交通视频中车辆荷载空间位置二次判定及荷载校验

Secondary identification of vehicle load space location on traffic video and load analysis

车辆荷载是影响桥梁使用过程中安全性能的主要荷载之一,在健康监测系统中结合动态称重技术可识别车辆荷载,判断车辆在桥梁上的位置、速度,从而计算车辆荷载对桥梁产生的影响。由于称重技术的定点性,给出的判断只能是预估值,通过将其与桥梁上视频监控技术相结合,以图像识别方式对车辆在桥梁上的位置进行二次判定,经过匹配后较为准确地找出车辆的对应空间位置,从而为桥梁健康监测系统车辆荷载分析提供技术支持。

Vehicle load is one of the main loads that affect the safety performance of bridges in use.In the health monitoring system,combined with dynamic weighing technology,the corresponding vehicle load can be identified,and the position and speed of vehicles on the bridge can be judged,so as to calculate the impact of vehicle load on the bridge.Due to fixed point of the weighing technology,however,gives judgment can be estimated,with its bridges on other video monitoring technology,the combination of image recognition way for secondary to the position of the vehicles on the bridge,after match more accurately find out the corresponding position of the vehicle,to vehicle load analysis of bridge health monitoring system to provide technical support.