scholarly journals A novel air quality monitoring and improvement system based on wireless sensor and actuator networks using LoRa communication

2021 ◽  
Vol 7 ◽  
pp. e711
Author(s):  
Truong Van Truong ◽  
Anand Nayyar ◽  
Mehedi Masud
Keyword(s):  
Air Quality ◽  
Loss Rate ◽  
Sensor Nodes ◽  
Quality Monitoring ◽  
Full Duplex ◽  
Wireless Sensor ◽  
Air Quality Monitoring ◽  
Relay Nodes ◽  
System Information ◽  
Online Software

In this paper, we study the air quality monitoring and improvement system based on wireless sensor and actuator network using LoRa communication. The proposed system is divided into two parts, indoor cluster and outdoor cluster, managed by a Dragino LoRa gateway. Each indoor sensor node can receive information about the temperature, humidity, air quality, dust concentration in the air and transmit them to the gateway. The outdoor sensor nodes have the same functionality, add the ability to use solar power, and are waterproof. The full-duplex relay LoRa modules which are embedded FreeRTOS are arranged to forward information from the nodes they manage to the gateway via uplink LoRa. The gateway collects and processes all of the system information and makes decisions to control the actuator to improve the air quality through the downlink LoRa. We build data management and analysis online software based on The Things Network and TagoIO platform. The system can operate with a coverage of 8.5 km, where optimal distances are established between sensor nodes and relay nodes and between relay nodes and gateways at 4.5 km and 4 km, respectively. Experimental results observed that the packet loss rate in real-time is less than 0.1% prove the effectiveness of the proposed system.

Deployment of Wireless Sensor Networks for Air Quality Monitoring

2013 ◽  
Vol 712-715 ◽  
pp. 1851-1855 ◽  
Author(s):  
Ming Wei Wang ◽  
Yue Wang ◽  
Qiang Hua Li
Keyword(s):  
Air Quality ◽  
Sensor Nodes ◽  
Quality Monitoring ◽  
Wireless Sensor ◽  
Air Pollution Control ◽  
Air Quality Monitoring ◽  
Transportation Industry ◽  
Residential Areas ◽  
Air Quality Forecast ◽  
Monitoring Center

At present, the effective technical means for air quality forecast and air pollution control is imperative for China environment utilities because of the increasing and serious environment pollution problems. In this paper, we discuss an air quality monitoring scenario which utilizes the wireless sensor network (WSN) to monitor the air quality of the transportation, industry and residential areas. Using the WSN, it is possible to deploy a large number of sensor nodes randomly distributed throughout the monitored area to capture environmental information of CO2, NO, NO2 and total suspended particulates. To achieve this goal, a special WSNs architecture is proposed, where the sensor nodes and coordinator nodes are designed by using ZigBee-based prototype wireless network, using GPRS to transmit the data from coordinator node to monitoring center, and designing the monitoring center server accessed from remote terminals through internet. In addition, the open source software (OSS) is proposed to design the database and website of the server. The designed air quality monitoring system reduces the cost of network installation and maintenance and provides a data delivery service for the air quality monitoring service in a timely and reliable manner.

scholarly journals C-AQM: A CROWD-SOURCED AIR QUALITY MONITORING SYSTEM

2018 ◽  
Vol XLII-4 ◽  
pp. 491-497
Author(s):  
M. E. Parés ◽  
F. Vázquez-Gallego
Keyword(s):  
Air Quality ◽  
Communication Systems ◽  
Low Cost ◽  
City Council ◽  
Sensor Nodes ◽  
Quality Monitoring ◽  
Air Quality Monitoring ◽  
Energy Sensor ◽  
Environment Service ◽  
Quality Maps

<p><strong>Abstract.</strong> European cities are currently facing one of the main evolutions of the last fifty years. “Cities for the citizens” is the new leitmotiv of modern societies, and citizens are demanding, among others, a greener environment including non-polluted air. Improved sensors and improved communication systems open the door to the design of new systems based on citizen science to better monitor the air quality. In this paper, we present a system that relies on the already available Copernicus Environment Service, on Air Quality Monitoring reference stations and on a cluster of new low-cost, low-energy sensor nodes that will improve the resolution of air quality maps. The data collected by this system will be stored in a time series database, and it will be available both to city council managers for decision making and to citizens for informative purposes. In this paper, we present the main challenges imposed by Air Quality Monitoring systems, our proposal to overcome those challenges, and the results of our preliminary tests.</p>

Wireless Sensor used in Indoor Air Quality Monitoring System

2011 ◽  
Author(s):  
Tsang-Jyu You ◽  
Wei-Lun Lee ◽  
Chung-Chih Lin ◽  
Ren-Guey Lee ◽  
Chao-Heng Tseng ◽  
...  
Keyword(s):  
Air Quality ◽  
Indoor Air Quality ◽  
Monitoring System ◽  
Indoor Air ◽  
Quality Monitoring ◽  
Wireless Sensor ◽  
Air Quality Monitoring
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