95 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.

A cooling system and method of cooling electronic components comprising a tank (or other vessel) in which a dielectric liquid cools low power electronic components within the tank, while a conductive liquid cools high power electronic components in the tank. The conductive liquid is supplied via a plurality of cooling modules, each arranged on or in proximity to a high power component. A cooling module arranged within the tank may enclose one or more of the electronic components in the tank using a fluid-tight seal.

The invention relates to the technical field of power batteries, and discloses a multi-mode timing wake-up system and method for a battery management system, and the method comprises the steps: 1, setting four wake-up modes according to the state of a vehicle, and respectively setting a trigger condition and an operation mode in the corresponding mode; 2, collecting the parameter change state of the wake-up source in real time, and judging whether the trigger condition of each mode is met or not; step 3, when the triggering condition is met, correspondingly switching to an awakening mode to control the battery management system according to a set operation mode; and when a plurality of modes are met at the same time, performing priority ranking on the wake-up modes, and preferentially switching to the mode with higher priority. Through a dynamic priority preemption mechanism, a parameter adaptive algorithm and a low-power-consumption design, the defects of a traditional BMS fixed wake-up strategy are optimized, and more efficient battery management is achieved.

The invention discloses a low-power-consumption design method for a digital integrated circuit. According to the design method, the low-power-consumption design target of the digital integrated circuit is achieved by adjusting the input signal probability of the digital integrated circuit. According to the power supply voltage of the digital integrated circuit and the input signal probability, and the combined effect of the power supply voltage and the input signal probability on the aging delay of the digital integrated circuit, the low-power-consumption design target of the digital integrated circuit is achieved. The design method comprises the following steps: establishing an input signal probability propagation model of the critical path of the digital integrated circuit, and measuring and calculating the input signal probability of each logic gate standard unit on the critical path. And constructing an aging delay prediction model of the digital integrated circuit, and predicting the aging delay of the digital integrated circuit according to the input signal probability of the standard unit on the critical path.

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 invention provides a wireless cable tension measuring system in integrated measurement and adjustment construction, wherein the cable passes through a Martindike, a ground pulley and a sky pulley in sequence, the sky pulley contacts an elastic body component through a strut, the lower part of the strut is inserted into a pulley seat, and the pulley seat is connected to a wireless tension sensor; a bearing body is installed in the inner cavity of an outer shell, an elastic body component is installed in the bearing body, the lower part of the outer shell is connected to an end cover, the end cover and the lower part of the inner shell form a closed space, a circuit bracket is installed in the closed space, a processing circuit is installed on the circuit bracket, the processing circuit is connected to an antenna, and the processing circuit is plugged into a battery; the advantages are: the invention measures the pressure of the sky pulley through a wireless tension sensor to obtain the tension value of the cable, reduces the number of bending times of the cable, increases the service life of the depth metering wheel and the cable, and improves the measurement accuracy; adopts an integrated design, the mechanical structure is firm, reliable and not easy to be damaged; adopts a low power consumption design, and is easy to use.

The system is an intelligent device for preventing and treating campus speech bullying and dirty speech scenes, sound is collected through a high-sensitivity directional MEMS microphone, a voiceprint recognition module extracts an MFCC coefficient and differential characteristics by using a librosa library, after Z-score standardization, a pre-stored voiceprint model is matched through a DTW algorithm with path constraint, and the MFCC coefficient and the differential characteristics are subjected to Z-score standardization. The integrated dirty speech recognition module constructs a dynamic multi-language lexicon (including dialects), and adopts an optimized KMP algorithm and semantic analysis to recognize improper speech. And when a dirty call is detected, the feedback module plays a warning sound through the self-adaptive volume loudspeaker and sends an alarm to the server. And the data recording module is used for locally storing data through the SD card and encrypting and transmitting the data through the Wi-Fi module. The one-key alarm physical key supports long-press triggering, pushes notifications containing positions and time and carries out voice confirmation. The equipment adopts a low-power-consumption design, the weight is less than or equal to 80g, ergonomic wearing modes such as a hanging wearing mode and a brooch type are provided, and endurance and comfort are both considered.

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 discloses an application circuit low-power-consumption design optimization method and a related device, and relates to the technical field of electronic information. Comprising the steps of obtaining position information, a first netlist file, a constraint condition and a first simulation calculation result of a carbon nanotube distribution device with standard density in an initial layout and wiring result; if a path of which the delay is greater than the target delay in the constraint file exists in the first simulation calculation result, replacing a carbon nano tube distribution device with a standard density on a key path with a carbon nano tube distribution device with a higher density and a first density, so as to reduce the path delay and improve the working frequency of the circuit; if it is found that the carbon nano tube distribution device with the power consumption larger than the target power consumption in the constraint file exists in the second simulation result, the carbon nano tube distribution device with the second density lower in density is used for replacing the carbon nano tube distribution device with the standard density on the non-critical path so as to reduce the overall power consumption.

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 relates to the technical field of industrial automation, and discloses a combined low-power-consumption communication sensing device, and the device comprises a protection housing which is provided with an opening and closing plate at one side; the first butt-joint plate is installed in the protective shell, a second butt-joint plate is arranged at the bottom of the first butt-joint plate, and a sensor is arranged between the first butt-joint plate and the second butt-joint plate; the butt-joint assembly is installed between the first butt-joint plate and the second butt-joint plate and used for rapidly detaching and replacing the sensor; the PLC module is installed between the first butt joint plate and the second butt joint plate and used for intelligent control over equipment, and the PLC module comprises a low-power-consumption design module, a modular sensor module, a wireless communication module, a central control module and a safety and privacy module. Through the central control module, the equipment can still keep high-precision data acquisition and analysis capability in a low-power-consumption mode, the accuracy and timeliness of key data are ensured, and the equipment can be stably applied to the fields with high reliability requirements in long-endurance Internet of Things application scenes.

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 invention relates to the technical field of power line communication, in particular to a modem module, an intelligent control system and a control method based on a direct-current low-voltage power line carrier, and provides the modem module, the intelligent control system and the control method based on the direct-current low-voltage power line carrier. The requirements of independent communication lines are reduced by utilizing the power line carrier technology, and the overall wiring and installation cost is reduced. Due to the low-power-consumption design and the efficient communication modulation mechanism of the system, the energy consumption of system operation is effectively reduced.

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 design method for improving radar reliability based on FMECA. The method comprises the steps of dividing a system FMECA agreed level, a fault criterion and a severity level; aiming at antenna transceiving, servo control, information processing, control and display function faults, a scheme is selected to improve the reliability, and an analog simulation test is carried out to verify the effect; radar hardware design key points are determined, and low-power-consumption design and hardware redundancy design measures are adopted; radar software design key points are determined, the problems of deep coupling and large-area crash of software and hardware are solved, and health management software is designed to realize task migration and reconstruction; according to the process FMECA data of the existing product, obtaining the process failure mode, reason, severity grade and detected difficulty information, carrying out a reliability enhancement test, exciting and exposing the process defect in the module processing process, and adopting a corresponding improvement scheme in the processing process; in the testing and using process, FMECA iteration is carried out, and the radar reliability is improved.

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.