基于TCP协议的通信控制单元设计方案研究  

Design of TCP Based Communication Control Unit

作　　者：孙英晖[1] 石潇竹[1] 

机构地区：[1]中国电子科技集团公司第二十八研究所,南京210007

出　　处：《指挥信息系统与技术》2010年第3期58-61,共4页Command Information System and Technology

摘　　要：介绍了一种基于TCP协议的通信控制单元(CCU)双主控板(MPU)双网口热备份设计方案,采用Linux平台下的套接字编程、I/O口复用技术,通过轮询机制查询描述字集数组,完成CCU与系统管理终端,CCU与电台的双向数据交互,同时MPU板能够响应来自软件和硬件的主备板切换功能,实现系统运行过程中的无缝切换。This paper introduces a design of TCP based communication control unit. With the master/ slave MPUs operating in hot standby state, the design adopts socket programming and I/O multiplexing technology under Linux. By polling descriptor array, bidirectional data interaction can be achieved between CCU and system management terminal, as well as CCU and radio. MPU board can respond to master/slave switch command during run time without any effect on the running system.

关 键 词：TCP协议 MPU主备 套接字 描述字集数组 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]