{"id":26664,"date":"2024-08-13T03:59:09","date_gmt":"2024-08-12T20:59:09","guid":{"rendered":"https:\/surveying-engineer-in-the-point-cloud-to-bim-team\/"},"modified":"2024-09-09T10:14:22","modified_gmt":"2024-09-09T10:14:22","slug":"vai-tro-quan-trong-cua-ky-su-do-dac-trong-doi-ngu-bim-tu-point-cloud","status":"publish","type":"post","link":"https:\/\/vmts.ch\/vi\/vai-tro-quan-trong-cua-ky-su-do-dac-trong-doi-ngu-bim-tu-point-cloud\/","title":{"rendered":"Vai tr\u00f2 quan tr\u1ecdng c\u1ee7a k\u1ef9 s\u01b0 \u0111o \u0111\u1ea1c trong \u0111\u1ed9i ng\u0169 BIM t\u1eeb point cloud"},"content":{"rendered":"<p><strong>Vai tr\u00f2 quan tr\u1ecdng c\u1ee7a k\u1ef9 s\u01b0 \u0111o \u0111\u1ea1c trong \u0111\u1ed9i ng\u0169 BIM t\u1eeb point cloud<\/strong>, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong c\u00e1c d\u1ef1 \u00e1n l\u1edbn. H\u1ecd \u0111\u1ea3m b\u1ea3o r\u1eb1ng Point Cloud ch\u00ednh x\u00e1c v\u00e0 nh\u1ea5t qu\u00e1n, \u0111i\u1ec1u n\u00e0y t\u1ea1o n\u1ec1n t\u1ea3ng cho t\u1ea5t c\u1ea3 c\u00e1c quy tr\u00ecnh c\u00f3 \u0111\u1ed9 ch\u00ednh x\u00e1c cao ti\u1ebfp theo v\u00e0 cu\u1ed1i c\u00f9ng \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng c\u1ee7a m\u00f4 h\u00ecnh 3D BIM.<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">N\u1ed9i Dung B\u00e0i Vi\u1ebft<\/p>\n<span class=\"ez-toc-title-toggle\"><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/vmts.ch\/vi\/vai-tro-quan-trong-cua-ky-su-do-dac-trong-doi-ngu-bim-tu-point-cloud\/#Bai_hoc_tu_10_nam_truoc_Nhung_thach_thuc_trong_viec_xu_ly_Point_Cloud_de_BIM\" >B\u00e0i h\u1ecdc t\u1eeb 10 n\u0103m tr\u01b0\u1edbc: Nh\u1eefng th\u00e1ch th\u1ee9c trong vi\u1ec7c x\u1eed l\u00fd Point Cloud \u0111\u1ec3 BIM<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/vmts.ch\/vi\/vai-tro-quan-trong-cua-ky-su-do-dac-trong-doi-ngu-bim-tu-point-cloud\/#Loi_ich_hien_nay_trong_viec_xu_ly_Point_Cloud_de_BIM\" >L\u1ee3i \u00edch hi\u1ec7n nay trong vi\u1ec7c x\u1eed l\u00fd Point Cloud \u0111\u1ec3 BIM<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/vmts.ch\/vi\/vai-tro-quan-trong-cua-ky-su-do-dac-trong-doi-ngu-bim-tu-point-cloud\/#Vai_tro_cua_ky_su_do_dac_trong_doi_ngu_Point_Cloud_to_BIM\" >Vai tr\u00f2 c\u1ee7a k\u1ef9 s\u01b0 \u0111o \u0111\u1ea1c trong \u0111\u1ed9i ng\u0169 Point Cloud to BIM<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/vmts.ch\/vi\/vai-tro-quan-trong-cua-ky-su-do-dac-trong-doi-ngu-bim-tu-point-cloud\/#Ket_luan\" >K\u1ebft lu\u1eadn<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/vmts.ch\/vi\/vai-tro-quan-trong-cua-ky-su-do-dac-trong-doi-ngu-bim-tu-point-cloud\/#Hoi_dap\" >H\u1ecfi \u0111\u00e1p<\/a><\/li><\/ul><\/nav><\/div>\n<h3><span class=\"ez-toc-section\" id=\"Bai_hoc_tu_10_nam_truoc_Nhung_thach_thuc_trong_viec_xu_ly_Point_Cloud_de_BIM\"><\/span>B\u00e0i h\u1ecdc t\u1eeb 10 n\u0103m tr\u01b0\u1edbc: Nh\u1eefng th\u00e1ch th\u1ee9c trong vi\u1ec7c x\u1eed l\u00fd Point Cloud \u0111\u1ec3 BIM<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>H\u01a1n m\u1ed9t th\u1eadp k\u1ef7 tr\u01b0\u1edbc, ch\u00fang t\u00f4i b\u1eaft \u0111\u1ea7u chuy\u1ec3n \u0111\u1ed5i Point Cloud th\u00e0nh c\u00e1c m\u00f4 h\u00ecnh 3D v\u1edbi m\u1ed9t \u0111\u1ed9i ng\u0169 nh\u1ecf g\u1ed3m ch\u1ec9 n\u0103m ki\u1ebfn tr\u00fac s\u01b0. Nh\u1eefng ng\u00e0y \u0111\u1ea7u \u0111\u1ea7y th\u1eed th\u00e1ch v\u00e0 g\u1eb7p ph\u1ea3i nhi\u1ec1u c\u1ea3n tr\u1edf. M\u1ed9t trong nh\u1eefng v\u1ea5n \u0111\u1ec1 l\u1edbn nh\u1ea5t l\u00e0 thi\u1ebfu ph\u1ea7n m\u1ec1m v\u00e0 plugin ph\u00f9 h\u1ee3p \u0111\u1ec3 x\u1eed l\u00fd Point Cloud, h\u1ea7u h\u1ebft trong s\u1ed1 \u0111\u00f3 \u0111\u1ec1u r\u1ea5t \u0111\u1eaft \u0111\u1ecf. (Ngay c\u1ea3 AutoCAD c\u0169ng ch\u1ec9 b\u1eaft \u0111\u1ea7u cho ph\u00e9p nh\u1eadp Point Cloud t\u1eeb phi\u00ean b\u1ea3n 2011.)<\/p>\n<p>M\u1ed9t th\u00e1ch th\u1ee9c quan tr\u1ecdng kh\u00e1c m\u00e0 ch\u00fang t\u00f4i g\u1eb7p ph\u1ea3i l\u00e0 s\u1ef1 sai l\u1ec7ch c\u1ee7a Point Cloud. V\u1edbi c\u00f4ng ngh\u1ec7 c\u00f3 s\u1eb5n c\u00e1ch \u0111\u00e2y 10 n\u0103m, h\u1ea7u h\u1ebft c\u00e1c Point Cloud \u0111\u01b0\u1ee3c kh\u00e1ch h\u00e0ng cung c\u1ea5p \u0111\u1ec1u c\u00f3 m\u1ed9t m\u1ee9c \u0111\u1ed9 l\u1ed7i nh\u1ea5t \u0111\u1ecbnh, \u0111\u00f4i khi nghi\u00eam tr\u1ecdng. C\u00e1c thu\u1eadt to\u00e1n Register l\u00fac \u0111\u00f3 d\u1ec5 m\u1eafc l\u1ed7i, th\u01b0\u1eddng \u0111\u01b0a ra c\u00e1c b\u00e1o c\u00e1o \u201cxanh\u201d khi\u1ebfn m\u1ecdi th\u1ee9 tr\u00f4ng nh\u01b0 \u0111\u00e3 ch\u00ednh x\u00e1c. \u0110\u1ec3 kh\u1eafc ph\u1ee5c \u0111i\u1ec1u n\u00e0y, ch\u00fang t\u00f4i th\u01b0\u1eddng ph\u1ea3i v\u1ebd l\u1ea1i to\u00e0n b\u1ed9 d\u1eef li\u1ec7u b\u1eb1ng tay tr\u00ean 2D v\u00e0 sau \u0111\u00f3 t\u1ec9 m\u1ec9 gh\u00e9p c\u00e1c y\u1ebfu t\u1ed1 l\u1ea1i v\u1edbi nhau \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 ch\u00ednh x\u00e1c. Qu\u00e1 tr\u00ecnh t\u1ed1n nhi\u1ec1u c\u00f4ng s\u1ee9c v\u00e0 th\u1eddi gian n\u00e0y \u0111\u00e3 mang l\u1ea1i cho ch\u00fang t\u00f4i s\u1ef1 khen ng\u1ee3i cao t\u1eeb kh\u00e1ch h\u00e0ng v\u00ec \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a c\u00e1c m\u00f4 h\u00ecnh 3D c\u1ee7a ch\u00fang t\u00f4i. V\u00e0o th\u1eddi \u0111i\u1ec3m \u0111\u00f3, ch\u00fang t\u00f4i kh\u00f4ng c\u00f3 s\u1ef1 h\u1ed7 tr\u1ee3 c\u1ee7a k\u1ef9 s\u01b0 \u0111o \u0111\u1ea1c v\u00e0 kh\u00f4ng nh\u1eadn ra r\u1eb1ng m\u00ecnh c\u1ea7n m\u1ed9t ng\u01b0\u1eddi nh\u01b0 v\u1eady.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Loi_ich_hien_nay_trong_viec_xu_ly_Point_Cloud_de_BIM\"><\/span>L\u1ee3i \u00edch hi\u1ec7n nay trong vi\u1ec7c x\u1eed l\u00fd Point Cloud \u0111\u1ec3 BIM<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Ng\u00e0y nay, ch\u00fang t\u00f4i may m\u1eafn c\u00f3 trong tay c\u00e1c c\u00f4ng c\u1ee5 ph\u1ea7n m\u1ec1m m\u1ea1nh m\u1ebd v\u00e0 m\u00e1y qu\u00e9t laser 3D ch\u00ednh x\u00e1c h\u01a1n r\u1ea5t nhi\u1ec1u. Nh\u1eefng ti\u1ebfn b\u1ed9 c\u00f4ng ngh\u1ec7 n\u00e0y \u0111\u00e3 l\u00e0m cho c\u00e1c quy tr\u00ecnh th\u1ee7 c\u00f4ng v\u00e0 t\u1ed1n th\u1eddi gian trong qu\u00e1 kh\u1ee9 tr\u1edf n\u00ean l\u1ed7i th\u1eddi. Tuy nhi\u00ean, vi\u1ec7c ki\u1ec3m tra k\u1ef9 l\u01b0\u1ee1ng Point Cloud tr\u01b0\u1edbc khi chuy\u1ec3n sang m\u00f4 h\u00ecnh 3D v\u1eabn l\u00e0 m\u1ed9t b\u01b0\u1edbc quan tr\u1ecdng. Hai chuy\u00ean gia \u0111o \u0111\u1ea1c c\u1ee7a ch\u00fang t\u00f4i \u0111\u1ea3m nh\u1eadn nhi\u1ec7m v\u1ee5 quan tr\u1ecdng n\u00e0y, \u0111\u1ea3m b\u1ea3o r\u1eb1ng ngay c\u1ea3 nh\u1eefng sai l\u1ec7ch nh\u1ecf ch\u1ec9 v\u00e0i milimet c\u0169ng \u0111\u01b0\u1ee3c ph\u00e1t hi\u1ec7n v\u00e0 s\u1eeda ch\u1eefa. Ch\u00fang t\u00f4i sau \u0111\u00f3 cung c\u1ea5p cho kh\u00e1ch h\u00e0ng b\u00e1o c\u00e1o chi ti\u1ebft v\u1ec1 t\u1ea5t c\u1ea3 c\u00e1c \u0111i\u1ec1u ch\u1ec9nh \u0111\u00e3 th\u1ef1c hi\u1ec7n.<\/p>\n<p>Th\u00fa v\u1ecb l\u00e0, m\u1eb7c d\u00f9 t\u1ef7 l\u1ec7 l\u1ed7i \u0111\u00e3 gi\u1ea3m t\u1eeb 100% c\u00e1ch \u0111\u00e2y m\u1ed9t th\u1eadp k\u1ef7 xu\u1ed1ng c\u00f2n h\u01a1n 50% hi\u1ec7n nay, kh\u1ed1i l\u01b0\u1ee3ng d\u1ef1 \u00e1n c\u1ea7n ki\u1ec3m tra v\u00e0 s\u1eeda ch\u1eefa c\u1ea9n th\u1eadn v\u1eabn khi\u1ebfn \u0111\u1ed9i ng\u0169 c\u1ee7a ch\u00fang t\u00f4i b\u1eadn r\u1ed9n. Ch\u00fang t\u00f4i hi\u1ec7n \u0111ang \u0111\u1ed1i m\u1eb7t v\u1edbi nh\u1eefng th\u00e1ch th\u1ee9c m\u1edbi do c\u00e1c c\u00f4ng ngh\u1ec7 m\u1edbi n\u1ed5i nh\u01b0 c\u00e1c d\u00f2ng m\u00e1y qu\u00e9t di \u0111\u1ed9ng v\u00e0 k\u1ebft h\u1ee3p nhi\u1ec1u ph\u01b0\u01a1ng ph\u00e1p kh\u1ea3o s\u00e1t kh\u00e1c nhau mang l\u1ea1i.<\/p>\n<p>Ng\u00e0y nay, vai tr\u00f2 c\u1ee7a k\u1ef9 s\u01b0 \u0111o \u0111\u1ea1c l\u00e0 r\u1ea5t quan tr\u1ecdng trong vi\u1ec7c ki\u1ec3m tra v\u00e0 s\u1eeda ch\u1eefa t\u1ea5t c\u1ea3 c\u00e1c Point Cloud, l\u00e0m cho k\u1ef9 s\u01b0 \u0111o \u0111\u1ea1c tr\u1edf n\u00ean kh\u00f4ng th\u1ec3 thi\u1ebfu trong c\u00e1c d\u1ef1 \u00e1n t\u1eeb Point Cloud to BIM.<\/p>\n<div id=\"attachment_26690\" style=\"width: 2074px\" class=\"wp-caption alignnone\"><img decoding=\"async\" aria-describedby=\"caption-attachment-26690\" class=\"lazyload wp-image-26690 size-full\" title=\"Vai tr\u00f2 quan tr\u1ecdng c\u1ee7a k\u1ef9 s\u01b0 \u0111o \u0111\u1ea1c trong \u0111\u1ed9i ng\u0169 BIM t\u1eeb point cloud\" src=\"https:\/\/vmts.ch\/wp-content\/uploads\/2024\/08\/1_vietnamese.webp\" data-orig-src=\"https:\/\/vmts.ch\/wp-content\/uploads\/2024\/08\/1_vietnamese.webp\" alt=\"Vai tr\u00f2 quan tr\u1ecdng c\u1ee7a k\u1ef9 s\u01b0 \u0111o \u0111\u1ea1c trong \u0111\u1ed9i ng\u0169 BIM t\u1eeb point cloud\" width=\"2064\" height=\"1152\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20width%3D%272064%27%20height%3D%271152%27%20viewBox%3D%270%200%202064%201152%27%3E%3Crect%20width%3D%272064%27%20height%3D%271152%27%20fill-opacity%3D%220%22%2F%3E%3C%2Fsvg%3E\" data-srcset=\"https:\/\/vmts.ch\/wp-content\/uploads\/2024\/08\/1_vietnamese-200x112.webp 200w, https:\/\/vmts.ch\/wp-content\/uploads\/2024\/08\/1_vietnamese-300x167.webp 300w, https:\/\/vmts.ch\/wp-content\/uploads\/2024\/08\/1_vietnamese-400x223.webp 400w, https:\/\/vmts.ch\/wp-content\/uploads\/2024\/08\/1_vietnamese-600x335.webp 600w, https:\/\/vmts.ch\/wp-content\/uploads\/2024\/08\/1_vietnamese-768x429.webp 768w, https:\/\/vmts.ch\/wp-content\/uploads\/2024\/08\/1_vietnamese-800x447.webp 800w, https:\/\/vmts.ch\/wp-content\/uploads\/2024\/08\/1_vietnamese-1024x572.webp 1024w, https:\/\/vmts.ch\/wp-content\/uploads\/2024\/08\/1_vietnamese-1200x670.webp 1200w, https:\/\/vmts.ch\/wp-content\/uploads\/2024\/08\/1_vietnamese-1536x857.webp 1536w, https:\/\/vmts.ch\/wp-content\/uploads\/2024\/08\/1_vietnamese.webp 2064w\" data-sizes=\"auto\" data-orig-sizes=\"(max-width: 2064px) 100vw, 2064px\" \/><p id=\"caption-attachment-26690\" class=\"wp-caption-text\">Vai tr\u00f2 quan tr\u1ecdng c\u1ee7a k\u1ef9 s\u01b0 \u0111o \u0111\u1ea1c trong \u0111\u1ed9i ng\u0169 BIM t\u1eeb point cloud<\/p><\/div>\n<h3><span class=\"ez-toc-section\" id=\"Vai_tro_cua_ky_su_do_dac_trong_doi_ngu_Point_Cloud_to_BIM\"><\/span>Vai tr\u00f2 c\u1ee7a k\u1ef9 s\u01b0 \u0111o \u0111\u1ea1c trong \u0111\u1ed9i ng\u0169 Point Cloud to BIM<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h4>Th\u00e1ch th\u1ee9c t\u1eeb c\u00e1c c\u00f4ng ngh\u1ec7 m\u1edbi<\/h4>\n<p>C\u00e1c m\u00e1y qu\u00e9t 3D di d\u1ed9ng \u0111\u00e3 tr\u1edf th\u00e0nh m\u1ed9t gi\u1ea3i ph\u00e1p h\u1ea5p d\u1eabn cho vi\u1ec7c thu th\u1eadp d\u1eef li\u1ec7u nhanh ch\u00f3ng v\u00e0 d\u1ec5 d\u00e0ng tr\u00ean di\u1ec7n r\u1ed9ng. Tuy nhi\u00ean, s\u1ef1 ti\u1ec7n l\u1ee3i n\u00e0y \u0111i k\u00e8m v\u1edbi nh\u1eefng nh\u01b0\u1ee3c \u0111i\u1ec3m \u0111\u00e1ng k\u1ec3. V\u00ed d\u1ee5, vi\u1ec7c s\u1eed d\u1ee5ng m\u00e1y qu\u00e9t di \u0111\u1ed9ng cho c\u00e1c d\u1ef1 \u00e1n \u0111\u00f2i h\u1ecfi \u0111\u1ed9 ch\u00ednh x\u00e1c cao, ch\u1eb3ng h\u1ea1n nh\u01b0 c\u00e1c d\u1ef1 \u00e1n c\u1ea7n \u0111o l\u01b0\u1eddng ch\u00ednh x\u00e1c \u0111\u1ec3 thay th\u1ebf c\u1eeda s\u1ed5, kh\u00f4ng ph\u1ea3i l\u00fac n\u00e0o c\u0169ng ph\u00f9 h\u1ee3p. Kh\u00e1ch h\u00e0ng th\u01b0\u1eddng k\u1ef3 v\u1ecdng \u0111\u1ed9 ch\u00ednh x\u00e1c trong kho\u1ea3ng \u00b110 mm, \u0111i\u1ec1u m\u00e0 ch\u00fang t\u00f4i kh\u00f4ng th\u1ec3 \u0111\u1ea3m b\u1ea3o do h\u1ea1n ch\u1ebf c\u1ee7a d\u1eef li\u1ec7u \u0111\u1ea7u v\u00e0o v\u00e0 thi\u1ebft b\u1ecb.<\/p>\n<p>H\u01a1n n\u1eefa, vi\u1ec7c k\u1ebft h\u1ee3p d\u1eef li\u1ec7u t\u1eeb m\u00e1y qu\u00e9t di \u0111\u1ed9ng, m\u00e1y qu\u00e9t m\u1eb7t \u0111\u1ea5t v\u00e0 photogrammetry t\u1eeb drone c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn c\u00e1c v\u1ea5n \u0111\u1ec1 t\u00edch h\u1ee3p ph\u1ee9c t\u1ea1p. D\u00f9 s\u1ea3n ph\u1ea9m cu\u1ed1i c\u00f9ng c\u00f3 th\u1ec3 tr\u00f4ng nh\u01b0 m\u1ed9t m\u00f4 h\u00ecnh 3D \u0111\u1ed3ng nh\u1ea5t, ph\u00e2n t\u00edch s\u00e2u h\u01a1n th\u01b0\u1eddng cho th\u1ea5y s\u1ef1 kh\u00f4ng nh\u1ea5t qu\u00e1n do c\u00e1c m\u1ee9c \u0111\u1ed9 ch\u00ednh x\u00e1c kh\u00e1c nhau gi\u1eefa c\u00e1c ngu\u1ed3n d\u1eef li\u1ec7u. Trong c\u00e1c d\u1ef1 \u00e1n l\u1edbn tr\u00ean 200.000 m\u00b2, nh\u1eefng v\u1ea5n \u0111\u1ec1 n\u00e0y tr\u1edf n\u00ean \u0111\u1eb7c bi\u1ec7t r\u00f5 r\u00e0ng v\u00e0 \u0111\u1ed9 ch\u00ednh x\u00e1c c\u00f3 th\u1ec3 b\u1ecb \u1ea3nh h\u01b0\u1edfng nghi\u00eam tr\u1ecdng. Trong nh\u1eefng tr\u01b0\u1eddng h\u1ee3p n\u00e0y, chuy\u00ean m\u00f4n v\u00e0 kinh nghi\u1ec7m c\u1ee7a k\u1ef9 s\u01b0 \u0111o \u0111\u1ea1c l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh t\u1eadp d\u1eef li\u1ec7u ch\u00ednh x\u00e1c nh\u1ea5t v\u00e0 s\u1eed d\u1ee5ng n\u00f3 l\u00e0m c\u01a1 s\u1edf cho qu\u00e1 tr\u00ecnh c\u0103n ch\u1ec9nh.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Ket_luan\"><\/span>K\u1ebft lu\u1eadn<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Vi\u1ec7c t\u1ea1o ra m\u1ed9t m\u00f4 h\u00ecnh 3D BIM ch\u00ednh x\u00e1c t\u1eeb d\u1eef li\u1ec7u Point Cloud, \u0111\u1eb7c bi\u1ec7t l\u00e0 \u0111\u1ed1i v\u1edbi c\u00e1c d\u1ef1 \u00e1n l\u1edbn, y\u00eau c\u1ea7u s\u1ef1 tham gia c\u1ee7a k\u1ef9 s\u01b0 \u0111o \u0111\u1ea1c, ng\u01b0\u1eddi c\u00f3 th\u1ec3 \u0111\u1ea3m b\u1ea3o r\u1eb1ng Point Cloud l\u00e0 ch\u00ednh x\u00e1c v\u00e0 nh\u1ea5t qu\u00e1n. \u0110\u00e2y l\u00e0 n\u1ec1n t\u1ea3ng cho c\u00e1c quy tr\u00ecnh c\u00f3 \u0111\u1ed9 ch\u00ednh x\u00e1c cao ti\u1ebfp theo. C\u00e1c c\u00f4ng ty \u0111o \u0111\u1ea1c c\u00f3 \u0111\u1ed9i ng\u0169 CAD n\u1ed9i b\u1ed9 nh\u1eadn ra t\u1ea7m quan tr\u1ecdng c\u1ee7a \u0111i\u1ec1u n\u00e0y v\u00e0 hi\u1ec3u r\u1eb1ng vi\u1ec7c gia c\u00f4ng c\u00f4ng vi\u1ec7c v\u1ebd c\u00f3 th\u1ec3 l\u00e0 r\u1ee7i ro n\u1ebfu c\u00f4ng ty CAD kh\u00f4ng c\u00f3 kh\u1ea3 n\u0103ng s\u1eeda l\u1ed7i Point Cloud.<\/p>\n<p>Hy v\u1ecdng r\u1eb1ng b\u00e0i vi\u1ebft n\u00e0y s\u1ebd gi\u00fap b\u1ea1n nh\u1eadn di\u1ec7n nh\u1eefng v\u1ea5n \u0111\u1ec1 ti\u1ec1m \u1ea9n trong c\u00e1c d\u1ef1 \u00e1n y\u00eau c\u1ea7u \u0111\u1ed9 ch\u00ednh x\u00e1c cao, \u0111\u1eb7c bi\u1ec7t l\u00e0 nh\u1eefng d\u1ef1 \u00e1n li\u00ean quan \u0111\u1ebfn nhi\u1ec1u ph\u01b0\u01a1ng ph\u00e1p \u0111o \u0111\u1ea1c. N\u1ebfu b\u1ea1n gia c\u00f4ng c\u00e1c d\u1ef1 \u00e1n nh\u01b0 v\u1eady cho m\u1ed9t \u0111\u1ed9i ng\u0169 CAD b\u00ean ngo\u00e0i, \u0111i\u1ec1u quan tr\u1ecdng l\u00e0 nh\u1eafc nh\u1edf h\u1ecd th\u01b0\u1eddng xuy\u00ean b\u00e1o c\u00e1o ngay l\u1eadp t\u1ee9c b\u1ea5t k\u1ef3 l\u1ed7i Point Cloud n\u00e0o v\u00e0 kh\u00f4ng c\u1ed1 g\u1eafng t\u1ef1 gi\u1ea3i quy\u1ebft ch\u00fang.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Hoi_dap\"><\/span>H\u1ecfi \u0111\u00e1p<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n<div id=\"rank-math-faq\" class=\"rank-math-block\">\n<ol class=\"rank-math-list \">\n<li id=\"faq-question-1725875413835\" class=\"rank-math-list-item\">\n<h4 class=\"rank-math-question \">T\u1ea1i sao k\u1ef9 s\u01b0 \u0111o \u0111\u1ea1c l\u00e0 m\u1ed9t ph\u1ea7n kh\u00f4ng th\u1ec3 thi\u1ebfu trong c\u00e1c d\u1ef1 \u00e1n Point Cloud to BIM?<\/h4>\n<div class=\"rank-math-answer \">\n\n<p>K\u1ef9 s\u01b0 \u0111o \u0111\u1ea1c \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c ki\u1ec3m tra v\u00e0 s\u1eeda ch\u1eefa t\u1ea5t c\u1ea3 c\u00e1c Point Cloud tr\u01b0\u1edbc khi chuy\u1ec3n \u0111\u1ed5i sang m\u00f4 h\u00ecnh 3D BIM. H\u1ecd \u0111\u1ea3m b\u1ea3o r\u1eb1ng Point Cloud l\u00e0 ch\u00ednh x\u00e1c v\u00e0 nh\u1ea5t qu\u00e1n, t\u1ea1o n\u1ec1n t\u1ea3ng cho quy tr\u00ecnh ti\u1ebfp theo c\u00f3 \u0111\u1ed9 ch\u00ednh x\u00e1c cao.<\/p>\n\n<\/div>\n<\/li>\n<li id=\"faq-question-1725875440428\" class=\"rank-math-list-item\">\n<h4 class=\"rank-math-question \">Nh\u1eefng th\u00e1ch th\u1ee9c n\u00e0o khi x\u1eed l\u00fd Point Cloud trong c\u00e1c d\u1ef1 \u00e1n l\u1edbn?<\/h4>\n<div class=\"rank-math-answer \">\n\n<p>M\u1ed9t trong nh\u1eefng th\u00e1ch th\u1ee9c l\u1edbn l\u00e0 s\u1ef1 kh\u00f4ng nh\u1ea5t qu\u00e1n gi\u1eefa c\u00e1c ngu\u1ed3n d\u1eef li\u1ec7u nh\u01b0 m\u00e1y qu\u00e9t di \u0111\u1ed9ng, m\u00e1y qu\u00e9t m\u1eb7t \u0111\u1ea5t v\u00e0 photogrammetry t\u1eeb drone. \u0110i\u1ec1u n\u00e0y g\u00e2y kh\u00f3 kh\u0103n trong vi\u1ec7c c\u0103n ch\u1ec9nh v\u00e0 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a m\u00f4 h\u00ecnh BIM cu\u1ed1i c\u00f9ng.<\/p>\n\n<\/div>\n<\/li>\n<li id=\"faq-question-1725875459715\" class=\"rank-math-list-item\">\n<h4 class=\"rank-math-question \">\u0110i\u1ec3m kh\u00e1c bi\u1ec7t gi\u1eefa c\u00e1c c\u00f4ng ngh\u1ec7 qu\u00e9t di \u0111\u1ed9ng v\u00e0 qu\u00e9t m\u1eb7t \u0111\u1ea5t trong d\u1ef1 \u00e1n BIM l\u00e0 g\u00ec?<\/h4>\n<div class=\"rank-math-answer \">\n\n<p>M\u00e1y qu\u00e9t di \u0111\u1ed9ng (Mobile Laser Scanning) mang l\u1ea1i s\u1ef1 ti\u1ec7n l\u1ee3i v\u00e0 t\u1ed1c \u0111\u1ed9 trong vi\u1ec7c thu th\u1eadp d\u1eef li\u1ec7u tr\u00ean di\u1ec7n r\u1ed9ng, nh\u01b0ng kh\u00f4ng ph\u00f9 h\u1ee3p cho c\u00e1c d\u1ef1 \u00e1n \u0111\u00f2i h\u1ecfi \u0111\u1ed9 ch\u00ednh x\u00e1c cao nh\u01b0 s\u1eed d\u1ee5ng ch\u00ednh x\u00e1c \u0111\u1ec3 thay th\u1ebf c\u1eeda s\u1ed5. M\u00e1y qu\u00e9t m\u1eb7t \u0111\u1ea5t(terrestrial scanner) c\u00f3 \u0111\u1ed9 ch\u00ednh x\u00e1c cao h\u01a1n, ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c y\u00eau c\u1ea7u n\u00e0y.<\/p>\n\n<\/div>\n<\/li>\n<li id=\"faq-question-1725875626335\" class=\"rank-math-list-item\">\n<h4 class=\"rank-math-question \">T\u1ea1i sao vi\u1ec7c ki\u1ec3m tra v\u00e0 s\u1eeda ch\u1eefa Point Cloud v\u1eabn l\u00e0 b\u01b0\u1edbc quan tr\u1ecdng d\u00f9 c\u00f4ng ngh\u1ec7 \u0111\u00e3 ti\u1ebfn b\u1ed9?<\/h4>\n<div class=\"rank-math-answer \">\n\n<p>M\u1eb7c d\u00f9 c\u00f4ng ngh\u1ec7 \u0111\u00e3 ti\u1ebfn b\u1ed9, nh\u01b0ng Point Cloud v\u1eabn c\u00f3 th\u1ec3 ch\u1ee9a sai l\u1ec7ch nh\u1ecf. Vi\u1ec7c ki\u1ec3m tra k\u1ef9 l\u01b0\u1ee1ng v\u00e0 s\u1eeda ch\u1eefa Point Cloud b\u1edfi k\u1ef9 s\u01b0 \u0111o \u0111\u1ea1c gi\u00fap \u0111\u1ea3m b\u1ea3o r\u1eb1ng nh\u1eefng sai l\u1ec7ch n\u00e0y kh\u00f4ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn m\u00f4 h\u00ecnh BIM cu\u1ed1i c\u00f9ng.<\/p>\n\n<\/div>\n<\/li>\n<li id=\"faq-question-1725875648193\" class=\"rank-math-list-item\">\n<h4 class=\"rank-math-question \">Nh\u1eefng sai l\u1ec7ch nh\u1ecf trong Point Cloud c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng th\u1ebf n\u00e0o \u0111\u1ebfn \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a m\u00f4 h\u00ecnh 3D BIM?<\/h4>\n<div class=\"rank-math-answer \">\n\n<p>Sai l\u1ec7ch nh\u1ecf ch\u1ec9 v\u00e0i milimet trong Point Cloud c\u00f3 th\u1ec3 g\u00e2y ra s\u1ef1 kh\u00f4ng ch\u00ednh x\u00e1c trong m\u00f4 h\u00ecnh 3D BIM, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong c\u00e1c d\u1ef1 \u00e1n y\u00eau c\u1ea7u \u0111\u1ed9 ch\u00ednh x\u00e1c cao. K\u1ef9 s\u01b0 \u0111o \u0111\u1ea1c c\u1ea7n ph\u00e1t hi\u1ec7n v\u00e0 kh\u1eafc ph\u1ee5c nh\u1eefng l\u1ed7i n\u00e0y \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng cu\u1ed1i c\u00f9ng.<\/p>\n\n<\/div>\n<\/li>\n<li id=\"faq-question-1725875672412\" class=\"rank-math-list-item\">\n<h4 class=\"rank-math-question \">Nh\u1eefng th\u00e1ch th\u1ee9c ch\u00ednh m\u00e0 c\u00e1c d\u1ef1 \u00e1n l\u1edbn tr\u00ean 200.000 m\u00b2 g\u1eb7p ph\u1ea3i khi s\u1eed d\u1ee5ng Point Cloud l\u00e0 g\u00ec?<\/h4>\n<div class=\"rank-math-answer \">\n\n<p>C\u00e1c d\u1ef1 \u00e1n l\u1edbn th\u01b0\u1eddng g\u1eb7p ph\u1ea3i s\u1ef1 kh\u00f4ng \u0111\u1ed3ng nh\u1ea5t trong d\u1eef li\u1ec7u t\u1eeb nhi\u1ec1u ngu\u1ed3n kh\u00e1c nhau, d\u1eabn \u0111\u1ebfn \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a m\u00f4 h\u00ecnh BIM b\u1ecb \u1ea3nh h\u01b0\u1edfng. \u0110\u00e2y l\u00e0 l\u00fd do t\u1ea1i sao vai tr\u00f2 c\u1ee7a k\u1ef9 s\u01b0 \u0111o \u0111\u1ea1c trong vi\u1ec7c x\u1eed l\u00fd v\u00e0 c\u0103n ch\u1ec9nh d\u1eef li\u1ec7u l\u00e0 r\u1ea5t quan tr\u1ecdng.<\/p>\n\n<\/div>\n<\/li>\n<\/ol>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Vai tr\u00f2 quan tr\u1ecdng c\u1ee7a k\u1ef9 s\u01b0 \u0111o \u0111\u1ea1c trong \u0111\u1ed9i ng\u0169 BIM t\u1eeb point cloud, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong c\u00e1c d\u1ef1 \u00e1n l\u1edbn. H\u1ecd \u0111\u1ea3m b\u1ea3o r\u1eb1ng Point Cloud ch\u00ednh x\u00e1c v\u00e0 nh\u1ea5t qu\u00e1n, [&#8230;]<\/p>\n","protected":false},"author":2,"featured_media":26690,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[91,132,414,452],"tags":[],"class_list":["post-26664","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-khao-sat-hien-trang-3d-laser","category-mo-hinh-hoa-3d-bim-tu-point-cloud","category-punktwolke-zu-bim-vi","category-highlight"],"acf":[],"_links":{"self":[{"href":"https:\/\/vmts.ch\/vi\/wp-json\/wp\/v2\/posts\/26664","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vmts.ch\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vmts.ch\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vmts.ch\/vi\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/vmts.ch\/vi\/wp-json\/wp\/v2\/comments?post=26664"}],"version-history":[{"count":0,"href":"https:\/\/vmts.ch\/vi\/wp-json\/wp\/v2\/posts\/26664\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vmts.ch\/vi\/wp-json\/wp\/v2\/media\/26690"}],"wp:attachment":[{"href":"https:\/\/vmts.ch\/vi\/wp-json\/wp\/v2\/media?parent=26664"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vmts.ch\/vi\/wp-json\/wp\/v2\/categories?post=26664"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vmts.ch\/vi\/wp-json\/wp\/v2\/tags?post=26664"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}