摘要
能见度是影响高速公路交通安全的重要因素,低能见度天气,特别是具有突发性和随机性的团雾极易引起交通事故,对高速公路沿线能见度进行实时检测和预警是保证交通安全的重要措施。前向散射式能见度仪具有体积小、成本低,便于安装等特点,适用于高速公路沿线能见度检测。针对高速公路低能见度检测需要,设计了基于FIR滤波器的能见度检测系统,系统主要由发射器、接收器、控制处理器和上位机组成。系统以低成本、高效率为设计目标,设计出的样机经过测试达到高速公路沿线能见度测量范围和精度的要求。
Visibility is an important factor affecting highway safety, low-visibility weather, especially when there is agglomerate fog which appears suddenly and randomly, causes traffic accidents frequently, real-time detection of visibility on the highway and early warning is an important measure to ensure traffic safety. Forward scattering-type visibility detector has many excellence including small size, low cost and easy to install and so on, it is suitable for highway visibility detection. A new highway visibility detecting system based on FIR filter is proposed,it consists of transmitter, receiver, control processor and PC component. Low-cost, high efficiency is the design goals of system, the pattern has been tested to achieve highway visibility measurement rang and accuracy requirements.
出处
《计算机技术与发展》
2011年第1期242-245,共4页
Computer Technology and Development
