Fire fighting system and method of mobile device, storage medium and mobile device

Abstract

The invention provides a fire-fighting system and method of a mobile device, a storage medium and the mobile device, and relates to the technical field of fire-fighting early warning, the fire-fighting system comprises a detection module used for detecting an inflammable component of the mobile device to obtain characteristic data of the inflammable component; the determination module is used for determining the fire-fighting early warning level of the mobile device according to the characteristic data of the flammable component; and the control module is used for determining a corresponding fire-fighting control strategy according to the fire-fighting early warning grade, and performing turn-off control on at least part of branches of a power supply circuit of the mobile device according to the fire-fighting control strategy. According to the invention, multiple detectors are arranged on the flammable part of the mobile device for detection to obtain the detection data, the corresponding fire control strategy is executed according to the detection data, and the power supply circuit of the mobile device is cut off from different branches, so that the safety of the power supply system of the mobile device in the use process is improved; and the ability of the energy storage unit to suppress a fire after thermal runaway occurs.

Description

Technical Field

[0001] The present invention relates to the field of fire warning technology, and in particular to a fire protection system, method, storage medium and mobile device of a mobile device. Background Art

[0002] New energy vehicles refer to vehicles that use power batteries or new fuels such as methanol as their main power source. Due to the addition of many high-voltage components and wiring harnesses, power battery overcharging, collision fire, internal and external short circuits and other reasons increase the safety risks of mobile devices during parking charging or driving, and in severe cases may cause vehicle fires.

[0003] At present, the fire fighting method of new energy vehicles is usually to set a single sensor at the flammable parts. When a fire occurs, the fire fighting system relies on the temperature sensing of the sensor. When the trigger conditions are met, the fire fighting system is triggered to spray the fire extinguishing agent to suppress the fire. However, after the power system of new energy vehicles is thermally runaway and a fire occurs, the power supply circuit voltage may be as high as thousands of volts, which is not conducive to fire suppression and fire rescue. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, the present invention provides a fire fighting system, method, storage medium and mobile device for a mobile device, which effectively solve the problem that after thermal runaway and fire of the power supply system of the existing mobile device, the power supply circuit voltage may be as high as thousands of volts, which is not conducive to fire suppression and fire rescue.

[0005] In a first aspect, the present invention provides a fire fighting system for a mobile device, the fire fighting system for a mobile device comprising:

[0006] A detection module, used to detect flammable components of the mobile device and obtain characteristic data of the flammable components;

[0007] A determination module, configured to determine a fire warning level of the mobile device according to the characteristic data of the flammable component;

[0008] A control module is used to determine a corresponding fire control strategy according to the fire warning level, and to shut down at least part of the branches of the power supply circuit of the mobile device according to the fire control strategy.

[0009] Further, the fire warning level includes a first warning level and a second warning level, the power supply circuit includes at least a battery cluster branch and a main power branch, the battery cluster branch includes a cluster-level circuit breaker, the main power branch includes a power switch, and the control module is further used for:

[0010] If the fire warning level is the first warning level, a first fire control strategy is initiated to send a first-level warning signal to the battery management system of the mobile device, so as to control the battery management system to disconnect the cluster-level circuit breaker according to the first-level warning signal, thereby cutting off the battery cluster branch;

[0011] If the fire warning level is the second warning level, the second fire control strategy is activated and a secondary warning signal is sent to the battery management system to control the battery management system to disconnect the power switch according to the secondary warning signal, thereby cutting off the main power branch.

[0012] Further, the detection module includes at least a temperature detector, a smoke detector and a gas detector, the flammable component characteristic data includes at least temperature detection data, smoke detection data and gas detection data, and the determination module is further configured to determine that the mobile device is at the first warning level if the flammable component characteristic data satisfies a first warning condition, wherein the first warning condition is at least one of the following conditions:

[0013] The temperature detection data is greater than the temperature alarm threshold;

[0014] The smoke detection data is greater than the smoke alarm threshold;

[0015] The gas detection data is greater than a first gas concentration threshold.

[0016] Further, the determination module is further configured to determine that the mobile device is at the second warning level if the characteristic data of the flammable component meets a second warning condition, wherein the second warning condition is at least one of the following conditions:

[0017] Condition 1: the temperature detection data is greater than the temperature alarm threshold and the smoke detection data is greater than the smoke alarm threshold;

[0018] Condition 2: the gas detection data is greater than the second gas concentration threshold and the temperature detection data is greater than the temperature alarm threshold;

[0019] Condition three: the gas detection data is greater than the second gas concentration threshold and the smoke detection data is greater than the smoke alarm threshold.

[0020] Furthermore, the detection module also includes a composite detector, wherein the composite detector is arranged in the battery pack of the mobile device, and the composite detector is used to collect temperature data, smoke concentration and gas concentration of the battery pack and transmit them to the determination module, and the determination module determines the battery pack warning level according to the temperature data, the smoke concentration and the gas concentration, and determines the fire warning level according to the battery pack warning level.

[0021] Furthermore, the fire protection system of the mobile device also includes an early warning module, which is used to perform sound and light warning according to the alarm signal emitted by the control module. The first fire control strategy and the second fire control strategy also include the control module sending an alarm signal to the early warning module for sound and light warning.

[0022] Furthermore, the fire fighting system of the mobile device further comprises a fire fighting module, and the fire fighting module is used to perform fire fighting processing according to the fire fighting signal sent by the control module;

[0023] The fire fighting module comprises a ventilation unit and a fire extinguishing unit, wherein the ventilation unit is used to discharge smoke and gas in the mobile device, and the fire extinguishing unit is used to extinguish the fire source of the mobile device;

[0024] The first fire control strategy also includes the control module sending the fire signal to start the ventilation unit;

[0025] The second fire control strategy also includes the control module sending the fire signal to shut down the ventilation unit and start the fire extinguishing unit.

[0026] In a second aspect, the present invention provides a fire fighting method for a mobile device, the fire fighting method for a mobile device comprising:

[0027] Detecting flammable components of mobile devices to obtain characteristic data of flammable components;

[0028] Used to determine the fire warning level of the mobile device according to the characteristic data of the flammable component;

[0029] A corresponding fire control strategy is determined according to the fire warning level, and at least part of the branches of the power supply circuit of the mobile device are shut down according to the fire control strategy, and sound and light alarms and fire fighting are performed.

[0030] In a third aspect, the present invention provides a computer-readable storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the fire fighting method of a mobile device as described in the second aspect of the present invention.

[0031] In a fourth aspect, the present invention provides a mobile device, wherein the mobile device comprises the fire fighting system of the mobile device as described in the first aspect of the present invention.

[0032] The fire protection system of the mobile device provided by the present invention obtains detection data by setting up multiple detectors on the flammable parts of the mobile device, determines the fire warning level of the mobile device according to the detection data, and then executes the corresponding fire control strategy according to the fire warning level, and cuts off the power supply circuit of the mobile device, thereby improving the safety of the power supply system of the mobile device during use, and at the same time improving the ability of the energy storage unit of the mobile device to suppress fire after thermal runaway occurs, effectively delaying the spread of fire, reducing the rescue risk after the accident, and buying more escape time for drivers or passengers. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0034] Figure 1 is a structural schematic diagram of a fire fighting system of a mobile device provided by an embodiment of the present invention;

[0035] Figure 2 is a structural schematic diagram of another fire fighting system of a mobile device provided by an embodiment of the present invention;

[0036] Figure 3 This is a flow chart of a fire fighting method for a mobile device provided by an embodiment of the present invention;

[0037] Figure 4 It is a structural schematic diagram of a mobile device provided by an embodiment of the present invention.

[0038] Description of the drawings: 10, mobile device; 100, fire protection system of mobile device; 110, detection module; 120, determination module; 130, control module; 140, early warning module; 150, fire protection module; 200, power supply circuit; 210, battery management system; 220, battery cluster branch; 230, main power supply branch. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be further clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. It should be noted that the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0040] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0041] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in this specification are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0042] At present, the fire fighting method of new energy vehicles is usually to set a single sensor at the flammable parts. When a fire occurs, the fire fighting system relies on the temperature sensing of the sensor. When the trigger conditions are met, the fire fighting system is triggered to spray the fire extinguishing agent to suppress the fire. However, after the power system of new energy vehicles is thermally runaway and a fire occurs, the power supply circuit voltage may be as high as thousands of volts, which is not conducive to fire suppression and fire rescue.

[0043] Example 1

[0044] The embodiment of the present invention provides a fire fighting system for a mobile device, which effectively solves the problem that after thermal runaway and fire, the power supply circuit voltage of the existing mobile device may reach thousands of volts, which is not conducive to fire suppression and fire fighting rescue. In the embodiment of the present invention, the mobile device includes but is not limited to vehicles, ships, aircraft and other devices. Figure 1 FIG. 1 is a schematic diagram of a fire fighting system of a mobile device provided by an embodiment of the present invention. Figure 1 As shown, the fire fighting system 100 of the mobile device includes a detection module 110, a determination module 120 and a control module 130, wherein:

[0045] The detection module 110 is used to detect the flammable components of the mobile device and obtain the flammable component characteristic data. The flammable components include but are not limited to related components such as power batteries, fuel supply systems, and heat-prone electronic components. The detection module 110 includes at least a temperature detector, a smoke detector, and a gas detector. The flammable component characteristic data includes at least temperature detection data, smoke detection data, and gas detection data.

[0046] Optionally, multiple temperature detectors are arranged in each flammable component to collect temperature detection data of all flammable components; multiple smoke detectors are arranged in each flammable component to collect smoke detection data of all flammable components; multiple gas detectors are arranged in each flammable component, and the gas detectors include but are not limited to carbon monoxide detectors, hydrogen detectors, and combustible gas detectors, etc., for collecting gas detection data of all flammable components. In an embodiment of the present invention, the temperature detector, the smoke detector, and the gas detector are connected to the determination module 120 via a CAN (Controller Area Network) bus, and the collected temperature detection data, smoke detection data, and gas detection data are transmitted to the determination module 120. When the temperature detector, the smoke detector, and the gas detector perform data collection, a parallel method can be adopted, which is independent of each other and does not interfere with each other.

[0047] The determination module 120 is used to determine the fire warning level of the mobile device according to the flammable component characteristic data, and the fire warning level includes a first warning level and a second warning level. If the flammable component characteristic data meets the first warning condition, it is determined that the mobile device is at the first warning level, wherein the first warning condition is at least one of the following conditions: the temperature detection data is greater than the temperature alarm threshold, the smoke detection data is greater than the smoke alarm threshold, and the gas detection data is greater than the first gas concentration threshold.

[0048] If the characteristic data of the flammable component meets the second warning condition, it is determined that the mobile device is in the second warning level, where the second warning condition is at least one of the following three conditions: Condition 1, the temperature detection data is greater than the temperature alarm threshold and the smoke detection data is greater than the smoke alarm threshold; Condition 2, the gas detection data is greater than the second gas concentration threshold and the temperature detection data is greater than the temperature alarm threshold; Condition 3, the gas detection data is greater than the second gas concentration threshold and the smoke detection data is greater than the smoke alarm threshold.

[0049] In an embodiment of the present invention, the temperature alarm threshold, the smoke alarm threshold, the first gas concentration threshold and the second gas concentration threshold can be set according to the actual situation of the mobile device. By setting reasonable thresholds, abnormal conditions such as battery overheating and runaway can be discovered in time, and smoke can be discovered in time at the early stage of a fire, thereby gaining precious time for dealing with fire hazards.

[0050] The control module 130 is used to determine the corresponding fire control strategy according to the fire warning level, and to shut down the power supply circuit 200 of the mobile device according to the fire control strategy. In an embodiment of the present invention, the power supply circuit 200 at least includes a battery management system 210, a battery cluster branch 220 and a main power branch 230. The battery cluster branch 220 includes a battery cluster and its peripheral equipment. The battery cluster branch 220 is provided with a cluster-level circuit breaker. When an abnormal situation occurs in the battery cluster, the cluster-level circuit breaker can quickly cut off the circuit, thereby protecting the safety of the battery cluster and its peripheral equipment. The main power branch 230 includes components such as a power battery pack, a motor, a charger, a DC-DC converter and an air-conditioning compressor. The main power branch 230 is provided with a power switch.

[0051] When the determination module 120 determines that the fire warning level is the first warning level, the control module 130 activates the first fire control strategy and sends a first-level warning signal to the battery management system 210 of the mobile device to control the battery management system 210 to disconnect the cluster-level circuit breaker according to the first-level warning signal, thereby cutting off the battery cluster branch 220 to protect the safety of the battery cluster and its peripheral equipment.

[0052] When the determination module 120 determines that the fire warning level is the second warning level, the control module 130 activates the second fire control strategy and sends a second warning signal to the battery management system 210 to control the battery management system 210 to disconnect the power switch according to the second warning signal, thereby cutting off the main power branch 230, stopping power supply to the battery and other electrical systems, eliminating the risk of the electrical system continuing to cause a fire, and effectively curbing the further spread of the fire.

[0053] As a further implementation of the embodiment of the present invention, the detection module 110 also includes a composite detector, which integrates multiple sensors such as temperature, smoke, gas (such as carbon monoxide and volatile organic compounds, etc.) and flame. The composite detector is arranged in the battery pack of the mobile device. The composite detector can be used to collect the temperature data, smoke concentration and gas concentration (including carbon monoxide concentration and volatile organic compound concentration) of the battery pack and transmit it to the determination module 120. The determination module 120 determines the battery pack warning level according to the temperature data, smoke concentration and gas concentration, and determines the fire warning level according to the battery pack warning level.

[0054] Optionally, the battery pack warning level includes a first-level battery pack warning level, a second-level battery pack warning level, a third-level battery pack warning level and a fourth-level battery pack warning level, wherein:

[0055] The warning conditions for the first-level battery pack warning level are any of the following four conditions: the temperature data is greater than or equal to the first temperature threshold and less than the second temperature threshold, the smoke concentration is greater than or equal to the first smoke concentration threshold and less than the second smoke concentration threshold, the carbon monoxide concentration is greater than or equal to the first carbon monoxide concentration threshold and less than the second carbon monoxide concentration threshold, and the volatile organic compound concentration is greater than or equal to the first volatile organic compound concentration threshold.

[0056] The warning conditions for the second-level battery pack warning level are that any of the following four conditions are met and the time reaches the first time threshold: the temperature data is greater than or equal to the second temperature threshold, the carbon monoxide concentration is greater than or equal to the second carbon monoxide concentration threshold, the volatile organic compound concentration is greater than or equal to the second volatile organic compound concentration threshold, and the volatile organic compound concentration meets a specific upward trend.

[0057] The warning conditions for the third-level battery pack warning level are that any of the following four conditions are met and the time reaches the second time threshold: temperature data is greater than or equal to the third temperature threshold, carbon monoxide concentration is greater than or equal to the third carbon monoxide concentration threshold, volatile organic compound concentration is greater than or equal to the third volatile organic compound concentration threshold, and smoke concentration is greater than or equal to the second smoke concentration threshold.

[0058] The warning conditions for the fourth-level battery pack warning level are that any of the following five conditions are met and the time reaches the third time threshold: the temperature data is greater than or equal to the fourth temperature threshold, the steady-state temperature data is above the first temperature threshold and meets the first alarm threshold of the temperature difference, the temperature data is greater than or equal to the third temperature threshold and the volatile organic compound concentration is greater than or equal to the third volatile organic compound concentration threshold, the temperature data is greater than or equal to the third temperature threshold and the carbon monoxide concentration is greater than or equal to the third carbon monoxide concentration threshold, the temperature data is greater than or equal to the third temperature threshold and the smoke concentration is greater than or equal to the second smoke concentration threshold.

[0059] In an embodiment of the present invention, if the battery pack warning level is a first-level battery pack warning level, the fire warning level is not output to the outside; if the battery pack warning level is a second-level battery pack warning level and a third-level battery pack warning level, the fire warning level is determined to be a first warning level, and the control module 130 starts a first fire control strategy; if the battery pack warning level is a fourth-level battery pack warning level, the fire warning level is determined to be a second warning level, and the control module 130 starts a second fire control strategy.

[0060] The battery pack of a mobile device is one of its most important components and a potential fire risk point. By comprehensively considering multiple warning levels of the battery pack, the safety status of the battery pack can be evaluated more comprehensively and accurately. At the same time, the composite judgment of the fire warning level can avoid the false alarm or missed alarm problem caused by a single warning indicator, thereby improving the overall accuracy of the warning system.

[0061] As a further implementation of the embodiment of the present invention, Figure 2 1 is a schematic diagram of the structure of another fire fighting system of a mobile device provided in an embodiment of the present invention. The fire fighting system 100 of the mobile device further includes an early warning module 140 and a fire fighting module 150, wherein:

[0062] The early warning module 140 is used to perform an audible and visual early warning according to the alarm signal sent by the control module 130. The early warning module 140 includes but is not limited to devices such as a buzzer, an indicator light, a voice player, and a display screen, and the display screen integrates the functions of an audible and visual alarm and a voice alarm. The control module 130 starts the first fire control strategy and the second fire control strategy, and also includes the control module 130 sending an alarm signal to the early warning module 140 for an audible and visual early warning to remind the driver or passengers of the possible fire risk and to conduct a timely inspection.

[0063] The fire fighting module 150 is used to perform fire fighting according to the fire fighting signal sent by the control module 130. The fire fighting module 150 includes a ventilation unit and a fire extinguishing unit. The ventilation unit is used to discharge smoke and gas in the mobile device. In the embodiment of the present invention, the ventilation unit includes an exhaust fan and an air intake shutter. Through a specific fan and a pipeline system, the smoke and harmful gases generated in the mobile device are discharged, and fresh air is introduced to improve the environment of the mobile device. The fire extinguishing unit is used to extinguish the fire source of the mobile device. The fire extinguishing unit includes devices such as a fire fighting gas cylinder, a fire fighting pipeline, and an integrated nozzle, wherein the fire extinguishing agent in the fire fighting gas cylinder adopts perfluorohexanone and / or aerosol. Optionally, when the control module 130 starts the first fire fighting control strategy, the control module 130 sends a fire fighting signal to start the ventilation unit to discharge the smoke and harmful gases generated in the mobile device. When the control module 130 starts the second fire fighting control strategy, the control module 130 sends a fire fighting signal to close the ventilation unit and starts the fire extinguishing unit to extinguish the fire.

[0064] The fire protection system for a mobile device provided in an embodiment of the present invention obtains detection data by setting multiple detectors on the flammable parts of the mobile device, determines the fire warning level of the mobile device according to the detection data, and then executes a corresponding fire control strategy according to the fire warning level, and cuts off the power supply circuit of the mobile device, thereby improving the safety of the power supply system of the mobile device during use.

[0065] Example 2

[0066] Based on the same technical concept, an embodiment of the present invention provides a fire fighting method for a mobile device, and the fire fighting method for a mobile device is applied to the fire fighting system of the mobile device in the above embodiment 1. Figure 3 FIG. 1 is a flow chart of a fire fighting method for a mobile device provided by an embodiment of the present invention. Figure 3As shown, the fire fighting method of the mobile device comprises the following steps:

[0067] S100, detecting flammable components of the mobile device to obtain characteristic data of the flammable components;

[0068] S200, used to determine the fire warning level of the mobile device according to the characteristic data of the flammable component;

[0069] S300, determining a corresponding fire control strategy according to the fire warning level, shutting down at least part of the branches of the power supply circuit of the mobile device according to the fire control strategy, and performing sound and light alarm and fire fighting processing.

[0070] The fire control method for a mobile device provided in an embodiment of the present invention cuts off the power supply circuit of the mobile device according to the fire control strategy, thereby improving the safety of the power supply system of the mobile device during use, and at the same time improving the ability of the energy storage unit of the mobile device to suppress fire after thermal runaway occurs, effectively delaying the spread of fire, reducing the rescue risk after the accident, and buying more escape time for the driver or passengers.

[0071] It can be understood that the implementation of the fire fighting system of the mobile device in the above-mentioned embodiment 1 is also applicable to this embodiment and can achieve the same technical effect, so it will not be repeated here.

[0072] Example 3

[0073] Based on the same concept, an embodiment of the present invention further provides a computer-readable storage medium, which stores a computer program, and the computer program includes at least one code segment, which can be executed by a main control device to control the main control device to implement the steps of the fire control method of the mobile device described in the above embodiments. For example, it includes:

[0074] S100, detecting flammable components of the mobile device to obtain characteristic data of the flammable components;

[0075] S200, used to determine the fire warning level of the mobile device according to the characteristic data of the flammable component;

[0076] S300, determining a corresponding fire control strategy according to the fire warning level, shutting down at least part of the branches of the power supply circuit of the mobile device according to the fire control strategy, and performing sound and light alarm and fire fighting processing.

[0077] Based on the same technical concept, an embodiment of the present invention further provides a computer program, which is used to implement the above method embodiment when executed by a main control device.

[0078] The computer program may be stored in whole or in part on a computer-readable storage medium packaged with the processor, or may be stored in whole or in part on a memory not packaged with the processor.

[0079] Based on the same technical concept, an embodiment of the present invention further provides a processor, which is used to implement the above method embodiment. The above processor can be a chip.

[0080] Example 4

[0081] Based on the same technical concept, an embodiment of the present invention further provides a mobile device 10, Figure 4 is a schematic diagram of the structure of a mobile device provided by an embodiment of the present invention, such as Figure 4 As shown, the mobile device 10 includes the fire fighting system 100 of the mobile device in Example 1, and the mobile device includes but is not limited to vehicles, ships, aircraft and other devices.

[0082] The mobile device provided by the embodiment of the present invention improves the ability of the energy storage unit of the mobile device to suppress fire after thermal runaway occurs, effectively delays the spread of fire, reduces the rescue risk after the accident, and buys more escape time for drivers or passengers.

[0083] In summary, the fire protection system, method, storage medium and mobile device of the mobile device provided by the present invention obtain detection data by setting multiple detectors on the flammable parts of the mobile device, determine the fire warning level of the mobile device according to the detection data, and then execute the corresponding fire control strategy according to the fire warning level, and cut off the power supply circuit of the mobile device, thereby improving the safety of the power supply system of the mobile device during use, and at the same time improving the ability of the energy storage unit of the mobile device to suppress fire after thermal runaway occurs, effectively delaying the spread of fire, reducing the rescue risk after the accident, and buying more escape time for the driver or passengers.

[0084] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0085] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

[0086] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A fire fighting system for a mobile device, characterized in that: The fire fighting system of the mobile device comprises: A detection module, used to detect flammable components of the mobile device and obtain characteristic data of the flammable components; A determination module, configured to determine a fire warning level of the mobile device according to the characteristic data of the flammable component; A control module is used to determine a corresponding fire control strategy according to the fire warning level, and to shut down at least part of the branches of the power supply circuit of the mobile device according to the fire control strategy.

2. The fire fighting system of the mobile device according to claim 1, characterized in that: The fire warning level includes a first warning level and a second warning level, the power supply circuit includes at least a battery management system, a battery cluster branch and a main power branch, the battery cluster branch includes a cluster-level circuit breaker, the main power branch includes a power switch, and the control module is further used for: If the fire warning level is the first warning level, a first fire control strategy is initiated, and a first-level warning signal is sent to the battery management system to control the battery management system to disconnect the cluster-level circuit breaker according to the first-level warning signal, thereby cutting off the battery cluster branch; If the fire warning level is the second warning level, the second fire control strategy is activated and a second warning signal is sent to the battery management system to control the battery management system to disconnect the power switch according to the first warning signal, thereby cutting off the main power branch.

3. The fire fighting system of the mobile device according to claim 2, characterized in that: The detection module includes at least a temperature detector, a smoke detector and a gas detector, the flammable component characteristic data includes at least temperature detection data, smoke detection data and gas detection data, and the determination module is further configured to determine that the mobile device is at the first warning level if the flammable component characteristic data meets a first warning condition, wherein the first warning condition is at least one of the following conditions: The temperature detection data is greater than the temperature alarm threshold; The smoke detection data is greater than the smoke alarm threshold; The gas detection data is greater than a first gas concentration threshold.

4. The fire fighting system of the mobile device according to claim 3, characterized in that: The determination module is further configured to determine that the mobile device is at the second warning level if the flammable component characteristic data satisfies a second warning condition, wherein the second warning condition is at least one of the following conditions: The temperature detection data is greater than the temperature alarm threshold and the smoke detection data is greater than the smoke alarm threshold; The gas detection data is greater than a second gas concentration threshold and the temperature detection data is greater than the temperature alarm threshold; The gas detection data is greater than a second gas concentration threshold and the smoke detection data is greater than the smoke alarm threshold.

5. The fire fighting system of the mobile device according to claim 2, characterized in that: The detection module also includes a composite detector, wherein the composite detector is arranged in the battery pack of the mobile device, and the composite detector is used to collect temperature data, smoke concentration and gas concentration of the battery pack and transmit them to the determination module. The determination module determines the battery pack warning level according to the temperature data, the smoke concentration and the gas concentration, and determines the fire warning level according to the battery pack warning level.

6. The fire fighting system of the mobile device according to claim 2, characterized in that: The fire protection system of the mobile device also includes an early warning module, which is used to perform sound and light early warning according to the alarm signal sent by the control module. The first fire control strategy and the second fire control strategy also include the control module sending an alarm signal to the early warning module for sound and light early warning.

7. The fire fighting system of the mobile device according to claim 6, characterized in that: The fire protection system of the mobile device further comprises a fire protection module, which is used to perform fire protection processing according to the fire protection signal sent by the control module; The fire fighting module comprises a ventilation unit and a fire extinguishing unit, wherein the ventilation unit is used to discharge smoke and gas in the mobile device, and the fire extinguishing unit is used to extinguish the fire source of the mobile device; The first fire control strategy also includes the control module sending the fire signal to start the ventilation unit; The second fire control strategy also includes the control module sending the fire signal to shut down the ventilation unit and start the fire extinguishing unit.

8. A fire fighting method for a mobile device, characterized in that: The fire fighting method of the mobile device comprises: Detecting flammable components of mobile devices to obtain characteristic data of flammable components; Used to determine the fire warning level of the mobile device according to the characteristic data of the flammable component; A corresponding fire control strategy is determined according to the fire warning level, and at least part of the branches of the power supply circuit of the mobile device are shut down according to the fire control strategy, and sound and light alarms and fire fighting are performed.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the fire fighting method of the mobile device according to claim 8 is implemented.

10. A mobile device, characterized in that: The mobile device comprises the fire fighting system of the mobile device according to any one of claims 1-7.

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