Isebenza Kanjani i-Survey Yomhlaba nge-Drone: Ukusuka kwi-Flight Plan ukuya kwi-Map Yokugqibela
Abathengi badla ngokucinga ukuba ukuhlola umhlaba nge-drone kuko nje ukubhabha kanye okuvelisa imephu kwangoko. Eneneni, zikho izigaba zobugcisa ezintandathu ezahlukeneyo, apho ukutsiba okanye ukungxama kuso nasiphi na isigaba kunokonakalisa ngokufihlakeleyo ukuchaneka kokugqibela. Ukuqonda okwenzeka ngokwenene phakathi kokusuka kwendiza kunye nemephu ye-orthomosaic egqityiweyo kucacisa ukuba kutheni iisaveyi ezimbini ze-drone kwisiza esinye zinokuvelisa iikhompyutha ezahluke kakhulu ngokomgangatho.
I-survey yobungcali yomhlaba nge-drone idlula kucwangciso lwendiza, ukumiselwa kweendawo zolawulo lomhlaba (GCP), ukuqokelelwa kwemifanekiso yasemoyeni okanye idatha ye-LiDAR, ukusetyenzwa kwedatha, ukuhlolwa komgangatho kunye nokuveliswa kweziphumo zokugqibela. Isigaba ngasinye sixhomekeke ngokupheleleyo kweso sandulelayo. Umzekelo, isicwangciso sendiza esilungiselelwe ipesenti engalunganga yokumbondelana kwemifanekiso (overlap) asinakulungiswa kamva ngexesha lokucubungula.
Izigaba Ezintandathu Eziphambili ze-Survey Yomhlaba nge-Drone
Ucwangciso lweNdiza (Flight Planning)
Imida yesiza, ukucaca okufunekayo (GSD), ukuphakama kwendiza kunye nepesenti yokumbondelana kwemifanekiso kusetwa kwisofthiwe yemephu.
Ukumiselwa kwamaNqaku okuLawula umHlaba (GCP)
Iziphawuli ezilinganiswe nge-DGPS zibekwa kuyo yonke indawo ngaphambi kokubhabha, zibophelela idatha yasemoyeni kwiikholodineyithi zokwenyani.
Ukuqokelelwa kweDatha yaseMoyeni
I-drone ibhabha ngokulandela igridi ecwangcisiweyo, ithatha imifanekiso embondelanayo ngokuqhubekayo okanye idatha ye-LiDAR kuyo yonke indawo.
Ukusetyenzwa kweDatha (Data Processing)
Isofthiwe ekhethekileyo idibanisa amawaka emifanekiso ukwenza imephu ye-orthomosaic enye, ilifu lamachaphaza e-3D kunye nemodeli yomhlaba yedijithali (DTM).
Uvavanyo loMgangatho nokuChaneka
Idatha eqhubekekileyo ithelekiswa namanqaku okulawula umhlaba ukuqinisekisa ukuba ukuchaneka kuhlangabezana neemfuno zobunjineli.
Ukuveliswa kweZiphumo zoKugqibela
Iimephu ze-contour, imizobo ye-CAD, iimodeli ze-DTM neengxelo zobunjineli zithunyelwa ngeefomethi ezifunwa liqela lomthengi.
Kutheni amaNqaku okuLawula umHlaba (GCP) Ebaluleke Kangaka?
Ngaphandle kwamanqaku okulawula umhlaba alinganiswe nge-DGPS, i-survey ye-drone inokuvelisa imephu ebonakala intle emehlweni kodwa engachanekanga ngeemitha ezininzi emhlabeni. Ii-GCPs zibophelela idatha yasemoyeni kwimilinganiselo yokwenyani, engumahluko omkhulu phakathi komfanekiso oqhelekileyo kunye nemephu yobunjineli echanekileyo.
| Isigaba | Iziphumo eziMbi Xa Kuphuthunywe |
|---|---|
| Ucwangciso lwendiza | Ukumbondelana okungonelanga kubangela izikhewu okanye iimpazamo zokudibanisa imifanekiso |
| Ukumiselwa kwe-GCP | Ukunqongophala kwee-GCPs kwenza ukuba yonke imephu isuke kwindawo yayo echanekileyo |
| Ukuqokelela idatha | Ukukhanya okuncinci okanye umoya onamandla kunciphisa umgangatho nemifanekiso nokuchaneka |
| Ukusetyenzwa kwedatha | Ukutsiba uvavanyo lomgangatho kuvumela iimpazamo zingene kwingxelo yokugqibela zingabonwanga |
Umfanekiso we-orthomosaic obonakala ucacile awuqinisekisi ukuchaneka komgangatho wobunjineli ngokwawo. Soloko ubuza ukuba ingaba iziphumo zivavanyiwe ngokubhekiselele kumanqaku okulawula umhlaba.
Ukubhabhisa i-drone yeyona nxalenye ilula. Okwenziwa ngaphambi nasemva kwendiza kuko okuqinisekisa ukuba imephu inokuthenjwa na.
Izinto eziQinisekisa ukuChaneka koKugqibela
Ukuphakama kwendiza, ukumbondelana kwemifanekiso, umgangatho wekhamera kunye nobuninzi bee-GCPs zisebenza kunye ukumisela ukuchaneka kokugqibela. Inkqubo yethu ye- survey ye-drone ithatha ukumiselwa kwe-GCP njengesinyathelo esinyanzelekileyo, kwaye iphrojekthi nganye iquka uvavanyo lomgangatho we- topography ngaphambi kokunikezelwa.
Ingaba ufuna ukwazi ukuba yintoni efanele ukufakwa kwingxelo yakho ye-survey ye-drone?
Qhagamshelana nathi ukuze ufumane iingcebiso ezineenkcukacha malunga nendlela isiza sakho esiya kuhl текстовую kuqhutywa ngayo.
Imibuzo Ebuzwa Gqitha
Ucwangciso lwendiza, ukumiselwa kwe-GCP, ukuqokelela idatha, ukusetyenzwa kwayo, uvavanyo lokuchaneka nokuveliswa kweemephu.
Ii-GCPs zibophelela imifanekiso yasemoyeni kwiikholodineyithi ze-DGPS ezichanekileyo ukunqanda imephu ukuba ingasuki kwindawo yayo.
Ngokuqhelekileyo kufuneka iipesenti ezingama-70 ukuya kwezingama-80 phakathi kwemifanekiso elandelelanayo ukuze idityaniswe kakuhle.
Kuxhomekeke kubukhulu bendawo, ukusuka kusuku olu-1 kwiindawo ezincinci ukuya kwiintsuku ezininzi kwiiprojekthi ezinkulu ze-LiDAR.
I-orthomosaic ngumfanekiso omnye onenkcazo ephezulu olungiswe iimpazamo zejometri ngokudibanisa amawaka emifanekiso ye-drone.
Isiza esiphakathi sidinga ii-GCPs ezi-4 ukuya kwezi-6, kanti iindawo ezinkulu zidinga ngaphezulu.
Ewe, umoya onamandla, ukukhanya okuphantsi nezithunzi zamafu kunciphisa umgangatho, ngoko ke iindiza zicwangciswa kwimozulu entle.
Imephu ye-orthomosaic, imodeli ye-DTM, iimephu ze-contour, imizobo ye-CAD kunye nelifu lamachaphaza e-3D.
Iikholodineyithi zemodeli zithelekiswa namanqaku ovavanyo azimeleyo alinganiswe endle.
Ewe, izigaba ezintandathu ezingundoqo zihlala zifana nokuba singakanani isiza, kutshintsha kuphela umthamo womsebenzi nexesha.
Le nombolo yenzelwe imibuzo yeeprojekthi kuphela. Nceda ungatsaleli imibuzo yoqeqesho okanye amathuba emisebenzi.