基于靶标视距的高速公路隧道照明智能控制方法  

Intelligent Control Method for Highway Tunnel Lighting based on Sight Distance of Target

作　　者：代东林 DAI Dong-lin(China Merchants Chongqing Highway Engineering Testing Center Co.Ltd.,Chongqing 400067,China)

机构地区：[1]招商局重庆公路工程检测中心有限公司,重庆市400067

出　　处：《公路》2024年第11期274-279,共6页Highway

基　　金：重庆市社会事业与民生保障科技创新专项重点研发项目,项目编号cstc2017shms-zdyfX000。

摘　　要：隧道入口段亮度会直接影响驾驶人行车感受,采取传统的时序控制方式会带来大量能耗浪费。为降低隧道照明能耗并保障行车安全,探究一种隧道智能控制方法,搭建起由圆形靶标、工业相机、专用计算机和调光控制器组成的隧道照明控制硬件平台。以满足最小停车视距为原则,选取洞外光环境、标靶内部灰度值、边缘梯度均值、外围灰度方差以及靶标距离为输入参数,利用SVR算法构建靶标可视认度计算模型实现隧道入口段自适应调光控制。该方法已在重庆万云高速张家山隧道投入使用,并针对隧道特点提出了不同靶标可视距离下的调光控制策略。结果表明:与原有的时序控制策略相比,基于靶标视距的控制方法能在确保隧道行车安全的前提下,降低10.5%的能耗。将其应用于隧道入口段的照明控制,可以在满足交通安全的前提下实现照明节能的要求,为隧道照明调光控制提供了关键技术支撑。The brightness of the entrance section of tunnels will directly affect the feeling of drivers,and the traditional timing control method consumes a lot of energy.In order to reduce the energy consumption of tunnel lighting and ensure driving safety,a tunnel intelligent control method is explored,and a tunnel lighting dimming hardware platform is built,which is composed of a circular target,industrial camera,particular computer,and dimming controller.In order to meet the principle of minimum stopping sight distance,the light environment outside the hole,the internal gray value of the target,the mean value of edge gradient,the peripheral gray variance,and the distance of the target are selected as input parameters,and the target visual recognition calculation model is constructed by using SVR algorithm to realize adaptive dimming at the entrance of the tunnel.This method has been put into use in the Zhangjiashan Tunnel of Chongqing Wanzhou-Yunyang Expressway,and the dimming control strategy under different target visual distances is proposed according to the characteristics of the tunnel.The results show that,compared with the original timing control strategy,the control method based on sight distance of target can reduce energy consumption by 10.5%to ensure tunnel driving safety.When applied to the lighting control of the tunnel entrance section,it can achieve the lighting energy-saving requirements for traffic safety and provide key technical support for tunnel lighting dimming control.

关 键 词：隧道工程 隧道照明 智能控制 靶标视距 图像处理 SVR 

分 类 号：U453.7[建筑科学—桥梁与隧道工程]