【作者】 许平； 田红旗； 姚曙光；

【Author】 Xu Ping, tian Hongqi, Yao shuguang (Key Laboratory of Train Safety, Central South University, Changsha 410075, China)

【机构】 中南大学高速列车安全实验室；

【摘要】 针对传统的模板匹配技术的不足,采用变模板匹配技术,开发了列车部件撞击序列图像运动分析软件。软件不仅能在匹配过程中对撞击标识点进行特征识别,在搜索区域上进行运动方向和运动速度的预测,而且能通过鼠标动态选择目标,得到目标的动态变形、残余变形等数据,并计算出目标的速度、加速度,然后用曲线、图表、数据等多种形式输出。软件分析结果与数值模拟计算对比,变形时刻基本相同,变形长度相差2.62%;与地面测速系统相比,碰撞初始速度相差1.52%,能满足试验分析的要求。更多还原

【Abstract】 Aimed at insufficiency of traditional template matching technique kinematic analysis software of image sequence of train component crash was developed adopted alterable template matching technique. In the matching course the software can not only recognize characteristic of crash sign point and dope out kinematic orientation and velocity in the searched area, but also select object dynamically by mouse and obtain its dynamic deformation and remains deformation then work out object’s velocity and acceleration which were exported by many forms such as curve, table and data and so on. Compared with the numerical simulating calculation, the result of software analysis has the basic same deformation time point but a different deformation length of 2.62%; and compared with the ground velocity-testing system, the result has 1.52%difference in initial crash velocity. Then it can meet the requirement for the test analysis.更多还原