What are the operational requirements for plant protection drones?

First, the flight requirements of Carter UAV plant protection machine operation

1, flying at low altitude. Kt02

The height of the UAV plant protection machine is about one meter above the crop tip. For low crops such as wheat at seedling stage, the drone should fly at a height of two meters from the ground. The flying height accuracy should be in decimeter level.

2. High-precision straight flight.

The UAV plant protection machine must fly in a straight line to ensure that there is no leakage and re-spraying. The accuracy of flying height should be in decimeter level.

3. Slow and even flight.

Like Carter UAV plant protection machine, the atomization effect of plant protection is very good, and the efficacy is closely related to the speed of UAV. Generally, a uniform motion of 4 ~ 6m/s should be maintained.

4. Super visual flight.

The visible flight of the UAV plant protection machine can only reach 200 meters. For fields with a width of more than 500 meters, it will be difficult to choose landing sites and dosing sites, and it is impossible to work in the middle of the fields. In terms of plant protection efficiency, the drone took off and landed and flew back and forth, returning to the starting point to add medicine. Plant protection operations must have over-the-horizon flight capability, and the over-the-horizon flight distance should be half of the total operating distance of the drone.

5. Avoid obstacles when flying.

Used for plant protection of tall crops, fruit trees and trees. The line of sight of visual flight operation is blocked, and effective measures must be taken to avoid eye obstacles and control flight.

6. Fixed-point vertical take-off and landing.

The site topography is complex, and it is difficult to choose the dosing point. Uavs often take off and land in narrow spaces, and there is no runway take-off and landing condition, so they must have fixed-point vertical take-off and landing control capability.

The second is to ensure the flight of UAV plant protection machine.

1, a pilot with excellent flying skills.

Plant protection needs flying hands very much. Within the visual flight distance, the pilot must fly at a high, straight and uniform speed without the help of navigation equipment, and take off and land at a fixed point in a narrow space. This is the basic skill of flying hand and the basic guarantee of plant protection operation.

2.GPS navigation

Using GPS navigation for autonomous flight and manual intervention by operators is one of the ways to ensure plant protection operations. However, the accuracy of navigation is required, especially the lock height is required to reach decimeter level, which is impossible for general GPS and requires differential GPS equipment. In addition, outside the visual flight distance, manual intervention does not play much role, and it depends entirely on autonomous navigation, which requires very high reliability of navigation equipment and will also bring about an increase in cost.

3. Vertical take-off and landing flight.

Due to the lack of landing runway conditions, general plant protection operations are carried out by unmanned helicopters and multi-rotor drones.