双光纤环冗余PROFIBUS-DP在公路隧道监控系统中的应用

Application of Double Optical Fiber Links Redundant PROFIBUS-DP in TMCS of Highway

介绍了 PRO FIBU S现场总线技术及其协议结构、总线存取协议 ,分析了公路隧道机电系统监控的必要性与传统隧道监控系统存在的弊端 ,提出了基于 PROFIBU S

The technology,protocol structure and Bus access protocol of PROFIBUS are introduced in this paper. The necessity of TMCS and the limitations of traditional TMCS are also analyzed. Hence the authors put forward the TMCS based on PROFIBUSDP fieldbus technology.