46results about How to "Ultra low power consumption" patented technology

Disclosed is laser beam scanning apparatus in the form of an electronically-controlled mechanically-damped off-resonant laser beam scanning mechanism. The scanning mechanism comprises an etched scanning element having a small flexible gap region of closely-controlled dimensions disposed between an anchored base portion and a laser beam deflecting portion The light beam deflecting portion supports a permanent magnet and a light beam deflecting element (e.g., mirror or hologram). A reversible magnetic force field producing device (e.g., an electromagnet) is placed in close proximity with the permanent magnet so that it may be forcibly driven into oscillation in response to electrical current flowing through the electromagnet. The resonant frequency of oscillation of the laser beam deflecting portion relative to the anchored base portion is determined by the closely controlled dimensions of the flexible gap region set during manufacture. The steady-state frequency of oscillation of the laser beam deflecting portion is determined by the frequency of polarity reversal of the electromagnet, which is electronically controlled by the polarity of electrical current supplied thereto.

A method of video surveillance with a mobile station using cellular communication including the steps of: a) applying power to a mobile station which includes a router in communication with a wireless transceiver for transmitting data wirelessly; b) the router in communication with an private network in the mobile station; c) the private network in communication with surveillance devices attached to the mobile station; d) the router in communication with a private APN via the wireless transceiver over a cellular network and the mobile internet to a monitoring center; and e) the monitoring center receiving wireless surveillance data from the surveillance devices and transmitting control data wirelessly to the devices such that surveillance monitoring and device control is completed wirelessly over a series of networks.

A spin-wave waveguide includes a ferromagnetic thin film resembling a wire in shape. A part of the ferromagnetic thin film, large in film thickness, is formed at one end of the ferromagnetic thin film, and a part of the ferromagnetic thin film, small in film thickness, and a part of the ferromagnetic thin film, large in film thickness, are alternately formed on the same plane, for at least not less than one cycle. A part of the ferromagnetic thin film, large in film thickness, is formed at the other end of the ferromagnetic thin film, wherein an insulating film, and an electrode film are stacked in this order on the ferromagnetic thin film in the part of the ferromagnetic thin film, large in film thickness.

The invention discloses an antitheft system for a motorcycle. The antitheft system comprises a GPRS (general packet radio service) transmission circuit, a GPS (global positioning system) positioning circuit, an anomaly detection circuit, an external alarm circuit, a power circuit, a Bluetooth circuit and a processor control circuit. The anomaly detection circuit is in communication connection with the processor control circuit, the processor control circuit is in control connection with the external alarm circuit, and the GPS positioning circuit and the external alarm circuit are in communication connection with external equipment by the GPRS transmission circuit or the Bluetooth circuit; the power circuit comprises an external power source, a built-in power source and a charging circuit. The antitheft system for the motorcycle has the advantages that the antitheft system is ultra-low in power consumption during sleep, has short positioning time of 1S during service and has a server APP (application) antitheft reminding function and a host module short-message reminding antitheft function, the power sources can be automatically switched over, built-in flash and fault diagnosis are integrated with each other, and firmware and flash firmware can be remotely upgraded.

Described is a system and method for ultra-low power consumption state deep online learning. The system operates by filtering an input image to generate one or more feature maps. The one or more feature maps are divided into non-overlapping small regions with feature values in each small region pooled to generate decreased size feature maps. The decreased size feature maps are divided into overlapping patches which are joined together to form a collection of cell maps having connections to the decreased sized feature maps. The collection of cell maps are then divided into non-overlapping small regions, with feature values in each small region pooled to generate a decreased sized collection of cell maps. The decreased sized collection of cell maps are then mapped to a single cell, which results in a class label being generated as related to the input image based on the single cell.

A bio-information detecting sensor according to an embodiment of the present invention includes a flexible substrate, light emitting parts disposed on the flexible substrate, and a light receiving part disposed on the flexible substrate and having a donut shape surrounding the light emitting parts.

The invention discloses a current mode reference voltage source based on downward current compensation. The current mode reference voltage source can work under quite low power voltage, and output voltage of the reference voltage source can be changed by adjusting device parameters. The current mode reference voltage source comprises a compensation current generating circuit and a reference voltage generating circuit.

The invention provides a wireless geomagnetic vehicle detection device and system, and relates to the field of vehicle detection devices. The wireless geomagnetic vehicle detection device comprises an information collection module, a communication module and a control module, the information collection module is coupled with the control module and used for collecting parking information of a vehicle, the control module is used for generating an analysis result according to the parking information of the vehicle, and the communication module comprises an NB-IoT unit and an antenna and is used for sending the analysis result to a network. According to the wireless geomagnetic vehicle detection device, through the usage of the NB-IoT unit, a signal relay station does not need to be installed, massive connections can be established, the device has the advantages of being not easy to interfere with, low in power consumption and long in service life, and the construction and maintenance costs are saved. The system comprises a server, a client side and the wireless geomagnetic vehicle detection device, and the wireless geomagnetic vehicle detection device is connected with the server through a public mobile base station. The system supports connections of massive devices and is wide in application range.

The invention discloses a power supply switching circuit employing a comparator. The power supply switching circuit comprises a comparator, a first inverter, a second inverter, a first buffer, a second buffer, a first PMOS switch tube PFET1, a second PMOS switch tube, a third PMOS switch tube and a fourth PMOS switch tube. The invention further discloses a signal transmission method of the power supply switching circuit employing the comparator. The power supply switching circuit has the technical effects that (1) the switching threshold is accurate, and the switching logic is obtained by judging the sizes of an off-chip input power supply and a backup power supply; (2) the power supply switching is reliable, and the jitter and the instability of the overall power supply switching circuit caused by the jitter of comparator output when the power supply voltage is near a threshold point are avoided by a positive feedback circuit; and (3) the applicable process range is wide, and the power supply switching circuit is suitable for all MOS technologies due to adoption of a mainstream MOS technology design at present.

The invention relates to a battery power consumption control method and device and an unmanned aerial vehicle. The battery power consumption control method comprises the steps that a battery is determined to be in the state of no charging current, no discharging current and no communication; the electrical performance parameters of the battery are collected, wherein the electrical performance parameters comprise the minimum cell voltage of the battery; according to the electrical performance parameters, whether the minimum cell voltage is less than or equal to a first voltage threshold; and ifthe minimum cell voltage is less than or equal to the first voltage threshold, a voltameter and a microprocessor are controlled to start a deep sleep mode. According to the invention, the method usesdual-effect control of the voltameter and the microprocessor; the battery can achieve ultra-low power consumption under certain conditions; and the battery is protected from overdischarge to the greatest extent.

The invention provides an intelligent energy information acquisition management method and system. The method comprises the following steps: establishing a remote communication connection relationshipbetween an information management center and at least one system gateway; establishing a star-class communication network formed by connecting one system gateway with at least one subordinate meter terminal thereof in a communication manner; caching, by the system gateway, latest data sent by the subordinate meter terminal, and when a reading instruction issued by the information management center is received, sending the latest data to the information management center; and caching, by the system gateway, a control instruction and configuration information which correspond to the subordinatemeter terminal and are issued by the information management center, and issuing the control instruction and the configuration information when the corresponding meter terminal is in a receiving state. The intelligent energy information acquisition management method provided by the invention achieves concentrated and reasonable control and management of energy information in a one-master multi-slave manner and also achieves ultra-low energy consumption of a whole meter machine in consideration of the timeliness of meter reading.

The invention discloses a data safety protection device which comprises an energy storage battery, an action detection module, a power supply module and a microprocessor. The electric energy output end of the energy storage battery is connected with the action detection module and the power supply module; the action detection module is used for controlling an internal switch to be closed when an external trigger action is detected, and generating a destruction signal and a trigger signal; the power supply module converts electric energy provided by the energy storage battery into stable working voltage required by the microprocessor after receiving the trigger signal; the microprocessor generates a power supply self-locking instruction after being powered on, and controls the power supplymodule to lock the current power supply state to ensure that the power supply module continuously supplies power to the microprocessor after the internal switch fails; a local data destruction actionis executed according to a destruction signal generated by the action detection module. The battery supplies power to the microprocessor to execute the destroying action in emergency, the self-lockingfunction of the power supply module is matched, the problem that the electric quantity of the battery is insufficient at the key moment is solved, and the high-reliability and ultra-low-power-consumption safety protection capacity of equipment is guaranteed.

Disclosed is laser beam scanning apparatus in the form of an electronically-controlled mechanically-damped off-resonant laser beam scanning mechanism. The scanning mechanism comprises an etched scanning element having a small flexible gap region of closely-controlled dimensions disposed between an anchored base portion and a laser beam deflecting portion The light beam deflecting portion supports a permanent magnet and a light beam deflecting element (e.g., mirror or hologram). A reversible magnetic force field producing device (e.g., an electromagnet) is placed in close proximity with the permanent magnet so that it may be forcibly driven into oscillation in response to electrical current flowing through the electromagnet. The resonant frequency of oscillation of the laser beam deflecting portion relative to the anchored base portion is determined by the closely controlled dimensions of the flexible gap region set during manufacture. The steady-state frequency of oscillation of the laser beam deflecting portion is determined by the frequency of polarity reversal of the electromagnet, which is electronically controlled by the polarity of electrical current supplied thereto. In the illustrative embodiments, the forcing frequency of the electromagnet is selected to be at least ten percent off (i.e., greater or less than) the natural resonant frequency of the laser beam deflecting portion of the scanning element. The steady-state frequency of oscillation can be set at the time of manufacture to be any one of a very large range of values (e.g., 25-127 Hz) for use in both low-speed and high-speed laser scanning systems.

The invention discloses a GaN-based light emitting diode (LED) array micro display device and a fabrication method thereof based on a selective region epitaxial growth technique. The fabrication method of the device comprises the following steps of: (A) fabricating mask membranes arranged in a strip shape on a substrate, and growing a strip-structurized n-type GaN array through the selective region epitaxial growth technique; (B) fabricating a mask membrane provided with periodically-distributed opening holes on the strip-structurized n-type GaN array, and growing a three-dimensional structurized miniature LED array through the selective region epitaxial growth technique; (C) fabricating a strip-shaped transparent conductive layer on the surface of the three-dimensional structurized miniature LED array; and (D) respectively fabricating a negative electrode and a positive electrode on the strip-structurized n-type GaN array and the strip-shaped transparent conductive layer. According to the method, the selective region epitaxial growth technique is used for growing a GaN-based miniature LED, the problem of current leakage caused by a dry etching method for fabrication the miniature LED is solved, and a miniature display device having matrix addressing, low power consumption and high brightness is provided.

The embodiment of the invention provides a memory data protection method, device and circuit, which can store a large amount of data stored in a volatile memory of a server into a nonvolatile memory on the conditions that the CPU of the server is not utilized, and the CPU of the server cannot work normally with the ultra-low power consumption. The method comprises the steps that whether the CPU of the server works normally or not is detected; and when it is detected that the CPU of the server cannot work normally, a low-power-consumption processor is used for carrying the data from the servermemory to the nonvolatile memory according to a preset carrying rule.

The invention relates to driver actual road test equipment, in particular to a vehicle-mounted power supply control system. The vehicle-mounted power supply control system is characterized by comprising an automotive relay, a power supply isolation module, a current sensor, an industrial personal computer, an analog/digital (AD) conversion circuit, a bleeder circuit, a micro-programmed control unit (MCU) and a drive control circuit. 12V input voltage enters the power supply isolation module after passing through the automotive relay; one output of the power supply isolation module is used for supply power for vehicle-mounted equipment; the other output of the power supply isolation module is connected to the power supply input end of the industrial personal computer through the current sensor; a voltage signal is output to the AD conversion circuit for conversion by the current sensor and then is sent to the MCU; an uninterrupted identification data packet sent outside by a CC3 serial port of the industrial personal computer is output to the MCU after being converted into a standard transistor-transistor logic (TTL) signal by the bleeder circuit; and a control signal is input into the drive control module by the MCU so as to turn on or off the automotive relay to power on or off the equipment.

An integrated circuit device includes: a host interface that receives a standard specification command and an internal specification command; a register unit; a logic circuit unit; and a first oscillation circuit, wherein the first oscillation circuit is controlled on the basis of a first command as the internal specification command and shifts to a state in which power supply voltage is supplied but oscillation is stopped, and the first oscillation circuit is controlled through the register unit on the basis of a second command as the internal specification command and returns to an oscillation state from the state in which the oscillation is stopped.

The invention relates to a low-power-consumption control circuit and intelligent equipment. The control circuit comprises an MCU, an activation module which is used for activating the MCU according to a trigger signal, and enabling the MCU to be powered on and started, a control module which is used for keeping the MCU and a power supply battery conductively connected after the MCU is activated, and a transaction category judgment module which is used for acquiring the level of a test point and judging the category of a transaction to be processed according to the level of the test point, so as to make the MCU execute the processing flow of the transaction to be processed of the category; the test point corresponds to a trigger signal; and the control module is also used for cutting off the power supply of the MCU when the MCU is idle, so that the MCU is powered down. According to the low-power-consumption control circuit and intelligent equipment of the invention, the activation module triggered by hardware is adopted to activate the MCU, so that the MCU is electrified and started, and the corresponding processing flow is executed according to the judged category of the transaction to be processed; and when the MCU is idle, the power supply of the MCU is cut off, so that the purpose of ultra-low power consumption is achieved.

The invention relates to a touch faucet unit and a water supply system with the touch faucet unit. The touch faucet unit comprises a touch faucet with all positions on the surface capable of generating touch induction. The touch faucet is connected with a touch detection circuit. When the touch faucet generates induction, induction signals are transmitted to a controller connected with the touch detection circuit. The touch faucet unit further comprises an electromagnetic valve drive circuit connected with the output end of the controller. The electromagnetic valve drive circuit controls an electromagnetic valve connected with the electromagnetic valve drive circuit to act. The electromagnetic valve is installed on a water way pipeline and acts to control a water way to be connected or disconnected. The touch faucet unit further comprises a voltage detection circuit connected with the controller. The voltage of the touch faucet is detected through the voltage detection circuit. By the adoption of the touch faucet unit, water can flow out simply through a touch on the surface of the touch faucet, and water can be stopped through a touch on the surface of the touch faucet again. The touch faucet unit further has an overtime automatic water cut-off function, and a water saving effect is achieved.

The invention relates to an intelligent pharmacy of traditional Chinese medicine based on electronic paper. The intelligent pharmacy of traditional Chinese medicine mainly comprises a charging system, an attendance system, a medicine dispensing system and an electronic paper system, wherein the electronic paper system comprises a background server, a wireless base station, an electronic paper medicine taking card and an electronic paper recycling system; the background server is connected to the wireless base station via a wireless network; the wireless base station is also connected to the electronic paper medicine taking card and the electronic paper recycling system via the wireless network; the charging system, the attendance system and the medicine dispensing system are connected to the background server; the medicine dispensing system is an intelligent medicine cabinet; the electronic paper recycling system is arranged at the middle part of the intelligent medicine cabinet in a penetrating manner; the electronic paper medicine taking card is capable of displaying the prescription filling state, the pre-estimated waiting time and the patient information, taking medicines without paper, accurately taking medicines and avoiding the situation that the medicines are wrongly taken.

The invention discloses a multi-function transceiving circuit, and relates to the technical field of transceiver circuits. The multi-function transceiving circuit comprises an antenna-end channel selecting switching circuit, a receiving channel low-noise amplifier circuit, a driving-end channel selecting switching circuit, a transmitting channel power amplifier circuit and transceiver branch power source controlling circuit. The receiving channel low-noise amplifier circuit and the transmitting channel power amplifier circuit are current reuse circuits. The antenna-end channel selecting switching circuit and the driving-end channel selecting switching circuit are adopted switch floating circuits. The multi-function transceiving circuit is characterized by complex integrated functions, ultra-low power consumption, high power addition efficiency, high requirements on temperature stability and the like. As combined with the chip processing technique characteristics, varied novel technologies such as current reuse technology of amplifiers and float switches are employed innovatively, various specified requirements of ultra-low power of receiving braches and high power addition efficiency of transmitting branches are met, the whole circuit topology for different application backgrounds is optimized and innovated, and various indicators are achieved.

The invention discloses a non-contact respiration monitoring method based on visual calculation. The method comprises the following steps: acquiring a video image by using a camera; positioning a region of interest (ROI); graying processing is carried out; carrying out phase motion amplification processing on the respiratory motion by utilizing an innovatively improved phase motion amplification algorithm; extracting the respiratory signal after the phase motion amplification processing; kalman filtering processing is carried out on the extracted respiration signals; using an SVM classifier toclassify the respiratory signal waveform after Kalman filtering; judging whether the breathing is hypopnea breathing or not; in the case of non-low ventilation, a band-pass filter and fast Fourier transform are used for calculating the respiratory rate, the problems existing in a contact type detection method in the prior art are solved, the ultra-low-power-consumption non-contact type monitoringmethod based on visual calculation is provided, a conventional phase motion amplification method in the prior art is subverted, and the accuracy of phase motion amplification is improved. The accuracy of non-contact respiration monitoring results and respiration rate calculation is improved, and the method has high operability and practicability.

The invention discloses a programmable indoor intelligent temperature controller which is provided with a temperature control shell. The programmable indoor intelligent temperature controller is characterized in that the temperature control shell is provided with a microprocessor, a power supply circuit, a button circuit, a liquid crystal display circuit, a wireless module circuit and a temperature and humidity acquisition circuit. The structure is adopted so that the programmable indoor intelligent temperature controller has the advantages of being stable in performance, extremely low in power consumption and extremely long in the service life.

The invention discloses a multi-channel sensor detection device, which, particularly, is a sensor detection device which is multi-channeled, and good in man-machine interaction and instantaneity, and which is also a detection device which is used for collecting multi-channel force/ displacement sensor signals, monitoring the detection process in real time and reading test storage information. The invention discloses a multi-channel sensor real time detection system, comprising an ARM chip, and a signal conditioning circuit, an upper computer, an SD chip, and a liquid crystal touch screen which are connected to the ARM chip, wherein all the signal conditioning circuit are connected to the sensor. The multi-channel sensor real time detection system is fast in data transmission, small in volume, super low in power consumption and low in cost, and overcomes the disadvantages in the prior art that the detection channels are less, the man-machine interaction is not strong, and intelligent detection lacks. As a result, in order to overcome the above problems, the force/displacement sensor detection device which has multiple detection channels, can perform real-time detection and displaying and has the intelligent detection function.