833 results about "Power mode" patented technology

The invention discloses a low-power-consumption vehicle-mounted intelligent Internet of Things terminal device and a control method thereof. The terminal device comprises a voltage monitoring module and a mode control module. The voltage monitoring module periodically samples the input voltage of the terminal device at a preset sampling frequency to obtain a plurality of voltage sampling values; the mode control module judges the continuous state of the input voltage based on the plurality of voltage sampling values, controls the terminal device to enter a normal mode of full-power operation of all functional modules when the input voltage is continuously in a state greater than or equal to a first voltage threshold value, and controls the terminal device to enter a normal mode of full-power operation of all functional modules when the input voltage is continuously in a state less than the first voltage threshold value. Controlling the terminal device to be switched to a low-power-consumption mode in which part of functional modules are closed, and controlling the terminal device to enter a sleep mode when the input voltage is continuously in a state smaller than a second voltage threshold value; wherein the second voltage threshold value is lower than the first voltage threshold value.

The invention discloses a graph contrast learning identification method for the low-voltage transformer area topology of a power distribution network. The method comprises the following steps: data acquisition and standardization; constructing a feature extraction module; constructing a time sequence encoder, a voltage correlation module, a time alignment module and a power mode module; semi-supervision and measurement combined training: carrying out graph contrast learning based on attributes, and carrying out supervision training on transformer attribution and meter box attribution by adopting cross entropy loss; and topology identification and reasoning output: inputting time sequence data of a user and a transformer under the condition of zero sample of a new transformer area, and outputting a user-transformer attribution probability and a meter box attribution probability through a feature extraction and classifier. According to the method, physical interpretable features such as voltage correlation and time alignment are introduced and are combined with time sequence coding and metric learning, so that the accuracy and stability of topology identification of the low-voltage transformer area are remarkably improved under the condition of small samples.

The invention relates to the technical field of intelligent switching, in particular to a multi-mode dynamic coupling intelligent switching method and system based on road condition recognition and a vehicle. The method comprises the steps that gradient, vehicle speed, accelerator and brake signals are collected in real time, and a multi-dimensional feature vector fusing driving habits is constructed after preprocessing; a real-time road condition label is automatically generated through unsupervised clustering, and the clustering effectiveness is verified online by using a contour coefficient. Enabling the road condition label and the current power mode to form a system state, and inputting the system state into a self-learning decision network based on reinforcement learning; and the network updates the state-action value matrix through a reward function in a time sequence difference mode, and outputs a target power mode with the highest accumulated reward. And calculating the motion confidence coefficient of the target mode based on the value matrix, if the motion confidence coefficient exceeds a threshold value, generating a switching instruction, and smoothly adjusting the torque by an execution mechanism through a torque transition algorithm to realize impact-free switching. Automatic road condition recognition, self-adaptive decision making and non-inductive execution are achieved, and smoothness and adaptability are improved.

The invention relates to the technical field of electric vehicle battery thermal management, in particular to an intelligent battery thermal management method and system based on environment temperature self-adaptive adjustment. A real-time response mechanism based on the dynamic temperature difference between the environment temperature and the battery temperature is provided, and through the four steps of temperature index data collection, thermal management battery protection, thermal management adaptive control and thermal management dynamic adjustment, when the environment battery temperature difference is larger than a threshold value, a continuous high-power mode is started, a temperature region can be rapidly converged, and the power consumption is reduced. The target temperature zone arrival time is effectively shortened; when the environment battery temperature difference is smaller than the threshold value, the intermittent low-power mode is switched, and energy consumption minimization can be achieved; the working temperature of the power battery can be quickly controlled near or within the most suitable working temperature, and the probability that the battery is reduced or even does not generate related side reactions is ensured, so that the cycle life of the battery is prolonged.

The invention discloses a dormancy awakening method of a vehicle-mounted host system, the vehicle-mounted host system and a vehicle. The method is applied to a vehicle-mounted host system comprising a host and a power management unit, and comprises the following steps: the host sends a first control instruction to the power management unit in response to a sleep request, and controls the host to enter a first low-power-consumption mode so as to maintain an output state of at least one control port in the first low-power-consumption mode; the power management unit responds to the first control instruction, controls the power management unit to enter a second low-power-consumption mode, and maintains power supply to the host in the second low-power-consumption mode; the host responds to the wake-up event, quits the first low-power-consumption mode and sends a second control instruction to the power management unit; and the power management unit responds to the second control instruction, quits the second low-power-consumption mode and recovers to the normal working state. Through cooperative control of the host and the power management unit, the vehicle-mounted host system achieves optimal balance among power consumption, function keeping and awakening speed.

The embodiment of the invention provides a near field communication method, a module, a device, equipment, a medium and a product. The scheme comprises the following steps: a slave device obtains a first radio frequency signal sent by a master device of near field communication, can extract signal characteristics of the first radio frequency signal, and generates a first modulated radio frequency signal; the phase and / or amplitude of the first modulation radio frequency signal is different from that of the first radio frequency signal; then the first modulation radio frequency signal of a first duration is sent; after the first duration, switching the slave device from the first impedance state to a second impedance state and keeping the state for a second duration; the sum of the first duration and the second duration is smaller than the period duration of the low-power-consumption signal sent by the master device. Therefore, the master device is promoted to exit from the low-power-consumption mode in an active and passive modulation mode, and the stability of near field communication is improved.

Systems and methods for providing dynamic network slicing resource reselection for wireless communication are described. User equipments (UEs) may determine that network slicing resources utilized with respect to one or more applications are to be changed in run time, such as for more efficient operation in light of a change in power mode, throughput mode, latency mode, etc. A message indicating a cause for reselection of a current packet data unit (PDU) session association with an application may be provided to a UE route selection policy (URSP) manager. The URSP manager may reevaluate a current PDU session association with the application to determine if it is a best match with the cause. If no, a switch to a new PDU session association with the application may be made. If yes, the current PDU session association with the application may be maintained. Other aspects and features are also claimed and described.

A system for managing emissions of a vehicle includes a controller to perform: activating a heater responsive to a battery state of charge being at or above a predefined threshold, activating an air mover, causing the moving air to be heated to heat an aftertreatment system, receiving an aftertreatment system temperature responsive to activating the air mover, causing the engine to operate in a modified power mode where a power output of the engine is below a power output threshold, responsive to the temperature being at or above a first threshold and below a second threshold, causing the engine to operate the engine in a normal operating mode where the power output of the engine is at or above the power output threshold, responsive to the temperature being at or above the second threshold, and deactivating the heater when the temperature is at or above the second threshold.

The present disclosure generally relates to user interfaces for facilitating operations. In some examples, computer systems provide indications that educate and / or guide users for performing an operation. In some examples, computer systems perform a first operation based on a first type of user input corresponding to a first hardware input device and perform a second operation based on a second type of user input corresponding to the first hardware input devices. In some examples, computer systems adjust audio output of an emergency siren based on detecting a particular type of event. In some examples, computer systems display different types and / or sizes of notifications based on an operating mode of a respective computer system. In some examples, computer systems forgo performing one or more operations when a respective computer system operates in a low power mode.

The invention relates to the technical field of RTC awakening, in particular to a low-power-consumption RTC awakening system and a vehicle with the low-power-consumption RTC awakening system, and the system comprises a state data fusion module, a use condition judgment module, an awakening strategy configuration module, an RTC awakening setting module and a master control sleep control module. According to the invention, by combining the multi-dimensional static judgment standard of the vehicle-mounted state data and counting the number of the state items meeting the static condition, the identification mark is generated, and the judgment basis of the long-term parking use condition is constructed, so that the false triggering of the wake-up strategy setting in the short-time parking scene is avoided; the priority linkage optimization strategy matching result of the wake-up interval and the battery health index ensures that the wake-up period is prolonged, the unnecessary system wake-up times are reduced, the energy consumption in the standby period is reduced, the wake-up configuration efficiency is improved under the condition that the battery state is proper, and whether the low-power-consumption mode can be achieved or not is jointly judged by means of three state conditions. And the stability of the master control in the dormant state and the sustainable consistency of the state after awakening are ensured.

The invention discloses an interphone power saving method and device for dynamically adjusting a low noise amplifier working point, and the method comprises the following steps: S1, periodically collecting a digital intermediate frequency signal in a receiving stage, and calculating a first parameter and a second parameter, the first parameter being a current received signal strength indication value, and the second parameter being a current signal-to-noise ratio estimation value; s2, when the first parameter is higher than a first threshold value and the second parameter is higher than a second threshold value, it is judged that a low-power-consumption access condition is met; s3, when N continuous cycles all meet the low-power-consumption access condition, the baseband processor outputs a first control signal, and the bias working point of the low-noise amplifier is switched to a low-power-consumption mode; and S4, in a low-power-consumption mode, if the first parameter is lower than a third threshold value or the second parameter is lower than a fourth threshold value, outputting a second control signal, and switching the bias working point of the low-noise amplifier to a high-performance mode, thereby solving the problem of high static power consumption of the interphone receiving link on the premise of ensuring the communication reliability.

A radio frequency (RF) power amplifier based on transformer matching is provided. The RF power amplifier includes: a first-stage amplification circuit configured with an input terminal and an output terminal, wherein the output terminal of the first-stage amplification circuit is configured to be connected to one terminal of a main coil of a first transformer; the first transformer configured to include the main coil and a secondary coil, wherein one terminal of the secondary coil is grounded and the other terminal of the secondary coil is connected to a medium-low power mode input terminal of a power switch; the second-stage amplification circuit configured with an input terminal for receiving the amplified RF signal from the first-stage amplification circuit, wherein an output terminal of the second-stage amplification circuit is configured to be connected to a high power mode input terminal of the power switch.

The invention discloses a chip internal reference clock frequency adjusting device and a chip. The chip internal reference clock frequency adjusting device comprises a system clock generating circuit; a system non-volatile memory circuit; the enable register is used for enabling the backup function of the backup register; the backup register is used for backing up an IRC frequency modulation control word currently used by an internal IRC clock source of the system clock generation circuit when the backup function of the backup register is enabled and a deep low power consumption mode request instruction is received; the alignment module is connected with the enable register, the backup register, the system non-volatile storage circuit and the system clock generation circuit and is used for aligning the system non-volatile storage circuit before the backup function of the backup register is enabled, the system receives a deep low-power-consumption wake-up request and the initialization of the system non-volatile storage circuit is finished; and IRC frequency modulation control words backed up by the backup register are selected to control the starting frequency of an internal IRC clock source of the system clock generation circuit. According to the device, the on-chip internal reference clock source is quickly adjusted, and the system wake-up time is shortened.

The invention provides a base station OTA intermodulation test method based on a reverberation chamber. The reverberation chamber comprises a shielding shell which encloses a closed cavity, and a stirrer which is arranged in the closed cavity and is used for stirring electromagnetic waves transmitted in the closed cavity; and the tested base station and the interference signal antenna are arranged in the working area of the closed cavity in parallel at a preset interval. The method comprises the following steps: starting a tested base station, and enabling the tested base station to transmit a main signal of a first frequency and bandwidth in a preset transmitting power mode; providing an interference signal of a second frequency and bandwidth with a predetermined power level to an interference signal antenna to generate intermodulation interference on the tested base station so as to perform an intermodulation interference test; under the condition that the stirrer is started for electromagnetic wave stirring, electromagnetic wave signals in the closed cavity are collected; and analyzing and processing the acquired electromagnetic wave signal to obtain a measurement result of the intermodulation interference test index based on the total radiation power. The universality of the emission intermodulation test is realized, and the test cost and time are reduced.

Touch-based protective lighting system and methods may be used. Portable lighting devices and / or modes of operation may pose safety risks. High-lumen output, focused light output, and / or overheating components may damage, burn, or ignite surrounding materials or the user. Various modes of operation of the portable lighting device may include modes designed to increase the safety of the portable lighting device. In certain operating modes or configurations, user touch / presence / control, distance to an illumination target, temperature of an illumination target, and / or device temperature may be used to determine whether to use the operating mode or instead to enter a protective / safe mode. Safe mode may be characterized by a lower light output / power mode or may power off the portable lighting device.

The invention discloses a 2.4 G-based RSSI (Received Signal Strength Indicator) positioning data relay transmission device and method, and belongs to the technical field of wireless communication. The device comprises a positioning label, a positioning gateway, a relay gateway and a public network gateway. The positioning tag broadcasts a 2.4 G signal containing the ID of the positioning tag; the positioning gateway scans the 2.4 G signal, and generates and broadcasts a data packet in which a positioning gateway address, a data packet number, a relay level and aggregated data are packaged; a relay gateway is switched to a low-power-consumption mode after initialization through a monitoring-learning-synchronization mechanism, wakes up and receives data in a broadcast time window of an upstream gateway of the relay gateway, updates a relay level and forwards the data to a downstream gateway, and therefore multi-hop relay transmission of the data is achieved. And the public network gateway finally uploads the data to a cloud platform or an upper computer. According to the invention, through data aggregation and time synchronization dormancy, the system power consumption is greatly reduced, and long-distance and long-endurance positioning data transmission of battery power supply in a complex environment is realized.

The invention discloses a liquid hydrogen high-temperature superconducting motor and magnetofluid dual-power propulsion system, and aims to solve the problems that an existing ship propulsion system is single in power mode and insufficient in power density. The system comprises a liquid hydrogen storage and supply unit, a cooling unit, an energy conversion unit, a superconducting motor propulsion unit and a magnetofluid propulsion unit, the liquid hydrogen storage and supply unit conveys liquid hydrogen to the superconducting part through the cooling loop, the liquid hydrogen is converted into hydrogen through the heat exchanger after being cooled, the energy conversion unit converts the hydrogen into electric energy and outputs the electric energy in a matched mode, and the superconducting motor propulsion unit and the magnetic fluid propulsion unit generate mechanical energy or electromagnetic force through the electric energy to drive a ship. And the superconducting component is cooled by the cooling loop. The liquid hydrogen in the system has the dual functions of a cooling medium and fuel, a coolant and fuel do not need to be additionally configured, the requirements for silence, high thrust and rapid maneuvering are met, the power density is high, the environmental protection property is good, and the system is suitable for high-performance propelling scenes such as ships, especially submarines.

The embodiment of the invention provides a near field communication method, a module, equipment, a medium and a product. The method comprises the following steps: acquiring a first radio frequency signal sent by a main device of near field communication; judging whether the first radio frequency signal is a low-power-consumption signal or not; if the first radio-frequency signal is a low-power-consumption signal, selecting a first target modulated radio-frequency signal matched with the first radio-frequency signal from a plurality of modulated radio-frequency signals; and transmitting the first target modulation radio frequency signal of a first preset duration so as to promote the master device to exit a low-power-consumption mode.

A processing system includes a client network circuit over which a processing circuit communicates with one or more client circuits to carry out tasks of a software application executing in the processing circuit. During a period of inactivity in the client circuit(s), the client network circuit may enter a low-power mode by initiating a power-down sequence. The exemplary client network circuit includes a monitor circuit to receive client requests from the client circuit(s) in case the client circuit becomes active during the power-down sequence. The monitor circuit provides an interrupt signal to the processing circuit, which responds by causing the client network circuit to reverse the power-down sequence and return to the active mode to service the client request. In this manner, errors can be prevented because the client requests received during a power-down sequence of the client network circuit are not lost.

A surgical system is herein disclosed that includes a surgical instrument and a generator. The surgical instrument includes a handle assembly that is grasped by one or more hands of an operator, a shaft assembly connected to the handle assembly, an arm, an end effector connected to the shaft assembly that interacts with tissue, and a sensor that senses a characteristic of the arm, from which an amount of pressure experienced by the arm while the end effector interacts with the tissue is determined. The generator is connected to the surgical instrument and delivers, to the end effector, a power profile dynamically selected from a plurality of power profiles based on the determined amount of pressure experienced by the arm.

A heterogeneous processor includes a first processor and a second processor of a different type. The heterogeneous processor operates in either a low-power mode or a full-power mode. The first processor is configured to operate in the low-power mode, process sensing data from a sensor using a trained neural network model, and generate a wake-up signal when an output of the trained neural network model satisfies a predefined criterion. The wake-up signal is provided to the second processor during the low-power mode. The second processor remains in a powered-down state during the low-power mode and transitions to the full-power mode in response to the wake-up signal.

The present disclosure provides an automatic driving controller data idle uploading method, system, medium and equipment, relates to the technical field of intelligent network connected vehicles, and comprises an automatic driving domain controller, a double rate synchronous random access memory, an embedded memory, a regional network management controller, a vehicle-mounted communication terminal and a vehicle domain controller. When the vehicle power supply mode is in an ON mode, the automatic driving domain controller writes and stores the backhaul data generated during the automatic driving function operation in the embedded memory through the double rate synchronous random access memory. When the vehicle is powered off, the regional network management controller sends a CAN message maintenance request, wakes up the vehicle-mounted communication terminal and the vehicle domain controller which need data uploading, and then uploads the temporarily stored data in the embedded memory.

A detection activity of a card may be sensitive to capacitance changes in adjacent and non-adjacent pads on the card. Accordingly, the detection activity may remain sensitive to faster-moving devices and / or reduced detection sampling rates. A second detection activity may follow a first detection activity, which may increase a probability of a successful communication sequence subsequent to the first detection activity. A card may, therefore, immediately transition to a low-power mode of operation after verification to reduce power consumption.

Various aspects of the present disclosure generally relate to memory devices. In some aspects, a host device may detect a background operation status associated with a memory device. The host device may transmit, to the memory device and based at least in part on the background operation status, a command to disable a background operation associated with the memory device. The host device may transmit, to the memory device, a power down command in accordance with a timeout associated with the background operation. The host device may receive, from the memory device, a response. The host device may instruct, based at least in part on the response, one or more resources associated with the memory device to enter into a low power mode state or an off state. Numerous other aspects are described.

The present application relates to the technical field of wind farm active wake control, and discloses an active wake control method and device suitable for wind farm limited power operation, wherein the present application combines the active scheduling suggestion of the unit affected by the wake influence level, matches the actual information of limited power and shutdown, customizes the wake optimization control strategy in the limited power mode and the non-limited power mode, accurately adapts to the real-time operation working condition of the station, can fully consider the actual wake effect loss and the unit fatigue damage, avoids the wake redirection misalignment problem caused by the mismatch between the strategy and the field working condition, effectively improves the adaptability and reliability of the wake control strategy, guarantees that the wake redirection always plays a positive benefit effect, and greatly reduces the benefit loss caused by the strategy failure.

The invention belongs to the technical field of energy, and discloses a quick charging system, which comprises a lithium ion power battery system, which is equipped with a lithium battery management system BMS, has an automatic equalization function, can monitor the voltage, temperature and the like of a single battery, and has over-discharge, over-voltage, low-voltage, over-current, overload, short-circuit and other alarm protection functions; the DCDC cabinet is used for controlling charging and discharging of each cluster of battery pack; the rectifier cabinet and the shore power rectifier rectify shore power into DC 1000V and then access the DC bus, and charge the lithium battery system through the DC / DC module; the charging rectifier transformer is used for transforming 3AC10kV or 6kV shore power to 690V and then respectively connecting the 3AC10kV or 6kV shore power to shore power rectifier cabinets on a left board and a right board of the ship; the medium-voltage switch cabinet adopts a standard design, is closed by a steel plate on the back surface, is mounted against a wall and is maintained in front of the plate; and the medium-voltage circuit breaker is arranged in the medium-voltage switch cabinet. According to the invention, the battery is charged through the DCDC. In a conventional low-voltage shore power boarding mode, a large number of shore power cables will be increased under the charging power requirement needed by the invention, and meanwhile, the loss of a shore power line is large.

The application discloses a battery replacing method and a battery replacing system, and relates to the field of battery replacing. The battery replacing method comprises the following steps: moving a battery replacing tool and a full-battery to a target battery replacing position by a battery replacing vehicle; and removing a depleted battery from the target battery replacing equipment located at the target battery replacing position by the battery replacing tool, and installing the full-battery to the target battery replacing equipment. The application can at least solve the problems of sudden power failure in the driving route, inconvenience in movement and the like in the vehicle searching for power mode.

The invention provides a switching system for vehicle power supply modes and a vehicle, the switching system comprises a controller power supply contact, a switching piece and at least two power supply mode contacts, the controller power supply contact is connected to a power supply input end of a vehicle controller through a wire; wherein one power supply mode contact is electrically connected with a constant power line of a vehicle wire harness system, and the other power supply mode contacts are electrically connected with at least one of an ACC-gear power line, an ON-gear power line and an STAR-gear power line of the vehicle wire harness system; and the controller power supply contact is switched to be electrically connected with different power supply mode contacts through the switching piece. Compared with the prior art, the switching system does not depend on a central control screen or a diagnostic instrument on the vehicle, does not depend on programs, does not need complex opening and screen page operation, can achieve switching of the vehicle power supply modes through simple mechanical structural parts, is easy and convenient to operate, and meets switching of the vehicle power supply modes in any scene.

The present invention provides a hydraulic excavator (1) comprising an electric motor (7) and a hydraulic actuator. The electric motor (7) is driven by a commercial power source (5) and a battery (62), and the hydraulic actuator is driven by a hydraulic pump (113) driven by the electric motor (7). The electric hydraulic excavator (1) has a first power mode and a second power mode. In the first power mode, the electric motor (7) is driven while the battery (62) is continuously charged from the commercial power source (5). In the second power mode, the electric motor (7) is driven only by the battery (62). When the power supply cable (51) for power supply from the commercial power source (5) is connected to the power supply port and the rotation of the electric motor (7) stops, the excavator switches from the second power mode to the first power mode.

The invention discloses a mobile robot which comprises a working communication unit, an idle communication unit, a power management unit, a robot control server, a robot controller and a motor assembly. The output end of the idle communication unit and the power input end are connected with the power management unit. The power input end of the working communication unit is connected with the power management unit, and the wired data end is connected with the robot controller. And the power management unit is used for quitting the low-power-consumption mode through the trigger signal of the idle communication unit and enabling the whole robot to enter a normal working mode. And the robot control server is in wireless communication connection with the working communication unit. The robot controller is connected with the wired data end of the working communication unit and the power management unit. The motor assembly is connected with the power management unit and the robot controller. The working communication unit is used for high-speed wireless communication during normal working, the idle communication unit is used for low-speed wireless communication during idle working, and the function of a low-power-consumption wireless switch is achieved.