HMI Parameter Authentication for Safe Power Device Adjustment
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Solution Overview
Problem
The operation safety and security of devices connected to a power distribution system are compromised due to erroneous settings of operation parameters, particularly by unauthorized users, which can lead to unsafe device operation and personal security risks.
Innovation Solution
A computer-implemented method and apparatus that automatically checks the relevance of operation parameter settings, performs user authentication, evaluates admissibility, and adjusts parameters only if authenticated and within safe ranges, using a processor and human machine interface to ensure secure and safe operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If user authentication and security checks are implemented for operation parameter settings, then operation safety and security are improved, but device complexity and ease of operation deteriorate
Solution Approach 1:
The control apparatus automatically checks whether an operation parameter is security-relevant before allowing user modification. This preliminary classification action prevents unnecessary authentication steps for non-critical parameters while ensuring security for critical ones, thus improving safety without proportionally increasing complexity
Solution Approach 2:
The system performs automatic security checks and authentication processes without requiring manual intervention from the user. The control apparatus autonomously determines whether authentication is needed and executes the appropriate security protocol, reducing the perceived complexity for the user while maintaining high safety standards
2Reliability
If user authentication is required for security-relevant parameters, then operation safety is improved, but ease of operation deteriorates
Solution Approach 1:
Different authentication requirements are applied to different operation parameters based on their security relevance. Critical parameters require authentication while non-critical parameters can be modified without it, creating a localized security approach that maintains ease of operation for routine tasks while ensuring safety for critical changes
Solution Approach 2:
The control apparatus automatically provides feedback to the user about whether authentication is required for a given parameter and communicates the results of security checks. This transparent feedback mechanism helps users understand when security protocols are active, reducing frustration while maintaining safety
3Reliability
If automatic security checks are performed for all operation parameters, then operation safety is improved, but productivity deteriorates
Solution Approach 1:
The control apparatus pre-classifies operation parameters as security-relevant or non-security-relevant before user interaction. This preliminary categorization allows the system to skip security checks for non-critical parameters during normal operation, maintaining high productivity while ensuring safety for critical parameters when needed
Solution Approach 2:
Instead of performing full security checks on all parameters, the system applies security checks selectively only to parameters classified as security-relevant. This partial application of security measures maintains productivity for routine operations while ensuring comprehensive safety for critical operations
Data Source
AI summary
An apparatus (1) provided to connect at least one device (2) to a power distribution system (3), said apparatus (1) comprising a human machine interface, HMI, (4) having elements to interact with the apparatus (1), wherein the human machine interface elements (11,12) are adapted to display and/or to adjust setting values of operation parameters of the at least one connected device (2), wherein access to one or more human machine interface elements is restricted by at least one access restriction mechanism of said apparatus (1) to enhance the operation security of the at least one device (2) connected via said apparatus (1) to said power distribution system (3) and/or to enhance the operation security of the apparatus (1) and/or of the power distribution system (3).