Multi-redundancy networked computer-interlocked human-machine interaction system

Abstract

The invention discloses a multi-redundancy networked computer-interlocked human-machine interaction system, comprising: three human-machine interaction units, two network switches, and two logic masters; the three human-machine interaction units are in communicated connection with one another through the two network switches; two Ethernet communication modules in each human-machine interaction unit are connected with the two logic masters through one network switch; the first and second human-machine interaction units act as an operating portion of the system herein; the dual-unit service modeis utilized, two human-machine interaction units are main parts, and the third human-machine interaction unit acts as an operation and maintenance diagnostic portion; when the first or second human-machine interaction unit fails, the third human-machine interaction unit is used instead of the failed first or second human-machine interaction unit. The system herein is simple in structure; no switching equipment is used; reliability and redundancy are high; failure of any part can be discovered in time; no single fault may affect the use of the system.

Description

technical field [0001] The invention relates to the field of railway signals, in particular to a multi-redundant networked computer interlocking human-computer interaction system. Background technique [0002] After nearly 30 years of development and selection, the operation display and operation and maintenance diagnosis terminal of computer interlocking in my country has developed from the traditional unit console to the combination of industrial control computer and display. Over the years, the industry has focused on the logic host and logic software that have security implications, while the human-computer interaction system for operation and display has not received enough attention, and its reliability and availability need to be further improved. In the human-computer interaction part, there are two operating machines, one is the main device and the other is the backup device. Only the main device can be used as a display terminal for operation and display. The two ...

AI Technical Summary

Problems solved by technology

[0003] With the accumulation of on-site experience and the development of computer technology, it has been exposed that the structure has shortcomings in the following aspects: First, the switching link in the equipment composition is the bottleneck of the system, and when the switching equipment fails, it will affect the use of operators and reduce the system reliability

The second is that when the manipulat...

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