关键词：时间同步系统；分布式；IEEE 1588；最佳主时钟算法
摘 要：In this paper, we present the concept of approximate synchrony, a modeling and verification abstraction for time-synchronized systems. Approximate synchrony is a sound and tunable abstraction. We have implemented approximate synchrony as a part of a model checker and used it to verify the Best Master Clock (BMC) algorithm, the core component of IEEE 1588 precision time protocol and the time-synchronized channel hopping protocol that is part of the IEEE 802.15.4e standard.