1. College of Machinery Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China
2. Zhejiang Ecowell Energy Management Technology Co., Ltd., Hangzhou 310012, China
3. Changshan Research Institute, Zhejiang Sci-Tech University, Changshan 324299, China
4. College of Metrology and Measurement Engineering, China Jiliang University, Hangzhou 310018, China