Multi-Functional Hybridized Units for Self- Sustainable IoT Sensing and Ultra-Low Frequency Energy Harvesting

In this manuscript, we reported two multi-functional units aiming at providing a promising monitoring platform applied in walking sticks for elderly and motion impaired people. One rotational unit equipped with an electromagnetic generator (EMG) and linear-to-rotary structure is proposed to harvest the ultra-low frequency linear motion of a walking stick and serve as the sustainable power supply for an Internet of Things (IoT) sensing system. And one hybridized unit further integrated with two self-powered triboelectric sensors to extract the motion features of the walking stick is designed to achieve multi-functional monitoring of users with deep learning technology. Promisingly, the walking stick equipped with proposed units shows a great potential of being an intelligent aid for motion-impaired users to help them live a life with adequate autonomy and safety.