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Lee, Jai-Kyung;Lee, Seung-Woo;Nam, So-Jeong;Park, Jong-Kweon
- Transactions of the Korean Society of Mechanical Engineers A
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- v.35 no.1
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- pp.39-45
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- 2011
The processes for manufacturing a product differ depending on the characteristics of the product, and the information used or generated by the processes also varies. To implement a flexible and configurable Manufacturing Execution System (MES), a Data Acquisition System (DAS) that takes into consideration the characteristics of the manufacturing system is required. In this study, we design an information acquisition system that can process the information on equipments of a shop floor in real-time and that is adaptive to the changes in the shop floor. The system has a data parser module for flexible processing of the equipment status, a data mapper module to link the equipment status with a manufacturing process, and an SOA-based data integration module to transmit the processed information to other information systems such as MES and ERP. From the results of pilot study, its maintenance is easy even if new equipment or new manufacturing processes are adopted or if the equipments are rearranged.
https://doi.org/10.3795/KSME-A.2011.35.1.039 인용 PDF KSCI

Nam, So-Jeong;Lee, Jai-Kyung;Lee, Sung-Woo;Park, Jong-Kweon
- Transactions of the Korean Society of Mechanical Engineers A
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- v.35 no.2
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- pp.149-156
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- 2011
There is much information of equipment in shop floor because the manufacturing processes are different as the equipment within the manufacturing process is varied. To provide effective process information to MES and other production systems, the DAS requires an equipment monitoring system that takes into account the characteristics of the equipment on the shop floor. In this study, we proposed some methods for collecting the required information about various equipments on a shop floor. The equipments such as CNC can be interfaced with the DAS by using a PLC-based method and a sensor-based interface board can be used to interface general equipments. The proposed methods can be used to collect information on the shop floor in real-time. Moreover these methods are very adaptive and can be easily modified according to the changes made to the shop floor. The information about a real shop floor acquired by employing these methods is saved in a database and the can be provided to a supervisor and MES so that they are aware of the status of the shop floor.
https://doi.org/10.3795/KSME-A.2011.35.2.149 인용 PDF KSCI

Lee, Seung-Woo;Lee, Jai-Kyung;Nam, So-Jung;Park, Jong-Kweon
- Transactions of the Korean Society of Mechanical Engineers A
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- v.35 no.9
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- pp.1063-1070
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- 2011
The manufacturing execution system (MES) for product production handles different production processes according to the product characteristics and different types of data according to the process being considered. For efficiently providing the data pertaining to production equipment to production systems such as the MES, data collection through the equipment interface is required for obtaining the production data pertaining to field equipment. In this paper, a method is proposed for collecting the production data through the equipment interface in order to collect the various types of production-equipment data from the field. The proposed method is applied to a real manufacturing system to verify its efficiency. A more powerful MES can be constructed with a data acquisition system that acquires the status data at the shop-floor level.
https://doi.org/10.3795/KSME-A.2011.35.9.1063 인용 PDF KSCI