Double Ethernet redundant server-based monitoring and alarming system

Abstract

The invention discloses a double Ethernet redundant server-based monitoring and alarming system, which consists of a top layer network, a medium layer network and a bottom layer network, wherein the top layer network comprises a workstation, an extension alarming terminal and an industrial Ethernet switch, and the extension alarming terminal and the workstation are connected with the industrial Ethernet switch respectively; the bottom layer network comprises acquisition units, external equipment connected with the acquisition units, at least two industrial Ethernet switches connected with the acquisition units respectively, and system input and output switching values connected with the acquisition units; the medium layer network comprises at least two input and output servers; one of the input and output server is connected with the industrial Ethernet switches in the top layer network and the bottom layer network; and two adjacent input and output servers are mutually connected. With the structure, when the servers are in maintenance, damage or system update, the system can work normally; and the top layer network and the bottom layer network do not have communication conflicts and system failures can be easily judged and maintained.

Description

technical field [0001] The invention relates to a monitoring and alarm system, in particular to a monitoring and alarm system based on dual Ethernet redundant servers. Background technique [0002] The existing monitoring and alarm system generally consists of a signal acquisition unit, a data summary processing unit, and a status and alarm display unit. The signal acquisition unit is distributed in many places on the ship, connected with key equipment, collecting the working data of the equipment, and preprocessing the data in the signal acquisition unit. The data of multiple signal acquisition units is aggregated to the processing unit through the field bus or other communication forms, and the data is recorded in the database in the processing unit, and the data is alarmed and judged according to the interlocking relationship and alarm logic, and the processed result data is also recorded in the database. The processing unit also provides input and output access of curre...

AI Technical Summary

Problems solved by technology

If the I / O server is damaged, the system will crash, and the system cannot be repaired or software upgraded while the system is in working condition

The connection between the common signal acquisition unit and the input and output server adopts the field bus. When the system signal point scale is large, the communication speed of the underlying field bus is difficult to meet the requirements of the data update time; each signal acquisition unit contains different parameters. setting, which brings inconvenience to on-site module maintenance and exchange, and also increases the workload of communicating with the input and output server to set and change parameters

The user man-machine interface is usually composed of computer workstation, luminous tube light panel extension alarm indication, intelligent small liquid crystal extension alarm, etc. Multiple display alarm operation terminals are often connected through multiple networks, which increases the complexity of input and output servers and server software. workload

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