37results about How to "Low power operation" patented technology

The invention discloses a wearable device based on semiconductor multi-parameter physiological signal monitoring and a control method thereof, and belongs to the technical field of physiological signal acquisition, the wearable device comprises a wearing bracelet, the inner wall surface of the wearing bracelet is provided with a mounting groove; the integrated main body is arranged in the mounting groove, and at least two semiconductor sensors for monitoring different physiological signals are integrated on the integrated main body; the flexible collecting part is fixedly attached to the inner wall surface of the wearing bracelet, and a plurality of sweat collecting points which are uniformly distributed at intervals are arranged on the surface of the flexible collecting part. According to the wearable device and the control method thereof, physiological signals such as the heart rate, the blood pressure and the blood oxygen saturation degree and information such as the electrolyte concentration in sweat can be accurately collected, convenient, efficient and comprehensive health monitoring is provided, and a user is helped to know the physical condition of the user in real time.

The invention relates to the technical field of cable circulation current monitoring, in particular to a time-sharing self-powered cable circulation current monitoring device, which comprises a CT (Current Transformer) energy taking module comprising a current transformer and a rectifying circuit; the energy storage module comprises an energy storage capacitor and a charging comparator; the current signal processing module is used for dividing the voltage of the output end of the rectifying circuit and weakening the error amount of the pulsating direct current signal by outputting a first current value and a second current value; a 4G module; and the main controller is used for determining the current measurement value of the cable, adjusting the current monitoring frequency of the current transformer according to the fluctuation value of the current measurement value, and determining whether to adjust the transmission power of the current measurement value transmitted from the 4G module to the background or adjust the amplification gain of the pulsating direct current signal according to the number of abrupt change points in the current change image. According to the invention, the monitoring precision and the monitoring range are increased.

The invention relates to the technical field of OLED micro-displays, and discloses a temperature sensor calibration and external temperature compensation method for an OLED micro-display, and the method comprises a temperature compensation parameter storage module which is used for storing the temperature calibration data of the OLED micro-display through a one-time programmable memory OTP. According to the temperature sensor calibration and external temperature compensation method for the OLED micro-display, the actual working temperature Tactual is calculated by using the current temperature register value REG1 measured by the temperature sensor and factory calibration data T0 and REG0, the brightness change is compensated by adjusting the common voltage Vcom in real time, and the temperature of the OLED micro-display is compensated by combining a temperature compensation formula. The brightness of the display is accurately controlled by adjusting the electric field intensity, the Vcom is improved in a low-temperature environment to compensate brightness reduction, and the Vcom is reduced in a high-temperature environment to prevent excessive light emission or thermal damage, so that the problem of inconsistent display effects in long-term use is solved, and the user experience is improved.

The application belongs to the technical field of marine chemical analysis, and relates to an underwater in-situ mass spectrometer acquisition control system and method. The method comprises the following steps: a vacuum extraction step: the coarse extraction mode and the fine extraction mode are adaptively switched, the ion detection device is vacuum-extracted until the pressure is reduced to a preset threshold, and a required vacuum degree is maintained; a preheating preparation step: the membrane sampling device is initially sampled, and heating is performed at the same time until a preset working temperature is reached and the temperature is maintained constant; a dissolved gas formal detection step: the membrane sampling device is continuously supplied with water samples to be detected, and in-situ mass spectrum detection of dissolved gas in the water samples is completed; an instrument cabin gas discharge step: when it is detected that the underwater in-situ mass spectrometer floats to the water surface and the air pressure in the instrument cabin exceeds an upper limit threshold of gas discharge, the instrument cabin is discharged; a liquid leakage protection step: when liquid leakage occurs in the sampling cabin and the two core contacts are short-circuited, the high-pressure electromagnetic valve in the normally open state is closed to quickly block the liquid from entering the ion detection device.

This invention discloses a miniature flow sensor and an on-chip constant temperature difference control circuit for the flow sensor. The circuit includes a first resistor, a second resistor, an ambient resistor, an adjustable resistor, a micro-heater, an operational amplifier, a start-up resistor, and a start-up power supply. The ambient resistor and the micro-heater have the same temperature coefficient. One end of the first resistor is connected to one end of the second resistor and the output terminal of the operational amplifier. The other end of the first resistor is connected to one end of the start-up resistor, one end of the adjustable resistor, and the positive input terminal of the operational amplifier. The other end of the second resistor is connected to one end of the micro-heater and the negative input terminal of the operational amplifier. The other end of the start-up resistor is connected to the positive terminal of the start-up power supply. This constant temperature difference control circuit effectively maintains a constant overheating temperature of the micro-heater, thereby achieving a wide measurement range, low power consumption operation, and suppressing drift caused by ambient temperature, significantly improving the accuracy of the measurement results.

This invention relates to the field of blockchain technology and discloses a Merkle tree hardware acceleration system for blockchain data verification. The system includes a control module for coordinating and controlling various modules; an address generator for generating addresses of sibling and parent nodes in the Merkle tree based on the indices of the input leaf nodes; a storage unit for storing the leaf, internal, and root node data of the Merkle tree; a computation module for performing data concatenation, hashing, and comparison on the Merkle tree nodes based on the addresses provided by the address generator, and generating intermediate and verification results; and a buffer for temporarily storing node data read from the storage unit and intermediate results output by the computation module. This invention designs a hardware acceleration architecture tailored to the structural characteristics of Merkle trees, improving the computational efficiency of blockchain data verification, achieving low-power operation, and is suitable for the performance requirements of various blockchain application scenarios.

The utility model discloses a series power supply formula low -power consumption television receiving antenna signal amplifier circuit, including UHF signal input terminal anti -static and strong pulse circuit (1), UHF channel filter circuit (2), first -stage UHF channel amplification unit (3), second -stage UHF channel amplification unit (4). Further including amplifier UHF and VHF channel hybrid output circuit (11), VHF signal input terminal anti -static and strong pulse circuit (8), VHF channel filter circuit (9), power supply input rectifier filter circuit (6), voltage stabilizing and decoupling circuit (5), decoupling voltage division's front -stage series power supply circuit (7) and VHF amplification unit (10). Or including RF signal input channel filter circuit (13), first -stage RF channel amplification unit (14), second -stage RF amplification unit (15) and decoupling voltage division's front -stage series power supply circuit (7). The utility model discloses through series power supply mode, make the total current of amplifier equal the current of second -stage amplification unit, relative parallel type circuit saves nearly 50% power consumption, reduces the requirement to transformer power, thereby reduces the cost.

The invention relates to the technical field of power consumption adjustment of security and protection monitoring equipment, and discloses a power consumption adjustment algorithm of security and protection monitoring battery driving equipment based on weather forecast, which comprises the following steps: acquiring weather forecast data of an area where the equipment is located, analyzing the weather forecast data, and calculating the power consumption of the equipment according to weather condition information. Determining a target working mode of the equipment, controlling the equipment to operate according to the target working mode, monitoring the battery voltage of the equipment, and automatically starting the equipment when detecting that the equipment is connected to external charging input; according to the invention, by introducing the weather forecast information, the equipment can be adjusted to a working mode matched with the weather condition in advance, and the situation that high-power-consumption operation is still maintained in severe weather is avoided, so that the energy-saving effect is maximized on the premise that the monitoring reliability is not reduced; on the premise that the weather is appropriate and the charging efficiency is predicted to be guaranteed in a future period of time, the equipment is adjusted to enter an appropriate working mode, so that the working effects of images and the like reach the optimal state.

The embodiment of the present invention discloses an intelligent cable monitoring method based on image data, which includes: acquiring image data collected by each monitoring and acquisition node at fixed preset periods, identifying the image data respectively to obtain cable data information of the corresponding monitoring and acquisition node; determining the cable failure rate of the monitoring cable area in the corresponding monitoring and acquisition node according to the cable data information, and adjusting the fixed preset period corresponding to each monitoring and acquisition node according to the cable failure rate; collecting image data for each monitoring and acquisition node in the respective adjusted periods, and generating alarm information when it is determined that the collected image data meets the fault alarm condition. This solution solves the problem of single cable monitoring mode and low efficiency in the prior art, while ensuring the low power consumption operation of the monitoring equipment.

One embodiment of this specification discloses a display device comprising: a substrate including a display area and a non-display area; driving wiring extending from the display area to the non-display area; a planarization layer disposed above the driving wiring; and touch wiring disposed on the planarization layer. The planarization layer includes trenches extending in one direction, and the trenches do not overlap with the touch wirings in a plane.

The application relates to the field of packaging heat dissipation technology, and provides a three-dimensional integrated active heat dissipation structure, which comprises an upper cover plate layer, an air inlet hole is arranged on the upper cover plate layer; a fan and pump layer is arranged below the upper cover plate layer; at least one liquid cooling flow channel layer is arranged below the fan and pump layer; a high-power device layer is arranged below the at least one liquid cooling flow channel layer; at least one vapor chamber layer is arranged on at least one surface of the high-power device layer; at least one heat conduction material layer is arranged between the high-power device layer and the vapor chamber layer; and a lower cover plate layer is arranged at the bottom of the whole structure. The structure can be combined by selecting and matching the air cooling layer, the single and double liquid cooling layers and the vapor chamber layer according to different high, medium and low power devices, and three-dimensional integration and synergic coupling of the air cooling, liquid cooling and solid heat conduction structure are achieved, so that three-dimensional heat management is realized.

The present disclosure provides a display device including a substrate, a reflective electrode disposed on the substrate, a light emitting element disposed on the reflective electrode, a planarization layer disposed to cover the reflective electrode and the light emitting element, and including a trench, and a second connection electrode disposed on the planarization layer and the light emitting element, wherein the second connection electrode is contiguous with the reflective electrode in the trench. Accordingly, the reflective electrode and the second connection electrode can be disposed to completely surround side surfaces and a bottom surface of the light emitting element, thereby reflecting light emitted from the light emitting element in an upward direction of the light emitting element, and improving light extraction efficiency.

This application relates to a diaphragm state control method, a gesture interaction device, an apparatus, a device, and a medium for a gesture interaction device. The method includes: in response to a mode switching command, acquiring a mode identifier of the gesture interaction device; then, based on the mapping relationship between the mode identifier and the operating state, determining the target operating state of each diaphragm in the gesture interaction device; the target operating state includes an interrupt trigger condition and a detection function identifier; subsequently, activating a detection function matching the detection function identifier from among various detection functions of each diaphragm, and controlling each diaphragm to report data when the interrupt trigger condition is met. This method can reduce the false touch rate of the gesture interaction device and reduce device power consumption.

Disclosed are a gamma voltage generation circuit according to an embodiment and a display device including the same. The gamma voltage generation circuit includes a first resistor string including a plurality of resistors connected in series and configured to generate a gamma reference voltage through a voltage division node between predetermined resistors among the plurality of resistors, a gamma buffer configured to output the generated gamma reference voltage, and a driving circuit configured to generate an enable signal for enabling or disabling the gamma buffer based on a voltage of an output node of the gamma buffer.

The invention discloses a double-temperature condensation heat pump system, a control method and a clothes dryer, and the system comprises a double-stage compressor with a low-pressure-stage air cylinder and a high-pressure-stage air cylinder, a flow dividing control unit, a low-temperature heating loop, a high-temperature heating loop, an unloading protection unit and a control system. A refrigerant can be distributed to different heating loops according to the proportion, so that continuous adjustable output of low-temperature, medium-temperature and high-temperature heat is achieved, a high-pressure-stage air cylinder keeps low-power-consumption operation under the low-load working condition through an unloading protection structure, the reliability and the energy efficiency level of the system are improved, and the energy efficiency is improved. According to the control method, a low-temperature mode, a high-temperature mode or a mixed mode is selected according to the target temperature, closed-loop adjustment is carried out, the temperature adjusting process is stable and continuous, the invention further discloses a clothes dryer adopting the system, appropriate temperatures can be provided in different drying stages, the drying efficiency is improved, clothes damage is reduced, and the clothes dryer is suitable for being used in different drying stages. And meanwhile, the device has the advantages of compact structure, stable operation and wide application range.

This application relates to the field of in-memory computing memory technology, and more particularly to a three-dimensional ferroelectric memory with an IGZO channel and its fabrication method. The three-dimensional ferroelectric memory with an IGZO channel includes: a bottom global gate line; a center select gate extending vertically relative to the bottom global gate line; a semiconductor stack structure including a gate metal layer, a ferroelectric layer, a gate oxide layer, and an IGZO channel sequentially surrounding the center select gate; a drain and a source extending horizontally relative to the center select gate into the semiconductor stack structure and contacting the ferroelectric layer; and multiple pairs of drains and sources spaced apart along the extension direction of the center select gate to form multiple ferroelectric memory transistor cells. The three-dimensional ferroelectric memory with an IGZO channel of this application improves the durability and reliability of non-volatile memory devices.

The invention belongs to the technical field of electrical equipment mechanical state detection, and particularly relates to a UWB-based transformer substation electrical equipment mechanical state online monitoring system. Comprising a wireless sensor node, a fixed or mobile client and a cloud platform, the wireless sensor nodes are wireless vibration sensors which are distributed on power equipment in a transformer substation and carry UWB technology, and are used for collecting vibration signals of the equipment in real time; the fixed or mobile client collects detection data of each wireless sensor node so as to monitor vibration signals of each part of the equipment on line, and positions each sensing node through an algorithm; the cloud platform receives the position information and the monitoring data of each node, and performs big data processing and analysis to diagnose the mechanical state of the power equipment; according to the invention, the wireless sensing network communicates with the wireless sensing nodes through the fixed or mobile client, rapidly transmits vibration signals and positions the sensing nodes, and has the advantages of high-efficiency transmission, high-precision positioning and low-power-consumption operation.

The application discloses a temperature and vibration composite sensor for online monitoring of rotating machinery applied to the field of sensors and aims to solve the problems of easy abrasion of signal transmission of existing rotating parts and fixed ends, inconvenience of installation and maintenance and low reliability of monitoring data. The temperature and vibration composite sensor comprises a rotating shaft, a bearing, a sensor assembly and a rotating connector. The top end of the bearing fixing ring is provided with the rotating connector, which comprises a protective ring, a rotating ring and a floating connecting post, and the inner wall of the protective ring is provided with a connecting ring. The sensor assembly is connected with the rotating shaft through a mounting bracket, and comprises an encapsulating shell, a temperature and vibration sensor main body and a preprocessing unit. The sensing end of the temperature and vibration sensor is attached to the rotating shaft. The mounting bracket is designed in a U-shaped buckle and pawl mode, and cooperates with a pressure sensing unit to ensure stability. Long-term contact abrasion is avoided through dynamic butt joint of the floating connecting post and the connecting ring. The preprocessing unit realizes conventional low-power monitoring and abnormal real-time response, prolongs the service life of equipment and provides efficient and intelligent support for state early warning and fault diagnosis of rotating machinery.

The invention discloses an extensible 5T-SRAM architecture and a control method thereof. The architecture comprises a 5T-SRAM array, a byte decoder, a weight mapping network, a word line group selection module and a word voltage switch. The method comprises the following steps: decoding byte data to be processed, activating a corresponding word line according to the selected byte data, and obtaining the activated word line; distributing the selected byte data to the activated word line; distributing a corresponding voltage state to the activated word line; and performing reading, holding or writing operation on the selected byte data according to the voltage state of the activated word line. According to the embodiment of the invention, the leakage power of the memory in the standby state can be reduced, so that the operation power consumption of the memory is reduced, and the reliability and stability of the memory are improved. The method can be widely applied to the technical field of integrated circuit design.

The present invention relates to the field of intelligent management technology, and discloses a dual-band low-power Wi-Fi keep-alive wake-up method and system for the Internet of Things, the system comprising: a storage module and a control module, the storage module stores connection keys, identity authentication information and historical sleep data; the control module comprises a collection unit, a processing unit, a judgment unit and a wake-up unit; the collection unit scans the surrounding Wi-Fi networks to obtain the Wi-Fi network quality to determine the network to be connected; the processing unit stores the information in the storage module after the connection is successful; the judgment unit determines whether to enter the low-power mode based on the operating status; the judgment unit collects the current time period information to obtain the predicted sleep duration; the wake-up unit monitors the GPIO pin status and starts timing, and restores the connection according to the connection key and identity authentication information when wake-up is required. The present invention realizes efficient and low-power operation of Internet of Things devices by introducing an intelligent control module and a dynamically adjusted low-power sleep mechanism.

A gate driver according to an embodiment and a display device including the same are disclosed. The gate driver includes a plurality of signal transmission portions cascaded via carry lines configured to apply a respective carry signal as an input to the plurality of signal transmission portions, where each of the plurality of signal transmission portions includes: a first output circuit configured to output a first signal to the plurality of signal transmission portions, and a second output circuit configured to output a second signal to the plurality of signal transmission portions; a first signal transmission section configured to receive the first carry signal from the previous signal transmission section and output a second carry signal based on the first carry signal and a clock signal; a selection circuit configured to receive the second carry signal from the first output circuit and selectively output the second carry signal based on a voltage level of a selection data voltage; and a second output circuit configured to output a strobe signal based on the second carry signal selectively transmitted from the selection circuit and another clock signal.

The invention discloses a door lock electricity control system and an electricity control method, and relates to the technical field of intelligent control. The door lock electricity control system comprises a door lock, an indoor electricity control box and a remote control module; the wireless transmitting module is automatically activated when detecting that the door lock is in a completely locked state, a door lock microprocessor in the door lock encrypts wireless signals before the wireless signals are transmitted, the wireless transmitting module transmits the wireless signals containing codes to the wireless receiving module, and safety and confidentiality of the signals in the transmission process are guaranteed. After the wireless receiving module receives wireless signals, the signals are decrypted through a decryptor arranged on the indoor electricity control box, then codes in the signals are analyzed through a decoder, the indoor electricity control box controls power failure or power transmission of the indoor electricity utilization facilities according to the analysis result, and linkage control over the door lock and the indoor electricity utilization facilities is achieved. The invention provides an intelligent system for controlling power-off and power-on of indoor building facilities through a door lock, and the site safety and the operation convenience are improved.

The invention discloses a data transmission method and system between iOS equipment and external equipment. A data sending end frames original data to be transmitted to generate a data frame, and the data frame comprises a synchronization head, a length field, a data segment, a check code and an end character; according to the transmission rate and the anti-interference requirement, selecting an FSK modulation mode or an OOK modulation mode to modulate the data frame, and generating an audio signal; the data transmitting end outputs an audio signal through the USB Audio interface; the data receiving end receives an audio signal through a USB Audio interface; the received audio signal is demodulated, and a data frame is decoded; and verifying and analyzing the decoded data frame to obtain original data. By utilizing the standard and open USB Audio protocol of the iOS equipment, the MFi authentication barrier can be avoided, and low-cost, high-reliability and easy-to-develop bidirectional data transmission between the iOS equipment and the external equipment is realized.

This invention discloses an antibacterial smart sofa fabric with integrated temperature sensing and its control method, belonging to the field of temperature measurement technology. The invention includes the following: an antibacterial fabric base layer loaded with antibacterial particles, forming a double-layer structure and bonded together; a temperature sensing integrated module with a temperature sensor integrated between the fabric base layers; an intelligent control module with a microcontroller as its core, receiving data and outputting control commands; a power supply module including a battery and a wireless charging coil, featuring protection functions and low battery warnings; a human-machine interaction module with a display screen and physical buttons displaying core information; a data storage module using a storage chip to store relevant operational data; and an antibacterial enhancement and control module including atomization and airflow circulation units, automatically activating when antibacterial activity is insufficient. This invention provides stable and long-lasting antibacterial performance, maintaining a long-term antibacterial effect through a dynamic enhancement mechanism. Distributed sensing and environmental compensation design improve measurement reliability, and multimodal interaction is convenient, adapting to different usage scenarios.

An embodiment of the present application may provide a sub-pixel circuit including: a light emitting element configured to receive a high-potential driving voltage at an anode; a driving transistor including a first node, a second node, and a third node; a scan transistor controlled by a first scan signal and transmitting a data voltage through a data line; a storage capacitor; and a control circuit configured to control operations of the driving transistor, the scan transistor, and the storage capacitor and located between a cathode of the light emitting element and a low potential reference voltage.

The utility model relates to the technical field of power supplies, in particular to a step-down control circuit, a circuit board and network additional storage equipment. Comprising a step-down controller, a first step-down module, a second step-down module and an output module, voltage input ends of the first step-down module, the second step-down module and the output module are connected with a power supply, control ends of the first step-down module and the second step-down module are connected with the step-down controller, and a control end of the output module is connected with the MCU; the step-down controller comprises a first enabling end and a second enabling end, the first enabling end is connected with the MCU, and the second enabling end is connected with the voltage output end of the first step-down module; the output voltage of the first step-down module is used as a control signal of the second step-down module and the output module, and when the external MCU controls the step-down controller to be closed, the electric energy output of the first step-down module, the second step-down module and the output module can be directly cut off, so that the subsequent power supply is cut off, and the low-power-consumption work is realized; therefore, the sleep test requirement is met.

The utility model discloses a kind of intelligent wearable equipment, and the photoelectric pulse wave sensor area of intelligent wearable equipment is provided with 3 light emitting units and 6 light receiving units in matrix arrangement, 3 emitting units are in linear arrangement, and 6 light receiving units are divided into two groups about the line symmetry of 3 emitting units.3 emitting units include the first light emitting unit located in the center of photoelectric pulse wave sensor area, and the second light emitting unit and the third light emitting unit symmetrically arranged about the first light emitting unit, and the first light emitting unit includes first green light LED, and the second light emitting unit and the third light emitting unit respectively contain green light LED, red light LED and infrared light LED.The utility model can improve physiological signal measurement accuracy while reducing the power consumption of intelligent wearable equipment, meet the double needs of user for accurate, long-acting health monitoring and low-energy consumption operation.

The application provides a charging management method, a charging management system and an electronic device, comprising: obtaining user charging information of a vehicle to be charged, and determining a user behavior coefficient; collecting state information of a charging environment, and determining an environment state coefficient based on the state information; obtaining safety information of a charging facility, and determining a facility safety coefficient based on the safety information; determining a charging adaptation degree of the vehicle to be charged under real-time working parameters based on the user behavior coefficient, the environment state coefficient and the real-time working parameters of the vehicle to be charged; and correcting a reference charging current based on the charging adaptation degree and the facility safety coefficient to obtain a target charging current of the vehicle to be charged. In this way, the reference charging current can be dynamically corrected by comprehensively considering user charging demand, environment state and facility safety, so that precise adaptation of a charging strategy to user individual demand and real-time health state of a battery can be realized under the premise of ensuring safety of on-site facilities and stability of a power grid.

This utility model relates to the field of IoT intelligent control technology, and in particular to a display control circuit applied to a smart cloud box device. It includes a CPU module, a WIFI / Bluetooth module, a display module, an audio codec module, an audio amplifier module, a transceiver module, a power supply module, and a step-down module. The WIFI / Bluetooth module, display module, audio codec module, audio amplifier module, transceiver module, and step-down module are all electrically connected to the CPU module. The CPU module uses an RK3399 processor chip, the display module uses a TC358772XBG display bridge chip, and the step-down module is also electrically connected to the power supply module. Through the organic combination of multiple modules, this display control circuit comprehensively solves the problem of insufficient display functionality in smart cloud boxes, improving display effect, response speed, and system compatibility.

The invention relates to the technical field of block chains, and discloses a Merkle tree hardware acceleration system for block chain data verification, in the system, a control module performs coordination control on each module; the address generator is used for generating addresses of brother nodes and father nodes in the Merkle tree according to the input indexes of the leaf nodes; the storage unit is used for storing data of leaf nodes, internal nodes and root nodes of the Merkle tree; the calculation module is used for performing data splicing, hash operation and data comparison on the Merkle tree nodes according to the address provided by the address generator, and generating an intermediate result and a verification result; and the buffer area is used for temporarily storing the node data read from the storage unit and the intermediate result output by the calculation module. According to the method, a hardware acceleration architecture is designed for the structural characteristics of the Merkle tree, the calculation efficiency of block chain data verification is improved, low-power-consumption operation is achieved, and the method is suitable for performance requirements in different block chain application scenes.