76 results about "Low-power electronics" patented technology

A DC electronic load circuit relates to the technical field of electronic load control. The utility model provides a direct current electronic load circuit which integrates a dissipation MOS tube array, an analog PID loop, a digital integrated control module, a bus electrical parameter sampling and processing module and a WiFi communication module, and realizes a plurality of working modes such as constant current, constant voltage, constant resistance and constant power by accurately controlling the conduction degree of the MOS tube array. The system has the advantages of real-time monitoring, remote control, overvoltage and overcurrent protection, low power consumption design and the like, and an electronic load solution which is high in precision, high in stability and flexible to operate is provided, so that diversified test requirements are met, and the power supply test efficiency and safety are improved.

The invention provides a quartz crystal microbalance resonant frequency detection system, a control method and a terminal, a direct digital frequency synthesis excitation unit is adopted to generate a frequency sweep excitation signal with a preset frequency range and stepping, and the frequency sweep excitation signal is conditioned by a signal injection and conditioning unit and then injected into a QCM sensor. And then the pure amplitude response detection unit measures and quantifies voltage response amplitudes of the QCM sensor under different excitation frequencies, and the resonant frequency intelligent determination unit determines the resonant frequency of the QCM sensor according to the voltage response amplitudes. According to the invention, a QCM self-oscillation circuit does not need to be designed and debugged, a precise phase detection assembly does not need to be configured, the circuit board layout is simpler, and components are greatly reduced. The QCM resonant frequency can be accurately measured only through efficient amplitude detection, a complex algorithm is avoided, the operational capability requirement and the software development difficulty are reduced, the QCM resonant frequency measuring device has the advantages of being simple in structure, low in cost, easy to integrate and the like, miniaturization and low-power-consumption design can be easily achieved, and the QCM resonant frequency measuring device is suitable for portable and wearable application.

The utility model discloses a terrestrial magnetism acquisition device, and belongs to the field of instruments and meters. A shell of the geomagnetic acquisition device is of a cylindrical sleeve structure and comprises a top cover, a middle section and a bottom cover. The battery is arranged between the bottom cover and the middle section; the bracket is arranged above the battery and is positioned in the top cover; the PCB is arranged on the bracket and is connected with the battery; the geomagnetic sensor is arranged on the PCB and is used for collecting geomagnetic signals; the communication unit is arranged on the PCB and used for outputting geomagnetic signals. A cylindrical sleeve structure is adopted to improve the system protection level and facilitate mounting and dismounting; the low-power-consumption design ensures that the long-term outdoor working time is more than 10 years, and the maximum power consumption during working is only 2mA; the geomagnetic sensor collects magnetic field data in real time, the magnetic field data is processed by the communication unit and then output and uploaded to the cloud, efficient collection and transmission of the geomagnetic data are achieved, and the overall performance of the system is improved.

The invention discloses a method for inserting a power switch unit and a string chain in a digital back-end low-power-consumption design, and the method comprises the step of inserting the power switch unit and the string chain in a general script form, and comprises the following steps: inserting the power switch unit in a whole power domain capable of being turned off; inserting the power switch unit in the channel area where the power switch unit is not inserted; the main body power switch units are connected in series; and the channel or the user-defined rectangular area power switch unit is strung. The method can solve the problem that the power domain in an irregular shape or the power domain containing a plurality of channels is difficult to string, is suitable for string of power switch units of different structures, and improves the working efficiency.

The embodiment of the invention discloses a lightweight indoor and outdoor position mark management method and system based on RFID, and is especially suitable for the field of cleaning service management. According to the method, a cleaning worker carries a portable terminal, and the portable terminal is close to a pre-deployed electronic tag to mark that the portable terminal arrives at a designated position, so that digital management of cleaning work is realized. According to the system, the mapping relation between the electronic tag and the self-defined position information is established, the terminal reads the tag identifier, generates a data packet containing the personnel identity and the timestamp and uploads the data packet to the server, and the server analyzes the data packet to generate an accurate position record for an administrator to check. According to the invention, event-driven and low-power-consumption design is taken as a core, accurate marking is realized through position information completely customized by a user, the method has the advantages of low deployment cost, no need of exposing a real geographic position, long terminal endurance and accurate and reliable marking, and the problem that the working track of a worker in cleaning service management is difficult to check accurately in real time is effectively solved.

The invention belongs to the technical field of industrial automation instruments, and particularly relates to a self-powered temperature transmitter, which comprises an explosion-proof cast aluminum shell, a circuit board and a lithium battery, and is characterized in that the circuit board comprises a microcontroller MCU, a signal conditioning circuit, an analog-to-digital converter ADC, a power management circuit and a display driving circuit; the average working current of the whole machine is reduced to a microampere level by adopting multi-stage low-power-consumption design such as an ultra-low-power-consumption MCU, a low-quiescent-current power supply chip, a programmable sampling interval and intelligent backlight control, and the theoretical endurance time can reach several years in cooperation with a high-capacity lithium battery, so that the constraint of an external power supply and a cable is thoroughly eliminated; according to the technical scheme, signal range adaptation is achieved through a programmable gain amplifier on hardware, a full-scale linearization algorithm is built in software, various common industrial temperature sensors such as Pt100, Cu50, K, S, E, J, T and N can be compatible only through panel key selection, and the universality and field applicability of equipment are greatly improved.

The application belongs to the technical field of low power consumption, and particularly relates to a low power consumption design method and device with adaptive voltage regulation. The method comprises the following steps: 1) simulating a key path of an analog-digital circuit, wherein the key path refers to a path with the maximum delay in the digital circuit; 2) generating a test clock signal and a sampling clock signal, and inputting the generated test clock signal into the key path; 3) detecting the output signal of the key path by using the sampling clock signal with the same sampling time and / or different sampling times, and controlling and adjusting the power supply voltage of the digital circuit according to the detection result, so as to determine the minimum power consumption voltage for ensuring the normal operation of the digital circuit. The application uses the key path to represent a complex load, and has simple structure and wide application range. The power supply voltage of the circuit is controlled and adjusted according to the voltage detection result, so that the control precision and the adjustment efficiency are improved, the minimum voltage for ensuring the normal operation of the circuit is determined, and energy saving is achieved.

The invention discloses a belt longitudinal tearing detection method and device, and belongs to the technical field of belt detection. Aiming at a series of safety problems possibly caused by longitudinal tearing of a belt in a complex environment of an underground coal mine, whether the belt is torn or not is judged by detecting the on-off state of a metal wire buried in the belt, the running condition of the belt can be monitored in real time, potential tearing hidden dangers can be found in time, and the safety of the belt is improved in a wireless communication mode. And belt data is uploaded to a corresponding main controller, and corresponding measures are taken for processing. In addition, the invention provides a wireless power taking and product low power consumption design mode to carry out system overall optimization, a single-battery or battery-free scheme is realized, and the working time of equipment can be ensured to be not less than 5 years. In this way, it can be guaranteed that the belt is in a good running state all the time, continuity and stability of coal transportation are guaranteed, and therefore the overall production efficiency and production safety of a coal mine are improved.

The application relates to a low-power-consumption designed navigation baseband chip and a running method thereof, the navigation baseband chip is composed of a software end and a hardware end, the hardware end comprises a capture module, a tracking module and a decoding module; the software end comprises a capture tracking control module and a PVT solving module. The tracking module and the decoding module of the hardware end can automatically complete the message text framing and the multi-path parallel message text decoding operation according to the configuration parameters written by the software end, the processing and consumption of integral quantity data of the software end are reduced, the equipment power consumption of the navigation baseband chip is reduced, and the real-time performance of data processing is improved under the condition of ensuring the unchanged normal tracking performance.

The invention relates to a navigation baseband chip with low power consumption design and an operation method thereof, the navigation baseband chip is composed of a software end and a hardware end, and the hardware end comprises a capture module, a tracking module and a decoding module; the software end comprises a capture tracking control module and a PVT resolving module. Wherein the tracking module and the decoding module of the hardware end can automatically complete telegraph text framing and multi-path parallel telegraph text decoding operation according to configuration parameters written in by the software end, so that the processing consumption of the software end on integral quantity data is reduced, the equipment power consumption of a navigation baseband chip is reduced under the condition of ensuring that the normal tracking performance is not changed, and the reliability of the navigation baseband chip is improved. And the real-time performance of data processing is improved.

The utility model relates to the technical field of current acquisition circuits, in particular to a current acquisition circuit based on non-intrusive power load monitoring, which comprises a high-end current acquisition circuit and a low-end current acquisition circuit connected through a step-down circuit, and is characterized in that the high-end current acquisition circuit comprises an amplifier U1, a resistor R1, a resistor R2, a resistor R4 and a resistor R7; and the low-end current acquisition circuit comprises an amplifier U2, a resistor R3, a resistor R6 and a resistor R8, and the resistor R8 is connected in series with a field effect transistor Q2. The current acquisition circuit generally has the characteristic of quick response, can capture current change information in time, adopts a low-power-consumption design to facilitate long-time stable work, generally adopts an integrated circuit design, and has the advantages of small size, low cost, easiness in integration and the like.

The present invention discloses an AD sampling control circuit and bathroom equipment. The present invention relates to the field of AD sampling technology. The circuit includes: a sampling module, a sampling control module and an isolation module; the sampling module includes a first and a second voltage divider unit; the sampling control module is connected in series between the output end of the first voltage divider unit and the input end of the second voltage divider unit; the input end of the first voltage divider unit is electrically connected to a voltage source; the output end of the second voltage divider unit is grounded; the output end of the first voltage divider unit is connected to the control end of the isolation module; the voltage source is connected to an external load module through the isolation module; the sampling control module receives and controls whether to output a sampling voltage signal to the second voltage divider unit according to a sampling enable signal; and also controls the first voltage divider unit to output different node voltage signals according to the sampling enable signal; the isolation module outputs an isolation signal according to different node voltage signals. This solution achieves accurate AD sampling detection and also realizes a low-power design in standby mode.

Proposed is a remote metering system using an ultrasonic water meter, which can minimize power consumption by adopting a low power wide area communication network and a low power design optimized for a power usage according to a transmission cycle when metering data is transmitted by radio so as to extend a replacement cycle of a battery, thereby minimizing maintenance costs due to battery replacement.

The invention discloses a telemetering terminal and a telemetering system thereof, and relates to the technical field of communication, the telemetering terminal and the telemetering system are included, the telemetering terminal comprises a sensor module, a data processing module, a control module, an RS422 output interface, a wireless communication module, a data storage module, a clock module, a man-machine interaction module and a power management module; the telemetering system comprises a plurality of telemetering terminals, a gateway and a remote server. Data transmission is stable and reliable, and the problems of unstable data transmission, high power consumption and the like can be effectively solved by adopting a low-power-consumption wide area network communication technology; the system is convenient to install and maintain: a wireless transmission mode is adopted, wiring is not needed, and installation and maintenance are convenient; the system is low in cost, and the low-power-consumption design is adopted, so that the system cost can be effectively reduced.

The invention discloses a successive approximation type analog-to-digital converter based on charge pump quantization range doubling, which improves a grid voltage bootstrapped switch for sampling and innovatively designs a passive reference voltage booster circuit, a capacitor in the grid voltage bootstrapped switch is divided into two parts, the two parts are charged in parallel and then connected in series, and the two parts are connected in parallel. The grid voltage of the sampling tube can be bootstrapped to two times of power supply voltage; according to the passive reference voltage booster circuit, two capacitors with the same capacitance value are firstly charged to power supply voltage and then connected in series end to end, and the generated voltage value is double power supply voltage and serves as reference voltage for ADC quantization. According to the invention, the ADC can correctly quantify an input signal of which the amplitude is two times of the power supply voltage under the condition of low power supply voltage power supply, the application range of the low-voltage ADC is expanded, the collaborative design of an analog circuit and a digital circuit in the ADC under an advanced process node is met, the full-dynamic design is realized, the quiescent current is eliminated, and the method is also suitable for the design of the low-power-consumption ADC.

This invention discloses an op-amp-free high-precision bandgap reference circuit, belonging to the field of analog circuits. It generates a high-precision reference voltage and detects the completion of the reference voltage startup, outputting an enable signal to control the internal startup logic of the analog circuit, thus completing the timing control of the circuit startup process. The op-amp-free high-precision bandgap reference circuit includes a startup circuit, a reference core circuit, and a reference detection circuit. The startup circuit provides a startup current to the bandgap reference, enabling the reference core circuit to start working. The reference core circuit generates a high-precision reference output voltage. When the bandgap reference successfully starts up, the reference detection circuit outputs a high signal to enable subsequent modules. This invention offers a lower starting operating voltage; it eliminates op-amp clamping, avoiding offset introduced by op-amps and the need for high op-amp gain; and its simple circuit structure allows for a low-power design of the entire bandgap reference.

The application provides a spaceborne optical imaging load, comprising a short-wave camera connected with an on-board processing unit, a data transmission and storage unit and a comprehensive electronic unit; a long-wave camera connected with the on-board processing unit, the data transmission and storage unit and the comprehensive electronic unit; an instrument management and power supply box connected with the short-wave camera, the long-wave camera and the comprehensive electronic unit and a power distributor; and a refrigerator electric control box connected with the short-wave camera, the long-wave camera, the instrument management and power supply box and the power distributor. The application realizes camera focusing through temperature control means, realizes functions such as on-orbit adjustment of camera imaging polarity, generation of test pattern simulation targets, detector temperature protection and refrigerator driving protection, and realizes lightweight and low-power consumption design, reduces the resource demand of the spaceborne optical imaging load on various satellite platforms, and improves the flexibility and fault tolerance capability of on-orbit use.

The utility model discloses a low-power-consumption balance valve, and belongs to the technical field of intelligent heat supply. Comprising a shell, a control panel, a sensing plate, a motor actuator, a battery and a valve body, the shell is divided into an upper shell and a lower shell, the valve body, the motor actuator and the control panel are fixed to the lower shell, the sensing plate is fixed to the motor actuator, and the control panel comprises a voltage stabilizing circuit, a single chip microcomputer, an indicator lamp, a communication module and a Hall switch. The sensing plate comprises an angle potentiometer and a travel switch. The battery is used for supplying power, the circuit board adopts low-power-consumption design, the valve opening degree remote control function is achieved, two-network balance regulation and control in the heat supply field can be participated, and the practical value is high.

The invention belongs to the technical field of communication, and particularly relates to a low-power-consumption single-bus communication encryption chip and an encryption authentication system. Comprising an interface circuit; the invention relates to a digital control circuit, which comprises a digital control circuit, a power-on reset circuit, a power-on reset circuit, a clock circuit, a data decoding circuit and a code modulation circuit, and is characterized in that the data decoding circuit is used for decoding data received by a PA (power amplifier) port and then outputting demodulated data to the digital control circuit; the coding modulation circuit is used for coding and modulating the modulation data sent by the digital control circuit and then outputting the modulation data to the PA port; a digital control circuit, an encryption algorithm circuit and a memory. Based on a low-power-consumption design technology, proportional code level transmission and communication time sequence optimization, the problem that an external energy storage capacitor needs to supply power when a single chip realizes an encryption authentication function is too high in power consumption is solved.

The utility model discloses a timing system based on Internet of Things, comprising a clock circuit module used for generating a stable clock signal; the counter circuit module is electrically connected with the clock circuit module, receives the clock signal, counts, and outputs a trigger signal when the count reaches a preset threshold value; the control output circuit module is electrically connected with the counter circuit module, receives the trigger signal and controls the on-off state of the controlled equipment according to the trigger signal; according to the utility model, through the hardware circuit modules and the electrical connection between the hardware circuit modules, the timing control function without depending on software programs is realized, and the reliability and the stability of the system are obviously improved. The low power consumption design reduces the operation cost, and the expandability of the system enables the system to easily meet the independent timing control requirements of a plurality of controlled devices.

The embodiment of the invention provides an Internet of Things valve controller based on airflow self-power generation and a control system. The controller comprises a valve executing mechanism, a main control circuit board, an airflow power generation module and an energy storage battery. The airflow power generation module pushes permanent magnet fan blades to rotate through airflow in a pipeline, power is generated in a coil according to the electromagnetic induction principle, and electric energy is output after rectification and voltage stabilization. The main control circuit board integrates an ultra-low power consumption MCU, a Bluetooth and CAT1 communication module and a power management circuit. The system enters an extremely low power consumption standby mode when no airflow exists; when airflow passes through, electric energy generated by the power generation module instantly wakes up the system, so that the CAT1 module is immediately connected with the cloud platform and reports state information; in the gas using period, power generation energy is preferentially supplied to the system for operation, surplus electric energy is used for charging the battery, through the airflow self-power-generation and extreme low-power-consumption design, the industrial problems that a traditional internet-of-things valve controller is short in battery endurance and low in reliability are effectively solved, and the ultra-long service life and high reliability are achieved.

The invention provides a miniature synchronous infrared correlation device, and relates to the field of infrared sensing. The miniature synchronous infrared correlation device comprises a transmitting module and a receiving module, the transmitting module comprises a miniature infrared transmitter, a signal modulation circuit and a power management circuit, and the miniature infrared transmitter is used for transmitting infrared signals. According to the miniature synchronous infrared correlation device, the patch infrared lamp beads are adopted, the size is small, installation and hiding are convenient, the miniature synchronous infrared correlation device is suitable for various narrow spaces, an infrared scanning mode is adopted, only one pair of infrared receiving and transmitting work is conducted at the same time, the power consumption is 1 / N of that of conventional infrared, the power consumption is low, the service life of equipment is prolonged, and the maintenance cost is reduced; the design of a synchronous circuit improves the stability and reliability of signal transmission and reduces the false alarm rate, an infrared transmitting and receiving window adopts an infrared light transmitting material, the influence of external environment light is reduced, a signal amplification circuit and AD sampling are digitized, detection counting of tiny objects is facilitated, and a counting alarm threshold value is dynamically modified.

Systems and methods for peel-off detection for lower power electronics are disclosed. In one embodiment, a device includes: a housing; sensor electronics disposed within the housing; an electrode positioned to receive a charge and output a control signal upon removal of a material positioned proximate to the electrode; an electronic switch configured to control an electrical connection between a power supply and the sensor electronics; and an amplifier electrically coupled to the electrode and configured to receive the control signal from the electrode and output an amplified signal to change a state of the electronic switch based on the control signal.

The application discloses a successive approximation analog-to-digital converter based on charge pump quantization range doubling, which improves the gate voltage bootstrap switch used for sampling and innovatively designs a passive reference voltage boosting circuit, wherein the capacitor in the gate voltage bootstrap switch is divided into two parts, is charged in parallel first and then in series, and can bootstrap the gate voltage of the sampling tube to 2 times of the power supply voltage; the passive reference voltage boosting circuit generates a voltage value of double power supply voltage by charging two capacitors with equal capacitance to the power supply voltage and then connecting them in series at the head and tail, and uses the voltage value as a reference voltage for ADC quantization. The application realizes that the ADC can correctly quantize an input signal with an amplitude of 2 times of the power supply voltage under the condition of low power supply voltage, expands the application range of the low-voltage ADC, meets the collaborative design of the analog circuit and the digital circuit in the ADC under an advanced process node, realizes full dynamic design, eliminates static current, and is also suitable for low-power ADC design.

The application discloses a small portable underwater positioning signal generating device, which comprises a signal generating and emitting circuit, the signal generating and emitting circuit comprises three logic gates, four capacitors, eight resistors, nineteen transistors, a power supply, a water entry detection sensor, a transformer and an ultrasonic transducer, no programmable processor, crystal oscillator and other complex circuits are used, the device used is less, and no complex programming and burning work is needed; meanwhile, the pulse frequency and the emission frequency of the ultrasonic signal can be quickly tuned through internal resistance, low-power consumption design is adopted at multiple places, and the primary coil of the transformer cannot be directly connected with the power supply to cause instantaneous short circuit; the device has the advantages that miniaturization and low cost are combined, the device is convenient to carry by personnel and small target objects, positioning is carried out through emission of ultrasonic signals, high positioning precision is achieved, after the personnel and the small target objects fall into water, high-precision falling position coordinates of the personnel and the small target objects can be provided, the rescue time is shortened, and the rescue success rate is improved.

The utility model relates to the technical field of discharge lamp power supply, disclose a kind of self-adapting frequency modulation low-power electronic ballast, including ballast equipment, the front and back side of ballast equipment is provided with heat dissipation mechanism, the bottom of ballast equipment is provided with protective shell, the inside of protective shell is provided with protection mechanism, the bottom wall left and right sides of protective shell are provided with mounting mechanism;The heat dissipation mechanism includes two heat-conducting shells, the adjacent side of two The heat-conducting shell is respectively arranged at the front and back side of ballast equipment, and the left and right sides of ballast equipment are threadedly connected with a plurality of mounting bolts.In the utility model, heat exchange is carried out by contacting multiple heat dissipation fins with air, and the spacing between multiple heat dissipation fins is expanded by rotating the heat dissipation fins, achieving the purpose of improving heat dissipation effect and avoiding the situation that the service life of the ballast is reduced due to the entry of dust particles into its interior.

The invention discloses a multi-mode low-power-consumption long-distance falling-into-water positioning talkback device in the technical field of rescue equipment. The multi-mode low-power-consumption long-distance falling-into-water positioning talkback device comprises a microprocessor, a power management module, a wireless communication function unit, an alarm function unit, a positioning function unit, an interaction function unit and a voice talkback function unit. According to the invention, a 4G and LoRa dual-mode communication technology and a software and hardware combined low-power-consumption design are adopted, an improved SPEEX voice compression and decompression technology is adopted, and a Beidou satellite positioning technology is combined; the posture of a drowning person is monitored in real time, an alarm system is automatically triggered when the posture is abnormal, rescue requirements are quickly responded, and rescue timeliness and personnel safety guarantee are improved.

The embodiment of the utility model discloses a simple sensing alarm device for bridge monitoring, which relates to the technical field of bridge monitoring, can further reduce the cost of monitoring equipment, and particularly can realize bridge monitoring alarm by directly utilizing relatively cheap component materials in the current market. And the structure is simple enough so as to be easy to produce and install. A vibration-inclination angle-temperature sensing unit is integrated in the device in the scheme, multi-parameter data of a bridge can be measured at the same time, and comprehensiveness and accuracy of the data are ensured; the data acquisition and transmission process is simplified through integrated design, and the system integration level and the use convenience are improved; low-power-consumption design is combined with solar power supply, long-term stable operation of equipment is guaranteed, and maintenance cost is reduced; meanwhile, through a built-in edge algorithm, a three-level early warning mechanism with an adjustable threshold value is provided, and the timeliness and reliability of bridge safety monitoring are effectively improved.

The utility model discloses a sensor data acquisition device based on LoRa technology, and relates to the technical field of unmanned aerial vehicles. Comprising a circuit board and further comprises an STM chip, the bottom of the STM chip is welded to the inner wall of the circuit board through soldering tin, a sensor data acquisition module is welded to the inner wall of the circuit board through soldering tin, and a lithium battery charging and discharging module is welded to the inner wall of the circuit board through soldering tin. The charging and discharging process is intelligently and reasonably controlled according to the electric quantity of the battery, the stable power supply of the device is ensured, the energy consumption of the device is greatly reduced and the endurance time of the unmanned aerial vehicle is prolonged in combination with low-power-consumption designs such as optimization of the acquisition frequency and the sleep mode, and the data acquisition device achieves the purpose of a sensor data acquisition device based on the LoRa technology.

The invention provides a chip low-power-consumption design simulation verification method and device, a medium and equipment, and the method comprises the steps: inputting a chip function design code and a corresponding chip low-power-consumption design code into a simulation model, so as to obtain a simulation chip; obtaining a simulation model output isolation value information report; the script file automatically extracts the power-off feature information of the target object from the isolation value information report, the power-off feature information is more comprehensive and perfect, the possibility of omission is reduced, and the labor cost is saved. By monitoring the simulation signal, the effective time point of the isolation signal is accurately positioned, the accuracy of a related simulation value sampling result and a verification conclusion is ensured, and the efficiency and the accuracy can be considered at the same time.