基于嵌入式计算机的激光雷达能见度仪的设计

摘要

针对不良能见度天气下的交通运输安全需求,设计了一台可用于水平及斜程能见度测量的激光雷达能见度仪.该仪器以嵌入式计算机PCM-3370E为控制和数据处理核心,实现对激光器、光子计数卡、门控电路工作时序的控制及能见度反演.在收发光学单元良好工作的基础上,通过易于操作的人机交互界面获得大气能见度的客观、便捷测量.%Aiming at the safety requirement for the traffic and transportation under bad visibility weather, a lidar visibility meter is designed to measure the horizontal and slant visibility. The meter adopts embedded computer PCM-3370E as the system core for control and data processing, to realize laser, photon counter and gating circuit timing control and visibility inversion. Based on good working of transmit/receive optical units, objective and convenient atmospheric visibility measurement can be achieved through an easy-going human-computer interface.