Magnetic compass calibration device for unmanned aerial vehicle

Abstract

The utility model relates to the technical field of unmanned aerial vehicles, in particular to an unmanned aerial vehicle magnetic compass calibration device which comprises a horizontal disc, a tripod arranged at the lower end of the horizontal disc, a fixed seat fixedly mounted at the upper end of the horizontal disc, a bubble level fixedly mounted on the side of the upper end of the horizontal disc, and a driving motor arranged on the right side of the fixed seat. A first bevel gear is arranged on the inner side of the fixing base, a second bevel gear is arranged on the side of the first bevel gear, a rotating base is arranged at the upper end of the fixing base, a rotary knob is arranged on the front side of the rotating base, a third bevel gear is arranged on the inner side of the rotating base, a bidirectional lead screw is arranged on the side of the third bevel gear, and supporting frames are fixedly installed on the left side and the right side of the rotating base. The clamping frame is controlled to be clamped with the unmanned aerial vehicle support by rotating the rotary knob, the unmanned aerial vehicle support is clamped and fixed by the clamping block by rotating the lead screw, stable installation of the unmanned aerial vehicle is achieved, the rotating seat and the unmanned aerial vehicle are driven to rotate by controlling the driving motor to work, and calibration of the magnetic compass of the unmanned aerial vehicle is assisted.

Description

TECHNICAL FIELD

[0001] The utility model relates to unmanned plane technical field especially relates to unmanned plane magnetic compass calibration device. BACKGROUND

[0002] ‌The core role of unmanned plane magnetic compass is to provide direction perception and heading measurement, determines the angle of unmanned plane and magnetic north pole through geomagnetic field, provides key data for navigation and attitude control, the precision of magnetic compass is susceptible to environmental magnetic field interference, needs to be calibrated regularly, ensures that the magnetic compass of unmanned plane points accurately, eliminates geographical error and interference that can be produced in the transportation process;

[0003] At present, the core step of unmanned plane magnetic compass calibration is to complete magnetic field data acquisition through multi-axis rotation, and to ensure that the calibration environment has no electromagnetic interference, most need to activate the magnetic compass calibration mode through the remote controller, at this time, the unmanned plane is placed horizontally, rotates at least one week around the axis perpendicular to the ground, cooperates with the change of calibration mode indicator light, judges whether the magnetic compass function and state are perfect.

[0004] But the existing unmanned plane magnetic compass mostly adopts manual lifting and rotating detection in the calibration process, which is time-consuming and labor-consuming, low in efficiency, and prone to errors, resulting in inaccurate calibration, and even causing damage to the unmanned plane. UTILITY MODEL CONTENTS

[0005] In order to overcome the problem that the unmanned plane magnetic compass mostly adopts manual lifting and rotating detection in the calibration process, which is time-consuming and labor-consuming, low in efficiency, and prone to errors, resulting in inaccurate calibration, and even causing damage to the unmanned plane.

[0006] The technical scheme of the utility model is: the unmanned plane magnetic compass calibration device, including horizontal disc, the lower end of horizontal disc is provided with tripod, the upper end of horizontal disc is fixedly installed with fixed seat, the side of horizontal disc upper end is fixedly installed with bubble level, the right side of fixed seat is provided with driving motor, the inner side of fixed seat is provided with bevel gear one, the side of bevel gear one is provided with bevel gear two, the upper end of fixed seat is provided with rotating seat, the front side of rotating seat is provided with knob, the inner side of rotating seat is provided with bevel gear three, the side of bevel gear three is provided with two-way screw rod, the left and right sides of rotating seat are fixedly installed with support frame, the upper end of support frame is provided with moving plate, the end of moving plate is provided with clamping frame, the side of clamping frame is provided with clamping block, the upper end of clamping block is provided with screw rod.

[0007] Preferably, by setting the tripod and bubble level, it is convenient to support and level the horizontal disc, by setting the bidirectional screw rod, support frame and moving plate, it is convenient to cooperate with the unmanned aerial vehicle support to centrally place the unmanned aerial vehicle, by setting the clamping block and screw rod, it is convenient to clamp and fix the unmanned aerial vehicle support, realize stable support of the unmanned aerial vehicle, by setting the rotating seat, it is convenient to control the unmanned aerial vehicle to rotate for magnetic compass calibration.

[0008] Preferably, the driving motor and the fixed seat are fixedly connected, the output end of the driving motor extends to the inner side of the fixed seat and is fixedly connected with the bevel gear one, the bevel gear two and the bevel gear one are engaged with each other.

[0009] Preferably, the bevel gear two and the inner side of the fixed seat are rotatably connected through the rotating shaft, the upper end of the rotating shaft extends to the outer side of the fixed seat and is fixedly connected with the rotating seat.

[0010] Preferably, the knob and the surface of the rotating seat are rotatably connected, the rear end of the knob extends to the inner side of the rotating seat and is fixedly connected with the bevel gear three, the outer side of the bidirectional screw rod is fixedly installed with the bevel gear four, the bevel gear four and the bevel gear three are engaged with each other.

[0011] Preferably, the two ends of the bidirectional screw rod extend to the outer side of the rotating seat and the inner side of the support frame and are rotatably connected, the moving plate and the inner side of the support frame are slidably connected, and the bidirectional screw rod and the moving plate are threadedly connected.

[0012] Preferably, the clamping frame is designed in an L-shaped structure, the lower end of the clamping frame is fixedly connected with the moving plate, and one side of the clamping block is slidably connected with the surface of the clamping frame.

[0013] Preferably, the lower end of the screw rod is rotatably connected with the clamping block, the upper end of the screw rod extends to the upper end of the clamping frame and is fixedly installed with the adjusting knob, and the screw rod and the clamping frame are threadedly connected.

[0014] The utility model discloses a beneficial effect:

[0015] The unmanned aerial vehicle magnetic compass calibration device, through the observation bubble leveler, and adjusting the tripod, realize the support and the leveling of the horizontal disc, place the unmanned aerial vehicle on the support frame, rotate the knob to control the bidirectional screw rod to rotate, make the moving plate drive the clamping frame and the unmanned aerial vehicle support to engage, realize the central positioning of the unmanned aerial vehicle, rotate the screw rod to make the clamping block descend, clamp and fix the unmanned aerial vehicle support, realize the stable installation of the unmanned aerial vehicle, control the driving motor work to drive the rotating seat and the unmanned aerial vehicle to rotate, assist the unmanned aerial vehicle magnetic compass calibration to carry out, improved the unmanned aerial vehicle magnetic compass calibration efficiency and accuracy, reduced the security risk of manual operation. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The utility model discloses a beneficial effect: Figure One ;

[0017] Figure 2 The utility model discloses a three -dimensional structure schematic diagram of unmanned plane magnetic compass calibration device is shown Figure Two ;

[0018] Figure 3 The utility model discloses a three -dimensional structure schematic diagram of mobile plate is shown

[0019] Figure 4 The utility model discloses a three -dimensional structure schematic diagram of fixed seat, rotating seat section is shown Figure One ;

[0020] Figure 5 The utility model discloses a three -dimensional structure schematic diagram of fixed seat, rotating seat section is shown Figure Two .

[0021] Mark explanation: 1, horizontal disc; 2, tripod; 3, fixed seat; 4, bubble level; 5, drive motor; 6, bevel gear one; 7, bevel gear two; 71, pivot; 8, rotating seat; 9, knob; 10, bevel gear three; 11, two -way screw; 111, bevel gear four; 12, support frame; 13, mobile plate; 14, clamping frame; 15, clamping block; 16, screw rod; 161, adjusting knob. DETAILED DESCRIPTION

[0022] The utility model will be further explained below in connection with the drawings and examples.

[0023] Please refer to Figures 1-5The utility model provides a kind of embodiment: unmanned plane magnetic compass calibration device, including horizontal disc 1, the lower end of horizontal disc 1 is provided with tripod 2, the upper end of horizontal disc 1 is fixedly installed with fixed seat 3, the side of the upper end of horizontal disc 1 is fixedly installed with bubble level 4, the right side of fixed seat 3 is provided with driving motor 5, the inside of fixed seat 3 is provided with bevel gear one 6, the side of bevel gear one 6 is provided with bevel gear two 7, the upper end of fixed seat 3 is provided with rotating seat 8, the front side of rotating seat 8 is provided with knob 9, the inside of rotating seat 8 is provided with bevel gear three 10, the side of bevel gear three 10 is provided with bidirectional screw rod 11, the left and right sides of rotating seat 8 are fixedly installed with support frame 12, the upper end of support frame 12 is provided with moving plate 13, the end of moving plate 13 is provided with clamping frame 14, the side of clamping frame 14 is provided with clamping block 15, the upper end of clamping block 15 is provided with screw rod 16, by observing bubble level 4, and adjusting tripod 2, the support and leveling of horizontal disc 1 are realized, unmanned plane is placed on support frame 12, by rotating knob 9 control bidirectional screw rod 11 rotation, make moving plate 13 drive clamping frame 14 and unmanned plane support and engage, realize the center positioning of unmanned plane, by rotating screw rod 16 makes clamping block 15 descend, unmanned plane support is clamped and fixed, realize the stable installation of unmanned plane, by controlling driving motor 5 work drive rotating seat 8 and unmanned plane rotation, the calibration of unmanned plane magnetic compass is assisted.

[0024] Please refer to Figures 1-4 In the embodiment, driving motor 5 and fixed seat 3 are fixedly connected, the output end of driving motor 5 extends to the inside of fixed seat 3 and bevel gear one 6 fixedly connected, bevel gear two 7 and bevel gear one 6 are engaged with each other, bevel gear two 7 and the inside of fixed seat 3 are rotatably connected through rotating shaft 71, the upper end of rotating shaft 71 extends to the outside of fixed seat 3 and rotating seat 8 fixedly connected, by observing bubble level 4, and adjusting tripod 2, the support and leveling of horizontal disc 1 are realized, unmanned plane is fixed on the upper end of rotating seat 8, by controlling driving motor 5 work drive bevel gear one 6 rotation, make bevel gear two 7 drive rotating seat 8 and unmanned plane rotation, the calibration of unmanned plane magnetic compass is assisted.

[0025] Please refer to Figures 2-5In the embodiment, the knob 9 and the surface of the rotating seat 8 are rotationally connected, the rear end of the knob 9 extends to the inner side of the rotating seat 8 and is fixedly connected with the bevel gear three 10, the outer side of the bidirectional lead screw 11 is fixedly installed with the bevel gear four 111, the bevel gear four 111 and the bevel gear three 10 are meshed with each other, the two ends of the bidirectional lead screw 11 extend to the outer side of the rotating seat 8 and the inner side of the supporting frame 12 and are rotationally connected, the inner side of the supporting frame 12 is slidably connected with the moving plate 13, the bidirectional lead screw 11 and the moving plate 13 are threadedly connected, the clamping frame 14 is designed in an L-shaped structure, the lower end of the clamping frame 14 is fixedly connected with the moving plate 13, one side of the clamping block 15 is slidably connected with the surface of the clamping frame 14, the lower end of the lead screw 16 is rotationally connected with the clamping block 15, the upper end of the lead screw 16 extends to the upper end of the clamping frame 14 and is fixedly installed with the adjusting knob 161, the lead screw 16 and the clamping frame 14 are threadedly connected, the bevel gear three 10 and the bevel gear four 111 are driven to rotate by rotating the knob 9, the bidirectional lead screw 11 is controlled to rotate, the two moving plates 13 drive the clamping frame 14 to move towards the unmanned aerial vehicle support until the clamping frame 14 is clamped with the unmanned aerial vehicle support, the unmanned aerial vehicle is centrally positioned, the lead screw 16 is driven to rotate by rotating the adjusting knob 161, the clamping block 15 is lowered to clamp and fix the unmanned aerial vehicle support, and the unmanned aerial vehicle is stably installed.

[0026] In the embodiment, the knob 9 and the surface of the rotating seat 8 are rotationally connected, the rear end of the knob 9 extends to the inner side of the rotating seat 8 and is fixedly connected with the bevel gear three 10, the outer side of the bidirectional lead screw 11 is fixedly installed with the bevel gear four 111, the bevel gear four 111 and the bevel gear three 10 are meshed with each other, the two ends of the bidirectional lead screw 11 extend to the outer side of the rotating seat 8 and the inner side of the supporting frame 12 and are rotationally connected, the inner side of the supporting frame 12 is slidably connected with the moving plate 13, the bidirectional lead screw 11 and the moving plate 13 are threadedly connected, the clamping frame 14 is designed in an L-shaped structure, the lower end of the clamping frame 14 is fixedly connected with the moving plate 13, one side of the clamping block 15 is slidably connected with the surface of the clamping frame 14, the lower end of the lead screw 16 is rotationally connected with the clamping block 15, the upper end of the lead screw 16 extends to the upper end of the clamping frame 14 and is fixedly installed with the adjusting knob 161, the lead screw 16 and the clamping frame 14 are threadedly connected, the bevel gear three 10 and the bevel gear four 111 are driven to rotate by rotating the knob 9, the bidirectional lead screw 11 is controlled to rotate, the two moving plates 13 drive the clamping frame 14 to move towards the unmanned aerial vehicle support until the clamping frame 14 is clamped with the unmanned aerial vehicle support, the unmanned aerial vehicle is centrally positioned, the lead screw 16 is driven to rotate by rotating the adjusting knob 161, the clamping block 15 is lowered to clamp and fix the unmanned aerial vehicle support, and the unmanned aerial vehicle is stably installed.

[0027] In the embodiment, the knob 9 and the surface of the rotating seat 8 are rotationally connected, the rear end of the knob 9 extends to the inner side of the rotating seat 8 and is fixedly connected with the bevel gear three 10, the outer side of the bidirectional lead screw 11 is fixedly installed with the bevel gear four 111, the bevel gear four 111 and the bevel gear three 10 are meshed with each other, the two ends of the bidirectional lead screw 11 extend to the outer side of the rotating seat 8 and the inner side of the supporting frame 12 and are rotationally connected, the inner side of the supporting frame 12 is slidably connected with the moving plate 13, the bidirectional lead screw 11 and the moving plate 13 are threadedly connected, the clamping frame 14 is designed in an L-shaped structure, the lower end of the clamping frame 14 is fixedly connected with the moving plate 13, one side of the clamping block 15 is slidably connected with the surface of the clamping frame 14, the lower end of the lead screw 16 is rotationally connected with the clamping block 15, the upper end of the lead screw 16 extends to the upper end of the clamping frame 14 and is fixedly installed with the adjusting knob 161, the lead screw 16 and the clamping frame 14 are threadedly connected, the bevel gear three 10 and the bevel gear four 111 are driven to rotate by rotating the knob 9, the bidirectional lead screw 11 is controlled to rotate, the two moving plates 13 drive the clamping frame 14 to move towards the unmanned aerial vehicle support until the clamping frame 14 is clamped with the unmanned aerial vehicle support, the unmanned aerial vehicle is centrally positioned, the lead screw 16 is driven to rotate by rotating the adjusting knob 161, the clamping block 15 is lowered to clamp and fix the unmanned aerial vehicle support, and the unmanned aerial vehicle is stably installed.

Claims

1. A device for calibrating a magnetic compass of an unmanned aerial vehicle, comprising a horizontal disc (1), characterized in that: The lower end of the horizontal disc (1) is provided with a tripod (2), the upper end of the horizontal disc (1) is fixedly installed with a fixed seat (3), the side of the upper end of the horizontal disc (1) is fixedly installed with a bubble level (4), the right side of the fixed seat (3) is provided with a driving motor (5), the inner side of the fixed seat (3) is provided with a bevel gear one (6), the side of the bevel gear one (6) is provided with a bevel gear two (7), the upper end of the fixed seat (3) is provided with a rotating seat (8), the front side of the rotating seat (8) is provided with a knob (9), the inner side of the rotating seat (8) is provided with a bevel gear three (10), the side of the bevel gear three (10) is provided with a bidirectional lead screw (11), the left and right sides of the rotating seat (8) are fixedly installed with a support frame (12), the upper end of the support frame (12) is provided with a moving plate (13), the end of the moving plate (13) is provided with a clamping frame (14), the side of the clamping frame (14) is provided with a clamping block (15), and the upper end of the clamping block (15) is provided with a lead screw (16).

2. The unmanned aerial vehicle magnetic compass calibration apparatus of claim 1, wherein: The driving motor (5) and the fixed seat (3) are fixedly connected, the output end of the driving motor (5) extends to the inner side of the fixed seat (3) and is fixedly connected with the bevel gear one (6), and the bevel gear two (7) and the bevel gear one (6) are meshed with each other.

3. The unmanned aerial vehicle magnetic compass calibration device of claim 1, wherein: The bevel gear two (7) and the inner side of the fixed seat (3) are rotatably connected through an axis (71), the upper end of the axis (71) extends to the outer side of the fixed seat (3) and is fixedly connected with the rotating seat (8).

4. The unmanned aerial vehicle magnetic compass calibration apparatus of claim 1, wherein: The knob (9) and the surface of the rotating seat (8) are rotatably connected, the rear end of the knob (9) extends to the inner side of the rotating seat (8) and is fixedly connected with the bevel gear three (10), and the outer side of the bidirectional lead screw (11) is fixedly installed with a bevel gear four (111), and the bevel gear four (111) and the bevel gear three (10) are meshed with each other.

5. The unmanned aerial vehicle magnetic compass calibration apparatus of claim 1, wherein: Both ends of the bidirectional lead screw (11) extend to the outer side of the rotating seat (8) and are rotatably connected with the inner side of the support frame (12), the moving plate (13) and the inner side of the support frame (12) are slidably connected, and the bidirectional lead screw (11) and the moving plate (13) are threadedly connected.

6. The UAV magnetometer calibration apparatus of claim 1, wherein: The clamping frame (14) is designed in an L-shaped structure, the lower end of the clamping frame (14) is fixedly connected with the moving plate (13), and the side of the clamping block (15) is slidably connected with the surface of the clamping frame (14).

7. The unmanned aerial vehicle magnetic compass calibration apparatus of claim 1, wherein: The lower end of the lead screw (16) is rotatably connected with the clamping block (15), the upper end of the lead screw (16) extends to the upper end of the clamping frame (14) and is fixedly installed with an adjusting knob (161), and the lead screw (16) and the clamping frame (14) are threadedly connected.

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