高速公路收费系统联网技术

结合目前我国高速公路通信传输网络的建设现状和收费系统数据通信的需求，从 结构、性能等方面分析了适应高速公路通信的3种网络技术SDH、ATM和宽带IP技术，以及这 3 种技术的综合集成模型ATM Over SDH、IP Over ATM、IP Over SDH、IP Over WDM。提出 比 较适合于高速公路收费系统联网的技术方案，并设计了网络通信管理和维护的具体内容 。

According to the development status of expressway communication net  work and the data transmission requirement for toll collection system, this pap e r analyzes in aspect of architecture and performance, the three network techno lo gy suitable for expressway communication: SDH, ATM and IP,  and their integra ted  model: ATM Over SDH, IP Over ATM, IP Over SDH, IP Over WDM. This peper achi eves  the ideal project for toll system in expressway, and design the content of  mana gement and maintenance for network communication.