DocumentCode :
3282916
Title :
Wearable wireless accelerometer with embedded fall-detection logic for multi-sensor ambient assisted living applications
Author :
Lombardi, Andrea ; Ferri, Massimo ; Rescio, Gabriele ; Grassi, Marco ; Malcovati, Piero
Author_Institution :
Dept. of Electr. Eng., Univ. of Pavia, Pavia, Italy
fYear :
2009
fDate :
25-28 Oct. 2009
Firstpage :
1967
Lastpage :
1970
Abstract :
In this paper we present a wearable wireless accelerometer device for people fall detection in ambient assisted living (AAL) applications, communicating with care holders and relatives of the assisted person through an ADSL based gateway. The wearable system is a PCB with a commercial three-axes, digital-output MEMS accelerometer chip, a ZigBee transceiver and a programmable logic (FPGA). The raw acceleration stream from the MEMS sensor is processed by suitable algorithms on the FPGA, whose aim is to detect potential falls and their level of confidence, delivering an alarm information to the gateway by means of the ZigBee transceiver. Several sessions of data collection with real actors have been performed to define and characterize fall detection algorithms. Experimental results show that the accelerometer is a fundamental component of a multi-sensor network system and on this basis a custom device has been realized.
Keywords :
accelerometers; biomedical communication; biomedical electronics; digital subscriber lines; field programmable gate arrays; microsensors; printed circuits; sensor fusion; transceivers; wireless sensor networks; ADSL based gateway; FPGA; MEMS sensor; PCB; ZigBee transceiver; data collection; digital-output MEMS accelerometer chip; embedded fall-detection logic; fall detection; multisensor ambient assisted living applications; programmable logic; wearable wireless accelerometer; Acceleration; Accelerometers; Field programmable gate arrays; Logic devices; Micromechanical devices; Programmable logic arrays; Programmable logic devices; Sensor phenomena and characterization; Transceivers; ZigBee;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Sensors, 2009 IEEE
Conference_Location :
Christchurch
ISSN :
1930-0395
Print_ISBN :
978-1-4244-4548-6
Electronic_ISBN :
1930-0395
Type :
conf
DOI :
10.1109/ICSENS.2009.5398327
Filename :
5398327
Link To Document :
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