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27results about How to "Reduce external distractions" patented technology
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Wireless communication and computing resource collaborative optimization method and system
ActiveCN119512766AHigh forward-lookingImprove efficiencyResource allocationEnsemble learningResource utilizationDistributed services
The invention provides a wireless communication and computing resource collaborative optimization method and system. The method provided by the invention comprises the following steps: establishing an initialized global model matched with a business demand for each service provider, and matching service resources of each service provider according to the business demand; establishing a service agent corresponding to each service provider; each service agent generates an optimal strategy based on the corresponding service resources and the state information of other service providers; sending the initialized global model to a distribution client according to an optimal strategy; each distribution client trains the received to-be-trained model based on the distributed service resources, and sends the trained model to the corresponding service provider; and aggregating the received trained models by each service agent to obtain a global model of the corresponding service. The method and the system provided by the invention are used for realizing collaborative optimization of wireless communication and computing resources and improving the overall performance and the resource utilization efficiency of federated learning.
Owner:ZHEJIANG NORMAL UNIV
Double-air-gap high-precision high-range current sensor
PendingCN119667274AHighly integratedReduce measurement errorVoltage/current isolationMeasurement using digital techniquesCurrent sensorElectric current flow
The invention relates to the technical field of current sensors, in particular to a double-air-gap high-precision high-range current sensor which comprises two Hall chips and an MCU controller, the two Hall chips are used for outputting magnetic field signals into two paths of electric signals, the MCU controller is used for collecting and processing output signals of the Hall chips, and the MCU controller is used for controlling the Hall chips to output the output signals. Averaging the output signals of the two paths of Hall chips; and by adopting the design of averaging output of the two Hall chips, the accuracy and the stability of measurement can be improved. By averaging the output signals of the two Hall chips, measurement errors caused by factors such as errors and temperature drift of the chips can be reduced; the double-air-gap high-precision high-range current sensor provided by the invention can maintain good performance when being influenced by external temperature and humidity, and solves the technical problem that the accuracy and stability of a double-air-gap current sensor in the prior art become poor due to the fact that the double-air-gap current sensor is easily influenced by external temperature and humidity.
Owner:WUHAN SHENGSHI QICHUANG TECH CO LTD
High-voltage reactor direct-current resistance measuring device integrated with shielding device
PendingCN119574977Aimprove accuracyImprove reliabilityResistance/reactance/impedenceInstrument screening arrangementsDc currentHemt circuits
The invention discloses a high-voltage reactor direct-current resistance measuring device integrated with a shielding device, and relates to the technical field of reactor direct-current resistance measurement. Comprising a shielding device and a measuring device. The measuring device comprises a direct current generator, a bypass resistor and a multi-order LC filter which are electrically connected with the high-voltage reactor, a current and voltage measuring circuit which is electrically connected with the bypass resistor and the multi-order LC filter, and an MCU control circuit which is electrically connected with the current and voltage measuring circuit. The shielding device is of a cover body structure and comprises internal insulating layers which are arranged layer by layer from outside to inside; the high-conductivity metal layer, the middle insulating layer, the high-permeability magnetic shielding layer and the internal insulating layer are detachably connected with the high-voltage reactor; the shielding device covers the measuring device and the high-voltage reactor, so that the measuring device and the high-voltage reactor are in a sealed state. The device can effectively suppress induced electric interference and reduce the influence of alternating current components on a measurement result, so that the accuracy and reliability of direct current resistance data are ensured.
Owner:QUJING POWER SUPPLY BUREAU YUNNAN POWER GRID CO LTD
Dual wire feed integrated assembly automated system and method of assembly
ActiveCN121199652BImprove circulation efficiencyhigh degree of automationAssembly machinesTotal factory controlControl engineeringMachine
The application provides an automatic system and an assembling method of double-line supply integrated assembly, which comprises a first supply line and a second supply line, the first supply line and the second supply line are collected to a positioning assembly output line through a robot taking materials, the first supply line comprises a multi-axis running feeding machine and a secondary positioning platform in sequence, the second supply line comprises a flying feeder, an adsorption material taking device, a clamping material taking device, a point laser height measuring instrument and an upper visual positioning scanning module are arranged on an execution end of the robot, the positioning assembly output line comprises a lower visual positioning module and a product circulation mechanism in sequence, a positioning installation station is arranged on the product circulation mechanism, a material positioning module and a material blocking module are arranged at the positioning installation station, and the execution end of the robot is matched with the flying feeder, the secondary positioning platform, the lower visual positioning module and the positioning installation station in sequence. Through the double-line supply cooperation, multi-stage visual positioning and full-process automation design, the efficiency bottleneck and the precision problem in the assembly of special-shaped parts are effectively solved.
Owner:SHENZHEN HUAHAIDA TECH
Sound box capable of realizing intelligent control with light effect
ActiveCN222638642Ueasy to controlImprove environmental adaptabilityEnergy saving control techniquesTransducer casings/cabinets/supportsReal-time dataAcoustics
The utility model relates to the field of sound box equipment, in particular to a sound box capable of realizing intelligent control with a light effect, which comprises a CPU (central processing unit) controller, a sound box power amplifier unit, a light illumination unit, a photoresistor control circuit and a mobile human body pyroelectric infrared sensor control circuit, the sound box power amplifier unit, the light illumination unit, the photoresistor control circuit and the mobile human body pyroelectric infrared sensor control circuit are all matched with the CPU controller, and the sound box can intelligently respond to environmental changes and human body movement signals through the core function of the CPU controller. The photoresistor control circuit and the mobile human body pyroelectric infrared sensor control circuit provide real-time data for the CPU controller, so that the CPU controller can accurately control the sound box power amplifier unit and the light illumination unit, and more intelligent use experience is provided for users.
Owner:GUANGZHOU ONASEN ELECTRONICS CO LTD
Dual-winding motor steer-by-wire actuator, system, and angle detection method
The application relates to the technical field of intelligent automobiles, in particular to a double-winding motor steer-by-wire steering actuator, a system and an angle detection method, wherein the steering actuator comprises a connecting mechanism, a steering mechanism for transmitting a steering torque to the connecting mechanism to drive a wheel to steer, wherein no detection component is arranged on the steering mechanism, the detection component is used for detecting a steering angle of the vehicle, a speed reduction mechanism for transmitting the steering torque to the steering mechanism, and a double-winding motor for outputting the steering torque, wherein the steering mechanism comprises a first angle sensor and a second angle sensor, and the steering angle of the vehicle is calculated according to the rotor angle detected by the first angle sensor and / or the second angle sensor. Thus, the problems in the prior art that the steering actuator of the steer-by-wire system occupies a large space, has a large volume and a high cost, has a low fault tolerance rate, and cannot be processed according to the fault type after the steering angle fails, so that the vehicle driving safety cannot be ensured are solved.
Owner:TSINGHUA UNIVERSITY
Coal mine tunnel geological exploration device
ActiveCN224067009Uguaranteed collectionreduce external distractionsMagnetic/electric field screeningElectric/magnetic detectionMobile vehicleMining engineering
The utility model discloses a coal mine tunnel geological exploration device which comprises a mobile vehicle body, a coal mine tunnel inner cavity electromagnetic exploration unit and an outer shielding shell, in the using process of the coal mine tunnel geological exploration device, a horizontal probe is installed in a horizontal transmitting tube, and the horizontal transmitting tube can effectively reduce external interference before signals are released; the horizontal probes which are annularly and uniformly distributed effectively transmit signals, and in order to reduce interference of external metal objects in the horizontal direction, the magnetic detection module installed on the surface of the horizontal transmitting tube can detect the metal objects in the surrounding area, so that the influence of the metal objects in the surveying area on surveying data in the horizontal direction is effectively reduced; due to the fact that the included angles formed by the first launcher, the second launcher and the third launcher change, the signal launching position interval is increased, the position and the water yield property of the geological anomalous body in front can be effectively deduced through multi-angle observation, the problem that the signal position is single in the surveying process is solved, and roadway geological surveying data collection is further guaranteed.
Owner:SHAWAN BAOYING COAL CO LTD
A method for precisely controlling thickness difference of float glass
PendingCN122586327Astable temperature environmentreduce external distractions
The present application relates to the technical field of float glass preparation, and specifically discloses a method for precisely controlling the thickness difference of float glass, comprising the following steps: S10, constructing a multi-layer composite heat preservation structure outside the water tank in the high-temperature zone of the tin tank of a float glass production line; S20, collecting the process parameters of the tin tank in real time, including the temperature field distribution, pressure parameters and the geometric parameters of the glass ribbon; S30, processing the process parameters using a field-adaptive deep learning algorithm to generate a control signal for the edge puller; S40, adjusting the angle, speed, strength and position parameters of the edge puller according to the control signal; S50, repeating steps S20 to S40 to form a closed-loop control cycle, and when the thickness difference of the glass is stabilized within the required range, entering a maintenance mode to reduce the calculation load. A stable temperature environment is provided by the heat preservation structure, the algorithm fully learns the special rules of glass forming, the glass process characteristics are deeply integrated into the control system design, and the precise control of the thickness difference is achieved.
Owner:耀华(宜宾)玻璃有限公司
High-voltage cable electrified combustion device and system
PendingCN119574783Areduce external distractionsHigh control precisionTesting dielectric strengthChemical analysis using combustionCombustible gasVoltage source
The invention discloses a high-voltage cable live-line combustion device and system, and belongs to the technical field of cable combustion tests.The high-voltage cable live-line combustion device comprises a shell internally provided with a containing cavity; the fixing frame is arranged in the shell, and the fixing frame is used for fixing a cable; the electric arc generator is arranged in the shell, the electric arc generator is used for generating an electric arc, and the electric arc is used for igniting the skin of the cable. Combustible gas ignition is replaced by arc generator ignition, so that external interference is reduced; by arranging the voltage source, the current source and the variable resistor, the fault condition of the cable is simulated more truly, the influence of voltage and current in the cable combustion process is reflected, and the control precision is higher.
Owner:ELECTRIC POWER RES INST OF GUANGXI POWER GRID CO LTD
A performance testing device, testing method and system for a steel frame
ActiveCN119268998Breduce external distractionsreduce distractionsAnalysing solids using sonic/ultrasonic/infrasonic wavesSubsonic/sonic/ultrasonic wave measurement
The present invention relates to the technical field of vibration testing of structural components, and specifically to a performance testing device, testing method and system for a steel frame. The present invention first obtains all vibration signal components of the vibration signal of each measuring point of the bridge steel frame under each external excitation, and all vibration peaks therein; then clusters the vibration peaks in each vibration signal component, obtains the periodic index of the vibration peak in each cluster, and divides each vibration signal component to obtain all component sub-segments, and then obtains the representative coefficient of each vibration signal component, and then screens out the vibration characteristic components of the vibration signal of each external excitation at each measuring point, so as to facilitate the final evaluation of the performance of the bridge steel frame. Based on the characteristic that the vibration signal under external excitation has periodic vibration characteristics, the present invention analyzes and screens out the corresponding vibration characteristic components, reduces the interference of other random vibration factors such as the environment or traffic, and accurately evaluates the performance of the bridge steel frame.
Owner:JINING SANLIAN STEEL STRUCTURE CO LTD
An electroencephalogram signal processing method and device based on a non-invasive brain-computer interface
This invention provides a method and apparatus for processing electroencephalogram (EEG) signals based on a non-invasive brain-computer interface, belonging to the field of medical device technology. Specifically, it includes: determining an identification and processing scheme for the EEG signal staging model of the target based on the variation of amplitude data of the electrodes of the target, combined with the risk of variation of the amplitude data of the target's electrodes and the similarity to other targets, as well as signal-stable electrodes; determining the interference risk type and location of the target based on the deviation data of the EEG signal staging results between different identification and processing schemes; and determining the processing method for the EEG signal at the location of the interfering electrode based on the similarity of the identification and processing schemes with identification deviations in each target, and the interference risk type of the target. This improves the accuracy of sleep staging results.
Owner:松研科技(杭州)有限公司
Injection oil cylinder for injection molding machine
The utility model discloses an injection oil cylinder for an injection molding machine, which comprises an oil cylinder and a piston rod, and the piston rod can extend into the oil cylinder and can move along the central axis of the piston rod in the oil cylinder; end covers are arranged at the two axial ends of the oil cylinder, so that a sealed oil cavity is formed in the oil cylinder; any end cover is connected with a displacement sensor, and the displacement sensor comprises a sensor connecting rod capable of extending into the oil cylinder; moreover, a position magnetic block capable of being matched with the sensor connecting rod is arranged at the end, close to the sensor connecting rod, of the piston rod, the position magnetic block and the piston rod move synchronously, and the displacement sensor outputs displacement signals of the piston rod by detecting magnetic field changes caused by movement of the position magnetic block. According to the utility model, the displacement sensor is directly integrated on the end cover of the injection oil cylinder, the structure is compact, the size of the whole device is reduced, and the installation space is saved; the device is compact in structure, high in measurement precision, strong in anti-interference capability and convenient to install and maintain.
Owner:FUQIANGXIN (NINGBO) PRECISION TECH CO LTD
Double-cell vehicle-mounted yield measuring system
PendingCN119492860Areduce external distractionsReduce cumbersome stepsMeasurement apparatus componentsTesting foodIn vehicleAgricultural engineering
The invention provides a vehicle-mounted yield measuring system for double cells. The double-cell vehicle-mounted yield measurement system comprises a mounting frame, a sliding seat which is movably arranged at the bottom of the mounting frame and can be horizontally pulled and moved, and a yield measurement module which is fixed on the sliding seat and is used for testing seeds, the two grain feeding funnels are respectively fixed at the top of the mounting frame and are used for guiding harvested seeds to enter the yield measuring module; and the two grain discharging funnels are fixed at the bottom of the mounting frame and are used for discharging the measured seeds from the yield measuring module. According to the invention, a continuous yield measurement mode of double grain collection bins is adopted, so that the harvester can harvest in the next area without waiting, the yield measurement time is greatly shortened, and the overall efficiency and data quality of a breeding test are improved.
Owner:QINGDAO PLANTEC MASCH TECH CO LTD
Portable electrochemical impedance detection auxiliary device and control method
ActiveCN117571782BSimple electrode loading and unloadingSimple human-computer interactionMaterial impedanceMaterial electrochemical variablesTemperature controlElectromagnetic shielding
The application belongs to the technical field of frequency domain measuring devices, and discloses a portable electrochemical impedance detection auxiliary device and a control method, which comprises a shell, the shell has a shielding function, the shell is internally provided with a power supply module, a main control module, a temperature control and electrode chamber module, and an impedance detector connection module, the surface of the shell is provided with a man-machine interaction module and an impedance meter connection terminal, the power supply module is used for supplying power to the whole device, the temperature control and electrode chamber module and the man-machine interaction module are electrically connected with the main control module, the main control module is used for transmitting information with the man-machine interaction module, and the temperature control and electrode chamber module is controlled to perform a constant temperature and variable temperature task at a fixed time. The application optimizes electrode wiring, constant temperature and variable temperature operations into simple electrode loading and unloading and man-machine interaction, and reduces the complexity of operation. The device integrates temperature control, electrode connection, electromagnetic shielding and other functions, and better guarantees the accuracy and stability of impedance measurement signals.
Owner:ZHEJIANG UNIV
Testing device for electromagnetic valve and pneumatic control valve
ActiveCN224176095UOptimize layoutreduce external distractionsMachine valve testingSolenoid valvePower switching
The utility model provides a testing device for an electromagnetic valve and a pneumatic control valve, and belongs to the technical field of valve performance detection. Comprising a bottom plate and a housing, and the housing and the bottom plate are fixedly connected to form a closed structure; a power switch, a power fuse and a counting reset key are arranged at the top of the housing, and a control part extends out of the housing; at least one electromagnetic valve switch is arranged at the upper part of the front of the housing, a pause key, a start key and a time relay are arranged in the middle of the front, and operation interfaces of the keys and the relay are exposed out of the surface of the housing; a power supply and an intermediate relay are fixed at the upper part of a closed space formed by the bottom plate and the housing, a binding post is arranged in the middle, at least one group of electromagnetic valves are mounted at the lower part, and a mouthpiece of each electromagnetic valve extends out of the housing. According to the utility model, through modular design, each solenoid valve can be controlled according to requirements to realize on-off tests and long-time fatigue tests of various pneumatic control valves or solenoid valves, and the problems of low test efficiency and insufficient safety in the prior art are solved.
Owner:SINOL MEDICAL EQUIP GRP CO LTD
Path planning method for UAV power grid inspection operation based on Beidou navigation
ActiveCN119146973Breduce flight riskGuaranteed smoothnessNavigational calculation instrumentsSatellite radio beaconingSimulationPower grid
The present invention relates to the technical field of unmanned aerial vehicle path control, and specifically discloses a path planning method for unmanned aerial vehicle power grid inspection operations based on Beidou navigation. The method comprises: obtaining historical inspection contribution values of various power grid areas, combining actual operation status contribution values of various power grid areas, determining priority values of unmanned aerial vehicle power grid inspection operations of various power grid areas, determining initial paths of unmanned aerial vehicle power grid inspection operations, determining heights of unmanned aerial vehicle power grid inspection operations of various power grid areas, obtaining obstacle position coordinates of connection paths of various power grid areas based on Beidou navigation, determining detour plans for unmanned aerial vehicle power grid inspection operations of connection paths of various power grid areas, and correcting the initial paths of unmanned aerial vehicle power grid inspection operations. The present invention solves the problem that traditional path planning methods can no longer meet the needs of efficient and intelligent inspections, combines the problem of insufficient dynamic optimization capabilities of real-time data, improves the effectiveness of inspections, reduces the flight risks of unmanned aerial vehicles, and ensures the smooth progress of inspection tasks.
Owner:BEIJING HUALIAN POWER ENG SUPERVISION CO +2
Anti-interference Beidou high-precision positioning terminal
ActiveCN224203430UImprove practicalityreduce mistakesMagnetic/electric field screeningSatellite radio beaconingInterference resistanceRadio frequency signal
The utility model relates to the technical field of positioning terminals, and discloses an anti-interference Beidou high-precision positioning terminal, which comprises a positioning terminal main body, and a telescopic antenna is arranged at the upper end of the positioning terminal main body. When the anti-interference Beidou high-precision positioning terminal is used, noise reduction processing is carried out on an original signal through the digital filtering module, in combination with cooperative work of the Beidou positioning module and the radio frequency signal module, it is ensured that positioning data are accurate and reliable, errors are reduced, meanwhile, through the arrangement of the anti-interference assembly, the electromagnetic wave absorption layer absorbs stray electromagnetic waves in the environment, and the positioning accuracy is improved. The high electromagnetic shielding layer obstructs the interference of an external strong electromagnetic field, the anti-falling elastic buffer layer reduces the influence of physical vibration on an internal circuit, and triple protection ensures that signals are pure, so that signal attenuation and external interference in a complex electromagnetic environment can be effectively weakened, the positioning precision is improved, and the practicability of the anti-interference Beidou high-precision positioning terminal is improved.
Owner:SHENZHEN JIAMEISHI TECH CO LTD
Vehicle-mounted clock calibration method and system and automobile
InactiveCN119556548AReduce static power consumptionlow costChanging number of pulses per unit timeMicrocontrollerIn vehicle
The invention discloses a calibration method and system of a vehicle-mounted clock and an automobile, and belongs to the technical field of automobile electronics, and the method comprises the following steps: carrying out frequency division processing on a main crystal oscillator through a microcontroller (MCU); a pulse width modulation (PWM) signal with a specified frequency is sent out through a microcontroller (MCU); measuring, by a frequency meter, a frequency value F1 of a pulse width modulation (PWM) signal of a specified frequency; recording the oscillation frequency N1 of the main crystal oscillator in a first preset time through a microcontroller (MCU); recording the oscillation times N2 of the sub crystal oscillators in a first preset time through a microcontroller (MCU); calculating a frequency value F2 of the sub crystal oscillator in a first preset time through a microcontroller (MCU); the magnitude relation between the frequency value F2 of the sub crystal oscillator and 32768 is judged through a microcontroller (MCU), and the register is configured according to the judgment result. According to the calibration method and system of the vehicle-mounted clock, high-precision calibration can be periodically carried out on the vehicle-mounted clock.
Owner:BOSCH CAR MULTIMEDIA WUHU
Land use planning method and system based on big data analysis
The present invention discloses a land use planning method and system based on big data analysis, which relates to the technical field of land use planning. The area to be planned is divided into several sub-areas, and the sub-areas are divided into undeveloped areas and developed areas according to thermal values, and the corresponding land use status data are predicted and obtained respectively. The protection coefficient is constructed from the land use prediction data in the undeveloped area, and the target area is screened out in several undeveloped areas according to the protection coefficient. After the area to be transferred is screened out in the developed area according to the load coefficient, a transfer plan is formulated to transfer the target facilities from the area to be transferred to the target area; the improvement coefficient is constructed from the plan test data, and the transfer plan is selected as the target plan. According to the target plan, the facilities in the area to be transferred are transferred to the target area in sequence. When carrying out land planning, the load of some areas is reduced, so that the development in each sub-area is more balanced.
Owner:YUNNAN AGRICULTURAL UNIVERSITY
Pneumatic valve aging test device
The utility model discloses an aging test device for a pneumatic valve. The aging test device comprises a mounting bottom plate; the PLC cabinet body is fixedly mounted at the top of the mounting bottom plate; and the semiconductor cooling device comprises a ventilation barrel, a first fan, a semiconductor chilling plate and a copper cooling fin. After the semiconductor refrigeration sheet is started, the refrigeration surface is rapidly cooled, then the first fan is started to exhaust air, and hot air in the PLC cabinet body is sucked from an opening in the ventilation barrel, is cooled by the copper cooling sheet and then is sucked away by the first fan. The blown-out cold air can cool the electrical elements installed on the breathable installation plate through holes in the breathable installation plate, an air channel formed by an exhaust fan and a ventilation opening can enable the cold air to circulate, and at the moment, heat generated by the heating face of the semiconductor chilling plate can be transmitted to heat dissipation fins and cooled through a second fan. By using the above structure, the internal environment of the cabinet body is cooled to prevent overload of electrical components, and the risk of equipment damage is reduced.
Owner:WUXI TRS HEAT EXCHANGER CO LTD
Distribution line branch fault point positioning method
PendingCN121955608AEasy to implementImprove practicalityFault locationInformation technology support systemFault toleranceTopological graph
The invention provides a distribution line branch fault point positioning method, and the method comprises the steps: installing traveling wave positioning terminals of a power distribution network at the two ends of each line in a distributed manner for fault positioning according to the head-end single-end traveling wave fault positioning distance measurement; a traveling wave positioning terminal of a power distribution network at the head end is used for single-end traveling wave fault positioning and double-end traveling wave fault positioning, other terminal devices are used for double-end traveling wave fault positioning, during positioning, a plurality of fault points are determined according to a distance measurement result and a topological graph model, and then fault point positions are determined according to the plurality of fault points and a distributed traveling wave positioning device. Comprehensively judging a fault point of the branch line, and finally checking the fault point; the method is small in external interference, high in error-tolerant rate, easy to implement, convenient and effective, and has high engineering application value.
Owner:ZHAOAN COUNTY POWER SUPPLY CO OF STATE GRID FUJIAN ELECTRIC POWER CO LTD +1
Host antenna with adjusting structure
ActiveCN224153578URealize telescopic adjustment functionRealize protection and anti-interference functionAntenna supports/mountingsAntenna couplingsStructural engineeringMechanical engineering
Owner:WUHAN LINGDAI TECH CO LTD
An antenna turret
ActiveCN224472677UHighly flexible adjustmentPrecise control of pitch angleAudio power amplifierFrequency mixer
The utility model discloses a kind of antenna rotating frame, including bottom elevator, pitch platform and the antenna rotation mechanism being set in the side surface of pitch platform. Antenna rotation mechanism includes mounting bracket, rotating platform, selector, installation platform, fixing part, waveguide coaxial adapter, directional coupler and standard gain horn antenna. Elevator adjustable height, pitch platform can adjust pitch angle, rotating platform and pitch platform are coaxial rotation by bearing, selector drives installation platform to rotate around its own axis, realize multidimensional adjustment. Fixing part is annular collar, and multiple components adopt coaxial design, and signal transmission stability is ensured by flange, thread etc. Local oscillator amplifier and reference frequency mixer are equipped on the side surface of elevator, power amplifier is equipped on the side surface of pitch platform, realize integrated layout, improve signal transmission efficiency and stability, adapt to multiple scene needs.
Owner:成都华兴汇明科技有限公司
Letter sorting machine control system based on EtherCAT double-link redundancy
PendingCN121857503AEnsure normal communicationAvoid unplanned downtimeProgramme controlComputer controlMachine controlLogistics management
The invention provides a letter sorting machine control system based on EtherCAT double-link redundancy. The letter sorting machine control system comprises a main controller, a redundancy switching unit, a distributed slave station and branch control module, a belt transmission module and a grid display module. The main controller adopts multi-core CPU function isolation, binds different tasks to corresponding cores and allocates execution cycles; the redundancy switching unit constructs a double-link annular redundancy network, automatic switching is achieved when links are abnormal, and communication stability is guaranteed; the distributed slave stations are provided with terminal modules according to needs, are integrated in slave station boxes and are flexibly connected to execution components of all functional areas. And the lattice display module adopts a group leader-group member structure, so that the load of a main network is reduced. The system sets priorities for EtherCAT network groups based on signal real-time performance, realizes IO signal rapid response, and supports flexible expansion of slave station boxes. The reliability, the real-time performance and the expansibility of letter sorting control are improved, the method is suitable for a high-speed sorting scene, and the efficient operation requirement of the postal logistics industry is met.
Owner:CHINA POST SCI & TECH
Three-in-one switch test tool equipment
ActiveCN224263344UImprove controllabilityEliminate efficiency bottlenecks caused by separationEnergy saving control techniquesMeasurement instrument housingStopwatchSound sources
The utility model discloses three-in-one switch test tooling equipment, which comprises a console, a test box and a test assembly, a positioning seat and an ejector pin assembly are arranged in the test box, the test assembly comprises a sound source generator, a light source generator and an infrared generator which are arranged in the test box, and a timer and a load indicating lamp which are arranged outside the test box, the three-in-one switch testing tool equipment adopting the technical scheme is provided with a sound source / light source / infrared generator and a timing system, a closed testing box body is constructed, it is ensured that testing conditions are accurate and controllable, external interference is reduced, the testing requirements of infrared switches, acousto-optic switches and light touch delay switches can be met, and the testing efficiency is improved. The efficiency bottleneck caused by discrete special equipment in the traditional test is eliminated, the test platform is unified, the test efficiency is improved, the test cost is reduced, human errors are reduced, and the product quality is improved.
Owner:ZHEJIANG DELIXI ELECTRIC APPLIANCE
Multi-axis motor position synchronization control method and device based on model reference control
The application provides a multi-axis motor position synchronization control method and device based on model reference control. The method comprises the following steps: providing a unified main position instruction signal to a position loop reference model and a servo control system corresponding to a servo control axis to be synchronized, and generating a reference position trajectory; for any servo control axis of a plurality of servo control axes that need to be synchronized, the following position synchronization compensation control is performed: the current actual position of the servo control axis is acquired in real time, and the position synchronization deviation of the current actual position and the reference position trajectory is calculated; the position synchronization deviation is input into a position synchronization deviation compensator to calculate a speed compensation value and a torque compensation value; and the position of the servo control axis is compensated based on the speed compensation value and the torque compensation value. The application improves the synchronization accuracy of the multi-axis servo system based on the model reference control and the dynamic deviation compensation mechanism, reduces the dependence on communication by running the synchronization algorithm inside the driver, can compensate the position synchronization deviation more quickly, and improves the real-time performance and system stability.
Owner:SHANGHAI RUJING AUTOMATIC CONTROL SYST CO LTD
Emergency work design method for active array equipment in cooling fault state
PendingCN119560805AImprove maintainabilityImprove reliabilityAntenna arraysMeasurement devicesTesting MethodsActive antenna
The invention provides an emergency work design method for active array equipment in a cooling fault state, and the method comprises the steps: delaying the cutting of a power supply of an active part of an antenna array, or forcibly turning on the power supply to supply power to the active part of the antenna array when the equipment cannot work under the conventional processing flow of the cooling fault state of the active antenna array; the working states (temperature, current and the like) of all functional units and all receiving and transmitting channels in the active antenna array are monitored in real time, the effective working time of equipment is prolonged as much as possible while the equipment is prevented from being damaged according to internally set threshold values, and the emergency working requirements of the equipment in wars or disasters are met.
Owner:THE 724TH RESEARCH INSTITUTE OF CHINA STATE SHIPBUILDING CORP LTD