隧道照明智能监控软件系统的设计与实现

Design and Implementation of Intelligent Monitoring Software System for Tunnel Lighting

为了设计和实现"车进灯亮、车走灯暗"的隧道照明智能监控软件系统,采用车辆行为感知传感器、环境信息感知传感器、监控摄像机、调光控制器、LED照明灯具等设备为系统的硬件基础。软件系统以照明节能和智慧控制为目的;以隧道外部环境亮度、车流量和车辆速度为数据基础,根据隧道照明设计细则计算隧道内部各路段的所需亮度;以监控图像为基础,利用图像处理的方法,实时测量隧道内部路面的实际亮度;利用闭环反馈自适应调光方法根据隧道实际照明亮度和所需亮度对隧道亮度进行有效的调节;通过对路面均匀度的判断,确定隧道内灯具的好坏,从而实现快速维护。监控软件已在吉林省通化市赤柏隧道(右幅)投入使用,使用过程中选择车流量和天气情况都相似的3天,分别采用智能监控软件系统的方法、时间控制的方法和隧道内灯具全亮的方法对3种方法的耗电量进行比较。结果表明,该智能软件系统的方法在保证驾驶员安全舒适的前提下,相比于时间控制的方法节能超过40%;相比于灯具全亮的方法节能超过50%。

In order to design and implement a ＂vehicle enters,light brightens,vehicle leaves,light darkens＂ software system for tunnel lighting intelligent monitoring,vehicle behavior detection sensors,environmental information perception sensors,surveillance cameras,dimming controller,and LED luminaries are used as the hardware foundation of the system. The aim of software system is lighting energy-saving and intelligent control. The demand luminance of each tunnel zone is calculated according to the tunnel lighting design rule based on tunnel exterior environmental luminance,traffic volume and vehicle speed. The actual luminance of the pavement in each zone of the tunnel is measured through image processing. The method of adaptive closed-loop feedback luminance adjustment is adopted to effectively adjust tunnel lighting luminance on the basis of the actual and demand luminance in the tunnel. The status of tunnel luminaries（ work or does not work） can be determined by analyzing the overall uniformity of road surface luminance,and luminaries can be maintained timely. The monitoring software has been implemented in Chibai Tunnel（ right hole） in Tonghua City,Jilin Province. Three days with same traffic and weather conditions are selected during the implement to compare energy consumptions of the method of intelligent monitoring software system,sequential control method and the method of all luminaries lit on. The result shows that the method of intelligent software system control can save at least 40% energy compared to sequential control method and at least 50% energycompared to the method of all luminaries lit on besides it can also ensure drivers＇ safety and comfort.