Internet of Things: Demonstration. Mr. Bernard G. Cruz Lecturer

Transcription

1 Internet of Things: Demonstration Mr. Bernard G. Cruz Lecturer

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3 I N T E R N E T a network of networks using a physical cable or wireless media for connection interconnection of all LANs and WANs across the globe

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5 CONNECTING The Internet of Things (IoT) is a term coined by Kevin Ashton back in 1999 THE and the term quickly gained popularity UNCONNECTED as a way to refer to physical devices that are able to connect and exchange data.

6 The IoT is helping industries including manufacturing, utilities, oil and gas, transportation, mining, and public and private sector organizations increase operational efficiency.

7 How to How to secure How to integrate the these new integrate new millions of devices, each things into the Companies devices from and cities are now configured with existing network increasingly different deploying IoT solutions. varying levels infrastructure of vendors that security However, use custom this rapid increase in growth has applications also introduced new challenges including:

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9 It is now largely overlapped, confused and even mystified with the term Internet of Everything (IoE). R E M E M B E R IoT is the connectivity among physical objects and no longer holds in its original form.

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11 It lies UNDERSTANDING in the intelligent connection. Rather than physical objects communicating, THE network intelligence CONNECTED is used to bring all of the concepts together to a more united system.

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13 People Considered as end-nodes connected across the internet to share information and activities. EXAMPLES: health and fitness sensors

14 THINGS Physical sensors, devices, actuators and other items generating data or receiving information from other sources for intelligent decision making; often called Internet of Things (IoT). EXAMPLES: smart thermostats and gadgets.

15 DATA Raw data analyzed and processed into useful information to enable intelligent decisions and control mechanisms. EXAMPLES: temperature logs converted into an average number of high-temperature hours per day

16 PROCESSES Leveraging connectivity among data, things and people to add value. EXAMPLES: the use of smart fitness devices and social networks to advertise relevant healthcare offerings to prospective customers.

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18 the Internet of Things as the equivalent of a railroad line, including the tracks and the connections, whereas the Internet of Everything is all of that and the trains, ticket machines, staff, customers, weather conditions, etc.

19 BEAR IN MIND! The IoT needs standard protocols. Two of the most promising for small devices are MQTT and

20 MQTT Message Queuing Telemetry Transport

21 MQTT gives flexibility in communication patterns and acts purely as a pipe for binary data. MQTT is a publish/subscribe messaging protocol designed for lightweight Machine to Machine communications. It was originally developed by IBM and is now an open standard.

22 ARCHITECTURE MQTT has a client/server model, where every sensor is a client and connects to a server, known as a broker, over TCP. MQTT is message oriented. Every message is a discrete chunk of data, opaque to the broker.

23 Every client subscribed to a topic receives every message published to the topic. ARCHITECTURE Every message is published to an address, known as a topic. Clients may subscribe to multiple topics.

24 examples For example, imagine a simple network with three clients and a central broker.

25 SECURITY MQTT brokers may require username and password authentication from clients to connect. To ensure privacy, the TCP connection may be

26 o pe n HAB

27 L I N K T O O P E N H A B

28 Required OS, software & Utilities openhabian operating system Arduino Integrated Development Environment (IDE) Etcher Putty or Terminal

29 Required Devices Modem Router/ Router Raspberry Pi Arduino Uno Ethernet Shield Prototype Shield

30 Required basic components Camera Ultrasonic sensor (HC-SR04) Temperature and Humidity Sensor DHT 11/DHT 22 Light Sensor PIR Motion Sensor Gas Sensor (MQ2) Fire Sensor LEDs 10k ohms Resistors Connecting wires RFM69HW

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