Design and Implementation of MQTT Based Real-time HVAC Control Systems

Abstract

In this paper, an MQTT based protocol is designed and implemented for control, management and monitoring of HVAC in a cloud platform in real time. The MQTT protocol is a two-way messaging protocol, and has the generality, flexibility, light weighted, quickness with reliability and security. In the implemented system, performance and reliability of the communication protocol is considered for data acquisition and control between the CCU and the cloud server. Control and monitoring for the cloud server is performed in real time in conjunction with CCU and the MQTT server.키워드 : MQTT, 공조제어, 클라우드, 실시간 제어 및 모니터링

IoT-Based Research Equipment Sharing System for Remotely Controlled Two-Photon Laser Scanning Microscopy

“…These studies used their equipment-specific protocols to operate equipment remotely and have a limitation to expand to other equipment. Recently, the Internet of Things (IoT) [ 14 ], one of the representative 4IR technologies, has been introduced and is extensively used for exchanging data between devices, mostly by monitoring signals from various sensors [ 15 , 16 , 17 ]; it also has been employed in controlling systems [ 18 ]. Nevertheless, IoT-based remote operation has not been applied to share equipment up to now, and demand on standard protocol still exists for sharing pieces of equipment.…”