CNC Machine Tool Network Security Gateway System
A technology of security gateway and numerical control machine tool, applied in the field of security gateway system, can solve problems such as poor security of gateway system, and achieve the effect of enhancing system security and solving high security risks
Inactive Publication Date: 2016-12-28
西宁金智电子有限公司
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Problems solved by technology
[0012] In order to overcome the disadvantages of poor security of the existing gateway system, the present invention provides a security gateway system for CNC machine tool network
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[0021] The CNC machine tool network security gateway system of the present invention includes a data communication security subsystem, a system security protection subsystem, a role-based management interface and a remote management tool.
[0022] (1) Data communication security subsystem: It mainly implements communication security mechanisms such as data source authentication, data integrity and communication unidirectionality, among which:
[0023] ①The data source white list is described by XML language, and the one-way hash function in data source authentication is realized by MD5 algorithm.
[0024] ② The one-way hash function in data integrity protection is also realized by MD5 algorithm.
[0025] In addition, on the workstation side and the control machine side, it is necessary to implement the corresponding data file sending and receiving programs.
[0026] (2) System security protection subsystem: It mainly realizes system security mechanisms such as communication c...
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The invention discloses a security gateway system of a numerically-controlled machine tool network. The security gateway system solves the technical problem of poor security of an existing gateway system. According to the technical scheme, the security gateway system comprises a data communication security subsystem, a system safety protection subsystem, a management interface based on roles and a remote management tool. When the numerically-controlled machine tool network has access to an enterprise information network, data source authentication, data integrity authentication and communication unidirectional authentication are carried out through the data communication security subsystem, and then communication controllability authentication, abnormal event alarm and safety audit are conducted through the system safety protection subsystem. Because a safe unidirectional data communication channel is established between the enterprise information network and the numerically-controlled machine tool network, communication security mechanisms of the data source authentication, data integrity authentication, communication unidirectional authentication and the like are provided. In the security gateway system, system safety mechanisms of the communication controllability authentication, abnormal event alarm, safety audit, safety management and the like are provided, so the technical problem of high security risks due to a direct access mode are solved.
Description
technical field [0001] The invention relates to a safety gateway system, in particular to a numerical control machine tool network safety gateway system. Background technique [0002] my country's manufacturing enterprises are increasingly using CNC machine tools for precision machining. In the machining system based on CNC machine tools, it consists of a control machine and multiple CNC machine tools. They are connected through the network, and the control machine implements remote setting and control of the CNC machine tools to form a CNC machine tool network. [0003] With the deep integration of industrialization and informatization, more and more enterprises connect the CNC machine tool network to the enterprise information network. Engineers design machining drawings on workstations in the enterprise information network, generate processing parameter files, and transmit them to the CNC machine tools. The control machine in the machine tool network is directly used to ...
Claims
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IPC IPC(8): H04L12/66H04L29/06G05B19/418
CPCY02P90/02
Inventor 蔡霖蔡皖东
Owner 西宁金智电子有限公司