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Enhanced Energy Harvester Based on Vibration Analysis of Bicycle Riding  

Yeo, Jung-Jin (Department of Healthcare Engineering, Chonbuk National University)
Ryu, Mun-Ho (Division of Biomedical Engineering, Chonbuk National University)
Kim, Jung-Ja (Division of Biomedical Engineering, Chonbuk National University)
Yang, Yoon-Seok (Division of Biomedical Engineering, Chonbuk National University)
Publication Information
Journal of the Institute of Electronics Engineers of Korea SC / v.49, no.1, 2012 , pp. 47-56 More about this Journal
Abstract
Bicycle has a large amount of kinetic energy available for energy harvesting technology in its speedy and balanced riding movement. Systematic and realistic analysis of its dynamic property is essential to improve the efficiency of energy harvester. However, there has not been enough researches about precise measurement or analysis of bicycle dynamics on real roads. This study aims to investigate the characteristics of vibrational movement of bicycle using MEMS-based accelerometer and to develop a prototype of electromagnetic energy harvester with nonlinear behavior which is proper to the random vibrations accompanied in bicycle riding. The vibrational components have average magnitude of 1 g and turn out to be independent of riding speed. The developed prototype of energy harvester was installed on a front port of a bicycle to use this ambient vibration and generated an average electrical power of 1.5 mW which is enough to support power for most of portable sensors and short range radio-frequency communication. Further study about isolation of vibration from a rider and conversion efficiency is ongoing. The developed energy harvester is expected to be a platform technology for sustainable portable power supply for various smart IT devices and applications.
Keywords
Bicycle dynamics; Accelerometer; Ambient vibration scavenging; Energy harvesting;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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