51results about How to "Meet power consumption" patented technology

The invention provides a low power consumption hand-held electric nose system for on-site check, which comprises an electric nose box provided with a gas flow control system which gas chamber is at least provided with a mixture sensor array composed of low power consumption gas sensitive sensors, wherein the electric nose box is further provided with a necessary electric checking circuit, a wireless communication module and/or a USB module, a single chip and a DSP system for data processing and mode recognition, the electric checking circuit is provided with a CPLD circuit for checking QCM gas-sensitive sensor signal and a circuit for regulating electrochemical gas-sensitive sensor signal check and temperature humidity senor signal check. The invention can independently work without computer and automatically realize gas flow control, smell check, signal pretreatment and character extraction, mode recognition and display alarm or the like in an independent instrument, to meet the real-time, low power consumption and hand-held demands of on-site check.

A minisize distribution controlling system for satellite includes: the system attempering and controlling circuit, the 1553B bus interface circuit, the simulation quantity telemetering circuit, the digital quantity telemetering circuit, and the switch dictate outputting circuit. The invention can achieve the independent online monitoring of the satellite system with higher reliability and stability, brings the design idea and achieving method of data collection and processing based on FPGA technology.

The invention discloses an unattended house management system based on a narrow-band internet of things. The system comprises an intelligent door lock with a password unlocking function, a rental system server and a mobile phone APP. The server stores rental status of a house, and stores and sends room number, the state of the intelligent door lock corresponding to the room number and a control command for the intelligent door lock, and stores the room number and passwords of the intelligent door lock corresponding to the room number to one database. The mobile phone APP obtains the room number, the state of the intelligent door lock corresponding to the room number and the passwords of the intelligent door lock, controls the state of the intelligent door lock and the passwords of the intelligent door lock, and realizes renting and not renting in the rental system server. The rental system server resets the passwords of the intelligent door lock when the mobile phone APP transmits a not-renting signal, the passwords being random passwords. The intelligent door lock adopts a narrow-band internet-of-thing communication module to communicate with the rental system server.

The invention discloses a wearable pneumatic skiing exoskeleton power assisting device which comprises a thigh assembly, a crus assembly and a control device, wherein the lower end of the thigh assembly is connected with the crus assembly through a rotating assembly and an air spring bumper, and a thigh fixing pad is arranged at the upper end of the thigh assembly. By means of joint action of telescopic movement of an air spring and a variable damper, shock effects in skiing to knee joints are reduced, auxiliary force is provided for the knee joints, the gravity is compensated, and muscle fatigue in exercise is avoided; by means of designing and utilizing an embedded control system based on an ARM board and a PC, human-computer interaction and real-time control on a robot are better achieved; in addition, human motion parameters obtained through a gyroscope and an accelerometer can be used for detecting intention of a user; furthermore, the air spring and textile are utilized for automatically adjusting auxiliary torsion at the knee parts. The wearable pneumatic skiing exoskeleton power assisting device disclosed by the invention can be well applied to a wearable skiing exoskeletonrobot, can reduce energy consumption in skiing, improves comfortableness and has great application value.

The invention provides a display method and electronic equipment, and relates to the technical field of information display. The display method comprises the steps that when the electronic equipment is in a first screen-off state, the electronic equipment does not display information, and the electronic equipment collects a first image through a camera; when the first image comprises a face image,and the face image is matched with a preset condition, the electronic equipment enters a second screen turn-off state, and when the electronic equipment is in the second screen turn-off state, the electronic equipment turns off the screen to display information; and when the first image does not include the face image, or when the first image includes the face image, but the face image is not matched with the preset condition, the electronic equipment maintains a first screen-off state. According to the display method provided by the embodiment of the invention, the user state is monitored, and the display information in the screen-off state is determined if the user has the specific expression or the user is judged to be the owner, so that the problem of high power consumption caused byalways starting the screen-off display mode is avoided.

The invention discloses a voltage control method and device, is applied to electronic equipment, and belongs to the technical field of electronics. The electronic equipment comprises a power supply chip and a load chip, wherein an output end of the power supply chip is connected with a first pin of the load chip through a power supply network, the power supply network has first impedance, the first impedance is related to physical parameters of the power supply network in an initial state, and the method comprises the following steps of acquiring first impedance of the power supply network; based on the use duration of the electronic equipment, second impedance of a power supply network being obtained, and the second impedancebeing related to the aging degree of the power supply network; based on the actual working current, the first impedance and the second impedance of the power supply network, a first voltage and a second voltage of the power supply network being obtained, the firstvoltage being related to the first impedance, and the second voltage being related to the second impedance; obtaining a target voltage according to the first voltage, the second voltage and a third voltage required by the load chip; and adjusting the output voltage of the power supply chip to the target voltage.

The invention discloses a low-electric quantity starting-up method and user equipment. The low-electric quantity starting-up method comprises the following steps: the user equipment (UE) runs a first subprogram in a boot loader so as to judge whether the UE is charged through a universal serial bus (USB); if the UE is charged through the USB and the battery level is lower than a starting-up threshold value, the UE initializes the USB; when the USB enumerates the UE successfully, the UE runs a second subprogram in the boot loader so as to initialize an off-chip random access memory in the UE; the UE runs a third subprogram in the boot loader so as to read a system mirror image from an off-chip flash memory in the UE and load the system mirror image into the off-chip random access memory; the UE runs the system mirror image so as to complete starting-up.

The invention discloses a detection device and a method for phase encoding synchronous time difference of an ultrasonic flowmeter. A pair of ultrasonic transducers is used as a signal sending-receiving probe group and is respectively mounted on two sides of a pipeline with a certain distance; a measurement period of the synchronous time difference detection method comprises two processes, namely controlling the two ultrasonic transducers to be simultaneously used as a sending end to send 13-bit barker code signals of different frequencies and controlling the two ultrasonic transducers to stop sending signals and wait to receive signals, and using relevant processing methods, the time for the first ultrasonic transducer to send signals to the second ultrasonic transducer can be precisely measured and recorded, and the time for the second ultrasonic transducer to send signals to the first ultrasonic transducer can be precisely measured and recorded. According to the data, combining with geometric information, flow velocity and flow quantity can be calculated. Compared with a traditional time difference method, the detection method can meet the requirements of the time-difference method ultrasonic flowmeter on high measurement precision.

The invention relates to a layout method of an LED array in a visible light communication system. The method comprises the steps of firstly giving an indoor space model and obtaining space parameters in the indoor space model; obtaining radiation characteristics of a single point light source through analyzing the radiation node of the single point light source and then giving the radiation characteristics of the LED array; and determining the size of the LED array and building a mathematic model of taking the illumination uniformity and the communication reliability into account through the radiation characteristics of the array on an indoor ceiling and finally obtaining indoor LED array layout parameters capable of taking the energy consumption, the illumination and the communication reliability into account. The layout method is simple in operability, can be expanded to any size of room and has feasibility, and an effective way can be provided for indoor light source layout of the visible light communication system.

The utility model discloses a spraying system which is arranged in a wet-method flue-gas desulfurization and absorption tower. The spraying system comprises a plurality of layers of spraying layers, wherein, main spraying pipes, branch spraying pipes and a nozzle are arranged in the spraying layers, at least two parallel main spraying pipes are arranged on each spraying layer and two ends of the main spraying pipe are supported on the tower wall of the absorption tower. For the absorption tower with large cross section, after at least two main spraying pipes are adopted, support beams of the branch spraying pipes can be saved so as to reduce the erosion to the support beam; by adopting the solid and tapered nozzle that is arranged near the periphery of the tower wall of the absorption tower, the wall-flow phenomenon and the spraying amount of the slurry can be reduced and the spraying effect of the slurry can be ensured to be more effective.

The invention belongs to the field of battery control, and provides a multi-stack fuel cell control method, a control device, a system and a vehicle. The control method comprises the following steps that in a starting time period of a multi-stack fuel cell, the currently required power is averagely distributed to each fuel cell stack; in an operation time period after the multi-stack fuel cell is started, the aging degree of the corresponding stack at the current moment is obtained according to the magnitude of the output voltage of each fuel cell stack, and then the power variable at the next moment is allocated to each fuel cell stack according to the aging degree and the variation of the required power at the next moment, so that, the aging degrees of the multiple stacks of fuel cells tend to be consistent.

The invention belongs to the technical field of aluminum electrolyzing equipment, and discloses a novel energy-saving corrosion-resistant anode steel claw for electrolyzing aluminum and a design method thereof. The design method for the novel energy-saving corrosion-resistant anode steel claw for electrolyzing the aluminum comprises the following steps: performing simulation calculation on the designed maximal bearing force of Fmax, the safety coefficient of alpha, the effective cross section of the steel claw of S0 and the yield strength of the material of ReL when a half steel claw works byutilizing a computer, and acquiring the optimal proportional components of the material of the half steel claw; and calculating and analyzing the voltage drop of the half steel claw and a half aluminum claw in use by utilizing the computer, and acquiring an optimal composite claw voltage drop value. According to the novel energy-saving corrosion-resistant anode steel claw for electrolyzing the aluminum and the design method thereof, the voltage drop of an anode is reduced and the electric energy is saved by connecting the half steel claw and the half aluminum claw in parallel; the high-temperature corrosion of an anode claw caused by an electrolyte and a corrosive atmosphere can be effectively prevented by a thin graphene layer which coats the outside the overall anode claw, so that the service life of the anode claw is prolonged; the anode claw is not corroded; the conductive cross section is effectively remained; and the electric energy can also be saved greatly.

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 motor control device of an intelligent terminal and an intelligent terminal. The motor control device comprises a processor and a motor circuit. The processor is electricallyconnected with the motor circuit. The processor is used for controlling the motor circuit to drive a motor to vibrate. The motor control device further includes a switch circuit. The switch circuit is electrically connected with the processor. The motor circuit is electrically connected with the motor through the switch circuit. The processor is further used for generating a switch control signal. The switch control signal is used for controlling the on/off of the switch circuit. When the switch control signal is high in level, the switch circuit is in an on state, and when the switch controlsignal is low in level, the switch circuit is in an off state. According to the invention, by only adding the switch circuit and combining the switch control signal to control the on and off of the switch circuit, the intermittent driving of the motor is realized, the problem that the long vibration or the constant voltage vibration of the motor consumes a lot of electric energy is well solved, the circuit is simple, the cost is low, the power consumption is low and the size is small, and the requirements of the intelligent terminal can be well met.

The invention discloses a power amplifier chip biasing circuit based on a GaAs HBT process, and relates to a new generation information technology, thereby solving a problem that in the prior art, a temperature compensation means has negative effects on size, power and the like. A diode and a first resistor are used for obtaining temperature induction resistance; meanwhile, a plurality of HBT tubes are connected in series to replace traditional resistors, a bias voltage is led out from each HBT tube, and multi-order positive temperature coefficient voltage output is achieved. Furthermore, thevoltage is converted through a current mirror and a positive temperature coefficient second resistor, and a bias current for temperature drift suppression is provided for the power amplifier chip. Andthe requirements of mobile equipment on high integration level, high power output, high stability and low cost are effectively met. Therefore, strict requirements of the power amplifier chip of the mobile equipment in the aspects of size, power consumption, long-term sustainable work and the like can be met with very low complexity and relatively high reliability in the aspect of implementation,and the power amplifier chip biasing circuit has a good popularization value.

The invention discloses a high-power power supply backplane for high density assembling. The high-power power supply backplane comprises a PCB. At least one basic power supply unit is formed on the PCB. The basic power supply unit comprises an incoming wire pad L, an incoming wire pad N, a power supply L layer, a power supply N layer and at least one power supply interface. An insulating medium isfilled between the power supply L layer and the power supply N layer. The incoming wire pad L is electrically connected with the power supply L layer.The incoming wire pad N is electrically connectedwith the power supply N layer.The power supply L layer and the power supply N layer are respectively electrically connected with the L pin and the N pin of the power supply interface. The high-powerpower supply backplane has good application flexibility and high adaptability and can realize high-density assembling of calculation plug-ins and has small occupied space, uniform heating, high powersupply safety and good maintainability.

The invention discloses a double-section coaxial toothed cathode pulse plasma thruster, and belongs to the technical field of micro satellite aerospace propulsion. The product mainly comprises a first-stage cathode, a first-stage anode, an insulating coating layer, a second-stage cathode, a second-stage anode, a propellant, an insulating outer shell, an insulating base, a supply spring and a spark plug. The inner surface of the primary cathode is provided with sharp teeth, so that the primary cathode is easier to discharge compared with a common cylindrical inner surface by utilizing a point discharge principle, and the system safety is improved; and the toothed cathode is used, so that the electric field and the current between the electrodes are more uniform, the non-uniform ablation of the propellant is improved, the indentation of the end face of the solid propellant in the continuous working process is reduced, the reliability is remarkably improved, and the working life is prolonged. The secondary cathode is in the shape of an expanded spray pipe, so that charged particles and neutral gas generated by discharging between the primary electrodes are accelerated more sufficiently, and the primary electrodes and the secondary electrodes are charged by respective independent capacitors, so that the reasonability of energy distribution is improved, and the overall acceleration efficiency of the thruster is improved.

The invention discloses a power management circuit with low power consumption. The power management circuit comprises a reference circuit, a comparator, a clock generation circuit, a power acquisitionsensor, a switching circuit and a charged module. One end of the reference circuit and one end of the power supply acquisition sensor are respectively connected with one end of the comparator. The other end of the comparator is connected with one end of the clock generation circuit, the other end of the clock generation circuit is connected with the control end of the switch circuit, one end of the power supply acquisition sensor is further connected with one end of the switch circuit, and the other end of the switch circuit is connected with the charged module. Compared with the prior art, the power consumption of the power management circuit is reduced.

The invention discloses a power management system, and relates to the technical field of integrated circuits. The power supply management system comprises an ultra-low power consumption voltage stabilizer module for supplying power to a load module in a standby mode, a high power consumption voltage stabilizer module for supplying power to the load module in a working mode, and a controller, the switching module is used for receiving an enable signal to switch off the high-power-consumption voltage stabilizer module and switch on the ultra-low-power-consumption voltage stabilizer module when the load module enters a standby mode; and when the load module enters the working mode from the standby mode, the high-power-consumption voltage stabilizer module is switched on, and then the bilateral selection switch module of the ultra-low-power-consumption voltage stabilizer module is switched off. According to the power management system, the voltage stabilizer modules with different power consumption and different performances are selected through the bilateral selector switch module to supply power to the load module, and the power consumption and performance requirements of the load module in different modes are met.

The invention discloses a frequency hopping frequency testing method and device in built-in testing of frequency hopping communication equipment, and relates to the technical field of communication equipment testing methods and testing equipment. The method comprises the following steps o: detecting the power of a frequency hopping signal to obtain a frequency hopping rate waveform, wherein the frequency hopping rate waveform is subjected to NOT gate reversing and then is combined with a reference clock waveform to form a frequency hopping rate counting waveform; obtaining a frequency hoppingfrequency value according to the frequency hopping frequency counting waveform, taking a rising edge of the power detection output waveform as a test starting signal of each frequency hopping frequency, starting a test delay t1, then performing a frequency test of each frequency within t2 time, counting the frequency of each frequency, and obtaining a frequency hopping frequency set after countingfor a period of time. According to the method, a frequency hopping power detection output waveform is adopted as triggering of frequency hopping frequency counting, testing of the frequency hopping frequency is achieved, and testing of a frequency hopping frequency set is achieved through statistics of the frequency hopping frequency for a period of time.