Network architecture method of reactor computer monitoring system
A computer monitoring and system network technology, applied in transmission systems, digital transmission systems, data exchange networks, etc., can solve problems such as remote attacks, PLC misoperations, serious accidents, etc., to prevent communication paralysis, improve security, and improve communication. effect of ability
Inactive Publication Date: 2018-05-08
CHINA INSTITUTE OF ATOMIC ENERGY
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The disadvantage of this structure is that the operator station can directly access the lower-layer PLC equipment, and there is a possibility of misoperation on the PLC; at the same time, if it is connected to the monitoring layer equipment, there will be a remote attack on the remote control port reserved by the PLC, causing more serious problems. risk of accident
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[0013] The present invention will be described in detail below with reference to the drawings and embodiments.
[0014] In order to better realize the functions of the reactor computer control system, the computer monitoring system provided by the present invention integrates various small systems into one system, and the network construction adopts such as figure 1 The new redundant dual-ring network link design shown is divided into operation layer (upper layer) dual-ring network A and control layer (lower layer) dual-ring network B. Each dual-ring network is formed by optical fiber connections between symmetric and redundant switches. Redundant ring network. The equipment connected to the operating layer double-ring network A includes an operator station 1, an engineer station 2, a redundant I / O server 3, a redundant alarm server 4, a redundant trend server 5, and dump Server 6. Redundant OPC interface server 9, switches, printers, etc. The dump server 6 is connected to the di...
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The invention relates to a network architecture method of a reactor computer monitoring system. The network architecture is divided into a double ring network of operation layer and a double ring network of control layer, and each double ring network is a redundant ring network formed by symmetrically and redundantly arranged switches that are connected through optical fibers; the device accessedby the double ring network of operation layer comprises an operator station, an engineering station, a server unit and a switch, and the device accessed by the double ring network of control layer comprises control units PLC and a switch; and the double ring network of operation layer and the double ring network of control layer are connected through a redundantly arranged I / O server, and the other servers are only connected to the double ring network of operation layer. The network architecture mode provided by the invention greatly improves the security and stability of the reactor computermonitoring system, the small systems of the reactor computer monitoring system are uniformly integrated, and an important guarantee is provided for the safe and stable operation of the reactor.
Description
Technical field [0001] The invention relates to a reactor computer monitoring system, in particular to a reactor computer monitoring system network architecture method. Background technique [0002] The plant-wide computer monitoring system conducts real-time online monitoring of the operating conditions and various parameters of various equipment during the operation of the reactor, records and displays the real-time status of various equipment, and provides an important guarantee for the safe and stable operation of the reactor. At the same time, it can record and save important parameters during the operation of the reactor as historical trend data, establish a historical database, and provide historical data for reactor-related research. Therefore, the plant-wide computer monitoring system is the most important and indispensable part of the reactor. [0003] Before the establishment of the plant-wide computer monitoring system, there were multiple digital systems in the reacto...
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IPC IPC(8): H04L1/22H04L12/437
CPCH04L1/22H04L12/437
Inventor 白欣然刘桂娟马勇刚吴纯良张春杰李君禄李佳任伟武杰肖鹤飞孙静
Owner CHINA INSTITUTE OF ATOMIC ENERGY