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31results about How to "Trigger stabilization" patented technology
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Sharing clothes dryer based on internet of things
InactiveCN107217445APrevent taking awayImprove securityOther washing machinesControl devices for washing apparatusCommunication unitThe Internet
The invention discloses a sharing clothes dryer based on the internet of things. The sharing clothes dryer comprises a server and a clothes dryer body. The clothes dryer body comprises a shell. A quick response code payment unit and a run button are arranged on the shell. A placement cavity, a wireless communication unit, a clothes drying device and a controller are arranged inside the shell. An opening is formed in the portion, on the surface of the shell, of the placement cavity. The shell is provided with two cover plates. The two cover plates and the shell are rotationally connected for sealing the opening of the placement cavity. A locking unit for locking the two cover plate is further arranged between the two cover plates. The server is used for generating a signal to be fed back to the controller by receiving payment information from a mobile terminal; the controller is used for receiving the feedback signal from the server to close a circuit loop of the clothes drying device and controlling the locking device to be unlocked; the run button is used for controlling the clothes drying device to be started and stopped. The sharing clothes dryer has the advantages of being convenient to use, good in clothes drying effect, capable of facilitating payment and the like.
Owner:刘婷婷
Long air gap discharge multi-physical-quantity synchronous observation system and method
PendingCN113125906AImprove accuracyRealize automatic synchronization trigger functionTesting using optic methodsVoltage generatorFlip-flop
The invention discloses a long air gap discharge multi-physical-quantity synchronous observation system and method, wherein the system comprises a current measurement device, an electric field measurement device and a schlieren observation device; a current measurement resistor of the current measurement device is connected in series between a Marx impulse voltage generator and a discharge ball, and a VHF antenna is arranged beside the Marx impulse voltage generator; the VHF antenna receives a VHF signal generated by sphere gap breakdown boosting of the Marx impulse voltage generator, and a trigger of an oscilloscope outputs a synchronizing signal to synchronize observation records of the current measurement device, the electric field measurement device and the schlieren observation device. According to the invention, the VHF antenna is arranged to collect the VHF signal generated by the sphere gap breakdown of the Marx impulse voltage generator before the discharge long air gap is subjected to breakdown discharge, and the signal is used as a synchronous starting reference signal, so that the accuracy of collecting the signal in the long air gap discharge stream-pilot conversion physical process is improved.
Owner:ELECTRIC POWER RES INST OF STATE GRID ANHUI ELECTRIC POWER +2
Bipolar trigger type multi-rod-electrode vacuum trigger switch
ActiveCN103560773AMeet application requirementsTrigger stabilizationElectronic switchingElectric power systemFlange
The invention discloses a bipolar trigger type multi-rod-electrode vacuum trigger switch which comprises a sealed shell body, wherein the sealed shell body is formed by an insulation outer shell, a cathode flange and an anode flange, and the cathode flange and the anode flange are arranged at the two ends of the insulation outer shell; a cathode and an anode are arranged at the two ends of the sealed shell body respectively, the cathode and anode have the same structure and are respectively provided with an electrode bottom column, an electrode platform and multiple rod-shaped electrodes arranged on the electrode platform; the rod-shaped electrodes of the cathode and rod-shaped electrodes of the anode extend in opposite directions and are arranged in a staggered mode, the widths of gaps between the adjacent rod-shaped electrodes are the same, and the widths of the gaps are the same as the widths from top ends of the rod-shaped electrodes to the opposite electrode platforms; a cathode trigger structure and an anode trigger structure are arranged in the cathode and the anode respectively. The switch can be stably triggered regardless of the polarity of voltage of main gaps, application requirements under power frequency voltage of an electric power system can be met, through-current capability is higher, the service life is longer, and self-breakdown does not easily occur.
Owner:HUAZHONG UNIV OF SCI & TECH +1
High-voltage pulse generator with low jitter
PendingCN107659291AUniform electric field distributionSmall delay jitterPulse generation by energy-accumulating elementElectric pulse generator detailsLow jitterHigh voltage pulse
The invention discloses a high-voltage pulse generator with low jitter. The high-voltage pulse generator comprises an outer barrel and a cover plate, wherein a gas switch I and a gas switch II which have the same structure, an earth plate and a center connection piece are arranged in a cavity formed by the outer barrel and the cover plate; the center connection piece is arranged between the gas switch I and the gas switch II; a trigger connecting rod of the gas switch I is connected to the center connection piece through an earth resistor A; the center connection piece is connected to a trigger connecting rod of the gas switch II through an earth resistor B; and the trigger connecting rod of the gas switch II is connected to the earth plate through an earth resistor C. The pulse generatorhas small delay jitter, small self-breakdown probability, stable work, adjustable working voltage and high anti-interference capability.
Owner:INST OF FLUID PHYSICS CHINA ACAD OF ENG PHYSICS
Anti-disassembly structure of electronic cigarette
The invention discloses an anti-disassembly structure of an electronic cigarette, the electronic cigarette comprises a shell, the shell comprises an upper shell and a lower shell which are matched with each other, and the upper shell covers the lower shell; a first slot is formed in the side surface of the upper shell, and a second slot is formed in the lower shell; an anti-disassembly assembly is arranged on the inner side of the second slot, and the anti-disassembly assembly comprises a seat body, a plug connector, a push plate, an elastic piece and a trigger mechanism; and the seat body is provided with a sliding groove. The push plate is slidably arranged in the sliding groove. The elastic piece is arranged in the sliding groove. One end of the elastic piece is connected with the push plate, and the other end of the elastic piece is connected with the bottom of the sliding groove. The triggering mechanism is arranged in the sliding groove, close to the bottom of the sliding groove and used for triggering the elastic piece. According to the anti-disassembly structure, the shell of the electronic cigarette has good anti-disassembly performance, a user can be effectively prevented from disassembling the electronic cigarette at will, the safety in the using process can be improved, and illegal manufacturers can be effectively prevented from disassembling, pirating and imitating the electronic cigarette at will.
Owner:惠州市大亚湾区新鹏城科技发展有限公司
PTC Integrated sensor
InactiveCN104783668AReduce offlineHighly integratedWarming devicesTemperature controlElectrical resistance and conductance
The invention relates to the technical field of temperature control sensors, in particular to a PTC integrated sensor. The PTC integrated sensor comprises a base. A sensing component is arranged in the base. The upper end of the base is sleeved with an upper cover which independently acts relative to the base. A compression spring is arranged between the base and the upper cover. The upper cover is in abutting linkage with the sensing component in the base in the downward-pressing process. The sensing component comprises an overheating power-off device provided with a heat keeping device. According to the PTC integrated sensor, when the temperature rise of an inner pot exceeds a thermistor set value, a main control panel circuit is switched off to achieve power-off protection; a heating circuit can be switched off when a contact piece deforms, at the moment, the PTC heating source heats a temperature sensing piece, and the power-off state is kept to prevent the problem that the contact piece is cooled and connected with the heating circuit again; a fusing core is directly molten through high temperature, and the heating circuit is switched off with force to achieve final protection; the temperature sensing piece and an insulation support are used as stress reaction components, the off-line problem of lead welding points is reduced, and the sensor is high in overall integration, convenient to maintain and stable to trigger and is perfectly protected.
Owner:FOSHAN CHUANDONG MAGNETOELECTRICITY +1
Thyristor LED (Light Emitting Diode) light adjusting circuit and mixed reference control method thereof
InactiveCN103152926BImprove conversion efficiencyTrigger stabilizationElectric light circuit arrangementDriver circuitPower factor
The invention discloses a thyristor LED (Light Emitting Diode) light adjusting circuit and a mixed reference control method thereof, which belong to the technical field of semiconductor lighting. The light adjusting circuit comprises a thyristor light modulator and a drive circuit, wherein the drive circuit comprises a rectifier bridge, an inductor, a switching tube, a rectifier filter output circuit, a mixed reference controller, a voltage sampling circuit and a current sampling circuit. The mixed reference control method comprises the following steps that an instantaneous value of input voltage of the drive circuit is compared with a reference value of reference voltage set in the mixed reference controller, and current reference is obtained; and then an instantaneous value of current which passes through the switching tube is compared with the current reference, and a signal used for controlling the switching tube to connect and disconnect is obtained. A flexible current reference combined mode is adopted to guarantee that relatively larger working current can pass through a light adjusting thyristor even if the instantaneous amplitude of the input voltage is lower. By using the method, the LED flicker phenomenon due to thyristor light adjustment can be effectively reduced, a high power factor can be kept, and the conversion efficiency of the drive circuit is increased.
Owner:SUNSUN LIGHTING CHINA
Hard disk self-destruction system for preventing computer files from being stolen
InactiveCN113392433AEasy to confirmShorten the timeErasing methodRecord information storageEmbedded systemMagnetic disks
The invention discloses a hard disk self-destruction system for preventing computer files from being stolen, and relates to the technical field of computer information security, and the problem that a hard disk stealing way is not reliable is solved. The system specifically comprises a main control center, a mobile terminal, an identity recognition module, a power module, a self-destruction module, a feedback module and a tracking module, and is characterized in that the main control center is a control core of the self-destruction system, the main control center is in communication connection with the identity recognition module, and the main control center comprises a storage module used for storing data of a self-destruction program system; and the mobile terminal is in communication connection with the identity recognition module. The time for other people to steal files is shortened through multiple ways, if an operator confirms that the files are stolen and a self-destruction instruction is started, a disk of the self-destruction module is demagnetized in a high-temperature state, and the result sending module sends the starting state of the electromagnetic self-destruction device to the feedback module, so that people can conveniently confirm whether the hard disk is destroyed or not, and the possibility that the hard disk is stolen is reduced.
Owner:郑小元
A vacuum trigger switch
The invention discloses a vacuum trigger switch comprising a closed shell. Negative pole and positive pole are respectively arranged at two ends of the closed shell, the negative pole comprises a negative pole guide rod, a negative pole contact terminal and a negative pole contact terminal sheet, the positive pole comprises a positive pole guide rod, a positive pole contact terminal and a positive pole contact terminal sheet, and the negative pole and the positive pole are hollow cylindrical and are provided with spiral notching, and the negative pole contact terminal and the positive pole contact terminal are of a cup shape, are provided with cylindrical wall, are provided with round hole in the middle of the cup bottom and are provided with spiral notching. The negative pole guide rod and the positive pole guide rod are coaxially and tightly connected with the cup bottoms of the negative pole contact terminal and the positive pole contact terminal, and the cup mouths of the negative pole contact terminal and the positive pole contact terminal are tightly connected with the negative pole contact terminal sheet and the positive pole contact terminal sheet. With the vacuum trigger switch, the electric pole ablated problem caused by electric arc gathering is avoided, the problem that metal plasma bodies in the electric arc splashes to trigger surface can be effectively avoided, service life of the vacuum trigger switch is prolonged and trigger energy is greatly reduced.
Owner:HUAZHONG UNIV OF SCI & TECH +1
Frequency response test method
PendingCN111983305ATrigger stabilizationEasy to measureSpectral/fourier analysisFrequency measurement arrangementSignal onComplex filter
The embodiment of the invention provides a frequency response test method. The signal testing method is applied to a signal measuring device of a signal testing system, the signal testing system comprises the signal measuring device and a signal generating device, the signal measuring device is connected with the signal generating device, the signal generating device is connected with tested equipment, and the tested equipment is connected with the signal measuring device. The method comprises the steps: the signal measuring device acquires parameter configuration information, and the signal measuring device generates a synchronous pulse signal; a post-sampling starting moment is determined according to the synchronous pulse signal, the synchronous pulse signal is sent to the signal generating device, a response signal of the tested equipment for the excitation signal is received by the signal measuring device, and a frequency response result of the tested equipment is outputted according to the response signal. Therefore, stable triggering of the low signal-to-noise ratio signal on the signal measuring device can be realized without designing a complex filter, and parameter measurement is facilitated.
Owner:SUZHOU RIGOL PRECISION ELECTRIC TECH
A ptc integrated sensor
InactiveCN104783668BReduce offlineHighly integratedWarming devicesTemperature controlElectrical resistance and conductance
The invention relates to the technical field of temperature control sensors, in particular to a PTC integrated sensor. The PTC integrated sensor comprises a base. A sensing component is arranged in the base. The upper end of the base is sleeved with an upper cover which independently acts relative to the base. A compression spring is arranged between the base and the upper cover. The upper cover is in abutting linkage with the sensing component in the base in the downward-pressing process. The sensing component comprises an overheating power-off device provided with a heat keeping device. According to the PTC integrated sensor, when the temperature rise of an inner pot exceeds a thermistor set value, a main control panel circuit is switched off to achieve power-off protection; a heating circuit can be switched off when a contact piece deforms, at the moment, the PTC heating source heats a temperature sensing piece, and the power-off state is kept to prevent the problem that the contact piece is cooled and connected with the heating circuit again; a fusing core is directly molten through high temperature, and the heating circuit is switched off with force to achieve final protection; the temperature sensing piece and an insulation support are used as stress reaction components, the off-line problem of lead welding points is reduced, and the sensor is high in overall integration, convenient to maintain and stable to trigger and is perfectly protected.
Owner:FOSHAN CHUANDONG MAGNETOELECTRICITY +1
Compound surge protector and compound surge protection method therefor
PendingCN108199363ATrigger stabilizationGreat trigger energyEmergency protective arrangements for limiting excess voltage/currentElectrical resistance and conductanceNew energy
The invention discloses a compound surge protector and a compound surge protection method therefor. The surge protector comprises a piezoresistor C, at least two three-pole discharge gap bodies, and at least two trigger circuits corresponding to the at least two three-pole discharge gap bodies, wherein each trigger circuit comprises a piezoresistor Z and a discharge tube. All three-pole dischargegap bodies are connected through positive electrodes and negative electrodes in series to form a three-pole discharge gap body component; the positive electrode of the first three-pole discharge gap body is connected with an L line of a low-voltage power distribution system; the negative electrode of the three-pole discharge gap body at the end is connected with an N (PE) line of the low-voltage power distribution system; and a trigger electrode of each three-pole discharge gap body is connected to the positive electrode through the corresponding discharge tube and piezoresistor Z; and the piezoresistor C is connected with the three-pole discharge gap body component in parallel. The surge protector disclosed by the invention is stable in triggering and high in trigger energy, and can adaptto lightning protection of new energy and industrial power distribution systems of which rated voltage is greater than 690VAC.
Owner:广东立信防雷科技有限公司
An oscilloscope and its timing setting method and system in automatic acquisition mode
ActiveCN107092436BImprove collection efficiencyTrigger stabilizationInput/output processes for data processingEngineeringSelf adaptive
The invention discloses an oscilloscope and a timing setting method and system thereof under an automatic collection mode. The system comprises a state machine which sets n pieces of states, and a timer, wherein a first state corresponds to timing time and a serial number progressive increase detection period; the nth state corresponds to the timing time and a serial number progressive decrease detection period; other states independently correspond to the timing time, the serial number progressive increase detection period and the serial number progressive decrease detection period; the timing time of the first state to an (n-1)th state progressively increases in sequence; the timing time of the first state is greater than the nth state; when a trigger signal is not detected in the serial number progressive increase detection period of a current state, an adjacent high serial number state is entered; when a plurality of trigger signals are detected in the serial number progressive decrease detection period of the current state, an adjacent low serial number state is entered; and therefore, according to the timing time of the current state of the state machine, timing sampling is carried out. Therefore, the timing time of the timing sample is adaptively regulated, and the stable trigger of a waveform is realized.
Owner:SHENZHEN CITY SIGLENT TECH
A passive switch type heating pot
ActiveCN111759157BSimple structureAvoid burnsWater-boiling vesselsVessels with intergral heatingEngineeringPhysics
The invention discloses a passive switch type heating pot. The passive switch type heating pot includes a pot body and a pot cover. The pot body includes a pot body and a base; Parts, the inside of the base is provided with a switch to control the heating part; the top of the pot cover is rotated and provided with a screw cap, and the inside of the pot cover is vertically provided with a transmission rod, and the transmission rod is slidingly arranged in the first perforation at the bottom of the pot cover; the body of the pot One side of the side slides along the vertical direction and is provided with a follower. The bottom end of the follower is located above the switch button of the switch. When the pot lid and the pot body are fully screwed, the top end of the follower corresponds to the position of the transmission rod. ; When the screw cap rotates, the switch is turned on or off based on the cooperation between the transmission rod and the follower, thereby starting or stopping the heating component. In the embodiment of the present invention, the heating trigger structure is built inside the passive switch type heating pot, which can effectively avoid the problem of empty heating in the passive switch type heating pot and ensure the personal safety of the user.
Owner:佛山市申海汇鑫科技有限公司
Three-phase silicon controlled rectifier voltage regulating system with self-adaptive performance
PendingCN112968592ANo workloadSolve technical problems with low work efficiencyPower conversion systemsSilicon-controlled rectifierProgrammable logic device
The invention discloses a three-phase silicon controlled rectifier voltage regulating system with self-adaptive performance, which is provided with an input wiring unit, wherein the input wiring unit is provided with three-phase power ports A, B and C, a silicon controlled rectifier conduction angle control signal PWM port and an enable signal EN port, the three-phase power ports A, B and C are connected with the input end of a three-phase power synchronous sampling transformer, the output end of the three-phase power synchronous sampling transformer is connected with the input end of the three-phase power synchronous processing unit, and the output end of the three-phase power synchronous processing unit, the conduction angle control signal PWM port and the enable signal EN port are all connected with the input end of a programmable logic device CPLD, the output end of the CPLD is connected with an output wiring unit through a driving isolation unit, and the output wiring unit is provided with six silicon controlled rectifier conduction angle trigger signal output ports P1P2, P3P4, P5P6, P7P8, P9P10, P11P12.
Owner:DALIAN JIAHE IND CONTROL TECH
Passive switch type heating kettle
ActiveCN111759157ASimple structureAvoid burnsWater-boiling vesselsVessels with intergral heatingEngineeringPhysics
Owner:佛山市申海汇鑫科技有限公司
Silicon controlled trigger signal generating device
InactiveCN101702623AEasy to debugTrigger stabilizationElectronic switchingAudio power amplifierTransformer
The invention discloses a silicon controlled trigger signal generating device comprising an operational amplifier, a capacitor, a triode, a transformer, three diodes and two resistors. The invention has simple debugging, stable triggering and good linearity.
Owner:CGN DASHENG ELECTRON ACCELERATOR TECH
Method and system for high-accuracy simultaneous observation of long air gap
ActiveCN102608503BRealize automatic trigger functionIncrease authenticityTelevision system detailsTesting dielectric strengthData memoryOptical observation
The invention relates to a method and a system for high-accuracy simultaneous observation of a long air gap. The method comprises the following steps of: employing an optical observation system and an electrical measurement system, wherein the optical observation system comprises a static-state optical imaging device and a high-speed imaging device; and the electrical measurement system comprises a current measuring device, an electric field measuring device and a voltage measuring device; triggering the high-speed imaging device and the static-state optical imaging device by using a high-speed trigger and controlling the two devices to take photos, and obtaining the photos by a high-speed camera through a network cable via a computer; synchronously triggering the high-speed imaging device and the static-state optical imaging device by means of the high-speed trigger, and outputting the exposure clock signal and an imaging start recording signal of the high-speed imaging device through a coaxial cable; and triggering a high-speed storing / recording device by using the imaging start recording signal to record all electrical signals. The system is composed of the static-state optical imaging device, the high-speed imaging device, a transient-state electric field measuring device, a discharge current measuring device, a discharge voltage measuring device, a high-speed data memory device and the high-speed trigger.
Owner:WUHAN NARI LIABILITY OF STATE GRID ELECTRIC POWER RES INST
A three-phase AC voltage regulation digital control device and control method
ActiveCN105048830BRealize digital controlEasy to controlAc-dc conversion without reversalCurrent/voltage measurementElectrical connectionData acquisition
The invention discloses a digital control device for three-phase AC voltage regulation. The primary side of a three-phase transformer is connected to a three-phase AC power supply, and the secondary side is electrically connected to a zero-crossing detection module and a three-phase rectifier circuit; the zero-crossing detection module, data acquisition The output ends of the modules are respectively connected to the host computer, and the host computer controls the three-phase rectification circuit through the pulse trigger module; the invention also discloses a digital control method for three-phase AC voltage regulation: the data acquisition module collects the measured voltage signal and the measured current of the load signal, the upper computer calculates the deviation between the measured voltage signal and the given voltage signal, and obtains the current control amount through voltage loop adjustment control; calculates the deviation between the current control amount and the measured current signal, and obtains the voltage control amount through current adjustment control, and the upper computer refers to The zero-crossing pulse signal output by the zero detection module enables the pulse trigger module to output a pulse signal to control the three-phase rectification circuit to realize three-phase AC voltage regulation. The invention has the characteristics of precise zero-crossing detection, stable triggering and the like.
Owner:南京开通自动化技术有限公司
Computer starting circuit capable of preventing misoperation
InactiveCN104820470ATrigger stabilizationThere will be no false flippingDigital data processing detailsElectronic switchingVoltage regulatorTriode
The invention discloses a computer starting circuit capable of preventing misoperation and relates to the technical field of the computer starting circuit, wherein the computer starting circuit comprises a south bridge chip, a power button, an ATX power supply and a double-D trigger, and the first foot of the double-D trigger is in parallel connection with the fourth foot of the double-D trigger via the second foot of the double-D trigger and is connected with the ninth foot of the ATX power supply; the fourteenth foot of the double-D trigger is connected with the ninth foot of the ATX power supply; the ninth foot of the ATX power supply is connected with the power button via a first resistor, and the ninth foot of the ATX power supply is connected with an input end of a voltage stabilizer, and an output end of the voltage stabilizer is connected with an input end of a triggering circuit; the third foot of the double-D trigger is connected with the power button; the fifth foot of the double-D trigger is connected with the first port of the triggering circuit, and the power button is connected with the second port of the triggering circuit; the third port of the triggering circuit is connected with a base of a triode, and a collector of the triode is connected with the fourteenth foot of the ATX power supply. The computer starting circuit of the invention can be used for solving the problem that current computer is overturned wrongly.
Owner:LIUZHOU RUIRI INFORMATION TECH CO LTD
Voltage monitoring device with mistaken touch prevention function and scanning mode
PendingCN113655246AAvoid lossEasy to useCurrent/voltage measurementMeasurement instrument housingComputer hardwareEngineering
The invention relates to the technical field of voltage detection, in particular to a voltage monitoring device with a mistaken touch prevention function and a scanning mode, which comprises a device main body, the device main body comprises a monitor body, and a display panel is embedded in one surface of the monitor body. According to the invention, a storage cylinder, an extension wire, a protection head and a fixing ring are arranged, so that a fixing ring and a protection head can be used for protecting an interface, and a worker is prevented from directly touching a power connection port of the device, so that the phenomena of poor contact and port damage caused by collision are reduced; the protection effect of the device on the electric port is increased, and the extension wire is used for prolonging the time, so that the anti-pulling performance of the power line of the device is improved to a certain extent when the power line is pulled by a worker or touched by mistake, and the stability of the device is indirectly improved.
Owner:南京乾瑞电力科技有限公司
Silicon-controlled trigger signal generating device
InactiveCN104579276AEasy to debugTrigger stabilizationElectronic switchingAudio power amplifierTransformer
The invention discloses a silicon-controlled trigger signal generating device. The silicon-controlled trigger signal generating device comprises an operational amplifier, a capacitor, a triode, a transformer, three diodes and two resistors. The silicon-controlled trigger signal generating device is simple in debugging, stable in triggering and good in linearity.
Owner:XIAN ZAOXIN ELECTRONICS INFORMATION TECH
Water level monitoring device for water conservancy project
PendingCN114166315APrevent disengagementStable floatingLevel indicators by floatsWater flowEnvironmental engineering
The invention discloses a water level monitoring device for water conservancy projects, and relates to the technical field of water level monitoring for water conservancy projects, the water level monitoring device comprises a water level measuring rod, a base fixedly connected to the bottom end of the water level measuring rod and an alarm arranged at the top end of the water level measuring rod, the upper part of the water level measuring rod is sleeved with a lock-free push switch, and a rod body of the water level measuring rod is movably sleeved with a buoyancy table; the outer wall of the buoyancy table is sleeved with an inverted ring plate used for preventing the buoyancy table from being separated from the water surface. A guide assembly used for sliding of the buoyancy table and the water level measuring rod is arranged in the inner ring of the buoyancy table. Through the arrangement of the buoyancy table and the inverted ring plate, the buoyancy table can be prevented from being blown by wind power to be separated from the water surface while the buoyancy is improved, the buoyancy table can stably float on the water surface all the time, and the alarm can be stably triggered; the buoyancy table can horizontally rotate while floating through the guide assembly, and the impact force of water flow is counteracted through the buoyancy table capable of horizontally rotating.
Owner:陈明威
Intelligent control method of access control system and access control system
InactiveCN111508127ATrigger stabilizationImprove reliabilityIndividual entry/exit registersEmbedded systemMicrowave radar
The invention discloses an intelligent control method for an access control system and an access control system. The method comprises the steps of: S1, obtaining an input signal detected by a microwave radar; S2, performing ADC sampling on the input signal to obtain an ADC value; S3, comparing the ADC value with an idle level value so as to judge whether human body triggering occurs or not; and S4, if yes, automatically turning on a camera to perform face recognition verification on a human body. The method provided by the technical schemes of the invention is stable in triggering and is highin reliability, and can avoid mistaken triggering for an obstacle.
Owner:厦门立林科技有限公司
Pneumatic module based on pneumatic muscle, active headrest and passive safety device
ActiveCN114074593ATrigger stabilizationSimple structureVehicle seatsBelt retractorsEngineeringHigh pressure gas
The invention relates to flexible execution equipment, and particularly discloses a pneumatic module based on pneumatic muscles, which comprises the pneumatic muscles (1) and a gas generator (2), and the main body part of the gas generator (2) is arranged in the open end of the pneumatic muscles (1) to seal the inner cavity of the pneumatic muscles (1), so that an integrated pneumatic module is formed. The gas generator (2) can generate high-pressure gas, so that the internal air pressure of the pneumatic muscle (1) is increased to generate axial contraction, and the gas generator (2) is sealed and keeps the increased air pressure. The invention further relates to an active headrest and to a passive safety device. According to the pneumatic module, the gas generator is integrated in the pneumatic muscle, so that the pneumatic module is more miniaturized and integrated, and the response is fast.
Owner:诺创汽车科技(上海)有限公司
Electromagnetic pulse migraine therapeutic apparatus
InactiveCN107929941ANo damageRemissionElectrotherapyArtificial respirationHeadache severeEngineering
The invention discloses an electromagnetic pulse migraine therapeutic apparatus including a body. A cover is disposed on the top of the body. An operation box is disposed on the upper side of the front of the body. A power interface is disposed on the back of the body. A display screen is disposed on the front side of the operation box housing. A key and a speed switch are successively disposed onone side of the display screen. An indication lamp is disposed above the speed switch. A power switch is arranged on one side of the operation box. One side of the body is fixedly connected with an electrode piece arranged on the inner wall of a helmet through an electromagnetic cable. The electromagnetic pulse migraine therapeutic apparatus has beneficial effects that a transformer is triggereda SCR to generate triggered high voltage; the trigger pulses are stable and reliable and are not omitted or continuously emitted; the circuit is simple and is stable in triggering and can output the low-frequency pulses to treat the forehead trigeminal nerve of a user with pulses in order to relieve the migraine and have no harm or side effect to the human body. The electromagnetic pulse migrainetherapeutic apparatus is easy to operate and reasonable in design, can treat the migraine, and can greatly improve the efficiency of migraine treatment.
Owner:李泽朋
A bipolar trigger type multi-rod vacuum trigger switch
ActiveCN103560773BMeet application requirementsTrigger stabilizationElectronic switchingElectric power systemAnode voltage
Owner:HUAZHONG UNIV OF SCI & TECH +1
Triggering device and method for silicon controlled rectifier in single-phase alternating current circuit
ActiveCN112968619ATrigger stabilizationRegulation stabilityAc-dc conversionSilicon-controlled rectifierControl signal
The invention relates to the field of electricity, and especially relates to a triggering device and method for a silicon controlled rectifier in a single-phase alternating current circuit. The triggering device comprises a sine wave positive and negative zero crossing point detection circuit, a first trigger control circuit, a second trigger control circuit and a trigger signal generation circuit. A sine wave positive and negative zero crossing point detection circuit is used for collecting a zero crossing point signal of the output end of the single-phase alternating current circuit, and outputting a first detection signal when the negative half wave of the voltage is gradually reduced to the positive half wave is gradually increased and a second detection signal when the positive half wave of the voltage is gradually reduced to the negative half wave is gradually increased; the first trigger control circuit converts the first detection signal into a first trigger control signal, and the second trigger control circuit converts the second detection signal into a second trigger control signal; and the trigger signal generating circuit converts the first trigger control signal and the second trigger control signal into silicon controlled rectifier trigger signals. According to the invention, stable triggering of the silicon controlled rectifier in the single-phase alternating current circuit can be realized without using an intelligent chip.
Owner:BEIHUA UNIV
Hard disk self-destruction device for preventing computer files from being stolen
InactiveCN111581678ASolve the problem that is difficult to trigger stablyTrigger stabilizationInternal/peripheral component protectionInduction heating controlThermal dilatationEngineering
The invention relates to the technical field of notebook hard disk self-destruction protection, and further discloses a hard disk self-destruction device for preventing computer files from being stolen. Elements such as a storage battery and a single-chip microcomputer are arranged in a tank body; the self-destruction device is provided with an independent power supply and an independent system; therefore, the influence of the notebook is avoided, stable triggering of the self-destruction device is ensured; the problem that an existing hard disk self-destruction device is difficult to enable stable triggering is solved, an electric heating net is fixed on the inner wall of a hard disk cover through a base band layer; the box body is arranged on the upper surface of the hard disk cover, theheating electrode is arranged at the end of the box body, and the box body is filled with the thermal expansion agent, so that when the self-destruction device is triggered, the electric heating network is electrified to heat, the magnetic disk is demagnetized, the thermal expansion agent is heated to expand and extrude to damage the hard disk, and the electric heating network is attached to themagnetic disk to ensure thorough demagnetization, hard disk repair and information leakage.
Owner:ANHUI UNIV OF SCI & TECH
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