44 results about "High level trigger" patented technology

The invention belongs to the technical field of alarm equipment and discloses a lora networking smog alarming system and method. The lora networking smog alarming system comprises a smog detection module, an Lora module and an Lora gateway. The alarming method comprises steps that when smoke enters an optical maze, an infrared receiving tube on the optical maze receives infrared light, and an intelligent alarm circuit determines whether the threshold is exceeded and sends an alarm if yes; and a high level trigger signal is sent through an INT pin, the Lora module is activated from a Sleep mode to a work mode, after the Lora module receives data, the MCU of the Lora module opens a radio unit and transfers the data to an RF unit, and the data are converted into electromagnetic waves to be emitted. The smog detection data transmission distance of the invention is far, and after the low power consumption Lora module is adopted, the transmission distance of the smog alarming system is more than 2500m, which is 20 times of the current transmission distance of the RF 470MHz.

The invention discloses an ultra-low power consumption standby bluetooth device and an implementation method thereof. The bluetooth device comprises a main body and a switch device, a control circuit is arranged in the main body, the control circuit comprises a bluetooth module, a low level trigger ultra-low power consumption switch module and a high level trigger reset switch module, the low level trigger ultra-low power consumption switch module is connected with a deep sleep control pin of the bluetooth module, the high level trigger reset switch module is connected with an ON / OFF end of the bluetooth module, and a switching device controls the low level trigger ultra-low power consumption switch module and the high level trigger reset switch module to work. When a 50MAH battery is used on a bluetooth headset, standby current is 0.5muA, theory standby time can as long as 2500 hours which is amounted to 104 days, and when the ultra-low power consumption standby bluetooth device is used on the bluetooth headset, the standby time can increase from 4 days to 104 days, 100 days of standby time are increased, charging frequency is greatly reduced, and using convenience is increased.

The invention relates to an electric disk and method utilizing a backup power supply to execute data destruction, wherein the electric disk comprises an electric disk body, and further comprises an intelligent backup power supply comprising a charging circuit, an energy storage element, a power supply control circuit, a data destruction pulse generation circuit and an automatic discharging circuit; the charging circuit is connected with the energy element also connected with the power supply control circuit, the data destruction pulse generation circuit and the automatic discharging circuit are arranged between the power supply circuit and the electric disk body; the method is as follows: the power supply is controlled by the power supply control circuit; a high electrical-level triggering signal is generated by data destruction pulse; data destruction action is executed by the electric disk body; after that, a feedback signal is provided; and the automatic discharging circuit provides a switch-off signal for the power supply control circuit, which is followed by end. According to the invention, the data destruction is executed by the backup power supply, so that the data destruction function can be finished by the electric disk under both of electrified or non-electrified conditions.

The invention discloses an energy-saving electric blanket temperature controller. The energy-saving electric blanket temperature controller comprises a 220 V alternating current power supply, a resistance capacitance voltage reduction rectification circuit, a 12 V direct current voltage stabilization circuit, an intermittent oscillation circuit, an intermittent time adjustment circuit, an electric blanket drive circuit and an indication circuit, and is characterized in that the type of a binary serial counting integrated circuit IC1 in the intermittent oscillation circuit adopts HEF4060 or CD4060. The continuous power-on mode of the electric blanket is changed into the intermittent power-on mode through the phenomenon that the temperature of the electric blanket has delay thermal inertia, so that the length of the power-on time of the electric blanket is changed. The continuous power-on mode of the electric blanket is changed into the intermittent power-on mode in a way that the intermittent oscillation circuit intermittently outputs high level to trigger the conduction of bidirectional controllable silicon, so that the purpose of adjusting the electric heating wires of the electric blanket to intermittently generate heat for temperature control is achieved. According to the energy-saving electric blanket temperature controller, the use effect of the electric blanket cannot be affected and the power consumption is effectively reduced.

The present invention provides a Bluetooth apparatus with ultra-low standby power consumption and an implementation method thereof. The Bluetooth apparatus comprises a main body and a switch apparatus. A control circuit is arranged in the main body, and the control circuit comprises a Bluetooth module, a low-level-triggered ultra-low power consumption switch module and a high-level-triggered reset switch module. The low-level-triggered ultra-low power consumption switch module is connected to a deep sleep control pin of the Bluetooth module, and the high-level-triggered reset switch module is connected to an ON / OFF end of the Bluetooth module. A switching apparatus controls the low-level-triggered ultra-low power consumption switch module and the high-level-triggered reset switch module to work. According to the present invention, when a 50 MAH battery is used on a Bluetooth headset, the standby current is 0.5 uA, and theoretical standby time can reach 2500 hours, which is amounted to 104 days. When the novel technology is used on the Bluetooth headset, standby time can increase from 4 days to 104 days, with an increase of 100 days of standby time, which greatly reduces charging frequency and improves convenience in use.

The invention provides an intermittent temperature controller for an electric blanket. The intermittent temperature controller for the electric blanket comprises a 220V alternating-current power source, a resistance-capacitance voltage-reducing rectification circuit, a 12V voltage stabilizing circuit, an intermittent oscillation circuit, an intermittent time adjustment circuit, an electric blanket driving circuit and an electric blanket working condition indicating circuit, and is characterized in that the model of a binary serial counting integrated circuit IC1 is HEF4060. A traditional electric blanket temperature control switch is too simple, an electric blanket continuous energized mode is changed into an intermittent energized mode by the aid of delay heat inertia of the electric blanket temperature, the intermittent oscillation circuit outputs high level intermittently to trigger on of a bidirectional thyristor, and accordingly continuous energized operation of the electric blanket is changed into intermittent energized operation, the requirement that a heating wire of the electric blanket is adjusted to heat intermittently and further to control the temperature is met, the defects of the existing electric blanket temperature control switch are overcome, and electric power consumption is effectively reduced.

The invention discloses a shift register and a drive method thereof. The potential changes of input signals of the shift register can be controlled by a first control signal and a second control signal respectively, so that high level trigger type signal shift and low level trigger type signal shift can be realized by the shift register. Besides, the first control signal and the second control signal are clock signals with the same frequency, integral shift of the signals on the timing sequence can be realized and overlapping shift of the signals on the timing sequence and at different proportions can be realized by setting the different triggering time of the first control signal and the second control signal, that is shift of different manners is realized, so that the shift register can be suitable for various drive modes of flat panel display devices.

The system comprise a alcohol sensor, a voice generating circuit, a speaker, a relay, a vibrating switch, a fan, a resistor, capacitors, diodes, voltage stabilizing triode, triodes, and potentiometer. The resistor R4 and voltage-stabilizing diode VD3 composes a simple stabilizing circuit used for providing power for system; after the alcohol sensor detects the alcohol gas, it triggers the voice generating system to generate voice to warn the car driver not to drive the car and meanwhile triggers the automatically powering off unit to break off the firing circuit of the car.

The invention relates to an energy-saving circuit of electric cooker, for resolving the defects of waste energy in present electric cookers. The invention comprises a main circuit, a direct-current constant voltage power supply circuit, a temperature detecting circuit, a delay circuit, and a driving converting circuit. The invention uses a temperature sensor to collect the temperature of an air outlet of the electric cooker, via the temperature detecting circuit to be converted into direct current level changing along the temperature. When boiling gruel, the temperature detecting circuit outputs high current level to directly drive the main circuit which will hold lower output voltage to keep steaming temperature in the cooker. And when boiling dry food, the high current level output from the temperature detecting circuit will trigger the delay circuit, via the driving converting circuit to cut off the main circuit for some time, and return power when reaches the delay time, to save energy.

The invention discloses a detecting system and a detecting method for a safety testing mode. The detecting system is used for preventing entering the safety testing mode after a chip testing circuit is abandoned. The detecting system for the safety testing mode comprises a time sequence logic control module, a detecting circuit module and a triggering module. The triggering module is used for generating a high-level or low-level triggering signal according to an on-off state. The time sequence logic control module outputs a high-level testing mode signal according to the low-level triggering signal, thereby making a chip enter the safety testing mode, or the time sequence logic control module outputs a low-level testing mode signal according to the high-level triggering signal, thereby making the detecting circuit module output a self-destroying signal for performing a self-destroying operation. Therefore the detecting system for the safety testing mode improves protecting effectiveness for chip sensitive information and accords with a majority of technological realizing requirements. The detecting system can be widely applied to various safety chips.

The present invention discloses an electric vehicle and a brake control method and system thereof. The method comprises the following steps: detecting, by a liquid level sensor, a liquid level of brake fluid to output a liquid level detecting signal; after determining that a normally-closed reed pipe is in a disconnected state and a line fault occurs at the liquid level sensor according to the received liquid level detecting signal, determining that a line fault occurs at the braking system of the electric vehicle, generating a high level triggering signal and issuing a fault alarm reminder according to the high level triggering signal by an alarm unit; and when an overall vehicle controller receives the fault alarm reminder, identifying a fault type of the braking system and performing brake control on the electric vehicle according to the fault type of the braking system. The brake control method can perform fault alarm both when the brake fluid is insufficient and the line fault occurs at the liquid level sensor, and can perform corresponding security protecting control on the electric vehicle by means of identifying the fault type of the braking system, thereby improving the security performance of the electric vehicle and ensuring the travelling safety of the vehicle.

A computer system includes a power supply, a mainboard, and a restart control circuit. The power supply includes a system power source output and a stand-by power source output. The restart control circuit has a first input connected to the system power source output, a second input connected to the stand-by power source output, and an output connected to the mainboard. During an interval of time after the computer system is turned on, the system power source output provides working voltage for the restart control circuit, and the output provides trigger signals at a high level for the mainboard. During an interval of time after the computer system is turned off, the stand-by power source output provides stand-by voltage to the restart control circuit, and the output provides trigger signals at a low level for the mainboard to trigger the computer system to restart.

The invention relates to a fixed-time wireless remote control multiway switch which comprises a transmitting circuit and a receiving circuit. In the transmitting circuit: a high electrical level is generated by an instant pulse generating circuit for triggering a fixed-time pulse generating circuit; the fixed-time pulse generating circuit transmits the high electrical level in fixed time to be taken as the input signal of a final pulse forming circuit after receiving the high electrical level; the final pulse forming circuit is responsible for triggering a transmitting module which transmits signals to the receiving circuit. In the receiving circuit, a power part provides electricity for the whole receiving circuit; a pulse receiving and electrical level transforming part is responsible for receiving the signal transmitted by the transmitting circuit and then decoding the signal after demodulating and transmitting the decoded signal to a drive circuit; the drive circuit drives a relay to work; after the relay is connected, an electricity-using apparatus works; if the relay is disconnected, the electricity-using apparatus does not work. The invention achieves the purposes of multiway real-time control, fixed-time control and wireless ratio-frequency control of the switch.

The invention discloses a cascaded equipment data return method, which is applied to the technical field of communication, and comprises the following steps: starting a return state in response to a data return instruction; when a cascade line input port is at a high level, performing a data return operation; and after the data return is finished, controlling the cascade line output port to outputa high level, so that the cascade line input port of the next stage of cascaded equipment is at the high level in order to trigger a data return operation, and carry out data return. The invention further discloses cascaded equipment, a cascaded equipment data return system and a readable storage medium. Compared with the prior art, the method has the advantages that the lower-level cascaded equipment is instructed to return data step by step through the voltage change of the cascade line, data transmission and monitoring can be effectively carried out on the whole cascaded system, and the operation condition of each piece of cascaded equipment of the whole system can be quickly obtained during overhauling and maintenance; and human resources and cost of operation and maintenance work arereduced.

The invention discloses a self-recovery method of a disabled transmitting terminal of an optical module during an OTDR test, aiming at providing an application that the transmitting terminal of the optical module during the OTDR test performs self-recovery after turning off of a laser because of self protection. The technical scheme of the self-recovery method of a disabled transmitting terminal of an optical module during an OTDR test is implemented through the following steps: setting a micro control unit MCU with self-recovery program software in an optical module, polling the working state of the optical module, and judging whether the displayed fault number of a Fault counter is less than 3 when the self-recovery program software detects that a Fault state occurs in the optical module; if so, automatically entering the interruption program, wherein an MCUI / O interface generates a high level trigger signal and sends the high level trigger signal to a driver chip; at the same time, adding 1 to the displayed fault number of the Fault counter, and recovering the transmitting terminal of the optical module to enable the transmitting terminal to work normally; and if the displayed fault number of the Fault counter is greater than 3, not entering the interruption program, and continuously executing the main program. The self-recovery method of a disabled transmitting terminal of an optical module during an OTDR test utilizes the self-recovery function of the optical module to clear the accidental fault state, so that normal usage of the optical module is not influenced and the later maintenance cost for a system operator and an optical module manufacturer is reduced.

The invention relates to a time sequence control circuit applied to power supplies. The circuit mainly solves the problem that existing time sequence control circuits are complex. The circuit includesa timing circuit body and an enabling circuit body. A switched-on power supply makes the timing circuit body work normally through a three-terminal voltage regulator; when a time value set by the circuit is reached, a timer outputs high level to trigger the enabling circuit body, and the enabling circuit body controls an enabling end of a delay output power supply for output. The time sequence control circuit is simple in structure and reliable and can be applied to the multi-path power supplies.

The invention relates to a device for improving the rising characteristic of the current in the starting process of a stepping motor. The device comprises a pulse and high level triggering device, a switch unit, a trigger pulse stabilizing device, a short time pulse providing device, the stepping motor, a lower voltage source, a high voltage source, a first transistor, a second transistor, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a variable resistor, a capacitor and a 5V voltage source. The voltage switching method is adopted for the device to drive the stepping motor, the stepping motor can be started fast, the response characteristic curve of the stepping motor and the rising characteristic of the current in the starting process of the stepping motor can be improved, and thus the current is closer to a rectangle.

The invention discloses a photosensitive switch infusion bottle automatic alarming device and belongs to medical apparatuses and instruments. A light-blocking plate is arranged in an infusion bottle. A shell body is assembled on the outer side portion of an infusion bottle outer sleeve. A photosensitive sensor module, a high-level trigger type buzzer module and a battery are arranged in the shell body. A photosensitive resistor is assembled on the lower side portion of the infusion bottle outer sleeve. The photosensitive resistor and the battery are respectively connected with the photosensitive sensor module through leading wires. The high-level trigger type buzzer module is respectively connected with the photosensitive sensor module and the battery through leading wires. A sealed light-blocking sleeve is arranged on the bottom of the infusion bottle outer sleeve above the outer side of a bottle cover. A sealed light-blocking zone is formed on the bottom side portion of the infusion bottle. According to the device, hint is given timely before drop infusion is about to end, medical negligence is avoided, and the device has the advantages of being novel and reasonable in structure and good in using safety.

The invention discloses a voice controlled lamp time-delay switching circuit, which is characterized in that a rectifier bridge circuit VD1 and a thyristor VT1 form a switching main circuit, a time delay circuit is formed by an audio control chip U1 and a piezoelectric ceramic piece B1, the piezoelectric ceramic piece B1 picks up an acoustic signal when a user claps the hands or stamps the feet, then the acoustic signal is amplified by a transistor T3, a forward pulse is given out, the forward pulse is coupled to a base electrode of a transistor T2 by a capacitor to enable the transistor T2 tobe instantly conducted, the audio control chip U1 is triggered to operate by the high level of a trigger terminal, an output end outputs a music signal stored in the audio control chip U1, the musicsignal is amplified by a transistor T1 and then injected into a gate pole of the thyristor VT1 to enable the thyristor VT1 to be triggered into operation, the switching main circuit is conducted, a lighting lamp L1 is turned on, and the lighting lamp L1 is turned off when the music signal stored in the audio control chip is completely played. The voice controlled lamp time-delay switching circuitis simple, low in cost, free of programmed control and convenient to implement, and has good application prospects.

The invention provides a power-saving circuit of an electronic device, which is connected between a battery and a host machine. The power-saving circuit comprises a trigger end, wherein the trigger end is used for receiving an external trigger signal and is electrically connected with a switch unit, and the switch unit comprises a control end, a battery end and a host machine end; the control end is electrically connected with the trigger end; the battery end is electrically connected with the battery; the host machine end is electrically connected with the host machine; a selecting module, a high-level trigger module, an N-channel field-effect tube, a relay and a one-way conducting element are arranged in the switch unit; before the trigger end receives a trigger signal, the battery end and the host machine end are in an off state; and after the trigger end receives the trigger signal, the high-level trigger module is used for emitting a high-level signal, and the battery end and the host machine end are converted from the off state into an on state. The electronic device of the invention does not consume power in the off state; and even if the electronic device is in the off state for a long time, the battery still maintains original power.

The invention provides a socket and a code scanning charging device. The socket comprises a control module, a relay and a socket. A display screen is connected with the control module and is used fordisplaying a QR code, so that a user can scan the QR code by using terminal equipment. The control module is connected with a state indicating end of the socket, the control module is connected with the relay, and the control module is connected with a current transformer. The control module outputs a high-level trigger signal to the socket according to a charging request when receiving the charging request sent by the terminal equipment, generates a closing instruction when receiving the high-level trigger signal output by the state indicating end of the socket, and sends the closing instruction to the relay. The relay is then closed, and the socket is connected with a power supply. The technical problem that a safe, reliable and convenient shared charging socket is lacked in the prior art is solved. Construction power utilization and resident power utilization are facilitated, and the potential safety hazard that a power supply is privately and disorderly connected is prevented.

The invention discloses an energy saving circuit, which comprises a power supply circuit, a switch trigger circuit and a detection trigger circuit, wherein the power supply circuit comprises a first power end, a power output end and a control input end, the control input end receives a high level trigger signal and then enables the first power end to be conducted with the power output end, the power output end provides power for an audio / video equipment system, and after the switch trigger circuit is triggered, a high level signal is sent to the control input end; the detection trigger circuit comprises a signal unit, an amplifying unit and a first diode, the signal unit sends the audio / video signal to the amplifying unit, when the signal unit stops sending the audio / video signal, the amplifying unit outputs a low level signal, the first diode is cutoff, and the power supply circuit stops proving power for the audio / video equipment system. Due to the energy saving circuit, the audio / video equipment can be automatically shutdown when the audio / video equipment stops outputting the audio / video signal.

The invention discloses a machine vision light source multifunctional control method which is characterized by including the following steps: when a trigger control mode is selected, a high-level trigger mode and a low-level trigger mode are available, the output parameters (including the duration of output level and the magnitude of output current) of multiple output channels are manually set one by one through an input end connected with I / O modules, and after setting, a trigger operation is performed to realize trigger control; and when a program control mode is selected, a central control unit outputs 38KHz square wave cycle pulse to the output port, and controls the pulse width of the output channel of each I / O module by pre-inputting the value of the duty ratio of high level, so as to realize program control. The invention further discloses a machine vision light source multifunctional controller for implementing the method.

The invention discloses a self-recovery method for the failure of the transmitting end of the optical module in the OTDR test, aiming to provide an application of self-recovery after the laser is turned off due to the self-protection of the transmitting end of the optical module in the OTDR test. The present invention is realized through the following technical solutions: a micro-control unit MCU containing self-recovery program software is set in the optical module, and the working status of the optical module is polled. When the self-recovery program detects that the optical module is in a fault state, Judging whether the Fault counter is less than 3, it will automatically enter the interrupt program, and the MCUI / O port will generate a high-level trigger signal to the driver chip, and at the same time add 1 to the Fault counter to restore the normal operation of the driver chip at the transmitting end of the optical module; if it is greater than 3, Then it does not enter the interrupt program and continues to execute the main program. The present invention clears accidental fault states through the self-recovery function of the optical module itself, which neither affects the normal use of the optical module, but also reduces the post-maintenance cost of the system operator and the optical module manufacturer.

The invention provides a shift register, a driving method, and a gate driving circuit. The shift register includes: a first transistor, a second transistor, a third transistor, a fourth transistor, a fifth transistor, a sixth transistor, a seventh transistor, an eighth transistor, a ninth transistor, a first capacitor, and a second capacitor, And a trigger signal input terminal, a first clock signal terminal, a second clock signal terminal, a first level signal terminal, a second level signal terminal and an output terminal, the trigger signal input terminal receives a high level trigger signal, the The output end of the shift register outputs a high level signal. The shift register occupies a small layout area, which is beneficial to reducing the frame of the display panel.

The invention discloses an intelligent player system and a method of a mobile phone. The intelligent player system and the method of the mobile phone comprise the following steps: step A, a support on the rear cover of the mobile phone is opened so that a magnet is away from a Hall sensor; step B, the Hall sensor is free from the induction of a magnetic field and correspondingly outputs a high electric level to a microprocessor; step C, a central processing unit CPU generates a high-electric-level-triggered interrupt signal according to the high electric level signal, judges that the support is in an opened state, and control a player to play; and step D, the support on the rear cover of the mobile phone is closed, so the magnet is close to the Hall sensor, the Hall sensor is subjected to the induction of the magnetic field and correspondingly output a low electric level to the microprocessor, and the CPU generates a low-electric-level-triggered interrupt signal according to the low electric level signal, judges that the support is in a closed state, and shuts down the player. According to the intelligent player system and the method of the mobile phone, the effect, on the Hall sensor, of the magnetic field of the magnet is utilized, when the support is opened or closed, the Hall sensor correspondingly generates the high electric level or the low electric level and enables the CPU to generate high-electric-level-triggered interrupt or low-electric-level-triggered interrupt in a corresponding mode, so that the player is controlled to be turned on or turned off automatically. According to the intelligent player system and the method of the mobile phone, automatic turn-on and turn-off of player are achieved through the opening and closing of the support, operation and use of a user are greatly facilitated, and the problem that operation procedures of a mobile phone player are complex currently is solved.

The invention discloses an electronic fishing game machine. The electronic fishing game machine comprises a battery, a switch, a button switch, a first potentiometer, a second potentiometer, a first light emitting diode, a second light emitting diode, a first capacitor, a second capacitor, a triode, a loudspeaker, an NE555 time base integrated chip and a voice integrated chip. The clock oscillation frequency can be changed by adjusting the resistance value of the second potentiometer; the first light emitting diode and the second light emitting diode flicker to emit light when a sound is made; when a bait made of a section of small metal rod is placed into a fish mouth within a specified time, the trigger end of the voice integrated chip is triggered by the high level, and the two fish eyes emit light in a stroboscopic mode; and meanwhile, when the loudspeaker makes the sound, it is shown that fish is hooked. By means of the electronic fishing game machine, the NE555 time base integrated chip and the voice integrated chip are used for accurately controlling a game machine circuit, and the sensitivity is high; and meanwhile, the electronic fishing game machine has the beneficial effects of being simple in circuit structure and low in cost.