G-constellations: G-sensor motion tracking systems

Tsi-Ui Ik*, Chao Min Su, Wen Tien Chai, Jiun-Long Huang, Tsun Chieh Chiang

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

5 Scopus citations


In most inertial motion tracking systems, motion directions are detected and measured by direction sensors such as magnetometers and gyroscopes. In this paper, we propose a motion tracking system, called g-sensor constellations, in which only g-sensors but no direction sensors are used. The g-sensor constellation is a loose coupling g-sensor system with rigid geometric topology. As few as three g-sensors are needed for motion tracking, including direction detection. The system is easy to be installed. No complicated calibrations are needed and the necessary information is the distances between sensors. The proposed framework can improve the accuracy of dead reckoning systems and help in the analyzing of traffic accidents and developing new human-computer interfaces. In our experiments, a g-sensor constellation composed of three g-sensors, which are located at the vertices of an equilateral triangle with edges of 0.3m and communicate with the processing unit via Bluetooth link.

Original languageEnglish
Title of host publication2010 IEEE 71st Vehicular Technology
StatePublished - 30 Jul 2010
Event2010 IEEE 71st Vehicular Technology Conference, VTC 2010-Spring - Taipei, Taiwan
Duration: 16 May 201019 May 2010

Publication series

NameIEEE Vehicular Technology Conference
ISSN (Print)1550-2252


Conference2010 IEEE 71st Vehicular Technology Conference, VTC 2010-Spring

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