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高速数据总线（ＨｉｇｈＳｐｅｅｄＤａｔａＢｕｓ，ＨＳＤＢ）是新一代航空电子系统的数据总线，ＨＳＤＢ网络实际上是基于线性令牌总线的一个专用计算机局域网，在网络上负载较重且时间非苛刻的消息到达是一般过程的条件下分别讨论了网络的局域和全域稳定性，并导出了保证整个网络稳定的令牌握有定时器最小值，同时给出了如何根据应用去调整得到的理论值．
High Speed Data Bus (HSDB) is the data bus of the new generation of avionics system. The HSDB network is actually a special computer LAN based on linear token bus. The heavy load and non-critical message arrivals on the network are normal processes , We discuss the local and global stability of the network separately and derive the minimum value of the token holding timer to ensure the stability of the entire network. At the same time, we give the theoretical value of how to adjust the obtained value according to the application.