Waveform Display Device Scroll Cursor Adjustment
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Solution Overview
Problem
Existing waveform display devices with program control functions lack operability in changing the display range, making it difficult for users to retroactively observe actual measurement waveforms and confirm future changes in program patterns.
Innovation Solution
A waveform display device with an operation accepting unit for user input and a display controller that generates a waveform display screen with superimposed program pattern and actual measurement waveforms, allowing the cursor to be moved via scroll operations to adjust the display range between past and future time areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the waveform display device automatically adjusts the display range based on time passage, then the display automatically shows past and future areas, but the user cannot intuitively adjust the display range to observe specific time periods
Solution Approach 1:
The cursor position is made dynamically adjustable through scroll operations, allowing the display range to be flexibly changed according to user needs. The system transitions from a fixed automatic display range to a dynamic adjustable one, improving user operability while maintaining manageable complexity through intuitive interaction mechanisms.
2Ease of operation
If the cursor position is fixed automatically, then the display range is determined by time passage, but the user cannot change the display range to observe specific time periods
Solution Approach 1:
The system provides self-service functionality where the cursor automatically follows the measurement waveform during normal operation, but also enables user-initiated cursor movement through scroll operations. This dual-mode operation allows the system to maintain automatic time-based display while providing on-demand user control for observing specific time periods without adding excessive control complexity.
Data Source
AI summary
A waveform display device includes: an operation accepting unit for accepting operation by a user; and a display controller for generating waveform display screen including a program pattern waveform for program control and an actual measurement waveform based on measurement data obtained as a result of the program control, with the program pattern waveform and the actual measurement waveform being superimposed on each other, and a cursor indicating a section between a past time area showing a program pattern waveform and an actual measurement waveform in the past time and a future time area showing a future program pattern waveform. The operation accepting unit is configured to accept scroll operation for changing a position of the cursor in the waveform display screen. The display controller is configured to change the position of the cursor in the waveform display screen in accordance with the scroll operation.