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JRM Vol.30 No.4 pp. 532-539
doi: 10.20965/jrm.2018.p0532
(2018)

Paper:

Enhancement of Scan Matching Using an Environmental Magnetic Field

Sam Ann Rahok*, Hirohisa Oneda**, Taichi Nakayama*, Kazumichi Inoue*, Shigeji Osawa**, Akio Tanaka*, and Koichi Ozaki***

*National Institute of Technology, Oyama College
771 Nakakuki, Oyama, Tochigi 323-0806, Japan

**National Institute of Technology, Yuge College
1000 Yuge, Kamijima, Ehime 794-2593, Japan

***Utsunomiya University
712 Yoto, Utsunomiya, Tochigi 321-8585, Japan

Received:
March 6, 2018
Accepted:
May 30, 2018
Published:
August 20, 2018
Keywords:
localization, mobile robot, environmental magnetic field
Abstract
Enhancement of Scan Matching Using an Environmental Magnetic Field

Localization using Bz of magnetic field

Scan matching is one of the most reliable localization methods for mobile robots in known environments. However, an unexpected shift in posture remains its major issue. A method that uses an environmental magnetic field, a magnetic field that occurs in the environment, is presented to address this issue. The environmental magnetic field, which mostly refers to the geomagnetic field, is rarely changed by time. This unique property provides a means to enhance scan matching to provide a more robust localization method by using it to compensate the mobile robot’s pose. In this study, we describe how to compensate the mobile robot’s pose with the environmental magnetic field. Through experiments, we show that a mobile robot with the proposed method can recover, even if irregular changes in posture occur during the navigation.

Cite this article as:
S. Rahok, H. Oneda, T. Nakayama, K. Inoue, S. Osawa, A. Tanaka, and K. Ozaki, “Enhancement of Scan Matching Using an Environmental Magnetic Field,” J. Robot. Mechatron., Vol.30, No.4, pp. 532-539, 2018.
Data files:
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Last updated on Sep. 21, 2018