Machine to machine communication (M2M)

1. Machine to machine communication(M2M) Speaker: Lin Ka Sing (10038744)

2. Internet of things (IOT)

3. Internet of things • Internet connects all people, so it is called “the Internet of People” • IoT connects all things, so it is called “the Internet of Things”

4. Internet of things • Today Internet mainly dependent on human for information • More than 50 * 1015 (tetra)bytes of data available on the Internet were created by human beings • People have limited time, attention and accuracy • Today's information technology is so dependent on people 10 10101010

5. Internet of things • IOT allow us to track and count everything • Reduce waste, loss and cost • Know when things needed replacing, repairing or recalling, and whether they were fresh or expired. • Equally or even more potential than internet

6. Internet of things • M2M communication • V2V communication • Web of things • Object hyperlinking

7. Machine to machine communication(M2M)

8. M2M? • A subset of IOT • Communication among machine, sensor, device, or “THINGS” • Allow devices exchanging information via network (MAC) • M2(CN2)M • Protocols between machine • NO human intervention when operating • Data flow from machine (to gateway then) to people ultimately • Include wireless and wired devices

9. Fig. data flow between machines and finally reach the application surface Source: “M2M in vehicular network”, M.J. Booysen

10. WHY M2M? Telecommunication industry Cost/ profit • Mobile market is becomes saturated • About 5 billion (over 8 billion) people already connected • Market is highly competitive (5 MNPs in HK) • High investment, low revenue • Machine market not yet developed • More than 50 billion machines • Large potential • Low investment, high net return • Automatic operation • Self-organization, Reliable • Power efficiency profit cost Bandwidth /Speed

11. WHAT M2M? • Nothing new • Combine 3 Common technology: wireless sensor, internet and PC • Machine can talk to each other by the communication network • A stolen phone can report its location • A robbery can be detected by an alarm system • An escalator can be shunted down during the non-busy period • Reduce carbon footprint • SAVE THE PLANET!

12. How M2M works? • M2M are low data rate communication • M2M device located at varies position • Require Data compression or “processing” Data rate Mobile network (e.g. CDMA, LTE) WiFi WLAN 100MB/s Short range communication (e.g. Zigbee) M2M 1KB/s Distance 10m 10Km

13. How M2M works? • Divided into 4 stages • Were done by different M2M device and M2M gateway Data Collection Data Transmission Data Assessment Response network network User application Machine Machine gateway

14. Data Collection network network User application Machine Machine gateway

15. Data Collection • Taking data from a machine • Goal: • Analyzing data • Bridge the machine in a intelligent way • Send a constant stream of real time data • Sometime not necessary • Minimize the data sent • By constant reviewing

16. Data transmission network network User application Machine Machine gateway

17. Data Transmission • 3 “good” method for transporting data • Depend on the situations • Telephone lines • Communication satellites • Cellular network

18. Data Transmission – telephone lines • Best if there is already installed by other uses • Share cost • By transmitting data through existed lines • Monthly cost • Difficult to install

19. Data Transmission – Communication satellites • Best if the device are far away • No distance constrict • No addition installation cost • Most expensive

20. Data Transmission – Cellular network (CDMA) • Best fitting • Wide spread coverage • Enable the development of M2M • Can transmit large amount of data • Cost drop when there are more machines (/users)

21. Data Transmission • Requires the use of gateway • Receive the data • Convert and sent to the network operation center • Data security and access control • Enable the reverse –transmission ( network <-> machine) • High bandwidth internet signal <-> low bandwidth machine protocols • Optimization

22. Data assessment & Response network network User application Machine Machine gateway

23. Data assessment & Response • Data assessment • Data sent from a machine will: • Show up in some software (PC) • Go to some “standalone” system (LCD) • User or machine itself can observe the situation • Response • Automate a decision by the machine data • Use right data in a right place by a right way

24. M2M applications

25. Application • Smart Grid • Power utility was monitored • Improve the efficiency of power consumption • E.g. calculate the best temperature for air conditioning

26. Application • Home networking • Arrange media devices automatically • Provide extra service to users • E.g. Play relax music when back home

27. Application • Health care • Monitor people health in real time • Dispatch ambulance immediately when any accident happened • E.g. Give nutrient recommendation

28. Application • Traffic management • Avoid road congestion • Reduce the fuel consumption • Comfortable path

29. Reference • Machine to Machine technologies: Unlocking the potential of a $1 trillion industry, Matt cullinen • The global M2M market in 2013, Matt Hatton • Trust in M2M communicating, Inhyok Cha • Machine to machine communication, David Crowe • M2M: From mobile to embedded internet, Geng Wu • http://www.ericsson.com • http://www.m2mcomm.com • http://en.wikipedia.org/wiki/Machine_to_machine

30. M2M communication - Do more, with less