Low power embedded system for pre-fall detection application

Rathi, Neeraj; Thella, Ashok Kumar; Kakani, Monika; Rizkalla, Maher

doi:10.1109/mwscas.2017.8053163

Cited by 1 publication

(1 citation statement)

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“…By comparing a set of ten input features derived from different statistics extracted from the accelerometer and gyroscope signals, the study concludes that a remarkable power saving (of up to 75%) can be achieved if the features are carefully selected. Rathi et al described, in [17], one of the few designs of a wearable FDS that is thoroughly conceived to optimize energy consumption. The proposed prototype, which incorporates three sensors (on chest, waist and sacral region) with embedded accelerometers and gyroscopes, is aimed at discriminating the pre-fall phase from the movements of the user.…”

Section: Consumption In Wearable Fdss Based On a Specific Device (Notmentioning

confidence: 99%

Consumption Analysis of Smartphone based Fall Detection Systems with Multiple External Wireless Sensors

González-Cañete

Casilari

2020

Sensors

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Fall Detection Systems (FDSs) based on wearable technologies have gained much research attention in recent years. Due to the networking and computing capabilities of smartphones, these widespread personal devices have been proposed to deploy cost-effective wearable systems intended for automatic fall detection. In spite of the fact that smartphones are natively provided with inertial sensors (accelerometers and gyroscopes), the effectiveness of a smartphone-based FDS can be improved if it also exploits the measurements collected by small low-power wireless sensors, which can be firmly attached to the user’s body without causing discomfort. For these architectures with multiple sensing points, the smartphone transported by the user can act as the core of the FDS architecture by processing and analyzing the data measured by the external sensors and transmitting the corresponding alarm whenever a fall is detected. In this context, the wireless communications with the sensors and with the remote monitoring point may impact on the general performance of the smartphone and, in particular, on the battery lifetime. In contrast with most works in the literature (which disregard the real feasibility of implementing an FDS on a smartphone), this paper explores the actual potential of current commercial smartphones to put into operation an FDS that incorporates several external sensors. This study analyzes diverse operational aspects that may influence the consumption (as the use of a GPS sensor, the coexistence with other apps, the retransmission of the measurements to an external server, etc.) and identifies practical scenarios in which the deployment of a smartphone-based FDS is viable.

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Section: Consumption In Wearable Fdss Based On a Specific Device (Notmentioning

confidence: 99%