2M ring network fault diagnosis method and system

Abstract

The invention discloses a 2M ring network fault diagnosis method and a 2M ring network fault diagnosis system. The method comprises the following steps of: (1) acquiring network topology information of a dynamic environmental centralized monitoring system, and respectively storing the information aiming at each 2M ring; and (2) accessing a loop gathering bus of 2M rings of the dynamic environmental centralized monitoring system, scanning the communication status of each node in the 2M ring in real time aiming at each 2M ring in the system, forming a communication interrupt node set S by all scanned communication interrupt nodes during communication abnormality, reading the network topology information corresponding to the 2M ring, analyzing and judging two fault source nodes N and P positioned at two ends of the communication interrupt node set S according to the read network topology information, obtaining a fault source node set O={N,P} and generating a fault work order. The invention can accurately and rapidly position faults, and the fault work order with clear fault information and low redundancy is generated.

Description

technical field [0001] The invention relates to the field of a power environment centralized monitoring system, in particular to a 2M ring network fault diagnosis method and system. Background technique [0002] As in the power environment centralized monitoring system, commonly used networking methods include: 2M time slot, full 2M ring, 2M ring, etc. The 2M ring has the function of automatic link healing. When a base station or transmission line in the ring is interrupted, the ring will automatically switch to the link mode to improve the stability of the transmission; at the same time, compared with the transmission of the full 2M ring In this way, all devices in a ring share a 2M link, which occupies relatively few resources. Based on the above-mentioned advantages, the 2M ring networking method has been used on a large scale in the field of power environment monitoring. [0003] The current power environment centralized monitoring system mostly automatically generate...

AI Technical Summary

Problems solved by technology

In the 2M ring networking mode, if two devices in a 2M ring fail, the communication link of the 2M ring will be interrupted, and the communication between other devices that have not failed will also be interrupted. At this time, the monitoring system will identify all devices with communication interruptions as faults, and the fault information generated in this way has unclear defects, which will consume a lot of time for maintenance personnel

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