Lab introduction

1. IoT Technologies and Practice
Hands-on learning, experiments and application development

2. 2IoT Enabling Technologies
Open source technology
IPv6Ubiquitous wireless coverage
Cheap processing
Cheap sensors
IoT Enabling
Technologies
Big data/Cloud

3. 3IoT Advantages and Applications
• Wearable devices
• E-health and fitness
• Security and safety monitoring
• Smart home/office/building
• Industry control/monitoring/fault detection
• Environmental monitoring
• Vehicular sensor network/fault detection/driving
assistance
• ……And MANY MORE……
Applications
Connectivity Manageability Big data
New
opportunities

4. 4Simplified IoT Architecture

5. 5Sensors and Actuators - examples
DHT11 Temperature &
Humidity Sensor
Strain gage

6. 6Embedded System

7. 7
• General purpose OS is likely not
suitable for an embedded system.
• Embedded OS should be compact,
efficient, and reliable.
• Typical embedded OS:
Fast and light weight thread switch
Realtime scheduling
Small size
Responds to external interrupts quickly
Embedded OS
Contiki: the most popular
embedded OS when looking at
Watch, Stars, and Forks.

8. 8Wireless Networks

9. 9
• Last-mile connectivity is one of the
most significant challenges in the
IoT, with cost and energy
consumption as two key issues for
massive deployment.
• Low Power, low rate and low cost
wireless sensor network (WSN) is an
essential part and key enabler of IoT.
• IPv6 offers the best solution for
implementing sensing, monitoring
or control services at a large scale
with seamless connection to the
Internet.
IoT, Wireless Sensor Network and IPv6

10. 10Cloud Server – Brain of IoT System

11. 11Applications

12. 12
• IoT involves many technologies.
• Learning and developing IoT Application -- where to start?
• Lego building strategy:
Devices
Communications
Cloud
Learning IoT and Building IoT Applications

13. 13TIPoT TCP/IPv6 Wireless Sensor Network Experiment Platform
Cloud server and database
Network Protocol Analyzer
Sensor boardsTIPoT USB Sniffer
TIPoT Mote
TIPoT Gateway
TIPoT R&D Platform
IDE– Eclipse

14. 14Arduino & RPI?
 No OS
 No multithreading
 Not suitable for complicated
applications
 Not built for network
connectivity
 No in-circuit debug
 Good for simple code without
OS overhead
 Good for simple read and
response actions
 Powerful with full Linux OS
 Overkilled for being a simple WSN
node with more power consumption
and many unnecessary functionalities
(e.g HDMI)
 Need extra module for supporting
IEEE 802.15.4 radio
 Need extra efforts for setting up
6LoWPAN support
 Much more difficult to develop WSN
applications
The three products are aiming for different use scenarios. Arduino is good for simple
control applications without OS overhead, TIPoT is good for low power, low rate, low cost
IoT & WSN, while RPi is perfect for projects where you need a generic computer but
don’t require much processing power, want to save on space, and keep the costs low.

15. 15Typical Application Scenarios or Testbed Setup

16. 16Step-by-step Learning
 Portable pre-
packed IDE
 Debugger
software
 Project
configuration
 Create/Import
 Compile/Build
 Download
 Debug
 Run
 GPIO, I2C,
PWM
 LED, LCD,
buttons,
ADC/DAC
 Various
sensors
 6LoWPAN
 UDP
 RSSI
 Sensing &
control
 Sniffer
 Wireshark
 End-to-End
architecture
 Cloud server
& database
 Virtual
server
 Applications
Development
environment
Embedded
Programming
I/O, Sensors,
Devices
Communications
End-to-end
Applications

17. 17
Demos
3
2
1
Sensing and monitoring
(light, humidity, temperature, strain gage)
Remote control (motor, robot)
E-Health
Demo of typical applications
Monitoring and control
via cloud server