Control Parameter Transfer via 2D Codes for Secure Offline Control
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Solution Overview
Problem
Existing methods for transmitting data to control devices in power plants, such as using manual operations or recording media, are time-consuming and labor-intensive, and pose security risks due to the need for offline data transfer.
Innovation Solution
A control system that uses a two-dimensional code communication method, where an imaging device captures a two-dimensional code image and converts it into post-conversion input information, allowing secure and efficient transmission of control parameters to control devices without physical communication networks, thereby reducing time and effort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual operation or recording medium is used to transmit data to control device, then security policy is satisfied (no network connection), but time and effort increase significantly
Solution Approach 1:
A two-dimensional code serves as an intermediary carrier that bridges the cloud and control network without direct connection. The code encapsulates control parameters and can be captured by imaging devices, enabling data transfer while maintaining security isolation. This mediator approach allows efficient data transmission without compromising the security policy of no direct network connection.
Solution Approach 2:
The patent replaces manual mechanical operations (physical media insertion, manual input) with automated optical recognition. Imaging devices automatically capture two-dimensional codes and extract control parameters through image processing, eliminating manual intervention and significantly reducing transfer time while maintaining security.
2Reliability
If manual operation is used for data input, then security is maintained, but operation complexity and effort increase
Solution Approach 1:
The system enables self-service data input where the control device automatically captures images of two-dimensional codes using its imaging device, extracts control parameters through built-in processing, and executes operations without human intervention. This automated self-service approach maintains security while dramatically improving ease of operation.
Solution Approach 2:
Manual mechanical data input operations are replaced with automated optical recognition and image processing systems. The control device uses imaging devices to capture codes and automated processing to extract parameters, eliminating the need for manual typing or physical media handling while maintaining security constraints.
3Reliability
If offline method is used for data transfer, then security policy is satisfied, but real-time control capability is lost
Solution Approach 1:
Control parameters are pre-encoded into two-dimensional codes in the cloud before transfer. The codes contain all necessary control information that can be rapidly decoded and executed by the control device, enabling real-time response without requiring continuous network connection or complex real-time data processing during control operations.
Data Source
AI summary
A control system controls a control object device on the basis of control information using a control device and includes: a conversion unit configured to convert an imaging signal obtained by capturing an image generated on the basis of pre-conversion input information which is input information including the control information to the input information and to output post-conversion input information; and a transmission unit configured to transmit the control information included in the post-conversion input information to the control device.