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Related papers: Occupancy Estimation Using Low-Cost Wi-Fi Sniffers

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Detecting the presence of persons and estimating their quantity in an indoor environment has grown in importance recently. For example, the information if a room is unoccupied can be used for automatically switching off the light, air…

Signal Processing · Electrical Eng. & Systems 2021-05-18 Florenc Demrozi , Cristian Turetta , Fabio Chiarani , Philipp H. Kindt , Graziano Pravadelli

We propose a non-intrusive, and privacy-preserving occupancy estimation system for smart environments. The proposed scheme uses thermal images to detect the number of people in a given area. The occupancy estimation model is designed using…

Computer Vision and Pattern Recognition · Computer Science 2021-10-18 Zishan Qin , Dipankar Chaki , Abdallah Lakhdari , Amani Abusafia , Athman Bouguettaya

Universities worldwide are experiencing a surge in enrollments, therefore campus estate managers are seeking continuous data on attendance patterns to optimize the usage of classroom space. As a result, there is an increasing trend to…

Signal Processing · Electrical Eng. & Systems 2023-01-18 Iresha Pasquel Mohottige , Hassan Habibi Gharakheili , Vijay Sivaraman , Tim Moors

Zone-level occupancy counting is a critical technology for smart buildings and can be used for several applications such as building energy management, surveillance, and public safety. Existing occupancy counting techniques typically…

Networking and Internet Architecture · Computer Science 2017-02-22 Bekir Sait Ciftler , Sener Dikmese , Ismail Guvenc , Kemal Akkaya , Abdullah Kadri

With the advent of Internet of Thing (IoT), and ubiquitous data collected every moment by either portable (smart phone) or fixed (sensor) devices, it is important to gain insights and meaningful information from the sensor data in…

Machine Learning · Computer Science 2021-01-12 Mohammadhossein Toutiaee

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

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

This article presents a new methodology for extracting intervals when a home is vacant from low-frequency electricity consumption data. The approach combines multiple algorithms, including change point detection, classification, period…

Machine Learning · Computer Science 2023-12-15 Thomas Brilland , Guillaume Matheron , Laetitia Leduc , Yukihide Nakada

The ability to estimate College Campus Occupancy for Classrooms and Labs in real time has become one of the major concerns for various Academicians, authorities and administrators,where still a manual attendance marking system is being…

Computers and Society · Computer Science 2016-11-11 Nkita Jain , Rachita Gupta

This paper presents an efficient approach for building occupancy modeling to reduce energy consumption. In this work, a novel approach to occupancy modeling based on the posture and comfort level of the occupant is developed, and…

Systems and Control · Electrical Eng. & Systems 2023-02-27 Shreya Das

This paper realizes the estimation of classroom occupancy by using the CO2 sensor and deep learning technique named Long-Short-Term Memory. As a case of connection with IoT and machine learning, I achieve the model to estimate the people…

Machine Learning · Computer Science 2022-12-06 Zheyu Zhang

Information about room-level occupancy is crucial to many building-related tasks, such as building automation or energy performance simulation. Current occupancy detection literature focuses on data-driven methods, but is mostly based on…

Machine Learning · Computer Science 2025-11-20 Manuel Weber , Christoph Doblander , Peter Mandl

Reliable detection of human occupancy in indoor environments is critical for various energy efficiency, security, and safety applications. We consider this challenge of occupancy detection using extremely low-quality, privacy-preserving…

Computer Vision and Pattern Recognition · Computer Science 2020-08-25 Homagni Saha , Sin Yong Tan , Ali Saffari , Mohamad Katanbaf , Joshua R. Smith , Soumik Sarkar

Mobile sensing has played a key role in providing digital solutions to aid with COVID-19 containment policies. These solutions include, among other efforts, enforcing social distancing and monitoring crowd movements in indoor spaces.…

Computers and Society · Computer Science 2022-02-23 Camellia Zakaria , Amee Trivedi , Emmanuel Cecchet , Michael Chee , Prashant Shenoy , Rajesh Balan

This paper addresses the problem of learning instantaneous occupancy levels of dynamic environments and predicting future occupancy levels. Due to the complexity of most real-world environments, such as urban streets or crowded areas, the…

Robotics · Computer Science 2019-12-05 Vitor Guizilini , Ransalu Senanayake , Fabio Ramos

Spectrum occupancy prediction is a critical enabler for real-time and proactive dynamic spectrum sharing (DSS), as it can provide short-term channel availability information to support more efficient spectrum access decisions in wireless…

Signal Processing · Electrical Eng. & Systems 2026-01-21 Jiayu Mao , Ruoyu Sun , Mark Poletti , Rahil Gandotra , Hao Guo , Aylin Yener

Much of the energy consumption in buildings is due to HVAC systems, which has motivated several recent studies on making these systems more energy- efficient. Occupancy and activity are two important aspects, which need to be correctly…

Machine Learning · Computer Science 2014-09-09 Rajib Rana , Brano Kusy , Josh Wall , Wen Hu

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

Smart buildings use occupancy sensing for various tasks ranging from energy-efficient HVAC and lighting to space-utilization analysis and emergency response. We propose a people counting system which uses a low-resolution thermal sensor.…

Computer Vision and Pattern Recognition · Computer Science 2020-05-06 Mertcan Cokbas , Prakash Ishwar , Janusz Konrad

A building's environment has profound influence on occupant comfort and health. Continuous monitoring of building occupancy and environment is essential to fault detection, intelligent control, and building commissioning. Though many…

Computers and Society · Computer Science 2014-09-08 Kevin Weekly , Ming Jin , Han Zou , Christopher Hsu , Alexandre Bayen , Costas Spanos
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