43 results about "Electrical cell signaling" patented technology

The present invention concerns an apparatus comprising a charger circuit and a control circuit. The charger circuit may be configured to generate a first power down control signal and a second power down control signal in response to (i) a first charge signal, (ii) a second charge signal, (iii) a supply voltage, and (iv) a host control signal. The control circuit may be configured to generate the first charge signal and the second charge signal in response to a first battery signal and a second battery signal. The control circuit may enter a power down state in response to the host control signal initiating the power down state.

The invention relates to the technical field of fault diagnosis, and discloses a power battery cell abnormal self-discharge identification method based on operation data, and the method comprises the following steps: 1, carrying out the analysis to obtain basic battery signal data; 2, cleaning the basic battery signal data to obtain standard battery signal data; step 3, selecting charging state data from the standard battery signal data; 4, performing feature extraction on the voltage data of each battery cell in the charging state data according to an extraction strategy to obtain a battery cell feature value; step 5, performing anomaly detection; 6, according to the real-time anomaly detection result, whether sudden self-discharge anomaly exists in the battery cell or not is judged; and according to a long-period anomaly detection result, judging whether continuous self-discharge anomaly exists in the battery cell or not. According to the method, the abnormal self-discharge condition of the battery cell can be identified in time, the identification accuracy and the high efficiency of fault identification and judgment are ensured, the self-discharge abnormal fault is positioned to the battery cell level, and the identification precision is high.

The invention relates to a vehicle battery management system and method, a storage medium, and a server system. The vehicle battery management system comprises a communication subsystem configured toreceive battery signal data in a distributed message queue, a metadata management subsystem which is configured to store battery information, and a distributed processing subsystem which is configuredto analyze the battery signal data according to the battery information to obtain analysis data and alarm data. In this way, centralized management of batteries can be achieved, and the defect that the batteries generate alarm / early warning locally is overcome.

The invention relates to the technical field of fault diagnosis, and discloses a power battery system connection abnormity fault safety early warning method comprising the following steps: 1, analyzing to obtain original battery signal data; 2, cleaning the original battery signal data to obtain primary battery signal data; 3, target voltage data are selected and obtained; 4, performing feature extraction on the target voltage data by adopting a difference quadratic sum method to obtain a difference cumulative matrix; step 5, calculating to obtain a mean difference matrix; 6, traversing column vectors of the mean difference matrix to obtain an upper limit of an abnormal threshold value of each battery cell; and 7, traversing the feature vectors of the battery cells in the mean difference matrix, and determining whether a connection abnormal fault exists or not. According to the method, the battery connection abnormal fault can be accurately identified, the fault false alarm rate can be effectively reduced, the fault can be quickly locked at the beginning of the fault, and the fault judgment efficiency is relatively high.

The invention provides a battery state-of-charge balance control system of a medium-voltage direct-hanging type energy storage system. The control system comprises a battery management unit, a voltageacquisition unit, a current acquisition unit, a battery state-of-charge acquisition unit, an in-phase control unit, an inter-phase control unit, a driving unit and an energy storage inverter, and thecontrol system performs analysis and calculation according to the acquired battery signals and performs in-phase and inter-phase control on the energy storage system, so that the energy storage inverter completes electric energy conversion, and balance control on the state of charge of the battery of the energy storage system is realized. According to the invention, the battery state-of-charge balance control of the energy storage system can be finished and the working quality and the service life of a battery of the energy storage system is ensured.

The invention discloses an intelligent logistics storage system. The system comprises a first electric telescopic column, a signal generator outer cover, a storage battery, a signal generator, a second electric telescopic column, a power connection opening, rollers, a supporting base, a supporting table, a signal receiver and a cargo trolley; a mounting groove used for mounting of the second electric telescopic column is formed in the surface of the supporting table, the mounting groove is located on the central position of the supporting table, a mounting base is welded the outer side surfaceof the second electric telescopic column, the outer diameter of the mounting base is larger than the diameter of the mounting groove, the signal receiver and the signal generator are in one-to-one corresponding, when the cargo trolley is used for conveying cargos, when the cargo trolley is in the range covered by the corresponding signal generator, the signal receiver can remind a worker that thetrolley reaches the designated storage area, and the phenomenon that the cargoes are not delivered to the designated area due to negligence of warehouse keepers can be avoided.

The invention relates to a reduction storage and reconstruction method of data of a battery management system. The method includes: maintaining original recording frequency of total voltage Ut and total current I unchanged, and still recording the total voltage and the total current by a recorder according to the original frequency; collecting voltage of single batteries at low frequency or by lowering data recording frequency of the data recorder to enable the battery management system to record battery data for a longer time in limited storage space; reconstructing low-frequency battery signals without distortion into signals recorded at high frequency through a frequency division model (M+D model). Through the method, time for storing the battery data by the recorder of the battery management system can be increased effectively, and battery data storage time period and battery data accuracy can be guaranteed without increasing storage space.

The embodiment of the invention relates to the technical field of charging control, and discloses a wireless headset which comprises a signal collection antenna, a signal sharing switch, a first RF-DC conversion module, a Bluetooth module and a battery, the signal collection antenna is connected with the signal sharing switch, the first RF-DC conversion module and the Bluetooth module are both connected with the signal sharing switch, and the signal sharing switch is connected with the Bluetooth module. The first RF-DC conversion module and the Bluetooth module are also connected with the battery at the same time, the signal sharing switch is used for realizing parallel transmission of the first radio frequency signal and the Bluetooth signal, and the first RF-DC conversion module is used for converting the first radio frequency signal transmitted by the signal sharing switch into direct current. The invention also discloses a charging method of the wireless earphone. By using the wireless earphone and the charging method of the wireless earphone provided by the invention, the wireless earphone can communicate when being charged, and the wireless earphone is charged through the first radio frequency signal transmitted by the terminal, so that the endurance of the wireless earphone is prolonged, and the user experience is improved.

The invention discloses a battery impedance tester and an internal resistance measuring method thereof. The battery impedance tester comprises an excitation signal generation module, a V-I conversion module, a signal conditioning module, an orthogonal decomposition module and a signal acquisition module. The excitation signal generation module is connected with the V-I conversion module and the orthogonal decomposition module, the V-I conversion module is further connected with the signal conditioning module and the battery to be tested, the signal conditioning module is further connected with the battery to be tested, and the signal conditioning module, the orthogonal decomposition module and the signal acquisition module are further connected in sequence. And the excitation signal generation module and the signal acquisition module are also connected with an external main control board. The battery impedance tester only integrates the excitation signal generation module, the V-I conversion module, the signal conditioning module, the orthogonal decomposition module and the signal acquisition module in an embedded manner, and does not comprise other control devices. The battery impedance testing device is low in cost, low in power consumption and small in size.

A battery pack according to one aspect of the present invention supplies power to a power-driven tool, the battery back being provided with a first battery signal terminal and a second battery signal terminal. The first battery signal terminal outputs, to the power-driven tool, a first signal indicating the enabling or disabling of discharge. The second battery signal terminal outputs, to the power-driven tool, a second signal indicating the enabling or disabling of discharge.

The invention discloses a battery replacement control method and system, electronic equipment and a storage medium. The battery replacing control method is achieved through cooperation of a vehicle clamping channel and a battery replacing device, the vehicle clamping channel is provided with a liftable vehicle carrying platform, the battery replacing device is provided with a liftable battery replacing platform, and the battery replacing control method comprises the steps that the height of the vehicle carrying platform and the height of the battery replacing platform are controlled according to a battery replacing signal so as to disassemble and assemble a battery on an electric vehicle, the method specifically comprises the steps that when the battery changing signal is a battery disassembling signal, the battery changing platform is controlled to reach the battery disassembling operation height and / or the vehicle carrying platform is controlled to reach the battery disassembling matching height; and the battery dismounting matching height is lower than the initial height of the vehicle carrying platform before lifting. The height of the vehicle carrying plane is changed by controlling the vehicle clamping lane and the battery replacing equipment and matching with the battery replacing progress, so that the height of the bottom of the vehicle is changed, the overall process of disassembling and assembling the battery is achieved, the battery replacing time of the vehicle is saved, and the battery replacing efficiency is improved.

The invention discloses a distributed centralized intelligent power supply management system. The system comprises a power supply output end, a power supply input end and a power supply management end; the power supply output end comprises a power supply output interface, a power supply output end bus and a power supply output management unit; the power supply input end comprises a power supply input interface, a power supply input end bus and a power supply input management unit; and the power supply management terminal comprises a power supply management IC, a wireless communication IC, a memory RAM, a peripheral circuit PCB, a battery signal collector AD and a communication antenna AC. The invention belongs to the technical field of power supply management and automatic control, and particularly relates to a distributed centralized intelligent power supply management system capable of realizing remote control and automatic control.

The invention discloses a charging device. The charging device comprises a wireless connection module used for searching a WIFI signal and being connected with WIFI, a communication module used for receiving a cell signal emitted by the intelligent terminal, a processing module used for setting charging parameters of the charging device according to the cell signal emitted by the intelligent terminal, and a control module used for supplying power for the intelligent terminal according to the charging parameters, wherein the cell signal comprises a present cell voltage and a cell temperature. According to the charging device, charging efficiency can be improved, in combination with the voltage and the temperature of the cell, damage to the intelligent terminal caused by overhigh temperature during charging can be avoided, cell protection is facilitated, service life of the cell is prolonged, charging safety is further facilitated, and better use experience of a user is realized.