Time Series Data Display Control Device Using Perspective Projection
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Solution Overview
Problem
Existing time series data display technologies face challenges in easily recognizing data content at an arbitrary time point, particularly in three-dimensional displays, where data overlap is reduced but detailed changes are harder to discern compared to two-dimensional displays.
Innovation Solution
A time series data display control device and method that switches between two-dimensional and three-dimensional display modes, using perspective laws to converge straight lines parallel to the time axis, and includes a summary window for displaying data content at a designated time point in the three-dimensional mode, allowing for easier recognition of data content across both display types.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If time series data is displayed in three-dimensional mode using a virtual cylinder, then data overlap is reduced and visibility of multiple data items is improved, but detailed data changes at arbitrary time points become harder to recognize
Solution Approach 1:
The patent transitions from two-dimensional display to three-dimensional display by allocating time series data to the circumferential surface of a virtual cylinder. This dimensional change allows multiple data items to be displayed simultaneously without overlap while maintaining the ability to recognize detailed changes through strategic positioning of data relative to the observer's viewpoint.
Solution Approach 2:
The patent introduces a viewpoint positioning mechanism as an intermediary between the observer and the three-dimensional data display. By controlling the observer's viewpoint position relative to the virtual cylinder, the system enables selective observation of different data aspects - overall trends from certain positions and detailed changes from others - thus resolving the contradiction between comprehensive visibility and detailed recognition.
2Difficulty of detecting and measuring
If time series data is displayed in two-dimensional mode, then detailed data changes are easily recognized, but data overlap occurs when multiple data items are displayed
Solution Approach 1:
The patent resolves the data overlap problem in two-dimensional display by transitioning to three-dimensional display. By allocating multiple time series data items to the circumferential surface of a virtual cylinder, the system provides sufficient spatial separation for each data item while maintaining clear visibility of detailed changes through controlled viewpoint positioning.
3Area of stationary object
If a virtual cylinder is used to allocate time series data, then the allocation region is enlarged and data overlap is reduced, but the device complexity increases
Solution Approach 1:
The patent utilizes the third dimension by employing a virtual cylinder to allocate time series data on its circumferential surface. This approach significantly enlarges the allocation region compared to two-dimensional display while managing complexity through software-based implementation of the three-dimensional coordinate system and data mapping algorithms.
Data Source
AI summary
A main display region 41 in which medical care data on a plurality of items is displayed is provided on the display screen 15. The main display region 41 may be displayed in two display modes of a two-dimensional display mode and a three-dimensional display mode in which a two-dimensional plane on which time series data is displayed is three-dimensionally displayed using the laws of perspective. In the three-dimensional display mode, a summary window for displaying a summary of data content of the plurality of pieces of time series data at an arbitrary point in time designated on a time axis.