1. Department of Electronics Engineering; Hanseo University; 46 Hanseo 1-ro, Haemi-Myun Seosan City, Chungnam Korea
2. Department of Electronics Engineering; Korea National University of Transportation; 50 Daehak-ro Chungju City, Chungbuk Korea
3. Department of Control and Instrumentation Engineering & Department of IT Convergence; Korea National University of Transportation; 50 Daehak-ro Chungju City, Chungbuk Korea