1. Faculty of Robotics and Design, Osaka Institute of Technology, 1-45 Chayamachi, Kita-ku, Osaka 530-8568, Japan
2. Metro Corporation, 5-12-8 Nishinakajima, Yodogawa-ku, Osaka 532-0011, Japan
3. Graduate School of Information Science and Technology, Osaka University, 1-32 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
4. Mechatronics Research Unit, Faculty of Engineering, Mahasarakham University, 41/20 Khamriang, Kantarawichai, Mahasarakham 44150, Thailand
5. Smart Process Design and Automation Unit, Mahasarakham University, 41/20 Khamriang, Kantarawichai, Mahasarakham 44150, Thailand