摘要
随着我国列车速度的不断提高,为保证行车安全,对列车的速度、距离监测变得越来越重要。当前的列车测速测距方式,其测量精度受到技术本身的限制。文中提出将分布式光纤传感技术应用于高速铁路测速测距,具有实时性好、灵敏度高、室外无源、监测距离长等优势,可准确提供列车行驶速度、方向、位置等信息。
With the continuous improvement of train speed,in order to ensure the safety of driving,the monitoring of speed and distance of train is becoming increasingly important.According to the current methods of speed measurement,the precision is limited by the technology itself.In this article,the distributed optic-fiber sensing technology is applied to the speed and distance monitoring of high speed railway.This method has advantages of real time,high sensitivity,outdoor passive and long distance detection,and can provide accurate information of speed,direction and location,which has a good application foreground.
出处
《交通科技》
2018年第1期76-78,共3页
Transportation Science & Technology
关键词
分布式光纤传感
高速铁路
测速测距
distributed optic-fiber sensing
high speed railway
speed and distance measurement
