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38results about How to "Reduce the probability of misoperation" patented technology
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Intelligent household electrical appliance control device, method and system
ActiveCN107450390AReduce malfunctionReduce the probability of misoperationProgramme controlComputer controlControl systemComputer module
The present invention provides an intelligent household electrical appliance control device, method and system. The intelligent household electrical appliance control device comprises a voice recognition module, an action module and at least one distance recognition module; the at least one distance recognition module is used for detecting whether a trigger object exists in a preset recognition range; the voice recognition module is used for recognizing received first voice information after the at least one distance recognition module detects that a trigger object exists in the recognition range, and judging whether the first voice information is a preset voice instruction; and the action module is used for executing an action of an intelligent household electrical appliance after the voice recognition module judges that the first voice information is a voice instruction, wherein the action of the intelligent household electrical appliance is corresponding to the voice instruction. With the intelligent household electrical appliance control device, method and system provided by the technical schemes of the invention adopted, the probability of the malfunction of the intelligent household electrical appliance can be decreased.
Owner:合肥美菱物联科技有限公司
Scheduling sequencing operating system based on intelligent robot
InactiveCN109634243AImprove the efficiency of scheduling operationsEasy to operateTotal factory controlProgramme total factory controlAutomatic controlPower grid
The embodiment of the invention discloses a scheduling sequencing operating system based on an intelligent robot. The scheduling sequencing operating system is characterized by comprising an intelligent operation ticket system, an anti-error function module, a dispatching intelligent command platform and an automated PCS9000 system; the anti-error function module and the operation ticket system are connected to be used for realizing the anti-error requirement of the operation ticket system, an anti-error rule is dynamically discriminated, order giving is automatically terminated, and an alarmis triggered; and the dispatching intelligent command platform and the automated PCS9000 system achieve automatic control through sequencing operation, sequencing is used for achieving automatic judgment after checking of the anti-error function module after ticket discharging of the operation ticket system, a polling robot is accessed in the judgment process, the intelligent command platform andthe automated system are interconnected, the requirements for five-prevention checking and tide checking can be met, effective communication between dispatching and the site can be achieved, the efficiency of grid dispatching operation is improved, the probability of misoperation is reduced, and efficient and reliable operation of a power grid is achieved.
Owner:GUANGDONG POWER GRID CO LTD +1
Control method for ventilation system of nuclear power station
ActiveCN102966586AEasy to operateReduce the probability of misoperationPump controlNon-positive displacement fluid enginesSequence controlNuclear power
The invention discloses a control method for a ventilation system of a nuclear power station. The control method comprises an inspection step of inspecting states of the ventilation system and ventilation equipment, a running step of performing a ventilation system starting sequence control process when the ventilation system meets the running conditions, a start alarm step of giving an alarm in 90 seconds when ventilation system sequence starting is of failure and returning to the inspection step, and a reset step of resetting a signal of the ventilation system and inspecting the state of the ventilation equipment. According to the control method, by adopting the sequence control technology for the ventilation system, the operation steps of running staffs are simplified, the error action probability of the running staffs is reduced, the automation level of the system is greatly increased, and the system efficiency is improved.
Owner:中广核工程有限公司 +1
Processing method and system of nuclear power plant distributed control system
ActiveCN104485143AReduce the probability of misoperationAvoid error conditionsPower plant safety arrangementNuclear energy generationInstrument controlNuclear power plant
The invention belongs to the nuclear power plant instrument control field and provides a processing method and system of a nuclear power plant distributed control system. The method includes the following steps that: information transmitted by a current acquisition and processing board is received, wherein the information includes ranging codes of first current signals and significance bits of the current acquisition and processing board; whether the current acquisition and processing board is in a ranging switching state is judged according to the received information; and when the current acquisition and processing board is in the ranging switching state, delay time for transmitting second current signals to anticipated transients without trip (ATWT) protection is determined according to the received information which is transmitted by the current acquisition and processing board, wherein the second current signals are determined according to the ranging codes and analog quantity of the first current signals. With the processing method and system provided by the embodiment of the invention, the probability of misoperation of the ATWT protection can be decreased.
Owner:DAYA BAY NUCLEAR POWER OPERATIONS & MANAGEMENT +2
Detection alarm of conducting liquid
InactiveCN1417575AImprove anti-interference abilityImprove reliabilityMaterial resistanceDriving currentVoltage converter
In the present invention, the circuit includes sampling unit, detection unit, output unit and executing unit. A transformer is connected between the sampling unit and the detection unit, the AC wave generator circuit in the secondary side provides drive current and the AC voltage in the primary side is applied across the detection electrodes. The detection unit includes current-to-voltage converter circuit, rectifier and filter circuit, comparator circuit, and executing circuit to send out signal. The present invention has simple structure, small size, less error action. The detection circuitand the tested circuit are separated electrically and this can protect the detector, avoid interference, avoid the damage of the detection electrodes, increase their service life, and monitor the tested environment in real time.
Owner:GUANGDONG YADA ELECTRONICS
Leakage current detection protection circuit of direct-current remote supply power system
ActiveCN103795029AAvoid system leakage current phenomenonReduce the probability of leakage current misoperationEmergency protective arrangements for automatic disconnectionDrain currentHemt circuits
The invention discloses a leakage current detection protection circuit of a direct-current remote supply power system. The circuit comprises a leakage current sampling module, a positive ground leakage current detection protection module, a negative ground leakage current detection protection module, a leakage current protection signal reporting module, and an MCU control module for controlling shut-down operation of the direct-current remote supply system. The input terminals of the positive ground leakage current detection protection module and the negative ground leakage current detection protection module are respectively and electrically connected with the leakage current sampling module; the output terminals of the positive ground leakage current detection protection module and the negative ground leakage current detection protection module are respectively and electrically connected by the leakage current protection signal reporting module; and the leakage current protection signal reporting module and the MCU control module are electrically connected. According to the invention, the requirement that the impedance to the ground of the output positive-negative line is larger than 1-M ohm can be met, thereby realizing to-the-ground transmission suspension power supply outputting; and the probability of leakage current misoperation can be substantially reduced.
Owner:SHENZHEN JINTING TECH
Elevator car accidental movement protection device and control method
An elevator car accidental movement protection device comprises an elevator car motion detection unit, an elevator car accidental movement detection unit, a control unit, a braking device and a self-locking device. The control unit is connected with the elevator car motion detection unit, the elevator car accidental movement detection unit, the braking device and the self-locking device. The elevator car motion detection unit is used for detecting the motion state of an elevator car. The elevator car accidental movement detection unit is used for detecting whether the elevator car moves accidentally or not. The braking device is used for braking the elevator car when the elevator car moves accidentally in an elevator stopping and door opening state after entering a door area or in a door closing state after receiving an operation instruction at the door area. The self-locking device is used for conducting self-locking on the braking device when the elevator car is in a high-speed running state, or in the state of being standby at the door area after an elevator door is opened, or in the state of leaving the door area. By adopting the elevator car accidental movement protection device, the probability of occurrence of false operations of the braking device is reduced, and the safety and reliability of products are improved.
Owner:ZOOMLION HEAVY IND CO LTD
Power transformation equipment online monitoring system
InactiveCN104377821AImprove reliabilityImprove stabilityCircuit arrangementsInformation technology support systemMonitoring statusIntegrated monitoring
The invention relates to a power transformation equipment online monitoring system. The power transformation equipment online monitoring system is used for continuously or periodically monitoring and detecting power equipment status automatically under a non-power-outage circumstance. The online monitoring system is mainly formed by a monitoring device, an integrated monitoring unit and a station end monitoring unit, so that collection, transmission, background processing and storage forwarding functions of online monitoring status data are achieved. The monitoring device is installed on or nearby monitored equipment and used for automatically collecting, processing and sending status information of the monitored equipment; the monitored equipment serves as an object of the integrated monitoring unit, the integrated monitoring unit is used for receiving data sent by the online monitoring device related to the monitored equipment and used for processing the data, and standardized data communication is carried out on the integrated monitoring unit and the station end monitoring unit; a transformer substation serves as an object of the station end monitoring unit, and the station end monitoring unit is used for analyzing all monitoring data in the substation and managing the monitoring device and the integrated monitoring unit.
Owner:柳州市金旭节能科技有限公司
Remote automatic meter reading concentrator system
InactiveCN105006135AImprove reliabilityImprove stabilityElectric signal transmission systemsModem deviceLow voltage
The invention discloses a remote automatic meter reading concentrator system. The system comprises an intelligent electric energy meter, a data collector, a power line modem 2, a low-voltage power net, a power line modem 1, a concentrator, a modem 2, a data communication network, a modem 1 and a remote server meter reading center, the data collector is embedded in the intelligent electric energy meter and is used for automatic acquisition, processing and sending of power consumption information and charging information of monitored electric equipment, the data collector converts the collected power consumption data into data in a form suitable for power line carrier transmission by the power line modem 2 and the data is output and transmitted by the low-voltage power net. The data subjected to carrier transmission of the low-voltage power net is converted into data in the other data format by the power line modem 1. The data in the other data format is transmitted into the concentrator. The system has the advantages of high technical level, good reliability, data accuracy, high adaptability, complete functions, small module volume and low power consumption.
Owner:赖玉春
Over-speed dynamic capture hydraulic system for rail transportation carts
ActiveCN104527712AAdaptableReduce workloadRailway hydrostatic brakesRailway hydrodynamic brakesFuel tankEngineering
The invention relates to an over-speed dynamic capture hydraulic system for rail transportation carts and belongs to an automatic protection system for over-speed of rail transportation carts. A hydraulic device comprises a signal detection portion, a pressure relief portion, a liquid charging portion, an execution portion and an oil tank. A P2 port of a NO.2 throttling valve of the throttling valve is connected with a K port of a pilot operated check valve of the pressure relief portion. A liquid outlet of a primary filter of the signal detection portion is connected with a P1 port of a NO.5 check valve of the liquid charging portion. A B port of a NO.1 insertion valve and a B port of a NO.2 insertion valve of the pressure relief portion and a P2 port of a NO. 7 check valve of the liquid charging portion are connected with a liquid inlet and a liquid outlet of a brake oil cylinder piston rod cavity of the execution portion. Oil return ports of the signal detection portion, the pressure relief portion, the liquid charging portion and the execution portion are connected with the oil tank. A plurality of brake oil cylinders are arranged on the execution portion. The hydraulic system is high in detection accuracy, capable of achieving rapid braking during over-speed of tramcars, good in brake effect, low in false operation rate, high in safety and reliability, low in worker workload and adaptable to work conditions with various transportation speed requirements.
Owner:CHINA UNIV OF MINING & TECH
Intelligent electric quantity acquisition system
InactiveCN105049307AImprove reliabilityImprove stabilityElectric signal transmission systemsPower distribution line transmissionElectric power transmissionModem device
An intelligent electric quantity acquisition system comprises an intelligent electric energy meter, a data collector, a power line modulator-demodulator 2, a low voltage power grid, a power line modulator-demodulator 1, a concentrator, a modulator-demodulator 2, a data communication network, a modulator-demodulator 1 and a remote server meter reading center. The data collector is embedded in the intelligent electric energy meter, converts the acquired power consumption data into a data format suitable for the electric power carrier wave transmission via the power line modulator-demodulator 2 and outputs and transmits via the low voltage power grid, the data of the low voltage power grid carrier wave transmission is carried out the data format conversion via the power line modulator-demodulator 1, and the data after the format conversion is transmitted to the concentrator. The concentrator is equipped with a Flash memory, and is used to pre-store the data transmitted by the data collector according to a set time interval to be convenient for the data backup. The intelligent electric quantity acquisition system of the present invention has the advantages of good reliability, accurate data, strong adaptability, complete function, small module size and low power consumption.
Owner:赖玉春
Remote electric quantity automatic acquisition system
InactiveCN105006136AImprove reliabilityImprove stabilityElectric signal transmission systemsModem deviceLow voltage
The invention discloses a remote electric quantity automatic acquisition system. The system comprises an intelligent electric energy meter, a data collector, a power line modem 2, a low-voltage power net, a power line modem 1, a concentrator, a modem 2, a data communication network, a modem 1 and a remote server meter reading center, the data collector is embedded in the intelligent electric energy meter and is used for converting the collected power consumption data into data in a form suitable for power line carrier transmission by the power line modem 2 and the data is output and transmitted by the low-voltage power net. The data subjected to carrier transmission of the low-voltage power net is converted into data in the other data format by the power line modem 1. The data in the other data format is transmitted into the concentrator. The concentrator automatically carries out system self-inspection, and records an event and gives an alarm when equipment abnormity is found. The system has the advantages of good reliability, data accuracy, high adaptability, complete functions, small module volume and low power consumption.
Owner:赖玉春
Method and system of voice interaction
InactiveCN1661676AReduce the probability of misoperationSpeech recognitionInteraction systemsHuman–computer interaction
The present invention relates to a speed interaction system capable of making an electronic equipment product proper response to the speech given out by a user. Said system includes a detection module, an identification module, an action module, a timing module and a switching module. Said invention also provides its speech interactive method.
Owner:ACER INC
Absence-of-ground electricity leakage protection circuit of electric water heater for single-phase power supply shower
InactiveCN102570383AAvoid troubleImprove accuracyEmergency protective arrangements for automatic disconnectionHemt circuitsWeak current
The invention belongs to the field of protection circuits, and discloses an absence-of-ground electricity leakage protection circuit of an electric water heater for single-phase power supply shower. The absence-of-ground electricity leakage protection circuit of the electric water heater for single-phase power supply shower comprises a weak current detection circuit, a weak current amplifying circuit, a precise rectifying circuit and a relay control circuit, wherein the weak current detection circuit comprises a work frequency current inductor and a resistor R1; the work frequency current inductor is connected in parallel with the resistor R1 and is connected with two input ends of the weak current amplifying circuit; and one end of the work frequency current inductor is grounded. The weak current amplifying circuit is an amplifying circuit with a zeroing circuit. With the adoption of the protection circuit, the detection of electricity leakage can be effectively carried out, personal safety is protected, and the accuracy is high.
Owner:ANHUI UNIVERSITY OF TECHNOLOGY
Ball bearing switch
ActiveCN101079621AReduce the probability of misoperationImprove usage sensitivityElectronic switchingCoupling light guidesBall bearingMechanical engineering
The invention discloses a ball switcher, which comprises the following parts: base, a seal launcher and a receiver assembled in the seal container jacketed in the base to mate mutually, seal container jacketed in the base to contain ball and bearing unit, lid to cover the base, wherein the inner cylinder contains a basic wall and optical inlet hole through the basic wall to face the straight communicating path; the inner lid concludes a cap, a self-sealing moulding projection and optical outlet hole through the projection to face the straight communicating path; the ball rolls between the baffling position and the separating position of straight communicating path. The invention can prevent ball not lying at the baffling position, which can reduce the error movement generating rate.
Owner:ONCQUE CORP
Intelligent meter reading system
InactiveCN105046933AImprove reliabilityImprove stabilityElectric signal transmission systemsModem deviceLow voltage
The invention discloses an intelligent meter reading system. The intelligent meter reading system comprises an intelligent electric energy meter, a data acquisition device, a second power line modem, a low-voltage power grid, a first power line modem, a concentrator, a second modem, a data communication network, a first modem and a remote server meter reading centre, wherein the data acquisition device is embedded into the intelligent electric energy meter, and is used for automatically acquiring, processing and transmitting electricity consumption information and charging information of monitored electric equipment; the data acquisition device converts the electricity consumption data acquired through the second power line modem into a data format which is suitable to be transmitted by a power carrier and outputs and transmits the electricity consumption data through the low-voltage power grid; the data which are transmitted by the carrier of the low-voltage power grid are subjected to data format conversion through the first power line modem; the data which are subjected to the format conversion are transmitted to the concentrator. The intelligent meter reading system has the advantages that the technical level is high, the reliability is high, the data are accurate, the adaptability is high, the functions are complete, the module size is small, the power consumption is low, and the operation interface of the system is simple and easily understood, and is convenient to install and maintain.
Owner:赖玉春
Intelligent meter reading concentrator system
InactiveCN105046929AImprove stability and reliabilityReduce the probability of misoperationElectric signal transmission systemsData transmissionPower grid
The invention discloses an intelligent meter reading concentrator system. The intelligent meter reading concentrator system comprises an intelligent electric energy meter, a data acquisition device, a second power line modem, a low-voltage power grid, a first power line modem, a concentrator, a second modem, a data communication network, a first modem and a remote server meter reading centre, wherein the data acquisition device is embedded into the intelligent electric energy meter, and converts the electricity consumption data acquired through the second power line modem into a data format which is suitable to be transmitted by a power carrier and outputs and transmits the electricity consumption data through the low-voltage power grid; the data which are transmitted by the carrier of the low-voltage power grid are subjected to data format conversion through the first power line modem; the data which are subjected to the format conversion are transmitted to the concentrator; the data acquisition device is provided with a visual graphic interface, and has the communication functions of RS232 (Recommend Standard 232), RS485 (Recommend Standard 485), a full-speed USB (Universal Serial Bus) interface, IrDA (Infrared Data Association), infrared and Bluetooth. The intelligent meter reading concentrator system has the advantages that the acquired data are accurate and reliable, the power consumption is low, and the operation interface is simple.
Owner:赖玉春
Charging pile locking mechanism
InactiveCN105337363ASimple structureWork reliablyBatteries circuit arrangementsElectric powerControl signalControl engineering
The invention relates to a charging pile locking mechanism comprising a control signal input module, an optocoupler isolating module, a signal processing module, a driving module, a power sampling module and a locking mechanism module, wherein the control signal input module is connected with the optocoupler isolating module, the optocoupler isolating module is connected with the signal processing module, the signal processing module is connected with the driving module, the driving module is connected with the locking mechanism module, and the optocoupler isolating module, the signal processing module and the driving module are connected with the power sampling module; and the optocoupler isolating module isolates a control signal received by the control signal input module and then inputs the control signal to the signal processing module, then the control signal is processed by the signal processing module and then is output to the driving module, and the driving module performs current amplification and then drives the locking mechanism module so as to control the locking mechanism to lock and unlock a charging gun plugged into a charging pile.
Owner:罗继东
Realization method of relay driving module applied to elevator control system
InactiveCN104347313AGuaranteed safe operationSafe and reliableElevatorsRelaysControl systemControl signal
The invention discloses a realization method of a relay driving module applied to an elevator control system. The realization method is mainly explained in two aspects including control signals and conversion circuits. A measure of avoiding relay false operation under the condition that program fleet occurs or the control system is always in the reset state by a certain reason is provided for the control system, so that the safety and the reliability of the elevator control are enhanced.
Owner:JIANGSU XIDE ELEVATOR
Intelligent electric energy measuring remote metering system
InactiveCN105575098AImprove stability and reliabilityReduce the probability of misoperationElectric signal transmission systemsElectrical measurementsData transmissionPower grid
The invention relates to an intelligent electric energy measuring remote metering system which comprises an intelligent ammeter, a data acquisition unit, a second power line modulator-demodulator, a low-voltage power network, a first power line modulator-demodulator, a concentrator, a second modulator-demodulator, a data communication network, a first modulator-demodulator and a remote server meter-reading center, wherein the data acquisition unit is embedded on the intelligent ammeter and is used for automatically collecting, treating and sending the electricity consumption information and the charging information of the monitored electric equipment; the data acquisition unit is used for converting the collected electricity consumption data into the data format fit for power line carrier transmission through the second modulator-demodulator and performing output transmission through the low-voltage power network; the data which are transmitted in a carrier manner by the low-voltage power network is subjected to data format conversion through the first power line modulator-demodulator; and the data after format conversion are transmitted to the concentrator. The intelligent electric energy measuring remote metering system provided by the invention has the advantages of high technical level, high reliability, data accuracy, good adaptability, complete function, small module volume and low power consumption.
Owner:彭江莲
Signal amplification type automatic irrigation control system based on voltage compensation circuit
InactiveCN105993857ALow error rateImprove stabilityClimate change adaptationWatering devicesSignal amplificationPower flow
The invention discloses a signal amplification type automatic irrigation control system based on a voltage compensation circuit. The signal amplification type automatic irrigation control system is characterized by mainly consisting of a control chip U3, a diode D2, a detecting probe Q1, a detecting probe Q2, a resistor R2, a resistor R1 and the like, wherein the resistor R2 is connected in series between the detecting probe Q1 and a P pole of the diode D2; the resistor R1 is connected in series between the detecting probe Q1 and a VIN tube pin of the control chip U3. The signal amplification type automatic irrigation control system has the advantages that a current signal output from the control chip can be subjected to amplification processing, so that the control chip well recognizes the signal and outputs an accurate control signal, and the control precision of the control system on a water pump is greatly improved.
Owner:成都特普瑞斯节能环保科技有限公司
Elevator car accidental movement protection device and control method
Owner:ZOOMLION HEAVY IND CO LTD
Protective automatic irrigation control system based on voltage compensation circuit
InactiveCN106020046AEasy to controlReduce the probability of misoperationProgramme controlComputer controlElectrical resistance and conductanceControl system
The invention discloses a protective automatic irrigation control system based on a voltage compensation circuit, which is characterized in that: a control chip U3, a diode D2, a detection probe Q1, a detection probe Q2, and a P The resistor R2 between the electrodes is composed of. The present invention adopts the A6210 integrated chip as the control chip, and combines the logic gate to control the water pump. Compared with the traditional control system using mechanical switches to control, the present invention has a lower error rate and can control the work of the water pump more accurately. The invention can compensate the voltage drop caused by wires or resistance, so that the working voltage of the invention is more stable.
Owner:成都特普瑞斯节能环保科技有限公司
Stall protection control system of aircraft
ActiveCN108216582AReduce the probability of misoperationControl out of dangerActuated automaticallyControl systemElevator control
The invention relates to the field of flight control, in particular to a stall protection control system of an aircraft. The stall protection control system is suitable for the aircraft with a simplemechanical control system or a mechanical power assisted control system. The natural stall characteristics of the aircraft may have the risk of entering a stall and deviation state, do not meet the requirements of relevant provisions of airworthiness and affect the safety of the use of mission modes. The stall protection control system of the aircraft controls an elevator control lever by virtue of a control computer and an electromechanical actuator, wherein a fan-shaped wheel is fixedly mounted on a rocker arm of an elevator control mechanism; and the two ends of the fan-shaped wheel are separately connected to the electromechanical actuator through a steel cable. When the aircraft stalls, the control computer collects flight parameter signals and sends an instruction to the electromechanical actuator, and the electromechanical actuator rotates to drive the elevator control lever to move so as to prevent the aircraft from entering a stall state. The stall protection control system ofthe aircraft effectively prevents the aircraft from entering the stall state, reduces the steering burden of a pilot, and improves the safety of the aircraft.
Owner:中航通飞华南飞机工业有限公司
Reactor control room system
ActiveCN110783007ASmall space requirementImprove work efficiencyPower plant safety arrangementMan-machine nuclear interfaceWorkstationBroadcasting
The invention discloses a reactor control room system which comprises a digitizer control system at the background of a control room, and a man-machine interaction facility, a digitizer control systemsignal output unit, a digitizer control system signal input unit and a fault diagnosis unit which are arranged in the control room, wherein the man-machine interaction facility specifically comprisesa computer operator working station and a voice recognition unit. Due to adoption of a fault diagnosis and voice recognition system of the reactor control room system disclosed by the invention, automatic voice broadcasting of fault information and issuing of voice operation instructions can be achieved, the working efficiency of an operator can be improved, mal-operation can be reduced, layout can be optimized, and demands on the space of the control room can be reduced. The working efficiency of operators in abnormal situations can be effectively improved, the probability of mal-operation of the operators can be reduced, meanwhile, the number of operator working stations and operators in the control room can be reduced, and furthermore, the demands on the space of a main control room can be reduced.
Owner:HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
Leakage Current Detection and Protection Circuit for DC Remote Power Supply System
InactiveCN103795029BAvoid Leakage Current PhenomenonReduce the probability of misoperationEmergency protective arrangements for automatic disconnectionElectricityDrain current
The invention discloses a leakage current detection protection circuit of a direct-current remote supply power system. The circuit comprises a leakage current sampling module, a positive ground leakage current detection protection module, a negative ground leakage current detection protection module, a leakage current protection signal reporting module, and an MCU control module for controlling shut-down operation of the direct-current remote supply system. The input terminals of the positive ground leakage current detection protection module and the negative ground leakage current detection protection module are respectively and electrically connected with the leakage current sampling module; the output terminals of the positive ground leakage current detection protection module and the negative ground leakage current detection protection module are respectively and electrically connected by the leakage current protection signal reporting module; and the leakage current protection signal reporting module and the MCU control module are electrically connected. According to the invention, the requirement that the impedance to the ground of the output positive-negative line is larger than 1-M ohm can be met, thereby realizing to-the-ground transmission suspension power supply outputting; and the probability of leakage current misoperation can be substantially reduced.
Owner:SHENZHEN JINTING TECH
Signal amplification type automatic irrigation control system based on protective circuit
InactiveCN106050629AEasy to controlReduce the probability of misoperationClimate change adaptationWatering devicesElectrical resistance and conductanceControl system
The invention discloses a signal amplification type automatic irrigation control system based on a protective circuit. The signal amplification type automatic irrigation control system is characterized in that the system is mainly composed of a control chip U3, a diode D2, a detection probe Q1, a detection probe Q2, a resistor R2,the protective circuit, a resistor R1 and the like, wherein the resistor R2 is connected between the detection probe Q1 and a P pole of the diode D2 in series, the protective circuit is connected with a VIN pin of the control chip U3, and the resistor R1 is connected between the detection probe Q1 and the protective circuit in series. By the adoption of the signal amplification type automatic irrigation control system, a current signal output to the control chip can be amplified and thus can be well recognized by the control chip, and a precise control signal is output, so that the accuracy of control over a water pump can be improved greatly.
Owner:成都特普瑞斯节能环保科技有限公司
Explosion-proof dual-technology inductive switch
InactiveCN110933823ASensitiveReduce the probability of misoperationElectrical apparatusEnergy saving control techniquesControl cellProcessing element
The invention discloses an explosion-proof dual-technology inductive switch, which comprises a shell and a PCB, and is characterized in that the shell is formed by die-casting high-strength alloy aluminum at one time, and the surface of the shell is subjected to high-voltage electrostatic spraying after being subjected to high-speed shot blasting; the PCB comprises a power supply module, a microwave detection module, an infrared detection module, a data acquisition unit, a data processing unit, a switch control unit and a switch module; the data acquisition unit acquires signals transmitted bythe microwave detection module and the infrared detection module and transmits the signals to the data processing unit, and the data processing unit processes the signals and transmits the signals tothe switch control unit to control on-off of the switch module. The inductive switch transmits signals to the data processing unit only when the microwave detection module and the infrared detectionmodule detect the signals at the same time. Interference of hot air and non-heat-source moving objects during infrared detection can be eliminated, interference of various heat sources during microwave detection can be eliminated, and the inductive switch is sensitive in induction and low in misoperation rate.
Owner:武汉圣达电气股份有限公司
A smart home appliance control device, control method and control system
ActiveCN107450390BReduce malfunctionReduce the probability of misoperationProgramme controlComputer controlControl systemComputer module
Owner:合肥美菱物联科技有限公司
A hydraulic system for overspeed dynamic capture of rail transport vehicles
ActiveCN104527712BAdaptableReduce workloadRailway hydrostatic brakesRailway hydrodynamic brakesFuel tankEngineering
The invention relates to an over-speed dynamic capture hydraulic system for rail transportation carts and belongs to an automatic protection system for over-speed of rail transportation carts. A hydraulic device comprises a signal detection portion, a pressure relief portion, a liquid charging portion, an execution portion and an oil tank. A P2 port of a NO.2 throttling valve of the throttling valve is connected with a K port of a pilot operated check valve of the pressure relief portion. A liquid outlet of a primary filter of the signal detection portion is connected with a P1 port of a NO.5 check valve of the liquid charging portion. A B port of a NO.1 insertion valve and a B port of a NO.2 insertion valve of the pressure relief portion and a P2 port of a NO. 7 check valve of the liquid charging portion are connected with a liquid inlet and a liquid outlet of a brake oil cylinder piston rod cavity of the execution portion. Oil return ports of the signal detection portion, the pressure relief portion, the liquid charging portion and the execution portion are connected with the oil tank. A plurality of brake oil cylinders are arranged on the execution portion. The hydraulic system is high in detection accuracy, capable of achieving rapid braking during over-speed of tramcars, good in brake effect, low in false operation rate, high in safety and reliability, low in worker workload and adaptable to work conditions with various transportation speed requirements.
Owner:CHINA UNIV OF MINING & TECH
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