基于TCP/IP协议的智能交通信号机的远程通信设计与实现

设计并实现了基于以太网控制器ENC28J60的具有TCP／IP通信功能的智能交通信号机，重点介绍了系统以太网通信接口硬件设计以及TCP／IP通信的软件实现方法；在实验室环境下，通过集线器将信号机和上位计算机组网，正确设置各项网络参数，信号机能够实时发送路口交通方案信息给上位计算机并在计算机监控界面显示，同时计算机可对现行交通方案进行修改，然后下传给路口信号机，改善交通流量控制；实验结果表明，在长时间、高频率的通讯过程中。系统运行性能良好，稳定可靠。

Design & Implementation of Long_ Distance Communication of Intelligent Traffic Signal Machine Based on TCP/IP Protocol

The intelligent traffic signal machine, realizing the function of TCP/IP communications and basing on Ethernet Controller ENC28J60, is designed out. This paper discusses in detail about hardware design of Ethernet communication interface of the system and the software realization of TCP/IP protocol. Under the lab environment, the signal machine connecting with the upper computer by the huh and by setting correctly the network parameter, can transmit the real time traffic data to the upper computer, the upper computer can modify and transmit the traffic data to the signal machine, improving the efficiency of the traffic control. The experiment result proves that the system run steadily in the long-playing and high frequency communication