A kind of unmanned plane for vegetation investigation in reservoir drawdown area

Abstract

The application relates to a kind of unmanned aerial vehicle for vegetation investigation in reservoir drawdown area, comprising main body, a plurality of connecting arms connected to the main body, and a propeller located on the connecting arm.The main body is connected with a plurality of support rods, the angle between each support rod and the main body can be fixed, and the length of each support rod can be changed, so that the length of the support rod can be changed according to the terrain of the reservoir drawdown area, and the unmanned aerial vehicle can be parked on different terrains.

Description

Technical Field

[0001] This application relates to the field of drones for vegetation surveys, specifically to a drone for surveying vegetation in the drawdown zone of a reservoir. Background Technology

[0002] The drawdown zone of a reservoir refers to the area of ​​the shoreline that is temporarily submerged or exposed due to reservoir operation and management, between the normal water level and the gradual receding water level to the flood control limit. For mountainous river-type reservoirs, the drawdown zone is large but relatively narrow, mostly consisting of steep slopes and wasteland, with landforms primarily including floodplains, gentle hills, and slopes. Understanding the current distribution and growth status of vegetation in the drawdown zone, and obtaining timely and accurate photographs and video images of the vegetation, is an important technical means for the management and restoration of reservoir drawdown zones.

[0003] Unmanned aerial vehicles (UAVs), also known as drones, are unmanned aircraft controlled by radio remote control equipment and onboard program control devices, or operated autonomously, either completely or intermittently, by an onboard computer. UAVs are widely used in environmental protection, monitoring air, soil, vegetation, and water quality. Patent application number 2022100605795 discloses a plant protection UAV that solves the problem that most existing plant protection UAVs rely on simple cones to anchor the drone to the ground. The smooth surface of these cones provides poor grip, easily causing the UAV to bounce, vibrate, and tip over upon impact. However, existing plant protection UAVs have fixed-length brackets, and each bracket is the same length, limiting their parking to flat surfaces and preventing them from parking on uneven terrain such as reservoir drawdown zones, thus hindering the collection of vegetation data in these areas. Summary of the Invention

[0004] The purpose of this application is to provide a drone for surveying vegetation in the drawdown zone of a reservoir, which can be docked on different terrains and can perform directional collection and photography of vegetation in the drawdown zone of the reservoir.

[0005] To achieve the above objectives, this application provides the following technical solution:

[0006] This application provides a drone for surveying vegetation in the drawdown zone of a reservoir, including a main body, several connecting arms connected to the main body, and propellers located on the connecting arms. Several support rods are connected to the main body. The angle between each support rod and the main body can be fixed, and the length of each support rod can be varied so as to change the length of the support rod according to the terrain of the drawdown zone of the reservoir, thereby enabling the drone to be docked on different terrains.

[0007] In a preferred embodiment, the support rod includes a first support rod and a second support rod movably connected to the first support rod. The first support rod has a first movable channel, and the end of the second support rod has a first piston. The first piston is located in the first movable channel and can move within the first movable channel. When the first piston moves within the first movable channel, the second support rod can move relative to the first support rod, thereby changing the length of the support rod. The first movable channels in each first support rod are interconnected.

[0008] In a preferred embodiment, each first active channel is connected to a cavity located within the main body. The cavity is connected to the outside via an air tube, which is equipped with a miniature air pump to control the air pressure in the cavity.

[0009] In a preferred embodiment, the second support rod is provided with a second movable channel, and a second piston is provided in the second movable channel. The second piston is connected to a third support rod. The first piston is provided with a gas delivery channel, a spring cavity, a spring located in the spring cavity, and a moving channel. A moving rod is provided in the moving channel, and a second magnet is provided at the end of the moving rod. An air passage is provided on the moving rod, and the moving rod is connected to the spring. A first magnet is provided on the inner wall of the first movable channel. When the first piston moves to the position of the first magnet, the first magnet applies a force to the second magnet, causing the moving rod to move in the moving channel, thereby causing the air passage to be located in the gas delivery channel, opening the gas delivery channel, and allowing the gas in the first movable channel to enter the second movable channel. When the first magnet stops applying a force to the second magnet, the air passage leaves the gas delivery channel, thereby closing the gas delivery channel.

[0010] In a preferred embodiment, a blocking element is provided at the end of the first movable channel within the first support rod to prevent the first piston from continuing to move toward the end of the first movable channel.

[0011] In a preferred embodiment, the connecting arm is foldable and retractable. The main body is connected to four support rods, each of which is inclined outwards. The main body is connected to six connecting arms.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] The support rods connected to the drone of this invention have variable lengths for each support rod, and each support rod experiences essentially the same ground support force, enabling the drone to dock on different terrains and to perform directional data collection and photography of vegetation in the drawdown zone of a reservoir. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This refers to the drone described in this embodiment;

[0016] Figure 2 This is a schematic diagram of the support rod connection;

[0017] Figure 3 This is a schematic diagram of the support rod;

[0018] Figure 4 This is a schematic diagram of the first piston.

[0019] The markings in the diagram are: 100-Main body, 110-Cavity, 120-Air pipe, 200-Connecting arm, 300-Propeller, 400-Support rod, 410-First support rod, 413-First movable channel, 411-First magnet, 412-Blocking component, 420-First piston, 421-Air supply channel, 422-Spring cavity, 423-Spring, 424-Moving channel, 425-Moving rod, 426-Second magnet, 427-Air passage, 430-Second support rod, 431-Second movable channel, 432-Second piston, 433-Third support rod. Detailed Implementation

[0020] The technical solutions of the embodiments of this application will now be described with reference to the accompanying drawings. It should be noted that similar reference numerals and letters in the following drawings indicate similar items; therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0021] The terms “comprising,” “including,” or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase “comprising one…” does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0022] The terms “first,” “second,” etc., are used only to distinguish one entity or operation from another, and should not be construed as indicating or implying relative importance, nor as requiring or implying any such actual relationship or order between these entities or operations.

[0023] like Figure 1 As shown in the figure, this embodiment discloses a drone for surveying vegetation in the drawdown zone of a reservoir, including a main body 100, six connecting arms 200 connected to the main body, and propellers 300 located on the connecting arms. The main body 100 is equipped with a battery, a control system, etc.

[0024] like Figure 1 As shown, the main body 100 is connected to four support rods 400. The angle between each support rod 400 and the main body can be fixed. Each support rod 400 is inclined outward, and the ground support force (axial force of the support rod) on each support rod 400 is set to be the same. The length of each support rod 400 can be varied to change the length of the support rod according to the terrain of the reservoir drawdown area, so that the drone can be docked on different terrains, especially on some uneven ground.

[0025] like Figure 2 and Figure 3 As shown, the support rod 400 includes a first support rod 410 and a second support rod 430 movably connected to the first support rod. The first support rod 410 has a first movable channel 413, and the end of the second support rod 430 has a first piston 420. The first piston is located in the first movable channel 413 and can move within the first movable channel 413. When the first piston moves within the first movable channel 413, the second support rod 430 can move relative to the first support rod, thereby changing the length of the support rod. The air pressure in the first movable channel 413 within each first support rod 410 can be set to be basically the same. In a preferred embodiment, each first movable channel 413 is connected to a cavity 110 located within the main body. The cavity is connected to the outside through an air pipe 120, and a miniature air pump is provided on the air pipe to control the air pressure in the cavity 110. When using the drone, if it needs to land on uneven ground in the drawdown zone of a reservoir, the micro air pump can be started first. The second piston 420 of one or two support rods 400 will move within the first active channel 413, causing the second support rod 430 to move relative to the first support rod 410. The second support rod 430 will first contact the ground, and the ground will apply pressure to it. Due to the pressure applied by the ground, the second support rod 430 will stop moving relative to the first support rod 410. At this time, the other second support rods 430 that have not contacted the ground will continue to move relative to their corresponding first support rods 410 until all support rods contact the ground, thereby landing the drone on the uneven drawdown zone for accurate data collection in the next step.

[0026] In some cases, the support rod needs to extend sufficiently to stabilize the drone. The aforementioned solution limits the extension of the support rod. Therefore, in the improved solution, this invention uses a three-section support rod connection. In the improved solution, the second support rod 430 has a second movable channel 431, and a second piston 432 is located within the second movable channel. The second piston 432 is connected to a third support rod 433. The first piston 420 has an air supply channel 421, a spring cavity 422, a spring 423 located within the spring cavity, and a moving channel 424. A moving rod 425 is located within the moving channel 424, and a second magnet 426 is located at the end of the moving rod. An air passage 427 is also provided on the moving rod. The moving rod is connected to a spring. A first magnet 411 is provided on the inner wall of the first movable channel 413. When the first piston 420 moves to the position of the first magnet, the first magnet applies a force to the second magnet, causing the moving rod to move within the moving channel. This causes the air passage to be located within the air supply channel 421, opening the air supply channel 421 and allowing gas in the first movable channel to enter the second movable channel 431. When the first magnet stops applying a force to the second magnet, the air passage 427 leaves the air supply channel 427, thus closing the air supply channel. A blocking member 412 is provided at the end of the first movable channel 413 within the first support rod to prevent the first piston from continuing to move towards the end of the first movable channel 413. The connecting arm 200 is foldable and retractable.

[0027] When the first piston 420 of the second support rod 430 of the present invention moves to the end of the first active channel 413, the support rod is not extended long enough, and the third support rod 433 is located in the second active channel 431. At this time, the first piston 420 moves to a position near the first magnet 411, and the first magnet 411 applies a repulsive force to the second magnet 426, causing the moving rod 425 to move in the moving channel 424, compressing the spring, and the air passage 427 moves to the position of the air supply channel 421. The air in the first active channel enters the second active channel 431 through the air supply channel 421, driving the second piston 432 to move in the second active channel 431, thereby causing the third support rod to move further, causing the support rod to extend further until it contacts the ground, effectively supporting the drone. When the second piston continues to move, the air supply channel 421 closes until it is blocked by the blocking member 412.

[0028] In a preferred embodiment of the present invention, one side of the first piston is a first movable channel, and the other side is open to the atmosphere and connected to a second support rod 430 with a cross-section smaller than that of the first piston. One side of the second piston 432 is a second movable channel 431, and the other side is open to the atmosphere and has a third support rod with a cross-section smaller than that of the second piston. The cross-sections of the first piston, the second support rod 430, the second piston, and the third support rod are set to meet the needs of the present invention.

[0029] The above description is merely an embodiment of this application and is not intended to limit the scope of protection of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A drone for surveying vegetation in the drawdown zone of a reservoir, characterized in that, The device includes a main body (100), several connecting arms (200) connected to the main body, and propellers (300) located on the connecting arms. Several support rods (400) are connected to the main body (100). The angle between each support rod (400) and the main body can be fixed, and the length of each support rod (400) can be varied to change the length of the support rod according to the terrain of the reservoir drawdown zone, thus enabling the drone to be docked on different terrains. Each support rod (400) includes a first support rod (410) and a second support rod (430) movably connected to the first support rod. The first support rod (410) has a first movable channel (413) and a second support... The end of the rod (430) is provided with a first piston (420). The first piston is located in the first movable channel (413) and can move within the first movable channel (413). When the first piston moves within the first movable channel (413), the second support rod (430) can move relative to the first support rod, thereby changing the length of the support rod. The first movable channels (413) within each first support rod (410) are interconnected. The air pressure in the first movable channels (413) within each first support rod (410) is set to be basically the same. Each first movable channel (413) is connected to a cavity (110) located within the main body. The cavity is connected to the outside through an air pipe (120). A miniature air pump is provided on the tube to control the air pressure in the cavity (110). The second support rod (430) is provided with a second movable channel (431). The second movable channel is provided with a second piston (432). The second piston (432) is connected to a third support rod (433). The first piston (420) is provided with an air supply channel (421), a spring cavity (422), a spring (423) located in the spring cavity, and a moving channel (424). The moving channel (424) is provided with a moving rod (425). The end of the moving rod is provided with a second magnet (426). The moving rod is provided with an air passage (427). The moving rod is connected to the spring. The inner wall of the first movable channel (413) is provided with a third support rod (433). A magnet (411) is provided. When the first piston (420) moves to the position of the first magnet, the first magnet applies a force to the second magnet, causing the moving rod to move in the moving channel, thereby causing the air passage to be located in the air supply channel (421), opening the air supply channel (421), so that the gas in the first active channel can enter the second active channel (431). When the first magnet stops applying a force to the second magnet, the air passage (427) leaves the air supply channel (427) and then closes the air supply channel. The end of the first active channel (413) in the first support rod is provided with a blocking member (412) to prevent the first piston from continuing to move towards the end of the first active channel (413).

2. The UAV for vegetation survey in the drawdown zone of a reservoir according to claim 1, characterized in that, The connecting arm (200) is foldable and retractable.

3. The UAV for vegetation survey in the drawdown zone of a reservoir according to claim 1, characterized in that, The main body is connected to four support rods (400), each of which is inclined outward.

4. The UAV for vegetation survey in the drawdown zone of a reservoir according to claim 1, characterized in that, The main body (100) is connected to 6 connecting arms (200).

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