Distributed ESP-Now CSI Human Activity Recognition for Few-Shot Energy Saving in Building Automation
Adolfo Bauchspiess, Tanmay Mane, Iris Walter, Jürgen Becker · 2024
Device-free sensing with wifi signals has gained great attention from the community to enhance building automation systems. In such systems, energy efficiency can be improved through predictive forecasting of occupancy as well as human activities carried out in the room. In this context, we propose a wifi-network of eight ESP32 modules, where we measure Channel State Information (CSI) and couple the sensor data with few-shot bundled majority vote models to perform Human Activity Recognition (HAR). We achieve an accuracy of 74% for HAR. Those are promising results for HAR as a basis for low-power building automation solutions using COTS in single antenna sensor setup.