Abstract
In the era of Industry 4.0, remote monitoring and controlling appliance/equipment at home, institute, or industry from a long distance with low power consumption remains challenging. At present, some smart phones are being actively used to control appliances at home or institute using Internet of Things (IoT) systems. This paper presents a novel smart automation system using long range (LoRa) technology. The proposed LoRa based system consists of wireless communication system and different types of sensors, operated by a smart phone application and powered by a low-power battery, with an operating range of 3–12 km distance. The system established a connection between an android phone and a microprocessor (ESP32) through Wi-Fi at the sender end. The ESP32 module was connected to a LoRa module. At the receiver end, an ESP32 module and LoRa module without Wi-Fi was employed. Wide Area Network (WAN) communication protocol was used on the LoRa module to provide switching functionality of the targeted area. The performance of the system was evaluated by three real-life case studies through measuring environmental temperature and humidity, detecting fire, and controlling the switching functionality of appliances. Obtaining correct environmental data, fire detection with 90% accuracy, and switching functionality with 92.33% accuracy at a distance up to 12 km demonstrated the high performance of the system. The proposed smart system with modular design proved to be highly effective in controlling and monitoring home appliances from a longer distance with relatively lower power consumption.
Highlights
People in business and industries engage with modern tools and technology to monitor and control their daily activities
The results demonstrated the suitability of low power and wide range (LoRa) technology in smart buildings
The system was developed at low cost with a capability of monitoring and controlling from a distance ranging from 3 km to 12 km through LoRa based wireless communication
Summary
People in business and industries engage with modern tools and technology to monitor and control their daily activities. Another IoT based automation system was proposed in [13] which could control and monitor home via mobile phone through internet connection. A The research work has designed and developed a smart IoT system with ESP32 module and LoRa wireless communication module for long range communication (3 km to 12 km) via transmitting and receiving data at low power consumption in order to overcome the limitation of existing short distance (10 m–100 m) communication technologies. The integration of temperature/humidity measurement capability would open further deployment opportunities of the current system in other applications
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