Automatic fire monitor fire extinguishing system

Abstract

The invention relates to the technical field of intelligent fire fighting, and discloses an automatic fire monitor fire extinguishing system, comprising: a layout module comprising a main water pipe, a proportioning mixer and a foam liquid storage tank; the foam liquid storage tank is communicated with the proportioning mixer; the main water pipe is respectively communicated with the proportioning mixer and the second three-way valve through the first three-way valve, a water outlet of the proportioning mixer is communicated with the second three-way valve, a water outlet of the second three-way valve is divided into a plurality of branches through pipelines, and the tail end of each branch is connected with a fire monitor group; the fire monitor set comprises a plurality of fire monitors connected in parallel and a pressure adjusting pump connected with the fire monitors in series. The fire behavior detection modules are used for monitoring fire behavior information in real time, identifying a fire disaster and sending out a fire behavior signal, and each cell is provided with the fire behavior detection module; the fire-fighting control module is used for receiving the fire behavior signal and remotely sending an instruction to control each execution assembly; the problems that an existing single fire extinguishing system is single in fire extinguishing form and cannot deal with complex fire situations are solved.

Description

Technical Field

[0001] The present invention relates to the field of intelligent firefighting, and in particular to an automatic fire cannon fire extinguishing system. Background Art

[0002] In modern firefighting technology, the diversity of fire extinguishing systems provides a variety of options for fire fighting in different scenarios. At present, common fire extinguishing methods include water spraying, foam fire extinguishing, etc. Each fire extinguishing method has its own unique fire extinguishing principle and advantages.

[0003] The water sprinkler system is one of the most traditional fire extinguishing methods. Its principle is to spray water onto the fire source under high pressure, using the cooling effect of water to reduce the temperature of the burning material. At the same time, water absorbs a large amount of heat when evaporating, which helps to quickly reduce the temperature of the fire scene, thereby achieving the purpose of extinguishing the fire. The advantages of the water sprinkler system are high fire extinguishing efficiency, low cost, and a wide range of water sources. However, it is not suitable for all fire scenes, especially oil and electrical fires, because water may conduct electricity or aggravate the spread of fire.

[0004] Foam fire extinguishing system is suitable for oil fire. Foam can cover the surface of burning objects, isolate the air, and cool the burning objects to achieve the effect of fire extinguishing. The advantage of foam fire extinguishing is that it can quickly control the fire and reduce the damage to the surrounding environment. However, the foam fire extinguishing system requires professional equipment and operation, and the cleanup work after fire extinguishing is relatively complicated.

[0005] However, the current single fire extinguishing system can only achieve one form of fire extinguishing, which has certain limitations in practical applications. Especially when facing complex fire situations, such as places such as thermal oil storage tanks and thermal oil boiler rooms, it is very difficult to extinguish the fire. These places involve flammable and explosive substances such as high-temperature thermal oil and liquid asphalt, and thermal oil boilers usually use natural gas to burn and heat thermal oil, which has a very high risk of fire. Once a fire occurs, the fire often spreads rapidly and is accompanied by the risk of explosion.

[0006] In addition, structures such as high-rise factory buildings are three-dimensional structures, and the equipment on each floor is complex and densely distributed, especially key facilities such as thermal oil pipelines and heating equipment, which are highly complex and have great safety hazards. In such an environment, a single fire extinguishing system is often difficult to effectively deal with fires. For example, a water sprinkler system may not be used due to the presence of electrical equipment; although the foam fire extinguishing system is suitable for oil fires, the stability of the foam will be affected in high temperature environments. Summary of the invention

[0007] The present invention is intended to provide an automatic fire cannon fire extinguishing system to solve the problem that the existing single fire extinguishing system has a single fire extinguishing form and cannot cope with complex fire situations.

[0008] To achieve the above object, the present invention adopts the following technical solution: an automatic fire cannon fire extinguishing system, comprising:

[0009] The deployment module includes a main water pipe for leading water source to the fire extinguishing system, a proportioning mixer for mixing foam liquid and water in proportion, a foam liquid storage tank for providing foam liquid to the proportioning mixer, a first three-way valve and a second three-way valve; the foam liquid storage tank is connected to the liquid inlet of the proportioning mixer through a pipeline, and the main water pipe is also provided with a first valve for controlling the flow of water source; the water inlet of the first three-way valve is connected to the main water pipe, and the two water outlets of the first three-way valve are respectively connected to the water inlet of the proportioning mixer and one water inlet of the second three-way valve through pipelines; the other water inlet of the second three-way valve is connected to the mixed liquid outlet of the proportioning mixer, and the water outlet of the second three-way valve is divided into multiple branches through pipelines, and the ends of each branch are connected to a fire gun group; the fire gun group includes multiple parallel fire guns with adjustable directions and a pressure regulating pump connected in series with multiple fire guns; multiple adjacent cells are divided according to the area of ​​the indoor space, and a group of fire gun groups are installed in each cell, and each group of fire gun groups can work independently;

[0010] Fire detection module, used to monitor fire information in real time, identify fire, and send out fire signals. Each cell is equipped with a fire detection module;

[0011] The fire control module is used to receive fire signals and remotely issue instructions to control each execution component, the execution components include a first valve, a second valve, a first three-way valve, a second three-way valve, a pressure regulating pump and a fire monitor, wherein the fire control module is connected to each execution component through electrical signals, and is used to issue instructions to control the connectivity status of each valve and three-way valve, control the liquid supply pressure of the pressure regulating pump, and control the deflection angle of the fire monitor.

[0012] The principle and advantages of this solution are: in actual application, according to the fire situation, the fire control module can choose water fire extinguishing or foam fire extinguishing mode and send corresponding instructions to each execution component;

[0013] Water extinguishing: In the early stage of a fire or a solid fire, water extinguishing is selected. The fire control module opens the first valve, closes the second valve, adjusts the three-way valve to connect the main water pipe with the second pipeline, and then directly passes the mixed liquid to the fire monitor group through the second three-way valve. The pressure regulating pump and fire monitor adjust the pressure and spray angle according to the instructions.

[0014] Foam fire extinguishing: In case of liquid fire or fire spreading, foam fire extinguishing is selected. The fire control module opens the first valve and the second valve at the same time, adjusts the three-way valve to connect the main water pipe with the first pipeline, and then passes the mixed liquid (foam liquid and water) to the fire monitor group through the second three-way valve. Similarly, the pressure regulating pump and fire monitor are adjusted according to the instructions.

[0015] Water sprinklers cool down and extinguish solid fires in the early stage, slowing down the spread of fire. Foam fire extinguishing then extinguishes liquid fires, controls the spread of fire, and prevents further expansion of fire. The system combines the advantages of water sprinklers and foam fire extinguishing, and can quickly control the fire and reduce the damage to people and property caused by fire. The system is also divided into multiple cells according to the indoor space, and each cell is equipped with a group of fire guns to work independently. This design enables the system to flexibly respond to fire conditions in different areas and improve fire extinguishing efficiency. The system adopts a modular design, and each component works independently, which reduces the failure rate and improves the overall reliability of the system. The fire control module judges the fire situation through intelligent algorithms, automatically selects the optimal fire extinguishing method, and issues instructions to each execution component to achieve rapid response and efficient fire extinguishing.

[0016] Preferably, as an improvement, the system further comprises a fire intensity calculation module;

[0017] The fire detection module collects flame data at the fire scene, the flame data including color images, thermal imaging images, smoke concentration and wind direction information;

[0018] The fire intensity calculation module obtains flame data from each flame detection module and inputs the flame data into the fire target detection algorithm. The gradient of the flame area is calculated by the bounding box of the flame area and the flame pixel distribution. Gradient of the flame area The calculation formula is:

[0019]

[0020] Where I is the image intensity of the flame area, and are the gradients of the image in the horizontal and vertical directions respectively;

[0021] Get the wind direction vector through wind direction information The smoke vector can be obtained by measuring the smoke concentration in multiple cell areas The direction of fire spread is calculated by the gradient of the flame area, wind direction and smoke direction Fire spread direction The calculation formula is:

[0022]

[0023] Among them, a, b and c are the weights of the gradient of the flame area, wind direction and smoke direction, and the direction of fire spread Perform normalization processing,

[0024] Divide the indoor space into M×N cells, each of which is Δx×Δy in size; then calculate the relative position vector between the center point of each cell and the fire source position Relative position vector The calculation formula is:

[0025]

[0026] Among them, (x i ,y i ) is the coordinate of the center point of the cell, (x fire ,y fire ) is the fire source location, which is the location with the highest temperature in the flame area;

[0027] Calculate the nozzle direction θ of each cell's fire monitor i , the direction of the fire monitor nozzle θ i The calculation formula is:

[0028]

[0029] The fire intensity calculation module transmits the calculation results to the fire control module. The fire control module encodes the corresponding instructions through the calculation results and sends them to the corresponding actuators. Each fire cannon in the cell deflects the direction of the cannon head according to the instructions.

[0030] The beneficial effect of this improvement is that by accurately calculating the direction of fire spread and the direction of the fire monitor's nozzle, the system can quickly spray the fire extinguishing medium to the fire source area, thereby significantly improving the efficiency of fire extinguishing. Accurate fire extinguishing methods and rapid response speed help reduce damage to personnel and property caused by fire, and reduce the economic losses and social impact caused by fire. The integration of the fire calculation module and the fire control module realizes the intelligence and automation of the system, reduces the possibility of manual intervention and misoperation, and improves the reliability and stability of the system. This improvement scheme is suitable for various complex fire scenarios, including heat transfer oil storage tanks, heat transfer boiler rooms, and high-rise factory buildings, etc., and has high practical value and promotion prospects.

[0031] Preferably, as an improvement, the flame data also includes oxygen concentration;

[0032] The fire intensity calculation module obtains the number of flame pixels and the total number of pixels through the fire target detection algorithm and calculates the flame area ratio A f , flame area ratio A f The calculation formula is:

[0033]

[0034] Calculate the spray pressure P of the fire monitor in each cell i , the spray pressure P of the fire monitor iThe calculation formula is:

[0035]

[0036] Among them, P0 is the preset basic nozzle pressure; α and β are adjustment parameters; A f is the percentage of flame area; is the distance between the cell and the fire source; is the oxygen concentration detected by the cell; It is the preset maximum value of oxygen concentration.

[0037] The beneficial effect of this improvement is that by considering the oxygen concentration, the system can more accurately judge the combustion situation at the fire scene, thereby calculating a more appropriate injection pressure to ensure that the fire extinguishing medium can more effectively cover the fire source area. Accurate injection pressure calculation can avoid over-injection, reduce water waste, and reduce interference with the surrounding environment. The system can automatically adjust the injection pressure according to the actual situation of different fire scenes to adapt to various complex scenarios.

[0038] Preferably, as an improvement, the fire intensity calculation module is The cells located in the direction of fire spread are determined by using the coordinates of the cell center position, and the pressure of the cells in the direction of fire spread is adjusted;

[0039]

[0040] in, is the injection pressure of the cell in the direction of fire spread, and γ is the pressure regulation ratio.

[0041] The beneficial effect of this improvement is that by adjusting the injection pressure of the cells in the direction of fire spread, the system can form a certain pressure difference on the path of flame spread, thereby guiding the fire extinguishing medium to cover the flame area more effectively and realize the coordinated fire extinguishing of each cell. In the flame area in the direction of spread, the firefighting injection pressure in front, behind, left, right and directly above can form a certain gradient. The injection pressure in the front and directly above the direction of spread is relatively large to quickly suppress the flame; while the injection pressure in the remaining circumferential directions is moderate to control the lateral spread of the flame. This coordination method avoids mutual interference between the injection pressures of different cells and ensures the fire extinguishing effect.

[0042] Preferably, as an improvement, the fire intensity calculation module is and preset thresholds to determine cells that are closer to the fire source, and adjust the pressure of cells that are closer to the fire source;

[0043]

[0044] in, is the injection pressure of the cell closer to the fire source, and δ is the pressure adjustment ratio.

[0045] The beneficial effect of this improvement is that by increasing the injection pressure of cells closer to the fire source, the system can act more directly on the fire source location and improve the fire extinguishing efficiency. In the flame area of ​​the fire source location, the firefighting injection pressures in front, behind, left, right and directly above can form a close match to ensure that the fire extinguishing medium can fully cover the fire source area. At the same time, by adjusting the injection pressure of different cells, the mutual interference of the injection pressures between different cells is avoided, ensuring the high efficiency of the fire extinguishing effect.

[0046] Preferably, as an improvement, the fire intensity calculation module transmits the calculation result to the fire control module, and the calculation result includes the nozzle direction θ of each cell fire monitor i , the spray pressure P of the fire monitor in each cell i , cell information of the direction of fire spread, cell information close to the fire source, injection pressure of cells in the direction of fire spread and the injection pressure of cells closer to the fire source The fire control module encodes the corresponding instructions through the calculation results and sends them to the corresponding actuators. Each fire monitor in the cell deflects the direction of the gun head according to the instructions, and the corresponding pressure regulating pump of the cell adjusts the working power according to the instructions.

[0047] The beneficial effect of this improvement is that through comprehensive calculation results, the system can achieve precise control of the fire monitor in each cell, including the direction of the nozzle and the injection pressure. This precise control ensures that the fire extinguishing medium can accurately cover the fire source area and improve the fire extinguishing efficiency. Since the system can calculate and adjust the nozzle direction and injection pressure of the fire monitor in real time, it can quickly respond to changes in the fire scene and ensure the fire extinguishing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 It is a schematic structural diagram of an embodiment of the present invention. DETAILED DESCRIPTION

[0049] The following is further described in detail through specific implementation methods:

[0050] The figure marks in the drawings of the specification include: main water pipe 1, proportioning mixer 2, foam liquid storage tank 3, first valve 4, first three-way valve 5, first pipeline 6, second valve 7, second pipeline 8, second three-way valve 9, fire gun group 10, fire gun 11, pressure regulating pump 12 and fire control module 13.

[0051] Example 1

[0052] An automatic fire cannon fire extinguishing system, comprising:

[0053] Layout modules, basically as attached Figure 1 As shown, it includes a main water pipe 1 for leading water source to the fire extinguishing system, a proportioning mixer 2 for mixing foam liquid and water in proportion, a foam liquid storage tank 3 for providing foam liquid to the proportioning mixer 2, and a plurality of fire monitors 11 with adjustable directions.

[0054] One end of the main water pipe 1 is connected to the water source end of the fire extinguishing system to provide water for the entire fire extinguishing system. The main water pipe 1 is provided with a first valve 4 for controlling the flow of the entire water source. The other end of the main water pipe 1 is connected to a first three-way valve 5, which includes two water outlets and one water inlet. The valve core of the first three-way valve 5 controls the water inlet to be connected to one of the water outlets.

[0055] The water inlet of the first three-way valve 5 is connected to the main water pipe 1, one of the water outlets of the first three-way valve 5 is connected to the water inlet of the proportioning mixer 2 through the first pipeline 6, the foam liquid storage tank 3 is connected to the liquid inlet of the proportioning mixer 2 through the pipeline, and a second valve 7 is also provided between the foam liquid storage tank 3 and the proportioning mixer 2; the other water outlet of the first three-way valve 5 is connected to the second three-way valve 9 through the second pipeline 8. The second three-way valve 9 includes two water inlets and one water outlet, and the valve core of the second three-way valve 9 controls the water outlet to be connected to one of the water inlets. The second pipeline 8 is connected to one of the water inlets of the second three-way valve 9. The mixed liquid outlet of the proportioning mixer 2 is connected to the other water inlet of the second three-way valve 9 through the first pipeline 6.

[0056] The water outlet of the second three-way valve 9 is divided into multiple branches through pipelines, and the ends of each branch are connected to a fire monitor group 10. The fire monitor group 10 includes multiple parallel fire monitors 11 with adjustable directions and a pressure regulating pump 12 connected in series with multiple fire monitors 11. Multiple adjacent cells are divided according to the area of ​​the indoor space, and a group of fire monitor groups 10 are installed in each cell. Each group of fire monitor groups 10 can work independently to achieve accurate strikes on fire sources in their respective responsible areas.

[0057] The fire detection module is used to monitor fire information, identify fire, and send out fire signals. Each cell is equipped with a fire detection module. When the fire detection module identifies a fire, it quickly sends a fire signal to the fire control module 13.

[0058] The fire detection module includes but is not limited to smoke detectors and flame detectors. Smoke detectors can keenly sense changes in the concentration of smoke particles in the air. Once the concentration exceeds the preset threshold, it is considered a potential fire risk and immediately sends out a fire signal. Flame detectors directly observe the presence of visible flames and use photoelectric effects or image processing technology to immediately trigger an alarm once the flame characteristics are identified.

[0059] The fire control module 13 is used to receive fire signals and remotely issue commands to control each actuator; the fire control module 13 is electrically connected to the first valve 4, the second valve 7, the first three-way valve 5 and the second three-way valve 9, and is used to issue switch commands to control the connection of each valve and three-way valve. The fire control module 13 is electrically connected to the pressure regulating pump 12, and is used to control the liquid supply pressure of the pressure regulating pump 12. The fire control module 13 is electrically connected to the fire monitor 11, and is used to control the deflection angle of the fire monitor 11.

[0060] Application of automatic fire cannon 11 fire extinguishing system:

[0061] When a fire signal occurs in the area where one or more cells are located, the staff will decide whether to use water or foam to extinguish the fire based on the current fire situation.

[0062] Situations for using water to extinguish fires: (1) Initial cooling: In the early stages of a fire, using water can effectively reduce the temperature of the fire source and its surroundings, slowing the spread of the fire and creating favorable conditions for the subsequent use of foam fire extinguishing. (2) Extinguishing solid fires: When the fire mainly involves solid materials, water can be used as the main extinguishing medium. Water can absorb a large amount of heat, thereby reducing the temperature of the burning material and achieving the purpose of extinguishing the fire.

[0063] Situations for using foam to extinguish fires: (1) Fighting liquid fires: Foam fire extinguishing systems are particularly suitable for fighting Class A, B, and C liquid fires, such as fires of flammable liquids such as gasoline, diesel, and alcohol. Foam can cover the surface of the burning liquid, isolate the air, and cool the liquid surface to achieve the effect of extinguishing the fire. (2) Control the spread of fire: When the fire has spread to a certain scale, or there is a large amount of flammable liquid around the fire source, the use of foam can more effectively control the spread of the fire and prevent the fire from further expanding.

[0064] When using water to extinguish a fire, the staff selects the corresponding fire extinguishing method through the fire control module 13, and the fire control module 13 automatically sends corresponding instructions to each execution component. The fire control module 13 sends an opening instruction to the first valve 4 and a closing instruction to the second valve 7, and the first valve 4 and the second valve 7 execute according to the instructions. The fire control module 13 sends an instruction to the first three-way valve 5 to connect the main water pipe 1 with the second pipeline 8; the fire control module 13 sends an instruction to the second three-way valve 9 to connect the second pipeline 8 with the water outlet of the second three-way valve 9. The fire control module 13 sends an instruction to the pressure regulating pump 12 of each unit that sends a fire signal, so that each pressure regulating pump 12 works according to the corresponding pumping pressure; the fire control module 13 also sends an instruction to the fire cannon 11 of each unit that sends a fire signal, so that each group of fire cannon 11 deflects according to the corresponding angle.

[0065] When foam is used to extinguish a fire, the fire control module 13 sends an opening instruction to the first valve 4 and the second valve 7. The fire control module 13 sends an instruction to the first three-way valve 5 to connect the main water pipe 1 with the first pipeline 6; the fire control module 13 sends an instruction to the second three-way valve 9 to connect the first pipeline 6 with the water outlet of the second three-way valve 9. The fire control module 13 sends an instruction to the pressure regulating pump 12 of each unit that sends a fire signal, so that each pressure regulating pump 12 works according to the corresponding pumping pressure; the fire control module 13 also sends an instruction to the fire monitor 11 of each unit that sends a fire signal, so that each group of fire monitors 11 deflects according to the corresponding angle.

[0066] Example 2

[0067] On the basis of the above scheme, the flame detector of the fire detection module measures the light intensity or infrared radiation intensity of the flame to obtain a color image for analyzing the color characteristics of the flame and a thermal imaging image for analyzing the high temperature area. The flame detectors in multiple cells form a triangulation to calculate the area of ​​the flame area. The smoke detector can obtain the presence and concentration of indoor smoke through detection, and the diffusion direction of the smoke can be calculated through the smoke detectors in multiple cells.

[0068] The fire detection module also includes a gas sensor for detecting indoor oxygen concentration and a wind direction sensor for detecting indoor wind direction.

[0069] The automatic fire cannon fire extinguishing system also includes a fire intensity calculation module, which obtains flame data from each flame detection module. The flame data includes color images, thermal imaging images, smoke concentration, oxygen concentration and wind direction information.

[0070] The collected color images and thermal images are input into the fire and smoke target detection algorithm, such as YOLOv7. The fire and smoke target detection algorithm preprocesses the input image and identifies the output number of flame pixels, the total number of pixels, the bounding box of the flame area, and the location of the fire source.

[0071] Calculate the flame area ratio A f = flame pixel data / total pixel data; the number of flame pixels is obtained through the fire target detection algorithm, and the total number of pixels is the total number of pixels in the image. Fire source location (x fire ,y fire ) is the position with the highest temperature in the flame area.

[0072] The fire target detection algorithm calculates the density change of flame pixels through the bounding box of the flame area and the flame pixel distribution to obtain the gradient of the flame area. Gradient of the flame area The calculation formula is:

[0073]

[0074] Where I is the image intensity of the flame area, and are the gradients of the image in the horizontal and vertical directions, respectively.

[0075] Get the wind direction vector through wind direction information The smoke vector can be obtained by measuring the smoke concentration in multiple cell areas The direction of fire spread is calculated by the gradient of the flame area, wind direction and smoke direction Fire spread direction The calculation formula is:

[0076]

[0077] Among them, a, b and c are the weights of the gradient of the flame area, wind direction and smoke direction, respectively, where a+b+c=1, a≥b, a≥c. And the direction of fire spread is Perform normalization processing,

[0078] Divide the indoor space into M×N cells, each of which is Δx×Δy in size; then calculate the relative position vector between the center point of each cell and the fire source position Relative position vector The calculation formula is:

[0079]

[0080] Among them, (x i ,y i ) are the coordinates of the cell center.

[0081] Calculate the nozzle direction θ of each cell's fire monitor i , the direction of the fire monitor nozzle θ i The calculation formula is:

[0082]

[0083] Calculate the spray pressure P of the fire monitor in each cell i , the spray pressure P of the fire monitor i The calculation formula is:

[0084]

[0085] Among them, P0 is the preset basic nozzle pressure; α and β are adjustment parameters, α is 0.1~0.5, β is 0.01~0.1; A f is the percentage of flame area; is the distance between the cell and the fire source; is the oxygen concentration detected by the cell; is the preset maximum value of oxygen concentration. It is the volume fraction of oxygen under standard atmospheric conditions, that is, 21%. By detecting the ratio of oxygen concentration to the maximum oxygen concentration, the oxygen consumption of each cell area can be evaluated. The lower the ratio, the thinner the oxygen at the fire scene, the more intense the combustion may be, and a higher nozzle pressure is required to extinguish the fire.

[0086] The fire calculation module also uses and the cell center coordinates to determine the cell in the direction of fire spread, through As well as preset thresholds, cells that are closer to the fire source are determined, and pressure is adjusted for cells in the direction of fire spread and cells that are closer to the fire source.

[0087]

[0088] in, is the injection pressure of the cell in the direction of fire spread, is the injection pressure of the cell closer to the fire source, γ and δ are the pressure adjustment ratios, γ is 0.5~1.0, and δ is 0.5~1.5.

[0089] The fire calculation module transmits the calculation results to the fire control module. The calculation results include the nozzle direction θ of each cell fire monitor i , the spray pressure P of the fire monitor in each cell i , cell information of the direction of fire spread, cell information close to the fire source, injection pressure of cells in the direction of fire spread and the injection pressure of cells closer to the fire source The fire control module encodes the corresponding instructions through the calculation results and sends them to the corresponding actuator. Each fire monitor in the cell deflects the direction of the gun head according to the instructions, and the corresponding pressure regulating pump of the cell adjusts the working power according to the instructions, thereby adjusting the series-connected fire monitors to work at the specified injection pressure.

[0090] The above is only an embodiment of the present invention, and the common knowledge such as the known specific technical solutions and / or characteristics in the solution is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. Automatic fire cannon fire extinguishing system, characterized in that: include: The deployment module includes a main water pipe for leading water source to the fire extinguishing system, a proportioning mixer for mixing foam liquid and water in proportion, a foam liquid storage tank for providing foam liquid to the proportioning mixer, a first three-way valve and a second three-way valve; the foam liquid storage tank is connected to the liquid inlet of the proportioning mixer through a pipeline, and the main water pipe is also provided with a first valve for controlling the flow of water source; the water inlet of the first three-way valve is connected to the main water pipe, and the two water outlets of the first three-way valve are respectively connected to the water inlet of the proportioning mixer and one water inlet of the second three-way valve through pipelines; the other water inlet of the second three-way valve is connected to the mixed liquid outlet of the proportioning mixer, and the water outlet of the second three-way valve is divided into multiple branches through pipelines, and the ends of each branch are connected to a fire gun group; the fire gun group includes multiple parallel fire guns with adjustable directions and a pressure regulating pump connected in series with multiple fire guns; multiple adjacent cells are divided according to the area of ​​the indoor space, and a group of fire gun groups are installed in each cell, and each group of fire gun groups can work independently; Fire detection module, used to monitor fire information in real time, identify fire, and send out fire signals. Each cell is equipped with a fire detection module; The fire control module is used to receive fire signals and remotely issue instructions to control each execution component, the execution components include a first valve, a second valve, a first three-way valve, a second three-way valve, a pressure regulating pump and a fire monitor, wherein the fire control module is connected to each execution component through electrical signals, and is used to issue instructions to control the connectivity status of each valve and three-way valve, control the liquid supply pressure of the pressure regulating pump, and control the deflection angle of the fire monitor.

2. The automatic fire cannon fire extinguishing system according to claim 1 is characterized in that: The system also includes a fire intensity calculation module; The fire detection module collects flame data at the fire scene, the flame data including color images, thermal imaging images, smoke concentration and wind direction information; The fire intensity calculation module obtains flame data from each flame detection module and inputs the flame data into the fire target detection algorithm. The gradient of the flame area is calculated by the bounding box of the flame area and the flame pixel distribution. Gradient of the flame area The calculation formula is: Where I is the image intensity of the flame area, and They are the gradients of the image in the horizontal and vertical directions respectively; Get the wind direction vector through wind direction information The smoke vector can be obtained by measuring the smoke concentration in multiple cell areas The direction of fire spread is calculated by the gradient of the flame area, wind direction and smoke direction Fire spread direction The calculation formula is: Among them, a, b and c are the weights of the gradient of the flame area, wind direction and smoke direction, and the direction of fire spread Perform normalization processing, Divide the indoor space into M×N cells, each of which is Δx×Δy in size; then calculate the relative position vector between the center point of each cell and the fire source position Relative position vector The calculation formula is: Among them, (x i ,y i ) is the coordinate of the center point of the cell, (x fire ,y fire ) is the fire source location, which is the location with the highest temperature in the flame area; Calculate the nozzle direction θ of each cell's fire monitor i , the direction of the fire monitor nozzle θ i The calculation formula is: The fire intensity calculation module transmits the calculation results to the fire control module. The fire control module encodes the corresponding instructions through the calculation results and sends them to the corresponding actuators. Each fire cannon in the cell deflects the direction of the cannon head according to the instructions.

3. The automatic fire cannon fire extinguishing system according to claim 2 is characterized in that: The flame data also includes oxygen concentration; The fire intensity calculation module obtains the number of flame pixels and the total number of pixels through the fire target detection algorithm and calculates the flame area ratio A f , flame area ratio A f The calculation formula is: Calculate the spray pressure P of the fire monitor in each cell i , the spray pressure P of the fire monitor i The calculation formula is: Among them, P0 is the preset basic nozzle pressure; α and β are adjustment parameters; A f is the percentage of flame area; is the distance between the cell and the fire source; is the oxygen concentration detected by the cell; It is the preset maximum value of oxygen concentration.

4. The automatic fire cannon fire extinguishing system according to claim 3 is characterized in that: The fire intensity calculation module is The cells located in the direction of fire spread are determined by using the coordinates of the cell center position, and the pressure of the cells in the direction of fire spread is adjusted; in, is the injection pressure of the cell in the direction of fire spread, and γ is the pressure regulation ratio.

5. The automatic fire cannon fire extinguishing system according to claim 4 is characterized in that: The fire intensity calculation module is and preset thresholds to determine cells that are closer to the fire source, and adjust the pressure of cells that are closer to the fire source; in, is the injection pressure of the cell closer to the fire source, and δ is the pressure adjustment ratio.

6. The automatic fire cannon fire extinguishing system according to claim 5 is characterized in that: The fire intensity calculation module transmits the calculation results to the fire control module, including the nozzle direction θ of each cell fire monitor. i , the spray pressure P of the fire monitor in each cell i , cell information of the direction of fire spread, cell information close to the fire source, injection pressure of cells in the direction of fire spread and the injection pressure of cells closer to the fire source The fire control module encodes the corresponding instructions through the calculation results and sends them to the corresponding actuators. Each fire monitor in the cell deflects the direction of the gun head according to the instructions, and the corresponding pressure regulating pump of the cell adjusts the working power according to the instructions.

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