Long Range Drone Video Transmitter ndikutumiza molondola komanso mwachangu chakudya chamavidiyo a digito kuchokera kumalo amodzi kupita kwina.Ulalo wamavidiyo ndi gawo lofunikira la UAV.Ndi chipangizo chamagetsi chopanda zingwe chomwe chimagwiritsa ntchito ukadaulo wina kuti utumize popanda waya kanema wojambulidwa ndi kamera patsamba la UAV kupita kuseri kwakutali munthawi yeniyeni.Chifukwa chake, aUAV kanema transmitterimatchedwanso "maso" a UAV.
Pali top 5lusoizizaUAV Airborne Video Transmitters:
1. OFDM
Mwaukadaulo, ukadaulo womwe umagwiritsidwa ntchito kwambiri pakupatsira ma drones ndi OFDM, mtundu wamitundu yonyamula zonyamula zambiri, yomwe ili yoyenera kutumiza mwachangu kwambiri.OFDM ili ndi zabwino zambiri, mwachitsanzo:
● Kuchuluka kwa deta kungathenso kutumizidwa pansi pa bandwidth yopapatiza.
● Pewani kuzimiririka kwafupipafupi kapena kusokonezedwa ndi bandi yocheperako.
Komabe, OFDM ilinso ndi zovuta zake:
(1) Chonyamulira pafupipafupi kuchepetsa
(2) Kumverera kwambiri kwa phokoso la gawo ndi ma frequency onyamulira
(3) Chiŵerengero chapamwamba-ku-avareji ndichokwera kwambiri.
2. COFDM
COFDM ili ndi code ya OFDM.Imawonjezera zolemba zina zamakina (makamaka ndikuwonjezera kuwongolera zolakwika ndi kuphatikizira) musanayambe kusinthidwa kwa OFDM kuti dongosololi likhale lodalirika.Kusiyana pakati pa COFDM ndi OFDM ndikuti ma code owongolera zolakwika ndi nthawi za alonda amawonjezedwa musanayambe kusintha kwa orthogonal kuti kufalitsa kwa siginecha kukhale kothandiza kwambiri.
OFDM imagwiritsidwa ntchito kwambiri mu LTE (4G), WIFI ndi machitidwe ena ogwiritsira ntchito.
CFDM ili panokwambirizoyeneralusokwa UAV mtunda wautalikanema ndikutumiza deta.Pali zinthu 4 zotsatirazi:
● Bandiwifi ndiapamwambazokwanirazaKutumiza kwamavidiyo a HD.
● Kutumiza kwa wailesi.Pamene zipangizo zolandira zikuwonjezeredwa kumapeto kwa nthaka, pamwamba pa njirayo sichidzawonjezeka.
● Kutumiza kwa ma sign ndizovuta.Multipath effectonetsetsanikufalitsa mavidiyo mtunda wautali.Mwachitsanzo.,150km drone kanema ndi deta downlink.
● Pofuna kuthandizira kugwira ntchito kwa UAV, chizindikiro chotumizira sichingakhale ndi chiwongolero champhamvu kwambiri, ndipo mtunda wotumizira ukhoza kuwonjezereka mwa kuwonjezera mphamvu yotumizira kuti iwonjezere S / N ya wolandira.
3. Wifi
Kutumiza kwa WiFi ndiye ukadaulo wogwiritsidwa ntchito kwambiri komanso wotsika mtengoKutumiza kwa data ya UAV.Komabe, chifukwa WiFi ili ndi zolephera zambiri zaukadaulo ndipo sizingasinthidwe, ndipo opanga ambiri amagwiritsa ntchito yankho kuti amange mwachindunji.Chifukwa chake, zovuta zake ndizodziwika bwino, monga:
● Mapangidwe a chip sangathe kusinthidwa
● Zipangizo zamakono zimakhala zolimba kwambiri
● Njira yoyendetsera zosokoneza si nthawi yeniyeni
● Kugwiritsa ntchito mayendedwe ndikochepa, ndi zina.
4.Kanema wa Analogi Tukadaulo waukadaulo
Ma UAV ena opanda makamera a gimbal amatha kugwiritsa ntchito ukadaulo wotumizira ma analogi.
Pafupifupi palibe kuchedwa kufalitsa kanema wa analogi, ndipo chinthu china ndi pamene mtunda wa malire ufikira, chinsalu sichidzazizira mwadzidzidzi kapena lonse.kanemakwathunthu loss.
Kutumiza kwamavidiyo a analogi ndi njira imodzi yokha yotumizira ma siginoloji, yomwe ili yofanana pang'ono ndi kufalitsa ma siginecha a TV ya analogi ma siginecha a digito asanayambe kuwonekera.Chizindikirocho chikafooka, chinsalu cha chipale chofewa chidzawonekera, amenechenjezaswoyendetsa ndegeyo kuti asinthe njira ya ndege kapena kubwerera.
5. LightbridgeTzamakono
Lightbridgetechnology imagwiritsa ntchito njira imodzi yotumizira deta yofanana ndi mawonekedwe otumizira deta a nsanja yapamwamba yowulutsira pa TV.
Mapeto
Ukadaulo wapamwamba kwambiri wamakanema amtundu wautali wa drone ndiMtengo wa COFDM.
NdiMtengo wa COFDMchitukuko chaukadaulo, pali magalimoto ambiri osayendetsedwa ndi anthuskutumikira anthu osiyanasiyanamalo monga mapu, kufufuza, kulondera kwakutali, zomwe ndi zowopsa kapena zowononga nthawi yochuluka pantchito.Ndi magalimoto opanda anthu, ntchitoyo ikhoza kumalizidwa bwino kwambiri.
Nthawi yotumiza: Jun-05-2023
