1. College of Control Science and Engineering, Bohai University, Jinzhou, People's Republic of China
2. School of Information Science and Engineering, Shandong Normal University, Jinan, People's Republic of China
3. School of Engineering, Qufu Normal University, Rizhao, People's Republic of China
4. Harbin Modern Application Technology Secondary Vocational Schools, Harbin, People's Republic of China
5. Faculty of Electronic Information and Electrical Engineering, Dalian University of Technology, Dalian, People's Republic of China