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| Main Authors: | , , , , , , |
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| Format: | Preprint |
| Published: |
2024
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2412.09980 |
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| _version_ | 1866910856625782784 |
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| author | Wang, Lingyun Su, Deqi Zhang, Aohua Zhu, Yujun Jiang, Weiwei He, Xin Yang, Panlong |
| author_facet | Wang, Lingyun Su, Deqi Zhang, Aohua Zhu, Yujun Jiang, Weiwei He, Xin Yang, Panlong |
| contents | In recent years, as the population ages, falls have increasingly posed a significant threat to the health of the elderly. We propose a real-time fall detection system that integrates the inertial measurement unit (IMU) of a smartphone with optimized Wi-Fi channel state information (CSI) for secondary validation. Initially, the IMU distinguishes falls from routine daily activities with minimal computational demand. Subsequently, the CSI is employed for further assessment, which includes evaluating the individual's post-fall mobility. This methodology not only achieves high accuracy but also reduces energy consumption in the smartphone platform. An Android application developed specifically for the purpose issues an emergency alert if the user experiences a fall and is unable to move. Experimental results indicate that the CSI model, based on convolutional neural networks (CNN), achieves a detection accuracy of 99%, \revised{surpassing comparable IMU-only models, and demonstrating significant resilience in distinguishing between falls and non-fall activities. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2412_09980 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Real-Time Fall Detection Using Smartphone Accelerometers and WiFi Channel State Information Wang, Lingyun Su, Deqi Zhang, Aohua Zhu, Yujun Jiang, Weiwei He, Xin Yang, Panlong Machine Learning In recent years, as the population ages, falls have increasingly posed a significant threat to the health of the elderly. We propose a real-time fall detection system that integrates the inertial measurement unit (IMU) of a smartphone with optimized Wi-Fi channel state information (CSI) for secondary validation. Initially, the IMU distinguishes falls from routine daily activities with minimal computational demand. Subsequently, the CSI is employed for further assessment, which includes evaluating the individual's post-fall mobility. This methodology not only achieves high accuracy but also reduces energy consumption in the smartphone platform. An Android application developed specifically for the purpose issues an emergency alert if the user experiences a fall and is unable to move. Experimental results indicate that the CSI model, based on convolutional neural networks (CNN), achieves a detection accuracy of 99%, \revised{surpassing comparable IMU-only models, and demonstrating significant resilience in distinguishing between falls and non-fall activities. |
| title | Real-Time Fall Detection Using Smartphone Accelerometers and WiFi Channel State Information |
| topic | Machine Learning |
| url | https://arxiv.org/abs/2412.09980 |