A helicopter bucket throwing and spreading precision testing system

Abstract

This utility model discloses a precision testing system for helicopter bucket water spraying, solving the problem in existing technologies of facilitating precise measurement and testing of helicopter bucket water spraying. The utility model includes a drainage device, a spraying device, a temperature detection device, a mobile workstation, and several adjustable supports that can be assembled together. Each adjustable support is equipped with a fire simulation device or a spraying quantity testing device. The mobile workstation is connected to both the spraying device and the temperature detection device. The drainage device is located on the spraying device and is used to spray the extinguishing agent. Through the coordinated use of the drainage device, spraying device, temperature detection device, mobile workstation, adjustable supports, fire simulation device, and spraying quantity testing device, this utility model can collect data on the deposition and distribution of extinguishing agent spraying, thus providing data support for actual firefighting processes.

Description

Technical Field

[0001] This utility model belongs to the technical field of fire extinguishing detection devices, specifically relating to a helicopter bucket water spraying and precise testing system. Background Technology

[0002] Forest fires typically occur in remote areas with dense vegetation, and they burn over a wide area and spread rapidly. Therefore, it is difficult to extinguish them using manual ground firefighting methods. Fire extinguishing agents are usually transported to designated locations by helicopters with baskets attached, and then sprayed onto the fire area through drainage devices to achieve firefighting operations.

[0003] In their daily training, firefighters frequently conduct forest fire suppression drills to prepare for forest fires. During these drills, firefighters need to collect data on the distribution and deposition of extinguishing agents. Current methods typically involve placing an array of measuring cups to collect this data. However, this method is generally manual, resulting in low efficiency, high labor intensity, and the need for relatively flat ground. This leads to significant discrepancies between the measuring cup array's placement environment and the actual forest environment, affecting the accuracy of the extinguishing agent distribution data. Furthermore, measuring cup arrays cannot accurately capture the distribution of extinguishing agents, thus failing to provide data support for actual fire suppression operations. Summary of the Invention

[0004] This utility model provides a helicopter bucket water spraying precision testing system and method to at least solve some of the above-mentioned technical problems.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A helicopter bucket-based water spraying precision testing system includes a drainage device, a spraying device, a temperature detection device, a mobile workstation, and several adjustable supports that can be assembled with each other. The adjustable supports are equipped with a fire simulation device or a spraying quantity testing device. The mobile workstation is connected to the spraying device and the temperature detection device respectively. The drainage device is located on the spraying device and is used to spray the extinguishing agent.

[0006] Furthermore, the adjusting bracket includes a mounting plate, a fixing plate rotatably mounted on the mounting plate for fixing the fire simulation device or the spraying quantity test device, and several lifting mechanisms hinged to the bottom of the mounting plate.

[0007] Furthermore, the lifting mechanism includes a support leg, a lifting column slidably disposed within the support leg and hinged to the bottom of the mounting plate; the support leg is provided with a sliding groove matching the lifting column, the support leg is provided with a plurality of adjustment holes A, the lifting column is provided with adjustment holes B, and a fixing rod is provided in the adjustment holes A and adjustment holes B.

[0008] Furthermore, the top of the mounting plate has a mounting groove, and the mounting groove has a protrusion for fixing the fire simulation device. The spraying quantity test device is installed in the mounting groove.

[0009] Furthermore, the mounting plate has several smoke exhaust holes and drainage holes that are connected to the mounting groove.

[0010] Furthermore, the fire simulation device includes a heat transfer plate detachably mounted on an adjusting bracket, a heat-resistant box detachably mounted inside the adjusting bracket, and an ignition device mounted inside the heat-resistant box.

[0011] Furthermore, the spraying volume testing device includes a detachable limiting plate mounted on an adjusting bracket, several elastic water receiving plates mounted on the limiting plate, and a scale mounted on the elastic water receiving plates; the limiting plate is provided with a limiting hole, and the elastic water receiving plates are installed in the limiting hole.

[0012] Furthermore, the dispensing device includes a firefighting helicopter, a basket mounted on the bottom of the firefighting helicopter, a level gauge and a concentration detector located in the basket, and a timer located on the firefighting helicopter; the firefighting helicopter, the level gauge, the concentration detector and the timer are wirelessly connected to the mobile workstation.

[0013] Furthermore, the temperature detection device includes a drone, an optoelectronic pod mounted on the drone, an infrared camera mounted on the optoelectronic pod, a microcontroller mounted on the drone for controlling the drone and the infrared camera, and a drone controller wirelessly connected to the microcontroller; the drone controller is connected to the mobile workstation wirelessly or via a data cable.

[0014] Compared with the prior art, the present invention has the following beneficial effects: This utility model has a simple structure, a scientific and reasonable design, and is easy to use. The adjustable bracket of this utility model facilitates the installation of the fire simulation device and the spraying quantity testing device. At the same time, the adjustable bracket can also adjust the height and angle of the fire simulation device and the spraying quantity testing device, so that the fire simulation device and the spraying quantity testing device are closer to the real forest after installation. This makes it easier to collect data on the spraying and deposition of fire extinguishing agents and the distribution of fire extinguishing agents, thereby providing data support for the actual fire extinguishing process.

[0015] This invention uses a spray volume testing device to collect the extinguishing agent sprayed by the spraying device. Firefighters can determine the spraying and deposition of the extinguishing agent based on the deposited extinguishing agent in the spraying device, thereby providing data support for the actual fire extinguishing process.

[0016] This invention combines a temperature detection device and a fire simulation device to collect data on the distribution of extinguishing agents, thereby providing data support for the actual fire extinguishing process. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the adjustment bracket of this utility model.

[0019] Figure 3 This is a schematic diagram of the lifting mechanism of this utility model.

[0020] Figure 4 This is a schematic diagram of the installation of the spraying amount testing device of this utility model.

[0021] Figure 5 for Figure 4 Sectional view of AA.

[0022] Figure 6 for Figure 5 Enlarged view of point A in the middle.

[0023] Figure 7 This is a schematic diagram of the installation of the fire simulation device of this utility model.

[0024] Figure 8 for Figure 7 A cross-sectional view of BB.

[0025] Figure 9 for Figure 8 Enlarged view of point B in the middle.

[0026] Figure 10 This is a bottom view of the heat-resistant box of this utility model.

[0027] Figure 11 This is a schematic diagram of the spraying device of this utility model.

[0028] Figure 12 This is a schematic diagram of the temperature detection device of this utility model.

[0029] Figure 13 This is a schematic diagram of the elastic water receiving tray of this utility model.

[0030] Figure 14 This is the control block diagram for this utility model.

[0031] The names corresponding to the reference numerals in the attached figures are as follows: 1. Drainage device; 2. Spraying device; 3. Temperature detection device; 4. Mobile workstation; 5. Adjustable bracket; 6. Mounting plate; 7. Fixing plate; 8. Support leg; 9. Lifting column; 10. Sliding groove; 11. Adjustment hole A; 12. Adjustment hole B; 13. Fixing rod; 14. Mounting groove; 15. Protrusion; 16. Smoke vent; 17. Drainage hole; 18. Heat transfer plate; 19. Heat-resistant box; 20. Ignition device; 21. Limiting plate; 22. Flexible water receiving tray; 23. Scale; 24. Limiting hole; 25. Firefighting helicopter; 26. Basket; 27. Liquid level gauge; 28. Concentration detector; 30. Timer; 31. UAV; 32. Photoelectric pod; 33. Infrared camera; 34. Microcontroller unit; 35. UAV controller; 36. Groove. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0033] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; of course, they can also refer to a mechanical connection or an electrical connection; furthermore, they can refer to a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. Example

[0035] like Figure 1-14As shown, the present invention provides a helicopter bucket water spraying precision testing system, including a drainage device 1, a spraying device 2, a temperature detection device 3, a mobile workstation 4, and several adjustable supports 5 that can be assembled with each other; the adjustable supports 5 are equipped with a fire simulation device or a spraying quantity testing device, and the mobile workstation 4 is connected to the spraying device 2 and the temperature detection device 3 respectively; the drainage device 1 is set on the spraying device 2 for spraying fire extinguishing agent.

[0036] The present invention's spraying device 2 can deliver fire extinguishing agent to a designated location and spray the fire extinguishing agent onto a fire simulation device or a spraying quantity testing device through a drainage device 1. The adjustable bracket 5 of this utility model facilitates the installation of the fire simulation device and the spraying quantity testing device. At the same time, the adjustable bracket 5 can also adjust the height and angle of the fire simulation device and the spraying quantity testing device, so that after installation, the fire simulation device and the spraying quantity testing device are closer to the real forest, thereby facilitating the collection of data on the spraying and deposition of fire extinguishing agents and the distribution of fire extinguishing agents.

[0037] In collecting data on the deposition of fire extinguishing agents, this invention installs a deposition testing device on an adjusting bracket 5. The deposition device 2 is activated, and it deposits the fire extinguishing agent onto the deposition testing device. The device collects the deposited agent, and firefighters determine the deposition status based on the amount of extinguishing agent deposited within the device, thus providing data support for the actual fire extinguishing process.

[0038] When collecting data on the distribution of extinguishing agents, this invention installs the fire simulation device on the adjusting bracket 5 and runs it for 10-20 minutes. The temperature detection device 3 then collects the temperature data and uses a visual algorithm to determine the temperature distribution on the heat transfer plate 18. When the extinguishing agent is sprayed onto the fire simulation device by the spraying device 2, the temperature detection device 3 again collects the temperature data and uses a visual algorithm to determine the temperature change distribution on the heat transfer plate 18. The temperature detection device 3 transmits the temperature distribution map and the temperature change distribution map to the mobile workstation 4. Firefighters can determine the distribution of the extinguishing agent based on the difference between the temperature distribution map and the temperature change distribution map, thus providing data support for the actual firefighting process.

[0039] In some embodiments, a more detailed structure of the adjusting bracket 5 is provided. The adjusting bracket 5 includes a mounting plate 6, a fixing plate 7 rotatably mounted on the mounting plate 6 for fixing the fire simulation device or the spraying quantity test device, and a plurality of lifting mechanisms hinged to the bottom of the mounting plate 6.

[0040] When this utility model is used, the fire simulation device or the spraying quantity test device is installed on the mounting plate 6 and fixed by the fixing plate 7. In addition, there are four lifting mechanisms, which are symmetrically arranged in pairs. Since the top of the lifting mechanism is hinged to the bottom of the mounting plate 6, the mounting plate 6 will rotate along the hinge during the adjustment of the lifting mechanism, thereby realizing the adjustment of the angle and height of the mounting plate 6, thus simulating the terrain in the forest.

[0041] In some embodiments, a more detailed structure of the lifting mechanism is provided. The lifting mechanism includes a support leg 8 and a lifting column 9 that is slidably disposed in the support leg 8 and hinged to the bottom of the mounting plate 6. The support leg 8 is provided with a sliding groove 10 that matches the lifting column 9. The support leg 8 is provided with a plurality of adjustment holes A11. The lifting column 9 is provided with an adjustment hole B12. A fixing rod 13 is provided in the adjustment hole A11 and the adjustment hole B12.

[0042] When adjusting the mounting plate 6, the present invention removes the fixing rod 13 and pushes the lifting column 9 to slide along the height direction of the sliding groove 10 so that one of the adjustment holes A11 and B12 are aligned. Then, the fixing rod 13 is placed into the adjustment holes A11 and B12 to complete the adjustment of the height of the lifting column 9. At the same time, since the lifting column 9 is hinged to the bottom of the mounting plate 6, when the height of two of the lifting columns 9 is inconsistent with the height of the other two lifting columns 9, the lifting column 9 will rotate along the hinge, thereby adjusting the angle of the mounting plate 6 to simulate the forest terrain.

[0043] The lifting column 9 of this utility model is provided with a hinge seat A, and the bottom of the mounting plate 6 is provided with a hinge seat B. The hinge seat A and the hinge seat B are connected by a hinge shaft.

[0044] In some embodiments, a more detailed structure of the mounting plate 6 is provided. The top of the mounting plate 6 is provided with a mounting groove 14, and a protrusion 15 for fixing the fire simulation device is provided in the mounting groove 14. The spraying amount test device is installed in the mounting groove 14.

[0045] In this invention, the mounting groove 14 facilitates the installation of the spraying quantity testing device, and the protrusion 15 is set in the mounting groove 14. When the fire simulation device is installed on the protrusion 15, the protrusion 15 can restrict the fire simulation device, thereby preventing the fire simulation device from sliding when the mounting plate 6 is tilted.

[0046] In some embodiments, the mounting plate 6 has a plurality of smoke exhaust holes 16 and drainage holes 17 that communicate with the mounting groove 14.

[0047] In this invention, the smoke exhaust hole 16 can exhaust the smoke generated when the fire simulation device is burning. At the same time, when the fire simulation device is burning, air can also enter the mounting groove 14 through the drain hole 17 to facilitate the combustion of the fire simulation device. The drain hole 17 can discharge the extinguishing agent in the mounting groove 14, thereby preventing the extinguishing agent from accumulating in the mounting groove 14.

[0048] In some embodiments, a more detailed structure of the fire simulation device is provided. The fire simulation device includes a heat transfer plate 18 detachably mounted on an adjusting bracket 5, a heat-resistant box 19 detachably mounted inside the adjusting bracket 5, and an ignition device 20 mounted inside the heat-resistant box 19.

[0049] In this utility model, the bottom of the heat-resistant box 19 is provided with a groove 36 that matches the protrusion 15. The heat-resistant box 19 is installed on the protrusion 15 through the groove 36, thereby limiting the position of the heat-resistant box 19. In use, the heat-resistant box 19 is installed on the protrusion 15 through the groove 36, the ignition device 20 is placed inside the heat-resistant box 19, and the heat transfer plate 18 is placed in the mounting groove 14 and fixed by the fixing plate 7.

[0050] The ignition device 20 of this utility model can use substances such as coal and charcoal that can burn continuously and generate heat.

[0051] In some embodiments, a more detailed structure of the spraying amount testing device is provided. The spraying amount testing device includes a limiting plate 21 detachably mounted on the adjusting bracket 5, a plurality of elastic water receiving plates 22 mounted on the limiting plate 21, and a scale 23 mounted on the elastic water receiving plates 22. The limiting plate 21 is provided with a limiting hole 24, and the elastic water receiving plates 22 are installed in the limiting hole 24.

[0052] This invention features a flexible water receiving tray 22 with several parallel water receiving grooves. A scale 23 is mounted on the water receiving grooves, and a limiting plate 21 has limiting holes 24. The water receiving grooves correspond one-to-one with the limiting holes 24, thus facilitating the installation of the flexible water receiving tray 22. This allows for the collection of extinguishing agent dispensed by the dispensing device 2. Firefighters can observe the volume of extinguishing agent in the water receiving grooves using the scale 23 to determine the dispensing and sedimentation status of the extinguishing agent. The flexible water receiving tray 22 of this invention is made of transparent material.

[0053] In some embodiments, a more detailed structure of the spraying device 2 is provided. The spraying device 2 includes a fire-fighting helicopter 25, a basket 26 mounted on the bottom of the fire-fighting helicopter 25, a level gauge 27 and a concentration detector 28 disposed in the basket 26, and a timer 30 disposed on the fire-fighting helicopter 25. The fire-fighting helicopter 25, the level gauge 27, the concentration detector 28 and the timer 30 are wirelessly connected to the mobile workstation 4.

[0054] The mobile workstation 4 of this invention is equipped with a wireless transceiver A, and the firefighting helicopter 25 is equipped with a wireless transceiver B. Wireless transceiver A and wireless transceiver B are wirelessly connected. In use, fire extinguishing agents are placed into the basket 26, and the firefighting helicopter 25 moves the basket 26 to a designated location. At this time, a level gauge 27 can monitor the fire extinguishing agents in the basket 26 in real time, and a concentration detector 28 can monitor the concentration of the fire extinguishing agents at all times. The level gauge 27 and the concentration detector 28 transmit the detection results to wireless transceiver B via wireless transceiver A, and wireless transceiver B transmits the detection results to the mobile workstation 4, so that firefighters can understand the amount and concentration of the fire extinguishing agents deployed. In this invention, the timer 30 can detect the release time of the extinguishing agent, and the level gauge 27 can detect the liquid volume in the basket 26 in real time. The detection results of the timer 30 and the level gauge 27 are transmitted to the wireless transceiver A via the wireless transceiver B. The wireless transceiver A transmits the detection results of the timer 30 and the level gauge 27 to the mobile workstation 4. The mobile workstation 4 calculates the spraying speed of the extinguishing agent within that time based on the detection results of the timer 30 and the level gauge 27 from the wireless transceiver A. At the same time, based on the spraying speed and the deposition of the extinguishing agent, the fire extinguishing effect is determined, thereby providing data support for the actual fire extinguishing process.

[0055] In some embodiments, a more detailed structure of the temperature detection device 3 is provided. The temperature detection device 3 includes a drone 31, an optoelectronic pod 32 mounted on the drone 31, an infrared camera 33 mounted on the optoelectronic pod 32, a microcontroller unit 34 mounted on the drone 31 for controlling the drone 31 and the infrared camera 33, and a drone controller 35 wirelessly connected to the microcontroller unit 34. The drone controller 35 is connected to the mobile workstation 4 wirelessly or via a data cable.

[0056] In use, the drone operator controls the drone 31 via the drone controller 35 and microcontroller 34. The drone 31 moves synchronously with the photoelectric pod 32 and infrared camera 33. When it is necessary to collect data on the distribution of fire extinguishing agents, the drone operator controls the infrared camera 33 via the drone controller 35 and microcontroller 34. The infrared camera 33 collects the temperature on the heat transfer plate 18 and determines the temperature distribution map. When the fire extinguishing agent is sprayed onto the spraying device 2, the infrared camera 33 is controlled again to collect the temperature on the heat transfer plate 18 and determine the temperature change distribution map. The infrared camera 33 transmits the temperature distribution map and the temperature change distribution map to the mobile workstation 4 via the microcontroller 34 and drone controller 35. Firefighters determine the distribution of fire extinguishing agents by observing the temperature distribution map and the temperature change distribution map on the mobile workstation 4.

[0057] After the fire extinguishing agent of this invention is sprayed, the fire extinguishing agent will carry away the temperature on the heat transfer plate 18. Based on the temperature distribution diagram and the temperature change distribution diagram, the distribution of the fire extinguishing agent can be determined.

[0058] Working principle.

[0059] Deploy the mounting plate 6 on an open ground, place the limiting plate 21 on the mounting plate 6, and fix the elastic water receiving tray 22 by rotating the fixing plate 7. Place the elastic water receiving tray 22 into the limiting hole 24; adjust the height between the lifting column 9 and the outrigger 8 to adjust the height and angle of the mounting plate 6; start the firefighting helicopter 25; the firefighting helicopter 25 moves the basket 26 to the designated location and activates the drainage device 1 on the basket 26, so that the fire extinguishing agent in the basket 26 is discharged through the drainage device 1. The fire extinguishing agent falls into the elastic water receiving tray 22 under its own gravity. Firefighters observe the elastic water receiving tray 22. The capacity of the extinguishing agent inside is determined to ascertain the deposition and distribution of the extinguishing agent. To further determine the distribution of the extinguishing agent, the limiting plate 21 is removed from the mounting plate 6 without changing its height and angle. The heat-resistant box 19 and the ignition device 20 are then installed on the mounting plate 6, and the heat transfer plate 18 is installed on the mounting plate 6 via the fixing plate 7. After 10-20 minutes, the drone operator controls the drone 31 to take off and reach the predetermined position via the drone controller 35 and the microcontroller unit 34. The drone 31 moves the photoelectric pod 32 and the infrared camera 33, and the infrared camera 33 monitors the temperature of the heat transfer plate 18. Temperature data is collected, and a visual algorithm (an existing algorithm) is used to determine the temperature distribution map on the heat transfer plate 18. The infrared camera 33 transmits the temperature distribution map to the mobile workstation 4 via the microcontroller 34 and the drone controller 35. The firefighting helicopter 25 is then activated. The location of the firefighting helicopter 25, the concentration of the fire extinguishing agent, and the discharge rate of the drainage device 1 are kept as consistent as possible with the data from the previous deployment. The fire extinguishing agent falls onto the heat transfer plate 18 under its own gravity for cooling. The drone operator controls the infrared camera 33 again via the drone controller 35 and the microcontroller 34. During operation, the infrared camera 33 collects temperature data on the heat transfer plate 18 and uses a visual algorithm to determine the temperature change distribution map on the heat transfer plate 18. The infrared camera 33 transmits the temperature change distribution map to the mobile workstation 4 through the microcontroller unit 34 and the drone controller 35. The mobile workstation 4 determines the distribution of fire extinguishing agents based on the temperature difference between the temperature distribution map and the temperature change distribution map. Firefighters analyze the fire extinguishing effect of the fire extinguishing agent dropped by the helicopter on the ground area based on the deposition distribution and the distribution of the fire extinguishing agent, thus providing more data support for the actual fire extinguishing process.

[0060] The drainage device 1, fire-fighting helicopter 25, liquid level gauge 27, concentration detector 28, timer 30, drone 31, photoelectric pod 32, infrared camera 33, microcontroller 34, drone controller 35, wireless transceiver A and wireless transceiver B used in this utility model are existing technologies and can be purchased and used directly on the market. Therefore, the structure, circuit and principle of the drainage device 1, fire-fighting helicopter 25, liquid level gauge 27, concentration detector 28, timer 30, drone 31, photoelectric pod 32, infrared camera 33, microcontroller 34, drone controller 35, wireless transceiver A and wireless transceiver B will not be described in detail here.

[0061] Finally, it should be noted that the above embodiments are merely preferred embodiments of this utility model used to illustrate the technical solutions of this utility model, and are not intended to limit it, nor are they intended to limit the patent scope of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model. That is to say, any changes or refinements made to the main design concept and spirit of this utility model that are not of substantial significance, but whose technical problems are still consistent with those of this utility model, should be included within the protection scope of this utility model. In addition, the direct or indirect application of the technical solutions of this utility model to other related technical fields are similarly included within the patent protection scope of this utility model.

Claims

1. A helicopter bucket-based water distribution precision testing system, comprising a drainage device (1), characterized in that, It also includes a spraying device (2), a temperature detection device (3), a mobile workstation (4), and several adjustable supports (5) that can be assembled with each other; the adjustable supports (5) are equipped with a fire simulation device or a spraying quantity testing device, and the mobile workstation (4) is connected to the spraying device (2) and the temperature detection device (3) respectively; the drainage device (1) is installed on the spraying device (2) for spraying extinguishing agent.

2. The helicopter bucket-based water distribution precision testing system according to claim 1, characterized in that, The adjusting bracket (5) includes a mounting plate (6), a fixing plate (7) rotatably mounted on the mounting plate (6) for fixing the fire simulation device or the spraying quantity test device, and several lifting mechanisms hinged to the bottom of the mounting plate (6).

3. The helicopter bucket-based water distribution precision testing system according to claim 2, characterized in that, The lifting mechanism includes a support leg (8) and a lifting column (9) which is slidably disposed in the support leg (8) and hinged to the bottom of the mounting plate (6); the support leg (8) is provided with a sliding groove (10) that matches the lifting column (9); the support leg (8) is provided with several adjustment holes A (11); the lifting column (9) is provided with adjustment holes B (12); and a fixing rod (13) is provided in the adjustment holes A (11) and B (12).

4. The helicopter bucket-based water distribution precision testing system according to claim 3, characterized in that, The mounting plate (6) has a mounting groove (14) on the top. The mounting groove (14) has a protrusion (15) for fixing the fire simulation device. The spraying amount test device is installed in the mounting groove (14).

5. A system for precision testing of a helicopter bucket drop spread according to claim 4, wherein, The mounting plate (6) has several smoke exhaust holes (16) and drainage holes (17) that are connected to the mounting groove (14).

6. The helicopter bucket-based water distribution precision testing system according to claim 1, characterized in that, The fire simulation device includes a heat transfer plate (18) detachably mounted on an adjusting bracket (5), a heat-resistant box (19) detachably mounted inside the adjusting bracket (5), and an ignition device (20) mounted inside the heat-resistant box (19).

7. The helicopter bucket-based water distribution precision testing system according to claim 1, characterized in that, The spraying volume testing device includes a detachable limiting plate (21) on the adjusting bracket (5), several elastic water receiving plates (22) on the limiting plate (21), and a scale (23) on the elastic water receiving plate (22); the limiting plate (21) is provided with a limiting hole (24), and the elastic water receiving plate (22) is installed in the limiting hole (24).

8. The helicopter bucket-based water distribution precision testing system according to claim 1, characterized in that, The spraying device (2) includes a fire-fighting helicopter (25), a basket (26) mounted on the bottom of the fire-fighting helicopter (25), a level gauge (27) and a concentration detector (28) installed in the basket (26), and a timer (30) installed on the fire-fighting helicopter (25); the fire-fighting helicopter (25), the level gauge (27), the concentration detector (28) and the timer (30) are wirelessly connected to the mobile workstation (4).

9. The helicopter bucket-based water distribution precision testing system according to claim 1, characterized in that, The temperature detection device (3) includes a drone (31), an optoelectronic pod (32) mounted on the drone (31), an infrared camera (33) mounted on the optoelectronic pod (32), a microcontroller unit (34) mounted on the drone (31) for controlling the drone (31) and the infrared camera (33), and a drone controller (35) wirelessly connected to the microcontroller unit (34); the drone controller (35) is connected to the mobile workstation (4) wirelessly or via a data cable.

Images