1. Wang, L.: The market size of two-wheel electric vehicles will reach 100 billion, and the new national standard will intensify the industry reshuffle. Electr. Bicycle 2, 3–4 (2020). (in Chinese)
2. Mu, D.: Where is the innovation and pride of domestic electric bicycles? China Internet Week 639(09), 22–23 (2017). (in Chinese)
3. Reddy, V.M., Vinay, N., Pokharna, T., Jha, S.S.K.: Internet of things enabled smart switch. In: Proceedings of the Thirteenth International Conference on Wireless and Optical Communications Networks (WOCN), pp. 1–4. Hyderabad, India (2016)
4. Tian, C.Y.: Design and implementation of electronic lock security system based on smart phone controlled. University of Electronic Science and Technology of China (2020). (in Chinese)
5. Zhang, Z.F.: NB-IoT low-rate narrowband IoT communication technology status and development research. Wirel. Internet Technol. 15(12), 12–13 (2018). (in Chinese)