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Internet of things (iot)


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Internet of things (iot)

  1. 1. Introduction to Internet of Things (IOT) Prepared By S.Sankar 16PHD0247 Full Time Research Scholar SCOPE VIT University Guided By Dr. P. Srinivasan PhD Associate Professor SITE VIT University
  2. 2. AGENDA • Definition • History • Introduction • Architecture • Protocol • Implementation Tool • Research areas and challenges • Applications
  3. 3. DEFINITION • Collection of inter-related physical devices connected over the internet that able to exchange the data from one device to another devices with less human involvement
  4. 4. HISTORY OF IOT • British entrepreneur Kevin Ashton coined the term in 1999 while working at Auto-ID Labs. • Kevin Ashton “IOT” definition as “ Global network of objects connected to Radio frequency identification.”
  5. 5. INTRODUCTION • Wireless Sensor Network • Cloud Computing • RFID • RFID connecting to IOT
  6. 6. Wireless Sensor Network: • A wireless sensor network (WSN) is a wireless network consisting of spatially distributed autonomous devices using sensors to monitor physical or environmental conditions.
  7. 7. Difference between WSN and IOT Wireless Sensor Network Internet of Things Things connected to wireless network and gather some data or monitoring the environment IOT= WSN+ Internet + Cloud Storage + Mob/ Web Application
  8. 8. Cloud Computing : Definition: • Cloud computing means storing and accessing the data over internet instead of our computer hard drive
  9. 9. RFID: • RFID is a method of identifying unique object using radio waves • RFID system are made up of three components 1. Reader 2. Antennas 3. Tags
  10. 10. Connecting RFID Tags to IOT
  11. 11. Communication Principle
  12. 12. Address Updating
  13. 13. IOT Architecture Service Oriented Architecture of IOT
  14. 14. 1. Sensing Layer: • it is used to gather data from objects 2.Network Layer: • it provides the infrastructure to support over wired or wireless connection among things 3.Service Layer: • It is used to create and manage the services required by user application 4. Application Layer: • It provides the interaction methods with user application
  15. 15. IOT Common Standards • W3C (World Wide Web Consortium) • IETF(Internet Engineering Task Force) • EPC global • IEEE (Institute of Electrical & Electronics Engineers) • ETSI (European Telecommunications Standards Institute)
  16. 16. IOT Protocol Standards
  17. 17. Application Layer Protocol: 1. Constrained Application Protocol (CoAP): • It follows the stateless client-server architecture • It is suitable for tiny devices with low power, computation and communication capabilities 2. Message Queue Telemetry Transport (MQTT): • It is suitable to connect embedded devices, network with application
  18. 18. 3. Extensible Messaging and Presence Protocol (XMPP) • It is suitable for multi-party chatting, voice and video calling and telecommunity 4. Advanced Message Queuing Protocol(AMQP): • It is wire level protocol 5. Data Distribution service (DDS): • It is used for multicasting application
  19. 19. 2. Infrastructure Protocols: a. Routing Protocol for Low Power and Lossy Networks (RPL): • This protocol is standardized by IETF • This routing protocol supports simple and complex traffic models like i. Point to point ii. Point to multi point iii. Multi point to point
  20. 20. b. 6LoWPAN(IPV6 Low power wireless personal area network): • This standard provides header compression to reduce the data transmission overhead, forwarding to link- layer to support multi-hop delivery
  21. 21. 3. IEEE 802.15.4 (Zigbee) • This protocol was created to specify a sub layer as Medium Access Control (MAC) and Physical Layer (PHY) for low rate wireless private area networks (LR-WPAN) • It provides a reliable communication, operability on different platforms and a large number of nodes
  22. 22. 4. Physical Layer: a. LTE-A ( Long Term Evolution- Advanced): • This protocol is suitable for long term durability of infrastructure especially for smart cities
  23. 23. Implementation Tool Real Time Implementation: 1. Embedded system 2. Wireless network and cloud storage 3. Decision making and Machine learning 4. Web/ Mobile Application Simulation Tool: • Contiki Os – Cooja Simulator
  24. 24. Research Areas and Challenges in IOT • Availability • Reliability • Mobility • Performance • Management • Scalability • Interoperability • Security and privacy • Video based IOT • Social Internet of things
  25. 25. Applications • Transportation and logistics domain • Healthcare domain • Smart environment (home, office, plant , city) • Personal and social domain
  26. 26. References 1. Kevin Ashton,”That ‘ internet of things’ Thing”, RFID journal, 2002. 2. Sandra Dominikus and J• orn-Marc Schmidt,” Connecting Passive RFID Tags to the Internet of Things“, 3. RFID Basics white paper 4. Luigi Atzori, Antonio Iera, Giacomo Morabito,” The Internet of Things: A survey”, Computer Networks 54 (2010) 2787–2805.
  27. 27. 5. Jayavardhana Gubbi,Rajkumar Buyya,Slaven Marusic,Marimuthu Palaniswami,” Internet of Things (IoT): A Vision, Architectural Elements, and Future Directions”, Future Generation computer system, Volume 29, Issue 7, September 2013, Pages 1645– 1660. 6. Shancang Li&Li Da Xu&Shanshan Zhao,” The internet of things: a survey”, Inf Syst Front (2015) 17:243–259.
  28. 28. 7. Maria Rita Palattella, Nicola Accettura, Xavier Vilajosana, Thomas Watteyne,” Standardized Protocol Stack for the Internet of (Important) Things”, IEEE Communications Surveys & Tutorials, Vol. 15, No. 3, Third Quarter,2013. 8. Ala Al-Fuqaha, Mohsen Guizani, Mehdi Mohammadi, Mohammed Aledhari,”Internet of Things: A Survey on EnablingTechnologies, Protocols, and Applications”, Ieee Communication Surveys & Tutorials, Vol. 17, No. 4, Fourth Quarter 2015.
  29. 29. 9. G. Marrocco, C. Occhiuzzi, F. Amato, “ Sensor- oriented passive RFID”, in: Proceedings of TIWDC 2009, Pula, Italy, September 2009. 10. C. Floerkemeier, C. Roduner, M. Lampe, RFID application development with the Accada middleware platform, IEEE System Journal 1 (2) (2007) 82–94.