EFFECT OF THE PLACEMENT OF THE INERTIAL SENSOR ON THE HUMAN MOTION DETECTION
There are numerous possibilities of assessments of the human activity, offered by the ActimedARM -a wearable inertial sensor we developed. This device features a triaxial magnetometer, a trixial accelerometer, a micro-processing unit, a Zigbee module and a µSD card. Its embedded algorithms make it able to compute postures, transfers of the subject and also to characterize the walking episodes. We recently succeeded in computing the relative displacements of the sensors, from double integration of the acceleration signals, in order to qualify specific physical activities such as rising from chairs or stools. The experiments highlighted the impact of the location of the sensor on the body on the correlation between objective motion and signals processed from acceleration measurements, showing a better correlation coefficient of 11.41% when the sensor is located on the navel.
Keywords:
actimetry monitoring, embedded systems, inertial sensors
Autoři:
Julien Collet 1; Martin Cerny 2; Ludovic Delporte 3; Norbert Noury 1
Působiště autorů:
Institute of Nanotechnology of Lyon (INL-UMR5 70), INSA Lyon, Villeurbanne, France
1; VSB Technical University Ostrava, Ostrava, Czech Republic
2; Neurologic Science Center of Lyon (CNRL), Lyon, France
3
Vyšlo v časopise:
Lékař a technika - Clinician and Technology No. 4, 2014, 44, 21-24
Kategorie:
Původní práce
Souhrn
There are numerous possibilities of assessments of the human activity, offered by the ActimedARM -a wearable inertial sensor we developed. This device features a triaxial magnetometer, a trixial accelerometer, a micro-processing unit, a Zigbee module and a µSD card. Its embedded algorithms make it able to compute postures, transfers of the subject and also to characterize the walking episodes. We recently succeeded in computing the relative displacements of the sensors, from double integration of the acceleration signals, in order to qualify specific physical activities such as rising from chairs or stools. The experiments highlighted the impact of the location of the sensor on the body on the correlation between objective motion and signals processed from acceleration measurements, showing a better correlation coefficient of 11.41% when the sensor is located on the navel.
Keywords:
actimetry monitoring, embedded systems, inertial sensors
Zdroje
[1] B. Aguilaniu, H. Roth, J. Gonzalez, M. Jondot, J. Maitre, F. Denis, T. Similowski. A simple semi-placed three minutes chair rise test (3CRT) for routine exercise tolerance testing in COPD. Int Journal of COPD, 2014 (under publication).
[2] G. A. L. Meijer, K. R. Westerterp, F. M. H. Verhoeven, H. B. M. Koper, F. Ten Hoor. Methods to assess physical activity with special reference to motion sensors and accelerometers, IEEE-TBME. 1991;38: 221-229.
[3] Bouten C et al. A triaxial accelerometer and portable data processing unit for the assessment of daily physical activity. IEEE-TBME. 1997; 44(3):136-47.
[4] N. Noury, B. Perriot, J. Collet, E. Grenier, M. Cerny B. Massot, E. McAdams. ActimedARM – Design of a Wearable System to Monitor Daily Actimetry, 35th Annual International Conference of the IEEE EMBS, Osaka, 3-7 July, 2013.
Štítky
BiomedicínaČlánok vyšiel v časopise
Lékař a technika
2014 Číslo 4
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- EFFECT OF THE PLACEMENT OF THE INERTIAL SENSOR ON THE HUMAN MOTION DETECTION