Using Track Vibrations To Power Railroad Devices
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About The Author

Lei Zuo, PhD is a mechanical engineering researcher Virginia Polytechnic Institute and State University.

                       

Using Track Vibrations To Power Railroad Devices

Riding along industrial developments, the railroad carries many peoples' lives and dreams. Various electrical devices are running constantly and anonymously, keeping rail networks operating safely, efficiently, and punctually. In the U.S. alone, the railroad network is over 183,000 miles, which accounts for more than 22% of worldwide rail length. Yet, many freight trains pull long hauls in remote areas without access to electricity and are running blindly. The need for an alternative track-side power supply is urgent; by harnessing energy from...

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Energy Harvesting Tiles Could Transform Footsteps Into Power

Harvesting energy from pedestrians could be used to power sensors in smart infrastructure, monitor structural health, and provide environmental sensing data. Energy harvesting tiles have potential applications in high-volume pedestrian paths and areas, such as sporting arenas, airports, railway stations, shopping malls, offices, and apartment blocks. However, most of the current research on energy harvesting tiles focus on micro-watts or nano-watts level. State of the art electromagnetic energy harvesting tiles have low energy harvesting efficiency. They also have too large...

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