基于光纤传感的车辆行驶信息采集系统

Vehicle information Acquisition System Based on Optical Fiber Sensing

根据光纤法珀干涉原理,结合分布式光纤传感(DFOS)的原理及特点,提出的一种新型的基于光纤传感的车辆行驶信息采集系统。相比压电薄膜传感器方法,分布式光纤传感方法具有响应速度快,灵敏度高的特点,由于光纤具有很低的信号传输损耗,传感信号可以传输得很远。分布式光纤传感交通车辆信息检测系统易于和光纤通信网络融合,可实现大范围的信息集成统计。

A new kind of vehicle information acquisition system has been designed in this paper,which accords to the fiber optic Fabry Perot interferometer.The system based on Optical Fiber Sensing compare with Piezo electric sensor have the advan-tages of fast response,more sensitive,and because of the lower transmission loss the message could be transfer far.DFOS is conveniently fusion of optical fiber communication network information.