控制高速公路收费岛头、路口等雾灯的显示状态，包括：闪烁、常亮-Control of highway toll Island, head, fog lights and other road junctions display status, including: flashing, constant light

基于非接触式IC卡的高速公路收费系统设计-Non-contact IC card based on the highway toll system

RS485 数据总线雷击过压防护 1． RS485 总线的应用领域 工业控制，DCS，数据采集系统 高速公路收费系统 过程控制及制造 电力系统采集与控制系统 远程终端互连-RS485 data bus lightning overvoltage protection 1. RS485 bus for industrial control applications, DCS, data acquisition system highway toll system proce