A real-time detection system for the lift force and ground effect change of plant protection UAV

Abstract

The invention relates to a real-time detection system for the lift force and ground effect change of a plant protection drone, including: a small sprocket, a motor, two wheel frames, a polished rod I, a slider I, two trusses, a sprocket seat, a large sprocket, Beams, wires, gyroscopes, microcontrollers and wireless communication systems, power supplies, polished rods II, sliders II, cable ties, pull pressure sensors I, steady frames, pull pressure sensors II, moving beams, chains, pressure sensors I, pressure sensors II , pressure sensor III, pressure sensor IV, pressure sensor V, pressure sensor VI, pressure sensor bracket I, pressure sensor bracket II, pressure sensor bracket III, pressure sensor base, two pressure sensor base polished rods; the plant protection drone of the present invention The height can be adjusted, and it can obtain the attitude change of the plant protection drone and the change of the ground wind field, and analyze the change of the ground effect intensity through the change of lift force and attitude change, which provides a basis for the parameter selection of the actual spraying operation of the plant protection drone.

Description

technical field [0001] The invention relates to a real-time detection system for the lift force and ground effect change of a plant protection drone, which belongs to the field of flight stability testing and evaluation of the plant protection drone. Background technique [0002] In recent years, plant protection UAV technology has developed rapidly and is widely used in the agricultural field. During the plant protection operation, the downwash flow field of the plant protection drone will rebound or hoist when encountering dense objects such as the ground or crop canopy, which is called ground effect (referred to as "ground effect"). Different working heights will form ground effects of different strengths. While the ground effect drives the fog droplets to reach the crop surface, it will also react on the plant protection drone, causing the body of the plant protection drone to shake and lift to change, thereby affecting flight stability. Therefore, it is necessary to d...

AI Technical Summary

Problems solved by technology

The detection method in this paper has certain limitations. The flying height of the helicopter cannot be strictly controlled, and it can only detect the change of lift force. It cannot explore the specific distribution of ground effect and the jitter generated by the drone. The attitude change of the machine, the purpose of measurement and the design of the device are all different from those of the present invention

[0006] At present, most of the relevant testing equipment is aimed at the lift test of UAVs at a fixed height, lacking the ability to simulate different operating heights of plant protection UAVs, and has not yet involved the relationship between lift changes and ground effect changes. Intensity change to get ground effect

Images