Paper Info
Title
Practical localization system for consumer devices using zigbee networks
Abstract
As the era of ubiquitous computing dawns, there is a growing need for a reliable, efficient positioning and tracking system. A localization system involves ongoing tracking of the location of assets and personnel. This paper presents a practical localization system for consumer devices on Zigbee networks. The proposed system is based on time-difference-of-arrival (TDOA). Localization based on TDOA involves estimating the location of the device by calculating the time-difference-of-arrival of the signal received from a device. In order to calculate the time difference of the signal, TDOA-based methods require precision time measurements of the signal, and reader time synchronization accurate to within a few nanoseconds. We also propose a precise time stamping unit, which enables the system to determine the arrival time of the radio signal, and a precision time synchronization protocol, which enables readers to have a reference clock. In addition, this paper includes an experimental performance evaluation of the localization system. The performance shows that the localization system has a DRMS of approximately two meters in a harsh environment.
Year
DOI
Venue
2010
10.1109/TCE.2010.5606298
IEEE Trans. Consumer Electronics
Keywords
Field
DocType
consumer device,practical localization system,precise time,precision time synchronization protocol,zigbee network,reader time synchronization,proposed system,time difference,arrival time,radio signal,precision time measurement,localization system,time difference of arrival,ubiquitous computing,localization,synchronization,tracking system,mathematical model,protocols,local system,tdoa
Synchronization,Metre,Computer science,Tracking system,Real-time computing,Localization system,Ubiquitous computing,Time difference,Multilateration,Positioning system
Journal
Volume
Issue
ISSN
56
3
0098-3063
Citations 
PageRank 
References 
7
0.62
11
Authors
3
Name
Order
Citations
PageRank
Hyuntae Cho18814.10
Hyunsung Jang2122.92
Yunju Baek315623.54