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Automated Optical Inspection Expert System Design and Implementation

Author: WangXiaoFan
Tutor: WuJianJie
School: Huazhong University of Science and Technology
Course: Software Engineering
Keywords: Automated Optical Inspection Expert System Code of Regulations File reasoning File correction
CLC: TP182
Type: Master's thesis
Year: 2011
Downloads: 29
Quote: 0
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Abstract


In order to solve the existing automatic optical inspection machines in the production line file creation and management issues, improve the detection efficiency of file creation and automation , the need to establish the use of expert systems , for automatic optical inspection commenced (Auto Optical Inspector) expert system application research . Users of the system into general use of personnel and knowledge engineer , the former is primarily responsible for operation of the system ; latter system is mainly responsible for the acquisition of knowledge . System consists of three modules : I / O interface module , the results display module and knowledge base editing module . I / O interface module functions: retrieval rules and amend rules input interface, inference engine and components derived results show graphics and interface detection frame image display interface ; Results display module functions: the rules of inference based on the input of the corresponding results , while the reasoning process and intermediate results are stored in the consolidated database ; knowledge edit module functions as follows: according to the basic parameters and the detection frame component parameters saved to the knowledge base of knowledge acquisition . AOI expert system, the system to address the key include: Knowledge of structural design , Gerber file decoding, knowledge reasoning and file correction . Among them, the knowledge base is to solve the structural design of automatic optical inspection expert system knowledge base storage components of the parameters , the expert system inference module and correction module parameters according to the knowledge of the reasoning and correction operations ; Gerber file is decoded steel plate cutting machine to decode the files , according to Gerber file archives made ‚Äč‚Äčcomponents can achieve pin shape, orientation and other parameters ; knowledge reasoning is the core module of the expert system , according to the rules of information will be read into the correct conclusion inferred for users. File Fix expert system knowledge base for similar elements of the old file to the new file storage corrected , greatly improving the efficiency of the new knowledge base . The different types of PCB tests show that automated optical inspection expert system to achieve the desired design requirements, its operational stability and accuracy are up to user needs, research and development department has been applied to the device.

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CLC: > Industrial Technology > Automation technology,computer technology > Automated basic theory > Artificial intelligence theory > Expert systems, knowledge engineering
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