Display-Based Delay Measurement Using Segmented Time Information
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing systems for remotely operating robots face challenges in accurately measuring the delay time between image capture and display due to overlapping time information in captured images, leading to inaccurate delay time measurements.
Innovation Solution
A method involving a first display process to repeatedly display an image with multiple time information items, a first image capturing process to generate a second image, a second display process to display the second image, and a measurement process to calculate the delay time based on these images, using a measurement system with controllers and a recording medium to execute the processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single time information item is displayed in the captured image, then the measurement process is simple, but the time information may overlap with previous frames causing unreadability and measurement failure
Solution Approach 1:
The time information is divided into multiple separate items (first time information, second time information, third time information) displayed in different regions of the image. This segmentation ensures that when one time item overlaps with previous frames, other time items remain readable, thereby resolving the contradiction between measurement simplicity and time information reliability.
2Reliability
If multiple time information items are displayed in different regions, then the reliability of time information is improved, but the device complexity increases
Solution Approach 1:
Multiple time information items serve as intermediaries to ensure at least one readable time reference exists. The measurement process uses these multiple time items as backup references, where if one time item is unreadable, the system can fall back to another time item, thus improving reliability without requiring complex alternative measurement procedures.
3Measurement precision
If time information is updated frequently, then the measurement precision is improved, but the likelihood of overlapping and unreadability increases
Solution Approach 1:
Time information is segmented into multiple items updated at different rates or displayed in different regions. This allows the system to maintain high measurement precision through frequent updates while ensuring reliability through spatial distribution, where not all time items overlap simultaneously even when updated frequently.
Solution Approach 2:
The solution transitions from a single time dimension to multiple spatial dimensions by displaying time information in different image regions. This dimensional change allows frequent time updates to maintain precision while the spatial separation prevents complete overlap, preserving readability reliability.
Data Source
AI summary
A measurement method according to one aspect of the present disclosure is executed by a computer, and includes: a first display process of repeatedly displaying, on a first display device, a first image including a plurality of items of time information each indicating a time, while sequentially updating the plurality of items of time information one by one; a first image capturing process of generating a second image by causing a first image capturing device to capture the first image displayed on the first display device; a second display process of displaying the second image on a second display device; and a measurement process of measuring, based on the first image and the second image, a delay time from when the first image capturing device captures the first image to when the second image is displayed on the second display device.