Circuit Board Production Sequencing by Component Commonality
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Solution Overview
Problem
Existing production order determination methods in board production facilities often result in prolonged facility stops due to insufficient preparation time for producing circuit boards with lower production volumes, as they prioritize production volume over component type commonality, leading to inefficient setup change work.
Innovation Solution
A production order determination system that selects circuit boards with the shortest production time and highest component commonality to facilitate seamless transitions between board types, reducing the need for extensive setup changes and facility downtime.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If circuit boards with large production volume are produced first as reference, then production volume efficiency is improved, but production time for small volume boards becomes insufficient leading to facility stops
Solution Approach 1:
The patent changes the determination parameter from production volume to component commonality degree. The production order determination section calculates component commonality between different board types and uses this metric to sequence production, ensuring that boards with higher component overlap are produced consecutively, thereby reducing setup changes and facility stops
Solution Approach 2:
The system performs preliminary calculation of component commonality degrees between all board type combinations before production begins. This advance analysis allows the creation of an optimized production sequence that anticipates and prevents facility stops by ensuring sufficient preparation time for each board type transition
2Productivity
If production preparation is performed during short production time of small volume boards, then production continuity is improved, but component type complexity increases preparation difficulty
Solution Approach 1:
The patent transforms the complexity management approach by changing from tracking individual component types to calculating aggregate component commonality degrees. This parameter transformation simplifies the decision-making process while maintaining awareness of component differences through the commonality metric
Solution Approach 2:
The component commonality degree calculation serves multiple functions simultaneously: it identifies similar boards for sequential production, determines optimal production sequencing, and predicts setup change requirements. This universal metric handles the complexity of diverse component types across multiple board varieties
Data Source
AI summary
A system for determining a production order includes a first circuit board selection section, and a first circuit board determination section. The first circuit board determination section calculates a degree of commonality between component types of multiple components used when the circuit board of the board type selected by the first circuit board selection section is produced and component types of multiple components used when a circuit board of a board type not selected by the first circuit board selection section is produced, and determines a circuit board of a board type having the highest calculated degree of commonality in components as the circuit board of the board type to be produced next to the circuit board of the board type selected by the first circuit board selection section.