Wifi-based human activity recognition using raspberry pi.
Forbes, Glenn; Massie, Stewart; Craw, Susan
Doctor Stewart Massie firstname.lastname@example.org
Professor Susan Craw email@example.com
Ambient, non-intrusive approaches to smart home health monitoring, while limited in capability, are preferred by residents. More intrusive methods of sensing, such as video and wearables, can offer richer data but at the cost of lower resident uptake, in part due to privacy concerns. A radio frequency-based approach to sensing, Channel State Information (CSI),can make use of low cost off-the-shelf WiFi hardware. We have implemented an activity recognition system on the Raspberry Pi 4, one of the world’s most popular embedded boards. We have implemented an classiﬁcation system using the Pi to demonstrate its capability for activity recognition. This involves performing data collection, interpretation and windowing, before supplying the data to a classiﬁcation model. In this paper, the capabilities of the Raspberry Pi 4 at performing activity recognition on CSI data are investigated. We have developed and publicly released a data interaction framework, capable of interpreting, processing and visualising data from a range of CSI-capable hardware. Furthermore, CSI data captured for these experiments during various activity performances have also been made publically available. We then train a Deep Convolutional LSTM model to classify the activities. Our experiments, performed in a small apartment, achieve 92% average accuracy on 11 activity classes.
|Start Date||Nov 9, 2020|
|Publisher||Institute of Electrical and Electronics Engineers|
|Institution Citation||FORBES, G., MASSIE, S. and CRAW, S. 2020. Wifi-based human activity recognition using raspberry pi. To be presented at 32nd International conference tools with artificial intelligence (ICTAI 2020), 9-11 November 2020, [virtual conference].|
|Keywords||Activity recognition; Smart home; IoT; RF|
FORBES  Wifi-based
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