Vision System Color Lighting Voltage Optimization

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Solution Overview

Problem

Current vision systems employing color lighting require cumbersome and time-consuming manual adjustments of voltage values for optimal image quality, especially when examining different objects, leading to increased costs due to the need for separate systems for each object and prolonged processing times.

Innovation Solution

A method for rapidly searching for optimal voltage values in a vision system using a probe defined by multiple lighting units of different wavelengths, calculating minus standard deviations, and iteratively refining test probe points to maximize image quality through a series of comparisons and adjustments.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If manual voltage adjustment is performed for each lighting condition, then optimal image quality can be achieved, but the process becomes cumbersome and time-consuming

Engineering Contradiction:

Improveimage qualityVSAvoidadjustment time

Core Design Contradiction:

Manufacturing precisionVSLoss of time

Solution Approach 1:

The system automatically adjusts voltage values for multiple lightings by calculating minus standard deviations and iteratively refining probe points, eliminating the need for manual adjustment while achieving optimal image quality

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The method systematically varies voltage parameters across multiple lightings by defining probe points and iteratively adjusting voltage values to maximize image quality through standard deviation analysis

Inventive Principle:

Principle #35Parameter changes

2Manufacturing precision

If separate vision systems are embedded for each examination target object, then optimal examination can be performed, but equipment costs increase

Engineering Contradiction:

Improveexamination qualityVSAvoidsystem configuration

Core Design Contradiction:

Manufacturing precisionVSDevice complexity

Solution Approach 1:

A single vision system with multiple lightings can examine various target objects by automatically adjusting voltage values for each lighting condition, eliminating the need for separate dedicated systems for each object type

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Manufacturing precision

If voltage values are adjusted by small increments across all ranges, then optimal conditions can be found, but processing time becomes very long

Engineering Contradiction:

Improvevoltage optimizationVSAvoidprocessing speed

Core Design Contradiction:

Manufacturing precisionVSProductivity

Solution Approach 1:

The method performs voltage adjustment only at critical probe points rather than continuously across all ranges, and uses iterative refinement to achieve optimal conditions faster by focusing on the most impactful voltage changes

Inventive Principle:

Principle #16Partial or excessive action

Solution Approach 2:

The system continuously calculates minus standard deviations and iteratively refines probe points in a systematic sequence, maintaining continuous optimization without interruption to efficiently converge on optimal voltage values

Inventive Principle:

Principle #20Continuity of useful action

Data Source

PatentUS9160983B2Method of controlling color lighting in vision system

Publication Date: 2015.10.13 KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY

AI summary

A method of controlling color lighting in a vision system is provided which is capable of rapidly searching for a voltage value which allows an optimal product image to be obtained in a vision system including a plurality of lightings. In accordance with an embodiment, a voltage value allowing an optimal product image to be obtained can rapidly searched for in a vision system including a plurality of lightings.