Low-voltage precharging system for high-voltage variable frequency system, and control method of low-voltage precharging system

The invention discloses a low-voltage precharging system for a high-voltage variable frequency system, and a control method of the low-voltage precharging system. The low-voltage precharging system comprises a high-voltage power supply, a high-voltage switch, a transformer, a low-voltage power supply and a low-voltage precharging circuit, wherein an input end of the high-voltage switch receives the high-voltage power supply; a primary side of the transformer is connected with an output end of the high-voltage switch; a secondary side of the transformer is connected with the high-voltage variable frequency system; an input end of the low-voltage precharging circuit receives the low-voltage power supply; an output end of the low-voltage precharging circuit is connected with a low-voltage winding of the transformer; and the low-voltage precharging circuit comprises a precharging switch, a precharging resistor connected in series with the precharging switch, a maintaining resistor connected ...

Phase automatic compensating system and method of current and voltage synchronous sampling

The invention discloses phase automatic compensating system and method of current and voltage synchronous sampling. By configuring an SOC (System On Chip) chip internal source, an SOC chip internal programmable timer is used for intermittently starting a built-in sampling ADC (Analog-to-Digital Converter) for respectively sampling a voltage passage and a current passage, and an inherent phase difference of a voltage sampling loop and a current sampling loop is converted into a time difference of starting a voltage sampling ADC and a current sampling ADC by a programmable timer according to power grid frequency and sampling frequency, therefore, the time difference of starting the ADCs by a control timer is used for carrying out hardware automatic compensation on the inherent phase difference of the voltage loop and the current loop, and the synchronous sampling of voltage and current is realized without carrying out additional phase compensation by an MCU (Microprogram Control Unit) and ...

Multi-station forming machine of static pressure graphite products

The invention relates to a multi-station forming machine of static pressure graphite products. The multi-station forming machine comprises a frame, a housing, an upper hydraulic cylinder, an upper die, an inner die, a middle die, a lower die, a lifting oil cylinder, a die core and a lower hydraulic cylinder; the upper portion of the frame is provided with the upper hydraulic cylinder; the upper die and the middle die are arranged in the housing; the upper die is connected with the middle die through a bayonet; the bottom of the lower die is provided with the lifting oil cylinder; the die core is of a hollow structure; a microwave heater is arranged inside the die core; a semicircular heater is arranged between the upper die and the housing. According to the multi-station forming machine of the static pressure graphite products, the efficiency is high, the cost is low, the transfer is not required, the production speed is high, and the safe and energy-saving effect is achieved.

Process system standardized design of offshore attended wellhead platform

The invention discloses a standardized design of a process system of an offshore attended wellhead platform, which relates to the technical field of ocean engineering and comprises a main process system, an auxiliary process system and a public system, the auxiliary process system is provided with a discharge opening system, a chemical agent system and a discharge closing system; the public system is provided with a diesel oil system and a public instrument air system; by analyzing and researching the productivity, the physical property and the processing flow of a man-built wellhead platform in the Bohai Sea, the standardization of the process system is realized, and the capability and the size of platform equipment are determined, so that a set of reasonable and complete wellhead platform process system is formed through combination.

Pneumatic conveyor with categorised screening function

The utility model relates to a pneumatic conveyor with categorised screening function, including inhaling material mouth, inlet pipe, material storehouse, exhaust tube, dust collector, roots vacuum pump, its characterized in that: the inside in material storehouse is equipped with three -layer vibratory screen, the equal slanting installation of three -layer vibratory screen, both ends pass through elastic component and link to each other with material storehouse inner wall, and vibratory screen downward sloping one end links to each other the department and also is equipped with screening material mouth with material storehouse inner wall. The utility model overcomes current pneumatic conveyor can not sieve the material, can not be according to the categorised problem of granular size.

Novel graphite crucible static pressure molding machine

The utility model relates to a novel graphite crucible static pressure molding machine, include frame, on hydraulic cylinders, go up mould, centre form, well mould, lower mould, mold core, its characterized in that, well mould, centre form, mold core all are equipped with the zone of heating, be equipped with heating device in the zone of heating, the center of lower mould is equipped with a through -hole, the mold core is located the through -hole at lower mould center, a jet orifice is provided on the zone of heating of mold core, the inside vapour -pressure type glaze spraying device that is equipped with of mold core, the mold core bottom is equipped with lift cylinder. The utility model discloses can accomplish A number of processes such as static pressure molding, low temperature presintering, atmospheric pressure glaze spraying, high temperature burn and automatic depanning rapidly in same equipment, shorten production cycle by a wide margin, reduce manufacturing cost.

Multistation static pressure graphite product's make -up machine

The utility model relates to a multistation static pressure graphite product's make -up machine, including frame, shell, on hydraulic cylinders, last mould, centre form, well mould, lower mould, lift cylinder, mold core, lower pneumatic cylinder, on hydraulic cylinders is installed on frame upper portion, be equipped with mould and well mould in the shell, going up mould and well mould and adopting bayonet coupling, the bottom of lower mould is equipped with lift cylinder, the mold core is hollow structure, and inside is equipped with microwave applicator, it also is equipped with semi -circular heater to go up between mould and the shell. The utility model has the advantages of high efficiency, with low costs, without are transported, the speed of production is fast, safety is energy -conserving.

Dynamic direct-current removing method for intelligent electric meter during alternating-current sampling

The invention discloses a dynamic direct-current removing method for an intelligent electric meter during alternating-current sampling. Cyclic waves of voltage signals and current signals are taken as units, the calculated direct-current component of the last cyclic wave is taken as the reference of the next cyclic wave, and the direct-current component of the last cyclic wave is subtracted from the next cyclic wave repeatedly so as to dynamically remove the direct-current components from alternating-current voltage and current sampling signal data; and the calculation of each direct-current component is at a digital signal stage, and an additional analog circuit is not needed, so the method has the advantages of low implementation cost, obvious improvement on the measuring accuracy of the electrical energy and prominent practical effect.

Method for managing high reliability of electric energy measurement data

The invention discloses a method for managing the high reliability of electric energy measurement data, mainly comprising the steps of preserving and dividing backup regions, preserving the measurement data and recovering the current measurement data. The invention ensures that the data can be preserved more accurately by setting a plurality of data backup regions, provides full preparation for recovering the data, ensures that the data can be recovered or updated more accurately through various judgments and verifications and effectively ensures the reliability of the measurement data. Besides, the position of an indicator is judged before a random storage receives the data and the length of a buffer zone is reasonably set, thereby the measurement data can not be damaged by other modules.

Operation sleeve pipe ground shut -off means is pressed in area

The utility model provides an operation sleeve pipe ground shut -off means is pressed in area, includes bottom sleeve pipe, casing, balancing hole control system, balancing hole plug, casing nipple, water conservancy diversion closing device, spherical sealing system, opens and turn -off transmission, casing off system, the casing is sat on the bottom sleeve pipe, and the casing bottom is equipped with the flange, the one side at casing middle part is equipped with balancing hole control system, and spherical sealing system is installed to the axis position at casing middle part, and the opposite side that balancing hole control system is relative on the casing is equipped with opens and turn -off transmission, spherical sealing system is the ball valve, opens and turn -off transmission and be the controlling means who opens and turn -off ball valve element's rotation, water conservancy diversion closing device is equipped with on spherical sealing system upper portion, and water conservancy ...

SYSTEMS AND METHODS FOR TESTING AND DIAGNOSING MALFUNCTIONS IN A LIQUID DISPENSER

Systems and methods for testing and diagnosing malfunctions in a liquid dispenser are provided. In a general embodiment, the present disclosure provides a testing and diagnosing system including a pre-tester configured to test for and collect testing data regarding an operational status of the liquid dispenser and in communication with the liquid dispenser, a communication central module configured to receive information from the testing device and the pre-tester, and a database management system configured to operate, monitor and control the testing device, the pre-tester and/or the communication central module.

Mouth flow control device of exempting from to change oil

The utility model provides a mouth flow control device of exempting from to change oil, includes the casing, locking bolt, shop bolt, thrust ball bearing, location instruction dish, holding screw, gland, case and axle, twist grip, casing central authorities are equipped with main latus rectum, pack into in proper order case, sealing member, thrust ball bearing, case and axle and connect the twist grip by the gland and through the shop bolt location, compress tightly with the locking bolt again, the twist grip drives the case at the valve body internal rotation, the case is cylinder or ball form, the diameter is greater than the valve body, the center of case or the position of the centre of sphere axis of main latus rectum apart from the valve body on is equipped with eccentric distance, the case is equipped with the main through -hole that deflects away from cylindrical center or centre of sphere axis location, the both sides of main through -hole are thick -layer and thin layer respectively ...

Sucker rod rotary apparatus

The utility model provides a sucker rod rotary apparatus, including the polished rod checkpost, the polished rod eye, the polished rod, the polished rod sealing ware, oil pipe, the sucker rod, the sleeve pipe, it is intraductal that oil pipe goes into the cover down, installation polished rod sealing ware behind set outside of tubes is stretched out on oil pipe's upper portion, the polished rod passes the polished rod sealing ware and is connected with the sucker rod, the sub -unit connection oil -well pump piston of sucker rod, after being blocked by the polished rod checkpost, the upper portion of polished rod hangs on the polished rod eye, the generator is twistd reverse in the installation on the sucker rod, the revolving force that twists reverse the generator production when liquid stream impulsion and sucker rod switching -over motion transmits for the sucker rod, install the fairing between polished rod checkpost and polished rod eye, the sucker rod can rotate by oneself, let the ...

Beverage Preparation Machine Capable of Determining a Beverage Volume of Receptacles and Corresponding Method

A beverage preparation machine includes first and second cameras for capturing first and second images of a receptacle. The beverage preparation machine further includes a control unit configured to determine a receptacle volume based on the first and second images and to determine a beverage volume to be dispensed based on the receptacle volume and the selected filling level or percentage. Regardless of the shape, volume, and/or material of the receptacle, the filling level or percentage for dispensing the beverage can be freely selected via a user interface.

Kill -job device is exempted from to wash by pole pump

The utility model provides a kill -job device is exempted from to wash by pole pump, include top connection, pump main part, dabber, commutative ring, inner spring, outer spring, steel ball, unload oilhole, track groove, the top connection is connected on pump main part upper portion, and fixed tube -shape combination formula sealing mechanism is assembled in proper order to the lower part of pump main part, contains dabber, commutative ring, inner spring, outer spring, track groove, steel ball, the dabber also is tube -shape structural style, and the inner wall between pump main part and top connection slides, is equipped with on the middle part section of thick bamboo wall of pump main part and unloads the oilhole, and outside medium has a perfect understanding through in unloading the oilhole and installing. The pump pole pushes down through repeating, the process of lifting replaces the dabber track to guarantee subjob down take plumber's condition down prevent the effect of spouting ...

Method for producing o-phenylphenol compound

The invention provides a method for producing an o-phenylphenol compound, which comprises the following steps: (1) taking a phosphamide compound as a solvent, preparing alkali metal sand from alkali metal in the solvent, then adding a dibenzofuran compound, and enabling the dibenzofuran compound to react with the alkali metal sand to generate alkali metal salt; and (2) after the reaction is finished, separating out the alkali metal salt, and acidifying the alkali metal salt to obtain the o-phenylphenol compound. The o-phenylphenol compound is prepared by a one-pot method, and alkali metal sand preparation and reaction do not need to be separated. The selectivity and yield of the o-phenylphenol compound produced by the method disclosed by the invention are better than those of the o-phenylphenol compound produced by using ethylene glycol dimethyl ether as a solvent, and the safety is higher.

Control method and control device for air speed of air conditioner and electronic equipment

The invention provides a control method and device for the air speed of an air conditioner and electronic equipment. The air conditioner comprises an upper fan load, a lower fan load and an air deflector load, and the control method comprises the steps that under the condition that the direct blowing prevention function of the air conditioner is not started, the current indoor temperature is obtained; and under the conditions that the indoor adjustment temperature is smaller than or equal to the first preset temperature and the difference between the indoor adjustment temperature and the second preset temperature is smaller than or equal to the preset temperature difference, the air speed gear of the lower fan load is kept unchanged, the rotating speed of the lower fan load is adjusted to the lowest rotating speed, and the indoor adjustment temperature is larger than or equal to the indoor temperature. Through the air conditioner control method and device, the problem that in the prior ...

Mechanism for additionally connecting drill stem to drilling machine

The invention provides a mechanism for additionally connecting a drill stem to a drilling machine. The mechanism comprises a caliper component, a rotating arm, a rotary supporting base frame, a mounting plate and a rotary supporting base, wherein the caliper component can clamp and release the drill stem by adjusting internal parts; the caliper component is arranged at one end of the rotating arm through a rotating pin A; the rotary supporting base is arranged at the other end of the rotating arm through a rotating pin B and a quick pulling pin; the end, far away from the rotating shaft, on the rotary supporting base is connected with the rotary supporting base frame through a rotating shaft; four pin holes are formed in the rotary supporting base; pin holes are also formed in corresponding positions on the rotary supporting base frame; the rotary supporting base and the rotary supporting base frame are fixed by inserting fixing pins; the rotary supporting base frame is connected with the ...

Graphite crucible static pressure molding machine of removable mold core

The utility model relates to a graphite crucible static pressure molding machine of removable mold core, including combined type lower mould, centre form, external mold, guide rail, support, pneumatic cylinder, the combined type lower mould comprises template, mold core, the bottom center of mold core is equipped with takes the internal screw thread recess, be equipped with the template below the mold core, the template center is equipped with the lug of outband screw thread, the lug matches with the groove phase. The utility model provides a need to be changed when the mold core damages or the warp problem of whole lower mould of current make -up machine.

System for implementing programmable service combination facing end user

The invention discloses an end-user programmable capability-orientated service packet realizing system. The service packet realizing system can realize high-efficient and reliable service packet in internet environment. In the invention, a service protocol is regarded as the natural expression of the service packet relationship with loop coupling, and a service network is established on the basis of the existing service by virtue of the inherent service protocol relationship among services, which can support the application environment with complex business collaboration characteristics, such as e-business and the like; furthermore, business domains are divided in the service network according to the protocol, and a programmable service network is established to support the programmable capability of the end-user, thus realizing the service packet according to needs.

Cold beverage dispenser implementing thermoelectric cooling

The invention concerns a chilled beverage dispenser comprising: a beverage cooling reservoir (1) comprising a thermo-electric device (2) and a temperature sensor (10); a beverage supply (3); a pump (4) for pumping the beverage from the beverage supply to the beverage cooling reservoir; and a line (5) for dispensing chilled beverage from the outlet (9) of the beverage cooling reservoir, wherein the line comprises a dispense valve (51), and the dispenser comprises a beverage recirculation line (6) for recirculating the beverage from the beverage cooling reservoir outlet (9) through the pump (4) back to the beverage cooling reservoir (1).

Boundary smoothing method based on SIMP method

The invention relates to the field of optimization algorithms, and discloses a boundary smoothing processing method based on an SIMP method, which comprises the following steps of: 1, defining boundary conditions, material parameters and the like and determining an objective function, 2, initializing an SIMP method structure model, 3, analyzing finite elements and calculating the objective function, sensitivity and the like, 4, updating design variables by using a proper method, and 5, updating the design variables. The boundary smoothing processing method comprises the following steps of (1) designing a design variable, (2) performing sensitivity filtering on the design variable, (6) introducing a high-one-dimension level set curved surface, searching an appropriate contour surface intersected with the level set curved surface, and projecting the contour surface on an xoy surface, and (7) checking whether an optimization condition is met or not, outputting a result if the optimization ...

Combustion chamber residual oil collecting and recycling structure

The invention discloses a residual oil collecting and recycling structure of a combustion chamber. The residual oil collecting and recycling structure comprises a recycling structure, an outer casing and a flame tube which are sequentially arranged along the vertical straight line of the combustion chamber and communicate. The recovery structure comprises a nozzle assembly, a nozzle pipeline assembly and an oil storage structure which are sequentially arranged and communicated, the nozzle assembly penetrates into the outer casing and extends into the flame tube, and the end, away from the nozzle pipeline assembly, of the oil storage structure is communicated with an oil leakage valve assembly on the outer casing; the nozzle assembly comprises a nozzle head and a nozzle shell connected with the outer casing, the nozzle head and the nozzle shell are sequentially arranged and communicated along the vertical center line of the nozzle assembly, the nozzle shell is communicated with the nozzle ...

Thermoplastic polyurethane elastomer foamed beads and preparation method thereof

The invention discloses thermoplastic polyurethane elastomer foamed beads and a preparation method thereof. The preparation method comprises the following steps: adding thermoplastic polyurethane particles and water into a reaction kettle in a mass ratio of 1:(0.8-4); adding liquid carbon dioxide into the reaction kettle, and controlling the pressure intensity and temperature in the reaction kettle to ensure that carbon dioxide in the reaction kettle is in a supercritical state; raising temperature in the reaction kettle to 90-140 DEG C; preserving heat; putting the materials in the reaction kettle into a pressure tank, maintaining the pressure, cooling to be lower than 70 DEG C, performing primary foaming on the thermoplastic polyurethane elastomer particles, and controlling the volume ratio of the reaction kettle to the pressure tank to be 1:(15-30); putting the primary foamed particles in a storage tank for secondary normal-pressure foaming to obtain thermoplastic elastomer foamed beads ...

Double-fed converter LC virtual damping control method and device

The invention discloses a doubly-fed converter LC virtual damping control method and device, the doubly-fed converter comprises a machine-side inverter, a doubly-fed generator and a grid-side LC filter which are connected in sequence, and the method comprises the following steps: obtaining a rotor instruction current according to a stator instruction current and a stator output current; obtaining a rotor output voltage according to a rotor output current and the rotor instruction current; and performing pulse modulation on the machine side inverter according to the rotor output voltage to control and adjust the output voltage of the machine side inverter in the doubly-fed converter so as to indirectly control and adjust the output voltage of a generator stator and realize virtual damping control of the grid side LC filter. The method is simple, low in cost and high in efficiency, and the active damping of the grid-side LC filter can still be realized when the grid-side output voltage is ...

Comprehensive detection vehicle for urban rail transit

The utility model is suitable for the technical field of urban rail engineering machinery, and discloses a comprehensive detection vehicle for urban rail transit, which comprises a vehicle body, a vehicle frame, a vehicle hook, a buffer, a bogie, a pantograph, a braking system, an air conditioning system, a generator set, a storage battery pack and an electrical and control system, the comprehensive detection vehicle for the urban rail transit further comprises an overhead line system detection system, a rail detection system and a limit detection system. Compared with the prior art, the comprehensive detection vehicle for the urban rail transit is simultaneously provided with three sets of detection systems, namely the contact net, the rail and the limit, so that the requirement of simultaneous detection of multiple projects of a subway line can be met; meanwhile, the remote control capacity of the internal combustion rail car is achieved, and the remote control capacity of the electric ...

Specific expression promoter SFS for seed coat and fiber tissue and application of specific expression promoter SFS

The invention belongs to the field of plant genetic engineering, and discloses a specific expression promoter SFS for a seed coat and a fiber tissue and an application of the specific expression promoter SFS. A nucleotide sequence of the promoter SFS is shown in SEQ ID NO.1. The SFS promoter has the characteristics that A the expression of cotton and arabidopsis tissue is very specific, and the promoter is not reported on plants such as cotton; and B the specific expression promoter SFS is novel in structure, and is free of homology together with the reported other promoters in nucleic acid level, and homology sites do not contain a sequence or a mutation site protected by an existing patent.

Automatic return style graphite crucible static pressure molding machine

The utility model relates to an automatic return style graphite crucible static pressure molding machine, include frame, pneumatic cylinder, go up mould, centre form, lower mould, its characterized in that: movable lower mould includes template, activity mold core, gyro wheel, motor, guide rail, the activity mold core is installed in the template through the mode that the screw thread closed soon, and the gyro wheel of electrified machine is installed to the template bottom, and the gyro wheel below is equipped with the guide rail. The utility model has the advantages of self return, the depanning of being convenient for, mold core can be changed rapidly.

Method for inhibiting gastric cancer angiogenesis by using micro vesicles as miRNA (Micro Ribonucleic Acid) transport carriers

The invention discloses a method for inhibiting gastric cancer angiogenesis by using micro vesicles as miRNA (Micro Ribonucleic Acid) transport carriers. Through extraction and identification of micro vesicles, quantitative analysis of miRNA, protein extraction, Western blot, ELISA (Enzyme-linked Immuno Sorbent Assay) and EdU (5-Ethynyl-2'-deoxyuridine) proliferation assays, an in-vitro angiogenesis assay, a tumorigenesis assay and a tail intravenous injection micro vesicle assay, the situation that the quantitative analysis of the content of corresponding miRNA in artificially modified micro vesicles shows that the content of miR-29 is obviously increased by being compared with a negative control is discovered, the VEGF (Vascular Endothelial Growth Factor) protein secretion level of gastric cancer cells is obviously inhibited after the gastric cancer cells are hatched by the micro vesicles containing the miR-29, the proliferation of vascular endothelial cells co-cultured by the gastric ...

Graphite crucible adds hot type mixer

The utility model relates to a heating vibrating graphite crucible mixer, expect motor, support frame including mixing material cylinder, drive mechanism, vibration frame, mixing, its characterized in that, be equipped with with the hot box in mixing the material cylinder, the epaxial heating coil that is equipped with of heating, heating coil's outside is equipped with the heat -conducting cylinder, the surface of heat -conducting cylinder is equipped with the gear form and swells, the below of mixing the material cylinder is equipped with vibration frame. The utility model has the advantages of mix the material high efficiency, have material heating, mixed more even.

QUERYING BIG DATA BY ACCESSING SMALL DATA

A processor executes instructions stored in non-transitory memory to determine whether a query to big data is bounded evaluable, or may be rewritten to access a bounded amount of data or information in a dataset. A query plan may retrieve the information by using indices in access constraints of the query. The cost associated with obtaining the information by using the query plan may be dependent on the query and access constraints and not the size of the dataset. A query plan to obtain the information may be formed for different types or classes of queries, such as conjunctive queries (CQ), unions of conjunctive queries (UCQ) and positive existential FO (first order) conjunctive queries (∃FO). When a query is not bounded evaluable, a determination is made whether an approximation to the information may be retrieved. An approximation may be obtained by using upper and lower envelopes or specialized queries. 1. A device , comprising:a non-transitory memory storage comprising instructions; and receive a query having a set of access constraints to retrieve information,', 'determine a query type of the query,', 'determine whether the query is bounded evaluable under the set of access constraints,', 'form a query plan to retrieve the information when the query is bounded evaluable under the set of access constraints,', 'rewrite the query to a rewritten query using the query plan, and', 'retrieve the information in response to the rewritten query., 'one or more processors in communication with the memory, wherein the one or more processors execute the instructions to2. The device of claim 1 , wherein the set of access constraints include indices and cardinality constraints claim 1 , and wherein an amount of time to retrieve the information is dependent on the query and the set of access constraints and not dependent on a size of the dataset.3. The device of claim 1 , wherein the one or more processors execute the instructions to approximate an answer to the query when the ...

Adaptive maintenance method for improving reliability of service combination

The present invention provides a self-adapting maintenance method for improving the reliability of the service combination. The reliability ensuring problem of the service combination is taken as the control problem by the method, the service combination and the available resource thereof are taken as controlled objects, the service ensuring tactic is taken as a corresponding controller, the service combination and the ensuring tactic compose a closed-loop feedback control system, the reliability ensuring tactic of the service combination can be designed and optimized by Markovian decision process theory. The invention can improve the reliability of the service combination by the reliability variation feedback of the component service based on reinforced learning adaptive control maintenance. Under the Markovian decision process framework, according to the reliability variation condition of the component service, the maintenance tactic can be selected applying the reinforced learning method ...

Heating vibrating graphite crucible mixer

The utility model relates to a heating vibrating graphite crucible mixer, expect motor, support frame including mixing material cylinder, drive mechanism, vibration frame, mixing, its characterized in that, be equipped with with the hot box in mixing the material cylinder, the epaxial heating coil that is equipped with of heating, heating coil's outside is equipped with the heat -conducting cylinder, the surface of heat -conducting cylinder is equipped with the gear form and swells, the below of mixing the material cylinder is equipped with vibration frame. The utility model has the advantages of mix the material high efficiency, have material heating, mixed more even.

Phase automatic compensating system and method of current and voltage synchronous sampling

The invention discloses phase automatic compensating system and method of current and voltage synchronous sampling. By configuring an SOC (System On Chip) chip internal source, an SOC chip internal programmable timer is used for intermittently starting a built-in sampling ADC (Analog-to-Digital Converter) for respectively sampling a voltage passage and a current passage, and an inherent phase difference of a voltage sampling loop and a current sampling loop is converted into a time difference of starting a voltage sampling ADC and a current sampling ADC by a programmable timer according to power grid frequency and sampling frequency, therefore, the time difference of starting the ADCs by a control timer is used for carrying out hardware automatic compensation on the inherent phase difference of the voltage loop and the current loop, and the synchronous sampling of voltage and current is realized without carrying out additional phase compensation by an MCU (Microprogram Control Unit) and ...

Mobile memory with wireless interconnection function and using method of mobile memory

The invention provides a mobile memory with a wireless interconnection function and a using method of the mobile memory. A conversion circuit of the mobile memory comprises a light source driving circuit, a signal detecting circuit and an information processing circuit; the information processing circuit is connected with the mobile memory, a USB (universal serial bus) interface and a man-machine interface and is also connected with the light source driving circuit connected with a light source and the signal detecting circuit connected with a light detector; an external storage card reader is connected with the signal processing circuit; and the mobile memory, a battery, the conversion circuit, the light source and the light detector are arranged in a shell. The using method comprises the following steps of enabling a light transmitting window of a mobile memory A to face a light detecting window of a mobile memory B; reading and encoding selected data by using the mobile memory A and ...

Drive system and method of insulated gate bipolar transistor

The invention discloses a drive system of an insulated gate bipolar transistor. The system comprises the insulated gate bipolar transistor, a first capacitor connected between a grid electrode and an emitting electrode and an electric current drive, wherein the electric current drive comprises a first current output interface and a second current output interface, and the first current output interface and the second current output interface are connected with the two ends of the first capacitor respectively. The invention further discloses a drive method of the insulated gate bipolar transistor. The method includes the following steps of starting signal receiving, charging the capacitor, starting the insulated gate bipolar transistor, shutting off signal receiving, discharging the capacitor and shutting off the insulated gate bipolar transistor. By means of the drive system and method, the starting and shut-off speed of the insulated gate bipolar transistor can be controlled, on-off frequency ...

Industry converter remote diagnosis and m aintenance system

The utility model discloses an industry converter remote diagnosis and m aintenance system, including data center unit and on -the -spot PC unit, on -the -spot PC unit is used for gathering the operating data and the built -in variable of an above converter equipment to preserve to the database in, the data center unit links to each other and carries out data interchange by the network with on -the -spot PC unit, is used for obtaining corresponding converter data in order to carry out remote diagnosis and maintenance to converter equipment. The utility model has the advantages of simple structure, convenient operation, control good reliability.

Protocol-based service combination system and method

Sucker rod-rotating device

The invention relates to a sucker rod-rotating device, which comprises a polished rod clamp, a polished rod eye, a polished rod-sealing device, a tubing, a sucker rod and a casting, the tubing is tripped into the casing, the polished rod-sealing device is mounted after the upper part of the tubing extends out of the casing, the polished rod passes through the polished rod-sealing device to connect with the sucker rod, the lower part of the sucker rod is connected with an oil well pump piston, the upper part of the polished rod is clamped by the polished rod clamp and then hung on the polished rod eye, a torsion generator is mounted on the sucker rod, rotating force which is generated by the torsion generator during flow impulse and the reversing motion of the sucker rod is transmitted to the sucker rod, and a resistance reducer is mounted between the polished rod clamp and the polished rod eye. The sucker rod can self-rotate, the whole periphery of the sucker rod can take part in contact ...

Pneumatic conveyor of falling V -

The utility model relates to a pneumatic conveyor of falling V -, including inlet pipe, material storehouse, dust collector, exhaust tube, roots vacuum pump, its characterized in that: the inside in material storehouse is equipped with the cylinder device, the below of cylinder device is equipped with down " V " type screening plant, " V " type screening plant's below is equipped with the take -up (stock) pan, the bottom of take -up (stock) pan is equipped with rotatory delivery pump. The utility model provides an efficiency is higher, have multiply screening and roll the pneumatic conveyor of material function.

Systems and methods for testing and diagnosing malfunctions in a liquid dispenser

Systems and methods for testing and diagnosing malfunctions in a liquid dispenser are provided. In a general embodiment, the present disclosure provides a testing and diagnosing system including a pre-tester configured to test for and collect testing data regarding an operational status of the liquid dispenser and in communication with the liquid dispenser, a communication central module configured to receive information from the testing device and the pre-tester, and a database management system configured to operate, monitor and control the testing device, the pre-tester and/or the communication central module.

Equipment control method and device, electronic equipment and storage medium

The invention provides an equipment control method and device, electronic equipment and a storage medium, and relates to the technical field of Internet of Things. The method comprises the following steps: acquiring region state data corresponding to each unit region in a target space; the area state data is used for indicating the environment state of the corresponding unit area; determining environment deviation data of each unit area according to the area state data corresponding to each unit area; the environment deviation data is used for indicating the deviation between the environment state of the unit area and the target environment state; according to the environmental deviation data of each unit area, determining environmental adjustment data of each controlled device in the target space; the environment adjustment data is used for indicating the action executed by the controlled equipment for adjusting the environment state of the associated unit area; and controlling the controlled ...

Preparation method of compound phosphate particles

The invention provides a preparation method of compound phosphate granules, which comprises the following components in percentage by weight: 68.75% of sodium dihydrogen phosphate, 24.79% of disodium hydrogen phosphate, 5.46-5.96% of hydroxypropyl cellulose and 0.5-1.0% of magnesium stearate, and the preparation process comprises the following steps of: sieving the sodium dihydrogen phosphate by a 20-40-mesh sieve, sieving the disodium hydrogen phosphate by a 40-mesh sieve, then proportioning, premixing and granulating, and finally preparing the compound phosphate granules. The preparation method comprises the following steps: dissolving hydroxypropyl cellulose in a wetting agent during granulation, then adding the mixture into a wet granulator for granulation, and then drying, dry granule finishing, total mixing and sub-packaging. By adopting the method, the solubility and mixing uniformity of the particles can be improved, and compared with a commercially available reference preparation ...

Equipment control method, device and system, electronic equipment and storage medium

The invention relates to an equipment control method, device and system, electronic equipment and a storage medium. The method comprises the following steps: acquiring current state information in a target space; performing prediction processing on a control instruction corresponding to the current state information based on historical equipment control information through a trained machine learning model to obtain a control instruction matched with the current state in the target space; the machine learning model is obtained by training based on equipment control information and space state information; and if the control instruction meets a target condition, controlling a corresponding target device to execute the control instruction. By adopting the method, control refinement and intelligence can be improved, and meanwhile, the purposes of reducing energy waste and improving comfort can be achieved.

Circulation heat dissipation container formula high-voltage inverter

The utility model discloses a circulation heat dissipation container formula high-voltage inverter, including the container formula frequency conversion room of installing the high-voltage inverter subassembly, be equipped with the updraft ventilator, sky - water-chilling plant, the cold wind transfer passage that connect gradually on the outer wall of frequency conversion room, the air-out end intercommunication of updraft ventilator and frequency conversion room, the air inlet end intercommunication of cold wind transfer passage and frequency conversion room, sky - water-chilling plant with updraft ventilator take out hot-blast cool off after cold wind transfer passage introduce to the frequency conversion indoor be used for circulating dispel the heat. The utility model discloses area is little, the radiating effect good, the environment suitability is strong, the running cost low.

Wide first bolted construction

The utility model provides a wide first bolted construction. The one organic whole is constituteed by bolt head and 2 parts of shank of bolt to wide hook bolt, and shank of bolt body and screw thread be the accepted standard standard still, and bolt head bi -directional equidistance on the center line direction of adjacent bolt is widened, and the adjacent bolt centre -to -centre spacing with the two of over -all -width size equals, unrestricted with this size of widening size direction looks vertical direction on the plane in, needs only the location that the plurality of bolts were accomplished to wide head that the corresponding screw of any bolt alignment one can utilize the bolt to widen during the installation. Adopt wide hook bolt can not only satisfy bolt atress and installation space's requirement, simple to operate moreover, the utility model relates to a still fundamentally has solved the planar removal problem of two directions of reaction frame. This novel structure has simple ...

Automatic service combination method capable of guaranteeing correction and system thereof

The invention relates to an automatic service composition method capable of guaranteeing correction and a system thereof. The automatic service composition method comprises steps of acquiring safety specification, active specification and message map, converting the message map into computer logic formula specification, acquiring business processing executive language file, converting the business processing executive language file into automaton model file, constructing maximum composition service meeting the computer logic formula specification converted from the safety specification, the active specification and the message map through preplanned operation, and finally outputting maximum composition service. Without acquiring verified composition service specification previously, maximum composition service meeting property of correction can be constructed from given service only needing providing the correction property meeting the composition service specification, thereby reducing ...

Dynamic scale formation instrument

The invention discloses a dynamic scaling instrument, comprising two water reservoirs, two high-pressure constant flow pumps, a constant temperature cabinet, a mixing pool arranged in the constant temperature cabinet, a gas storage device connected with the mixing pool by a gas pipe, a high-pressure membrane filter arranged in the constant temperature cabinet, a low-pressure membrane filter, a collector connected with the water outlet of the low-pressure membrane filter by a recovery pipe line and a computer used for receiving the detecting signal of temperature, pressure and lime-magnesia ion from a first and a second sensors. The dynamic scaling instrument of the invention can shorten the time of experiment, quickly choose the minimum mixture proportion of scale amount, offer real technological reference for an injection proposal and preferentially select anti-sludge agent by monitoring the anti-sludge effects of different anti-sludge agent in different consistency. In addition, the instrument ...

Ocean wave swinging generator device

The invention provides an ocean wave swing power generator device, and relates to the technical field of ocean environment-friendly power generation, the ocean wave swing power generator device comprises a basic device, an outer swing device is connected to the basic device in a swing manner, a primary swing space is arranged in the outer swing device, and an inner swing device is arranged in the primary swing space; the swing range of the inner swing device is located in the primary swing space, a generator is arranged in the basic device, and the inner swing device is connected with the generator. Ocean waves fluctuate to push the outer swing device to swing, kinetic energy is transmitted to the inner swing device to drive the inner swing device to swing, interaction promotes the outer swing device to swing towards the opposite side, and the inner swing device swings towards the opposite side when colliding with the inner wall of the primary swing space and drives the outer swing device ...

Beverage preparation machine capable of determining a beverage volume of receptacles and corresponding method

A beverage preparation machine includes first and second cameras for capturing first and second images of a receptacle. The beverage preparation machine further includes a control unit configured to determine a receptacle volume based on the first and second images and to determine a beverage volume to be dispensed based on the receptacle volume and the selected filling level or percentage. Regardless of the shape, volume, and/or material of the receptacle, the filling level or percentage for dispensing the beverage can be freely selected via a user interface.

Vehicle authorization service method, system and device and electronic equipment

The invention discloses a vehicle authorization service method, system and device and electronic equipment, and the method comprises the steps: responding to a service request for a target vehicle, and determining a service terminal corresponding to the service request; based on the authorization operation of a user terminal bound with the target vehicle, the management authority of the service terminal to the target vehicle is opened, and the management authority comprises the positioning authority of the target vehicle and the digital key, so that a service staff corresponding to the service terminal starts the target vehicle according to the digital key; planning a target driving route according to the current location of the target vehicle and a target address in the service request; the real-time driving route of the target vehicle is obtained, if the real-time driving route of the target vehicle deviates from the target driving route, the management authority of the service terminal ...

High availability service combined implementing method based on redundancy mechanism

The present invention provides a high available service combination implementing method based on redundant mechanism. The method adopts an availability price ratio optimum algorithm, the basic ideas comprises that, a selection factor is introduced, namely the ratio of the service combined availability degree increment and the corresponding cost increment can be used as the criterion for selecting which redundant service is increased. The iterate for every time can select the factor maximum service to increase to the corresponding movement. Meanwhile, the method also adopts the monitoring method based on the event. Comparing with the prior art, the invention selects the services with same functions existing in the network by the redundant mechanism, and integrates the services, thereby improving the service combined availability and reducing the unavailability case generating probability.

Method for manufacturing asymmetric super capacitor

The invention relates to a method for manufacturing an asymmetric super capacitor with a solid phase electrode material and liquid phase electrolyte which provide capacitance at the same time. The super capacitor has superhigh energy density, power density and circulating stability. The positive electrode is made of a cobaltous hydroxide/graphene composite electrode material, and the electrolyte is the mixed electrolyte of potassium hydroxide/potassium ferricyanide. The negative electrode is made of an activated carbon/carbon fiber paper electrode material, and the electrolyte is the mixed electrolyte of potassium hydroxide/p-phenylenediamine. The solid phase electrode material and liquid phase electrolyte synchronously and independently provide the capacitance. The asymmetric super capacitor can have high energy density, power density and circulating density under the high charging and discharging density. The energy density is 124.4 Wh/kg under the 2A/g charging and discharging current ...

Frame for subway steel rail grinding wagon

The invention provides a frame for a subway steel rail grinding wagon. The frame has a middle beam, wherein a sleeper beam is arranged on the lower end surface of the middle beam; a front end beam is arranged at one end of the middle beam; one side of the middle beam is connected with an edge beam I through multiple parallel cross beams, and the other side of the middle beam is connected with an edge beam II through multiple parallel cross beams; one end of the edge beam I is vertically connected with one end of the front end beam; one end of the edge beam II is vertically connected with the other end of the front end beam; the other ends of the edge beam I and the edge beam II are connected with the middle beam through a back end beam; a front traction beam is arranged on the lower end surface of one end of the middle beam; one end of the front traction beam is connected with the front end beam; and a back traction beam is arranged on the lower end surface of the other end of the middle ...

Illumination-magnesium ion double-crosslinking alginate hydrogel and preparation method thereof

The invention discloses an illumination-magnesium ion double-crosslinking alginate hydrogel and a preparation method thereof. The illumination-magnesium ion double-crosslinking alginate hydrogel can be prepared by preparing a precursor solution via an alginate solution with photo-crosslinking function, a photoinitiator and magnesium ions with bioactivity and carrying out of ionic reaction and ultraviolet illumination double-crosslinking reaction. According to the illumination-magnesium ion double-crosslinking alginate hydrogel and the preparation method thereof, the magnesium ions are imported into a bracket through an ion crosslinking manner, so that the biological characteristic of the bracket is simply and effectively improved; at the same time, a main framework is formed through photo-crosslinking, so that the stability of the bracket is ensured; and through ultraviolet initiation and the slow crosslinking characteristic of the magnesium ions, the favorable controllability of the bracket ...

LED message box

Air conditioner control method, air conditioner and nonvolatile storage medium

The invention provides an air conditioner control method, an air conditioner and a nonvolatile storage medium, and the air conditioner control method comprises the steps that the outdoor environment temperature Toutside is detected, an outer fan of an air conditioner outdoor unit of the air conditioner is controlled to operate at a preset rotating speed or a normal rotating speed according to the outdoor environment temperature Toutside, and the normal rotating speed is larger than the preset rotating speed; after an outer fan operates at a preset rotating speed and a compressor of the air conditioner operates for a first preset time period, the method for controlling the rotating speed of the outer fan comprises the steps that the indoor environment temperature T < inner > and the module temperature T < module > of a controller mainboard of an air conditioner indoor unit of the air conditioner are detected, and the rotating speed of the outer fan is controlled according to the indoor environment ...

Silicone hydrogel and hydrogel combined corneal contact lens and manufacturing method thereof

The invention discloses a silicone hydrogel and hydrogel combined corneal contact lens and a manufacturing method thereof. The central part of an optical area of the combined corneal contact lens is made of a silicone hydrogel material, and the peripheral part surrounding the central part is made of a hydrogel material; a polysiloxane monomer in the silicon hydrogel material comprises RMS-033, and further comprises one or two of DMS (dimethyl sulfoxide)-R11, SIGMA (styrene-isoglycidyl methacrylate), 1, 3-bis (3-acryloxypropyl) tetra (trimethylsiloxy) disilane and 3-methacryloxypropyl tri (trimethylsiloxy) silane, and the polysiloxane monomer in the silicon hydrogel material also comprises one or two of DMS-R11, SIGMA (styrene-isoglycidyl methacrylate) tetra (trimethylsiloxy) silane. According to the combined corneal contact lens, the problems of poor surface wettability of a silicone hydrogel lens and low oxygen permeability of a hydrogel lens are solved, and different wearing requirements ...

COLD BEVERAGE DISPENSER IMPLEMENTING THERMOELECTRIC COOLING

The invention concerns a chilled beverage dispenser comprising:—a beverage cooling reservoir () comprising a thermo-electric device () and a temperature sensor (),—a beverage supply (),—a pump () for pumping the beverage from the beverage supply to the beverage cooling reservoir,—a line () for dispensing chilled beverage from the outlet () of the beverage cooling reservoir, said line comprising a dispense valve (), wherein the dispenser comprises a beverage recirculation line () for recirculating the beverage from the beverage cooling reservoir outlet () through the pump () back to the beverage cooling reservoir. 1. A chilled beverage dispenser comprising:a beverage cooling reservoir comprising a thermo-electric device and a temperature sensor;a beverage supply;a pump for pumping the beverage from the beverage supply to the beverage cooling reservoir;a line for dispensing chilled beverage from the outlet of the beverage cooling reservoir, the line comprising a dispense valve; andthe dispenser comprises a beverage recirculation line for recirculating the beverage from the beverage cooling reservoir outlet through the pump back to the beverage cooling reservoir.2. A chilled beverage dispenser according to claim 1 , comprising:a selector valve connecting either the beverage supply or the beverage recirculation loop to the pump; anda three-way connector connecting the outlet of beverage cooling reservoir to the dispensing line and to the recirculation line.3. A chilled beverage dispenser according to claim 1 , wherein the temperature sensor is placed far from the side of the beverage cooling reservoir comprising the thermo-electric device.4. A chilled beverage dispenser according to claim 1 , wherein the inlet for introducing the pumped beverage in the beverage cooling reservoir comprises a nozzle configured for agitating the beverage in the reservoir.5. A chilled beverage dispenser according to claim 1 , wherein the nozzle is configured so as to direct the pumped ...

Novel static pressure molding machine of graphite crucible

The invention relates to a novel static pressure molding machine of a graphite crucible. The novel static pressure molding machine of the graphite crucible comprises a chassis, an upper hydraulic cylinder, an upper mold, an inner mold, a middle mold, a lower mold, and a mold core. The middle mold, the inner mold, and the mold core are all provided with heating layers. Heating devices are installed inside the heating layers. A through hole is arranged in the center of the lower mold; and the mold core is arranged inside the through hole in the center of the lower mold. The heating layer of the mold core is provided with an injection orifice. A pneumatic glaze spraying device is arranged inside the mold core; and a hoist cylinder is arranged at the bottom of the mold core. Multiple procedures such as static pressure molding, low-temperature pre-sintering, pneumatic glaze spraying, high-temperature sintering and automatic demolding can be quickly finished within one apparatus, accordingly ...

Track plate replacing machine

The invention discloses a track plate replacing machine which comprises a frame, a first bogie and a second bogie, the first bogie and the second bogie are connected with the frame, first hoisting equipment is arranged above the first bogie, and second hoisting equipment is arranged above the second bogie. According to the track plate replacing machine, the arrangement form of the double hoisting devices is adopted, on one hand, the two hoisting devices can work independently and backup fault modes of each other during independent work, on the other hand, the two hoisting devices can work at the same time, the work range is enlarged during simultaneous work, and the work efficiency is improved.

Circulating heat radiation method of high-voltage frequency converter

The invention discloses a circulating heat radiation method of a high-voltage frequency converter. All devices of the high-frequency converter are mounted in a box-shaped frequency conversion chamber, heat generated during work of the high-frequency converter is led out in the air exhausting form, air is cooled outside the frequency conversion chamber and then sent into the frequency conversion chamber to carry out cooling, and thus, circulating heat radiation is formed. The circulating heat radiation method is good in heat radiation effect, high in environmental adaptability and low in operation cost.

毛皮、制革脱脂处理新工艺

... 本发明一种毛皮、制革处理新工艺，该工艺是在毛皮、制革处理的浸酸工序后鞣制工序前的工序中将毛皮在至少一个原处理工序的基础上进行液压处理或增加一次液压处理工序；本发明采用物理方法脱脂，可使毛皮纤维疏松扩大面积130％以上、去脂效果可达90％以上，且毛皮柔软、无损伤、且毛皮的抗张强度高、毛皮的生产成本低、经济效益高。 ...

Highway tunnel detection system and detection process

The invention relates to the technical field of tunnel construction, and discloses a highway tunnel detection system and technology, and the system comprises a pedestal, the pedestal is provided with a hook, the pedestal is connected with a transportation tool through the hook, the pedestal is rotatably provided with a swing block, the swing block is provided with a detection system, and the detection system is used for carrying out the knocking detection of the inner wall of a tunnel. The base is connected with a transport vehicle through the hook, the vehicle moves to drive the base to move in the tunnel, and the swing block on the base can rotate along the radian of the inner wall of the tunnel while the base moves, so that the collision block can collide the inner wall of the tunnel in a clearance mode, and the collision effect is improved. Echo generated when the impact block impacts the tunnel can be collected by the collector arranged on the swing block, so that subsequent data analysis ...

Air conditioner control method and device, air conditioner and storage medium

The invention discloses an air conditioner control method and device, an air conditioner and a storage medium, and the method comprises the steps that in a refrigeration mode of the air conditioner, the current opening degree of a first throttling device and the current opening degree of a second throttling device are controlled to be preset opening degrees; the environment temperature of the indoor unit is obtained and recorded as the current indoor environment temperature of the indoor unit; the pipe temperature of the first indoor heat exchanger is obtained and recorded as the current pipe temperature of the first indoor heat exchanger; and according to the current indoor environment temperature of the indoor unit, the current pipe temperature of the first indoor heat exchanger and a preset indoor environment temperature threshold value, the current opening degree of the first throttling device and the current opening degree of the second throttling device are adjusted. According to ...

Adaptive maintenance method for improving reliability of service combination

The present invention provides a self-adapting maintenance method for improving the reliability of the service combination. The reliability ensuring problem of the service combination is taken as the control problem by the method, the service combination and the available resource thereof are taken as controlled objects, the service ensuring tactic is taken as a corresponding controller, the service combination and the ensuring tactic compose a closed-loop feedback control system, the reliability ensuring tactic of the service combination can be designed and optimized by Markov decision process theory. The invention can improve the reliability of the service combination by the reliability variation feedback of the component service based on reinforced learning adaptive control maintenance. Under the Markov decision process framework, according to the reliability variation condition of the component service, the maintenance tactic can be selected applying the reinforced learning method, ...

Method and device for quantifying defect size of rolling bearing under variable rotating speed working condition

The invention belongs to the technical field of fault diagnosis, and particularly relates to a rolling bearing defect size quantification method under a variable rotation speed working condition, in particular to a rolling bearing defect size quantification method adopting vibration signals acquired by equal circle turnover angles. Under the variable-speed working condition of the bearing, the equal-circle epicyclic sampling signal is adopted to quantitatively calculate the bearing defect size, and the precision of the calculated bearing defect size is high.

Preparation method of selenium-doped cobalt ditelluride electrode material

The invention is applicable to the technical field of sodium ion batteries, and provides a preparation method of a selenium-doped cobalt ditelluride electrode material, which comprises the following preparation steps: step 1, taking Co (NO) 3.6 H2O, methanol, 2-methylimidazole and absolute ethyl alcohol to synthesize ZIF-67; step 2, taking ZIF-67 powder and Te powder to prepare CoTe2 (CoTe2); step 3, taking the CoTe2 powder and the Se powder to prepare CoTe2-xSex; step 4, taking CoTe2-xSex, super p and CMCNa, and mixing the CoTe2-xSex, super p and CMCNa in deionized water to form slurry; step 5, uniformly coating a copper foil with the diameter of 1.2 cm with the slurry; and step 6, the copper foil coated with the slurry in the step 5 is placed in a vacuum drying oven to be dried for 10 hours, the working electrode is prepared, and the mass of the active substance is about 0.8 mg. After CoTe2 is selenized, the charge-discharge capacity of the electrode material is greatly improved, the ...

Underground pressure control circulating switch valve

The invention discloses an underground pressure control circulating switch valve. The underground pressure control circulating switch valve comprises an upper joint (1), a valve body (2), a lower joint (3), a mandrel (4), a valve base (5), a valve base support body (6), an elastic seal (7), a flashboard (8), a pin shaft spring (9), a cushion pad (10), a mandrel elastic jaw (11), a mandrel exhaust hole (12), a mandrel oil pressure liquid inlet hole (13) and a valve body sleeve pressure liquid inlet hole (14), wherein the upper part of the valve body (2) is connected with the upper joint (1), and the lower part of the valve body (2) is assembled and fixed with a cylindrical combined sealing mechanism in sequence; the mandrel (4) is a cylindrical structure, and slides on the inner walls of the valve body (2) and the upper joint (1); the middle cylinder wall of the mandrel (4) is provided with the mandrel oil pressure liquid inlet hole (13) communicated to the inner wall of the valve body; ...

Stake device is sealed in stake of prestressed anchorage pole static pressure among civil engineering

The utility model discloses a stake device is sealed in stake of prestressed anchorage pole static pressure among civil engineering, including passing the power steel column, pass the power crossbeam, the jack, press the stake reaction beam, press the stake reaction frame, seal the stake screw rod and press the stake screw rod, seal the stake screw rod and press the stake screw rod equal vertically pre -buried in newly -increased cushion cap, pass the vertical setting of power steel column, the power that passes backing plate has all been welded to the top and the bottom that pass the power steel column, the bottom that passes the power steel column is stood on in the static pressure stake, it transversely sets up to pass the power crossbeam, the middle part supporting that passes the power crossbeam is on the top that passes the power steel column, the both ends that pass the power crossbeam are connected with a stake screw rod, pass the vertical jack of putting of upper surface that the ...

Frequency conversion speed adjusting device output filter and control method

The invention discloses a frequency conversion speed adjusting device output filter and a control method; the output filter comprises a three-phase adjustable reactor and more than one output capacitor units; one end of the three-phase adjustable reactor is connected with a three-phase output end of the frequency conversion speed adjusting device, and the other end is respectively connected with each output capacitor unit through an access switch; the output capacitor unit comprises a three-phase capacitor matched with the three-phase adjustable reactor. The control method adjusts the three-phase adjustable reactor according to needed output impedance when the frequency conversion speed adjusting device needs to output sine waves, and controls to close each output capacitor unit according to an LC cut-off frequency; the control method can cut off all output capacitor units when the frequency conversion speed adjusting device needs to output PWM waves, thus adjusting an output voltage through ...

Preparation method of sodium phosphate granules

The invention provides a preparation method of sodium phosphate granules. The sodium phosphate granules comprise the following components in percentage by mass: 68.75% of sodium dihydrogen phosphate, 24.79% of disodium hydrogen phosphate, 0.79%-4.81% of hydroxypropyl cellulose, 0.69%-5.51% of low-substituted hydroxypropyl cellulose and 0.16%-0.96% of magnesium stearate, and the preparation process is wet granulation. The adhesive, the disintegrating agent and the lubricant are added according to a specific proportion, so that the dissolubility, uniformity and flowability of the granules can be ensured. Sodium dihydrogen phosphate with large particles is sieved by a proper screen and is not crushed, so that the preparation time can be saved, the adhesion phenomenon is avoided in the preparation process of the granules, the uniformity is good, and the method is more suitable for small-specification sub-packaging of sodium phosphate particles.

Soft start circuit, controller and switching power supply

The invention discloses a soft start circuit, a controller and a switching power supply. The soft start circuit comprises a soft start preprocessing circuit, a boost following comparison circuit and a logic circuit. The first output end of the soft start preprocessing circuit outputs a first voltage signal to the input end of the boost following comparison circuit; the boost following comparison circuit boosts the first voltage signal to a second voltage signal, and a feedback voltage signal output by a voltage following end of the boost following comparison circuit follows the second voltage signal; the comparison output end of the boost following comparison circuit outputs a third voltage signal to the input end of the logic circuit, and the logic circuit is configured to turn the third voltage signal into a high level when the feedback voltage signal is lower than the second voltage signal or the feedback voltage signal and the second voltage signal are higher than a set voltage range ...

Data analysis method and data analysis device

The invention discloses a data analysis method and a data analysis device, which relate to a data processing technology and are used for reducing the manpower resource management cost. The data analysis method provided by the invention comprises the following steps of: obtaining each sampling datum, and obtaining the sub PES (Performance Evaluation System) value of each sampling datum; obtaining target sampling data with the sub PES value being smaller than the preset value according to the sub PES value of each sampling datum; and determining target sampling data to be processed in the target sampling data. The data analysis method and the data analysis device are mainly used in a salary calculation technology and can reduce the manpower resource management cost.

Rain cover assembly and air conditioner

The utility model provides a rain cover assembly and an air conditioner, the rain cover assembly comprises a cover main body and a cover part, the cover main body is provided with an opening, the cover part covers the opening, and the cover part and the cover main body define a containing cavity; the cover body comprises a fixing side wall and a pipe installation side wall which are connected, a pipe installation opening is formed in the pipe installation side wall, a first fixing groove and a second fixing groove are formed in the fixing side wall in a penetrating mode, a first edge is arranged at the opening of the fixing side wall, and the first fixing groove extends inwards from the first edge. The rainproof cover assembly can be conveniently installed in a narrow space.

Method for correcting timing precision of RTC inside SOC in intelligent electric meter

The invention discloses a method for correcting the timing precision of a real-time clock (RTC) in a system on a chip (SOC)-based intelligent electric meter, which is based on an external crystal oscillator, an on-chip RTC module of the SOC and a timer. For eliminating the influence of different parameters on the timing precision, the clock output precision of the RTC inside the SOC is periodically calculated to correct the offset of actual output frequency of the external crystal oscillator and the nominal output frequency of an crystal oscillator, so the influence of different influencing parameters on the crystal oscillator is eliminated, and the timing precision of the RTC inside the SOC is improved.

Protocol-based service combination system and method

The invention discloses a protocol-based service combination system and method. The system comprises a composite service operating environment, a service bus, a service information manager, a service monitoring system and an optimizing manager, wherein the composite service operating environment interacts with a client through the service bus and is used to load the operation, management and monitoring of each service of the client; the service monitoring system is used to monitor the services in the composite service operating environment and feed the monitoring result back to the optimizing manager and the service information manager; the optimizing manager is used to optimize and adjust the monitoring result of the service monitoring system according to a set optimizing management strategy; and the service information manager is used to manage the service bus and the composite service operating environment according to the monitoring result of the service monitoring system. The method ...

Process for processing fur and tanning

A new technology for processing fur and leather features that a hydraulic pressing step is added before tanning step to defat it. Its advantages are large area of loosened fur fibres (increased by 130% or more), high defatting effect up to 90% or more, soft fur, no damage, high tension strength, and low cost of production.

High -voltage inverter low pressure that can restrain charges shoved is charging system in advance

The utility model discloses a high -voltage inverter low pressure that can restrain charges shoved is charging system in advance, including high -pressure charging circuit, low pressure charging circuit and transformer in advance, high -pressure charging circuit and low pressure charging circuit in advance are connected with the transformer respectively, charge to high -voltage inverter through the transformer, low pressure charging circuit in advance includes the low voltage power supply, precharge switch and the reactor of establishing ties in proper order, high pressure charging circuit is including the high voltage power supply and the high -voltage switch that establish ties in proper order. The utility model discloses an at low pressure series reactor among the charging circuit in advance, can effectual suppression low pressure precharge process shove to short -circuit current in the time of effectively limiting high -voltage switch and close a floodgate between high voltage power ...

Control device and control method for energy storage type wind power converter

The invention discloses a control device and a control method for an energy storage type wind power converter, and the control device comprises an MPPT control module for realizing maximum power tracking, and also comprises a primary frequency modulation control module which is used for obtaining additional regulation power according to the system frequency deviation and the charge state of an energy storage unit in the energy storage type wind power converter, primary frequency modulation control is realized; the virtual inertia control module is used for obtaining additional power according to the system frequency change rate so as to realize virtual inertia control on the energy storage unit; and the reference power generation module is used for generating a power reference value according to the additional power and the additional adjusting power and providing the power reference value to the MPPT control module. The inertia support and primary frequency modulation capability of the ...

A test system and a test method for a plurality of power units

The invention discloses a test system and a test method for a plurality of power units; the test system comprises a test power supply adjusting module, a fiber ring network test module and a test load module connected in sequence, wherein the test load module is used for providing a test load; the fiber ring network test module comprises a main controller and a plurality of tested power units; the tested power units are cascaded in sequence through fibers so as to form a test path; the main controller is respectively connected with two ends of the test path through fibers so as to form a fiber test ring network; the main controller sends a control order, the control order is transferred to the corresponding tested power unit through the fiber test ring network, and state information sent by each tested power unit is returned to the main controller through the fiber test ring network; the test method is the test method of the test system. The test system and test method can test the plurality ...

Refrigerant heat exchange system, air conditioner and heat exchange method of air conditioner

The invention relates to a refrigerant heat exchange system, an air conditioner and a heat exchange method.The refrigerant heat exchange system comprises a compressor, a first heat exchanger, a second heat exchanger and a refrigerant radiator which are connected in series through a first pipeline to form a closed loop, and the refrigerant radiator is connected with the first heat exchanger and connected with part of the first heat exchanger in parallel through a second pipeline; refrigerants discharged by the compressor are divided into a first refrigerant and a second refrigerant, and the flow of the second refrigerant can be adjusted, so that the first refrigerant returns to the compressor after being subjected to condensation heat release through the second heat exchanger and evaporation heat absorption through the first heat exchanger in the closed loop in the first circulation direction, and the second refrigerant enters the second pipeline in the second circulation direction; and ...

Voltage characteristic detection system and method of SOC (System On Chip) intelligent electric meter

The invention discloses voltage characteristic detection system and method of an SOC (System On Chip) intelligent electric meter. The system comprises a three-phase voltage signal sampling circuit, a three-phase voltage signal filter circuit, an SOC internal zero crossing detector and an SOC internal timer, wherein the SOC internal zero crossing detector is used for detecting a zero-crossing state and a zero-crossing sequence of each phase voltage signal, the SOC internal timer is used for detecting the length of each phase voltage signal period, the three-phase voltage signal filter circuit which is arranged through the external of a chip filters out high-frequency alternating current signals to ensure the accuracy of zero-crossing detection in a SOC chip, and the SOC internal timer interrupts length detection of each phase voltage signal period based on the zero-crossing detection generated by the zero crossing detector. By the technical scheme of the invention, the zero-crossing detection ...

High voltage soft start and TCR filter integrated device and method

The invention discloses a high voltage soft start and TCR filter integrated device and method; the device comprises a high voltage thyristor valve block unit, a high voltage reactor unit, a soft start fling-cut switch GK3, and a filter fling-cut switch GK4; one end of the high voltage thyristor valve block unit is connected with a high voltage power supply through connecting a breaker QF2 and a first isolation switch GK1, and the other end is respectively connected with two branches through a second isolation switch GK2, wherein one branch is connected with a motor through the soft start fling-cut switch GK3 so as to realize soft start of the motor, the other branch is connected with the high voltage reactor unit through the filter fling-cut switch GK4; an output end of the high voltage reactor unit is connected with an input end of the first isolation switch GK1 so as to realize TCR filter compensation; the method comprises a motor soft start step and a TCR filter compensation step. The ...

Fault-tolerant fractal topological circuit network structure

The invention discloses a fault-tolerant fractal topological circuit network structure. The structure comprises one or more basic circuit units, each basic circuit unit comprises three switches and two functional elements, the first end of the first switch is connected with the first end of the first functional element and is taken as the first connecting end of the corresponding basic circuit unit, the second end of the first switch is respectively connected with the first end of the second functional element and the first end of the second switch, the second end of the first functional element is respectively connected ith the second end of the second switch and the first end of the third switch, and the second end of the second functional element is connected with the second end of the third switch and is taken as the second connecting end of the corresponding basic circuit unit. The circuit topological structure is based on the fractal design theory, the large-range fault-tolerant effect ...

Direct-current supply device of control system

The invention relates to a direct-current supply device of a control system. The direct-current supply device comprises a first low-voltage power source, a second low-voltage power source, a main rectification unit, an auxiliary rectification unit and a delay switch unit, wherein the main rectification unit is electrically connected between the output end of the first low-voltage power source and the power source input end of a control system, the auxiliary rectification unit is electrically connected between the output end of the second low-voltage power source and the power source input end of the control system, and the delay switch unit is electrically connected between the second low-voltage power source and the auxiliary rectification unit, and used for being connected with a circuit between the second low-voltage power source and the auxiliary rectification unit after the main rectification unit is powered on and started, and enables the auxiliary rectification unit to be powered ...

EJECTING DEVICE

An ejecting device includes a housing and a pushing mechanism received in the housing. The pushing mechanism includes a pushing component. The pushing component is movably secured to the housing for pushing an object. When the pushing mechanism is in a resisting state, the pushing component protrudes out of the housing to push the object. When the pushing mechanism is in an unresisting state, the pushing component retracts into the housing and disengages from the object. 1. An ejecting device for ejecting an object , comprising:a housing, and a pushing component movably secured to the housing for pushing the object;', 'wherein when the pushing mechanism is the resisting state, the pushing component protrudes out of the housing to push the object, and when the pushing mechanism is the unresisting state, the pushing component is retracted into the housing and is disengaged from the object., 'a pushing mechanism received in the housing and operable between a resisting state for resisting the object and an unresisting state for disengaging from the object, the pushing mechanism comprising2. The ejecting device as claimed in claim 1 , wherein the pushing mechanism comprises a first elastic component received in the housing claim 1 , the first elastic component connects to the pushing component for providing a resisting force to the pushing component.3. The ejecting device as claimed in claim 2 , wherein the pushing component comprises a pushing portion and a sleeve sleeved on the pushing portion claim 2 , the sleeve connects between the pushing portion and the first elastic component; the pushing portion is capable of being retracted into the housing when the pushing mechanism is in the unresisting state claim 2 , and is capable of protruding out of the housing when the pushing mechanism is in the resisting state.4. The ejecting device as claimed in claim 3 , wherein the pushing mechanism comprises a supporting component claim 3 , the supporting component engages with ...

INSTALLATION DEVICE AND ELECTRONIC APPARATUS

An automatic installation device for automatic procuring and fixing an object to a product is mounted on a base. The automatic installation device comprises an elevating mechanism, a loading mechanism for procuring the object, and a flexing mechanism connected between the elevating mechanism and the loading mechanism. The flexing mechanism is capable of driving the loading mechanism moving between the object and the product for aligning the object with the product in a first orientation. The elevating mechanism is capable of driving the loading mechanism to move in a second orientation perpendicular to the first orientation to drive the loading mechanism moving adjacent to the product and fixing the object to the product. 1. An electronic apparatus , for automatically procuring and fixing an object to a product , the electronic apparatus comprising:a base for positioning the object and the product; and an elevating mechanism mounted on the base;', 'an loading mechanism for procuring the object; and', 'a flexing mechanism connected between the elevating mechanism and the loading mechanism;, 'an automatic installation device mounted on the base, the automatic installation device comprising;'}wherein when the flexing mechanism drives the loading mechanism moving in a first orientation, the loading mechanism is moveable between the object and the product for aligning the object with the product; when the object is aligned with the product, the elevating mechanism drives the loading mechanism and the flexing mechanism moving in a second orientation perpendicular to the first orientation to fix the object to the product.2. The electronic apparatus as claimed in claim 1 , wherein the flexing mechanism is capable of driving the loading mechanism to move in the first orientation to align the loading mechanism with the object claim 1 , the elevating mechanism is capable of driving the loading mechanism to approach and procure the object in the second orientation.3. The ...

SYSTEMS AND METHODS FOR TESTING AND DIAGNOSING MALFUNCTIONS IN A LIQUID DISPENSER

Systems and methods for testing and diagnosing malfunctions in a liquid dispenser are provided. In a general embodiment, the present disclosure provides a testing and diagnosing system including a pre-tester configured to test for and collect testing data regarding an operational status of the liquid dispenser and in communication with the liquid dispenser, a communication central module configured to receive information from the testing device and the pre-tester, and a database management system configured to operate, monitor and control the testing device, the pre-tester and/or the communication central module. 1. A liquid dispenser testing and diagnosing system comprising:a liquid dispenser;a pre-tester configured to test for and collect testing data regarding an operational status of the liquid dispenser;a communication central module configured to receive information from the testing device and the pre-tester; anda database management system configured to operate, monitor and control at least one of the testing device, the pre-tester or the communication central module, the database management system is programmed with an algorithm to determine whether the testing data is within or outside of specifications.2. The liquid dispenser testing and diagnosing system of claim 1 , wherein the communication central module is configured to monitor environmental temperature and humidity.3. The liquid dispenser testing and diagnosing system of comprising a testing device configured for evaluating one or more conditions in the liquid dispenser claim 1 , the testing device being in communication with the liquid dispenser.4. The liquid dispenser testing and diagnosing system of claim 3 , wherein the testing device comprises an electrical safety tester.5. The liquid dispenser testing and diagnosing system of claim 3 , wherein the testing device comprises an air leakage detector.6. The liquid dispenser testing and diagnosing system of comprising a responding module configured ...

METHOD FOR ANALYZING TOLERANCE DISTRIBUTIONS IN A FREEFORM SURFACE MIRROR OF AN OPTICAL SYSTEM

A method for analyzing distribution of tolerances on a freeform surface in an optical system. Establishes a freeform surface imaging optical system. A plurality of fields is selected, and maximum and minimum margins of wavefront errors in each field are defined. One freeform surface in one field is selected, an isolated point jumping model is established, and an isolated point is placed in different areas of the freeform surface of the one field. A local figure error with extreme values corresponding to each field is resolved, based on the maximum and minimum margins of wavefront erroes, and the local surface tolerance distributions of the freeform surface in the plurality of fields are integrated together. 1. A method for analyzing tolerance distribution in freeform surface mirror of optical system comprising:{'b': '10', 'step (S), establishing a freeform surface imaging optical system;'}{'b': '11', 'step (S), selecting a plurality of fields in a range of fields of the freeform surface imaging optical system, defining a maximum margin and a minimum margin of a wavefront error in each of the plurality of fields; and selecting a freeform surface mirror in the freeform surface imaging optical system;'}{'b': '12', 'step (S), establishing an isolated point jumping model, and sequentially applying an isolated point to different areas of the freeform surface mirror in each of the plurality of fields;'}{'b': '13', 'step (S), reverse solving a local figure error extremum corresponding to each of the plurality of fields based on the maximum margin and the minimum margin; and'}{'b': '14', 'step (S), integrating the local surface tolerance distributions of the freeform surface mirror in the plurality of fields, to obtain a surface tolerance distribution of the freeform surface mirror.'}4. The method of claim 1 , wherein when the wavefront errors of all rays are between the maximum margin and the minimum margin claim 1 , a wavefront error value of each ray is set to be less ...

Pivoting clamping assembly

A pivoting clamping assembly includes a carrier, clamping arm pivotably coupled to the carrier and configured to clamp or release a workpiece on the carrier, a lock arranged on the carrier and configured to lock the clamping arm when the clamping arm is rotated toward the workpiece, and at least one clamping block coupled to the clamping arm by a shaft and at least one resilient member. The shaft pivotably couples a pivoting joint of the at least one clamping block to the clamping arm. The at least one resilient member is coupled between the clamping block and the clamping arm.

INSTALLATION FIXTURE FOR INSTALLING SEALING RING

A device for installing an elastic sealing ring on an electronic device includes a clamp module and a pressing module. The clamp module includes a sliding column defining two grooves, two linkage plates, and two pins secured on the bottom end of the linkage plates. The pressing module includes a bracket and a knockout plate. The linkage plates are rotatably installed on the bracket and the sliding column can slide relative to the bracket. The knockout plate can slide relative to the bracket, to install the sealing ring on an electronic device. 1. An installation fixture configured to install a sealing ring on an electronic device comprising: a sliding column defining two grooves;', 'two linkage plates; and', 'two pins secured on the bottom end of the linkage plates;, 'a clamp module comprising a bracket; and', 'a knockout plate;, 'a pressing module comprisingwherein the linkage plates are rotatably installed on the bracket, the sliding column being slidable relative to the bracket to locate the two pins in a first position or in a second position;wherein when the two pins are in the first position, the top end of the linkage plate resists against the sliding column, the two pins are proximate one another and passed through the knockout plate;wherein when the two pins are in the second position, the sliding column is slid down and the top end of the linkage plates are received in the grooves, the two pins are further away from each other than when in the first position to elastically expand the sealing ring, the knockout plate being slid relative the bracket to install the sealing ring on the electronic device.2. The installation fixture of claim 1 , wherein the bracket defines two limiting holes claim 1 , each linkage plate defines two pivot holes claim 1 , a pivot shaft is inserted into the pivot holes and the limiting holes to rotatably install the linkage plate on the bracket.3. The installation fixture of claim 2 , wherein the each linkage plate defines a blind ...

METHOD FOR PERFORMING ALARM GROUPING CONTROL OF AN ELECTRONIC DEVICE WITH AID OF AT LEAST ONE GROUPING CONTROL STRATEGY, AND ASSOCIATED APPARATUS

A method for performing alarm grouping control of an electronic device and an associated apparatus are provided, where the method includes the steps of: shifting the execution timing of at least one alarm of a plurality of alarms to group the plurality of alarms into at least one grouped alarm according to at least one grouping control strategy, wherein the execution timing of the at least one alarm is shifted to the execution timing of the at least one grouped alarm; and according to the at least one grouped alarm, controlling whether to wake up at least a portion of the electronic device. 1. A method for performing alarm grouping control of an electronic device , the method being applied to the electronic device , the method comprising the steps of:shifting an execution timing of at least one alarm of a plurality of alarms to group the plurality of alarms into at least one grouped alarm according to at least one grouping control strategy, wherein the execution timing of the at least one alarm is shifted to an execution timing of the at least one grouped alarm; andaccording to the at least one grouped alarm, controlling whether to wake up at least a portion of the electronic device.2. The method of claim 1 , wherein the at least one grouping control strategy comprises a self-learning strategy; and the method further comprises:performing a learning operation by analyzing an application activity of an application to categorize the application into one of a plurality of categories; anddetermining whether to shift an execution timing of an alarm registered by the application according to the category into which the application is categorized.3. The method of claim 2 , wherein at least two of the plurality of categories correspond to different alarm usage levels claim 2 , respectively.4. The method of claim 3 , wherein a specific application is categorized into a category corresponding to a minimum alarm usage level within the alarm usage levels; and the method further ...

SCREW RELEASING DEVICE WITH GUIDING FUNCTION

A screw releasing device with a guiding function includes a first housing, a control mechanism, and a guiding hole, the first housing defines a first receiving groove, the control mechanism is received in the first receiving groove, and includes a first cam, a second cam, and a third cam, the third cam includes a serrated member, the guiding hole receives a number of screws, and defines a first opening, when the first cam is not driven, the serrated member extends to the guiding hole via the first opening, so that the serrated member is at a supporting location and supports a bottommost screw, when the first cam is driven, the first cam drives the third cam to be not limited by the second cam and rotate, thus the serrated member is rotated to release the bottommost screw. 1. A screw releasing device with a guiding function comprising:a first housing defining a first receiving groove; anda control mechanism received in the first receiving groove, and comprising a first cam, a second cam, and a third cam comprising a serrated member, the first cam and the third cam limited by the second cam, wherein the first cam is configured to pass through the second cam, and a portion of the first cam extends out from the first housing and a side of the second cam;the first housing defining a guiding hole from a top to a bottom of the first housing, wherein the guiding hole receives a plurality of screws and has a sidewall defining a first opening configured to align with the serrated member;wherein, when the first cam is not driven, the serrated member extends to the guiding hole via the first opening, so that the serrated member is at a supporting location and supports a bottommost screw, and when the first cam of the control mechanism is driven in response to an external force, the first cam drives the third cam, so that the third cam is not limited by the second cam and rotates relative to the second cam, whereby the serrated member of the third cam is rotated to release the ...

Fastening device and fastening method

A device with a processing unit and a storage device also has a base, a cover including a plurality of guiding holes, a plurality of receiving members, an installation member, a plurality of first sensing devices, and a plurality of second sensing devices. The processing unit determines by a specific one of the first sensing devices corresponding to a specific one of the receiving members that the installation member is to acquire a fastening element from the specific receiving member. Then, the processing unit determines by a specific one of the second sensing devices corresponding to a specific one of the guiding holes that the installation member is to move towards the specific guiding hole. The processing unit controls the installation member to fasten the fastening element to an electronic device through the specific guiding hole when the specific first sensing device corresponds to the specific second sensing device.

ROLLER ASSEMBLY

A roller assembly includes a workbench, a roller module located above the workbench, and a locking assembly coupled to the roller module and configured to position the roller module above the workbench. The roller module includes a driving device and a pressure roller. The driving device is coupled to the pressure roller through a crank assembly. The crank assembly drives the pressure roller to move along a track to roll on a work-piece positioned on the workbench. 1. A roller assembly comprising:a workbench;a roller module located above the workbench; anda locking assembly coupled to the roller module and configured to position the roller module above the workbench;wherein the roller module comprises a driving device and a pressure roller;wherein the driving device is coupled to the pressure roller through a crank assembly; andwherein the crank assembly drives the pressure roller to move along a track to roll on a work-piece positioned on the workbench.2. The roller assembly of claim 1 , wherein the workbench comprises a platform and a pair of support frames; the platform holds the work-piece in place; the pair of support frames is erected on opposite sides of the platform; a top of each of the support frames comprises a sliding board; the locking assembly is located on the sliding boards to allow the sliding boards to move and adjust a position of the roller module above the workbench.3. The roller assembly of claim 2 , wherein the sliding board defines a sliding groove; the sliding groove receives a sliding seat of the locking assembly; the sliding seat comprises a linking assembly; the linking assembly comprises a fixing bar and a handle; the fixing bar is coupled to the roller module; the handle drives the fixing bar to move the roller module along the pair of support frames and lock a position of the roller module.4. The roller assembly of claim 1 , wherein the roller module comprises a first guide board and a second guide board; the first guide board and the ...

Method for performing alarm grouping control of an electronic device with aid of at least one grouping control strategy, and associated apparatus

A method for performing alarm grouping control of an electronic device and an associated apparatus are provided, where the method includes the steps of: shifting the execution timing of at least one alarm of a plurality of alarms to group the plurality of alarms into at least one grouped alarm according to at least one grouping control strategy, wherein the execution timing of the at least one alarm is shifted to the execution timing of the at least one grouped alarm; and according to the at least one grouped alarm, controlling whether to wake up at least a portion of the electronic device.

Hydrolytic Cellulose Systems and Methods

Surface treating method for titanium artificial implant

Querying big data by accessing small data

A processor executes instructions stored in non-transitory memory to determine whether a query to big data is bounded evaluable, or may be rewritten to access a bounded amount of data or information in a dataset. A query plan may retrieve the information by using indices in access constraints of the query. The cost associated with obtaining the information by using the query plan may be dependent on the query and access constraints and not the size of the dataset. A query plan to obtain the information may be formed for different types or classes of queries, such as conjunctive queries (CQ), unions of conjunctive queries (UCQ) and positive existential FO (first order) conjunctive queries (ƎFO + ). When a query is not bounded evaluable, a determination is made whether an approximation to the information may be retrieved. An approximation may be obtained by using upper and lower envelopes or specialized queries.

訊號編碼器模擬方法

一種訊號編碼器模擬方法，主要係包含訊號擷取單元(R esolver signal acquisition)、編碼器模擬控制器(Encoder simnlation controller)、數控振盪器(Digitally controller Occillator)、二進制垂直方波產生器(Binary quadrature pulse generator)、零序脈波產生器(Zero-index pulse generating)、垂直脈波計數及產生器(Quadartuie pulse counting&amp;generating)及對稱方波驅動器(Line driver)。其中，該訊號擷取單元係供擷取伺服馬達等元件之sin及cos訊號，轉換為速度及角度訊號，由編碼器模擬控制器產生矯正頻率，再由數控振盪器產生數位訊號，並由二進制垂直方波產生器產生二進制垂直方波，俾由對稱方波驅動器輸出永遠保持90°之脈沖訊號及0訊號，以利於馬達動子方位之偵測。

A cup and cup cover thereof

動的進化率及び適応グリッドに基づくｂｅｓｏトポロジー最適化方法

【課題】動的進化率及び適応グリッドに基づくＢＥＳＯトポロジー最適化方法を提供する。【解決手段】最適化対象の基本構造について有限要素モデルを作成し、設計ドメイン、負荷、境界条件及びグリッドサイズを定義すること、制約値及びＢＥＳＯに必要なパラメータを決定し、グリッドが分割された構造について有限要素解析を行い、目的関数と制約条件でのユニット感度を算出すること、ユニット感度をフィルタリングし、制約のラグランジュの未定乗数を更新し、ラグランジュ関数の感度を構築すること、現在の反復ステップの体積率に従って、Ｌｏｇｉｓｔｉｃ関数の動的進化率関数に基づいて、現在の反復ステップの進化率を決定すること及び設定された制約関数に基づいて設計変数を更新し、制約条件と収束条件を満たしているか否かを判定し、満足していない場合、グリッドを適応的に更新し、ユニット更新を行って、条件を満足すると、反復を停止することを含む。【選択図】図１

電源插頭的殼體結構

Black matte polyimide film

Provide a black matte polyimide film, including polyimide in an amount from 87 to 97 wt % of the black matte polyimide film, in which aromatic dianhydride and aromatic diamine are polymerized to form a polyimide precursor, and the polyimide precursor is chemically cyclized to form the polyimide, wherein the aromatic dianhydride at least includes 3,3′,4,4′-biphenyltetracarboxylic dianhydride in an amount being no less than 20 mol % of the aromatic dianhydride, and the aromatic diamine at least includes p-phenylenediamine in an amount from 5 to 40 mol % of the aromatic diamine; carbon black in an amount from 2 to 8 wt % of the black matte polyimide film; and silicon dioxide powder having a particle size between 1 and 10 μm and a density less than 1 g/cm 3 and being in an amount from 1 to 5 wt % of the polyimide film.

連続体トポロジー最適化結果を棒システム構造に変換する方法

【課題】連続体トポロジー最適化結果を棒システム構造に変換する方法、システム及び計算機器を提供する。【解決手段】方法は、ＳＩＭＰ密度補間モデルを用いてトポロジー最適化を行うこと、トポロジー最適化結果を２値化処理して、トポロジー２値画像を得ること、トポロジー２値画像に対して境界拡張を行い、ｅ－８隣接領域検出モデルを構築し、骨格抽出アルゴリズムを用いてトポロジー骨格図を抽出すること、第一の制約準則を設置すること、骨格ノード判定モデルに基づいてトポロジー骨格図の骨格ノードセルに対して抽出を行い、骨格ノード図を得ること、合併準則を設置し近い骨格ノードを合併すること、第二の制約準則を設置すること及び任意の二つの骨格ノードの間に、線形補間を用いて棒材を生成し、ｅ－８隣接領域検出モデルに基づき、棒材経路上の８隣接領域のセル値情況を検出し、棒材を識別して保留し、最終的に棒システム構造を生成することを含む。【選択図】図１

Drink cup and cup cover

可換式插頭的電源適配器結構

永磁馬達軸心磁鐵固定裝置

一種永磁馬達軸心磁鐵固定裝置，主要係包含軸心本體、包覆片及複數之磁鐵、複數之定位片。其中，該軸心本體係於周緣設有間隔排列之嵌槽，該包覆片係設有間隔排列之定位部，於該定位部設有固定孔，該等定位片係分別設有螺孔，使該等定位片嵌置於軸心本體之嵌槽，並將磁體貼附於軸心本體周緣後，將包覆片包覆於磁鐵外緣，藉由螺絲穿設固定孔鎖合於定位片之螺孔，將磁鐵予以固定，使磁鐵不會因高速旋轉而脫落，且因磁鐵被包覆片包覆固定，故磁力不會受到阻礙，進而提高馬達之使用壽命。

兼具旋轉及水平運動之傳動裝置

永磁馬達軸心磁鐵固定結構

單向限位裝置

角度擷取及訊號濾波之方法

一種角度擷取及訊號濾波之方法，主要係包含訊號擷取單元(R esolver signal acquisition)、偏差矯正器(Deviation correction)、觀察器(R esolver Observer)、追蹤濾波器(Tracking filter)、三角函數信號產生器(Function generator)及積分器(Integrator)。其中，該訊號擷取單元係供擷取伺服馬達等元件之sin及cos訊號，於偏差矯正器產生偏差信號，再於觀察器產生轉角速度信號，俾於追蹤濾波器形成模擬之角度，經由三角函數信號產生器產生□及□訊號，並回饋至偏差矯正器與□及□訊號比較，從而於積分器輸出多圈信號(Muti-turn angle)，以利於工具機或自動化機器之校正及測試，進而提高其精準度及速度。

Screw releasing device with guiding function

A screw releasing device with a guiding function includes a first housing, a control mechanism, and a guiding hole, the first housing defines a first receiving groove, the control mechanism is received in the first receiving groove, and includes a first cam, a second cam, and a third cam, the third cam includes a serrated member, the guiding hole receives a number of screws, and defines a first opening, when the first cam is not driven, the serrated member extends to the guiding hole via the first opening, so that the serrated member is at a supporting location and supports a bottommost screw, when the first cam is driven, the first cam drives the third cam to be not limited by the second cam and rotate, thus the serrated member is rotated to release the bottommost screw.