Design and Implementation of Air Conditioning Monitoring System Based on Heterogeneous Wireless Communication

Now, a lot of companies that use the Supervisory Control and Data Acquisition (SCADA), and it can help companies to monitor and manage the air-condition system. The most common structure of SCADA is to use PLC (Programmable Logic Controller) on the field side to remote control, status monitoring, and data collection of peripheral components. In the traditional way, most of the transmission and connection methods used are mainly based on physical lines. There is a lot of cost to build or maintain. This study main considers on the implementation of the wireless air-conditioning monitoring system, which uses LoRa, Zigbee, and Wi-Fi wireless communication modules, and Micro Control Units (MCU) are also installed on these modules. Using a decentralized architecture shortens the construction time and reduces the difficulty of maintenance and debugging. This study's results can provide many organizations and companies with an alternative system on the Node-RED free development platform, which can be applied in the future with low cost and security.