Aerial survey unmanned aerial vehicle

By integrating radar cleaning mechanisms on aerial survey drone, gears and motor-driven mechanical devices automatically clean up the dirt at the lidar detection port, the signal error problem caused by dirt from aerial survey drone is solved, and the working efficiency of the radar is improved and the endurance of the drone.

CN222361094UActive Publication Date: 2025-01-17SHENTING (FUJIAN) ENGINEERING TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202421331989.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-12
Publication Date
2025-01-17
Estimated Expiration
2034-06-12

AI Technical Summary

Technical Problem

When aerial survey drones are mapping maps and terrain mapping, the laser beam is scattered or absorbed due to dirt on the surface of the detection port (such as dust, dirt or water droplets), causing the radar to be unable to accurately receive reflected signals, resulting in the characteristic location and shape of the ground. and elevation information errors increase maintenance costs and time.

Method used

A aviation survey drone was designed, equipped with a radar cleaning mechanism, which includes grooves, motors, gears, electric telescopic rods and sponges. Through mechanical devices driven by gears and motors, it can automatically telescopic sponges and lidar detection ports. , clean up dirt and ensure the accuracy of radar signals.

Benefits of technology

It realizes timely cleaning of lidar, maintains its optimal working condition, reduces maintenance costs and time, extends the working time of drones, and avoids power consumption and equipment damage caused by manual cleaning.

✦ Generated by Eureka AI based on patent content.

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    Figure CN222361094U_ABST
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Abstract

The utility model belongs to the technical field of aviation, and particularly relates to an aerial survey unmanned aerial vehicle which comprises an unmanned aerial vehicle body, a radar cleaning mechanism is arranged at the bottom of the unmanned aerial vehicle body, and a laser radar is arranged at the bottom of the unmanned aerial vehicle body. When a laser radar detection port formed in the cruise unmanned aerial vehicle body is dirty, the device can simply clean the detection port of the laser radar, and compared with the unmanned aerial vehicle which returns, is manually cleaned and then works again, the cleaning is more efficient, and the cleaning efficiency is improved. The efficient cleaning mode can ensure that the performance of the laser radar is recovered in time, so that the optimal working state of the laser radar is kept, meanwhile, the cleaning mode saves the power consumption of the unmanned aerial vehicle for returning, manual cleaning and reworking, so that the working time of the unmanned aerial vehicle is longer, and the working efficiency is improved. Mechanical automatic cleaning equipment is usually provided with an accurate sensor and a control system, so that dirt on the surface of the laser radar can be accurately positioned and cleaned, and unnecessary damage to the equipment is avoided.
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Description

Technical Field

[0001] The utility model relates to the field of aviation technology, in particular to an aerial survey unmanned aerial vehicle. Background Art

[0002] Drones have been widely used in many fields due to their flexibility, high efficiency and speed. In particular, drones have become an important tool in aerial photogrammetry. Aerial survey drones equipped with laser radar can measure the position, shape and distance of target objects with extremely high accuracy. After the laser beam is emitted, it can accurately calculate the time of its return, thereby determining the distance of the target object, and the error can be controlled between a few millimeters and a few centimeters. This high-precision measurement capability enables drones to provide detailed and accurate geographic data, meeting the demand for accurate data in fields such as map making and topographic surveying.

[0003] At present, when aerial survey UAVs are performing operations such as map making and terrain surveying, the detection port may be dirty due to dust, dirt or water droplets on the surface. These substances may scatter or absorb the laser beam. This will cause the radar to be unable to accurately receive the reflected signal, resulting in errors in the location, shape and elevation of the terrain features. In order to ensure performance, the detection port needs to be cleaned regularly, which will increase the maintenance cost and time of the UAV. Utility Model Content

[0004] In order to make up for the shortcomings of the prior art and the problem of dirt on the surface of the detection port, the utility model proposes an aerial survey drone.

[0005] The technical solution adopted by the utility model to solve the technical problem is: an aerial survey UAV, comprising a UAV body, a radar cleaning mechanism is arranged at the bottom of the UAV body, and a laser radar is arranged at the bottom of the UAV body;

[0006] The radar cleaning mechanism includes a groove, which is opened at the bottom of the drone body, and a first motor is fixedly installed on the inner wall of the groove, and a first gear is fixedly installed on the output end of the first motor. The bottom of the drone body is rotatably connected to a second gear through a bearing, and the teeth of the second gear and the first gear are meshed with each other. A first electric telescopic rod is fixedly installed on the surface of the second gear, and a connector protection box is fixedly installed on the telescopic end of the first electric telescopic rod, and a second electric telescopic rod is rotatably connected to the inner wall of the connector protection box, and a fixed block is fixedly installed on the telescopic end of the second electric telescopic rod, and a foam clip is fixedly installed on the surface of the fixed block, and a sponge is fixedly installed on the inner side of the foam clip, and the top of the sponge contacts with the bottom of the laser radar, and a straight rod is fixedly installed on the top of the laser radar, and the top of the straight rod is fixedly connected to the bottom of the drone body.

[0007] Preferably, a second motor is fixedly mounted on the inner wall of the connector protection box, a third gear is fixedly connected to the output end of the second motor, a gear shaft is fixedly mounted on the telescopic end of the second electric telescopic rod, a gear groove is provided on the surface of the gear shaft, teeth of the third gear and the gear groove are meshed with each other, and the top of the connector protection box is fixedly connected to the surface of the gear shaft.

[0008] Preferably, a limiting groove is provided on the inner wall of the connector protection box, a limiting block is fixedly mounted on the surface of the gear shaft, and the surface of the limiting block is slidably connected to the inner cavity of the limiting groove.

[0009] Preferably, a fixing plate is fixedly installed on the surface of the straight rod, the number of the fixing plates is four, the inner wall of the fixing plate is threadedly connected with a first screw, and the surface of the first screw is threadedly connected to the inner wall of the drone body.

[0010] Preferably, a rod bracket is fixedly mounted on the surface of the drone body, the number of the rod brackets is four, a propeller is arranged on the top of the rod bracket, a second screw is threadedly connected to the inner wall of the rod bracket, and the surface of the second screw is threadedly connected to the inner wall of the propeller.

[0011] Preferably, a fixed disc is provided at the bottom of the second gear, and a surface of the fixed disc is fixedly mounted on the bottom of the drone body.

[0012] Preferably, the first electric telescopic rod and the second electric telescopic rod are both made of aluminum alloy.

[0013] The utility model is beneficial in that:

[0014] The utility model has a radar cleaning mechanism disposed on the cruise UAV body. When the laser radar detection port becomes dirty, the rotation of the second gear can drive the sponge located at the radar detection port to clean it, thereby ensuring that the performance of the laser radar is restored in time, thereby maintaining its optimal working state. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2This is a schematic diagram of the structure of the radar cleaning mechanism of the utility model;

[0018] Figure 3 This is an exploded view of the internal structure of the connector protection box of the utility model;

[0019] Figure 4 This is an exploded view of the second gear and fixed disc structure of the utility model;

[0020] Figure 5 This is an exploded view of the rotating structure of the first gear and the second gear of the utility model;

[0021] Figure 6 It is a structural schematic diagram of the connector protection box, the second motor, the third gear and the limiting groove of the utility model.

[0022] In the figure: 1. UAV body; 2. Radar cleaning mechanism; 201. Sponge; 202. Foam clip; 203. Fixed block; 204. Second electric telescopic rod; 205. Connector protection box; 206. First electric telescopic rod; 207. Second gear; 208. First gear; 209. Groove; 210. First motor; 3. First screw; 4. LiDAR; 5. Straight rod; 6. Fixed plate; 7. Fixed disc; 8. Second motor; 9. Third gear; 10. Gear shaft; 11. Rod holder; 12. Propeller; 13. Gear slot; 14. Limit block; 15. Limit slot; 16. Second screw. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0024] The following is combined with Figure 1-6 To further explain this application in detail,

[0025] The present application embodiment discloses an aerial survey drone. Figure 1 and Figure 5 , an aerial survey drone, comprising a drone body 1, a radar cleaning mechanism 2 is arranged at the bottom of the drone body 1, and a laser radar 4 is arranged at the bottom of the drone body 1;

[0026] The radar cleaning mechanism 2 includes a groove 209, which is provided at the bottom of the drone body 1. A first motor 210 is fixedly installed on the inner wall of the groove 209. A first gear 208 is fixedly installed at the output end of the first motor 210. A second gear 207 is rotatably connected to the bottom of the drone body 1 through a bearing. The teeth of the second gear 207 and the first gear 208 are meshed with each other. A first electric telescopic rod 206 is fixedly installed on the surface of the second gear 207. The telescopic end of the first electric telescopic rod 206 is fixedly installed. A connector protection box 205 is fixedly installed, and the inner wall of the connector protection box 205 is rotatably connected to a second electric telescopic rod 204, and a fixed block 203 is fixedly installed on the telescopic end of the second electric telescopic rod 204, and a foam clip 202 is fixedly installed on the surface of the fixed block 203, and a sponge 201 is fixedly installed on the inner side of the foam clip 202, and the top of the sponge 201 is in contact with the bottom of the laser radar 4, and a straight rod 5 is fixedly installed on the top of the laser radar 4, and the top of the straight rod 5 is fixedly connected to the bottom of the drone body 1.

[0027] Reference Figure 1 and Figure 6 The inner wall of the connector protection box 205 is fixedly mounted with a second motor 8, the output end of the second motor 8 is fixedly connected with a third gear 9, the telescopic end of the second electric telescopic rod 204 is fixedly mounted with a gear shaft 10, the surface of the gear shaft 10 is provided with a gear groove 13, the teeth of the third gear 9 and the gear groove 13 are meshed with each other, the top of the connector protection box 205 is fixedly connected to the surface of the gear shaft 10, the third gear 9 is driven to rotate by the second motor 8, and the third gear 9 drives the gear shaft 10 to rotate by meshing with the gear groove 13, so that the device can be better folded when not in use, so that the wind resistance of the drone is reduced, and the endurance loss of the drone can be reduced;

[0028] Reference Figure 1 and Figure 6 The inner wall of the connector protection box 205 is provided with a limiting groove 15, and a limiting block 14 is fixedly installed on the surface of the gear shaft 10. The surface of the limiting block 14 is slidably connected with the limiting groove 15. When the gear shaft 10 rotates, the limiting block 14 is driven to rotate. The limiting block 14 rotates on the inner wall of the limiting groove 15 to one end of the limiting groove 15 to limit the rotation of the gear shaft 10 so that the device can be rotated to a specified position more accurately. When the second motor 8 rotates, it drives the gear shaft 10 and the limiting block 14 to reach the other end of the limiting groove 15 to rotate the gear shaft 10 to the initial position.

[0029] Reference Figure 1 and Figure 6A fixing plate 6 is fixedly installed on the surface of the straight rod 5, and the number of the fixing plates 6 is four. The inner wall of the fixing plate 6 is threadedly connected with a first screw 3. The surface of the first screw 3 is threadedly connected to the inner wall of the drone body 1. By tightening the first screw 3, the fixing plate 6 can be installed more firmly, and the laser radar 4 above the fixing plate 6 can be easily replaced by removing the screw;

[0030] Reference Figure 1 and Figure 6 A rod frame 11 is fixedly mounted on the surface of the drone body 1. There are four rod frames 11. A propeller 12 is arranged on the top of the rod frame 11. A second screw 16 is threadedly connected to the inner wall of the rod frame 11. The surface of the second screw 16 is threadedly connected to the inner wall of the propeller 12. The propeller 12 is more firmly installed by tightening the screw, and the propeller 12 can be easily replaced by removing the screw.

[0031] Reference Figure 1 and Figure 6 A fixed disc 7 is provided at the bottom of the second gear 207, and the surface of the fixed disc 7 is fixedly mounted on the bottom of the drone body 1. The fixed disc 7 is fitted with the bottom of the second gear 207 to fix the position of the second gear 207 to prevent the second gear 207 from falling off;

[0032] Reference Figure 1 and Figure 6 The first electric telescopic rod 206 and the second electric telescopic rod 204 are both made of aluminum alloy, which is one of the most commonly used materials for making telescopic rods. It is lightweight, durable, and not easy to rust. These characteristics make the telescopic rod easier to process and operate;

[0033] Working principle: Before use, install the straight rod 5 on the surface of the laser radar 4, install the fixing plate 6 under the straight rod 5, and install it at the bottom of the drone body 1 through the first screw 3. The propeller 12 can be replaced through the second screw 16 on the rod frame 11. During use, if the staff finds that there is dirt on the surface of the laser radar 4, such as dust, dirt or water droplets, the radar cleaning mechanism 2 is turned on. At this time, the first electric telescopic rod 206 drives the connecting part protection box 205 to extend to the specified position through telescopic movement. At this time, the second motor 8 in the connecting part protection box 205 drives the third gear 9 at the output end of the second motor 8 to start rotating, and the third gear 9 drives the gear groove 1 at the position through the meshing of the teeth. 3, the gear shaft 10 of the drone body 1 is rotated, and the second electric telescopic rod 204 located on the surface of the gear shaft 10 is rotated to a specified position through the limit block 14 on the surface of the gear shaft 10 and the limit groove 15 on the connector protection box 205. At this time, the second electric telescopic rod 204 drives the fixed block 203 located at the telescopic end of the telescopic rod to be telescoped to a specified position. The surface of the fixed block 203 is equipped with a foam clip 202, and the sponge 201 on the foam clip 202 is telescoped to fit the detection port of the laser radar 4. At this time, the first motor 210 located in the groove 209 at the bottom of the drone body 1 starts to work, driving the first gear 208 located at the output end of the first motor 210 to rotate, and the first gear 208 is connected to the first motor 210. The meshing of the teeth drives the second gear 207 to rotate. In order to prevent the second gear 207 from falling, a fixed disc 7 is installed at one end of the second gear 207. The second gear 207 drives the first electric telescopic rod 206 located on the surface of the second gear 207 to rotate, the first electric telescopic rod 206 drives the connecting piece protection box 205 to rotate, the connecting piece protection box 205 drives the gear shaft 10 to rotate, the gear shaft 10 drives the second electric telescopic rod 204 to rotate, the second electric telescopic rod 204 drives the fixed block 203 located at the output end to rotate, the fixed block 203 drives the foam clip 202 to rotate, and the foam clip 202 drives the sponge 201 to rotate, so as to adjust the laser radar 4. The detection port of the laser radar 4 can be cleaned. When the detection port of the laser radar 4 on the cruise drone body 1 is dirty, the detection port of the laser radar 4 can be cleaned by this device. Compared with the drone returning and then manually cleaning and then working again, this cleaning method is more efficient. This efficient cleaning method can ensure that the performance of the laser radar 4 is restored in time, thereby maintaining its optimal working state. At the same time, this cleaning method saves the power consumption of the drone returning and then manually cleaning and then working again, so that the drone can work longer. Mechanical automatic cleaning equipment is usually equipped with precise sensors and control systems, which can accurately locate and clean the dirt on the surface of the laser radar 4 to avoid unnecessary damage to the equipment.

[0034] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. An aerial survey drone, characterized in that: It comprises an unmanned aerial vehicle body (1), a radar cleaning mechanism (2) is arranged at the bottom of the unmanned aerial vehicle body (1), and a laser radar (4) is arranged at the bottom of the unmanned aerial vehicle body (1); The radar cleaning mechanism (2) comprises a groove (209), wherein the groove (209) is provided at the bottom of the drone body (1), a first motor (210) is fixedly mounted on the inner wall of the groove (209), a first gear (208) is fixedly mounted on the output end of the first motor (210), a second gear (207) is rotatably connected to the bottom of the drone body (1) via a bearing, the teeth of the second gear (207) and the first gear (208) are meshed with each other, a first electric telescopic rod (206) is fixedly mounted on the surface of the second gear (207), and the telescopic end of the first electric telescopic rod (206) is fixedly mounted on the surface of the second gear (207). A connecting piece protection box (205) is fixedly installed, and the inner wall of the connecting piece protection box (205) is rotatably connected to a second electric telescopic rod (204), and a fixed block (203) is fixedly installed at the telescopic end of the second electric telescopic rod (204), and a foam clip (202) is fixedly installed on the surface of the fixed block (203), and a sponge (201) is fixedly installed on the inner side of the foam clip (202), and the top of the sponge (201) is in contact with the bottom of the laser radar (4), and a straight rod (5) is fixedly installed on the top of the laser radar (4), and the top of the straight rod (5) is fixedly connected to the bottom of the drone body (1).

2. The aerial survey drone according to claim 1, characterized in that: A second motor (8) is fixedly mounted on the inner wall of the connector protection box (205); a third gear (9) is fixedly connected to the output end of the second motor (8); a gear shaft (10) is fixedly mounted on the telescopic end of the second electric telescopic rod (204); a gear groove (13) is provided on the surface of the gear shaft (10); teeth of the third gear (9) and the gear groove (13) are meshed with each other; and the top of the connector protection box (205) is fixedly connected to the surface of the gear shaft (10).

3. The aerial survey drone according to claim 2, characterized in that: The inner wall of the connector protection box (205) is provided with a limiting groove (15), the surface of the gear shaft (10) is fixedly mounted with a limiting block (14), and the surface of the limiting block (14) is slidably connected to the inner cavity of the limiting groove (15).

4. The aerial survey drone according to claim 1, characterized in that: A fixing plate (6) is fixedly mounted on the surface of the straight rod (5), and the number of the fixing plates (6) is four. The inner wall of the fixing plate (6) is threadedly connected to a first screw (3), and the surface of the first screw (3) is threadedly connected to the inner wall of the drone body (1).

5. The aerial survey drone according to claim 1, characterized in that: A rod frame (11) is fixedly mounted on the surface of the drone body (1), the number of the rod frames (11) is four, a propeller (12) is arranged on the top of the rod frame (11), a second screw (16) is threadedly connected to the inner wall of the rod frame (11), and the surface of the second screw (16) is threadedly connected to the inner wall of the propeller (12).

6. The aerial survey drone according to claim 1, characterized in that: A fixed disc (7) is provided at the bottom of the second gear (207), and the surface of the fixed disc (7) is fixedly mounted on the bottom of the drone body (1).

7. The aerial survey UAV according to claim 1, characterized in that: The first electric telescopic rod (206) and the second electric telescopic rod (204) are both made of aluminum alloy.