Token-Based Parameter Validation for Safety Devices
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Solution Overview
Problem
The conventional method of parameterizing safety-critical devices is laborious and time-consuming, especially when dealing with complex devices in hazardous environments, as it requires manual validation of numerous parameter values, which can be inefficient and risky.
Innovation Solution
A method that calculates an external parameter token and an internal parameter token based on a parameter list, allowing for validation by comparing a single device token input into the device, simplifying the validation process and reducing the need for individual parameter value checks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual validation of each parameter value is performed, then parameterization reliability is improved, but parameterization time and labor effort increase significantly
Solution Approach 1:
The patent extracts the essential validation function from individual parameter checking and implements it through cryptographic token verification. Instead of validating each parameter individually, the system generates a token that represents the entire parameter set, allowing validation of all parameters through a single token check.
Solution Approach 2:
The patent transforms multiple parameter values into a single token parameter through cryptographic hashing. This parameter transformation allows the system to maintain comprehensive validation while reducing the number of validation operations from many individual parameters to a single token.
2Manufacturing precision
If comprehensive parameter validation is performed, then parameterization accuracy is improved, but operational complexity increases
Solution Approach 1:
The patent introduces cryptographic tokens as intermediary elements between the parameterization process and validation process. The tokens serve as mediators that encapsulate the validation logic, making the operation simpler for users while maintaining comprehensive validation accuracy.
Solution Approach 2:
The patent creates cryptographic copies (tokens) of the parameter sets that can be validated independently. These token copies contain all necessary validation information without requiring access to the original complex parameter structures, simplifying the operational process.
3Measurement precision
If individual parameter values are validated, then parameter correctness is ensured, but the process becomes extremely laborious for complex devices
Solution Approach 1:
The patent merges multiple individual parameter validations into a single token-based validation process. By combining all parameter verification into one cryptographic check, the system maintains high validation precision while dramatically reducing the apparent complexity for operators dealing with complex devices.
Data Source
AI summary
A method and apparatus for parameterizing a device with parameters from a parameter list, wherein in an event of a match occurring between an external parameter token calculated externally based on the parameter list, and an internal parameter token calculated internally by the device to be parameterized based on the parameter list, an external device token input into the device is compared with an internal device token, which is calculated internally by the device to be parameterized based on a device ID for the device and the internal parameter token to validate the parameter list such that fast and reliable parameterization of a device, particularly a safety critical device, which is provided in an industrial installation or a vehicle, is achieved.