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Method for optimizing multiple-network-interface transmission of message of intelligent substation

A technology of intelligent substation and optimization method, applied in electrical components, data exchange networks, digital transmission systems, etc., can solve the problems of wasting communication bus bandwidth and reducing transmission efficiency, saving the process of repeatedly transporting the same data, and simplifying the development process. , the effect of reducing the difficulty of development

Active Publication Date: 2015-03-25
BEIJING SIFANG JIBAO AUTOMATION +1
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Problems solved by technology

This approach is equivalent to repeatedly sending the same original data to be sent multiple times, which greatly wastes the bandwidth of the communication bus between the CPU and the FPGA and reduces the transmission efficiency.

Method used

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  • Method for optimizing multiple-network-interface transmission of message of intelligent substation
  • Method for optimizing multiple-network-interface transmission of message of intelligent substation
  • Method for optimizing multiple-network-interface transmission of message of intelligent substation

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Embodiment Construction

[0027] The technical solution of the present invention will be described in further detail below in conjunction with the accompanying drawings.

[0028] Such as image 3 As shown, this application discloses a multi-network port transmission optimization method for smart substation messages, and the smart substation Ethernet communication adopts a hardware architecture jointly controlled by CPU and FPGA (see attached figure 1 As shown), the CPU is responsible for controlling the multi-packet messages to be sent, and then sends them to the FPGA. After receiving the message data, the FPGA parses out the MAC port to which each packet belongs, and then distributes different messages to different MAC ports. Port, wherein, CPU mainly does data processing, and FPGA is responsible for interface operation and sending and receiving data; Described method comprises the following steps:

[0029] (1) The CPU configures the source MAC address of each network port to the FPGA;

[0030] Ethe...

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Abstract

The invention relates to a method for optimizing multiple-network-interface transmission of a message of an intelligent substation. The method comprises the following steps: configuring a source MAC (media access control) address of each network interface to an FPGA (field programmable gate array) and preparing to transmit an Ethernet message which is a multi-packet message, wherein each packet of the message comprises a message packet head, message data and a message packet tail; generating an MAC effective zone bit by a CPU (central processing unit); transmitting the MAC effective zone bit, the message head, the message data and the message packet tail to the FPGA sequentially; unpacking the packet message by the FPGA; transmitting the message data of the MAC effective label to an MAC source address processing module of a corresponding MAC according to the analyzed MAC effect zone bit; and after inserting an source MAC address of the MAC in the message data to be transmitted through the MAC source address processing module, transmitting by the FPGA. The method for optimizing the multiple-network-interface transmission of the message of the intelligent substation, disclosed by the invention, has the advantages of improving the transmission efficiency of an interface, reducing the development difficulty of the CPU and reducing the received data quantity of the PFGA.

Description

technical field [0001] The invention belongs to the technical field of power systems, and relates to an intelligent terminal device, in particular to a terminal device of an intelligent substation. Background technique [0002] With the continuous development and progress of substation technology, more and more attention has been paid to the smart substation, and it is gradually becoming the mainstream direction of technology development. Among them, the digitalization of the primary equipment of the substation and the networking of the secondary equipment are developing very rapidly, and these are technological innovations brought about by the application of digital technology. Digital technology can digitize the data used in the process layer, digitize the information transmitted between devices, etc. These digital improvements are conducive to the monitoring and management of device status and network status in smart substations, and improve the reliability of substation ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/70
Inventor 杨志涛胡炯徐刚徐万方周涛刘涛
Owner BEIJING SIFANG JIBAO AUTOMATION
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