Image Measurement Speed Switching for Throughput and Accuracy
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Solution Overview
Problem
Existing image measurement systems face a trade-off between measurement throughput and accuracy, with methods prioritizing either speed or accuracy leading to inefficiencies in production environments.
Innovation Solution
An image measurement system that switches between high-speed and low-speed movement modes, allowing the imaging unit to capture instantaneous image information during low-speed movements, and incorporates strobe lighting for precise imaging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the imaging unit moves at high speed, then measurement throughput is improved, but measurement accuracy deteriorates due to vibration and movement blur
Solution Approach 1:
The system dynamically switches between high-speed movement mode and low-speed movement mode based on operational requirements. The movement control unit adjusts the movement speed of the imaging unit in real-time, allowing high-speed traversal for positioning and low-speed capture for accurate imaging, thereby resolving the contradiction between throughput and accuracy
Solution Approach 2:
The system employs periodic strobe lighting synchronized with the low-speed movement phases to capture instantaneous images. This periodic illumination action allows accurate capture during brief low-speed intervals while maintaining overall high throughput through rapid cycling between high-speed and low-speed modes
2Measurement precision
If the imaging unit moves at low speed to capture accurate images, then measurement accuracy is improved, but measurement throughput deteriorates
Solution Approach 1:
The system uses dynamic speed adjustment where the imaging unit operates at low speed only during critical capture moments and transitions to high-speed movement for positioning and traversal. This dynamic switching ensures accuracy is maintained during imaging while throughput is preserved through efficient high-speed transitions between capture points
Solution Approach 2:
The system maintains continuous measurement operation by eliminating idle waiting time. While the imaging unit moves at low speed for capture, the system continuously prepares the next measurement position and coordinates strobe lighting to capture instantaneous images, ensuring the measurement process continues without interruption and maintaining high throughput
3Measurement precision
If the imaging unit stops at each measurement position, then measurement accuracy is improved by eliminating vibration, but measurement throughput deteriorates due to repeated stopping and starting
Solution Approach 1:
The system uses periodic strobe lighting to capture images during continuous low-speed movement without requiring complete stops. The strobe light freezes motion at precise intervals, achieving vibration-free capture while maintaining continuous movement, thereby eliminating the throughput penalty associated with repeated stopping and starting
Solution Approach 2:
The system skips the traditional stop-wait-capture sequence by rushing through measurement positions at controlled low-speed movement while using strobe lighting to capture instantaneous images. This approach rushes through the measurement process continuously without idle stopping, maintaining both accuracy and throughput
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Improves measurement throughput while maintaining accuracy by reducing vibration-related delays and increasing illumination, thus enhancing productivity without increasing costs.
Implementation Method 1
The imaging unit captures instantaneous image information by switching to low-speed movement mode
Implementation Method 2
The image measurement system may further include an illumination unit capable of irradiating the measurement object with strobe light
Data Source
AI summary
Provided is an image measurement system including: a placement portion on which a measurement object is placed; an imaging unit configured to be relatively movable with respect to the placement portion; a movement control unit that switches between a high-speed movement mode and a low-speed movement mode and allows the imaging unit to relatively move with respect to the placement portion; and an imaging control unit that captures instantaneous image information by the imaging unit on the basis of switching to the low-speed movement mode.