Intelligent video surveillance for checking attendance of traffic controllers in level crossing

This paper proposes a detecting and tracking scheme for automatic checking attendance of traffic controllers in level crossing by recognizing their warning waistcoats. Considering of the actual requirement of rapidity and validity, this paper employs techniques of motion detection, color segmentation and feature matching to deal with the challenging problems of illumination varying, light reflection and disturbance. Therefore, the task of distinguishing the target from candidates can be fulfilled accurately. Once a target being detected, the established color models are modified through learning color of the detected target, and then Cam-shift algorithm is employed to track this target smoothly. The experiments in real scenes demonstrate that this method has a great capability to detect and track traffic controllers in complex level crossing environment accurately, and the comparisons further demonstrate the validity of the proposed method.     

高速公路紧急事件管理系统实施效果评价

阐述了高速公路紧急事件管理系统实施效果评价的含义和意义.在分析系统结构特点及影响其实施效果的各因素的基础上,给出了评价指标体系,并应用模糊数学理论建立了既全面考虑又兼顾重点的系统实施效果模糊综合评价模型.该模型应用集值统计法确定评价指标集,采用三角形隶属度函数,得到实施效果评价矩阵;通过层次分析法确定多层指标权重.算例中对北京某高速公路紧急事件管理系统实施效果评价的计算结果为77.21,实施效果综合评价结论为"较好",与实际相符,这说明方法可综合项目专家的模糊评价信息,能对系统实施效果做出合理的评价.     

基坑工程综合试验平台的研究

基坑试验平台是由五个子系统组成的复杂系统,其主要功能是进行基坑工程、边坡加固工程的物理模拟试验。在试验中充分考虑水-土-结构之间的相互作用,提供多物理量实时监测,为理论分析、计算和工程评价提供基础数据,可实现基坑物理模拟,为设计、施工给予前期建议;同时,也为后期研究提供平台和技术手段。