Data transmission and processing method for GIS double fiber

Abstract

The invention discloses a GIS double-fiber data transmission and processing method. The method comprises the steps that: a GIS digital interval measurement and control device is connected with the first to the Nth communication modules of an intelligent monitoring device in sequence by a double-path fiber to form a double circuit; the GIS digital interval measurement and control device sends two data frames which are opposite in directions to the double circuit; each communication module of the intelligent monitoring device receives the data frames which are sent to the circuit and changes data of the data frames and then transmits the changed data to the next communication module of the intelligent monitoring device; when an entire frame data packet is completely sent, the communication modules of the intelligent monitoring device compare the data frames in the different directions in the double circuit; and if a comparison result shows an abnormal condition, the path is connected with another path to ensure the normal sending of the data packet. In the invention, if data errors occur due to the failure of one or two paths of fiber in a data transmission process, the double-fiber transmission can be changed into transmission network with two single fibers in time, so the normal data transmission is effectively guaranteed and the GIS equipment control stability is realized.

Description

technical field [0001] The invention belongs to the field of GIS gas insulated switch control, and relates to a data transmission and processing method, in particular to a data transmission and processing method using GIS dual optical fibers. Background technique [0002] GIS is a gas insulated switch, also known as a sulfur hexafluoride closed switch, which is the most widely used circuit breaker device in the field of high-voltage transmission. It is usually used in power plants, substations, large industrial and mining enterprises and other places. Since the control of the gas insulated switch is relatively complicated, and usually multiple intervals are configured at the same time, there are a large number of control lines, including circuit breaker opening / closing signal lines, grounding switch opening / closing signals and isolating switch opening / closing signals A large number of signal lines such as signals. All control signals need to be sent from the control room to...

AI Technical Summary

Problems solved by technology

In general, the total number of cables is as many as 50, which is not good in terms of reliability and economy

At the same time, electrical signals are seriously disturbed in the high-voltage environment on site, and the stability of transmission is not ideal

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