Signal Analyzer Automatic Input Channel Assignment
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Solution Overview
Problem
Manual assignment of input channels to signal decoders for bus signal measurement is tedious and prone to errors, requiring correct connection of data and clock signals for accurate decoding.
Innovation Solution
A method and signal analyzer that automatically assign input channels to a signal decoder by analyzing digital representations of signals, generating characteristic parameters, and comparing them to expected values to ensure correct connection, using a multiplexer and control unit for logical assignment without manual intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual assignment of input channels to signal decoder is used, then correct connection can be achieved, but the process is tedious and prone to errors
Solution Approach 1:
The system performs self-identification by automatically analyzing the characteristics of incoming signals on each input channel and determining the correct assignment to data or clock inputs without requiring manual intervention. The signal analyzer autonomously completes the assignment task that would otherwise require user knowledge and manual configuration.
Solution Approach 2:
The manual mechanical process of wiring and assigning input channels is replaced by an automated electronic analysis system. The control unit uses digital signal analysis and characteristic parameter comparison to determine assignments, substituting the manual mechanical assignment process with an automated electronic decision-making system.
2Ease of operation
If automatic assignment is implemented, then user comfort is improved, but additional analysis steps are required
Solution Approach 1:
The system performs signal analysis to generate characteristic parameters, which provides more information than strictly necessary for basic assignment. This excessive analysis ensures robust and reliable assignment decisions by examining multiple signal characteristics rather than relying on a single parameter.
Solution Approach 2:
The control unit receives characteristic parameters from the signal decoder, compares them against expected values, and uses this feedback to determine the correct assignment. The system continuously monitors signal characteristics and adjusts assignments based on the feedback from the comparison process.
Data Source
AI summary
A method for assigning an input channel of a signal analyzer to a signal decoder has the steps of analyzing a digital representation of a signal received by an input channel and generating a characteristic signal parameter of the signal. The parameter is compared to expected values and the corresponding input channel is assigned to the signal decoder according to the result of the comparison. Further, a signal analyzer for measuring a bus signal is shown.