introduction to iot

1. De
fi
nition and characteristics
of IoT

2. De
fi
nition & characteristics of IoT

3. De
fi
nition of IoT
• A dynamic global network infrastructure with self-con
fi
guring
capabilities based on standard and interoperable communication
protocols where physical and virtual “things” have identities,
physical attributes and virtual personalities and use intelligent
interfaces and are seamlessly integrated into the information
network, often communicate data associated with users and their
environments.

4. Details on important terms in the de
fi
nition
• Dynamic and self-adapting
• Surveillance camera-normal and infrared modes
• Low and high-resolution mode
• Self con
fi
guring
• Fetch latest s/w upgrades
• Interoperable communication protocols
• Unique identity
• Integrated into information network
• weather monitoring IoT node

5. Physical Design of IoT
• Things in IoT=IoT devices
• IoT devices perform remote sensing, actuating, and monitoring
capabilities.
• IoT devices can exchange data, process data, or send data

6. General block diagram of an IoT device

7. IoT protocols
• Link layer protocols determines how data is physically sent over
network’s physical layer or medium.
• Hosts on the same link sent data packets over the link layer using
link layer protocols.
• Link layer determines how the packets are coded and signalled by
the hardware device over the medium to which the host is attached.

8. Link layers protocols in the context of
IoT
• 802.3 Ethernet - IEEE 802.3 is a collector wired Ethernet standard
for the link layer.
• 802.11 Wi
fi
- IEEE 802.11 is a collection of WLAN communication
standards.
• 802.16 WiMax - IEEE 802.16 is a collection of wireless broadband
standards including extensive description for the link layer

9. • 802.15.4 LR-WPAN - IEEE 802.15.4 is a collection of standards for
low-rate wireless personal area networks. This is the basis for high-
level communication protocols such as ZigBee.
• 2G/3G/4G Mobile communication - these are different generation of
mobile communication standards.

10. Network/Internet layer
• This layer is responsible for sending IP datagrams from source network
to the destination network.
• This layer performs host addressing and packet routing
• Host addressing is done using IPv4 or IPv6.
• IPv4
• IPv6
• 6LoWPAN