Kusebenza Kanjani Ukuhlolwa Komhlaba Nge-Drone: Kusuka Ohlelweni kuya Kumephu Yokugcina
Amakhasimende ajwayele ukucabanga ukuthi ukuhlola umhlaba nge-drone kumane kuyindiza eyodwa ekhiqiza imephu ngokushesha. Eqinisweni, kunezigaba zobuchwepheshe eziyisithupha ezihlukene, lapho ukweqa noma ukujaha noma yisiphi isinyathelo kungalimaza ngokuthula ukunemba kokugcina. Ukuqonda okwenzeka ngempela phakathi kokusuka kwendiza kanye nemephu ye-orthomosaic eqediwe kuchaza ukuthi kungani ukuhlola okubili kwe-drone kwendawo efanayo kungaveza imiphumela yekhwalithi ehluke kakhulu.
Ukuhlolwa komhlaba kobungcweti nge-drone kudlula ekuhleleni indiza, ukusetha amaphuzu okulawula phansi (GCP), ukuqoqa izithombe zasemoyeni noma idatha ye-LiDAR, ukucubungula idatha, ukuhlola ikhwalithi nokukhiqiza imibiko yokugcina. Isigaba ngasinye sincike ngokugcwele kwesandulelayo. Isibonelo, uhlelo lwendiza olulungiselelwe iphesenti elingalungile lokumbondelana kwezithombe (overlap) alikwazi ukulungiswa kamuva phakathi nokucubungula.
Izigaba Eziyisithupha Eziyinhloko Zokuhlola Umhlaba Nge-Drone
Ukuhlela Indiza (Flight Planning)
Imingcele yendawo, ukucaca okudingekayo (GSD), ukuphakama kwendiza kanye nephesenti lokumbondelana kwezithombe kusethwa kusofthiwe yemephu.
Ukusetha Amaphuzu Okulawula Phansi (GCP)
Izimpawu ezilinganiswe nge-DGPS zibekwa kuyo yonke indawo ngaphambi kokundiza, zibophezele idatha yasemoyeni kuzixhumanisi zangempela zomhlaba.
Ukuqoqa Idatha Yasemoyeni
I-drone indiza ngokulandela iphethini yegridi ehleliwe, ithatha izithombe ezimbondelanayo eziqhubekayo noma idatha ye-LiDAR kuyo yonke indawo.
Ukucubungula Idatha (Data Processing)
Isofthiwe ekhethekile ihlanganisa izinkulungwane zezithombe ukudala imephu ye-orthomosaic eyodwa, ifu lamaphuzu e-3D kanye nemodeli yendawo yedijithali (DTM).
Ukuhlola Ikhwalithi Nokunemba
Idatha ecutshunguliwe iqhathaniswa namaphuzu okulawula phansi ukuze kuqinisekiswe ukuthi ukunemba kuhlangabezana nezidingo zobunjiniyela zephrojekthi.
Ukukhiqiza Imiphumela Yokugcina
Amamephu e-contour, imidwebo ye-CAD, amamodeli e-DTM nemibiko yobunjiniyela kuthunyelwa ngamafomethi adingwa ithimba lomklamo leklayenti.
Kungani Amaphuzu Okulawula Phansi (GCP) Ebaluleke Kangaka?
Ngaphandle kwamaphuzu okulawula phansi alinganiswe nge-DGPS, ukuhlola nge-drone kungaveza imephu ebukeka kahle ngokubona kodwa engalungile ngamamitha amaningi endaweni yangempela. Ama-GCP abopha idatha yasemoyeni ezilinganisweni zangempela, okuwumehluko oyinhloko phakathi kwesithombe esilula sasemoyeni nemephu yobunjiniyela enembe ngempela.
| Isigaba | Imiphumela Emibi Uma Kwaphuthunywa |
|---|---|
| Ukuhlela indiza | Ukumbondelana okunganele kwenza kube nezikhala noma amaphutha okuhlanganisa izithombe |
| Ukusetha ama-GCP | Ukuntuleka kwama-GCP noma ukungawabi kahle kubangela ukuba yonke imephu isuke endaweni yayo |
| Ukuqoqa idatha | Ukukhanya okungenele noma umoya onamandla kunciphisa ikhwalithi yezithombe nokunemba |
| Ukucubungula idatha | Ukweqa ukuhlola ikhwalithi kuvumela amaphutha ukuthi afinyelele embikweni wokugcina engabonwanga |
Isithombe se-orthomosaic esibukeka sihlanzekile asiqinisekisi ukunemba kwezinga lobunjiniyela sisodwa. Buza njalo ukuthi imiphumela yahlolwa yini ngokuqhathaniswa namaphuzu okulawula phansi, hhayi ukubukeka nje kwesithombe.
Ukundiza i-drone yingxenye elula kakhulu. Okwenziwa ngaphambi nangemva kwendiza yikhona okunquma ukuthi imephu ingathenjwa yini.
Izinto Ezinquma Ukunemba Kokugcina
Ukuphakama kwendiza, ukumbondelana kwezithombe, ikhwalithi yekhamera nobuningi bama-GCP kuhlangana ukuze kunqume ukunemba kokugcina. Inqubo yethu ye- ukuhlola nge-drone ithatha ukusetha ama-GCP njengesinyathelo esiyisibopho, futhi yonke iphrojekthi ihlanganisa ukuhlolwa kwekhwalithi ye- topography ngaphambi kokulethwa kokugcina.
Ingabe ufuna ukwazi ukuthi yini okufanele ifakwe embikweni wakho wokuhlola nge-drone?
Xhumana nathi ukuze uthole ukubonisana okuningiliziwe mayelana nokuthi indawo yakho izocutshungulwa kanjani.
Imibuzo Evame Ukubuzwa
Ukuhlela indiza, ukusetha ama-GCP, ukuqoqa idatha, ukucubungula, ukuhlola ukunemba nokukhiqiza imibiko.
Ama-GCP abopha izithombe zasemoyeni kuzixhumanisi eziqondile ze-DGPS ukuvimbela imephu ukuthi isuke endaweni yayo ngamamitha.
Ngokuvamile kudingeka amaphesenti angu-70 kuya kwangu-80 okumbondelana phakathi kwezithombe ezilandelanayo ukuze kuhlanganiswe kahle.
Kuncike kubukhulu bendawo, kusukela osukwini olu-1 ezindaweni ezincane kuya ezinsukwini ezimbalwa kumaphrojekthi amakhulu noma e-LiDAR.
I-orthomosaic yisithombe esisodwa esinencazelo ephezulu esilungiswe amaphutha ejometri ngokuhlanganisa izinkulungwane zezithombe ze-drone.
Indawo enosayizi omaphakathi idinga ama-GCP angu-4 kuya kwangu-6, kanti izindawo ezinkulu zidinga amaphuzu amaningi.
Yebo, umoya onamandla, ukukhanya okuphansi nezithunzi zamafu kunciphisa ikhwalithi, ngakho-ke izindiza zihlelwa ngesikhathi sezulu esihle.
Imephu ye-orthomosaic, imodeli ye-DTM, amamephu e-contour, imidwebo ye-CAD kanye nefu lamaphuzu e-3D.
Izixhumanisi zemodeli ziqhathaniswa ngokwezibalo namaphuzu okulawula azimele alinganiswe endle.
Yebo, izigaba eziyisithupha eziyisisekelo zihlala zifana kungakhathaliseki ubukhulu bendawo, kushintsha kuphela umsebenzi nesikhathi.
Lolu cingo lubekelwe imibuzo yamaphrojekthi kuphela. Sicela ungaxhumani nathi mayelana nokuqeqeshwa noma amathuba emisebenzi.