Intelligent substation HSR node forwarding method and device
A smart substation and node forwarding technology, applied in the direction of circuit devices, electrical components, data exchange through path configuration, etc., can solve the problems affecting the time when the transmitted message arrives at the destination node, and achieve the effect of improving the efficiency of message transmission
Active Publication Date: 2020-10-20
ELECTRIC POWER RES INST OF GUANGXI POWER GRID CO LTD +1
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Problems solved by technology
[0003] At present, the HSR ring network technology has been gradually applied to the relevant applications of smart substations; the received message is usually forwarded after receiving; when the message content is long and the number of nodes in the ring network is large, the arrival of the transmitted message will be greatly affected. destination node time
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[0046] see figure 1 , figure 1 It is a schematic flow chart of the HSR node forwarding method in the smart substation in the embodiment of the present invention.
[0047] Such as figure 1 As shown, a smart substation HSR node forwarding method based on matching filtering judgment, the method includes:
[0048] S11: Form a HSR ring network communication based on multiple DANH communication nodes;
[0049] In the specific implementation process of the present invention, the DANH communication node includes two transmission paths, clockwise and counterclockwise.
[0050] Further, the DANH communication node includes two data sending ports and two data receiving ports; wherein, the clockwise path includes a data sending port and a data receiving port, and the counterclockwise path includes a data sending port and a data receiving port.
[0051] Specifically, see figure 2 , figure 2 It is a schematic diagram of the structural composition of the HSR ring network communicati...
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The invention discloses an intelligent substation HSR node forwarding method and device based on matching filtering judgment, and the method comprises the steps: forming HSR looped network communication based on a plurality of DANH communication nodes; when a port in a certain DANH communication node receives the message, performing matching filtering judgment on the message; when it is judged that the message needs to be forwarded, generating a judgment effective mark, starting a message forwarding program, and forwarding the message; when a port in a certain DANH communication node receivesa message when sending data, subjecting the received message to CRC (Cyclic Redundancy Check) while the data of the DANH communication node is sent, and caching the message to a sending cache region after the check is completed; and forwarding the message in the sending cache region when the sending is idle based on the CRC result. In the embodiment of the invention, receiving and forwarding are realized at the same time through matching filtering judgment; coordination between forwarding and sending of the node is realized through the cache region.
Description
technical field [0001] The invention relates to the technical field of intelligent substation communication, in particular to a method and device for forwarding HSR nodes of an intelligent substation based on matching filtering judgment. Background technique [0002] HSR (High Availability Seamless Redundancy) protocol is a highly reliable industrial Ethernet transmission protocol; it realizes redundant data transmission through dual paths, and finally the network terminal selects the optimal data in real time to complete the seamless switching of data; due to its stable Reliable, it is gradually applied to the data transmission of the smart substation system; in the HSR ring network, the transmission message needs to pass through multiple intermediate nodes to reach the destination node. In order to reduce the transmission delay of the transmission message in the ring network, each DANH Nodes need to forward received messages in time; therefore, under this condition, it is ...
Claims
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IPC IPC(8): H04L12/42H04L29/06H04L29/08H04L1/00H02J13/00
CPCH04L12/42H04L69/22H04L1/0061H02J13/00028H04L67/568Y02E60/00Y04S10/16
Inventor 周柯王晓明林翔宇巫聪云李文伟周卫芦宇峰彭博雅
Owner ELECTRIC POWER RES INST OF GUANGXI POWER GRID CO LTD