基于Internet的分布式城市交通协同控制

Distributed Coordination Urban Traffic Control Based on Internet

研究了基于Internet的分布式城市交通协同控制系统模型,分析和规划了模型的组成结构;设计了以S3C44B0X为核心的嵌入式道路控制器,并通过外扩存储、通信、语音等模块,实现控制器的嵌入式模块化设计和软、硬件系统;最后分别在Linux和Windows系统平台下编写网络套接字,实现跨系统网络通信,对整个系统进行了集成和实现。试验结果表明修正的优化控制算法可将平均延误时间优化至10-3s,而且该控制器的软硬件系统运行稳定,性价比高、功能完善、可扩展性和通用性好。

An integrated frame of an Internet-based distributed coordination control system for urban traffic is built, and its elements is analyzed specifically; an embedded road controller using S3C44BOX is also designed, The modularized and embedded design for the controller over expanding some modules including memory, communication, sound and so on, is presented, Furthermore, the software and hardware of the system is accomplished. The Socket-based Internet communication is realized in Linux and Windows individually to achieve the integration of the whole system. The experimental result shows that the optimization algorithm for the average delayed time can be optimized to 10^-3 s. The hardware and software of the system run steadily with high cost and performance ratio, multi-function, good expansibility and popularization.