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首页> 外文会议>Conference on Active and passive smart structures and integrated systems; 20090309-12; San Diego, CA(US) >Power Harvesting for Railroad Track Safety Enhancement using Vertical Track Displacement
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Power Harvesting for Railroad Track Safety Enhancement using Vertical Track Displacement

机译：使用垂直轨道位移来收集功率以增强铁轨安全

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摘要

A significant portion of railroad infrastructure exists in areas that are relatively remote. Railroad crossings in these areas are typically only marked with reflective signage and do not have warning light systems or crossbars due to the cost of electrical infrastructure. Distributed sensor networks used for railroad track health monitoring applications would be useful in these areas, but the same limitation regarding electrical infrastructure exists. This motivates the search for a long-term, low-maintenance power supply solution for remote railroad deployment. This paper describes the development of a mechanical device for harvesting mechanical power from passing railcar traffic that can be used to supply electrical power to warning light systems at crossings and to remote networks of sensors via rechargeable batteries. The device is mounted to and spans two rail ties such that it directly harnesses the vertical displacement of the rail and attached ties and translates the linear motion into rotational motion. The rotational motion is amplified and mechanically rectified to rotate a PMDC generator that charges a system of batteries. A prototype was built and tested in a laboratory setting for verifying functionality of the design. Results indicate power production capabilities on the order of 10 W per device in its current form. This is sufficient for illuminating high-efficiency LED lights at a railroad crossing or for powering track-health sensor networks.
机译：铁路基础设施的很大一部分存在于相对偏远的地区。由于电气基础设施的成本，这些区域的铁路道口通常仅标有反光标牌，并且没有警示灯系统或横梁。在这些领域中，用于铁路运行状况监视应用程序的分布式传感器网络将很有用，但在电气基础设施方面也存在相同的限制。这促使人们寻求用于远程铁路部署的长期，低维护的电源解决方案。本文描述了一种机械设备的开发，该机械设备用于从经过的有轨电车交通中获取机械动力，该机械动力可用于为交叉口的警示灯系统和可充电电池向传感器的远程网络供电。该设备安装在两个轨道枕上并跨越两个轨道枕，从而可以直接利用轨道和连接枕的垂直位移，并将线性运动转换为旋转运动。旋转运动被放大并进行机械校正，以旋转为电池系统充电的PMDC发电机。在实验室环境中构建并测试了原型，以验证设计的功能。结果表明，以当前形式，每台设备的功率生产能力约为10W。这足以在铁路道口照亮高效LED灯或为轨道健康传感器网络供电。

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