Nasarar nasarar daukar hoto

——Yi amfani da ƙirar 3D don yin binciken cadastral don wurare masu tsayi

1. Bayani

Bayan shekaru da yawa na ci gaba, yanzu a kasar Sin, an yi amfani da daukar hoto a ko'ina a cikin ayyukan binciken cadastral na karkara. Duk da haka, saboda ƙuntataccen yanayin fasaha na kayan aiki , ɗaukar hoto mai banƙyama har yanzu yana da rauni don ma'auni na cadastral na wurare masu girma, musamman saboda tsayin daka da kuma tsarin hoto na ruwan tabarau na kyamarar da ba daidai ba. Bayan shekaru masu yawa na ƙwarewar aikin, mun gano cewa daidaiton taswirar ya kamata ya kasance a cikin 5 cm, to, GSD dole ne ya kasance a cikin 2 cm, kuma samfurin 3D ya zama mai kyau sosai, gefuna na ginin dole ne su kasance madaidaiciya kuma a fili.
Gabaɗaya, tsayin hangen nesa kamara da ake amfani da shi don ayyukan auna cadastral na karkara shine 25mm a tsaye kuma 35mm a tsaye. Don cimma daidaito na 1:500, GSD dole ne ya kasance tsakanin 2 cm. Kuma don tabbatar da cewa, tsayin daka na jiragen yana gabaɗaya tsakanin 70m-100m. Dangane da wannan tsayin jirgin sama, babu wata hanyar da za a iya kammala tattara bayanai na gine-ginen sama da mita 100. Ko da idan kun gudanar da jirgin ta wata hanya , ba zai iya tabbatar da kullun rufin ba, wanda ya haifar da rashin ingancin samfurin. .Kuma saboda tsayin yaƙin ya yi ƙasa da ƙasa, yana da matukar haɗari ga UAV.

Don magance wannan matsalar, a cikin Mayu 2019, mun gudanar da gwajin tabbatar da daidaito na Hotunan Oblique don gine-ginen birni. Manufar wannan gwajin shine don tabbatar da ko daidaiton taswirar ƙarshe na ƙirar 3D da aka gina ta RIY-DG4pros kyamarar oblique na iya biyan buƙatun 5 cm RMSE.

5. Kammalawa

A cikin wannan gwajin, wahalar ita ce, tsayi da ƙananan faɗuwar wurin, babban yawa na gidan da ƙasa mai rikitarwa. Wadannan abubuwan zasu haifar da karuwa a cikin wahalar jirgin , haɗari mafi girma, da kuma mafi muni na 3D , wanda zai haifar da raguwar daidaito a binciken cadastral.

Saboda RIY-DG4pros mai da hankali tsayi ya fi tsayin kyamarori na yau da kullun, yana tabbatar da cewa UAV ɗinmu na iya tashi a cikin ingantaccen tsayi, kuma ƙudurin hoton abubuwan ƙasa yana cikin 2 cm. A lokaci guda kuma, cikakken ruwan tabarau na iya taimaka mana mu sami ƙarin kusurwoyi na gidaje lokacin da yake tashi a cikin manyan gine-ginen gine-gine, don haka inganta ingancin samfurin 3D. Ƙarƙashin cewa duk na'urorin na'urorin suna da garantin, muna kuma inganta hawan jirgin sama da yawan rarraba wuraren sarrafawa don tabbatar da daidaiton samfurin 3D.

Hotunan oblique don manyan wuraren binciken cadastral, sau ɗaya saboda ƙayyadaddun kayan aiki da rashin ƙwarewa, za a iya auna su ta hanyar hanyoyin gargajiya kawai. Amma tasirin manyan gine-gine akan siginar RTK kuma yana haifar da wahala da rashin daidaiton ma'auni. Idan za mu iya amfani da UAV don tattara bayanai, za a iya kawar da tasirin siginar tauraron dan adam gaba ɗaya, kuma ana iya inganta daidaiton ma'auni sosai. Don haka nasarar wannan jarabawa tana da matukar ma'ana a gare mu.

Wannan gwajin ya tabbatar da cewa RIY-DG4pros na iya da gaske sarrafa RMS zuwa ƙaramin kewayon ƙima, yana da daidaitaccen ƙirar ƙirar 3D, kuma ana iya amfani da shi cikin ingantattun ayyukan ma'auni na manyan gine-gine.