摘要
时间触发以太网(TTEthernet)在传统以太网基础上增加了时间触发服务,采用高精确的时间同步核心技术,建立并维护全局统一时钟,为安全关键系统提供了确定性的通信平台。依据设备在时间同步过程中发挥的不同作用,TTE网络设备可划分为同步主设备、同步客户端设备及同步聚合设备,通常交换机作为同步聚合设备,而端系统则作为同步主设备及同步客户端设备。通过分析TTE网络的时间同步流程和端系统同步组件一体化体系结构,提出一种端系统中主客一体化的同步组件设计方法,为构建安全关键系统网络提供了实现思路。
The time-triggered Ethernet（ TTE） adds time-triggering services based on the traditional Ethernet. TTE sets up and maintains a global uniform clock with the core technology of high precision time synchronisation,and builds a determinate communication platform for safety critical system. According to the different roles they played in time synchronisation process,the TTE devices can be sorted in three types： the synchronisation master,the synchronisation client,and the compression master. Usually the switch is configured as compression master,and the end system is configured as synchronisation master or synchronisation client. In this paper we propose a design approach for synchronisation modules in end system with integrative master and client by analysing the time synchronisation procedure of TTE and the integrative architecture of synchronisation modules in end system,which provides the implementation idea for constructing the safety critical network.
出处
《计算机应用与软件》
CSCD
2015年第3期105-107,112,共4页
Computer Applications and Software
基金
航空科学基金项目(20111951)
关键词
时间触发以太网
时间同步
同步主设备
同步客户端
Time-triggered Ethernet Time synchronisation Synchronisation master Synchronisation client
