Process layer tri-play message transport real-time scheduling method

Abstract

The invention discloses a process layer tri-play message transport real-time scheduling method. The method includes the steps: slaves transmit time merging requests containing message feature information to a master; the master generates a message transport time node table according to the message transport feature data transmitted by all slaves, enters a mode of merging ready, and informs the slaves of time merging update information; the slaves update their message transport time node tables according to the time merging update information transmitted by the master; the master and the slaves both control message transport according to the same message transport time node tables. According to the method, the master is used to collect and analyze message transport feature data of all slaves in a network, message transport scheduling information, the message transport time node table, of the whole network is generated, the problem of possible message transport conflicts is prevented accordingly, and network delay stability, SV message uniformity and GOOSE message real-time transport are maximally increased.

Description

technical field [0001] The invention belongs to the technical field of process layer network communication, and in particular relates to a method for real-time dispatching of process layer three-network-in-one message transmission. Background technique [0002] With the popularization and application of the IEC61850 standard in digital substations, there are currently three networking models in the process layer network: direct mining and jumping, networking and triple play. Compared with the networking method of direct mining and direct jumping, the interval switch is omitted, and the merging unit and the intelligent device are directly connected to the equipment at the bay layer through optical fibers. This networking method requires the equipment at the bay layer to provide multiple optical fiber interfaces; , the bay layer equipment is connected to the process layer equipment through a switch, and the SV network, GOOSE network, and time synchronization network are divide...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a real-time scheduling method for message transmission of the three-network integration at the process layer, so as to solve the problem that the existing method cannot guarantee the real-time transmission of the message of the entire network

Images