1. Faculty of Modern Agricultural Engineering, Kunming University of Science and Technology, Kunming 650504, China
2. School of Modern Information Industry, Guangzhou College of Commerce, Guangzhou 511363, China
3. Foshan-Zhongke Innovation Research Institute of Intelligent Agriculture and Robotics, Foshan 528231, China
4. College of Engineering, South China Agricultural University, Guangzhou 510642, China