Title :
Automatic 3D calibration for a multi-sensor system
Author :
Koppe, Enrico ; Augustin, Daniel ; Liers, Achim ; Schiller, Jochen
Author_Institution :
Div. 8.1 Sensors, Meas. & Testing Methods, Fed. Inst. for Mater. Res. & Testing, Berlin, Germany
Abstract :
A major current focus in multi-sensor systems for indoor localisation is how to calibrate the sensors. In this study, we introduce a new method for this task. By using the datafusion of the combined sensor data, we were able to eliminate the errors of an individual sensor. The challenging matter was the connection of the different sensors for a continuous calibration. The necessary data for the calibration were given due to the natural movement of a person. The examination of this values offers an automatic re-calibration without using a given calibration sequence. This finding is promising for improving the calculation of the exact position of a person, who is moving free in a room.
Keywords :
calibration; indoor environment; sensor fusion; automatic 3D calibration; automatic recalibration; data fusion; indoor localisation; multisensor system; person natural movement; sensor calibration; sensor data; Calibration; Ellipsoids; Least squares approximation; Magnetic sensors; Sensor systems; embedded systems; indoor localisation; inertial measurement unit; inertial navigation system; person tracking; sensor calibration and validation; wireless sensor network (WSN);
Conference_Titel :
Indoor Positioning and Indoor Navigation (IPIN), 2012 International Conference on
Conference_Location :
Sydney, NSW
Print_ISBN :
978-1-4673-1955-3
DOI :
10.1109/IPIN.2012.6418870
