3D Wiring Interference Check via Elliptical Movable Range

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Solution Overview

Problem

Existing interference check systems for three-dimensional models, particularly in wiring design, fail to accurately calculate movable ranges and determine interference with other components, especially when wire lengths exceed the length of straight lines connecting constraint tools, and require manual user intervention for determining interference, increasing user burden.

Innovation Solution

The system sets two fixed points in a wiring model as focal points to generate a set of predetermined points such that the sum of distances from these focal points to any point on the wiring model equals the wiring length, enabling the calculation of movable ranges and automatic interference checks with other components.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If the movable range is calculated using straight lines connecting constraint tools, then the calculation is simple, but the accuracy is insufficient when wiring length exceeds the straight line distance

Engineering Contradiction:
Improvemovable range calculation accuracyVSAvoidcalculation method complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent segments the wiring path into multiple sections by identifying constraint tools along the wiring route. Each segment connects two adjacent constraint tools, allowing the system to calculate movable ranges for each segment individually. This segmentation enables accurate tracking of wiring paths even when the total wiring length exceeds the straight line distance between start and end points, resolving the accuracy issue while maintaining manageable calculation complexity through modular processing.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent transitions from two-dimensional straight line calculations to three-dimensional spatial calculations by considering the actual three-dimensional routing of wirings through multiple constraint points. This dimensional expansion allows the system to account for vertical and lateral deviations from straight lines, accurately representing real-world wiring layouts while using standard 3D coordinate geometry to avoid excessive computational complexity.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Ease of operation

If manual user intervention is used to determine interference, then the determination can be flexible, but the user burden increases

Engineering Contradiction:
Improveuser burdenVSAvoidinterference detection reliability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent implements self-service by enabling the system to automatically perform interference detection using the calculated movable ranges. The system compares the movable range of each wiring segment with the positions of other components in the three-dimensional space, automatically determining interference conditions without requiring user intervention. This automation maintains high reliability through systematic geometric calculations while significantly reducing user burden by eliminating manual checking steps.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent replaces manual visual inspection and judgment (mechanical human operation) with automated computer-based geometric calculations. The system uses algorithmic comparison of coordinate data and spatial relationships to detect interference, substituting human cognitive processes with deterministic computational methods. This substitution ensures consistent and reliable interference detection while freeing users from burdensome manual tasks.

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

Data Source

PatentUS10296697B2Interference check system
Publication Date: 2019.05.21 LANDMARK TECH
  • US10296697B2 patent drawing
  • US10296697B2 patent drawing
  • US10296697B2 patent drawing

AI summary

The present invention aims to increase the accuracy of an interference check and is characterized by including: a movable range calculation unit that, in a wiring model which is a three-dimensional shape model of wiring in three-dimensional model data, sets two fixed points in the wiring model as focal points and generates a set of predetermined points such that the sum of a distance from one of the focal points to a predetermined point and a distance from the other of the focal points to the predetermined point becomes the length of the wiring model; a movable range list generator that sets the inside of the set of predetermined points as a movable range of the wiring; and a display step unit that causes the set movable range to be displayed on a display unit.