1. Mechatronics Technology Convergence R&D Group, Korea Institute of Industrial Technology, 320 Techno sunhwan-ro, yuga-myeon, Dalseong-gun, Daegu 42994, Republic of Korea
2. Precision Machining Control Group, Korea Institute of Industrial Technology, 42-7, Baegyang-daero 804beon-gil, Sasang-gu, Busan 46938, Republic of Korea