The Internet of things (IoT) is the internetworking of physical objects (things) with electronics, software, sensors, actuators, and network connectivity that enable these objects to collect and exchange data. In this project, an IoT prototype through smart lighting has been implemented. Further, an android app which is capable of switching on/off the lighting of a room is developed.
Digital India sets path for various technological innovations. An integral part of digital India is the concept of smart cities. A collection of dynamic system such as smart lighting, smart traffic, smart waste management and many more such smart systems integrate together to form smart cities.
IoT is known as the backbone of any smart environment. As such, by 2020 it has been estimated that around 50 billion connected devices will be there. Recent advances in IoT and decreasing cost of Internet enabled devices further increases the momentum towards Digital India revolution. Smart lighting system is one of them, which is used to improve the efficiency of services, power consumption levels and ultimately the quality of life.
The “Smart Lighting Model” is a simple demonstration of how similar modules will be functioning in a smart city concept.
In the “Smart Lighting Model” an Internet enabled micro-controller is equipped with a light sensor which dynamically measures the light intensity of the surrounding environment. The prototype is equipped with an android app which acts as a controller. In has two modes namely manual and automatic. In manual mode, light can be switched on/off from anywhere in the world by the operator. In automatic mode, light is switched on/off based upon the light intensity of the surrounding environment. The light intensity value is measured by the light sensor attached to the ADC pin of Node MCU.
With the added features, controlling any large building lights becomes easy and simple for the operator. Also because of the ability of taking smart decisions it is ensured that there is no unnecessary wastage of electricity.
For demonstration purpose a localhost network is used. But the same prototype can be used directly via Internet provided the availability of a public IP address.
A plethora of IoT applications are envisaged for improving the quality of lives in urban as well as rural areas. This model can be extended to control an array of street lights in any city by pairing the device with motion and light sensors.
It can also be used for home automation to connect a wide range of appliances.
Furthermore, in a rural environment the device can be attached with a soil moisture sensor which sends soil status to the farmers at regular intervals thereby helping them in taking appropriate steps in due time.