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PCAAD—an object‐oriented expert system for assembly of printed circuit boards
Author(s) -
Padhy Sisir K.,
Dwivedi Suren N.
Publication year - 1992
Publication title -
expert systems
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.365
H-Index - 38
eISSN - 1468-0394
pISSN - 0266-4720
DOI - 10.1111/j.1468-0394.1992.tb00381.x
Subject(s) - printed circuit board , computer science , smalltalk , object (grammar) , domain (mathematical analysis) , engineering drawing , manufacturing engineering , object oriented programming , artificial intelligence , engineering , mathematical analysis , mathematics , programming language , operating system
Electronics manufacturing is the fastest growing segment of the manufacturing domain today. The rapid change in printed circuit board manufacturing has been possible with the induction of surface‐mounted components and robotic assembly. The high density packaging capability of surface‐mounted technology has contributed enormously to the development of new trends in printed circuit board manufacturing. PCAAD—Printed Circuit Board Assembly Advisor—is an expert system developed to capture this new technology and its interaction with the existing through‐hole‐mounting technology. In building the system, rules and guidelines pertaining to assembly are formulated and incorporated into the knowledge‐base. The system is built on an object‐oriented paradigm. The object‐oriented approach, Smalltalk‐80, the object‐oriented language and the hierarchical rule structure paradigm are briefly discussed. A rating system is also introduced to rank various assembly designs. PCAAD can advise whether or not to proceed with assembly with a particular assembly design, and suggests assembly modification at the early stage of design to eliminate the assembly problems in the later phase of board production.