Method of operating a data bus system with transmitter stations

摘要

A method of operating a data bus system, the data bus system comprising a plurality of stations 10-15, including at least two transmitter stations 11, 12, 15, each transmitter station 11, 12, 15 being switchable to an active mode in which the relevant transmitter station 11, 12, 15 digitally transmits a respective data stream, bus means 17, 18a, 18b which interconnect the stations 10-15 of said plurality, resource control means 11 for controlling which transmitter stations 11, 12, 15 simultaneously operate in the active mode. The method comprises: the resource control means 11 guaranteeing that a sum of the specific transmission capacities required for the own data streams of the transmitter stations 11, 12, 15 simultaneously operating in the active mode does not exceed the available transmission capacity of the bus means 17, 18a, 18b, at least one of the transmitter stations 11, 12, 15 enabling the reading out, via the bus means 17, 18a, 18b, of a code 35 representing the specific transmission capacity required for the own data stream of said at least one transmitter station 11, 12, 15, performing a station-dependent calculation in which the overhead required for said at least one transmitter station 11, 12, 15 is taken into account, and the resource control means 11 basing the guarantee on the station-dependent calculation performed.