铁路信号安全计算机平台镜像远程更新软件设计与实现  

Design and Implementation of Remote Image Updating Software in Security Computer Platform for Railway Signalling

作　　者：耿佳灿 耿进龙 赵丽萍 张立鹏 Geng Jiacan;Geng Jinlong;Zhao Liping;Zhang Lipeng

机构地区：[1]卡斯柯信号有限公司,上海200071

出　　处：《铁道通信信号》2020年第8期48-51,共4页Railway Signalling & Communication

摘　　要：在安全计算机平台中,设计安全可靠的镜像远程在线更新软件,采用可变端口号TFTP协议,实现了下位机通信单元的远程通信和并行转发;结合IAP编程技术以及模式切换、内存缓冲、CRC校验等,实现了目标机板卡的镜像在线更新.目前具备该远程更新功能的安全计算机平台已在实际产品中得到验证和应用,更新速度快且便捷可靠.A secure and reliable remote image updating software of the security computer platform is designed and implemented.Variable port TFTP protocol is adopted to realize the remote communication and parallel forwarding of the communication unit.In combination with IAP technology,mode switching,memory buffer,CRC verification,etc.,online image updating of the target board is realized.The software has been applied and verified in practical products and proven convenient and reliable,greatly improving the speed of image updating.

关 键 词：远程更新 安全计算机平台 简单文件传输协议 在应用编程技术 

分 类 号：U284[交通运输工程—交通信息工程及控制]