WisGate Rasberi Pi Gateway

Manual mai amfani don
WisGate RAK7248
Shafin 1.3| Satumba 2020

   

www.RAKwireless.com
Ziyarci mu website don ƙarin daftarin aiki.
SHAFE 14

1. Sama daview
1.1. Gabatarwa

RAK7248 WisGate na'ura ce da ta ƙunshi Rasberi Pi 4 Model B, RAK2287 wanda ya haɗa da tsarin GPS da Heat Sink don ingantacciyar aiki da sarrafa watsawar zafi. Kuma an gina gidan ne tare da calo na aluminum.
Don ginawa a cikin RAK2287 yana amfani da guntu SX1302 daga Semtech wanda aka gina a ciki LoRa concentrator IP core shine injin sarrafa siginar dijital mai ƙarfi. Yana da ikon karɓar fakitin LoRa har 8 a lokaci guda da aka aika tare da dalilai masu yaduwa daban-daban akan tashoshi daban-daban kuma ana samun su a cikin bambance-bambancen mahara don haka ana iya amfani da shi don daidaitattun makada na tsaka-tsaki. Wannan ƙwarewa ta musamman tana ba da damar aiwatar da sabbin gine-ginen cibiyar sadarwa advantageous fiye da sauran gajerun tsarin tsarin. Yana bin ƙayyadaddun Rasberi Pi kuma yana da sauƙin hawa tare da Rasberi Pi da RAK2287 module.
WisGate ya dace don yin samfuri, nunin hujja ko don kimantawa. Ya haɗa da shirye don amfani da LoRaWan Gateway OS wanda za'a iya haɗa shi zuwa sabar LoRaWan. Hakanan yana da abokantaka kuma mai sauƙi har ma ga masu amfani da fasaha don saita tsarin LoRaWan. Dole ne ya zama mafi kyawun ƙima da aiki don haɗin kai don magance nau'ikan aikace-aikace kamar Smart Grid, Farm na Intelligent da sauran aikace-aikacen kasuwancin IoT

1.2. Babban fasali

• Kwamfuta tare da Rasberi Pi4 Model B(Linux).
• 64-bit SX1302 tushe band processor, 500 kHz LoRa liyafar tare da 8
  x 8 tashoshi LoRa® fakiti masu gano fakiti,8 x SF5-SF12 LoRa® demodulators,8 x SF5-SF10 LoRa® demodulators.
• Gina-cikin GPSModule.
• Gine-ginen Wutar Lantarki don sarrafa watsawar zafi mai zafi.
• Yana goyan bayan samar da wutar lantarki 5V/3A.
• Hankalin RX zuwa -139dBm@SF12, BW500KHz.
• Mitar LoRa tana goyan bayan rukunin mitar mitar kyauta ta duniya (EU433, CN470, EU868, US915, AS923, AU915, KR920, IN865 da AS920).
• Gidajen da ke da murfin sama, jiki, murfin ƙasa tare da riveted mother board sun tsaya a kashe.
• Ya haɗa da shirin 'ID EEPROM', saitin GPIO da bishiyar na'ura za'a iya daidaita su ta atomatik daga bayanan mai siyarwa. Yana goyan bayan cikakken buɗaɗɗen lambar tushe da aka haɗa zuwa uwar garken LoRaWAN.

1.3. Abubuwan Kunshin

2. WisGate RAK7248
2.1. Sama daview

Harsashi na RAK7248 an yi shi da ƙarfe
Girman waje na WisGate shine 92 x 68.3 x 57.2 mm kamar yadda aka nuna a ƙasa.

2.2. Interface

Hoto 3 | Girman Maɗaukaki

Hoto 4 | Hanyoyin sadarwa

2.3. Tsarin Tsarin

Hoto mai zuwa yana nuna ainihin manufar tsarin LoRaWAN. RAK7248 WisGate shine babban mafita na kayan masarufi don duk sadarwar rediyo na tushen LoRa. Yana karba da watsa saƙonnin rediyo. Ana yin sarrafa saƙon rediyo da ayyukan da suka danganci yarjejeniya ta hanyar shigar da tsarin runduna (Raspberry Pi). Ana aika saƙon rediyo da aka karɓa da sarrafa su zuwa uwar garken LoRaWAN. Ƙwararren yanki na ayyukan da ke da alaƙa yana waje da iyakokin wannan takaddar.

Hoto na 5 | Tsarin Tsarin WisGate

2.4. RasberiPi

• Mai sarrafawa: Broadcom BCM2711, Quad-core Cortex-A72 (ARM v8) 64-bit SoC @ 1.5GHz
• Ƙwaƙwalwar ajiya: 2GB LPDDR4
• I/O Port: Gigabit Ethernet; 2 × USB 3.0 tashar jiragen ruwa; 2 × USB 2.0 tashar jiragen ruwa
• Haɗin kai: 2.4 GHz da 5.0 GHz IEEE 802.11b/g/n/ac mara waya ta waya, Bluetooth, BLE

2.5.LoRa Mitar Aiki

WisGate yana goyan bayan duk madafan mitar LoRaWAN kamar ƙasa. Wanne yana da sauƙin daidaitawa yayin gina firmware daga lambar tushe.

Yanki	Yawanci
Turai	EU433,EU868
China	Farashin CN470
Arewacin Amurka	US915
Asiya	AS923, AS920
Ostiraliya	AU915
Koriya	KR920
Indiyawa	IN865

Table 1 | LoRa Mitar Aiki

2.6.Tsarin Hardware

RAK2003 Pi HAT kwamiti ne mai ɗaukar hoto na RAK2287 LoRa Concentrator wanda ke biye da Pi.  7

Daidaitaccen HAT, kuma ana iya saka shi zuwa allon Pi tare da mai haɗin fil 40. RAK2003 da  

An haɗa RAK2287 ta hanyar haɗin PCI-E.

2.7.Power Bukatun

WisGate yana aiki a 5V/3A. Ana iya kunna shi ta micro USB tare da 5V.

Siga Min. Yawanci Max.

LoRa Txmode	-	-	950mA
Yanayin jiran aiki	-	550mA	-
Yanayin ƙonewa			930mA

Table 2| Amfanin wutar lantarki

Lura: Yanayin LoRa Tx: Tsarin LoRa yana aiki a matsakaicin watsawa ikon jihar. Yanayin gwajin ƙonewa: Rasberi Pi CPU da ƙwaƙwalwar ajiya suna gudana a cikakken iya aiki

2.8.Bukatun Muhalli

Teburin da ke ƙasa yana lissafin aiki da buƙatun zazzabi na ajiya

Siga Min. Yawanci Max.

Yanayin Zazzabi Aiki	-20ºC	+25ºC	+65ºC
Tsawaita Yanayin Zazzabi	-40 ˚C		+85 ˚C
Ma'ajiya Yanayin Zazzabi	-40 ˚C		+85 ˚C

Table 3| Bukatun Muhalli

2.9.LoRa RF Halayen

2.9.1 Halayen RF mai watsawa

RAK2287 yana da kyakkyawan aikin watsawa. Ana ba da shawarar sosai don amfani da ingantaccen tsari don daidaitawar matakin wutar lantarki, wanda wani ɓangare ne na HAL. Wannan yana haifar da matsakaicin matakin ƙarfin fitarwa na RF da amfani na yanzu.

Yawan Mitar	Isar da Wuta	Modulation   Dabaru
923.3-927.5 MHz	13.39dBm	LoRa / FSK

2.9.2 Halayen RF mai karɓa

Ana ba da shawarar sosai, don amfani da ingantattun ƙimar daidaitawar RSSI, wanda wani ɓangare ne na HAL v3.1. Domin duka biyu, Rediyo 1 da 2, RSSI-Offset yakamata a saita -169.0. Tebur mai zuwa yana ba da yawanci matakin azanci na RAK2287.

Bandwidth sigina / [KHz]	Yada Factor	Hankali / [dBm]
500	12	-134
500	7	-120

Table 5| RX RF Halayen

3. eriya

3.1.LoRa Antenna

3.1.1 Samaview

Eriya LoRa tare da mai haɗin mace na RP-SMA wanda aka nuna kamar alkaluma masu biyowa.

Hoto na 6 | LoRa Antennaview

3.1.2 Girman Antenna

Ana nuna girman injin eriya a ƙasa:

Hoto na 7 | LoRa Antenna Dimension

3.1.3 Sigar Eriya

3.2.GPS Eriya

3.2.1 Kuview

 Ana nuna eriyar GPS don WisGate a ƙasa.

3.2.2GPS Girman Eriya

3.2.3GPS Bukatun Muhalli

An jera buƙatun muhalli na eriya a cikin tebur da ke ƙasa:

Sharuɗɗa	Zazzabi	Danshi
Aiki	-35ºC ~ +80ºC	0% ~ 95%
Adana	-40ºC ~ +85ºC	0% ~ 95%

Table 7| Bukatun Muhalli na GPS

3.2.4GPS Sigar Eriya

An jera ƙayyadaddun bayanan eriya a cikin tebur da ke ƙasa:

Ƙayyadaddun abu PET

Kewayon Mitar Karɓa	1575.42± 1.1	±2.5
Mitar Cibiyar (MHz) w/ 30mm2 GND jirgin sama	1575.42	±3.0
Bandwidth (MHz) (Rashin Dawowa ≤ -10dB)	≥10	±0.5
VSWR (a cikin Mitar Cibiyar)	≤2.0	±0.5
Gain (Zenith) (dBi Typ.) w/ 70mm2 GND Jirgin sama	4.5	±0.5
Axial Ratio (dB) w/ 70mm2 GND Jirgin sama	3.0	±0.2
Lawayarwa	Da'irar Hannun Dama	-
Impedance (Ω)	50	-
Matsakaicin Yawan Zazzabi (ppm/ºC)	0± 10	-

Table 8| Sigar Eriya ta GPS

AmpAn jera ƙayyadaddun ƙayyadaddun lifier a cikin tebur da ke ƙasa:

Ƙayyadaddun abu

Yawan Mitar	1575.42 MHz
Riba	27db ku
VSWR	≤2.0V
Coefficient na Amo	D 2.0 dBm
DC Voltage	3 ~ 5V
DC Yanzu	5 ± 2mA

Table 9| AmpBayani dalla -dalla

An jera ƙayyadaddun aikin gwajin muhalli a ƙasa:

Abu	Temp na al'ada.	Babban Temp.1	Low Temp.2
Ampliifier Gain	27dB ± 2.0	27dB ± 2.0	27dB ± 2.0
VSWR	≤ 2.0	≤ 2.0	≤ 2.0
Coefficient na Amo	≤ 2.0	≤ 2.0	≤ 2.0

1. Babban gwajin gwaji: sabulu a cikin zafin jiki (85º C) da zafi (95%) ɗakin 24-sa'a kuma komawa zuwa yanayin zafi na al'ada (aƙalla na awa 1) ba tare da canza siffar gani ba.

2. Gwajin ƙarancin zafin jiki: sabulu a cikin zafin jiki (-40º C) ɗakin 24-hour kuma komawa zuwa  

yanayin zafi na al'ada (aƙalla na awa 1) ba tare da canjin yanayin gani ba.

Table 10| Ayyukan Gwajin Muhalli

4. FCC Tsanaki

FCC Tsanaki:

Duk wani Canje-canje ko gyare-gyare da ƙungiyar da ke da alhakin ba ta amince da su ba yarda zai iya ɓata ikon mai amfani don sarrafa kayan aiki.  

Wannan na'urar ta bi sashe na 15 na Dokokin FCC. Aiki yana ƙarƙashin sharuɗɗa biyu masu zuwa: (1) Wannan na'urar bazai haifar da tsangwama mai cutarwa ba, kuma (2) dole ne wannan na'urar ta karɓi duk wani tsangwama da aka karɓa, gami da tsangwama wanda zai iya haifar da aiki maras so.

MUHIMMAN NOTE:  

Lura: An gwada wannan kayan aikin kuma an same shi don biyan iyakoki na Class B na'urar dijital, bisa ga sashi na 15 na Dokokin FCC. An ƙirƙira waɗannan iyakokin don ba da kariya mai ma'ana daga tsangwama mai cutarwa a cikin shigarwar mazauni. Wannan kayan aiki suna haifarwa, amfani kuma suna iya haskaka ƙarfin mitar rediyo kuma, idan ba a shigar da su ba kuma ana amfani da su daidai da umarnin, na iya haifar da tsangwama ga rediyo.  sadarwa. Koyaya, babu tabbacin cewa tsangwama ba zai faru a cikin ba musamman kafuwa. Idan wannan kayan aikin ya haifar da tsangwama mai cutarwa ga rediyo ko karɓar talabijin, wanda za'a iya tantance shi ta hanyar kunnawa da kunna, mai amfani yana an ƙarfafa su don ƙoƙarin gyara tsangwama ta hanyar ɗaya ko fiye daga cikin matakan masu zuwa:  

• Sake daidaitawa ko matsar da eriya mai karɓa. 
• Ƙara rabuwa tsakanin kayan aiki da mai karɓa.
• Haɗa kayan aikin a cikin mashiga ta kan hanya daban da wacce aka haɗa mai karɓar.
• Tuntuɓi dila ko gogaggen masanin rediyo/TV don taimako.

Bayanin Bayyanar Radiation na FCC:  

Wannan kayan aikin ya dace da iyakokin fiddawa na FCC da aka tsara don yanayin da ba a sarrafa shi.Ya kamata a shigar da wannan kayan aikin tare da mafi ƙarancin nisa 20cm tsakanin radiyo & jikin ku.

5. Gargaɗi na ISEDC

Gargadin ISEDC:

Wannan na'urar ta dace da Ƙirƙirar, Kimiyya, da Ci gaban Tattalin Arziki Kanada lasisin keɓe ma'auni(s) RSS. Aikin yana ƙarƙashin sharuɗɗa biyu masu zuwa:

RAK7248 wannan na'urar bazai haifar da tsangwama ba, kuma (2) wannan na'urar dole ne ta karɓi kowane tsangwama, gami da tsangwama da ka iya haifar aikin na'urar da ba'a so.

Na'urar tana bin ka'idodin bayyanar RF, masu amfani za su iya samun Kanada bayani kan bayyanar RF da yarda. Mafi ƙarancin nisa daga jiki don amfani da na'urar shine 20cm.

6. Tarihin Bita

Kwanan Bayanin Bita

1.0 Sakin Farko na Agusta 13, 2020 1.1 Ƙara bayanin FCC/ISEDC Satumba 10, 2020 1.2 Canza sunan samfur Satumba 14, 2020 1.3 Ƙara bayanin Rasberi Pi Hardware Satumba 15, 2020

7. Takaitaccen Takaddun Shaida

Wanda aka duba ta: Amintacce ta:

Game da RAKwireless: RAKwireless majagaba ne a cikin samar da sabbin abubuwa da bambancin salon salula da haɗin LoRaWAN mafita don duka na'urorin Edge da Gateway IoT. Mun yi imani da cewa ta hanyar sauki don amfani da ƙira na zamani za mu iya haɓaka lokacin kasuwa don aikace-aikacen IoT daban-daban don yin hakan inganta aikin tura tsarin a cikin saitunan Masu haɓakawa da na Kasuwanci.

Takardu / Albarkatu

Shenzhen Rakwireless Technology RAK7248 WisGate Rasberi Pi Gateway [pdf] Manual mai amfani RAK7248, 2AF6B-RAK7248, 2AF6BRAK7248, RAK7248 WisGate Rasberi Pi Gateway, WisGate Rasberi Pi Gateway

Magana

• Manual mai amfani