MQTT 프로토콜을 이용한 사물인터넷 실습 교육에 관한 연구
A Study on the Practical Education of Internet of Things (IoT) Using the MQTT Protocol
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초록
고등 교육기관에서 운영되고 있는 사물인터넷 교육은 각종 센서를 아두이노와 같은 오픈소스 디바이스에 연결하고 블루투 스, WiFi 등의 근거리 통신을 통해 센서를 제어하거나 센서의 상태를 모니터링하는 사물간 통신 정도를 다루고 있다. 진정한 의 미의 사물인터넷 교육이 되기 위해서는 사물인터넷을 구성하는 5가지 구성요소인 SDNPS(Sensor, Device, Network, Platform, Service)을 통합하여 실습을 수행해 보아야 한다. 본 논문에서는, 사물인터넷을 교육하는데 있어 5가지 구성요소 모두를 효과 적으로 교육할 수 있는 방법을 다루고 있는며 응용 서비스로 스마트 팜 시스템을 고려하여 시스템을 설계 및 구현해 보았다. LoRaWAN과MQTT 네트워크로 구성된 스마트 팜시스템을 구성하여 실험을 수행하였으며 스마트 팜시스템이 정상적으로 동 작하여 스마트 폰앱에서 센서의 상태를 언제 어디서나 모니터링 할수있음을 확인하였다.
Abstract
In higher education institutions, Internet of Things (IoT) education typically involves connecting various sensors to open-source devices such as Arduino and controlling or monitoring sensor status through short-range communication technologies like Blue- tooth or WiFi. In order to truly become IoT education, it is necessary to conduct a practice by integrating SDNPS (Sensor, Device, Network, Platform, and Service), the five components that make up the IoT. This paper deals with how to effectively educate all five components in educating IoT, and designs and implements the system in consideration of the smart farm system as an application service. The experiment was conducted by configuring a smart farm system consisting of LoRaWAN and MQTT networks, and it was confirmed that the smart farm system operates normally and the sensor status can be monitored anytime, anywhere in the smartphone app.
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