Multi-Points Indoor Air Quality Monitoring Based on Internet of Things

Liu, Zhibin; Wang, Guangwen; Zhao, Liang; Gao, Yang

doi:10.1109/access.2021.3073681

Cited by 34 publications

(13 citation statements)

References 29 publications

(31 reference statements)

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“…In accordance with researches [1][2][3], human beings spend the vast majority of their time, averaging 80 to 90 percent a day, indoors. Temperature and humidity in a room have big impacts on one's sleep, learning, subjective well-being and comfort degree, etc.…”

Section: Introductionsupporting

confidence: 70%

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A direct nonlinear humidity and temperature tracking controller for an air-handling unit based on backstepping scheme

Sun

Liu

Li³

et al. 2022

Preprint

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Aim at an air-handling unit (AHU), this article describes a direct design scheme for humidity and temperature tracking control. The nonlinear dynamic model of the AHU is treated directly by backstepping strategy, which can reserve the modeling qualifications and make better use of known information than proportion integration differentiation (PID) and other non-model-based schemes. Simultaneously, the linearization technique is not adopted, so that the model structure is not changed, which can retain the original system model restrictions to variables and does not lose useful conditions about the system model. These two points ensure the developed controller to achieve higher accuracy and better tracking performance, which is verified by stability analysis and comparisons of simulation results.

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Section: Introductionsupporting

confidence: 70%

“…In order to study the performance of the system, certain assumptions are enacted, which do not change the holistic effect [35]. Then, combining with thermodynamics, heat and mass transfer laws [35][36][37], the nonlinear dynamic model of the AHU can be written as (1).…”

Section: The Descriptions Of the Workflow And Ahu System Modelmentioning

confidence: 99%

A direct nonlinear humidity and temperature tracking controller for an air-handling unit based on backstepping scheme

Sun

Liu

Li³

et al. 2022

Preprint

View full text Add to dashboard Cite

show abstract

“…The system's technical features were tested in the office environment, and provided great platform for future research, but more focused investigation is still required to better understand air quality indications and the effect on the users. Studies [30] and [31] also provided IoT based air quality system development, but their application was tested specifically for residential circumstances. Study [30] proposed an open source system for monitoring air parameters, i.e.…”

Section: Figure 2 Frequency Of the Iaq Measured Parameters In The Lit...mentioning

confidence: 99%

Importance of air quality indicators for office environments: An overview

Čulić

Nižetić

Šolić

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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Air quality in office buildings has got an impact on working productivity as well as on the working satisfaction in office environments. Moreover, final effect can be linked with thermal comfort conditions since they have significant impact on energy consumption in offices. In this study various factors have been investigated and analysed in order to understand their impact on air quality and occupants’ satisfaction with the environmental conditions. The second perspective of the overview was focused on analysis of the air quality interconnection with thermal comfort conditions, since they are linked. The current issues as well as challenges in the field were also discussed within this investigation. The results of conducted research would be directly useful for more advanced consideration of personal air quality and thermal comfort conditions as vital aspect of smart and high-performance buildings.

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“…It also put an emphasis on the energy consumption and efficiency of the model. An IoT based monitoring system was proposed by Zhibin Liu1 [10] using Zigbee for monitoring of indoor air quality which monitors PM2.5, CO2, temperature & humidity. The data collected through IoT devices are shared using GPRS / 4G Network.…”

Section: Related Workmentioning

confidence: 99%

Development of Internet of Things (IoT) Based Monitoring of Hazardous Exhaust Compounds in Air - A Review

Bagal¹,

Choudhari

Chaudhari

2022

ITM Web Conf.

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Presence of pollutants in Air is the most prominent problem globally confronted now a day. The extreme use of fueled vehicles and rapid urbanization has deteriorated the air quality. This deteriorated air contains hazardous compounds like Mono-oxides & Di-oxides of carbon, Sulphur, Nitrogen, Atmospheric Particulate Matter. Exposure to such hazardous compounds in the air for a long time can cause damage to the human health. Traditional air monitoring systems consists of monitoring stations. As far as traditional air quality monitoring methods are concerned, they are highly expensive and requires a regular maintenance. Due to these limitations, these stations are deployed in small numbers and also it provides indicative values of the sensed data. This monitored data has low resolution and precision. This paper proposes framework for the development of smart and portable system using Internet of Things (IoT) for monitoring of hazardous exhaust compounds in the air using real time. This framework consists of different types of sensors and a controller that are used for monitoring and assessment of the air quality. Also it is used to check the presence of hazardous compounds emitted by different industries and share this data through IOT. The outcome of the proposed research work can be utilized by industries as well as by other agencies to carry out an audit of hazardous exhaust components present in air, so as to take necessary precautions and to save human.

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Multi-Points Indoor Air Quality Monitoring Based on Internet of Things

Cited by 34 publications

References 29 publications

A direct nonlinear humidity and temperature tracking controller for an air-handling unit based on backstepping scheme

A direct nonlinear humidity and temperature tracking controller for an air-handling unit based on backstepping scheme

Importance of air quality indicators for office environments: An overview

Development of Internet of Things (IoT) Based Monitoring of Hazardous Exhaust Compounds in Air - A Review

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