Oscilloscope Automatic Signal Segment Event Detection
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Solution Overview
Problem
Manual analysis of measured signals in oscilloscopes is time-consuming when searching for seldom events across multiple segments, as users must manually scan and re-scroll through segments to identify events matching specific criteria.
Innovation Solution
A method and oscilloscope design that automatically acquires and stores multiple signal segments, applies a search criterion to all segments, and stores timing events in memory, allowing for automatic detection and display of events without manual input, with features like an 'ANALYZE ALL' button and automatic segment playback to highlight relevant segments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual analysis is used to search for seldom events in multiple segments, then the user can identify events, but the process is time-consuming and complex
Solution Approach 1:
The oscilloscope automatically applies search criteria to all acquired segments and identifies seldom events without requiring manual user intervention. The system serves itself by autonomously scanning segments, detecting events matching the criteria, and presenting results, thereby eliminating the time-consuming manual analysis process while maintaining accurate event detection
Solution Approach 2:
The oscilloscope performs preliminary analysis by automatically applying search criteria to all segments immediately after acquisition. This preliminary action of scanning and identifying events before user review ensures that when the user examines the results, the time-consuming search process has already been completed, reducing overall analysis time while preserving detection accuracy
2Ease of operation
If search criterion is applied only on currently visualized segment, then the display remains simple, but the user must manually investigate all segments
Solution Approach 1:
The search criterion application is extended to function universally across all acquired segments rather than being limited to the currently visualized segment. This multi-functionality allows a single search operation to scan all segments simultaneously, making the system capable of comprehensive event detection across the entire signal acquisition without requiring repeated manual operations on each segment
Solution Approach 2:
The oscilloscope automatically applies the search criterion to all segments without requiring the user to manually navigate through each segment. The system independently performs the search across the complete set of segments and presents results, thereby improving ease of operation by eliminating manual investigation while reducing the time required to examine all segments
3Extent of automation
If segment player automatically plays all segments, then automatic image flow is provided, but the user must stop and scroll back to find the event segment
Solution Approach 1:
The system provides feedback by automatically detecting events during segment playback and immediately indicating their locations. When a seldom event matching the search criteria is detected, the system provides feedback through visual markers, audio alerts, or automatic positioning, allowing the user to quickly locate the event segment without manually stopping and scrolling through segments. This feedback mechanism maintains high automation while improving ease of operation for event retrieval
Solution Approach 2:
The oscilloscope performs preliminary identification of event segments during the automatic playback process. Before the user needs to locate a specific event, the system has already scanned all segments, identified those containing seldom events, and prepared their locations for immediate retrieval. This preliminary action ensures that when playback occurs, event segments are readily identifiable, eliminating the need for manual stopping and scrolling while maintaining smooth automatic playback
Data Source
AI summary
A method for analyzing a measured signal is described wherein at least a first segment and a second segment of said measured signal are acquired by a measurement device. At least said first segment and said second segment are stored in an acquisition memory of said measurement device. A search criterion is applied on at least said first segment and said second segment. At least a first timing event corresponding to said search criterion is stored into a memory, said first timing event being found in at least one of said segments. Further, an oscilloscope is described.