Numerical control (NC) code security filtering system

A technology of security filtering and data security, which is applied in the field of communication security, can solve problems such as leakage risks, achieve the effects of enhancing security protection functions, solving code tampering, and reducing security risks

Active Publication Date: 2017-05-31
CHINA ELECTRONICS TECH CYBER SECURITY CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

If sensitive information is attached to the NC code, there will be a serious risk of leakage

Method used

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  • Numerical control (NC) code security filtering system
  • Numerical control (NC) code security filtering system

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Embodiment Construction

[0022] The system of the present invention can run in the industrial firewall between the configuration management network and the numerical control processing network, and the design concept is: the transmission of the numerical control program NC code between the process terminal in the configuration management network and the DNC numerical control system is the FTP communication mode, so The filtering data is based on the FTP application agent module. The FTP application agent module receives the NC code of the numerical control program to the industrial firewall, and then analyzes, filters, and controls the data. Only those that meet the rules are allowed to pass, and those that do not meet the rules are blocked and eliminated. Keep a log.

[0023] The system will be described in detail below.

[0024] Such as figure 1 As shown, the system should at least include a numerical control data filtering rule base, a downlink data security protection module, and preferably an up...

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Abstract

The invention provides a numerical control (NC) code security filtering system. The NC code security filtering system is characterized in that a transmission numerical control program NC code between a process terminal in a system configuration management network and a DNC (Direct Numerical Control) numerical control system is in an FTP (File Transfer Protocol) communication mode, so that data are filtered by taking an FTP application proxy module as a basic module; the FTP application proxy module is used for receiving the numerical control program NC code in an industrial firewall, and analyzing, filtering and controlling the data; data which are accordant with a rule are allowed to pass, and data which are not accordant with the rule are blocked and recorded in a log. By adopting the numerical control code security filtering system, the security risk of a numerical control machine tool NC code is lowered, and the technical problems that codes are tampered, sensitive information is leaked and the like are solved.

Description

technical field [0001] The invention relates to the technical field of communication security, in particular to a numerical control NC code security filtering system. Background technique [0002] A CNC machine tool is an automated machine tool equipped with a program control system. At present, in the field of manufacturing, especially in the field of aerospace, CNC machine tools have become irreplaceable equipment. The NC code is the program used by the CNC system to control the movement of the machine tool, and is composed of various function words according to the specified format. In the general NC production process, the process department first formulates the machining plan, generates NC code, and then sends it to the operator in the workshop through the DNC system, and the operator loads the received NC code into the CNC equipment to start processing parts. [0003] Traditional CNC equipment transmits CNC codes through the DNC system. In the process of code transmi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/4093
CPCG05B19/40937G05B2219/32161
Inventor 兰昆唐林许子卿王晓飞蔡新源
Owner CHINA ELECTRONICS TECH CYBER SECURITY CO LTD
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