高速公路隧道紧急电话及广播系统优化技术研究

Research on Optimization Technology of Emergency Telephone and Broadcast System in Expressway Tunnel

文章阐述了传统光纤型紧急电话及广播系统的组网方式及构成以及存在的弊端和缺陷,提出采用基于 EPON 组网技术的紧急电话系统技术改进方案,并分析了采用这种组网方式的优点。目前,该技术改进方案已经在宝天高速(陕西段)隧道投入运行,系统运行稳定可靠,可为今后的紧急电话系统设计和施工提供参考。

This article describes the networking mode and composition of traditional optical-fiber emergency telephone and broadcasting system as well as the shortcomings and defects of traditional optical-fiber emergency telephone system,proposes an emergency telephone system technology improvement plan based on EPON networking technology,and analyzes the advantage of adopting this networking method.At present,this technical improvement program has been put into operation in Baotian Expressway(Shaanxi Section)tunnel,and the system operation is stable and reliable,which can provide reference for the design and construction of future emergency telephone systems.