货车故障及车辆超限图像检测系统设计  

Design of Image Detection System for Truck Fault and Vehicle Overrun

作　　者：王向宏 徐福元[2] WANG Xiang-hong;XU Fu-yuan(Shenhua Railway Equipment Co.,Ltd.,Cangzhou 061113 China;Beijing Jingtianwei Technology Development Co.,Ltd.,Beijing 100085 China)

机构地区：[1]神华铁路装备有限责任公司,河北沧州061113 [2]北京京天威科技发展有限公司,北京100085

出　　处：《自动化技术与应用》2023年第12期62-66,共5页Techniques of Automation and Applications

摘　　要：为提高货车的自动化检测水平,达到安全运输目的,设计货车故障以及车辆图像检测系统,提升故障及超限检测效果。以CMOS图像传感器为高速摄像装置,采集货车全方位图像,输出图像至检测分析中心,通过图像合法区域提取、无关图像信息提出后,分别比较面积比、拟合外包络线斜率与阈值大小检测货车故障;通过在超限信息、车号及车序间建立关联性,通过图形方式呈现各车辆的超限图像检测结果。实验结果表明:该系统可通过采集图像速度补偿,显著提升图像视觉效果,可检测超限区域,可精准检测车辆故障。In order to improve the automatic detection level of freight cars and achieve the purpose of safe transportation,a freight car image detection system is designed to improve the effect of fault and overrun detection.The CMOS image sensor is used as a high-speed camera to collect the omni-directional image of the truck and output the image to the detection and analysis center.Af-ter extracting the legal area of the image and putting forward the irrelevant image information,the area ratio,the slope of the fit-ting outer envelope and the threshold value are compared respectively to detect the fault of the truck;By establishing correlation among overrun information,vehicle number and vehicle sequence,the overrun image detection results of each vehicle are present-ed graphically.The experimental results show that the system can significantly improve the image visual effect through image ac-quisition speed compensation;It can detect out of gauge areas and accurately detect vehicle faults.

关 键 词：车辆图像检测 传感器 超限检测 故障检测 测量光幕 

分 类 号：TP274[自动化与计算机技术—检测技术与自动化装置] TP391.41[自动化与计算机技术—控制科学与工程]