Physiological Display Device Segmenting Integer and Fractional Digits
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Solution Overview
Problem
Existing devices for displaying physiological information, such as pulse oximeters, often fail to adapt the number of significant digits displayed effectively, leading to reduced visibility and inefficient use of display space, especially when switching between displaying and hiding fractional portions of numerical values.
Innovation Solution
A physiological information display device and method that maintains the position and size of the area for the integer portion of a numerical value while adjusting the number of significant digits by displaying or hiding the fractional portion in a smaller area, ensuring the integer portion's visibility and optimizing display space usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the number of significant digits is increased to display more precise physiological information, then the precision of information representation is improved, but the display area occupied increases and may reduce visibility of other elements
Solution Approach 1:
The numerical value is segmented into integer portion and fractional portion, which are displayed in separate areas. The integer portion occupies a fixed first area, while the fractional portion is displayed in a second area only when needed. This segmentation allows the display to show precise physiological information when required without permanently occupying additional display area.
Solution Approach 2:
The display dynamically adjusts the number of significant digits based on the numerical value range. When the physiological parameter exceeds a reference value, the fractional portion is displayed; otherwise, only the integer portion is shown. This dynamic adjustment optimizes the use of display area while maintaining necessary precision.
2Loss of information
If the fractional portion is always displayed to maintain visibility, then the visibility of precise information is improved, but the display area usage becomes inefficient when high precision is not needed
Solution Approach 1:
The display system dynamically switches between displaying one or two significant digits based on the current physiological parameter value. When the value exceeds the reference threshold, the fractional portion becomes visible; when it doesn't exceed, the fractional portion is hidden. This ensures information visibility is maintained only when necessary, optimizing display space efficiency.
3Loss of information
If the display area for fractional portion is made larger to improve readability, then the visibility of fractional digits is improved, but the available space for integer portion may be reduced
Solution Approach 1:
The display area is segmented into a fixed first area for the integer portion and a variable second area for the fractional portion. The first area maintains constant position and size to ensure integer portion readability. The second area is allocated only when the fractional portion needs to be displayed, and its size is optimized for fractional digit readability without encroaching on the integer portion's fixed area.
Data Source
AI summary
A physiological information display device includes:a display on which a numerical value corresponding to physiological information of a subject is displayed;a memory that stores a program; anda processor that executes the program to change a number of significant digits of the numerical value that is to be displayed on the display.In the device, the numerical value contains a first digit and a second digit, the first digit is always displayed in a first size and in a first area of the display, the number of significant digits is changed depending on whether the second digit is displayed in a second size and in a second area of the display or is not displayed, the second size being smaller than the first size, and a position and size of the first area are not changed even when the second digit is displayed.