LPWAN platform.docx

LPWAN platform.docx

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LPWANplatform

LPWANplatform

NWave’sLPWANplatformfortheIoTcombineshightransmissionrangesofupto10kminurbanenvironmentswithlowpowerconsumption,allowingdevicestooperatewithoutmaintenanceorbatterychangeformanyyears.Weprovideafullplatformincludingsensorsanddevicesforparking,agricultureandmetering,radiomodulesforintegrationinto3rdpartydevices,universalmodems,basestationreceivers,andadvancedservicesinthecloud.

Contact

11BBullerRoad

NW105BSLondon

UnitedKingdom

Telephone+447920225706

IBMLong-RangeSignalingandControl（LRSC）1

SX1272/76radiodriversplusPing-PongfirmwareandLoRaMACnodefirmwareimplementation2

1.Introduction2

2.Systemschematicanddefinitions2

3.Acknowledgements2

4.Dependencies3

5.Usage4

6.Changelog5

LoRaWANHighcapacityLPWAN11

LoRaWAN1.015

这些物联网网络是慢辩解18

IBMLong-RangeSignalingandControl（LRSC）

Drivingtherevolutionofonlinedatatoanextlevel,moreandmoredeviceswillbeInternet-connected.Forexample,accordingtoForrester,morethan22billiondeviceswillbeconnectedby2020.Giventhatthisnumberfaroutstripsmobile（GSM）subscriptionestimationsfor3Gor4Gnetworks,thereisonekeyquestiontobeanswered:

Howcanthisbemadepossibleinasustainableandscalablemanner,e.g.,withoutdeploying2–3timesmoreGSMbasestationsorroutingbillionsofnewmachine-to-machine（M2M）interactionsoverprivateWLANhotspots?

Oneanswertothisquestionisbyusingalong-range,low-data-ratecommunicationsinfrastructurethatneedsfewerbasestationstoservemoresimpledeviceslikeonlinesmokedetectors,temperaturesensorsorsmartelectricalheatingcontrollers.

SeveralsuchradiotechnologiesexistandourteamhascreatedthenecessaryITinfrastructuretorenderonesuchradiotechnologytobeeasytodeploy.

SX1272/76radiodriversplusPing-PongfirmwareandLoRaMACnodefirmwareimplementation

1.Introduction

TheaimofthisprojectistoshowanexampleoftheLoRaMacendpointfirmwareimplementation.

REMARK1:

Nextversionoftheprojectwillincludebigchanges.

ThisisthelastversionbasedontheSemtechLoRaMacimplementation.ThenextversionwillbebasedontheIBM'LoRaWANinC'implementation.

TheIBM'LoRaWANinC'implementationaddsthesupportoftheClassAendpointfullyimplementedandClassBendpoints.

ThebiggestchangeresidesontheMAClayerAPIwhichiscompletelydifferent.

REMARK2:

ThisisaClassAendpoint.

REMARK3:

ImplementsversionR3.0ofLoRaMacspecification.

BydefaulttheLORAMAC_R3compileroptionisenabled.DisablingthisoptionwillenableLoRaMacspecificationR2.2.1

2.Systemschematicanddefinitions

TheavailablesupportedhardwareplatformsschematicsandLoRaMacspecificationcanbefoundintheDocdirectory.

3.Acknowledgements

Thembed（https:

//mbed.org/）projectwasusedatthebeginningassourceofinspiration.

ThisprogramusestheAESalgorithmimplementation（http:

//www.gladman.me.uk/）byBrianGladman.

ThisprogramusestheCMACalgorithmimplementation（http:

//www.cse.chalmers.se/research/group/dcs/masters/contikisec/）byLanderCasado,PhilippasTsigas.

4.Dependencies

Thisprogramdependsonspecifichardwareplatforms.Currentlythesupportedplatformsare:

-Bleeper-72

MCU:

STM32L151RD-384KFLASH,48KRAM,Timers,SPI,I2C,

USART,

USB2.0full-speeddevice/host/OTGcontroller,

DAC,ADC,DMA

RADIO:

SX1272

ANTENNA:

Connectorforexternalantenna

BUTTONS:

1Reset,16positionencoder

LEDS:

3

SENSORS:

Temperature

GPS:

PossiblethroughpinheaderGPSmoduleconnection

SDCARD:

Yes

EXTENSIONHEADER:

Yes,12pins

REMARK:

None.

-Bleeper-76

MCU:

STM32L151RD-384KFLASH,48KRAM,Timers,SPI,I2C,

USART,

USB2.0full-speeddevice/host/OTGcontroller,

DAC,ADC,DMA

RADIO:

SX1276

ANTENNA:

Connectorforexternalantennas（LF+HF）

BUTTONS:

1Reset,16positionencoder

LEDS:

3

SENSORS:

Temperature

GPS:

PossiblethroughpinheaderGPSmoduleconnection

SDCARD:

No

EXTENSIONHEADER:

Yes,12pins

REMARK:

None.

-LoRaMote

MCU:

STM32L151CB-128KFLASH,10KRAM,Timers,SPI,I2C,

USART,

USB2.0full-speeddevice/host/OTGcontroller,

DAC,ADC,DMA

RADIO:

SX1272

ANTENNA:

Printedcircuitantenna

BUTTONS:

No

LEDS:

3

SENSORS:

Proximity,Magnetic,3axisAccelerometer,Pressure,

Temperature

GPS:

Yes,UP501module

SDCARD:

No

EXTENSIONHEADER:

Yes,20pins

REMARK:

TheMCUandRadioareonanIMSTiM880Amodule

-SensorNode

MCU:

STM32L151C8-64KFLASH,10KRAM,Timers,SPI,I2C,

USART,

USB2.0full-speeddevice/host/OTGcontroller,

DAC,ADC,DMA

RADIO:

SX1276

ANTENNA:

Printedcircuitantenna

BUTTONS:

PowerON/OFF,Generalpurposebutton

LEDS:

3

SENSORS:

Proximity,Magnetic,3axisAccelerometer,Pressure,

Temperature

GPS:

Yes,SIM39EAmodule

SDCARD:

No

EXTENSIONNo

REMARK:

TheMCUandRadioareonanNYMTEKCherry-LCCmodule

-SK-iM880A（IMSTstarterkit）

MCU:

STM32L151CB-128KFLASH,10KRAM,Timers,SPI,I2C,

USART,

USB2.0full-speeddevice/host/OTGcontroller,

DAC,ADC,DMA

RADIO:

SX1272

ANTENNA:

Connectorforexternalantenna

BUTTONS:

1Reset,3buttons+2DIP-Switch

LEDS:

3

SENSORS:

Potentiometer

GPS:

PossiblethroughpinheaderGPSmoduleconnection

SDCARD:

No

EXTENSIONHEADER:

Yes,allIMSTiM880Amodulepins

REMARK:

None

5.Usage

ProjectsforCooCox-CoIDE（partial）,Ride7andKeilIntegratedDevelopmentEnvironmentsareavailable.

Oneprojectisavailableperapplicationandforeachhardwareplatformineachdevelopmentenvironment.Differenttargets/configurationshavebeencreatedinthedifferentprojectsinordertoselectdifferentoptionssuchastheusageornotofabootloaderandtheradiofrequencybandtobeused.

6.Changelog

2015-01-30,v3.1

∙General

i.StartedtoaddsupportforCooCoxCoIDEIntegratedDevelopmentEnvironment.CurrentlyonlyLoRaMoteandSensorNodeplatformprojectsareavailable.

ii.UpdatedGCCcompilerlinkerscripts.

iii.AddedthesupportofdifferenttoolchainsfortheHardFault_Handlerfunction.

iv.CorrectedRadiodriversI&QsignalsinversiontobepossibleinRxandinTx.Addedsomemissingradiostatemachineinitialization.

v.ChangedtheRSSIvaluestypefromint8_ttoint16_t.WecanhaveRSSIvaluesbelow-128dBm.

vi.CorrectedSNRcomputationonRxDoneinterrupt.

vii.UpdatedradioAPItosupportFHSSandCADhandling.

viii.CorrectedinSetRxConfigfunctiontheFSKmodempreambleregistername.

ix.AddedaninvalidbandwidthtotheBandwidthstableinordertoavoidanerrorwhenselecting250kHzbandwidthwhenusingFSKmodem.

x.CorrectedRTCalarmsetupwhichcouldbesettoaninvaliddate.

xi.Addedanothertimerinorderincrementthetickcounterwithoutblockingthenormaltimercount.

xii.Addedthepossibilitytoswitchbetweenlowpowertimersandnormaltimersonthefly.

xiii.I2Cdrivercorrectedthe2bytesinternaladdressmanagement.Correctedbufferreadfunctionwhenmorethat1bytewastoberead.AddedafunctiontowaitfortheI2CbustobecomeIDLE.

xiv.AddedanI2CEEPROMdriver.

xv.CorrectedandimprovedUSBVirtualCOMPortmanagementfiles.CorrectedtheUSBCDCandUSBUARTdrivers.

xvi.Addedthepossibilitytoanalyzeahardfaultinterrupt.

∙LoRaMac

xvii.CorrectedRxWindow2Dataratemanagement.

xviii.SrvAckRequestedvariablewasneverreset.

xix.CorrectedtstIndoorapplicationsforLoRaMacR3.0support.

xx.LoRaMacaddedthepossibilitytoconfigurealmostalltheMACparameters.

xxi.CorrectedtheLoRaMacSetNextChannelfunction.

xxii.Correctedtheport0MACcommanddecoding.

xxiii.Changedallstructuresdeclarationstobepacked.

xxiv.CorrectedtheAcknowledgementretriesmanagementwhenonly1trialisneeded.Beforethedevicewasissuingatleast2trials.

xxv.Correctedservermacnewchannelreqanswer.

xxvi.AddedthefunctionstoreadtheUpandDownLinksequencecounters.

xxvii.CorrectedSRV_MAC_RX2_SETUP_REQfrequencyhandling.Addeda100multiplication.

xxviii.CorrectedSRV_MAC_NEW_CHANNEL_REQ.RemovedtheDutyCycleparameterdecoding.

xxix.Automaticallyactivatethechannelonceitiscreated.

xxx.CorrectedNbRepTimeoutTimerinitialvalue.RxWindow2DelayalreadycontainsRxWindow1Delayinit.

2014-07-18,v3.0

∙General

i.AddedtoRadioAPIthepossibilitytoselectthemodem.

ii.CorrectedRSSIreadingformulasaswellaschangedtheRSSIandSNRvaluesfromdoubletoint8_ttype.

iii.ChangedradiocallbackseventstotimeoutwhenitisatimeouteventanderrorwhenitisaCRCerror.

iv.RadioAPIupdated.

v.Updatedping-pongapplications.

vi.Updatedtx-cwapplications.

vii.UpdatedLoRaMacapplicationsinordertohandleLoRaMacreturnedfunctionscallsstatus.

viii.UpdatedLoRaMacapplicationstotoggleLED2eachtimethereisanapplicationpayloaddownlink.

ix.UpdatedtstIndoorapplicationtohandlecorrectlymorethan6channels.

x.ChangedtheMPL3115altitudevariablefromunsignedtosignedvalue.

xi.Replacedtheusageofpow（2,n）bydefiningPOW2functions.Saves~2KBytesofcode.

xii.CorrectedanissuepotentiallyarrivingwhenLOW_POWER_MODE_ENABLEwasn'tdefined.AtimerinterruptcouldbegeneratedwhiletheTimerListcouldalreadybeemptied.

∙LoRaMac

xiii.ImplementedLoRaMacspecificationR3.0changes.

xiv.MACcommandsimplemented

▪LinkCheckReqYES

▪LinkCheckAnsYES

▪LinkADRReqYES

▪LinkADRAnsYES

▪DutyCycleReqYES

▪DutyCycleAnsYES

▪Rx2SetupReqYES

▪Rx2SetupAnsYES

▪DevStatusReqYES

▪DevStatusAnsYES

▪JoinReqYES

▪JoinAcceptYES

▪NewChannelReqYES

▪NewChannelAnsYES

xv.Featuresimplemented

▪Possibilitytoshut-downthedeviceYES

Possiblebyis