1. School of Automation and Electrical Engineering, Key Laboratory of Knowledge Automation for Industrial Processes Ministry of Education, University of Science and Technology Beijing, Beijing, China
2. School of Advanced Manufacturing, Sun Yat-sen University, Shenzhen, China
3. University of Macau, Department of Computer and Information Science, State Key Laboratory of Internet of Things for Smart City, Macau, Macau
4. Department of Electrical and Computer Engineering, Missouri University of Science and Technology, Rolla, MO, USA