Energy Aware IoT based Green Smart University with Automated Lighting and CCTV System using MQTT and MySQL

Abstract

The world of the Internet of Things (IoT) has exploded and expanded rapidly in recent years. IoT is made up of several connected devices and sensors that communicate by exchanging data through the internet. With exponential growth in the number of installed devices and sensors, conservation of energy is a buzzing topic in the field. IoT facilitates the conservation of energy by enabling the management of data collected from various sensors. The paper presents an implementation of Energy-aware Smart University focusing on Smart Lighting, Air-conditioning, and Ventilating system, whose scope can be expanded to any electrical appliances. This paper attempts to make a low-cost, energy-efficient system. The proposed solution uses Message Queuing Telemetry Transport (MQTT) Client protocol, an IEEE 802.3 standard Ethernet connectivity shield for internet publishing, and a set of sensors such as PIR Sensor and 5 Megapixel infrared camera supported by the raspberry pi for obtaining real-time data. The electrical appliances are turned on only when motion sensors detect movement, and the presence of humans is confirmed using image processing on pictures captured by the Pi Camera. As a result, a significant amount of energy is saved by preventing the continuous operation of the appliances. The data is stored using the MySQL database, which could be accessed using an Android application remotely, which would make this an easily accessible and operational automation system.