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当今中国铁路正在向高速化、智能化方向发展,在此过程中对数据通信平台的实时性、安全性、可靠性提出了更高的要求。由于高速铁路具有站间距扩大、传输信息量提高、信号安全设备数量增多等特点,所以在系统中必须采用高可靠性的数据通信平台来满足这些要求。文章研究由高安全性、可靠性数据交换设备组成双环冗余通道作为高速铁路信号系统数据通信平台,并提出具体的设计及实施方案。
Nowadays, the Chinese railway is developing towards high-speed and intelligent direction. In this process, the real-time, safety and reliability of the data communication platform are put forward higher requirements. Because of the characteristics of high-speed railway, such as the expansion of station spacing, the increase of transmission information amount and the increase of signal safety equipment, high-reliability data communication platform must be adopted in the system to meet these requirements. This paper studies the dual-ring redundancy channel composed of high-security and reliability data exchange equipment as the data communication platform of high-speed railway signal system and proposes the specific design and implementation plan.