A forest fire detection drone

Abstract

The present invention discloses a forest fire detection drone, which includes a drone body, a monitor provided with a type-II superlattice infrared detector, a ground control handle, two sets of control circuits, and two sets of locators. In the present invention, the drone body is equipped with a monitor for forest fire detection. Through the cooperation of a threaded rod, a secondary rod, and a fixing block, it can be adapted to two specifications of threaded holes and a pan-tilt head, meeting the requirements of being paired with different models of drones, greatly improving the practicality. When an accident is about to occur and the drone is about to crash, the ground control handle controls the servo motor to rotate through the control circuit in the monitor, so that two arc-shaped strips are driven by gears to move in opposite directions, causing the ends of the first movable cover and the second movable cover away from the arc-shaped strips to close, protecting the monitor therein and avoiding damage during high-altitude fall. The two sets of buffer pads provided can play a buffering role at the moment of landing.

Description

Technical Field

[0001] The present invention relates to the technical field of drones, and in particular to a forest fire detection drone. Background Art

[0002] Forest fires are a serious natural disaster that will cause immeasurable losses to the country once they occur. Since forest fires mostly occur in large, uninhabited mountainous areas, many fires get out of control and spread rapidly because they cannot be detected in time, causing huge economic losses to people. With the development of technology, technicians have begun to use drones in combination with monitoring devices to detect forest fires. The real-time aerial images taken by drones cooperate with mountain patrol team members to form a "three-dimensional air and land" fire monitoring pattern. Various dynamic information in the forest area can be clearly seen in a timely manner, hotspots can be quickly verified, potential forest fire hazards can be detected in time, and the time for forest area inspections and patrols can be effectively shortened. By striving to play the greatest role with the least amount of manpower, the efficiency of forest inspections and the monitoring effect have been greatly improved.

[0003] Existing forest fire detection devices using drones generally use a detachable connection in the form of threads or a gimbal. When a group of drones need to be charged or maintained, other drones can continue to carry the monitor for detection work. However, the existing connection methods are generally unique, that is, the gimbal and thread connection methods are not universal, or the thread hole sizes of different models of drones are also different, resulting in the monitor not being adaptable to multiple drones of different models, and the practicality is insufficient. In addition, the situation of drones crashing due to various accidents occurs from time to time. The structural design of the drone itself is already relatively mature, and there will not be much damage even if it falls from a high altitude. However, the current common monitors are not well protected. Once they fall from a high altitude, although theoretically they can be protected by the landing gear of the drone, in fact, the falling point may not be flat ground, but may also be a pile of rocks, which is likely to cause damage to the monitor. It is necessary to improve the drone forest fire detection device to address the above deficiencies. Summary of the Invention

[0004] The purpose of the present invention is to solve the deficiencies existing in the prior art and to propose a forest fire detection drone.

[0005] To achieve the above object, the present invention adopts the following technical solutions: A forest fire detection drone, comprising a drone body, a monitor provided with a type-II superlattice infrared detector, a ground control handle, two sets of control circuits, and two sets of locators. The drone body is composed of a frame, a housing, and four sets of propellers. The housing is fixedly connected to the upper wall of the frame. The four sets of propellers are respectively arranged at the four corners of the frame. Two sets of landing gears are fixedly connected to the lower wall of the frame. A connecting column is threadedly connected between the two sets of landing gears on the lower wall of the frame through a first connecting structure. The outer wall of the end of the connecting column facing the frame is provided with a second connecting structure. The end of the connecting column away from the frame is fixedly connected with a protective shell. The side view cross-section of the protective shell is semicircular. Fixed sleeves are fixedly connected to the inner left wall and the inner right wall of the protective shell. Fixed rods are arranged on the inner side walls of the two fixed sleeves. The monitor is fixedly connected between the opposite ends of the two fixed rods. A buffer structure is arranged between the fixed rods and the fixed sleeves. Guide strips are fixedly connected to the inner left wall and the inner right wall of the protective shell and outside the fixed sleeves respectively. A first movable cover and a second movable cover which are arranged oppositely are slidably connected between the two guide strips and the circumferential inner wall of the protective shell. A driving structure is arranged between the opposite ends of the first movable cover and the second movable cover above the monitor and the protective shell.

[0006] As a further description of the above technical solution:

[0007] The first connecting structure includes a screw rod, two sets of tightening nuts, and two sets of threaded holes. The two sets of threaded holes are respectively arranged on the lower wall of the frame and the upper end of the connecting column. The screw rod is threadedly connected between the two sets of threaded holes. The connecting column is threadedly connected to the frame through the screw rod. One end of the screw rod is provided with a secondary rod. Threads are arranged on the outer wall of the secondary rod and the two ends of the screw rod, and the thread size on the secondary rod is smaller than the thread size on the outer wall of the screw rod. The two sets of tightening nuts are both threadedly connected to the outer wall of the screw rod.

[0008] As a further description of the above technical solution:

[0009] The second connecting structure is a fixed block, and the fixed block is fixedly connected to the outer wall of the end of the connecting column facing the frame.

[0010] As a further description of the above technical solution:

[0011] The buffer structure is two sets of buffer pads, and the two sets of buffer pads are respectively arranged between the outer walls of the two fixed rods and the inner side walls of the two fixed sleeves.

[0012] As a further description of the above technical solution:

[0013] The driving structure includes a partition board, a servo motor, a gear, two arc strips and two avoidance holes. The partition board is fixedly connected between the inner left wall and the inner right wall of the protective shell and is located between the fixed sleeve and the guide strip. The servo motor is fixedly connected to the upper wall of the partition board, and the gear is fixedly connected to the end of the protruding shaft of the partition board.

[0014] As a further description of the above technical solution:

[0015] The two arc strips are respectively fixedly connected to one ends of the first movable cover and the second movable cover facing the gear and are respectively located on the left and right sides of the gear. The two avoidance holes are respectively arranged at one ends of the first movable cover and the second movable cover facing the gear and are respectively opposite to the positions of the two arc strips. The two arc strips are respectively slidably connected to the two avoidance holes at the ends far away from the first movable cover and the second movable cover. Tooth teeth meshing with the outer wall of the gear are arranged on one sides of the two arc strips facing the gear.

[0016] The present invention has the following beneficial effects:

[0017] 1. Compared with the prior art, for this forest fire detection unmanned aerial vehicle (UAV), the UAV body carries a monitor and flies. The forest fire is detected through the two-color superlattice infrared detector built in the monitor. Through the cooperation of the threaded rod, the auxiliary rod and the fixing block, it can be adapted to two specifications of threaded holes and the cloud platform, meeting the matching with different models of UAVs and greatly improving the practicability.

[0018] 2. Compared with the prior art, for this forest fire detection UAV, when an accident is about to occur and the UAV is about to crash, the servo motor is controlled to rotate through the ground control handle via the control circuit in the monitor. Then, the two arc strips are toggled by the gear to move in opposite directions, so that the ends of the first movable cover and the second movable cover away from the arc strips are closed, protecting the monitor therein and avoiding damage during high-altitude falling. The two buffer pads provided can play a buffering role at the moment of landing. Description of the Drawings

[0019] Figure 1 It is a schematic diagram of the overall structure of a forest fire detection UAV proposed by the present invention;

[0020] Figure 2 It is a partial cross-sectional view of the side structure of the protective shell and the connecting column of a forest fire detection UAV proposed by the present invention;

[0021] Figure 3 It is a schematic diagram of the structure of the second movable cover of a forest fire detection UAV proposed by the present invention;

[0022] Figure 4 It is a partial cross-sectional view of the protective cover, the guide strip, the partition board and the fixed sleeve of a forest fire detection UAV proposed by the present invention;

[0023] Figure 5 Schematic diagram of the screw and lock nut connection structure of a forest fire detection drone proposed by the present invention.

[0024] Legend:

[0025] 1. Frame; 2. Housing; 3. Propeller; 4. Landing gear; 5. Protective shell; 6. First movable cover; 7. Second movable cover; 8. Monitor; 9. Guide bar; 10. Partition; 11. Servo motor; 12. Gear; 13. Arc bar; 14. Avoidance hole; 15. Connecting column; 16. Threaded hole; 17. Fixed block; 18. Screw; 19. Lock nut; 20. Fixed rod; 21. Buffer pad; 22. Fixed sleeve; 23. Sub-bar. Specific implementation mode

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] Referring to Figures 1 to 5 , a forest fire detection drone provided by the present invention includes a drone body, a monitor 8 provided with a two-class superlattice infrared detector, a ground control handle, two sets of control circuits, and two sets of locators. The drone body is composed of a frame 1, a housing 2, and four sets of propellers 3. The housing 2 is fixedly connected to the upper wall of the frame 1. The four sets of propellers 3 are respectively arranged at the four corners of the frame 1. Two sets of landing gears 4 are fixedly connected to the lower wall of the frame 1. The two sets of locators are respectively located inside the monitor 8 and the drone body for separate positioning. The two sets of control circuits are respectively arranged inside the monitor 8 and the drone body for separate control. A wireless communication module for facilitating image transmission is also arranged in the monitor 8. The monitor 8 detects fires through a two-class superlattice infrared detector. The parts and circuit parts used in the above technologies are all common technologies on the market, and will not be elaborated in this embodiment;

[0028] The lower wall of the frame 1 is located between the two sets of landing gears 4 and is threadedly connected with a connecting column 15 through a first connecting structure. The first connecting structure includes a screw 18, two sets of tightening nuts 19 and two sets of threaded holes 16. The two sets of threaded holes 16 are respectively arranged on the lower wall of the frame 1 and the upper end of the connecting column 15. The screw 18 is threadedly connected between the two sets of threaded holes 16. The connecting column 15 is threadedly connected to the frame 1 through the screw 18. A sub-rod 23 is arranged at one end of the screw 18. The outer wall of the sub-rod 23 and the outer walls at both ends of the screw 18 are both provided with threads, and the thread size on the sub-rod 23 is smaller than the thread size of the outer wall of the screw 18. The two sets of tightening nuts 19 are both threadedly connected to the outer wall of the screw 18. The thread size of the sub-rod 23 and the screw 18 can be any one of M6 / M8, M6 / M10, and M8 / M10, which can be adapted to the threaded holes 16 of at least two different types of drones;

[0029] A second connection structure is provided on the outer wall of one end of the connection column 15 facing the frame 1. The second connection structure is a fixing block 17. The fixing block 17 is fixedly connected to the outer wall of one end of the connection column 15 facing the frame 1. The fixing block 17 can be connected to the gimbal base provided with the drone body commonly found on the market.

[0030] The end of the connecting column 15 away from the frame 1 is fixedly connected to the protective shell 5, and the side view cross section of the protective shell 5 is semicircular. The inner left wall and the inner right wall of the protective shell 5 are fixedly connected to the fixing sleeve 22, and the inner walls of the two sets of fixing sleeves 22 are both provided with fixing rods 20. The monitor 8 is fixedly connected between the opposite ends of the two sets of fixing rods 20, and a buffer structure is provided between the fixing rods 20 and the fixing sleeves 22. The buffer structure is two sets of buffer pads 21, and the two sets of buffer pads 21 are respectively provided between the outer walls of the two sets of fixing rods 20 and the inner walls of the two sets of fixing sleeves 22. When a fall from a high altitude occurs, the impact force is buffered by the two sets of buffer pads 21 at the moment of landing;

[0031] A group of guide bars 9 are fixedly connected to the inner left wall and the inner right wall of the protective shell 5 and are located on the periphery of the fixed sleeve 22. A first movable cover 6 and a second movable cover 7 are slidably connected between the two groups of guide bars 9 and the inner wall of the circumference of the protective shell 5. A driving structure is arranged between the first movable cover 6 and the second movable cover 7 located at opposite ends above the monitor 8 and the protective shell 5. The driving structure includes a partition 10, a servo motor 11, a gear 12, two groups of arc bars 13 and two groups of avoidance holes 14. The partition 10 is fixedly connected between the inner left wall and the inner right wall of the protective shell 5 and is located between the fixed sleeve 22 and the guide bar 9. The servo motor 11 is fixedly connected to the upper wall of the partition 10. The gear 12 is fixedly connected to the end of the shaft extending out of the partition 10. The two groups of arc bars 13 are respectively fixedly connected to one side of the first movable cover 6 and the second movable cover 7 facing the gear 12. The two ends are respectively located on the left and right sides of the gear 12, the two groups of avoidance holes 14 are respectively arranged at the end of the first movable cover 6 and the second movable cover 7 facing the gear 12 and are respectively opposite to the two groups of arc bars 13, the ends of the two groups of arc bars 13 away from the first movable cover 6 and the second movable cover 7 are respectively slidably connected with the two groups of avoidance holes 14, and the two groups of arc bars 13 are provided with teeth meshing with the outer wall of the gear 12 on the side facing the gear 12. When a high-altitude fall is about to occur, the servo motor 11 is started by the ground control handle, and the rotation of the servo motor 11 drives the gear 12 to rotate. The gear 12 drives the two groups of arc bars 13 to move in opposite directions through the meshing relationship with the arc bars 13, thereby pushing the first movable cover 6 and the second movable cover 7 out from the inside of the protective shell 5, closing the opening of the protective shell 5, and preventing the monitor 8 from directly hitting the stone and causing damage when it falls to the ground.

[0032] Working principle: Two sets of positioners are located in the monitor 8 and the drone body respectively, and can be positioned separately. Two sets of control circuits are respectively set in the monitor 8 and the drone body for separate control. The monitor 8 is also provided with a wireless communication module for facilitating image transmission. The monitor 8 performs fire detection through a second-class superlattice infrared detector. The thread size of the auxiliary rod 23 and the screw rod 18 can be any one of M6 / M8, M6 / M10, and M8 / M10, and can be adapted to at least two different types of drone thread holes 16. The fixing block 1 7 can be connected to the gimbal base of the common drone body on the market. When a high-altitude fall is about to occur, the servo motor 11 is controlled by the ground control handle to start, and the rotation of the servo motor 11 drives the gear 12 to rotate. The gear 12 drives the two groups of arc bars 13 to move in opposite directions through the meshing relationship with the arc bar 13, so that the first movable cover 6 and the second movable cover 7 are pushed out from the inside of the protective shell 5, and the opening of the protective shell 5 is closed to prevent the monitor 8 from being directly hit on the stone when it falls to the ground and causing damage. At the moment of landing, the impact force is buffered by the two groups of buffer pads 21.

[0033] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A forest fire detection drone, comprising a drone body, a monitor (8) provided with a type-II superlattice infrared detector, a ground control handle, two sets of control circuits, and two sets of locators, characterized in that: The UAV body is composed of a frame (1), a housing (2), and four sets of propellers (3). The housing (2) is fixedly connected to the upper wall of the frame (1). The four sets of propellers (3) are respectively arranged at the four corners of the frame (1). Two sets of landing gears (4) are fixedly connected to the lower wall of the frame (1). A connecting column (15) is threadedly connected between the two sets of landing gears (4) on the lower wall of the frame (1) through a first connecting structure. A second connecting structure is arranged on the outer wall of the end of the connecting column (15) facing the frame (1). A protective shell (5) is fixedly connected to the end of the connecting column (15) away from the frame (1). The side view cross-section of the protective shell (5) is semicircular. Fixed sleeves (22) are fixedly connected to both the inner left wall and the inner right wall of the protective shell (5). Fixed rods (20) are arranged on the inner side walls of the two fixed sleeves (22). A monitor (8) is fixedly connected between the opposite ends of the two fixed rods (20). A buffer structure is arranged between the fixed rod (20) and the fixed sleeve (22). A set of guide bars (9) are respectively fixedly connected to the inner left wall and the inner right wall of the protective shell (5) and outside the fixed sleeve (22). A first movable cover (6) and a second movable cover (7) which are arranged oppositely are slidably connected between the two guide bars (9) and the circumferential inner wall of the protective shell (5). A driving structure is arranged between the opposite ends of the first movable cover (6) and the second movable cover (7) above the monitor (8) and the protective shell (5). The first connecting structure includes a screw rod (18), two sets of jam nuts (19), and two threaded holes (16). The two threaded holes (16) are respectively arranged on the lower wall of the frame (1) and the upper end of the connecting column (15). The screw rod (18) is threadedly connected between the two threaded holes (16). The connecting column (15) is threadedly connected to the frame (1) through the screw rod (18). A secondary rod (23) is arranged at one end of the screw rod (18). Threads are arranged on the outer wall of the secondary rod (23) and the outer walls of both ends of the screw rod (18), and the thread size on the secondary rod (23) is smaller than the thread size on the outer wall of the screw rod (18). The two sets of jam nuts (19) are both threadedly connected to the outer wall of the screw rod (18). The second connecting structure is a fixed block (17). The fixed block (17) is fixedly connected to the outer wall of the end of the connecting column (15) facing the frame (1).

2. The forest fire detection drone according to claim 1, wherein: The buffer structure is two sets of buffer pads (21). The two sets of buffer pads (21) are respectively arranged between the outer walls of the two fixed rods (20) and the inner side walls of the two fixed sleeves (22).

3. The forest fire detection drone according to claim 2, characterized in that: The driving structure includes a partition plate (10), a servo motor (11), a gear (12), two sets of arc strips (13), and two avoidance holes (14). The partition plate (10) is fixedly connected between the inner left wall and the inner right wall of the protective shell (5) and is located between the fixed sleeve (22) and the guide bar (9). The servo motor (11) is fixedly connected to the upper wall of the partition plate (10). The gear (12) is fixedly connected to the end of the protruding shaft of the partition plate (10).

4. The forest fire detection drone according to claim 3, wherein: Two groups of the arc-shaped strips (13) are respectively fixedly connected to one ends of the first movable cover (6) and the second movable cover (7) facing the gear (12), and are respectively located on the left and right sides of the gear (12). Two groups of the avoidance holes (14) are respectively arranged at one ends of the first movable cover (6) and the second movable cover (7) facing the gear (12), and are respectively opposite to the positions of the two groups of arc-shaped strips (13). One ends of the two groups of arc-shaped strips (13) far away from the first movable cover (6) and the second movable cover (7) are respectively slidably connected to the two groups of avoidance holes (14). Tooth teeth meshing with the outer wall of the gear (12) are arranged on one sides of the two groups of arc-shaped strips (13) facing the gear (12).

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