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The Things Network: Basic presentation
Gonzalo Casas
April 25, 2017
Technology
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540
The Things Network: Basic presentation
Gonzalo Casas
April 25, 2017
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Transcript
THE THINGS NETWORK Switzerland community gonzalocasas@gmail.com @gnz
THE THINGS NETWORK A global community, building open source software
and hardware to operate a crowd-sourced IoT network.
IN SWITZERLAND
WHAT IS LORAWAN?
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
LORAWAN 3 * 10 10 km range 10 USD/node 10
years battery life
LONG RANGE 2km - 5km in urban setting 40km+ in
rural setting © ttnmapper.org , Open Street Map
INSANELY LONG RANGE (under extreme conditions) 201 km ground-to-ground by
Andreas Spiess, TTN Basel http://www.sensorsiot.org/ © ttnmapper.org
INSANELY LONG RANGE (under extreme conditions) 333 km air-to-ground (helium
balloon) by @telkamp (mapping @jpmeijers) © ttnmapper.org
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
OPEN SOURCE BACKEND
UNLICENSED SPECTRUM Anyone can deploy a LoRaWAN network!
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
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
ARCHITECTURE
nodes gateways
END-TO-END SECURITY Network Session Key: Message Integrity Application Session Key:
Join, Encryption and Decryption Devices Gateways Network Server Application
LINKS https://ttn-ch.herokuapp.com/ https://opennetworkinfrastructure.org/ https://www.thethingsnetwork.org/country/switzerland/