Applying object modelling technique to automated visual inspection of automotive compressor parts omission

Automated visual inspection (AVI) system in modem manufacturing fields is c omplex in its infrastructure and is variable in the user's requirements. To make a high quality AVI system within a reasonable cost, an object-oriente d approach in modelling and design should be applied. This research documen ts the result of the Object Oriented Automated Visual Inspection (OOAVI) Sy stem, an object-oriented application to an automated visual inspection syst em. We have used Rumbaugh's Object Modelling Technique (OMT) for automated visual inspection system modelling and design to develop an OOAVI system fo r inspecting automotive compressor parts omission. The OOAVI system we deve loped controls two different manufacturing cells simultaneously to inspect a shaft part and a cylinder part of compressor respectively with multitaski ng scheduling. Primitive machine vision operations and heuristics from the model are applied to perform the inspection of the parts. We have found tha t object-oriented design and modelling has diminished the time and cost for AVI system development. (C) 1999 Elsevier Science Ltd. All rights reserved .