Shenzhen Rakwireless Technology RAK7248 WisGate Raspberry Pi Gateway Incwadi Yomsebenzisi

I-RAK7248 WisGate sisixhobo esiqukethe i-Raspberry Pi 4 Model B, i-RAK2287 equka imodyuli ye-GPS kunye ne-Heat Sink yokusebenza kakuhle kunye nokulawula ukutshatyalaliswa kokushisa kwe-thermal. Kwaye indlu yayo yakhiwe nge-aluminiyam casing.
Ukwakhiwa kwe-RAK2287 isebenzisa i-chip ye-SX1302 esuka kwi-Semtech eyakhelwe-ngaphakathi i-LoRa concentrator IP core yinjini enamandla yokucwangcisa umqondiso wedijithali. Iyakwazi ukufumana iipakethi ze-8 ze-LoRa ngaxeshanye zithunyelwe ngeendlela ezahlukeneyo zokusasaza kumajelo ahlukeneyo kwaye zifumaneka kwiintlobo ezininzi ezahlukeneyo ukuze zisetyenziswe kwiibhendi ezisemgangathweni zangaphakathi. Esi sikhundla sikhethekileyo sivumela ukuphumeza i-advan yoyilo lwenethiwekhi entshatageous phezu kwezinye iinkqubo zoluhlu olufutshane. Ilandela iinkcukacha zeRaspberry Pi kwaye kulula ukuyinyuka ngeRaspberry Pi kunye nemodyuli yeRAK2287.
I-WisGate ifanelekile kwiprototyping, i-proof-of-concept demonstration okanye kuvavanyo. Ibandakanya ukulungele ukusebenzisa i-LoRaWan Gateway OS enokuqhagamshelwa kwiseva ye-LoRaWan. Ikwangumphuhlisi onobubele kwaye kulula nakubasebenzisi abangena-so-techy ukuseta inkqubo yeLoRaWan. Kufuneka ibe lelona xabiso lilungileyo kunye nomsebenzi woqhagamshelo ukujongana neentlobo ngeentlobo zezicelo ezifana neSmart Grid, iFama eyiNgqondo kunye nezinye izicelo zeshishini le-IoT.

1.2. Iimpawu eziphambili

Ukubala ngeRaspberry Pi4 Model B(Linux).
I-64-bit SX1302 isiseko sebhendi iprosesa, 500 kHz ulwamkelo lweLoRa nge8
x 8 iziteshi ze-LoRa® i-packet detectors, i-8 x SF5-SF12 LoRa® i-demodulators, i-8 x SF5-SF10 i-LoRa® i-demodulators.
Yakhelwe kwi-GPSModule.
ISinki yoBubushushu eyakhelwe-ngaphakathi yokulawula ukutshatyalaliswa kobushushu bobushushu.
Ixhasa unikezelo lwamandla lwe-5V/3A.
Ubuzaza be-RX ukuya kuthi ga ku -139dBm@SF12, BW500KHz.
I-LoRa frequency ixhasa ibhendi yefrikhwensi yelayisenisi-simahla (EU433, CN470, EU868, US915, AS923, AU915, KR920, IN865 kunye neAS920).

Izindlu ezinekhava ephezulu, umzimba, isigqubuthelo esisezantsi esinebhodi yomama ekhutshiweyo.
Ibandakanya i-Pi esele ilungile 'ID EEPROM', ukuseta i-GPIO kunye nomthi wesixhobo unokuqwalaselwa ngokuzenzekelayo kulwazi lomthengisi. Ixhasa ikhowudi yomthombo ovulekileyo ngokupheleleyo eqhagamshelwe kwi-LoRaWANserver.

1.3. Imixholo yePakethe

2. WisGate RAK7248
2.1. Ngaphezuluview

Iqokobhe le-RAK7248 lenziwe ngentsimbi
Ubungakanani bangaphandle be-WisGate yi-92 x 68.3 x 57.2 mm njengoko kuboniswe ngezantsi.

2.2. Ujongano

Umzobo 3 | Imilinganiselo yangaphandle

Umzobo 4 | Ujongano

2.3. Ulwakhiwo lweNkqubo

Lo mfanekiso ulandelayo ubonisa ingqiqo esisiseko yenkqubo ye-LoRaWAN. I-RAK7248 WisGate sisisombululo se-hardware esisembindini salo lonke unxibelelwano lwerediyo olusekwe kwi-LoRa. Ifumana kwaye ithumele imiyalezo yerediyo. Uqhubekeko lwemiyalezo kanomathotholo kunye nemisebenzi enxulumene neprotocol yenziwa yinkqubo yomamkeli elungisiweyo (iRaspberry Pi). Imiyalezo yerediyo efunyenweyo nesetyenziweyo ithunyelwa kwiseva ye-LoRaWAN. Ulwahlulo olubambekayo lwemisebenzi enxulumene neprothokholi lungaphandle kwemida yolu xwebhu.

Umzobo 5 | Ulwakhiwo lweNkqubo yeWisGate

2.4. RaspberryPi

Iprosesa: Broadcom BCM2711, quad-core Cortex-A72 (ARM v8) 64-bit SoC @ 1.5GHz
Imemori: 2GB LPDDR4
I/O Port:Gigabit Ethernet;2 × USB 3.0 izibuko;2 × USB 2.0 izibuko

Uqhagamshelwano:2.4 GHz kunye 5.0 GHz IEEE 802.11b/g/n/ac wirelessLAN, Bluetooth, BLE

2.5.Izanzi zokuSebenza zeLoRa

I-WisGate ixhasa zonke iibhendi zamaza e-LoRaWAN njengalapha ngezantsi. Yiyiphi elula ukuyiqwalasela ngelixa ukwakhiwa kwe-firmware kwikhowudi yomthombo.

Ummandla	Ukuphindaphinda
IYurophu	EU433,EU868
eTshayina	CN470
UMntla waseMelika	US915
EAsia	AS923,AS920
Ostreliya	AU915
eKorea	KR920
Indiya	IN865

Uluhlu 1 | LoRa Operating Frequencies

2.6.Ulwakhiwo lwezixhobo zokusebenza

I-RAK2003 Pi HAT yibhodi ethwala i-RAK2287 LoRa Concentrator elandela iPi. 7

I-HAT esemgangathweni, kwaye inokuxhonywa kwibhodi ye-Pi ene-40-pin isinxibelelanisi. RAK2003 kunye

I-RAK2287 idityaniswe ngojongano lwe-PCI-E.

2.7.Iimfuno zamandla

I-WisGate isebenza kwi-5V/3A. Inokuthi inikwe amandla yi-USB encinci ene-5V.

Ipharamitha Min. Ubukhulu obuqhelekileyo.

LoRa Txmode	-	-	950mA
Imo yokulinda	-	550mA	-
Eyona ndlela itshileyo			930mA

Uluhlu 2| Ukutya umbane

Qaphela: Imo ye-LoRa Tx: Imodyuli ye-LoRa isebenza kugqithiso oluphezulu amandla karhulumente. Tshisa imo yovavanyo: Raspberry Pi CPU kunye nememori ziyasebenza umthamo opheleleyo

2.8.IiMfuno zokusiNgqongileyo

Itheyibhile engezantsi idwelisa ukusebenza kunye neemfuno zobushushu bokugcina

Ipharamitha Min. Ubukhulu obuqhelekileyo.

Uluhlu lobushushu bokusebenza	-20 ºC	+25 ºC	+65 ºC
Uluhlu lobushushu olwandisiweyo	-40 ˚C		+85 ˚C
Uluhlu lobushushu boGcino	-40 ˚C		+85 ˚C

Uluhlu 3| IiMfuno zokusiNgqongileyo

2.9.Iimpawu ze-LoRa RF

2.9.1 Iimpawu zeRF yeTransmitter

I-RAK2287 inomsebenzi obalaseleyo wokuhambisa. Kucetyiswa kakhulu ukuba kusetyenziswe ulungelelwaniso olulungiselelwe ulungelelwaniso lwenqanaba lamandla, oluyinxalenye ye-HAL. Oku iziphumo kumlinganiselo wemveliso yeRF inqanaba kunye nokusetyenziswa kwangoku.

Uluhlu lokuphindaphinda

Dlulisa Amandla

Ukumodareyitha

Ubuchwephesha

923.3-927.5 MHz

I-13.39dBm

LoRa / FSK

2.9.2 Iimpawu zeRF yomamkeli

Kucetyiswa kakhulu, ukusebenzisa amaxabiso okulinganisa e-RSSI aphuculweyo, ayinxalenye ye-HAL v3.1. Kuzo zombini, iRadio 1 kunye ne-2, i-RSSI-Offset kufuneka isete -169.0. Le theyibhile ilandelayo inika ngokwesiqhelo inqanaba lovakalelo lwe-RAK2287.

Ububanzi boMqondiso / [KHz]	Ukusasaza Factor	Uvakalelo / [dBm]
500	12	-134
500	7	-120

Uluhlu 5 | Iimpawu zeRX RF

3. I-eriyali

3.1.I-Antenna ye-LoRa

3.1.1 Ngaphezuluview

I-Antenna ye-LoRa ene-RP-SMA isiqhagamshelo sabasetyhini eboniswe njengamanani alandelayo.

Umzobo 6 | LoRa Antenna Ngaphezuluview

3.1.2Ubungakanani be-antenna

Ubungakanani bomatshini be-eriyali buboniswe ngezantsi:

Umzobo 7 | LoRa Antenna Dimension

3.1.3I-Antenna Parameter

3.2.I-Antenna yeGPS

3.2.1 Ngaphezuluview

I-eriyali yeGPS yeWisGate iboniswe ngezantsi.

3.2.2Ubungakanani be-antenna yeGPS

3.2.3IiMfuno zokusiNgqongileyo zeGPS

Iimfuno ze-eriyali zokusingqongileyo zidweliswe kwitheyibhile engezantsi:

Iimeko	Ubushushu	Ukufuma
Ukusebenza	-35 ºC ~ +80 ºC	0% ~ 95%
Ugcino	-40 ºC ~ +85 ºC	0% ~ 95%

Uluhlu 7| IiMfuno zokusiNgqongileyo ze-GPS

3.2.4GPS Antenna Parameter

Iimpawu ze-antenna zidweliswe kwitheyibhile engezantsi:

Iimpawu ze-PET

Uluhlu lokuFumana iFrequency	1575.42±1.1	±2.5
Ukuphindaphinda kombindi (MHz) w/ 30mm2 inqwelomoya ye-GND	1575.42	±3.0
Ububanzi (MHz) (Buyisela Ilahleko ≤ -10dB)	≥10	±0.5
I-VSWR (kwiziko lokuphindaphinda)	≤2.0	±0.5
Ukuzuza (Zenith) (I-dBi Typ.) w/ 70mm2 GND Plane	4.5	±0.5
I-Axial Ratio (dB) w/ 70mm2 GND Plane	3.0	±0.2
Ubumbano	Isetyhula yesandla sasekunene	-
Ukuphazamiseka (Ω)	50	-
I-Frequency Temperature Coefficient (ppm/ºC)	0±10	-

Uluhlu 8| GPS Antenna Parameter

AmpIiNkcazo ze-lifier zidweliswe kwitheyibhile engezantsi:

Iinkcazo zezinto

Uluhlu lokuphindaphinda	1575.42 MHz
Inzuzo	27 dB
VSWR	≤ 2.0 V
I-Coefficient yengxolo	I-2.0 dBm
I-DC Voltage	I-3 ~ 5 V
DC yangoku	5 ± 2 mA

Uluhlu 9| AmpIinkcukacha ze-lifier

Iinkcukacha zovavanyo lokusingqongileyo zidweliswe ngezantsi:

Into	ITemp yesiqhelo.	Isantya esiphakamileyo.1	Ubushushu obuphantsi.2
Ampukuzuza	27dB ± 2.0	27dB ± 2.0	27dB ± 2.0
VSWR	≤2.0	≤2.0	≤2.0
I-Coefficient yengxolo	≤2.0	≤2.0	≤2.0

1. Uvavanyo lobushushu obuphezulu: isepha kwiqondo lobushushu (85º C) kunye nokufuma (95%) kwigumbi le-24-iyure kwaye ubuyele kwiqondo lokushisa eliqhelekileyo (ubuncinci kwi-1-yure) ngaphandle kokutshintsha kobume obubonakalayo.

2. Uvavanyo lobushushu obuphantsi: isepha kwiqondo lobushushu (-40º C) igumbi iiyure ezingama-24 kwaye ubuyele

iqondo lobushushu eliqhelekileyo (ubuncinci ngeyure enye) ngaphandle kotshintsho olubonakalayo.

Uluhlu 10| Uvavanyo lokuSebenza kokusiNgqongileyo

4. Isilumkiso seFCC

Isilumkiso seFCC:

Naluphi na utshintsho okanye uhlengahlengiso olungavunywanga ngokucacileyo liqela elinoxanduva lwalo ukuthotyelwa kwemithetho kunokuphelisa igunya lomsebenzisi lokusebenzisa isixhobo.

Esi sixhobo sithobela inxalenye ye-15 yeMithetho yeFCC. Ukusebenza kuxhomekeke kwezi meko zimbini zilandelayo: (1) Esi sixhobo asinakubanga luphazamiseko luyingozi, kwaye (2) esi sixhobo kufuneka samkele naluphi na uphazamiseko olufunyenweyo, kubandakanywa uphazamiseko olunokubangela usetyenziso olungafunekiyo.

INQAKU ELIBALULEKILEYO:

Qaphela: Esi sixhobo sivavanyiwe kwaye safunyanwa sithobela imida yeKlasi B isixhobo sedijithali, ngokungqinelana nenxalenye ye-15 yeMithetho yeFCC. Le mida yenzelwe ukubonelela ngokhuseleko olufanelekileyo ekuphazamisekeni okuyingozi kwindawo yokuhlala. Oku Isixhobo sivelisa, sisebenzise kwaye sinokusasaza amandla erediyo kwaye, ukuba ayifakelwanga kwaye isetyenziswe ngokuhambelana nemiyalelo, inokubangela uphazamiseko oluyingozi kwirediyo. unxibelelwano. Nangona kunjalo, akukho siqinisekiso sokuba uphazamiseko aluyi kwenzeka kwi-a ufakelo oluthile. Ukuba esi sixhobo sibangela uphazamiseko olubi kwiradiyo okanye ulwamkelo lukamabonakude, olunokumiselwa ngokucima isixhobo kunye nokucima isixhobo, umsebenzisi bakhuthazwa ukuba bazame ukulungisa uphazamiseko ngenyathelo elinye okanye ngaphezulu kwezi zilandelayo:

Jongisa kwakhona okanye uhambise i-eriyali efumanayo.
Yandisa ukwahlukana phakathi kwesixhobo kunye nomamkeli.
Qhagamshela izixhobo kwindawo yokuphuma kwisekethe eyahlukileyo kuleyo apho umamkeli aqhagamshelwe khona.
Dibana nomthengisi okanye igcisa likanomathotholo/kumabonakude ukuze ufumane uncedo.

INkcazelo yokuVela kwiMitha yeFCC:

Esi sixhobo sithobela imiqathango yeFCC yokuvezwa ngemitha emiselwe indawo engalawulekiyo .Esi sixhobo kufuneka sifakelwe kwaye sisebenze umgama ophantsi wama-20cm phakathi kweradiyetha& nomzimba wakho.

5. ISEDC Isilumkiso

ISEDC Isilumkiso:

Esi sixhobo sithobela i-Innovation, iNzululwazi, kunye noPhuhliso loQoqosho lwaseKhanada i(s). Umsebenzi uxhomekeke kwezi meko zimbini zilandelayo:

I-RAK7248 esi sixhobo asinakubanga uphazamiseko, kwaye (2) esi sixhobo kufuneka samkele naluphi na uphazamiseko, kuquka nokuphazamiseka okunokubangela ukusebenza okungafunwayo kwesixhobo.

Isixhobo siyahambelana nezikhokelo zokuvezwa kweRF, abasebenzisi banokufumana iKhanada ulwazi malunga nokuvezwa kweRF kunye nokuthotyelwa. Umgama omncinci ukusuka emzimbeni ukusebenzisa isixhobo yi-20cm.

6. Imbali yohlaziyo

Uhlaziyo Inkcazo Umhla

1.0 Ukukhutshwa kokuqala ngo-Agasti13, 2020 1.1 Yongeza ulwazi lweFCC/ISEDC NgoSeptemba 10, 2020 1.2 Tshintsha igama leproduct NgoSeptemba 14, 2020 1.3 Yongeza iRaspberry Pi Hardwareinformation NgoSeptemba 15, 2020

7. IsiShwankathelo soXwebhu

Ilungiselelwe ngokuHlolwa ngu: Ivunywe ngu:

Malunga neRAKwireless: I-RAKwireless nguvulindlela ekuboneleleni ngezinto ezintsha nezihlukeneyo zonxibelelwano lweSelula kunye ne-LoRaWAN izisombululo zazo zombini izixhobo ze-Edge kunye ne-Gateway IoT. Sikholelwa ukuba kulula ukuyisebenzisa kwaye uyilo lwemodyuli sinokulikhawulezisa ixesha lokuthengisa iiSicelo ezahlukeneyo ze-IoT ukuze khulisa unikezelo lwenkqubo kuzo zombini iisetingi zoMphuhlisi kunye nezoRhwebo.

Amaxwebhu / Izibonelelo

Shenzhen Rakwireless Technology RAK7248 WisGate Raspberry Pi Gateway [pdf] Incwadi yokusebenzisa
RAK7248, 2AF6B-RAK7248, 2AF6BRAK7248, RAK7248 WisGate Raspberry Pi Gateway, WisGate Raspberry Pi Gateway

Iimbekiselo

Incwadi yokusebenzisa

WisGate Raspberry Pi Gateway

1. Ngaphezuluview
1.1. Intshayelelo