374 results about "Residual charge" patented technology

The invention provides a robust two-way stacked electrostatic protection circuit, which comprises a two-way stacked electrostatic protection module and a floating charge discharge module, and is characterized in that the two-way stacked electrostatic protection module comprises at least one floating node, and the floating node can accumulate residual charges in the process of normal working of the circuit or electrical characteristic test characterization; the floating charge discharge module is composed of a state control module and a charge discharge module, and the state control module monitors the potential state of a floating node in real time and generates a control signal; the charge discharge module responds to the control signal to conduct and discharge charges accumulated by the floating node, the floating charge discharge module comprises an MOS transistor, the MOS transistor is connected with the first port through the state control module, a source electrode of the MOS transistor is connected with the floating node, and a drain electrode of the MOS transistor is connected with the second port. According to the series high-voltage ESD protection circuit, accumulated charges on the floating node in the series high-voltage ESD protection circuit can be discharged in time.

The invention discloses a power control method and device for a power battery, a medium and a program product, and relates to the technical field of battery management, and the method comprises the steps: determining the reference discharge power of the power battery according to the current residual electric quantity and temperature of the power battery; calculating the real-time discharge power of the power battery according to the total voltage and the total current of the power battery; when the residual electric quantity is smaller than or equal to a preset electric quantity threshold value, monitoring the lowest single voltage of the power battery; and according to the real-time discharge power, the minimum monomer voltage and the reference discharge power, obtaining the actual allowable discharge power of the power battery. The precision of discharge power control and the smoothness of the vehicle are improved.

The invention discloses a new energy vehicle battery health degree calculation method and device, and the method comprises the steps: merging a plurality of charging data segments of a vehicle into one piece of charging data based on a preset merging rule; the charging data comprises residual electric quantity, current and voltage corresponding to each time point; determining the distinguishing attribute of the charging data according to the type of the battery cell of the vehicle battery; the distinguishing attribute comprises voltage or residual electric quantity; determining a plurality of division intervals corresponding to the distinguishing attributes and the reliability weight of each division interval; constructing a sliding window based on the charging data, and obtaining a potential battery health sequence based on the reliability weight of the division interval corresponding to the distinguishing attribute of the charging data in the sliding window; and obtaining the battery health degree based on the potential battery health sequence. According to the method, the anti-interference capability of battery health degree calculation is effectively improved, the dependence on high-precision residual electric quantity data and complete full charge data is remarkably reduced, and finally, high-precision and high-robustness battery health degree evaluation is realized.

The invention relates to the technical field of medical health equipment, in particular to a temperature measurement method and device based on a rechargeable thermometer, a medium and equipment. The method comprises the following steps: determining a body temperature acquisition time interval; according to the acquisition time interval, acquiring body temperature data of the target user at each preset acquisition time point in the target time window to obtain a body temperature sequence of the target user; according to the body temperature sequence of the target user, the residual electric quantity value of the super-capacitor charging thermometer and a power consumption prediction model, obtaining predicted average power consumption corresponding to the key time window and the predicted highest body temperature of the target user; obtaining an updated acquisition time interval according to the predicted average power consumption corresponding to the key time window, the predicted highest body temperature of the target user and a preset dynamic control algorithm; and skipping to the step of collecting the body temperature sequence of the target user. The electric quantity of the super-capacitor charging thermometer is reasonably used, and the problem that power consumption is too fast due to long-time high-frequency measurement is solved.

The invention relates to the technical field of pulse load energy optimization control, in particular to a pulse type ultra-low power consumption energy management system based on a super capacitor, which comprises a pulse spectrum analysis unit, a capacitor bank dynamic tuning unit and a charge state compensation unit, a pulse spectrum analysis unit extracts a load pulse dominant frequency component through a window function weighting algorithm to generate a target frequency value, and a capacitor bank dynamic tuning unit inquires a mapping table according to the target frequency to adjust series-parallel connection combination of the super capacitors and injects a reverse reactance component to offset a resonant impedance difference value. And the charge state compensation unit predicts the residual charge quantity by using a Kalman filter, and triggers a charge redistribution strategy in a non-pulse period, thereby solving the problems of insufficient dynamic impedance matching and low charge balance efficiency in the traditional technology, realizing high-efficiency and low-consumption management of the energy of the super capacitor, improving the energy transmission efficiency, and reducing the energy consumption. And the endurance time of the equipment is prolonged.

The invention discloses a new energy automobile starting sodium ion battery protection system and method, and belongs to the technical field of battery management. Whether a battery is in an extreme starting risk state or not is judged by obtaining a basic response parameter set B under the current temperature and the residual electric quantity; if the risk exists, a voltage recovery curve family M of similar working conditions is extracted from historical data, a voltage prediction model W is constructed, and the lowest voltage point Vmin in the starting process is predicted; determining a safe discharge current limit value Ilimit according to the Vmin, and generating a dynamic current limiting strategy L; executing a current limiting strategy L to control starting current input; when it is detected that the voltage rises and exceeds a set recovery threshold value, the current limiting strategy is quitted, and normal current output is recovered; the method can effectively reduce the starting failure risk of the sodium ion battery under extreme working conditions of low temperature, low electric quantity and the like, and improves the system safety and the starting success rate.

The invention provides a VSG-based energy storage power station adaptive inertial support control method, system and device and a medium, and relates to the technical field of energy storage power station control. The method comprises the steps that power grid operation parameters and energy storage battery pack state parameters are collected, the power grid operation parameters comprise the power grid frequency and the frequency change rate, and the energy storage battery pack state parameters comprise the remaining electric quantity and the battery temperature; calculating frequency deviation according to the power grid frequency and the power grid rated frequency, judging the power grid disturbance level according to the frequency change rate and the frequency deviation, and judging the battery safety state according to the residual electric quantity and the battery temperature; determining a disturbance adaptation coefficient according to the power grid disturbance level, determining a battery state correction coefficient according to the battery safety state, and dynamically optimizing an inertia time constant and a damping coefficient of the VSG based on the disturbance adaptation coefficient and the battery state correction coefficient; based on the inertia time constant and the damping coefficient, basic inertia support power is calculated in combination with a VSG rotor motion equation, and the basic inertia support power and a frequency modulation component of the AGC instruction are subjected to cooperative processing to obtain a final power instruction; and issuing the final power instruction to the energy storage converter for execution.

The invention relates to the technical field of sensors, and discloses a capacitive touch detection circuit and method.The capacitive touch detection circuit comprises a charge compensation module, a voltage and current conversion module, an integrating capacitor, a quantization circuit module and a counter; the charge compensation module is used for performing charge and discharge compensation on the external touch capacitor and adjusting the charge quantity on the touch capacitor to be within a preset charge quantity range corresponding to the reference voltage; the voltage and current conversion module is used for converting residual charges on the touch capacitor compensated by the charge compensation module into current and outputting the current; the integrating capacitor is used for integrating the current to obtain an integrated voltage; the quantization circuit module is used for quantizing the integral voltage and controlling the integral voltage to be stabilized in a preset voltage range of the reference voltage; and the counter is used for counting the output of the quantization circuit module to obtain a digital code representing a touch capacitance value. According to the invention, the touch detection performance with high linearity, low power consumption, small area and high noise resistance can be realized.

The invention provides a parameter adjusting method and device of an energy storage unit, and energy storage control equipment and system, and relates to the technical field of transformer area power supply. The method comprises the following steps: acquiring output power of an energy storage unit at a plurality of moments in a preset time period, an equipment operation state and real-time residual electric quantity of the energy storage unit; according to the output power and the equipment operation state, calculating the net electric quantity exchanged between the energy storage unit and the transformer area distribution transformer in a preset time period; according to the net electric quantity and a preset residual electric quantity reference value of the energy storage unit, calculating a target residual electric quantity reference value of the energy storage unit; calculating a target reference voltage of the energy storage unit according to the target residual electric quantity reference value, the real-time residual electric quantity and the initial reference voltage; and controlling the energy storage unit to charge and discharge according to the real-time operation voltage and the target reference voltage of the energy storage unit so as to regulate and control the phase line voltage. According to the invention, the parameters of the energy storage unit can be automatically adjusted, and the automatic response capability and the scene adaptability are improved.

The invention relates to the field of chip electrostatic protection, in particular to a high-bandwidth flash memory chip ESD protection circuit optimization method and system. The method comprises the following steps: carrying out multi-point synchronous observation through a charge imaging module, and extracting ESD multi-step observation information; identifying a high density charge region based on the ESD multi-step observation information; defining a safe charge threshold value, performing charge safety evaluation on a high-density charge region, and entering a dynamic regulation and control mode; carrying out charge discharge path dynamic planning based on a dynamic regulation and control mode, and calculating real-time residual charge density; and detecting that the real-time residual charge density is lower than a safe charge threshold value, and completing the protection operation of the local bleeder circuit. The electrostatic discharge risk events higher than the safety threshold are quickly responded and efficiently processed, the safety of the chip circuit is improved, and the service life of the chip is prolonged.

The invention relates to the technical field of electronic timers, in particular to an environment self-adaption low-power-consumption management system and method for an electronic timer, and the system comprises an environment sensing array, a physical state evaluator, a dynamic power consumption strategy generator, a closed loop execution and calibration unit and a self-adaption compensator. According to the method, multi-dimensional environment parameters are dynamically collected, a coupling model representing the relation between frequency deviation and compensation power consumption is constructed, combined regulation and control parameters are generated through multi-target optimization by combining the residual electric quantity of equipment and a timing error accumulated value, hardware execution is driven, operation deviation is monitored in real time, and strategy self-adaptive iterative optimization is achieved through a feedback closed loop. According to the invention, the pain point that the precision and the power consumption of a traditional electronic timer are mutually restricted is effectively solved, and the equipment environment adaptive capability, the endurance time and the full life cycle operation stability are greatly improved.

An electric quantity balance control method includes: S1: obtaining remaining electric quantities of a plurality of energy storage devices; S2: calculating an average value of the remaining electric quantities of the plurality of energy storage devices; S3: subtracting the average value calculated in step S2 from the remaining electric quantity of each energy storage device to obtain a corresponding difference, and for each energy storage device, if the corresponding difference is greater than 0, increasing an output voltage of the energy storage device to increase its output power, otherwise if the corresponding difference is less than 0, reducing the output voltage of the energy storage device to decrease its output power. According to the energy storage device alternating current multi-phase system and the electric quantity balance control method therefor provided in the present invention, the problem of the overall endurance of the system being greatly shortened is effectively solved.

The invention provides a signal processing method of an image sensor, which comprises the following steps of: starting a transfer transistor by using a relatively low first starting voltage during LCG to read an image signal of the LCG, and starting the transfer transistor by using a relatively high second starting voltage during HCG to read an image signal of the HCG. Wherein the first turn-on voltage is smaller than the voltage for completely transferring the full well charge of the photodiode to the floating diffusion region under the LCG, so as to ensure that the charge in the photodiode is not completely emptied when the image signal of the LCG is read; the second turn-on voltage is greater than or equal to the voltage for completely transferring the residual charge of the photodiode to the floating diffusion region under the HCG, so that the charge in the photodiode can be completely transferred under low illumination. Compared with the prior art, the method can ensure that charges in the FD cannot exceed a readable range during LCG and HCG, read data distortion cannot be caused, the storage area does not need to be increased, the FD potential change amplitude is not too large during two times of charge transfer, noise can be reduced, the problem of transverse stripes of a lamp tube can be minimized, and the HDR image quality can be improved.

The invention relates to the technical field of electrical equipment insulation tests, and discloses a medium-voltage cable variable-frequency resonance voltage-withstanding test system and a medium-voltage cable variable-frequency resonance voltage-withstanding test method. The method comprises the steps of configuring a test loop and setting related parameters, and presetting a target test voltage, test time, a system quality factor range, a local discharge capacity threshold and a current change rate threshold based on a cable model, a cable length, a laying environment temperature and an equivalent capacitance. And executing frequency scanning in a preset frequency range through an adaptive step length strategy, adjusting the step length according to the current response, identifying the resonant frequency and verifying the quality factor of the system. In the test process, the loop current change rate, the partial discharge capacity and the equipment temperature are monitored in real time, a protection mechanism is triggered according to abnormal characteristics, and insulation state diagnosis is completed. When the test is ended, voltage is reduced at a controllable rate, residual charges are dissipated, and a test report is automatically generated. The method improves the accuracy and safety of the test, and is suitable for various field conditions.

This utility model provides a transformer partial discharge testing device, mainly relating to the field of transformer technology. The device includes a housing and metal electrodes. The metal electrodes are slidably disposed on the top of the housing. A rectangular cylinder is fixedly disposed on the top of the housing. A support frame is slidably disposed inside the rectangular cylinder. A limiting block is hinged to the outside of the rectangular cylinder, and the limiting block abuts against the side of the support frame. An L-shaped fixing plate is fixedly disposed on the outside of the rectangular cylinder, and a DC solenoid valve is fixedly disposed on the L-shaped fixing plate. The end of the DC solenoid valve abuts against the limiting block. The advantages of this utility model are: after the test is completed or the monitoring system detects an abnormality, the metal electrodes can be quickly and safely separated from the transformer, effectively avoiding the risk of electric shock due to residual charge and greatly ensuring the safety of operators.

This suppresses power waste caused by discharging residual charge. [Solution] The emitter 10 of the distance measuring device 1 for measuring the distance to an object comprises a transmitting unit that outputs a transmission wave to irradiate the object, a capacitor 120 that is charged by a power supply and supplies current to the transmitting unit, a switching element 150 that controls the current flowing to the transmitting unit, a drive circuit that controls the switching element, and a control unit 180 that, after irradiating with a transmission wave, sends a control signal to the drive circuit to continuously irradiate with a transmission wave of an irradiable distance according to the residual charge of the capacitor 120.

To deliver a necessary amount of electric power at an appropriate timing to a construction site where an electric construction machine operates.SOLUTION: A power delivery system including a control device that creates a delivery plan for delivering a power storage device in which power is stored from a delivery facility of the power storage device to a construction site where an electric machine including an electric construction machine operates, the control device comprising: Wherein the control device receives a remaining amount of stored power of a battery that stores power for driving the electric machine at the construction site, calculates a predicted transition of the remaining amount of stored power of the battery based on the received remaining amount of stored power, calculates a time when power supply is required based on the predicted transition of the remaining amount of stored power, and calculates a power acceptable amount at the construction site at the time when power supply is required based on a battery capacity of the battery and the predicted transition of the remaining amount of stored power, and create a delivery plan for delivering the power storage device storing the power equal to or more than the acceptable amount to the construction site by the time when the power supply is required.SELECTED DRAWING: Figure 4

This invention provides a method for calculating train emergency waiting load considering dynamic power, belonging to the technical field of emergency power supply load calculation for high-speed trains. For train emergency waiting conditions, this invention establishes a unified calculation framework for coordinated power supply from AC power batteries and DC batteries. Under the premise of prioritizing basic load protection, it comprehensively considers the dynamic power change characteristics of the load, real-time remaining power, equipment fault status, and cumulative operating time, forming a complete calculation process from parameter preset, real-time status acquisition, power demand calculation to iterative output of remaining time. This achieves a relatively accurate assessment of emergency oxygen production, emergency air conditioning, and overall remaining waiting time. This invention enables precise calculation of the remaining available time of the load under emergency waiting conditions, providing reference and suggestions for drivers' emergency response.

To provide a charging method that can more reliably reduce the electricity costs associated with charging batteries. [Solution] The system obtains the usage schedule of the electric vehicle 2, the current remaining charge of the battery 8 for the electric vehicle 2, and predicted values ​​of the electricity rates per unit price for each time period in the future, supplied by a designated power company. Subsequently, based on the obtained usage schedule, the system calculates the required remaining charge, which is the battery charge needed for the next ride of the electric vehicle 2, and calculates the difference (required charge amount) between the calculated required remaining charge and the obtained current battery charge. Subsequently, based on the obtained usage schedule, required charge amount, and predicted electricity rates, a time period is set for charging the battery 8 to the required charge amount. Subsequently, the system charges the battery using electricity supplied by the power company during the set time period so that the battery 8 reaches the required remaining charge.

The present disclosure relates to a backup power management system and a backup power management method. The backup power management system comprises a power supply unit, a backup power unit, a system control unit and a power monitoring unit. The power supply unit supplies power to an electrical device by an external power source. The backup power unit supplies power to the electrical device when the power supply unit fails to supply power to the electrical device. The power monitoring unit monitors the status of the power supply unit and the backup power unit to transmit a supplemental charging information to the system control unit when the power supply unit is able to supply power normally and the remaining power of the backup power unit is lower than a preset supplemental power threshold, for the system control unit to determine a supplemental charging strategy of the power supply unit to the backup power unit. The system control unit determines the supplemental charging strategy based on a comparison of a load rate of the external power source and a preset load rate threshold. The power monitoring unit receives the supplemental charging strategy from the system control unit and controls the power supply unit to perform supplemental charging to the backup power unit according to the supplemental charging strategy.

The invention discloses a multi-lithium-battery management and control method and device for an exoskeleton system. The method comprises the following steps: acquiring a first residual electric quantity of an arm back assembly of the exoskeleton system, and a second residual electric quantity and a third residual electric quantity of left and right hand assemblies connected with the arm back assembly; respectively calculating first residual working time and second and third residual working time of the hand component according to the first, second and third residual electric quantities; detecting whether an external power supply interface of the arm back assembly is connected to external power supply; when the external power supply is accessed, identifying the power supply type of the external power supply; generating a charging control strategy according to the first, second and third remaining working time, the power supply type and whether external power supply is accessed; and based on the charging control strategy, controlling the arm back component to supply power to the hand component or controlling an external power supply to supply power to the hand component. According to the technical scheme, the limitation of a traditional power supply scheme is effectively overcome, and the practicability and reliability of the exoskeleton system are remarkably improved.

To enable a user to easily grasp the amount of electric power that can be used by an entire electronic apparatus to which a cover member is attached.SOLUTION: In the aerosol generation device 1, the cover member 10 that can be attached to and detached from the main body device 20 operated by the built-in first battery 201A includes the second battery 101A, the power supply circuit 102 that supplies power from the second battery to the main body device, the communication unit 104 that performs communication according to a predetermined communication standard, and the notifying unit 103 that notifies the terminals different from the main body device of the total value of the remaining amount of the first battery 201A and the remaining amount of the second battery by using the communication unit.SELECTED DRAWING: Figure 8

The utility model discloses a charging circuit and an electric toothbrush, the charging circuit comprises a power supply input end, the power supply input end is used for accessing a power supply; the switching circuit is connected in series between the power supply input end and the positive electrode of the battery; the detection end of the electric quantity detection circuit is electrically connected with the positive electrode of the battery, and the electric quantity detection circuit is used for detecting the residual electric quantity output to the battery and outputting a corresponding electric quantity detection signal; the main control circuit is electrically connected with the controlled end of the switching circuit and the electric quantity detection circuit, and the main control circuit is used for controlling the switching circuit to be switched off to stop charging the battery when it is detected that the residual electric quantity of the battery reaches a preset electric quantity threshold value according to the electric quantity detection signal; the utility model aims to avoid accelerated aging and shortened service life of the battery in a floating charge state after the battery is fully charged.

To provide a circulation power generator capable of effectively taking out power on the output side of a generator by arranging a reduction gear between a high-speed power motor and the generator to increase the amount of power.SOLUTION: The power generation system includes a high-speed power motor 2 driven by an inverter 1, a generator 4 connected to the high-speed power motor 2 via a reduction gear 3, and a capacitor 8 for storing power obtained by the generator 4 rotating at a speed lower than that of the high-speed power motor 2, and the inverter 1 is operated according to a remaining amount preset by the capacitor 8.SELECTED DRAWING: Figure 1

The invention provides a method and system for preventing abnormity caused by battery aging and a medium. The method comprises the steps of monitoring a target battery, extracting battery performance parameters, processing to obtain a comprehensive health value of the battery, collecting real-time battery body temperature, real-time residual electric quantity and user behavior data of the target battery, processing in combination with the comprehensive health value of the battery, and obtaining electricity demand confidence coefficient; judging whether a user has an emergency power demand according to the power demand confidence, triggering a corresponding charging mode, monitoring the charging state of a target battery, extracting power supply characteristic parameters of a preset charging source, processing to obtain the charging type confidence, judging the type of the charging source according to the charging type confidence, and formulating a corresponding charging curve adaptation strategy; therefore, the technology for preventing abnormity caused by battery aging is realized.

The invention provides a wafer loading and unloading method and semiconductor process equipment, relates to the technical field of semiconductor manufacturing, and is designed for solving the problem of wafer bonding caused by residual charges in a wafer unloading process. The wafer loading and unloading method is applied to the semiconductor process equipment, the semiconductor process equipment comprises a reaction chamber, an electrostatic chuck and a thimble, the electrostatic chuck and the thimble are arranged in the reaction chamber, the thimble is arranged on the electrostatic chuck in a liftable mode, a wafer is adsorbed to the electrostatic chuck in the process, and the thimble is used for lifting the wafer from the electrostatic chuck. The wafer loading and unloading method comprises the following steps: before a wafer enters a reaction chamber, filling a first inert gas into the reaction chamber; and before the wafer is lifted from the electrostatic chuck by the ejector pin, filling a second inert gas into the reaction chamber. According to the invention, the problem of wafer bonding caused by residual charges in the wafer unloading process can be improved.

The invention discloses a gas-solid triboelectrification test method and device for a moving object, and relates to the technical field of triboelectrification measurement, and the method comprises the following steps: constructing a sample ball and gas triboelectrification model in a free falling process of a sample ball in a glove box with a built-in Faraday cage based on a Maxwell velocity distribution rule; carrying out standardized pretreatment on the sample small balls to remove residual charges on the surfaces of the sample small balls; performing air replacement in the glove box with the built-in Faraday cage until the internal air pressure and environmental parameters meet the test requirements, and determining the diameter range and the falling height of the sample small ball; filtering the electrostatic charge signal, reading the electrostatic charge quantity of the small sample ball at different falling heights, and determining the charge quantity increased by the small sample ball in the free falling process of the glove box with the built-in Faraday cage; the gas-solid friction electrification quantity of the moving object under the influence of the object moving speed, the effective friction area and the environment air pressure factor is measured in a non-contact mode.

The application discloses an outdoor shared power pile intelligent control management system and relates to the field of remote monitoring and management of power piles. The system comprises a shared power battery composed of a main energy storage battery and a backup battery group. The power supply priority of the backup battery is adjusted based on the power grid power consumption period grading, corresponding electricity price and power pile usage state switching. The residual power of a charging vehicle and the expected stay time of a user are obtained through a vehicle communication interface. A comprehensive urgency index is calculated based on the above information. A power pile power supply scheduling scheme containing a time-of-use billing strategy is generated in combination with the power supply state. The safety abnormality is judged according to the power pile power supply scheduling scheme and the monitored line temperature and leakage current. Remote enabling judgment logic is set for the power pile that is disabled due to safety abnormality, thereby solving the problems of low resource utilization, high operating cost, inflexible scheduling and lagging safety monitoring in the prior art.

This application relates to the field of vehicle technology, and in particular to a method, device, and vehicle for replenishing a vehicle's low-voltage battery. The method includes: in a vehicle's sleep state, acquiring relevant data about the low-voltage battery using a low-voltage battery management system, wherein the relevant data includes at least one of total voltage, total current, total temperature, and individual cell voltage; estimating the remaining charge of the low-voltage battery based on the relevant data, and determining whether the low-voltage battery meets preset replenishment conditions based on the relevant data and at least one of the remaining charge; if the preset replenishment conditions are met, waking up the vehicle and controlling the vehicle's power battery to replenish the low-voltage battery; if the preset replenishment conditions are not met, controlling the low-voltage battery management system to enter a sleep state, and waking up the low-voltage battery management system again after a preset interval. This solves the problems in related technologies where a low-voltage battery is depleted in a vehicle's sleep state, leading to the vehicle's inability to start normally and a poor user experience.

A device for measuring the quantity of charge remaining in at least one battery includes a DC current-DC current converter configured for extracting a quantity of charge from the battery for a measurement duration, and a microcontroller including a counter module and a processing module. The counter module is configured for counting the number of pulses of a pulse-train signal conditioned by a pulse conditioning stage. The processing module is configured, using the number of pulses obtained by the counter module, for determining the quantity of charge remaining in the at least one battery for the measurement duration. A fluid meter and / or a thermal energy meter includes the measurement device. A clipper module is also provided.