a small defect of a pipeline by a helical magnetic matrix. The device includes: a helical excitation module including a helical excitation coil; a magnetic matrix detection module, disposed at an inner side of the helical excitation coil and including at least one magnetic sensor group arranged at intervals along an axial direction of the helical excitation coil, group including a plurality of magnetic sensors evenly spaced apart and arranged along a circumferential direction of the helical excitation coil, and the magnetic sensor being configured to detect an induction magnetic field of the pipeline; a signal processing module, connected with the magnetic matrix detection module, and configured to receive, process and output an induction magnetic field signal of the pipeline detected by the magnetic sensor.

Clamping component for clamping a chip module

A clamping component is provided to clamp a chip module, which has a circuit board and a protruding portion protruding upward from an upper surface thereof. In a left-right direction, a width of a first region from a left side of the circuit board to a left side of the protruding portion is greater than that of a second region from a right side of the circuit board to a right side of the protruding portion. Two abutting surfaces respectively abut the left and the right sides of the circuit board. A stopping block is located at a left side of an opening, and extends rightward to the left side of the protruding portion and beyond the left side of the circuit board. When the chip module is installed in the clamping component and the circuit board abuts the abutting surfaces, the stopping block is located above the first region.

Fluid Generating Device and Electric Apparatus Using the Same

A fluid generating device and an electric apparatus utilizing the fluid generating device are provided. The fluid generating device includes a motor and an impeller driven by the motor. The motor is a single phase direct current brushless motor which includes a stator and a rotor. The stator includes a stator core and a stator winding. The stator core includes an outer ring portion, teeth extending inwardly from the outer ring portion, a pole shoe formed at the tooth. Slot openings are formed between the pole shoes. The rotor is received in a receiving chamber defined by the pole shoes. Inner surfaces of the pole shoes and the rotor form therebetween a substantially even air gap. The presence of even air gap can reduce the cogging torque of the motor, thus reducing the startup current and noise of the motor. 1. A fluid generating device comprising: a stator comprising a stator core and a stator winding wound around the stator core, the stator core comprising a yoke, a plurality of teeth extending inwardly from the yoke, a pole face formed at a distal end of each of the teeth and extending along a circumferential direction of the motor;', 'a rotor rotatable relative to the stator, the rotor being received in a receiving chamber surrounded by the pole faces, the rotor comprising a plurality of magnetic poles confronting the pole faces of the stator, outer surfaces of the magnetic poles of the rotor and the pole faces of the stator being coaxial with each other to thereby form there between a substantially even air gap; and, 'a single phase motor comprisingan impeller being driven by the rotor to generate a fluid flow.2. The fluid generating device of claim 1 , wherein the pole faces of adjacent teeth are separated by a slot opening claim 1 , and the slot opening has a width less than or equal to fourth times of a thickness of the air gap.3. The fluid generating device of claim 1 , wherein each tooth comprises a tooth body extending from the yoke and a pair of pole ...

Power Tool with Single Phase Brushless Motor

A power tool includes a main body and a working portion. The working portion is rotatably coupled to the main body. A single phase brushless motor is mounted in the main body to drive the working portion to rotate bidirectionally. In comparison with a traditional motor, the single phase brushless motor make the power tool has a reduced size and reduced cost while ensuring the stable performance. 1. A power tool comprising a main body and a working portion rotatably coupled to the main body , wherein a single phase brushless motor is mounted in the main body to drive the working portion to rotate bidirectionally.2. The power tool of claim 1 , wherein the single phase brushless motor has the same bidirectional startup capabilities.3. The power tool of claim 2 , wherein the single phase brushless motor comprises a stator and a rotor claim 2 , the stator comprises a stator core and windings wound around the stator core claim 2 , the stator core comprises an outer yoke portion and at least two teeth extending inward from the outer yoke portion claim 2 , a concave arc surface is formed on a radial inner end of each tooth claim 2 , the arc surfaces of the teeth cooperatively bound a cavity for receiving the rotor claim 2 , a positioning groove is defined in a circumferential center of each arc surface claim 2 , and each poisoning groove locates on a center line of the corresponding tooth.4. The power tool of claim 3 , wherein an opening or a magnetic bridge is formed between each two adjacent teeth claim 3 , a connecting line connecting a center of the rotor and a center of the opening or magnetic bridge claim 3 , and an extension direction of one of the teeth form an angle of 60-90 degrees.5. The power tool of claim 3 , wherein the circumferential width of each tooth is 0.8-1.6 times of the outer diameter of the rotor claim 3 , the diametrical thickness of the outer yoke portion is 0.3-0.7 times of the outer diameter of the rotor.6. The power tool of claim 1 , wherein the ...

Display device and method of fabricating the same

An organic light emitting diode display includes an integrated circuit, a first electrode, a spacer, an organic material stack layer, and a second electrode. The first electrode is electrically connected to the integrated circuit and has a top surface, a bottom surface, and an inclined surface connecting the top and bottom surfaces. An angle between the inclined surface and the bottom surface is in a range from about 45 degrees to about 80 degrees. The spacer is disposed to cover the inclined surface of the first electrode. The organic material stack layer is disposed on the first electrode. The second electrode is disposed on the organic material stack layer and the spacers.

Electrical connector

An electrical connector includes an insulating body, and a first and second terminal groups located in the insulating body. The second terminal group is located below the first terminal group. The first terminal group has a first grounding terminal, and two pairs of first differential signal terminals located at two sides. The second terminal group has a pair of second differential signal terminals, a second grounding terminal and a power supply terminal located at two sides. The first differential signal terminal, the first and second grounding terminals, and the power supply terminal have a first, third, fourth and fifth fixing portions fixed to the insulating body, and a first, third, fourth and fifth vertical portions bends downward and extends from the corresponding fixing portions. The first grounding terminal is wider than the second differential signal terminal. The fourth and fifth vertical portions are wider than the first vertical portion.

REMOTE NODE DEVICE, OPTICAL NETWORK UNIT AND SYSTEM AND COMMUNICATION METHOD THEREOF

A remote node device for mutual communication between optical network units in a passive optical network includes an N×N-arrayed waveguide grating configured to receive upstream optical signal of one of the optical network units and to output this signal as a first optical signal; a 1×2 wavelength division multiplexer configured to separate per band the first optical signal to obtain a second optical signal; and a 1×(N−1) power distributor configured to transmit the second optical signal to the corresponding optical network unit through the N×N-arrayed waveguide grating. 1. A remote node device for mutual communication between optical network units in a passive optical network , wherein the passive optical network includes an optical line terminal , the remote node device and the optical network units , and the remote node device comprises:an N×N-arrayed waveguide grating configured to receive upstream optical signal of one of the optical network units and to output it as a first optical signal, wherein the first optical signal includes a first part in a first band for communication between the optical network unit and the optical line terminal and/or a second part in a second band for mutual communication between the optical network units, and the first band is different from the second band;a 1×2 wavelength division multiplexer configured to separate per band the first optical signal into the first part and to transmit the first part to the optical line terminal, and/or into the second part and to output the second part as a second optical signal; anda 1×(N−1) power distributor configured to transmit the second optical signal to (N−1) terminals of the N×N-arrayed waveguide grating other than a terminal from which the first optical signal is outputted and a terminal for connection with the optical network unit and to transmit the second optical signal to the corresponding optical network unit through the N×N-arrayed waveguide grating.2. An optical network unit for ...

Single-phase Motor, Airflow Generating Device, And Electric Apparatus

A single-phase motor, an airflow generating apparatus, and an electric apparatus are provided. The motor includes a stator and a rotor. The stator includes a stator core and stator windings. The stator core includes a ring-shaped yoke and multiple pole portions. A magnetic bridge or slot opening is formed between each two adjacent pole portions. An end surface of each pole portion includes an arc surface. A positioning groove is formed in each arc surface. The arc surfaces of the pole portions cooperatively form a receiving cavity. The rotor includes a rotary shaft and a permanent magnet fixed to the rotary shaft. The permanent magnet is received in the receiving cavity. The arc surfaces are located on a cylindrical surface centered around a rotation axis of the rotary shaft. The cogging torque of the motor can be reduced, thus reducing the startup current and hence the noise of the motor. 1. A single-phase motor comprising:a rotor including a rotary shaft and a permanent magnet fixed to the rotary shaft; anda stator including a stator core and stator windings wound around the stator core, the stator core including a yoke and a plurality of asymmetrical pole portions extending inwardly from the yoke, a magnetic bridge or slot opening being formed between each two adjacent pole portions, each pole portion including an end surface with an arc surface facing the rotor, a positioning groove being formed in each arc surface, the arc surfaces of the plurality of pole portions cooperatively forming a receiving cavity in which the permanent magnet is received.2. The single-phase motor of claim 1 , wherein the arc surfaces are located at a cylindrical surface centered around a rotation axis of the rotary shaft claim 1 , the permanent magnet and the arc surfaces define a substantially even gap there between.3. The single-phase motor of claim 2 , wherein a slot opening is formed between each two adjacent pole portions claim 2 , and a width of the slot opening is less than or ...

Modular Elevator Sheave

A modular elevator sheave comprises a mandrel body, wherein multiple sheave units are arranged side by side along the mandrel body, and wherein, the outer wall of the outer circumference of the sheave unit is provided with a groove. In this structural composition, the mandrel body with multiple sheave units, which increases the overall strength and rigidity of the sheave. Furthermore, the number of sheave unit used can be increase and decrease depending on the need or situation, and it should be noted that since the sheave unit can be replaced individually when damaged, it is easier to maintain and reduce repairing costs. 1. A modular elevator sheave comprising: a mandrel body , wherein said mandrel body is provided with a multiple number of sheave units arranged side by side along the mandrel body , and wherein ,each of said sheave units is provided with a groove about the center of the outer wall of the outer circumference.2. The modular elevator sheave as claimed in claim 1 , wherein claim 1 , the inner wall of the inner circumference of the sheave unit and the outer wall of the mandrel body forms a transit fit for a selected drive element.31. The modular elevator sheave as claimed in claim 1 , wherein claim 1 , the end faces of the inner circumference of any two adjacent sheave units are oppressed with each other claim 1 , and the end faces of the outer circumference of any two adjacent sheave units are apart from each other.4. The modular elevator sheave as claimed in claim 1 , wherein claim 1 , said sheave unit comprising an outer circumference claim 1 , an inner circumference claim 1 , a fixing frame claim 1 , two rows of ball body and a seal ring; said seal ring is provided in between the outer circumference and the inner circumference claim 1 , the two rows of ball body is respectively provided on the left and right side of inner groove of the outer circumference and the left and right side of outer grooves of the inner circumference; wherein claim 1 , the ...

Method and device for detecting and evaluating defect

The present disclosure provides a method and a device for detecting and evaluating a defect with electromagnetic multi-field coupling. The method includes magnetizing a pipeline with the electromagnetic multi-field coupling; detecting a defect of the pipeline along an axial direction of the pipeline at a constant speed; collecting signals at a position of the defect to obtain magnetic leakage signals in three dimensions and an electrical impedance signal; pre-processing the collected signals; decoupling the pre-processed signals, to obtain decoupled magnetic leakage signals and a decoupled electrical impedance signal; performing impedance analysis on the decoupled electrical impedance signal, and determining a type of the defect based on a phase angle of the decoupled electrical impedance signal; and performing quantification analysis on the decoupled magnetic leakage signals and performing quantification evaluation on a size of the defect using a neural network defect quantification method.

Identifying natural speech pauses in a text string

There is described a method (400) for automatically identifying natural speech pauses in a text string, the pauses being for use in text to speech conversion performed on an electronic device (100). The method (400) includes obtaining (420) the text string comprising two ends, these ends being a start end and a finish end. Then there is effected a step of analyzing (440) at least one word in the text string to determine if there is a natural speech pause adjacent to the word, the analyzing being based on at least one predefined threshold value for the word, the threshold value being associated with a number of syllables between the word and one of the two ends of the text string. Then there is provided a step of inserting (460) the natural speech pause into a synthesized speech signal output representative of the text string.

A hinge for a cover

Letter to sound conversion for synthesized pronounciation of a text segment

High performance energy saving gas combustor

Device for fixing a tray

Sinking type electrical connector and device thereof

Charging pile

The present disclosure discloses a charging pile, relating to the technical field of vehicle charging. The charging pile comprises a charging pile main body, a mounting back plate, and a wiring assembly. The wiring assembly is arranged on the mounting back plate, wherein the charging pile main body cooperates with the wiring assembly to enable the power connection of the charging pile main body. Compared with the prior art, the charging pile provided in the present disclosure enables split mounting and wiring, improves mounting efficiency, reduces labor costs, and facilitates maintenance and repair, due to the use of a charging pile main body, a mounting back plate, and a wiring assembly mounted on the mounting back plate, which are provided separately.

LED grid light

造影劑、造影劑前驅物或造影劑中間物之高效液相色譜分析方法

本發明係關於一種造影劑、造影劑前驅物或造影劑中間物之高效液相色譜分析方法，其於沖提的過程中，並不持續使用相同成分之沖提劑，而是先使用甲醇比例較低之第一沖提劑動沖提標的物後，再將甲醇比例提高至95~99%作為第二沖提劑進行動沖提至少15分鐘，然後再以第一沖提劑沖提至少60分鐘，以使標的物穩定滯留於管柱，並獲得具有再現性之主訊號滯流時間。

醣質藥物造影劑前驅物之合成方法

本發明係關於一種醣質藥物造影劑前驅物的新穎合成方法，此方法其於完成主結構Z-Gly-ah之合成後，再將半乳糖氨GalNAc(OAc)4參與偶合，並透過使用二氯甲烷來直接析出產物，因此能減少半乳糖氨中受損於液相層析萃取過程的可能，並且搭配使用苄氧羰基而非三氟乙酸基做為保護基，能確保相位之單一性，大幅減少所需要得合成時間以及成本。

Adaptive antenna diversity

The present invention provides a control method of an electronic device is disclosed, wherein the electronic device includes a first antenna and a second antenna. The control method includes the steps of: setting one of the first antenna and the second antenna as a default antenna; receiving a plurality of packets within an interval; for each of the plurality of packets, comparing a signal strength corresponding to the first antenna and a signal strength of the second antenna to generate a first comparison result; updating a first value or a second value according to the first comparison result; wcomparing the first value and the second value to generate a second comparison result when running out the interval; and selecting one of the first antenna and the second antenna to be the default antenna according to the second comparison result.

Pin diode detector, method of making the same, and system including the same

A PIN diode detector includes a substrate. The PIN diode detector further includes a plurality of PIN diode wells in a pixel region, wherein each of the plurality of PIN diode wells has a first dopant type. The PIN diode detector further includes a connecting ring well and a plurality of floating ring wells in a peripheral region, wherein the connecting ring well and plurality of floating ring wells have the first dopant type. The PIN diode detector further includes a field stop ring well surrounding the plurality of floating ring wells, wherein the field stop ring well has a second dopant type opposite the first dopant type. The PIN diode detector further includes a blanket doped region. The blanket doped region extends continuously through an entirety of the pixel region and an entirety of the peripheral region, and the blanket doped region has the second dopant type.

Structure of LED support frame lamp set

Fireproof wall paper (Addition I)

Method of making draw textured yarn with micro fiber fabric with elasticity

Method for animating a facial image using speech data

A method for animating an image is useful for animating avatars using real-time speech data. According to one aspect, the method includes identifying an upper facial part and a lower facial part of the image (step 705); animating the lower facial part based on speech data that are classified according to a reduced vowel set (step 710); tilting both the upper facial part and the lower facial part using a coordinate transformation model (step 715); and rotating both the upper facial part and the lower facial part using an image warping model (step 720).

Testing method for testing process distributed arrangement

Low ripple boost DC-DC converter

斜繞式空心杯線圈繞線設備

Modular elevator sheave

A modular elevator sheave comprises a mandrel body, wherein multiple sheave units are arranged side by side along the mandrel body, and wherein, the outer wall of the outer circumference of the sheave unit is provided with a groove. In this structural composition, the mandrel body with multiple sheave units, which increases the overall strength and rigidity of the sheave. Furthermore, the number of sheave unit used can be increase and decrease depending on the need or situation, and it should be noted that since the sheave unit can be replaced individually when damaged, it is easier to maintain and reduce repairing costs.

Temperature adjustable type hand-touch free water feeding apparatus

Fixture

Adaptive antenna diversity

The present invention provides a control method of an electronic device (100) is disclosed, wherein the electronic device (100) includes a first antenna (ANT1) and a second antenna (ANT2). The control method includes the steps of: setting one of the first antenna (ANT1) and the second antenna (ANT2) as a default antenna; receiving a plurality of packets within an interval; for each of the plurality of packets, comparing a signal strength corresponding to the first antenna (ANT1) and a signal strength of the second antenna (ANT2) to generate a first comparison result; updating a first value or a second value according to the first comparison result; comparing the first value and the second value to generate a second comparison result when running out the interval; and selecting one of the first antenna (ANT1) and the second antenna (ANT2) to be the default antenna according to the second comparison result.

大型タッチセンシングパターンの製造方法

【課題】大型タッチセンシングパターンの製造方法を提供する。【解決手段】大型タッチセンシングパターンの製造方法には、次の手順が含まれる。生成される大規模なタッチセンシングパターンを複数のサブパターンに分割し、それぞれに対応するパターンでマスクを作成する。導電層を有する基材を提供し、導電層にフォトレジスト層を設置する。第１露光プロセスでは、露光サブパターンと複数のターゲットがフォトレジスト層に形成される。順次の露光プロセスでは、順次露光サブパターンと複数のターゲットがフォトレジスト層に形成され、順次露光サブパターンと前述の元の露光サブパターンが互いに隣接して接続される。フォトレジスト層に複数の順次接続する露光サブパターンを形成し、全体露光パターンが形成されるまで前述の順次露光プロセスを繰り返す。フォトレジスト層の全体的な露光パターンを現像し、導電層をエッチングして大型タッチセンシングパターンを形成する。【選択図】図６

System and method of placing an order for financial transaction

無放射性標準品ReO-MN 16-ET之製備方法

本發明係關於一種無放射性標準品ReO-MN 16-ET之製備方法，其係於合成出H3 -MN 16-ET後，先行移除H3 -MN 16-ET的硫端保護基而獲得MN 16-ET，再使用NH4 ReO4 進行反應以合成錯合物ReO-MN 16-ET，排除了過去使用Re(PPh3 )2 Cl3 為反應物時會產生的大量無用副產物，提高ReO-MN 16-ET的產率，並且大幅縮短反應時間，增加了ReO-MN 16-ET模擬製程的價值。

落水頭結構改良

本發明涉及一種落水頭結構改良，尤指一種結構簡單、阻絕效果佳的落水頭結構改良，其係由一底座、一濾蓋及一浮球體所組成，其中底座內面具有一向下傾斜收束的斜導部，又該底座於斜導部下緣接設有一可供浮球體向下貼抵之承部，而浮球體可置於底座之承部內，該浮球體具有能受水浮力浮起之作用，藉此，使得本發明之落水頭結構改良當底座內無水源時，浮球體可利用本身重量向下貼抵於承部上，反之當承部內填充污水時，則可令浮球體向上浮起供排放污水，使本發明除了排水功能外，更具有防蟲、防臭之效果，且由於其整體結構極為簡單，故製造、組裝難度不高，而能大幅降低其成本，進一步可增進其經濟效益。

Electrically controlled active continuous variable transmission for vehicle

A yarn preparation method

Semiconductor device and forming method thereof

A method includes forming a gate structure over a substrate; forming a first gate spacer and a second gate spacer on opposite sidewalls of the gate structure, respectively; implanting a first dopant of a first conductivity type into the substrate form a lightly doped source region adjacent to the first gate spacer, and a lightly doped drain region adjacent to the second gate spacer; forming a patterned mask over a first portion of the lightly doped drain region, while leaving a second portion of the lightly doped drain region exposed; and with the patterned mask in place, implanting a second dopant of the first conductivity type into the substrate, resulting in converting the second portion of the lightly doped drain region into a drain region.

Mouse capable of outputting shortcut key codes and method thereof

Pin-dioden-detektor, verfahren zum herstellen von diesem und system, das diesen aufweist

Ein PIN-Dioden-Detektor weist ein Substrat auf. Der PIN-Dioden-Detektor weist ferner mehrere PIN-Dioden-Wannen in einem Pixelgebiet auf, wobei jede der mehreren PIN-Dioden-Wannen einen ersten Dotierstofftyp aufweist. Der PIN-Dioden-Detektor weist ferner eine Verbindungsringwanne und mehrere Wannen potentialfreier Ringe in einem peripheren Gebiet auf, wobei die Verbindungsringwanne und die mehreren Wannen potentialfreier Ringe den ersten Dotierstofftyp aufweisen. Der PIN-Dioden-Detektor weist ferner eine Feldstoppringwanne auf, die die mehreren Wannen potentialfreier Ringe umgibt, wobei die Feldstoppringwanne einen zweiten Dotierstofftyp aufweist, der dem ersten Dotierstofftyp entgegengesetzt ist. Der PIN-Dioden-Detektor weist ferner ein flächendeckendes dotiertes Gebiet auf. Das flächendeckende dotierte Gebiet erstreckt sich kontinuierlich durch eine Gesamtheit des Pixelgebiets und eine Gesamtheit des peripheren Gebiets, und das flächendeckende dotierte Gebiet weist den zweiten Dotierstofftyp auf.

金屬網格觸控板的信號搭接埠構造

一種金屬網格觸控板的信號搭接埠構造，在其觸控區域內具有金屬網格狀的複數感應串列共同排列形成一觸控感應矩陣，個別所述感應串列的一端緣具一信號搭接埠可電性連接一信號導線的搭接面，將所述感應串列上的觸控信號傳遞到一控制電路遂行信號處理，所述感應串列由金屬網格狀的複數感應電極串連組成，所述感應電極是由複數條微細金屬線縱橫延伸且相互交錯設置以形成一可透光網面，所述可透光網面具有約90％以上的鏤空區域，所述信號搭接埠相較於所述感應電極具有較低比率的鏤空區域，所述信號搭接埠的鏤空區域比率約在85％以下，或者所述信號搭接埠為一實密的面狀區域。

表示装置とその製造方法

【課題】有機発光ダイオード表示装置を提供する。【解決手段】集積回路と、集積回路に電気的に接続され、上面、下面、及び上面と下面とを接続する斜面を有し、斜面と下面との夾角が約４５度〜約８０度である第１の電極と、第１の電極の斜面を被覆するスペーサー層と、第１の電極に設けられる有機材料積層体と、有機材料積層体とスペーサー層に設けられる第２の電極と、を備える有機発光ダイオード表示装置。【選択図】図１

Display device and method of fabricating the same

An organic light emitting diode display includes an integrated circuit, a first electrode, a spacer, an organic material stack layer, and a second electrode. The first electrode is electrically connected to the integrated circuit and has a top surface, a bottom surface, and an inclined surface connecting the top and bottom surfaces. An angle between the inclined surface and the bottom surface is in a range from about 45 degrees to about 80 degrees. The spacer is disposed to cover the inclined surface of the first electrode. The organic material stack layer is disposed on the first electrode. The second electrode is disposed on the organic material stack layer and the spacers.

Anzeigevorrichtung und verfahren zu ihrer herstellung

Eine Organische-Leuchtdioden-Anzeigevorrichtung umfasst einen integrierten Schaltkreis, eine erste Elektrode, eine Abstandshalterschicht, eine Stapelschicht aus organischem Material, und eine zweite Elektrode. Die erste Elektrode ist elektrisch mit dem integrierten Schaltkreis verbunden und hat eine Oberseite, eine Unterseite und eine geneigte Fläche, welche die Ober- und die Unterseite verbindet. Ein Winkel zwischen der geneigten Fläche und der Unterseite liegt in einem Bereich von etwa 45 Grad bis etwa 80 Grad. Der Abstandshalter ist so angeordnet, dass er die geneigte Fläche der ersten Elektrode bedeckt. Die Stapelschicht aus organischem Material ist auf der ersten Elektrode angeordnet. Die zweite Elektrode ist auf der Stapelschicht aus organischem Material und den Abstandshaltern angeordnet.

Grease injection system with an automatic monitoring and alarming device

具提升散熱效果之ｌｅｄ燈具結構

Method for animating an image using speech data

A method for animating an image is useful for animating avatars using real-time speech data. According to one aspect, the method includes identifying an upper facial part and a lower facial part of the image (step 705); animating the lower facial part based on speech data that are classified according to a reduced vowel set (step 710); tilting both the upper facial part and the lower facial part using a coordinate transformation model (step 715); and rotating both the upper facial part and the lower facial part using an image warping model (step 720).

Improvement of supporting post

透明觸控感應裝置

一種透明觸控感應裝置，包含在一透明基底的一表面設有透明的第一 感應層與透明的第二感應層中間由一透明絕緣層將彼此絕緣分隔設置；所述第一感應層上具有複數第一感應串列由複數第一感應單元順沿第一方向的串列成排而組成，所述第二感應層上具有複數第二感應串列由複數第二感應單元順沿第二向的串列成排而組成，複數所述第一感應串列與複數所述第二感應串列彼此呈交錯設置，使複數所述第一感應單元與複數所述第二感應單元呈互補對應設置，組成一連續格狀的感應單元矩陣，其中，所述第一感應層與所述第二感應層為不同材料，所述第一感應單元為一網面狀區塊，所述網面狀區塊是由複數微細金屬導線在同一平面上縱橫延伸且彼此相互電性連接設置以形成一個大部分區域呈鏤空狀的可透光的導電性網面，所述第二感應單元是由透明的導電薄膜所構成的面狀區塊。

Bag width adjustment structure for packing machine

Interactive learning system and its method

離心管與蓋子的組合

美容針施用裝置

一種美容針施用裝置，包含有一握組，具有一握持單元，一接座單元接於該握持單元；該握組的接座單元具有至少兩接設部；多個針座，各針座具有一接把部供裝設於該各接座單元，以及一接針部供接設針頭。

互動式多媒體復健訓練系統

Compressor having damped scroll

Track sliding-door apparatus

Revolving ultrasonic automatic drilling device and automatic machining method thereof

Turntable-type digital alarm clock

動物用之脂肪組織－衍生幹細胞

本發明提供製造及使用用於治療非人類哺乳動物之各種醫學病狀之脂肪-衍生幹細胞之組合物及方法。特定而言，本發明提供可用於在非人類哺乳動物中修復骨折及治療「乾眼」病狀、急性腎衰竭及慢性腎衰竭之方法及組合物。

Ｌｅｄ光源之模組

組換式噴霧器

裝配工作用桌架

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Convenience clamper

一種製造紗線的結構

一種紗線製法

一種紗線製法，其包含了：原材料紗線；第一羅拉，拉伸原材料紗線；節點產生器，設於第一羅拉之後，將紗線噴出節點；清潔室，設於節點產生器後，清洗產生節點後的紗線；材料室，設有添附材，使經產生節點與清潔過後的紗線被添附材添附；第二羅拉，設於材料室後，拉伸經節點產生器、清潔室、材料室的紗線；加熱室，設於第二羅拉後，將材料室中的添附材利用熱定型使其牢牢附著於紗線的各單根纖維；第三羅拉，設於加熱室後，控制紗線於加熱室加熱時間；第四羅拉，設於第三羅拉之後，將處理完成的紗線繞取成型。於是，將紗線製程中加入了添附材，使得添附材特性存在於紗線中，待紗線後製成衣時，添附材牢固的保存於紗線中，不致易於被洗衣機或清洗劑破壞，使添附材特性能長久保存於衣物中。

Adjustment structure for the caster

造影劑之標幟前驅物及其製備方法

本發明係關於一種應用多巴胺受體造影劑的標幟前驅物SnBZM的化學結構以及製備方法，其化學結構上具有易被取代的官能基Bu3Sn，可在取代反應下高產率地形成多巴胺受體造影劑123I-IBZM，同時，製備標幟前驅物SnBZM的過程中也簡化了標準品IBZM的製備方法，讓產物的穩定性獲得改善。

Led燈之散熱結構改良

An equalizer structure and method for error derotation in digital tv receiver

Improved assembly structure of display rack

Simple type doorstop

Anti-cracking screw

Comprehensive exploration method for polymetallic ores in plateau loess coverage areas

Novel structure of selection switch

Object matching method for network trading

美容針施用裝置

Laser lamp for decoration using

LED lamp junction box structure

Structure for light steel frame positioned lamp

Compressor having damped scroll

A compressor may include a shell assembly, orbiting and non-orbiting scrolls, a bearing housing, a bushing, a damper, and a fastener. The bearing housing includes a first aperture. The bushing may include an axial end abutting the bearing housing. The bushing may extend through a second aperture of the non-orbiting scroll. The bushing may include a third aperture. The damper may be received in a pocket that may be defined by and disposed radially between an outer diametrical surface of the bushing and an inner diametrical surface of the non-orbiting scroll. The damper may be at least partially disposed within the second aperture and may encircle the second portion of the bushing. The fastener may include a shaft portion and a flange portion. The shaft portion may extend through the third aperture and into the first aperture. The flange portion may contact a first axial end of the damper.

具多種變化造型之ｌｅｄ燈源模組

可兼具吸頂及吊掛兩用之ｌｅｄ燈結構

路燈之散熱結構

Improved structure of a display stand

Frame device of cultivator

具散熱結構之投射燈

Dismounting mechanism for cardan shaft connector

Colsed type electro-heat injection device for die-casting machine

Construction method for embedded line marking project and finished product thereof

Tunneling method enabling the transparent tunneling of private network to achieve the IP communication

Clamping component for clamping a chip module

A clamping component is provided to clamp a chip module, which has a circuit board and a protruding portion protruding upward from an upper surface thereof. In a left-right direction, a width of a first region from a left side of the circuit board to a left side of the protruding portion is greater than that of a second region from a right side of the circuit board to a right side of the protruding portion. Two abutting surfaces respectively abut the left and the right sides of the circuit board. A stopping block is located at a left side of an opening, and extends rightward to the left side of the protruding portion and beyond the left side of the circuit board. When the chip module is installed in the clamping component and the circuit board abuts the abutting surfaces, the stopping block is located above the first region.

Connector structure