Communication device and method with power correction function

The invention discloses a communication device and method with a power correction function. Power correction can be carried out according to a detection result. The communication device comprises a digital circuit, a detection circuit, a control circuit, a digital end gain adjusting circuit, a digital-analog converter and an analog circuit. The digital circuit is used for providing a digital output signal. The detection circuit is used for executing a preset detection operation to generate the detection result. The control circuit is used for generating a digital end gain adjusting signal and an analog end gain adjusting signal according to the detection result. The digital end gain adjusting circuit is used for adjusting the gain of the digital output signal according to the digital end gain adjusting signal to generate a digital end gain adjusting output signal. The digital-analog converter is used for generating an analog signal according to the digital end gain adjusting output signal ...

FEED ADDITIVE

The additive of forage for livestock and poultry consists of chlorpromazine, quinoline alcohol, humic acid sodium, hawthorn powder, dry scorpion powder, saccharification enzyme and amylase.

Assembly machine tool for steering upper column tube sub-assembly

The invention relates to a steering upper column tube sub-assembly assembling machine tool, and belongs to the technical field of steering upper column tube assembling. The steering upper column tube subassembly assembling machine tool comprises a rack, an indexing turntable, a workpiece clamp, a bearing assembling mechanism, a dust cover assembling mechanism, a spline shaft assembling mechanism, a sliding force tester and a positioning ring assembling mechanism, the rack is provided with an indexing turntable; eight groups of workpiece fixtures are uniformly mounted on the indexing turntable; a bearing assembling mechanism, a dust cover assembling mechanism, a spline shaft assembling mechanism, a sliding force tester and a positioning ring assembling mechanism are sequentially mounted on the rack around the indexing turntable; the steering upper column tube sub-assembly assembling machine tool is compact in structure and ingenious in design; according to the steering upper column tube ...

Front wheel driving control system and method of rubber-tyred paver and rubber-tyred paver

The invention relates to an anti-skid front wheel driving control system for a rubber-tyred paver, comprising a first detector, a second detector, a third detector and a control device. The first detector is used for detecting the working travel speed of the rubber-tyred paver; the second detector is used for detecting the steering angle of the rubber-tyred paver; the third detector is used for detecting the load pressure of the rubber-tyred paver; and the controller respectively receives signals from the first detector, the second detector and the third detector, generates and compares a first pre-output value, a second pre-output value and a third pre-output value and outputs the maximum pre-output value as the final output value to a front wheel driving hydraulic circuit of the rubber-tyred paver. Besides, the invention also relates to a rubber-tyred paver provided with the front wheel driving control system of the type and a method of the front wheel driving control system for controlling ...

Self-rotating super/microgravity-micro interface synergistic reinforced petroleum resin catalytic hydrogenation device and use method thereof

The invention discloses a self-rotating super/microgravity-micro interface synergistic enhanced petroleum resin catalytic hydrogenation device and a use method thereof, the reaction device comprises: a cylindrical heat exchanger, which is provided with a first petroleum resin solution inlet, a material outlet, a second petroleum resin solution inlet and a hydrogen inlet; the coiled tube type reactor comprises a coiled tube, the coiled tube is in a cylindrical spiral shape, and the coiled tube is located in the cylindrical heat exchanger; the left and right ends of the coil pipe are respectively communicated with the first petroleum resin solution inlet and the material outlet; a first material opening communicated with the second petroleum resin solution inlet and a second material opening communicated with the hydrogen inlet are formed in the coil pipe; the preheater is communicated with the first petroleum resin solution inlet and the second petroleum resin solution inlet; a first fluid ...

Micro-rectification device and method for efficiently separating near-boiling-point mixture

The invention discloses a micro-rectification device for efficiently separating a near-boiling-point mixture. The micro-rectification device comprises a feeding plunger pump, a feeding section heat exchanger, a micro-rectification tower, a condenser, a reflux peristaltic pump and a reboiler, at least one of a micro-scale filler structure or a micro-scale tower plate structure is arranged in the micro-rectifying tower, and a gas phase and a liquid phase reversely flow in the micro-rectifying tower and are in contact and mass transfer on the micro-scale filler structure and/or the micro-scale tower plate structure. According to the micro-rectification device disclosed by the invention, the reverse flow of gas-liquid two-phase materials is guided and enhanced by utilizing microstructures such as various tower plates and fillers, and the gas-liquid mass transfer efficiency and the heat exchange efficiency are improved by increasing the gas-liquid two-phase contact area and enhancing gas-liquid ...

Supplement of fodder

Communication system correction method and communication system correction device

The invention discloses a communication system correction method and a communication system correction device. The method is used for correcting a transmission end of a communication system. The method comprises the following steps: generating a test signal at the transmission end; setting at least one correction coefficient at the transmission end; transmitting the test signal to a reception end from the transmission end through the at least one correction coefficient; carrying out spectral analysis on the test signal received by the reception end to obtain a spectral analysis result; and adjusting the at least one correction coefficient of the transmission end according to the spectral analysis result so as to correct the transmission end. On the other hand, the invention further provides a communication system correction method to correct the reception end of the communication system. Besides, the invention also provides a related communication system correction device of the two communication ...

Micro/supergravity-micro interface jet type self-rotating reaction device for strengthening catalytic hydrogenation of heavy turpentine oil/resin oil and use method of micro/supergravity-micro interface jet type self-rotating reaction device

The invention discloses a micro/supergravity-micro interface jet type self-rotating reaction device for enhancing catalytic hydrogenation of heavy turpentine/resin oil. The reaction device comprises a heat exchanger, a micro/supergravity-micro interface jet type self-rotating device and a micro/supergravity-micro interface jet type self-rotating device, the ultra/microgravity-micro interface reactor is arranged in the heat exchanger; and the material inlet is communicated with the fluid conveyor. The invention further discloses a using method of the micro/supergravity-micro interface jet type self-rotating reaction device for strengthening heavy turpentine/resin oil catalytic hydrogenation, centrifugal force is generated by utilizing materials participating in the reaction to perform self-rotating circumferential flow in the reaction device, so that gravity is overcome, and a super/microgravity-micro interface field is formed; therefore, the heterogeneous reaction materials form millimeter-level ...

Intra-tunnel elastic support block type ballastless track dual-line construction process

The invention provides an intra-tunnel elastic support block type ballastless track dual-line construction process which comprises the process flow as follows: preparation of construction; installation of ballast bed bottom plate steel bars; track panel assembling; track panel paving; installation of upper-layer steel bars; coarse adjustment; steel bar insulation test; template installation; fine adjustment; concrete pouring; concrete-face closure; track panel rack disassembly and accessory clearing; ballast bed concrete curing. Polyethylene foam sheets or foam plastic sheets are adopted for settlement joints, and the surface is sealed by use of bituminous cement. The ballast bed concrete curing period is not less than 14 days. According to the intra-tunnel elastic support block type ballastless track dual-line construction process, the purposes of optimizing resource allocation and quickening the construction progress are achieved; the ballastless track construction quality and progress ...

Steal electric detection means

The utility model discloses a steal electric detection means, the device include controller unit, and its triggering signal generation unit sends the alien frequencies signal to scene measurement secondary circuit, signal generating unit, its input links to each other with controller unit, and the output links to each other with scene measurement secondary circuit, signal acquisition element, it is gathered from the alien frequencies signal of on -the -spot measurement secondary circuit feedback to convey to controller unit, controller unit calculates the alien frequencies admittance value of the alien frequencies signal that signal acquisition element acquireed. The utility model discloses a device of modularized design, signal generating unit, signal acquisition element and controller unit all concentrate on in the solitary module for should prevent lacking the compact structure and the interference immunity that flow steal electric detection means and improve greatly, it is anti -electricity ...

Wireless transmission device and correlated method

The invention relates to a wireless transmission method for broadcasting groups to a plurality of receive devices, which includes that: the a plurality of the groups are broadcasted to the receive devices; signals transmitted by the receive devices are received, a plurality of estimated results are generated by the signals which are transmitted by the receive devices, every estimated result corresponds to receive quality of the groups received by every receive device.; every receive device is determined whether the groups are received by the receive device or not according to every estimated result and a receive condition, and at least one of the receive devices for receiving the groups is applicably stored; information corresponding to at least one of the receive device is judged whether a broadcasted group is necessarily re-received or not according to the information and the signal transmitted by at least one of the receive device which is applicable to receive the groups.

Method and device for calibrating and positioning

The embodiment of the invention discloses a method and a device for calibrating and positioning, which are used for calibrating parameters of a mechanical device. The method comprises the following steps: acquiring a calibration value of a parameter to be calibrated in a preset working mode, wherein the calibration value is the actual measurement value of the parameter to be calibrated in the preset working mode; judging whether the calibration value is equal to a system value of the parameter to be calibrated or not in the preset working mode; when the calibration value is judged not equal to the system value, using the calibration value to update the system value; and according to the updated system value, acquiring real-time data of the parameter to be calibrated. The method and the device implement calibration for the parameters of the mechanical device through electric calibration, and achieve the effects of simple calibration and easy usage and maintenance.

Wireless transmission rate adjusting method

The invention discloses a wireless transmission rate adjusting method that is used for adjusting a wireless transmission rate of a wireless transmission device. The method comprises the following steps that: the wireless transmission device enters a rate adjustment mode from a normal operation mode; a plurality of testing packets are transmitted according to a first modulation coding architecture; if the transmission is done successfully based on the first modulation coding architecture, the wireless transmission device returns the normal operation mode and transmits data according to the first modulation coding architecture; and if the transmission can not be carried out successfully, the wireless transmission device maintains to be in the rate adjustment mode, transmits the plurality of testing packets according to a second modulation coding architecture and determines whether the transmission is done successfully according to a preset condition; if the transmission is done successfully ...

Bandwidth selection method

The invention discloses a bandwidth selection method. The method comprises the following steps: extracting at least one first quality information corresponding to a first bandwidth; according to the first quality information and at least one first weighted index, calculating at least one first threshold value; extracting at least one second quality information corresponding to a second bandwidth, and comparing the first threshold value with the second quality information to obtain a first comparative result; according to the first comparative result, selecting one of the first bandwidth and the second bandwidth as a using bandwidth of a filter. The bandwidth selection method decides the using bandwidth of the filter based on the quality information of signals of each bandwidth, dynamically selects the using bandwidth to reduce the influence caused by environmental noise interference, and further effectively improves the transmission quality and transmission efficiency.

Leveler electric control proportional pump control method

Channel mapping generation method and device for wireless communication system

The invention provides a channel mapping generation method and device for a wireless communication system. The channel mapping generation method comprises the first step of conducting power spectrum density detection on multiple channels in a frequency band so as to generate a first channel mapping, the second step of carrying out first smoothing processing on the first channel mapping within a first bandwidth range so as to generate a second channel mapping, wherein the first smoothing processing includes that the channels in the first channel mapping are divided into multiple groups according to the first bandwidth range, and the third step of determining to reserve judgment of the first channel mapping on good channels and bad channels in channel groups according to the number of good/bad channels in all the channel groups in the first channel mapping, or re-marking all the good channels and all the bad channels in the channel groups so as to generate the second channel mapping.

First multi-link device and method for switching operation mode of first multi-link device

The invention relates to a first multi-link device and a method for switching an operation mode of the first multi-link device. A method of switching an operation mode of a first multi-link device includes establishing a plurality of links between the first multi-link device and a second multi-link device, and the first multi-link device determining to receive a plurality of streams via one of the plurality of links or via the plurality of links according to a channel condition.

Self-rotating super/microgravity-micro interface synergetic enhanced C4 alkylation reaction device and use method of self-rotating super/microgravity-micro interface synergetic enhanced C4 alkylation reaction device

The invention discloses a self-rotating super/microgravity-micro-interface synergistic enhanced C4 alkylation reaction device, which comprises more than or equal to 2 heat exchangers, and more than or equal to 2 microgravity-micro-interface synergistic enhanced C4 alkylation reaction devices, the heat exchangers are connected in series, namely the material outlet of the first heat exchanger is communicated with the material inlet of the second heat exchanger; a super/microgravity-micro interface reactor; a fluid conveyor; the invention further discloses a using method of the device for the autorotation super/microgravity-micro interface synergistic reinforcement of the C4 alkylation reaction. According to the invention, centrifugal force is generated by self-rotating circumferential flow of materials participating in the reaction in the reaction device, so that gravity is overcome to form a super/microgravity-micro interface field, and therefore, the heterogeneous reaction materials form ...

Water pipe reel

A water pipe reel is arranged in a box body, a pipeline is fixedly arranged in the box body in the front-back direction, and the rear end, located on the outer side of the box body, of the pipeline is communicated with a pressure water source; the water pipe reel comprises a reel body, an annular groove is formed in the outer side of the circumference of the reel body, a blind hole is formed in the center of the reel body, and the reel body is located in the box body; a water outlet hole is formed in the rear side wall of the annular groove in the disc body; a blocking block is fixedly arranged at the front end of the pipeline, a connecting rod is fixedly arranged in the blind hole, and a radial protruding plate is arranged at the rear end of the connecting rod. A valve port is formed in the side wall of the pipeline, and an annular cutting groove is formed in the inner side wall of the blind hole; a piston plate is slidably connected into the pipeline, and a transmission assembly is arranged ...

Wireless communication device and method of deciding transmission rate group of wireless communication device

The invention discloses a wireless communication device and a method of deciding a transmission rate group of the wireless communication device. The wireless communication device selects one of multiple transmission rates included in the target transmission rate group for transmitting a data packet. The method comprises steps: multiple candidate transmission rate groups are provided; an initial transmission rate group is used for transmitting multiple data packets; within a preset time, the repeated transmission times of the data packets are counted, and a counting result is generated; and according to the counting result, one of the candidate transmission rate groups is selected to serve as the target transmission rate group.

Electric energy measurement check -up current loop alarm device that opens a way

The utility model discloses an electric energy measurement check -up current loop alarm device that opens a way, include: sampling module and monitoring module, the sampling module includes: measure the current data sample thief of three phase current data, the monitoring module includes: singlechip, alarm unit and display element, current data sample thief, alarm unit and display element are connected with the singlechip respectively. The utility model discloses beneficial effect: adopt the less current clamp who has induction coil of volume to carry out the three phase current sampling, utilize electromagnetic induction's principle can be accurately to the electric current collection under the undercurrent condition of opening a way, make things convenient for the connection of electricenergy measurement check -up current loop alarm device that opens a way and gate simultaneously.

Self-rotating bed super/microgravity-micro interface reaction device and use method thereof

The invention discloses a self-rotating bed ultra/microgravity-micro interface reaction device and a use method thereof, the reaction device comprises: a cylindrical heat exchanger, the left and right ends of which are respectively provided with a first material inlet and a material outlet, the side wall of which is provided with a heat exchange fluid inlet and a heat exchange fluid outlet, and the side wall of which is provided with at least two second material inlets; the coil pipe type reactor comprises a coil pipe, the coil pipe is in a cylindrical spiral shape, and the coil pipe is arranged in the cylindrical heat exchanger in the mode that the axis of the coil pipe is distributed in the left-right direction; the left end of the coil pipe is communicated with the first material inlet, and the right end of the coil pipe is communicated with the material outlet; the coil pipe is provided with two material ports which are respectively communicated with one second material inlet; the first ...

Reaction device for catalytic hydrogenation of self-rotating super/microgravity-micro interface synergistically reinforced rosin and use method of reaction device

The invention discloses a self-rotating super/microgravity-micro interface synergistic reinforced rosin catalytic hydrogenation reaction device which comprises heat exchangers, the heat exchangers are connected in series and in parallel, that is, the heat exchangers are connected in series and in parallel, a material outlet of a first heat exchanger is communicated with a material inlet of a second heat exchanger, and so on, and a material outlet of the second heat exchanger is communicated with a material inlet of a third heat exchanger. The material outlet of the Nth heat exchanger is communicated with the material inlets of the (N + 1) th and (N + 2) th heat exchangers; a super/microgravity-micro interface reactor; and the material inlet is communicated with the fluid conveyor. According to the invention, centrifugal force is generated by self-rotating circumferential flow of materials participating in the reaction in the reaction device, so that gravity is overcome to form a super/microgravity-micro ...

Beam former and wireless communication method thereof

The invention discloses a beam former and a wireless communication method thereof. The wireless communication method comprises receiving a plurality of reference messages from and corresponding to a plurality of stations respectively; calculating an evaluation value according to at least one of the reference messages in the plurality of reference messages, wherein the at least one of the reference messages is corresponding to the corresponding station in the plurality of stations; performing comparison on the evaluation values corresponding to the plurality of stations respectively to select a specific station from the plurality of stations, wherein the beam forming operation needs to be performed on the specific station.

Wireless communication device and control method thereof

The invention discloses a wireless communication device and a control method thereof. The wireless communication device is used for being coupled with a multi-antenna module provided with a plurality of antennas. The wireless communication device comprises a switching circuit and a receiving module, wherein the switching circuit is used for changing the connection relations of the antennas according a switching signal in order to provide a plurality of antenna combinations through the multi-antenna module; the receiving module is coupled with the switching circuit; the receiving module comprises a signal intensity measuring circuit for measuring the signal intensity of wireless data packets received by the antenna combinations to generate a plurality of measuring results, and an antenna switching determination circuit for selecting a first comparison group comprising at least two antenna combinations from the antenna combinations at a training stage, allowing the receiving module to receive ...

Carrier frequency offset correcting method

The invention provides a carrier frequency offset correcting method. The method is used for correcting carrier frequency offset of a receiver. The method comprises the steps of receiving at least one carrier frequency offset estimation value generated by digital carrier frequency offset estimation; generating one carrier frequency offset adjustment value according to the at least one carrier frequency offset estimation value; and adjusting an oscillator frequency of an oscillator of the receiver according to the carrier frequency offset adjustment value.

Device and method for choosing transmission path in wireless network

The invention relates to a device for choosing a transmission path in a wireless network, comprising a radio frequency module, a fundamental frequency module and a control module. The radio frequency module is coupled with multiple antennas and is used for processing packets respectively received by the antennas. The fundamental frequency module generates signal strength corresponding to the antennas according to the packets received by each antenna. The control module is coupled with the fundamental frequency module for receiving signal strength and respectively controls the antennas to be either enabled or disabled according to signal strength difference.

Signal processing circuit

A signal processing circuit comprises a first frequency synthesizer, a second frequency synthesizer, a first radio-frequency circuit, a first analog front end circuit, a second radio-frequency circuit and a second analog front end circuit; wherein, the first frequency synthesizer and the second frequency synthesizer are respectively used for generating a first frequency and a second frequency; the first radio-frequency circuit is coupled with the first frequency synthesizer; the first analog front end circuit is coupled with the first radio-frequency circuit; the second radio-frequency circuit is coupled with the second frequency synthesizer; and the second analog front end circuit is coupled with the second radio-frequency circuit; wherein, the first radio-frequency circuit and the firstanalog front end circuit can support signal transmission of a first frequency band, and the second radio-frequency circuit and the second analog front end circuit can support signal transmission of asecond ...

Method and device for calibrating and positioning

The embodiment of the invention discloses a method and a device for calibrating and positioning, which are used for calibrating parameters of a mechanical device. The method comprises the following steps: acquiring a calibration value of a parameter to be calibrated in a preset working mode, wherein the calibration value is the actual measurement value of the parameter to be calibrated in the preset working mode; judging whether the calibration value is equal to a system value of the parameter to be calibrated or not in the preset working mode; when the calibration value is judged not equal to the system value, using the calibration value to update the system value; and according to the updated system value, acquiring real-time data of the parameter to be calibrated. The method and the device implement calibration for the parameters of the mechanical device through electric calibration, and achieve the effects of simple calibration and easy usage and maintenance.

On --spot detection device of three -phase electric energy meter

The utility model discloses an on - -spot detection device of three -phase electric energy meter, including three -phase full electronic programmable power supply, measured module and control computer, control computer and the communication of three -phase full electronic programmable power supply, three -phase full electronic programmable power supply and measured module communication, measured module are examined the electric energy meter electricity with the quilt and are connected, measured module, control computer and three -phase full electronic programmable power supply are all examined the electric energy meter electricity with the quilt and are connected, three -phase full electronic programmable power supply is used for exporting the voltage electric current of arbitrary angle, arbitrary amplitude, and for the electric energy provides virtual load, measured module exports required load according to the size control three -phase full electronic programmable power supply of scene ...

Antenna diversity mechanism and beamforming mechanism coexistence control method

The invention discloses an antenna diversity mechanism and beamforming mechanism coexistence control method. The antenna diversity mechanism and beamforming mechanism coexistence control method applied to a wireless communication device supporting a transmitter/receiver antenna diversity mechanism and a beamformer/beamformee mechanism comprises steps: whether multiple linked wireless communication devices lined with the wireless communication device support the beamformer/beamformee mechanism respectively is judged, and a judging result is generated; and the judging result is used for deciding whether to enable/disable the transmitter/receiver antenna diversity mechanism of the wireless communication device and enable/disable the beamformer/beamformee mechanism of the wireless communication device.

Linear ion trap mass analyzer

The invention relates to a linear iron trap mass analyzer. The linear iron trap mass analyzer comprises four arc cross section type electrodes which are not completely the same and two end cover electrodes. Every two of the four arc cross section type electrodes are in a group, and each group of electrodes are placed in parallel and are connected with the same radio-frequency voltage signals. The electrodes in different groups are placed vertically and are connected with radio-frequency voltage signals which are same in size and opposite in phase. The arc radii of the arc electrodes, the lengths of arcs to chords and the distances between the electrodes are changed to introduce needed high-order fields. An ion leading-out groove is formed in the smallest electrode in the four arc electrodes, and ions are popped out from the ion leading-out groove and are detected to achieve mass analysis.

Wireless network device

A wireless network device includes a timeliness queue, a classification queue, a controller, and a transmitter. The classification queue is related to an access category and a link. The controller is coupled to the classification queue and is used for acquiring a transmission opportunity of the access category according to a group of competition parameters of the access category. The transmitter is coupled to the controller and the timeliness queue, and is used for generating a data frame according to data in the timeliness queue and transmitting the data frame to another wireless network device via the link when the transmission opportunity is acquired and if the timeliness queue stores the data.

Operation method of controller and controller system

The invention provides an operation method of a controller and a controller system for solving the problem in the prior art of inconvenience in production and maintenance of a plurality of controllers which are used at the same time. The method comprises the following steps that: the controller obtains a function identification signal, and executes a function corresponding to the received function identification signal according to the congruent relationship between a preset function identification signal and the function. By adopting the technical scheme, troubles in the production in batch and maintenance and possible loss are reduced.

Multi-antenna transmitting and receiving device and operation method thereof

The invention relates to a multi-antenna transmitting and receiving device and an operation method thereof. The multi-antenna transmitting and receiving device is used for transmitting and receiving a data frame and comprises M RF front-end circuits, an analog front-end circuit and a controller, wherein the controller is used for controlling the usage of the M RF front-end circuits and the analog front-end circuit according to different operation modes so as to achieve the efficacy of energy saving.

Device and method for connecting wireless network

The invention provides a device and a method for connecting a wireless network to achieve wireless connection of an access point. The device comprises a radio frequency module, a fundamental frequency module and a control module, wherein the radio frequency module receives a packet transmitted by the access point; the fundamental frequency module processes the packet to generate signal intensity corresponding to the access point; and the control module generates a conditioning signal according to the signal intensity and adjusts a gain value of the radio frequency module according to the conditioning signal.

Technology for preparing bagasse low-density environment-friendly flexible boards

The invention relates to the technical field of manufacturing of non-wood based panels in the range of artificial chipboards and fiber boards, in particular to a technology for preparing bagasse low-density environment-friendly flexible boards. The technology comprises the following steps that S1, bagasse is dried, S2, bagasse is crushed and screened, S3, gluing is carried out, S4, board blanks are laid, S5, board blanks are pre-pressed, S6, hot-pressing is carried out, S7, edges are sawn, and S8, thermal refining is carried out. The technology can achieve the purpose of even horizontal density of laying of the board blanks, the deviation of the horizontal density is within 3%, an improved practical low-urea-formaldehyde resin adhesive formula is adopted, and parameters of drying and hot-pressing technologies are improved, so that the low-density flexible boards have demanded physical (mechanical) performance and also can meet the standard that the formaldehyde emission is higher than the ...