Unmanned aerial vehicle aerial survey method

Abstract

The invention relates to the technical field of aerial survey, in particular to an unmanned aerial vehicle aerial survey method. The method comprises the steps of S1, assembling an unmanned aerial vehicle; s2, establishing a ground signal receiving station; s3, driving the unmanned aerial vehicle body; s4, collecting information; and S5, collecting information received by the ground signal receiving station, and processing the collected information through an external data analysis system. Through the first flow guide curved surface and the second flow guide curved surface, the air flow guide effect during flight of the unmanned aerial vehicle body is effectively achieved, stable flight and aerial survey treatment of the unmanned aerial vehicle body are kept, and when the unmanned aerial vehicle body flies in different directions, the air flow in different directions is effectively guided. Through the flow guide curved surface structures at different positions, the contacted airflow is effectively subjected to flow guide treatment, and smooth flow guide of the unmanned aerial vehicle body to the airflow is kept; by arranging the air cylinder and the servo motor, the aerial survey mechanism can be conveniently driven to be adjusted at multiple angles, and therefore aerial photography work can be better carried out.

Description

Technical Field

[0001] The invention relates to the technical field of aerial surveying, and in particular to an unmanned aerial vehicle aerial surveying method. Background Art

[0002] When conducting geographic information surveying and mapping of some areas with complex topography, it is necessary to use drones for geographic information surveying and mapping. Unmanned aircraft, referred to as "drones", are unmanned aircraft controlled by radio remote control equipment and self-contained program control devices, or are completely or intermittently autonomously operated by on-board computers. The application of drones in the industry is the real rigid demand for drones. At present, drones are used in aerial photography, agriculture, plant protection, micro selfies, express delivery, disaster relief, wildlife observation, infectious disease monitoring, surveying and mapping, news reporting, power inspections, disaster relief, film and television shooting, etc., which greatly expands the use of drones themselves. Developed countries are also actively expanding industry applications and developing drone technology.

[0003] However, during the aerial survey, the existing UAVs cannot form a smooth air guide structure with the UAV body, which increases the flight burden of the UAV itself and is not conducive to the long-term flight of the UAV at high altitudes, especially when encountering strong convective weather, which can easily lead to unstable flight of the UAV and is affected by the high air pressure; and in high-altitude aerial surveys, the humidity in the air is greater than that in low areas, so during aerial surveys, the camera is very easy to fog up, seriously affecting the aerial photography effect of the camera, and there are limitations. At the same time, the cameras of existing aerial photography UAVs are mostly directly fixed on the bottom of the UAV, or are rotatably set on the bottom of the UAV. The range of movement of the camera is limited, and it is difficult to take aerial photos of the surrounding environment from multiple angles, and the aerial photography effect is not good. Summary of the invention

[0004] In view of the defects in the prior art, the present invention provides a UAV aerial survey method, which can ensure the stability of the aerial survey module when in use, and at the same time form a smooth air guide structure with the UAV fuselage, thereby reducing the impact on the UAV's flight state and maintaining the stability of aerial survey and aerial photography. At the same time, the camera can be adjusted at multiple angles to prevent fogging on the camera surface and affecting the camera's aerial photography effect.

[0005] In order to solve the above technical problems, the present invention proposes the following technical solutions:

[0006] A drone aerial survey method comprises the following steps:

[0007] S1, assemble the drone, install the cylinder and the servo motor at the bottom of the drone body, set the aerial survey mechanism at the output end of the servo motor, and flexibly set the output end of the cylinder at the side of the servo motor;

[0008] S2, establish a ground signal receiving station, wirelessly connect the drone body to the established ground signal receiving station, preset an aerial survey route, and enter the preset aerial survey route into the aerial survey mechanism of the drone body;

[0009] S3, driving the drone body to make the drone body perform aerial survey along the aerial survey route preset in S2. When encountering airflow, the first guide curved surface and the second guide curved surface provided in the connecting component are used to guide the air flow of the drone body during flight, thereby reducing the impact of the airflow on the drone.

[0010] S4, collecting information, collecting aerial photography information through the aerial survey mechanism, and controlling the servo motor and cylinder activities according to needs during the collection process, so that the camera can rotate and adjust the tilt angle, so that the camera can take aerial photos of the surrounding environment from multiple angles;

[0011] S5, collects the information received by the ground signal receiving station, and processes the collected information through an external data analysis system.

[0012] Furthermore, the connecting component is fixed to the bottom of the drone body, and the connecting component includes a first guide curved surface, a second guide curved surface and a guide cover. The second guide curved surface and the first guide curved surface are respectively located on the surface and both side edges of the connecting component, and the two are respectively in an arc-shaped convex setting and an arc-shaped transition setting.

[0013] Furthermore, the aerial survey mechanism includes a mounting frame, a servo motor, a scraper, a camera, a single-chip microcomputer and a memory. The single-chip microcomputer is wirelessly connected to the servo motor, the output end of the servo motor is connected to the scraper, the camera is arranged at the bottom of the mounting frame, and the mounting frame is installed at the output end of the servo motor. The scraper is arranged in an arc shape as a whole, and the scraper is in active contact with the surface of the camera. The memory is used to store the aerial survey route preset in S2 and the information collected in S4.

[0014] Furthermore, a humidity sensor is also provided in the mounting frame, and the humidity sensor is electrically connected to the single chip microcomputer.

[0015] Furthermore, the telescopic end of the cylinder is connected with a hinge, which is slidably arranged on the side of the servo motor. The bottom of the cylinder is also provided with a hinge block, the cylinder is movably arranged on the hinge block, and the hinge block is installed on the connecting assembly.

[0016] Furthermore, a universal ball is embedded in the bottom of the connection component, and the bottom of the universal ball is connected to the servo motor. A connecting column is also installed between the servo motor and the connection component, and the connecting column is made of a flexible material.

[0017] Furthermore, buffer brackets are arranged around the bottom of the drone body.

[0018] Furthermore, in S2, the preset aerial survey route acquisition method includes the following steps:

[0019] Step 1: Obtain the flight area and parameters of the aerial survey, including the flight altitude and lateral overlap;

[0020] Step 2, calculating the route spacing between adjacent routes;

[0021] Step three, based on the route spacing calculated in step two, an aerial survey route is generated in the flight area, and the generated aerial survey route is entered into the aerial survey mechanism of the drone body.

[0022] Further, in step 2, the route spacing = 0.94*flight altitude*(1-lateral overlap*0.01).

[0023] It can be seen from the above technical solution that the beneficial effects of the present invention are:

[0024] The present invention achieves an effective air diversion effect when the drone body is flying through the first guide curved surface and the second guide curved surface, thereby maintaining its stable flight and aerial survey processing. When the drone body flies in different directions, it encounters airflows in different directions. The guide curved surface structures at different positions can effectively divert the contacted airflows, thereby maintaining the drone body's smooth diversion of the airflow. By arranging the cylinder and the servo motor, it is convenient to drive the aerial survey mechanism to adjust at multiple angles, thereby better performing aerial photography. By arranging the servo motor and the scraper, it is convenient to clean the camera, thereby facilitating the camera to take high-definition photos for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0026] Figure 1 It is a bottom view of the overall structure of the present invention;

[0027] Figure 2 A bottom view of the aerial survey mechanism of the present invention;

[0028] Figure 3 It is a partial connection diagram of the connection component and the servo motor in the present invention.

[0029] Reference numerals:

[0030] 1-UAV body, 2-connecting assembly, 3-aerial survey mechanism, 301-servo motor, 302-scraper, 303-camera, 4-servo motor, 5-cylinder, 6-first guide surface, 7-second guide surface, 8-guide cover, 9-connecting column, 10-hinge, 11-universal ball, 12-humidity sensor, 13-buffer bracket. DETAILED DESCRIPTION

[0031] The following embodiments of the technical solution of the present invention are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore only used as examples, and cannot be used to limit the protection scope of the present invention.

[0032] See also Figure 1-3 As shown, a drone aerial survey method comprises the following steps:

[0033] S1, assemble the drone, install the cylinder and the servo motor at the bottom of the drone body, set the aerial survey mechanism at the output end of the servo motor, and flexibly set the output end of the cylinder at the side of the servo motor;

[0034] S2, establish a ground signal receiving station, wirelessly connect the drone body to the established ground signal receiving station, preset an aerial survey route, and enter the preset aerial survey route into the aerial survey mechanism of the drone body;

[0035] S3, driving the drone body to make the drone body perform aerial survey along the aerial survey route preset in S2. When encountering airflow, the first guide curved surface and the second guide curved surface provided in the connecting component are used to guide the air flow of the drone body during flight, thereby reducing the impact of the airflow on the drone.

[0036] S4, collecting information, collecting aerial photography information through the aerial survey mechanism, and controlling the servo motor and cylinder activities according to needs during the collection process, so that the camera can rotate and adjust the tilt angle, so that the camera can take aerial photos of the surrounding environment from multiple angles;

[0037] S5, collects the information received by the ground signal receiving station, and processes the collected information through an external data analysis system.

[0038] In actual use, the first guide surface and the second guide surface are used to achieve an effective air diversion effect when the drone body is flying, so as to maintain its stable flight and aerial survey processing. When the drone body is flying in different directions, it encounters airflows in different directions. The guide surface structures at different positions can effectively divert the contacted airflows, so as to maintain the smooth diversion of the airflow by the drone body. By setting up the cylinder and the servo motor, it is convenient to drive the multi-angle adjustment of the aerial survey mechanism, so as to better carry out aerial photography. By setting up the servo motor and the scraper, it is convenient to clean the camera, so as to facilitate the long-term high-definition shooting of the camera.

[0039] In this embodiment, the connecting component is fixed to the bottom of the drone body, and the connecting component includes a first guide curved surface, a second guide curved surface and a guide cover. The second guide curved surface and the first guide curved surface are respectively located on the surface and the edge positions of both sides of the connecting component, and the two are respectively arranged in an arc-shaped convexity and an arc-shaped transition. Specifically, through the first guide curved surface and the second guide curved surface, an effective air diversion effect is achieved when the drone body is flying, and its stable flight and aerial survey processing are maintained. When the drone body flies in different directions, it encounters airflows in different directions. Through the guide curved surface structures at different positions, the airflow in contact is effectively diverted, and the drone body is kept to guide the airflow smoothly.

[0040] In this embodiment, the aerial survey mechanism includes a mounting frame, a servo motor, a scraper, a camera, a single-chip microcomputer and a memory. The single-chip microcomputer is wirelessly connected to the servo motor, and the output end of the servo motor is connected to the scraper. The camera is arranged at the bottom of the mounting frame, and the mounting frame is installed at the output end of the servo motor. The scraper is arranged in an arc shape as a whole, and the scraper is in active contact with the surface of the camera. The memory is used to store the aerial survey route preset in S2 and the information collected in S4; a humidity sensor is also provided in the mounting frame, and the humidity sensor is electrically connected to the single-chip microcomputer; specifically, the setting of the humidity sensor can detect the humidity of the camera, so that when the camera is wet and foggy, it can transmit instructions to the single-chip microcomputer, so that the scraper can be driven to rotate by controlling the servo motor to clean the camera, thereby ensuring long-term high-definition video recording of the camera and better aerial survey effect.

[0041] In this embodiment, the telescopic end of the cylinder is connected with a hinge, which is slidably arranged on the side of the servo motor. A hinge block is also provided at the bottom of the cylinder. The cylinder is movably arranged on the hinge block, and the hinge block is installed on the connecting assembly. Specifically, the hinge and the hinge block can be set to facilitate the movement of the cylinder when pushing the servo motor.

[0042] In this embodiment, a universal ball is embedded in the bottom of the connecting component, and the bottom of the universal ball is connected to the servo motor. A connecting column is also installed between the servo motor and the connecting component, and the connecting column is made of a flexible material. Specifically, by setting the universal ball, the servo motor can be driven to adjust the angle when the cylinder is pushed, so as to facilitate driving the camera for multi-angle aerial photography, and the aerial photography effect is better. By setting a flexible connecting column, the connection of the servo motor can be assisted while facilitating the adaptation to the tilt of the servo motor.

[0043] In this embodiment, buffer brackets are arranged around the bottom of the drone body; specifically, through the arrangement of the buffer brackets, the drone is buffered when it lands, thereby protecting the drone.

[0044] In this embodiment, in S2, the preset aerial survey route acquisition method includes the following steps:

[0045] Step 1: Obtain the flight area and parameters of the aerial survey, including the flight altitude and lateral overlap;

[0046] Step 2, calculating the route spacing between adjacent routes;

[0047] Step three, based on the route spacing calculated in step two, an aerial survey route is generated in the flight area, and the generated aerial survey route is entered into the aerial survey mechanism of the drone body.

[0048] Further, in step 2, the route spacing = 0.94*flight altitude*(1-lateral overlap*0.01).

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. A drone aerial survey method, characterized in that: The following steps are involved: S1, assemble the drone, install the cylinder and the servo motor at the bottom of the drone body, set the aerial survey mechanism at the output end of the servo motor, and flexibly set the output end of the cylinder at the side of the servo motor; S2, establish a ground signal receiving station, wirelessly connect the drone body to the established ground signal receiving station, preset an aerial survey route, and enter the preset aerial survey route into the aerial survey mechanism of the drone body; S3, driving the drone body to make the drone body perform aerial survey along the aerial survey route preset in S2. When encountering airflow, the first guide curved surface and the second guide curved surface provided in the connecting component are used to guide the air flow of the drone body during flight, thereby reducing the impact of the airflow on the drone. S4, collecting information, collecting aerial photography information through the aerial survey mechanism, and controlling the servo motor and cylinder activities according to needs during the collection process, so that the camera can rotate and adjust the tilt angle, so that the camera can take aerial photos of the surrounding environment from multiple angles; S5, collects the information received by the ground signal receiving station, and processes the collected information through an external data analysis system.

2. The method for aerial surveying by using an unmanned aerial vehicle according to claim 1, characterized in that: The connecting component is fixed at the bottom of the drone body, and includes a first guide curved surface, a second guide curved surface and a guide cover. The second guide curved surface and the first guide curved surface are respectively located on the surface and both side edges of the connecting component, and the two are respectively in an arc-shaped convex setting and an arc-shaped transition setting.

3. The method for aerial surveying by using an unmanned aerial vehicle according to claim 1, characterized in that: The aerial survey mechanism includes a mounting frame, a servo motor, a scraper, a camera, a single-chip microcomputer and a memory. The single-chip microcomputer is wirelessly connected to the servo motor, the output end of the servo motor is connected to the scraper, the camera is arranged at the bottom of the mounting frame, and the mounting frame is installed at the output end of the servo motor. The scraper is arranged in an arc shape as a whole, and the scraper is in active contact with the surface of the camera. The memory is used to store the aerial survey route preset in S2 and the information collected in S4.

4. The method for aerial surveying by using an unmanned aerial vehicle according to claim 3, characterized in that: A humidity sensor is also provided in the mounting frame, and the humidity sensor is electrically connected to the single chip microcomputer.

5. The method for aerial surveying by using an unmanned aerial vehicle according to claim 1, characterized in that: The telescopic end of the cylinder is connected with a hinge, which is slidably arranged on the side of the servo motor. The bottom of the cylinder is also provided with a hinge block, on which the cylinder is movably arranged, and the hinge block is installed on the connecting assembly.

6. The method for aerial surveying by using an unmanned aerial vehicle according to claim 1, characterized in that: A universal ball is embedded in the bottom of the connection component, and the bottom of the universal ball is connected to the servo motor. A connecting column is also installed between the servo motor and the connection component, and the connecting column is made of a flexible material.

7. The method for aerial surveying by using an unmanned aerial vehicle according to claim 1, characterized in that: Buffer brackets are arranged around the bottom of the drone body.

8. The method for aerial surveying by using an unmanned aerial vehicle according to claim 1, characterized in that: In S2, the preset aerial survey route acquisition method includes the following steps: Step 1: Obtain the flight area and parameters of the aerial survey, including the flight altitude and lateral overlap; Step 2, calculating the route spacing between adjacent routes; Step three, based on the route spacing calculated in step two, an aerial survey route is generated in the flight area, and the generated aerial survey route is entered into the aerial survey mechanism of the drone body.

9. The method for aerial surveying by using an unmanned aerial vehicle according to claim 8, characterized in that: In step 2, the route spacing = 0.94*flight altitude*(1-lateral overlap*0.01).

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