Battery theft prevention method, system, device, and computer-readable storage medium

Abstract

A battery anti-theft method, system, device and computer readable storage medium. The method comprises: when the power supply system is in a non-repair mode, if a hard-wire anti-theft wake-up signal sent by an anti-theft wake-up circuit is received, a master module and a slave module of a battery management system are sequentially awakened; the master module receives voltage sampling values of each single battery reported by the slave module, and determines the number of single batteries actually existing in the power supply system according to the voltage sampling values of each single battery; when the number of single batteries actually existing in the power supply system is less than a threshold value, an anti-theft reminding strategy is executed. Through the present application, on the one hand, only a low-voltage wire harness loop is added, and the required cost is low; on the other hand, since the anti-theft wake-up circuit is defined to trigger an anti-theft wake-up signal when detecting that the low-voltage wire harness loop is disconnected, the master module and the slave module of the battery management system can be awakened in time, so that battery anti-theft detection is performed, and the real-time performance is higher.

Description

Technical Field

[0001] This application relates to the field of battery management technology, specifically to a battery anti-theft method, system, device, and computer-readable storage medium. Background Technology

[0002] As the most expensive component of an electric vehicle, the anti-theft performance of the battery system is a key concern for both manufacturers and consumers. Therefore, some manufacturers have explored anti-theft measures for battery systems. For example, they have installed GPS positioning modules inside the battery compartment to report the battery's geographical location in real time, allowing comparison with the vehicle's location to detect whether the battery has been stolen. Alternatively, they have periodically activated the battery management system, which then collects battery information and uses this information to determine if the battery has been stolen.

[0003] Among these methods, using geographical location comparison requires an additional GPS positioning module, increasing hardware costs; while using a timed wake-up battery management system cannot detect battery theft events in a timely manner, resulting in poor real-time performance. Summary of the Invention

[0004] This application provides a battery anti-theft method, system, device, and computer-readable storage medium, which can solve the technical problems of high hardware cost or poor real-time performance required to implement battery anti-theft detection in the prior art.

[0005] In a first aspect, embodiments of this application provide a battery anti-theft method, the battery anti-theft method comprising:

[0006] When the power supply system is in non-maintenance mode, if an anti-theft wake-up signal is received from the anti-theft wake-up circuit, the main control module of the battery management system will be woken up. The anti-theft wake-up circuit includes a low-voltage harness circuit, which is used to connect the various battery modules in the power supply system in series. The anti-theft wake-up circuit is defined as triggering the anti-theft wake-up signal when the low-voltage harness circuit is detected to be disconnected.

[0007] After the main control module is woken up, it wakes up the slave control module of the battery management system.

[0008] The main control module receives the voltage sampling values ​​of each individual battery reported by the slave control module, and determines the actual number of individual batteries in the power supply system based on the voltage sampling values ​​of each individual battery.

[0009] When the actual number of individual batteries in the power supply system is less than a threshold, the main control module executes an anti-theft alert strategy.

[0010] In conjunction with the first aspect, in one embodiment, the step of determining the actual number of individual batteries in the power supply system based on the voltage sampling values ​​of each individual battery includes:

[0011] For each individual cell, the voltage sample value is checked to see if it is within a preset voltage range.

[0012] If the voltage is within the preset range, the number of individual batteries actually present in the power supply system will be increased by one.

[0013] By analogy, the actual number of individual batteries in the power supply system can be obtained.

[0014] In conjunction with the first aspect, in one implementation, the step of the main control module executing the anti-theft alert strategy includes:

[0015] The main control module sends a first alarm command to the vehicle's instrument panel so that an alarm icon corresponding to the battery loss event can be displayed on the vehicle's instrument panel;

[0016] And / or, the main control module sends a second alarm command to the buzzer so that the buzzer sounds.

[0017] In conjunction with the first aspect, in one implementation, the step of the main control module executing the anti-theft alert strategy further includes:

[0018] The main control module sends a third alarm command to the remote information processor;

[0019] After receiving the third alarm instruction, the remote information processor sends a battery missing alarm to the cloud platform, so that the cloud platform can send a battery missing notification to the client.

[0020] In conjunction with the first aspect, in one embodiment, after the step of the main control module receiving the voltage sampling values ​​of each individual battery reported by the slave control module and determining the actual number of individual batteries in the power supply system based on the voltage sampling values ​​of each individual battery, the method further includes:

[0021] When the actual number of individual batteries in the power supply system equals the threshold, the main control module sends a fourth alarm command to the vehicle dashboard to display an alarm icon corresponding to the anti-theft wake-up circuit fault on the vehicle dashboard.

[0022] Secondly, embodiments of this application provide a battery anti-theft system, which includes an anti-theft wake-up circuit, an anti-theft wake-up signal input interface, a main control module of a battery management system, and a slave control module. The anti-theft wake-up circuit includes a low-voltage wiring harness circuit, which is used to connect various battery modules in the power supply system in series. The anti-theft wake-up circuit is defined to trigger an anti-theft wake-up signal when the low-voltage wiring harness circuit is detected to be disconnected, wherein:

[0023] The anti-theft wake-up signal input interface is used to wake up the main control module of the battery management system when the power supply system is in non-maintenance mode and receives an anti-theft wake-up signal sent by the anti-theft wake-up circuit.

[0024] The master control module is used to wake up the slave control modules of the battery management system after being woken up.

[0025] The slave control module is used to sample the voltage of each individual battery cell, obtain the voltage sample value of each individual battery cell, and report it to the master control module.

[0026] The main control module receives the voltage sampling values ​​of each individual battery reported by the slave control module, and determines the actual number of individual batteries in the power supply system based on the voltage sampling values ​​of each individual battery. When the actual number of individual batteries in the power supply system is less than a threshold, an anti-theft alert strategy is executed.

[0027] In conjunction with the second aspect, in one implementation, the main control module is used for:

[0028] For each individual cell, the voltage sample value is checked to see if it is within a preset voltage range.

[0029] If the voltage is within the preset range, the number of individual batteries actually present in the power supply system will be increased by one.

[0030] By analogy, the actual number of individual batteries in the power supply system can be obtained.

[0031] In conjunction with the second aspect, in one implementation, the main control module is used for:

[0032] Send the first alarm command to the vehicle's dashboard to display the alarm icon corresponding to the battery loss event on the vehicle's dashboard;

[0033] And / or, send a second alarm command to the buzzer so that the buzzer sounds.

[0034] In conjunction with the second aspect, in one embodiment, the battery anti-theft system further includes a remote information processor, wherein:

[0035] The main control module is used to send a third alarm command to the remote information processor;

[0036] The remote information processor is used to send a battery missing alarm to the cloud platform after receiving a third alarm instruction, so that the cloud platform can send a battery missing notification to the client.

[0037] In conjunction with the second aspect, in one implementation, the main control module is further configured to:

[0038] When the actual number of individual batteries in the power supply system equals the threshold, a fourth alarm command is sent to the vehicle's dashboard to display an alarm icon corresponding to the anti-theft wake-up circuit failure.

[0039] The beneficial effects of the technical solutions provided in this application include:

[0040] In this embodiment, when the power supply system is in non-maintenance mode, if an anti-theft wake-up signal is received from the anti-theft wake-up circuit, the main control module of the battery management system is awakened. The anti-theft wake-up circuit includes a low-voltage harness circuit, which is used to connect each battery module in the power supply system in series. The anti-theft wake-up circuit is defined to trigger the anti-theft wake-up signal when the low-voltage harness circuit is detected to be disconnected. After the main control module is awakened, it awakens the slave control module of the battery management system. The main control module receives the voltage sampling values ​​of each individual battery reported by the slave control module and determines the actual number of individual batteries in the power supply system based on the voltage sampling values ​​of each individual battery. When the actual number of individual batteries in the power supply system is less than a threshold, the main control module executes an anti-theft reminder strategy. Through this embodiment, on the one hand, only a low-voltage harness circuit is added, resulting in lower costs; on the other hand, since the anti-theft wake-up circuit is defined to trigger the anti-theft wake-up signal when the low-voltage harness circuit is detected to be disconnected, the main control module and slave control module of the battery management system can be awakened in a timely manner, thereby performing battery anti-theft detection with higher real-time performance. Attached Figure Description

[0041] Figure 1 This is a flowchart illustrating an embodiment of the battery anti-theft method of this application;

[0042] Figure 2 This is a schematic diagram of the anti-theft wake-up circuit in one embodiment of the battery anti-theft method of this application;

[0043] Figure 3 This is a schematic diagram of the architecture of an embodiment of the battery anti-theft system of this application. Detailed Implementation

[0044] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present application.

[0045] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0046] In a first aspect, embodiments of this application provide a battery anti-theft method.

[0047] In one embodiment, reference is made to Figure 1 , Figure 1 This is a schematic flowchart of an embodiment of the battery anti-theft method of this application. Figure 1 As shown, battery anti-theft methods include:

[0048] Step S10: When the power supply system is in non-maintenance mode, if the anti-theft wake-up signal sent by the anti-theft wake-up circuit is received, the main control module of the battery management system is woken up. The anti-theft wake-up circuit includes a low-voltage harness circuit, which is used to connect each battery module in the power supply system in series. The anti-theft wake-up circuit is defined as triggering the anti-theft wake-up signal when the low-voltage harness circuit is detected to be disconnected.

[0049] In this embodiment, refer to Figure 2 , Figure 2 This is a schematic diagram of the anti-theft wake-up circuit in one embodiment of the battery anti-theft method of this application. Figure 2 As shown, the power supply system includes multiple battery modules, denoted as battery module 1 to battery module N. Battery modules 1 to N can be connected in series; or the N battery modules can be divided into multiple branches, and each branch can be connected in parallel. There is no restriction on the connection method between battery modules 1 to N.

[0050] Continue to refer to Figure 2 The low-voltage wiring harness, connected in series with battery modules 1 to N, forms the low-voltage wiring harness loop for the anti-theft wake-up circuit. A switch detection circuit detects whether this loop is open. If an open loop is detected, an anti-theft wake-up signal is triggered to wake up the main control module of the battery management system. Alternatively, the anti-theft wake-up signal can be sent to an anti-theft wake-up signal input interface, which then wakes up the main control module of the battery management system upon receiving the signal. The switch detection circuit includes a relay that takes the voltage or current of the low-voltage wiring harness loop as input. When the input is less than a preset value, the low-voltage wiring harness loop is considered open, thus establishing a connection between the vehicle's low-voltage battery and the anti-theft wake-up signal input interface. This allows the vehicle's low-voltage battery to send a 24V low-voltage signal (anti-theft wake-up signal) to the input interface.

[0051] It should be noted that the above is only a schematic illustration of a switch detection circuit and does not constitute a limitation on the switch detection circuit. Any circuit with the following functions can be used as a switch detection circuit:

[0052] The system detects the open and closed states of the low-voltage wiring harness circuit, and triggers an anti-theft wake-up signal when the low-voltage wiring harness circuit is detected to be open.

[0053] Upon receiving the anti-theft wake-up signal from the anti-theft wake-up circuit, the main control module of the battery management system is activated.

[0054] It's easy to understand that a disconnection in the low-voltage wiring harness circuit triggers an anti-theft wake-up signal. Furthermore, power supply system maintenance often involves disassembling the battery module or individual cells within it, which also disconnects the low-voltage wiring harness circuit. Therefore, to avoid false alarms, two states are defined for the power supply system: maintenance mode and non-maintenance mode, and the system's state is set according to the actual scenario. The battery anti-theft method provided in this embodiment is only executed when the power supply system is in non-maintenance mode.

[0055] Step S20: After the main control module is woken up, it wakes up the slave control module of the battery management system.

[0056] Step S30: The main control module receives the voltage sampling values ​​of each individual battery reported by the slave control module, and determines the actual number of individual batteries in the power supply system based on the voltage sampling values ​​of each individual battery.

[0057] In this embodiment, after the main control module is woken up, it wakes up the slave control modules of the battery management system. Once woken up, the slave control modules collect battery information. For example, if the power supply system includes 5 battery modules, and each battery module includes 10 individual cells, then the slave control modules sample the voltage values ​​of 50 individual cells, obtain the voltage sample values ​​of 50 individual cells, and report them to the main control module. It should be noted that there can be multiple slave control modules.

[0058] It is easy to understand that if any single battery cell is missing, the voltage sample value obtained by the slave control module from its battery information acquisition will inevitably be an abnormal value. Based on this principle, the master control module can determine the actual number of single batteries in the power supply system based on the voltage sample values ​​of each single battery cell.

[0059] Furthermore, in one embodiment, the step of determining the actual number of individual batteries in the power supply system based on the voltage sampling values ​​of each individual battery includes:

[0060] For each individual battery cell, the voltage sample value is checked to see if it is within a preset voltage range. If it is within the preset voltage range, the number of individual batteries actually existing in the power supply system is incremented by one. This process is repeated to obtain the actual number of individual batteries existing in the power supply system.

[0061] In this embodiment, it is assumed that there are 50 voltage sampling values ​​of individual cells, i.e., 50 voltage sampling values. For each voltage sampling value, it is detected whether it is within the preset voltage range. For each voltage sampling value that is within the preset voltage range, the number of individual cells actually existing in the power supply system is incremented by one. The final number of individual cells actually existing in the power supply system is the total number of voltage sampling values ​​that are within the preset voltage range.

[0062] Step S40: When the actual number of individual batteries in the power supply system is less than the threshold, the main control module executes the anti-theft reminder strategy.

[0063] In this embodiment, when the actual number of individual batteries in the power supply system is less than the threshold, it indicates that an individual battery is missing. The main control module then executes an anti-theft alert strategy to remind relevant personnel of the missing battery event.

[0064] It should be noted that, assuming a battery theft actually occurs, there is a certain amount of time required from the disconnection of the low-voltage wiring harness circuit to the removal of the battery, typically 5 minutes. Therefore, steps S30 to S40 can be repeated for 10 minutes. As long as the number of individual batteries actually present in the power supply system is less than a threshold within this duration, the main control module will execute the anti-theft alert strategy.

[0065] Furthermore, in one embodiment, the step of the main control module executing the anti-theft alert strategy includes:

[0066] The main control module sends a first alarm command to the vehicle's instrument panel so that an alarm icon corresponding to the battery loss event can be displayed on the vehicle's instrument panel;

[0067] And / or, the main control module sends a second alarm command to the buzzer so that the buzzer sounds.

[0068] In this embodiment, the main control module sends a first alarm command to the vehicle's dashboard. Subsequently, when the vehicle is powered on, an alarm icon corresponding to the battery loss event can be displayed on the vehicle's dashboard to inform the driver.

[0069] And / or, the main control module sends a second alarm command to the buzzer to activate the buzzer and alert relevant personnel.

[0070] Furthermore, in one embodiment, the step of the main control module executing the anti-theft alert strategy further includes:

[0071] The main control module sends a third alarm command to the remote information processor; after receiving the third alarm command, the remote information processor sends a battery missing alarm to the cloud platform, so that the cloud platform can send a battery missing notification to the client.

[0072] In this embodiment, the main control module sends a third alarm command to the remote information processor. The remote information processor communicates with the cloud platform to send a battery loss alarm to the cloud platform, so that the cloud platform can send a battery loss notification to the client. The client refers to the client corresponding to the vehicle to which the power supply system belongs. The client can be an email client, instant messaging software client, vehicle management software client, etc.

[0073] In this embodiment, when the power supply system is in non-maintenance mode, if an anti-theft wake-up signal is received from the anti-theft wake-up circuit, the main control module of the battery management system is awakened. The anti-theft wake-up circuit includes a low-voltage harness circuit, which is used to connect each battery module in the power supply system in series. The anti-theft wake-up circuit is defined to trigger the anti-theft wake-up signal when the low-voltage harness circuit is detected to be disconnected. After the main control module is awakened, it awakens the slave control module of the battery management system. The main control module receives the voltage sampling values ​​of each individual battery reported by the slave control module and determines the actual number of individual batteries in the power supply system based on the voltage sampling values ​​of each individual battery. When the actual number of individual batteries in the power supply system is less than a threshold, the main control module executes an anti-theft reminder strategy. Through this embodiment, on the one hand, only a low-voltage harness circuit is added, resulting in lower costs; on the other hand, since the anti-theft wake-up circuit is defined to trigger the anti-theft wake-up signal when the low-voltage harness circuit is detected to be disconnected, the main control module and slave control module of the battery management system can be awakened in a timely manner, thereby performing battery anti-theft detection with higher real-time performance.

[0074] Furthermore, in one embodiment, after step S40, the method further includes:

[0075] When the actual number of individual batteries in the power supply system equals the threshold, the main control module sends a fourth alarm command to the vehicle dashboard to display an alarm icon corresponding to the anti-theft wake-up circuit failure on the vehicle dashboard.

[0076] In this embodiment, when the actual number of individual batteries in the power supply system equals the threshold, it indicates that there are no missing individual batteries, which is equivalent to a false triggering of the anti-theft wake-up signal, indicating a fault in the anti-theft wake-up circuit. Therefore, the main control module sends a fourth alarm command to the vehicle's dashboard, so that an alarm icon corresponding to the anti-theft wake-up circuit fault is displayed on the dashboard after the vehicle is powered on, allowing relevant personnel to repair the anti-theft wake-up circuit.

[0077] Secondly, embodiments of this application also provide a battery anti-theft system.

[0078] In one embodiment, reference is made to Figure 3 , Figure 3 This is a schematic diagram of the architecture of an embodiment of the battery anti-theft system of this application. Figure 3As shown, the battery anti-theft system includes an anti-theft wake-up circuit 10, an anti-theft wake-up signal input interface 20, a main control module 30 of the battery management system, and a slave control module 40. The anti-theft wake-up circuit 10 includes a low-voltage wiring harness circuit 110, which is used to connect various battery modules in the power supply system in series. The anti-theft wake-up circuit 10 is defined to trigger an anti-theft wake-up signal 120 when the low-voltage wiring harness circuit 110 is detected to be disconnected.

[0079] The anti-theft wake-up signal input interface 20 is used to wake up the main control module 30 of the battery management system when the power supply system is in non-maintenance mode and receives the anti-theft wake-up signal 120 sent by the anti-theft wake-up circuit 10.

[0080] The main control module 30 is used to wake up the slave control module 40 of the battery management system after being woken up;

[0081] The slave control module 40 is used to sample the voltage of each individual battery cell, obtain the voltage sample value of each individual battery cell, and report it to the master control module 30.

[0082] The main control module 30 is used to receive the voltage sampling values ​​of each individual battery reported by the slave control module 40, and determine the actual number of individual batteries in the power supply system based on the voltage sampling values ​​of each individual battery. When the actual number of individual batteries in the power supply system is less than the threshold, an anti-theft reminder strategy is executed.

[0083] Furthermore, in one embodiment, the main control module 30 is used for:

[0084] For each individual cell, the voltage sample value is checked to see if it is within a preset voltage range.

[0085] If the voltage is within the preset range, the number of individual batteries actually present in the power supply system will be increased by one.

[0086] By analogy, the actual number of individual batteries in the power supply system can be obtained.

[0087] Furthermore, in one embodiment, the main control module 30 is used for:

[0088] Send the first alarm command to the vehicle's dashboard to display the alarm icon corresponding to the battery loss event on the vehicle's dashboard;

[0089] And / or, send a second alarm command to the buzzer so that the buzzer sounds.

[0090] Furthermore, in one embodiment, the battery anti-theft system further includes a remote information processor, wherein:

[0091] The main control module 30 is used to send a third alarm command to the remote information processor;

[0092] The remote information processor is used to send a battery missing alarm to the cloud platform after receiving a third alarm instruction, so that the cloud platform can send a battery missing notification to the client.

[0093] Furthermore, in one embodiment, the main control module 30 is also used for:

[0094] When the actual number of individual batteries in the power supply system equals the threshold, a fourth alarm command is sent to the vehicle's dashboard to display an alarm icon corresponding to the anti-theft wake-up circuit failure.

[0095] The functions of each module in the above-mentioned battery anti-theft device correspond to the steps in the above-mentioned battery anti-theft method embodiment, and their functions and implementation processes will not be described in detail here.

[0096] It should be noted that the sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0097] The terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings of this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to such process, method, product, or apparatus. The terms "first," "second," and "third," etc., are used to distinguish different objects, etc., and do not indicate a sequence, nor do they limit "first," "second," and "third" to different types.

[0098] In the description of the embodiments of this application, terms such as "exemplary," "for example," or "for instance" are used to indicate examples, illustrations, or explanations. Any embodiment or design described as "exemplary," "for example," or "for instance" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of terms such as "exemplary," "for example," or "for instance" is intended to present the relevant concepts in a concrete manner.

[0099] In the description of the embodiments of this application, unless otherwise stated, " / " means "or". For example, A / B can mean A or B. The "and / or" in the text is merely a description of the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist simultaneously, and B exists alone. In addition, in the description of the embodiments of this application, "multiple" means two or more.

[0100] In some processes described in the embodiments of this application, multiple operations or steps are included in a specific order. However, it should be understood that these operations or steps may not be executed in the order they appear in the embodiments of this application, or they may be executed in parallel. The sequence number of the operation is only used to distinguish different operations, and the sequence number itself does not represent any execution order. In addition, these processes may include more or fewer operations, and these operations or steps may be executed sequentially or in parallel, and these operations or steps may be combined.

[0101] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) as described above, and includes several instructions to cause a terminal device to execute the methods described in the various embodiments of this application.

[0102] The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A battery anti-theft method, characterized in that, The battery anti-theft method includes: When the power supply system is in non-maintenance mode, if an anti-theft wake-up signal is received from the anti-theft wake-up circuit, the main control module of the battery management system will be woken up. The anti-theft wake-up circuit includes a low-voltage harness circuit, which is used to connect the various battery modules in the power supply system in series. The anti-theft wake-up circuit is defined as triggering the anti-theft wake-up signal when the low-voltage harness circuit is detected to be disconnected. After the main control module is woken up, it wakes up the slave control module of the battery management system. The main control module receives the voltage sampling values ​​of each individual battery reported by the slave control module, and determines the actual number of individual batteries in the power supply system based on the voltage sampling values ​​of each individual battery. When the actual number of individual batteries in the power supply system is less than a threshold, the main control module executes an anti-theft alert strategy.

2. The battery anti-theft method as described in claim 1, characterized in that, The step of determining the actual number of individual cells in the power supply system based on the voltage sampling values ​​of each individual cell includes: For each individual cell, the voltage sample value is checked to see if it is within a preset voltage range. If the voltage is within the preset range, the number of individual batteries actually present in the power supply system will be increased by one. By analogy, the actual number of individual batteries in the power supply system can be obtained.

3. The battery anti-theft method as described in claim 1, characterized in that, The steps by which the main control module executes the anti-theft alert strategy include: The main control module sends a first alarm command to the vehicle's instrument panel so that an alarm icon corresponding to the battery loss event can be displayed on the vehicle's instrument panel; And / or, the main control module sends a second alarm command to the buzzer so that the buzzer sounds.

4. The battery anti-theft method as described in claim 3, characterized in that, The steps for the main control module to execute the anti-theft alert strategy also include: The main control module sends a third alarm command to the remote information processor; After receiving the third alarm instruction, the remote information processor sends a battery missing alarm to the cloud platform, so that the cloud platform can send a battery missing notification to the client.

5. The battery anti-theft method according to any one of claims 1 to 4, characterized in that, After the main control module receives the voltage sampling values ​​of each individual battery reported by the slave control module and determines the actual number of individual batteries in the power supply system based on the voltage sampling values ​​of each individual battery, the method further includes: When the actual number of individual batteries in the power supply system equals the threshold, the main control module sends a fourth alarm command to the vehicle dashboard to display an alarm icon corresponding to the anti-theft wake-up circuit failure on the vehicle dashboard.

6. A battery anti-theft system, characterized in that, The battery anti-theft system includes an anti-theft wake-up circuit, an anti-theft wake-up signal input interface, a main control module of the battery management system, and a slave control module. The anti-theft wake-up circuit includes a low-voltage wiring harness circuit, which is used to connect the various battery modules in the power supply system in series. The anti-theft wake-up circuit is defined to trigger an anti-theft wake-up signal when the low-voltage wiring harness circuit is detected to be disconnected. The anti-theft wake-up signal input interface is used to wake up the main control module of the battery management system when the power supply system is in non-maintenance mode and receives an anti-theft wake-up signal sent by the anti-theft wake-up circuit. The master control module is used to wake up the slave control modules of the battery management system after being woken up. The slave control module is used to sample the voltage of each individual battery cell, obtain the voltage sample value of each individual battery cell, and report it to the master control module. The main control module receives the voltage sampling values ​​of each individual battery reported by the slave control module, and determines the actual number of individual batteries in the power supply system based on the voltage sampling values ​​of each individual battery. When the actual number of individual batteries in the power supply system is less than a threshold, an anti-theft alert strategy is executed.

7. The battery anti-theft system as described in claim 6, characterized in that, The main control module is used for: For each individual cell, the voltage sample value is checked to see if it is within a preset voltage range. If the voltage is within the preset range, the number of individual batteries actually present in the power supply system will be increased by one. By analogy, the actual number of individual batteries in the power supply system can be obtained.

8. The battery anti-theft system as described in claim 6, characterized in that, The main control module is also used for: Send the first alarm command to the vehicle's dashboard to display the alarm icon corresponding to the battery loss event on the vehicle's dashboard; And / or, send a second alarm command to the buzzer so that the buzzer sounds.

9. The battery anti-theft system as described in claim 8, characterized in that, The battery anti-theft system also includes a remote information processor, wherein: The main control module is used to send a third alarm command to the remote information processor; The remote information processor is used to send a battery missing alarm to the cloud platform after receiving a third alarm instruction, so that the cloud platform can send a battery missing notification to the client.

10. The battery anti-theft system as described in any one of claims 6 to 9, characterized in that, The main control module is also used for: When the actual number of individual batteries in the power supply system equals the threshold, a fourth alarm command is sent to the vehicle's dashboard to display an alarm icon corresponding to the anti-theft wake-up circuit failure.

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