引 言 ·························· 3
1. 交通信号灯的产生 ·················· 3
1.1 交通信号灯的产生 ··················· 3
1.2 智能交通系统的发展趋势 ················ 4
2. 智能交通灯的硬件设计 ·················· 5
2.1 硬件器件的简介 ( 三菱 FX2N-32MT型 PLC) ········· 5
2.2 HEF4511BP芯片和七段数码管 ······ 错误!未定义书签。
3.硬件的设计 ······················· 9
3.2 PLC的 1/0 点地址分配 ················· 9
3.3 硬件电路的连接 ···················· 10
4智能交通灯的软件设计 ·············