Wadanne fasahohin watsa mara waya mara waya (UAV) ne gama gari?

Na'urar watsa bidiyo mara matuki (UAV) wani muhimmin sashi ne na abin hawa mara matuki (UAV).Wani nau'i ne namara wayakayan watsawa.Tare da wasu fasaha, bidiyon da kyamarar ta ɗauka ta filin jirgin sama mara matuki (UAV) ana watsa shi ta hanyar waya.tashar kula da ƙasaa hakikanin lokaci.Don haka,dronemai watsa bidiyo iswanda kuma aka sani da "idanun" na jirage marasa matuka.

Don haka, menene na kowa a halin yanzuwatsa mara waya mara amfanifasaha?babbar fasahar UAVbidiyo watsa su nemai zuwas:

1,OFDMDabaru

A fasaha, fasahar watsawa da aka fi amfani da ita akan abin hawa mara matuki ita ce OFDM, wacce ke sarrafa nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan da ake amfani da su a cikin fasaha da ake amfani da su a cikin fasaha. iya zamawatsaa cikin kunkuntar bandwidth, za a iya tsayayya da tsangwama na zaɓin mita ko kunkuntarkuma so kan.

OFDMtAna amfani da echnique galibi akan tsarin aikace-aikacen kamar LTE (4G) da WIFI.

 

2,Farashin COFDM

COFDM, watau, lambar OFDM,karawasu tashar coding (musammanƙaraing gyara kuskure da interleaving)kafinTsarin OFDM don inganta amincin tsarin.Bambanci tsakanin COFDM da OFDM shineƙaralambar gyaran kuskure da tazarar kariyar kafin tsarin daidaitawa, ta yadda za a iya watsa siginar yadda ya kamata.A halin yanzu an fi amfani da COFDM a cikin DVB (watsa shirye-shiryen bidiyo na dijital), DVB-T, DVB-S, DVB-Cda dai sauransu.

Fasahar daidaitawa ta COFDM (Orthogonal Frequency Division Multiplexing) ita ce sabuwar fasahar watsa mara waya ta zamani, wacce ita ce fasahar jigilar kayayyaki ta gaske, kuma lambar ta kai 1704 m (yanayin 2K), har ma da yanayin 8K, kuma da gaske ya gane saurin watsa bayanai (2) -20Mbps) na "anti-tarewa" da "NLSO nesa" a cikin ainihin amfani kuma yana nuna kyakkyawan aikin "rarrabuwa" da "shigarwa".

Fasahar COFDM ita ce mafi kyawun fasaha da ake amfani da ita ga mara wayadogo iyakaHDbidiyoyiwatsa nadrone.

 

3,Fasahar WIFI

Wayar da bayanai na watsa Wi-Fi yana buƙatar ƙarshen watsawa da ƙarshen karɓa su fara kafa hanyar musafaha ta hanyar sadarwa, sannan kowane girman 512 bytes.Dole ne a kammala watsa kowane fakitin bayanai ba tare da la’akari da shi ba, kuma an batar da wani byte a cikin fakitin bayanan don sa a sake watsa duk fakitin bayanan, kuma fakitin bayanan na gaba ana watsa shi ne kawai bayan an kammala cikakkiyar fakitin data, wanda shine tushen dalilin jinkirin watsawa.

Don jirgin mara matuki, watsa bidiyo mara waya ta "ainihin lokaci" yana da mahimmanci.Saboda byte ɗaya, yana ɗaukar lokaci sosai don sake watsa fakitin gaba ɗaya.Watsawar Wi-Fi fasaha ce ta watsa mara waya mai sauri.Yana da sauƙin watsawakuma karba vra'ayi a cikin ainihin lokaci bisa ka'idar TCP/IP, amma jirgin na drones yana buƙatar babban aiki na lokaci-lokaci.Idan an sake aikawa da fakitin bayanai, mai aiki ba zai iya ganin bidiyo na ainihin lokaci ba.faifan bidiyo na HD wanda ba a jinkirta bawatsawasu nemdominma'aikaci.

Ƙirƙirar fasahar Wi-Fi ba a nufin a yi amfani da ita ga yanayin watsawa "Air-to-Ground"s.Hanyar musafaha ta hanyoyi biyu yana sa ba zai yiwu a warware nisa balatencyna watsa bidiyo na UAV, don haka ba zai iya biyan bukatun bidiyon UAV batfansating and karba.

 

4,Fasahar watsa hoto ta dijital Lightbridge

Lightbridge fasaha ce ta hanyar sadarwa ta musamman wacce DJI ta kirkira, wacce zata iyawatsa720p high-definitionbidiyoda nunawa.Yawan nisa na iya kaiwa 2kmkuma fiye da 5 km (LOS).

Fasahar Lightbridge tana amfani da watsa bayanai ta hanya ɗaya, wanda yayi kama da tsarin watsa babban hasumiya mai watsa shirye-shiryen talabijin.Idan aka kwatanta da WIFI, zai iya ragewabidiyojinkirin watsawa, wanda shine sau 2-3 na nisan watsa WIFI.Ana amfani da shi musamman a cikin jirage marasa matuki kamar DJI.

 

5,Dabarun Canja wurin Kwaikwayo

Ko da yake kusan babu jinkiri a analogdatawatsawa, fasahar watsa sigina ce ta hanya ɗaya, wacce ta ɗan yi kama da watsa siginar watsa shirye-shiryen talabijin na analog kafin fitowar siginar talabijin na dijital.Lokacin da siginar ta yi rauni, za a sami allo na dusar ƙanƙara, yana mai gargadin cewa matuƙin jirgin ya daidaita alkiblar jirgin ko ya tashi baya, kusa da wurin dawowa.

Amfanin wutar lantarki na analogdatawatsa yana da girma sosai.Lokacin da yake so ya kai tsayikara, ikon watsa shi ya wuce iyakar da aka kayyade.An kusan kawar da wannan fasaha a aikace-aikacen watsa bidiyo na Drone.

 

Takaitawa

Bincike ya nuna cewa fasahar OFDM da fasahar COFDM sune manyan abubuwan da ake amfani da su na Drone Transmitter, kuma fasahar COFDM ta fi ci gaba.Mai watsa Bidiyo mai tsayin Range Drone shine ma'auni tsakanin nisa da amfani da wutar lantarki, kuma yana da alaƙa da yawancin fasahohin daidaitawa, kamar yada bakan don haɓaka ƙarfin hana tsangwama, haɓaka fasahar tushen bayanai ta tasharso kan.

 

COFDM fasaha samfurin shawarwarin