Safe protective gateway and system for modern industrial control system network communication

• Main Authors: XIE LUN, WANG ZHILIANG, JIN LIANGCHEN, DENG ZULAN, MA HONGYUE
• Format: Patent
• Language: English
• Published: 18.11.2015
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION

The invention provides a safe protective gateway and system for modern industrial control system network communication, which can guarantee safe communication between users and field devices in a public network. The gateway comprises a communication control unit, a data package analysis unit and a linkage unit. The communication control unit is used for basic communication control and control of communication between the users and the field devices according to a command sent from the linkage unit. The data package analysis unit is used for performing selective encryption and decryption and selective deep analysis on a received communication data package. The linkage unit is used for sending a command whether to refuse subsequent communication requests of the user to the communication control unit according to an analysis result, and determining whether to send the analyzed communication data package to a target field device. The safe protective gateway and system are applicable to the technical field of communication.