Long Range Drone Video Transmitter yog kom raug thiab sai xa cov full hd digital video pub ntawm ib qhov chaw mus rau lwm qhov.Qhov txuas video yog ib feem tseem ceeb ntawm UAV.Nws yog ib lub tshuab xa hluav taws xob wireless uas siv qee yam thev naus laus zis los wirelessly xa cov yees duab ntes los ntawm lub koob yees duab ntawm qhov chaw UAV mus rau qhov chaw taws teeb hauv lub sijhawm.Yog li ntawd, lubUAV video transmittertseem hu ua "qhov muag" ntawm UAV.
Muaj 5 sab saum tojtshuabyogntawmUAV Airborne Video Transmitters:
1. OFDM
Technically, feem ntau siv tshuab kis tau tus mob ntawm drones yog OFDM, ib hom multi-carrier modulation, uas yog tsim nyog rau high-ceev cov ntaub ntawv kis tau tus mob.OFDM muaj ntau yam zoo, piv txwv li:
● Cov ntaub ntawv ntau kuj tuaj yeem xa mus rau hauv qhov nqaim bandwidth.
● Resistant zaus xaiv fading lossis nqaim band cuam tshuam.
Txawm li cas los xij, OFDM kuj muaj qhov tsis zoo:
(1) Tus neeg nqa khoom zaus offset
(2) rhiab heev rau theem suab nrov thiab cov cab kuj zaus offset
(3) Lub ncov-rau-nruab nrab piv yog qhov siab.
2. COFDM
COFDM yog coded OFDM.Nws ntxiv qee qhov kev coding channel (tsuas yog ntxiv kev kho qhov yuam kev thiab cuam tshuam) ua ntej OFDM kev hloov kho los txhim kho kev ntseeg tau ntawm lub kaw lus.Qhov sib txawv ntawm COFDM thiab OFDM yog qhov kev ua yuam kev kho cov lej thiab cov kev tiv thaiv ib ntus ntxiv ua ntej orthogonal modulation kom teeb liab kis tau zoo.
OFDM feem ntau yog siv hauv LTE (4G), WIFI thiab lwm yam kev siv tshuab.
COFDM tam sim nofeem ntauhaumtshuabfor long-distance UAVyees duab thiabcov ntaub ntawv kis tau tus mob.Muaj 4 yam hauv qab no:
● Lub bandwidth yogsiabtxausrauHD video kis tau tus mob.
● Kev tshaj tawm xov xwm.Thaum tau txais cov khoom siv ntxiv rau hauv av kawg, cov nyiaj siv ua haujlwm ntawm cov channel yuav tsis nce ntxiv.
● Cov teeb liab kis tau tus mob yog qhov nyuaj.Cov nyhuv multipathxyuas covkis tau tus mob mus ntev video.Piv txwv li.,150km drone video thiab cov ntaub ntawv downlink.
● Txhawm rau ua kom yooj yim rau kev ua haujlwm ntawm UAV, lub teeb liab kis tau tus mob tsis tuaj yeem muaj kev taw qhia muaj zog heev, thiab qhov kev sib kis tau tuaj yeem nce ntxiv los ntawm kev ua kom lub zog sib kis kom nce S / N ntawm lub receiver.
3. Wifi
WiFi kis tau tus mob yog cov cuab yeej siv dav tshaj plaws kom tau txais txiaj ntsig zooUAV data transmission.Txawm li cas los xij, vim tias WiFi muaj ntau yam kev txwv thiab tsis tuaj yeem hloov kho, thiab ntau lub tuam txhab siv cov kev daws teeb meem los tsim nws ncaj qha.Yog li ntawd, nws qhov tsis zoo kuj tseem ceeb heev, xws li:
● Cov qauv tsim chip tsis tuaj yeem hloov kho
● Lub tshuab muaj zog dua
● Kev tswj hwm kev cuam tshuam tsis yog lub sijhawm tiag tiag
● Kev siv Channel yog qhov tsawg, thiab lwm yam.
4.Analog Video Transmission Technology
Qee cov UAVs uas tsis muaj lub koob yees duab gimbal tuaj yeem siv analog teeb liab kis tau tus mob.
Yuav luag tsis muaj kev ncua sij hawm hauv analog video kis tau tus mob, thiab lwm qhov tshwj xeeb yog thaum qhov kev ncua deb mus txog, lub vijtsam yuav tsis dheev khov lossis tag nrho.yees duabkiag loss.
Analog video kis tau tus mob kuj yog ib-txoj kev teeb liab kis tau tus mob thev naus laus zis, uas yog me ntsis zoo ib yam li kev sib kis ntawm analog TV tshaj tawm cov cim ua ntej cov teeb liab TV tau tshwm sim.Thaum lub teeb liab ua tsis muaj zog, lub vijtsam snowflake yuav tshwm sim, qhoceeb toomstus kws tsav dav hlau kho lub davhlau kev taw qhia lossis rov qab mus.
5. Lub teebTtshuab
Lightbridgetechnology siv ib-txoj kev duab cov ntaub ntawv kis tau tus mob zoo ib yam li cov ntaub ntawv kis tau tus mob daim ntawv ntawm ib tug high-nce TV tshaj tawm xov xwm ntauwd.
Xaus
Cov thev naus laus zis tshaj plaws rau qhov ntev ntev drone video transmitter yogCOFDM.
NrogCOFDMtechnology kev loj hlob, muaj ntau thiab ntau unmanned tshebsua haujlwm rau cov neeg sib txawvdaim teb xws li daim ntawv qhia, kev soj ntsuam, kev soj ntsuam ntev, uas yog qhov txaus ntshai lossis ntau dhau sijhawm rau kev ua haujlwm.Nrog rau cov tsheb tsis muaj neeg siv, kev ua haujlwm tuaj yeem ua tiav tau zoo.
Post lub sij hawm: Jun-05-2023
