Physical design of io t

understanding physical design of internet of things in simple way
iot devices
iot protocols

1. PHYSICAL DESIGN OF IoT SHILPA KRISHNA,RESEARCH SCHOLAR

2. Physical design of IoT refers to IoT devices and IoT protocols

3. THINGS Things refers to IoT devices which have unique identities and can perform remote sensing , actuating and monitoring capabilities IoT devices can be various type : sensing devices , smart watches , smart electronic appliances , wearable sensors , automobiles and industrial machines

4. Generic Block Diagram of IoT Devices

5. IoT PROTOCOLS IoT protocols help to establish communication between IoT device and cloud based server over the internet It help to sent commands to IoT device and received data from an IoT device over the internet

6. HTTP CoAP Web Sockets MQTT XMPP DDS AMQP TCP UDP IPv4 IPv6 6LoWPAN 802.3-Ethernet 802.16-WiMax 802.11-WiFi 802.15.4-LR-WPAN 2G/3G/ LTE - Cellular

7. Application Layer HTTP(Hypertext Transfer Protocol) Transmitting hypermedia documents such as HTML It was designed for communication between web browsers and web servers HTTP is a stateless protocol , meaning that the server does not keep any data between two requests

8. CoAP (Constrained Application Protocol) It is a specialized internet application protocol for constrained devices It enables devices to communicate over the internet The protocol is especially targeted for constrained hardware such as 8-bits microcontrollers,low power sensors

9. WebSocket The websocket protocol enables two-way communication between a client running untrusted code in a controlled environment to a remote host that has opted in to communications from that code

10. MQTT It is machine-machine(M2M)/”Internet of Things” connectivity protocol It was designed as an extremely lightweight publish/subscribe messaging transport and useful for connections with remote locations

11. XMPP(Extensible Messaging and Presence Protocol) It is a communication protocol for message-oriented middleware based on XML It enables the near real time exchange of structured yet extensible data between any two or more network entities

12. DDS(Data Distribution Service) It is a middleware protocol It integrates the components of a system together providing low-latency data connectivity , extreme reliability and a scalable architecture

13. AMQP The AMQP protocol enables patron programs to talk to the dealer and engage with the AMQP model

14. Transport Layer TCP(Transmission Control Protocol) It is a standard that defines how to establish and maintain a network conversation through which application programs can exchange data TCP works with the Internet Protocol(IP),which defines how computers send packets of data to each other

15. UDP(User Datagram Protocol) It is a part of Internet Protocol Suite , referred as UDP/IP suite It is unreliable and connectionless protocol So , there is no need to establish connection prior to data transfer

16. Network Layer IPv4 Internet Protocol version 4(IPv4) defines an IP address as a 32-bit number

17. IPv6 It defines 128 bits for the IP address It was developed to deal with the long-anticipated problem of IPv4 address exhaustion

18. 6LoWPAN(Low-Power Wireless Personal Area Networks) This protocol allows for the smallest devices with limited processing ability to transmit information wirelessly using an internet protocol

19. Link Layer 802.3-Ethernet It is a set of technologies and protocols that are used primarily in LANs Ethernet is classified into two categories : classic Ethernet and switched E thernet

20. 802.11-WiFi It specifies the set of MAC(Media Access Control) and physical layer protocols for implementing WLAN(wireless local area network) WiFi computer communication in various frequencies

21. 802.16 - Wi-Max It is a standard for Wireless Metropolitan Area Network(WMAN) It is specializing in point-to-multipoint broadband wireless access

22. 802.15.4 – LR – WPAN A collection of standards for Low-Rate Wireless Personal Area Network The standards provide low-cost and low-speed communication for power constrained devices

23. 2G/3G/4G-Mobile Communication These are different types of telecommunication generations IoT devices are based on these standards can communicate over the cellular networks

24. THANKS FOR WATCHING