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http://dx.doi.org/10.6109/jkiice.2013.17.4.822

Implementation of PLC-Based Multi-modem for Process Automation of Non-destructive Inspection  

Jung, Jun Hwan (경상대학교, (주)리노)
Jun, Ho Ik ((주)매트론)
Kim, Hyun-Sik ((주)매트론)
Kang, Seog Geun (경상대학교)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.17, no.4, 2013 , pp. 822-828 More about this Journal
Abstract
In this paper, a multi-modem for process automation of non-destructive inspection (NDI) which possibly generates various kinds of data is implemented and verified. Here, a variety of data such as control signals, text data, image data generated by inspection devices, sensors, computers are transmitted to the multi-modem via serial, Ethernet, and coaxial cable. We exploit a communication network in which powerlines are used as backbone transmission media. Thus, the implemented multi-modem has various ports and corresponding interfaces for data transmission. As a result of practical experiments, the multi-modem maintains almost constant data rate with little waveform distortion. In addition, the experiments confirm that the modem operates normally under extreme variation of temperature. It is, therefore, considered that the multi-modem can contribute significantly to implement powerline communication (PLC)-based process automation for NDI in which various kinds of data are practically generated.
Keywords
Non-destructive inspection (NDI); process automation; powerline communication (PLC); multi-modem; serial communication;
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