Kugawa kwa Point Cloud ya LiDAR Kofotokozedwa Mwachidule
Point cloud ya LiDAR yaiwisi (raw) imakhala ndi mamiliyoni a madontho mumlengalenga wa 3D, pomwe dontho lililonse lili ndi ma coordinates a X, Y, Z okha popanda kudziwa zomwe likuyimira. Kugawa (Classification) ndi njira yofunika kwambiri yomwe imasintha deta imeneyi kukhala m'magulu a uinjiniya othandiza: nthaka yeniyeni, zomera, nyumba, mawaya amagetsi ndi zina.
Popanda kugawa koyenera, point cloud sitingagwire ntchito pa uinjiniya. Mapulogalamu sangapange mapu a mtunda wa digito (DTM), kuwerengera kuchuluka kwa dothi kapena kupanga mizere ya ma contour mpaka atadziwa bwino madontho omwe ali nthaka yeniyeni.
Onerani Ntchito Yogawa Ikuchitika Pompopompo
Chitsanzo Chosanthula Pogawa
Yesani Kugawa Madontho Ndi Inubwino
Zochitika Zogawa Madontho
Sinthani Msinkhu wa Pansi (Threshold)
Fyuluta ya Msinkhu
Momwe Kugawa Kumagwirira Ntchito Kwenikweni
Kuyika deta yaiwisi
Point cloud yosagawidwa imalowetsedwa ndi ma 3D coordinates, mphamvu ndi nambala yobwerera.
Algorithm yosefa nthaka
Ma algorithm apamwamba ngati Progressive TIN densification amazindikira pamwamba pa nthaka.
Kuwerengera msinkhu pamwamba pa nthaka
Msinkhu wa dontho lililonse lotsala umawerengedwa molondola poyerekeza ndi nthaka.
Kugawa magulu
Madontho amagawidwa m'magulu a msinkhu wa zomera, nyumba kapena magulu ena.
Kuwunika mtundu pamanja
Katswiri wa uinjiniya amawunika ndikukonza zolakwika m'mbali mwa nyumba ndi m'malo otsetsereka.
Malamulo a LiDAR amagwiritsa ntchito ma nambala a fayilo ya LAS: Gulu 2 likuyimira Nthaka (Ground), Gulu 3 mpaka 5 likuyimira zomera zazifupi, zapakati ndi zazitali, ndipo Gulu 6 likuyimira Nyumba.
Point cloud yosagawidwa ndi phokoso chabe lokhala ndi ma coordinates. Kugawa ndi komwe kumapangitsa kukhala mapu enieni a uinjiniya.
Chifukwa Chake Gawoli Ndi Lofunika Kwambiri Pantchito Yanu
Kugawa kolondola kumatsimikizira mtundu wa zotsatira zonse, kuyambira pamapu a ma contour mpaka pakuwerengera kuchuluka kwa nthaka. Gulu lathu la drone survey limaphatikiza ma algorithm a makina ndi kuwunika kwa akatswiri pantchito iliyonse ya LiDAR scan.
Kodi mukufuna deta ya LiDAR yogawidwa bwino?
Tiuzeni za ntchito yanu ndipo tikufotokozerani njira yathu yogawa ndi kuonetsetsa mtundu.
Mafunso Ofunsidwa Kawirikawiri
Ndi njira yokonza madontho a laser a 3D m'magulu othandiza monga nthaka, zomera ndi nyumba kudzera pakuwunika msinkhu.
Popanda kugawa pulogalamuyo sitingathe kulekanitsa nthaka ndi mitengo kapena nyumba, kupangitsa kuti DTM isatheke.
LAS ndi mtundu wamba wapadziko lonse wa binary wosungira deta ya 3D point cloud yokhala ndi ma code ogawa mu GIS ndi CAD.
Zambiri zimachitika ndi ma algorithms, koma kuwunika pamanja ndi akatswiri ndikofunikira m'malo ovuta.
Ndi mtunda wa digito womwe umamangidwa kuchokera ku madontho a nthaka okha, zomera ndi nyumba zitachotsedwa.
Umatanthauzira malire pakati pa nthaka ndi udzu waufupi; zolakwika zimatha kusokoneza mawonekedwe a nthaka.
Nthaka, zomera zazifupi, zapakati, zazitali, nyumba, ndi mawaya amagetsi.
Inde, amasokoneza mizere ya contour ndi kuwerengera dothi, chifukwa chake kuwunika mtundu ndikofunikira.
Ndi algorithm yosefa nthaka yomwe imazindikira madontho otsika kwambiri ngati nthaka.
Zimatengera kukula kwa malo ndi kuchuluka kwa zomera, koma kuphatikiza makina ndi manja kumatsimikizira kulondola kwambiri.
Mzerewu ndi wopangidwa ndi mafunso a ntchito zamalonda zokha. Chonde musalumikizane ndi zophunzitsira kapena ntchito.