A Smartphone 3D Positioning Method using a Spinning Magnet Marker
In recent years, the importance of location information has increased due to the popularization of terminals such as smartphones. Our purpose is to estimate the 3D position of smartphones within several centimeters. This location information can reveal a person's behavior patterns and subject o...
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Veröffentlicht in: | Journal of Information Processing 2019, Vol.27, pp.10-24 |
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creator | Watanabe, Kosuke Hiroi, Kei Kamiyama, Takeshi Sano, Hiroyuki Tsukamoto, Masakatsu Katagiri, Masaji Ikeda, Daizo Kaji, Katsuhiko Kawaguchi, Nobuo |
description | In recent years, the importance of location information has increased due to the popularization of terminals such as smartphones. Our purpose is to estimate the 3D position of smartphones within several centimeters. This location information can reveal a person's behavior patterns and subject of interest. A method based on dynamic magnetism can estimate the 3D position of a terminal within several centimeters, and it is robust against the environment. However, since the performance of the smartphone's magnetic sensor is limited, this method cannot be used in smartphones. In this research, we propose a smartphone 3D positioning method using a Spinning Magnet Marker (SMM) that spins a powerful neodymium magnet with a motor. Magnetoquasistatic field generated by an SMM is detected by a magnetic sensor mounted on a smartphone, and the 3D position of a smartphone based on the SMM is estimated from the magnetism. We developed an SMM with a stepper motor to improve estimation accuracy. In addition, we studied the magnetism generated by an SMM and derive equations to estimate the 3D position of a smartphone. Furthermore, we improved the estimation accuracy and expanded coverage by introducing a noise reduction method. We evaluate the estimation accuracy of the proposed method. When the azimuth angle is 0°, the elevation angle is 0°, and the distance is 3m, the azimuth angle is estimated with a mean error of 1°, the elevation angle is estimated with a mean error of 4°, and the distance is estimated with a mean error of 9cm. |
doi_str_mv | 10.2197/ipsjjip.27.10 |
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Our purpose is to estimate the 3D position of smartphones within several centimeters. This location information can reveal a person's behavior patterns and subject of interest. A method based on dynamic magnetism can estimate the 3D position of a terminal within several centimeters, and it is robust against the environment. However, since the performance of the smartphone's magnetic sensor is limited, this method cannot be used in smartphones. In this research, we propose a smartphone 3D positioning method using a Spinning Magnet Marker (SMM) that spins a powerful neodymium magnet with a motor. Magnetoquasistatic field generated by an SMM is detected by a magnetic sensor mounted on a smartphone, and the 3D position of a smartphone based on the SMM is estimated from the magnetism. We developed an SMM with a stepper motor to improve estimation accuracy. In addition, we studied the magnetism generated by an SMM and derive equations to estimate the 3D position of a smartphone. Furthermore, we improved the estimation accuracy and expanded coverage by introducing a noise reduction method. We evaluate the estimation accuracy of the proposed method. When the azimuth angle is 0°, the elevation angle is 0°, and the distance is 3m, the azimuth angle is estimated with a mean error of 1°, the elevation angle is estimated with a mean error of 4°, and the distance is estimated with a mean error of 9cm.</description><identifier>ISSN: 1882-6652</identifier><identifier>EISSN: 1882-6652</identifier><identifier>DOI: 10.2197/ipsjjip.27.10</identifier><language>eng</language><publisher>Tokyo: Information Processing Society of Japan</publisher><subject>Accuracy ; Azimuth ; Elevation angle ; Errors ; indoor positioning ; Magnetism ; magnetoquasistatic field ; Neodymium ; Noise reduction ; Permanent magnets ; Position sensing ; smartphone ; Smartphones ; three-dimension</subject><ispartof>Journal of Information Processing, 2019, Vol.27, pp.10-24</ispartof><rights>2019 by the Information Processing Society of Japan</rights><rights>Copyright Japan Science and Technology Agency 2019</rights><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c3990-f3be912309a2222741985cdee56e54a0b86568d95fa7e2cad8a966dce31b90a43</citedby><cites>FETCH-LOGICAL-c3990-f3be912309a2222741985cdee56e54a0b86568d95fa7e2cad8a966dce31b90a43</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,1883,4024,27923,27924,27925</link.rule.ids></links><search><creatorcontrib>Watanabe, Kosuke</creatorcontrib><creatorcontrib>Hiroi, Kei</creatorcontrib><creatorcontrib>Kamiyama, Takeshi</creatorcontrib><creatorcontrib>Sano, Hiroyuki</creatorcontrib><creatorcontrib>Tsukamoto, Masakatsu</creatorcontrib><creatorcontrib>Katagiri, Masaji</creatorcontrib><creatorcontrib>Ikeda, Daizo</creatorcontrib><creatorcontrib>Kaji, Katsuhiko</creatorcontrib><creatorcontrib>Kawaguchi, Nobuo</creatorcontrib><title>A Smartphone 3D Positioning Method using a Spinning Magnet Marker</title><title>Journal of Information Processing</title><addtitle>Journal of Information Processing</addtitle><description>In recent years, the importance of location information has increased due to the popularization of terminals such as smartphones. Our purpose is to estimate the 3D position of smartphones within several centimeters. This location information can reveal a person's behavior patterns and subject of interest. A method based on dynamic magnetism can estimate the 3D position of a terminal within several centimeters, and it is robust against the environment. However, since the performance of the smartphone's magnetic sensor is limited, this method cannot be used in smartphones. In this research, we propose a smartphone 3D positioning method using a Spinning Magnet Marker (SMM) that spins a powerful neodymium magnet with a motor. Magnetoquasistatic field generated by an SMM is detected by a magnetic sensor mounted on a smartphone, and the 3D position of a smartphone based on the SMM is estimated from the magnetism. We developed an SMM with a stepper motor to improve estimation accuracy. In addition, we studied the magnetism generated by an SMM and derive equations to estimate the 3D position of a smartphone. Furthermore, we improved the estimation accuracy and expanded coverage by introducing a noise reduction method. We evaluate the estimation accuracy of the proposed method. When the azimuth angle is 0°, the elevation angle is 0°, and the distance is 3m, the azimuth angle is estimated with a mean error of 1°, the elevation angle is estimated with a mean error of 4°, and the distance is estimated with a mean error of 9cm.</description><subject>Accuracy</subject><subject>Azimuth</subject><subject>Elevation angle</subject><subject>Errors</subject><subject>indoor positioning</subject><subject>Magnetism</subject><subject>magnetoquasistatic field</subject><subject>Neodymium</subject><subject>Noise reduction</subject><subject>Permanent magnets</subject><subject>Position sensing</subject><subject>smartphone</subject><subject>Smartphones</subject><subject>three-dimension</subject><issn>1882-6652</issn><issn>1882-6652</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><recordid>eNpNkE1PwzAMhiMEEmNw5F6Jc0c-mrS5MQ0GSEMgDc5RlrpbykhK0h3492TqNM0Xfz225RehW4InlMjy3naxbW03oeWE4DM0IlVFcyE4PT-JL9FVjC3GQmKOR2g6zZY_OvTdxjvI2GP24aPtrXfWrbM36De-znZxn-hs2Vk31PXaQZ9c-IZwjS4avY1wc_Bj9DV_-py95Iv359fZdJEbJiXOG7YCSSjDUtNkZUFkxU0NwAXwQuNVJbioaskbXQI1uq60FKI2wMhKYl2wMbob9nbB_-4g9qr1u-DSSZX2iYIXRYkTlQ-UCT7GAI3qgk0P_imC1V4ldVBJ0TKVEv8w8G3s9RqOdJLEmi2c0ngYObbMRgcFjv0Ds8xytQ</recordid><startdate>2019</startdate><enddate>2019</enddate><creator>Watanabe, Kosuke</creator><creator>Hiroi, Kei</creator><creator>Kamiyama, Takeshi</creator><creator>Sano, Hiroyuki</creator><creator>Tsukamoto, Masakatsu</creator><creator>Katagiri, Masaji</creator><creator>Ikeda, Daizo</creator><creator>Kaji, Katsuhiko</creator><creator>Kawaguchi, Nobuo</creator><general>Information Processing Society of Japan</general><general>Japan Science and Technology Agency</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SC</scope><scope>8FD</scope><scope>JQ2</scope><scope>L7M</scope><scope>L~C</scope><scope>L~D</scope></search><sort><creationdate>2019</creationdate><title>A Smartphone 3D Positioning Method using a Spinning Magnet Marker</title><author>Watanabe, Kosuke ; Hiroi, Kei ; Kamiyama, Takeshi ; Sano, Hiroyuki ; Tsukamoto, Masakatsu ; Katagiri, Masaji ; Ikeda, Daizo ; Kaji, Katsuhiko ; Kawaguchi, Nobuo</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3990-f3be912309a2222741985cdee56e54a0b86568d95fa7e2cad8a966dce31b90a43</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Accuracy</topic><topic>Azimuth</topic><topic>Elevation angle</topic><topic>Errors</topic><topic>indoor positioning</topic><topic>Magnetism</topic><topic>magnetoquasistatic field</topic><topic>Neodymium</topic><topic>Noise reduction</topic><topic>Permanent magnets</topic><topic>Position sensing</topic><topic>smartphone</topic><topic>Smartphones</topic><topic>three-dimension</topic><toplevel>online_resources</toplevel><creatorcontrib>Watanabe, Kosuke</creatorcontrib><creatorcontrib>Hiroi, Kei</creatorcontrib><creatorcontrib>Kamiyama, Takeshi</creatorcontrib><creatorcontrib>Sano, Hiroyuki</creatorcontrib><creatorcontrib>Tsukamoto, Masakatsu</creatorcontrib><creatorcontrib>Katagiri, Masaji</creatorcontrib><creatorcontrib>Ikeda, Daizo</creatorcontrib><creatorcontrib>Kaji, Katsuhiko</creatorcontrib><creatorcontrib>Kawaguchi, Nobuo</creatorcontrib><collection>CrossRef</collection><collection>Computer and Information Systems Abstracts</collection><collection>Technology Research Database</collection><collection>ProQuest Computer Science Collection</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Computer and Information Systems Abstracts Academic</collection><collection>Computer and Information Systems Abstracts Professional</collection><jtitle>Journal of Information Processing</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Watanabe, Kosuke</au><au>Hiroi, Kei</au><au>Kamiyama, Takeshi</au><au>Sano, Hiroyuki</au><au>Tsukamoto, Masakatsu</au><au>Katagiri, Masaji</au><au>Ikeda, Daizo</au><au>Kaji, Katsuhiko</au><au>Kawaguchi, Nobuo</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A Smartphone 3D Positioning Method using a Spinning Magnet Marker</atitle><jtitle>Journal of Information Processing</jtitle><addtitle>Journal of Information Processing</addtitle><date>2019</date><risdate>2019</risdate><volume>27</volume><spage>10</spage><epage>24</epage><pages>10-24</pages><issn>1882-6652</issn><eissn>1882-6652</eissn><abstract>In recent years, the importance of location information has increased due to the popularization of terminals such as smartphones. Our purpose is to estimate the 3D position of smartphones within several centimeters. This location information can reveal a person's behavior patterns and subject of interest. A method based on dynamic magnetism can estimate the 3D position of a terminal within several centimeters, and it is robust against the environment. However, since the performance of the smartphone's magnetic sensor is limited, this method cannot be used in smartphones. In this research, we propose a smartphone 3D positioning method using a Spinning Magnet Marker (SMM) that spins a powerful neodymium magnet with a motor. Magnetoquasistatic field generated by an SMM is detected by a magnetic sensor mounted on a smartphone, and the 3D position of a smartphone based on the SMM is estimated from the magnetism. We developed an SMM with a stepper motor to improve estimation accuracy. In addition, we studied the magnetism generated by an SMM and derive equations to estimate the 3D position of a smartphone. Furthermore, we improved the estimation accuracy and expanded coverage by introducing a noise reduction method. We evaluate the estimation accuracy of the proposed method. When the azimuth angle is 0°, the elevation angle is 0°, and the distance is 3m, the azimuth angle is estimated with a mean error of 1°, the elevation angle is estimated with a mean error of 4°, and the distance is estimated with a mean error of 9cm.</abstract><cop>Tokyo</cop><pub>Information Processing Society of Japan</pub><doi>10.2197/ipsjjip.27.10</doi><tpages>15</tpages><oa>free_for_read</oa></addata></record> |
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subjects | Accuracy Azimuth Elevation angle Errors indoor positioning Magnetism magnetoquasistatic field Neodymium Noise reduction Permanent magnets Position sensing smartphone Smartphones three-dimension |
title | A Smartphone 3D Positioning Method using a Spinning Magnet Marker |
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