Automated Device Placement Rule Extraction from CAD Data
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Solution Overview
Problem
Manual input of numerous device placement rules, such as distance and direction between devices, is cumbersome and time-consuming in three-dimensional model design assistance systems.
Innovation Solution
An apparatus that automatically calculates device placement rules from computer-aided design (CAD) data by extracting relative distances and directions, determining correlations with specification values, and creating placement priorities to facilitate efficient design planning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If device placement rules are manually input into the design assistance system, then the system can check design rules and provide assistance, but the enormous number of rules makes manual input time-consuming and labor-intensive
Solution Approach 1:
The system copies device placement rules from existing actual CAD data of past designs. Instead of manually creating rules, the extraction unit automatically retrieves and reuses placement patterns from historical design data, transforming manual rule creation into automated rule copying from proven designs
Solution Approach 2:
The system performs self-service by automatically extracting device placement rules from its own stored actual CAD data. The rule extraction unit autonomously analyzes past design data to generate placement rules without requiring manual intervention, enabling the system to populate its rule database automatically
2Adaptability or versatility
If all device placement rules are manually created and stored, then comprehensive design rule checking is possible, but the complexity and time required for rule creation becomes unmanageable
Solution Approach 1:
The system copies placement rules from multiple actual CAD cases to build a comprehensive rule database. By extracting rules from diverse past designs and storing them with associated priority information, the system achieves broad design rule coverage without manually creating each rule from scratch
Solution Approach 2:
The system performs preliminary action by pre-extracting and storing device placement rules from actual CAD data before they are needed for design checking. The rule extraction unit proactively populates the rule database with patterns from historical data, so that when design checking is performed, comprehensive rules are already available without last-minute manual creation
Data Source
AI summary
In a three-dimensional model design assistance system in which design rules are registered in advance, it is difficult to manually input all of an enormous number of device placement rules including the distances and directions between respective devices in a design. Information relating to the relative distances and relative directions between respective devices included in performance CAD data is extracted. With respect to each of the extracted relative distances and relative directions in a plurality of cases, a correlation with a performance requirement specification value, and a placement priority are calculated and held as device placement rules. At design time, requirement specifications are inputted, accessory devices are determined, and thereafter the devices are placed according to placement priorities on CAD on the basis of the device placement rules.