1. Research Center of Flexible Sensing Materials and Devices School of Applied Physics and Materials Wuyi University Jiangmen 529020 China
2. Key Laboratory of Traffic Safety on Track of Ministry of Education School of Traffic and Transportion Engineering Central South University Changsha 410075 China
3. School of Rail Transportation Wuyi University Jiangmen 529020 China
4. Faculty of Intelligent Manufacturing Wuyi University Jiangmen 529020 China
5. WYU-Flexwarm Joint Lab for Flexible Sensing Technologies Guangzhou CarbonSens Technology Co., Ltd. Guangzhou 511483 China