| 摘要 |
The invention relates to a method for monitoring the state of a device in a communications network consisting at least of two devices, isochronous communications channels which transmit synchronised data packets by means of a signal emitted by the network in uniform time intervals. The inventive method consists in emitting data packets by a monitorable device through a specified isochronous channel in response to a signal regularly emitted by the network for the first monitorable device, monitoring the emission of the data packets by said synchronous channel for the second device and carrying out a specified task consecutively to the absence of the data packets on the isochronous channel between two emissions of synchronisation signals. A device for carrying out said method is also disclosed.
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