Successfully reported this slideshow.
We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime.
Connectivity
Jingwen Zhu

2019 Spring

Week 6
Internet of Things
Internet of Things (IoT)
• Key elements:

• Embedded Devices - Things

• An internet Service - Internet

• A gateway devic...
Connected Home
• Google Home/Amazon Echo

• Thermostats - Nest

• Lighting - Philips Hue
Connected Cars
• Tesla

• Car2go
Urban System
• Citi Bike

• Jump Bikes
Medical / Wellness Devices
• Bathroom scales - Withings

• Blood pressure monitors - GlowCaps
Connected Wearables
AirPods
AirPods Block Schematic
Speaker
Microphones
Voice
Acceleromet
er
Micro-
controller
BluetoothMobile Phone
Optical
Sensors
M...
Apple Watch Series 4 and Series 3 with cellular
PixMob LED Wristbands
Klik
How to connect?
Internet Thing
Local and outside networks Microcontroller + input + output
InternetLocal and outside networks
Architectures
• Dedicated gateway

• Smartphone as gateway

• Direct internet connection

• Device to device connections

...
Cellular Network
• Pros: 

• Direct access to internet, no gateway
needed

• Cons:

• High power consumption

• Example: A...
Wifi
• Pros:

• Stable connection after setup

• Cons:

• High power consumption

• Limited distance range

• Example: Ewle...
Bluetooth Classic
• Pros:

• Stable connection after paired

• Medium power consumption

• Cons:

• Limited distance range...
Bluetooth Low Energy
• Pros:

• No pairing needed

• Low energy consumption

• Cons:

• Specific app needed

• Example: Mis...
ZigBee
• Pros:

• Mesh network protocol 

• Cons:

• Not currently compatible mobile OS

• Example: Philips Hue Light

• N...
RFID / NFC
• Pros:

• No power supply needed (passive only)

• Small and thin

• Cons:

• Short distance range

• Limited ...
Networks
• Cellular

• Wifi 160’

• Bluetooth Classic 328’

• Bluetooth Low Energy (BLE) 328’/1,312’

• ZigBee and ZigWave ...
How to choose
• Distance

• Power consumption

• Quantity of devices

• Gateway or not
Potentials & Limitations
• Wearables vs Things vs Screens

• Smart?

• Stability of network

• Security & privacy



Upcoming SlideShare
Loading in …5
×

Intro to wearables w6

18 views

Published on

Intro to wearables w6

Published in: Education
  • Be the first to comment

  • Be the first to like this

Intro to wearables w6

  1. 1. Connectivity Jingwen Zhu 2019 Spring Week 6
  2. 2. Internet of Things
  3. 3. Internet of Things (IoT) • Key elements: • Embedded Devices - Things • An internet Service - Internet • A gateway device • Apps
  4. 4. Connected Home • Google Home/Amazon Echo • Thermostats - Nest • Lighting - Philips Hue
  5. 5. Connected Cars • Tesla • Car2go
  6. 6. Urban System • Citi Bike • Jump Bikes
  7. 7. Medical / Wellness Devices • Bathroom scales - Withings • Blood pressure monitors - GlowCaps
  8. 8. Connected Wearables
  9. 9. AirPods
  10. 10. AirPods Block Schematic Speaker Microphones Voice Acceleromet er Micro- controller BluetoothMobile Phone Optical Sensors Motion Acceleromet er
  11. 11. Apple Watch Series 4 and Series 3 with cellular
  12. 12. PixMob LED Wristbands
  13. 13. Klik
  14. 14. How to connect?
  15. 15. Internet Thing Local and outside networks Microcontroller + input + output
  16. 16. InternetLocal and outside networks
  17. 17. Architectures • Dedicated gateway • Smartphone as gateway • Direct internet connection • Device to device connections • Service to service connections Smartphone as gatewayDedicated gateway
  18. 18. Cellular Network • Pros: • Direct access to internet, no gateway needed • Cons: • High power consumption • Example: Apple Watch • Network: Bluetooth & Cellular • Architecture: Direct internet connection
  19. 19. Wifi • Pros: • Stable connection after setup • Cons: • High power consumption • Limited distance range • Example: Ewlet smart sock • Network: Bluetooth LE & Wifi • Architecture: Dedicated gateway
  20. 20. Bluetooth Classic • Pros: • Stable connection after paired • Medium power consumption • Cons: • Limited distance range • Pairing needed every time of usage • Example: Ewlet smart sock • Network: Bluetooth Classic • Architecture: Smartphone as gateway
  21. 21. Bluetooth Low Energy • Pros: • No pairing needed • Low energy consumption • Cons: • Specific app needed • Example: Misfit Smart Wristband • Network: Bluetooth LE • Architecture: Smartphone as gateway
  22. 22. ZigBee • Pros: • Mesh network protocol  • Cons: • Not currently compatible mobile OS • Example: Philips Hue Light • Network: ZigBee + Ethernet • Architecture: Dedicated gateway
  23. 23. RFID / NFC • Pros: • No power supply needed (passive only) • Small and thin • Cons: • Short distance range • Limited function • Example: Disney MagicBand • Network: NFC • Architecture: N/A
  24. 24. Networks • Cellular • Wifi 160’ • Bluetooth Classic 328’ • Bluetooth Low Energy (BLE) 328’/1,312’ • ZigBee and ZigWave 328’ • RFID (Radio Frequency Identification) 3’ • NFC (Near Field Communication) 3’ • Other Proprietary Radio Frequencies

  25. 25. How to choose • Distance • Power consumption • Quantity of devices • Gateway or not
  26. 26. Potentials & Limitations • Wearables vs Things vs Screens • Smart? • Stability of network • Security & privacy
 


×