Internet of Things and Its Relevance

Introduction

According to Yasuura et al. (2017), the “Internet of Things” (IoT) is one of the most innovative technologies of the modern era. This technology connects our real-world to the virtual world using transducers and permits them to communicate, to exchange useful information. IoT sometimes also called the Internet of Objects, is an interconnection of Transducer that smartly collaborated with other devices. It is a device that transforms one form of energy into another. It is additionally used for changing some electrical phenomenon into an associate electrical impulse. Transducers are broadly classified into sensors and actuators. The function of an actuator is that the inverse of a sensor. Sensors are used to take input from the outside world and the Actuator is used to convert the system’s electric signals into physical entities. It transmits, the electrical key into the physical lash. There are, different kinds of actuators implicate in systems and alternative motor devices. The sensor is employed to collects data and transfers the information to the gateway unit of IoT. The analogous commands to the sensed input are distributed once more to an actuator to manage the system. According to Cisco, the number of IoT devices has increased to 50 Billion in 2020 and will increase 1 Trillion in 2022 which is enormously large when compared with the world’s population as depicted in Figure 1 according to (Evans, D. (2011)). Every day, the number of Internet of Things (IoT) devices grows. The cause for the rise of IoT devices is that they make life easier for people and perform tasks more efficiently than humans. IoT has many advantages, but it also has some drawbacks, such as ineffective management, energy efficiency, identity management, protection, and privacy. The most important problems in the creation of IoT are security and privacy. All devices in the Internet of Things are linked to the Internet because they can't function without it. On the Internet, there are numerous attackers who steal the sensitive details of items (Burhan & Rehman, 2018).

Figure 1.

Number of connected devices with respect to world's population

The main idea of (Madakam et al., 2015) behind IoT is to create a much better place for people to control the devices, without any physical intervention. Virtually everything becomes “smart” as a result of the Internet of Things, which uses the power of data collection, AI algorithms, and networks to enhance aspects of our lives. According to (Granjal et al., 2015), as sensor networks are an important part of an IoT system Table 1 shows the relationship between the sensor network and IoT.