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169 results about "Ultra low power" patented technology

Ultra Low Power Microcontrollers. Analog Devices’ ultra low power (ULP) microcontroller allows edge nodes to intelligently process localized data with the smallest amount of system power needed. This allows customers to extend battery life and extend the time between charges allowing longer use.

Dormancy and wake-up system and method for enterprise-level solid state disk

The invention discloses a dormancy and awakening system and method of an enterprise-level solid state disk, and belongs to the technical field of power consumption management of the enterprise-level solid state disk. According to the system, a nonvolatile cache unit, an independent hardware state machine and an ultra-low power consumption wake-up detection circuit are integrated in a main controller. When entering the dormancy state, key data such as an FTL mapping table are stored in a nonvolatile cache, then the power management module cuts off power supply to the NAND flash memory and the main control core, and only the operation of the minimum circuit is maintained, so that the dormancy power consumption is reduced to be below 100mW; and during wakeup, the detection circuit identifies a physical layer signal to trigger rapid power-on, and the hardware state machine directly recovers the system state from the cache and bypasses the software initialization process, so that wakeup is completed and the NAND access capability is reconstructed within 1ms, and the industrial problem that ultra-low power consumption and rapid wakeup cannot be considered at the same time is effectively solved.
Owner:成都芯忆联信息技术有限公司

Heterogeneous multi-core chip power consumption state control system and heterogeneous multi-core chip

According to the heterogeneous multi-core chip power consumption state control system and the heterogeneous multi-core chip provided by the invention, the power consumption state request of each sub power supply domain is received through the set system hardware power consumption management module, and the driving signal is sent to the corresponding sub power supply domain according to the preset hardware time sequence, so that the corresponding sub power supply domain enters the target state; generating a PMU control signal; and the power management module drives an internal voltage regulator to execute corresponding regulation operation according to the PMU control signal. A special control processor (SCP) is not needed, the system hardware power consumption management module realized by pure hardware is adopted to directly control the power consumption state of each sub power supply domain in the heterogeneous multi-core SoC, the software processing delay is eliminated, the response speed is high, the static power consumption of the power consumption management module is remarkably reduced, and the system is particularly suitable for an ultra-low power consumption scene and has a wide application prospect. And hardware-level surge current protection is realized in a multi-core power-on process.
Owner:SHANGHAI WU QI MICROELECTRONICS CO LTD +1

Ultra-low power consumption micro LED visible light intensity self-adaptive regulation and control method and system

The invention relates to the technical field of intelligent control, and discloses an ultra-low power consumption miniature LED visible light intensity self-adaptive regulation and control method and system, and the method comprises the steps: obtaining an analog light intensity signal, and carrying out the smoothing processing of the analog light intensity signal, and obtaining an environment light intensity value; calculating a light intensity change rate, and if the light intensity change rate exceeds a dynamic threshold value, marking an environment state and outputting a light intensity difference value; generating a preliminary adjustment instruction according to the state matching control parameter and the difference value quantization mapping, and calculating target light intensity in combination with the basic brightness; after executing the instruction, calculating actual and target deviation, and iteratively correcting to obtain a light intensity control signal; if the power consumption exceeds the limit, optimizing the signal amplitude; the input driving circuit analyzes the synthesized pulse current, excites pixels to emit light and gathers to obtain adjustment data; and if the visual contrast is lower than a threshold value, the change rate is adjusted again to realize closed-loop refining, and the light intensity adjustment accuracy is improved. The method can improve the real-time sensing capability of ambient light.
Owner:SHENZHEN BAIQIANG PHOTOELECTRIC CO LTD

Signal design for ultra-low power receivers

One or more systems, devices, and / or methods may address signal design for ultra-low power receivers. Transmitter and receiver architectures capable of generating signals and waveforms supporting the operation of ultra-low-power receivers and compatible with OFDM-based signals are disclosed. In some cases, there may be procedures that address one or more of the following: device detection of an on-off keying (OOK) modulated sequence with redundant bits corresponding to OFDM symbols' cyclic prefix; device detection of an OOK modulated sequence with dynamic bit duration corresponding to long and short OFDM symbols; device reception of an OOK modulated DCI / message with redundant bits corresponding to OFDM symbols' cyclic prefix; and / or, device reception of an OOK modulated DCI / message with dynamic bit duration corresponding to long and short OFDM symbols.
Owner:INTERDIGITAL PATENT HOLDINGS INC

Ultra-low power consumption control method and system for earphone end

The invention discloses an ultra-low power consumption control method and system for an earphone end, and the method comprises the steps: monitoring power utilization parameters, and carrying out the analysis to obtain a power consumption state; predicting a power consumption trend based on the connection history and the signal environment; and setting a state regulation and control plan based on the power consumption state and the power consumption trend. Therefore, according to the monitored electric quantity and the use environment, the subsequent power consumption condition is predicted, then according to the prediction result, the state regulation and control plan is dynamically set, the standby state is automatically converted, a user does not need to manually start a shipping mode, it is ensured that the earphone state and power consumption are maintained in a reasonable interval, and the standby endurance is greatly improved.
Owner:ZHONGSHAN YUECHEN ELECTRONICS IND

Pulse type ultra-low power consumption energy management system based on super capacitor

The invention relates to the technical field of pulse load energy optimization control, in particular to a pulse type ultra-low power consumption energy management system based on a super capacitor, which comprises a pulse spectrum analysis unit, a capacitor bank dynamic tuning unit and a charge state compensation unit, a pulse spectrum analysis unit extracts a load pulse dominant frequency component through a window function weighting algorithm to generate a target frequency value, and a capacitor bank dynamic tuning unit inquires a mapping table according to the target frequency to adjust series-parallel connection combination of the super capacitors and injects a reverse reactance component to offset a resonant impedance difference value. And the charge state compensation unit predicts the residual charge quantity by using a Kalman filter, and triggers a charge redistribution strategy in a non-pulse period, thereby solving the problems of insufficient dynamic impedance matching and low charge balance efficiency in the traditional technology, realizing high-efficiency and low-consumption management of the energy of the super capacitor, improving the energy transmission efficiency, and reducing the energy consumption. And the endurance time of the equipment is prolonged.
Owner:ZHONGKE YINGDE JISHI (HANGZHOU) TECHNOLOGY CO LTD

Chirp interval modulation backscatter communication method and system based on variable-length scrambling codes

The invention discloses a chirp interval modulation backscatter communication method and a chirp interval modulation backscatter communication system based on variable-length scrambling codes, which mainly solve the problems of high power consumption of backscatter labels and high system deployment cost in the prior art. According to the scheme, a sending end sends an environment LoRa signal; the backscattering label modulates information to be sent to an environment LoRa signal in a time interval modulation mode, and modulates a variable-length scrambling code to an anchor symbol; a receiving end performs frequency shift compensation on the backscattering signal by adopting a frequency shift compensation method, demodulates the backscattering signal by combining a sliding window with a variable-length scrambling code, intercepts a backscattering signal sample through the sliding window, and performs de-spreading and fast Fourier transform (FFT) on the signal in the window; the position of an anchor symbol is determined by detecting the maximum value of an FFT peak value, information sent by the backscattering label is recovered from the position of the anchor symbol, and data demodulation is completed. On the premise of keeping demodulation reliability, the power consumption of the tag is effectively reduced, the deployment cost of a backscatter communication system is reduced, and the method can be used for ultra-low power consumption Internet of Things communication.
Owner:XIDIAN UNIV

A single transformer metering switch system

The application discloses a single mutual inductor metering switch system, and relates to the field of intelligent power systems.The system comprises a mutual inductor power supply module, a power management module, a main control module and a load module.The mutual inductor power supply module converts the AC energy obtained through induction into DC power.The main control module controls the power management module and the load module to alternately switch between a low-power sleep mode and a high-intensity working mode according to a predetermined time sequence by executing a low-power control strategy.The application can monitor the power and the equipment state in real time by using the power supply of the mutual inductor and a special power control algorithm.The application can not only collect and control local data, but also report the data in real time to realize remote internet-of-things management.Compared with a traditional switch system, the application compresses continuous energy consumption into extremely short pulse consumption, and the equipment completes all complex work in an extremely short time window in a burst mode, and is in an "apparently dead" super-low-power state in the remaining idle time.
Owner:HANGZHOU LADDER TECH CO LTD

An ultra-low power, high-intensity directional acoustic early warning device

ActiveCN224457444USound sourcesEngineering
This utility model relates to an ultra-low power, high-intensity directional acoustic warning device, including a front panel, a housing, a warning light, a sound-generating module, and a circuit board assembly. The circuit board assembly includes a power management module, a central management module, an audio algorithm processing unit, and a boost drive module. The power management module supplies power to the strobe light and the piezoelectric sound-generating unit. The central management module connects to the audio algorithm processing unit, the boost drive module, and the strobe light. The audio algorithm processing unit is connected to the boost drive module, which is also connected to the piezoelectric sound-generating unit. The central management module controls the audio algorithm processing unit to process the input audio signal and then drives the piezoelectric sound-generating unit to emit sound through the boost drive module. This utility model overcomes the high power consumption bottleneck of traditional electromagnetic loudspeakers and integrates the collaborative work of the strobe light and the piezoelectric sound source, enhancing target recognition through multi-dimensional warnings.
Owner:杭州聚声科技有限公司

Novel high-temperature-resistant wireless passive temperature measuring device

PendingCN121855708AMeet high temperature measurement needsThermometer detailsCircuit arrangementsWireless transmissionElectrical battery
The invention discloses a novel high-temperature-resistant wireless passive temperature measuring device, and belongs to the technical field of thermal metering testing. According to the device, the temperature measuring device is tightly attached to the surface to be measured through the adsorption auxiliary module made of magnetic attraction or high-temperature glue, the hot end of the passive energy supply module and the temperature measuring sensor make contact with the high-temperature position to be measured at the same time, and electric energy is provided for the ultra-low power consumption temperature measuring and wireless transmitting module after the cold end and the hot end of the passive energy supply module generate the temperature difference. Electrical parameters of the temperature measurement sensor are measured by the electrical measurement module and are transmitted to an external receiving end through the wireless transmitting module, so that a real-time online measurement function is realized. The problems that an active energy supply battery is poor in safety and short in endurance time under the high-temperature condition, and circuits such as a temperature measuring module and a wireless transmitting module are intolerant to high temperature are solved, and a solution thought of a wireless passive principle is provided for a special temperature measuring scene.
Owner:BEIJING CHANGCHENG INST OF METROLOGY & MEASUREMENT AVIATION IND CORP OF CHINA

Hybrid level crossing ADC circuit applied to mobile Internet of Things

The invention discloses a hybrid level crossing analog-to-digital converter circuit integrating a successive approximation type analog-to-digital converter and an event-driven analog-to-digital converter. The circuit is composed of a level cross analog-to-digital conversion module LC ADC, a logic module LOGIC and a noise shaping successive approximation analog-to-digital converter module NSSAR ADC. The architecture effectively integrates the advantages of two converters, and has the characteristic of ultra-low power consumption of a level crossing analog-to-digital converter while keeping the high precision characteristic of a successive approximation type analog-to-digital converter. The level crossing analog-to-digital conversion module LC ADC does not participate in quantization of input signals and is only used as a pre-detection circuit of level crossing, and the noise shaping successive approximation analog-to-digital conversion module NSSAR ADC is used for completing signal processing actions such as comparison, quantization and output, so that the precision of the output signals is not restricted by the level crossing analog-to-digital conversion module LC ADC. The hybrid architecture can meet the requirements of low-power-consumption and high-precision acquisition of signals of the modern mobile Internet of Things.
Owner:GUILIN UNIV OF ELECTRONIC TECH

A zigbee factory environment data acquisition control system

The utility model discloses a kind of Zigbee factory environment data acquisition control systems.The utility model includes lithium battery, power module, main control module, lithium battery, Zigbee module, power control module, LED indicator light module and watchdog timer.Through selecting ultra-low power consumption MCU and high-efficiency power management chip, and introducing power control module to each functional unit is powered in time, significantly reduce the system average power consumption, suitable for long time battery power supply application.Main control module can be according to sensor acquisition cycle and Zigbee communication strategy, dynamically dispatch module operating state, combine sleep mechanism to reduce invalid power consumption, realize on-demand work.System integrated hardware watchdog, in abnormal condition, it can be automatically reset and resume operation, enhance the self-recovery ability of system, improve the long-term operation reliability of equipment in complex industrial environment.
Owner:HANGZHOU JUFENG NEW MATERIALS CO LTD

Self-powered temperature transmitter

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.
Owner:ANHUI TIANKANG(GROUP) CO LTD

Ultra-low power timing circuit with PLL locking

Methods, systems, and computer program products are presented herein for circuit timing using ultra-low power (ULP) timing circuit systems. A ULP timing circuit system comprises a receiver circuit, phase lock loop (PLL) circuit, crystal oscillator (XO) circuit, temperature sensing and calibration circuit, and temperature compensation circuit. The receiver circuit is configured to receive a reference clock signal. The XO circuit is configured to produce an output clock signal. The PLL circuit is configured to produce a control signal based on the reference clock signal and output clock signal. The temperature compensation circuit is configured to produce a compensation signal based on an operating temperature. The temperature sensing and calibration circuit is configured to sense the operating temperature and to calibrate the XO circuit based on the operating temperature, control signal, and compensation signal to lock a frequency of the output clock signal to the reference clock signal.
Owner:NORTHEASTERN UNIV (US)

Channel access method

This disclosure provides a random access method over an Internet of Things (IoT) interface for Ambient IoT (A-IoT) devices with backscatter-enabled device-to-reader signal transmission. An A-IoT device receives a trigger signal from a network node, determines a resource location for a first device-to-reader IoT signal, transmits it, receives a first reader-to-device IoT signal, and decides whether to transmit a second device-to-reader IoT signal based thereon. The method supports contention-based or contention-free access, TDMA-or FDMA-based multiplexing, and handles failures with re-access mechanisms. It enables deployment of ultra-low-power A-IoT devices, realizes key use cases like inventory and commands, reduces maintenance costs, and ensures 3GPP coexistence.
Owner:ESSEN INNOVATION CO LTD

Image navigation method and system based on nano unmanned aerial vehicle of ultra-low power consumption edge chip

The application discloses a nano unmanned aerial vehicle image navigation method and system based on an ultra-low-power edge chip, relates to the cross technical field of unmanned aerial vehicle autonomous navigation and edge computing, and comprises the following steps: constructing a lightweight feature extraction backbone network based on a deep separable convolution, generating a basic navigation model suitable for an edge chip based on early feature fusion and end-to-end decision calibration; obtaining a quantization model suitable for a chip instruction set through full-link fixed-pointing, operator smelting, and integer and inverse quantization collaborative optimization; combining a multi-level storage structure of the chip, demarcating a target memory space, establishing a memory alignment and hardware protection mechanism, and building a stable bottom-layer running environment; and achieving full-airborne high-frame-rate real-time navigation operation of the nano unmanned aerial vehicle through tensor block constraint planning and asynchronous inference pipeline design. Through optimization of a network architecture, power scheduling and a memory mechanism, the application realizes airborne independent low-power navigation, and solves the problems of high navigation power consumption of the unmanned aerial vehicle and difficulty in adaptation.
Owner:BEIJING INFORMATION SCI & TECH UNIV +1

Embedded low-voltage nano-gate ferroelectric transistor structure and preparation method thereof

The invention relates to an embedded low-voltage nano-gate ferroelectric transistor structure and a preparation method thereof, and relates to the field of memory devices, the embedded low-voltage nano-gate ferroelectric transistor structure comprises a silicon-based CMOS logic circuit, the silicon-based CMOS logic circuit is provided with a first insulating dielectric layer and a plurality of horizontally arranged nano-gate ferroelectric transistors, a second insulating medium layer is arranged between every two adjacent nano-gate ferroelectric transistors; the nanometer gate ferroelectric transistor comprises a gate metal interconnection, a third insulating dielectric layer, a ferroelectric layer, a metal floating gate, a gate dielectric layer, a channel material layer and a source and drain electrode which are arranged from bottom to top, and the bottom of the gate metal interconnection is connected with the silicon-based CMOS logic circuit through a connecting line penetrating through the first insulating dielectric layer; metal nano-gates are vertically arranged on the two sides of the gate metal interconnection and the third insulating dielectric layer, the tops of the metal nano-gates are in contact with the ferroelectric layer, and side walls are arranged between the metal nano-gates and the second insulating dielectric layer. According to the invention, ultra-low power consumption edge computing application can be met, and storage and computing integrated operation is supported.
Owner:PEKING UNIV

Energy consumption-aware intelligent model dynamic pruning and scheduling method and system

PendingCN122287749AEnergy budgetModel dynamics
This invention provides an energy-aware intelligent model dynamic pruning and scheduling method and system, relating to the field of model lightweighting technology. By introducing an energy-aware dynamic pruning mechanism, a real-time scheduling strategy, and a closed-loop feedback structure, this invention achieves dynamic optimization of energy consumption, accuracy, and latency during deep learning model inference, offering significant advantages over existing static pruning or fixed model inference schemes. The dynamic pruning decision mechanism of this invention can perform fine-grained structural adjustments based on the real-time energy budget during inference. Its runtime control overhead is far lower than traditional dynamic networks, and it does not significantly increase inference time. The extremely low runtime overhead allows it to operate stably in ultra-low-power scenarios such as wearable devices, IoT nodes, and energy harvesting equipment.
Owner:BEIHANG UNIV

Optical fiber and ultra-low power consumption wireless fusion coal mine pipeline information transmission method

The invention relates to the field of coal mine pipeline information transmission and information technology fusion, in particular to an optical fiber and ultra-low power consumption wireless fusion coal mine pipeline information transmission method, and aims to improve the reliability of an ultra-low power consumption short-distance wireless communication technology. The method comprises the steps of planning an optical fiber backbone network based on a self-adaptive wiring algorithm by adopting a flexible optical fiber and a corrosion-resistant sheath material, and preferentially covering key monitoring points and data aggregation nodes. Ultra-low power consumption short-distance wireless communication nodes are deployed at positions where optical fibers are difficult to lay and signals are attenuated. A heterogeneous fusion networking technology based on optical fiber and wireless communication is adopted, a data transmission path is automatically switched according to a real-time network state, and fault tolerance is improved through a multi-path redundancy and link quality sensing algorithm. An energy efficiency optimization intelligent scheduling algorithm is introduced into a wireless communication node end, the work cycle and communication frequency of the wireless communication node are intelligently scheduled according to real-time data flow, node residual electric quantity and network load, and the data transmission priority is dynamically adjusted.
Owner:SHANXI INFORMATION IND TECH RES INST CO LTD

A parallel situation gravity calculation chip and method based on in-memory computing

PendingCN122509213AEliminate bottlenecksreduce power consumptionMassively parallelCrossbar switch
This invention discloses a parallel situational gravity calculation chip and method based on in-memory computing, belonging to the field of artificial intelligence chips and analog in-memory computing technology. The chip includes: an event polarity input unit, which converts externally input event information loads (six-dimensional polarity vectors) into analog voltage signals; a situational reference storage array, employing a memristor cross-switch array, with each row storing a six-dimensional binary encoded vector of a reference situational type (such as the 64 hexagrams); a parallel gravity calculation unit, which performs large-scale parallel multiply-accumulate operations simultaneously in the analog domain, following the gravity calculation rule of "like lines cooperate, dissimilar lines repel," generating a multi-dimensional gravity intensity distribution; and a gravity readout and post-processing unit, which converts the gravity distribution into situational awareness results and outputs them. This invention adopts an in-memory computing architecture, eliminating the "memory wall" bottleneck of the traditional von Neumann architecture, achieving nanosecond-level fully parallel gravity calculation and ultra-low power consumption operation. It can be deployed as an independent situational awareness processor at sensor terminals, IoT terminals, and wearable devices.
Owner:PUTIAN ZIXU LIFE TECHNOLOGY CO LTD

Ultra-low power bandgap reference start-up circuit

The application discloses a kind of ultra-low power consumption band gap reference starting circuit, it includes respectively with power supply voltage connection current generating unit, first bias voltage generating unit and second bias voltage generating unit;The current generating unit is used to generate nA level current and generate the starting voltage of the first bias voltage generating unit, the first bias voltage generating unit is started according to the starting voltage provided by the current generating unit and generates first bias voltage, the first bias voltage is output to second bias voltage generating unit;The second bias voltage generating unit is started with the first bias voltage as starting voltage and generates second bias voltage;The first bias voltage and the second bias voltage are all output to band gap reference circuit to start the band gap reference circuit.The ultra-low power consumption band gap reference starting circuit of the application can normally start nA level band gap reference circuit, and the working current of starting circuit is also nA level, reduce power consumption, save cost.
Owner:IPGOAL MICROELECTRONICS (SICHUAN) CO LTD

Multi-mode trigger-based ultra-low power single-chip microcomputer power supply circuit and electric device

The application relates to a multi-mode trigger-based ultra-low-power single-chip microcomputer power supply circuit and a power consumption equipment, which comprises an upper computer trigger channel, a button trigger channel, a charging trigger channel, an LDO step-down circuit and an MCU unit; the LDO step-down circuit provides a voltage for the MCU unit when powered on; the upper computer trigger channel is turned on by an upper computer, the button trigger channel is turned on by a button, and the charging trigger channel is turned on by a charger; when any of the upper computer trigger channel, the button trigger channel and the charging trigger channel is triggered and turned on, the LDO step-down circuit is powered on; the scheme has the advantages of physical level zero standby power consumption, stable and reliable power supply, flexible and complementary trigger mode, significant improvement of endurance and high reliability.
Owner:SHENZHEN WEISHI OPTOELECTRONIC TECH CO LTD +1

An ultra-low power electrocardiogram monitoring system based on backscattering communication and a method thereof

ActiveCN121647694BEcg signalControl signal
The application relates to the technical field of backscatter communication and discloses an ultra-low-power electrocardio monitoring system and method based on backscatter communication. The system comprises a signal source for emitting a radio frequency carrier, a backscatter tag comprising an electrocardio signal acquisition module, a signal processing and modulation control module and a reconfigurable backscatter communication module, which is used for acquiring and processing electrocardio signals, generating modulation control signals according to the electrocardio signals, and reflecting and modulating the carrier through a same-phase quadrature load modulation architecture and a subcarrier frequency shift technology, and a receiving device for receiving and demodulating the reflected signals to obtain electrocardio data. The application utilizes a passive backscatter communication mechanism, significantly reduces the communication power to the order of 132 pJ / bit, overcomes the distance limitation of traditional near-field communication, realizes reliable data transmission of up to 10 meters, and is suitable for long-term and dynamic clinical electrocardio monitoring.
Owner:SOUTHEAST UNIV

Ultra low power low noise buffer and electronic device

Provided is an ultra low power low noise buffer and an electronic device. The ultra low power low noise buffer includes: a source current drive circuit; and a sink current drive circuit, the sink current driving circuit includes a first transistor, a second transistor and a first current source connected to each other, and the source current drive circuit includes a second current source, a third transistor, an operational amplifier and a voltage source, the second current source is electrically connected to the first transistor and the third transistor, the third transistor is electrically connected to the first transistor and the operational amplifier, and the operational amplifier is electrically connected to the voltage source, the first transistor, the second transistor and the first current source. The chip area, the power consumption, noise induction, output resistance and total harmonic distortion are reduced, and the power supply rejection ratio is improved.
Owner:AAC TECHNOLOGIES PTE LTD

Ultra-low power consumption electrocardiogram monitoring system and method based on backscatter communication

The invention relates to the technical field of backscatter communication, and discloses an ultra-low power consumption electrocardiogram monitoring system and method based on backscatter communication. The system comprises a signal source used for transmitting a radio frequency carrier wave; the backscattering label comprises an electrocardiosignal acquisition module, a signal processing and modulation control module and a reconfigurable backscattering communication module, and is used for acquiring and processing electrocardiosignals, generating modulation control signals according to the electrocardiosignals and carrying out reflection modulation on carriers through an in-phase orthogonal load modulation framework and a subcarrier frequency shift technology; and the receiving equipment is used for receiving and demodulating the reflected signal to obtain the electrocardiogram data. A passive backscatter communication mechanism is utilized, the communication power consumption is remarkably reduced to 132 pJ / bit magnitude, meanwhile, the distance limitation of traditional near-field communication is overcome, reliable data transmission at the farthest distance of 10 meters is achieved, and the system is suitable for long-term and dynamic clinical electrocardiogram monitoring.
Owner:SOUTHEAST UNIV

Intelligent door lock based on WIFI communication ultra-low power consumption wireless networking

The utility model discloses an intelligent door lock based on WIFI communication ultra-low power consumption wireless networking, which comprises an intelligent door lock, the intelligent door lock comprises an M0 core processor, an RAM module, a FLASH module, a card reading module, a motor module, an M4 core SOC, a WIFI radio frequency module and a power supply module, the M0 core processor is connected with the M4 core SOC through a full duplex serial port, and the M0 core processor is connected with the M4 core SOC through a full duplex serial port. The M0 core processor is respectively in communication connection with the card reading module, the motor module, the RAM module and the FLASH module, the M4 core SOC is in communication connection with the WIFI radio frequency module, the WIFI radio frequency module is connected with an antenna, a sender firstly sends a byte data 00 to wake up the processor of the opposite side and then sends protocol data, the two parties are in a working state at the moment, and if no data is transmitted and received within one second, the M0 core processor is in communication connection with the M4 core SOC. The M0 core processor and the M4 core SOC enter the dormant state, and the method can enable the M0 core processor and the M4 core SOC to be in the dormant mode with very low power consumption at ordinary times, meanwhile, the requirement of real-time communication is met, and the practicability of equipment is improved.
Owner:ENGINE

An asynchronous sparse matrix external product multiplier based on event-driven circuit design

This invention discloses an asynchronous sparse matrix outer product multiplier based on an event-driven circuit design. The multiplier employs a merging strategy that explicitly associates data with storage unit addresses, mapping matrix data address indices to corresponding addresses in the storage modules. Identical indices indicate identical storage locations, necessitating a merging operation. This strategy ensures the determinism of the data merging process and avoids complex sorting operations. Furthermore, the event-driven, clockless circuit used in this multiplier effectively mitigates some problems associated with synchronous circuits due to the absence of a clock and the use of an asynchronous controller to control data transmission. It also features low power consumption, high adaptability, and a certain degree of electromagnetic interference resistance, making it suitable for processing scenarios requiring ultra-low power consumption.
Owner:LANZHOU UNIV

Iot-based underground corrugated compensator leakage positioning method and system

PendingCN122107297AReduced operating power consumptionFilter out background mechanical noise interferencePipeline systemsSample ModeNoise
The application relates to the technical field of urban underground pipe network safety monitoring, and discloses a wave corrugation compensator leakage positioning method and system based on an Internet of Things, which is applied to an Internet of Things system comprising a cloud server and a plurality of sensing nodes, and the sensing nodes are installed in the interlayer space of the wave corrugation compensator. The method comprises the following steps: collecting pressure and temperature data of the interlayer space by the nodes at a low frequency, triggering an adjacent node to enter a high-frequency acoustic sampling mode when the pressure change rate is greater than a dynamic threshold value; collecting an acoustic emission signal, filtering mechanical noise through a noise reduction model, and extracting fluid jet noise characteristics; performing cross-correlation analysis on the acoustic signals between the nodes to calculate the actual sound wave conduction distance, and verifying whether real leakage occurs by comparing with a physical topological distance; and finally evaluating the leakage grade according to the steady-state peak value of the pressure data and the acoustic frequency energy data, and outputting device coordinate information. The application has both ultra-low power consumption and strong anti-interference capability, and realizes accurate element-level leakage positioning.
Owner:GANSU WALL TECH CO LTD

Intelligent water meter data copying system based on measured value transmission technology

The invention belongs to the technical field of intelligent metering and data communication, and particularly relates to an intelligent water meter data copying system based on a measured value transmission technology, which comprises an intelligent water meter terminal, a data concentrator and a cloud management platform. The intelligent water meter terminal is provided with a metering module, a microcontroller, a storage module and a dual-mode communication module composed of an ultra-low power consumption wake-up receiver and a main communication module, and the strategy of periodic reporting, event triggering and on-demand copying is adopted. And the data concentrator is responsible for receiving and forwarding data and waking up the terminal. And the cloud management platform realizes data storage, analysis and remote control. Through the layered and dual-mode communication architecture, the system realizes high-reliability and high-efficiency data transmission and ultra-low power consumption long-term operation of the terminal, improves management refinement, reduces operation and maintenance cost, and ensures data security.
Owner:SHENZHEN SMART BADGER TECHNOLOGY CO LTD

A road surface embedded wireless intelligent aggregate and system, and a signal processing method

PendingCN122448277ARoad engineeringRoad surface
The present application relates to the technical fields of road engineering, structural health monitoring and Internet of Things sensor, and relates to a road embedded wireless intelligent aggregate and system and a signal processing method. The system comprises a packaging shell provided with an upper accommodating cavity and a lower accommodating cavity, a main circuit board is arranged in the packaging shell, an ultra-low power consumption computing and control module, a power management module, a wireless communication module and a multi-physical field sensing module for sensing temperature, dynamic stress and inertial motion parameters are integrated on the main circuit board, an upper cover is sealingly connected to the top of the upper accommodating cavity, and the upper cover is in abutment with the multi-physical field sensing module; a vibration energy harvesting module is arranged in the lower accommodating cavity, and the bottom of the lower accommodating cavity is sealed by a lower cover; the vibration energy harvesting module and the multi-physical field sensing module are electrically connected with the main circuit board. The aggregate can resist severe temperature cycles and continuous vehicle load impact of the road, and can meet the continuous monitoring requirements in the whole life cycle of the road.
Owner:CHANGAN UNIV +1