EcoIMU: A compact, wireless, gyro-free inertial measurement unit based on two triaxial accelerometers

Author

Tsai, Yi-Lung ; Tu, Ting-Ting ; Chou, Pai H.

Author_Institution

Dept. of Comput. Sci., Nat. Tsing Hua Univ., Hsinchu, Taiwan

fYear

2011

fDate

12-14 April 2011

Firstpage

133

Lastpage

134

Abstract

EcoIMU is a gyro-free, wearable inertial measurement unit (IMU) built with a pair of triaxial accelerometers that are spatially separated and wirelessly connected. It can output the translation and rotation of the body for the purpose of motion tracking and dead reckoning applications. It mitigates error accumulation and drift problems using domain knowledge including pause identification and geometric constraints on the two nodes. This demo shows the EcoIMU system in action by tracking all six degrees of freedom, namely triaxial translation and rotation and showing the results in a 3D animated cube.

Keywords

accelerometers; inertial navigation; wireless sensor networks; EcoIMU; dead reckoning; domain knowledge; drift problems; error accumulation; geometric constraints; gyro-free inertial measurement unit; motion tracking; pause identification; triaxial accelerometers; Acceleration; Accelerometers; Measurement units; Sensors; Three dimensional displays; Tracking; Wireless sensor networks; accelerometer; gyro-free inertial measurement; wireless sensor;

fLanguage

English

Publisher

ieee

Conference_Titel

Information Processing in Sensor Networks (IPSN), 2011 10th International Conference on

Conference_Location

Chicago, IL

Print_ISBN

978-1-61284-854-9

Electronic_ISBN

978-1-4503-0512-9

Type

conf

Filename

5779081