358 results about "Ultra low power" patented technology

The invention relates to the technical field of ultra-low power consumption microcontrollers, and discloses an ultra-low power consumption microcontroller architecture design method and system, and the method comprises the steps: constructing a heterogeneous dual-core processor comprising a high-performance core and a low-power consumption core, and dividing the heterogeneous dual-core processor into a plurality of independent power domains; constructing a sub-threshold voltage operation system on a plurality of independent power supply domains, and configuring a multi-layer storage structure in the heterogeneous dual-core processor; recording task characteristic data by using a multi-level storage structure, executing task dynamic allocation between dual cores, and creating a dynamic task allocation mechanism; and performing static analysis and function block division on the application code based on a dynamic task allocation mechanism to obtain a plurality of function code blocks, and performing storage hierarchy and processor core allocation on the plurality of function code blocks to obtain a function code allocation result. According to the method, the dynamic migration of the workload and the optimal resource allocation are realized, and the energy consumption of the microcontroller in various working scenes is reduced.

The invention relates to the technical field of multi-channel audio processing, and discloses a multi-channel audio processing method and device for an ultra-low power consumption end side AI chip, and the method comprises the steps: carrying out the ADC conversion of a multi-channel analog audio signal from a microphone array, and obtaining a multi-channel digital audio data stream; performing frame segmentation and frequency domain transformation processing on the multi-channel digital audio data stream to obtain a multi-channel frequency domain feature matrix; executing variational Bayesian inference to obtain an enhanced voice signal matrix; implementing two-stage cascade processing to obtain a voice event processing result; and executing an adaptive federated learning algorithm among the distributed devices to obtain globally optimized model parameters, and deploying the globally optimized model parameters to an ultra-low power consumption end side AI chip to execute multi-channel audio processing. And a complex audio processing algorithm can be efficiently operated on an end-side AI chip with limited computing resources.

The invention relates to the technical field of narrow-band filters, and discloses an ultra-low power consumption narrow-band filter implementation method based on a digital phased array system, and the method comprises the following steps: S1, collecting input signal data, carrying out the adaptive preprocessing, and generating preprocessed signal data; s2, performing digital beam forming processing based on the preprocessed signal data to generate digital beam forming data; s3, performing narrowband filtering parameter matching processing according to the digital beam forming data to generate narrowband filtering parameter data; in the narrowband filtering processing process, disturbance of environmental electromagnetic interference to a target signal is identified and eliminated in real time through adaptive noise suppression and a multi-dimensional signal preprocessing mechanism, so that the system can guarantee the pointing precision of digital beam forming, the pointing offset problem in the space signal capturing process is avoided, the accuracy of narrowband signal extraction is improved, and the accuracy of narrowband signal extraction is improved. And the reliability of filtering output and the signal fidelity are enhanced.

The invention provides an interphone emergency rescue method and system based on ultra-low power consumption remote wakeup, and relates to the technical field of interphone emergency rescue, and the method comprises the steps: switching a normal working mode to an ultra-low power consumption mode according to a mode switching instruction generated by triggering a target emergency event; in the ultra-low power consumption mode, performing signal monitoring on a preset communication frequency band according to a preset monitoring strategy so as to receive a wake-up signal broadcasted by a first search and rescue user on the preset communication frequency band through a first search and rescue end interphone; when it is determined that the wake-up signal is received from the preset communication frequency band, performing security verification on the wake-up signal to switch the ultra-low power consumption mode to a normal working mode; and in the normal working mode, executing the target help-seeking operation. The technical problem that the emergency rescue efficiency of the interphone in the ultra-low power consumption mode is low in the prior art is solved, and the technical effect of improving the emergency rescue efficiency of the interphone in the ultra-low power consumption mode is achieved.

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.

The invention discloses an ultra-low power consumption pyroelectric infrared human body detector and a networking control method thereof. The detector comprises a detection module, a control module, a power supply module, a communication module, an interaction module and a dynamic power consumption management module, human body infrared radiation is detected based on the pyroelectric effect, and ultra-low power consumption operation is achieved by dynamically switching working modes. The networking control method is based on a BLE Mesh protocol, a self-adaptive topology management algorithm is used for optimizing routing, and efficient networking with intelligent equipment is achieved. The system solves the problems of high power consumption, large networking delay, high false alarm rate and the like of a traditional detector, and is suitable for the fields of smart home, intelligent security and protection and the like.

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.

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.

The invention discloses a non-volatile phase shifter which is ultra compact and low in loss. In the non-volatile phase shifter, signal light is transmitted to the composite hybrid waveguide through the input waveguide and is modulated after passing through the phase change material area of the composite hybrid waveguide, and the phase change material is directly modulated through spatial light, so that the phase of the signal light is modulated. According to the invention, optical pulses with different pulse widths and different powers can be used, and the phase state of the phase change material can be regulated and controlled. The problems of large size area and high power consumption required by electro-optical regulation and control, thermo-optical regulation and control and the like are solved, pi phase shift can be realized in an interaction length as low as several microns, and meanwhile, relatively low loss is kept. According to the invention, the phase change material is regulated and controlled through spatial light, so that the distinguishable level up to 8 bits can be realized, and hyperfine phase regulation and control in an ultra-small structure can be realized. According to the invention, an excellent phase shifter design scheme can be provided for realizing complex photon circuits with ultra-compactness, ultra-low power consumption, low loss and the like.

The invention relates to the technical field of gas detection, in particular to an ultra-low power consumption wireless transmission gas detector. On the basis that all gas detectors in a to-be-monitored area operate in a detection dormancy alternating mode to reduce power consumption, a low-power-consumption control system is additionally arranged; the change condition of gas concentration data in the surrounding environment of gas detectors at different positions in a to-be-monitored area is comprehensively analyzed through a low-power-consumption control system, so that when the gas detectors are about to enter a dormant state, the gas detectors needing to be suspected to be adjacent to leakage points are screened out to prolong the detection time; therefore, the detection effectiveness is improved on the premise that the power consumption is reduced as much as possible.

The invention relates to the field of intelligent door and window alarm, in particular to a low-energy-consumption intelligent door and window safety alarm method and system based on environmental perception. The invention discloses a low-energy-consumption intelligent door and window safety alarm system based on environmental perception. The system comprises a correlation calculation module, an initial score calculation module, a monitoring alarm module and a monitoring frequency updating module. According to the method, the system energy efficiency is obviously optimized through a dual periodic scoring mechanism and a monitoring frequency dynamic adjustment strategy; establishing a basic energy consumption baseline based on an initial score generated by a user characteristic parameter, and generating a second importance score to accurately quantify a risk value of each scene in combination with deviation degree analysis and time sequence correction of short-period environment monitoring data; the dynamic regulation and control mode enables the equipment to maintain an ultra-low power consumption state in a risk-free period, and compared with a traditional fixed frequency, the monitoring scheme can significantly reduce energy consumption, and is especially suitable for long-term stable operation of a battery-powered intelligent window control device.

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.

The invention provides a low-power-consumption embedded data recording system and algorithm for on-line monitoring of SF density. The system is provided with an MCU main control unit, an external independent watchdog circuit, a LoRa wireless communication module, an RS485 interface, an SF density and temperature measurement sensor, a battery power supply and voltage acquisition module and a Flash data storage and real-time clock module. Algorithms of the system comprise an intelligent data recording strategy, a dynamic sensor activation and sleep mechanism, a power failure data protection and breakpoint continuation mechanism, a multi-parameter compression coding algorithm, a dynamic sampling frequency adjustment strategy, a real-time clock synchronization and timestamp calibration mechanism, a multi-sensor fusion sensing mechanism and an ultra-low power consumption system architecture mechanism. The low-power-consumption embedded data recording system and algorithm for on-line monitoring of the SF density have the functions of multi-data change trend intelligent judgment, multi-data fusion perception judgment, ultra-low power consumption and flexible communication, and are suitable for long-term field deployment.

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.

An eyewear device having an image processor operable in a camera pipeline for computer vision (CV) and in augmented reality (AR) systems. The image processor is configured to selectively control a plurality of cameras to provide images having a first resolution in the high power AR mode, and to provide the images having a second resolution in the low power CV mode. The first resolution is higher than the second resolution, and the plurality of cameras consume less power in the CV mode than the AR mode. The image processor controls the camera pipeline to process the first resolution high IQ images from the plurality of cameras to operate in the AR mode, and controls the camera pipeline to process the second resolution lower IQ images from the plurality of cameras to operate in the CV mode. Substantial power is saved by reducing the resolution of the images using downscaling in the cameras themselves in the CV mode.

The invention discloses a high-performance reference voltage implementation method and circuit. The method comprises the following steps: constructing a framework adaptive to low power supply voltage, and determining initial working parameters by selecting a conventional CMOS (Complementary Metal-Oxide-Semiconductor Transistor) process device; a low reference voltage value generation module is designed, a low-voltage NMOS device in a sub-threshold region is matched with a current mirror and a resistance network to output accurate low voltage, and interference is suppressed. First-order and second-order temperature compensation is implemented, and the temperature stability of the reference voltage is improved by utilizing devices with different temperature characteristics and specific NMOS electric leakage characteristics at high temperature. An ultra-low power consumption OP is designed, a low-voltage NMOS and a high-voltage native device are combined, and a bias circuit is optimized. The circuit integrates a low reference voltage module, a first-order temperature compensation module, a second-order temperature compensation module, an ultra-low power consumption OP module and the like. Finally, the working power supply voltage as low as 1V, the power consumption smaller than 100nA and the excellent second-order temperature compensation effect in the full-temperature range are achieved, and stable and accurate reference voltage is provided for related circuits.

The invention relates to the technical field of manufacturing of electrical element assemblies, and discloses a cold and heat exchange system of a liquid cooling cabinet and a use method of the cold and heat exchange system. The cold and heat exchange method of the liquid cooling cabinet comprises the steps that a complex thermodynamic model of the liquid cooling cabinet is processed through a hierarchical model distillation algorithm, and an ultra-lightweight thermodynamic digital twin model is obtained; processing the operation state of the liquid cooling cabinet through a multi-mode micro-sensor network to obtain a lightweight environment and load feature vector; processing the lightweight environment and load feature vector and the ultra-lightweight thermodynamic digital twin model through a micro predictive controller to obtain an adaptive liquid cooling control strategy; processing the self-adaptive liquid cooling control strategy through an ultra-low power consumption execution unit to obtain an accurately executed physical cooling effect; according to the invention, through an optimization algorithm, efficient control of the liquid cooling cabinet system is realized in a resource limited environment, the precision, the response speed and the energy efficiency are improved, the environmental adaptability and reliability are enhanced, and the bottleneck of a traditional system is broken through.

The invention discloses an ultra-low power consumption LoRa backscatter communication system based on an FPGA (Field Programmable Gate Array) and a design method thereof. Comprising a LoRa transmitter, a LoRa receiver, an upper computer and a LoRa backscattering terminal. The LoRa transmitter transmits a sine wave signal with a certain frequency. And the LoRa receiver receives and demodulates the backscattering signal, and then sends the demodulated signal to the upper computer. And the upper computer receives the demodulated signal, completes audio decompression and plays the audio. According to the backscattering terminal, an FPGA serves as a master control, and the FPGA completes the functions of audio compression, LoRa physical layer protocol processing and a LoRa backscattering algorithm. According to the invention, a LoRa backscattering algorithm based on table look-up is designed, then a multi-clock design method and a clock gating technology are provided to optimize system power consumption and communication performance, and outdoor testing is carried out on a scattering terminal. According to the invention, the performance advantages of the FPGA are exerted, and the ultra-low power consumption of the terminal is maintained.

The invention relates to the technical field of soil detection, in particular to an electronic tag for passive soil temperature and humidity measurement and a use method of the electronic tag. The electronic tag comprises a tag shell, a soil temperature and humidity sensor is arranged in the tag shell, a probe interface is arranged in the tag shell, and a probe body is fixedly installed on the surface of the probe interface. The NFC chip with the model of ST25DV is adopted, 13.56 MHz radio-frequency signals emitted by a mobile phone or a reader-writer are efficiently rectified into 3.3 V direct current, short-time power supply buffering is achieved in combination with a 2.7 V / 10F energy storage capacitor, energy is supplied to an ultra-low power consumption master control MCU 22 and a high-precision soil temperature and humidity sensor, when radio-frequency energy is insufficient, the master control MCU records the current state to an EEPROM of the NFC chip, data are continuously transmitted during next power supply, and the power consumption is reduced. A traditional battery is completely replaced, a large amount of cost generated by battery replacement is avoided, and the technical standard of sustainability and high robustness of the agricultural sensor is redefined.

The invention belongs to the technical field of gas sensors, and particularly relates to an ultra-low power consumption nano-electromechanical resonant NO2 gas sensor based on an audio frequency comb and a method. Wherein the drain electrode and the source electrode are respectively arranged on the silicon dioxide insulating layer, an I-shaped groove is embedded in the silicon dioxide insulating layer between the drain electrode and the source electrode, an I-shaped gate electrode is arranged in the I-shaped groove, and the adsorption layer is laid on the silicon dioxide insulating layer and covers the surfaces of the drain electrode and the source electrode. The middle part of the adsorption layer is suspended above the I-shaped gate electrode, and the silicon dioxide insulating layer is arranged on the monocrystalline silicon substrate; specific detection of NO2 is achieved through single-layer graphene, the internal resonance excitation audio frequency comb phenomenon is introduced, the gas detection sensitivity and resolution are greatly improved, and sub-ppb-level NO2 gas detection is achieved.

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.

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.

The invention discloses an osmotic pressure terminal dynamic acquisition awakening system and method based on water level change, and belongs to the technical field of reservoir dam safety monitoring, the osmotic pressure terminal dynamic acquisition awakening system is composed of a machine shell, a controller and a lithium battery, and the controller is integrated with an MCU module, a power management module, a 4G / LoRa communication module, a vibration excitation / vibration pickup circuit module, an analog-to-digital conversion module, an external watchdog module and other modules. By analyzing the water level data and the change rate thereof, dynamically adjusting the acquisition period, accurately capturing the water level change process and supporting multiple wake-up mechanisms such as RTC timing wake-up, remote communication wake-up and external watchdog reset wake-up, the equipment can still realize bidirectional communication and remote interrogation functions while ensuring ultra-low power consumption; the reliability, the cruising ability and the intelligent level of the equipment in a complex environment are remarkably improved, and the system is suitable for reservoir dam osmotic pressure safety monitoring scenes.

The invention relates to the technical field of compressed air energy storage, in particular to a compressed air energy storage power station turbine side phase modulation operation control method which comprises the steps that a multi-time-scale state space model of a compressed air energy storage power station turbine side is established; an optimization function of the phase modulation stage is determined according to the coupling relation between the heat compensation amount of the turbine side in the phase modulation stage and the turbine exhaust temperature; adding an auxiliary state variable to the multi-time scale state space model to form an augmented state space model, and generating a power tracking target function according to the optimization function and the augmented state space model; and deploying the power tracking target function in the MPC controller, predicting operation parameters of the turbine side at the next moment by using the power tracking target function, and realizing phase modulation operation of the turbine side based on the predicted operation parameters. Therefore, ultra-low-power-consumption phase modulation operation of the turbine side of the compressed air energy storage power station can be achieved, and long-time small-flow economical and stable phase modulation operation of a generator set on the turbine side of the compressed air energy storage power station can be achieved.

The utility model relates to the technical field of electronic display, in particular to an electronic ink screen display system and equipment, the electronic ink screen display system comprises a display module and a main control module, and a wireless communication module is arranged in the main control module; the audio module comprises a digital-to-analog conversion circuit used for converting digital signals into audio data and an analog-to-digital conversion circuit used for converting the audio data into the digital signals, the digital-to-analog conversion circuit and the analog-to-digital conversion circuit are respectively connected with the main control module, and the display module adopts a reflective, bistable and low-power-consumption electronic ink screen and can display in power failure. The wireless communication module can remotely update display content through a network, the integrated audio module realizes voice picture switching, music playing and AI dialogue, the electronic ink screen display system is integrated into an ultra-low power consumption wireless terminal capable of listening, recording and displaying, and the temperature and humidity sensing module collects temperature and humidity data in the environment in real time. The display module visually displays the temperature and humidity information.

The invention relates to a subsurface buoy data real-time transmission method and system based on low-orbit broadband satellite communication, and relates to the technical field of ocean communication, the method is applied to a real-time transmission system, and the system is applied to a buoy device and connected with underwater equipment. And searching a low-orbit broadband satellite through the phased-array antenna, and connecting a communication link by using an optimal combination to realize communication with a shore-based server. And then, through the system, the underwater equipment can carry out subsurface buoy high-capacity original data transmission with the shore-based server, and the system monitors the network state during data transmission. And when the link is disconnected, the network connection is restarted by searching the optimal combination again, and the link is recovered. By dynamically selecting the optimal connection, the intelligent balance of communication link quality and energy consumption control is realized, the overall power consumption is reduced, the communication bandwidth is maximized, and the timeliness, integrity and continuity of multi-mode high-capacity data transmission of sensor original data, sonar audio, high-definition images and the like are ensured.

The invention provides a special BMS (Battery Management System) management system for a lithium fluorocarbon primary battery, which comprises a BMU main control board and 60 LMU control boards, the BMU main control board and the LMU control boards are arranged in a plastic shell on the side wall of the battery, and the LMU control boards are dispersed on the two sides of the battery, are connected with each string of battery cells of each branch by using acquisition cables, and are connected with a temperature monitoring sensor at the same time; the BMU main control board is arranged in the plastic shell right in front of the battery, the plastic shell is provided with an output plug-in, the output plug-in is welded and fixed with a PCB (printed circuit board) of the BMU main control board, power is supplied to an external load through the plug-in, the BMU main control board is connected with a communication line and transmits data to an upper computer regularly, and the BMU main control board is connected with the LMU control board through a daisy chain communication interface; the system has the advantages of ultra-low power consumption, high power output, high real-time performance, stable topological structure and the like, and meets the performance requirements.

The invention provides a Micro-LED-based optical interconnection chip and a packaging method, and relates to the field of chips, the Micro-LED-based optical interconnection chip comprises N optical modules, each optical module comprises an SoC chip, a light emitting unit and a light receiving unit, the light emitting unit and the light receiving unit are arranged on the SoC chip, and lenses are arranged on the light emitting unit and the light receiving unit respectively; the first substrate is provided with a through groove, each optical module is electrically connected with the first substrate, and the light emitting unit and the light receiving unit are located in the through groove; the back surface of the second substrate is provided with a waveguide structure, the waveguide structure comprises a plurality of waveguide blocks, the end part of each waveguide block is provided with a total internal reflection mirror TIR, and the light emitting unit on one SoC chip reflects light to the light receiving unit on another SoC chip adjacent to the SoC chip through the total internal reflection mirror TIR so as to realize signal transmission of the adjacent SoC chips. The Micro-LED array can become an ideal scheme for short-distance optical communication by virtue of the advantages of parallel architecture, ultra-low power consumption and high stability.

The invention provides the LDSW multifunctional wireless communication terminal capable of being connected with a mobile network and a smart phone and capable of being moved, and the working method of the LDSW multifunctional wireless communication terminal. When a network exists, the mobile gateway reader-writer can be connected with everything in an ultra-low power consumption communication mode, and the mobile gateway reader-writer, the ultra-long distance wireless network interphone and the low-cost wireless telephone communication terminal can be used as the mobile gateway reader-writer. When no network exists, the digital interphone can be an ultra-low power consumption confidential digital interphone, a radio and an MP3 player which can still receive emergency broadcast even in a power-off state; an ultra-low power consumption LDSW intelligent label which can be searched and positioned; more functions such as off-line voice recognition, text information editing and sending are realized by utilizing software and hardware resources of a smart phone connected with the mobile phone. Communication with the outside can be realized through a Beidou short message small base station fixed on the ground or on a vehicle; the method can be widely applied to various scenes, especially emergency relief communication scenes.

The present application relates to the field of intelligent door and window alarm, and particularly relates to a low-energy-consumption intelligent door and window safety alarm method and system based on environment sensing. The low-energy-consumption intelligent door and window safety alarm system based on environment sensing comprises an association calculation module, an initial score calculation module, a monitoring alarm module and a monitoring frequency updating module. The present application significantly optimizes system energy efficiency through a double periodicity scoring mechanism and a monitoring frequency dynamic adjustment strategy. An initial score generated based on user characteristic parameters establishes a basic energy consumption baseline, and then, in combination with deviation analysis and time sequence correction of short-period environment monitoring data, a second importance score is generated to accurately quantify the risk value of each scene. The dynamic regulation mode enables the device to maintain an ultra-low power consumption state during a risk-free period. Compared with a traditional fixed frequency, the monitoring scheme can significantly reduce energy consumption, and is particularly suitable for long-term stable operation of a battery-powered intelligent window control device.