Internet of Things Topologies Flashcards

1
Q

Internet of Things Topologies

A
  • Wearable technology
    • Watches, health monitors, glasses
    • Track our location
    • Where is that data and how is it stored?
  • Home automation
    • Video doorbells
    • Internet-connected garage door openers
    • Heating and cooling
    • It knows when you are home (and when you aren’t)
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2
Q

Z-Wave

A
  • Home automation networking
    • Control lights, locks, garage doors, etc.

• Wireless mesh networking
• Nodes can hop through other nodes on the way to
the destination

  • Uses the ISM band
    • Industrial, Scientific, and Medical
    • 900 MHz frequencies in the US
    • No conflicts with 802.11
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3
Q

ANT / ANT+

A
  • Wireless sensor network protocol
    • 2.4 GHz ISM band (industrial, scientific, and medical)
    • An “Internet of Things” ultra-low-power protocol
    • Fitness devices, heart rate monitors, etc.
  • A separate wireless service
    • Not 802.11 or Bluetooth
  • Denial of service
    • Spectrum jamming
  • Optional encryption
    • And no method to maintain integrity
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4
Q

Bluetooth

A
  • High speed communication over short distances
    • PAN (Personal Area Network)

• Connects our mobile devices
• Smartphones, tethering, headsets and headphones,
health monitors, automobile and phone integration,
smartwatches, external speakers

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5
Q

Near field communication (NFC)

A
  • Two-way wireless communication
    • Builds on RFID, which is mostly one-way
  • Payment systems
    • Google wallet and MasterCard partnership
  • Bootstrap for other wireless
    • NFC helps with Bluetooth pairing
  • Access token, identity “card”
    • Short range with encryption support
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6
Q

IR (Infrared)

A

• Included on many smartphones, tablets, and
smartwatches
• Not really used for file transfers and printing

  • Control your entertainment center
    • Many IR options
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7
Q

RFID (Radio-frequency identification)

A
  • It’s everywhere
    • Access badges
    • Inventory/Assembly line tracking
    • Pet/Animal identification
    • Anything that needs to be tracked
  • Radar technology
    • Radio energy transmitted to the tag
    • RF powers the tag, ID is transmitted back
    • Bidirectional communication
    • Some tag formats can be active/powered
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8
Q

IEEE 802.11

A

• Wireless networking (802.11)
• Managed by the IEEE LAN/MAN Standards
Committee (IEEE 802)

  • Many updates over time
    • Check with IEEE for the latest
  • The Wi-Fi trademark
    • Wi-Fi Alliance handles interoperability testing
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