1. National Research Center of Intelligent Equipment for Agriculture, Beijing Academy of Agricultural and Forestry Sciences, Beijing 100097, China
2. Research Center for Intelligent Equipment, Beijing Academy of Agricultural and Forestry Sciences, Beijing 100097, China
3. National Center for International Research on Agricultural Aerial Application Technology, Beijing 100097, China
4. Institute of Plant Protection, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China