Waveform Trigger Setup for Complex Oscilloscope Signal Search
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Solution Overview
Problem
Existing measurement application devices, such as oscilloscopes, require complex and time-intensive trigger definitions, lacking flexibility in capturing signal conditions of interest in complex electronic systems.
Innovation Solution
A measurement application setup with a signal processor that allows users to define trigger conditions by painting or drawing a search waveform, utilizing algorithms like neural networks, Markov models, and dynamic time warping to identify similar data sections in measurement waveform data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional trigger condition definition methods are used, then measurement devices can detect specific signal levels, but the operation becomes complex and time-intensive
Solution Approach 1:
The patent allows users to copy a desired waveform pattern from the displayed signal and use it as a template for trigger condition definition. This copying approach eliminates the need for complex parameter configuration, as the waveform shape is directly captured and used for matching, thereby simplifying operation while maintaining detection precision
Solution Approach 2:
The system performs preliminary waveform capture and template creation before the actual measurement process. By pre-defining the trigger pattern through waveform copying and storing it for later matching, the system prepares the trigger conditions in advance, reducing the operational complexity during actual signal analysis
2Ease of operation
If simple trigger conditions are used, then the operation is easy, but the flexibility for inspecting complex signal conditions is insufficient
Solution Approach 1:
The patent implements dynamic trigger condition definition where users can interactively draw or copy waveforms directly on the display. This dynamic approach allows the trigger pattern to adapt to any signal shape or condition, providing unlimited flexibility while maintaining ease of operation through graphical interaction rather than fixed parameter sets
Solution Approach 2:
The waveform copying and matching mechanism serves multiple functions: it can detect simple level crossings, complex multi-level patterns, transient events, and periodic signals. This universal approach allows a single simple operation (waveform copying) to handle diverse signal inspection needs, thereby achieving both ease of operation and high adaptability
3Measurement precision
If detailed parameters are required for trigger definition, then measurement precision is high, but the time required for setup increases
Solution Approach 1:
By copying the actual waveform shape directly from the display, the system captures all necessary trigger condition information in a single action. This eliminates the need for multiple parameter adjustments and iterations, achieving high measurement precision immediately while minimizing setup time
Solution Approach 2:
The system performs preliminary waveform capture and template creation before the actual measurement process. By pre-defining the trigger pattern through waveform copying and storing it for later matching, the system prepares the trigger conditions in advance, reducing the operational complexity during actual signal analysis
Data Source
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AI summary
The present disclosure provides a measurement application setup comprising a signal processor configured to process measurement waveform data, a display that is coupled to the signal processor and that is configured to display at least part of the measurement waveform data, a user input device that is coupled to the signal processor, wherein the signal processor is configured to acquire a user input via the user input device, the user input resembling a search waveform that is to be searched by the signal processor in the measurement waveform data. Further, the present disclosure provides a respective method.