Vehicle fire extinguishing method, device, apparatus, system, storage medium and program product

Abstract

Embodiments of the present application provide a vehicle fire extinguishing method, device, equipment, system, storage medium and program product, the method comprising: after receiving the battery abnormal data sent by the battery management system of the risk vehicle, or after identifying that the risk vehicle performs sound and light alarm, determining the position of the risk vehicle; after forming a first isolation space by surrounding the risk vehicle with a single-vehicle cofferdam device based on the position of the risk vehicle, injecting fire extinguishing agent into the first isolation space, and detecting smoke and open fire in the first isolation space; if smoke or open fire is detected, forming a second isolation space by surrounding the area where the risk vehicle is located with a partition cofferdam device, and injecting fire extinguishing agent into the second isolation space. When the vehicle battery is abnormal, single-point early warning and precise control are realized by single-vehicle cofferdam, hierarchical control is realized by partition cofferdam, the fire source range is accurately locked, the spread of fire is avoided, and the efficient fire control demand of vehicle dense transportation scene is adapted.

Description

Technical Field

[0001] This application relates to the field of fire extinguishing technology, and in particular to a vehicle fire extinguishing method, device, equipment, system, storage medium, and program product. Background Technology

[0002] Against the backdrop of the rapid development of the new energy vehicle industry, the demand for cross-regional transportation of new energy vehicles continues to rise. Roll-on / roll-off ships, with their multi-deck three-dimensional loading and large transportation capacity, have become the core carrier for ocean and cross-water transportation of new energy vehicles.

[0003] New energy vehicle batteries, such as lithium-ion batteries, are prone to thermal runaway in transportation environments due to factors such as mechanical bumps and changes in ambient temperature. The densely parked layout of roll-on / roll-off ships makes it extremely easy for fires to spread rapidly and form a chain fire, posing a great threat to transportation safety and seriously threatening the lives and property of ships, cargo, and personnel on board.

[0004] To address the risk of battery thermal runaway fires during the transportation of new energy vehicles, specialized fire suppression systems are needed for transport vessels such as roll-on / roll-off (Ro-Ro) ships. However, most existing fire suppression systems only activate after detecting smoke or open flames, resulting in a certain lag. This makes it difficult to cope with the rapid spread of fires in densely packed vehicles like on Ro-Ro ships. Furthermore, they typically employ a full-cabin release mode, which cannot accurately isolate single-point ignition sources. This not only leads to a significant waste of extinguishing agents but also easily affects other normal transport areas within the ship's hold due to large-scale fire suppression operations. Consequently, these systems fail to meet the precise and efficient fire prevention and control requirements for new energy vehicle transportation on Ro-Ro ships. Summary of the Invention

[0005] The vehicle fire extinguishing method, device, equipment, system, storage medium, and program products provided in this application embodiment achieve early warning and risk vehicle location, realize a graded fire extinguishing strategy combining single-vehicle cofferdam and zoned cofferdam, accurately isolate single-point ignition sources, prevent fire spread, significantly reduce extinguishing agent consumption, do not affect other transportation areas, quickly respond to and handle fires, are suitable for dense transportation scenarios such as roll-on / roll-off ships, and improve the accuracy and efficiency of fire prevention and control.

[0006] In a first aspect, this application provides a vehicle fire extinguishing method, comprising: after receiving abnormal battery data sent by the battery management system of the risk vehicle, or after identifying the risk vehicle and triggering an audible and visual alarm, determining the location of the risk vehicle; after surrounding the risk vehicle with a single-vehicle cofferdam device to form a first-level isolation space based on the location of the risk vehicle, injecting fire extinguishing agent into the first-level isolation space, and detecting smoke and open flame in the first-level isolation space; if smoke or open flame is detected, after surrounding the zone where the risk vehicle is located with a zone cofferdam device to form a second-level isolation space, injecting fire extinguishing agent into the second-level isolation space.

[0007] In one possible implementation, injecting extinguishing agent into the first-level isolation space includes: controlling a foam generator in a single-vehicle cofferdam device to inject a first multiple of foam extinguishing agent into the first-level isolation space to submerge the chassis of the vehicle within the first-level isolation space.

[0008] In one possible implementation, injecting extinguishing agent into the second-level isolation space includes: if smoke is detected, controlling the foam generator in the zonal cofferdam device to sequentially inject a first multiple and a second multiple of foam extinguishing agent into the second-level isolation space to submerge the chassis of the vehicle within the second-level isolation space; the second multiple is greater than the first multiple; if open flame is detected, controlling the foam generator in the zonal cofferdam device to sequentially inject a first multiple, a second multiple, and a third multiple of foam extinguishing agent into the second-level isolation space to submerge the chassis of the vehicle within the second-level isolation space; the third multiple is greater than the second multiple.

[0009] In one possible implementation, the method further includes: while injecting foam extinguishing agent into the second-level isolation space through the foam generator in the control zone cofferdam device, monitoring the abnormal state of the second-level isolation space; if the abnormal state meets the conditions for loss of control, while continuing to inject foam extinguishing agent into the second-level isolation space, cutting off the electrical and ventilation systems in the second-level isolation space; after confirming that personnel have been evacuated from the area corresponding to the second-level isolation space, sealing the second-level isolation space and spraying carbon dioxide into the second-level isolation space until the open flame in the second-level isolation space is extinguished.

[0010] In one possible implementation, the method further includes: when the smoke dissipates or the open flame is extinguished and the temperature is below a preset safety threshold, stopping the spraying of foam extinguishing agent into the second-level isolation space, maintaining the first-level isolation space formed by the single-vehicle cofferdam device, and continuing to inject a first multiple of foam extinguishing agent into the first-level isolation space.

[0011] In one possible implementation, the first multiple is 5 to 10, the second multiple is 10 to 20 times the first multiple, and the third multiple is 40 to 80 times the first multiple.

[0012] In one possible implementation, the method further includes: detecting smoke and open flame in the area where the vehicle is loaded; if smoke or open flame is detected in the target zone, then injecting extinguishing agent into the second-level isolation space after surrounding the target zone with a zone dike device to form a second-level isolation space.

[0013] In one possible implementation, after receiving battery anomaly data sent by the battery management system of the risky vehicle, determining the location of the risky vehicle includes: after receiving battery anomaly data sent by the battery management system of the risky vehicle, obtaining the identification code of the risky vehicle; and based on the identification code of the risky vehicle and the stored correspondence between vehicle identification codes and parking space codes, determining the parking space code of the virtual parking space where the risky vehicle is located.

[0014] In one possible implementation, after identifying a risky vehicle and triggering an audible and visual alarm, determining the location of the risky vehicle includes: after the binocular camera identifies the audible and visual alarm signal of the risky vehicle, determining the parking space code of the virtual parking space where the risky vehicle is located based on the visual positioning information of the binocular camera.

[0015] In one possible implementation, the method further includes: generating a warning signal after receiving abnormal battery data sent by the battery management system of the risk vehicle, or after identifying the risk vehicle and triggering an audible and visual alarm; and controlling the fire-fighting facilities to a first-level braking state and the zoned containment device to a second-level braking state after detecting the warning signal, so as to surround the zone where the risk vehicle is located and inject fire extinguishing agent into the isolated space formed after the containment.

[0016] In one possible implementation, after controlling the multi-level cofferdam device to be in a secondary braking state, the method further includes: generating a start command for a single-vehicle cofferdam device based on the location of the at-risk vehicle, so as to control the single-vehicle cofferdam device to surround the at-risk vehicle and form a first-level isolation space; after detecting smoke or open flame in the first-level isolation space, generating a start command for a zone cofferdam device in the zone where the at-risk vehicle is located, so as to control the zone cofferdam device to surround the zone where the at-risk vehicle is located and form a second-level isolation space.

[0017] Secondly, embodiments of this application provide a vehicle fire extinguishing device, comprising: a risk vehicle positioning module, used to determine the location of a risk vehicle after receiving battery abnormality data sent by the battery management system of the risk vehicle, or after identifying the risk vehicle and triggering an audible and visual alarm; a primary isolation and fire extinguishing module, used to inject fire extinguishing agent into the primary isolation space after forming a primary isolation space by surrounding the risk vehicle with a single-vehicle cofferdam device based on the location of the risk vehicle, and to detect smoke and open flame in the primary isolation space; and a secondary isolation and fire extinguishing module, used to inject fire extinguishing agent into the secondary isolation space after forming a secondary isolation space by surrounding the zone where the risk vehicle is located with a zone cofferdam device if smoke or open flame is detected.

[0018] Thirdly, embodiments of this application provide an electronic device, including: a memory and a processor; the memory stores computer-executable instructions; the processor executes the computer-executable instructions stored in the memory, causing the processor to perform the first aspect and / or various possible implementations of the first aspect as described above.

[0019] Fourthly, this application provides a vehicle fire extinguishing system, including: an early warning unit, a control unit, and a multi-level containment device; the multi-level containment device includes a single-vehicle containment device and a zone containment device; the early warning unit is used to determine the location of the risky vehicle after receiving abnormal battery data sent by the battery management system of the risky vehicle, or after identifying the risky vehicle and triggering an audible and visual alarm; the control unit is used to inject fire extinguishing agent into the first-level containment space after surrounding the risky vehicle with the single-vehicle containment device to form a first-level isolation space based on the location of the risky vehicle, and to detect smoke and open flame in the first-level containment space; if smoke or open flame is detected, fire extinguishing agent is injected into the second-level containment space after surrounding the zone where the risky vehicle is located with the zone containment device to form a second-level isolation space.

[0020] In one possible implementation, there are multiple single-vehicle cofferdam devices, including fire hydrants, foam generators, fire hoses, single-vehicle cofferdams, and smoke and fire detection modules; when surrounding a risky vehicle, the single-vehicle cofferdam forms a barrier structure to physically isolate the risky vehicle; the smoke and fire detection module is used to detect smoke and open flames from the risky vehicle; there are multiple zone cofferdam devices, including isolation barrier structures deployed in corresponding zones, and at least one set of matching fire hydrants, foam generators, and fire hoses; the isolation barrier structures enclose the zone they are in or control the enclosure of the zone they are in to physically isolate the zone they are in.

[0021] Fifthly, embodiments of this application provide an electronic device, including: a memory and a processor; the memory stores computer-executable instructions; the processor executes the computer-executable instructions stored in the memory, causing the processor to perform the first aspect and / or various possible implementations of the first aspect as described above.

[0022] In a sixth aspect, embodiments of this application provide a computer-readable storage medium storing computer-executable instructions, which, when executed by a processor, are used to implement the first aspect and / or various possible implementations of the first aspect.

[0023] In a seventh aspect, embodiments of this application provide a computer program product, including a computer program that, when executed by a processor, implements the first aspect and / or various possible implementations of the first aspect.

[0024] The vehicle fire extinguishing method, apparatus, equipment, system, storage medium, and program products provided in this application trigger the fire extinguishing process upon the vehicle's battery malfunctioning or upon the vehicle issuing an audible and visual alarm, thus achieving early warning. By locating at-risk vehicles, precise fire source isolation through single-vehicle containment is achieved, improving the response speed and accuracy of fire extinguishing. When single-vehicle containment is insufficient to control the fire, such as in the presence of smoke or open flames, secondary physical isolation through zoned containment is further activated to prevent the fire from spreading. Through this multi-stage fire extinguishing strategy of single-vehicle containment and zoned containment, the waste of extinguishing agents is avoided while improving the targeting and effectiveness of fire prevention and control, adapting to the fire response needs of dense vehicle transportation scenarios. Attached Figure Description

[0025] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0026] Figure 1 A schematic diagram illustrating the scenario of transporting new energy vehicles by roll-on / roll-off ship, as provided in this application;

[0027] Figure 2 Flowchart of the vehicle fire extinguishing method provided in this application Figure 1 ;

[0028] Figure 3 A schematic diagram illustrating the single-vehicle cofferdam device provided in this application surrounding a vehicle at risk;

[0029] Figure 4 This application provides a schematic diagram of the layout of a zoned cofferdam device;

[0030] Figure 5 Flowchart of the vehicle fire extinguishing method provided in this application Figure 2 ;

[0031] Figure 6 This application provides an overall framework diagram of a vehicle fire extinguishing system;

[0032] Figure 7 A schematic diagram of the piping system of a vehicle fire extinguishing system provided in an embodiment of this application;

[0033] Figure 8 A schematic diagram of another vehicle fire suppression system provided in this application;

[0034] Figure 9 Flowchart of the vehicle fire extinguishing method provided in this application Figure 3 ;

[0035] Figure 10 A schematic diagram illustrating the process of controlling the fire protection facilities to be in a first-level braking state, as provided in this application;

[0036] Figure 11 A schematic diagram of the structure of the electronic device provided in this application.

[0037] Figure label:

[0038] 1-Foam liquid storage tank; 2-Storage tank level gauge; 3-Storage tank pressure gauge; 4-Foam liquid electric valve; 5-Foam liquid supply pump;

[0039] 6-Foam liquid delivery pressure gauge; 7-Foam liquid pipeline flow meter;

[0040] 8-Fire water main pump; 9-Fire water electric valve; 10-Fire water first pressure gauge; 11-Fire water first flow meter; 12-Fire water booster pump; 13-Fire water second pressure gauge; 14-Fire water second flow meter; 15-Mixed liquid zone electric valve; 16-Fire hydrant electric valve; 17-Fireproof roller shutter; 18-Fire hydrant; 19-Foam generator; 20-Vehicle; 21-Fire hose; 22-Single vehicle cofferdam; 23-Infrared camera; 24-High-risk vehicle; 25-Portable foam bucket; 26-Three-way solenoid valve; 27-Proportional mixer; 28-Pipeline.

[0041] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0042] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0043] First, let me explain the terms used in this application:

[0044] Roll-on / Roll-off Ship: A type of vessel specifically designed for transporting complete vehicles. Vehicles can be driven directly in and out through openings on the side, bow, or stern and boarding ramps. It has multi-level vehicle parking decks, large loading capacity, and is the core carrier for ocean and cross-water transportation of new energy vehicles.

[0045] Cofferdam: An isolation enclosure structure used for fire prevention and control. It forms a closed / semi-closed isolation space by enclosing the fire source to achieve physical isolation. In this application, cofferdams are divided into single-vehicle cofferdams and zone cofferdams. Single-vehicle cofferdams are used to physically isolate a single vehicle, while zone cofferdams are used to isolate a zone where multiple vehicles are located, such as a part of a first deck.

[0046] The vehicle fire extinguishing solution provided in this application is mainly applicable to transportation scenarios involving dense loading of new energy vehicles, especially suitable for scenarios involving the transportation of new energy vehicles by roll-on / roll-off ships over oceans or across waterways. It can also be extended to other vehicle transport ships, enclosed new energy vehicle transport trailers, and automated vehicle storage warehouses, among other scenarios with similar dense vehicle parking. The following detailed description uses the transport of new energy vehicles by roll-on / roll-off ships as the core application scenario, with corresponding application scenario diagrams shown below. Figure 1 As shown.

[0047] Figure 1 This application provides a schematic diagram of a scenario for transporting new energy vehicles by roll-on / roll-off (Ro-Ro) vessel, as shown below. Figure 1 As shown, the roll-on / roll-off (Ro-Ro) vessel features multi-level enclosed vehicle parking decks, with each deck densely packed with new energy vehicles awaiting transport. Each new energy vehicle is equipped with a Battery Management System (BMS) that can collect data such as battery voltage, temperature, and state of charge (SOC) in real time. The Ro-Ro vessel is equipped with fire extinguishing equipment and a fire control center, providing basic hardware support for fire prevention and control during the transportation of new energy vehicles. The fire extinguishing equipment system may include fire hydrants, fire hoses, foam generators, and foam liquid storage tanks. Figure 1 The layout of the components in the basic fire protection system shown is for illustrative purposes only.

[0048] During the transport of new energy vehicles by roll-on / roll-off (Ro-Ro) ships, the batteries of these vehicles are highly susceptible to thermal runaway due to factors such as the ship's mechanical turbulence, changes in temperature and humidity in the marine environment, and battery malfunctions. The enclosed cabin environment and densely parked vehicles on Ro-Ro ships can cause fires to spread rapidly once they start, easily leading to a chain reaction of fires.

[0049] Current traditional fire prevention and control solutions for this type of scenario rely solely on the basic fire protection system of the ro-ro ship for routine fire suppression, which has significant technical shortcomings. Firstly, traditional solutions typically only initiate fire suppression operations after detecting obvious fire signals such as smoke or open flames, failing to intervene in advance during battery malfunctions. This results in a significant delay in response, making it difficult to effectively contain the spread of fire and failing to meet the fire prevention and control needs of ro-ro ships transporting high-density new energy vehicles. Secondly, traditional fire protection systems often employ a method of releasing extinguishing agents throughout the entire cabin or floor, lacking precise fire source location capabilities and targeted isolation measures. This leads to a significant waste of extinguishing agents and can also disrupt normal transport areas due to large-scale fire suppression operations.

[0050] Based on this, this application proposes a vehicle fire extinguishing solution, which effectively solves the technical defects of the above-mentioned traditional solutions through the design of early warning, precise positioning and graded isolation fire extinguishing, and is suitable for the fire prevention and control needs of dense transportation scenarios of new energy vehicles such as roll-on / roll-off ships.

[0051] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0052] Figure 2 Flowchart of the vehicle fire extinguishing method provided in this application Figure 1 ,like Figure 2 As shown, the method includes:

[0053] Step S201: After receiving abnormal battery data sent by the battery management system of the risk vehicle, or after identifying the risk vehicle and triggering an audible and visual alarm, determine the location of the risk vehicle.

[0054] The vehicle in question is a new energy vehicle. The vehicle's battery management system (BMS) is the core control system of the battery pack, capable of monitoring or collecting battery operating parameters such as voltage, current, temperature, remaining charge, and battery health. Abnormal battery data can indicate abnormalities in battery voltage or temperature, such as excessively high battery temperature, sudden voltage fluctuations, or excessively low battery voltage.

[0055] After detecting a vehicle battery anomaly, the BMS wakes up the vehicle and uploads the collected battery anomaly data. At this point, the vehicle is marked as a risk vehicle. The location of a risk vehicle can be represented by the code of the virtual parking space where the risk vehicle is located, or by spatial coordinates or two-dimensional plane coordinates.

[0056] In some embodiments, after the BMS detects an abnormality in the vehicle battery, such as a battery temperature higher than a preset temperature or a battery voltage lower than a preset voltage, it can wake up the vehicle and control it to issue an audible and visual alarm. In this case, the vehicle is designated as a risk vehicle. The audible and visual alarm may include only a sound alarm, only a light alarm, or both. Specific alarm methods include, but are not limited to, hazard lights, illuminating the malfunction indicator light, and sounding the horn. The vehicle fire suppression system can identify the presence of a risk vehicle with an audible and visual alarm using cameras, microphones, etc. If such a vehicle is detected, its location can be determined.

[0057] At the same time as or after identifying a risky vehicle that has triggered an audible and visual alarm, the location of the risky vehicle that triggered the audible and visual alarm can be determined using sound localization technology and / or visual localization technology, such as its planar location on the deck of the same level.

[0058] In other embodiments, after the BMS detects an abnormality in the vehicle's (i.e., the vehicle at risk) battery, it can send the collected battery abnormality data to the vehicle fire suppression system or its related modules, such as the control unit, through a communication link established with the fire suppression system. After receiving the battery abnormality data, the vehicle fire suppression system or its related modules can locate the vehicle and obtain the location of the vehicle at risk.

[0059] The system can determine the virtual parking space of a risky vehicle by using the identification code of the risky vehicle bound to the battery anomaly data, and the virtual parking space bound to the identification code of each vehicle during the parking phase, thereby achieving the location of the risky vehicle.

[0060] In some embodiments, after the BMS reports a vehicle battery malfunction or identifies a vehicle and issues an audible and visual alarm, in addition to determining the location of the vehicle (i.e., the at-risk vehicle), it can also generate a warning signal to control the linkage of fire-fighting facilities, infrastructure, etc., to put them in a ready state for subsequent containment and fire-fighting operations.

[0061] Step S202: After forming a first-level isolation space by surrounding the risk vehicle with a single-vehicle cofferdam device based on the location of the risk vehicle, fire extinguishing agent is injected into the first-level isolation space, and smoke and open flame detection is performed on the first-level isolation space.

[0062] The single-vehicle cofferdam device includes a containment structure for enclosing a single vehicle, i.e., a single at-risk vehicle, called a single-vehicle cofferdam, and fire extinguishing components for injecting extinguishing agents. The extinguishing agent can be foam extinguishing agent, water-based extinguishing agent, etc. Taking foam extinguishing agent as an example, the fire extinguishing components in the single-vehicle cofferdam device can include fire hydrants, fire hoses, and foam generators. The first-level isolation space is the space formed after physically isolating the single at-risk vehicle.

[0063] After determining the location of the at-risk vehicle, its location, such as its virtual parking space, can be displayed or output. This allows relevant personnel to operate a single-vehicle containment device to surround the at-risk vehicle based on the location displayed or received by its terminal, thereby creating a first-level isolation space.

[0064] After determining the location of the at-risk vehicle, single-vehicle containment devices can be automatically controlled based on the location of the at-risk vehicle. These devices include the single-vehicle containment device closest to the at-risk vehicle, and single-vehicle containment devices adapted to the at-risk vehicle or its location, to surround the at-risk vehicle and form a first-level isolation space.

[0065] For example, Figure 3A schematic diagram of the single-vehicle cofferdam device provided in this application surrounding the at-risk vehicle, as shown below. Figure 3 As shown, the single-vehicle cofferdam device includes a fire hydrant 18, a foam generator 19, a fire hose 21, and a single-vehicle cofferdam 22.

[0066] Single-vehicle cofferdams are used to isolate at-risk vehicles from surrounding vehicles using a barrier. They can be deployed in various ways, such as inflatable, roller-type, or accordion-type, allowing for rapid deployment by firefighters upon arrival. Display methods also include roller shutter-type, where the cofferdam is moved to the area of ​​the at-risk vehicle via a top sliding rail, and then the shutter slides down to surround the vehicle, creating a first-level isolation space. Alternatively, the shutter can be magnetically attached to the deck of a roll-on / roll-off ship using a bottom magnetic device, effectively preventing extinguishing agents such as foam from leaking out through bottom openings.

[0067] The single-vehicle cofferdam may further include detection devices, such as an infrared camera 23, to detect whether there is smoke or open flame in the first-level isolation space formed by surrounding the at-risk vehicle.

[0068] After the risky vehicle is enclosed by a single-vehicle cofferdam to form the first-level isolation space, the fire extinguishing agent generator, such as a foam generator, connected to the fire hydrant in the single-vehicle cofferdam device is controlled to spray foam into the first-level isolation space.

[0069] In addition to detecting open flames and smoke in the first-level isolation space, it can also detect open flames and smoke in the entire area where vehicles are parked. Thus, even if no abnormal vehicle battery is detected, that is, no abnormal battery data is generated by the BMS and no vehicle with audible and visual alarms is identified, if open flames or smoke are detected, a zoned containment device can still be used to surround the zone where open flames or smoke are detected, such as the target zone, to form a second-level isolation space. Fire extinguishing agents, such as rice-based fire extinguishing agents or water-based fire extinguishing agents, can be injected into the second-level isolation space.

[0070] In step S203, if smoke or open flame is detected, after the risk vehicle is surrounded by the zoned dike device to form a second-level isolation space, fire extinguishing agent is injected into the second-level isolation space.

[0071] The vehicle transport carrier, such as a roll-on / roll-off ship, comprises multiple compartments, each large enough to accommodate multiple vehicles. The compartmentalized containment system includes enclosure structures for enclosing the compartments, such as fireproof partitions, fireproof roller shutters, and movable fireproof barriers, as well as fire extinguishing components.

[0072] The area where the vehicle transport vehicle is loaded can be pre-divided into multiple zones, each zone corresponding to a zone containment device. At least part of the enclosure structure of the zone containment device is a movable component. The control methods of the movable component include, but are not limited to, electric control, hydraulic control, pneumatic control, and manual control. It can operate under the control of the vehicle fire extinguishing system or its control unit, or be manually operated, thereby enclosing the corresponding zone to form a closed or semi-closed second-level isolation space to prevent fire, smoke, etc. from spreading to adjacent zones.

[0073] If smoke or open flame is detected in the first-level isolation space, after confirming the evacuation of personnel from the zone containing the first-level isolation space, the control zone containment device is used to surround the zone containing the at-risk vehicle, forming a second-level isolation space. After the zone containment device surrounds the zone containing the at-risk vehicle and forms the second-level isolation space, the fire extinguishing components of the control zone containment device inject extinguishing agents, such as foam extinguishing agents, into the second-level isolation space.

[0074] The confirmation signal of personnel evacuation within a zone can be used as a prerequisite for activating the zone's cofferdam device. This can be logically linked with the control of the zone's enclosure structure. Only after confirming the evacuation of personnel within the zone can the enclosure structure of the zone's cofferdam device be allowed to enclose the zone, forming a second-level isolation space to ensure the safety of personnel.

[0075] For example, Figure 4 This application provides a schematic diagram of the layout of a zoned cofferdam device, as shown below. Figure 4 As shown, the zoned cofferdam device includes a fireproof roller shutter 17, a fire hydrant 18, a fire hose (not shown in the figure), and a foam generator 19.

[0076] See also Figure 4 A single zone of the vehicle transport vehicle is large enough to accommodate multiple vehicles (20 vehicles in total). The vehicles are densely arranged in a matrix within the zone. The fireproof roller shutters of the zone containment device are installed along the corresponding zone boundary and can automatically close under the control of the vehicle fire extinguishing system or its control unit, thus enclosing the zone to form a second-level isolation space. Fire hydrants and foam generators are distributed within the zone at preset intervals. Each fire hydrant is connected to the corresponding foam generator through a fire hose, which can continuously spray foam extinguishing agent into the zone after the second-level isolation space is formed, thereby achieving overall handling of fires within the zone.

[0077] The vehicle fire extinguishing method provided in this application triggers the fire extinguishing process upon the vehicle's battery malfunctioning or upon the vehicle issuing an audible and visual alarm, thus achieving early warning. By locating at-risk vehicles, it achieves precise fire source isolation through single-vehicle containment, improving the response speed and accuracy of fire extinguishing. When single-vehicle containment is insufficient to control the fire, such as when smoke or open flames are present, it further activates zoned containment to form a secondary physical isolation, preventing the fire from spreading. Through this multi-stage fire extinguishing strategy of single-vehicle containment and zoned containment, it avoids the waste of extinguishing agents while improving the targeting and effectiveness of fire prevention and control, adapting to the fire response needs of densely trafficked vehicle transportation scenarios.

[0078] Optionally, the method further includes: detecting smoke and open flame in the area where the vehicle is loaded; if smoke or open flame is detected in the target zone, then injecting extinguishing agent into the second-level isolation space after surrounding the target zone with a zone dike device to form a second-level isolation space.

[0079] Optionally, the method further includes: detecting smoke and open flame in the area where the vehicles are loaded; if smoke or open flame is detected in the target zone, or if the number of at-risk vehicles in the target zone is greater than a preset threshold, then after surrounding the target zone with a zone dike device to form a second-level isolation space, injecting fire extinguishing agent into the second-level isolation space.

[0080] Among them, the risk vehicle is the vehicle that has a battery abnormality, which can be the vehicle that sends battery abnormality data or triggers an audible and visual alarm by the BMS.

[0081] The vehicle fire suppression system increments the number of at-risk vehicles in the corresponding zone by 1 whenever it receives battery anomaly data from a new vehicle's BMS or identifies a new vehicle that triggers an audible and visual alarm.

[0082] The preset threshold can be a default value, such as 1, 2, 3 or other values, or it can be determined based on the vehicle density within the transport vehicle zone, the zone area, the fire prevention and control level, etc.

[0083] When the number of at-risk vehicles in a certain zone, such as a target zone, exceeds a preset threshold for that zone, it indicates that there are too many abnormal vehicles in that zone, which could easily trigger a chain fire. Therefore, when the number of at-risk vehicles in the target zone exceeds the preset threshold, the target zone is surrounded by the enclosure structure of the zone's containment dike device to isolate the target zone and form a second-level isolation space. Subsequently, the fire extinguishing components of the zone's containment dike device are used to inject fire extinguishing agent into the second-level isolation space.

[0084] Smoke and open flame detection in the area where the vehicle is loaded or in the aforementioned first-level isolation space can be achieved through multi-sensor fusion detection or through visual sensors and visual recognition algorithms.

[0085] For example, smoke and open flame detection can be achieved using a photoelectric smoke detector and an infrared camera, respectively. The photoelectric smoke detector is used to detect the smoke concentration in an area or space. When the smoke concentration reaches a certain threshold, such as 0.5 dB / m³, a smoke alarm signal is triggered to indicate that smoke has been detected. The infrared camera is used to detect specific infrared radiation emitted by an open flame. When this infrared radiation is detected, an open flame warning signal is triggered to indicate that an open flame has been detected.

[0086] It can use binocular cameras, combined with pre-stored visual features such as open flames and smoke, to identify whether there are open flames or smoke in a space or area, and locate the position of the detected open flames or smoke.

[0087] Through the aforementioned steps, when the BMS fails to detect battery abnormalities in a timely manner, fires can be detected promptly through area open flame and smoke detection. At the same time, when there are many abnormal vehicles in a zone, zone containment and fire suppression can be initiated in advance, effectively reducing the probability of chain fires, improving the comprehensiveness of fire suppression, and enhancing the safety of vehicle transportation.

[0088] Figure 5 Flowchart of the vehicle fire extinguishing method provided in this application Figure 2 In this embodiment Figure 2 Based on the examples, the vehicle fire extinguishing method is described in detail, such as... Figure 5 As shown, the method includes:

[0089] Step S501: After receiving abnormal battery data sent by the battery management system of the risk vehicle, or after identifying the risk vehicle and triggering an audible and visual alarm, determine the location of the risk vehicle.

[0090] The early warning component can receive abnormal battery data sent by the BMS, such as cell voltage below 2.5V or battery temperature above 60℃. After receiving the abnormal battery data, the early warning component can generate an early warning signal to trigger subsequent processes, such as controlling fire-related devices to pre-act or act through the control unit.

[0091] After detecting a battery abnormality, the BMS can wake up the vehicle and control it to emit a preset frequency of audible and visual alarm signals, such as 5 flashes of the hazard lights per second and 3 honks of the horn per second. Multiple binocular cameras deployed on the deck of the ship can then identify the audible and visual alarm signals and generate a warning signal.

[0092] Optionally, after receiving battery anomaly data sent by the battery management system of the risk vehicle, the location of the risk vehicle is determined, including: after receiving battery anomaly data sent by the battery management system of the risk vehicle, obtaining the identification code of the risk vehicle; and based on the identification code of the risk vehicle and the stored correspondence between vehicle identification codes and parking space codes, determining the parking space code of the virtual parking space where the risk vehicle is located.

[0093] When a vehicle is parked in the area corresponding to the transport vehicle, its identification code, such as the VIN (Vehicle Identification Number), can be obtained by scanning the vehicle. This identification code is then linked to the virtual parking space where the vehicle is parked. Subsequently, the identification code of the risky vehicle can be used to determine the virtual parking space where the risky vehicle is located, for example, to obtain the parking space code of the virtual parking space, thereby realizing the location of the risky vehicle.

[0094] The vehicle identification number can be provided by the vehicle's BMS, for example, carried in battery anomaly data.

[0095] Taking a roll-on / roll-off ship as an example, after each vehicle is loaded onto the ship, its VIN code is scanned to obtain the vehicle's VIN code. Once all vehicles on a certain deck are parked, the entire virtual parking space in that deck is automatically assigned based on the size of the parked vehicles. The scanned VIN code is then bound to the virtual parking space where the vehicle is parked. In the event of a vehicle battery malfunction, the VIN code of the vehicle can be used to determine the virtual parking space where the vehicle is parked, thus obtaining the parking space code of the virtual parking space where the at-risk vehicle is located.

[0096] By obtaining the vehicle identification code after receiving abnormal battery data and combining it with the pre-stored correspondence between vehicle identification codes and parking space codes, the system can quickly and accurately determine the virtual parking space where the at-risk vehicle is located, achieving automatic and precise positioning of abnormal vehicles without the need for additional complex positioning devices, thus improving the response speed and positioning reliability of the vehicle fire extinguishing system.

[0097] Optionally, after identifying a risky vehicle and triggering an audible and visual alarm, the location of the risky vehicle is determined, including: after the binocular camera identifies the audible and visual alarm signal of the risky vehicle, the parking space code of the virtual parking space where the risky vehicle is located is determined based on the visual positioning information of the binocular camera.

[0098] If the BMS wakes up the vehicle and controls it to issue an audible and visual warning after determining that the battery is abnormal, it can collect the vehicle's audible and visual alarm signals through a binocular camera. By utilizing the ranging and positioning capabilities of binocular vision, combined with the layout of preset virtual parking spaces, it can determine the virtual parking space code corresponding to the risky vehicle, thereby completing the location of the risky vehicle.

[0099] By using binocular cameras to identify audible and visual alarm signals and perform visual positioning, abnormal vehicles (i.e., risky vehicles) can be identified independently and quickly, and their parking space codes can be determined, even when the vehicle's BMS has not uploaded abnormal battery data. Combined with the aforementioned BMS proactive reporting of abnormalities, this forms a dual positioning redundancy, improving the system's positioning reliability and response speed in complex scenarios.

[0100] Step S502: Based on the location of the at-risk vehicle, a first-level isolation space is formed by surrounding the at-risk vehicle with a single-vehicle cofferdam device.

[0101] Based on the location of the at-risk vehicle, the single-vehicle cofferdam device can be controlled to move to the area where the at-risk vehicle is located. Once in place, the single-vehicle cofferdam can be controlled to enclose the at-risk vehicle, forming the first-level isolation space.

[0102] For example, taking a single-vehicle cofferdam as a roller shutter, the roller shutter can be moved to the area where the at-risk vehicle is located via the top slide rail and slide down to surround the at-risk vehicle.

[0103] For example, the single-vehicle containment dike uses multiple sections of foldable fireproof panels, which are normally retracted and stored on the side of the parking space; after the parking space where the at-risk vehicle is located is determined, the foldable panels on the side of the parking space are controlled to unfold, rotate and close in sequence to quickly wrap around the at-risk vehicle.

[0104] In some embodiments, a manual operation can be used, where firefighters or operators use single-vehicle dikes to enclose the at-risk vehicles and form a first-level isolation space, based on the location of the at-risk vehicles.

[0105] Step S503: Control the foam generator in the single-vehicle cofferdam device to inject a first multiple of foam extinguishing agent into the first-level isolation space to submerge the chassis of the vehicle in the first isolation space.

[0106] The first multiple is a configurable parameter, and its value range can be 5 to 10.

[0107] The first-expansion foam extinguishing agent is a low-expansion foam with good fluidity and strong coverage. It can quickly wet the battery pack and chassis, suppress thermal runaway by continuously absorbing heat and cooling down, while isolating oxygen.

[0108] This step corresponds to the battery anomaly stage, typically before smoke or open flames appear. Only the BMS detects the battery anomaly, representing an early warning stage. At the battery anomaly point, the fire extinguishing measure is to use a low-expansion (first-order) foam extinguishing agent to submerge the chassis of the at-risk vehicle. This low-expansion foam extinguishing agent has a high water content, good fluidity, and low foam volume, allowing it to quickly soak and cover the chassis and battery pack area of ​​the at-risk vehicle. It significantly reduces the core battery temperature by absorbing a large amount of heat, while simultaneously forming a dense foam layer that effectively isolates oxygen from the battery, inhibiting thermal runaway chain reactions. Furthermore, it avoids obstructing the operating space within the first-level isolation area due to excessive foam volume.

[0109] After the single-vehicle cofferdam device encloses the at-risk vehicle, the foam generator of the single-vehicle cofferdam device is activated to inject foam extinguishing agent into the first-level isolation space formed by the enclosure.

[0110] The foam generator of the single-vehicle cofferdam device can be controlled to automatically move to the side or under the chassis of the at-risk vehicle, ensuring that the spray direction accurately covers the chassis. After the foam generator is in place, it is activated to continuously inject the first-times-multiple-fold amount of foam extinguishing agent into the first-level isolation space until the chassis of the at-risk vehicle is completely submerged, forming a covering layer to achieve cooling and oxygen isolation.

[0111] After the chassis of the at-risk vehicle is completely submerged, continue injecting the first-times-high volume of foam extinguishing agent, at least for the initial period. If no smoke or open flame is detected during this time, the fire at the at-risk vehicle is considered extinguished, and the vehicle can be removed from the at-risk vehicle list for that zone. The at-risk vehicle list is used to record at-risk vehicles within the corresponding zone.

[0112] Step S504: Detect smoke and open flame in the first-level isolation space.

[0113] After the first-level isolation space is established, smoke and open flame detection is continuously carried out in the first-level isolation space in order to detect changes in the fire situation in a timely manner.

[0114] In step S505, if smoke is detected, after the risk vehicle is surrounded by the partitioned cofferdam device to form a second-level isolation space, the foam generator in the partitioned cofferdam device is controlled to inject a first multiple and a second multiple of foam extinguishing agent into the second-level isolation space in sequence to submerge the chassis of the vehicle in the second-level isolation space.

[0115] The second multiple is greater than the first multiple. The second multiple is a median multiple, such as 100, and is a configurable parameter. The second multiple can be determined based on factors such as the area of ​​the zone and the density of vehicles within the zone.

[0116] For example, the second multiple can be 10 to 20 times the first multiple.

[0117] If the aforementioned firefighting measures fail to suppress the battery anomaly in time, leading to smoke in the first isolation space (i.e., the fire enters the smoke stage), it indicates that battery thermal runaway has further developed, and relying solely on low-expansion foam coverage at the single-vehicle level is insufficient to contain the risk spread. In this case, it is necessary to promptly enclose the zone containing the at-risk vehicle using zoned containment devices, such as lowering fireproof roller shutters or closing movable fireproof partitions, thereby creating a second-level isolation space to prevent the spread of smoke and fire to vehicles in adjacent zones.

[0118] After the second-level isolation space is formed, the foam generator in the fire extinguishing component of the zoned cofferdam device is activated, and the foam extinguishing agent is injected in sequence according to the order of first multiple and then second multiple, that is, the first multiple and second multiple of foam extinguishing agent are injected into the second-level isolation space in sequence.

[0119] Low-expansion foams, with their high water content and good fluidity, can quickly diffuse within a zone, enabling rapid response. Medium-expansion foams, on the other hand, have a larger foam volume and a thicker covering layer, forming a dense, thick foam covering layer that enhances the oxidative insulation effect.

[0120] By designing a distribution spraying strategy that first uses the first expansion number of foam and then the second expansion number, the fire can be quickly controlled by taking advantage of the rapid diffusion and efficient cooling of low expansion number foam, while the fire can be effectively controlled by taking advantage of the strong oxygen isolation of medium expansion number foam.

[0121] The foam generators in the zoned cofferdam system can be fixedly deployed at specific locations within a zone. When injecting foam extinguishing agent, they can achieve coverage of different areas and parking spaces within the zone through rotating nozzles, adjustable-angle nozzles, and multi-directional spray nozzles. Priority can be given to injecting foam extinguishing agent into the area where the at-risk vehicle is located and its adjacent areas.

[0122] In step S506, if an open flame is detected, after the risk vehicle is surrounded by the partitioned cofferdam device to form a second-level isolation space, the foam generator in the partitioned cofferdam device is controlled to inject the first, second, and third multiples of foam extinguishing agent into the second-level isolation space in sequence to submerge the chassis of the vehicle in the second-level isolation space.

[0123] The third multiple is greater than the second multiple. The third multiple is a high multiple, such as 300 to 500 times, and is a configurable parameter that can also be determined based on the density of parked vehicles.

[0124] If an open flame is detected within the first-level isolation space, it indicates that the battery has entered the open flame stage and is experiencing a severe thermal runaway reaction. Single-vehicle containment is insufficient to suppress the fire; it is necessary to promptly enclose the zone containing the at-risk vehicle using zone containment devices, such as lowering the fireproof roller shutters or closing movable fireproof partitions, thereby creating a second-level isolation space to prevent the spread of smoke and fire to vehicles in adjacent zones. Subsequently, a three-stage progressive foam spraying strategy is initiated, spraying foam in a sequence from low to high expansion, i.e., from low expansion (first expansion), then medium expansion (second expansion), and finally high expansion (third expansion). The foam generator of the zone containment device is controlled to spray foam extinguishing agent into the zones in stages.

[0125] If an open flame is detected after smoke, thus creating a second-level isolation space, the foam injection strategy can be adjusted to inject the first, second, and third multiples of foam extinguishing agent sequentially. If the foam generator is injecting the second multiple of foam extinguishing agent when an open flame is detected, the injection can be switched to the third multiple after a certain time or amount of the second multiple of foam extinguishing agent has been injected.

[0126] High-expansion foam extinguishing agents have a large foaming volume and strong filling energy, which can quickly fill the secondary isolation space to achieve suffocation extinguishing and complete the suppression of open flames.

[0127] Optionally, the first multiple is 5 to 10, the second multiple is 10 to 20 times the first multiple, and the third multiple is 40 to 80 times the first multiple.

[0128] It should be noted that if smoke or open flame is detected after the single-vehicle cofferdam device has contained the at-risk vehicle and injected fire extinguishing agent, the single-vehicle cofferdam device will continue to operate while the zone cofferdam device is working, that is, it will continue to inject the first multiple of foam fire extinguishing agent into the first-level isolation space.

[0129] This step involves progressively spraying foam at three levels to achieve rapid dimensional reduction, fire control and flame retardation, and full-space suffocation in stages. It is suitable for the open flame combustion stage of batteries and can quickly and thoroughly extinguish open flames in enclosed areas, reducing losses.

[0130] As can be seen from the aforementioned steps, the foam generator of the single-vehicle cofferdam device sprays a low-expansion foam extinguishing agent, hence its smaller diameter. In contrast, the foam generator of the zoned cofferdam device has a larger diameter to spray a medium- or high-expansion foam extinguishing agent.

[0131] Step S507: While the foam generator in the control zone cofferdam device injects foam extinguishing agent into the second-level isolation space, monitor the abnormal state of the second-level isolation space.

[0132] Among them, the abnormal state is used to characterize the degree of fire development in the second-level isolation space, which may include smoke concentration, open flame intensity, temperature change, open flame area, number of burning vehicles, etc., so as to determine whether the fire has been effectively controlled through the abnormal state.

[0133] During the smoke or open flame stage, i.e. after the foam generator of the zoned cofferdam device is activated, fire data of the second-level isolation space is collected simultaneously. Based on the changes in fire data over a period of time, the abnormal state is determined.

[0134] Step S508: If the abnormal state meets the conditions for loss of control, while continuing to inject a third multiple of foam extinguishing agent into the second-level isolation space, cut off the electrical and ventilation systems in the second-level isolation space. After confirming that the personnel in the corresponding area of ​​the second-level isolation space have been evacuated, seal the second-level isolation space and spray carbon dioxide into the second-level isolation space until the open flame in the second-level isolation space is extinguished.

[0135] Among them, the abnormal state that meets the conditions for being out of control refers to the conditions corresponding to any of the following situations: the fire continues to expand, the open flame is not effectively suppressed, the temperature continues to rise, and the smoke concentration continues to increase.

[0136] For example, runaway conditions may include an increase in the number of burning vehicles, or the failure to reduce the open flame area, temperature, or smoke concentration after a period of time, such as a second time, following the injection of foam extinguishing agent.

[0137] If the abnormal situation meets the conditions for loss of control, i.e., the fire is out of control, then while continuing to inject foam extinguishing agent into the foam generator of the controlled zone cofferdam, for example, injecting a third multiple of the foam extinguishing agent, the electrical and ventilation systems in the second-level isolation space should be shut off to prevent electrical short circuits from exacerbating the fire and to prevent the ventilation system from supplying oxygen to fuel combustion. After confirming that all personnel in the second-level isolation space have been evacuated, the second-level isolation space should be completely sealed, for example, by sealing off the ship's cabin. Then, water-based extinguishing agent should be sprayed into the sealed second-level isolation space. Utilizing the asphyxiating and cooling properties of carbon dioxide, combined with high-expansion foam, a composite fire extinguishing effect can be achieved to further enhance the fire extinguishing intensity and extinguish the out-of-control fire.

[0138] Each zone can be equipped with carbon dioxide fire extinguishing equipment, such as carbon dioxide storage tanks, carbon dioxide delivery pipelines, carbon dioxide nozzles, control valves, etc., to extinguish the fire using a combination of foam and carbon dioxide after the fire gets out of control.

[0139] Step S509: When the smoke dissipates or the open flame is extinguished and the temperature is below the preset safety threshold, stop spraying foam extinguishing agent into the second-level isolation space, maintain the first-level isolation space formed by the single-vehicle cofferdam device, and continue to inject the first multiple of foam extinguishing agent into the first-level isolation space.

[0140] After detecting smoke or open flame, and following the fire extinguishing strategy corresponding to step S506 or S507, if the smoke dissipates or the open flame is extinguished and the temperature is below a preset safety threshold (e.g., 60℃, 55℃, 50℃), or if no smoke or open flame is detected for several consecutive cycles, and the temperature of the second-level isolation space is below the preset safety threshold in the last cycle, then the surface fire is effectively controlled. At this point, the zonal containment device can be stopped. For example, the second-level isolation space formed by the zonal containment device can be released, and the spraying of foam extinguishing agent into the second-level isolation space can be stopped; that is, the fire extinguishing components in the zonal containment device can be controlled to stop operating. Simultaneously, to prevent reignition, the single-vehicle containment device must continue operating, i.e., the formed first-level isolation space must be maintained, and the foam generator in the single-vehicle containment device must continue to inject a first-time multiple of foam extinguishing agent into the first-level isolation space, for example, continuing injection for a third time. Afterward, the corresponding risk vehicle is removed from the list of risk vehicles.

[0141] In this implementation, by flooding the chassis of the at-risk vehicle with a first-fold amount of foam extinguishing agent, the battery pack can be rapidly cooled and oxygen-isolated in the early stages of battery anomalies, suppressing battery thermal runaway and achieving precise control at the single-vehicle level, thus improving early response efficiency and safety. Injecting progressively increasing amounts of foam according to different fire conditions, such as smoke and open flames, allows for tiered response to adapt to the fire's development, ensuring effective extinguishing and preventing the fire from spreading. By assessing the fire's uncontrollability, timely detection of out-of-control fires, combined with foam and carbon dioxide combined extinguishing, allows for rapid sealing of spaces and cutting off oxygen and power supplies in extreme fire situations, significantly improving the ability to extinguish out-of-control fires and ensuring the overall safety of the vehicle. After the fire is extinguished, stopping zoned spraying while maintaining single-vehicle containment spraying avoids wasting extinguishing agents and allows for continuous cooling of the at-risk vehicle to prevent reignition, improving overall economy and safety.

[0142] Optionally, the method further includes generating a warning signal after receiving abnormal battery data sent by the battery management system of the risky vehicle, or after identifying the risky vehicle and triggering an audible and visual alarm.

[0143] The vehicle fire suppression system may include a warning unit, in which a warning component is used to receive battery anomaly data sent by the BMS of a parked vehicle and generate a warning signal, or after the BMS detects a vehicle battery anomaly and wakes up the vehicle to issue an audible and visual alarm, the warning unit identifies the vehicle that has issued the audible and visual alarm and generates a warning signal based on the identification result.

[0144] The warning signal can serve as a pre-activation signal for subsequent fire-fighting facilities and fire-extinguishing components, so that the fire-fighting facilities and fire-extinguishing components can enter the corresponding braking state, so that after the corresponding isolation space is formed, the equipment or components can be quickly activated to extinguish the fire.

[0145] Optionally, the method further includes: after detecting a warning signal, controlling the fire-fighting facilities to a first-level braking state and controlling the zoned containment device to a second-level braking state, so as to enclose the zone where the at-risk vehicle is located, and injecting fire extinguishing agent into the isolated space formed after enclosure.

[0146] Among them, the fire-fighting facilities being in the first-level braking state means that the fire-fighting facilities have completed pre-start self-inspection, pipeline pressure holding, valve opening or pre-opening, etc., and are in a standby state ready to immediately spray extinguishing agents. The cofferdam device being in the second-level braking state means that the cofferdam device has completed self-inspection, power-on, mechanical structure unlocking, and other preparatory actions, so as to carry out single-vehicle or zone enclosure under the control of subsequent control commands.

[0147] The generated warning signal can be sent to the corresponding module, and after receiving the warning signal, the corresponding module will enter the corresponding braking state under the linkage control of the control unit.

[0148] Firefighting facilities include, but are not limited to, fire pump sets, fire hydrants, and foam liquid storage tanks. When the firefighting system is in a first-level braking state, specifically, the valves of the fire hydrants are opened to inject pressurized fire water into the pipe network, and the valves of the foam liquid storage tanks are opened to inject foam liquid into the pipe network. The fire water and foam liquid at a certain pressure in the pipe network are mixed by a proportioning mixer, and then impact the nozzle of the foam generator to produce foam of a specific ratio.

[0149] In addition to controlling the fire-fighting facilities to the first-level braking state, it can also control the multi-stage cofferdam device and other infrastructure to the second-level braking state. Other infrastructure includes, but is not limited to, fans and compartment doors.

[0150] After determining the location of the at-risk vehicle, the corresponding single-vehicle cofferdam device can be switched from secondary braking to primary braking, or activated directly, based on the vehicle's location. Upon detecting open flame or smoke, the corresponding zoned cofferdam device can be switched from secondary braking to primary braking, or activated directly.

[0151] By setting the fire-fighting facilities as primary braking and the multi-stage cofferdam device as secondary braking after the warning, the equipment start-up delay can be eliminated, enabling the system to execute immediately when enclosure and spraying are required, thereby improving the emergency response speed.

[0152] Optionally, after controlling the multi-level cofferdam device to be in the secondary braking state, the method further includes: generating a start command for a single-vehicle cofferdam device based on the location of the at-risk vehicle, so as to control the single-vehicle cofferdam device to surround the at-risk vehicle and form a first-level isolation space; after detecting smoke or open flame in the first-level isolation space, generating a start command for a zone cofferdam device in the zone where the at-risk vehicle is located, so as to control the zone cofferdam device to surround the zone where the at-risk vehicle is located and form a second-level isolation space.

[0153] After the multi-level cofferdam device enters the second-level braking (standby ready) state, the system first generates and issues a single-vehicle cofferdam device activation command based on the location of the at-risk vehicle, controlling it to precisely surround the at-risk vehicle and form the first-level isolation space; if smoke or open flame is subsequently detected in the first-level isolation space, or smoke or open flame is detected from other vehicles traveling, the system automatically generates the activation command for the corresponding zone cofferdam device, controlling the zone cofferdam to surround the entire zone and form the second-level isolation space.

[0154] By automatically generating and issuing activation commands for corresponding containment devices based on the location of at-risk vehicles and changes in the fire situation, fully automated and graded activation of single-vehicle containment and zone containment can be achieved, significantly improving the automation level and response speed of vehicle fire extinguishing systems. Isolation space construction can be completed without manual intervention, enhancing the timeliness and reliability of emergency response.

[0155] Figure 6This application provides an overall framework diagram of a vehicle fire extinguishing system, such as... Figure 6 As shown, the system includes an early warning unit, a response unit, a disposal unit, and a reignition prevention unit. The early warning unit includes an early warning component; the response unit includes a linkage controller; the disposal unit includes a disposal component, a single-vehicle cofferdam device, and a zoned cofferdam device; and the reignition prevention unit includes an reignition prevention component, a single-vehicle cofferdam device, and an infrared camera.

[0156] The early warning unit employs two warning methods: data anomaly alarm and audible and visual alarm, used to receive data anomaly signals sent by the BMS or warning signals sent by the binocular camera.

[0157] For example, when the BMS determines that the internal temperature of the vehicle's battery pack is rising at a preset rate or that the temperature has reached a temperature threshold, the BMS immediately wakes up the vehicle and issues an audible and visual alarm signal. At this time, the binocular camera recognizes the audible and visual alarm signal and outputs the warning signal to the linkage controller through the warning unit.

[0158] When the early warning unit receives abnormal battery data of a risky vehicle or detects an audible and visual alarm signal of a risky vehicle, the early warning unit or a binocular camera can locate the risky vehicle and obtain the parking space code of the virtual parking space where the risky vehicle is located, so as to carry out precise fire fighting.

[0159] After receiving the warning signal and the parking space code of the virtual parking space where the at-risk vehicle is located, the linkage controller will activate multiple corresponding devices, including but not limited to fire-fighting facilities such as fire pump sets, fire hydrants and foam liquid storage tanks, as well as infrastructure such as dike devices, cargo compartment doors and fan switches.

[0160] Fire pump sets, fire hydrants, and foam liquid storage tanks are in a first-level braking state after receiving an early warning signal, and the equipment starts to work in this state. Simultaneously, infrastructure such as zoned cofferdam devices, cargo compartment doors, and fan switches are in a second-level braking state, and can only be officially started by manual intervention or a next-level early warning.

[0161] After the fire-fighting facilities are in a first-level braking state, the control and response components simultaneously begin operation. Specifically, the response components perform fire-fighting procedures corresponding to single-vehicle and / or zone-level cofferdams according to the aforementioned logic. During the data anomaly phase, at-risk vehicles can be precisely isolated using single-vehicle cofferdam devices to form a first-level isolation space, and the single-vehicle cofferdam devices can be controlled to inject extinguishing agent into the first-level isolation space; and during the smoke or open flame phase, the corresponding zones can be enclosed using zone-level cofferdam devices to form a second-level isolation space, and extinguishing agent can be injected into the second-level isolation space.

[0162] Furthermore, in response to the characteristics of battery fire reignition, the anti-reignition component takes over after the open flame is extinguished, controls the single-vehicle containment dike to continue injecting extinguishing agent, and can simultaneously monitor and confirm the battery pack temperature through an infrared camera to determine whether to stop the injection of extinguishing agent.

[0163] The handling component can determine whether the open flame has been extinguished. If so, it generates a control command for the anti-reignition component to activate it.

[0164] Taking roll-on / roll-off ships and foam as the extinguishing agent as an example, Figure 7 The schematic diagram of the piping system of the vehicle fire extinguishing system provided in the embodiments of this application is as follows: Figure 7 As shown, the vehicle fire extinguishing system includes a foam liquid storage tank 1, a tank level gauge 2, a tank pressure gauge 3, a foam liquid electric valve 4, a foam liquid supply pump 5, a foam liquid delivery pressure gauge 6, a foam liquid pipeline flow meter 7, a fire water main pump 8, a fire water electric valve 9, a fire water first pressure gauge 10, a fire water first flow meter 11, a fire water booster pump 12, a fire water second pressure gauge 13, a fire water second flow meter 14, a mixed liquid zone electric valve 15, and a fire hydrant electric valve 16.

[0165] The foaming ratio can be determined by the coordinated operation of the foam liquid supply pump 5, the main fire water pump 8, and the fire water booster pump 12, thereby obtaining the aforementioned first, second, or third multiple of foam extinguishing agent. Under the control of the corresponding fire hydrant electric valve 16 or the mixed liquid zone electric valve 15, the foam generator of the single-vehicle cofferdam device or the zone cofferdam device can be delivered.

[0166] Figure 8 A schematic diagram of another vehicle fire suppression system provided in this application, such as Figure 8 As shown, different from Figure 7 A large foam liquid storage tank 1 can be installed, and portable foam buckets 25, three-way solenoid valves 26 and proportioning mixers 27 can be added. Together with existing fire hydrants 18, foam generators 19 and pipelines 28, a lightweight foam fire extinguishing system can be formed.

[0167] The portable foam bucket 25 serves as a mobile storage unit for foam liquid. It is connected to the inlet of the fire hydrant 18 via a three-way solenoid valve 26 to control the fire water passage and the foam liquid passage. The proportioning mixer 27 is connected in series between the three-way solenoid valve 26 and the foam generator 19. It can precisely adjust the mixing ratio of fire water and foam liquid according to the fire extinguishing requirements, thereby outputting a specific multiple of foam extinguishing agent.

[0168] Fire hydrant 18 provides a fire-fighting water power source. When the three-way solenoid valve 26 is switched to the foam liquid passage, the fire water is drawn into the foam liquid in the portable foam tank 25 by the proportioning mixer 27, mixed to form a foam mixture, and then transported to the foam generator 19 to spray out foam of the corresponding multiple to cover the vehicle parking area to extinguish the fire.

[0169] Figure 9 Flowchart of the vehicle fire extinguishing method provided in this application Figure 3 This method is applied to the fire extinguishing system provided in the aforementioned embodiments, such as... Figure 9 As shown, the method specifically includes the following steps:

[0170] Step S11: Establish communication with the BMS of the vehicle on board so that the BMS can transmit early battery abnormality data that indicates the risk of thermal runaway when the battery is abnormal. Alternatively, the BMS can immediately wake up the vehicle and issue an audible and visual alarm signal when the battery is abnormal. After the binocular camera recognizes the vehicle's audible and visual alarm signal, it issues a warning signal.

[0171] In step S12, in response to the aforementioned warning signal, the fire pump unit starts, allowing pressurized fire water in the pipeline to reach the outlet of each fire hydrant; the foam liquid electric valve or solenoid valve opens, filling the corresponding foam pipeline with foam liquid; the ship's cabin fan immediately increases the air volume to exhaust any possible smoke; at the same time, the zoned cofferdam device and the cargo compartment zoned opening and closing device are in the second-level braking state.

[0172] The fire pump set includes a waterproof main pump 8 and a booster pump 12.

[0173] Step S13: In response to the aforementioned warning signal, the at-risk vehicle is located using automatic or assisted positioning technology. The single-vehicle containment device is manually or automatically moved to the corresponding position of the at-risk vehicle and deployed to surround the at-risk vehicle and form a first-level isolation space.

[0174] Step S14: When smoke or open flame is detected, after confirming that personnel have evacuated, the zoned dike device is activated to form a larger second-level isolation space, and foam is simultaneously sprayed into the zone through multiple foam generators.

[0175] Step S15: After the smoke dissipates or the open flame is extinguished, maintain or reactivate the single-vehicle containment device and continuously inject medium foam extinguishing agent into the first-level isolation space formed by it, so that the battery pack of the at-risk vehicle is submerged for a long time to prevent reignition.

[0176] Figure 10 The flowchart illustrating the control of fire protection facilities in the first-level braking state provided in this application is as follows: Figure 10As shown, when the warning signal is transmitted to the linkage controller, the linkage controller sends control commands to the fire hydrant, foam liquid storage tank and its actuators such as valves, so that the corresponding equipment enters the first-level braking standby state.

[0177] In the first-level braking state, the valves of the fire hydrants, such as the fire water electric valve 9, open to inject pressurized fire water into the pipeline network; simultaneously, the valves of the foam liquid storage tanks, such as the foam liquid electric valve 4, open to inject foam liquid into the pipeline network. The pressurized fire water and foam liquid are transported to the proportioning mixer in the pipeline network, where they are mixed according to a preset ratio to form a mixture. The mixture is then transported to the foam generator, where it collides with air at the nozzle to produce a specific multiple of foam extinguishing agent.

[0178] Corresponding to the vehicle fire extinguishing method provided in the foregoing embodiments, this application embodiment also provides a vehicle fire extinguishing device, including: a risk vehicle positioning module, used to determine the location of the risk vehicle after receiving battery abnormality data sent by the battery management system of the risk vehicle, or after identifying the risk vehicle and triggering an audible and visual alarm; a primary isolation and fire extinguishing module, used to inject fire extinguishing agent into the primary isolation space after surrounding the risk vehicle with a single-vehicle cofferdam device to form a primary isolation space based on the location of the risk vehicle, and to detect smoke and open flame in the primary isolation space; and a secondary isolation and fire extinguishing module, used to inject fire extinguishing agent into the secondary isolation space after surrounding the zone where the risk vehicle is located with a zone cofferdam device to form a secondary isolation space if smoke or open flame is detected.

[0179] In one possible implementation, the primary isolation and fire suppression module is specifically used to: after forming a primary isolation space by surrounding the at-risk vehicle with a single-vehicle cofferdam device based on the location of the at-risk vehicle, control the foam generator in the single-vehicle cofferdam device to inject a first multiple of foam fire extinguishing agent into the primary isolation space to submerge the chassis of the vehicle in the primary isolation space.

[0180] In one possible implementation, the secondary isolation and extinguishing module is specifically used for: if smoke is detected, after the secondary isolation space is formed by the zonal cofferdam device surrounding the zone where the at-risk vehicle is located, controlling the foam generator in the zonal cofferdam device to sequentially inject a first multiple and a second multiple of foam extinguishing agent into the secondary isolation space to submerge the chassis of the vehicle within the secondary isolation space; the second multiple is greater than the first multiple; if open flame is detected, controlling the foam generator in the zonal cofferdam device to sequentially inject a first multiple, a second multiple, and a third multiple of foam extinguishing agent into the secondary isolation space to submerge the chassis of the vehicle within the secondary isolation space; the third multiple is greater than the second multiple.

[0181] In one possible implementation, the device further includes: a fire detection module, used to monitor the abnormal state of the second-level isolation space while the foam generator in the control zone cofferdam device injects foam extinguishing agent into the second-level isolation space; and a fire runaway response module, used to, if the abnormal state meets the runaway conditions, cut off the electrical and ventilation systems in the second-level isolation space while continuing to inject foam extinguishing agent into the second-level isolation space, and after confirming that personnel have evacuated from the area corresponding to the second-level isolation space, seal the second-level isolation space and spray carbon dioxide into the second-level isolation space until the open flame in the second-level isolation space is extinguished.

[0182] In one possible implementation, the device further includes a reignition prevention module, which is used to: stop spraying foam extinguishing agent into the second-level isolation space when the smoke is detected to have dissipated or the open flame is extinguished and the temperature is below a preset safety threshold, maintain the first-level isolation space formed by the single-vehicle cofferdam device, and continue to inject a first multiple of foam extinguishing agent into the first-level isolation space.

[0183] In one possible implementation, the first multiple is 5 to 10, the second multiple is 10 to 20 times the first multiple, and the third multiple is 40 to 80 times the first multiple.

[0184] In one possible implementation, the device further includes a whole-area smoke and fire detection module for: detecting smoke and open flame in the area where the vehicle is loaded; and a secondary isolation and extinguishing module for: injecting extinguishing agent into the second-level isolation space after surrounding the target area with a partitioned dike device to form a second-level isolation space if smoke or open flame is detected in the target area.

[0185] In one possible implementation, the risk vehicle location module is specifically used to: obtain the risk vehicle's identification code after receiving battery anomaly data sent by the risk vehicle's battery management system; and determine the parking space code of the virtual parking space where the risk vehicle is located based on the risk vehicle's identification code and the stored correspondence between vehicle identification codes and parking space codes.

[0186] In one possible implementation, the risk vehicle location module is specifically used to: after the binocular camera identifies the audible and visual alarm signal of the risk vehicle, determine the parking space code of the virtual parking space where the risk vehicle is located based on the visual positioning information of the binocular camera.

[0187] In one possible implementation, the device further includes a pre-action module for: generating a warning signal after receiving abnormal battery data sent by the battery management system of the risk vehicle, or after identifying the risk vehicle and triggering an audible and visual alarm; and controlling the fire-fighting facilities to a first-level braking state and the zone containment device to a second-level braking state after detecting the warning signal, so as to surround the zone where the risk vehicle is located and inject fire extinguishing agent into the isolated space formed after the enclosure.

[0188] In one possible implementation, the device further includes a cofferdam device activation module, configured to: after controlling the multi-level cofferdam device to be in a secondary braking state, generate an activation command for a single-vehicle cofferdam device based on the location of the at-risk vehicle, so as to control the single-vehicle cofferdam device to surround the at-risk vehicle and form a first-level isolation space; and after detecting smoke or open flame in the first-level isolation space, generate an activation command for a zone cofferdam device in the zone where the at-risk vehicle is located, so as to control the zone cofferdam device to surround the zone where the at-risk vehicle is located and form a second-level isolation space.

[0189] The vehicle fire extinguishing device provided in this embodiment can perform the method provided in the above method embodiment. Its implementation principle and technical effect are similar, and will not be described in detail here.

[0190] Figure 11 A schematic diagram of the structure of the electronic device provided in this application. Figure 11 As shown, the electronic device 110 provided in this embodiment includes at least one processor 1101 and a memory 1102. Optionally, the electronic device 110 further includes a communication component 1103. The processor 1101, the memory 1102, and the communication component 1103 are connected via a bus 1104.

[0191] In a specific implementation, at least one processor 1101 executes computer execution instructions stored in memory 1102, causing at least one processor 1101 to perform the above-described method.

[0192] The specific implementation process of processor 1101 can be found in the above method embodiments, and its implementation principle and technical effect are similar. It will not be repeated here.

[0193] In the above embodiments, it should be understood that the processor can be a Central Processing Unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), etc. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the method disclosed in this invention can be directly implemented by a hardware processor, or implemented by a combination of hardware and software modules within the processor.

[0194] The memory may include random access memory (RAM) and may also include non-volatile memory (NVM), such as at least one disk storage device.

[0195] The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus, etc. Buses can be categorized as address buses, data buses, control buses, etc. For ease of illustration, the buses shown in the accompanying drawings are not limited to a single bus or a single type of bus.

[0196] This application also provides a vehicle fire extinguishing system, including an early warning unit, a control unit, and a multi-stage containment device; the multi-stage containment device includes a single-vehicle containment device and a zone containment device; the early warning unit is used to determine the location of the risky vehicle after receiving abnormal battery data sent by the battery management system of the risky vehicle, or after identifying the risky vehicle and triggering an audible and visual alarm; the control unit is used to inject fire extinguishing agent into the first-stage containment space after surrounding the risky vehicle with the single-vehicle containment device to form a first-stage containment space based on the location of the risky vehicle, and to detect smoke and open flame in the first-stage containment space; if smoke or open flame is detected, fire extinguishing agent is injected into the second-stage containment space after surrounding the zone where the risky vehicle is located with the zone containment device to form a second-stage containment space.

[0197] Optionally, there are multiple single-vehicle cofferdam devices, including fire hydrants, foam generators, fire hoses, single-vehicle cofferdams, and smoke and fire detection modules; when surrounding a risky vehicle, the single-vehicle cofferdam forms a barrier structure to physically isolate the risky vehicle; the smoke and fire detection module is used to detect smoke and open flames from the risky vehicle; there are multiple zone cofferdam devices, including isolation barrier structures deployed in the corresponding zones, and at least one set of matching fire hydrants, foam generators, and fire hoses; the isolation barrier structures enclose the zone they are in or control the zone they are in to physically isolate the zone they are in.

[0198] This application also provides a computer program product, including a computer program that, when executed by a processor, implements the above-described method.

[0199] This application also provides a computer-readable storage medium storing computer-executable instructions, which, when executed by a processor, implement the above-described method.

[0200] The aforementioned readable storage medium can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk. The readable storage medium can be any available medium accessible to a general-purpose or special-purpose computer.

[0201] An exemplary readable storage medium is coupled to a processor, enabling the processor to read information from and write information to the readable storage medium. Of course, the readable storage medium can also be a component of the processor. The processor and the readable storage medium can reside in an Application Specific Integrated Circuit (ASIC). Alternatively, the processor and the readable storage medium can exist as discrete components in the device.

[0202] The division of units is merely a logical functional division; in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be indirect coupling or communication connection through some interfaces, devices, or units, and may be electrical, mechanical, or other forms.

[0203] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0204] In addition, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0205] If a function is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this invention, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of the various embodiments of this invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0206] Those skilled in the art will understand that all or part of the steps of the above-described method embodiments can be implemented by hardware related to program instructions. The aforementioned program can be stored in a computer-readable storage medium. When executed, the program performs the steps of the above-described method embodiments; and the aforementioned storage medium includes various media capable of storing program code, such as ROM, RAM, magnetic disks, or optical disks.

[0207] Finally, it should be noted that other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein, and is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of the invention is limited only by the appended claims.

Claims

1. A method for extinguishing a vehicle fire, characterized in that, include: After receiving abnormal battery data from the battery management system of the risky vehicle, or after identifying the risky vehicle and triggering an audible and visual alarm, the location of the risky vehicle is determined. Based on the location of the at-risk vehicle, after surrounding the at-risk vehicle with a single-vehicle cofferdam to form a first-level isolation space, fire extinguishing agent is injected into the first-level isolation space, and smoke and open flame detection is performed on the first-level isolation space. If smoke or open flame is detected, fire extinguishing agent is injected into the second-level isolation space after the zone containing the at-risk vehicle is surrounded by a zoned cofferdam device to form a second-level isolation space.

2. The method according to claim 1, characterized in that, The injection of fire extinguishing agent into the first-level isolation space includes: The foam generator in the single-vehicle containment device is controlled to inject a first multiple of foam extinguishing agent into the first-level isolation space to submerge the chassis of the vehicle within the first isolation space.

3. The method according to claim 2, characterized in that, The injection of extinguishing agent into the second-level isolation space includes: If smoke is detected, the foam generator in the partitioned cofferdam device is controlled to inject a first multiple and a second multiple of foam extinguishing agent into the second-level isolation space in sequence to submerge the chassis of the vehicle in the second-level isolation space; the second multiple is greater than the first multiple. If an open flame is detected, the foam generator in the partitioned cofferdam device is controlled to inject a first, second, and third multiple of foam extinguishing agent into the second-level isolation space in sequence to submerge the chassis of the vehicle in the second-level isolation space; the third multiple is greater than the second multiple.

4. The method according to claim 3, characterized in that, The method further includes: While controlling the foam generator in the partitioned cofferdam device to inject foam extinguishing agent into the second-level isolation space, monitor the abnormal state of the second-level isolation space; If the abnormal state meets the conditions for loss of control, while continuing to inject foam extinguishing agent into the second-level isolation space, the electrical and ventilation systems in the second-level isolation space shall be cut off. After confirming that the personnel in the corresponding area of ​​the second-level isolation space have been evacuated, the second-level isolation space shall be sealed off, and carbon dioxide shall be sprayed into the second-level isolation space until the open flame in the second-level isolation space is extinguished.

5. The method according to claim 3, characterized in that, The method further includes: When the smoke dissipates or the open flame is extinguished and the temperature is below the preset safety threshold, the spraying of foam extinguishing agent into the second-level isolation space is stopped, the first-level isolation space formed by the single-vehicle cofferdam device is maintained, and the first multiple of foam extinguishing agent is injected into the first-level isolation space.

6. The method according to any one of claims 1-5, characterized in that, The method further includes: Smoke and open flame detection were conducted in the area where the vehicles were loaded. If smoke or open flame is detected in the target zone, fire extinguishing agent is injected into the second-level isolation space after the target zone is surrounded by the zone dike device to form a second-level isolation space.

7. The method according to any one of claims 1-5, characterized in that, After receiving battery anomaly data from the battery management system of the at-risk vehicle, determining the location of the at-risk vehicle includes: After receiving battery anomaly data sent by the battery management system of the risk vehicle, the identification code of the risk vehicle is obtained; based on the identification code of the risk vehicle and the stored correspondence between vehicle identification codes and parking space codes, the parking space code of the virtual parking space where the risk vehicle is located is determined. After detecting a risky vehicle and triggering an audible and visual alarm, the location of the risky vehicle is determined, including: After the binocular camera identifies the sound and light alarm signal of the risky vehicle, the parking space code of the virtual parking space where the risky vehicle is located is determined based on the visual positioning information of the binocular camera.

8. The method according to any one of claims 1-5, characterized in that, The method further includes: After receiving abnormal battery data from the battery management system of a risky vehicle, or after identifying a risky vehicle and triggering an audible and visual alarm, a warning signal is generated. Upon detecting the warning signal, the fire-fighting facilities are controlled to enter a first-level braking state, and the zone containment device is controlled to enter a second-level braking state, so as to surround the zone where the at-risk vehicle is located and inject fire extinguishing agent into the isolated space formed after the enclosure.

9. The method according to claim 8, characterized in that, After controlling the multi-stage cofferdam device to a secondary braking state, the method further includes: Based on the location of the at-risk vehicle, a start command for the single-vehicle cofferdam device is generated to control the single-vehicle cofferdam device to surround the at-risk vehicle and form the first-level isolation space; Upon detecting smoke or open flame in the first-level isolation space, a start command is generated for the partitioned containment device of the zone where the at-risk vehicle is located, so as to control the partitioned containment device to surround the zone where the at-risk vehicle is located, forming the second-level isolation space.

10. A vehicle fire extinguishing device, characterized in that, include: The risk vehicle location module is used to determine the location of the risk vehicle after receiving battery abnormality data sent by the battery management system of the risk vehicle, or after identifying the risk vehicle and triggering an audible and visual alarm. The primary isolation and fire suppression module is used to inject fire extinguishing agent into the primary isolation space after the risk vehicle is surrounded by a single-vehicle cofferdam device to form a primary isolation space based on the location of the risk vehicle, and to detect smoke and open flame in the primary isolation space. The secondary isolation and fire suppression module is used to inject fire extinguishing agent into the second-level isolation space after the partitioned dike device surrounds the partition where the at-risk vehicle is located to form a second-level isolation space if smoke or open flame is detected.

11. An electronic device, characterized in that, include: Memory, processor; The memory stores computer-executed instructions; The processor executes computer execution instructions stored in the memory, causing the processor to perform the method as described in any one of claims 1-9.

12. A vehicle fire extinguishing system, characterized in that, include: Early warning unit, control unit, and multi-stage cofferdam device; The multi-stage cofferdam system includes a single-vehicle cofferdam system and a zoned cofferdam system. The early warning unit is used to determine the location of the risky vehicle after receiving abnormal battery data sent by the battery management system of the risky vehicle, or after identifying the risky vehicle and triggering an audible and visual alarm. The control unit is used to inject fire extinguishing agent into the first-level isolation space after surrounding the risk vehicle with the single-vehicle cofferdam device to form a first-level isolation space based on the location of the risk vehicle, and to detect smoke and open flame in the first-level isolation space; if smoke or open flame is detected, fire extinguishing agent is injected into the second-level isolation space after surrounding the zone where the risk vehicle is located with the zone cofferdam device to form a second-level isolation space.

13. The system according to claim 12, characterized in that, The single-vehicle containment device comprises multiple components, including fire hydrants, foam generators, fire hoses, single-vehicle containment dikes, and smoke and fire detection modules; when surrounding the at-risk vehicle, the single-vehicle containment dikes form a barrier structure to physically isolate the at-risk vehicle. The smoke and fire detection module is used to detect smoke and open flames from the vehicles at risk. The zoned cofferdam device consists of multiple units, including isolation barriers deployed in the corresponding zones, and at least one set of fire hydrants, foam generators and fire hoses. The isolation enclosure structure encloses or controls the enclosure of the area to physically isolate the area.

14. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer-executable instructions, which, when executed by a processor, are used to implement the method as described in any one of claims 1-9.

15. A computer program product, characterized in that, Includes a computer program that, when executed by a processor, implements the method described in any one of claims 1-9.

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