1. School of Information and Electrical Engineering, Hangzhou City University, Hangzhou 310015, Zhejiang, China
2. Institute of Automation, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China
3. Shandong Hongjitang Pharmaceutical Group Co Ltd, Jinan 250103, China
4. College of Instrumentation & Electrical Engineering, Jilin University, Changchun 130061, Jilin, China