Fasahar Baya
Haɗin kai na yanzu yana ƙara zama mahimmanci ga aikace-aikacen ruwa.Tsayar da haɗin kai da sadarwa a kan teku yana ba da damar jiragen ruwa suyi tafiya cikin aminci da tafiye-tafiye babban kalubale.
Maganin Sadarwar Sadarwar Sadarwar IWAVE 4G LTEna iya magance wannan matsala ta hanyar samar da tsayayye, babban sauri, da amintacciyar hanyar sadarwa zuwa jirgin.
Bari mu koyi cewa yadda tsarin ke taimakawa a kasa.
1. Lokacin gwaji: 2018.04.15
2. Dalilin gwaji:
Gwajin Aiki na TD-LTE Fasahar hanyar sadarwa mai zaman kanta mara waya a cikin mahallin ruwa
Tabbatar da kewayon mara waya ta hadedde tashar tushe (PATRON - A10) a cikin Tekun
Dangantaka tsakanin nisan ɗaukar hoto mara waya da tsayin shigarwa na tashar cibiyar sadarwa mai zaman kansa (PATRON - A10).
• Menene adadin zazzagewar tashoshi na wayar hannu a cikin jirgin lokacin da aka tura tashar tushe a cikin iska tare da balloon helium?
• Ana amfani da balloon helium tare da saurin hanyar sadarwa na tashar wayar hannu ta tashar tushe a cikin iska.
• Lokacin da eriyar tashar tushe ke jujjuya sama tare da balloon, ana tabbatar da tasirin eriyar tashar tushe akan kewayon mara waya.
3. Kayan aiki a Gwaji:
Inventory na'ura akan Helium Balloon
| TD-LTE tsarin haɗin kai na cibiyar sadarwar masu zaman kansu (ATRON-A10)*1 |
| Transceiver na gani * 2 |
| 500meters Multimode fiber cibiyar sadarwa na USB |
| Laptop* 1 |
| Wireless Router * 1 |
Inventory na kayan aiki akan jirgi
| Babban abin hawa mai ƙarfi CPE (KNIGHT-V10) * 1 |
| Babban riba 1.8 mita omnidirectional gilashin fiber eriya * 2 (gami da kebul na ciyarwa) |
| Kebul na hanyar sadarwa |
| Laptop* 1 |
| Mara waya ta hanyar sadarwa |
Saita Cikakken Tsarin Gwaji
1,Shigar da Tasha
The Cibiyar sadarwar LTE masu zaman kansu duk a cikin tashar tushe guda ɗaya ana jibge shi akan balloon helium wanda ke da nisan kilomita 4 daga bakin tekun.Matsakaicin tsayin balloon helium ya kai mita 500.Amma a wannan gwajin, ainihin tsayinsa ya kai kimanin mita 150.
Ana nuna shigar da eriya ta jagora akan balloon a FIG.2.
Kwancen kwance na babban lobe yana fuskantar saman teku.Pan-Tilt na iya saurin daidaita kusurwar kwancen eriya don tabbatar da kaifin sigina da yanki.
2,Kanfigareshan hanyar sadarwa
Mara waya ta duk-in-daya LTE tushe tashoshi (Patron - A10) a kan balloons an haɗa su zuwa cibiyar sadarwa ta fiber optic ta hanyar igiyoyin Ethernet, igiyoyin fiber optic, transceivers fiber optic, da na'ura mai ba da hanya tsakanin hanyoyin sadarwa A. A halin yanzu, an haɗa shi zuwa uwar garken FTP (laptop). ) ta hanyar na'ura mai ba da hanya tsakanin hanyoyin sadarwa B.
3.Tsarin aiki10W CPE (Knight-V10)a kan jirgin
An saka CPE (Knight-V10) akan jirgin ruwan kamun kifi kuma an ɗora eriya a saman taksi.An ɗora eriya ta farko a mita 4.5 daga matakin teku kuma eriyar ta biyu tana da nisan mita 3.5 daga matakin teku.Nisa tsakanin eriya biyu kusan mita 1.8 ne.
Kwamfutar tafi-da-gidanka a kan jirgin yana da alaƙa da CPE ta hanyar kebul na cibiyar sadarwa kuma yana da alaƙa da uwar garken FTP mai nisa ta hanyar CPE.Ana amfani da software na FPT na kwamfutar tafi-da-gidanka da sabar FTP mai nisa tare don gwajin zazzagewar FTP.A halin yanzu, kayan aikin kididdigar zirga-zirga da ke gudana akan kwamfutar tafi-da-gidanka na iya yin rikodin zirga-zirgar Intanet da zirga-zirga a ainihin lokacin.Sauran masu gwadawa suna amfani da wayar hannu ko pads don haɗawa da WLAN da CPE ke rufe don kewaya Intanet a cikin gida, kamar kallon fim ɗin kan layi ko yin kiran bidiyo don gwada saurin Intanet.
Kanfigareshan Tasha
| Mitar cibiyar: 575Mhz |
| Bandwidth: 10Mhz |
| Ƙarfin mara waya: 2 * 39.8 dbm |
| Rabo na musamman na ƙasa: 2:5 |
| NC: an saita shi azaman 8 |
| Eriya SWR: babban eriya 1.17, eriya mai taimako 1.20 |
Tsarin gwaji
Gwaji Fara
A ranar 13 ga Afrilu, 15: 33, jirgin kamun kifi yana tafiya, kuma 17: 26 a wannan rana, an ɗaga balloon zuwa tsayin mita 150 kuma yana shawagi.Sa'an nan kuma, an haɗa CPE zuwa tashar tashar ba tare da waya ba, kuma a wannan lokacin, jirgin kamun kifi yana da nisa daga tashar 33km.
1,Gwajin Abun ciki
Kwamfutar tafi-da-gidanka a kan jirgin yana da zazzagewar FPT, kuma girman fayil ɗin da aka yi niyya shine 30G.Manhajar BWM da aka riga aka shigar tana yin rikodin zirga-zirgar Intanet na ainihin lokaci kuma tana yin rikodin bayanan GPS a ainihin lokacin ta wayar hannu.
Sauran ma'aikatan da ke cikin jirgin ruwan kamun kifi suna shiga Intanet ta hanyar WIFI, kallon bidiyo akan layi da yin kiran bidiyo.Bidiyon kan layi yana santsi, kuma muryar kiran bidiyo a bayyane take.Duk gwajin ya kasance 33km - 57.5 km.
2,Gwajin rikodi tebur
Yayin gwaji, abubuwan da ke cikin filler akan jirgin ruwa suna rikodin daidaitawar GPS, ƙarfin siginar CPE, matsakaicin adadin zazzagewar FTP, da sauran bayanai a cikin ainihin lokaci.Teburin rikodin bayanai shine kamar haka (ƙimar nisa shine nisa tsakanin jirgin da bakin teku, ƙimar zazzagewa shine ƙimar zazzagewar rikodin software na BWM).
| Nisa (km) | 32.4 | 34.2 | 36 | 37.8 | 39.6 | 41.4 | 43.2 | 45 | 46.8 | 48.6 | 50.4 | 52.2 | 54 | 55.8 |
| Ƙarfin Sigina (dbm) | -85 | -83 | -83 | -84 | -85 | -83 | -83 | -90 | -86 | -85 | -86 | -87 | -88 | -89 |
| Yawan Sauke (Mbps) | 10.7 | 15.3 | 16.7 | 16.7 | 2.54 | 5.77 | 1.22 | 11.1 | 11.0 | 4.68 | 5.07 | 6.98 | 11.4 | 1.89 |
3,Katsewar sigina
A Afrilu 13,19:33, siginar ta katse kwatsam.Lokacin da aka katse siginar, kwale-kwalen kamun kifin yana bakin teku daga tashar tushe kimanin kilomita 63 (a karkashin dubawa).Lokacin da aka katse siginar, ƙarfin siginar CPE shine - 90dbm.Bayanin GPS na tashar tushe: 120.23388888, 34.286944.Bayanin GPS na FTP na al'ada: 120.9143155, 34.2194236
4,Gwajin kammalawa.
Na 15thAfrilu, duk abubuwan da ke cikin jirgin suna komawa bakin teku kuma su kammala gwajin.
Binciken Sakamakon Gwaji
1,A kwance kusurwar ɗaukar hoto na eriya da jagorar kewayawa jirgin kamun kifi
Wurin ɗaukar hoto na eriya daidai yake da hanyar jirgin.Daga ƙarfin siginar CPE, ana iya ƙarasa da cewa jitter siginar yana da ɗan ƙarami.Ta wannan hanyar, eriya ta karkata zuwa gaba na iya gamsar da buƙatun ɗaukar hoto a cikin teku.Yayin gwaji, eriyar jagora tana da matsakaicin kusurwar yanke yanke na 10 °.
2,Rikodin FTP
Hoton dama yana wakiltar ƙimar zazzagewar FTP na ainihi, kuma daidai bayanin wurin GPS yana nunawa a cikin taswira.A lokacin gwaji, akwai jitter bayanai da yawa da kuma sigina a yawancin yankuna suna da kyau.Matsakaicin adadin zazzagewa ya fi 2 Mbps, kuma wurin haɗin da aka rasa na ƙarshe (63km daga gaɓa) shine 1.4 Mbps.
3,Sakamakon gwajin wayar tasha
Haɗin kai daga CPE zuwa cibiyar sadarwar masu zaman kansu mara waya ta ɓace, kuma bidiyon kan layi wanda ma'aikaci ke kallo yana da santsi kuma ba shi da lahani.
4,Katsewar sigina
Dangane da saitunan ma'aunin tushe da CPE, ƙarfin siginar CPE yakamata ya kasance kusan - 110dbm lokacin da aka katse siginar.Koyaya, a cikin sakamakon gwajin, ƙarfin siginar shine - 90dbm.
Bayan nazarin ƙungiyoyin, shine dalili na farko don tantance cewa ba'a saita ƙimar NCS zuwa daidaitaccen siga mai nisa ba.Kafin fara gwajin, ma'aikaci ba ya saita ƙimar NCS zuwa wuri mafi nisa saboda mafi nisa zai shafi ƙimar zazzagewa.
Koma ga adadi mai zuwa:
| Tsarin NCS | Theoretical mita band ga eriya guda (20Mhz Base Station) | Ka'idar bandwidth na eriya biyu (20Mhz Base Station) |
| Saita a cikin wannan Gwajin | 52Mbps | 110Mbps |
| Saita Mafi Nisa | 25Mbps | 50Mbps |
Shawara: An saita NCS zuwa saiti mafi nisa a gwaji na gaba, kuma abubuwan da aka samar na tsarin da adadin masu amfani sun damu lokacin da aka saita NCS zuwa wani tsari na daban.
Kammalawa
Ƙididdiga masu mahimmanci da ƙwarewa an samu ta ƙungiyar fasaha ta IWAVE ta wannan gwajin.Gwajin yana tabbatar da ikon kewayon cibiyar sadarwa na tsarin cibiyar sadarwar mara waya ta TD-LTE a cikin yanayin ruwa da iyawar ɗaukar hoto a cikin teku.A halin yanzu, bayan tashar wayar hannu ta shiga Intanet, ana samun saurin saukar da babban ƙarfin CPE a ƙarƙashin nisan kewayawa daban-daban da ƙwarewar mai amfani.
Shawarar Samfura
Lokacin aikawa: Maris 13-2023