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70results about How to "With data storage function" patented technology
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Message pushing method and device, computer equipment and storage medium
ActiveCN110300050AAvoid lossWith data storage functionData switching networksMessage queueComputer hardware
The invention discloses a message pushing method and device, computer equipment and a storage medium, and the method comprises the steps: receiving a connection request sent by a client through a preset message queue with a data storage function, and building a long connection between the client and a pushing server; acquiring attribute information of the client and the push server, and storing the attribute information in a preset message queue; determining a target client for message pushing from the pushing request sent by the third-party message providing platform; selecting a target pushserver for executing message push from a preset message queue according to identification information contained in the attribute information of the target client; and notifying the target push serverto send the push message to the target client through a preset message queue according to the identification information of the target push server. According to the method and the device, the problemthat pushed messages are lost when high concurrency occurs in data interaction under the condition that the number of the servers is kept unchanged is solved.
Owner:CHINA PING AN LIFE INSURANCE CO LTD
Method and system for intelligently identifying and reading immunity-chromatography test strip and application thereof
InactiveCN101769925AGuaranteed accuracyHigh degree of intelligenceMaterial analysis by optical meansColor measuring using electric radiation detectorsConvertersMedicine
Owner:GUANGZHOU WONDFO BIOTECH
Online monitoring system for tilt and wobble of wind power tower barrel
ActiveCN109596175AWith data storage functionWith data transmission functionMeasurement devicesElectricityMonitoring system
The invention relates to an online monitoring system for tilt and wobble of a wind power tower barrel. The system comprises a processor, a display, a collector, a tilt angle sensor located at a towerbase, at least one tilt angle sensor located at the tower barrel, a tilt angle sensor located at a tower cabin and at least one acceleration sensor located at the tower cabin; the tilt angle sensors and the acceleration sensors are connected with the collector through cables; the collector is used for collecting angle data of all the tilt angle sensors and acceleration data of all the accelerationsensors, and sending the data to the processor; and the processor is used for calculating out a real-time eigenvalue according to the angle data and the acceleration data, storing the real-time eigenvalue in a memory, giving an alarm and when the real-time eigenvalue is larger than or equal to a corresponding threshold value, and realizing an early warning function by a weighted average model.
Owner:深圳前海慧联科技发展有限公司
Integrated charging and acquisition terminal
ActiveCN102426724AWith automatic switching rateWith data storage functionApparatus for hiring articlesMicrocontrollerDisplay device
The invention relates to an integrated charging and acquisition terminal, belonging to an electronic device for charging and data acquisition of an intelligent electric meter. The integrated charging and acquisition terminal mainly comprises a display unit, an IC (integrated circuit) card interface circuit, an encryption and authentication interface circuit, an RS485 interface circuit and a powercarrier circuit which are connected with a single chip microcomputer, wherein the IC card interface circuit and the encryption and authentication interface circuit are formed by adopting an electrostatic protection chip ESDA6V1-5W6 and an ESAM (embedded secure access module) chip; the RS485 interface chip in the RS485 interface circuit is connected with the single chip microcomputer by two optical coupling circuits; a thermistor, a piezoresistor and another thermistor are connected between an A end and a B end of the RS485 interface chip in sequence and in series; and the A end and the B end are respectively connected with a two-way transient diode and then are grounded; and the power carrier circuit mainly comprises a three-phase carrier module. The integrated charging and acquisition terminal integrates an IC card interface, a power carrier interface and an RS485 interface and has the characteristics of convenience in charging, electricity utilization inquiry and data forwarding fora user and the like.
Owner:STATE GRID SICHUAN ELECTRIC POWER CORP ELECTRIC POWER RES INST +1
Converter debugging system and manipulator
InactiveCN103336203AEasy to operate and debugWith data storage functionElectrical testingCommunication unitExecution unit
The invention provides a converter debugging system which comprises a manipulator, a debugging bus and a plurality of converters, wherein the manipulator and the converters are respectively connected to the debugging bus; the manipulator comprises a state inquiring unit, a parameter setting unit and a first communication unit, wherein each converter comprises a second communication unit and a command execution unit; the state inquiry unit is used for creating an inquiry command and outputting state data returned by a corresponding converter; the parameter setting unit is used for creating a parameter setting command; the first communication unit and the second communication unit are used for achieving communication between the manipulator and the corresponding converter through a debugging bus; the command execution unit is used for generating state data according to a state inquiry command and setting parameters according to the parameter setting command. The invention further discloses a corresponding manipulator. According to the invention, the manipulator is simultaneously connected to the converters through the debugging bus, and debugging to a plurality of inverters can be achieved.
Owner:SUZHOU INOVANCE TECH CO LTD +1
Device and method for controlling micro underwater robot
InactiveCN102029611AReduce volumeReduce weightManipulatorProgramme control in sequence/logic controllersJoystickControl signal
The invention discloses a device and method for controlling a micro underwater robot. The device comprises a control lever, a personal computer (PC) and a mobile hard disk, wherein the control lever is a joystick comprising buttons and a rocker, and is connected with the input end of the PC by a universal serial bus (USB) interface to provide control signals for the PC; the output end of the PC is connected with the micro underwater robot by a control cable and is connected with the mobile hard disk by the USB interface; the PC stores a control program for regularly acquiring, reading and analyzing control quantity data, and the PC is provided with a display for displaying the control quantity data; and the mobile hard disk contains a database for storing the control quantity data of the control lever. The method comprises a method for acquiring the states of the rocker and buttons of the joystick and a data storage method. By using the joystick with the USB interface as the control signal device, the device provided by the invention has the characteristics of small volume, light weight and extremely low power consumption and is low in price, thereby being especially suitable for the practical situation that the self-provided energy of a micro remotely-operated vehicle (ROV) is limited.
Owner:SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI
Calibrating device for SF6 density relay checking instrument
InactiveCN105116363AGuaranteed safe operationEasy maintenanceElectrical measurementsGas cylinderSLATES
The invention discloses a calibrating device for an SF6 density relay checking instrument. The calibrating device comprises a controller, wherein the controller is connected with an industrial slate computer, a temperature sensor and to-be-checked density relay checking equipment, wherein the controller is connected with a signal line interface of the to-be-checked density relay checking equipment; the calibrating device further comprises a gas filling tube communicated with a gas filling port of the to-be-checked density relay checking equipment; a gas cylinder and a proportional valve are connected in series onto the gas filling tube sequentially; a gas pressure fine-adjustment assembly and a pressure sensor are further arranged on the gas filling tube; the gas pressure fine-adjustment assembly, the gas cylinder, the proportional valve and the pressure sensor are connected to the controller through a circuit; the controller is further connected with a storage device and a power supply; the pressure measurement range of the pressure sensor is 0-0.9 MPa; the resolution of the pressure sensor is smaller than or equal to 0.00002 MPa.
Owner:XIAN YA NENG ELECTRIC CO LTD
TEV on-line monitoring system for partial discharge of switch cabinet based on Internet of Things
InactiveCN104777408AImprove detection efficiencySave human effortTesting dielectric strengthSystems managementMonitoring system
The invention discloses a TEV on-line monitoring system for partial discharge of a switch cabinet based on Internet of Things. The TEV on-line monitoring system is characterized by comprising at least one monitoring terminal and an administrative center of the TEV on-line monitoring system, wherein the monitoring terminal performs on-line detection on TEV signals of the partial discharge of the switch cabinet and generates corresponding detection data; the administrative center of the TEV on-line monitoring system is connected with the monitoring terminal through a wireless self-organizing network. The monitoring terminal receives control instructions from the administrative center of the TEV on-line monitoring system through the wireless self-organizing network, and transmits the detection data to the administrative center of the TEV on-line monitoring system according to the instructions, and the administrative center of the TEV on-line monitoring system receives the detection data from the monitoring terminal and analyzes the detection data so as to assess the insulation condition of the switch cabinet.
Owner:STATE GRID CORP OF CHINA +2
Device and method for analyzing fault diagnosis and records of electric vehicle at charging station
ActiveCN106786856ALow costWith fault diagnosis functionElectric signal transmission systemsCharging stationsEngineeringCommunications protocol
The invention discloses a device and a method for analyzing the fault diagnosis and records of electric vehicles at a charging station. Existing monitoring center, charging devices and electric vehicles are utilized, and simultaneously the software function of each electronic control module on the monitoring center, the charging devices and the electric vehicles is added through unified communication protocol specifications, the function can be added but the cost is hardly increased in initial planning, the state messages, such as fault states, charging frequency, charging time and charging electric quantity, of the electric vehicles running on lines can be collected in real time by adding the corresponding function in product software as long as the unified communication protocol specifications are followed, and operating data are collected by monitoring VIN codes of the vehicles and analyzing the operating state of each electric vehicle, so that real time monitoring and optimized dispatching are realized.
Owner:NINGBO JIANGBEI GOFRONT HERONG ELECTRIC
Rapid detection method and device for content of polyphenols in tea extracting solution
ActiveCN107064044AStable signalReduce noiseColor/spectral properties measurementsGreen Tea PolyphenolsRapid detection
The invention provides a rapid detection method and device for content of polyphenols in a tea extracting solution. The content of polyphenols in the tea extracting solution is detected with a conventional physical and chemical analysis method; a transflective detection device is taken as a carrier of a sample, a micro optical fiber device is taken as a transmission carrier of a spectrum signal, and transflective spectroscopic data in the tea extracting solution are collected with a portable near infrared spectrometer; a prediction model of the content of the polyphenols in the tea extracting solution is established by use of the content of the polyphenols in the collected tea extracting solution and spectrum data in combination with a chemical metrology method; spectrum data are transmitted to a computer client in real time through USB transmission; in combination with written model procedures, spectrum data are analyzed at the computer client, and the content of polyphenols in the tea extracting solution is displayed in real time. On the basis of a near infrared spectrum-USB transmission technology, the content of polyphenols in the tea extracting solution can be rapidly and quantitatively detected; compared with conventional physical and chemical detection, the corresponding detection efficiency can be remarkably improved, and the method and the device are more applicable to online detection and analysis in the field of deep processing of tea.
Owner:JIANGSU UNIV
Rapid quantitative monitoring device for environmental parameters of coal mine fire zone
InactiveCN102980613AForecast developmentReal-time samplingRadiation pyrometryMaterial analysisEngineeringCoal
The invention discloses a rapid quantitative monitoring device for environmental parameters of a coal mine fire zone. The device comprises an infrared temperature sensing device, wherein the back part of the infrared temperature sensing device is connected with a rapid drill hole sealing device; the back end of the infrared temperature sensing device is connected with a detecting device; one end of a hose is connected with the back end of a hollow steel pipe, and the other end of the hose is connected with an inlet of an air room in the detecting device; the front fixed end of the rapid drill hole sealing device is connected with the back end of a floral tube which is sleeved outside the hollow steel pipe; an expansion capsule is arranged between the front fixed end and the back fixed end; a bearing, provided with a stationary shaft, is arranged in the fixed end; the stationary shaft is connected with the hollow steel pipe through external threads; and a rotating disk is connected with the hollow steel pipe behind the back fixed end through external threads. The rapid quantitative monitoring device is suitable for monitoring the temperature of an underground fire zone of a coal mine and concentrations of a plurality of index gases, and has the advantages of simple technique, comprehensive gas detection and reliability in parameter monitoring.
Owner:CHINA UNIV OF MINING & TECH
Portable illegal cooking oil detector
InactiveCN103592340APrevent negative impacts in timeAvoid negative effectsMaterial resistanceEngineeringCooking oil
A portable illegal cooking oil detector belongs to the technical field of detection, and especially relates to a portable illegal cooking oil detector for detecting whether foodstuff contains illegal cooling oil. The portable illegal cooking oil detector is capable of performing rapid qualitative detection on illegal cooking oil. The portable illegal cooking oil detector comprises a shell on which a display screen observation window, a button and a probe are arranged, the shell is inside provided with a single-chip microcomputer and a display screen, and the display interface of the display screen is corresponding to the display screen observation window; the input terminal of the display screen is connected with the output terminal of the single-chip microcomputer, the output terminals of the button and the probe are respectively connected with the input terminal of the single-chip microcomputer; and the single-chip microcomputer is connected with a power source.
Owner:SHENYANG JIANZHU UNIVERSITY
Method and device for detecting action time of primary and secondary fused switchgear assembly
PendingCN109613424AEasy to get directlyEasy to viewCircuit interrupters testingKey pressingRemote control
The invention discloses a method and device for detecting the action time of a primary and secondary fused switchgear assembly. The method is executed by a controller, the controller directly sends atripping and closing command to an IGBT driving module to control a control mechanism of a circuit breaker to act, and action trigger is completed by manually triggering a first key; the controller further simulates a tripping and closing instruction of the primary and secondary fused switchgear assembly to communicate with a feeder automation terminal through a first communication module, tripping and closing actions are conducted through the feeder automation terminal and the control mechanism of the circuit breaker, and action trigger is completed by manually triggering a second key; the method is executed by the controller, if it is detected that the first key is pressed down, a first working mode is switched, and the action time of a circuit breaker body is detected; if it is detectedthat the second key is pressed down, a second working mode is switched, and remote control of circuit breaker action time detection is simulated; and after detection is completed, detection data arestored and displayed on a display module, convenience and reliability are achieved, and precision is high.
Owner:STATE GRID HENAN ELECTRIC POWER ELECTRIC POWER SCI RES INST +2
Digital gyro stabilized platform, on-line frequency characteristic soft testing system and method thereof
ActiveCN107607114AThe test method is reliableImprove reliabilityNavigation by speed/acceleration measurementsFunctional testingData acquisition
The invention relates to a digital gyro stabilized platform, an on-line frequency characteristic soft testing system and a method thereof. The digital gyro stabilized platform employs a distributed innovation form by combing an embedded stable loop computer and a high-speed serial bus, and has the advantages of stable platform, small system scale, low power dissipation, and stronger control flexibility and function expansibility. The on-line frequency characteristic soft testing system is composed of the gyro stabilized platform and a test PC machine, the digital stable loop computer in the platform is used for realizing sweep-frequency signal excitation, data acquisition and buffer memory functions, and the test PC machine employs a least square fitting method to calculate the amplitude frequency characteristic and phase-frequency characteristic of the stabilized platform. The soft testing system has no applied auxiliary circuit and power supply, frequency characteristic tests of three stable loops of a platform body, an internal ring, and an external ring can be switched through software, during a switching process, first power-off and second electrification cannot be required for the platform, hardware cost for testing is reduced, and the platform has the advantages of simple and flexible process, and traceable process data.
Owner:BEIJING INST OF AEROSPACE CONTROL DEVICES
Multifunctional telemetering terminal and method for data transmission by using same
InactiveCN105225451AFunction increaseSimple structureProgramme controlTransmission systemsData acquisitionControl data
The invention discloses a multifunctional telemetering terminal and a method for data transmission by using the same. The multifunctional telemetering terminal and the method for data transmission by using the same comprise a data acquisition device, a memorizer, an AC power supply, a display screen, a main control data processor, a GPRS emitter, and a Beidou sending and receiving all-in-one machine; the data acquisition device, the main control data processor, the GPRS emitter, the Beidou sending and receiving all-in-one machine and the display screen are all connected to the AC power supply; the data acquisition device and the main control data processor are connected with the memorizer; the GPRS emitter and the Beidou sending and receiving all-in-one machine are connected to the main control data processor; the GPRS emitter and the Beidou sending and receiving all-in-one machine are connected in parallel; the display screen is connected to the main control data processor. The multifunctional telemetering terminal with the structure has the advantages of diverse functions, simple structure, reliable performance and stable data transmission.
Owner:SHANGHAI HUACE NAVIGATION TECH
Direct-reading X and gamma personal dosimeter
Owner:上海新漫传感科技有限公司
Control method and system of double frequency reader-writer for electronic handover of cash box
InactiveCN108960355AControl wake-up distanceImprove accuracyError prevention/detection by using return channelAutomatic card filesControl systemComputer module
The invention discloses a control method of a double frequency reader-writer for electronic handing over of a cash box. An initialization signal is received, and a control chip initializes ports and different modules; and according to a received server-end instruction, wake-up messages are sent continuously, whether a label waken up message is received is determined, if YES, reception is interrupted, and the received message is processed, and replay information is sent to a corresponding label. The invention also discloses a control system of the double frequency reader-writer for electronic handing over of the cash box. The control system comprises an initialization module, a message transmitting-receiving module and a message processing module. Thus, active electronic labels installed inthe cash box can be read in a batch manner efficiently and stably without omission, and handover of the bank cash box can be really electronic.
Owner:CHENGDU UNIVERSITY OF TECHNOLOGY +1
Intelligent gateway
InactiveCN107911287AEasy to controlImprove securityTransmission systemsNetwork topologiesWireless transceiverShortest distance
The invention discloses an intelligent gateway, which comprises a control device, an intelligent gateway, a controlled device, an Ethernet and an external power supply. The control device and the controlled device both connect to the intelligent gateway through signals, the Ethernet and the external power supply are electrically connected to the intelligent gateway, and the intelligent gateway comprises an encryption module, a data receiving module, a central processor, a wireless transceiver module, a data storage module, an interface module, a power supply module, and a monitoring module. The encryption module is arranged on the intelligent gateway to implement data encryption for data transmission of the Internet of Things and ensure data security; the wireless transceiver module comprises a ZigBee module and a WiFi module, the ZigBee module and the WiFi module are arranged so that the control device can rapidly control the controlled device at a short distance, and the WiFi moduleis arranged to increase the function of the intelligent gateway; and a monitoring module is arranged on the intelligent gateway, so that the real-time state of the controlled device can be detected through the intelligent gateway in combination with a sensor on the controlled device.
Owner:安徽电信器材贸易工业有限责任公司
Automatic monitoring system and method for deep foundation pit groundwater recharge
PendingCN109930656AMeet security requirementsMeet environmental protection requirementsWater resource protectionDrinking water installationGroundwater rechargeMonitoring system
An automatic monitoring system for deep foundation pit groundwater recharge comprises a water level gauge, a sedimentation tank, a flow meter, a flow gauge, a measuring robot and a monitoring center;the water level gauge, the sedimentation tank, the flow meter, the flow gauge and the measuring robot are connected with the monitoring center through a GPRS type Internet of Things intelligent terminal, the monitoring center analyzes collected data based on preset data and controls a groundwater recharge system according to an analysis result. The automatic monitoring system has the beneficial effects that an automatic monitoring device for groundwater recharge of deep foundation pit engineering realizes automatic monitoring on water level, water volume and settlement deformation, saves manpower, reduces cost, and can meet the requirements of construction safety and environmental protection of a deep foundation pit to the greatest extent.
Owner:BEIJING URBAN CONSTR EXPLORATION & SURVEYING DESIGN RES INST
Mechanical vibration state signal acquisition and analysis system
PendingCN113834563ASolve real-timeSolve the technical problems of synchronicitySubsonic/sonic/ultrasonic wave measurementUsing electrical meansVibration accelerationEngineering
The invention provides a mechanical vibration state signal acquisition and analysis system, which comprises an analog conditioning circuit module, an analog-to-digital conversion module, an FPGA function module and a processor function module which are connected in sequence. An input port of the analog conditioning circuit module is connected with an output port of a vibration sensor. The system further comprises a power management module which is used for providing a constant voltage source and / or a constant current source for an eddy current sensor, a piezoelectric acceleration sensor and the power utilization modules. According to the invention, synchronous acquisition of sixteen channels of vibration state signals is realized, primary processing and analysis of data are completed, vibration state signal features are extracted for diagnosis and alarm, and data and feature parameters are uploaded in real time. The system supports the access of an eddy current displacement sensor, a magnetoelectric speed sensor and a piezoelectric acceleration sensor, can collect a vibration displacement signal, a vibration speed signal and a vibration acceleration signal at the same time, and is used for state real-time monitoring, fault diagnosis and life prediction of a rotating mechanical structure.
Owner:SHANDONG UNIV
LPC2132 single-chip microcomputer-based closed henhouse environment control system
InactiveCN105629914AVersatileEasy to operateTotal factory controlProgramme total factory controlLiquid-crystal displayMoisture sensor
The invention discloses an LPC2132 single-chip microcomputer-based closed henhouse environment control system, including a data transceiver and a power module and an RS232 / 485 communication module connected with the data transceiver and used for serial data transmission communication. An input end of the data transceiver is connected with a light intensity sensor circuit, a keyboard input circuit, an H2S sensor circuit, an NH3 sensor circuit, a CO2 sensor circuit and a temperature and humidity sensor module; an output end of the data transceiver is connected with a liquid crystal display circuit, a sound-light alarm circuit used for alarm reminding, an electric ball valve circuit and a wet curtain fan circuit; and the temperature and humidity sensor module includes a temperature and humidity sensor circuit and an I2C bus connected with an output end of the temperature and humidity sensor circuit to be used for transmitting multipath data. The LPC2132 single-chip microcomputer-based closed henhouse environment control system has the advantages that the system is simple in structure, a controller can rapidly respond to an environment change, automatically adjust a solenoid valve switch to control spray and automatically control a wet curtain fan to ventilate and dry environment, and the practicability is strong.
Owner:SHAANXI YATAI ELECTRIC APPLIANCE
Anti-intensive-impact and high-voltage-resistant temperature pressure sensor combined device
InactiveCN104848895AReliable measurementContinuous measurementMeasurement devicesAcousto-opticsRegulated power supply
The invention relates to an anti-intensive-impact and high-voltage-resistant temperature pressure sensor combined device comprising a temperature sensor, a pressure sensor, a temperature-and-pressure-sensor-based DSP detection system, and a direct-current voltage-stabilizing power supply. The temperature-and-pressure-sensor-based DSP detection system includes a box body and a DSP detection unit circuit; and the DSP detection unit circuit is arranged in the box body. The DSP detection circuit consists of a data processing chip, a temperature sensor interface circuit, a pressure sensor interface circuit, a CAN bus communication interface circuit, an acousto-optic alarm circuit and a direct-current power supply module; and the direct-current power supply module is respectively connected with voltage input interfaces of a DSP minimum system, the temperature sensor interface circuit, the pressure sensor interface circuit, the CAN bus communication interface circuit, and the acousto-optic alarm circuit and provides a direct-current power supply for the above-mentioned units. According to the invention, the temperature and pressure that are changed dynamically can be measured with high speeds; the reliability and continuity are high; and the measurement precision is also high.
Owner:SHENYANG LIGONG UNIV
Vehicle-mounted inertial navigation data acquisition system
PendingCN110514223AFlexible structureWide range of applicationsElectric signal transmission systemsNavigation by speed/acceleration measurementsData transmissionData collector
The invention belongs to the field of inertial navigation and relates to a vehicle-mounted inertial navigation data acquisition system. The system comprises a data collector 1, a main inertial navigator 2, a sub inertial navigator 3 and a display computer 4, wherein both the main inertial navigator 2 and the sub inertial navigator 3 transmit data to the data collector 1, and the data collector 1 analyzes the two paths of data, aligns with a time axis, calculates the data in real time to obtain the navigation error information of the sub inertial navigator 3 and the main inertial navigator 2, and outputs all the data to the display computer 4.
Owner:XIAN FLIGHT SELF CONTROL INST OF AVIC
Equipment, method and system for realizing equipment interconnection
ActiveCN100470528CRealize interconnectionRealize data transmissionElectric digital data processingProcess moduleInterconnection
Owner:NETAK TECH KO LTD
Intelligent constant-temperature cold chain box
PendingCN111483706AGuarantee the effect of constant temperature transportationReduce refrigeration costsBatteries circuit arrangementsDomestic cooling apparatusCold chainWireless transmission
The invention provides an intelligent constant-temperature cold chain box. The intelligent constant-temperature cold chain box comprises a box body and a box door, wherein the box door is positioned on the side surface of the box body; the box body is of a groove-shaped structure with a forward opening, and the top surface, the bottom surface and the three side surfaces of the box body at least comprise three temperature layers from outside to inside, namely a vacuum layer, a heat insulation layer and a refrigerant layer; the vacuum layer is made of an insulating material, the heat insulationlayer is made of a radiation-proof material, the refrigerant layer comprises a plurality of refrigerant units, and the refrigerant units are tightly arranged; and notches of the box body and the box door are sealed by soft silica gel sealing strips. The intelligent constant-temperature cold chain box further comprises a coded lock, a monitoring module, an intelligent terminal and a cloud server. The vacuum layer and the heat insulation layer of the box body doubly guarantee the constant-temperature transportation effect of the cold chain box. The chain box is provided with the monitoring module and the intelligent terminal, so that the temperature in the box body can be checked online and remotely, temperature collection, storage and wireless transmission are integrated, and the intelligent constant-temperature cold chain box can be widely applied to refrigerated medicines, food and articles needing constant-temperature transportation.
Owner:SHANGHAI NEW PROD TECH
Induction type electromagnetic leakage detection device and method
InactiveCN102495381AImprove detection accuracySimple structureMagnitude/direction of magnetic fieldsLiquid-crystal displaySignal processing circuits
The invention discloses an induction type electromagnetic leakage detection device and method. The induction type electromagnetic leakage detection device is characterized by comprising an X-axis magnetic field detection circuit, a Y-axis magnetic field detection circuit and a Z-axis magnetic field detection circuit, an MCU (Micro-programmed Control Unit) processing unit and an upper computer, wherein the X-axis magnetic field detection circuit, the Y-axis magnetic field detection circuit and the Z-axis magnetic field detection circuit are respectively and correspondingly connected with input ends of three signal processing units; the output ends of the three signal processing units are connected with the analog input end of an AD (Analog / Digital) converting circuit; the digital output end of the AD converting circuit is connected with the I / O (Input / Output) port of the MCU processing unit; the output end of a power supply circuit is connected with the power supply end of the MCU processing unit; a data storage circuit and a liquid crystal display circuit are respectively connected with the MCU processing unit; and the MCU processing unit is communicated with the upper computer through infrared transmission. The invention provides the induction type electromagnetic leakage detection device and method which are convenient for a tester to judge results, thereby solving the problems that whether the electromagnetic leakage of an electronic product exceeds the standard cannot be judged in real time when the electromagnetic leakage of the electronic product is detected in prior art, and the tester is put into inconvenience.
Owner:HOHAI UNIV CHANGZHOU
Automatic calibration apparatus of fully automatic portable eddy current displacement sensor
PendingCN107543485AImprove calibration efficiencyWith data storage functionUsing electrical meansElectric machineControl engineering
The invention discloses an automatic calibration apparatus of a fully automatic portable eddy current displacement sensor. A case body is provided with an installation bottom plate thereon. The installation bottom plate is fixedly provided thereon with a signal acquiring apparatus, a driver assembly, a 24V power supply and an encoder. An installation panel is provided with an electronic component,a guide rail, and an electric machine controller. The guide rail is fixed to the installation panel. A mobile support is installed in the guide rail to constitute a sliding pair. The mobile support is fixed to a moving platform of the driver assembly. The driver assembly drives the mobile support to conduct horizontal linear movement over the guide rail. According to the invention, the apparatusherein can fast calibrate the eddy current displacement sensor, can display the linearity of the eddy current displacement sensor, and feedbacks the slope K value and the intercept b value of the eddycurrent displacement sensor the first time. The apparatus herein has the characteristics of higher calibration efficiency, compact structure, small size and portability.
Owner:CHINA INST OF WATER RESOURCES & HYDROPOWER RES
Special construction project cost counter
InactiveCN107203486AAvoid scratchesExtended service lifeDigital computer detailsCharacter and pattern recognitionSoftware engineeringLoudspeaker
The invention discloses a special construction project cost counter which structurally comprises a counter body, a loudspeaker, a fingerprint identifier, a storage battery, a flap cover groove, an LED illumination lamp, a display screen, an intelligent data storage key and a computer chip. The fingerprint identifier and the flap cover groove are respectively and fixedly arranged below the left side and the right side of the computer body, the LED illumination lamp and the display screen are arranged at the upper end of the flap cover groove, keys, a clamping ring and a flap cover are arranged on the flap cover groove, the keys are arranged on the key appearance layer, the flap cover groove is mechanically connected with the flap cover through a clamping ring, the loudspeaker and the intelligent data storage key are installed above the left side of the computer body, a data interface is formed in the side end of the computer body and is embedded into the computer body, and the storage battery and the computer chip are arranged in the computer body. The special construction project cost counter can ensure data safety by arranging the fingerprint identifier and avoids information disclosure, meanwhile the intelligent data storage key has a data storage function and makes programs and data not lost.
Owner:广州百士臣科技有限公司
A method and device for detecting the total acid content of vinegar
ActiveCN107132197BNo pollution in the processGuaranteed normal transmissionTransmissivity measurementsUSBBiology
Owner:JIANGSU UNIV
Electronic device metal wire/spring piece contact pressure full-automatic tester and test method
ActiveCN112964399AAccurate measurementWith fully automatic test functionForce measurementElectric connection testingTester deviceEngineering
According to the electronic device metal wire / spring piece contact pressure full-automatic tester and the test method, the positions of a plurality of metal wires / spring pieces to be tested are automatically and accurately identified in the field of view of the high-definition industrial camera, the position information is transmitted to the upper computer software, and after an adjustable loading sliding table is controlled to accurately move to the pressure test position, and then a hook of the programmable digital dynamometer is triggered to move downwards to accurately align at the position of the metal wire / spring piece, the metal wire / spring piece is automatically hung one by one, data measured by the dynamometer is returned to upper computer software, and a pressure value of a contact point is automatically calculated by combining a pressure calculation algorithm. According to the method, an automatic test function is realized, and the single measurement time of a single metal wire / leaf spring is less than 15s; measuring precision is high, precision in the tension range is + / -0.05 gf, meanwhile, maintenance and installation are convenient, and the overload protection function is achieved.
Owner:NORTHWESTERN POLYTECHNICAL UNIV
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