Automated Item Inspection Using Image Analysis for Defect Detection

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Solution Overview

Problem

Current methods for inspecting items in manufacturing processes are costly and prone to variability due to human skill and fatigue, leading to inconsistent quality and reduced productivity.

Innovation Solution

An item inspection apparatus with an image obtaining section and a control section that automatically determines defects by comparing captured images with reference data, using shape-based characteristics and statistical methods to perform precise inspections for position, shape, size, foreign substances, and surface defects.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If manual inspection by workers is used, then inspection can be performed with simple equipment, but inspection cost increases and quality consistency deteriorates due to human skill level and fatigue

Engineering Contradiction:
Improvequality consistencyVSAvoidinspection equipment complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent replaces the manual mechanical inspection system with an automated image processing system. The control section captures images of items using an image capturing device and automatically analyzes them to detect defects, replacing the mechanical action of workers visually inspecting items. This substitution eliminates human factors like skill level and fatigue that cause quality inconsistency, while maintaining inspection effectiveness through automated image analysis algorithms.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Productivity

If manual inspection by workers is used, then equipment cost is low, but inspection speed decreases and productivity is reduced

Engineering Contradiction:
Improveinspection speedVSAvoidinspection equipment complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent replaces the slow manual inspection process with an automated image processing system that can analyze multiple items rapidly. The control section automatically captures and processes images, detecting defects without the time constraints of human workers. This mechanical-to-automated substitution dramatically increases inspection speed and productivity while the complexity is managed through integrated software algorithms that automate the analysis process.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Productivity

If automated inspection is introduced, then inspection speed and productivity improve, but inspection cost increases due to equipment investment

Engineering Contradiction:
Improveinspection speedVSAvoidmanufacturing cost
Core Design Contradiction:
ProductivityVSEase of manufacture

Solution Approach 1:

The patent uses image capturing to create digital copies of physical items for inspection purposes. Instead of requiring complex physical measurement devices or destructive testing methods, the system captures visual copies and analyzes them digitally. This copying approach reduces the need for expensive specialized inspection equipment while maintaining high inspection speed and accuracy, as standard imaging devices can be used rather than custom-built measurement instruments.

Inventive Principle:
Principle #26Copying

Data Source

PatentUS10713775B2Item inspecting device
Publication Date: 2020.07.14 KOHYOUNG TECH
  • US10713775B2 patent drawing
  • US10713775B2 patent drawing
  • US10713775B2 patent drawing

AI summary

An item inspection apparatus includes an image obtaining section and a control section. The image obtaining section obtains a captured image of at least a part of an item. The control section determines whether the item is defective by using the captured image of the item. The control section performs a first inspection for at least one of position, shape and size with respect to at least one of a first element and a second element. The first element has a predetermined shape and is formed on the item and the second element includes at least one of an opening, a depression and a through-hole formed in the item. The control section performs a second inspection for at least one of foreign substance adhesion, scratch and surface stain on the item. Thus, the defect inspection may be performed more precisely and effectively.