Control System Configuration via External Data Storage Module
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Solution Overview
Problem
Existing safety control systems face security risks due to the mobility of memory cards used for configuration data storage, which can lead to incorrect configurations and potentially safety-critical situations.
Innovation Solution
A control system where configuration data is stored in a data storage module mechanically connected to a cable, with a communication path between the control module and the data storage unit, ensuring tamper-proof and flexible configuration management by using a fixed connection that requires effort to change, and optionally incorporating radio transmission for data exchange.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a memory card is used for configuration data storage, then flexibility and ease of replacement are improved, but security and tamper-proof capability deteriorate
Solution Approach 1:
The system separates configuration data storage from the control module by using an external data storage module connected via cable. This segmentation allows the control module to be replaced or upgraded while maintaining the configuration data in the external storage, providing flexibility while enhancing security through physical protection of the data storage component.
2Ease of operation
If a memory card is used for configuration data storage, then ease of operation is improved, but security and protection against unauthorized changes deteriorate
Solution Approach 1:
The patent introduces a cable as an intermediary component between the control module and the data storage module. This intermediary provides a controlled interface that allows legitimate data access while making unauthorized modifications difficult, as any changes would require physical manipulation of the cable connection and the external storage device.
3Reliability
If a fixed connection is used for data storage, then security and tamper-proof capability are improved, but ease of operation and flexibility deteriorate
Solution Approach 1:
The system employs a dynamic connection approach where the data storage module is externally connected via cable rather than being permanently fixed. This allows the connection to be changed or disconnected as needed, providing operational flexibility while maintaining security through the physical separation and controlled interface of the external storage device.
Data Source
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AI summary
The system has a control module (10) reading sensors to generate a control signal. A data memory module (16) is mechanically connected to a cable (14), which is connected to the control module and a connection unit (22). A data memory unit (18) e.g. flash memory, of the data memory module is utilized for storing configuration data of the control module in a memory card. Communication paths transfer configuration data between the data memory unit of the data memory module and the control module. An independent claim is also included for a method for storing configuration data of a control module using a control system.