Scheduled System Maintenance:
On Monday, April 27th, IEEE Xplore will undergo scheduled maintenance from 1:00 PM - 3:00 PM ET (17:00 - 19:00 UTC). No interruption in service is anticipated.
By Topic

Atmospheric pressure-aware seamless 3-D localization and navigation for mobile Internet devices

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

The purchase and pricing options are temporarily unavailable. Please try again later.
6 Author(s)
He, Nengqiang ; Department of Electronic Engineering, Tsinghua University, Beijing 100084, China ; Huo, Jinhai ; Dong, Yuhan ; Li, Yipeng
more authors

This paper describes a seamless three-dimensional (3-D) localization and navigation system for smartphones. The smartphone includes an atmospheric pressure sensor to measure the user's altitude that is combined with the outdoor Global Positioning System (GPS) and indoor WiFi-APs localization systems in a seamless 3-D localization system. The smartphone software also provides seamless navigation services by updating map information for both indoor and outdoor locations through the mobile Internet. The indoor floor information calculated from the altitude information is used to project localization anchor nodes, e.g., WiFi-AP, on different floors onto the user's floor with an indoor 3-D localization algorithm using projection distances based on a Received Signal Strength (RSS) algorithm. Tests show that the 3-D method reduces systematic errors and achieves much higher accuracy than the traditional two-dimensional localization method.

Published in:

Tsinghua Science and Technology  (Volume:17 ,  Issue: 2 )