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With the growth of smart building applications, occupancy information in residential buildings is becoming more and more significant. In the context of the smart buildings' paradigm, this kind of information is required for a wide range of…

Signal Processing · Electrical Eng. & Systems 2022-09-26 Sangkeum Lee , Sarvar Hussain Nengroo , Hojun Jin , Yoonmee Doh , Chungho Lee , Taewook Heo , Dongsoo Har

Occupancy plays an essential role in influencing the energy consumption and operation of heating, ventilation, and air conditioning (HVAC) systems. Traditional HVAC typically operate on fixed schedules without considering occupancy.…

Computer Vision and Pattern Recognition · Computer Science 2025-05-14 Xue Cui , Vincent Gbouna Zakka , Minhyun Lee

Developing personalised thermal comfort models to inform occupant-centric controls (OCC) in buildings requires collecting large amounts of real-time occupant preference data. This process can be highly intrusive and labour-intensive for…

Machine Learning · Computer Science 2023-09-19 Zeynep Duygu Tekler , Yue Lei , Xilei Dai , Adrian Chong

Dynamic models of occupancy patterns have shown to be effective in optimizing building-systems operations. Previous research has relied on CO$_2$ sensors and vision-based techniques to determine occupancy patterns. Vision-based techniques…

Machine Learning · Computer Science 2022-03-10 Mahsa Pahlavikhah Varnosfaderani , Arsalan Heydarian , Farrokh Jazizadeh

Energy efficiency of buildings is considered to be one of the major means of achieving the net-zero carbon goal around the world. The big part of the energy savings are supposed to be coming from optimizing the operation of the building…

Systems and Control · Electrical Eng. & Systems 2024-09-19 Amir-Mohammad Esmaieeli-Sikaroudi , Boris Goikhman , Dmitri Chubarov , Hung Dinh Nguyen , Michael Chertkov , Petr Vorobev

In the past few years, several case studies have illustrated that the use of occupancy information in buildings leads to energy-efficient and low-cost HVAC operation. The widely presented techniques for occupancy estimation include…

Sound · Computer Science 2016-03-01 Qian Huang , Zhenhao Ge , Chao Lu

Energy consumed in buildings takes significant portions of the total global energy usage. A large amount of building energy is used for heating, cooling, ventilation, and air-conditioning (HVAC). However, compared to its importance,…

Systems and Control · Electrical Eng. & Systems 2020-12-22 Juye Kim

This paper investigates non-intrusive occupancy detection methods for residential buildings using environmental sensor data from the KTH Live-In Lab in Stockholm, Sweden. Three machine learning approaches, namely, logistic regression (LR),…

Systems and Control · Electrical Eng. & Systems 2026-05-05 Mahsa Farjadnia , Katayoun Eshkofti , Albin Apell , Tilde Hjalmarsson , Karl Henrik Johansson , Angela Fontan , Marco Molinari

Accurate occupancy information helps to improve building energy efficiency and occupant comfort. Occupancy detection methods based on CO2 sensors have received attention due to their low cost and low intrusiveness. In naturally ventilated…

Machine Learning · Computer Science 2024-07-02 Qirui Huang , Marc Syndicus , Jérôme Frisch , Christoph van Treeck

Indoor navigation remains a complex challenge due to the absence of reliable GPS signals and the architectural intricacies of large enclosed environments. This study presents an indoor localization and navigation approach that integrates…

Machine Learning · Computer Science 2025-08-12 Keyan Rahimi , Md. Wasiul Haque , Sagar Dasgupta , Mizanur Rahman

Robotic perception requires the modeling of both 3D geometry and semantics. Existing methods typically focus on estimating 3D bounding boxes, neglecting finer geometric details and struggling to handle general, out-of-vocabulary objects. 3D…

Computer Vision and Pattern Recognition · Computer Science 2023-12-14 Xiaoyu Tian , Tao Jiang , Longfei Yun , Yucheng Mao , Huitong Yang , Yue Wang , Yilun Wang , Hang Zhao

Visible Light Communication~(VLC) systems provide not only illumination and data communication, but also indoor monitoring services if the effect that different events create on the received optical signal is properly tracked. For this…

Signal Processing · Electrical Eng. & Systems 2021-01-27 Mehmet C. Ilter , Alexis A. Dowhuszko , Jyri Hämäläinen , Risto Wichman

This paper presents an indoor occupancy estimator with which we can estimate the number of real-time indoor occupants based on the carbon dioxide (CO2) measurement. The estimator is actually a dynamic model of the occupancy level. To…

Systems and Control · Computer Science 2016-07-21 Chaoyang Jiang , Mustafa K. Masood , Yeng Chai Soh , Hua Li

Buildings sector is one of the major consumers of energy in the United States. The buildings HVAC (Heating, Ventilation, and Air Conditioning) systems, whose functionality is to maintain thermal comfort and indoor air quality (IAQ), account…

Systems and Control · Electrical Eng. & Systems 2021-03-24 Chi Zhang , Sanmukh R. Kuppannagari , Rajgopal Kannan , Viktor K. Prasanna

Vision-centric semantic occupancy prediction plays a crucial role in autonomous driving, which requires accurate and reliable predictions from low-cost sensors. Although having notably narrowed the accuracy gap with LiDAR, there is still…

Computer Vision and Pattern Recognition · Computer Science 2024-09-27 Song Wang , Zhongdao Wang , Jiawei Yu , Wentong Li , Bailan Feng , Junbo Chen , Jianke Zhu

Intelligent building automation systems can reduce the energy consumption of heating, ventilation and air-conditioning (HVAC) units by sensing the comfort requirements automatically and scheduling the HVAC operations dynamically.…

Systems and Control · Computer Science 2017-09-25 Muhammad Aftab , Chien Chen , Chi-Kin Chau , Talal Rahwan

Ensuring optimal Indoor Environmental Quality (IEQ) is vital for occupant health and productivity, yet it often comes at a high energy cost in conventional Heating, Ventilation, and Air Conditioning (HVAC) systems. This paper proposes a…

Machine Learning · Computer Science 2025-10-01 Youssef Sabiri , Walid Houmaidi , Aaya Bougrine , Salmane El Mansour Billah

This paper presents an occupancy-predicting control algorithm for heating, ventilation, and air conditioning (HVAC) systems in buildings. It incorporates the building's thermal properties, local weather predictions, and a self-tuning…

Systems and Control · Computer Science 2014-07-29 Justin R. Dobbs , Brandon M. Hencey

Heating, Ventilation and Air Conditioning (HVAC) consumes a significant fraction of energy in commercial buildings. Hence, the use of optimization techniques to reduce HVAC energy consumption has been widely studied. Model predictive…

Systems and Control · Computer Science 2018-10-26 Milan Jain , Rachel K Kalaimani , Srinivasan Keshav , Catherine Rosenberg

Understanding how people perceive and evaluate interior spaces is essential for designing environments that promote well-being. However, predicting aesthetic experiences remains difficult due to the subjective nature of perception and the…

Computer Vision and Pattern Recognition · Computer Science 2026-01-26 Chen-Ying Chien , Po-Chih Kuo
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