{"id":94744,"date":"2025-06-28T21:28:04","date_gmt":"2025-06-28T21:28:04","guid":{"rendered":"https:\/\/crismob.com\/?p=94744"},"modified":"2026-08-18T19:38:10","modified_gmt":"2026-08-18T19:38:10","slug":"kham-pha-nhung-ung-dung-thuoc-day-mien-phi-tot-nhat","status":"publish","type":"post","link":"https:\/\/crismob.com\/vi_eu\/descubra-os-melhores-aplicativos-de-trena-gratis\/","title":{"rendered":"\u1ee8ng d\u1ee5ng th\u01b0\u1edbc d\u00e2y mi\u1ec5n ph\u00ed: C\u00f4ng ngh\u1ec7 th\u1ef1c t\u1ebf t\u0103ng c\u01b0\u1eddng \u0111o l\u01b0\u1eddng nh\u1eefng g\u00ec?"},"content":{"rendered":"<p class=\"wp-block-paragraph\">\u1ee8ng d\u1ee5ng th\u01b0\u1edbc d\u00e2y l\u00e0 m\u1ed9t trong nh\u1eefng tr\u01b0\u1eddng h\u1ee3p m\u00e0 l\u1eddi h\u1ee9a v\u00e0 th\u1ef1c t\u1ebf g\u1ea7n nh\u01b0 tr\u00f9ng kh\u1edbp\u2014nh\u01b0ng kh\u00f4ng ho\u00e0n to\u00e0n. Ch\u00fang c\u00f3 ch\u1ee9c n\u0103ng \u0111o, \u0111\u00fang v\u1eady. Ch\u1ec9 l\u00e0 ch\u00fang kh\u00f4ng \u0111o ch\u00ednh x\u00e1c nh\u01b0 th\u01b0\u1edbc d\u00e2y laser, v\u00e0 \u0111i\u1ec1u \u0111\u00e1ng hi\u1ec3u l\u00e0 t\u1ea1i sao tr\u01b0\u1edbc khi tin t\u01b0\u1edfng v\u00e0o con s\u1ed1 hi\u1ec3n th\u1ecb tr\u00ean m\u00e0n h\u00ecnh \u0111\u1ec3 quy\u1ebft \u0111\u1ecbnh c\u1eaft v\u1eadt li\u1ec7u.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u0110i\u1ec7n tho\u1ea1i di \u0111\u1ed9ng \u0111o kho\u1ea3ng c\u00e1ch nh\u01b0 th\u1ebf n\u00e0o m\u00e0 kh\u00f4ng c\u1ea7n tia laser?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Th\u01b0\u1edbc d\u00e2y laser \u0111o th\u1eddi gian bay: ch\u00fang ph\u00e1t ra m\u1ed9t ch\u00f9m tia, \u0111o th\u1eddi gian tia quay tr\u1edf l\u1ea1i v\u00e0 chuy\u1ec3n \u0111\u1ed5i th\u00e0nh kho\u1ea3ng c\u00e1ch. \u0110i\u1ec1u n\u00e0y \u0111\u00f2i h\u1ecfi <strong>ph\u1ea7n c\u1ee9ng c\u1ee5 th\u1ec3<\/strong>, \u0111i\u1ec1u m\u00e0 ph\u1ea7n l\u1edbn \u0111i\u1ec7n tho\u1ea1i di \u0111\u1ed9ng hi\u1ec7n nay kh\u00f4ng c\u00f3.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ch\u1ee9c n\u0103ng c\u1ee7a \u0111i\u1ec7n tho\u1ea1i di \u0111\u1ed9ng l\u00e0 g\u00ec? <strong>th\u1ef1c t\u1ebf t\u0103ng c\u01b0\u1eddng<\/strong>. S\u1eed d\u1ee5ng camera v\u00e0 c\u1ea3m bi\u1ebfn chuy\u1ec3n \u0111\u1ed9ng, h\u1ec7 th\u1ed1ng ARCore tr\u00ean Android v\u00e0 ARKit tr\u00ean iPhone x\u00e1c \u0111\u1ecbnh c\u00e1c \u0111i\u1ec3m \u0111\u1eb7c tr\u01b0ng trong m\u00f4i tr\u01b0\u1eddng v\u00e0 theo d\u00f5i chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a ch\u00fang trong h\u00ecnh \u1ea3nh khi b\u1ea1n di chuy\u1ec3n thi\u1ebft b\u1ecb. T\u1eeb chuy\u1ec3n \u0111\u1ed9ng n\u00e0y, ph\u1ea7n m\u1ec1m t\u00e1i t\u1ea1o h\u00ecnh h\u1ecdc c\u1ee7a c\u1ea3nh v\u00e0 \u01b0\u1edbc t\u00ednh kho\u1ea3ng c\u00e1ch. \u0110\u00f3 l\u00e0 ph\u00e9p tam gi\u00e1c h\u00f3a th\u1eddi gian th\u1ef1c, ch\u1ee9 kh\u00f4ng ph\u1ea3i ph\u00e9p \u0111o tr\u1ef1c ti\u1ebfp.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t s\u1ed1 thi\u1ebft b\u1ecb cao c\u1ea5p c\u00f3 c\u1ea3m bi\u1ebfn \u0111\u1ed9 s\u00e2u, ch\u1eb3ng h\u1ea1n nh\u01b0 LiDAR ho\u1eb7c ToF, v\u00e0 trong nh\u1eefng tr\u01b0\u1eddng h\u1ee3p n\u00e0y, k\u1ebft qu\u1ea3 s\u1ebd ch\u00ednh x\u00e1c h\u01a1n nhi\u1ec1u. Nh\u01b0ng \u0111\u00f3 v\u1eabn ch\u1ec9 l\u00e0 m\u1ed9t \u01b0\u1edbc t\u00ednh.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Sai l\u1ea7m b\u1ea1n n\u00ean l\u01b0\u1eddng tr\u01b0\u1edbc<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Trong \u0111i\u1ec1u ki\u1ec7n t\u1ed1t \u2014 m\u00f4i tr\u01b0\u1eddng \u0111\u1ee7 \u00e1nh s\u00e1ng, b\u1ec1 m\u1eb7t c\u00f3 k\u1ebft c\u1ea5u, kho\u1ea3ng c\u00e1ch ng\u1eafn \u2014 c\u00e1c ph\u00e9p \u0111o th\u1ef1c t\u1ebf t\u0103ng c\u01b0\u1eddng th\u01b0\u1eddng c\u00f3 sai s\u1ed1 ch\u1ec9 v\u00e0i centimet. Sai s\u1ed1 t\u0103ng l\u00ean khi:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Kho\u1ea3ng c\u00e1ch.<\/strong> \u0110i\u1ec3m c\u00e0ng \u1edf xa th\u00ec \u0111\u1ed9 l\u1ec7ch t\u00edch l\u0169y c\u00e0ng l\u1edbn.<\/li>\n<li><strong>\u00c1nh s\u00e1ng y\u1ebfu.<\/strong> Camera c\u1ea7n nh\u00ecn th\u1ea5y k\u1ebft c\u1ea5u b\u1ec1 m\u1eb7t \u0111\u1ec3 theo d\u00f5i c\u00e1c \u0111i\u1ec3m. Trong b\u00f3ng t\u1ed1i, kh\u1ea3 n\u0103ng theo d\u00f5i s\u1ebd b\u1ecb m\u1ea5t.<\/li>\n<li><strong>B\u1ec1 m\u1eb7t nh\u1eb5n v\u00e0 \u0111\u1ed3ng nh\u1ea5t.<\/strong> Nh\u1eefng b\u1ee9c t\u01b0\u1eddng tr\u1eafng tr\u01a1n, k\u00ednh v\u00e0 g\u01b0\u01a1ng l\u00e0m r\u1ed1i lo\u1ea1n h\u1ec7 th\u1ed1ng.<\/li>\n<li><strong>Chuy\u1ec3n \u0111\u1ed9ng \u0111\u1ed9t ng\u1ed9t.<\/strong> L\u1eafc thi\u1ebft b\u1ecb s\u1ebd l\u00e0m gi\u00e1n \u0111o\u1ea1n qu\u00e1 tr\u00ecnh theo d\u00f5i v\u00e0 bu\u1ed9c b\u1ea1n ph\u1ea3i b\u1eaft \u0111\u1ea7u l\u1ea1i t\u1eeb \u0111\u1ea7u.<\/li>\n<li><strong>Thi\u1ebfu b\u01b0\u1edbc hi\u1ec7u chu\u1ea9n ban \u0111\u1ea7u.<\/strong> H\u1ea7u h\u1ebft c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u1ec1u y\u00eau c\u1ea7u b\u1ea1n di chuy\u1ec3n \u0111i\u1ec7n tho\u1ea1i ch\u1eadm r\u00e3i trong v\u00e0i gi\u00e2y tr\u01b0\u1edbc khi \u0111o. B\u1ecf qua b\u01b0\u1edbc n\u00e0y l\u00e0 nguy\u00ean nh\u00e2n ph\u1ed5 bi\u1ebfn nh\u1ea5t d\u1eabn \u0111\u1ebfn k\u1ebft qu\u1ea3 kh\u00f4ng ch\u00ednh x\u00e1c.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Th\u01b0\u1edbc d\u00e2y \u0111i\u1ec7n t\u1eed ph\u00e1t huy t\u00e1c d\u1ee5ng t\u1ed1t \u1edf \u0111\u00e2u?<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Tr\u01b0\u1edbc khi mua, h\u00e3y ki\u1ec3m tra xem m\u00f3n \u0111\u1ed3 n\u1ed9i th\u1ea5t \u0111\u00f3 c\u00f3 v\u1eeba v\u1edbi kh\u00f4ng gian hay kh\u00f4ng.<\/li>\n<li>Thu th\u1eadp k\u00edch th\u01b0\u1edbc g\u1ea7n \u0111\u00fang c\u1ee7a c\u0103n ph\u00f2ng \u0111\u1ec3 l\u1eadp thi\u1ebft k\u1ebf ban \u0111\u1ea7u.<\/li>\n<li>T\u00ednh to\u00e1n di\u1ec7n t\u00edch c\u1ea7n thi\u1ebft \u0111\u1ec3 d\u1ef1 tr\u00f9 kinh ph\u00ed cho s\u00e0n nh\u00e0, s\u01a1n ho\u1eb7c gi\u1ea5y d\u00e1n t\u01b0\u1eddng \u2014 c\u1ed9ng th\u00eam m\u1ed9t kho\u1ea3n d\u1ef1 ph\u00f2ng.<\/li>\n<li>\u0110o nh\u1eefng v\u1eadt \u1edf ngo\u00e0i t\u1ea7m v\u1edbi, v\u00ed d\u1ee5 nh\u01b0 chi\u1ec1u cao tr\u1ea7n nh\u00e0, n\u01a1i m\u00e0 th\u01b0\u1edbc d\u00e2y th\u00f4ng th\u01b0\u1eddng kh\u00f4ng th\u1ec3 \u0111o t\u1edbi.<\/li>\n<li>Ghi l\u1ea1i s\u1ed1 \u0111o v\u00e0 ch\u1ee5p \u1ea3nh \u0111\u1ec3 g\u1eedi cho ng\u01b0\u1eddi kh\u00e1c.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Trong tr\u01b0\u1eddng h\u1ee3p n\u00f3 kh\u00f4ng gi\u1ea3i quy\u1ebft \u0111\u01b0\u1ee3c v\u1ea5n \u0111\u1ec1.<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>V\u1eadt li\u1ec7u c\u1eaft.<\/strong> C\u00e1c c\u00f4ng vi\u1ec7c li\u00ean quan \u0111\u1ebfn \u0111\u1ed3 g\u1ed7, k\u00ednh v\u00e0 m\u1eb7t b\u00e0n \u0111\u00f2i h\u1ecfi \u0111\u1ed9 ch\u00ednh x\u00e1c \u0111\u1ebfn t\u1eebng milimet. H\u00e3y s\u1eed d\u1ee5ng th\u01b0\u1edbc d\u00e2y v\u1eadt l\u00fd.<\/li>\n<li><strong>L\u1eafp \u0111\u1eb7t theo y\u00eau c\u1ea7u.<\/strong> C\u1eeda ra v\u00e0o, c\u1eeda s\u1ed5 v\u00e0 t\u1ee7 b\u1ebfp thi\u1ebft k\u1ebf ri\u00eang \u0111\u1ec1u \u0111\u01b0\u1ee3c l\u00e0m r\u1ea5t t\u1ec9 m\u1ec9, kh\u00f4ng h\u1ec1 ti\u1ebft ki\u1ec7m t\u1eebng centimet.<\/li>\n<li><strong>T\u00e0i li\u1ec7u v\u00e0 thi\u1ebft k\u1ebf chi ti\u1ebft.<\/strong> Vi\u1ec7c \u0111o l\u01b0\u1eddng c\u00f3 gi\u00e1 tr\u1ecb k\u1ef9 thu\u1eadt \u0111\u1ebfn t\u1eeb thi\u1ebft b\u1ecb ph\u00f9 h\u1ee3p.<\/li>\n<li><strong>\u0110\u1ea5t \u0111ai v\u00e0 bi\u00ean gi\u1edbi.<\/strong> \u0110\u00e2y l\u00e0 m\u1ed9t v\u1ea5n \u0111\u1ec1 kh\u00e1c, \u0111\u01b0\u1ee3c gi\u1ea3i quy\u1ebft b\u1eb1ng GPS v\u1edbi sai s\u1ed1 v\u00e0i m\u00e9t ho\u1eb7c, khi ph\u00e1p lu\u1eadt y\u00eau c\u1ea7u, b\u1edfi m\u1ed9t chuy\u00ean gia c\u00f3 tr\u00ecnh \u0111\u1ed9.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">C\u00e1c \u1ee9ng d\u1ee5ng th\u1ef1c s\u1ef1 t\u1ed3n t\u1ea1i<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t l\u1eddi c\u1ea3nh b\u00e1o: \u1ee9ng d\u1ee5ng <strong>\u0110o l\u01b0\u1eddng<\/strong>, T\u1eeb ch\u00ednh Google, \u0111\u00f3 l\u00e0 <strong>ng\u1eebng ho\u1ea1t \u0111\u1ed9ng<\/strong> S\u1ea3n ph\u1ea9m n\u00e0y hi\u1ec7n kh\u00f4ng c\u00f2n b\u00e1n \u1edf c\u00e1c c\u1eeda h\u00e0ng. Nhi\u1ec1u t\u00e0i li\u1ec7u c\u0169 v\u1eabn khuy\u00ean d\u00f9ng. Trong s\u1ed1 c\u00e1c l\u1ef1a ch\u1ecdn hi\u1ec7n c\u00f3:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Th\u01b0\u1edbc \u0111o k\u00edch th\u01b0\u1edbc \u2014 Th\u01b0\u1edbc RA<\/strong>\u1ee8ng d\u1ee5ng n\u00e0y \u0111o chi\u1ec1u d\u00e0i, di\u1ec7n t\u00edch v\u00e0 th\u1ec3 t\u00edch b\u1eb1ng c\u00f4ng ngh\u1ec7 th\u1ef1c t\u1ebf t\u0103ng c\u01b0\u1eddng, \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 cao v\u00e0 nh\u1eadn \u0111\u01b0\u1ee3c h\u00e0ng tr\u0103m ngh\u00ecn \u0111\u00e1nh gi\u00e1 t\u00edch c\u1ef1c.<\/li>\n<li><strong>AR Plan 3D<\/strong>N\u00f3 kh\u00f4ng ch\u1ec9 th\u1ef1c hi\u1ec7n c\u00e1c ph\u00e9p \u0111o ri\u00eang l\u1ebb m\u00e0 c\u00f2n t\u1ea1o ra b\u1ea3n v\u1ebd m\u1eb7t b\u1eb1ng c\u1ee7a c\u0103n ph\u00f2ng v\u00e0 xu\u1ea5t k\u1ebft qu\u1ea3 ra.<\/li>\n<li><strong>M\u00e1y \u0111o kho\u1ea3ng c\u00e1ch \u2014 C\u00f4ng c\u1ee5 \u0111o th\u00f4ng minh<\/strong>\u1ee8ng d\u1ee5ng n\u00e0y s\u1eed d\u1ee5ng l\u01b0\u1ee3ng gi\u00e1c thay v\u00ec th\u1ef1c t\u1ebf t\u0103ng c\u01b0\u1eddng. B\u1ea1n h\u01b0\u1edbng camera v\u00e0o ch\u00e2n v\u1eadt th\u1ec3, v\u00e0 \u1ee9ng d\u1ee5ng s\u1ebd t\u00ednh to\u00e1n kho\u1ea3ng c\u00e1ch d\u1ef1a tr\u00ean \u0111\u1ed9 nghi\u00eang c\u1ee7a thi\u1ebft b\u1ecb. \u1ee8ng d\u1ee5ng ho\u1ea1t \u0111\u1ed9ng t\u1ed1t nh\u1ea5t trong m\u00f4i tr\u01b0\u1eddng r\u1ed9ng r\u00e3i v\u00e0 v\u1edbi c\u00e1c v\u1eadt th\u1ec3 l\u1edbn, v\u00e0 ph\u1ee5 thu\u1ed9c v\u00e0o vi\u1ec7c b\u1ea1n ch\u1ec9 \u0111\u1ecbnh \u0111\u1ed9 cao khi c\u1ea7m \u0111i\u1ec7n tho\u1ea1i.<\/li>\n<li><strong>Th\u01b0\u1edbc \u0111o m\u00e0n h\u00ecnh<\/strong>C\u00e1c thi\u1ebft b\u1ecb n\u00e0y m\u00f4 ph\u1ecfng m\u1ed9t th\u01b0\u1edbc \u0111o v\u1eadt l\u00fd tr\u00ean m\u00e0n h\u00ecnh \u0111\u1ec3 \u0111o c\u00e1c v\u1eadt th\u1ec3 nh\u1ecf. Ch\u00fang c\u1ea7n \u0111\u01b0\u1ee3c hi\u1ec7u chu\u1ea9n b\u1eb1ng m\u1ed9t v\u1eadt c\u00f3 k\u00edch th\u01b0\u1edbc \u0111\u00e3 bi\u1ebft, v\u00e0 \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a ch\u00fang ph\u1ee5 thu\u1ed9c v\u00e0o qu\u00e1 tr\u00ecnh hi\u1ec7u chu\u1ea9n n\u00e0y.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 \u0111o l\u01b0\u1eddng t\u1ed1t h\u01a1n<\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Th\u1ef1c hi\u1ec7n hi\u1ec7u ch\u1ec9nh ban \u0111\u1ea7u m\u1ed9t c\u00e1ch b\u00ecnh t\u0129nh, di chuy\u1ec3n \u0111i\u1ec7n tho\u1ea1i ch\u1eadm r\u00e3i cho \u0111\u1ebfn khi \u1ee9ng d\u1ee5ng nh\u1eadn di\u1ec7n \u0111\u01b0\u1ee3c k\u1ebf ho\u1ea1ch.<\/li>\n<li>H\u00e3y b\u1eadt \u0111\u00e8n l\u00ean. M\u00f4i tr\u01b0\u1eddng s\u00e1ng s\u1ee7a gi\u00fap c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng theo d\u00f5i h\u01a1n b\u1ea5t k\u1ef3 \u0111i\u1ec1u ki\u1ec7n n\u00e0o kh\u00e1c.<\/li>\n<li>Thay v\u00ec \u0111o m\u1ed9t \u0111o\u1ea1n d\u00e0i li\u00ean t\u1ee5c, h\u00e3y \u0111o theo t\u1eebng \u0111o\u1ea1n ng\u1eafn r\u1ed3i c\u1ed9ng ch\u00fang l\u1ea1i v\u1edbi nhau.<\/li>\n<li>L\u1eb7p l\u1ea1i ph\u00e9p \u0111o hai ho\u1eb7c ba l\u1ea7n v\u00e0 so s\u00e1nh k\u1ebft qu\u1ea3. S\u1ef1 ch\u00eanh l\u1ec7ch l\u1edbn cho th\u1ea5y k\u1ebft qu\u1ea3 \u0111o kh\u00f4ng ch\u00ednh x\u00e1c.<\/li>\n<li>H\u00e3y ch\u1eeba th\u00eam m\u1ed9t kho\u1ea3ng tr\u1ed1ng khi mua v\u1eadt li\u1ec7u: th\u00eam v\u00e0i centimet s\u1ebd t\u1ed1n \u00edt chi ph\u00ed h\u01a1n so v\u1edbi vi\u1ec7c \u0111\u1eb7t h\u00e0ng l\u1ea1i.<\/li>\n<li>\u0110\u1ed1i v\u1edbi b\u1ea5t c\u1ee9 v\u1eadt d\u1ee5ng n\u00e0o c\u1ea7n c\u1eaft, h\u00e3y ki\u1ec3m tra l\u1ea1i b\u1eb1ng th\u01b0\u1edbc d\u00e2y.<\/li>\n<\/ol>\n\n\n<h2>S\u1ef1 tr\u00f4i d\u1ea1t: T\u1ea1i sao sai s\u1ed1 l\u1ea1i t\u0103ng l\u00ean khi b\u1ea1n \u0111i b\u1ed9<\/h2>\n<p>\u0110\u1ec3 \u01b0\u1edbc t\u00ednh kho\u1ea3ng c\u00e1ch b\u1eb1ng camera, h\u1ec7 th\u1ed1ng c\u1ea7n bi\u1ebft v\u1ecb tr\u00ed c\u1ee7a ch\u00ednh n\u00f3. N\u00f3 th\u1ef1c hi\u1ec7n \u0111i\u1ec1u n\u00e0y t\u1eebng khung h\u00ecnh m\u1ed9t: n\u00f3 x\u00e1c \u0111\u1ecbnh c\u00e1c \u0111i\u1ec3m \u0111\u1eb7c tr\u01b0ng trong \u1ea3nh, theo d\u00f5i chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a ch\u00fang v\u00e0 k\u1ebft h\u1ee3p d\u1eef li\u1ec7u n\u00e0y v\u1edbi th\u00f4ng tin m\u00e0 gia t\u1ed1c k\u1ebf v\u00e0 con quay h\u1ed3i chuy\u1ec3n b\u00e1o c\u00e1o v\u1ec1 chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a thi\u1ebft b\u1ecb. M\u1ed7i khung h\u00ecnh k\u1ebf th\u1eeba v\u1ecb tr\u00ed \u0111\u01b0\u1ee3c t\u00ednh to\u00e1n trong khung h\u00ecnh tr\u01b0\u1edbc \u0111\u00f3.<\/p>\n<p>\u0110\u00e2y l\u00e0 ngu\u1ed3n g\u1ed1c c\u1ee7a hi\u1ec7u \u1ee9ng m\u00e0 c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t g\u1ecdi l\u00e0 &quot;sai l\u1ec7ch&quot;: nh\u1eefng sai l\u1ec7ch nh\u1ecf t\u00edch l\u0169y d\u1ea7n theo th\u1eddi gian. M\u1ed9t \u0111i\u1ec3m \u0111\u01b0\u1ee3c \u0111\u00e1nh d\u1ea5u tr\u00ean t\u01b0\u1eddng m\u01b0\u1eddi gi\u00e2y tr\u01b0\u1edbc c\u00f3 th\u1ec3 b\u1ecb l\u1ec7ch v\u00e0i centimet khi b\u1ea1n \u0111i ngang qua ph\u00f2ng. \u0110\u00e2y kh\u00f4ng ph\u1ea3i l\u00e0 l\u1ed7i c\u1ee7a \u1ee9ng d\u1ee5ng, m\u00e0 l\u00e0 b\u1ea3n ch\u1ea5t c\u1ee7a ph\u01b0\u01a1ng ph\u00e1p n\u00e0y.<\/p>\n<p>Ba h\u1ec7 qu\u1ea3 th\u1ef1c ti\u1ec5n:<\/p>\n<ul>\n<li><strong>C\u00e1c bi\u1ec7n ph\u00e1p ng\u1eafn h\u1ea1n t\u1ed1t h\u01a1n c\u00e1c bi\u1ec7n ph\u00e1p d\u00e0i h\u1ea1n.<\/strong> Vi\u1ec7c \u0111\u00e1nh d\u1ea5u hai \u0111i\u1ec3m xu\u1ea5t hi\u1ec7n c\u00f9ng nhau trong c\u00f9ng m\u1ed9t khung c\u1ea3nh s\u1ebd \u0111\u00e1ng tin c\u1eady h\u01a1n so v\u1edbi vi\u1ec7c \u0111i b\u1ed9 t\u1eeb \u0111\u1ea7u n\u00e0y \u0111\u1ebfn \u0111\u1ea7u kia trong khi v\u1eabn gi\u1eef \u0111i\u1ec3m xu\u1ea5t ph\u00e1t trong b\u1ed9 nh\u1edb c\u1ee7a thi\u1ebft b\u1ecb.<\/li>\n<li><strong>S\u1ef1 gi\u00e1n \u0111o\u1ea1n l\u00e0m gi\u00e1n \u0111o\u1ea1n qu\u00e1 tr\u00ecnh theo d\u00f5i.<\/strong> Che \u1ed1ng k\u00ednh, \u0111i qua khu v\u1ef1c t\u1ed1i, xoay ng\u01b0\u1eddi nhanh ho\u1eb7c nh\u1eadn th\u00f4ng b\u00e1o to\u00e0n m\u00e0n h\u00ecnh th\u01b0\u1eddng bu\u1ed9c b\u1ea1n ph\u1ea3i b\u1eaft \u0111\u1ea7u l\u1ea1i. N\u1ebfu \u1ee9ng d\u1ee5ng y\u00eau c\u1ea7u b\u1ea1n di chuy\u1ec3n \u0111i\u1ec7n tho\u1ea1i m\u1ed9t l\u1ea7n n\u1eefa, \u0111i\u1ec1u \u0111\u00f3 c\u00f3 ngh\u0129a l\u00e0 n\u00f3 \u0111\u00e3 m\u1ea5t \u0111i\u1ec3m tham chi\u1ebfu.<\/li>\n<li><strong>C\u00f3 b\u1ed9 x\u00e9t nghi\u1ec7m t\u1ea1i nh\u00e0.<\/strong> \u0110\u00e1nh d\u1ea5u m\u1ed9t \u0111i\u1ec3m, \u0111i b\u1ed9 quanh ph\u00f2ng, r\u1ed3i quay l\u1ea1i v\u00e0 nh\u00ecn v\u00e0o c\u00f9ng m\u1ed9t v\u1ecb tr\u00ed. N\u1ebfu \u0111i\u1ec3m \u0111\u00e1nh d\u1ea5u \u1ea3o kh\u00f4ng c\u00f2n \u1edf v\u1ecb tr\u00ed b\u1ea1n \u0111\u00e3 \u0111\u00e1nh d\u1ea5u tr\u01b0\u1edbc \u0111\u00f3, th\u00ec phi\u00ean \u0111\u00f3 kh\u00f4ng c\u00f2n ph\u00f9 h\u1ee3p \u0111\u1ec3 \u0111o l\u01b0\u1eddng l\u00e2u d\u00e0i n\u1eefa.<\/li>\n<\/ul>\n\n<h2>C\u1ea3m bi\u1ebfn \u0111\u1ed9 s\u00e2u: \u0110i\u1ec1u g\u00ec thay \u0111\u1ed5i khi s\u1eed d\u1ee5ng LiDAR ho\u1eb7c ToF?<\/h2>\n<p>Trong c\u00e1c thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c trang b\u1ecb c\u1ea3m bi\u1ebfn \u0111\u1ed9 s\u00e2u, nguy\u00ean l\u00fd kh\u00f4ng c\u00f2n d\u1ef1a tr\u00ean suy lu\u1eadn h\u00ecnh \u1ea3nh n\u1eefa. C\u1ea3m bi\u1ebfn ph\u00e1t ra c\u00e1c xung \u00e1nh s\u00e1ng h\u1ed3ng ngo\u1ea1i v\u00e0 \u0111o th\u1eddi gian ch\u00fang quay tr\u1edf l\u1ea1i \u0111\u1ed3ng th\u1eddi t\u1ea1i nhi\u1ec1u \u0111i\u1ec3m kh\u00e1c nhau trong khung c\u1ea3nh, t\u1eeb \u0111\u00f3 x\u00e2y d\u1ef1ng b\u1ea3n \u0111\u1ed3 kho\u1ea3ng c\u00e1ch. \u0110\u00e2y l\u00e0 ph\u00e9p \u0111o tr\u1ef1c ti\u1ebfp, v\u00e0 s\u1ef1 kh\u00e1c bi\u1ec7t th\u1ec3 hi\u1ec7n r\u00f5 trong th\u1ef1c t\u1ebf: n\u00f3 ho\u1ea1t \u0111\u1ed9ng t\u1ed1t trong m\u00f4i tr\u01b0\u1eddng thi\u1ebfu s\u00e1ng, t\u00ecm th\u1ea5y b\u1ec1 m\u1eb7t nhanh h\u01a1n v\u00e0 \u00edt ph\u1ee5 thu\u1ed9c v\u00e0o k\u1ebft c\u1ea5u t\u01b0\u1eddng.<\/p>\n<p>\u0110i\u1ec1u n\u00e0y kh\u00f4ng bi\u1ebfn \u0111i\u1ec7n tho\u1ea1i di \u0111\u1ed9ng c\u1ee7a b\u1ea1n th\u00e0nh th\u01b0\u1edbc \u0111o laser d\u00f9ng trong x\u00e2y d\u1ef1ng. Nh\u1eefng h\u1ea1n ch\u1ebf v\u1eabn r\u1ea5t r\u00f5 r\u00e0ng:<\/p>\n<ul>\n<li><strong>T\u1ea7m ng\u1eafn.<\/strong> C\u00e1c c\u1ea3m bi\u1ebfn n\u00e0y \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho ph\u1ea1m vi v\u00e0i m\u00e9t, \u0111\u1ee7 d\u00f9ng cho m\u1ed9t c\u0103n ph\u00f2ng. Th\u01b0\u1edbc d\u00e2y laser d\u00f9ng trong x\u00e2y d\u1ef1ng ho\u1ea1t \u0111\u1ed9ng tr\u00ean ph\u1ea1m vi h\u00e0ng ch\u1ee5c m\u00e9t v\u1edbi ch\u00f9m tia t\u1eadp trung v\u00e0o m\u1ed9t \u0111i\u1ec3m duy nh\u1ea5t.<\/li>\n<li><strong>\u00c1nh n\u1eafng m\u1ea1nh l\u00e0 m\u1ed9t v\u1ea5n \u0111\u1ec1.<\/strong> \u00c1nh s\u00e1ng m\u1eb7t tr\u1eddi r\u1ea5t gi\u00e0u b\u1ee9c x\u1ea1 h\u1ed3ng ngo\u1ea1i v\u00e0 l\u00e0m b\u00e3o h\u00f2a c\u1ea3m bi\u1ebfn. \u1ede ngo\u00e0i tr\u1eddi, v\u00e0o gi\u1eefa tr\u01b0a, hi\u1ec7u su\u1ea5t gi\u1ea3m xu\u1ed1ng.<\/li>\n<li><strong>K\u00ednh v\u00e0 g\u01b0\u01a1ng c\u00f3 th\u1ec3 \u0111\u00e1nh l\u1eeba th\u1ecb gi\u00e1c.<\/strong> Xung \u0111i\u1ec7n truy\u1ec1n qua ho\u1eb7c ph\u1ea3n x\u1ea1 \u0111\u1ebfn m\u1ed9t v\u1ecb tr\u00ed kh\u00e1c, v\u00e0 thi\u1ebft b\u1ecb s\u1ebd \u0111o nh\u1eefng g\u00ec n\u1eb1m ph\u00eda sau ho\u1eb7c b\u00ean c\u1ea1nh n\u00f3.<\/li>\n<li><strong>M\u00e0u \u0111en m\u1edd c\u00f3 kh\u1ea3 n\u0103ng th\u1ea5m h\u00fat.<\/strong> M\u1ed9t b\u1ec1 m\u1eb7t t\u1ed1i m\u00e0u, x\u1ec9n m\u00e0u ph\u1ea3n chi\u1ebfu r\u1ea5t \u00edt \u00e1nh s\u00e1ng, v\u00e0 ch\u1ea5m \u0111\u00f3 \u0111\u01a1n gi\u1ea3n l\u00e0 kh\u00f4ng th\u1ec3 \u0111\u1ecdc \u0111\u01b0\u1ee3c.<\/li>\n<\/ul>\n<p>N\u00f3i c\u00e1ch kh\u00e1c, c\u1ea3m bi\u1ebfn gi\u00fap c\u1ea3i thi\u1ec7n \u0111\u1ed9 ch\u00ednh x\u00e1c \u01b0\u1edbc t\u00ednh ch\u1ee9 kh\u00f4ng l\u00e0m thay \u0111\u1ed5i lo\u1ea1i d\u1ee5ng c\u1ee5. Vi\u1ec7c thay th\u1ebf thi\u1ebft b\u1ecb ch\u1ec9 v\u00ec l\u00fd do n\u00e0y hi\u1ebfm khi h\u1ee3p l\u00fd \u2014 m\u1ed9t th\u01b0\u1edbc d\u00e2y laser c\u01a1 b\u1ea3n c\u00f3 gi\u00e1 ch\u1ec9 b\u1eb1ng m\u1ed9t ph\u1ea7n nh\u1ecf so v\u1edbi m\u1ed9t chi\u1ebfc \u0111i\u1ec7n tho\u1ea1i di \u0111\u1ed9ng cao c\u1ea5p v\u00e0 cho k\u1ebft qu\u1ea3 \u0111o ch\u00ednh x\u00e1c h\u01a1n.<\/p>\n\n<h2>Di\u1ec7n t\u00edch v\u00e0 th\u1ec3 t\u00edch: n\u01a1i m\u1ed9t sai l\u1ea7m nh\u1ecf c\u00f3 th\u1ec3 tr\u1edf th\u00e0nh m\u1ed9t sai l\u1ea7m l\u1edbn.<\/h2>\n<p>\u0110\u00e2y l\u00e0 \u0111i\u1ec3m m\u00e0 h\u1ea7u nh\u01b0 kh\u00f4ng ai xem x\u00e9t tr\u01b0\u1edbc khi ho\u00e0n t\u1ea5t \u0111\u01a1n \u0111\u1eb7t h\u00e0ng v\u1eadt li\u1ec7u. Sai s\u1ed1 \u1edf m\u1ed7i ph\u00eda kh\u00f4ng ch\u1ec9 d\u1eebng l\u1ea1i \u1edf \u0111\u00f3: n\u00f3 s\u1ebd nh\u00e2n l\u00ean khi t\u00ednh di\u1ec7n t\u00edch, v\u00e0 l\u1ea1i nh\u00e2n l\u00ean m\u1ed9t l\u1ea7n n\u1eefa khi t\u00ednh th\u1ec3 t\u00edch.<\/p>\n<p>M\u1ed9t v\u00ed d\u1ee5 v\u1edbi c\u00e1c ph\u00e9p t\u00ednh d\u1ec5 ki\u1ec3m ch\u1ee9ng. M\u1ed9t c\u0103n ph\u00f2ng c\u00f3 k\u00edch th\u01b0\u1edbc 4,00 m x 3,00 m c\u00f3 di\u1ec7n t\u00edch l\u00e0 12 m\u00b2. Gi\u1ea3 s\u1eed m\u1ed7i c\u1ea1nh \u0111\u01b0\u1ee3c \u0111o l\u1edbn h\u01a1n 2% \u2014 4,08 m v\u00e0 3,06 m. Di\u1ec7n t\u00edch t\u00ednh to\u00e1n \u0111\u01b0\u1ee3c l\u00e0 12,48 m\u00b2, g\u1ea7n b\u1eb1ng 4% so v\u1edbi di\u1ec7n t\u00edch th\u1ef1c t\u1ebf. N\u1ebfu \u0111\u1ed9 l\u1ec7ch 2% t\u01b0\u01a1ng t\u1ef1 xu\u1ea5t hi\u1ec7n \u1edf c\u1ea3 ba chi\u1ec1u c\u1ee7a th\u1ec3 t\u00edch, k\u1ebft qu\u1ea3 s\u1ebd ch\u00eanh l\u1ec7ch h\u01a1n 6%.<\/p>\n<p>N\u00f3i m\u1ed9t c\u00e1ch d\u1ec5 hi\u1ec3u h\u01a1n: \u0111\u1ed1i v\u1edbi s\u01a1n v\u00e0 v\u00e1n s\u00e0n, vi\u1ec7c chuy\u1ec3n h\u01b0\u1edbng nh\u01b0 v\u1eady n\u1eb1m trong ph\u1ea1m vi cho ph\u00e9p m\u00e0 b\u1ea1n v\u1eabn th\u01b0\u1eddng s\u1eed d\u1ee5ng. C\u00f2n \u0111\u1ed1i v\u1edbi c\u00e1c v\u1eadt li\u1ec7u b\u00e1n theo m\u00e9t kh\u1ed1i, ch\u1eb3ng h\u1ea1n nh\u01b0 b\u00ea t\u00f4ng, c\u00e1t ho\u1eb7c \u0111\u1ea5t san l\u1ea5p, vi\u1ec7c chuy\u1ec3n h\u01b0\u1edbng t\u01b0\u01a1ng t\u1ef1 s\u1ebd t\u1ed1n k\u00e9m \u1edf m\u1ed9t chi\u1ec1u v\u00e0 l\u00e0m \u0111\u00ecnh tr\u1ec7 d\u1ef1 \u00e1n \u1edf chi\u1ec1u ng\u01b0\u1ee3c l\u1ea1i.<\/p>\n<p>Hai bi\u1ec7n ph\u00e1p ph\u00f2ng ng\u1eeba \u0111\u01a1n gi\u1ea3n: \u0111o m\u1ed7i c\u1ea1nh hai l\u1ea7n, v\u00e0o nh\u1eefng th\u1eddi \u0111i\u1ec3m kh\u00e1c nhau, v\u00e0 l\u1ea5y gi\u00e1 tr\u1ecb \u0111\u01b0\u1ee3c l\u1eb7p l\u1ea1i; v\u00e0 n\u00ean c\u1ed9ng c\u00e1c \u0111o\u1ea1n ng\u1eafn l\u1ea1i v\u1edbi nhau thay v\u00ec k\u00e9o m\u1ed9t \u0111o\u1ea1n d\u00e0i t\u1eeb g\u00f3c n\u00e0y sang g\u00f3c kia, v\u00ec \u0111\u1ed9 l\u1ec7ch t\u0103ng l\u00ean theo kho\u1ea3ng c\u00e1ch di chuy\u1ec3n.<\/p>\n\n<h2>\u0110o \u0111\u1ea1c m\u00e0 kh\u00f4ng c\u1ea7n th\u01b0\u1edbc d\u00e2y v\u00e0 kh\u00f4ng c\u1ea7n \u1ee9ng d\u1ee5ng.<\/h2>\n<p>Ai c\u0169ng c\u00f3 nh\u1eefng v\u1eadt d\u1ee5ng c\u00f3 k\u00edch th\u01b0\u1edbc ti\u00eau chu\u1ea9n \u1edf nh\u00e0, v\u00e0 ch\u00fang c\u00f3 th\u1ec3 d\u00f9ng nh\u01b0 th\u01b0\u1edbc \u0111o t\u1ea1m th\u1eddi. Ch\u00fang kh\u00f4ng thay th\u1ebf \u0111\u01b0\u1ee3c c\u00e1c d\u1ee5ng c\u1ee5 \u0111o ch\u00ednh x\u00e1c, nh\u01b0ng gi\u00fap ng\u0103n ng\u1eeba nh\u1eefng sai s\u00f3t nghi\u00eam tr\u1ecdng.<\/p>\n<ul>\n<li><strong>T\u1edd gi\u1ea5y A4:<\/strong> 21,0 cm x 29,7 cm. \u0110\u00e2y l\u00e0 ti\u00eau chu\u1ea9n qu\u1ed1c t\u1ebf, v\u00ec v\u1eady b\u1ea5t k\u1ef3 t\u1eadp gi\u1ea5y n\u00e0o c\u0169ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c d\u00f9ng l\u00e0m tham chi\u1ebfu.<\/li>\n<li><strong>Th\u1ebb ki\u1ec3u ng\u00e2n h\u00e0ng:<\/strong> K\u00edch th\u01b0\u1edbc 8,56 cm x 5,40 cm, c\u0169ng l\u00e0 k\u00edch th\u01b0\u1edbc ti\u00eau chu\u1ea9n. V\u1eeba v\u1eb7n trong v\u00ed v\u00e0 c\u00f3 th\u1ec3 d\u00f9ng l\u00e0m th\u01b0\u1edbc \u0111o khi ch\u1ee5p \u1ea3nh.<\/li>\n<li><strong>S\u00e0n nh\u00e0 v\u00e0 \u1ed1p l\u00e1t:<\/strong> N\u1ebfu b\u1ea1n bi\u1ebft k\u00edch th\u01b0\u1edbc c\u1ee7a g\u1ea1ch, h\u00e3y \u0111\u1ebfm s\u1ed1 vi\u00ean g\u1ea1ch v\u00e0 c\u1ed9ng th\u00eam chi\u1ec1u d\u00e0i c\u00e1c m\u1ea1ch g\u1ea1ch. \u0110\u00f3 l\u00e0 c\u00e1ch nhanh nh\u1ea5t \u0111\u1ec3 ho\u00e0n thi\u1ec7n m\u1ed9t c\u0103n ph\u00f2ng \u0111\u00e3 \u0111\u01b0\u1ee3c l\u00e1t g\u1ea1ch s\u1eb5n.<\/li>\n<li><strong>B\u01b0\u1edbc \u0111\u00e3 \u0111\u01b0\u1ee3c hi\u1ec7u ch\u1ec9nh c\u1ee7a b\u1ea1n:<\/strong> D\u00f9ng th\u01b0\u1edbc d\u00e2y \u0111o m\u01b0\u1eddi b\u01b0\u1edbc ch\u00e2n t\u1ef1 nhi\u00ean, chia cho m\u01b0\u1eddi, r\u1ed3i ghi k\u1ebft qu\u1ea3 v\u00e0o \u1ee9ng d\u1ee5ng ghi ch\u00fa tr\u00ean \u0111i\u1ec7n tho\u1ea1i. Sau \u0111\u00f3, b\u1ea1n c\u00f3 th\u1ec3 \u0111o di\u1ec7n t\u00edch m\u1ed9t l\u00f4 \u0111\u1ea5t b\u1eb1ng c\u00e1ch \u0111i b\u1ed9.<\/li>\n<li><strong>D\u00e2y c\u00f3 th\u1eaft n\u00fat:<\/strong> M\u1ed7i m\u00e9t th\u1eaft m\u1ed9t n\u00fat s\u1ebd bi\u1ebfn m\u1ed9t \u0111o\u1ea1n d\u00e2y th\u00e0nh m\u1ed9t th\u01b0\u1edbc d\u00e2y kh\u00f4ng b\u1ecb tu\u1ed9t, c\u00f3 th\u1ec3 \u0111o \u0111\u1ebfn nh\u1eefng n\u01a1i m\u00e0 th\u01b0\u1edbc d\u00e2y c\u1ee9ng kh\u00f4ng th\u1ec3 \u0111o t\u1edbi v\u00e0 l\u1ea1i v\u1eeba v\u1eb7n trong t\u00fai c\u1ee7a b\u1ea1n.<\/li>\n<\/ul>\n<p>B\u1ea1n c\u0169ng n\u00ean hi\u1ec7u ch\u1ec9nh chi\u1ec1u d\u00e0i b\u00e0n tay v\u00e0 s\u1ea3i tay c\u1ee7a m\u00ecnh m\u1ed9t l\u1ea7n. \u0110\u00e2y l\u00e0 nh\u1eefng ph\u00e9p \u0111o s\u01a1 b\u1ed9, c\u00f3 th\u1ec3 sai s\u1ed1 v\u00e0i centimet, nh\u01b0ng v\u1eabn t\u1ed1t h\u01a1n l\u00e0 \u0111o\u00e1n m\u00f2.<\/p>\n\n<h2>T\u1eeb kh\u00e2u \u0111o \u0111\u1ea1c \u0111\u1ebfn \u0111\u1eb7t h\u00e0ng v\u1eadt t\u01b0: c\u1ea7n ch\u1eeba bao nhi\u00eau d\u01b0?<\/h2>\n<p>S\u1ed1 li\u1ec7u \u01b0\u1edbc t\u00ednh kh\u00f4ng ph\u1ea3i l\u00e0 con s\u1ed1 \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o ng\u00e2n s\u00e1ch. C\u00f3 m\u1ed9t bi\u00ean \u0111\u1ed9 sai s\u1ed1 gi\u1eefa hai con s\u1ed1 n\u00e0y, v\u00e0 bi\u00ean \u0111\u1ed9 sai s\u1ed1 \u0111\u00f3 thay \u0111\u1ed5i t\u00f9y thu\u1ed9c v\u00e0o v\u1eadt li\u1ec7u.<\/p>\n<ol>\n<li><strong>V\u1eadt li\u1ec7u l\u00e1t s\u00e0n v\u00e0 \u1ed1p t\u01b0\u1eddng.<\/strong> C\u1ed9ng t\u1ed5ng di\u1ec7n t\u00edch v\u00e0 t\u00ednh \u0111\u1ebfn vi\u1ec7c c\u1eaft t\u1ec9a v\u00e0 thay th\u1ebf. Kh\u00f4ng gian c\u00e0ng c\u00f3 nhi\u1ec1u \u0111\u01b0\u1eddng c\u1eaft \u2013 c\u1ed9t, h\u1ed1c, v\u1ecb tr\u00ed ch\u00e9o \u2013 th\u00ec l\u1ec1 c\u00e0ng c\u1ea7n l\u1edbn h\u01a1n. C\u1ea5t gi\u1eef nh\u1eefng m\u1ea3nh th\u1eeba: c\u00e1c l\u00f4 h\u00e0ng kh\u00e1c nhau th\u01b0\u1eddng c\u00f3 m\u00e0u s\u1eafc h\u01a1i kh\u00e1c nhau.<\/li>\n<li><strong>M\u1ef1c.<\/strong> L\u01b0\u1ee3ng s\u01a1n \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111\u01b0\u1ee3c in tr\u00ean lon v\u00e0 t\u00ednh tr\u00ean m\u1ed7i l\u1edbp s\u01a1n. H\u00e3y \u0111\u1ebfm s\u1ed1 l\u1edbp s\u01a1n, tr\u1eeb \u0111i s\u1ed1 l\u1edbp s\u01a1n cho c\u1eeda v\u00e0 c\u1eeda s\u1ed5 l\u1edbn, v\u00e0 nh\u1edb r\u1eb1ng c\u00e1c b\u1ec1 m\u1eb7t m\u1edbi v\u00e0 x\u1ed1p s\u1ebd h\u1ea5p th\u1ee5 nhi\u1ec1u s\u01a1n h\u01a1n trong l\u1ea7n s\u01a1n \u0111\u1ea7u ti\u00ean.<\/li>\n<li><strong>H\u00ecnh n\u1ec1n.<\/strong> S\u1ea3n ph\u1ea9m \u0111\u01b0\u1ee3c b\u00e1n theo cu\u1ed9n, v\u00e0 h\u1ecda ti\u1ebft c\u1ea7n ph\u1ea3i kh\u1edbp nhau gi\u1eefa c\u00e1c d\u1ea3i, v\u00ec v\u1eady ph\u1ea7n hao h\u1ee5t do \u0111i\u1ec1u ch\u1ec9nh h\u1ecda ti\u1ebft \u0111\u01b0\u1ee3c t\u00ednh \u0111\u1ebfn c\u00f9ng v\u1edbi di\u1ec7n t\u00edch.<\/li>\n<li><strong>N\u1eb9p ch\u00e2n t\u01b0\u1eddng, ph\u00e0o ch\u1ec9 v\u00e0 d\u00e2y c\u00e1p.<\/strong> C\u1ed9ng chu vi, tr\u1eeb \u0111i c\u00e1c kho\u1ea3ng tr\u1ed1ng, v\u00e0 c\u1ed9ng th\u00eam ph\u1ea7n c\u1eaft 45 \u0111\u1ed9 \u1edf c\u00e1c g\u00f3c.<\/li>\n<li><strong>\u0110\u1ed3 n\u1ed9i th\u1ea5t v\u00e0 thi\u1ebft b\u1ecb gia d\u1ee5ng.<\/strong> \u1ede \u0111\u00e2y, kho\u1ea3ng kh\u00f4ng gian n\u00e0y d\u00e0nh cho vi\u1ec7c l\u01b0u th\u00f4ng, kh\u00f4ng ph\u1ea3i \u0111\u1ec3 mua b\u00e1n: m\u1ed9t c\u00e1nh c\u1eeda m\u1edf ra, m\u1ed9t ng\u0103n k\u00e9o tr\u01b0\u1ee3t \u0111i, v\u00e0 l\u1ed1i \u0111i \u0111\u1ebfn v\u1ecb tr\u00ed c\u1ee7a n\u00f3. Vi\u1ec7c \u0111o \u0111\u1ea1c k\u00edch th\u01b0\u1edbc l\u1ed1i \u0111i s\u1ebd v\u00f4 \u00edch n\u1ebfu t\u1ee7 l\u1ea1nh kh\u00f4ng v\u1eeba qua h\u00e0nh lang.<\/li>\n<\/ol>\n<p>Nguy\u00ean t\u1eafc t\u00f3m g\u1ecdn t\u1ea5t c\u1ea3: khi mua h\u00e0ng, h\u00e3y l\u00e0m tr\u00f2n s\u1ed1; khi c\u1eaft v\u1ea3i, h\u00e3y ki\u1ec3m tra l\u1ea1i b\u1eb1ng th\u01b0\u1edbc d\u00e2y.<\/p>\n\n<h2>C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/h2>\n\n<h3>T\u00f4i c\u00f3 c\u1ea7n internet \u0111\u1ec3 \u0111o kh\u00f4ng?<\/h3>\n<p>Kh\u00f4ng. Qu\u00e1 tr\u00ecnh t\u00ednh to\u00e1n di\u1ec5n ra tr\u00ean thi\u1ebft b\u1ecb. N\u1ebfu \u1ee9ng d\u1ee5ng kh\u00f4ng m\u1edf \u0111\u01b0\u1ee3c n\u1ebfu kh\u00f4ng c\u00f3 k\u1ebft n\u1ed1i, r\u1ea5t c\u00f3 th\u1ec3 y\u00eau c\u1ea7u \u0111\u00f3 l\u00e0 d\u00e0nh cho qu\u1ea3ng c\u00e1o ch\u1ee9 kh\u00f4ng ph\u1ea3i cho vi\u1ec7c \u0111o l\u01b0\u1eddng \u2014 v\u00e0 \u0111i\u1ec1u \u0111\u00f3 \u0111\u00e3 n\u00f3i l\u00ean ph\u1ea7n n\u00e0o v\u1ec1 m\u1ee9c \u0111\u1ed9 \u01b0u ti\u00ean c\u1ee7a n\u00f3.<\/p>\n\n<h3>T\u1ea1i sao anh \u1ea5y l\u1ea1i y\u00eau c\u1ea7u t\u00f4i di chuy\u1ec3n \u0111i\u1ec7n tho\u1ea1i tr\u01b0\u1edbc khi b\u1eaft \u0111\u1ea7u?<\/h3>\n<p>V\u00ec b\u1ea3n th\u00e2n h\u00ecnh \u1ea3nh kh\u00f4ng c\u00f3 t\u1ef7 l\u1ec7. B\u1eb1ng c\u00e1ch di chuy\u1ec3n thi\u1ebft b\u1ecb, n\u00f3 thu \u0111\u01b0\u1ee3c hai g\u00f3c nh\u00ecn kh\u00e1c nhau v\u1ec1 c\u00f9ng m\u1ed9t \u0111i\u1ec3m v\u00e0 s\u1eed d\u1ee5ng s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa ch\u00fang, c\u00f9ng v\u1edbi chuy\u1ec3n \u0111\u1ed9ng \u0111\u01b0\u1ee3c \u0111o b\u1edfi c\u00e1c c\u1ea3m bi\u1ebfn, \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh kho\u1ea3ng c\u00e1ch gi\u1eefa c\u00e1c v\u1eadt th\u1ec3. N\u1ebfu kh\u00f4ng c\u00f3 chuy\u1ec3n \u0111\u1ed9ng ban \u0111\u1ea7u n\u00e0y, kh\u00f4ng th\u1ec3 bi\u1ebft \u0111\u01b0\u1ee3c k\u00edch th\u01b0\u1edbc.<\/p>\n\n<h3>T\u1ea1i sao k\u1ebft qu\u1ea3 \u0111o l\u1ea1i thay \u0111\u1ed5i khi t\u00f4i \u0111o l\u1ea1i?<\/h3>\n<p>V\u00ec m\u1ed7i phi\u00ean l\u00e0m vi\u1ec7c t\u00e1i t\u1ea1o l\u1ea1i to\u00e0n b\u1ed9 khung c\u1ea3nh t\u1eeb \u0111\u1ea7u, \u0111i\u1ec3m b\u1ea1n ch\u1ea1m v\u00e0o tr\u00ean m\u00e0n h\u00ecnh s\u1ebd kh\u00f4ng bao gi\u1edd ho\u00e0n to\u00e0n gi\u1ed1ng nhau. Sai l\u1ec7ch v\u00e0i centimet l\u00e0 b\u00ecnh th\u01b0\u1eddng. Sai l\u1ec7ch v\u00e0i centimet cho th\u1ea5y kh\u1ea3 n\u0103ng theo d\u00f5i k\u00e9m: h\u00e3y c\u1ea3i thi\u1ec7n \u00e1nh s\u00e1ng, ti\u1ebfn l\u1ea1i g\u1ea7n h\u01a1n v\u00e0 l\u00e0m l\u1ea1i phi\u00ean l\u00e0m vi\u1ec7c.<\/p>\n\n<h3>T\u00f4i c\u00f3 th\u1ec3 d\u00f9ng d\u1ee5ng c\u1ee5 n\u00e0y \u0111\u1ec3 \u0111o di\u1ec7n t\u00edch m\u1ed9t m\u1ea3nh \u0111\u1ea5t \u0111\u01b0\u1ee3c kh\u00f4ng?<\/h3>\n<p>Kh\u00f4ng. C\u00f4ng ngh\u1ec7 th\u1ef1c t\u1ebf t\u0103ng c\u01b0\u1eddng \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho quy m\u00f4 c\u1ee7a m\u1ed9t c\u0103n ph\u00f2ng. Di\u1ec7n t\u00edch ngo\u00e0i tr\u1eddi \u0111\u01b0\u1ee3c \u01b0\u1edbc t\u00ednh b\u1eb1ng GPS, v\u1edbi sai s\u1ed1 trong ph\u1ea1m vi v\u00e0i m\u00e9t, v\u00e0 vi\u1ec7c x\u00e1c \u0111\u1ecbnh gi\u00e1 tr\u1ecb ranh gi\u1edbi ph\u00e1p l\u00fd \u0111\u00f2i h\u1ecfi ph\u1ea3i c\u00f3 kh\u1ea3o s\u00e1t c\u1ee7a m\u1ed9t chuy\u00ean gia \u0111\u1ee7 \u0111i\u1ec1u ki\u1ec7n.<\/p>\n\n<h3>Li\u1ec7u c\u00f3 th\u1ec3 \u0111o chi\u1ec1u cao c\u1ee7a m\u1ed9t ng\u01b0\u1eddi ho\u1eb7c \u0111o k\u00edch th\u01b0\u1edbc qu\u1ea7n \u00e1o c\u1ee7a h\u1ecd kh\u00f4ng?<\/h3>\n<p>\u0110\u1ed1i v\u1edbi c\u00e1c ph\u00e9p \u0111o th\u00f4ng th\u01b0\u1eddng, th\u00ec c\u00f3. Nh\u01b0ng \u0111\u1ed1i v\u1edbi qu\u1ea7n \u00e1o th\u00ec kh\u00f4ng: c\u01a1 th\u1ec3 kh\u00f4ng ph\u1eb3ng, con ng\u01b0\u1eddi hay c\u1eed \u0111\u1ed9ng, v\u00e0 vi\u1ec7c may v\u00e1 \u0111\u00f2i h\u1ecfi \u0111\u1ed9 ch\u00ednh x\u00e1c \u0111\u1ebfn t\u1eebng centimet. M\u1ed9t th\u01b0\u1edbc d\u00e2y m\u1ec1m s\u1ebd gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 nhanh h\u01a1n v\u00e0 kh\u00f4ng c\u1ea7n tranh c\u00e3i.<\/p>\n\n<h3>\u1ee8ng d\u1ee5ng n\u00e0y c\u00f3 t\u1ed1n nhi\u1ec1u pin kh\u00f4ng?<\/h3>\n<p>\u1ee8ng d\u1ee5ng n\u00e0y ti\u00eau t\u1ed1n r\u1ea5t nhi\u1ec1u t\u00e0i nguy\u00ean khi \u0111ang m\u1edf v\u00ec n\u00f3 gi\u1eef cho camera, c\u1ea3m bi\u1ebfn, b\u1ed9 x\u1eed l\u00fd h\u00ecnh \u1ea3nh v\u00e0 m\u00e0n h\u00ecnh ho\u1ea1t \u0111\u1ed9ng \u0111\u1ed3ng th\u1eddi. \u0110\u00e2y l\u00e0 lo\u1ea1i \u1ee9ng d\u1ee5ng b\u1ea1n ch\u1ec9 m\u1edf, s\u1eed d\u1ee5ng v\u00e0 \u0111\u00f3ng ngay \u2013 \u0111\u1ec3 n\u00f3 ch\u1ea1y ng\u1ea7m kh\u00f4ng mang l\u1ea1i b\u1ea5t k\u1ef3 l\u1ee3i \u00edch n\u00e0o.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Ph\u1ea7n k\u1ebft lu\u1eadn<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c \u1ee9ng d\u1ee5ng th\u01b0\u1edbc d\u00e2y mi\u1ec5n ph\u00ed th\u1ef1c hi\u1ec7n vi\u1ec7c \u01b0\u1edbc l\u01b0\u1ee3ng kh\u00e1 ch\u00ednh x\u00e1c b\u1eb1ng c\u00f4ng ngh\u1ec7 th\u1ef1c t\u1ebf t\u0103ng c\u01b0\u1eddng. Ch\u00fang ho\u1ea1t \u0111\u1ed9ng r\u1ea5t t\u1ed1t \u0111\u1ec3 ki\u1ec3m tra xem m\u1ed9t chi\u1ebfc gh\u1ebf sofa c\u00f3 v\u1eeba kh\u00f4ng, \u0111\u1ec3 \u0111\u1ecbnh gi\u00e1 s\u01a1n v\u00e0 \u0111\u1ec3 nhanh ch\u00f3ng l\u00ean k\u1ebf ho\u1ea1ch b\u1ed1 tr\u00ed ph\u00f2ng, v\u00e0 ch\u00fang ho\u00e0n to\u00e0n mi\u1ec5n ph\u00ed.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ch\u00fang kh\u00f4ng ph\u1ea3i l\u00e0 th\u01b0\u1edbc d\u00e2y laser: ch\u00fang thi\u1ebfu ph\u1ea7n c\u1ee9ng \u0111\u1ec3 \u0111o th\u1eddi gian bay. H\u00e3y nh\u1edb s\u1ef1 kh\u00e1c bi\u1ec7t n\u00e0y \u2014 m\u1ed9t \u01b0\u1edbc t\u00ednh v\u00e0i centimet \u0111\u1ec3 l\u1eadp k\u1ebf ho\u1ea1ch, c\u00f2n \u0111\u00e2y l\u00e0 d\u1ee5ng c\u1ee5 v\u1eadt l\u00fd \u0111\u1ec3 c\u1eaft.<\/p>\n\n\n<h2>\u0110\u1ecdc qu\u00e1<\/h2>\n<ul>\n<li><a href=\"https:\/\/crismob.com\/vi_eu\/kham-pha-nhung-ung-dung-gps-mien-phi-tot-nhat\/\">C\u00e1c \u1ee9ng d\u1ee5ng GPS mi\u1ec5n ph\u00ed t\u1ed1t nh\u1ea5t: B\u1ea3n \u0111\u1ed3 ngo\u1ea1i tuy\u1ebfn v\u00e0 m\u1ee9c s\u1eed d\u1ee5ng d\u1eef li\u1ec7u<\/a><\/li>\n<li><a href=\"https:\/\/crismob.com\/vi_eu\/kham-pha-nhung-ung-dung-tot-nhat-de-co-wi-fi-mien-phi-nam-2025\/\">\u1ee8ng d\u1ee5ng Wi-Fi mi\u1ec5n ph\u00ed: T\u1ea1i sao m\u1ea1ng hi\u1ec3n th\u1ecb nh\u01b0ng kh\u00f4ng k\u1ebft n\u1ed1i \u0111\u01b0\u1ee3c?<\/a><\/li>\n<li><a href=\"https:\/\/crismob.com\/vi_eu\/ung-dung-can-gia-suc-kham-pha-nhung-loi-ich-khi-su-dung-cong-cu-mien-phi-tai-hien-truong\/\">\u1ee8ng d\u1ee5ng c\u00e2n gia s\u00fac: \u01afu \u0111i\u1ec3m th\u1ef1c t\u1ebf v\u00e0 nh\u1eefng l\u1ea7m t\u01b0\u1edfng trong l\u0129nh v\u1ef1c n\u00e0y<\/a><\/li>\n<li><a href=\"https:\/\/crismob.com\/vi_eu\/hay-hoc-cach-do-chinh-xac-bang-thuoc-day-dien-tu\/\">Th\u01b0\u1edbc d\u00e2y k\u1ef9 thu\u1eadt s\u1ed1 tr\u00ean \u0111i\u1ec7n tho\u1ea1i di \u0111\u1ed9ng: C\u00e1ch \u0111o ch\u00ednh x\u00e1c h\u01a1n v\u00e0 nh\u1eefng h\u1ea1n ch\u1ebf c\u1ee7a n\u00f3.<\/a><\/li>\n<li><a href=\"https:\/\/crismob.com\/vi_eu\/cac-ung-dung-dich-thuat-mien-phi-tot-nhat-co-tinh-nang-ai\/\">\u1ee8ng d\u1ee5ng d\u1ecbch thu\u1eadt AI mi\u1ec5n ph\u00ed: Nh\u1eefng \u1ee9ng d\u1ee5ng t\u1ed1t nh\u1ea5t v\u00e0 nh\u1eefng l\u1ed7i th\u01b0\u1eddng g\u1eb7p<\/a><\/li>\n<li><a href=\"https:\/\/crismob.com\/vi_eu\/tao-ra-nhung-buc-anh-tuyet-dep-kham-pha-cac-ung-dung-chinh-sua-anh\/\">\u1ee8ng d\u1ee5ng ch\u1ec9nh s\u1eeda \u1ea3nh: gh\u00e9p \u1ea3nh, th\u00eam h\u00ecnh m\u1edd v\u00e0 s\u1eed d\u1ee5ng h\u00ecnh \u1ea3nh.<\/a><\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>Aplicativos de trena s\u00e3o um dos casos em que a promessa e a realidade quase se encontram \u2014 mas n\u00e3o exatamente. Eles medem, sim. S\u00f3 n\u00e3o\u2026<\/p>","protected":false},"author":1,"featured_media":94874,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_revidia_rewards_active":"","footnotes":""},"categories":[3,1],"tags":[],"class_list":["post-94744","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-dicas","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Aplicativos de Trena Gr\u00e1tis: O Que a Realidade Aumentada Mede - Crismob<\/title>\n<meta name=\"description\" content=\"Medir pela c\u00e2mera funciona dentro de limites conhecidos. Veja como a realidade aumentada calcula dist\u00e2ncia, qual o erro esperado e quando usar trena de verdade.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/crismob.com\/vi_eu\/kham-pha-nhung-ung-dung-thuoc-day-mien-phi-tot-nhat\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Aplicativos de Trena Gr\u00e1tis: O Que a Realidade Aumentada Mede - Crismob\" \/>\n<meta property=\"og:description\" content=\"Medir pela c\u00e2mera funciona dentro de limites conhecidos. Veja como a realidade aumentada calcula dist\u00e2ncia, qual o erro esperado e quando usar trena de verdade.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/crismob.com\/vi_eu\/kham-pha-nhung-ung-dung-thuoc-day-mien-phi-tot-nhat\/\" \/>\n<meta property=\"og:site_name\" content=\"Crismob\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-28T21:28:04+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-08-18T19:38:10+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/crismob.com\/wp-content\/uploads\/2025\/06\/Captura-de-tela-2025-07-30-024636.png\" \/>\n\t<meta property=\"og:image:width\" content=\"503\" \/>\n\t<meta property=\"og:image:height\" content=\"220\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Rodrigo Oliveira\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Rodrigo Oliveira\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"11 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/crismob.com\\\/descubra-os-melhores-aplicativos-de-trena-gratis\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/crismob.com\\\/descubra-os-melhores-aplicativos-de-trena-gratis\\\/\"},\"author\":{\"name\":\"Rodrigo Oliveira\",\"@id\":\"https:\\\/\\\/crismob.com\\\/#\\\/schema\\\/person\\\/1bbf606197a714392d8d24910a91b803\"},\"headline\":\"Aplicativos de Trena Gr\u00e1tis: O Que a Realidade Aumentada Mede\",\"datePublished\":\"2025-06-28T21:28:04+00:00\",\"dateModified\":\"2026-08-18T19:38:10+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/crismob.com\\\/descubra-os-melhores-aplicativos-de-trena-gratis\\\/\"},\"wordCount\":2309,\"publisher\":{\"@id\":\"https:\\\/\\\/crismob.com\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/crismob.com\\\/descubra-os-melhores-aplicativos-de-trena-gratis\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/crismob.com\\\/wp-content\\\/uploads\\\/2025\\\/06\\\/Captura-de-tela-2025-07-30-024636.webp\",\"articleSection\":[\"Dicas\"],\"inLanguage\":\"vi-eu\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/crismob.com\\\/descubra-os-melhores-aplicativos-de-trena-gratis\\\/\",\"url\":\"https:\\\/\\\/crismob.com\\\/descubra-os-melhores-aplicativos-de-trena-gratis\\\/\",\"name\":\"Aplicativos de Trena Gr\u00e1tis: O Que a Realidade Aumentada Mede - Crismob\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/crismob.com\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/crismob.com\\\/descubra-os-melhores-aplicativos-de-trena-gratis\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/crismob.com\\\/descubra-os-melhores-aplicativos-de-trena-gratis\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/crismob.com\\\/wp-content\\\/uploads\\\/2025\\\/06\\\/Captura-de-tela-2025-07-30-024636.webp\",\"datePublished\":\"2025-06-28T21:28:04+00:00\",\"dateModified\":\"2026-08-18T19:38:10+00:00\",\"description\":\"Medir pela c\u00e2mera funciona dentro de limites conhecidos. Veja como a realidade aumentada calcula dist\u00e2ncia, qual o erro esperado e quando usar trena de verdade.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/crismob.com\\\/descubra-os-melhores-aplicativos-de-trena-gratis\\\/#breadcrumb\"},\"inLanguage\":\"vi-eu\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/crismob.com\\\/descubra-os-melhores-aplicativos-de-trena-gratis\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"vi-eu\",\"@id\":\"https:\\\/\\\/crismob.com\\\/descubra-os-melhores-aplicativos-de-trena-gratis\\\/#primaryimage\",\"url\":\"https:\\\/\\\/crismob.com\\\/wp-content\\\/uploads\\\/2025\\\/06\\\/Captura-de-tela-2025-07-30-024636.webp\",\"contentUrl\":\"https:\\\/\\\/crismob.com\\\/wp-content\\\/uploads\\\/2025\\\/06\\\/Captura-de-tela-2025-07-30-024636.webp\",\"width\":503,\"height\":220},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/crismob.com\\\/descubra-os-melhores-aplicativos-de-trena-gratis\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"In\u00edcio\",\"item\":\"https:\\\/\\\/crismob.com\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Aplicativos de Trena Gr\u00e1tis: O Que a Realidade Aumentada Mede\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/crismob.com\\\/vi_eu\\\/#website\",\"url\":\"https:\\\/\\\/crismob.com\\\/vi_eu\\\/\",\"name\":\"Crismob\",\"description\":\"Tecnologia e Informa\u00e7\u00e3o\",\"publisher\":{\"@id\":\"https:\\\/\\\/crismob.com\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/crismob.com\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"vi-eu\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/crismob.com\\\/vi_eu\\\/#organization\",\"name\":\"Crismob\",\"url\":\"https:\\\/\\\/crismob.com\\\/vi_eu\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"vi-eu\",\"@id\":\"https:\\\/\\\/crismob.com\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/crismob.com\\\/wp-content\\\/uploads\\\/2025\\\/11\\\/cropped-ChatGPT-Image-17-de-nov.-de-2025-12_02_30.webp\",\"contentUrl\":\"https:\\\/\\\/crismob.com\\\/wp-content\\\/uploads\\\/2025\\\/11\\\/cropped-ChatGPT-Image-17-de-nov.-de-2025-12_02_30.webp\",\"width\":1023,\"height\":341,\"caption\":\"Crismob\"},\"image\":{\"@id\":\"https:\\\/\\\/crismob.com\\\/#\\\/schema\\\/logo\\\/image\\\/\"}},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/crismob.com\\\/#\\\/schema\\\/person\\\/1bbf606197a714392d8d24910a91b803\",\"name\":\"Rodrigo Oliveira\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"vi-eu\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/2ed3791d6d438d885fd44954de972454d91068acca6c93721fabc17db1fe9dfc?s=96&d=mm&r=g\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/2ed3791d6d438d885fd44954de972454d91068acca6c93721fabc17db1fe9dfc?s=96&d=mm&r=g\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/2ed3791d6d438d885fd44954de972454d91068acca6c93721fabc17db1fe9dfc?s=96&d=mm&r=g\",\"caption\":\"Rodrigo Oliveira\"},\"sameAs\":[\"http:\\\/\\\/crismob.com\"],\"url\":\"https:\\\/\\\/crismob.com\\\/vi_eu\\\/author\\\/raiphy\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"\u1ee8ng d\u1ee5ng th\u01b0\u1edbc d\u00e2y mi\u1ec5n ph\u00ed: C\u00f4ng ngh\u1ec7 th\u1ef1c t\u1ebf t\u0103ng c\u01b0\u1eddng \u0111o l\u01b0\u1eddng nh\u1eefng g\u00ec - Crismob","description":"Vi\u1ec7c \u0111o kho\u1ea3ng c\u00e1ch b\u1eb1ng camera ho\u1ea1t \u0111\u1ed9ng trong ph\u1ea1m vi gi\u1edbi h\u1ea1n \u0111\u00e3 bi\u1ebft. H\u00e3y xem th\u1ef1c t\u1ebf t\u0103ng c\u01b0\u1eddng t\u00ednh to\u00e1n kho\u1ea3ng c\u00e1ch nh\u01b0 th\u1ebf n\u00e0o, sai s\u1ed1 d\u1ef1 ki\u1ebfn l\u00e0 bao nhi\u00eau v\u00e0 khi n\u00e0o n\u00ean s\u1eed d\u1ee5ng th\u01b0\u1edbc d\u00e2y th\u1ef1c t\u1ebf.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/crismob.com\/vi_eu\/kham-pha-nhung-ung-dung-thuoc-day-mien-phi-tot-nhat\/","og_locale":"en_US","og_type":"article","og_title":"Aplicativos de Trena Gr\u00e1tis: O Que a Realidade Aumentada Mede - Crismob","og_description":"Medir pela c\u00e2mera funciona dentro de limites conhecidos. Veja como a realidade aumentada calcula dist\u00e2ncia, qual o erro esperado e quando usar trena de verdade.","og_url":"https:\/\/crismob.com\/vi_eu\/kham-pha-nhung-ung-dung-thuoc-day-mien-phi-tot-nhat\/","og_site_name":"Crismob","article_published_time":"2025-06-28T21:28:04+00:00","article_modified_time":"2026-08-18T19:38:10+00:00","og_image":[{"width":503,"height":220,"url":"https:\/\/crismob.com\/wp-content\/uploads\/2025\/06\/Captura-de-tela-2025-07-30-024636.png","type":"image\/png"}],"author":"Rodrigo Oliveira","twitter_card":"summary_large_image","twitter_misc":{"Written by":"Rodrigo Oliveira","Est. reading time":"11 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/crismob.com\/descubra-os-melhores-aplicativos-de-trena-gratis\/#article","isPartOf":{"@id":"https:\/\/crismob.com\/descubra-os-melhores-aplicativos-de-trena-gratis\/"},"author":{"name":"Rodrigo Oliveira","@id":"https:\/\/crismob.com\/#\/schema\/person\/1bbf606197a714392d8d24910a91b803"},"headline":"Aplicativos de Trena Gr\u00e1tis: O Que a Realidade Aumentada Mede","datePublished":"2025-06-28T21:28:04+00:00","dateModified":"2026-08-18T19:38:10+00:00","mainEntityOfPage":{"@id":"https:\/\/crismob.com\/descubra-os-melhores-aplicativos-de-trena-gratis\/"},"wordCount":2309,"publisher":{"@id":"https:\/\/crismob.com\/#organization"},"image":{"@id":"https:\/\/crismob.com\/descubra-os-melhores-aplicativos-de-trena-gratis\/#primaryimage"},"thumbnailUrl":"https:\/\/crismob.com\/wp-content\/uploads\/2025\/06\/Captura-de-tela-2025-07-30-024636.webp","articleSection":["Dicas"],"inLanguage":"vi-eu"},{"@type":"WebPage","@id":"https:\/\/crismob.com\/descubra-os-melhores-aplicativos-de-trena-gratis\/","url":"https:\/\/crismob.com\/descubra-os-melhores-aplicativos-de-trena-gratis\/","name":"\u1ee8ng d\u1ee5ng th\u01b0\u1edbc d\u00e2y mi\u1ec5n ph\u00ed: C\u00f4ng ngh\u1ec7 th\u1ef1c t\u1ebf t\u0103ng c\u01b0\u1eddng \u0111o l\u01b0\u1eddng nh\u1eefng g\u00ec - Crismob","isPartOf":{"@id":"https:\/\/crismob.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/crismob.com\/descubra-os-melhores-aplicativos-de-trena-gratis\/#primaryimage"},"image":{"@id":"https:\/\/crismob.com\/descubra-os-melhores-aplicativos-de-trena-gratis\/#primaryimage"},"thumbnailUrl":"https:\/\/crismob.com\/wp-content\/uploads\/2025\/06\/Captura-de-tela-2025-07-30-024636.webp","datePublished":"2025-06-28T21:28:04+00:00","dateModified":"2026-08-18T19:38:10+00:00","description":"Vi\u1ec7c \u0111o kho\u1ea3ng c\u00e1ch b\u1eb1ng camera ho\u1ea1t \u0111\u1ed9ng trong ph\u1ea1m vi gi\u1edbi h\u1ea1n \u0111\u00e3 bi\u1ebft. H\u00e3y xem th\u1ef1c t\u1ebf t\u0103ng c\u01b0\u1eddng t\u00ednh to\u00e1n kho\u1ea3ng c\u00e1ch nh\u01b0 th\u1ebf n\u00e0o, sai s\u1ed1 d\u1ef1 ki\u1ebfn l\u00e0 bao nhi\u00eau v\u00e0 khi n\u00e0o n\u00ean s\u1eed d\u1ee5ng th\u01b0\u1edbc d\u00e2y th\u1ef1c t\u1ebf.","breadcrumb":{"@id":"https:\/\/crismob.com\/descubra-os-melhores-aplicativos-de-trena-gratis\/#breadcrumb"},"inLanguage":"vi-eu","potentialAction":[{"@type":"ReadAction","target":["https:\/\/crismob.com\/descubra-os-melhores-aplicativos-de-trena-gratis\/"]}]},{"@type":"ImageObject","inLanguage":"vi-eu","@id":"https:\/\/crismob.com\/descubra-os-melhores-aplicativos-de-trena-gratis\/#primaryimage","url":"https:\/\/crismob.com\/wp-content\/uploads\/2025\/06\/Captura-de-tela-2025-07-30-024636.webp","contentUrl":"https:\/\/crismob.com\/wp-content\/uploads\/2025\/06\/Captura-de-tela-2025-07-30-024636.webp","width":503,"height":220},{"@type":"BreadcrumbList","@id":"https:\/\/crismob.com\/descubra-os-melhores-aplicativos-de-trena-gratis\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"In\u00edcio","item":"https:\/\/crismob.com\/"},{"@type":"ListItem","position":2,"name":"Aplicativos de Trena Gr\u00e1tis: O Que a Realidade Aumentada Mede"}]},{"@type":"WebSite","@id":"https:\/\/crismob.com\/vi_eu\/#website","url":"https:\/\/crismob.com\/vi_eu\/","name":"Crismob","description":"C\u00f4ng ngh\u1ec7 v\u00e0 th\u00f4ng tin","publisher":{"@id":"https:\/\/crismob.com\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/crismob.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"vi-eu"},{"@type":"Organization","@id":"https:\/\/crismob.com\/vi_eu\/#organization","name":"Crismob","url":"https:\/\/crismob.com\/vi_eu\/","logo":{"@type":"ImageObject","inLanguage":"vi-eu","@id":"https:\/\/crismob.com\/#\/schema\/logo\/image\/","url":"https:\/\/crismob.com\/wp-content\/uploads\/2025\/11\/cropped-ChatGPT-Image-17-de-nov.-de-2025-12_02_30.webp","contentUrl":"https:\/\/crismob.com\/wp-content\/uploads\/2025\/11\/cropped-ChatGPT-Image-17-de-nov.-de-2025-12_02_30.webp","width":1023,"height":341,"caption":"Crismob"},"image":{"@id":"https:\/\/crismob.com\/#\/schema\/logo\/image\/"}},{"@type":"Person","@id":"https:\/\/crismob.com\/#\/schema\/person\/1bbf606197a714392d8d24910a91b803","name":"Rodrigo Oliveira","image":{"@type":"ImageObject","inLanguage":"vi-eu","@id":"https:\/\/secure.gravatar.com\/avatar\/2ed3791d6d438d885fd44954de972454d91068acca6c93721fabc17db1fe9dfc?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/2ed3791d6d438d885fd44954de972454d91068acca6c93721fabc17db1fe9dfc?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/2ed3791d6d438d885fd44954de972454d91068acca6c93721fabc17db1fe9dfc?s=96&d=mm&r=g","caption":"Rodrigo Oliveira"},"sameAs":["http:\/\/crismob.com"],"url":"https:\/\/crismob.com\/vi_eu\/author\/raiphy\/"}]}},"_links":{"self":[{"href":"https:\/\/crismob.com\/vi_eu\/wp-json\/wp\/v2\/posts\/94744","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/crismob.com\/vi_eu\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/crismob.com\/vi_eu\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/crismob.com\/vi_eu\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/crismob.com\/vi_eu\/wp-json\/wp\/v2\/comments?post=94744"}],"version-history":[{"count":4,"href":"https:\/\/crismob.com\/vi_eu\/wp-json\/wp\/v2\/posts\/94744\/revisions"}],"predecessor-version":[{"id":95897,"href":"https:\/\/crismob.com\/vi_eu\/wp-json\/wp\/v2\/posts\/94744\/revisions\/95897"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/crismob.com\/vi_eu\/wp-json\/wp\/v2\/media\/94874"}],"wp:attachment":[{"href":"https:\/\/crismob.com\/vi_eu\/wp-json\/wp\/v2\/media?parent=94744"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/crismob.com\/vi_eu\/wp-json\/wp\/v2\/categories?post=94744"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/crismob.com\/vi_eu\/wp-json\/wp\/v2\/tags?post=94744"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}