Parking space fire-fighting induction fire extinguishing device and method

Abstract

The invention discloses a parking space fire-fighting induction fire extinguishing device which comprises a fire extinguishing unit, the fire extinguishing unit comprises a foundation, a plurality of parking spaces are arranged on the foundation, a plurality of distributed temperature sensing array devices are arranged on the peripheries of the parking spaces, annular grooves are formed in the inner sides of the parking spaces, and water hoses are spirally wound in the annular grooves; a plurality of nozzles are annularly arranged on the uppermost water hose, an electric telescopic gate plate is arranged at the top of the annular groove, an electric valve is arranged at the joint of the water hose and an external waterway, and a plurality of unmanned aerial vehicle nests are formed in one side of the foundation. According to the invention, through the innovative architecture of precise classification, dynamic isolation and air-ground cooperation, the problems of response delay, resource waste and complicated fire fighting in parking space fire fighting are solved, and the system has high reliability, economical efficiency and environmental friendliness.

Description

Technical Field

[0001] The present invention relates to the technical field of fire fighting, and particularly relates to a fire induction extinguishing device and method for parking spaces. Background Art

[0002] With the acceleration of the urbanization process, the number of motor vehicles has increased sharply, the trend of parking space densification is significant, and vehicle spontaneous combustion accidents occur frequently. In particular, the fire risk caused by the thermal runaway of new energy vehicle batteries has become increasingly prominent. Traditional parking space fire protection systems mostly rely on fixed sprinkler devices or handheld fire extinguishing equipment.

[0003] Most of the existing methods for spontaneous combustion of vehicles in parking spaces adopt the sprinkler extinguishing method. The non-discriminatory sprinkling in the whole area consumes a large amount of water, and the penetration of the fire source in the enclosed space (such as the battery compartment) is insufficient. At the same time, the flame is easily spread to adjacent vehicles through ground oil stains or splashes, lacking an active isolation mechanism. Summary of the Invention

[0004] The purpose of this part is to outline some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this part, as well as in the abstract and title of the present application, to avoid obscuring the purpose of this part, the abstract, and the title. However, such simplifications or omissions cannot be used to limit the scope of the present invention.

[0005] To solve the above technical problems, the present invention provides the following technical solutions:

[0006] In the first aspect, the present invention provides a fire induction extinguishing device for parking spaces, including:

[0007] An extinguishing unit, including a foundation, on which a plurality of parking spaces are provided. A plurality of distributed temperature sensing array devices are arranged around the parking spaces. An annular groove is formed inside the parking spaces, and a water belt is arranged in the annular groove. The water belt is integrally arranged in a spiral winding manner. A plurality of nozzles are annularly arranged on the topmost layer of the water belt. An electric telescopic gate is arranged at the top of the annular groove. An electric valve is arranged at the connection between the water belt and the external waterway. A plurality of drone nests are arranged on one side of the foundation;

[0008] An induction extinguishing system, specifically including:

[0009] An induction layer module: including a data acquisition unit, which collects data in real time and determines the level through distributed temperature sensing array devices deployed around the parking spaces. The collected data are all subjected to standardization processing; and a vehicle state monitoring unit, which is used to identify the vehicle type and vehicle position;

[0010] Control center module: It includes a fire grading unit and a dynamic decision-making unit. The fire grading unit determines the fire level based on the collected data, and the dynamic decision-making unit generates isolation and fire extinguishing instructions according to the fire source location;

[0011] Execution layer module: It includes an intelligent water wall generation unit and a drone cooperation unit. The intelligent water wall generation unit forms a water wall barrier around the parking space through water hoses and sprinkler heads, and the drone cooperation unit responds to a level-three fire and performs aerial fire extinguishing through drone nests and fire extinguishing bombs.

[0012] As a preferred solution of the parking space fire induction extinguishing device of the present invention, among them: the judgment of the fire level is based on the collected information and the fire is divided into three levels. The specific formula is as follows:

[0013]

[0014] Among them, T max is the highest temperature; is the co concentration change rate, S flame is the proportion of the flame area; α, β, γ are weight coefficients dynamically adjusted according to the vehicle type;

[0015] The specific threshold of the Level is as follows:

[0016] 50 ≤ Level < 120, it is a level-one fire;

[0017] 120 ≤ Level < 250, it is a level-two fire;

[0018] Level ≥ 250, it is a level-three fire.

[0019] As a preferred solution of the parking space fire induction extinguishing device of the present invention, among them: when any one of the temperature, co concentration change rate, and flame area exceeds the preset seriously exceeding standard threshold in the judgment of the fire level, the highest level response is forcibly triggered, and the threshold is dynamically set according to the vehicle type:

[0020] The temperature threshold for fuel vehicles ≥ 500 °C, and the temperature threshold for electric vehicles ≥ 400 °C;

[0021] The co concentration change rate threshold ≥ 100 ppm / s;

[0022] The proportion of the flame area ≥ 50%.

[0023] As a preferred solution of the parking space fire induction extinguishing device of the present invention, among them: the specific treatment method of the fire level is as follows:

[0024] Level-one fire: Trigger the water wall of this parking space, the height of the water wall is 1m, and start the local sound and light alarm;

[0025] Level 2 fire: Trigger the linkage of adjacent water walls, and at the same time, the height of the water wall in this parking space rises to 1.5 m;

[0026] Level 3 fire: Activate the high-voltage pulse mode and the drone cooperation mechanism;

[0027] The fire termination threshold is judged as follows: The Level value is continuously ≤ 50 for 5 minutes, which is much lower than the Level 1 fire threshold; Temperature: For fuel vehicles, T max ≤ 60 °C, for electric vehicles, T max ≤ 50 °C; co concentration ≤ 30 ppm; Flame area ≤ 0.5%.

[0028] As a preferred solution of the fire-fighting induction and extinguishing device for a parking space according to the present invention, wherein: The drone cooperation mechanism is specifically as follows:

[0029] Position transmission: The system transmits the fire source coordinates to the drone navigation module in real time;

[0030] Precise bombing: The drone is activated, carries the fire extinguishing bombs and flies above the fire source, and performs bombing based on the fire extinguishing bomb throwing priority algorithm;;

[0031] Secondary response: Judge the fire situation. If the fire has not reached the corresponding threshold, continue to call the drone for bombing.

[0032] As a preferred solution of the fire-fighting induction and extinguishing device for a parking space according to the present invention, wherein: The drone cooperation mechanism further includes:

[0033] Exception handling and fault tolerance: After the drone fails and the communication is interrupted for more than 10 s, the drone executes a preset safe path to return to the preset safe area of the drone nest, and releases the remaining fire extinguishing bombs to the safe area; The return path is encrypted and stored in the local PGA chip to prevent malicious hijacking.

[0034] As a preferred solution of the fire-fighting induction and extinguishing device for a parking space according to the present invention, wherein: The drone nest 108 of the drone cooperation unit is integrated at a certain place in the parking lot. The filling component of the fire extinguishing bomb is a mixture of ammonium dihydrogen phosphate, aerogel and nitrogen, and the drone is equipped with an infrared thermal imager and a visual recognition module for locking the position of the battery compartment or fuel tank.

[0035] As a preferred solution of the fire-fighting induction and extinguishing device for a parking space according to the present invention, wherein: The induction extinguishing system further includes: A communication and priority management module: A hybrid communication unit based on LoRa and Mesh networks, which coordinates the linkage of adjacent parking space water walls and the priority allocation of drones.

[0036] As a preferred solution of the fire induction extinguishing device for parking spaces according to the present invention, the induction extinguishing system further includes: an expansion layer module, including an emergency power supply unit for maintaining the operation of the system when power is cut off.

[0037] In a second aspect, the present invention provides a method for using a fire induction extinguishing device for parking spaces, including the following steps:

[0038] S1. The distributed temperature sensor array device monitors the temperature, smoke concentration, and CO concentration of the parking space in real time, and at the same time, the vehicle status detection unit obtains vehicle type information;

[0039] S2. Calculate the fire level in real time according to the collected information and trigger a hierarchical response and alarm mechanism;

[0040] S3. When a certain fire level is reached, the electric valve water wall of the corresponding parking space is opened to rise to isolate and extinguish the fire source;

[0041] S4. When the fire situation is upgraded, the fire source coordinates are transmitted to the UAV navigation module, and the UAV conducts bomb dropping to extinguish the fire;

[0042] S5. Detect the fire situation in real time, and stop the fire extinguishing measures periodically after the fire reaches the threshold.

[0043] Advantages of the present invention:

[0044] Through the innovative architecture of precise grading - dynamic isolation - air - ground cooperation, when a fire occurs, the present invention can accurately judge the fire situation and implement corresponding strategies, avoiding waste of water resources, linking the surrounding parking spaces according to the fire level to prevent the spread of fire, and at the same time, the air - ground cooperation fire extinguishing method, and the precise delivery of fire extinguishing bombs by the UAV further strengthens the problem of penetrating fire extinguishing for fire sources in enclosed spaces. Description of the drawings

[0045] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. Among them:

[0046] Figure 1 is a schematic diagram of the overall front structure of a fire induction extinguishing device for parking spaces proposed by the present invention;

[0047] Figure 2 is Figure 1 the rear view of;

[0048] Figure 3 is Figure 1 the partial cross - sectional structure diagram of;

[0049] Figure 4 It is the architecture diagram of the induction fire extinguishing system in a fire induction and extinguishing device for parking spaces proposed by the present invention;

[0050] Figure 5 It is the process architecture diagram of the induction fire extinguishing system of a fire induction and extinguishing device for parking spaces proposed by the present invention;

[0051] Figure 6 For Figure 5 It is the process architecture diagram of the UAV cooperation mechanism in

[0052] In the figure: 100, fire extinguishing unit; 101, foundation; 102, parking space; 103, annular groove; 104, water hose; 105, nozzle; 106, electric telescopic gate; 107, electric valve; 108, UAV nest; 109, distributed temperature sensor array device. Detailed implementation manners

[0053] To make the above objects, features and advantages of the present invention more obvious and understandable, the following will describe the detailed implementation manners of the present invention with reference to the accompanying drawings of the specification.

[0054] Many specific details are set forth in the following description in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0055] Referring to Figures 1-6 , the present invention provides a fire induction and extinguishing device for parking spaces, including:

[0056] A fire extinguishing unit 100, including a foundation 101, on which a plurality of parking spaces 102 are provided. A plurality of distributed temperature sensor array devices 109 are arranged around the parking spaces 102. An annular groove 103 is formed inside the parking spaces 102. A water hose 104 is arranged in the annular groove 103. The water hose 104 is integrally arranged in a spiral winding manner. A plurality of nozzles 105 are annularly arranged on the uppermost layer of the water hose 104. An electric telescopic gate 106 is arranged at the top of the annular groove 103. An electric valve 107 is arranged at the connection between the water hose 104 and the external water circuit. The water source in the water hose 104 is supplied by an external water pump and the water pressure is adjusted. A plurality of UAV nests 108 are arranged on one side of the foundation 101;

[0057] An induction fire extinguishing system 200, specifically including:

[0058] Induction layer module: It includes a data acquisition unit that collects data in real time and determines the level through a distributed temperature sensor array device 109 deployed around the parking spaces, and the collected data are all subjected to standardized processing; and a vehicle status monitoring unit for identifying the vehicle type and vehicle position.

[0059] Control center module: It includes a fire classification unit and a dynamic decision-making unit. The fire classification unit determines the fire level based on the collected data, and the dynamic decision-making unit generates isolation and fire extinguishing instructions according to the fire source position.

[0060] The judgment of the fire level is based on the collected information and divides the fire into three levels. The specific formula is as follows:

[0061]

[0062] Among them, T max is the highest temperature; is the change rate of co concentration, S flame is the proportion of the flame area; α, β, γ are weight coefficients dynamically adjusted according to the vehicle type; α, β, γ are dynamically allocated according to the vehicle type, reflecting the differential judgment logic. For fuel vehicles, α = 0.4; β = 0.5; γ = 0.1, focusing on the change of co concentration; for electric vehicles, α = 0.7; β = 0.2; γ = 0.1, focusing on temperature monitoring because the battery soars too fast due to thermal runaway.

[0063] The specific threshold of Level is as follows:

[0064] 50 ≤ Level < 120, it is a first-level fire;

[0065] 120 ≤ Level < 250, it is a second-level fire;

[0066] Level ≥ 250, it is a third-level fire;

[0067] In the judgment of the fire level, when any one of the parameters of temperature, co concentration change rate and flame area exceeds the preset seriously exceeding threshold, the highest-level response is forcibly triggered, and the threshold is dynamically set according to the vehicle type:

[0068] For fuel vehicles, the temperature threshold ≥ 500 °C, which is the critical temperature for the explosion caused by the combustion of the fuel tank. According to the flash point of gasoline about 280 °C and the lower explosion limit of 1.4% volume concentration in the flammable liquid specification, 500 °C is the safety redundancy design threshold; for electric vehicles, the temperature threshold ≥ 400 °C. Based on the UL 9540A battery thermal runaway test data, the surface temperature of the battery module can reach more than 600 °C after thermal runaway, and 400 °C is set as the early forced response threshold.

[0069] The CO concentration change rate threshold ≥ 100 ppm / s. According to the ISO 13571 fire toxicity model, when the CO concentration growth rate > 100 ppm / s, the personnel evacuation time is less than 60 s, and the highest response needs to be immediately initiated;

[0070] The proportion of the flame area ≥ 50%. When the flame area exceeds 50%, that is, when the flame covers more than half of the parking space projection area, the fire is very likely to break through the water wall isolation, and external fire-fighting facilities need to be linked;

[0071] Examples are as follows: When a fuel vehicle catches fire, T max = 400 °C, S flame = 40%;

[0072] Weight substitution: Level = 0.4·400 + 0.5·80 + 0.1·50 = 160 + 40 + 5 = 205;

[0073] Judgment result: Level 3 fire, 205 < 350;

[0074] That is, when a single parameter exceeds the preset severe over-standard threshold, the reference level calculation result is not considered, and the highest level response is forcibly triggered;

[0075] The execution layer module: includes an intelligent water wall generation unit and a drone cooperation unit. The intelligent water wall generation unit forms a water wall barrier around the parking space through the water hose 104 and the nozzle 105. The drone cooperation unit responds to the Level 3 fire and performs aerial fire extinguishing through the drone nest 108 and the fire extinguishing bombs;

[0076] The specific treatment methods for the fire levels are as follows:

[0077] Level 1 fire: Trigger the water wall of this parking space. The height of the water wall is 1 m, which isolates a single vehicle to prevent the fire from spreading to surrounding vehicles. Only activate the water hose of this parking space to avoid wasting water resources caused by large-scale spraying; Start the local audible and visual alarm and notify the staff and the external patrol robot. After receiving the notice, the patrol robot comes to the scene to observe the situation on the site. The staff can observe the fire situation on the site through the patrol robot, and the staff does not need to reach the fire site to avoid harm to the staff;

[0078] Level 2 fire: Trigger the linkage of adjacent water walls, and at the same time, the height of the water wall of this parking space rises to 1.5 m; The adjacent water walls form an "isolation buffer zone" to block the spread of the fire through ground oil stains or splashes. The height of the water wall rises from 1 m to 1.5 m to strengthen the suppression effect on the fire lift;

[0079] Level 3 fire: Activate the high-pressure pulse mode and the drone cooperation mechanism; Increase the water pressure to make the height of the water wall rise again. At the same time, the drone bypasses the water wall and accurately drops bombs from the air to ensure the fire extinguishing effect of the fire;

[0080] The fire termination threshold is judged as follows: the Level value is continuously ≤ 50 for 5 minutes, which is much lower than the first-level fire threshold; Temperature: for fuel vehicles, T max ≤ 60°C, for electric vehicles, T max ≤ 50°C; co concentration ≤ 30 ppm; flame area ≤ 0.5%; The example is as follows: after the electric vehicle is extinguished, the Level value drops to 40, but the temperature of the battery compartment is still 70°C. The system maintains monitoring and continues to maintain the fire extinguishing measures until it meets the standards;

[0081] The specific drone cooperation mechanism is as follows:

[0082] Position transmission: The system transmits the fire source coordinates to the drone navigation module in real time; The drone is equipped with an infrared thermal imager and an edge computing module, which compares the fire source coordinates provided by the temperature sensor array in real time, so that the positioning error < 20 cm, avoiding visual misjudgment caused by the water wall obstruction;

[0083] Precise bombing: The drone starts, flies to the fire source with fire extinguishing bombs, and performs bombing based on the fire extinguishing bomb throwing priority algorithm; The fire extinguishing bomb throwing priority algorithm is based on the fire heat distribution map and calculates the bombing priority according to the following formula: Where: T local is the local temperature; T max is the current highest temperature; S critical is the projected area of key components such as the battery compartment and fuel tank; S total is the current total fire area; k is the weighted coefficient of electric vehicles, which is 1 in the fuel vehicle scenario and 2 in the electric vehicle scenario. Priority is sorted according to the calculation results, and bombing is given priority to the highest-level targets;

[0084] Secondary response: Judge the fire situation. If the fire has not reached the corresponding threshold, continue to call the drone for bombing; The Level value continues to be ≤ 150 for more than 3 minutes. The system recalculates the Level value every 30 s. When the calculation results of 6 consecutive times are all ≤ 150, a termination instruction is triggered; Key parameters reach the safety threshold: for fuel vehicles, T max ≤ 100°C, for electric vehicles, T max ≤ 80°C; The co concentration change rate of 5 consecutive sampling values ≤ 5 ppm / s is close to the environmental baseline; Flame area ≤ 2%; Through multi-parameter cross-verification, the false termination rate < 1%. If the fire reaches the corresponding threshold, the deployed drones return after completing the bombing operation;

[0085] The drone cooperation mechanism also includes:

[0086] Exception Handling and Fault Tolerance: After the communication of the UAV fails and is interrupted for more than 10 seconds, the UAV executes the preset safe path to return to the preset safe area of the UAV nest 108, and releases the remaining fire extinguishing bombs to the safe area; the return path is encrypted and stored in the local PGA chip to prevent malicious hijacking; avoid the UAV becoming a secondary disaster source after losing contact, and at the same time avoid damaging the UAV nest;

[0087] The UAV nest 108 of the UAV cooperation unit is integrated at a certain place in the parking lot. The filling component of the fire extinguishing bomb is a mixture of ammonium dihydrogen phosphate, aerogel and nitrogen. The UAV is equipped with an infrared thermal imager and a visual recognition module for locking the position of the battery compartment or fuel tank. The design of the centralized UAV nest supports multiple parking spaces sharing the same nest, enabling centralized storage and loading of fire extinguishing bombs, reducing the need for maintenance manpower; the mixture of ammonium dihydrogen phosphate flame retardant + aerogel heat insulation + nitrogen inerting, with a mass ratio of 40%:30%:30%. The aerogel forms a heat insulation layer, inhibiting the spread time of battery thermal runaway ≥ 15 minutes. Nitrogen rapidly reduces the oxygen concentration, making the re-ignition rate ≤ 3%; the infrared thermal imager and visual recognition module can accurately lock the battery compartment / fuel tank, increasing the hit rate of the fire extinguishing bomb to 90, and it can still be operated at night or in a smoky environment. The all-weather availability of the system > 99%;

[0088] Communication and Priority Management Module: A hybrid communication unit based on LoRa and Mesh networks coordinates the linkage of the water walls in adjacent parking spaces and the priority allocation of UAVs;

[0089] Expansion Layer Module: Includes an emergency power supply unit for maintaining the operation of the system during power outages.

[0090] During use, the distributed temperature and fire sensor array device 109 monitors the temperature, smoke concentration and CO concentration of the parking space in real time. At the same time, the vehicle status detection unit obtains the vehicle type information; calculates the fire level in real time according to the collected information and triggers a hierarchical response and alarm mechanism; when a certain fire level is reached, the electric valve 107 of the corresponding parking space 102 is opened to raise the water wall to isolate and extinguish the fire source; when the fire situation escalates, the fire source coordinates are transmitted to the UAV navigation module, and the UAV conducts bombing to extinguish the fire; the fire situation is detected in real time, and the fire extinguishing measures are stopped periodically after the fire reaches the threshold.

[0091] In summary, through the innovative architecture of precise grading - dynamic isolation - air-ground cooperation, the present invention solves the problems of response lag, resource waste and complex fire fighting in parking space fire protection, and has high reliability, economy and environmental friendliness.

[0092] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A fire induction extinguishing device for a parking space, characterized in that: Comprising: A fire extinguishing unit (100), including a foundation (101), on which a plurality of parking spaces (102) are provided. A plurality of distributed temperature sensing array devices (109) are arranged around the parking spaces (102). An annular groove (103) is formed inside the parking spaces (102). A water hose (104) is arranged in the annular groove (103). The water hose (104) is integrally arranged in a spiral coil. A plurality of nozzles (105) are annularly arranged on the uppermost layer of the water hose (104). An electric telescopic gate (106) is arranged at the top of the annular groove (103). An electric valve (107) is arranged at the connection of the water hose (104) and the external waterway. A plurality of drone nests (108) are arranged on one side of the foundation (101); An induction fire extinguishing system (200), specifically including: An induction layer module: including a data acquisition unit, which collects data in real time and determines the level through the distributed temperature sensing array devices (109) deployed around the parking spaces. The collected data are all subjected to standardization processing; And a vehicle status monitoring unit, which is used to identify the vehicle type and vehicle position; A control center module: including a fire situation grading unit and a dynamic decision-making unit. The fire situation grading unit determines the fire situation level based on the collected data. The dynamic decision-making unit generates isolation and fire extinguishing instructions according to the fire source position; An execution layer module: including an intelligent water wall generation unit and a drone cooperation unit. The intelligent water wall generation unit forms a water wall barrier around the parking spaces through the water hose (104) and the nozzles (105). The drone cooperation unit responds to a level-three fire situation and performs aerial fire extinguishing through the drone nests (108) and fire extinguishing bombs.

2. The fire induction extinguishing device for a parking space according to claim 1, wherein: The judgment of the fire situation level is based on the collected information and divides the fire situation into three levels. The specific formula is as follows: Among them, T max is the highest temperature; is the CO concentration change rate, and S flame is the proportion of the flame area; α, β, and γ are weight coefficients dynamically adjusted according to the vehicle type; The specific threshold of the Level is as follows: 50 ≤ Level < 120, it is a level-one fire situation; 120 ≤ Level < 250, it is a level-two fire situation; Level ≥ 250, it is a level-three fire situation.

3. The fire induction extinguishing device for a parking space according to claim 2, wherein: In the judgment of the fire situation level, when any one of the parameters of temperature, co concentration change rate, and flame area exceeds the preset seriously exceeding standard threshold, the highest-level response is forcibly triggered. The threshold is dynamically set according to the vehicle type: The temperature threshold for fuel vehicles ≥ 500 °C; the temperature threshold for electric vehicles ≥ 400 °C; The co concentration change rate threshold ≥ 100 ppm / s; The proportion of the flame area ≥ 50%.

4. The fire induction extinguishing device for a parking space according to claim 3, characterized in that: The specific processing method of the fire situation level is as follows: Level-one fire situation: Trigger the water wall of this parking space, the height of the water wall is 1 m, and start the local sound and light alarm; Level-two fire situation: Trigger the linkage of adjacent water walls, and at the same time, the height of the water wall of this parking space rises to 1.5 m; Level-three fire situation: Activate the high-voltage pulse mode and the drone cooperation mechanism; The fire termination threshold is determined as follows: The Level value is ≤ 50 for 5 consecutive minutes; Temperature: for fuel vehicles, T max ≤ 60°C, and for electric vehicles, T max ≤ 50°C; CO concentration ≤ 30 ppm; Flame area ≤ 0.5%.

5. A fire induction extinguishing device for a parking space according to claim 1, characterized in that: The specific drone cooperation mechanism is as follows: Position transmission: The system transmits the fire source coordinates to the drone navigation module in real time; Precise bomb throwing: The drone starts, flies to above the fire source with the fire extinguishing bomb, and performs throwing based on the fire extinguishing bomb throwing priority algorithm; Secondary response: Judge the fire situation. If the fire situation does not reach the corresponding threshold, continue to call the drone to perform bomb throwing.

6. The fire induction extinguishing device for a parking space according to claim 5, characterized in that: The drone cooperation mechanism also includes: Exception Handling and Fault Tolerance: After the communication of the UAV fails and is interrupted for more than 10 seconds, the UAV executes a preset safe path to return to the preset safe area of the UAV nest (108), and releases the remaining fire extinguishing bombs to the safe area; the return path is encrypted and stored in the local PGA chip to prevent malicious hijacking.

7. A fire induction extinguishing device for a parking space according to claim 6, characterized in that: The UAV nest (108) of the UAV cooperation unit is integrated at a certain place in the parking lot. The filling component of the fire extinguishing bomb is a mixture of ammonium dihydrogen phosphate, aerogel and nitrogen. The UAV is equipped with an infrared thermal imager and a visual recognition module for locking the position of the battery compartment or fuel tank.

8. A fire induction extinguishing device for a parking space according to claim 7, characterized in that: The induction fire extinguishing system further includes: a communication and priority management module: a hybrid communication unit based on LoRa and Mesh networks, which coordinates the linkage of the water walls of adjacent parking spaces and the priority allocation of UAVs.

9. The fire induction extinguishing device for a parking space according to claim 8, characterized in that: The induction fire extinguishing system further includes: an expansion layer module: including an emergency power supply unit for maintaining the operation of the system when power is cut off.

10. A method for using a fire induction extinguishing device for a parking space, based on a fire induction extinguishing device for a parking space according to any one of claims 1-7, characterized in that, It includes the following steps: S1. The distributed temperature sensor array device (109) monitors the temperature, smoke concentration and CO concentration of the parking space in real time. At the same time, the vehicle status detection unit obtains the vehicle type information. S2. Calculate the fire level in real time according to the collected information and trigger a hierarchical response and alarm mechanism. S3. When a certain fire level is reached, the electric valve (107) of the corresponding parking space (102) is opened, and the water wall rises to isolate and extinguish the fire source. S4. When the fire situation is upgraded, the fire source coordinates are transmitted to the UAV navigation module, and the UAV conducts bombing fire extinguishing. S5. Detect the fire situation in real time, and stop the fire extinguishing measures periodically after the fire situation reaches the threshold.

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