Abstract:
Time triggered Ethernet (TTE) has been widely recognized and promoted in the aerospace industry in recent years due to its strong real-time, high reliability, large bandwidth, and long-distance advantages. However, in practical use, TTE networks have problems such as complex and error prone scheduling, single configuration methods and difficult modification, and inconvenient management of a large number of network nodes. A visual TTE network planning and configuration software based on QT is designd. Through this software, user requirements are interactively inputted to generate the entire network topology and schedule the entire network links. The software uses CS architecture to uniformly configure and manage all network nodes, and monitors network node communication in real-time during the communication process. Test verification shows that the TTE network planning and configuration software can achieve efficient design, online configuration management, and network monitoring of TTE networks. The constraint based incremental scheduling method proposed in this article improves efficiency by 24.4% compared to traditional SMT methods in solving network link scheduling tables.