Unmanned small helicopters have low operating height, less drift, can hover in the air, do not need a dedicated take-off and landing airport, the downward airflow generated by the rotors can help increase the penetration of fog flow to crops, high prevention and control effect, remote control operation, spraying operators avoid the risk of exposure to pesticides, improve the safety of spraying operations and many other advantages.
In addition, the electric unmanned helicopter spraying technology using spray spraying method can save at least 50% of pesticide use, save 90% of water, which will greatly reduce the cost of resources. The use of drones for spraying has greatly reduced the exposure risk associated with the gathering of people. Compared with oil-powered UAV, the whole size is small, the weight is light, the depreciation rate is lower, the unit operation labor cost is not high, easy to maintain.
