310results about How to "Solve power consumption" patented technology

The invention provides a locator-based locating method. A locator comprises a central processing unit, a wireless unit, a global positioning system (GPS) locating unit, an inertial navigation unit, a mobile communication unit and a storage unit. The method comprises the following steps that a corresponding external monitoring end is searched based on a wireless detection signal; whether the current distance between the locator and the external monitoring end exceeds a first distance threshold value is determined based on the current wireless signal intensity and a mapping table stored in the storage unit; the inertial navigation unit is started when the current distance exceeds the first distance threshold value; whether the current distance exceeds a second distance threshold value is determined by detecting whether wireless connection can be established between the locator and the external monitoring end; and the mobile communication unit and the GPS locating unit are started when the current distance exceeds the second distance threshold value. By combining low power consumption Bluetooth, wireless fidelity (WIFI), a gyroscope and an accelerometer, the problem of power consumption due to the sustained use of a mobile network and GPS locating is solved.

Disclosed are a method and device for adjusting the frame rate of video recording. The method comprises: acquiring data collected by a sensor of a terminal; determining state information in accordance with the data, wherein the state information is used for adjusting the frame rate of video recording of the terminal; and adjusting the frame rate of video recording of the terminal in accordance with the state information, thereby reducing the power consumption of the terminal. The present invention solves the problem in related art of additional power consumption because the frame rate of video recording is adjusted by means of dynamic adjustment of an image picture, reduces the power consumption of the video function, and improves the endurance capability of the terminal.

The invention provides a vehicle control method and system. The vehicle control method comprises the steps that after a whole vehicle is powered off, a main controller and all auxiliary controllers monitor whether self hard-wire ports meet the dormant condition or not; if the auxiliary controllers meet the dormant condition, a dormant request message is sent to a CAN bus, and the auxiliary controllers enter a dormant state till receiving the dormant request message sent by the main controller; after the main controller receives a dormant request message sent by the auxiliary controllers, whether the auxiliary controllers are allowed to be dormant is judged; if yes, the dormant request message is sent to the auxiliary controllers through the CAN bus; if the main controller meets the dormant condition and all the auxiliary controllers enter the dormant state, the main controller enters the dormant state; and after all the controllers enter the dormant state, the CAN bus enters the dormant state. By means of the vehicle control method and system, the problem that a vehicle storage battery losses electricity due to the fact that a dormancy awakening method requires all controllers to be simultaneously dormant or awakened in the prior art can be solved.

The invention discloses a capacitance turning-on electrical source with the low-power-consumption standby function. The electrical source comprises a commercial power separating electrical source, an electrical source managing circuit and a capacitance voltage-reducing, rectifying and filtering electrical source; wherein, the commercial power separating electrical source is used for providing power needed by the main circuit of a device during working; the electrical source managing circuit is used for receiving a standby / start-up signal so as to control turning on / off of the commercial power separating electrical source; and the capacitance voltage-reducing, rectifying and filtering electrical source is used for providing working current to the electrical source managing circuit. An electronic device provided with the capacitance turning-on electrical source with the low-power-consumption standby function of the invention can accomplish various standby functions. Furthermore, power consumption of the electronic device can be reduced to a microwatt magnitude which is the lowest. The standby energy consumption is greatly lower than the reference standby standard submitted by the International Energy Agency, and the service life of the device is prolonged at the same time.

A system, method and computer readable medium are disclosed for reducing power consumption in clusters, grids, on-demand centers, and so forth The principles disclosed herein can reduce both direct and indirect power consumption while maintaining either full cluster performance or adequate SLA based cluster performance The method includes receiving at least one state data point regarding power consumption or temperature of at least one resource within the compute environment Using intelligent policies to control power consumption, the method implements and interfaces with power managements facilities within the cluster, grid or on-demand center to either implement policies, make dynamic changes, make predictions or actions, and so forth to reduce one or more of the direct or indirect power consumption associated with a compute environment The method can analyze current workload, future workload or both in taking energy saving actions in the environment.

The invention provides a real-time correlator based on an FPGA, GPU and CPU mixed architecture. The real-time correlator comprises a signal sampling module which is provided with N channels used for sampling N channels of signals; an FPGA-based signal preprocessing module which is arranged to carry out frequency mixing, low-pass filtering and packing sequentially on the signals sampled by the channels, a CPU-based unpacking module which is arranged to unpack the signals packed by the signal preprocessing module, a GPU-based signal processing and correlation operation module which is arranged to carry out multi-phase filtering, Fourier transform, correlation operation and integration sequentially on the N channels of unpacked signals, and a CPU-based control module which is arranged to control corresponding processing by the signal preprocessing module and the signal processing and correlation operation module on one hand and is arranged to store and display the signals after integration on the other hand. The barrier that large-scale capacity expansion cannot be carried out due to limited FPGA logic resources is overcome, and the problem that the computing ability of a CPU is limited is solved.

The invention discloses a communication method of an ETC system vehicle unit based on WLAN and a roadside unit. The prior communication linkage between the ETC system based vehicle unit and the roadside unit is short in distance, and needs long time to be established, and is instable, and is not applicable for the linkage between a vehicle moving at high speed and a fixed toll collection system. In order to solve the above problems, the communication linkage between the vehicle unit and the roadside unit is established in the following steps. Firstly, the vehicle unit sends a probe request frame to the roadside unit to monitor an information frame. Secondly, the vehicle unit gets the information fame, and sends an authentication request frame to the roadside unit to monitor the authentication response frame returned from the roadside unit. Thirdly, the vehicle unit gets the authentication response frame, and sends financial transaction information to the roadside unit. By adopting the invention, more stable communications linkage can be established between the vehicle unit and the roadside unit more quickly.

Provided is an active equalization system of a battery pack. The active equalization system of the battery pack comprises a battery state monitoring unit (07), a channel switching unit (06), a DC / DC direct voltage conversion unit (02) and an equalization control unit (05), wherein the battery state monitoring unit (07) is used for measuring voltage of batteries (b1,b2......bn) of the battery pack in a real-time mode, the equalization control unit (05) is used for receiving battery monitoring data in a real-time mode, and sending logic gating signals and equalization control signals to the channel switching unit (06) and the DC / DC direct voltage conversion unit (02) respectively, the channel switching unit (06) is used for receiving the output logic gating signals of the equalization control unit (05), and controlling equalization loops of the batteries to be connected and be disconnected, and the DC / DC direct voltage conversion unit (02) is used for carrying out equalization on the batteries (b1,b2......bn) by receiving the equalization control signals of the equalization control unit (05). The active equalization system of the battery pack can carry out equalization on any single battery of the battery pack, and is high in equalization efficiency.

The invention provides a voltage equilibrium circuit which used for connecting a super capacitor group in series, consisting of an operational amplifier, a switch pipe and resistances. Two resistances with the same resistance values form a bleeder circuit being in jumper connection with two adjacent super capacitors; the midpoint output of the bleeder circuit is taken as a reference voltage to the operational amplifier; the midpoint voltage of the two adjacent super capacitors is taken as the input voltage of the operational amplifier. When the different voltage value of the two adjacent super capacitors exceeds the arranged range, the voltage equilibrium circuit works and discharges by connecting the one with higher voltage out of the two adjacent super capacitors with a power resistance, till the different voltage value of the two adjacent super capacitors is in the arranged range, at this moment, the voltage equilibrium circuit stops working under the control of an internal enabling circuit and enters a standby mode. The voltage equilibrium circuit has the advantages of simple structure, easy installation, low energy consumption, low cost and effectively solving the imbalance voltage problem when a plurality of super capacitors are connected in series.

The power management module distributes in top level system control module and each sub-system module. The power management of each system is decided and controlled by state machine. The state machine has three states: sleep, idle and working. The top level power management module is controlled by a low frequency clock that is valid when the top level system is under sleep state. At that time all sub-system are under sleep state. The low frequency clock uses a 32k crystal oscillator. When the system is under sleep state, the system high frequency clock is closed, so that base band controller, base band processor and all peripherals are closed.

An embodiment of the invention discloses a touch unlocking method for an electronic terminal, which includes: acquiring a trigger event for activate a screen when the electronic terminal is locked; activating the touch screen and displaying at least two unlocking touch points designed and arranged in advance; receiving unlocking touch information inputted according to the unlocking touch points; and controlling the electronic terminal to unlock according to the unlocking touch information. The embodiment of the invention further discloses a touch unlocking setting method for the electronic terminal, user defined locking and unlocking of the electronic terminal are realized, and the problems that an electronic terminal in the prior art requires a great quantity of parameter values to be stored and is power-consuming, and information processing quantity to be identified is complex and numerous. In addition, the electronic terminal can be unlocked highly precisely while unlocking errors are reduced by judging whether the unlocking touch input sequence according to the unlocking touch points is accordant with the preset unlocking control sequence.

The invention provides a traffic information detecting system, wherein a vehicle detector has similar principle with a magnetic resistance vehicle detector and has better performance than the magnetic resistance vehicle detector; by using giant magneto-impedance variation of a magnetic sensitive material-amorphous wire, the variation of a disturbance geomagnetic field during the passing of a vehicle is detected; a single chip 542 program of an intelligent processing interface board 54 (including an A / D (Analog to Digital) converter 541, a single chip 542 and an RFID (Radio Frequency Identification Device) 543) has a dynamic threshold voltage used for filtering adverse effects of the ambient environment of an amorphous wire probe 532 on the amorphous wire probe 532. Through the vehicle detector and a wireless traffic flow dynamic parameter collecting, storage and receiving system, a traffic flow (including availability, speed, traffic flow, road occupancy, model and the like of the vehicle) can be detected in real time under the situation of wireless communication and can store data in an embedded memory and output the data to external equipment, so that a purpose of directing or improving the traffic is achieved by using a network. According to the invention, the amorphous wire probe 532 manufactured from the magnetic sensitive material has the advantages of low cost, small volume, high response speed, low power consumption and high sensitivity. By using a solar cell 3 to supply power, the usual problem of power consumption is solved; by using a super capacitor and a rechargeable battery 52, the problem of severe environments of rainy weathers as well as sandy and windy weathers is solved; by using a thumbtack structure, the contradict between the burying of the vehicle detector and the pavement protection is solved; and with no fear of rolling of the vehicle, the traffic information detecting system provided by the invention can be used for remote monitoring of traffic conditions, traffic management and traffic statistics and comprises road flow monitoring, vehicle speed monitoring, crossing traffic guidance and vehicle parking management.

The invention relates to an electronic device and discloses an electronic wrist watch with double display screens. In the invention, a display device of the electronic wrist watch is formed by a first display screen and a second display screen; when the electronic wrist watch is in a standby state, the second display screen is controlled to display basic information, and the first display screen is controlled to enter a sleep mode; and when the electronic wrist watch is in a working state, the first display screen is controlled to display information, and the second display screen is controlled to enter the sleep mode, wherein the first display screen is a high-definition display screen, and the second display screen is an OLED (Organic Light Emitting Diode) display screen of which transparency is greater than a preset threshold. Not only is the requirement of a user on a display effect met, but also the problem of power consumption of the electronic wrist watch is solved; standby time of the electronic wrist watch is prolonged; the high-definition display requirement and the low power consumption standby requirement are balanced; and user experience is improved.

The invention proposes a method and an apparatus for clearing background applications. The method comprises the steps of step S001, putting a background application always running in a background within a preset time period into a new clear list; step S002, judging whether the background application in the clear list meets a clear condition or not, and if the background application does not meet the clear condition, removing the background application from the clear list, wherein the clear condition comprises power consumption capacity and power consumption speed; and step S003, closing all background applications in the clear list. According to the method and apparatus, the background application is cleared by judging whether the background application meets the clear condition or not within the preset time period, so that the problems that the background application required to be used by a user is cleared away during background application clearing and the background application consumes power are solved.

Embodiments of the invention disclose a positioning method, an apparatus, equipment and a storage medium. The method comprises the following steps of monitoring a positioning request triggered by a user, and if the positioning request is monitored, acquiring weather information of an area where a mobile terminal is located currently; through a temperature sensor, detecting a current actual temperature value of an environment where the mobile terminal is located; according to the weather information and the current actual temperature value, acquiring current environment information of the mobile terminal and determining a positioning mode matching with the current environment information; and using the positioning mode to position the mobile terminal. In the embodiments of the invention, a condition that GPS signals are continuously searched in an indoor environment so as to achieve continuous positioning so that an electricity consumption problem is generated can be avoided; an electric quantity of the mobile terminal is saved; when the matched positioning mode is not used, time wastes are reduced; and a positioning speed is accelerated.

The invention provides a proxy device Internet of Things (IoT) configuration method with high safety and low power consumption, and a system implementing the method. The method comprises the following steps: a smart terminal is registered, and safety binding between the smart terminal and Wi-Fi IoT devices is carried out; a master device of one proxy device in the Wi-Fi IoT is configured in a safe mode, and then the master device authenticate and configure other proxy devices in the Wi-Fi IoT in a point-to-multipoint manner; a safety data path is established between the proxy devices and Wi-Fi devices with low power consumption; the proxy devices are paired with the Wi-Fi devices with low power consumption in a Wi-Fi MAC layer non-connection manner; the Wi-Fi devices with low power consumption can work and send specific information to the proxy devices when triggering conditions are met, and the proxy devices can forward the information or adjust the statuses of the other devices in the network according to the received specific information. The invention provides an IoT system which is extensible, easy to configure, and safe.

The invention discloses a method that mobile terminal obtains ESG updating, and its kernel idea is that: when determining it is necessary, an ESG-providing server end actively informs the mobile terminal to make ESG updating. And the invention provides a server and a mobile terminal. And the invention avoids the mobile terminal from aimlessly and frequently making ESG updating check, so as to radically solve the problems of consuming terminal's processing ability and power caused by the ESG updating check.

The invention relates to a system for realizing SM4 algorithm at a super-speed. The system comprises a control module, a cipher-expanding / ciphering / deciphering module, a ciphering / deciphering module, a ciphering / deciphering module, a data channel subdivider, a cipher-expanding / ciphering and deciphering selector, a round cipher / result channel subdivider and a result selector. The system provided by the invention solves the problem that the speed is low in the existing hardware system as 32 round keys are computed to cipher, and during single task operation, the treatment speed can reach nearly two folds of the existing hardware system. Based on the thought of module reusability, three tasks are synchronously ciphered and deciphered, and the problem that a deciphering module is idle during frequent ciphering tasks in conventional design is solved, so that the utilization ratio and operating speed of the system are effectively improved; during multi-task operation without changing the keys, the processing speed reaches three times that of the single-task operation, the fastest six times that of the existing hardware system.

The invention provides a chip for realizing a binary neural network based on nonvolatile in-memory calculation and a method, and the chip comprises a nonvolatile operation module which is used for carrying out the matrix multiply-add operation on a first binary data packet received by the nonvolatile operation module and a second binary data packet pre-stored in the nonvolatile operation module, wherein the weight of the binary neural network is generally fixed during the reasoning process, and the input characteristics corresponding to each layer of neural network are generally changed alongwith the application. The weight of the binary neural network is used as the second binary data packet to be pre-stored in the nonvolatile operation module, and the input characteristics of the binaryneural network are loaded to the nonvolatile operation module, so that the matrix multiplication and addition operation can be realized in the nonvolatile operation module, and the problems of powerconsumption and time delay caused by data migration can be solved.

An apparatus comprises a supply voltage divider, a state machine, two comparators and a threshold selector. The supply voltage divider divides a VCC into N states SK, and acquires the border voltages VK and VK+1 corresponding to the SK through a resistor divider. The threshold selector acquires a corresponding voltage VK from the supply voltage divider according to the current state SK outputted by the state machine and then sends the acquired VK as VH to a first comparator, and acquires a corresponding voltage VK+1 and sends the acquired VK+1 as VL to a second comparator. The state machine determines whether or not the VH and the VL are matched with the current state SK. If matched, the OSC of the state machine will be turned off, otherwise, the next state Sk+1 or Sk−1 of the SK will be outputted.

The invention provides map information updating device and method. The map information updating device is mainly used for simultaneously receiving signals, such as positioning signals and global position system (GPS) signals of mobile communication system signals or wireless network system signals, and then judging whether the GPS signals are converted to coordinate information, if the GPS signals are not converted to the coordinate information, the positioning signals are converted to the coordinate information and are updated to map data, and if the GPS signals are converted to the coordinate information, the coordinate information of the GPS signals is updated to the map data. The map information updating device and method can solve the problem that the general GPS positioning device is inconvenient for users to use due to low positioning and calculating speed and unstable signal reception.

The invention provides a method for displaying the connection state of a communication component in electric equipment and electric equipment. The electric equipment comprises the communication component and a display component and is connected with external equipment by the communication component; the communication component is provided with a first connection state, a second connection state and a middle connection state; and the middle connection state is a process of switching from the first connection state to the second connection state. The method comprises the following steps of: judging the connection state of the communication component and generating a judgment result; controlling the display of a state icon on the display component according to the judgment result; controlling the state icon to be displayed on the display component in a second display result when the judgment result shows that the communication component is in the second connection state; and controlling the state icon to be sequentially or alternately displayed on the display component in at least two middle display results when the judgment result shows that the communication component is in the middle connection state, wherein all middle display effects of the at least two middle display results are different.

The invention relates to the technical field of liquefied natural gas, in particular to a compression recycling method for evaporation gas of liquefied natural gas. The method comprises the following steps that S1, after heat is absorbed by a liquefied natural gas storage tank, the liquefied natural gas in the liquefied natural gas storage tank partially evaporates into the evaporation gas; S2, after pressure in the liquefied natural gas storage tank rises, the evaporation gas flows out of a gas phase outlet of the liquefied natural gas storage tank; S3, after the evaporation gas flowing out in S2 is heated and pressurized, the evaporation gas is stored in an evaporation gas recycling tank; S4, after pressure of the evaporation gas in the evaporation gas recycling tank is lowered, the evaporation gas is fed into a liquefied natural gas tank car, and pressure in the liquefied natural gas tank car is increased; and S5, liquefied natural gas in the liquefied natural gas tank car is pressed out by high pressure to enter the liquefied natural gas storage tank. According to the compression recycling method for the evaporation gas of the liquefied natural gas, the problem of release of the evaporation gas in the liquefied natural gas storage tank is solved, and the amount of the evaporation gas generated by unloading and pressurization is lowered through evaporation gas unloading.

The invention provides a parking monitoring method based on gravity sensor and a GPS (Global Positioning System). The vehicle state can be automatically identified without external connection of a detection line. When a vehicle encounters the dangerous situations of vibration, collision and the like, picture-taking and video-recording functions can be woken up automatically, and photos and videos are transmitted to a client, so that a user can comprehend the vehicle state in the first time. After the vehicle becomes safe, a guard monitoring state is entered automatically, and functional modules such as a camera module are shut down till an automobile data recorder is woken up, so that sufficient storage for saving photo and video files is ensured when the vehicle is in danger; coverage of valid files is avoided; the power consumption is lowered to the maximum extent; the problem of electricity consumption caused by long parking monitoring time is solved; and the parking monitoring time is prolonged greatly.

The invention provides a computer built-in with a wireless module and a standby method and an activation method thereof. The activation method comprises: computer activation is started; the wireless module sends a signal which requests to activate the computer; a control circuit detects, analyses and determines the signal which requests to activate the computer and sends the control signal which activates the computer to the computer; and the computer responses the control signal and is activated. The invention can realize that the computer can continuously provide the power supply for the wireless module under the condition of standby; when voice or data is called in, the computer can detect a voice or data signal, analyzes the signal, judges the signal, automatically awakens a computer system in extremely short time after finding a correct signal, restores normal hardware and software work environment and makes corresponding ringing hint, and thus the computer can quickly answer the phone or receive and send short messages; the problem of computer power consumption can be solved, and standby time is improved to 5 days or even longer from 2-8 hours of the original battery power supply time.

The embodiment of the present application discloses a backlight brightness adjustment method and a related product. The method comprises the following steps: detecting whether a user is staring at a display screen when the display screen of a mobile terminal is in a bright screen state; if no user is staring at the display screen, lowering the backlight brightness of the mobile terminal; if the user is staring at the display screen, adjusting the backlight of the mobile terminal to the brightness matching the current ambient brightness. The backlight brightness adjustment method and the related product in the embodiment of the present application can adjust the backlight brightness of the mobile terminal, and save the power of the mobile terminal.

The invention discloses a power control system for a wireless communication device of a measuring instrument, which comprises a single-chip microcomputer, a wireless communication device, a voltage detection circuit, a power direct supply circuit and a boost circuit, and is characterized in that a power supply is simultaneously connected with the voltage detection circuit, the power direct supply circuit and the boost circuit, the single-chip microcomputer is simultaneously connected with the voltage detection circuit, the power direct supply circuit and the boost circuit, single-chip microcomputer is used for performing power supply control on the voltage detection circuit, the power direct supply circuit and the boost circuit, a communication interface of the single-chip microcomputer is connected with the wireless communication device, the single-chip microcomputer further performs voltage sampling on output voltage of the voltage detection circuit, and the power direct supply circuit and the boost circuit are simultaneously connected with the wireless communication device. The whole power control system is simple in circuit design, high in reliability, low in cost, low in power consumption, long in service life, safe, environment-friendly and capable of operating in a wide temperature range environment.

The invention provides a farmland wireless sensor network based on ZigBee. The network comprises a ZigBee coordinator, a wireless sensor node and a sensor, wherein the coordinator is connected with the sensor node in a wireless manner; the sensor node has a fixed node address; and the coordinator controls the on and off of a sensor power supply through the sensor node. The farmland wireless sensor network provided by the invention is characterized in that the network has a large quantity of data and is simple, flexible, stable and reliable; and the normal operation of the network can be maintained for longer time under a certain sensor power supply.