I-Long Range Drone Video Transmitter iwukudlulisa ngokunembile nangokushesha okuphakelayo okugcwele kwevidiyo yedijithali ye-hd kusuka endaweni eyodwa kuya kwenye.Isixhumanisi sevidiyo siyingxenye ebalulekile ye-UAV.Kuyidivayisi yokudlulisa i-elekthronikhi engenantambo esebenzisa ubuchwepheshe obuthile ukuze idlulise ngokungenantambo ividiyo ethathwe ikhamera ku-UAV ekusayithi iye endaweni engemuva ekude ngesikhathi sangempela.Ngakho-ke, i-Isidluliseli sevidiyo se-UAVibizwa nangokuthi "amehlo" e-UAV.
Kukhona abaphezulu abangu-5ubuchwephesheiykweI-UAV Airborne Video Transmitters:
1. OFDM
Ngobuchwepheshe, ubuchwepheshe bokudlulisa obusetshenziswa kakhulu kuma-drones yi-OFDM, uhlobo lokushintshwa kwe-multi-carrier, okulungele kakhulu ukudluliswa kwedatha ngesivinini esikhulu.I-OFDM inezinzuzo eziningi, isibonelo:
● Inani elikhulu ledatha lingathunyelwa ngaphansi komkhawulokudonsa omncane.
● Mela ukufiphala okukhethiwe kwefrikhwensi noma ukuphazamiseka kwebhande elincane.
Kodwa-ke, i-OFDM nayo inokungalungi:
(1) I-offset yenkampani yenethiwekhi
(2) Kuzwela kakhulu kumsindo wesigaba kanye ne-offset frequency frequency offset
(3) Isilinganiso sepeak-to-avareji siphezulu uma kuqhathaniswa.
2. COFDM
I-COFDM inekhodi ye-OFDM.Yengeza ikhodi ethile yesiteshi (ikakhulukazi yengeza ukulungiswa kwamaphutha kanye nokushiya phakathi) ngaphambi kokushintshwa kwe-OFDM ukuze kuthuthukiswe ukwethembeka kwesistimu.Umehluko phakathi kwe-COFDM ne-OFDM ukuthi amakhodi okulungisa amaphutha nezikhawu zonogada zengezwa ngaphambi kokushintshwa kwe-orthogonal ukwenza ukudluliswa kwesignali kusebenze kakhulu.
I-OFDM isetshenziswa kakhulu ku-LTE (4G), i-WIFI nezinye izinhlelo zokusebenza.
I-COFDM okwamanjeabaningiezifaneleubuchwephesheye-UAV yebanga elideividiyo futhiukudluliswa kwedatha.Kunezici ezi-4 ezilandelayo:
● I-bandwidth inguphezulungokwaneleokweUkudluliswa kwevidiyo ye-HD.
● Ukudluliswa kokusakaza.Lapho okokusebenza kokwamukela kwengezwa ekugcineni, i-overhead yesiteshi ngeke yandiswe.
● Izimo zokudlulisela amasignali ziyinkimbinkimbi.Umphumela we-multipathuqinisekise iukudluliswa kwevidiyo ebangeni elide.Ngokwesibonelo.,Ividiyo ye-drone engu-150km kanye ne-data downlink.
● Ukuze kube lula ukusebenza kwe-UAV, isignali yokudlulisela ayikwazi ukuba nesiqondiso esinamandla kakhulu, futhi ibanga lokudlulisela lingakhushulwa ngokukhuphula amandla okudlulisela ukwandisa i-S/N yomamukeli.
3. I-Wifi
Ukudluliswa kwe-WiFi ubuchwepheshe obusetshenziswa kakhulu ukuze bungabiziUkudluliswa kwedatha ye-UAV.Kodwa-ke, ngenxa yokuthi i-WiFi inemikhawulo eminingi yobuchwepheshe futhi ayikwazi ukuguqulwa, futhi abakhiqizi abaningi basebenzisa isisombululo ukuze bayakhe ngokuqondile.Ngakho-ke, ukuntula kwayo nakho kuvelele kakhulu, njenge:
● Ifomethi yomklamo we-chip ayikwazi ukushintshwa
● Ubuchwepheshe buqina kakhulu
● Isu lokulawula ukuphazamiseka akusona isikhathi sangempela
● Ukusetshenziswa kwesiteshi kuphansi uma kuqhathaniswa, njll.
4.Ividiyo ye-Analog Ti-rasmission Technology
Amanye ama-UAV angenawo amakhamera e-gimbal angasebenzisa ubuchwepheshe bokudlulisa isignali ye-analog.
Cishe akukho ukubambezeleka ekudlulisweni kwevidiyo ye-analog, futhi esinye isici lapho ibanga elilinganiselwe lifinyelelwa, isikrini ngeke simise ngokuzumayo noma sonke.ividiyongokuphelele loss.
Ukudluliswa kwevidiyo ye-analogi nakho kuwubuchwepheshe bokudlulisa isignali yendlela eyodwa, obufana kancane nokudluliswa kwezimpawu zokusakaza ze-analog TV ngaphambi kokuba kuvele amasiginali we-TV yedijithali.Uma isignali iba buthaka, isikrini seqhwa sizovela, okuthixwayisasumshayeli ukuze alungise isiqondiso sendiza noma abuyele emuva.
5. I-LightbridgeTubuchwepheshe
I-LightbridgetI-echnology isebenzisa indlela eyodwa yokudlulisa idatha yesithombe efana nefomu lokudlulisa idatha lombhoshongo ophakeme wokusakaza we-TV.
Isiphetho
Ubuchwepheshe obuthuthuke kakhulu bokudluliswa kwevidiyo ye-drone ibanga elide buI-COFDM.
NgeI-COFDMukuthuthukiswa kobuchwepheshe, ziningi futhi izimoto ezingenamuntusukusebenzela abantu ezindaweni ezahlukeneinkundla efana nemephu, inhlolovo, ukugada ibanga elide, okuyingozi noma izindleko zesikhathi esiningi kakhulu zomsebenzi.Ngezimoto ezingenamuntu, umsebenzi ungaqedwa phezulu ngempumelelo.
Isikhathi sokuthumela: Jun-05-2023
