AFDX端系统本地时间作为端系统本地时钟计时数据, 可用于计算发送端系统和接收端系统之间的数据帧传输时延, 从而进行传输数据帧的时间完整性验证。若端系统本地时间丢失, 则无法进行数据时间完整性的验证。在当前AFDX网络健康管理以及时间同步相关设计的基础上, 提出了一种基于时间戳列表的本地时间恢复方案。经验证, 可实现端系统本地时间的恢复, 进一步保障了AFDX网络中传输数据的时间完整性验证, 提升了传输数据的可靠性。

As the timing data of local clock of the end system, the local time of the AFDX end system can be used to calculate the transmission delay of data frame between the transmitting end system and the receiving end system, thereby performing the verification of time integrity of the transmitted data frame.If the local time of the end system is lost, the verification of time integrity of the data cannot be performed.Based on the current health management of AFDX network and the design of time synchronization, a scheme of local time recovery based on the time stamp list is proposed.It has been verified that the recovery of local time of the end system can be realized, which can further ensure the verification of time integrity of the transmitted data in AFDX network and improve the reliability of the transmitted data.