NDLI: Optimization of automated high-speed modular placement machines using knowledge-based systems

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Optimization of automated high-speed modular placement machines using knowledge-based systems

Content Provider	IEEE Xplore Digital Library
Author	Csaszar, P. Nelson, P.C. Rajbhandari, R.R. Tirpak, T.M.
Copyright Year	1998
Abstract	This paper introduces an optimizer for a new family of modular, multistation, walking beam, high-speed chip mounters. The objective is to optimize the machines in a manner that would streamline the use of nozzles and part feeder mechanisms and at the same time increase throughput. The optimization of these machines is a large NP-complete problem, and therefore, a heuristic search method is needed to solve the problem in reasonable time. Four knowledge-based systems are introduced to solve this problem. These systems were designed to emulate human experts, who have optimized these types of machines manually. Benchmarks were performed for 18 industrial test cases. The results show that overall, the knowledge-based systems outperformed software supplied by the vendor of the machine in both feeder slot savings and throughput. This performance represents a key improvement, and a prototype system has been implemented in our industrial partner's factory.
Starting Page	408
Ending Page	417
Page Count	10
File Size	128714
File Format	PDF
ISSN	10946977
Volume Number	30
Issue Number	4
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2000-11-01
Publisher Place	U.S.A.
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Throughput Knowledge based systems Legged locomotion Optimization methods NP-complete problem Search methods Humans Design optimization Benchmark testing Performance evaluation
Content Type	Text
Resource Type	Article
Subject	Control and Systems Engineering Information Systems Electrical and Electronic Engineering Human-Computer Interaction Computer Science Applications Software

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