Internet of Things – 7th Semester : Rajasthan Technical University | Bikaner Technical University – Full Course (7CS4-01)
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What is IoT (Internet of Things)

Internet of Things or IoT is a network that consists of a massive number of things (e.g. sensors, machines, or appliances) communicating, sending, and receiving data via the Internet. The number of physical objects that are connected to the Internet has been exponentially growing.

According to Gartner Inc. report, there will be about 21 billion connected devices by the year 2020. There are many domains and fields that the IoT can play an important role and improve the quality of our lives. These domains and fields range from health informatics, smart transportation, smart sensory platforms, to emergency cases where human decision making might be difficult.

One of the main goals of IoT is to facilitate the collection of data from one point to another at any time and anywhere through efficient, secure, and reliable connections

Characteristics of IoT

  • Dynamic and Self-Adapting :
    IoT devices should dynamically adapt themselves to the changing contexts and scenarios.  Assume a camera meant for the surveillance. It should be adaptable to work in different conditions and different light situations (morning, afternoon, night).
  • Connectivity
    Connectivity is an important requirement of the IoT infrastructure. Things of IoT should be connected to the IoT infrastructure. Anyone, anywhere, anytime can connect, this should be guaranteed at all times. For example, connection between people through internet devices like mobile phones ,and other gadgets, also connection between Internet devices such as routers, gateways, sensors, etc. 
  • Self Configuring :
    IoT Devices may have self-configuring capability, allowing a large number of devices to work together to provide certain functionality. Ex. Weather monitoring devices. These devices have the ability configure themselves in association with IoT infrastructure, setup the networking, and fetch the latest software upgrades with minimal manual or user intervention
  • Interconnectivity:
    With regard to the IoT, anything can be interconnected with the global information and communication infrastructure.
  • Heterogeneity:
    The devices in the IoT are heterogeneous as based on different hardware platforms and networks. They can interact with other devices or service platforms through different networks.
  • Safety:
    As we gain benefits from the IoT, we must not forget about safety. As both the creators and recipients of the IoT, we must design for safety. This includes the safety of our personal data and the safety of our physical well-being. Securing the endpoints, the networks, and the data moving across all of it means creating a security paradigm that will scale.
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