Time-Triggered Cut Through Method for Data Transmission in Distributed Real-Time Systems

摘要

The invention relates to a method for the periodic transport of real-time data in a distributed computer system, which computer system comprises node machines (100, 101, 102, 103), in particular a plurality of node machines (100, 101, 102, 103), and distributor units (121, 122), in particular a plurality of distributor units (121, 122), wherein the node machines (100, 101, 102, 103) and the distributor units (121, 122) have access to a global time, and wherein real-time data is transported by means of time-triggered real-time messages. It is provided that for at least one distributor unit (121, 122), preferably for all the distributor units (121, 122), through which a time-triggered real-time message is to be transported, attributes of this time-triggered real-time message are assigned a priori to a periodic time slot of the at least one distributor unit (121, 122), preferably to a respective time slot (121, 122) of each distributor unit (121, 122), in which periodic time slot or in which periodic time slots, this time-triggered real-time message is to be transported through the distributor unit (121, 122) or the distributor units (121, 122), and wherein, on the basis of attributes that are assigned a priori to this time slot and that are preferably stored in the distributor unit (121, 122), a message arriving in a periodic time slot in a distributor unit (121, 122) is forwarded, immediately after the beginning of the arrival of the message in the distributor unit (121, 12), to one or more output ports of the distributor unit (121, 122), which is/are specified in the attributes assigned to the time slot.