电子不停车收费系统车载单元设计

The design of electronic toll collection vehicle unit

本文基于电子不停车收费系统(ETC),提出了一种车载单元设计方案,并设计了电子不停车收费系统车载单元的软件和硬件部分。其中,硬件部分以STC单片机为核心,通过扩展的IC卡接口和射频接口等设备完成系统的各项功能;软件部分完成了车载单元与路侧单元的通信,并使车载单元可以通过LCD与用户交互。由此可见,以单片机为核心开发ETC车载单元是完全可行的。

This paper presents a design for the vehicle unit of Electronic Toll Collection （ETC） system, and designs the software and hardware of ETC-vehicle unit. Among them, the core of the hardware is STC MCU, it accomplishes system functionality through the expanded IC card reader interface and the RF interface and other equipments; software accomplishes the communication between ETC-vehicle and Road Side Unit, and interacts with the user via the LCD. Thus, developing ETC-vehicle with MCU core is entirely feasible.