1. Shanghai Key Laboratory of Intelligent Manufacturing and Robotics, School of Mechatronic Engineering and Automation, Shanghai University, Shanghai, China
2. School of Mechatronic Engineering and Automation, Shanghai University, Shanghai, China
3. College of Agricultural Unmanned System, China Agricultural University, Beijing, China
4. School of Mechanical Engineering, Southeast University, Nanjing, China
5. School of Mechanical and Aerospace Engineering, Queen‘s University Belfast, Belfast, U.K.