运用于京沪高铁动车组WTD技术中的加密算法与运行保障机制

Encryption and operating safeguard mechanisms of WTD technology used in Beijing-Shanghai high-speed railway

WTD技术(车载无线传输网关技术)通过利用随车配置的WTD设备与动车组之间的通信,对车辆的实时信息进行采集、处理和发送,使得在地面接收端的信息处理系统能够有效的监控与管理动车组.对应用于京沪高铁WTD技术的通信安全与通信保障的需求变得迫切.本文通过引入Blowfish加密算法与特殊设计的运行保障机制,使得改进后的WTD技术不仅能够进行安全的通信,并能够提供长时间的高效稳定的数据传输服务.

WTD technology（Wireless Transformation Device Technology） can collect,process and send real-time information of CRH EMU through communication between equipped WTD and CRH EMU,which make ground information system monitor and manage those CRH trains efficiently.For WTE technology in Beijing-Shanghai high-speed railway,it is urgent to consider the need of security communication and operating safeguard.In this paper,by introducing Blowfish encryption algorithm and specifically designed operating safeguard mechanisms,it proves that such advancements can not only guarantee the security communication of WTD,but also provide steady and robust data transmission.