1. School of Mechatronics Engineering, Harbin Institute of Technology, Harbin 150001, People's Republic of China
2. State Key Laboratory of Robotics and System (HIT), Harbin 150001, People's Republic of China
3. School of Energy Science and Engineering, Harbin Institute of Technology, Harbin 150001, People's Republic of China
4. School of Physics and Electronic Engineering, Harbin Normal University, Harbin 150001, People's Republic of China