Name
Abstract | ||
|---|---|---|
We propose a method of detecting the precise three-dimensional position of a smartphone using a Spinning Magnet Marker (SMM). An SMM is a device that generates a dynamic magnetic field by spinning a strong magnet with a motor. In the proposed method, the magnetic sensor of a smartphone detects the magnetic field generated by an SMM, and the three-imensional position of the smartphone is estimated with an accuracy of better than several tens of centimeters based on the magnetic field and the motor angle of the SMM. It is expected that such precise three-dimensional positioning will enable not only better navigation of users to their destinations but also a better understanding of human behavior. First, we construct theoretical equations relating the magnetic field generated by the SMM to the three-dimensional position of the smartphone in three-dimensional polar coordinates. Second, we evaluate the estimation accuracy of the proposed method with the distance between the SMM and the smartphone fixed at 1.0 m. The azimuth is estimated with a mean error of within 11 degrees, and the elevation is estimated with a mean error of within 10 degrees. The distance is estimated with a mean error of within 19 cm at distances of up to 3.0 m. |
Year | DOI | Venue |
|---|---|---|
2017 | 10.23919/ICMU.2017.8330076 | 2017 Tenth International Conference on Mobile Computing and Ubiquitous Network (ICMU) |
Keywords | Field | DocType |
spinning magnet marker,magnetic sensor,position estimation,navigation,distance estimation,three-dimensional smartphone positioning method,three-dimensional polar coordinates,SMM,distance 1.0 m,distance 19.0 cm | Mobile computing,Magnetic field,Spinning,Magnet,Mean squared error,Azimuth,Polar coordinate system,Elevation,Acoustics,Physics | Conference |
ISBN | Citations | PageRank |
978-1-5386-0594-3 | 0 | 0.34 |
References | Authors | |
6 | 9 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Kosuke Watanabe | 1 | 0 | 0.34 |
| Kei Hiroi | 2 | 19 | 12.00 |
| Takeshi Kamiyama | 3 | 0 | 0.34 |
| Hiroyuki Sano | 4 | 7 | 3.12 |
| Masakatsu Tsukamoto | 5 | 0 | 0.34 |
| Masaji Katagiri | 6 | 0 | 1.01 |
| Daizo Ikeda | 7 | 8 | 8.59 |
| Katsuhiko Kaji | 8 | 130 | 27.22 |
| Nobuo Kawaguchi | 9 | 313 | 64.23 |