Flight skills for crop protection unmanned aerial vehicle operations

　　1、 Flight requirements for unmanned aerial vehicle plant protection operations

　　1. Extremely low altitude flight

　　The optimal height for crop protection operations is about one meter above the tip of the crop leaf. For low growing crops such as wheat during the seedling stage, drones should fly at a height of two meters above the ground. The flight altitude accuracy should be in the decimeter level.

　　2. High precision straight-line flight

　　Plant protection operations must maintain straight flight to ensure that there is no leakage or re spraying. The flight level accuracy should be in the decimeter level.

　　3. Slow and uniform flight

　　The atomization effect of drone crop protection is very good, and the efficacy is closely related to the speed of the drone. Generally, it should maintain a constant speed of 4-6 meters per second during flight.

　　4. Super visual flight one

　　The visual flight of crop protection drones can only reach a maximum distance of 200 meters. For fields with a width greater than 500 meters, it will be difficult to choose takeoff and landing points for pesticide application, and operations cannot be carried out in the middle of the field. In terms of crop protection efficiency, it is best for a drone to fly back and forth with one takeoff and landing, and then return to the starting point to add medicine. Plant protection operations must have the ability of super visual flight, and the super visual flight distance should be half of the total operating distance of the drone.

　　5. Avoiding eye obstacles during flight

　　For plant protection operations such as tall crops, fruit trees, and trees, visual flight operations are obstructed, and effective means of avoiding eye obstacles and controlling flight are necessary.

　　6. Fixed point vertical takeoff and landing

　　The terrain in Datian is complex, and it is difficult to choose a dosing point. Drones often take off and land in narrow spaces without runway conditions, and must have the ability to control vertical takeoff and landing at designated points.

　　2、 Ensuring the Flight of Plant Protection Operations

　　1. A skilled pilot with excellent flying skills

　　Plant protection operations have very high requirements for pilots. Within the visual range of flight, without the use of navigation equipment, the pilot must achieve locked height, straight line, and uniform speed flight, and take off and land at fixed points in narrow spaces. This is the basic skill of the pilot and the most fundamental guarantee for crop protection operations.

　　2. GPS navigation

　　Using GPS navigation for autonomous flight and manual intervention by the controller is one of the ways to ensure crop protection operations. But the accuracy requirements for navigation are high, especially the requirement for lock height to reach the decimeter level, which is not achievable by general GPS and requires the use of differential GPS devices. In addition, beyond the visual flight distance, manual intervention has little effect and relies entirely on autonomous navigation for flight, which requires high reliability performance of navigation equipment and will also lead to increased costs.

　　3. FPV flight

　　Using GPS navigation for autonomous flight and manual intervention for FPV flight by the controller should be a good method to ensure crop protection operations. Compared to other unmanned aerial vehicle (UAV) operations, crop protection operations have shorter distances, slower speeds, and simpler flights, making it less difficult to operate FPV flights and equipment. Using FPV flight, the controller can immerse themselves in the scene, overcome visual limitations, intervene in navigation and autonomous flight deviations at any time, and ensure super visual and obstacle avoidance flight operations.

　　4. Vertical takeoff and landing flight

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

　　The above is about the flying skills of plant protection UAVs. If you want to know more about plant protection UAVs, you are welcome to pay attention to the official account of Jingfei intelligent UAVs, or you can add the following WeChat private chat questions, and Jingfei intelligent UAVs will answer for you!