Analog Indicator Redrawing via Region Segmentation

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Conventional display devices for measuring instruments face challenges in rapidly updating the display screen for analog indicators, requiring significant processing and storage of large image data, which slows down the updating process and increases memory overhead.

Innovation Solution

A display device with a graphic display module that calculates and redraws only the region of the screen that has changed, using a processing unit to determine the coordinates of the analog indicator and scale plate, and redraws a rectangular region encompassing these coordinates, reducing the amount of data to be processed and stored.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Speed

If the entire surface of the display screen is sequentially updated to display the analog indicator, then the display can be updated, but the amount of data to be processed is enormous and updating speed is slow

Engineering Contradiction:

Improvedisplay updating speedVSAvoidamount of image data to be processed

Core Design Contradiction:

SpeedVSQuantity of substance

Solution Approach 1:

The display screen is divided into multiple pixel regions, and only the specific pixel regions that need to be updated (such as the pointer region and scale plate region) are refreshed instead of the entire screen. This segmentation approach significantly reduces the amount of data processing required while maintaining the visual integrity of the analog indicator display.

Inventive Principle:

Principle #1Segmentation

2Adaptability or versatility

If a graphic liquid crystal module capable of displaying any figure is used to show the analog indicator, then the analog display can be achieved, but the processing load increases and updating becomes slower

Engineering Contradiction:

Improvedisplay flexibility for analog indicatorVSAvoiddisplay updating efficiency

Core Design Contradiction:

Adaptability or versatilityVSProductivity

Solution Approach 1:

The analog indicator display is segmented into functional regions (pointer region, scale plate region, etc.), and only these specific regions are updated when the measured value changes. This maintains the versatility of the graphic liquid crystal module while dramatically improving updating efficiency by avoiding redundant processing of unchanged areas.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Different regions of the display screen are treated differently based on their update requirements. The pointer region and scale plate region are updated with high frequency when measurement values change, while other static regions remain unchanged. This local quality approach optimizes the balance between display adaptability and updating productivity.

Inventive Principle:

Principle #3Local quality

Data Source

PatentUS9812094B2Display device for measuring instrument, measuring instrument, method of analogically displaying measured value, and program of analogically displaying measured value

Publication Date: 2017.11.07 MITUTOYO CORP

AI summary

A display device for a measuring instrument, includes: a display screen of a graphic display module; and a processing unit for drawing on the display screen a figure changed in position or shape in response to change in measured value, the processing unit is configured to: calculate first coordinates on the display screen based on a pre-changed value of the measured value; draw at least a part of the figure on the display screen based on the first coordinate; calculate second coordinates on the display screen based on a post-changed value of the measured value; acquire as a redrawing region a region on the display screen based on the first coordinates and the second coordinates; and redraw the redrawing region based on a redrawing function for redrawing only a specified region on the display screen.