Photovoltaic zone fire prevention and extinguishing system

Abstract

This invention provides a fire prevention and extinguishing system for photovoltaic areas, including a track positioned around the perimeter of the photovoltaic area, on which fire prevention and extinguishing devices are installed. The fire prevention and extinguishing devices include: a trolley with a rotating seat rotatably mounted on its top, driven by a drive device; a support plate fixedly mounted on the rotating seat; a detection frame mounted on top of the support plate; a receiving groove at the bottom of the detection frame; a gas spring (or similar device) housed within the receiving groove; a fixed end of the gas spring (or similar device) fixedly connected to the top of the support plate; a telescopic rod slidably inserted into the top of the detection frame; a pushing end of the gas spring (or similar device) at the bottom of the telescopic rod; a fire extinguishing component mounted on one side of the top of the telescopic rod; and a panoramic camera and a temperature measuring device mounted on the top of the telescopic rod. A control device is electrically connected to an alarm, the panoramic camera, the temperature measuring device, the fire extinguishing component, the drive device, and the gas spring (or similar device). This invention achieves fire monitoring and automatic fire extinguishing in photovoltaic areas.

Description

Technical Field

[0001] This invention relates to the field of fire protection equipment technology, specifically a fire prevention and extinguishing system for photovoltaic zones. Background Technology

[0002] Solar energy is currently the cleanest, safest, and most reliable energy source, and its development and utilization have become a major part of the energy revolution. Photovoltaics, short for solar photovoltaic power generation system, is a new type of power generation system that uses the photovoltaic effect of solar cell semiconductor materials to directly convert solar radiation energy into electrical energy. Distributed photovoltaic power generation, as an important direction of the photovoltaic new energy industry, is mostly built near user sites, existing in a mode of self-consumption by the user and grid connection of surplus electricity, achieving efficient energy utilization through distributed photovoltaic grid connection.

[0003] In existing technologies, fire prevention in photovoltaic areas usually only involves fire monitoring, such as CN116421912A, a photovoltaic area fire monitoring device, which cannot perform fire extinguishing functions. It requires personnel to carry fire extinguishing equipment from a distance to extinguish the fire, which affects the fire extinguishing efficiency. Summary of the Invention

[0004] This invention provides a fire prevention and extinguishing system for photovoltaic areas to solve the technical problems mentioned in the background.

[0005] To address the aforementioned technical problems, this invention discloses a fire prevention and extinguishing system for photovoltaic areas, comprising a track disposed around the periphery of the photovoltaic area, and the fire prevention and extinguishing device disposed on the track.

[0006] Preferably, it further includes: a fence isolation device, which is set on the periphery of the photovoltaic area, and the track is set between the fence isolation device and the photovoltaic area, and an alarm is set on the fence isolation device.

[0007] Preferably, the fire prevention and extinguishing device includes: a trolley that automatically travels on a track; a rotating seat rotatably mounted on the top of the trolley, driven by a drive device; a support plate fixedly mounted on the rotating seat; a detection frame mounted on the top of the support plate; a receiving groove opened at the bottom of the detection frame; an air rod first mounted in the receiving groove; a fixed end of the air rod first fixedly connected to the top of the support plate; a telescopic rod slidably inserted into the top of the detection frame; a pushing end of the air rod first located at the bottom of the telescopic rod; a fire extinguishing component mounted on one side of the top of the telescopic rod; and a panoramic camera and a temperature measuring device mounted on the top of the telescopic rod.

[0008] The control device is electrically connected to the alarm, the panoramic camera, the temperature measuring device, the fire extinguishing assembly, the drive device, and the gas cylinder.

[0009] Preferably, the fire extinguishing assembly includes a liquid storage tank, which is located on the top of the trolley. A water pump is installed on the top of the liquid storage tank, and the pumping end of the water pump is located at the bottom of the liquid storage tank. A fixing frame is installed on one side of the top of the telescopic rod, and a reduction motor is horizontally installed inside the top of the telescopic rod. The output end of the reduction motor passes through the fixing frame and is connected to a rotating block. A spray gun is installed inside the rotating block, and the spray gun is connected to the water delivery end of the water pump through a liquid pipe.

[0010] Preferred options also include:

[0011] The area division module is used to divide the photovoltaic area into several sub-regions and number the sub-regions;

[0012] The module is used to construct a photovoltaic area distribution map based on a coordinate system, and to mark the location and number of sub-areas on the photovoltaic area distribution map, as well as the number and location of fire prevention and extinguishing devices. Several fire prevention and extinguishing devices are set up in each photovoltaic area.

[0013] A photovoltaic module monitoring module is set up in each sub-area. The photovoltaic module monitoring module includes several temperature sensors. Each sub-area has a temperature sensor installed on the parts that are prone to fire.

[0014] An environmental information collection device is set up in each sub-area. The environmental information collection device is used to collect environmental information of the corresponding sub-area. The environmental information includes: environmental wind speed and environmental wind direction.

[0015] The first calculation module is used to calculate the fire extinguishing demand coefficient based on the photovoltaic module monitoring module, and determine the first sub-area with a fire extinguishing demand coefficient greater than the corresponding first preset value as the target fire extinguishing area.

[0016] The location detection module is used to obtain the real-time location of the fire prevention and extinguishing device;

[0017] The first acquisition module is used to acquire the fire extinguishing-related parameters of the fire prevention and extinguishing device. The fire extinguishing-related parameters of the fire prevention and extinguishing device include: the allowable spray flow rate of the extinguishing agent of the fire extinguishing component of the fire prevention and extinguishing device, the storage capacity of the extinguishing agent of the fire prevention and extinguishing device, and the spray range of the fire extinguishing component of the fire prevention and extinguishing device.

[0018] The simulation module is used to simulate the diffusion state of the target fire extinguishing area based on the photovoltaic area distribution map and the fire extinguishing demand coefficient, ambient wind speed, and ambient wind direction of the target fire extinguishing area.

[0019] The second calculation module is used to calculate the fire extinguishing satisfaction coefficient of the corresponding fire prevention and extinguishing device in the target fire extinguishing area based on the first calculation module, the position detection module, the first acquisition module, and the simulation module.

[0020] The sorting module is used to sort the fire extinguishing satisfaction coefficients of the corresponding fire prevention and extinguishing devices in the target fire extinguishing area from largest to smallest.

[0021] The first control module is used to control the operation of the corresponding fire prevention and extinguishing devices in the target fire extinguishing area based on the sorting module.

[0022] Preferably, the first control module is used for:

[0023] When maxW dk If the value is greater than or equal to the corresponding second preset value, control maxW. dk The corresponding fire prevention and extinguishing devices are used to extinguish the fire in the corresponding target fire area; W dk Let be the fire extinguishing satisfaction coefficient of the kth fire prevention and extinguishing device corresponding to the dth target fire extinguishing area;

[0024] When maxW dk If it is less than the corresponding second preset value, determine maxW. dk When the corresponding fire prevention and extinguishing device reaches the corresponding target fire extinguishing location: maxW dk The spraying range of the corresponding fire extinguishing component of the corresponding fire prevention and extinguishing device covers the fire extinguishing area corresponding to the diffusion state of the target fire extinguishing area; the uncovered area of ​​the fire extinguishing area corresponding to the diffusion state of the target fire extinguishing area is the target range of the fire extinguishing area corresponding to the diffusion state of the target fire extinguishing area; the fire prevention and extinguishing device of the target fire extinguishing area that can extinguish the fire within the target range of the target fire extinguishing area extinguishes the fire within the target range of the target fire extinguishing area.

[0025] The time it takes for the fire prevention and extinguishing device to reach the corresponding target fire extinguishing location is determined by: the moving speed of the fire prevention and extinguishing device and the distance between the current position of the fire prevention and extinguishing device and the target fire extinguishing location on the photovoltaic area distribution map.

[0026] Preferably, the fire extinguishing demand factor is calculated based on the following formula:

[0027]

[0028] G i M represents the fire extinguishing demand coefficient for the i-th sub-region; i M represents the total number of easily flammable components in the i-th sub-region. i1 T represents the total number of target temperature sensors in the i-th sub-region. A target temperature sensor is any temperature sensor whose detected value is greater than the fire risk temperature of the corresponding component. ij T represents the detected value of the j-th target temperature sensor in the i-th sub-region; ij0 Let be the fire risk temperature of the component corresponding to the j-th target temperature sensor in the i-th sub-region.

[0029] Preferably, the fire extinguishing satisfaction factor is calculated based on the following formula:

[0030]

[0031] W dk Q represents the fire suppression satisfaction coefficient of the k-th fire prevention and extinguishing device corresponding to the d-th target fire suppression area; dk ′ represents the extinguishing dose required to extinguish the spread of the target fire zone when the k-th fire prevention and extinguishing device corresponding to the d-th target fire zone reaches its corresponding target fire extinguishing position and begins extinguishing; Q represents the extinguishing dose required to extinguish the spread of the target fire zone. dk S represents the storage capacity of the extinguishing agent in the k-th fire prevention and extinguishing device corresponding to the d-th target fire extinguishing area. dk1 S represents the spray range of the fire extinguishing component of the k-th fire extinguishing device corresponding to the d-th target fire extinguishing area; dk2 The fire extinguishing area is the area corresponding to the diffusion state of the target fire extinguishing area when the kth fire prevention and extinguishing device corresponding to the dth target fire extinguishing area arrives at the corresponding target fire extinguishing position and starts extinguishing the fire.

[0032] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0033] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0034] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0035] Figure 2 This is a schematic diagram of the fire prevention and extinguishing device in this invention;

[0036] Figure 3 This is a schematic diagram of the structure of the vehicle in this invention;

[0037] Figure 4 This is a schematic diagram of the cleaning device in this invention;

[0038] Figure 5 for Figure 4 A schematic diagram of the structure of part A.

[0039] In the diagram: 1. Fence isolation device; 11. Track; 12. Alarm; 2. Photovoltaic area; 3. Fire prevention and extinguishing device; 31. Trolley; 311. Car platform; 312. Limiting block; 313. Drive shaft; 314. Drive wheel; 315. Steering wheel; 316. Motor II; 317. Bevel gear I; 318. Bevel gear II; 319. Driven shaft; 3191. Bushing; 3192. Rotating shaft; 32. Rotating seat; 33. Support plate; 34. Drive device; 341. Motor I; 342. Straight gear; 35. Detector frame; 36. Telescopic rod; 37. Gas rod I; 38. Fire extinguishing assembly; 381. Liquid storage tank; 382. Water pump; 383. Fixing frame; 384. Gear motor; 3 85. Rotating block; 386. Spray gun; 387. Liquid pipe; 39. Panoramic camera; 391. Temperature measuring device; 4. Cleaning device; 41. Housing; 42. Dual-axis motor; 43. Limiting plate one; 44. Limiting plate two; 45. Limiting plate three; 46. Rotating assembly; 461. Rotating shaft; 462. Rotating shaft; 463. Bevel gear three; 464. Bevel gear four; 465. Square shaft; 47. Lifting assembly; 471. Inclined block two; 472. Horizontal bar; 473. Return spring; 474. Rotating wheel; 475. Limiting groove; 476. Limiting post; 477. Shaft collar; 478. Sleeve shaft; 479. Inclined block three; 48. Air rod two; 49. Inclined block one; 50. Cleaning brush. Detailed Implementation

[0040] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0041] Furthermore, in this invention, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the invention. They are merely used to distinguish components or operations described using the same technical terms and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions and features of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If a combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0042] The present invention provides the following embodiments.

[0043] Example 1

[0044] This invention provides a fire prevention and extinguishing system for photovoltaic zone 2, such as... Figure 1As shown, it includes a track 11, which is located on the periphery of the photovoltaic area 2, and the fire prevention and extinguishing device 3 is installed on the track 11.

[0045] The beneficial effects of the above technical solution are as follows: the fire prevention and extinguishing device 3 runs along the track 11 and circles around the outer edge of the photovoltaic area 2. The photovoltaic area 2 provides power for the fire prevention and extinguishing device 3. During the circling process, the fire prevention and extinguishing device 3 detects the fire situation in the photovoltaic area 2.

[0046] The present invention addresses the problem mentioned in the background art: In the prior art, fire prevention in photovoltaic areas usually only involves fire monitoring, such as CN116421912A, a photovoltaic area fire monitoring device, which cannot realize fire extinguishing function, requiring personnel to carry fire extinguishing devices from a distance to extinguish the fire, thus affecting the fire extinguishing efficiency.

[0047] Example 2

[0048] Based on Example 1, such as Figure 1 As shown, it also includes: a fence isolation device 1, which is set on the periphery of the photovoltaic area 2, and the track 11 is set between the fence isolation device 1 and the photovoltaic area 2. An alarm 12 is set on the fence isolation device 1.

[0049] The beneficial effects of the above technical solution are as follows: the fire prevention and extinguishing device 3 detects the fire in the photovoltaic area 2 and the fence isolation device 1 and the nearby fire along the track 11, and at the same time extinguishes the fire in time. The alarm 12 on the fence isolation device 1 issues an alarm reminder when it detects the fire.

[0050] Example 3

[0051] Based on Example 2, such as Figure 1 , Figure 3 As shown, the fire prevention and extinguishing device 3 includes: a trolley 31, which automatically travels on a track 11; a rotating seat 32 is rotatably mounted on the top of the trolley 31, which is driven by a drive device 34; a support plate 33 is fixedly mounted on the rotating seat 32; a detection frame 35 is mounted on the top of the support plate 33; a receiving groove is opened at the bottom of the detection frame 35; an air rod 37 is mounted in the receiving groove; the fixed end of the air rod 37 is fixedly connected to the top of the support plate 33; a telescopic rod 36 is slidably inserted into the top of the detection frame 35; the pushing end of the air rod 37 is located at the bottom of the telescopic rod 36; a fire extinguishing component 38 is mounted on one side of the top of the telescopic rod 36; and a panoramic camera 39 and a temperature measuring device 391 are mounted on the top of the telescopic rod 36.

[0052] The control device is electrically connected to the alarm 12, the panoramic camera 39, the temperature measuring device 391, the fire extinguishing assembly 38, the drive device 34, and the gas cylinder 37.

[0053] Preferably, the fire extinguishing assembly 38 includes a storage tank 381, which is located on top of the trolley 31. A water pump 382 is installed on top of the storage tank 381, with its pumping end located at the bottom of the storage tank 381. A fixing frame 383 is located on one side of the top of the telescopic rod 36. A reduction motor 384 is horizontally installed inside the top of the telescopic rod 36. The output end of the reduction motor 384 passes through the fixing frame 383 and is connected to a rotating block 385. A spray gun 386 is installed inside the rotating block 385, and the spray gun 386 is connected to the water delivery end of the water pump 382 via a liquid pipe 387. The trolley 31 can be an existing self-propelled trolley.

[0054] Optionally, the trolley 31 includes a platform 311. A second motor 316, a limiting block 312, and a bushing 3191 are fixedly installed at the bottom of the platform 311. A drive shaft 313 is rotatably installed inside the limiting block 312. Drive wheels 314 are installed at both ends of the drive shaft 313. A first bevel gear 317 is installed on the drive shaft 313. A second bevel gear 318 is installed at the output end of the second motor 316. The first bevel gear 317 meshes with the second bevel gear 318. A rotating shaft 3192 is vertically rotatably installed inside the bushing 3191. A driven shaft 319 is installed at the bottom of the rotating shaft 3192. Steering wheels 315 are installed at both ends of the driven shaft 319. Limiting block 312 limits the rotation of drive shaft 313. Motor 2 316 drives bevel gear 1 317 to rotate. Bevel gear 1 317 drives bevel gear 2 318 to rotate through meshing. Bevel gear 2 318 drives drive shaft 313 and drive wheel 314 to rotate, providing power to trolley 31. Rotating shaft 3192 limits the rotation of driven shaft 319. Steering wheel 315 rotates synchronously with driven shaft 319. Rotating shaft 3192 rotates freely within bushing 3191, allowing steering wheel 315 to freely rotate to pass through curves at turns on track 11.

[0055] The drive device 34 includes: a motor 341, which is fixedly connected to the top of the trolley 31. The output end of the motor 341 is provided with a straight tooth 342, which meshes with the meshing teeth on the outer side of the support plate 33.

[0056] The beneficial effects of the above technical solution are as follows: the support plate 33 rotates on the rotating seat 32, the detection frame 35 and the gas spring 37 rotate synchronously with the support plate 33, the push end of the gas spring 37 controls the telescopic rod 36 to extend and retract within the detection frame 35, thereby adjusting the height of the panoramic camera 39 and the temperature measuring device 391 at the top of the telescopic rod 36. The panoramic camera 39 performs video detection of the fire situation in the outside world, the temperature measuring device 391 detects the temperature changes of the surrounding environment, and performs all-round detection of whether there is a fire in the surrounding area. The fire extinguishing component 38 extinguishes the fire at the location of the fire. The control device performs synchronous and coordinated control of the alarm 12, the panoramic camera 39, the temperature measuring device 391, the fire extinguishing component 38, the drive device 34, and the gas spring 37.

[0057] The water pump 382 draws the special fire extinguishing agent from the storage tank 381 into the spray gun 386 and sprays it onto the fire location to extinguish the fire. The fixing bracket 383 fixes the output end of the reduction motor 384. The reduction motor 384 drives the rotating block 385 to rotate, thereby adjusting the rotation angle of the spray gun 386 for precise fire extinguishing.

[0058] Example 4

[0059] Based on Example 3, such as Figure 4 , Figure 5 As shown, it also includes a cleaning device 4, which is disposed at the front end of the trolley 31.

[0060] The cleaning device 4 includes a housing 41. A first limiting plate 43, a second limiting plate 44, a third limiting plate 45, and a second air rod 48 are vertically arranged inside the housing 41. A dual-axis motor 42 is arranged inside the housing 41. Rotating components 46 are symmetrically arranged at the output ends of the dual-axis motor 42. A first inclined block 49 is connected to the bottom of the second air rod 48. Lifting components 47 are symmetrically abutted at both ends of the first inclined block 49. A cleaning brush 50 is arranged below the lifting components 47.

[0061] Preferably, the rotating assembly 46 includes a rotating shaft 461, which is rotatably disposed in the middle of the first limiting plate 43, the second limiting plate 44, and the third limiting plate 45. The rotating shaft 461 is provided with a bevel tooth 463. A rotating shaft 462 is vertically rotatably disposed on the top surface of the housing 41. The rotating shaft 462 is provided with a bevel tooth 464. The bevel tooth 463 meshes with the bevel tooth 464. A square shaft 465 is provided at the bottom of the rotating shaft 462. The bottom end of the square shaft 465 is connected to the lifting assembly 47.

[0062] Preferably, the lifting assembly 47 includes a second inclined block 471, the inclined surface of the second inclined block 471 (the inclined surface of the left-side second inclined block 471 is lower on the left and higher on the right) abuts against the inclined surface of the first inclined block 49, the other end of the second inclined block 471 is provided with a horizontal rod 472, the horizontal rod 472 slides horizontally through the lower part of the first limiting plate 43, a return spring 473 is sleeved on the horizontal rod 472, and the other end of the horizontal rod 472 is provided with a rotating wheel 474, the second limiting plate 44 and The lower part of the limiting plate 45 has a limiting groove 475, and a limiting post 476 is provided in the limiting groove 475. A collar 477 is slidably sleeved on the limiting post 476. A sleeve shaft 478 is rotatably arranged in the collar 477. The sleeve shaft 478 is sleeved on the square shaft 465. A cleaning brush 50 is provided at the bottom of the sleeve shaft 478. An inclined block 479 is provided at the right end of the collar 477. The inclined block 479 abuts against the inclined surface of the inclined block 479.

[0063] The beneficial effects of the above technical solution are as follows: the housing 41 is fixed to the front end of the trolley 31, and the debris on the track 11 is cleared before the trolley 31 passes the track 11, so as to prevent the trolley 31 from stopping in the process of running due to an accident.

[0064] The two output ends of the dual-axis motor 42 drive the rotating component 46 to rotate. The second pneumatic rod 48 drives the first inclined block 49 to extend and retract, while controlling the lifting component 47 to transmit the rotation of the rotating component 46 and control the lifting of the cleaning brush 50, thereby controlling the cleaning height of the track 11.

[0065] The dual-axis motor 42 drives the rotating shaft 461 to rotate synchronously. The bevel gear 463 rotates synchronously with the rotating shaft 461. The bevel gear 463 meshes with the bevel gear 464 and the rotating shaft 462 to rotate synchronously. The rotating shaft 462 drives the square shaft 465 at the bottom to rotate synchronously. The square shaft 465 drives the lifting assembly 47 to rotate synchronously.

[0066] The pushing end of the second pneumatic rod 48 drives the first inclined block 49 to extend and retract. While the first inclined block 49 retracts upward, it pushes the second inclined blocks 471 at both ends outward. The second inclined block 471 drives the horizontal rod 472 to slide outward synchronously through the first limiting plate 43. The return spring 473 is compressed. The horizontal rod 472 pushes the rotating wheel 474 to rotate and squeeze the inclined surface of the third inclined block 479. The third inclined block 479 drives the collar 477 to move vertically downward along the limiting rod in the limiting groove 475. The sleeve shaft 478 moves vertically downward with the collar 477 as the square shaft 465 rotates. The cleaning brush 50 moves downward synchronously with the sleeve shaft 478.

[0067] When it is necessary to move the cleaning brush 50 upward, control the extension and retraction of the air rod 48, and the inclined block 471 extends downward. The corresponding parts move in the reverse direction according to the above process, and the cleaning brush 50 can then move upward.

[0068] Example 5

[0069] In addition to any one of Examples 1-4, it also includes:

[0070] The area division module is used to divide the photovoltaic area into several sub-regions and number the sub-regions;

[0071] The module is used to construct a photovoltaic area distribution map based on a coordinate system, and to mark the location and number of sub-areas on the photovoltaic area distribution map, as well as the number and location of fire prevention and extinguishing devices 3. Several fire prevention and extinguishing devices 3 are set up in each photovoltaic area.

[0072] A photovoltaic module monitoring module is set up in each sub-area. The photovoltaic module monitoring module includes several temperature sensors. Each sub-area has a temperature sensor installed on the parts that are prone to fire.

[0073] An environmental information collection device is set up in each sub-area. The environmental information collection device is used to collect environmental information of the corresponding sub-area. The environmental information includes: environmental wind speed and environmental wind direction.

[0074] The first calculation module is used to calculate the fire extinguishing demand coefficient based on the photovoltaic module monitoring module, and determine the first sub-area with a fire extinguishing demand coefficient greater than the corresponding first preset value as the target fire extinguishing area.

[0075] The position detection module is used to obtain the real-time position of the fire prevention and extinguishing device 3;

[0076] The first acquisition module is used to acquire the fire extinguishing related parameters of the fire extinguishing device 3. The fire extinguishing related parameters of the fire extinguishing device 3 include: the allowable spray flow rate of the extinguishing agent of the fire extinguishing component 38 of the fire extinguishing device 3, the storage amount of the extinguishing agent of the fire extinguishing device 3, and the spray range of the fire extinguishing component 38 of the fire extinguishing device 3.

[0077] The simulation module is used to simulate the diffusion state of the target fire extinguishing area based on the photovoltaic area distribution map and the fire extinguishing demand coefficient, ambient wind speed, and ambient wind direction of the target fire extinguishing area; the fire extinguishing demand coefficient of the target fire extinguishing area is used to initially determine the initial fire area of ​​the target fire extinguishing area, which is determined based on the fire extinguishing demand coefficient of the target fire extinguishing area and the distribution of the target temperature sensor.

[0078] The second calculation module is used to calculate the fire extinguishing satisfaction coefficient of the corresponding fire prevention and extinguishing device 3 in the target fire extinguishing area based on the first calculation module, the position detection module, the first acquisition module, and the simulation module.

[0079] The sorting module is used to sort the fire extinguishing satisfaction coefficients of the corresponding fire prevention and extinguishing devices 3 in the target fire extinguishing area from largest to smallest.

[0080] The first control module is used to control the operation of the corresponding fire prevention and extinguishing device 3 in the target fire extinguishing area based on the sorting module.

[0081] Preferably, the first control module is used for:

[0082] When maxW dk If the value is greater than or equal to the corresponding second preset value, control maxW. dk The corresponding fire prevention and extinguishing device 3 extinguishes the fire in the corresponding target fire area; W dk Let be the fire extinguishing satisfaction coefficient of the kth fire prevention and extinguishing device corresponding to the dth target fire extinguishing area;

[0083] When maxW dk If it is less than the corresponding second preset value, determine maxW. dk When the corresponding fire prevention and extinguishing device 3 reaches the corresponding target fire extinguishing position: maxW dk The spraying range of the corresponding fire extinguishing component 38 of the corresponding fire prevention and extinguishing device 3 is the coverage range of the fire extinguishing area corresponding to the diffusion state of the target fire extinguishing area; the uncovered area of ​​the fire extinguishing area corresponding to the diffusion state of the target fire extinguishing area is the target range of the fire extinguishing area corresponding to the diffusion state of the target fire extinguishing area; the fire prevention and extinguishing device 3 of the target fire extinguishing area that can extinguish the fire in the target range of the target fire extinguishing area is used to extinguish the fire in the target range of the target fire extinguishing area.

[0084] The time it takes for the fire extinguishing device 3 to reach the corresponding target fire extinguishing location is determined by: the moving speed of the fire extinguishing device 3 and the distance between the current position of the fire extinguishing device 3 and the target fire extinguishing location on the photovoltaic area distribution map.

[0085] Preferably, the fire extinguishing demand factor is calculated based on the following formula:

[0086]

[0087] G i M represents the fire extinguishing demand coefficient for the i-th sub-region; i M represents the total number of easily flammable components in the i-th sub-region. i1 T represents the total number of target temperature sensors in the i-th sub-region. A target temperature sensor is any temperature sensor whose detected value is greater than the fire risk temperature of the corresponding component. ij T represents the detected value of the j-th target temperature sensor in the i-th sub-region; ij0 Let be the fire risk temperature of the component corresponding to the j-th target temperature sensor in the i-th sub-region.

[0088] Preferably, the fire extinguishing satisfaction factor is calculated based on the following formula:

[0089]

[0090] W dk Q represents the fire suppression satisfaction coefficient of the k-th fire prevention and extinguishing device corresponding to the d-th target fire suppression area; dk ′ represents the extinguishing dose required to extinguish the spread of the target fire zone when the k-th fire prevention and extinguishing device corresponding to the d-th target fire zone reaches its corresponding target fire extinguishing position and begins extinguishing; Q represents the extinguishing dose required to extinguish the spread of the target fire zone. dk S represents the storage capacity of the extinguishing agent in the k-th fire prevention and extinguishing device corresponding to the d-th target fire extinguishing area. dk1 S represents the spray range of the fire extinguishing component 38 of the k-th fire prevention and extinguishing device corresponding to the d-th target fire extinguishing area; dk2 The fire extinguishing area is the area corresponding to the diffusion state of the target fire extinguishing area when the kth fire prevention and extinguishing device corresponding to the dth target fire extinguishing area arrives at the corresponding target fire extinguishing position and starts extinguishing the fire.

[0091] The beneficial effects of the above technical solution are as follows:

[0092] 1. Construct a photovoltaic area distribution map, and mark the location and number of sub-areas on the photovoltaic area distribution map, as well as the number and location of fire prevention and extinguishing device 3, to facilitate the quick determination of the location of each sub-area, the status of the surrounding sub-areas, and the location of fire prevention and extinguishing device 3;

[0093] 2. The photovoltaic module monitoring module calculates the fire extinguishing demand coefficient, determines the first sub-area with a fire extinguishing demand coefficient greater than the corresponding first preset value as the target fire extinguishing area, that is, the area with fire risk or already on fire, and determines the fire extinguishing demand coefficient based on the distribution of components with fire risk or on fire in the target fire extinguishing area. It can estimate the fire area based on the fire extinguishing demand coefficient and the distribution of components with fire risk or on fire in the target fire extinguishing area, and ensure reliable fire extinguishing according to the fire extinguishing demand coefficient.

[0094] 3. Based on the photovoltaic area distribution map and the fire extinguishing demand coefficient, ambient wind speed, and ambient wind direction of the target fire extinguishing area, the diffusion state of the target fire extinguishing area can be simulated to determine the area of ​​the target fire extinguishing area after diffusion in a time-related manner (matching the spraying range of the fire extinguishing component 38 of the fire extinguishing device 3).

[0095] Based on the first calculation module (determining the initial fire area of ​​the target fire extinguishing area), the location detection module (the location of the fire prevention and extinguishing device 3 in the target fire extinguishing area), the first acquisition module (fire extinguishing-related parameters of the fire prevention and extinguishing device 3), and the simulation module (the diffusion state of the target fire extinguishing area), the fire extinguishing satisfaction coefficient (the fire extinguishing range satisfaction state and the fire extinguishing quantity satisfaction state upon reaching the fire extinguishing position) of the corresponding fire prevention and extinguishing device 3 in the target fire extinguishing area is calculated, and the fire prevention and extinguishing device 3 that best meets the fire extinguishing needs of the target fire extinguishing area is determined for fire extinguishing.

[0096] (1) When maxW dk If the value is greater than or equal to the corresponding second preset value, control maxW. dk The corresponding fire prevention and extinguishing device 3 extinguishes the fire in the corresponding target fire extinguishing area; that is, maxW dk The corresponding fire prevention and extinguishing device 3 is sufficient to completely cover the fire area of ​​the target fire extinguishing zone after the fire has spread, using only maxW dk The corresponding fire prevention and extinguishing device 3 is used to extinguish the fire;

[0097] (2) When maxW dk If it is less than the corresponding second preset value, determine maxW. dk When the corresponding fire prevention and extinguishing device 3 reaches the corresponding target fire extinguishing position: maxW dk The spraying range of the corresponding fire extinguishing component 38 of the corresponding fire prevention and extinguishing device 3 is the coverage range of the fire extinguishing area corresponding to the diffusion state of the target fire extinguishing area; the uncovered area of ​​the fire extinguishing area corresponding to the diffusion state of the target fire extinguishing area is the target range of the fire extinguishing area corresponding to the diffusion state of the target fire extinguishing area; the fire prevention and extinguishing device 3 of the target fire extinguishing area that can extinguish the fire in the target range of the target fire extinguishing area is used to extinguish the fire in the target range of the target fire extinguishing area.

[0098] That is, maxW dk The corresponding fire extinguishing device 3 cannot completely cover the fire area of ​​the target fire extinguishing zone after the fire has spread. Therefore, the device with the best fire extinguishing coverage area and extinguishing dosage (maxW) should be selected first. dk Extinguish the fire, and then use other fire extinguishing equipment to extinguish the fire in the uncovered areas to ensure fire extinguishing is carried out.

[0099] Example 6

[0100] Based on embodiment 5, a movement detection module is also included, which is used to periodically detect the movement of the fire prevention and extinguishing device 3, determine the allowable movement speed of the fire prevention and extinguishing device 3 during the current period, and determine the time for the fire prevention and extinguishing device 3 to reach the corresponding target extinguishing position based on the allowable movement speed of the fire prevention and extinguishing device 3 during the current period.

[0101] The motion detection module includes:

[0102] A speed sensor is used to detect the moving speed of the car 31;

[0103] The first detection device is used to detect the center of gravity deviation of the fire prevention and extinguishing device components that are prone to instability during the process of the trolley 31.

[0104] The second detection device is installed on the trolley 31 and is used to detect the deviation information of the wheels of the trolley 31 relative to the track 11. The deviation information of the wheels of the trolley 31 relative to the track 11 includes: the deviation distance of the wheels of the trolley 31 relative to the side of the track 11 in the length direction and the deviation distance of the wheels of the trolley 31 relative to the bottom surface of the track 11.

[0105] The first control unit controls the trolley 31 to perform multiple movement sub-tests at a speed between the rated speed and the maximum permissible speed. During the multiple movement sub-tests, the speed increases incrementally according to the target, and the duration of each movement sub-test is preset.

[0106] The first calculation unit is used to calculate the test results for each movement test;

[0107]

[0108] G h For the test result of the h-th sub-test, θ h A represents the moving speed during the h-th sub-test; yh Let A be the center-of-gravity deviation distance of the y-th unbalanced component of the fire-fighting device during the h-th moving sub-test. y0 σ represents the maximum permissible center-of-gravity deviation distance of a component of the y-th unbalanced fire prevention and extinguishing device; y Let μ be the instability influence coefficient of the y-th component of the fire prevention and extinguishing device that is prone to center of gravity instability; y Let B be the influence coefficient of the current deviation direction of the component of the y-th fire extinguishing device that is prone to instability; T is the total number of components of the fire extinguishing device that is prone to instability; x0 B represents the maximum permissible value for the x-th deviation of the wheel of the trolley 31 relative to the track 11; xh τ is the actual detected value of the x-th deviation of the wheel of the trolley 31 relative to the track 11; x U is the deviation influence coefficient of the xth deviation information of the wheels of the trolley 31 relative to the track 11; U is the total number of deviation information of the wheels of the trolley 31 relative to the track 11.

[0109] The first early warning unit, when It is greater than or equal to the corresponding third preset value, and at this time G h If the value is less than or equal to the corresponding fourth preset value, a first warning will be issued.

[0110] Second warning, when When G is greater than or equal to the corresponding third preset value, h If the value exceeds the corresponding fourth preset value, a second warning is issued. The movement speed during the second warning test is selected as the allowable movement speed for the fire extinguishing device 3 during the current cycle of stable movement.

[0111] The beneficial effects of the above technical solution are as follows:

[0112] Periodically conduct movement tests on the fire prevention and extinguishing device 3 to determine the allowable movement speed for stable movement of the fire prevention and extinguishing device 3 in the current period, thus ensuring that the fire prevention and extinguishing device 3 can be moved reliably.

[0113] The first early warning unit, when It is greater than or equal to the corresponding third preset value, and at this time G h If the value is less than or equal to the corresponding fourth preset value, a first warning will be issued; that is, when the movement status of the fire prevention and extinguishing device 3 is abnormal, an alarm will be triggered in time.

[0114] Second warning, when When G is greater than or equal to the corresponding third preset value, h If the value exceeds the corresponding fourth preset value, a second warning is issued. The movement speed during the second warning sub-test is selected as the allowable movement speed for the fire extinguishing device 3 during its current stable movement cycle. That is, the movement state of the fire extinguishing device 3 is relatively normal, but has decreased compared to its initial state. Based on the current state, the allowable movement speed for the fire extinguishing device 3 during its current stable movement cycle is determined to ensure reliable fire extinguishing.

[0115] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A photovoltaic field fire prevention and suppression system, characterized by: Includes a track (11), which is located on the periphery of the photovoltaic area (2), and the fire prevention and extinguishing device (3) is installed on the track (11). Also includes: The area division module is used to divide the photovoltaic area into several sub-regions and number the sub-regions; The module is used to construct a photovoltaic area distribution map based on the coordinate system, and to mark the location and number of sub-areas on the photovoltaic area distribution map, as well as the number and location of fire prevention and extinguishing devices (3). Several fire prevention and extinguishing devices (3) are set up in each photovoltaic area. A photovoltaic module monitoring module is set up in each sub-area. The photovoltaic module monitoring module includes several temperature sensors. Each sub-area has a temperature sensor installed on the parts that are prone to fire. An environmental information collection device is set up in each sub-area. The environmental information collection device is used to collect environmental information of the corresponding sub-area. The environmental information includes: environmental wind speed and environmental wind direction. The first calculation module is used to calculate the fire extinguishing demand coefficient based on the photovoltaic module monitoring module, and determine the first sub-area with a fire extinguishing demand coefficient greater than the corresponding first preset value as the target fire extinguishing area. The location detection module is used to obtain the real-time location of the fire prevention and extinguishing device (3); The first acquisition module is used to acquire the fire-fighting related parameters of the fire-fighting device (3). The fire-fighting related parameters of the fire-fighting device (3) include: the allowable spray flow rate of the extinguishing agent of the fire-fighting component (38) of the fire-fighting device (3), the storage amount of the extinguishing agent of the fire-fighting device (3), and the spray range of the fire-fighting component (38) of the fire-fighting device (3). The simulation module is used to simulate the diffusion state of the target fire extinguishing area based on the photovoltaic area distribution map and the fire extinguishing demand coefficient, ambient wind speed, and ambient wind direction of the target fire extinguishing area. The second calculation module is used to calculate the fire extinguishing satisfaction coefficient of the corresponding fire prevention and extinguishing device (3) of the target fire extinguishing area based on the first calculation module, the position detection module, the first acquisition module, and the simulation module. The sorting module is used to sort the fire extinguishing satisfaction coefficients of the corresponding fire prevention and extinguishing devices (3) in the target fire extinguishing area from largest to smallest. The first control module is used to control the operation of the corresponding fire prevention and extinguishing device (3) in the target fire extinguishing area based on the sorting module; The fire extinguishing demand factor is calculated based on the following formula: ； Let be the fire extinguishing demand coefficient for the i-th sub-region; Let be the total number of easily flammable components in the i-th sub-region. The total number of target temperature sensors in the i-th sub-region is defined as follows: the target temperature sensor is the temperature sensor whose detected value is greater than the fire risk temperature of the corresponding component. The detected value of the j-th target temperature sensor in the i-th sub-region; Let be the fire risk temperature of the component corresponding to the j-th target temperature sensor in the i-th sub-region; The fire extinguishing satisfaction factor is calculated based on the following formula: ； Let be the fire extinguishing satisfaction coefficient of the kth fire prevention and extinguishing device corresponding to the dth target fire extinguishing area; The fire extinguishing dose required for the diffusion state of the target fire extinguishing area when the kth fire prevention and extinguishing device corresponding to the dth target fire extinguishing area reaches the corresponding target fire extinguishing position and starts extinguishing the fire. Let represent the extinguishing agent storage capacity of the k-th fire prevention and extinguishing device corresponding to the d-th target fire extinguishing area. The spraying range of the fire extinguishing component (38) of the kth fire prevention and extinguishing device corresponding to the dth target fire extinguishing area; The fire extinguishing area is the area corresponding to the diffusion state of the target fire extinguishing area when the kth fire prevention and extinguishing device corresponding to the dth target fire extinguishing area arrives at the corresponding target fire extinguishing position and starts extinguishing the fire.

2. The photovoltaic area fire prevention and extinguishing system according to claim 1, characterized in that: Also includes: A fence isolation device (1) is set on the periphery of the photovoltaic area (2), and the track (11) is set between the fence isolation device (1) and the photovoltaic area (2). An alarm (12) is set on the fence isolation device (1).

3. The photovoltaic area fire prevention and extinguishing system according to claim 1, characterized in that: The fire prevention and extinguishing device (3) includes: a trolley (31), which automatically travels on the track (11), a rotating seat (32) is rotatably provided on the top of the trolley (31), the rotating seat (32) is driven by a driving device (34), a support plate (33) is fixedly provided on the rotating seat (32), a detection frame (35) is provided on the top of the support plate (33), a receiving groove is provided at the bottom of the detection frame (35), an air rod (37) is provided in the receiving groove, the fixed end of the air rod (37) is fixedly connected to the top of the support plate (33), a telescopic rod (36) is slidably inserted into the top of the detection frame (35), the pushing end of the air rod (37) is provided at the bottom of the telescopic rod (36), a fire extinguishing component (38) is provided on one side of the top of the telescopic rod (36), and a panoramic camera (39) and a temperature measuring device (391) are provided on the top of the telescopic rod (36). The control device is electrically connected to the alarm (12), the panoramic camera (39), the temperature measuring device (391), the fire extinguishing component (38), the drive device (34), and the gas cylinder (37).

4. A photovoltaic area fire prevention and extinguishing system according to claim 3, characterized in that: The fire extinguishing assembly (38) includes a storage tank (381), which is located on the top of the trolley (31). A water pump (382) is located on the top of the storage tank (381). The pumping end of the water pump (382) is located at the bottom of the storage tank (381). A fixing frame (383) is located on one side of the top of the telescopic rod (36). A reduction motor (384) is horizontally located inside the top of the telescopic rod (36). The output end of the reduction motor (384) passes through the fixing frame (383) and is connected to a rotating block (385). A spray gun (386) is located inside the rotating block (385). The spray gun (386) is connected to the water delivery end of the water pump (382) through a liquid pipe (387).

5. A photovoltaic area fire prevention and extinguishing system according to claim 1, characterized in that: The first control module is used for: when Greater than or equal to the corresponding second preset value, control The corresponding fire prevention and extinguishing device (3) extinguishes the corresponding target fire extinguishing area; Let be the fire extinguishing satisfaction coefficient of the kth fire prevention and extinguishing device corresponding to the dth target fire extinguishing area; when If it is less than the corresponding second preset value, confirm. When the corresponding fire prevention and extinguishing device (3) reaches the corresponding target fire extinguishing position: The spraying range of the corresponding fire extinguishing device (3) and the corresponding fire extinguishing component (38) covers the fire extinguishing area corresponding to the diffusion state of the target fire extinguishing area; the uncovered area of ​​the fire extinguishing area corresponding to the diffusion state of the target fire extinguishing area is the target range of the fire extinguishing area corresponding to the diffusion state of the target fire extinguishing area; the fire extinguishing device (3) of the target fire extinguishing area that can extinguish the target range of the fire extinguishing area of ​​the target fire extinguishing area extinguishes the target range of the target fire extinguishing area. The time it takes for the fire extinguishing device (3) to reach the corresponding target fire extinguishing location is determined by: the moving speed of the fire extinguishing device (3) and the distance between the current position of the fire extinguishing device (3) and the target fire extinguishing location in the photovoltaic area distribution map.

6. A photovoltaic area fire prevention and extinguishing system according to claim 1, characterized in that: It also includes a movement detection module, which is used to periodically detect the movement of the fire prevention and extinguishing device (3), determine the allowable movement speed of the fire prevention and extinguishing device (3) in the current period, and determine the time for the fire prevention and extinguishing device (3) to reach the corresponding target extinguishing position based on the allowable movement speed of the fire prevention and extinguishing device (3) in the current period.

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