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

A technology of message transmission and three-network integration, which is applied in the field of real-time scheduling of message transmission in process layer three-network integration, which can solve problems such as inability to guarantee real-time transmission of messages

Inactive Publication Date: 2014-03-26
XJ ELECTRIC +1
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  • Application Information

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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

Method used

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

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Embodiment Construction

[0030] The present invention will be further introduced below in conjunction with the accompanying drawings and specific embodiments.

[0031] like figure 1 Shown is the real-time scheduling system for message transmission of the process layer three-network integration of the present invention, where the master refers to the equipment at the interval layer, and the slave refers to the device at the process layer. A transmission scheduling module is deployed on each network interface of the system to control the message transmission of each network respectively according to the message transmission time node table; a network monitoring module is deployed to be responsible for the communication between the master and the slave and monitor the operation of the slave , the slave sends the heartbeat message of the slave at regular intervals; the time merge module is deployed on the master, which is responsible for calculating the transmission time of the message and the transmissio...

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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...

Claims

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Application Information

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IPC IPC(8): H04L29/06H04J3/06
Inventor 段太钢吴双惠伍旭刚陈玉峰胡叶宾樊鹏孙航飞沈沉蒋怀贞高建坤窦中山
Owner XJ ELECTRIC
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