Time Series Data Display Device Using Density Maps
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Solution Overview
Problem
Existing time series data display methods for industrial machines struggle to clearly visualize data acquired in multiple modes and over long, unbalanced time periods, making it difficult for operators to grasp distribution patterns and change points, especially when data is split or overlapping.
Innovation Solution
A time series data display device that calculates and displays the frequency of detection values using color-coding, providing a general display of frequency or density and allowing for detailed individual value visualization, enabling operators to distinguish between different modes and change points.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If time series data is displayed using a line graph connecting detected values, then the data can be visualized continuously, but the distribution of values and outliers become difficult to grasp and may be hidden
Solution Approach 1:
The patent transforms the one-dimensional line graph into a two-dimensional density map where the x-axis represents time, the y-axis represents data values, and the color intensity represents the frequency/density of occurrences. This dimensional addition allows simultaneous visualization of temporal trends and value distributions without hiding outliers
Solution Approach 2:
The patent applies color-coding to represent the frequency or density of detected values at different positions. Areas with higher frequency are displayed with different colors or intensities, enabling operators to intuitively grasp the distribution of values and identify patterns that would be invisible in traditional line graphs
2Adaptability or versatility
If multiple pieces of time series data are displayed by superposition, then comprehensive monitoring is achieved, but the lines overlap and the overall distribution becomes difficult to grasp
Solution Approach 1:
The patent extends the visualization to three dimensions by adding color intensity as a third dimension to represent frequency. When multiple data sets are superimposed, each contributes to the color intensity at its corresponding time-value position, allowing operators to see the combined distribution pattern without line overlap confusion
Solution Approach 2:
The patent merges multiple time series data sets into a single density map visualization where overlapping data points accumulate their frequency information. This combining approach preserves all data information while presenting it as a unified distribution pattern rather than separate overlapping lines
3Duration of action of stationary object
If time series data acquired over long periods with unbalanced time intervals is displayed in a line graph, then all data points are shown, but change points between different operation modes become difficult to identify
Solution Approach 1:
The patent uses color intensity to highlight regions where data points concentrate, which naturally emphasizes change points between different operation modes. When the machine transitions between modes, the density map shows distinct color patterns that make change points easily identifiable even in long-term unbalanced data
Data Source
AI summary
A time series data display device includes a display unit that outputs display data regarding the time series data. The display unit includes a general display generation unit that generates general display data for general display of a general tendency of the time series data and a detailed display generation unit that generates detailed display data for detailed display of detailed individual values of the time series data. The general display displays frequency or density of individual data configuring the time series data at each position of the time series data on a rendering plane, with a visual effect in accordance with the frequency or the density.