Fire protection method and device of battery energy storage system, electronic equipment and storage medium

Abstract

The invention provides a fire protection method and device for a battery energy storage system, electronic equipment and a storage medium, relates to the technical field of battery energy storage, and is at least used for solving the technical problem of safety risk caused by thermal runaway spreading of a thermal runaway battery of the battery energy storage system in the related technology. The method is applied to the mobile device, and comprises the following steps: receiving a fire-fighting early warning instruction for a target battery module in the battery energy storage system; and in response to the fire-fighting early warning instruction, moving to a designated place indicated by the fire-fighting early warning instruction, and executing fire-fighting operation on the target battery module.

Description

Technical Field

[0001] The present application relates to the field of battery energy storage technology, and in particular to a fire fighting method, device, electronic equipment and storage medium of a battery energy storage system. Background Art

[0002] With the rapid development of renewable energy and the continuous upgrading of power systems, battery energy storage systems have become an important part of the renewable energy field and power systems. Battery energy storage systems can not only balance the instability of renewable energy, but also improve the reliability and flexibility of power systems. However, battery energy storage systems are also accompanied by certain risks during operation. Under abnormal conditions such as overcharging, over-discharging, short circuit, high temperature, and mechanical damage, the chemical reaction inside the battery may get out of control, causing the internal temperature of the battery to rise and may trigger thermal runaway. During the battery thermal runaway process, the materials inside the battery will quickly decompose and generate a large amount of heat and flammable gases, causing a fire.

[0003] In the related technology, for the fire-fighting treatment method of the thermal runaway battery cluster of the battery energy storage system, when the fire-fighting system of the battery energy storage system cannot control the fire caused by the thermal runaway battery, the firefighters need to intervene in time. When the thermal runaway battery cluster is in a medium-high voltage cascade system under high-voltage suspension, the thermal runaway battery cluster is prone to re-ignition, flash explosion and other problems, resulting in the spread of thermal runaway, and there is a certain risk to the personal safety of the firefighters, and the equipment and property losses caused. Therefore, how to effectively suppress the spread of thermal runaway and reduce the risk of thermal runaway battery clusters is a technical problem that needs to be solved urgently. Summary of the invention

[0004] The embodiments of the present application provide a fire fighting method, device, electronic device and storage medium for a battery energy storage system, which are at least used to solve the technical problem in the related art that a thermal runaway battery of a battery energy storage system may experience thermal runaway and spread, leading to safety risks.

[0005] In a first aspect, a fire fighting method of a battery energy storage system is provided, which is applied to a mobile device, and the method comprises:

[0006] Receiving a fire warning instruction for a target battery module in the battery energy storage system;

[0007] In response to the fire warning instruction, the device moves to a designated location indicated by the fire warning instruction and performs a fire fighting operation on a target battery module.

[0008] Based on the fire fighting method of the battery energy storage system provided in the embodiment of the present application, the mobile device can accurately locate the position of the target battery module where thermal runaway occurs based on the fire warning instruction, ensuring the accuracy of the fire fighting measures of the mobile device. In addition, the mobile device can also quickly move to the designated location indicated by the fire warning instruction based on the fire warning instruction, and perform fire fighting operations on the target battery module, thereby effectively suppressing the spread of thermal runaway of the target battery module and reducing the equipment and property losses caused by thermal runaway of the target battery module.

[0009] In some embodiments, performing a firefighting operation on a target battery module includes: performing a firefighting operation on the target battery module based on a thermal runaway condition of the target battery module; the thermal runaway condition is used to characterize whether the thermal runaway of the target battery module has been effectively controlled.

[0010] In some embodiments, the fire warning instruction includes indication information for indicating a thermal runaway situation.

[0011] In some embodiments, based on the thermal runaway condition of the target battery module, firefighting operations are performed on the target battery module, including: when the thermal runaway condition indicates that the thermal runaway of the target battery module is effectively controlled, periodically performing safety checks on the target battery module, and when the target battery module fails the safety check, performing firefighting operations on the target battery module until the target battery module passes the safety check.

[0012] In some embodiments, performing safety testing on the target battery module includes: performing infrared temperature testing on the cabinet where the target battery module is located, and / or performing insulation testing on the outer surface of the cabinet where the target battery module is located.

[0013] In some embodiments, the target battery module fails the safety test, including at least one of the following: the temperature of the cabinet where the target battery module is located is greater than a preset temperature threshold; the outer surface of the cabinet where the target battery module is located is not insulated.

[0014] In some embodiments, the method further includes: when the target battery module passes the safety test, sending indication information indicating that the target battery module passes the safety test to a management system in the battery energy storage system.

[0015] In some embodiments, based on the thermal runaway condition of the target battery module, a firefighting operation is performed on the target battery module, including: when the thermal runaway condition indicates that the thermal runaway of the target battery module is not effectively controlled, attempting to establish a communication connection with the management system of the target battery module; and performing a firefighting operation on the target battery module based on a firefighting strategy corresponding to the result of establishing the communication connection.

[0016] In some embodiments, a firefighting operation is performed on the target battery module based on a firefighting strategy corresponding to the result of establishing the communication connection, including: immediately performing a firefighting operation on the target battery module in the event that the communication connection fails to be established; and instructing other mobile devices to perform a firefighting operation on the risk battery modules affected by thermal runaway of the target battery module.

[0017] In some embodiments, based on the fire fighting strategy corresponding to the result of establishing the communication connection, a fire fighting operation on the target battery module is performed, including: when the communication connection is successfully established, sending a door opening command to the management system of the target battery module to open the door of the cabinet where the target battery module is located; identifying the location information of the fire center inside the cabinet where the target battery module is located; based on the location information of the fire center, performing a fire fighting operation on the target battery module.

[0018] In some embodiments, based on the location information of the fire center, a firefighting operation is performed on the target battery module, including: based on the location information of the fire center, adjusting the direction of the nozzle of the fire hose carried by the mobile device to spray water on the fire center.

[0019] In some embodiments, identifying the location information of the fire center inside the storage cabinet where the target battery module is located includes: acquiring an infrared image of the interior of the storage cabinet where the target battery module is located and operating information of each battery in the target battery module; based on the infrared image of the interior of the storage cabinet where the target battery module is located and operating information of each battery in the target battery module, identifying the location information of the fire center inside the storage cabinet where the target battery module is located.

[0020] In some embodiments, based on an infrared image of the interior of a storage cabinet where a target battery module is located and operating information of each battery in the target battery module, location information of a fire center inside the storage cabinet where a target battery module is located is identified, including: obtaining multi-source fusion information of each battery partition of the target battery module based on an infrared image of the interior of the storage cabinet where the target battery module is located and operating information of each battery in the target battery module; the multi-source fusion information of each battery partition includes pixel information of the battery partition in the infrared image and operating information of each battery in the battery partition; the multi-source fusion information of each battery partition of the target battery module is input into a pre-trained fire center recognition model to obtain a fire center recognition result output by the fire center recognition model; the fire center recognition result is used to indicate location information of the battery partition where the fire center is located.

[0021] In some embodiments, the firefighting operation includes at least one of the following: spraying water using a fire hose, spraying using a coolant, and spraying using a fire extinguishing agent.

[0022] In some embodiments, the movable device is an automated guided vehicle (AGV).

[0023] In a second aspect, a fire fighting device of a battery energy storage system is provided, the device comprising:

[0024] A receiving module, used to receive a fire warning instruction for a target battery module in the battery energy storage system;

[0025] The response module is used to respond to the fire warning instruction, move to the designated location indicated by the fire warning instruction, and perform fire fighting operations on the target battery module.

[0026] In some embodiments, the response module is specifically used to perform firefighting operations on the target battery module based on the thermal runaway condition of the target battery module; the thermal runaway condition is used to indicate whether the thermal runaway of the target battery module has been effectively controlled.

[0027] In some embodiments, the fire warning instruction includes indication information for indicating a thermal runaway situation.

[0028] In some embodiments, the response module is specifically used to periodically perform safety checks on the target battery module when the thermal runaway situation indicates that the thermal runaway of the target battery module is effectively controlled, and to perform fire-fighting operations on the target battery module when the target battery module fails the safety check until the target battery module passes the safety check.

[0029] In some embodiments, the response module is specifically used to perform infrared temperature detection on the cabinet where the target battery module is located, and / or perform insulation detection on the outer surface of the cabinet where the target battery module is located.

[0030] In some embodiments, the target battery module fails the safety test, including at least one of the following: the temperature of the cabinet where the target battery module is located is greater than a preset temperature threshold; the outer surface of the cabinet where the target battery module is located is not insulated.

[0031] In some embodiments, the device further includes: a sending module. The sending module is used to send indication information indicating that the target battery module has passed the safety test to a management system in the battery energy storage system when the target battery module has passed the safety test.

[0032] In some embodiments, the response module is specifically used to attempt to establish a communication connection with the management system of the target battery module when the thermal runaway situation indicates that the thermal runaway of the target battery module is not effectively controlled; and execute fire fighting operations on the target battery module based on the fire fighting strategy corresponding to the result of establishing the communication connection.

[0033] In some embodiments, the response module is specifically used to immediately perform firefighting operations on the target battery module when the communication connection fails to be established; and to instruct other mobile devices to perform firefighting operations on risk battery modules affected by thermal runaway of the target battery module.

[0034] In some embodiments, the response module is specifically used to send a door opening command to the management system of the target battery module to open the door of the cabinet where the target battery module is located when the communication connection is successfully established; identify the location information of the fire center inside the cabinet where the target battery module is located; and perform fire fighting operations on the target battery module based on the location information of the fire center.

[0035] In some embodiments, the response module is specifically used to adjust the direction of the nozzle of the fire hose carried by the mobile device based on the location information of the fire center, so as to spray water to the fire center.

[0036] In some embodiments, the response module is specifically used to obtain an infrared image of the interior of the storage cabinet where the target battery module is located and the operating information of each battery in the target battery module; based on the infrared image of the interior of the storage cabinet where the target battery module is located and the operating information of each battery in the target battery module, identify the location information of the fire center inside the storage cabinet where the target battery module is located.

[0037] In some embodiments, the response module is specifically used to obtain multi-source fusion information of each battery partition of the target battery module based on the infrared image inside the storage cabinet where the target battery module is located and the operating information of each battery in the target battery module; the multi-source fusion information of each battery partition includes pixel information of the battery partition in the infrared image and the operating information of each battery in the battery partition; the multi-source fusion information of each battery partition of the target battery module is input into a pre-trained fire center recognition model to obtain a fire center recognition result output by the fire center recognition model; the fire center recognition result is used to indicate the location information of the battery partition where the fire center is located.

[0038] In some embodiments, the firefighting operation includes at least one of the following: spraying water using a fire hose, spraying using a coolant, and spraying using a fire extinguishing agent.

[0039] In some embodiments, the movable device is an AGV vehicle.

[0040] In a third aspect, an electronic device is provided, comprising: a processor and a memory for storing instructions executable by the processor; wherein the processor is configured to execute instructions to implement the fire fighting method of the battery energy storage system described above.

[0041] In a fourth aspect, a vehicle is provided, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the fire fighting method of the battery energy storage system described above.

[0042] In a fifth aspect, a computer-readable storage medium is provided, on which computer program instructions are stored. When the computer program instructions are executed by a processor, the fire fighting method of the battery energy storage system of any of the above embodiments is implemented.

[0043] In a sixth aspect, a computer program product is provided, the computer program product comprising computer program instructions, which, when executed by a processor, implement the fire fighting method of the battery energy storage system of any of the above embodiments.

[0044] For the specific description of the second to sixth aspects and their various implementations in the present application, reference may be made to the detailed description in the first aspect and its various implementations; and for the beneficial effects of the second to sixth aspects and their various implementations, reference may be made to the beneficial effects analysis in the first aspect and its various implementations, which will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to more clearly illustrate the technical solution in the present application, the drawings required for use in some embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only drawings of some embodiments of the present application. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0046] Figure 1 A schematic diagram of the structure of an AGV vehicle provided in an embodiment of the present application;

[0047] Figure 2 A flowchart of a fire fighting method for a battery energy storage system provided in an embodiment of the present application;

[0048] Figure 3 A flowchart of another fire fighting method of a battery energy storage system provided in an embodiment of the present application;

[0049] Figure 4 A flowchart of another fire fighting method of a battery energy storage system provided in an embodiment of the present application;

[0050] Figure 5 A flowchart of another fire fighting method of a battery energy storage system provided in an embodiment of the present application;

[0051] Figure 6 A schematic diagram of a spraying solution for controlling the spread of thermal runaway provided in an embodiment of the present application;

[0052] Figure 7A flowchart of another fire fighting method of a battery energy storage system provided in an embodiment of the present application;

[0053] Figure 8 A flowchart of another fire fighting method of a battery energy storage system provided in an embodiment of the present application;

[0054] Fig. 9 A flowchart of another fire fighting method of a battery energy storage system provided in an embodiment of the present application;

[0055] Fig.10 A grayscale schematic diagram of infrared thermal imaging preprocessing provided in an embodiment of the present application;

[0056] Fig.11 A flowchart of another fire fighting method of a battery energy storage system provided in an embodiment of the present application;

[0057] Fig.12 A schematic diagram of the structure of a fire-fighting device of a battery energy storage system provided in an embodiment of the present application;

[0058] Fig.13 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0059] The following will be combined with the drawings in this application to clearly and completely describe the technical solutions in this application. Obviously, the described embodiments are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0060] It should be noted that, in this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in this application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0061] In the following, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features.

[0062] In the description of this application, unless otherwise specified, " / " means "or", for example, A / B can mean A or B. "And / or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, "at least one" means one or more, and "multiple" means two or more.

[0063] With the rapid development of renewable energy and the continuous upgrading of power systems, battery energy storage systems have become an important part of the renewable energy field and power systems. Battery energy storage systems can not only balance the instability of renewable energy, but also improve the reliability and flexibility of power systems. However, battery energy storage systems are also accompanied by certain risks during operation. Under abnormal conditions such as overcharging, over-discharging, short circuit, high temperature, and mechanical damage, the chemical reaction inside the battery may get out of control, causing the internal temperature of the battery to rise and may trigger thermal runaway. During the battery thermal runaway process, the materials inside the battery will quickly decompose and generate a large amount of heat and flammable gases, causing a fire.

[0064] In the related technology, for the fire-fighting treatment method of the thermal runaway battery cluster of the battery energy storage system, when the fire-fighting system of the battery energy storage system cannot control the fire caused by the thermal runaway battery, the firefighters need to intervene in time. When the thermal runaway battery cluster is in a medium-high voltage cascade system under high-voltage suspension, the thermal runaway battery cluster is prone to re-ignition, flash explosion and other problems, resulting in the spread of thermal runaway, and there is a certain risk to the personal safety of the firefighters, and the equipment and property losses caused. Therefore, how to effectively suppress the spread of thermal runaway and reduce the risk of thermal runaway battery clusters is a technical problem that needs to be solved urgently.

[0065] Furthermore, the fire-fighting methods for thermal runaway batteries in the related art cannot accurately identify and conduct targeted fire-fighting control on thermal runaway batteries in the battery energy storage system. When a PACK or a battery cluster in the battery energy storage system experiences thermal runaway, destructive fire-fighting strategies are often implemented on other battery clusters, causing damage to other battery clusters.

[0066] In response to the above problems, the embodiment of the present application provides a fire fighting method for a battery energy storage system, in which a mobile device can accurately locate the location of a target battery module that has thermal runaway based on a fire warning instruction, thereby ensuring the accuracy of the fire fighting measures of the mobile device. In addition, the mobile device can also quickly move to the designated location indicated by the fire warning instruction based on the fire warning instruction, and perform fire fighting operations on the target battery module, thereby effectively suppressing the spread of thermal runaway of the target battery module and reducing the equipment and property losses caused by thermal runaway of the target battery module.

[0067] For ease of understanding, the fire fighting method of the battery energy storage system provided in the present application is specifically introduced below with reference to the accompanying drawings.

[0068] Figure 1 This is a schematic diagram of the structure of an AGV vehicle provided in an embodiment of the present application. Figure 1 As shown, the AGV vehicle 100 includes: an infrared imaging module 101, a wireless Bluetooth communication module 102, a multi-source information fusion calculation module 103, an insulation detection module 104, and a tracking, positioning and fire hose angle control calculation module 105. Among them, the infrared imaging module 101 and the wireless Bluetooth communication module 102 are respectively connected to the multi-source information fusion calculation module 103, the wireless Bluetooth communication module 102 is also connected to the tracking, positioning and fire hose angle control calculation module 105, and the multi-source information fusion calculation module 103 is connected to.

[0069] In some embodiments, the infrared imaging module 101 is used to collect the infrared grayscale image of the thermal runaway battery module (i.e., the target battery module) and send the infrared grayscale image of the thermal runaway battery module to the multi-source information fusion calculation module 103.

[0070] In some embodiments, the infrared imaging module 101 is also used to obtain temperature detection data of the thermal runaway battery module from the site energy management system (EMS) and the upper platform, or to send temperature detection data of the thermal runaway battery module to the site EMS and the upper platform.

[0071] In some embodiments, the wireless Bluetooth communication module 102 is used to communicate with the station EMS and the upper platform, and the battery management system (BMS) in the thermal runaway battery module, and obtain the battery cell temperature and voltage data from the BMS in the thermal runaway battery module, and send the battery cell temperature and voltage data to the multi-source information fusion calculation module 103.

[0072] For example, the AGV vehicle can send a command to open the door panel to the BMS in the thermal runaway battery module through the wireless Bluetooth communication module 102, and the BMS in the thermal runaway battery module can perform electromagnetic lock control to automatically pop open the door panel.

[0073] In some embodiments, the wireless Bluetooth communication module 102 is also used to obtain the location of the thermal runaway battery module from the station EMS and the upper platform, and send the communication status between the AGV vehicle and the BMS in the thermal runaway battery module to the station EMS and the upper platform.

[0074] In some embodiments, the wireless Bluetooth communication module 102 is also used to send the thermal runaway battery module location information to the tracking, positioning and fire hose angle control calculation module 105.

[0075] In some embodiments, the multi-source information fusion calculation module 103 is used to receive the infrared grayscale image sent by the infrared imaging module 101 and the battery cell temperature and voltage data sent by the wireless Bluetooth communication module 102, clean and standardize the received data, and use the trained neural network model to identify and determine the partition position of the thermal runaway center in the empty battery module.

[0076] In some embodiments, the multi-source information fusion calculation module 103 is also used to send the partitioned location of the thermal runaway center to the tracking, positioning and fire hose angle control calculation module 105.

[0077] In some embodiments, the insulation detection module 104 is used to evaluate the electrical safety of the battery energy storage system cabinet before the station personnel intervene. The insulation detection module 104 is also used to send insulation detection data to the station EMS and the upper platform.

[0078] In some embodiments, the tracking, positioning and fire hose angle control calculation module 105 is used to receive the thermal runaway center partition position sent by the multi-source information fusion calculation module 103 and the thermal runaway battery module position sent by the wireless Bluetooth communication module 102, and respond to the thermal runaway module position information to guide the AGV vehicle to the corresponding position, and adjust the parking posture of the AGV vehicle and the spray angle of the fire hose according to the thermal runaway center position.

[0079] It should be noted that the above scenario is for the purpose of more clearly illustrating the technical solution of the embodiment of the present application, and does not constitute a limitation on the technical solution provided by the embodiment of the present application. Ordinary technicians in this field can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution provided by the embodiment of the present application is also applicable to similar technical problems.

[0080] Figure 2 A fire fighting method for a battery energy storage system provided in an embodiment of the present application, such as Figure 2 As shown, the method includes the following steps S101-S102:

[0081] S101, receiving a fire warning instruction for a target battery module in a battery energy storage system.

[0082] In some embodiments, when a target battery module in a battery energy storage system experiences thermal runaway, the BMS of the target battery module sends a fire warning instruction to the battery energy storage system. The fire warning instruction carries the location of the target battery module. The battery energy storage system can send the fire warning instruction of the target battery module to a mobile device so that the mobile device can take corresponding fire fighting operations on the target battery module based on the fire warning instruction.

[0083] It should be understood that the target battery module in the battery energy storage system may be a battery cluster, a battery module, a battery pack, or a battery module of other structures, which is not limited in the embodiments of the present application.

[0084] It should also be understood that the mobile device can be an AGV vehicle, or other mobile devices that can carry firefighting equipment and take firefighting measures on the battery modules in the battery energy storage system, and the present application embodiment does not limit this. The present application embodiment introduces the firefighting method of the battery energy storage system of the present application with the mobile device being an AGV vehicle.

[0085] S102 . In response to a fire warning instruction, move to a designated location indicated by the fire warning instruction and perform a firefighting operation on a target battery module.

[0086] Among them, the fire warning instruction includes indication information for indicating thermal runaway conditions.

[0087] In some embodiments, after receiving the fire warning instruction of the target battery module, the mobile device can respond to the fire warning instruction, move to the designated location indicated by the fire warning instruction, and perform a fire fighting operation on the target battery module.

[0088] Exemplarily, the mobile device can respond to the fire warning instruction, carry a fire hose and fire extinguishing materials, move to a designated location near the target battery module indicated by the fire warning instruction according to a set trajectory, and perform fire fighting operations on the target battery module based on the thermal runaway of the target battery module. The designated location indicated by the fire warning instruction can be a designated location near the target battery module, or a designated location that is convenient for performing fire fighting operations on the target battery module, which is not limited in the embodiments of the present application.

[0089] It should be noted that the firefighting operation includes at least one of the following: spraying water with a fire hose, spraying with a coolant, and spraying with a fire extinguishing agent. The firefighting operation can also be any method to prevent the target battery module from being put into thermal runaway or to prevent the target battery module from having thermal runaway, which is not limited in the embodiments of the present application.

[0090] It should be understood that the mobile device can accurately locate the target battery module that has thermal runaway based on the fire warning instruction, and move to a designated location near the target battery module to perform firefighting operations on the target battery module, thereby ensuring the accuracy of the firefighting measures of the mobile device. Moreover, by using the mobile device to perform firefighting operations on the target battery module, the spread of thermal runaway of the target battery module can be effectively suppressed, reducing the equipment and property losses caused by thermal runaway of the target battery module.

[0091] It should be noted that the situations in which thermal runaway occurs in the target battery module include at least one of the following: when the target battery module is in a state of overcharge, over-discharge, or overload, external short circuit and internal short circuit are caused, and a large amount of heat is generated inside the target battery module, resulting in thermal runaway. Alternatively, the target battery module is operated or stored in an external high-temperature environment, and the thermal stability is reduced, resulting in thermal runaway. Alternatively, the target battery module is squeezed, collided, punctured, or bent, and the internal structure of the target battery module is damaged, causing an internal short circuit, resulting in thermal runaway. Alternatively, due to diaphragm failure or other reasons, the positive and negative electrodes are in direct contact inside the target battery module, triggering a violent electrochemical reaction and generating a large amount of heat, resulting in thermal runaway, etc.

[0092] In some embodiments, the firefighting operation on the target battery module may be implemented through the following steps: based on the thermal runaway condition of the target battery module, the firefighting operation on the target battery module is performed.

[0093] Among them, the thermal runaway situation is used to characterize whether the thermal runaway of the target battery module has been effectively controlled.

[0094] As an example, the mobile device may determine whether the target battery module requires the mobile device to perform firefighting operations on it based on the thermal runaway situation of the target battery module. When the thermal runaway situation is used to characterize that the thermal runaway of the target battery module has been effectively controlled, it means that the thermal runaway of the target battery module is controllable. After the mobile device moves to a designated location near the target battery module, the mobile device may not perform firefighting operations on the target battery module first, but perform safety inspections on the target battery module, so that the mobile device can take corresponding firefighting measures on the target battery module based on the results of the safety inspection. When the thermal runaway situation is used to characterize that the thermal runaway of the target battery module has not been effectively controlled, it means that the thermal runaway of the target battery module is uncontrollable. After the mobile device moves to a designated location near the target battery module, the mobile device needs to immediately take corresponding firefighting operations according to the actual situation of the target battery module to prevent the thermal runaway of the target battery module from spreading.

[0095] It should be noted that after the target battery module in the battery energy storage system has thermal runaway, the battery energy storage system can first call the fire protection system of the target battery module itself, activate the gas fire protection measures, reduce the concentration of flammable gas in the target battery module through the fan and release the explosion suppression gas. The battery energy storage system can detect the temperature in the target battery module through the sensor. When the temperature in the target battery module exceeds the thermal runaway threshold, the thermal runaway of the target battery module cannot be controlled based on the fire protection system of the target battery module itself. The battery energy storage system can send a fire warning instruction carrying the address of the target battery module to the mobile device set in the station, and guide the mobile device carrying the fire hose and fire extinguishing material to the target battery module with thermal runaway according to the set trajectory. When the temperature in the target battery module does not exceed the thermal runaway threshold, the thermal runaway of the target battery module can be controlled based on the fire protection system of the target battery module itself. The battery energy storage system can also send a fire warning instruction to the mobile device set in the station, and guide the mobile device carrying the fire hose and fire extinguishing material to the target battery module with thermal runaway according to the set trajectory, so that the mobile device can perform safety detection on the target battery module to avoid accidents.

[0096] It should be understood that the above-mentioned thermal runaway situation is used to characterize that the thermal runaway of the target battery module has been effectively controlled. The fire protection system of the target battery module itself can control the thermal runaway situation of the target battery module, or the thermal runaway situation of the target battery module can be controlled by a movable device or a movable device. The embodiments of the present application are not limited to this.

[0097] In some embodiments, when the thermal runaway situation indicates that the thermal runaway of the target battery module is under effective control, the mobile device can periodically perform safety checks on the target battery module to avoid accidents in the target battery module. Therefore, the firefighting operation on the target battery module based on the thermal runaway situation of the target battery module can be implemented through the following steps: when the thermal runaway situation indicates that the thermal runaway of the target battery module is under effective control, periodically perform safety checks on the target battery module, and when the target battery module fails the safety check, perform the firefighting operation on the target battery module until the target battery module passes the safety check.

[0098] As an example, after the gas fire protection of the fire protection system of the target battery module itself is enabled, the battery energy storage system can detect the temperature inside the target battery module through sensors. If the temperature does not exceed the thermal runaway threshold, it means that the fire protection system of the target battery module itself can effectively control the thermal runaway of the target battery module. After the mobile device moves to the designated position near the target battery module, it can detect the temperature inside the target battery module through infrared thermal imaging at regular intervals to prevent the risk of re-ignition and flash explosion of abnormal battery modules. The outer surface of the battery energy storage system cabinet is also inspected through the insulation detection module to prevent the high-voltage cascade system from having residual power after the shutdown, avoiding the risk of electric shock when relevant personnel intervene. If the insulation detection and temperature detection of the abnormal module pass, the site personnel can intervene for maintenance. If the target battery module fails the safety detection, the mobile device can perform fire protection operations on the target battery module until the target battery module passes the safety detection.

[0099] It should be noted that if the safety test of the target battery module fails, that is, the insulation test and / or the temperature test fails, the mobile device can connect the fire hose to the water fire interface of the module to spray water into the target battery module to reduce the temperature inside the target battery module. Then, at regular intervals, the temperature inside the battery module is detected again by infrared thermal imaging, and the outer surface of the battery energy storage system cabinet is tested by the insulation detection module. If the insulation test and temperature test of the abnormal module pass, the station personnel are allowed to intervene in the maintenance. If it still fails, the above process is repeated until the test results are normal.

[0100] In some embodiments, the above-mentioned safety detection of the target battery module can be specifically implemented through the following steps: performing infrared temperature detection on the cabinet where the target battery module is located, and / or performing insulation detection on the outer surface of the cabinet where the target battery module is located.

[0101] It should be noted that the target battery module fails the safety test, including at least one of the following: the temperature of the cabinet where the target battery module is located is greater than a preset temperature threshold, and the outer surface of the cabinet where the target battery module is located is not insulated.

[0102] It should be understood that the movable device performs safety checks on the target battery module, thereby allowing relevant technicians to repair the target battery module if the target battery module passes the safety check. Through the safety check, the recurrence of thermal runaway of the target battery module or the uninsulated outer surface of the storage cabinet where the target battery module is located is avoided, thereby reducing the possibility of potential dangers of the target battery module and ensuring the safety of relevant technicians and equipment.

[0103] In some embodiments, Figure 3 As shown, the fire fighting method of the battery energy storage system further includes S103:

[0104] S103: When the target battery module passes the safety test, send indication information indicating that the target battery module passes the safety test to a management system in the battery energy storage system.

[0105] As an example, when the target battery module passes the safety test, the mobile device can send indication information to the management system in the battery energy storage system to indicate that the target battery module has passed the safety test, so that station personnel can intervene and repair the target battery module based on the indication information.

[0106] In some embodiments, when the thermal runaway condition indicates that the thermal runaway of the target battery module is not effectively controlled, such as Figure 4 As shown, the firefighting operation for the target battery module is performed based on the thermal runaway condition of the target battery module, which can be specifically implemented as the following steps S201-S202:

[0107] S201 : When the thermal runaway condition indicates that the thermal runaway of the target battery module is not effectively controlled, attempt to establish a communication connection with a management system of the target battery module.

[0108] As an example, when the thermal runaway situation indicates that the thermal runaway of the target battery module is not effectively controlled, the mobile device can send a wireless Bluetooth signal to attempt to establish a communication connection with the BMS management system of the target battery module so as to obtain the operating status of the target battery module from the BMS management system of the target battery module.

[0109] S202: Execute a fire fighting operation on a target battery module based on a fire fighting strategy corresponding to the communication connection establishment result.

[0110] As an example, the mobile device may select a corresponding fire fighting strategy based on the result of establishing a communication connection with the target battery module, thereby performing a fire fighting operation on the target battery module based on the corresponding fire fighting strategy.

[0111] In some embodiments, if the mobile device fails to establish a communication connection with the target battery module, the mobile device needs to immediately perform a firefighting operation on the target battery module. Figure 5 As shown, the above step S202 can be specifically implemented as: steps S2021-S2022.

[0112] S2021. In the event that the communication connection fails to be established, immediately perform firefighting operations on the target battery module.

[0113] As an example, when the mobile device fails to establish a communication connection with the target battery module, it means that the thermal runaway of the target battery module has affected its internal communication devices and control board, and there is a risk of the thermal runaway of the target battery module spreading, and the door panel of the target battery module may not be able to open normally. The mobile device can directly connect the fire hose it carries to the water fire interface of the target battery module to perform firefighting operations inside the target battery module. Among them, the target battery module's own fire protection system has independent inter-module partitions, each module is equipped with a water fire interface, and the partition wall has a certain fire resistance.

[0114] S2022. Instruct other mobile devices to perform firefighting operations on risk battery modules affected by thermal runaway of the target battery module.

[0115] As an example, the mobile device may also send early warning information of the spread of thermal runaway to the battery energy storage system, and the battery energy storage system may instruct other mobile devices in the station to perform firefighting operations on risk battery modules affected by thermal runaway of the target battery module based on the early warning information of the spread of thermal runaway.

[0116] Exemplarily, other movable devices within the station can be moved to designated positions near the risk battery modules affected by thermal runaway of the target battery modules based on the partitioned positions of the target battery modules, spray and cool the outside of the risk battery modules to prevent the spread of thermal runaway, and connect the main water pipe to the external sprinkler water fire-fighting interface of the energy storage system. Figure 6 A schematic diagram of a spraying solution for controlling the spread of thermal runaway provided in an embodiment of the present application is shown in FIG. Figure 6 As shown, 601 is a thermal runaway cluster (i.e., target battery module), 602 is three risk clusters (i.e., risk battery modules) around the thermal runaway cluster, 603 is a built-in water pipe interface of the thermal runaway cluster, 604 is an external main water pipe interface, and 605 is a sprinkler port. The mobile device directly connects the thermal runaway cluster 601 in the figure to the built-in water pipe interface 603 of water firefighting, and other mobile devices perform external cooling treatment on the three risk clusters 602 around the thermal runaway cluster, and connect the external main water pipe interface 604 to the external sprinkler port 605 of the energy storage system.

[0117] In some embodiments, when the mobile device successfully establishes a communication connection with the target battery module, the mobile device can determine the location information of the fire center in the target battery module, and perform a firefighting operation on the target battery module based on the location information of the fire center. Figure 7 As shown, the above step S202 can be specifically implemented as: steps S202a-S202c.

[0118] S202a: When the communication connection is successfully established, a cabinet door opening instruction is sent to the management system of the target battery module to open the cabinet door of the storage cabinet where the target battery module is located.

[0119] As an example, when the mobile device successfully establishes a communication connection with the target battery module, the mobile device can obtain the real-time temperature of the target battery module and the battery operation information, and send an instruction to the BMS system of the target battery module to open the door of the cabinet where the target battery module is located. The BMS system of the target battery module can open the electromagnetic lock of the door of the cabinet where the target battery module is located based on the instruction of the mobile device, thereby opening the door of the cabinet where the target battery module is located.

[0120] S202b. Identify the location information of the fire center inside the storage cabinet where the target battery module is located.

[0121] As an example, after opening the door of the cabinet where the target battery module is located, the movable device can identify the location information of the fire center inside the cabinet where the target battery module is located based on the infrared image inside the cabinet where the target battery module is located and the operating information of each battery in the target battery module.

[0122] S202c: Based on the location information of the fire center, perform firefighting operations on the target battery module.

[0123] As an example, after the mobile device determines the location information of the fire center inside the storage cabinet where the target battery module is located, it can adjust the parking posture of the mobile device and the direction of the nozzle of the carried fire hose based on the location information of the fire center to spray water on the fire center.

[0124] In some embodiments, the mobile device can determine the location information of the fire center inside the storage cabinet where the target battery module is located based on the infrared image inside the storage cabinet where the target battery module is located and the operating information of each battery in the target battery module. Figure 8 As shown, the above step S202b can be specifically implemented as: steps S301-S302.

[0125] S301, acquiring an infrared image of the interior of a storage cabinet where a target battery module is located and operating information of each battery in the target battery module.

[0126] As an example, the mobile device can obtain an infrared image of the inside of the storage cabinet where the target battery module is located based on the configured infrared thermal imaging unit. The mobile device can also obtain the operating information and temperature information of each battery in the target battery module from the BMS system of the target battery module, thereby judging the fire point and the surrounding spread based on the infrared image of the inside of the storage cabinet where the target battery module is located and the operating information of each battery in the target battery module.

[0127] S302: Based on the infrared image of the interior of the storage cabinet where the target battery module is located and the operation information of each battery in the target battery module, identify the location information of the fire center inside the storage cabinet where the target battery module is located.

[0128] As an example, the mobile device can obtain multi-source fusion information of each battery partition of the target battery module based on the infrared image of the inside of the storage cabinet where the target battery module is located and the operating information of each battery in the target battery module, and input the multi-source fusion information of each battery partition of the target battery module into a pre-trained fire center recognition model to obtain the position information of the battery partition where the fire center is located, which is output by the fire center recognition model.

[0129] In some embodiments, Fig. 9 As shown, the above step S302 can be specifically implemented as: steps S3021-S3022.

[0130] S3021. Based on the infrared image inside the storage cabinet where the target battery module is located and the operation information of each battery in the target battery module, obtain multi-source fusion information of each battery partition of the target battery module.

[0131] The multi-source fusion information of each battery partition includes the pixel information of the battery partition in the infrared image and the operation information of each battery in the battery partition.

[0132] In some embodiments, the movable device can convert an infrared image of the interior of the storage cabinet where the target battery module is located into a grayscale image, thereby determining the partition location with the highest temperature in the storage cabinet where the target battery module is located, and preprocess the operating information of each battery in the target battery module, and combine the preprocessed operating information of each battery with the grayscale image inside the storage cabinet where the target battery module is located to determine the multi-source fusion information of each battery partition of the target battery module.

[0133] As an example, the mobile device can first convert a color infrared image into a grayscale image. The processed image has 256 grayscale levels, 255 represents full white, and 0 represents full black. Then the image of the target battery module area is partitioned, and the grayscale image of each area is pooled to determine the average grayscale value of each partition. The higher the average grayscale value in the partition, the higher the brightness of the location and the highest identified temperature. The mobile device can also pre-process the battery cell temperature and voltage information. When the battery thermal runaway occurs, the battery cell voltage will drop rapidly. Therefore, the battery data provided by the BMS system needs to include all temperature and voltage data within a period of time. For the battery temperature and voltage data, it is necessary to correspond to the partitions divided above, take the average of all battery cell temperatures and voltages in a single partition, and associate the obtained temperature and voltage values ​​with the partitions to obtain multi-source fusion information of each battery partition of the target battery module.

[0134] For example, Fig.10 A grayscale schematic diagram of infrared thermal imaging preprocessing provided in an embodiment of the present application is shown in FIG. Fig.10 As shown, the vertical direction is partitioned according to the stacking position of the battery pack (PACK) of the target battery module, including: 1-layer battery pack, 2-layer battery pack, 3-layer battery pack, 4-layer battery pack, ..., N-layer battery pack. The number of partitions in the horizontal direction depends on the spraying capacity of the fire hose carried by the mobile device. Fig.10 Take three partitions as an example. The horizontal partitions can be expressed as [i, 1], [i, 2], [i, 3], and the vertical partitions can be expressed as [1, j], [2, j], [3, j], [4, j], [n, j]. It can be seen that when judging only by infrared image recognition information, the thermal runaway center should be at the center of the third layer of the battery pack, where the grayscale level is the highest, indicating that the brightness of this partition position is the highest and the recognized temperature is the highest.

[0135] It should be understood that since the imaging quality of infrared images is affected by factors such as temperature, humidity and other gases, it is necessary to use a neural network to fuse the temperature, voltage and other information of each battery cell provided by the BMS system with the pooled infrared image information to ensure the accuracy of the judgment of the thermal runaway center position.

[0136] S3022. Input the multi-source fusion information of each battery partition of the target battery module into a pre-trained fire center recognition model to obtain a fire center recognition result output by the fire center recognition model.

[0137] The fire center identification result is used to indicate the location information of the battery partition where the fire center is located.

[0138] In some embodiments, the mobile device can input the processed grayscale image, temperature, voltage value association time and partition location information in the form of a matrix into a pre-trained fire center recognition model, thereby obtaining the fire center recognition result output by the fire center recognition model.

[0139] It should be noted that the mobile device can manually annotate the feature data of some data in advance to make a test data set (including thermal runaway data under various ambient temperatures and weather conditions), and then train the neural network using group training and multi-instance learning to obtain a fire center recognition model. The trained fire center recognition model can assign weights to each type of information, fuse the data of each sensor to obtain the proportion of the possibility of thermal runaway in each partition, identify the partition with the highest possibility as the thermal runaway center, and output the location information of the partition.

[0140] It should be understood that since the target battery module contains multiple battery PACKs, there are height differences between different fire points. The tracking trajectory and docking position of the mobile device and the installation position of the battery PACK inside the battery module are relatively fixed. The mobile device can adjust the docking posture of the mobile device according to the partition position determined as the center of thermal runaway, and control the spray direction of the fire-fighting material by setting the angle between the water outlet carried by the mobile device and the ground, so as to achieve the purpose of efficient fire extinguishing.

[0141] It can be understood that the method provided in the embodiment of the present application achieves effective suppression of the spread of thermal runaway and reduces equipment and property losses caused by thermal runaway through multi-level fire zone isolation. In addition, the movable device can accurately identify the center position of the thermal runaway of the target battery module by fusing various types of sensor information. In addition, a variety of sensors are set inside and outside the battery energy storage system cabinet to effectively improve the recognition accuracy and thermal runaway suppression efficiency, and reduce the impact of the environment and thermal runaway itself on the recognition accuracy. In addition, multiple mobile device linkage control strategies are introduced to perform different fire action responses for different thermal runaway scenarios, so that when the battery energy storage system is down and the auxiliary circuit backup power is exhausted, the temperature and insulation status of the target battery module can still be continuously detected, which improves the fire automation level of the station and ensures the safety of people and property.

[0142] For ease of understanding, the fire fighting method of the battery energy storage system of the embodiment of the present application is further described below in the form of examples.

[0143] For example, Fig.11 A flowchart of another fire fighting method of a battery energy storage system provided in an embodiment of the present application. Fig.11 As shown, the method can be implemented as the following steps:

[0144] The system BMS (i.e. battery energy storage system) receives a fire warning signal and the system shuts down. The gas fire protection is activated, the sensor detects the temperature inside the battery pack, and the system BMS determines whether it exceeds the thermal runaway threshold.

[0145] If the thermal runaway threshold is not exceeded, the faulty energy storage system cabinet (i.e., the energy storage system cabinet of the target battery module) is isolated, and a trolley (i.e., a mobile device) is used to perform infrared temperature detection on the outer surface of the energy storage system cabinet at regular intervals, and the trolley performs insulation detection on the outer surface of the energy storage system cabinet. It is determined whether the insulation detection and temperature detection (i.e., safety detection) have passed.

[0146] If the insulation test and temperature test pass, personnel will intervene. If the insulation test and temperature test fail, water firefighting will be directly connected.

[0147] Isolate the faulty energy storage system cabinet, and use the trolley to perform infrared temperature detection on the outer surface of the energy storage system cabinet at regular intervals. Perform insulation detection on the outer surface of the energy storage system cabinet to determine whether the insulation detection and temperature detection have passed. If the insulation detection and temperature detection have passed, personnel intervene. If the insulation detection and temperature detection have not passed, continue to isolate the faulty energy storage system cabinet, and perform infrared temperature detection and insulation detection on the outer surface of the energy storage system cabinet at regular intervals.

[0148] When the thermal runaway threshold is exceeded and gas firefighting fails to effectively control the thermal runaway, the car carries a fire hose and fire-extinguishing materials to the thermal runaway cluster (i.e., the target battery module) to determine whether the car can communicate with the BMS (i.e., the BMS system of the target battery module).

[0149] When the vehicle can communicate with the BMS, a command is sent to the electromagnetic lock to open the hatch. The fire center is determined by fusion of heterogeneous information, and the location information of the fire center is calculated to adjust the AGV parking position and the water pipe spray angle.

[0150] Isolate the faulty energy storage system cabinet, and use the trolley to perform infrared temperature detection on the outer surface of the energy storage system cabinet at regular intervals. Perform insulation detection on the outer surface of the energy storage system cabinet to determine whether the insulation detection and temperature detection have passed. If the insulation detection and temperature detection have passed, personnel intervene. If the insulation detection and temperature detection have not passed, continue to isolate the faulty energy storage system cabinet, and perform infrared temperature detection and insulation detection on the outer surface of the energy storage system cabinet at regular intervals.

[0151] When the car cannot communicate with the BMS, it directly connects to the water fire protection and activates other AGV cars in the station to cool down the outside of the nearby battery cluster.

[0152] Isolate the faulty energy storage system cabinet, and use the trolley to perform infrared temperature detection on the outer surface of the energy storage system cabinet at regular intervals. Perform insulation detection on the outer surface of the energy storage system cabinet to determine whether the insulation detection and temperature detection have passed. If the insulation detection and temperature detection have passed, personnel intervene. If the insulation detection and temperature detection have not passed, continue to isolate the faulty energy storage system cabinet, and perform infrared temperature detection and insulation detection on the outer surface of the energy storage system cabinet at regular intervals.

[0153] The above mainly introduces the scheme of the embodiment of the present application from the perspective of the method. It can be understood that in order to realize the above functions, the fire-fighting device of the battery energy storage system includes at least one of the hardware structure and software modules corresponding to each function. Those skilled in the art should easily realize that, in combination with the units and algorithm steps of each example described in the embodiments disclosed in this document, the embodiments of the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the embodiments of the present application.

[0154] It is understandable that in order to realize the above functions, the fire-fighting device of the battery energy storage system includes hardware structures and / or software modules corresponding to the execution of each function. Those skilled in the art should easily realize that, in combination with the algorithm steps of each example described in the embodiments of the present application, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0155] The embodiment of the present application can divide the fire-fighting device of the battery energy storage system into functional modules according to the above-mentioned method embodiment. For example, each functional module can be divided corresponding to each function, or two or more functions can be integrated into one functional module. The above-mentioned integrated module can be implemented in the form of hardware or software. It should be noted that the division of modules in the embodiment of the present application is schematic and is only a logical function division. There may be other division methods in actual implementation. The following is an example of dividing each functional module corresponding to each function.

[0156] Fig.12Schematic diagram of the structure of a fire fighting device of a battery energy storage system provided in an embodiment of the present application. The fire fighting device of the battery energy storage system is applied to a mobile device and can execute the fire fighting method of the battery energy storage system provided in the above method embodiment. Fig.12 As shown, the fire fighting device 1200 of the battery energy storage system includes: a receiving module 1201 and a responding module 1202 .

[0157] A receiving module 1201 is used to receive a fire warning instruction for a target battery module in the battery energy storage system;

[0158] The response module 1202 is used to respond to the fire warning instruction, move to the designated location indicated by the fire warning instruction, and perform a fire fighting operation on the target battery module.

[0159] In some embodiments, the response module 1202 is specifically used to perform firefighting operations on the target battery module based on the thermal runaway condition of the target battery module; the thermal runaway condition is used to indicate whether the thermal runaway of the target battery module has been effectively controlled.

[0160] In some embodiments, the fire warning instruction includes indication information for indicating a thermal runaway situation.

[0161] In some embodiments, the response module 1202 is specifically used to periodically perform safety checks on the target battery module when the thermal runaway situation indicates that the thermal runaway of the target battery module is effectively controlled, and to perform fire-fighting operations on the target battery module when the target battery module fails the safety check until the target battery module passes the safety check.

[0162] In some embodiments, the response module 1202 is specifically used to perform infrared temperature detection on the cabinet where the target battery module is located, and / or perform insulation detection on the outer surface of the cabinet where the target battery module is located.

[0163] In some embodiments, the target battery module fails the safety test, including at least one of the following: the temperature of the cabinet where the target battery module is located is greater than a preset temperature threshold; the outer surface of the cabinet where the target battery module is located is not insulated.

[0164] In some embodiments, the device further includes: a sending module 1203. The sending module 1203 is used to send indication information indicating that the target battery module has passed the safety test to a management system in the battery energy storage system when the target battery module has passed the safety test.

[0165] In some embodiments, the response module 1202 is specifically used to attempt to establish a communication connection with the management system of the target battery module when the thermal runaway situation indicates that the thermal runaway of the target battery module is not effectively controlled; and execute fire fighting operations on the target battery module based on the fire fighting strategy corresponding to the result of establishing the communication connection.

[0166] In some embodiments, the response module 1202 is specifically used to immediately perform firefighting operations on the target battery module when the communication connection fails to be established; and to instruct other mobile devices to perform firefighting operations on risk battery modules affected by thermal runaway of the target battery module.

[0167] In some embodiments, the response module 1202 is specifically used to send a door opening command to the management system of the target battery module to open the door of the cabinet where the target battery module is located when the communication connection is successfully established; identify the location information of the fire center inside the cabinet where the target battery module is located; and perform fire fighting operations on the target battery module based on the location information of the fire center.

[0168] In some embodiments, the response module 1202 is specifically used to adjust the direction of the nozzle of the fire hose carried by the mobile device based on the location information of the fire center, so as to spray water to the fire center.

[0169] In some embodiments, the response module 1202 is specifically used to obtain an infrared image of the interior of the storage cabinet where the target battery module is located and the operating information of each battery in the target battery module; based on the infrared image of the interior of the storage cabinet where the target battery module is located and the operating information of each battery in the target battery module, identify the location information of the fire center inside the storage cabinet where the target battery module is located.

[0170] In some embodiments, the response module 1202 is specifically used to obtain multi-source fusion information of each battery partition of the target battery module based on the infrared image inside the storage cabinet where the target battery module is located and the operating information of each battery in the target battery module; the multi-source fusion information of each battery partition includes pixel information of the battery partition in the infrared image and the operating information of each battery in the battery partition; the multi-source fusion information of each battery partition of the target battery module is input into a pre-trained fire center recognition model to obtain a fire center recognition result output by the fire center recognition model; the fire center recognition result is used to indicate the location information of the battery partition where the fire center is located.

[0171] In some embodiments, the firefighting operation includes at least one of the following: spraying water using a fire hose, spraying using a coolant, and spraying using a fire extinguishing agent.

[0172] In some embodiments, the movable device is an AGV vehicle.

[0173] In the case of implementing the functions of the above-mentioned integrated modules in the form of hardware, the embodiments of the present application provide a possible structure of the electronic device involved in the above-mentioned embodiments. Fig.13 As shown, the electronic device 1300 includes: a processor 1302 and a bus 1304. Optionally, the electronic device 1300 may further include a memory 1301; optionally, the electronic device 1300 may further include a communication interface 1303.

[0174] Processor 1302 may be a processor that implements or executes various exemplary logic blocks, modules, and circuits described in conjunction with the embodiments of the present application. The processor 1302 may be a central processing unit, a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array, or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It may implement or execute various exemplary logic blocks, modules, and circuits described in conjunction with the embodiments of the present application. Processor 1302 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.

[0175] The communication interface 1303 is used to connect with other devices via a communication network, such as Ethernet, wireless access network, wireless local area network (WLAN), etc.

[0176] The memory 1301 may be a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, a random access memory (RAM) or other types of dynamic storage devices that can store information and instructions, or an electrically erasable programmable read-only memory (EEPROM), a disk storage medium or other magnetic storage devices, or any other medium that can be used to carry or store desired program codes in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto.

[0177] As a possible implementation, the memory 1301 may exist independently of the processor 1302, and the memory 1301 may be connected to the processor 1302 via a bus 1304 for storing instructions or program codes. When the processor 1302 calls and executes the instructions or program codes stored in the memory 1301, the positioning method provided in the embodiment of the present application can be implemented.

[0178] In another possible implementation, the memory 1301 may also be integrated with the processor 1302 .

[0179] The bus 1304 may be an extended industry standard architecture (EISA) bus, etc. The bus 1304 may be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Fig.13 Only one thick line is used in the diagram, but this does not mean that there is only one bus or only one type of bus.

[0180] Some embodiments of the present application provide a computer-readable storage medium (for example, a non-transitory computer-readable storage medium), in which computer program instructions are stored. When the computer program instructions are executed on a computer, the computer executes a positioning method as in any of the above embodiments.

[0181] Exemplarily, the above-mentioned computer-readable storage media may include, but are not limited to: magnetic storage devices (e.g., hard disks, floppy disks or magnetic tapes, etc.), optical disks (e.g., compact disks (CDs), digital versatile disks (DVDs), etc.), smart cards and flash memory devices (e.g., erasable programmable read-only memory (EPROM), cards, sticks or key drives, etc.). The various computer-readable storage media described in this application may represent one or more devices and / or other machine-readable storage media for storing information. The term "machine-readable storage medium" may include, but is not limited to, wireless channels and various other media capable of storing, containing and / or carrying instructions and / or data.

[0182] An embodiment of the present application provides a computer program product comprising instructions. When the computer program product is run on a computer, the computer is enabled to execute the positioning method of any one of the above embodiments.

[0183] The above are only specific implementations of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A fire fighting method for a battery energy storage system, characterized in that: Applied to a mobile device, the method comprises: Receiving a fire warning instruction for a target battery module in the battery energy storage system; In response to the fire warning instruction, the device moves to a designated location indicated by the fire warning instruction and performs a fire fighting operation on the target battery module.

2. The method according to claim 1, characterized in that The performing of a firefighting operation on the target battery module includes: Based on the thermal runaway condition of the target battery module, a firefighting operation is performed on the target battery module; the thermal runaway condition is used to indicate whether the thermal runaway of the target battery module has been effectively controlled.

3. The method according to claim 2, characterized in that The fire warning instruction includes indication information for indicating the thermal runaway situation.

4. The method according to claim 2, characterized in that: The performing a firefighting operation on the target battery module based on the thermal runaway condition of the target battery module comprises: When the thermal runaway situation indicates that the thermal runaway of the target battery module is effectively controlled, the target battery module is periodically subjected to safety checks, and when the target battery module fails the safety check, firefighting operations are performed on the target battery module until the target battery module passes the safety check.

5. The method according to claim 4, characterized in that Performing safety testing on the target battery module, including: An infrared temperature detection is performed on the cabinet where the target battery module is located, and / or an insulation detection is performed on the outer surface of the cabinet where the target battery module is located.

6. The method according to claim 4, characterized in that The target battery module fails the safety test, including at least one of the following: The temperature of the storage cabinet where the target battery module is located is greater than a preset temperature threshold; An outer surface of the storage cabinet where the target battery module is located is not insulated.

7. The method according to claim 4, characterized in that The method further comprises: In the case where the target battery module passes the safety test, indication information indicating that the target battery module passes the safety test is sent to a management system in the battery energy storage system.

8. The method according to claim 2, characterized in that: The performing a firefighting operation on the target battery module based on the thermal runaway condition of the target battery module comprises: When the thermal runaway condition indicates that the thermal runaway of the target battery module is not effectively controlled, attempting to establish a communication connection with a management system of the target battery module; Based on the fire fighting strategy corresponding to the communication connection establishment result, a fire fighting operation is performed on the target battery module.

9. The method according to claim 8, characterized in that The fire fighting strategy corresponding to the communication connection establishment result is used to execute the fire fighting operation on the target battery module, including: In case of failure to establish the communication connection, immediately performing a firefighting operation on the target battery module; Instruct other mobile devices to perform firefighting operations on risk battery modules affected by thermal runaway of the target battery module.

10. The method according to claim 8, characterized in that The fire fighting strategy corresponding to the communication connection establishment result is used to execute the fire fighting operation on the target battery module, including: When the communication connection is successfully established, a cabinet door opening instruction is sent to the management system of the target battery module to open the cabinet door of the storage cabinet where the target battery module is located; Identify the location information of the fire center inside the storage cabinet where the target battery module is located; Based on the position information of the fire center, a firefighting operation is performed on the target battery module.

11. The method according to claim 10, characterized in that The performing a firefighting operation on the target battery module based on the location information of the fire center includes: Based on the position information of the fire center, the direction of the nozzle of the fire water pipe carried by the movable device is adjusted to spray water to the fire center.

12. The method according to claim 10, characterized in that The identifying the location information of the fire center inside the storage cabinet where the target battery module is located includes: Acquire an infrared image of the interior of the storage cabinet where the target battery module is located and operating information of each battery in the target battery module; Based on the infrared image of the interior of the storage cabinet where the target battery module is located and the operation information of each battery in the target battery module, the position information of the fire center inside the storage cabinet where the target battery module is located is identified.

13. The method according to claim 12, characterized in that The identifying the location information of the fire center inside the storage cabinet where the target battery module is located based on the infrared image inside the storage cabinet where the target battery module is located and the operation information of each battery in the target battery module includes: Based on the infrared image inside the storage cabinet where the target battery module is located and the operating information of each battery in the target battery module, multi-source fusion information of each battery partition of the target battery module is obtained; the multi-source fusion information of each battery partition includes pixel information of the battery partition in the infrared image and operating information of each battery in the battery partition; The multi-source fusion information of each battery partition of the target battery module is input into a pre-trained fire center identification model to obtain a fire center identification result output by the fire center identification model; the fire center identification result is used to indicate the location information of the battery partition where the fire center is located.

14. The method according to claim 1, characterized in that The firefighting operation includes at least one of the following: spraying water using a fire hose, spraying using a coolant, and spraying using a fire extinguishing agent.

15. The method according to claim 1, characterized in that The movable device is an AGV vehicle.

16. A fire fighting device of a battery energy storage system, characterized in that: The device comprises: A receiving module, used to receive a fire warning instruction for a target battery module in the battery energy storage system; The response module is used to respond to the fire warning instruction, move to the designated location indicated by the fire warning instruction, and perform a firefighting operation on the target battery module.

17. An electronic device, characterized in that: include: a processor and a memory for storing instructions executable by the processor; The processor is configured to execute the instructions to implement the method according to any one of claims 1 to 15.

18. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer instructions, and when the computer instructions are executed on a computer, the computer is caused to perform the method according to any one of claims 1 to 15.

19. A computer program product, characterized in that The computer program product comprises computer instructions, and when the computer instructions are executed on a computer, the computer is caused to perform the method according to any one of claims 1 to 15.

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