Title :
Indoor location based on independent sensors and WIFI
Author :
Zhang, Shizhe ; Xiong, Yongping ; Ma, Jian ; Song, Zheng ; Wang, Wendong
Author_Institution :
State Key Lab. of Networking & Switching Technol., Beijing Univ. of Posts & Telecommun., Beijing, China
Abstract :
This paper raises a method for indoor location by using WIFI wireless signals auxiliary for independent sensors localization to realize a continuous and seamless indoor localization. Independent sensors localization uses dead reckoning method mainly including three factors: step number, heading and step length. However, when a person walks, step length is a random variable. It is difficult to get accurate step length just relying on independent sensors. So, this paper puts forward to use WIFI wireless signals auxiliary positioning for online adjusting person´s step length. Also, WIFI wireless can aid for people´s position correction and wireless communication. Then, this method raised in this paper can realize a continuous, seamless and accurate indoor localization.
Keywords :
indoor radio; wireless LAN; wireless sensor networks; WIFI wireless signal auxiliary positioning; continuous indoor localization; dead reckoning method; heading factor; independent sensor localization; online person step length adjustment; people position correction; random variable; seamless indoor localization; step length factor; step number factor; wireless communication; Acceleration; Calibration; IEEE 802.11 Standards; Legged locomotion; Sensors; Wireless communication; Wireless sensor networks; WIFI wireless signals auxiliary positioning; dynamic step length; independent sensors localization; texts indoor localization;
Conference_Titel :
Computer Science and Network Technology (ICCSNT), 2011 International Conference on
Conference_Location :
Harbin
Print_ISBN :
978-1-4577-1586-0
DOI :
10.1109/ICCSNT.2011.6182509
