Journal of the Korea Safety Management & Science (대한안전경영과학회지)

Korea Safety Management & Science (대한안전경영과학회)
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Auto-Generation of Diagnosis Program of PLC-based Automobile Body Assembly Line for Safety Monitoring

PLC기반 차체조립라인의 안전감시를 위한 진단프로그램 생성에 관한 연구

  • Park, Chang-Mok (Dept. of Technology & Systems Management, Induk University)
  • 박창목 (인덕대학 테크노경영과)
  • Received : 2010.04.15
  • Accepted : 2010.06.01
  • Published : 2010.06.30
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Abstract

In an automated industry PLC plays a central role to control the manufacturing system. Therefore, fault free operation of PLC controlled manufacturing system is essential in order to maximize a firm's productivity. On the contrary, distributed nature of manufacturing system and growing complexity of the PLC programs presented a challenging task of designing a rapid fault finding system for an uninterrupted process operation. Hence, designing an intelligent monitoring, and diagnosis system is needed for smooth functioning of the operation process. In this paper, we propose a method to continuously acquire a stream of PLC signal data from the normal operational PLC-based manufacturing system and to generate diagnosis model from the observed PLC signal data. Consequently, the generated diagnosis model is used for distinguish the possible abnormalities of manufacturing system. To verify the proposed method, we provided a suitable case study of an assembly line.

Keywords

References

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