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The Things Network: Basic presentation

The Things Network: Basic presentation

Gonzalo Casas

April 25, 2017
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  1. THE THINGS NETWORK
    Switzerland community
    [email protected]
    @gnz

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  2. THE THINGS NETWORK
    A global community, building open source
    software and hardware to operate a
    crowd-sourced IoT network.

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  3. IN SWITZERLAND

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  4. WHAT IS LORAWAN?

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  5. LORAWAN
    • LoRa (Long Range): Radio modulation technique
    • LoRaWAN: MAC protocol for Wide Area Networks (OSI Layer 2 and 3)
    sensors
    nodes
    gateways backend
    application
    backend
    LoRa ip ip

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  6. LORAWAN
    3 * 10
    10 km range
    10 USD/node
    10 years battery life

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  7. LONG RANGE
    2km - 5km in urban setting
    40km+ in rural setting
    © ttnmapper.org , Open Street Map

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  8. INSANELY
    LONG RANGE
    (under extreme conditions)
    201 km ground-to-ground
    by Andreas Spiess, TTN Basel
    http://www.sensorsiot.org/
    © ttnmapper.org

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  9. INSANELY
    LONG RANGE
    (under extreme conditions)
    333 km air-to-ground (helium balloon)
    by @telkamp (mapping @jpmeijers)
    © ttnmapper.org

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  10. LOW COST
    Node/transceiver: CHF 8.5
    Gateway: ~CHF 250 (indoor)
    Open source stack + ISM bands
    Low CAPEX, almost negligible OPEX
    Photos by @gnz, CC-BY-SA

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  11. OPEN SOURCE BACKEND

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  12. UNLICENSED SPECTRUM
    Anyone can deploy a LoRaWAN network!

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  13. LOW POWER
    Class A Class B Class C
    Always send,
    receive after send.
    Up to 10 years.
    Deep sleep: ~10 μA
    TX ~40 mA
    RX ~14 mA
    Time-synchronized
    receive windows.
    Always-on receive
    mode.
    Not supported
    Support not ready,
    but planned

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  14. LIMITATIONS
    Bandwidth
    Payload size
    Regulatory limits
    0.3 bps to 50 kbps
    51 bytes (DR0)

    222 bytes (DR4)
    Fair usage policy
    1% Duty Cycle
    30 seconds/day airtime

    10 downlinks/day

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  15. ARCHITECTURE

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  16. nodes
    gateways

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  17. END-TO-END SECURITY
    Network Session Key: Message Integrity
    Application Session Key: Join, Encryption and Decryption
    Devices Gateways Network Server Application

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  18. LINKS
    https://ttn-ch.herokuapp.com/
    https://opennetworkinfrastructure.org/
    https://www.thethingsnetwork.org/country/switzerland/

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