%0 Journal Article
%T IoT Based Greenhouse Real-Time Data Acquisition and Visualization through Message Queuing Telemetry Transfer (MQTT) Protocol
%A Vincent de Paul Niyigena Kwizera
%A Zhanming Li
%A Victus Elikplim Lumorvie
%A Febronie Nambajemariya
%A Xiaowei Niu
%J Advances in Internet of Things
%P 77-93
%@ 2161-6825
%D 2021
%I Scientific Research Publishing
%R 10.4236/ait.2021.112006
%X One of the most indispensable needs of life is food and its worldwide
availability endorsement has made agriculture an essential sector in recent
years. As the technology evolved, the need to maintain a good and suitable
climate in the greenhouse became imperative to ensure that the indoor plants
are more productive hence the agriculture sector was not left behind. That
notwithstanding, the introduction and deployment of IoT technology in
agriculture solves many problems and increases crop production. This paper
focuses mainly on the deployment of the Internet of Things (IoT) in acquiring
real- time
data of environmental parameters in the greenhouse. Various IoT technologies
that can be applicable in greenhouse monitoring system was presented and in the
proposed model, a method is developed to send the air temperature and humidity
data obtained by the DHT11 sensor to the cloud using an ESP8266-based NodeMCU
and firstly to the cloud platform Thing- Speak, and then to Adafruit.IO in which MQTT
protocol was used for the reception of sensor data to the application layer
referred as Human-Machine Interface. The system has been completely implemented
in an actual prototype, allowing the acquiring of data and the
publisher/subscriber concept used for communication. The data is published with
a broker¡¯s aid, which is responsible for transferring messages to the intended
clients based on topic choice. Lastly, the functionality testing of MQTT was carried out and the results showed
that the messages are successfully published.
%K Greenhouse
%K Sensors
%K Monitoring System
%K Internet of Things (IOT)
%K Thing-Speak
%K Data Visualization
%K MQTT
%K Adafruit.IO
%K MQTT Testing
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=108890