Design, Modelling and Test on an Energy Harvesting Treadmill with Flexible Damping and Wireless Sensing

Abstract

An energy harvesting treadmill is proposed in this study, exhibiting several advantages (e.g., damping adjustable, self-power wireless sensing, as well as real-time monitoring). The compact configuration of the connected treadmill is proposed for its energy harvesting property, and a mechatronic damper is employed to replace the conventional hydraulic damper. Subsequently, the kinematic principle of the energy harvesting treadmill is investigated through virtual prototyping. Next, the compression and rebound process are analyzed comprehensively. Lastly, the experimental test is performed to explore the dynamic property of the mechatronic damper as well as the conventional damper. The damping force can be regulated flexibly and electronically by varying the external resistor properly. Moreover, the energy harvesting property is confirmed. The results suggest that the extracted energy is at a 10W level, which can power the wireless connector system. The exercise process can be monitored through the developed APP, without an extra power supply or battery.