A fpga-based power switch traffic monitoring system and monitoring method

Abstract

The invention discloses a power switch traffic monitoring system and monitoring method based on FPGA. The system is characterized by comprising a PHY chip, a FPGA receiving MAC module, a traffic monitoring module, a switch chip, a processor and a FPGA sending MAC module, wherein the PHY chip is a physical channel for Ethernet message transmission; the FPGA receiving MAC module finishes a decodingoperation of the Ethernet message so as to acquire data content of the Ethernet message; the traffic monitoring module performs the traffic monitoring on the message needing the traffic control; the switch chip finishes the forwarding of the Ethernet message; the processor module finishes the related configuration work and communicates with the FPGA; the FPGA sending MAC module forwards the message to the PHY chip, and then sends to far-end power communication equipment. The function copy can be conveniently realized through multiple Ethernet interfaces, the product development period is reduced, the extension is convenient, the FPGA is used for the realization, and the flexibility is high.

Description

technical field [0001] The invention relates to the technical field of power system automation, in particular to an FPGA-based power switch flow monitoring system and a flow monitoring algorithm. Background technique [0002] The power special switch is a switch specially used for Ethernet communication in the smart substation of the power system. It mainly performs special processing on the sampling value message (SV message) and GOOSE message in the smart substation. Dwell delay measurement function. [0003] When it is necessary to provide QoS services, the switch must have the functions of traffic monitoring and traffic shaping, so as to implement flow control on port traffic. Currently, there are mainly two token bucket algorithms to implement traffic monitoring, namely the single-rate three-color marking algorithm and the dual-rate three-color marking algorithm. They all color-mark Ethernet packets according to the evaluation results, that is, green, yellow, and red,...

AI Technical Summary

Problems solved by technology

[0017] In order to solve the deficiencies in the prior art, the present invention provides an FPGA-based power switch flow monitoring system and monitoring algorithm, which solves the complex problem of implementing the existing two token bucket algorithms, optimizes the flow monitoring strategy, and can meet the needs of power-specific Requirements for traffic monitoring of SV packets and GOOSE packets in switches

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