Detection of Room Occupancy in Smart Buildings
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F24%3APU151665" target="_blank" >RIV/00216305:26220/24:PU151665 - isvavai.cz</a>
Result on the web
<a href="https://www.radioeng.cz/fulltexts/2024/24_03_0432_0441.pdf" target="_blank" >https://www.radioeng.cz/fulltexts/2024/24_03_0432_0441.pdf</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.13164/re.2024.0432" target="_blank" >10.13164/re.2024.0432</a>
Alternative languages
Result language
angličtina
Original language name
Detection of Room Occupancy in Smart Buildings
Original language description
Recent advancements in occupancy and indoor environmental monitoring have encouraged the development of innovative solutions. This paper presents a~novel approach to room occupancy detection using Wi-Fi probe requests and machine learning techniques. We propose a~methodology that splits occupancy detection into two distinct subtasks: personnel presence detection, where the model predicts whether someone is present in the room, and occupancy level detection, which estimates the number of occupants on a~six-level scale (ranging from 1 person to up to 25 people) based on probe requests. To achieve this, we evaluated three types of neural networks: CNN (Convolutional Neural Network), LSTM (Long Short-Term Memory), and GRU (Gated Recurrent Unit). Our experimental results show that the GRU model exhibits superior performance in both tasks. For personnel presence detection, the GRU model achieves an~accuracy of 91.8%, outperforming the CNN and LSTM models with accuracies of 88.7% and 63.8%, respectively. This demonstrates the effectiveness of GRU in discerning room occupancy. Furthermore, for occupancy level detection, the GRU model achieves an~accuracy of~75.1%, surpassing the CNN and LSTM models with accuracies of 47.1% and 52.8%, respectively. This research contributes to the field of occupancy detection by providing a~cost-effective solution that utilizes existing Wi-Fi infrastructure and demonstrates the potential of machine learning techniques in accurately classifying room occupancy.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20201 - Electrical and electronic engineering
Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Radioengineering
ISSN
1805-9600
e-ISSN
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Volume of the periodical
33
Issue of the periodical within the volume
3
Country of publishing house
CZ - CZECH REPUBLIC
Number of pages
10
Pages from-to
432-441
UT code for WoS article
001292738300010
EID of the result in the Scopus database
2-s2.0-85200274352