基于超声扩频技术的井下机车防撞系统研究

Research on Underground Locomotive Anti-collision System Based on Spread Spectrum Technology and Ultrasonic Distance Measurement

针对井下机车相撞、追尾等运输事故,利用超声测距受井下粉尘、空气潮湿等环境因素影响较小的特点,采用扩频技术提高测距范围和测量分辨率,同时增强测距抗干扰能力,详细介绍了基于该技术的井下机车防撞系统结构、工作原理以及关键参数选取等。

The primary purpose is to avoid the head-on and rear-end collisions of underground locomotives. An anti-collision system based spread spectrum technology and ultrasonic distance measurement is presented. Uhrasonie distance measurement will barely be affected by the moist and dusty underground environments. Moreover the measurement range, resolution and anti-interference performance are increased. The system structure, theory and key parameter are given detailedly.