Systems in practice · 2022
Sensing how buildings are used
Can building sensors reveal patterns of human presence without wearable trackers? A two-year deployment of 390 LoRaWAN sensor nodes tested indoor communication and explored how environmental measurements change with building use. Extra gateways improved transmission reliability. The human-presence analysis remains exploratory: the study did not yet validate these signals against a ground-truth occupancy dataset.

The paper contrasts sensors carried by people with sensors built into the surrounding environment. Figure 2.
Grübel et al. (2022), Figure 2, DOI 10.1016/j.pmcj.2022.101640. Extracted from PDF page 4. Source · CC BY 4.0. Cropped to the complete original figure and rasterized; caption supplied separately.
Open full-size figureJournal article
Dense Indoor Sensor Networks: Towards passively sensing human presence with LoRaWAN
Jascha Grübel, Tyler Thrash, Leonel Aguilar, Michal Gath-Morad, Didier Hélal, Robert W. Sumner, Christoph Hölscher, Victor R. Schinazi
Pervasive and Mobile Computing · 2022
Summary based on Published article with ETH repository cover sheet, PDF pages 2, 23, 25.
DOI: 10.1016/j.pmcj.2022.101640