Battery monitoring method and device

Abstract

The invention discloses a battery monitoring method and device, and the method comprises the steps: first slave control equipment can collect first battery data when a first battery is not assembled on powered equipment, the first battery data is transmitted to main control equipment through first wireless communication, and the main control equipment determines the state of the first battery according to the first battery data, and the batteries do not need to be checked one by one, so that the detection efficiency of the state of the unassembled batteries is improved.

Description

Battery monitoring method and device Technical Field

[0001] The present application relates to the field of battery technology, and in particular to a battery monitoring method and device. Background Art

[0002] As the global response to climate change accelerates, demand for new energy vehicles and energy storage is increasing. Lithium batteries, a key technology in these two sectors, pose increasingly significant safety risks as their adoption increases. Large quantities of unassembled batteries are stored in production workshops and warehouses, during battery transportation (by sea, air, and land), and during recycling and secondary use. Currently, the industry lacks effective performance testing and safety management methods for these large quantities of unassembled batteries.

[0003] For batteries that are not installed on the powered device, a large number of battery testing equipment are currently generally used to recharge and discharge the batteries one by one and test and troubleshoot them, which is time-consuming, labor-intensive and costly.

[0004] Summary of the Invention

[0005] The present application provides a battery monitoring method and device for improving the efficiency of status detection of unassembled batteries.

[0006] A first aspect of the present application provides a battery monitoring system, which includes a first slave control device and a master control device; the first slave control device is used to collect first battery data when the first battery is not installed in a powered device, and to send the first battery data to the master control device via a first wireless communication, wherein the first slave control device is detachably connected to the first battery, and the first wireless communication is a wireless communication link between the first slave control device and the master control device; the master control device is used to determine the status of the first battery based on the first battery data.

[0007] In the above aspect, a first slave control device is configured for the first battery. The first slave control device can collect first battery data when the first battery is not installed in the powered device and send it to the master control device through the first wireless communication. The master control device determines the status of the first battery from the first battery data, and there is no need to check the batteries one by one, thereby improving the efficiency of status detection of unassembled batteries.

[0008] In one possible implementation, the master control device is further used to obtain attribute information of the first battery through the first wireless communication, determine a control strategy for the first battery based on the attribute information, and send the control strategy to the first slave control device; the first slave control device is further used to collect first battery data according to the control strategy.

[0009] In the above possible implementation, the master device can obtain attribute information of the first battery from the first slave device via the first wireless communication and generate a control strategy corresponding to the first battery based on the attribute information. That is, for any attribute information, there is a control strategy corresponding to the attribute information. The master device can send the control strategy to the first slave device via the first wireless communication, and the first slave device can adjust its own acquisition strategy according to the control strategy. By configuring corresponding control strategies for batteries with different attribute information, the monitoring effect of the battery is improved.

[0010] In a possible implementation, the attribute information includes at least one of model, type, manufacturer, production date, lifespan, capacity, internal resistance, and identification.

[0011] In one possible implementation, the first slave device is further used to send pre-stored attribute information to the master device via the first wireless communication; or, the first slave device is further used to obtain attribute information through the input interface and send the attribute information to the master device via the first wireless communication; or, the master device is further used to obtain identification information of the first battery via the first wireless communication and obtain attribute information corresponding to the identification from the cloud server.

[0012] In the above possible implementations, the attribute information sent by the first slave device to the master device via the first wireless communication may be pre-stored in the first slave device, and the first slave device may directly retrieve the attribute information from local data and transmit it to the master device. Alternatively, the attribute information may be manually provided to the first slave device and then transmitted from the first slave device to the master device via the first wireless communication. In other words, the first slave device may be equipped with an input interface, and the attribute information may be manually input through the input interface. Alternatively, the master device may only retrieve the identification information of the first battery via the first wireless communication, and the cloud server may provide the attribute information corresponding to the identification information. By providing multiple methods, the flexibility of the solution is increased.

[0013] In one possible implementation, the master control device is further used to obtain identification information of the first battery through the first wireless communication, obtain the control strategy corresponding to the identification information from the cloud server, and send the control strategy to the first slave control device; the first slave control device is further used to collect the first battery data according to the control strategy.

[0014] In the above possible implementation, the control policy sent by the master device to the first slave device can also be provided by a cloud server. That is, after the master device obtains the identifier of the first battery through the first wireless communication, it can send the identifier from the cloud server. The cloud server can determine the control policy corresponding to the first battery based on the identifier and then send the control policy to the master device. The cloud server has higher computing power and can divide more control policies based on a wider range of attribute information, thereby improving the monitoring effect of the battery.

[0015] In a possible implementation manner, the main control device is further configured to adjust the control strategy according to the status.

[0016] In the above possible implementation manner, after determining the status based on the battery data, the master device can further adjust the control strategy for the slave device based on the status. When there may be an abnormality or an abnormality, the acquisition frequency or type can be increased to improve the battery monitoring accuracy.

[0017] In a possible implementation, the main control device is further configured to send the first battery data to the cloud server and obtain the adjusted control strategy from the cloud server.

[0018] In the above possible implementation manner, the main control device can also send the first battery data to the cloud server, and the cloud server with high computing power can process more types of data to obtain a more accurate control strategy and improve the monitoring effect.

[0019] In a possible implementation, the control strategy includes one or more of sampling frequency, sampling quantity, and sampling type.

[0020] In a possible implementation manner, the main control device is further configured to, when determining that the state is abnormal, issue an alarm, where the alarm is used to remind the first battery that an abnormality has occurred.

[0021] In the above possible implementation manner, when the main control device finds that the battery status is abnormal, it can promptly remind the staff to check, thereby improving the safety of battery storage.

[0022] In a possible implementation, the master device is further configured to update attribute information stored in the first slave device.

[0023] In the above possible implementation manner, the attribute information of batteries in the same batch is reset to facilitate management.

[0024] In one possible embodiment, the system also includes a second slave device, which is used to monitor the second battery data of the second battery and send the second battery data to the master device through a second wireless communication, wherein the second battery is not installed on the powered device, the second slave device and the second battery are detachably connected, and the second wireless communication is a wireless communication link between the second slave device and the master device; the second slave device is also used to send the first battery data to the master device through the second wireless communication when the first wireless communication is unavailable.

[0025] In the above possible implementation, when the first wireless communication is unavailable, the first slave device can first send the first battery data to the second slave device, which then sends the first battery data to the master device via the second wireless communication. This increases interaction between slave devices, thereby avoiding potential problems with wireless communication.

[0026] A second aspect of the present application provides a battery monitoring method, which includes: a first slave control device collecting first battery data when the first battery is not installed on a powered device, wherein the first slave control device is detachably connected to the first battery; the first slave control device sends the first battery data to a master control device via a first wireless communication, and the first wireless communication is a wireless communication link between the first slave control device and the master control device.

[0027] In one possible implementation, before the first slave device collects the first battery data of the first battery, the method further includes: the first slave device sends attribute information of the first battery to the master device through the first wireless communication; the first slave device receives a control strategy from the master device, where the control strategy is determined by the master device based on the attribute information; the above-mentioned step of the first slave device collecting the first battery data of the first battery includes: the first slave device collects the first battery data according to the control strategy.

[0028] In a possible implementation, the attribute information includes at least one of model, type, manufacturer, production date, lifespan, capacity, internal resistance, and identification.

[0029] In one possible implementation, the above-mentioned step of the first slave device sending the attribute information of the first battery to the master device through the first wireless communication includes: the first slave device sending the pre-stored attribute information to the master device through the first wireless communication; or, the first slave device obtaining the attribute information through the input interface; and the first slave device sending the attribute information to the master device through the first wireless communication.

[0030] In a possible implementation, the control strategy includes one or more of sampling frequency, sampling quantity, and sampling type.

[0031] In a possible implementation, the method further includes: the first slave device receiving update information from the master device; and the first slave device updating internally stored attribute information according to the update information.

[0032] In one possible implementation, the method further includes: when the first wireless communication is unavailable, the first slave device sends the first battery data to the master device via the second wireless communication, wherein the second wireless communication is a wireless communication link between the second slave device and the master device, the second slave device is used to monitor the second battery data of the second battery, and send the second battery data to the master device via the second wireless communication, and the second battery is not installed on the powered device.

[0033] A third aspect of the present application provides a battery monitoring method, which includes: a master control device obtaining first battery data from a first slave control device through a first wireless communication, wherein the first wireless communication is a wireless communication link between the first slave control device and the master control device, and the first battery data is monitoring data when the first battery is not installed on the powered device; the master control device determines the status of the first battery based on the first battery data.

[0034] In one possible implementation, before the master control device receives the first battery data from the first slave control device, the method further includes: the master control device obtains attribute information of the first battery through the first wireless communication; the master control device determines a control strategy for the first battery based on the attribute information; and the master control device sends the control strategy to the first slave control device.

[0035] In a possible implementation, the attribute information includes at least one of model, type, manufacturer, production date, lifespan, capacity, internal resistance, and identification.

[0036] In one possible implementation, the above-mentioned step of the master device obtaining the attribute information of the first battery from the first slave device through the first wireless communication includes: the master device receiving the attribute information from the first slave device through the first wireless communication; or, the master device receiving the identification information of the first battery from the first slave device through the first wireless communication; and the master device obtaining the attribute information from the cloud server based on the identification information.

[0037] In one possible implementation, before the master control device obtains the first battery data from the first slave control device, the method further includes: the master control device receives identification information of the first battery from the first slave control device through the first wireless communication; the master control device obtains the control strategy corresponding to the identification information from the cloud server; and the master control device sends the control strategy to the first slave control device.

[0038] In a possible implementation, after the main control device determines the state of the first battery according to the first battery data, the method further includes: the main control device adjusting a control strategy according to the state.

[0039] In a possible implementation, the control strategy includes one or more of sampling frequency, sampling quantity, and sampling type.

[0040] In a possible implementation, the method further includes: the main control device determining that the state is abnormal, and the main control device issuing an alarm, where the alarm is used to remind the first battery that the abnormality occurs.

[0041] In a possible implementation manner, the method further includes: the master device updating the attribute information stored in the first slave device.

[0042] The fourth aspect of the present application provides a battery monitoring method, which includes: a cloud server receives identification information of a first battery from a main control device; the cloud server determines a control strategy for the first battery based on the identification information, and the control strategy is used to collect data of the first battery when the first battery is not installed on the powered device; and the cloud server sends the control strategy to the main control device.

[0043] In a possible implementation, the method further includes: the cloud server determining the attribute information of the first battery based on the identification information; and the cloud server sending the attribute information to the main control device.

[0044] In a possible implementation, the attribute information includes at least one of model, type, manufacturer, production date, lifespan, capacity, internal resistance, and identification.

[0045] In a possible implementation, the method further includes: the cloud server receiving first battery data from the main control device; and the cloud server adjusting the control strategy according to the first battery data.

[0046] In a possible implementation, the control strategy includes one or more of sampling frequency, sampling quantity, and sampling type.

[0047] In a fifth aspect, the present application provides a battery monitoring device that can implement the method of the second aspect or any possible implementation of the second aspect. The device includes corresponding units or modules for executing the above-mentioned method. The units or modules included in the device can be implemented through software and / or hardware. The device can be, for example, a network device, or a chip, chip system, or processor that supports the network device to implement the above-mentioned method. It can also be a logic module or software that can implement all or part of the functions of the network device.

[0048] In a sixth aspect, the present application provides a battery monitoring device that can implement the method in the third aspect or any possible implementation of the third aspect. The device includes corresponding units or modules for executing the above-mentioned method. The units or modules included in the device can be implemented through software and / or hardware. The device can be, for example, a network device, or a chip, chip system, or processor that supports the network device to implement the above-mentioned method. It can also be a logic module or software that can implement all or part of the functions of the network device.

[0049] In a seventh aspect, the present application provides a battery monitoring device that can implement the method in the fourth aspect or any possible implementation of the fourth aspect. The device includes corresponding units or modules for executing the above-mentioned method. The units or modules included in the device can be implemented through software and / or hardware. The device can be, for example, a network device, or a chip, chip system, or processor that supports the network device to implement the above-mentioned method. It can also be a logic module or software that can implement all or part of the functions of the network device.

[0050] In an eighth aspect, the present application provides a battery monitoring device, comprising: a processor coupled to a memory, the memory configured to store instructions, wherein when the instructions are executed by the processor, the battery monitoring device implements the method of the second aspect or any possible implementation of the second aspect. The battery monitoring device may be, for example, a network device, or a chip or chip system that supports the network device in implementing the method.

[0051] In a ninth aspect, the present application provides a battery monitoring device, comprising: a processor coupled to a memory, the memory being configured to store instructions, wherein when the instructions are executed by the processor, the battery monitoring device implements the method of the third aspect or any possible implementation of the third aspect. The battery monitoring device may be, for example, a network device, or a chip or chip system that supports the network device in implementing the method.

[0052] In a tenth aspect, the present application provides a battery monitoring device, comprising: a processor coupled to a memory, the memory being configured to store instructions, wherein when the instructions are executed by the processor, the battery monitoring device implements the method of the fourth aspect or any possible implementation of the fourth aspect. The battery monitoring device may be, for example, a network device, or a chip or chip system that supports a network device in implementing the method.

[0053] In the eleventh aspect of the present application, a computer-readable storage medium is provided, which stores instructions. When the instructions are executed by a processor, the method provided by the aforementioned second aspect or any possible implementation of the second aspect, the aforementioned third method or any possible implementation of the third method, and the aforementioned fourth method or any possible implementation of the fourth method is implemented.

[0054] The twelfth aspect of the present application provides a computer program product, which includes computer program code. When the computer program code is executed on a computer, it implements the method provided by the aforementioned second aspect or any possible implementation of the second aspect, the aforementioned third method or any possible implementation of the third method, and the aforementioned fourth method or any possible implementation of the fourth method. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] FIG1 is an architecture diagram of an unassembled battery monitoring system provided in an embodiment of the present application;

[0056] FIG2 is a schematic diagram of the structure of a battery monitoring system provided in an embodiment of the present application;

[0057] FIG3 is a flow chart of a battery monitoring method provided in an embodiment of the present application;

[0058] FIG4 is a schematic diagram of a battery monitoring structure provided in an embodiment of the present application;

[0059] FIG5 is a schematic diagram of another battery monitoring structure provided in an embodiment of the present application;

[0060] FIG6 is a schematic diagram of another battery monitoring structure provided in an embodiment of the present application;

[0061] FIG7 is a schematic diagram of a control process for adding a battery to a main control device according to an embodiment of the present application;

[0062] FIG8 is a schematic structural diagram of a battery monitoring device provided in an embodiment of the present application;

[0063] FIG9 is a schematic structural diagram of another battery monitoring device provided in an embodiment of the present application;

[0064] FIG10 is a schematic structural diagram of another battery monitoring device provided in an embodiment of the present application;

[0065] FIG11 is a schematic structural diagram of another battery monitoring device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0066] The embodiments of the present application provide a battery monitoring method and apparatus for improving the efficiency of status detection of unassembled batteries.

[0067] The following describes the embodiments of the present application in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present application, rather than all the embodiments. Those skilled in the art will appreciate that with the development of technology and the emergence of new scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.

[0068] The terms "first," "second," and the like in the specification and claims of this application and in the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a particular order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate so that the embodiments described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "including" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions, e.g., a process, method, system, product, or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to these processes, methods, products, or apparatus.

[0069] In the context of global response to climate warming and accelerated response, the demand for new energy vehicles and energy storage in various countries has further increased. As a key technology for new energy vehicles and energy storage, the safety hazards of lithium batteries have become increasingly prominent as the promotion rate increases. In various application scenarios such as production workshops and storage warehouses, battery transportation processes (such as sea, air, and land transportation), battery recycling, and cascade utilization, there are a large number of stacked batteries that are not assembled on the powered equipment. The safety management of these batteries is particularly important. Figure 1 is an architecture diagram of an unassembled battery monitoring system provided by an embodiment of the present application, the system includes a main control device 11 and a sensor 12, wherein the sensor 12 can be a smoke probe, a temperature probe, etc., and the stacked battery stack 13 can be detected using a smoke probe or a temperature probe. When it is detected that the temperature around the battery stack 13 or the smoke particle size reaches a threshold, the sensor 12 can issue a warning to the main control device 11, causing the main control device 11 to issue an alarm to remind the staff to check.

[0070] The above alarm will only function after the battery has experienced thermal runaway. For early warning of batteries that are not usually installed on the powered equipment, a large number of battery testing equipment are generally used to recharge and discharge the batteries one by one and test and troubleshoot. However, this method is time-consuming, labor-intensive, and costly.

[0071] To solve the above problems, an embodiment of the present application provides a battery monitoring system, which is described as follows.

[0072] Please refer to FIG. 2 , which shows a battery monitoring system provided by an embodiment of the present application. The system includes a monitoring center 20 and multiple slave devices 21 (such as slave device 1 , slave device 2 , . . . , slave device n).

[0073] Among them, the monitoring center 20 is equipped with a master control device 11, and the slave control device 21 has a wireless communication module 211 and a sampling module 212. Each slave control device 21 is detachably connected to the battery 22 (slave control device 1 is connected to battery 1, slave control device 2 is connected to battery 2,..., slave control device n is connected to battery n). The sampling module 212 can collect battery data when the battery is not assembled with the powered device, and send it to the master control device 11 through the wireless communication module 211.

[0074] The main control device 11 has a wireless communication module 111 and a calculation module 112 . The wireless communication module 111 can receive battery data from the wireless communication module 211 and determine the battery status according to the battery data through the calculation module 112 .

[0075] Exemplarily, the first slave device is one of the slave devices 21, and the first battery is the one of the batteries 22 connected to the first slave device. That is, the first slave device 21 and the first battery 22 are detachably connected, and the first battery 22 is not mounted on the powered device. The first slave device 21 collects first battery data of the first battery 22 and transmits the first battery data to the master device 11 via first wireless communication. The master device 11 determines the status of the first battery 22 based on the first battery data.

[0076] The operations performed by the first slave device 21 and the master device 11 in FIG. 2 may be specifically described as follows.

[0077] Please refer to FIG3 , which is a flow chart of a battery monitoring method provided in an embodiment of the present application. The method includes:

[0078] Step 301 : The first slave device 21 collects first battery data when the first battery 22 is not installed in the powered device, wherein the first slave device 21 is detachably connected to the first battery 22 .

[0079] In this embodiment, each or each stack of batteries can be configured with a slave control device. Taking one-to-one configuration as an example, the first battery 22 is configured with a first slave control device 21. The first battery 22 is a battery that is not assembled on the powered device. The first battery 22 can be in the form of, for example, a battery in a production workshop and storage warehouse, a battery transportation process (such as sea, air, and land transportation), battery recycling, or cascade utilization. The first slave control device 21 is detachably connected to the first battery 22, that is, the first slave control device 21 can be separated from the first battery 22 when not in use, and assembled with the first battery 22 when in use. At this time, the first slave control device 21 can collect the first battery data when the first battery 22 is not assembled. The first battery 22 can be a battery cell, a battery module, a battery system, etc., which is not limited here.

[0080] Among them, the first battery data can be a signal inside or outside the battery cell, battery cell group or module, which is set to voltage, temperature, current, smoke sensor, internal resistance, insulation internal resistance, gas composition, gas pressure, gas concentration, force, potential, electrolyte signal, pressure signal, potential of the positive and negative pole pieces of the battery cell, battery cell internal resistance, battery cell force, BMS_12V, BMS_12V-, auxiliary power supply negative A-, auxiliary power supply negative A+, BMS power supply ground, BMS wake-up, collision signal, BMS debugging CAN_H, BMS debugging CAN_L, charging CAN high, charging CAN low, high voltage interlock HVIL_OUT, high voltage Interlock HVIL_IN, battery CAN high, battery CAN low, vehicle CAN high, vehicle CAN low, relay_12V+, relay_12V-, electronic control unit communication CAN_H, electronic control unit communication CAN_SHLD, electronic control unit communication CAN_L, DC charging seat DC positive pole temperature sensor, DC charging seat DC negative pole temperature sensor, charging confirmation, fast charging contactor drive power positive pole, fast charging contactor drive power negative pole, one or more of the reserved signals, and other information that can represent the status of battery cells, modules, and battery systems. The type and quantity are not limited here.

[0081] The first slave control device 21 can be powered by the connected first battery 22, or can be connected to an external power supply and powered and operated from the external power supply, which is not limited in this embodiment of the present application.

[0082] Step 302: The first slave device 21 sends the first battery data to the master device 11 via the first wireless communication. The first wireless communication is a wireless communication link between the first slave device 21 and the master device 11. Correspondingly, the master device 11 receives the first battery data via the first wireless communication.

[0083] In this embodiment, the first slave device 21 also has a wireless communication function. After collecting the first battery data, it can also send the first battery data to the master device 11 through the first wireless communication. The master device 11 can be a control device used to manage all batteries during storage or transportation, such as a computer or a control panel.

[0084] Among them, the wireless communication methods include one or more of Bluetooth communication, ZigBee, Wireless Fidelity, infrared, radio frequency, near-field communication, ultra-wideband technology, wireless local area network, 60GHz first wireless communication technology, visible light communication technology, and ad hoc network technology.

[0085] Among them, the initial collection strategy for the first slave device 21 to collect the first battery data can be provided by the master device 11. For example, the master device 11 can obtain the attribute information of the first battery from the first slave device 21 through the first wireless communication, and can generate a control strategy corresponding to the first battery based on the attribute information. That is, for any attribute information, there is a control strategy corresponding to the attribute information. The master device 11 can send the control strategy to the first slave device 21 through the first wireless communication, and the first slave device can adjust its own collection strategy according to the control strategy. The attribute information may include at least one of the model, type, manufacturer, production date, life, capacity, internal resistance, and identification. The control strategy can be one or more of the sampling frequency, sampling quantity, and sampling type collected by the first slave device 21. In another example, the initial collection strategy can also be a self-inspection mode, that is, data can be collected once a day, week, or month, which is not limited here.

[0086] The attribute information sent by the first slave device 21 to the master device 11 via the first wireless communication may be pre-stored in the first slave device 21. The first slave device 21 may directly obtain the attribute information from local data and send it to the master device 11. The attribute information may also be manually provided to the first slave device 21 and then sent by the first slave device 21 to the master device 11 via the first wireless communication. That is, the first slave device 21 is configured with an input interface, and the attribute information may be manually input through the input interface.

[0087] The attribute information may not be provided by the first slave device 21. The master device 11 may first obtain the identifier of the first battery from the first slave device 21 through the first wireless communication. The identifier of the first battery may also be pre-stored in the first slave device 21, or manually input into the first slave device 21 through the input interface. The master device 11 may send a request message carrying the identifier to the cloud server to request the attribute information corresponding to the identifier from the cloud server. The cloud server may feedback the corresponding attribute information after receiving the identifier. The cloud server may be a national battery traceability platform, or an enterprise cloud platform, such as a vehicle cloud platform. For example, please refer to the battery monitoring structure diagram shown in FIG4. Based on the system architecture of FIG2, the master device 11 obtains the identifier from the first slave device 21 and sends the identifier to the cloud server 41. The cloud server 41 then feedbacks the attribute information corresponding to the identifier to the master device 11. The attribute information may be one or more of battery code, product name, battery model, rated capacity, rated energy, charging limit voltage, nominal voltage, battery positive and negative polarity, battery material system (or code), manufacturer (or manufacturer code), production date or batch number, internal resistance, battery state of charge (SOC), battery aging degree (SOH), battery safety operating parameters, etc.

[0088] In another example, the identifier can be sent to the master device 11 after other identification devices identify the first battery. The battery is not equipped with a slave device at the beginning. Before obtaining the first battery data, the master device 11 can identify the battery to be inspected through the identification device, obtain the identifier of the first battery 22, and obtain the attribute information of the first battery 22 from the cloud server. After determining the control strategy, the first slave device 21 is configured for the first battery 22 so that the first slave device 21 can collect the first battery data according to the control strategy. The way in which the first battery 22 is configured with the first slave device 21 can be that the master device 11 controls the machine installation, or it can be manually installed, which is not limited here. The identification device can be one or more of radio frequency identification (RFID), infrared, code scanning or graphic recognition systems. Please refer to another battery monitoring structure schematic diagram shown in Figure 5, in which, when the first battery 22 has not yet been configured with the first slave control device 21, the master control device 11 can use the identification device 51 to identify the first battery 22 with an identification mark or other label features to obtain the attribute information corresponding to the mark from the cloud server to determine the corresponding control strategy, and then arrange to configure the first slave control device 21 for the first battery 22.

[0089] In an embodiment of the present application, the control strategy sent by the master control device 11 to the first slave control device 21 can also be provided by a cloud server, that is, after the master control device 11 obtains the identifier of the first battery through the first wireless communication, it can send the identifier to the cloud server. The cloud server can determine the control strategy corresponding to the first battery based on the identifier, and then send the control strategy to the master control device 11.

[0090] The first slave control device 21 may also include a simple judgment function that can determine whether some data in the first battery data exceeds a preset threshold. For example, if the first battery 22 is short-circuited, the voltage of the first battery 22 will be much lower than the normal voltage value, and the temperature in the first battery data will also be higher than normal. At this time, the first slave control device 21 can determine that the first battery data of the first battery 22 is abnormal, and generate an alarm message to send to the master control device 11 to indicate that the first battery 22 is abnormal and needs to be inspected in time. After receiving the alarm message, the master control device 11 can issue an alarm to instruct the staff to inspect the first battery 22. The first slave control device 21 can send the alarm message before step 302, after step 302, or at the same time as the first battery data, which is not limited here. The alarm can be issued in the form of sound or light.

[0091] When a problem occurs in the first wireless communication between the first slave device 21 and the master device 11, that is, when the first slave device 21 is unable to directly send data to the master device 11, the first slave device 21 may first send the data to another slave device, such as a second slave device. The second slave device is detachably connected to the second battery, and the second slave device can monitor the second battery data when the second battery is not installed in the powered device, and send it to the master device 11 via the second wireless communication. If the first slave device 21 is unable to send the first battery data to the master device 11 via the first wireless communication, that is, when the first wireless communication is unavailable, the first slave device 21 may first send the first battery data to the second slave device, and then the second slave device will send the first battery data to the master device 11 via the second wireless communication. Referring to FIG6 , another schematic diagram of a battery monitoring system is shown. The master device 11 can simultaneously receive battery data from multiple slave devices. Accordingly, the master device 11 can also issue control strategies based on the attributes of the batteries monitored by the slave devices. FIG6 takes three slave devices as an example: a first slave device 21, a second slave device 61, and a third slave device 62. The first slave device 21 collects first battery data from a first battery 22 and sends it to the master device 11 via a first wireless communication. The second slave device 61 collects second battery data from a second battery 63 and sends it to the master device 11 via a second wireless communication. The third slave device 62 collects third battery data from a third battery 64 and sends it to the master device 11 via a third wireless communication. If the first wireless communication is unavailable, the second slave device 61 sends the first battery data to the master device 11 via the second wireless communication.

[0092] Step 303: The main control device 11 determines the status of the first battery 22 according to the first battery data.

[0093] In this embodiment, after receiving the first battery data, the main control device 11 can process the first battery data to determine whether the parameters in the first battery data are within the safety threshold. If they are within the safety threshold, it indicates that the status of the first battery 22 is normal. If the parameters in the first battery data exceed the safety threshold, it indicates that the status of the first battery 22 is abnormal and requires timely inspection. The status can include performance status and / or safety status. The performance status refers to the status of performance such as battery capacity and lifespan. The safety status refers to the status of data that affects battery safety, such as the battery voltage or temperature.

[0094] When the main control device 11 determines that the state of the first battery 22 is abnormal, it can issue an alarm to remind the staff to check. The staff can determine from the display interface of the main control device 11 that the first battery 22 is abnormal.

[0095] When the status of the first battery 22 is abnormal, the first battery 22 may have been determined to have a problem or may have a problem. In this case, the master control device 11 may further adjust the monitoring strategy for the battery data of the first battery 22, that is, adjust the sampling frequency, number of samples, and type of samples for the first battery 22, and send the monitoring strategy to the first slave control device 21 for execution. The sampling frequency adjusted by the monitoring strategy may be a sampling frequency such as every hour, every minute, or every second. The number of samples and the type of samples are related to the type of abnormality determined by the master control device 11, and are not further described here.

[0096] For batteries with low safety factors, the monitoring strategy can optionally increase the sampling frequency, number of samples, and types of samples to facilitate more real-time and comprehensive monitoring of the battery status. The conditions for determining a low battery safety factor can be: aging state SOH ≤ 80% or other set values, internal resistance increase rate ≥ 100% or other set values, self-discharge k value ≥ 2mV / d or other set values, temperature ≥ 45°C or other set values, state of charge ≤ 5% or other set values, or other parameters that affect battery safety, which are not limited here.

[0097] In this embodiment, since the main control device 11 may have limited computing power, in order to improve the accuracy of determining the status of the first battery 22, the main control device 11 may also request assistance from the cloud server. The main control device 11 may send the first battery data to the cloud server, which, with its high computing power, processes the first battery data to identify the status of the first battery 22. The cloud server may then adjust the control strategy for the main control device 11 based on the identified status. The main control device 11 may also send processed data to the cloud server, which then performs secondary processing on the processed data, analyzing its relationship to various variables such as time, mileage, aging, and temperature, or secondary variables calculated based on these variables, to obtain dynamic thresholds and change trends to determine the status of the first battery 22.

[0098] When the cloud server determines that the first battery 22 is abnormal, it can also send a warning signal to the main control device 11, indicating that the first battery 22 is abnormal. The main control device 11 can promptly issue an alarm and indicate the abnormality of the first battery 22 through sound or interface prompts. The determination condition for battery abnormality can be: when the battery data or the secondary processed data obtained through processing, analysis and calculation exceeds a dynamic threshold, or its change trend is greater than, less than, or different from the change trend obtained through calculation and analysis.

[0099] The master device 11 may also update the attribute information stored in the slave device. For example, the master device 11 may send update information carrying new attribute information to the first slave device 21, and the first slave device 21 may replace the local attribute information with the new attribute information.

[0100] The master device 11 can also update the version of the slave device, such as sending an update control instruction and updated battery management control software, algorithms and parameters to the first slave device 21. The first slave device 21 uses the updated battery management control software, algorithms and parameters for update.

[0101] The identification of the first battery 22 can be the factory-installed identification or re-encoded by the master device 11 for easier management. The master device 11 can re-encode multiple slave devices connected via wireless communication and then send the new identifications to the corresponding slave devices. Accordingly, upon receiving the new identification, the first slave device 21 can use the new identification as the identification of the first battery 22.

[0102] In the embodiment of the present application, the control process of adding a master control device to each battery can be shown in Figure 7. Step 701: Determine whether the appearance of the battery to be monitored is normal. The judgment method may include: no damage, dents, leakage, bulging, etc. If so, execute step 703, otherwise execute step 702; Step 702: Recycle the battery to be monitored; Step 703: The master control device determines whether the wireless connection is completed, that is, whether the identification can be obtained through the wireless communication of the slave control device. If so, execute step 704, otherwise execute step 705; Step 704: The master control device determines whether the attribute information can be obtained from the cloud server through the identification. If so, execute step 708, otherwise execute step 707; Step 705: The master control device determines whether the battery to be monitored has a complete barcode through image recognition. If so, execute step 704, otherwise execute step 706; Step 706: Manually identify the identification of the battery to be monitored, and if it cannot be identified, execute 707: test the attribute information of the battery to be monitored offline; step 708: the master device determines whether the battery to be monitored is normal, for example, whether the SOH of the battery to be monitored is higher than the preset value. If so, execute step 709; if not, execute step 702; step 709: the master device recodes the battery to be monitored, that is, updates the identification of the battery to be monitored; step 710: determine whether the battery to be monitored is installed with a slave device, if so, execute step 712; if not, execute step 711; step 711: install the slave device to the battery to be monitored; step 712: the master device establishes wireless communication with the slave device; step 713: the master device sends the control strategy to the slave device; step 714: the slave device collects battery data to the master device according to the control strategy; step 715: the master device determines the status of the battery to be monitored based on the battery data.

[0103] In an embodiment of the present application, a first slave control device is configured for a first battery that is not installed on a powered device. The first slave control device can collect first battery data of the first battery and send it to a master control device via a first wireless communication. The master control device determines the status of the first battery from the first battery data, eliminating the need to check each battery one by one, thereby improving the efficiency of status detection of unassembled batteries.

[0104] The battery monitoring method is described above. The following describes various devices for executing the method.

[0105] Please refer to FIG8 , which is a schematic diagram of the structure of a battery monitoring device provided in an embodiment of the present application. The device 80 includes:

[0106] The processing unit 801 is configured to collect first battery data when the first battery is not installed in a powered device, wherein the first slave device is detachably connected to the first battery;

[0107] The transceiver unit 802 is configured to send the first battery data to the master device via a first wireless communication, where the first wireless communication is a wireless communication link between the first slave device and the master device.

[0108] The processing unit 801 is used to execute step 301 in the method embodiment of FIG3 , and the transceiver unit 802 is used to execute step 302 in the method embodiment of FIG3 .

[0109] Optionally, the transceiver unit 802 is further configured to:

[0110] sending attribute information of the first battery to the main control device via the first wireless communication;

[0111] Receiving a control strategy from a master device, where the control strategy is determined by the master device based on attribute information;

[0112] The processing unit 801 is specifically configured to:

[0113] The first battery data is collected according to the control strategy.

[0114] Optionally, the attribute information includes at least one of model, type, manufacturer, production date, lifespan, capacity, internal resistance, and identification.

[0115] Optionally, the transceiver unit 802 is specifically configured to:

[0116] Sending the pre-stored attribute information to the main control device via the first wireless communication; or,

[0117] Get attribute information through the input interface;

[0118] The attribute information is sent to the main control device via the first wireless communication.

[0119] Optionally, the control strategy includes one or more of sampling frequency, sampling quantity, and sampling type.

[0120] Optionally, the transceiver unit 802 is further configured to:

[0121] Receive update information from the master device;

[0122] The processing unit 801 is further configured to:

[0123] The stored attribute information is updated according to the update information.

[0124] Optionally, the transceiver unit 802 is specifically configured to:

[0125] When the first wireless communication is unavailable, the first battery data is sent to the master device via the second wireless communication, wherein the second wireless communication is a wireless communication link between the second slave device and the master device, and the second slave device is used to monitor the second battery data when the second battery is not installed on the powered device, and send the second battery data to the master device via the second wireless communication.

[0126] Please refer to FIG9 , which is a schematic diagram of the structure of another battery monitoring device provided in an embodiment of the present application. The device 90 includes:

[0127] The transceiver unit 901 is configured to obtain first battery data from a first slave device via a first wireless communication, wherein the first wireless communication is a wireless communication link between the first slave device and the master device, and the first battery data is monitoring data when the first battery is not installed on a powered device;

[0128] The processing unit 902 is configured to determine a state of the first battery according to the first battery data.

[0129] The transceiver unit 901 is used to execute step 302 in the method embodiment of FIG. 3 , and the processing unit 902 is used to execute step 303 in the method embodiment of FIG. 3 .

[0130] Optionally, the transceiver unit 901 is further configured to:

[0131] acquiring attribute information of the first battery through the first wireless communication;

[0132] The processing unit 902 is further configured to:

[0133] determining a control strategy for the first battery based on the attribute information;

[0134] The transceiver unit 901 is further configured to:

[0135] Send the control strategy to the first slave device.

[0136] Optionally, the attribute information includes at least one of model, type, manufacturer, production date, lifespan, capacity, internal resistance, and identification.

[0137] Optionally, the transceiver unit 901 is specifically configured to:

[0138] receiving attribute information from a first slave device via a first wireless communication; or,

[0139] identification information of the first battery from the first slave device via the first wireless communication;

[0140] Obtain attribute information from the cloud server based on the identification information.

[0141] Optionally, the transceiver unit 901 is further configured to:

[0142] receiving identification information of the first battery from the first slave device through the first wireless communication;

[0143] Obtain the control policy corresponding to the identification information from the cloud server;

[0144] Send the control strategy to the first slave device.

[0145] Optionally, the processing unit 902 is further configured to:

[0146] Adjust control strategy according to status.

[0147] Optionally, the control strategy includes one or more of sampling frequency, sampling quantity, and sampling type.

[0148] Optionally, the processing unit 902 is further configured to:

[0149] Determine that the state is abnormal; and issue an alarm, where the alarm is used to remind the user that the first battery is abnormal.

[0150] Optionally, the processing unit 902 is further configured to:

[0151] The attribute information stored in the first slave device is updated.

[0152] Please refer to FIG10 , which is a schematic diagram of the structure of another battery monitoring device provided in an embodiment of the present application. The device 100 includes:

[0153] The transceiver unit 1001 is configured to receive identification information of the first battery from the main control device;

[0154] The processing unit 1002 is configured to determine a control strategy for the first battery according to the identification information, wherein the control strategy is used to collect first battery data when the first battery is not installed on a powered device;

[0155] The transceiver unit 1001 is further configured to send a control strategy to the master control device.

[0156] Optionally, the processing unit 1002 is further configured to:

[0157] determining attribute information of the first battery according to the identification information;

[0158] The transceiver unit 1001 is further configured to send attribute information to the master control device.

[0159] Optionally, the attribute information includes at least one of model, type, manufacturer, production date, lifespan, capacity, internal resistance, and identification.

[0160] Optionally, the transceiver unit 1001 is further configured to:

[0161] receiving first battery data from a master control device;

[0162] The processing unit 1002 is further configured to adjust the control strategy according to the first battery data.

[0163] Optionally, the control strategy includes one or more of sampling frequency, sampling quantity, and sampling type.

[0164] FIG11 shows a possible logical structure diagram of a battery monitoring device 110 provided in an embodiment of the present application. The battery monitoring device 110 includes: a processor 1101, a communication interface 1102, a storage system 1103, and a bus 1104. The processor 1101, the communication interface 1102, and the storage system 1103 are interconnected via the bus 1104. In an embodiment of the present application, the processor 1101 is used to control and manage the actions of the battery monitoring device 110. For example, the processor 1101 is used to execute the steps performed by the first slave device, the master device, or the cloud server in the method embodiment of FIG3. The communication interface 1102 is used to support the battery monitoring device 110 in communication. The storage system 1103 is used to store the program code and data of the battery monitoring device 110.

[0165] The processor 1101 may be a central processing unit (CPU), a general-purpose processor (GPOR), a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA), or other programmable logic device (PLD), a transistor logic device (TLD), a hardware component, or any combination thereof. It may implement or execute the various exemplary logic blocks, modules, and circuits described in conjunction with the disclosure of this application. The processor 1101 may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and the like. The bus 1104 may be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus, for example. Buses may be classified as address buses, data buses, control buses, and the like. For ease of illustration, FIG. 11 shows only one thick line, but this does not imply that there is only one bus or only one type of bus.

[0166] The transceiver unit 802 in the device 80 is equivalent to the communication interface 1102 in the battery monitoring device 110 , and the processing unit 801 in the device 80 is equivalent to the processor 1101 in the battery monitoring device 110 .

[0167] The transceiver unit 901 in the device 90 is equivalent to the communication interface 1102 in the battery monitoring device 110 , and the processing unit 902 in the device 90 is equivalent to the processor 1101 in the battery monitoring device 110 .

[0168] The transceiver unit 1001 in the device 100 is equivalent to the communication interface 1102 in the battery monitoring device 110 , and the processing unit 1002 in the device 100 is equivalent to the processor 1101 in the battery monitoring device 110 .

[0169] The battery monitoring device 110 of this embodiment may correspond to the first slave device, master device, or cloud server in the method embodiment of FIG3 . The communication interface 1102 in the battery monitoring device 110 may implement the functions and / or various steps of the first slave device, master device, or cloud server in the method embodiment of FIG3 . For the sake of brevity, they are not further described here.

[0170] It should be understood that the division of units in the above device is merely a division of logical functions. In actual implementation, they can be fully or partially integrated into one physical entity, or they can be physically separated. Moreover, the units in the device can all be implemented in the form of software called through processing elements; or they can all be implemented in the form of hardware; or some units can be implemented in the form of software called through processing elements, and some units can be implemented in the form of hardware. For example, each unit can be a separately established processing element, or it can be integrated into a certain chip of the device. In addition, it can also be stored in the memory in the form of a program, called by a certain processing element of the device and perform the function of the unit. In addition, all or part of these units can be integrated together, or they can be implemented independently. The processing element described here can also be a processor, which can be an integrated circuit with signal processing capabilities. In the implementation process, each step of the above method or each unit above can be implemented by the integrated logic circuit of the hardware in the processor element or in the form of software called through the processing element.

[0171] In one example, the unit in any of the above devices can be one or more integrated circuits configured to implement the above method, such as one or more application specific integrated circuits (ASICs), or one or more digital singnal processors (DSPs), or one or more field programmable gate arrays (FPGAs), or a combination of at least two of these integrated circuit forms. For another example, when the unit in the device can be implemented in the form of a processing element scheduler, the processing element can be a general-purpose processor, such as a CPU or other processor that can call a program. For another example, these units can be integrated together and implemented in the form of a system-on-a-chip (SOC).

[0172] In another embodiment of the present application, a computer-readable storage medium is also provided, in which computer execution instructions are stored. When the processor of the device executes the computer execution instructions, the device executes the method executed by the first slave control device, master control device or cloud server in the above method embodiment.

[0173] In another embodiment of the present application, a computer program product is provided, comprising computer-executable instructions stored in a computer-readable storage medium. When a processor of a device executes the computer-executable instructions, the device performs the method performed by the first slave device, master device, or cloud server in the above method embodiment.

[0174] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0175] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0176] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0177] In addition, the functional units in the various embodiments of the present application may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0178] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

Claims

1. A battery monitoring system, characterized in that: including a first slave control device and a master control device; The first slave control device is configured to collect first battery data when the first battery is not installed in the powered device, and to send the first battery data to the master control device via a first wireless communication, wherein the first slave control device is detachably connected to the first battery, and the first wireless communication is a wireless communication link between the first slave control device and the master control device; The main control device is used to determine the status of the first battery according to the first battery data.

2. The system according to claim 1, wherein: The master control device is further configured to obtain attribute information of the first battery through the first wireless communication, determine a control strategy for the first battery according to the attribute information, and send the control strategy to the first slave control device; The first slave control device is further configured to collect the first battery data according to the control strategy.

3. The system according to claim 2, characterized in that The attribute information includes at least one of model, type, manufacturer, production date, lifespan, capacity, internal resistance, and identification.

4. The system according to claim 2 or 3, characterized in that The first slave control device is further configured to send the pre-stored attribute information to the master control device via the first wireless communication; or The first slave control device is further configured to obtain the attribute information through an input interface, and send the attribute information to the master control device through the first wireless communication; or The main control device is further configured to obtain identification information of the first battery through the first wireless communication, and obtain the attribute information corresponding to the identification information from a cloud server.

5. The system according to claim 1, wherein: The master control device is further configured to obtain identification information of the first battery through the first wireless communication, obtain a control policy corresponding to the identification information from a cloud server, and send the control policy to the first slave control device; The first slave control device is further configured to collect the first battery data according to the control strategy.

6. The system according to any one of claims 2 to 5, characterized in that: The main control device is further configured to adjust the control strategy according to the state.

7. The system according to claim 5, characterized in that The main control device is further used to send the first battery data to the cloud server and obtain the adjusted control strategy from the cloud server.

8. The system according to any one of claims 2 to 7, characterized in that: The control strategy includes one or more of sampling frequency, sampling quantity, and sampling type.

9. The system according to any one of claims 1 to 8, characterized in that: The main control device is further configured to, when determining that the state is abnormal, issue an alarm, wherein the alarm is configured to remind the user that the first battery is abnormal.

10. The system according to any one of claims 2 to 4, characterized in that: The master control device is further configured to update the attribute information stored in the first slave control device.

11. The system according to any one of claims 1 to 10, characterized in that: The system further includes a second slave control device, the second slave control device being configured to monitor second battery data when the second battery is not installed in the powered device, and to transmit the second battery data to the master control device via a second wireless communication, wherein the second slave control device is detachably connected to the second battery, and the second wireless communication is a wireless communication link between the second slave control device and the master control device; The second slave device is further configured to, when the first wireless communication is unavailable, send the first battery data to the master device via the second wireless communication.

12. A battery monitoring method, characterized in that: include: The first slave control device collects first battery data when the first battery is not installed in the powered device, wherein the first slave control device is detachably connected to the first battery; The first slave device sends the first battery data to the master device through first wireless communication, where the first wireless communication is a wireless communication link between the first slave device and the master device.

13. The method according to claim 12, characterized in that Before the first slave control device collects the first battery data of the first battery, the method further includes: The first slave control device sends the attribute information of the first battery to the master control device through the first wireless communication; The first slave device receives a control strategy from the master device, where the control strategy is determined by the master device according to the attribute information; The first slave control device collecting the first battery data of the first battery includes: The first slave control device collects the first battery data according to the control strategy.

14. The method according to claim 13, characterized in that The attribute information includes at least one of model, type, manufacturer, production date, lifespan, capacity, internal resistance, and identification.

15. The method according to claim 13 or 14, characterized in that The first slave device sending the attribute information of the first battery to the master device through the first wireless communication includes: The first slave device sends the pre-stored attribute information to the master device via the first wireless communication; or The first slave control device obtains the attribute information through an input interface; The first slave device sends the attribute information to the master device through the first wireless communication.

16. The method according to any one of claims 13 to 15, characterized in that: The control strategy includes one or more of sampling frequency, sampling quantity, and sampling type.

17. The method according to any one of claims 13 to 16, characterized in that: The method further comprises: The first slave device receives update information from the master device; The first slave control device updates the stored attribute information according to the update information.

18. The method according to any one of claims 12 to 17, characterized in that: The method further comprises: When the first wireless communication is unavailable, the first slave device sends the first battery data to the master device through the second wireless communication, wherein the second wireless communication is a wireless communication link between the second slave device and the master device, and the second slave device is used to monitor the second battery data when the second battery is not installed on the powered device, and send the second battery data to the master device through the second wireless communication.

19. A battery monitoring method, characterized in that: include: The master device obtains first battery data from the first slave device through first wireless communication, wherein the first wireless communication is a wireless communication link between the first slave device and the master device, and the first battery data is monitoring data when the first battery is not installed on the powered device; The main control device determines the state of the first battery according to the first battery data.

20. The method according to claim 19, wherein Before the master device receives the first battery data from the first slave device, the method further includes: The main control device obtains the attribute information of the first battery through the first wireless communication; The main control device determines a control strategy for the first battery according to the attribute information; The master control device sends the control strategy to the first slave control device.

21. The method according to claim 20, characterized in that The attribute information includes at least one of model, type, manufacturer, production date, lifespan, capacity, internal resistance, and identification.

22. The method according to any one of claims 20-21, characterized in that The master device acquiring the attribute information of the first battery from the first slave device through the first wireless communication includes: The master device receives the attribute information from the first slave device through the first wireless communication; or The master control device receives identification information of the first battery from the first slave control device through the first wireless communication; The main control device obtains the attribute information from the cloud server according to the identification information.

23. The method according to claim 19, wherein Before the master control device obtains the first battery data from the first slave control device, the method further includes: The master control device receives identification information of the first battery from the first slave control device through the first wireless communication; The master control device obtains the control policy corresponding to the identification information from the cloud server; The master control device sends the control strategy to the first slave control device.

24. The method according to any one of claims 20 to 23, characterized in that The method further comprises: The main control device adjusts the control strategy according to the state.

25. The method according to any one of claims 20 to 24, characterized in that The control strategy includes one or more of sampling frequency, sampling quantity, and sampling type.

26. The method according to any one of claims 19 to 25, characterized in that The method further comprises: The main control device determines that the state is abnormal; The main control device issues an alarm, where the alarm is used to remind the user that an abnormality has occurred in the first battery.

27. The method according to any one of claims 20 to 22, characterized in that The method further comprises: The master control device updates the attribute information stored in the first slave control device.

28. A battery monitoring method, characterized in that: include: The cloud server receives identification information of the first battery from the main control device; The cloud server determines a control strategy for the first battery according to the identification information, where the control strategy is used to collect first battery data when the first battery is not installed on the powered device; The cloud server sends the control strategy to the master control device.

29. The method according to claim 28, characterized in that The method further comprises: The cloud server determines attribute information of the first battery according to the identification information; The cloud server sends the attribute information to the master control device.

30. The method according to claim 29, wherein The attribute information includes at least one of model, type, manufacturer, production date, lifespan, capacity, internal resistance, and identification.

31. The method according to claim 28, wherein The method further comprises: The cloud server receives the first battery data from the main control device; The cloud server adjusts the control strategy according to the first battery data.

32. The method according to any one of claims 28 to 31, characterized in that The control strategy includes one or more of sampling frequency, sampling quantity, and sampling type.

33. A battery monitoring device, characterized in that: include: a processor coupled to the memory, The processor is configured to execute instructions stored in the memory, so that the battery monitoring device performs the method according to any one of claims 12 to 18.

34. A battery monitoring device, characterized in that: include: a processor coupled to the memory, The processor is configured to execute instructions stored in the memory, so that the battery monitoring device performs the method according to any one of claims 19 to 27.

35. A battery monitoring device, characterized in that: include: a processor coupled to the memory, The processor is configured to execute instructions stored in the memory, so that the battery monitoring device performs the method according to any one of claims 28 to 32.

36. A computer-readable storage medium, characterized in that The computer-readable storage medium stores instructions, and when the instructions are executed by a processor, the method according to any one of claims 12 to 32 is implemented.

37. A computer program product, characterized in that The computer program product includes computer program code, and is characterized in that when the computer program code is run on a computer, the method according to any one of claims 12 to 32 is implemented.

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