Application of Internet of Things in academic buildings for space use efficiency using occupancy and booking data

Azizi, Shoaib; Nair, Gireesh; Rabiee, Ramtin; Olofsson, Thomas

doi:10.1016/j.buildenv.2020.107355

Cited by 24 publications

(21 citation statements)

References 43 publications

(78 reference statements)

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“…All the teachers interviewed expressed their preference to deliver their lectures on forenoons. This is in line with [11], wherein the lecture halls were found to be relatively underutilized during afternoons. Teachers' preference for lectures in the morning can be a challenge to optimize space use in lecture halls.…”

Section: Discussionsupporting

confidence: 87%

“…Space use efficiency is an important aspect of sustainability in universities [11], which is an attractive topic for all the studied stakeholders, especially the property office. All the teachers interviewed expressed their preference to deliver their lectures on forenoons.…”

Section: Discussionmentioning

confidence: 99%

“…Time slots between 10:00-15:00 have higher prices, while time slots 8:00-10:00 and 15:00-17:00 have lower prices. The evening time-slots of 15:00-17:00 is the least preferred time slot for the teachers [11]. The property office may consider revising the pricing of this time slot to make it attractive for the department heads to promote these time slots internally.…”

Section: Discussionmentioning

confidence: 99%

See 2 more Smart Citations

A multi-stakeholder perspective on opportunities and challenges for energy efficiency improvement in university buildings

2021

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University buildings are relatively energy-intensive. In Sweden, universities usually operate in rented buildings. In this study, interviews were carried out among three categories of stakeholders in a Swedish university to understand their perceptions of energy use and challenges to improve energy efficiency. As per most interviewees, the university’s top management and Akademiska Hus, which owns the buildings, have the main responsibility to reduce the buildings’ energy and carbon footprint. The heads of departments raised the concern on the non-availability of energy data to take actions to reduce energy use. The use of sensors and information technologies to monitor space use, energy use, and indoor environment are attractive to different stakeholders. The implications of the interview results are discussed.

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Section: Discussionsupporting

confidence: 87%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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A multi-stakeholder perspective on opportunities and challenges for energy efficiency improvement in university buildings

2021

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“…A monitoring system based on PIR (passive infrared radiation) sensors is proposed in [36], where the authors investigated the applicability of large data acquired from IoT tools for enhanced space use management to achieve operational efficiency at universities. The proposed study aims to identify methods for measuring and quantifying space use, that could significantly change during special circumstances such as the COVID-19 pandemic.…”

Section: Iot Infrastructures and Smart Environments For Occupancy Monmentioning

confidence: 99%

On exploiting Data Visualization and IoT for Increasing Sustainability and Safety in a Smart Campus

et al. 2021

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In a world that is getting increasingly digital and interconnected, and where more and more physical objects are integrated into the information network (Internet of Things, IoT), Data Visualization can facilitate the understanding of huge volumes of data. In this paper, we present the design and implementation of a testbed where IoT and Data Visualization have been exploited to increase the sustainability and safety of the Cesena (Smart) Campus. In particular, we detail the overall system architecture and the interactive dashboard that facilitates the management of the campus premises and the timetabling. Exploiting our system, we show how we can improve the campus sustainability (in terms of energy saving) and safety (considering the COVID-19 restrictions and regulations).

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“…As the sensing technologies become more cost-effective and adaptable, new applications in buildings continuously emerge. For example, occupancy sensors may be used for space use management by providing information about space use which allows to improve the efficiency of using energy and resources [5]. Occupancy and indoor environmental sensors can be used together to enable solutions such as demandcontrolled energy systems [6], demand response [7], and behavior change campaigns [8].…”

Section: Introductionmentioning

confidence: 99%

Effects of Positioning of Multi-Sensor Devices on Occupancy and Indoor Environmental Monitoring in Single-Occupant Offices

et al. 2021

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The advancements in sensor and communication technologies drive the rapid developments in the applications of occupancy and indoor environmental monitoring in buildings. Currently, the installation standards for sensors are scarce and the recommendations for sensor positionings are very general. However, inadequate sensor positioning might diminish the reliability of sensor data, which could have serious impacts on the intended applications such as the performance of demand-controlled HVAC systems and their energy use. Thus, there is a need to understand how sensor positioning may affect the sensor data, specifically when using multi-sensor devices in which several sensors are being bundled together. This study is based on the data collected from 18 multi-sensor devices installed in three single-occupant offices (six sensors in each office). Each multi-sensor device included sensors to measure passive infrared (PIR) radiation, temperature, CO2, humidity, and illuminance. The results show that the positions of PIR and CO2 sensors significantly affect the reliability of occupancy detection. The typical approach of positioning the sensors on the ceiling, in the middle of offices, may lead to relatively unreliable data. In this case, the PIR sensor in that position has only 60% accuracy of presence detection. Installing the sensors under office desks could increase the accuracy of presence detection to 84%. These two sensor positions are highlighted in sensor fusion analysis as they could reach the highest accuracy compared to other pairs of PIR sensors. Moreover, sensor positioning can affect various indoor environmental parameters, especially temperature and illuminance measurements.

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Application of Internet of Things in academic buildings for space use efficiency using occupancy and booking data

Cited by 24 publications

References 43 publications

A multi-stakeholder perspective on opportunities and challenges for energy efficiency improvement in university buildings

A multi-stakeholder perspective on opportunities and challenges for energy efficiency improvement in university buildings

On exploiting Data Visualization and IoT for Increasing Sustainability and Safety in a Smart Campus

Effects of Positioning of Multi-Sensor Devices on Occupancy and Indoor Environmental Monitoring in Single-Occupant Offices

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