198results about How to "Avoid wasting power" patented technology

The invention discloses a method and a device for power supply management of wearable equipment, and relates to the technical field of communication. After the adoption of the technical scheme, the electricity waste caused by the use of unused function modules is avoided, the use time of the wearable equipment is increased, and further, the experience of users is enhanced. The method comprises the following steps that the use state of the wearable equipment is detected; and the work mode of the wearable equipment is determined according to the use state of the wearable equipment. The method and the device can be used in the power supply management of the wearable equipment.

The invention provides a chip dynamic voltage regulating circuit and terminal equipment. The voltage regulating circuit comprises a parameter detection module, a PWM (Pulse Width Modulation) signal generation module and a power supply module, wherein the parameter detection module is used for detecting the attribute parameters of a chip; the PWM signal generation module is used for generating a corresponding PWM digital signal according to the attribute parameters, and a low pass filter converts the PWM digital signal into an analog signal with DC voltage; and the power supply module comprises a DC-DC converter or a low dropout linear regulator, the feedback input end of an error amplifier in the power supply module is respectively connected with the signal output end of the PWM signal generation module and the voltage output end of the voltage regulating circuit, and the power supply module is used for regulating an output voltage according to the feedback analog signal and the feedback signal at the voltage output end of the voltage regulating circuit. According to the invention, the traditional power supply circuit structure can be used, the size of the output voltage is accurately regulated through the analog signal converted from the PWM digital signal based on the variation of the chip attribute parameters, so that the dynamical voltage regulation of the chip can be achieved at a lower cost, and the waste of power consumption is avoided.

The invention discloses a method for self-coherence detection of an optical carrier radio frequency link based on polarization multiplexing. The invention relates to the technical field of optical communication and microwaves. The method is shown in the attached drawing, and comprises a laser source, a vector signal source, a polarization controller, a polarization beam splitter, a polarization multiplexing Mach-Zehnder modulator, a single-mode fiber, an erbium-doped fiber amplifier, a 90-degree optical coupler and a balance photoelectric detector. According to the method, two paths of different radio frequency electric signals are used for respectively carrying out intensity modulation and phase modulation on two optical carriers with orthogonal polarization states in a polarization multiplexing Mach-Zehnder modulator; frequency mixing is carried out through a 90-degree optical coupler; signal processing is performed on the electric signal output by the balance photoelectric detectorto recover an original electric signal; the polarization multiplexing mode is used for improving the utilization rate of spectrum and light source power; self-coherent detection is used at the receiving end; and a local oscillation light source and a complex phase noise elimination algorithm are avoided, so that the system cost is reduced, and the requirement for the line width of the laser is lowered.

The present invention provides a charging method and a mobile terminal. The method comprises a step of obtaining the number of first cycle charging of a battery, a step of determining a first charging parameter corresponding to the number of the first cycle charging according to a pre-established first corresponding relation between the cycle charging number and a charging parameter, and a step of charging the battery according to a first charging parameter. Through establishing the first corresponding relation between the cycle charging number and the charging parameter in advance, the charging parameter is determined, thus the charging parameter is dynamically changed with the number of cycle charging, and the problem that the charging mode of existing electronic equipment mostly is charging with a constant charging parameter and the service life of the battery is shortened is solved.

The invention provides a photovoltaic power optimizer and a control method and device thereof and a photovoltaic power generation system. The photovoltaic power optimizer comprises a power optimization module, a bypass module and a control module. The bypass module is connected with the input end of the power optimization module, the output end of the power optimization module and the control module. The control module is connected with the power optimization module. The control module is used for controlling the bypass module to be conducted when the fault of the power optimization module isdetected so that the power optimization module having the fault is enabled to be bypassed, and a photovoltaic cell component is enabled to be directly connected in series with other cell packs of thephotovoltaic power generation system and accessed to the inverter. Then the power generated by the photovoltaic cell component can be effectively outputted so that waste of power caused by the fault of the power optimization module can be avoided.

The invention relates to an undamped hydraulic yaw system based on pressure detection and a control method of the undamped hydraulic yaw in the field of wind power generation technology. The undamped hydraulic yaw system comprises a motor, an oil pump, a relief valve, an oil tank, a pressure relay, an energy accumulator, a safety valve group of the energy accumulator, a proportional valve, a single-way valve, a low-speed high-torque hydraulic motor, a yaw gear, a presser sensor, a yaw coder, a cabin inner gearing ring, a yaw counter and an anemoscope. The control method of the undamped hydraulic yaw system comprises the following steps: using a position detection method to realize the function of fast aiming the wind direction during the yawing; using a pressure detection method to realize the function of precisely aiming the wind direction; and at the same time, not introducing damp. The undamped hydraulic yaw system provided by the invention is characterized in that: the detection error of the anemoscope can be prevented from influencing the yaw system based on the accurate wind-direction aiming function for pressure detection, the damped yaw is canceled during the yawing to reduce the frictional abrasion caused by braking, so that the power waste caused by the traditional damped yaw is avoided.

The invention provides a power control method and a power control device. The method comprises steps: information is determined to be transmitted on an unlicensed carrier; power control is carried out on the unlicensed carrier in at least one of the following manners: power control is carried out according to a power spectral density (PSD) based on a resource element (RE); the PSD based on the RB is adjusted, and power control is carried out according to the adjusted PSD; power control is carried out according to the PSD of actual data and the PSD of an occupying signal, wherein the actual data are data actually transmitted by a transmitting terminal and the occupying signal is a signal used for occupying a channel; power control is carried out according to a power offset; power control is carried out by means of adaptive adjustment or semi-static adjustment CCA detection of a threshold; and power control is carried out by means of controlling the range of values of at least one parameter related to power control. Thus, the problem that the power of the unlicensed carrier can not be controlled effectively in a related technology can be solved.

The invention provides an intelligent terminal and a control method thereof, wherein the intelligent terminal comprises a first display screen which is arranged on a back panel of the intelligent terminal; the first display screen comprises a first position of a front camera of the intelligent terminal. The method comprises the following steps: when shooting, obtaining a first instruction for starting one camera of the intelligent terminal; determining a target camera according to the instruction, wherein the target camera comprises a front camera and a rear camera of the intelligent terminal;starting a corresponding target display screen according to the target camera, wherein the target display screen comprises a first display screen and a second display screen; the front camera corresponds to the first display screen, and the rear camera corresponds to the second display screen. Therefore, a display screen is added on the back panel of the intelligent terminal so as to realize thefunction of the front camera; thus, the front camera of the front panel is cancelled; the front panel space is released; and the screen duty ratio of the intelligent terminal is further improved.

The invention discloses an information processing method and electronic equipment. The method comprises the following steps: receiving a first awaking request for awaking a system, sent by a first application program in the electronic equipment; judging whether the first awaking request satisfies a preset condition, and obtaining a first judged result, wherein the preset condition is specified as that in a first preset period, the number of times for successfully awaking the system is less than or equal to the preset number of times; when the first judged result indicates that the first awaking request satisfies the preset condition, generating a first awaking instruction for awaking the system; executing the first awaking instruction, so that the system is in an awaking state.

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.

A method for judging defrosting of heat pump water heater includes setting evaporation temperature sensor and defrosting temperature sensor on outdoor unit heat exchanger, detecting evaporation temperature T1 and defrosting temperature T2 during heating mode operation, setting evaporation temperature sensor and defrosting temperature sensor on outdoor unit heat exchanger, setting evaporation temperature sensor and defrosting temperature sensor on outdoor unit heat exchanger, setting evaporation temperature sensor and defrosting temperature sensor on outdoor unit heat exchanger, setting defrosting temperature sensor on outdoor unit heat exchanger and detecting defrosting temperature T2 during heating mode operation. Step S2: Judge T2-Whether T1 > [delta] T is tenable or not, if so, it is not frosted, and continues to operate under normal heating condition; 3 if not, proceed to step 3; 3, enter defrosting mode; Step S4: Judge T1 Whether T 2 >=[delta] T 'is true or not, if so, defrost mode should be maintained; If not, exit defrosting mode and return to heating mode. The method provided by the invention can judge whether the outdoor heat exchanger is frosted or not, so as to defrostthe outdoor heat exchanger accurately and efficiently.

The invention discloses a stylus and a coding signal control method, belongs to the technical field of electronics, and can solve the problem of power consumption waste caused by insensitive touch operation of the stylus or relatively high coding voltage. The stylus comprises a coding signal output unit and a control unit connected with the coding signal output unit, the coding signal output unitis used for outputting a first coding signal; the control unit is used for controlling the coding signal output unit to adjust the coding signal; and the coding signal output unit is also used for outputting a second coding signal, and the coding voltage amplitude of the second coding signal is different from the coding voltage amplitude of the first coding signal. The stylus is applied to a sceneof outputting a coding signal.

The invention discloses a flashlight control method and system used during mobile terminal photographing. The method comprises the steps that 1 when it is detected that new software with a photographing function exists in a mobile terminal, the image frame value stored by the software during photographing is detected; 2 the software and the image frame value stored by the software during photographing are stored in a record chart; 3 when a user uses the software for photographing, the image frame value stored by the software during photographing is obtained from the record chart, and turning-on and turning-off of a flashlight in the photographing process are controlled according to the image frame value. According to the flashlight control method and system, image frame values, namely the frame orders of images, stored by various software during photographing are recorded according to the characteristics of the various software during photographing, then, during photographing, turning-on and turning-off of the flashlight are controlled according to the recorded data. The flashlight control method and system avoid the problem that electricity is wasted due to the fact that the flashlight is turned on for a long time during photographing, and save the electric quantity of the mobile terminal.

The invention relates to a remote numerical control multipurpose uphill and downhill trolley for an automated conveying production line, which comprises a trolley capable of running on a flat road or an uphill ramp and a downhill ramp and five trolley lines additionally arranged on one side of a track. An electric cabinet frequency converter, a hanging fixture and the like are arranged on the trolley and are communicated with a master control cabinet through the trolley lines and a cable. In the remote numerical control multipurpose uphill and downhill trolley, the technology of numerical control and half-duplex communication is adopted particularly, so that the trolley can be commanded manually or automatically by PLC programs to complete complex actions such as quick and slow advance and retreat, lifting, release, clamping and the like within the range of 3,000 meters; the technology of automatic frequency control of motor speed is also adopted, so that the trolley can move on the uphill ramp and the downhill ramp or a curve road at a low speed and move on the flat road at a high speed; and the technology of dual braking and electric speed limit is adopted to ensure the safety of the trolley on the uphill ramp and the downhill ramp. The remote numerical control multipurpose uphill and downhill trolley provides novel three-dimensional space automated material conveying equipment with omnipotency, high efficiency and low cost for manufacturers such as automobiles, engines, machinofacture and the like.

The invention relates to an electric power steering system and method based on a double-motor planet gear structure. The electric power steering system comprises a steering wheel, a torque coupling gear, a second power motor gear, a speed reducer, a first power motor, a second power motor, a synchronizer, a planet gear mechanism and a first power motor gear, wherein a first steering shaft and a second steering shaft are sequentially arranged between the steering wheel and the speed reducer; the first power motor gear is arranged on an output shaft of the first power motor, and is connected with the planet gear mechanism through a connecting shaft; the torque coupling gear is arranged on an output shaft of the second power motor, and the second power motor gear is coaxially arranged on one side of the torque coupling gear; the first power motor gear is meshed with the torque coupling gear; and the synchronizer is arranged between the torque coupling gear and the second power motor gear. According to the electric power steering system disclosed by the invention, through the cooperation of a plurality of electromagnetic clutches, influence caused by mutual drive of motors is avoided, so that the situation that the power capability is wasted is avoided.

The invention discloses a novel self-focusing vortex light beam generation method for inhibiting a turbulence effect. The problems of light beam expansion and wavefront phase distortion caused when vortex light beams are propagated in turbulent media are mainly solved. According to the scheme, the method comprises the steps of 1) detecting a channel signal-to-noise ratio [gamma] according to a channel environment; 2) comparing the signal-to-noise ratio [gamma] of the current channel with a threshold value [eta], if [gamma] is greater than or equal to [eta], executing the step 3), otherwise, executing the step 4); 3) generating a sustainable self-focusing needle-shaped single vortex light beam; 4) generating a high-power array needle-shaped vortex light beam with the focusing position beingadjustable and controllable; and 5) loading a filter factor to the obtained vortex beam by using a spatial filter, and filtering out the aliasing mode in the beam to obtain the novel self-focusing vortex light beam required by the system. According to the invention, the novel self-focusing vortex light beam required by the system is selected according to the channel environment under different conditions by considering the transmitting end of the system, so that the effectiveness and reliability of the orbital angular momentum FSO communication system are improved, and the method can be applied to the communication system taking turbulence as a medium.

Provided is a frame used for combining a plurality of motors, comprising a transmission shaft, one or more than one center wheel fixed to the transmission shaft, and a nested body sleeving the transmission shaft. The center line of the center wheel is superposed on the center line of the transmission shaft; the nested body comprises a plurality of fixing slots, and fixing members for connecting the fixing slots, wherein the fixing members are in movable connection with the transmission shaft, and are arranged in the fixing slots; motor power output shafts and the center wheel are in mechanical connection; the nested body integrates the transmission shaft and motors respectively arranged in the fixing slots into a stress whole body with a stable structure. In operation, a plurality of motors provide torque force for the center wheel in a same direction to drive the transmission shaft to rotate. A plurality of motors combined through the frame have the characteristics of high energy efficiency and low heating, are suitable for driving a plurality of kinds of electric appliances, and have a work voltage lower than a safety voltage; compared with a traditional one motor-driven power structure, the plurality of motors combined through the frame are firmer, and the power output shafts of the combined power sources of the plurality of motors combined through the frame are more durable.

The invention discloses an air intake vent temperature correction method based on GPU power consumption and environment temperature. The specific method is as follows: S1, acquiring feedback environment temperature data and power consumption data of a backboard in real time; S2, computationally analyzing the environment temperature to work out a correction coefficient, and computationally analyzing the power consumption data to work out a correction coefficient; S3, adding the two correction coefficients, and then adding a constant value coefficient; S4, outputting real-time and effective Intel sensor feedback value. Compared with the prior art, the feedback value of an Inlet sensor is corrected according to the power consumption and the environment temperature of the backboard by use of the air intake vent temperature correction method based on GPU power consumption and environment temperature, so that the environment temperature can be accurately and really reflected by excluding multiple factors; therefore, not only can the requirement of a customer be satisfied, but also the rotational speed of a fan can be accurately and efficiently controlled in cooperation with a regulating strategy, the power waste caused by excessive rotational speed of the fan is avoided, and the excessive temperature risk caused by too low rotational speed is further avoided.

The invention provides a BWP switching method, a terminal and network side equipment. The BWP switching method comprises the steps that the BWP is switched; a BWP switching command sent by a network side device is received, wherein the BWP switching command is used for indicating the terminal to be switched to a target activation BWP, the BWP switching command carries indication information, and the indication information comprises BWP switching execution information and/or target activation BWP measurement information; and reporting the channel state information (CSI) of the target activatedBWP and/or switching the BWP according to the indication information. Thus, the terminal reports the CSI of the target activated BWP and/or executes the switching of the BWP according to the indication information. Therefore, the network side equipment can schedule the terminal after receiving the CSI report of the target activation BWP according to the indication information, the situation that the network side equipment cannot schedule the terminal due to no measurement result after the terminal is switched to the target activation BWP is avoided, and data interruption and power consumptionwaste can be effectively avoided.

The invention provides a fingerprint identification processing method, a fingerprint identification processing device, fingerprint identification processing equipment and a storage medium. The method comprises the steps of if fingerprint identification fails, acquiring touch information in a specified region of a touch screen, wherein the specified region includes a touch region, and the distance from the touch region to a fingerprint collection region is in a specified range; and if the specified region is determined to satisfy a preset touch condition based on the touch information, prohibiting executing a fingerprint identification failure operation. By applying the scheme, when an error touch operation is determined, the fingerprint identification failure operation is prohibited from executing, thus the problems of power waste, vibration prompts and incapability of normal unlocking due to misidentification times amounts to the setting times brought by execution of fingerprint identification failure operations as a result of error touch are avoided.

The invention discloses an infrared focal plane array readout circuit with a window readout mode and an adaptive power consumption regulation function, and an adaptive power consumption regulation method thereof. According to the invention, the adaptive power consumption regulation of the focal plane array readout circuit with the window function is realized, tail current sources of a line operational amplifier and an output operational amplifier are respectively designed into a current source array composed of k transistors, and a power-consumption control switching tube is additionally arranged on the line operational amplifier. According to the method disclosed by the invention, the operation can be normally carried out at proper power consumption under the condition of meeting of a speed requirement not matter in a large-window low frame frequency working mode or a small-window high frame frequency working mode, and the power consumption wastes generated in different working modesare effectively avoided during single power consumption design. The infrared focal plane array readout circuit and the adaptive power consumption regulation method in the invention can meet the requirements of a high-resolution portable imaging system and can be widely applied.