lora wan - connecting the internet of things
TRANSCRIPT
KentPlummer- VPNSolutionsManagedPrivateIPNetworksforBusiness
vpnsolutions.com.au
LoRa WANGartnerforecaststherewillbe25billion
connectedthingsgloballyby2020- morethan3xthenumberofpeopleonearthtoday.
GoldCoast
VPNSolutionsMPLS
PrivateIPNetwork
BrisbaneHeadOffice
IPSec VPN(Backuppaths)
DirectConnect
BGProuting
Internet
AvailabilityZone1ap-southeast-2a
Instances
AvailabilityZone2ap-southeast-2b
VGW
VPCsubnet
VPCsubnet
SydneyMelbourne Adelaide
NetworkInterconnectPOPEquinix Sydney
Instances
BrisbaneCo-lo
Primary
Backup
BGProuting
VPNSolutionsCarrierNeutralManagedNetworks
• >25billiondevicesby2020
• Bluetooth&Wifi notsuited<100m,highthroughput&powerconsumption
• 3G/4Gcellularnotwellsuited$hardware,$SIM’s/plans,highbatteryinefficiency,availablespectrum.Designedfor~100Mbpsandvoice.
• Endpointscostsneedtobelow• Mustbesmallforintegrationintoeverything• Conservewirelessspectrum– dutycyclepolicy• Conservativepower– runonabattery– ie mA• SupportreallylowbandwidthforBytesnotMBofdata• ~$0networkplans
Theproblem?
LoRa WAN
Upto5km
• Privatept-pt Serialwrite/read• Twowaycomms• 300bpsto300Kdatarate• 915MhzunlicensedISM(Industry,Scienceand
Medicine)radioband.• ~$30endpoints• $freecommunications– nomobileSIM• Lowpowerie 100mA• Batteryorsolarpowered
Raiselocalalarm,Triggerlocalevent,
LoglocaldataOrMQTTtoAWS
Pressbutton,Waterlevelhigh,Assetcondition
reporting.
Wifi InternetconnectedArduinoUno
+Dragino LoraShield(viaserialinternally)
LoRa Technology
• Sigfox similar 7yotechnology• IEEE802.15.4gdevelopedbytheLoRa alliance• 915MhzinAustraliaISMband
– Upstream – 64channels125kHzBWstartingat902.3MHz– Upstream – 8channels500kHzBWstartingat903.0MHz– Downstream – 8channels500kHzBWstartingat923.3
• AES128cryptoanduniquedevicekeys• Spread-spectrummodulation• Dutycyclepolicytoconservespectrum• Datarates300bpsto300Kbps• Distancesupto5kmor10km• HasaMacaddressschemeandretransmit/errorcorrectioncapabilitybuiltin.• Builtinovertheairactivation/subscriptiontoLoRa gw
LoRa NetworkDesign
RFtoIPbridge
LoRa EndNodes
Arduino”shields”thatinterfaceviaUART/serialtomicrocontroller
LoRa GatewaysAtransparentbridgerelayingmessagesbetweenend-nodesandacentralnetworkserverinthebackend.
TalksRFtoLoRa EndnodesTalksIPtoLoraServer- withLoRa MACpayloadfromEndNodetoServer
10kmpergatewayCost<$2000TheThingsNetwork coveredAmsterdamwithjust10gateways@$1,200eachRaspberryPigw for$200
LoRa Server
NodestalkdirectlytotheLoRa serverviaLoRaMAC.Thegatewayistransparent.
TherolesoftypicalLoRa Server:• Gatewaymonitoring&mgmt• Deduplicationofdata– ie manygw’s willseethesameTX• Billing• Securitymanagement• Datadistribution– ie interfacewithAWSordirectlywithappviawebsocket
Vendors:• TheThingsNetwork– cloudserveroronprem• Loriot - supportsdirectinterfacetoAWSIoT• Loraserver.io - OpenSource
Thenetworkowner?
Orthemobilecarriers– TatainIndiahave45millionpeoplecovered
CrowdsourcedviahomeLoRa gateways&Internet- thethingsnetwork.org
