An IoT-Based Framework for Remote Fall Monitoring

TL;DR

This paper introduces an IoT-based fall detection system utilizing accelerometer data and advanced features like CWT, achieving over 95% accuracy in real-time classification, which is crucial for elderly healthcare.

Contribution

The paper presents a novel IoT framework combined with a feature extraction approach emphasizing CWT for high-accuracy fall detection.

Findings

CWT is a significant feature for fall detection.

Achieved over 95% accuracy on small datasets.

Real-time classification with high efficiency.

Abstract

Fall detection is a serious healthcare issue that needs to be solved. Falling without quick medical intervention would lower the chances of survival for the elderly, especially if living alone. Hence, the need is there for developing fall detection algorithms with high accuracy. This paper presents a novel IoT-based system for fall detection that includes a sensing device transmitting data to a mobile application through a cloud-connected gateway device. Then, the focus is shifted to the algorithmic aspect where multiple features are extracted from 3-axis accelerometer data taken from existing datasets. The results emphasize on the significance of Continuous Wavelet Transform (CWT) as an influential feature for determining falls. CWT, Signal Energy (SE), Signal Magnitude Area (SMA), and Signal Vector Magnitude (SVM) features have shown promising classification results using K-Nearest Neighbors (KNN) and E-Nearest Neighbors (ENN). For all performance metrics (accuracy, recall, precision, specificity, and F1 Score), the achieved results are higher than 95% for a dataset of small size, while more than 98.47% score is achieved in the aforementioned criteria over the UniMiB-SHAR dataset by the same algorithms, where the classification time for a single test record is extremely efficient and is real-time