- Volume 17 Issue 5
DOI QR Code
Positioning Accuracy on Robot Self-localization by Real-time Indoor Positioning System with SS Ultrasonic Waves
- Suzuki, Akimasa (Department of Software and Information Science, Iwate Prefectural University) ;
- Kumakura, Ken (Department of Engineering, Soka University) ;
- Tomizuka, Daisuke (Department of Engineering, Soka University) ;
- Hagiwara, Yoshinobu (National Institute of Informatics) ;
- Kim, Youngbok (Pukyong National University) ;
- Choi, Yongwoon (Department of Engineering, Soka University)
- Received : 2013.09.22
- Accepted : 2013.10.06
- Published : 2013.10.31
Indoor real-time positioning for multiple targets is required to realize human-robot symbiosis. This study firstly presents positioning accuracy on an autonomous mobile robot controlled by 3-D coordinates that is obtained by a real-time indoor positioning system with spread spectrum (SS) ultrasonic signals communicated by code-division multiple access. Although many positioning systems have been investigated, the positioning system with the SS ultrasonic signals can measure identified multiple 3-D positions in every 70 ms with noise tolerance and error within 100 mm. This system is also robust to occlusion and environmental changes. However, thus far, the positioning errors in an autonomous mobile robot, controlled by these systems using the SS ultrasonic signals, have not been evaluated as an experimental study. Therefore, a positioning experiment for trajectory control is conducted using an autonomous mobile robot and our positioning system. The effectiveness of this positioning method for robot self-localization is shown, from this experiment, because the average control error between the target position and the robot's position at 29 mm is obtained.
Real-time Indoor Positioning System;Spread Spectrum Ultrasonic Waves;Autonomous Mobile Robot;Self-localization;3-D Coordinates
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