A security protection method and system applied in industrial control system
An industrial control system and security protection technology, applied in the direction of transmission system, digital transmission system, data exchange network, etc., can solve the problems of loss of function of lower computer or field equipment, danger, non-compliance with normal operation process operation instructions, etc.
Active Publication Date: 2020-06-16
HANGZHOU GUYI NETWORK TECH CO LTD
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Problems solved by technology
[0003] For this reason, the present invention provides a safety protection method and system applied in industrial control systems, which are used to solve the problem that the controller in the control system sends an operation command that does not conform to the normal operation process when the controller in the control system is disturbed by the outside world or has a problem. Dangerous problems and other problems caused by the loss of functions of the lower computer or field equipment
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[0039] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, and the reference numerals refer to components and techniques in the present invention, so that the advantages and features of the present invention can be more easily understood in a suitable environment.
[0040] exist figure 1 Represents an industrial control system supervision and management network 100 and a field control network 200 , the supervision and management network 100 includes but not limited to a man-machine interface 102 , an engineer workstation 104 , a monitoring console 106 , and a switch 110 for network connection. The man-machine interface 102 and the engineer workstation 104 manage and supervise the lower computer 302 of the field control network through the switch 110 . The monitoring station 106 cooperates with the security protection equipment 304 deployed in each field control subnet to perform intrusion detection...
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The invention provides a safety protection method and system for an industrial control system. The system comprises a safety protection system applied to the industrial control system, the safety protection system applied to the industrial control system comprises a supervision and administration network and an onsite control network, the supervision and administration network comprises a man-machine interface, an engineer workstation and a monitoring station, and the man-machine interface, the engineer workstation and the monitoring station are connected with a switch at the same time; the onsite control network comprises a lower computer, a safety protection device and an onsite device, the lower computer is connected with the switch, the safety protection device and the onsite device at the same time, and the safety protection device is connected with the switch; and by adoption of the safety protection system and device, when the safety protection device receives information flow of illegal access, the safety protection device limits and blocks the extension of the illegal information or malicious software caused by the information on the industrial control system, and the problem control subnet or related devices are isolated quickly.
Description
technical field [0001] The present invention relates to the technical field of industrial control security, in particular to a security protection method and system applied to industrial control systems. Background technique [0002] With the widespread application of standard network and Internet technologies in industrial control systems, the security threats of industrial control systems are increasing day by day, and the possibility of malicious software spreading among industrial control devices has been confirmed. At present, the existing security protection technology is limited to the protection of specific control equipment. For large-scale industrial control networks, the security protection of each control subnet is carried out independently and independently. In view of the lack of a linkage mechanism in the protection means, the present invention proposes a method based on the information of individual illegal intrusion detection to realize the intelligent linka...
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IPC IPC(8): H04L29/06H04L12/24
CPCH04L41/06H04L63/1416H04L63/145
Inventor 胡浩何小梅王晶王明华傅刚陶靖隆刘青李志李远杨文勃侯海波
Owner HANGZHOU GUYI NETWORK TECH CO LTD