城市智能交通信号控制系统

【作者】 赵凯；

【导师】 史忠科；

【作者基本信息】 西北工业大学 ， 控制理论与控制工程， 2001， 硕士

【摘要】 城市交通的拥挤和阻塞是迫切需要解决的社会问题，而交通枢杻的基本控制单元是信号机，论文详细介绍了XATM智能交通信号系统有关部分的研制工作。介绍的重点放在本人负责的主控电路、通讯电路、数据保护等电路。在此基础上还介绍了部分程序的设计思想。使用结果表明该系统能够实现多相位、变相序控制，能够解决混合交通流问题，并且使用和维护简单、方便。 论文中还在XATM智能信号控制系统的基础上编制了区域交通网络配时程序，该程序使用Tamura时延算法，这种算法能把泛函数最优化问题简化成参数最优化问题，避免了“维数灾”的问题，仿真结果表明该算法能在一定程度上疏散排队的车队长度。 目前XATM智能交通信号系统已通过了陕西省省级验收，并且已经在西安市推广使用。更多还原

【Abstract】 The congestion of urban traffic is a crucial problem to be solved, and the base unit of the traffic control is the traffic semaphore. The paper introduces some details of the XATM Intelligent Traffic Semaphore. The paper focuses on the kernel control circuit, communication circuit, DOG circuit and so on. Moreover, the design thought of some programs according to all the above is also introduced. The using outcome show that the system can realize multiphase and variable phase sequence control, can solve the problem of mixture traffic flow, can be used conveniently and would be maintained easily.In the paper, the Tamura Time Delay Algorithm is applied to the program of allocating the time of the traffic signal on the basis of the XATM Intelligent Traffic Semaphore. The algorithm can change the fonctionelle optimization problem to the variable optimization problem, reduce the dimension of the matrix and overcome the calculation difficulty. The result of simulation indicates the algorithm can dispersal the length of traffic queue.The XATM Intelligent Traffic Semaphore has passed the check and accept presided by Shaanxi Science & Technology Committee, and the use of it is being popularized in Xi’an.更多还原