METHOD AND DEVICE FOR FAULT-TOLERANT, TIME-CONTROLLED REAL-TIME COMMUNICATION

摘要

The aim of the invention is to establish a fault-tolerant global time in a fault-tolerant communication system of a distributed real-time system. For this purpose, a fault-tolerant message-conveying unit (200) is presented, which comprises four independent conveying units (211, 212, 213, 214). Said four independent conveying units (211, 212, 213, 214) together establish a fault-tolerant time. The end systems (221, 222) are connected to a fault-tolerant message-conveying unit (200) by means of two independent fail-silent communication channels (251, 252, 253, 254) so that the clock synchronization and the network connections are maintained even if a part of the fault-tolerant unit (200) or a communication channel fails.