| Presentation | 2014-11-19 3D-LF: Floor Level Estimation Based on Barometric Pressure in Conjunction with Location Fingerprint Haruki Izumikawa, Yuki Hirota, Daisuke Kamisaka, Chihiro Ono, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We have been involved in research and development to estimate the indoor floor level of a mobile terminal equipped with a barometric pressure sensor for the sake of efficient cellular coverage management based on gleaned coverage information from mobile terminals. In order efficiently to optimize coverage or rectify an issue with coverage, in addition to the two-dimensional latitude and longitude, the three-dimensional perspective is needed, i.e., the floor level. Our previous method estimated the floor level of a mobile terminal using measured barometric pressure by the mobile terminal and base pressure as a reference, which was barometric pressure at ground height close to the mobile terminal. The base pressure estimate is based on a large number of barometric pressures from many mobile terminals. However, through the measurement, it was found that the barometric pressures from other terminals were hard to use to estimate the base pressure since barometric pressure sensors have considerable individual variability. Therefore, for a mobile terminal, only barometric pressures of the mobile terminal itself can be used, which would result in severe degradation in the chance to estimate the floor level because of the great decrease in references. Thus, we started to consider an advanced feature in order to increase the chance to estimate the floor level by adopting the location fingerprint technique to the method. We found that the relatively accurate Wi-Fi RF fingerprint can be gathered through a feasibility study where we collected coverage information that included barometric pressure and Wi-Fi information for about three months from subjects who installed a logger application on a smartphone. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Floor / Barometric pressure sensor / Positioning / MDT (Minimization of Drive-Tests) / Location fingerprint |
| Paper # | MoNA2014-54 |
| Date of Issue |
| Conference Information | |
| Committee | MoNA |
|---|---|
| Conference Date | 2014/11/11(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
| Assistant | |
| Paper Information | |
| Registration To | Mobile Network and Applications(MoNA) |
|---|---|
| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | 3D-LF: Floor Level Estimation Based on Barometric Pressure in Conjunction with Location Fingerprint |
| Sub Title (in English) | |
| Keyword(1) | Floor |
| Keyword(2) | Barometric pressure sensor |
| Keyword(3) | Positioning |
| Keyword(4) | MDT (Minimization of Drive-Tests) |
| Keyword(5) | Location fingerprint |
| 1st Author's Name | Haruki Izumikawa |
| 1st Author's Affiliation | KDDI R&D Laboratories, Inc.() |
| 2nd Author's Name | Yuki Hirota |
| 2nd Author's Affiliation | KDDI R&D Laboratories, Inc. |
| 3rd Author's Name | Daisuke Kamisaka |
| 3rd Author's Affiliation | KDDI R&D Laboratories, Inc. |
| 4th Author's Name | Chihiro Ono |
| 4th Author's Affiliation | KDDI R&D Laboratories, Inc. |
| Date | 2014-11-19 |
| Paper # | MoNA2014-54 |
| Volume (vol) | vol.114 |
| Number (no) | 308 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |