{"id":274076,"date":"2023-10-18T21:06:48","date_gmt":"2023-10-18T14:06:48","guid":{"rendered":"https:\/\/hoanghamobile.com\/tin-tuc\/?p=274076"},"modified":"2023-10-18T21:06:48","modified_gmt":"2023-10-18T14:06:48","slug":"dinh-vi-gps","status":"publish","type":"post","link":"https:\/\/hoanghamobile.com\/tin-tuc\/dinh-vi-gps\/","title":{"rendered":"GPS l\u00e0 g\u00ec? \u1ee8ng d\u1ee5ng c\u1ee7a \u0111\u1ecbnh v\u1ecb to\u00e0n c\u1ea7u GPS"},"content":{"rendered":"

V\u1edbi s\u1ef1 h\u1ed7 tr\u1ee3 c\u1ee7a c\u00f4ng ngh\u1ec7, ch\u00fang ta c\u00f3 th\u1ec3 bi\u1ebft \u0111\u01b0\u1ee3c v\u1ecb tr\u00ed ch\u00ednh x\u00e1c c\u1ee7a m\u00ecnh ch\u1ec9 trong v\u00e0i gi\u00e2y. V\u00e0 khi n\u00f3i v\u1ec1 c\u00f4ng ngh\u1ec7 \u0111\u1ecbnh v\u1ecb, kh\u00f4ng th\u1ec3 kh\u00f4ng nh\u1eafc \u0111\u1ebfn \u0111\u1ecbnh v\u1ecb GPS<\/strong> – m\u1ed9t h\u1ec7 th\u1ed1ng \u0111\u1ecbnh v\u1ecb to\u00e0n c\u1ea7u \u0111\u00e3 thay \u0111\u1ed5i c\u00e1ch ch\u00fang ta t\u01b0\u01a1ng t\u00e1c v\u1edbi th\u1ebf gi\u1edbi xung quanh. V\u1eady th\u1ef1c ch\u1ea5t GPS l\u00e0 g\u00ec? C\u00f4ng ngh\u1ec7 n\u00e0y c\u00f3 g\u00ec \u0111\u1eb7c bi\u1ec7t? H\u00e3y c\u00f9ng Ho\u00e0ng H\u00e0 Mobile t\u00ecm hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 c\u00f4ng ngh\u1ec7 GPS trong b\u00e0i vi\u1ebft n\u00e0y nh\u00e9.<\/p>\n

T\u1ea5t t\u1ea7n t\u1eadt v\u1ec1 \u0111\u1ecbnh v\u1ecb GPS<\/h2>\n

Khi b\u1ea1n mu\u1ed1n bi\u1ebft v\u1ecb tr\u00ed c\u1ee7a m\u00ecnh tr\u00ean b\u1ea3n \u0111\u1ed3 hay mu\u1ed1n t\u00ecm \u0111\u01b0\u1eddng \u0111\u1ebfn m\u1ed9t \u0111\u1ecba \u0111i\u1ec3m m\u1edbi, c\u00f3 l\u1ebd b\u1ea1n \u0111\u00e3 t\u1eebng s\u1eed d\u1ee5ng m\u1ed9t thi\u1ebft b\u1ecb ho\u1eb7c \u1ee9ng d\u1ee5ng b\u1ea3n \u0111\u1ed3 \u0111i\u1ec7n t\u1eed. V\u1eady b\u1ea1n c\u00f3 bi\u1ebft r\u1eb1ng c\u00f4ng ngh\u1ec7 \u0111\u1eb1ng sau vi\u1ec7c x\u00e1c \u0111\u1ecbnh v\u1ecb tr\u00ed c\u1ee7a b\u1ea1n l\u00e0 g\u00ec kh\u00f4ng? Ch\u00ednh l\u00e0 nh\u1edd c\u00f4ng ngh\u1ec7 GPS.<\/p>\n

\"dinh-vi-gps\"<\/picture><\/p>\n

GPS l\u00e0 g\u00ec?<\/h3>\n

GPS, vi\u1ebft t\u1eaft c\u1ee7a Global Positioning System l\u00e0 m\u1ed9t h\u1ec7 th\u1ed1ng bao g\u1ed3m m\u1ed9t m\u1ea1ng l\u01b0\u1edbi v\u1ec7 tinh n\u1eb1m quanh Tr\u00e1i \u0110\u1ea5t, m\u00e1y thu GPS tr\u00ean m\u1eb7t \u0111\u1ea5t v\u00e0 c\u00e1c tr\u1ea1m ki\u1ec3m so\u00e1t tr\u00ean to\u00e0n c\u1ea7u. H\u1ec7 th\u1ed1ng n\u00e0y cho ph\u00e9p ng\u01b0\u1eddi d\u00f9ng x\u00e1c \u0111\u1ecbnh v\u1ecb tr\u00ed, t\u1ed1c \u0111\u1ed9, h\u01b0\u1edbng, v\u00e0 th\u1eddi gian, d\u00f9 \u1edf b\u1ea5t k\u1ef3 n\u01a1i n\u00e0o tr\u00ean Tr\u00e1i \u0110\u1ea5t. \u0110\u00e2y kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t c\u00f4ng ngh\u1ec7 m\u1edbi m\u1ebb, nh\u01b0ng v\u1edbi s\u1ef1 ph\u00e1t tri\u1ec3n kh\u00f4ng ng\u1eebng ngh\u1ec9, GPS \u0111\u00e3 tr\u1edf n\u00ean ph\u1ed5 bi\u1ebfn v\u00e0 d\u1ec5 ti\u1ebfp c\u1eadn h\u01a1n bao gi\u1edd h\u1ebft.<\/p>\n

V\u1eady \u0111\u1ecbnh v\u1ecb GPS ra \u0111\u1eddi t\u1eeb bao gi\u1edd v\u00e0 v\u00ec sao?<\/strong><\/p>\n

Tr\u00ean th\u1ef1c t\u1ebf, h\u1ec7 th\u1ed1ng GPS b\u1eaft \u0111\u1ea7u \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n v\u00e0o nh\u1eefng n\u0103m 1970 b\u1edfi B\u1ed9 Qu\u1ed1c ph\u00f2ng Hoa K\u1ef3. Ban \u0111\u1ea7u, n\u00f3 \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf nh\u1eb1m m\u1ee5c \u0111\u00edch qu\u00e2n s\u1ef1, gi\u00fap cho qu\u00e2n \u0111\u1ed9i c\u00f3 th\u1ec3 \u0111\u1ecbnh v\u1ecb ch\u00ednh x\u00e1c v\u1ecb tr\u00ed c\u1ee7a h\u1ecd m\u1ecdi l\u00fac, m\u1ecdi n\u01a1i.<\/p>\n

Tuy nhi\u00ean, v\u00e0o n\u0103m 1983, sau m\u1ed9t bi\u1ebfn c\u1ed1 m\u00e1y bay H\u00e0n Qu\u1ed1c b\u1ecb b\u1eafn h\u1ea1 khi l\u1ea1c v\u00e0o kh\u00f4ng ph\u1eadn Li\u00ean X\u00f4, T\u1ed5ng th\u1ed1ng Ronald Reagan \u0111\u00e3 quy\u1ebft \u0111\u1ecbnh m\u1edf r\u1ed9ng vi\u1ec7c s\u1eed d\u1ee5ng GPS cho m\u1ee5c \u0111\u00edch d\u00e2n s\u1ef1. \u0110i\u1ec1u n\u00e0y \u0111\u00e3 m\u1edf ra m\u1ed9t c\u01a1 h\u1ed9i l\u1edbn cho vi\u1ec7c ph\u00e1t tri\u1ec3n v\u00e0 \u1ee9ng d\u1ee5ng \u0111\u1ecbnh v\u1ecb GPS trong nhi\u1ec1u l\u0129nh v\u1ef1c kh\u00e1c ngo\u00e0i qu\u00e2n s\u1ef1.<\/p>\n

\"dinh-vi-gps-1\"<\/picture><\/p>\n

V\u1edbi s\u1ef1 ti\u1ebfn b\u1ed9 c\u1ee7a c\u00f4ng ngh\u1ec7, h\u1ec7 th\u1ed1ng GPS \u0111\u00e3 tr\u1edf n\u00ean ng\u00e0y c\u00e0ng ch\u00ednh x\u00e1c v\u00e0 ph\u1ed5 bi\u1ebfn. C\u00e1c thi\u1ebft b\u1ecb \u0111\u1ecbnh v\u1ecb GPS<\/strong> d\u1ea7n d\u1ea7n xu\u1ea5t hi\u1ec7n trong cu\u1ed9c s\u1ed1ng h\u00e0ng ng\u00e0y c\u1ee7a ch\u00fang ta, t\u1eeb c\u00e1c thi\u1ebft b\u1ecb \u0111\u1ecbnh v\u1ecb tr\u00ean \u00f4 t\u00f4, \u0111i\u1ec7n tho\u1ea1i th\u00f4ng minh cho \u0111\u1ebfn \u0111\u1ed3ng h\u1ed3 th\u00f4ng minh v\u00e0 c\u00e1c thi\u1ebft b\u1ecb gi\u1ea3i tr\u00ed kh\u00e1c.<\/p>\n

C\u00e1ch ho\u1ea1t \u0111\u1ed9ng c\u1ee7a GPS<\/h3>\n

Khi ch\u00fang ta n\u00f3i v\u1ec1 c\u00f4ng ngh\u1ec7 GPS, \u0111i\u1ec1u \u0111\u1ea7u ti\u00ean c\u1ea7n hi\u1ec3u l\u00e0 c\u01a1 ch\u1ebf ho\u1ea1t \u0111\u1ed9ng c\u1ee7a n\u00f3. L\u00e0m th\u1ebf n\u00e0o m\u1ed9t thi\u1ebft b\u1ecb nh\u1ecf b\u00e9 c\u00f3 th\u1ec3 cho bi\u1ebft v\u1ecb tr\u00ed c\u1ee7a b\u1ea1n m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c tr\u00ean b\u1ec1 m\u1eb7t Tr\u00e1i \u0110\u1ea5t? \u0110\u1ec3 tr\u1ea3 l\u1eddi c\u00e2u h\u1ecfi n\u00e0y, h\u00e3y c\u00f9ng t\u00ecm hi\u1ec3u s\u00e2u h\u01a1n v\u1ec1 c\u01a1 ch\u1ebf ho\u1ea1t \u0111\u1ed9ng c\u1ee7a GPS.<\/p>\n

S\u01a1 l\u01b0\u1ee3c v\u1ec1 c\u01a1 ch\u1ebf ho\u1ea1t \u0111\u1ed9ng c\u1ee7a GPS: T\u1eeb v\u1ec7 tinh \u0111\u1ebfn m\u00e1y thu GPS<\/strong><\/p>\n

H\u1ec7 th\u1ed1ng \u0111\u1ecbnh v\u1ecb GPS<\/strong> ho\u1ea1t \u0111\u1ed9ng d\u1ef1a tr\u00ean m\u1ed9t m\u1ea1ng l\u01b0\u1edbi v\u1ec7 tinh quay xung quanh Tr\u00e1i \u0110\u1ea5t. M\u1ed7i v\u1ec7 tinh s\u1ebd t\u1ef1 \u0111\u1ed9ng ph\u00e1t t\u00edn hi\u1ec7u li\u00ean quan \u0111\u1ebfn th\u1eddi gian v\u00e0 v\u1ecb tr\u00ed c\u1ee7a n\u00f3. M\u00e1y thu GPS tr\u00ean m\u1eb7t \u0111\u1ea5t s\u1ebd nh\u1eadn t\u00edn hi\u1ec7u t\u1eeb \u00edt nh\u1ea5t b\u1ed1n v\u1ec7 tinh \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh v\u1ecb tr\u00ed c\u1ee5 th\u1ec3 c\u1ee7a ng\u01b0\u1eddi d\u00f9ng.<\/p>\n

\"dinh-vi-gps-cach-hoat-dong\"<\/picture><\/p>\n

T\u00edn hi\u1ec7u v\u00e0 c\u01a1 ch\u1ebf x\u00e1c \u0111\u1ecbnh v\u1ecb tr\u00ed<\/strong><\/p>\n

Khi m\u00e1y thu GPS nh\u1eadn t\u00edn hi\u1ec7u t\u1eeb v\u1ec7 tinh, n\u00f3 s\u1ebd t\u00ednh to\u00e1n kho\u1ea3ng c\u00e1ch gi\u1eefa m\u00e1y thu v\u00e0 m\u1ed7i v\u1ec7 tinh d\u1ef1a tr\u00ean th\u1eddi gian t\u00edn hi\u1ec7u \u0111\u01b0\u1ee3c truy\u1ec1n. V\u1edbi th\u00f4ng tin v\u1ec1 kho\u1ea3ng c\u00e1ch t\u1eeb ba ho\u1eb7c b\u1ed1n v\u1ec7 tinh kh\u00e1c nhau, m\u00e1y thu s\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p trilateration \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh v\u1ecb tr\u00ed ch\u00ednh x\u00e1c c\u1ee7a m\u00ecnh tr\u00ean b\u1ec1 m\u1eb7t Tr\u00e1i \u0110\u1ea5t.<\/p>\n

S\u01a1 l\u01b0\u1ee3c th\u00e0nh ph\u1ea7n quan tr\u1ecdng c\u1ee7a h\u1ec7 th\u1ed1ng \u0111\u1ecbnh v\u1ecb GPS<\/h3>\n

V\u1ec7 tinh (Space Segment)<\/strong>: \u0110\u00e2y l\u00e0 nh\u00f3m v\u1ec7 tinh quay xung quanh Tr\u00e1i \u0110\u1ea5t, th\u01b0\u1eddng \u1edf \u0111\u1ed9 cao kho\u1ea3ng 20.000 km. C\u00e1c v\u1ec7 tinh n\u00e0y ph\u00e1t t\u00edn hi\u1ec7u v\u1ec1 v\u1ecb tr\u00ed v\u00e0 th\u1eddi gian c\u1ee7a ch\u00fang \u0111\u1ebfn m\u00e1y thu GPS.<\/p>\n

M\u00e1y thu (User Segment)<\/strong>: \u0110\u00e2y l\u00e0 thi\u1ebft b\u1ecb m\u00e0 ng\u01b0\u1eddi d\u00f9ng s\u1eed d\u1ee5ng, t\u1eeb \u0111i\u1ec7n tho\u1ea1i th\u00f4ng minh, \u0111\u1ed3ng h\u1ed3, \u0111\u1ebfn c\u00e1c h\u1ec7 th\u1ed1ng \u0111\u1ecbnh v\u1ecb tr\u00ean \u00f4 t\u00f4 ho\u1eb7c m\u00e1y bay. Ch\u00fang nh\u1eadn t\u00edn hi\u1ec7u t\u1eeb v\u1ec7 tinh v\u00e0 x\u1eed l\u00fd th\u00f4ng tin \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh v\u1ecb tr\u00ed, t\u1ed1c \u0111\u1ed9, v\u00e0 h\u01b0\u1edbng c\u1ee7a ng\u01b0\u1eddi d\u00f9ng.<\/p>\n

\"dinh-vi-gps-thanh-phan-chinh\"<\/picture><\/p>\n

Tr\u1ea1m \u0111\u1ea5t (Control Segment)<\/strong>: C\u00e1c tr\u1ea1m n\u00e0y n\u1eb1m r\u1ea3i r\u00e1c tr\u00ean kh\u1eafp th\u1ebf gi\u1edbi v\u00e0 gi\u00e1m s\u00e1t ho\u1ea1t \u0111\u1ed9ng c\u1ee7a v\u1ec7 tinh, \u0111\u1ea3m b\u1ea3o ch\u00fang ho\u1ea1t \u0111\u1ed9ng ch\u00ednh x\u00e1c v\u00e0 \u1ed5n \u0111\u1ecbnh. Tr\u1ea1m \u0111\u1ea5t c\u0169ng c\u00f3 nhi\u1ec7m v\u1ee5 \u0111i\u1ec1u ch\u1ec9nh l\u1ecbch tr\u00ecnh v\u00e0 qu\u1ef9 \u0111\u1ea1o c\u1ee7a v\u1ec7 tinh khi c\u1ea7n thi\u1ebft.<\/p>\n

Nh\u01b0 v\u1eady, th\u00f4ng qua s\u1ef1 k\u1ebft h\u1ee3p gi\u1eefa c\u00e1c v\u1ec7 tinh, m\u00e1y thu v\u00e0 tr\u1ea1m \u0111\u1ea5t, h\u1ec7 th\u1ed1ng \u0111\u1ecbnh v\u1ecb GPS<\/strong> cung c\u1ea5p th\u00f4ng tin v\u1ecb tr\u00ed ch\u00ednh x\u00e1c. T\u1eeb \u0111\u00f3 gi\u00fap ch\u00fang ta d\u1ec5 d\u00e0ng \u0111\u1ecbnh h\u01b0\u1edbng v\u00e0 t\u01b0\u01a1ng t\u00e1c v\u1edbi th\u1ebf gi\u1edbi xung quanh.<\/p>\n

\u1ee8ng d\u1ee5ng th\u1ef1c t\u1ebf c\u1ee7a \u0111\u1ecbnh v\u1ecb to\u00e0n c\u1ea7u GPS<\/h2>\n

C\u00f4ng ngh\u1ec7 GPS kh\u00f4ng ch\u1ec9 l\u00e0 m\u1ed9t c\u00f4ng ngh\u1ec7 \u0111\u1ecbnh v\u1ecb m\u00e0 c\u00f2n \u0111\u00e3 bi\u1ebfn \u0111\u1ed5i nhi\u1ec1u kh\u00eda c\u1ea1nh c\u1ee7a cu\u1ed9c s\u1ed1ng h\u00e0ng ng\u00e0y v\u00e0 ng\u00e0nh c\u00f4ng nghi\u1ec7p. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 \u1ee9ng d\u1ee5ng ph\u1ed5 bi\u1ebfn c\u1ee7a GPS:<\/p>\n

Trong giao th\u00f4ng v\u1eadn t\u1ea3i<\/h3>\n

H\u01b0\u1edbng d\u1eabn \u0111\u01b0\u1eddng \u0111i cho xe \u00f4 t\u00f4, xe m\u00e1y<\/strong>: Tr\u01b0\u1edbc \u0111\u00e2y, khi mu\u1ed1n \u0111i \u0111\u1ebfn m\u1ed9t \u0111\u1ecba \u0111i\u1ec3m m\u1edbi, ch\u00fang ta th\u01b0\u1eddng ph\u1ea3i d\u1ef1a v\u00e0o b\u1ea3n \u0111\u1ed3 gi\u1ea5y v\u00e0 h\u1ecfi \u0111\u01b0\u1eddng. Nh\u01b0ng ng\u00e0y nay, v\u1edbi c\u00f4ng ngh\u1ec7 GPS, ch\u1ec9 c\u1ea7n nh\u1eadp \u0111\u1ecba ch\u1ec9 \u0111\u00edch, h\u1ec7 th\u1ed1ng s\u1ebd cung c\u1ea5p cho b\u1ea1n h\u01b0\u1edbng d\u1eabn chi ti\u1ebft t\u1eebng b\u01b0\u1edbc \u0111i, t\u1eeb \u0111\u00f3 gi\u00fap b\u1ea1n d\u1ec5 d\u00e0ng di chuy\u1ec3n m\u00e0 kh\u00f4ng s\u1ee3 l\u1ea1c \u0111\u01b0\u1eddng.<\/p>\n

\"dinh-vi-gps-ung-dung\"<\/picture><\/p>\n

Theo d\u00f5i v\u00e0 qu\u1ea3n l\u00fd ph\u01b0\u01a1ng ti\u1ec7n v\u1eadn t\u1ea3i<\/strong>: C\u00e1c c\u00f4ng ty v\u1eadn t\u1ea3i l\u1edbn s\u1eed d\u1ee5ng \u0111\u1ecbnh v\u1ecb GPS<\/strong> \u0111\u1ec3 theo d\u00f5i v\u1ecb tr\u00ed c\u1ee7a \u0111\u1ed9i xe c\u1ee7a h\u1ecd. \u0110i\u1ec1u n\u00e0y gi\u00fap h\u1ecd qu\u1ea3n l\u00fd l\u1ed9 tr\u00ecnh, th\u1eddi gian d\u1ef1 ki\u1ebfn \u0111\u1ebfn \u0111i\u1ec3m \u0111\u00edch v\u00e0 gi\u00e1m s\u00e1t hi\u1ec7u su\u1ea5t l\u00e0m vi\u1ec7c c\u1ee7a t\u00e0i x\u1ebf. B\u00ean c\u1ea1nh \u0111\u00f3, vi\u1ec7c s\u1eed d\u1ee5ng GPS c\u0169ng gi\u00fap t\u1ed1i \u01b0u h\u00f3a l\u1ed9 tr\u00ecnh v\u00e0 ti\u1ebft ki\u1ec7m nhi\u00ean li\u1ec7u.<\/p>\n

Trong \u0111i\u1ec7n tho\u1ea1i th\u00f4ng minh<\/h3>\n

\u1ee8ng d\u1ee5ng \u0111\u1ecbnh v\u1ecb tr\u00ean smartphone<\/strong>: Ngo\u00e0i vi\u1ec7c s\u1eed d\u1ee5ng \u0111\u1ec3 t\u00ecm \u0111\u01b0\u1eddng, GPS tr\u00ean smartphone c\u00f2n h\u1ed7 tr\u1ee3 nhi\u1ec1u \u1ee9ng d\u1ee5ng kh\u00e1c nh\u01b0 th\u1ec3 thao, gi\u00e1o d\u1ee5c, du l\u1ecbch v\u00e0 mua s\u1eafm. V\u00ed d\u1ee5, khi b\u1ea1n ch\u1ea1y b\u1ed9, \u1ee9ng d\u1ee5ng ch\u1ea1y b\u1ed9 s\u1ebd s\u1eed d\u1ee5ng GPS \u0111\u1ec3 theo d\u00f5i qu\u00e3ng \u0111\u01b0\u1eddng, t\u1ed1c \u0111\u1ed9 v\u00e0 l\u1ed9 tr\u00ecnh c\u1ee7a b\u1ea1n. Ho\u1eb7c khi du l\u1ecbch, \u1ee9ng d\u1ee5ng du l\u1ecbch c\u00f3 th\u1ec3 d\u1ef1a v\u00e0o v\u1ecb tr\u00ed c\u1ee7a b\u1ea1n \u0111\u1ec3 \u0111\u1ec1 xu\u1ea5t c\u00e1c \u0111i\u1ec3m tham quan g\u1ea7n \u0111\u00f3.<\/p>\n

\"dinh-vi-gps-ung-dung-1\"<\/picture><\/p>\n

T\u00ecm ki\u1ebfm v\u00e0 \u0111\u1ecbnh v\u1ecb thi\u1ebft b\u1ecb b\u1ecb m\u1ea5t<\/strong>: M\u1ea5t \u0111i\u1ec7n tho\u1ea1i l\u00e0 m\u1ed9t tr\u1ea3i nghi\u1ec7m \u0111\u00e1ng s\u1ee3 cho nhi\u1ec1u ng\u01b0\u1eddi. Tuy nhi\u00ean, v\u1edbi c\u00f4ng ngh\u1ec7 GPS, b\u1ea1n c\u00f3 th\u1ec3 t\u00ecm l\u1ea1i \u0111i\u1ec7n tho\u1ea1i c\u1ee7a m\u00ecnh nhanh ch\u00f3ng. H\u1ea7u h\u1ebft c\u00e1c h\u1ec7 \u0111i\u1ec1u h\u00e0nh \u0111i\u1ec7n tho\u1ea1i hi\u1ec7n \u0111\u1ea1i \u0111\u1ec1u c\u00f3 t\u00ednh n\u0103ng t\u00ecm ki\u1ebfm thi\u1ebft b\u1ecb b\u1ecb m\u1ea5t d\u1ef1a tr\u00ean v\u1ecb tr\u00ed GPS, gi\u00fap b\u1ea1n x\u00e1c \u0111\u1ecbnh v\u1ecb tr\u00ed ch\u00ednh x\u00e1c c\u1ee7a thi\u1ebft b\u1ecb v\u00e0 c\u00f3 c\u01a1 h\u1ed9i l\u1ea5y l\u1ea1i n\u00f3.<\/p>\n

\u1ee8ng d\u1ee5ng c\u1ee7a \u0111\u1ecbnh v\u1ecb GPS trong ng\u00e0nh h\u00e0ng kh\u00f4ng<\/h3>\n

\u0110\u1ecbnh v\u1ecb v\u00e0 h\u01b0\u1edbng d\u1eabn \u0111\u01b0\u1eddng bay cho m\u00e1y bay<\/strong>: M\u00e1y bay s\u1eed d\u1ee5ng c\u00f4ng ngh\u1ec7 GPS \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh v\u1ecb tr\u00ed ch\u00ednh x\u00e1c c\u1ee7a ch\u00fang tr\u00ean b\u1ea7u tr\u1eddi v\u00e0 tr\u00ean m\u1eb7t \u0111\u1ea5t. H\u1ec7 th\u1ed1ng n\u00e0y gi\u00fap m\u00e1y bay x\u00e1c \u0111\u1ecbnh l\u1ed9 tr\u00ecnh bay, gi\u1ea3m thi\u1ec3u r\u1ee7i ro va ch\u1ea1m v\u00e0 t\u1ed1i \u01b0u h\u00f3a vi\u1ec7c ti\u1ebft ki\u1ec7m nhi\u00ean li\u1ec7u.<\/p>\n

\"dinh-vi-gps-ung-dung-2\"<\/picture><\/p>\n

\u1ee8ng d\u1ee5ng trong qu\u1ea3n l\u00fd kh\u00f4ng gian kh\u00f4ng l\u01b0u<\/strong>: C\u00f4ng ngh\u1ec7 GPS gi\u00fap c\u00e1c trung t\u00e2m ki\u1ec3m so\u00e1t kh\u00f4ng l\u01b0u qu\u1ea3n l\u00fd kh\u00f4ng gian bay m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3 h\u01a1n, \u0111\u1ea3m b\u1ea3o an to\u00e0n cho t\u1ea5t c\u1ea3 c\u00e1c m\u00e1y bay \u0111ang ho\u1ea1t \u0111\u1ed9ng trong kh\u00f4ng gian \u0111\u00f3. Vi\u1ec7c s\u1eed d\u1ee5ng d\u1eef li\u1ec7u GPS c\u0169ng gi\u00fap gi\u1ea3m thi\u1ec3u vi\u1ec7c tr\u1ec5 chuy\u1ebfn v\u00e0 t\u0103ng hi\u1ec7u su\u1ea5t ho\u1ea1t \u0111\u1ed9ng.<\/p>\n

Trong n\u00f4ng nghi\u1ec7p<\/h3>\n

Qu\u1ea3n l\u00fd v\u00e0 \u0111\u1ecbnh v\u1ecb m\u1ee5c ti\u00eau tr\u00ean \u0111\u1ea5t canh t\u00e1c<\/strong>: \u0110\u1ecbnh v\u1ecb GPS gi\u00fap n\u00f4ng d\u00e2n x\u00e1c \u0111\u1ecbnh v\u1ecb tr\u00ed ch\u00ednh x\u00e1c c\u1ee7a c\u00e1c m\u1ee5c ti\u00eau c\u1ea7n canh t\u00e1c nh\u01b0 vi\u1ec7c gieo tr\u1ed3ng ho\u1eb7c b\u00f3n ph\u00e2n. \u0110i\u1ec1u n\u00e0y \u0111\u1ea3m b\u1ea3o r\u1eb1ng m\u1ed7i ph\u1ea7n c\u1ee7a l\u00f4 \u0111\u1ea5t \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3 v\u00e0 kh\u00f4ng b\u1ecb l\u00e3ng ph\u00ed.<\/p>\n

\"dinh-vi-gps-ung-dung-3\"<\/picture><\/p>\n

\u1ee8ng d\u1ee5ng trong n\u00f4ng nghi\u1ec7p ch\u00ednh x\u00e1c<\/strong>: N\u00f4ng nghi\u1ec7p ch\u00ednh x\u00e1c s\u1eed d\u1ee5ng c\u00f4ng ngh\u1ec7 GPS \u0111\u1ec3 \u00e1p d\u1ee5ng c\u00e1c bi\u1ec7n ph\u00e1p canh t\u00e1c d\u1ef1a tr\u00ean d\u1eef li\u1ec7u v\u1ecb tr\u00ed ch\u00ednh x\u00e1c. \u0110i\u1ec1u n\u00e0y gi\u00fap n\u00f4ng d\u00e2n t\u1ed1i \u01b0u h\u00f3a vi\u1ec7c s\u1eed d\u1ee5ng n\u01b0\u1edbc, ph\u00e2n b\u00f3n v\u00e0 h\u00f3a ch\u1ea5t, t\u1eeb \u0111\u00f3 gia t\u0103ng n\u0103ng su\u1ea5t v\u00e0 gi\u1ea3m thi\u1ec3u t\u00e1c \u0111\u1ed9ng \u0111\u1ebfn m\u00f4i tr\u01b0\u1eddng.<\/p>\n

\u1ee8ng d\u1ee5ng kh\u00e1c c\u1ee7a \u0111\u1ecbnh v\u1ecb GPS<\/h3>\n

Khi n\u00f3i \u0111\u1ebfn c\u00f4ng ngh\u1ec7 GPS, nhi\u1ec1u ng\u01b0\u1eddi th\u01b0\u1eddng ngh\u0129 ngay \u0111\u1ebfn vi\u1ec7c h\u01b0\u1edbng d\u1eabn \u0111\u01b0\u1eddng ho\u1eb7c x\u00e1c \u0111\u1ecbnh v\u1ecb tr\u00ed tr\u00ean \u0111i\u1ec7n tho\u1ea1i th\u00f4ng minh. Tuy nhi\u00ean, \u1ee9ng d\u1ee5ng c\u1ee7a h\u1ec7 th\u1ed1ng n\u00e0y kh\u00f4ng ch\u1ec9 d\u1eebng l\u1ea1i \u1edf \u0111\u00f3. H\u00e3y c\u00f9ng kh\u00e1m ph\u00e1 m\u1ed9t s\u1ed1 \u1ee9ng d\u1ee5ng kh\u00e1c c\u1ee7a GPS:<\/p>\n

Trong nghi\u00ean c\u1ee9u khoa h\u1ecdc v\u00e0 d\u1ef1 b\u00e1o th\u1eddi ti\u1ebft<\/strong>: C\u00e1c nh\u00e0 khoa h\u1ecdc s\u1eed d\u1ee5ng c\u00f4ng ngh\u1ec7 GPS \u0111\u1ec3 thu th\u1eadp d\u1eef li\u1ec7u v\u1ec1 m\u00f4i tr\u01b0\u1eddng, t\u1eeb \u0111\u00f3 gi\u00fap d\u1ef1 b\u00e1o th\u1eddi ti\u1ebft ch\u00ednh x\u00e1c v\u00e0 hi\u1ec7u qu\u1ea3 h\u01a1n. V\u00ed d\u1ee5, d\u1ef1a v\u00e0o d\u1eef li\u1ec7u t\u1eeb GPS, c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u c\u00f3 th\u1ec3 theo d\u00f5i s\u1ef1 di chuy\u1ec3n c\u1ee7a c\u00e1c m\u1ea3ng l\u1ee5c \u0111\u1ecba v\u00e0 d\u1ef1 b\u00e1o c\u00e1c bi\u1ebfn \u0111\u1ed5i kh\u00ed h\u1eadu.<\/p>\n

\"dinh-vi-gps-ung-dung-4\"<\/picture><\/p>\n

Trong qu\u1ea3n l\u00fd v\u00e0 gi\u00e1m s\u00e1t m\u00f4i tr\u01b0\u1eddng<\/strong>: \u0110\u1ecbnh v\u1ecb GPS<\/strong> \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong vi\u1ec7c theo d\u00f5i s\u1ef1 di chuy\u1ec3n c\u1ee7a \u0111\u1ed9ng v\u1eadt hoang d\u00e3, gi\u00fap b\u1ea3o v\u1ec7 ch\u00fang kh\u1ecfi nguy c\u01a1 s\u0103n b\u1eafn tr\u00e1i ph\u00e9p. B\u00ean c\u1ea1nh \u0111\u00f3, h\u1ec7 th\u1ed1ng n\u00e0y c\u0169ng h\u1ed7 tr\u1ee3 vi\u1ec7c gi\u00e1m s\u00e1t ch\u1ea5t l\u01b0\u1ee3ng kh\u00f4ng kh\u00ed, ngu\u1ed3n n\u01b0\u1edbc v\u00e0 c\u00e1c y\u1ebfu t\u1ed1 m\u00f4i tr\u01b0\u1eddng kh\u00e1c.<\/p>\n

Trong gi\u1ea3i tr\u00ed v\u00e0 th\u1ec3 thao ngo\u1ea1i tr\u1eddi<\/strong>: C\u00e1c t\u00edn \u0111\u1ed3 y\u00eau th\u1ec3 thao ngo\u1ea1i tr\u1eddi, nh\u01b0 trekking, leo n\u00fai hay \u0111\u1ea1p xe \u0111\u1ea1p, th\u01b0\u1eddng s\u1eed d\u1ee5ng c\u00f4ng ngh\u1ec7 GPS \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh l\u1ed9 tr\u00ecnh c\u1ee7a m\u00ecnh, \u0111\u1ea3m b\u1ea3o an to\u00e0n v\u00e0 tr\u00e1nh l\u1ea1c h\u01b0\u1edbng. Trong gi\u1edbi gi\u1ea3i tr\u00ed, tr\u00f2 ch\u01a1i nh\u01b0 “Geocaching” c\u0169ng d\u1ef1a tr\u00ean GPS, gi\u00fap ng\u01b0\u1eddi ch\u01a1i t\u00ecm ki\u1ebfm v\u00e0 t\u00ecm ra c\u00e1c “kho b\u00e1u” \u1ea9n gi\u1ea5u d\u1ef1a tr\u00ean t\u1ecda \u0111\u1ed9 GPS.<\/p>\n

Nh\u1eefng h\u1ea1n ch\u1ebf c\u1ee7a \u0111\u1ecbnh v\u1ecb GPS v\u00e0 c\u00e1ch kh\u1eafc ph\u1ee5c<\/h2>\n

Khi n\u00f3i v\u1ec1 c\u00f4ng ngh\u1ec7 GPS, kh\u00f4ng th\u1ec3 kh\u00f4ng nh\u1eafc \u0111\u1ebfn nh\u1eefng \u01b0u \u0111i\u1ec3m m\u00e0 n\u00f3 mang l\u1ea1i, nh\u01b0 kh\u1ea3 n\u0103ng x\u00e1c \u0111\u1ecbnh v\u1ecb tr\u00ed ch\u00ednh x\u00e1c, h\u01b0\u1edbng d\u1eabn \u0111\u01b0\u1eddng \u0111i ti\u1ec7n l\u1ee3i v\u00e0 nhi\u1ec1u ti\u1ec7n \u00edch kh\u00e1c. Tuy nhi\u00ean, nh\u01b0 m\u1ecdi c\u00f4ng ngh\u1ec7 kh\u00e1c, GPS c\u0169ng c\u00f3 nh\u1eefng h\u1ea1n ch\u1ebf ri\u00eang. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 h\u1ea1n ch\u1ebf ti\u00eau bi\u1ec3u v\u00e0 c\u00e1ch kh\u1eafc ph\u1ee5c ch\u00fang:<\/p>\n

T\u00edn hi\u1ec7u y\u1ebfu trong \u0111i\u1ec1u ki\u1ec7n kh\u00f3 kh\u0103n<\/strong><\/p>\n

H\u1ea1n ch\u1ebf: Trong m\u00f4i tr\u01b0\u1eddng c\u00f3 nhi\u1ec1u t\u00f2a nh\u00e0 cao t\u1ea7ng ho\u1eb7c khu v\u1ef1c r\u1eebng r\u1eadm, t\u00edn hi\u1ec7u GPS c\u00f3 th\u1ec3 b\u1ecb gi\u1ea3m s\u00fat ho\u1eb7c m\u1ea5t ho\u00e0n to\u00e0n.<\/p>\n

C\u00e1ch kh\u1eafc ph\u1ee5c: S\u1eed d\u1ee5ng c\u00e1c thi\u1ebft b\u1ecb GPS v\u1edbi anten m\u1ea1nh m\u1ebd h\u01a1n ho\u1eb7c k\u1ebft h\u1ee3p v\u1edbi c\u00e1c c\u00f4ng ngh\u1ec7 \u0111\u1ecbnh v\u1ecb kh\u00e1c nh\u01b0 GLONASS ho\u1eb7c BeiDou \u0111\u1ec3 n\u00e2ng cao \u0111\u1ed9 ch\u00ednh x\u00e1c.<\/p>\n

\"dinh-vi-gps-han-che\"<\/picture><\/p>\n

\u0110\u1ed9 tr\u1ec5 t\u00edn hi\u1ec7u<\/strong><\/p>\n

H\u1ea1n ch\u1ebf: C\u00f3 th\u1ec3 c\u00f3 \u0111\u1ed9 tr\u1ec5 gi\u1eefa th\u1eddi \u0111i\u1ec3m t\u00edn hi\u1ec7u c\u00f4ng ngh\u1ec7 GPS \u0111\u01b0\u1ee3c nh\u1eadn v\u00e0 th\u1eddi gian th\u1ef1c t\u1ebf, g\u00e2y ra sai l\u1ec7ch trong vi\u1ec7c x\u00e1c \u0111\u1ecbnh v\u1ecb tr\u00ed.<\/p>\n

C\u00e1ch kh\u1eafc ph\u1ee5c: S\u1eed d\u1ee5ng c\u00e1c thu\u1eadt to\u00e1n v\u00e0 ph\u1ea7n m\u1ec1m c\u1ea3i ti\u1ebfn \u0111\u1ec3 gi\u1ea3m thi\u1ec3u \u0111\u1ed9 tr\u1ec5 v\u00e0 c\u1ea3i thi\u1ec7n t\u1ed1c \u0111\u1ed9 x\u1eed l\u00fd t\u00edn hi\u1ec7u.<\/p>\n

Gi\u1edbi h\u1ea1n trong vi\u1ec7c x\u00e1c \u0111\u1ecbnh \u0111\u1ed9 cao<\/strong><\/p>\n

H\u1ea1n ch\u1ebf: \u0110\u1ecbnh v\u1ecb GPS<\/strong> th\u01b0\u1eddng ch\u00ednh x\u00e1c h\u01a1n khi x\u00e1c \u0111\u1ecbnh v\u1ecb tr\u00ed ngang h\u01a1n l\u00e0 \u0111\u1ed9 cao.<\/p>\n

C\u00e1ch kh\u1eafc ph\u1ee5c: K\u1ebft h\u1ee3p s\u1eed d\u1ee5ng c\u00e1c c\u1ea3m bi\u1ebfn kh\u00e1c nh\u01b0 altimeter barometric \u0111\u1ec3 n\u00e2ng cao \u0111\u1ed9 ch\u00ednh x\u00e1c trong vi\u1ec7c x\u00e1c \u0111\u1ecbnh \u0111\u1ed9 cao.<\/p>\n

\"dinh-vi-gps-han-che-1\"<\/picture><\/p>\n

Ngu\u1ed3n n\u0103ng l\u01b0\u1ee3ng gi\u1edbi h\u1ea1n<\/strong><\/p>\n

H\u1ea1n ch\u1ebf: Thi\u1ebft b\u1ecb GPS th\u01b0\u1eddng ti\u00eau th\u1ee5 n\u0103ng l\u01b0\u1ee3ng nhanh, \u0111\u1eb7c bi\u1ec7t khi ho\u1ea1t \u0111\u1ed9ng li\u00ean t\u1ee5c.<\/p>\n

C\u00e1ch kh\u1eafc ph\u1ee5c: S\u1eed d\u1ee5ng c\u00e1c pin c\u00f3 dung l\u01b0\u1ee3ng cao h\u01a1n, t\u1ed1i \u01b0u h\u00f3a ph\u1ea7n m\u1ec1m v\u00e0 t\u1eaft GPS khi kh\u00f4ng c\u1ea7n thi\u1ebft.<\/p>\n

M\u1ed9t s\u1ed1 l\u01b0u \u00fd khi s\u1eed d\u1ee5ng c\u00f4ng ngh\u1ec7 GPS<\/h2>\n

Nh\u01b0 \u0111\u00e3 \u0111\u1ec1 c\u1eadp, \u0111\u1ecbnh v\u1ecb GPS<\/strong> \u0111\u00e3 tr\u1edf th\u00e0nh m\u1ed9t ph\u1ea7n kh\u00f4ng th\u1ec3 thi\u1ebfu trong cu\u1ed9c s\u1ed1ng h\u00e0ng ng\u00e0y c\u1ee7a ch\u00fang ta, t\u1eeb vi\u1ec7c h\u01b0\u1edbng d\u1eabn \u0111\u01b0\u1eddng cho xe h\u01a1i \u0111\u1ebfn vi\u1ec7c x\u00e1c \u0111\u1ecbnh v\u1ecb tr\u00ed trong c\u00e1c \u1ee9ng d\u1ee5ng di \u0111\u1ed9ng. Tuy nhi\u00ean, \u0111\u1ec3 s\u1eed d\u1ee5ng GPS m\u1ed9t c\u00e1ch an to\u00e0n v\u00e0 hi\u1ec7u qu\u1ea3, c\u1ea7n ph\u1ea3i l\u01b0u \u00fd m\u1ed9t s\u1ed1 \u0111i\u1ec1u quan tr\u1ecdng.<\/p>\n

T\u1ea3i c\u1eadp nh\u1eadt th\u01b0\u1eddng xuy\u00ean<\/strong>: \u0110\u1ea3m b\u1ea3o r\u1eb1ng b\u1ea1n \u0111ang s\u1eed d\u1ee5ng phi\u00ean b\u1ea3n ph\u1ea7n m\u1ec1m GPS m\u1edbi nh\u1ea5t. C\u1eadp nh\u1eadt th\u01b0\u1eddng xuy\u00ean gi\u00fap t\u0103ng \u0111\u1ed9 ch\u00ednh x\u00e1c v\u00e0 c\u1ea3i thi\u1ec7n t\u00ednh n\u0103ng.<\/p>\n

Kh\u1edfi \u0111\u1ed9ng tr\u01b0\u1edbc khi \u0111i<\/strong>: B\u1eadt GPS v\u00e0i ph\u00fat tr\u01b0\u1edbc khi b\u1ea1n b\u1eaft \u0111\u1ea7u di chuy\u1ec3n \u0111\u1ec3 thi\u1ebft b\u1ecb c\u00f3 th\u1eddi gian nh\u1eadn di\u1ec7n t\u00edn hi\u1ec7u v\u00e0 x\u00e1c \u0111\u1ecbnh v\u1ecb tr\u00ed c\u1ee7a b\u1ea1n.<\/p>\n

S\u1eed d\u1ee5ng c\u00f9ng v\u1edbi b\u1ea3n \u0111\u1ed3 gi\u1ea5y<\/strong>: D\u00f9 GPS r\u1ea5t ti\u1ec7n \u00edch, nh\u01b0ng b\u1ea3n \u0111\u1ed3 gi\u1ea5y v\u1eabn l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 h\u1eefu \u00edch, \u0111\u1eb7c bi\u1ec7t trong tr\u01b0\u1eddng h\u1ee3p thi\u1ebft b\u1ecb h\u1ebft pin ho\u1eb7c m\u1ea5t t\u00edn hi\u1ec7u.<\/p>\n

\"dinh-vi-gps-luu-y\"<\/picture><\/p>\n

Tr\u00e1nh \u0111\u1ec3 thi\u1ebft b\u1ecb ti\u1ebfp x\u00fac tr\u1ef1c ti\u1ebfp v\u1edbi nhi\u1ec7t \u0111\u1ed9 cao<\/strong>: V\u00ed d\u1ee5, kh\u00f4ng \u0111\u1ec3 \u0111\u1ecbnh v\u1ecb GPS<\/strong> d\u01b0\u1edbi \u00e1nh n\u1eafng tr\u1ef1c ti\u1ebfp trong th\u1eddi gian d\u00e0i \u0111\u1ec3 tr\u00e1nh t\u00ecnh tr\u1ea1ng gi\u1ea3m hi\u1ec7u xu\u1ea5t v\u00e0 pin.<\/p>\n

S\u1eed d\u1ee5ng \u1edf ch\u1ebf \u0111\u1ed9 ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng<\/strong>: Khi b\u1ea1n \u0111ang \u1edf trong v\u00f9ng c\u00f3 t\u00edn hi\u1ec7u y\u1ebfu ho\u1eb7c kh\u00f4ng c\u00f3 t\u00edn hi\u1ec7u, h\u00e3y chuy\u1ec3n thi\u1ebft b\u1ecb sang ch\u1ebf \u0111\u1ed9 ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng, \u0111i\u1ec1u n\u00e0y s\u1ebd gi\u00fap k\u00e9o d\u00e0i th\u1eddi gian s\u1eed d\u1ee5ng.<\/p>\n

K\u1ebft h\u1ee3p v\u1edbi c\u00e1c c\u00f4ng ngh\u1ec7 kh\u00e1c<\/strong>: Trong m\u00f4i tr\u01b0\u1eddng kh\u00f3 kh\u0103n, nh\u01b0 r\u1eebng r\u1eadm ho\u1eb7c n\u00fai cao, vi\u1ec7c k\u1ebft h\u1ee3p c\u00f4ng ngh\u1ec7 GPS v\u1edbi c\u00e1c c\u00f4ng ngh\u1ec7 \u0111\u1ecbnh v\u1ecb kh\u00e1c s\u1ebd h\u1ed7 tr\u1ee3 c\u1ea3i thi\u1ec7n \u0111\u1ed9 ch\u00ednh x\u00e1c.<\/p>\n

T\u1ea1m k\u1ebft<\/h2>\n

T\u00f3m l\u1ea1i, ch\u00fang ta \u0111ang s\u1ed1ng trong m\u1ed9t th\u1ebf gi\u1edbi m\u00e0 vi\u1ec7c di chuy\u1ec3n v\u00e0 k\u1ebft n\u1ed1i \u0111ang tr\u1edf n\u00ean d\u1ec5 d\u00e0ng h\u01a1n bao gi\u1edd h\u1ebft, v\u00e0 \u0111\u1ecbnh v\u1ecb GPS<\/strong> ch\u00ednh l\u00e0 m\u1ed9t trong nh\u1eefng c\u00f4ng c\u1ee5 quan tr\u1ecdng gi\u00fap ch\u00fang ta \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111i\u1ec1u \u0111\u00f3.<\/p>\n

M\u1eb7c d\u00f9 c\u00f4ng ngh\u1ec7 GPS mang l\u1ea1i nhi\u1ec1u l\u1ee3i \u00edch, ng\u01b0\u1eddi s\u1eed d\u1ee5ng c\u1ea7n ph\u1ea3i l\u01b0u \u00fd r\u1eb1ng n\u00f3 kh\u00f4ng ph\u1ea3i l\u00fac n\u00e0o c\u0169ng 100% ch\u00ednh x\u00e1c. Do \u0111\u00f3, b\u1ea1n c\u1ea7n ph\u1ea3i nh\u1eadn th\u1ee9c r\u00f5 \u0111i\u1ec1u n\u00e0y khi \u0111i\u1ec1u h\u01b0\u1edbng v\u00e0 kh\u00f4ng ho\u00e0n to\u00e0n ph\u1ee5 thu\u1ed9c v\u00e0o thi\u1ebft b\u1ecb \u0111\u1ec3 tr\u00e1nh nh\u1eefng t\u00ecnh hu\u1ed1ng ph\u00e1t sinh ngo\u00e0i \u00fd mu\u1ed1n. Hi v\u1ecdng qua th\u00f4ng tin m\u00e0 Ho\u00e0ng H\u00e0 Mobile \u0111\u1ec1 c\u1eadp trong b\u00e0i vi\u1ebft n\u00e0y, b\u1ea1n s\u1ebd hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 m\u1ed9t trong nh\u1eefng c\u00f4ng ngh\u1ec7 kh\u00f4ng th\u1ec3 thi\u1ebfu trong th\u1eddi \u0111i\u1ec3m hi\u1ec7n t\u1ea1i n\u00e0y.<\/p>\n

Xem th\u00eam:<\/p>\n