Unmanned aerial vehicle navigation obstacle avoidance system

Abstract

The utility model relates to the technical field of navigation and obstacle avoidance, in particular to an unmanned aerial vehicle navigation and obstacle avoidance system. The unmanned aerial vehicle navigation obstacle avoidance system provided by the utility model can detect obstacles in all directions to avoid the obstacles and improve the obstacle avoidance effect of the laser radar navigation obstacle avoidance system. An unmanned aerial vehicle navigation obstacle avoidance system comprises an unmanned aerial vehicle, power assemblies, supporting legs, a laser radar navigation obstacle avoidance system and the like, the left side and the right side of the unmanned aerial vehicle are rotationally connected with the front power assembly and the rear power assembly respectively, each power assembly is composed of a propeller and a motor, and the front side and the rear side of the unmanned aerial vehicle are connected with the supporting legs respectively. The right lower side of the unmanned aerial vehicle is slidably connected with the laser radar navigation obstacle avoidance system. According to the laser radar navigation obstacle avoidance system, the electric push rod on the supporting frame is started, the electric push rod operates to drive the sliding rod to slide, so that the laser radar navigation obstacle avoidance system moves rightwards and extends out, obstacles can be detected in all directions for avoidance, and the obstacle avoidance effect of the laser radar navigation obstacle avoidance system is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of navigation and obstacle avoidance, in particular to an unmanned aerial vehicle (UAV) navigation and obstacle avoidance system. Background Art

[0002] An unmanned aerial vehicle (UAV) is an unpiloted aircraft that is controlled by a radio remote control device and a self - contained program control device, or is completely or intermittently autonomously operated by an on - vehicle computer. Compared with a piloted aircraft, it has the advantages of small volume, low cost, convenient use, low requirements for the combat environment, and strong battlefield survivability.

[0003] In the existing UAV navigation and obstacle avoidance system, various sensors and algorithms are used to identify and avoid potential obstacles to ensure the safety and effectiveness of flight. Since the lidar navigation and obstacle avoidance system is fixedly installed on the UAV and cannot be moved and adjusted in position, some areas cannot be detected, which is rather inconvenient.

[0004] Therefore, it is necessary to design a UAV navigation and obstacle avoidance system that can detect obstacles in all directions for avoidance and improve the obstacle avoidance effect of the lidar navigation and obstacle avoidance system. Summary of the Utility Model

[0005] In order to overcome the defect that in the existing UAV navigation and obstacle avoidance system, the lidar navigation and obstacle avoidance system is fixedly installed on the UAV and cannot be moved and adjusted in position, resulting in some areas not being detected, the utility model provides a UAV navigation and obstacle avoidance system that can detect obstacles in all directions for avoidance and improve the obstacle avoidance effect of the lidar navigation and obstacle avoidance system.

[0006] The technical solution of the utility model is as follows: A UAV navigation and obstacle avoidance system includes a UAV, a power assembly, support feet, a lidar navigation and obstacle avoidance system, and a pushing mechanism. The front and rear of the two power assemblies are rotatably connected to both the left and right sides of the UAV. The lidar navigation and obstacle avoidance system is slidably connected to the lower side of the right part of the UAV. The UAV is provided with the pushing mechanism.

[0007] Preferably, the pushing mechanism includes a support frame, an electric push rod, and a sliding rod. The support frame is connected to the lower side of the UAV. The electric push rod is connected to the lower side of the support frame. The telescopic end of the electric push rod is connected to the lidar navigation and obstacle avoidance system. The sliding rod is connected to the upper side of the lidar navigation and obstacle avoidance system and is slidably connected to the UAV.

[0008] Preferably, a counterweight mechanism is further included. The counterweight mechanism includes a guide rod, a counterweight, a pulling rope, a fixed pulley, a connecting block and a spring. The front and rear parts of the lower side of the drone are both connected with the guide rod. The counterweights are slidably connected to the guide rods. The pulling rope is connected between the right sides of the counterweights. The fixed pulley is connected to the lower side of the left part of the electric push rod. The connecting block is connected to the lower side of the left part of the lidar navigation and obstacle avoidance system. The tail end of the pulling rope bypasses the fixed pulley and is connected to the connecting block. Springs are connected between the counterweights and the adjacent guide rods.

[0009] Preferably, the power assembly further includes a propeller and a motor.

[0010] Preferably, support feet are connected to both the front and rear sides of the drone.

[0011] Preferably, a limiting block is provided on the guide rod.

[0012] The beneficial effects of the present invention are as follows: 1. By starting the electric push rod on the support frame, the electric push rod operates to drive the sliding rod to slide, so that the lidar navigation and obstacle avoidance system moves to the right and extends, achieving the effect of being able to detect obstacles in all directions for avoidance and improving the obstacle avoidance effect of the lidar navigation and obstacle avoidance system.

[0013] 2. By the rotation of the fixed pulley, the pulling rope on the connecting block is driven to move to the right, so that the counterweight moves to the left on the guide rod, making the counterweight move away from the lidar navigation and obstacle avoidance system, achieving the effect of being able to keep the lidar navigation and obstacle avoidance system balanced when moving and preventing the drone from falling. Description of the Drawings

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the present invention.

[0015] Figure 2 It is a partial three-dimensional structural schematic diagram of the present invention.

[0016] Figure 3 It is a three-dimensional structural schematic diagram of the pushing mechanism of the present invention.

[0017] Figure 4 It is a three-dimensional structural schematic diagram of the counterweight mechanism of the present invention.

[0018] Figure 5 It is a three-dimensional structural schematic diagram of the counterweight of the present invention.

[0019] The labels in the figure are: 1 - drone, 2 - power component, 3 - support leg, 4 - lidar navigation and obstacle avoidance system, 5 - ejection mechanism, 51 - support frame, 52 - electric push rod, 53 - sliding rod, 6 - counterweight mechanism, 61 - guide rod, 62 - counterweight, 63 - pulling rope, 64 - fixed pulley, 65 - connecting block, 66 - spring. Specific implementation manner

[0020] The present utility model will be further described in detail below in conjunction with the accompanying drawings and specific implementation manners, but the protection scope and application scope of the present utility model are not limited.

[0021] A drone navigation and obstacle avoidance system, as Figure 1 and Figure 2 shown, includes a drone 1, a power component 2, support legs 3, a lidar navigation and obstacle avoidance system 4, and an ejection mechanism 5. Two front and rear power components 2 are rotatably connected to both left and right sides of the drone 1. The power component 2 is composed of a propeller and a motor. Support legs 3 are connected to both front and rear sides of the drone 1 for easy support. The lidar navigation and obstacle avoidance system 4 is slidably connected to the lower right side of the drone 1. An ejection mechanism 5 capable of pushing the lidar navigation and obstacle avoidance system 4 outwards is provided on the drone 1.

[0022] As Figure 1 and Figure 3 shown, the ejection mechanism 5 includes a support frame 51, an electric push rod 52, and a sliding rod 53. The support frame 51 is connected to the lower side of the drone 1. The electric push rod 52 is connected to the lower side of the support frame 51. The telescopic end of the electric push rod 52 is connected to the lidar navigation and obstacle avoidance system 4. The sliding rod 53 is connected to the upper side of the lidar navigation and obstacle avoidance system 4. The sliding rod 53 is slidably connected to the drone 1. Start the electric push rod 52 on the support frame 51. The electric push rod 52 operates to drive the sliding rod 53 to slide, so that the lidar navigation and obstacle avoidance system 4 moves to the right and extends out.

[0023] When using this device, first place the drone 1 in the shooting area. Drive the drone 1 to move upwards through the power component 2, and the support legs 3 are away from the ground. When the drone 1 needs to avoid obstacles, start the electric push rod 52 on the support frame 51. The electric push rod 52 operates to drive the sliding rod 53 to slide, so that the lidar navigation and obstacle avoidance system 4 moves to the right and extends out, so that the drone 1 does not interfere with the lidar navigation and obstacle avoidance system 4 for detection, thereby enabling all-round detection of obstacles for avoidance and improving the obstacle avoidance effect of the lidar navigation and obstacle avoidance system 4.

[0024] As Figure 1 、 Figure 4 andFigure 5 As shown in the figure, it further includes a counterweight mechanism 6. The counterweight mechanism 6 includes a guide rod 61, a counterweight 62, a pull rope 63, a fixed pulley 64, a connecting block 65 and a spring 66. The front and rear parts of the lower side of the drone 1 are both connected with the guide rod 61. Limit blocks are provided on the guide rod 61 for easy limitation. The counterweight 62 is slidably connected to the guide rod 61. The pull rope 63 is connected between the right sides of the counterweights 62. The lower left part of the electric push rod 52 is connected with the fixed pulley 64. The lower left part of the lidar navigation and obstacle avoidance system 4 is connected with the connecting block 65. The tail end of the pull rope 63 bypasses the fixed pulley 64 and is connected with the connecting block 65. A spring 66 is connected between the counterweight 62 and the adjacent guide rod 61. When the fixed pulley 64 rotates, it drives the pull rope 63 on the connecting block 65 to move to the right. The pull rope 63 between the counterweight 62 and the lidar navigation and obstacle avoidance system 4 is stretched, and the spring 66 is stretched, causing the counterweight 62 to move to the left on the guide rod 61.

[0025] When using the counterweight mechanism 6 of the present device, it can keep the lidar navigation and obstacle avoidance system 4 balanced when moving. When the lidar navigation and obstacle avoidance system 4 moves to the right, the fixed pulley 64 rotates, driving the pull rope 63 on the connecting block 65 to move to the right. The pull rope 63 between the counterweight 62 and the lidar navigation and obstacle avoidance system 4 is stretched, and the spring 66 is stretched, causing the counterweight 62 to move to the left on the guide rod 61, so that the counterweight 62 and the lidar navigation and obstacle avoidance system 4 move away from each other, thereby being able to keep the lidar navigation and obstacle avoidance system 4 balanced when moving and preventing the drone 1 from falling.

[0026] The above has described in detail the embodiments of the present utility model in conjunction with the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the gist of the present utility model.

Claims

1. A UAV navigation and obstacle avoidance system, characterized in that: The invention comprises an unmanned aerial vehicle (1), a power assembly (2), a supporting foot (3), a laser radar navigation obstacle avoidance system (4) and a pushing mechanism (5); the unmanned aerial vehicle (1) is rotatably connected to two front and rear power assemblies (2) on both left and right sides; the unmanned aerial vehicle (1) is slidably connected to the laser radar navigation obstacle avoidance system (4) on the lower right side; and the unmanned aerial vehicle (1) is provided with the pushing mechanism (5) capable of pushing the laser radar navigation obstacle avoidance system (4) outward.

2. The unmanned aerial vehicle navigation and obstacle avoidance system according to claim 1, characterized in that: The ejection mechanism (5) comprises a support frame (51), an electric push rod (52) and a slide bar (53); the support frame (51) is connected to the lower side of the UAV (1); the electric push rod (52) is connected to the lower side of the support frame (51); the telescopic end of the electric push rod (52) is connected to the laser radar navigation obstacle avoidance system (4); the slide bar (53) is connected to the upper side of the laser radar navigation obstacle avoidance system (4); the slide bar (53) is connected to the UAV (1) in a sliding manner; when the electric push rod (52) on the support frame (51) is started, the electric push rod (52) operates, driving the slide bar (53) to slide, so that the laser radar navigation obstacle avoidance system (4) moves to the right and extends out.

3. The unmanned aerial vehicle navigation and obstacle avoidance system according to claim 2, characterized in that: The invention also comprises a counterweight mechanism (6), wherein the counterweight mechanism (6) comprises a guide rod (61), a counterweight device (62), a pull rope (63), a fixed pulley (64), a connecting block (65) and a spring (66); the front and rear parts of the lower side of the drone (1) are both connected to the guide rod (61); the counterweight device (62) is slidably connected to the guide rod (61); the right side of the counterweight device (62) is connected to the pull rope (63); the lower left side of the electric push rod (52) is connected to the fixed pulley (64); the lower left side of the laser radar navigation obstacle avoidance system (4) is connected to The connecting block (65) is connected to the connecting block (65), the tail end of the pull rope (63) passes around the fixed pulley (64) and is connected to the connecting block (65), the spring (66) is connected between the counterweight (62) and the adjacent guide rod (61), the fixed pulley (64) rotates, driving the pull rope (63) on the connecting block (65) to move rightward, the pull rope (63) between the counterweight (62) and the laser radar navigation obstacle avoidance system (4) is stretched, and the spring (66) is stretched, causing the counterweight (62) to move leftward on the guide rod (61).

4. The unmanned aerial vehicle navigation and obstacle avoidance system according to claim 1, characterized in that: The power assembly (2) consists of a propeller and a motor.

5. The unmanned aerial vehicle navigation and obstacle avoidance system according to claim 1, characterized in that: The supporting feet (3) are connected to both the front and rear sides of the drone (1).

6. The unmanned aerial vehicle navigation and obstacle avoidance system according to claim 3, characterized in that: The guide rod (61) is provided with a limit block.

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