Height control method for near-crop flight of plant protection unmanned aerial vehicle

A plant protection UAV and height control technology, which is applied in vehicle position/route/height control, attitude control, control/adjustment system, etc., can solve the problems of inability to realize spray operation adaptability and low cost, and achieve spray effect Good, reduce damage, increase adaptability effect

Active Publication Date: 2020-04-24
JIANGSU UNIV
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0006] Aiming at the above-mentioned technical problems, the present invention provides a method for controlling the height of plant protection drones near crops. By using this method, it is possible to overcome the problem that the fixed-altitude flight in the flight process of the existing plant protection drones cannot realize the spraying operation. Adaptability, according to the lodging situation of different crops, different models can achieve height control after a large number of adjustments, and have better adaptability in height control for different crops, with low cost and good spraying effect.

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  • Height control method for near-crop flight of plant protection unmanned aerial vehicle
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  • Height control method for near-crop flight of plant protection unmanned aerial vehicle

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Embodiment Construction

[0029] The present invention will be further explained below in conjunction with the accompanying drawings and examples.

[0030] Such as figure 1 As shown, the overall height control of the plant protection UAV from the crops is completed by the flight control system inside the autopilot. When starting up, the GPS module first completes the height positioning of the plant protection UAV, and then completes the highly stable control through the autopilot; when performing operations, affected by the wind field, when the crops produce lodging-like changes, the ranging module measures the plant protection drone. The distance between the drone and the crops; lower the flying height of the aircraft to ensure that the crops are within a certain spray range; during the flight of the drone, the measurement data is fed back in real time to complete real-time control.

[0031] Such as figure 2 As shown, the spray boom is installed at the lower end of the plant protection drone body, ...

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Abstract

The invention relates to a height control method for near-crop flight of a plant protection unmanned aerial vehicle. The height control method is characterized by utilizing a rang finding module to measure position variation of crops after inclination due to the influence of a wind field, and continuously controlling the flight height of the plant protection unmanned aerial vehicle to meet the plant protection operation requirement. The range finding module is used for detecting the positions of crops, and signals generated by the range finding module are fed back to an autopilot, so that corresponding height control is carried out. By using the control method, the adaptivity of height control of the plant protection unmanned aerial vehicle can be realized, and the control method has the advantages of high efficiency, real-time performance, good plant protection operation effect and the like.

Description

technical field [0001] The present invention relates to a height control method for plant protection drones to fly close to crops, in particular to the situation of lodging of crops after being affected by the wind field of plant protection drones, in order to better complete the spraying operation. A method of height control for flying close to crops. Background technique [0002] At present, altitude control is a very basic function in the control system of UAVs, especially multi-rotor UAVs. However, in the original multi-rotor UAV flight control system, only the attitude control function is realized at present, that is, the function of automatically maintaining the UAV's horizontal stability by using a microcontroller, acceleration and angular velocity sensors. The altitude maintenance depends entirely on the operator to manually control the size of the throttle, and then control the lift generated by the propeller. This operation requires a lot of practice to achieve, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D1/08G05D1/10
CPCG05D1/0808G05D1/101
Inventor 邱白晶张学聪王尚峰苏春雷
Owner JIANGSU UNIV
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