Automated Inspection List Generation from 3D Drawing Tree Structures

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Solution Overview

Problem

The manual generation of inspection item lists from three-dimensional drawing data is time-consuming and inefficient, affecting work efficiency in checking whether produced articles meet indicated requirements.

Innovation Solution

A list generating apparatus equipped with a tree structure analyzer and a list generator that analyzes hierarchical tree structures in three-dimensional drawing data to automatically generate inspection item lists, including component part, special process, and design characteristics lists, using standard and condition databases.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If manual generation method is used, then flexibility and understanding of requirements are maintained, but work efficiency and time consumption deteriorate

Engineering Contradiction:
Improvework efficiencyVSAvoidtime consumption
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

The patent replaces the manual mechanical process of reading drawing data and creating inspection items with an automated computer-based system. The tree structure analyzer automatically parses the hierarchical tree structure of three-dimensional drawing data, and the list generator automatically creates inspection item lists, eliminating manual labor and significantly improving productivity while reducing time consumption.

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

Solution Approach 2:

The system enables self-service by allowing the inspection item list to be generated automatically from the drawing data without human intervention. The tree structure analyzer and list generator work autonomously to extract requirements and generate inspection items, making the process self-sufficient and dramatically increasing work efficiency.

Inventive Principle:
Principle #25Self-service

2Productivity

If automated generation is implemented, then productivity improves, but accuracy and reliability may deteriorate

Engineering Contradiction:
Improvegeneration speedVSAvoidaccuracy of inspection items
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The system incorporates feedback mechanisms where the tree structure analyzer continuously monitors the hierarchical structure of drawing data, and the list generator uses this analyzed information to create accurate inspection items. The automated process includes validation and verification steps that ensure the generated inspection items accurately reflect the original drawing requirements, maintaining reliability while improving productivity.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The tree structure analyzer acts as an intermediary between the raw drawing data and the inspection item list. It carefully parses and analyzes the hierarchical tree structure, extracting requirements accurately before passing them to the list generator. This intermediary process ensures that no information is lost or misinterpreted, maintaining accuracy while enabling automated high-speed generation.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Productivity

If automated analysis is used, then work efficiency improves, but device complexity increases

Engineering Contradiction:
Improveinspection list generation efficiencyVSAvoidsystem structure complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The system is divided into distinct functional modules: the tree structure analyzer and the list generator. Each module has a specific function - the analyzer parses the hierarchical tree structure of drawing data, while the generator creates inspection items based on the analyzed information. This segmentation makes the complex automated system manageable and maintainable while achieving high productivity in inspection list generation.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP4202751A1List generating apparatus
Publication Date: 2023.06.28 SUBARU CORP
  • EP4202751A1 patent drawingFigure 1
  • EP4202751A1 patent drawingFigure 2
  • EP4202751A1 patent drawingFigure 3

AI summary

A list generating apparatus (1) includes a tree structure analyzer (21) and a list generator (23). The tree structure analyzer (21) is configured to make an analysis of a hierarchical tree structure (31) included in three-dimensional drawing data (10). The list generator (23) is configured to generate an inspection item list (13) on the basis of information obtained by the analysis of the hierarchical tree structure (31).