{"id":17531,"date":"2025-10-19T17:02:33","date_gmt":"2025-10-19T10:02:33","guid":{"rendered":"https:\/\/lctech.vn\/?p=17531"},"modified":"2025-10-19T17:02:33","modified_gmt":"2025-10-19T10:02:33","slug":"lich-su-dong-ho-do-luu-luong-nuoc-tu-ai-cap-co-dai-den-iot","status":"publish","type":"post","link":"https:\/\/lctech.vn\/ko\/lich-su-dong-ho-do-luu-luong-nuoc-tu-ai-cap-co-dai-den-iot\/","title":{"rendered":"L\u1ecbch S\u1eed \u0110\u1ed3ng H\u1ed3 \u0110o L\u01b0u L\u01b0\u1ee3ng N\u01b0\u1edbc: T\u1eeb Ai C\u1eadp C\u1ed5 \u0110\u1ea1i \u0110\u1ebfn IoT"},"content":{"rendered":"<p><b>\u0110\u1ed3ng h\u1ed3 \u0111o l\u01b0u l\u01b0\u1ee3ng n\u01b0\u1edbc (flow meter)<\/b>, m\u1ed9t thi\u1ebft b\u1ecb t\u01b0\u1edfng ch\u1eebng \u0111\u01a1n gi\u1ea3n nh\u01b0ng l\u1ea1i l\u00e0 c\u1ed1t l\u00f5i c\u1ee7a ng\u00e0nh qu\u1ea3n l\u00fd t\u00e0i nguy\u00ean n\u01b0\u1edbc, \u0111\u00e3 tr\u1ea3i qua m\u1ed9t h\u00e0nh tr\u00ecnh ph\u00e1t tri\u1ec3n k\u00e9o d\u00e0i h\u00e0ng ngh\u00ecn n\u0103m. L\u1ecbch s\u1eed \u0111\u1ed3ng h\u1ed3 \u0111o l\u01b0u l\u01b0\u1ee3ng n\u01b0\u1edbc l\u00e0 m\u1ed9t bi\u00ean ni\u00ean s\u1eed v\u1ec1 tr\u00ed tu\u1ec7 con ng\u01b0\u1eddi, \u0111i t\u1eeb c\u00e1c ph\u01b0\u01a1ng ph\u00e1p \u0111o l\u01b0\u1eddng s\u01a1 khai c\u1ee7a ng\u01b0\u1eddi Ai C\u1eadp c\u1ed5 \u0111\u1ea1i \u0111\u1ebfn nh\u1eefng thi\u1ebft b\u1ecb si\u00eau \u00e2m, \u0111i\u1ec7n t\u1eeb v\u00e0 k\u1ebft n\u1ed1i IoT tinh vi ng\u00e0y nay.<\/p>\n<p>H\u00e0nh tr\u00ecnh n\u00e0y kh\u00f4ng ch\u1ec9 ph\u1ea3n \u00e1nh s\u1ef1 ti\u1ebfn b\u1ed9 c\u1ee7a khoa h\u1ecdc k\u1ef9 thu\u1eadt m\u00e0 c\u00f2n cho th\u1ea5y t\u1ea7m quan tr\u1ecdng ng\u00e0y c\u00e0ng t\u0103ng c\u1ee7a vi\u1ec7c \u0111o l\u01b0\u1eddng v\u00e0 ki\u1ec3m so\u00e1t ch\u00ednh x\u00e1c ngu\u1ed3n t\u00e0i nguy\u00ean qu\u00fd gi\u00e1 n\u00e0y.<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_76 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\">M\u1ee5c l\u1ee5c b\u00e0i vi\u1ebft<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"\ubaa9\ucc28 \ud1a0\uae00\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/lctech.vn\/ko\/lich-su-dong-ho-do-luu-luong-nuoc-tu-ai-cap-co-dai-den-iot\/#Thoi_Ky_Co_Dai_%E2%80%93_Giai_Doan_Tien_Do_Luu_Luong\" >Th\u1eddi K\u1ef3 C\u1ed5 \u0110\u1ea1i \u2013 Giai \u0110o\u1ea1n Ti\u1ec1n \u0110o L\u01b0u L\u01b0\u1ee3ng<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/lctech.vn\/ko\/lich-su-dong-ho-do-luu-luong-nuoc-tu-ai-cap-co-dai-den-iot\/#The_Ky_18_%E2%80%93_Khai_Sinh_Nguyen_Ly_Do_Hien_Dai\" >Th\u1ebf K\u1ef7 18 \u2013 Khai Sinh Nguy\u00ean L\u00fd \u0110o Hi\u1ec7n \u0110\u1ea1i<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/lctech.vn\/ko\/lich-su-dong-ho-do-luu-luong-nuoc-tu-ai-cap-co-dai-den-iot\/#The_Ky_19_%E2%80%93_Su_Xuat_Hien_Cua_Cac_Dong_Ho_Do_Co_Khi\" >Th\u1ebf K\u1ef7 19 \u2013 S\u1ef1 Xu\u1ea5t Hi\u1ec7n C\u1ee7a C\u00e1c \u0110\u1ed3ng H\u1ed3 \u0110o C\u01a1 Kh\u00ed<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/lctech.vn\/ko\/lich-su-dong-ho-do-luu-luong-nuoc-tu-ai-cap-co-dai-den-iot\/#The_Ky_20_%E2%80%93_Buoc_Ngoat_Khoa_Hoc_Ky_Thuat\" >Th\u1ebf K\u1ef7 20 \u2013 B\u01b0\u1edbc Ngo\u1eb7t Khoa H\u1ecdc K\u1ef9 Thu\u1eadt<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/lctech.vn\/ko\/lich-su-dong-ho-do-luu-luong-nuoc-tu-ai-cap-co-dai-den-iot\/#Dong_ho_dien_tu\" >\u0110\u1ed3ng h\u1ed3 \u0111i\u1ec7n t\u1eeb<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/lctech.vn\/ko\/lich-su-dong-ho-do-luu-luong-nuoc-tu-ai-cap-co-dai-den-iot\/#Dong_ho_sieu_am\" >\u0110\u1ed3ng h\u1ed3 si\u00eau \u00e2m<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/lctech.vn\/ko\/lich-su-dong-ho-do-luu-luong-nuoc-tu-ai-cap-co-dai-den-iot\/#Dong_ho_Coriolis\" >\u0110\u1ed3ng h\u1ed3 Coriolis<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/lctech.vn\/ko\/lich-su-dong-ho-do-luu-luong-nuoc-tu-ai-cap-co-dai-den-iot\/#The_Ky_21_%E2%80%93_Tu_Dong_Hoa_So_Hoa_Du_Lieu\" >Th\u1ebf K\u1ef7 21 \u2013 T\u1ef1 \u0110\u1ed9ng H\u00f3a &amp; S\u1ed1 H\u00f3a D\u1eef Li\u1ec7u<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/lctech.vn\/ko\/lich-su-dong-ho-do-luu-luong-nuoc-tu-ai-cap-co-dai-den-iot\/#Tong_Hop_Cac_Giai_Doan_Phat_Trien_Chinh\" >T\u1ed5ng H\u1ee3p C\u00e1c Giai \u0110o\u1ea1n Ph\u00e1t Tri\u1ec3n Ch\u00ednh<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/lctech.vn\/ko\/lich-su-dong-ho-do-luu-luong-nuoc-tu-ai-cap-co-dai-den-iot\/#Nhung_Cau_Hoi_Thuong_Gap_People_Also_Ask\" >Nh\u1eefng C\u00e2u H\u1ecfi Th\u01b0\u1eddng G\u1eb7p (People Also Ask)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/lctech.vn\/ko\/lich-su-dong-ho-do-luu-luong-nuoc-tu-ai-cap-co-dai-den-iot\/#Ket_Luan\" >K\u1ebft Lu\u1eadn<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Thoi_Ky_Co_Dai_%E2%80%93_Giai_Doan_Tien_Do_Luu_Luong\"><\/span>Th\u1eddi K\u1ef3 C\u1ed5 \u0110\u1ea1i \u2013 Giai \u0110o\u1ea1n Ti\u1ec1n \u0110o L\u01b0u L\u01b0\u1ee3ng<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Nhu c\u1ea7u \u0111o l\u01b0\u1eddng v\u00e0 ki\u1ec3m so\u00e1t d\u00f2ng ch\u1ea3y c\u1ee7a n\u01b0\u1edbc \u0111\u00e3 xu\u1ea5t hi\u1ec7n t\u1eeb khi c\u00e1c n\u1ec1n v\u0103n minh \u0111\u1ea7u ti\u00ean h\u00ecnh th\u00e0nh, g\u1eafn li\u1ec1n v\u1edbi n\u00f4ng nghi\u1ec7p v\u00e0 s\u1ef1 ph\u00e1t tri\u1ec3n \u0111\u00f4 th\u1ecb.<\/p>\n<p>T\u1eeb kho\u1ea3ng <b>n\u0103m 1000 tr\u01b0\u1edbc C\u00f4ng nguy\u00ean<\/b>, ng\u01b0\u1eddi <b>Ai C\u1eadp c\u1ed5 \u0111\u1ea1i<\/b> \u0111\u00e3 nh\u1eadn th\u1ee9c s\u00e2u s\u1eafc t\u1ea7m quan tr\u1ecdng c\u1ee7a s\u00f4ng Nile. H\u1ecd kh\u00f4ng ch\u1ec9 d\u1ef1a v\u00e0o con s\u00f4ng n\u00e0y \u0111\u1ec3 canh t\u00e1c m\u00e0 c\u00f2n ph\u1ea3i \u0111\u1ed1i ph\u00f3 v\u1edbi c\u00e1c tr\u1eadn l\u1ee5t h\u00e0ng n\u0103m. \u0110\u1ec3 d\u1ef1 \u0111o\u00e1n v\u00e0 ki\u1ec3m so\u00e1t th\u1ee7y l\u1ee3i, h\u1ecd \u0111\u00e3 x\u00e2y d\u1ef1ng c\u00e1c h\u1ec7 th\u1ed1ng \u0111\u1eadp d\u00e2ng v\u00e0 s\u1eed d\u1ee5ng &#8220;Nilometer&#8221; (m\u00e1y \u0111o m\u1ef1c n\u01b0\u1edbc s\u00f4ng Nile). B\u1eb1ng c\u00e1ch quan s\u00e1t s\u1ef1 thay \u0111\u1ed5i c\u1ee7a m\u1ef1c n\u01b0\u1edbc v\u00e0 t\u1ed1c \u0111\u1ed9 d\u00f2ng ch\u1ea3y qua c\u00e1c c\u00f4ng tr\u00ecnh n\u00e0y, h\u1ecd c\u00f3 th\u1ec3 \u01b0\u1edbc t\u00ednh l\u01b0u l\u01b0\u1ee3ng n\u01b0\u1edbc, t\u1eeb \u0111\u00f3 l\u00ean k\u1ebf ho\u1ea1ch gieo tr\u1ed3ng v\u00e0 thu ho\u1ea1ch, th\u1eadm ch\u00ed l\u00e0 \u0111\u1ecbnh m\u1ee9c thu\u1ebf. (Ngu\u1ed3n: Chuy\u00ean trang L\u1ecbch s\u1eed Th\u1ee7y l\u1ee3i)<\/p>\n<p>C\u00f9ng th\u1eddi k\u1ef3, t\u1ea1i <b>La M\u00e3 c\u1ed5 \u0111\u1ea1i<\/b>, khi c\u00e1c h\u1ec7 th\u1ed1ng d\u1eabn n\u01b0\u1edbc (aqueduct) ph\u1ee9c t\u1ea1p \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng \u0111\u1ec3 \u0111\u01b0a n\u01b0\u1edbc s\u1ea1ch v\u1ec1 th\u00e0nh ph\u1ed1, nhu c\u1ea7u ph\u00e2n ph\u1ed1i n\u01b0\u1edbc c\u00f4ng b\u1eb1ng tr\u1edf n\u00ean c\u1ea5p thi\u1ebft. C\u00e1c k\u1ef9 s\u01b0 La M\u00e3 \u0111\u00e3 ph\u00e1t minh ra m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p ki\u1ec3m so\u00e1t l\u01b0u l\u01b0\u1ee3ng s\u01a1 khai b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng <b>c\u00e1c t\u1ea5m l\u1ed7 \u0111o (orifice plates)<\/b>. H\u1ecd \u0111\u1eb7t nh\u1eefng t\u1ea5m kim lo\u1ea1i ho\u1eb7c \u0111\u00e1 c\u00f3 \u0111\u1ee5c l\u1ed7 v\u1edbi k\u00edch th\u01b0\u1edbc ti\u00eau chu\u1ea9n v\u00e0o c\u00e1c \u0111\u01b0\u1eddng \u1ed1ng. D\u1ef1a tr\u00ean nguy\u00ean l\u00fd \u00e1p su\u1ea5t n\u01b0\u1edbc kh\u00f4ng \u0111\u1ed5i, k\u00edch th\u01b0\u1edbc c\u1ee7a l\u1ed7 s\u1ebd quy\u1ebft \u0111\u1ecbnh l\u01b0\u1ee3ng n\u01b0\u1edbc ch\u1ea3y qua, cho ph\u00e9p h\u1ecd ph\u00e2n ph\u1ed1i m\u1ed9t l\u01b0\u1ee3ng n\u01b0\u1edbc nh\u1ea5t \u0111\u1ecbnh cho c\u00e1c h\u1ed9 gia \u0111\u00ecnh, nh\u00e0 t\u1eafm c\u00f4ng c\u1ed9ng v\u00e0 \u0111\u00e0i phun n\u01b0\u1edbc. \u0110\u00e2y ch\u00ednh l\u00e0 ti\u1ec1n th\u00e2n c\u1ee7a nguy\u00ean l\u00fd \u0111o l\u01b0u l\u01b0\u1ee3ng n\u01b0\u1edbc b\u1eb1ng ch\u00eanh l\u1ec7ch \u00e1p su\u1ea5t, m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p v\u1eabn c\u00f2n \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i ng\u00e0y nay.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"The_Ky_18_%E2%80%93_Khai_Sinh_Nguyen_Ly_Do_Hien_Dai\"><\/span>Th\u1ebf K\u1ef7 18 \u2013 Khai Sinh Nguy\u00ean L\u00fd \u0110o Hi\u1ec7n \u0110\u1ea1i<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Th\u1ebf k\u1ef7 18 ch\u1ee9ng ki\u1ebfn m\u1ed9t cu\u1ed9c c\u00e1ch m\u1ea1ng trong khoa h\u1ecdc th\u1ee7y l\u1ef1c, \u0111\u1eb7t n\u1ec1n m\u00f3ng l\u00fd thuy\u1ebft v\u1eefng ch\u1eafc cho c\u00e1c c\u00f4ng ngh\u1ec7 \u0111o l\u01b0\u1eddng hi\u1ec7n \u0111\u1ea1i.<\/p>\n<p>N\u0103m <b>1732<\/b>, k\u1ef9 s\u01b0 ng\u01b0\u1eddi Ph\u00e1p <b>Henri de Pitot<\/b> \u0111\u00e3 c\u00f4ng b\u1ed1 m\u1ed9t ph\u00e1t minh quan tr\u1ecdng khi th\u1ef1c hi\u1ec7n c\u00e1c th\u00ed nghi\u1ec7m \u0111o v\u1eadn t\u1ed1c d\u00f2ng ch\u1ea3y c\u1ee7a s\u00f4ng Seine. \u00d4ng \u0111\u00e3 t\u1ea1o ra &#8220;\u1ed1ng Pitot&#8221;, m\u1ed9t \u1ed1ng th\u1ee7y tinh h\u00ecnh ch\u1eef L \u0111\u01a1n gi\u1ea3n. Khi \u0111\u1eb7t \u1ed1ng h\u01b0\u1edbng v\u1ec1 ph\u00eda ng\u01b0\u1ee3c d\u00f2ng ch\u1ea3y, n\u01b0\u1edbc s\u1ebd d\u00e2ng l\u00ean trong \u1ed1ng m\u1ed9t \u0111\u1ed9 cao nh\u1ea5t \u0111\u1ecbnh. Pitot ph\u00e1t hi\u1ec7n ra r\u1eb1ng \u0111\u1ed9 cao n\u00e0y t\u1ef7 l\u1ec7 thu\u1eadn v\u1edbi b\u00ecnh ph\u01b0\u01a1ng v\u1eadn t\u1ed1c c\u1ee7a d\u00f2ng ch\u1ea3y. Th\u00ed nghi\u1ec7m n\u00e0y \u0111\u00e3 khai sinh ra ph\u01b0\u01a1ng ph\u00e1p \u0111o v\u1eadn t\u1ed1c d\u00f2ng ch\u1ea3y b\u1eb1ng ch\u00eanh \u00e1p, m\u1ed9t n\u1ec1n t\u1ea3ng cho \u0111o l\u01b0\u1eddng th\u1ee7y l\u1ef1c.<\/p>\n<p>Tuy nhi\u00ean, b\u01b0\u1edbc \u0111\u1ed9t ph\u00e1 mang t\u00ednh \u0111\u1ecbnh h\u00ecnh \u0111\u1ebfn v\u00e0o n\u0103m <b>1738<\/b>, khi nh\u00e0 v\u1eadt l\u00fd v\u00e0 to\u00e1n h\u1ecdc v\u0129 \u0111\u1ea1i ng\u01b0\u1eddi Th\u1ee5y S\u0129, <b>Daniel Bernoulli<\/b>, c\u00f4ng b\u1ed1 c\u00f4ng tr\u00ecnh &#8220;Hydrodynamica&#8221;. Trong \u0111\u00f3, \u00f4ng \u0111\u00e3 gi\u1edbi thi\u1ec7u <b>ph\u01b0\u01a1ng tr\u00ecnh Bernoulli<\/b> \u2013 m\u1ed9t \u0111\u1ecbnh lu\u1eadt c\u01a1 b\u1ea3n c\u1ee7a c\u01a1 h\u1ecdc ch\u1ea5t l\u1ecfng. Ph\u01b0\u01a1ng tr\u00ecnh n\u00e0y m\u00f4 t\u1ea3 m\u1ed1i quan h\u1ec7 ngh\u1ecbch \u0111\u1ea3o gi\u1eefa v\u1eadn t\u1ed1c v\u00e0 \u00e1p su\u1ea5t c\u1ee7a ch\u1ea5t l\u1ecfng: n\u01a1i n\u00e0o v\u1eadn t\u1ed1c d\u00f2ng ch\u1ea3y t\u0103ng l\u00ean, \u00e1p su\u1ea5t s\u1ebd gi\u1ea3m xu\u1ed1ng. Nguy\u00ean l\u00fd n\u00e0y tr\u1edf th\u00e0nh kim ch\u1ec9 nam, l\u00e0 c\u01a1 s\u1edf l\u00fd thuy\u1ebft cho h\u1ea7u h\u1ebft c\u00e1c ph\u01b0\u01a1ng ph\u00e1p \u0111o l\u01b0u l\u01b0\u1ee3ng d\u1ef1a tr\u00ean ch\u00eanh l\u1ec7ch \u00e1p su\u1ea5t sau n\u00e0y, bao g\u1ed3m c\u1ea3 \u1ed1ng Venturi.<\/p>\n<p>D\u1ef1a tr\u00ean n\u1ec1n t\u1ea3ng c\u1ee7a Bernoulli, nh\u00e0 khoa h\u1ecdc ng\u01b0\u1eddi \u00dd <b>Giovanni Battista Venturi<\/b> \u0111\u00e3 ph\u00e1t minh ra thi\u1ebft b\u1ecb mang t\u00ean m\u00ecnh v\u00e0o n\u0103m <b>1791<\/b>. <b>\u1ed0ng Venturi<\/b> l\u00e0 m\u1ed9t \u0111o\u1ea1n \u1ed1ng \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1eb7c bi\u1ec7t v\u1edbi m\u1ed9t ph\u1ea7n b\u1ecb th\u1eaft l\u1ea1i (g\u1ecdi l\u00e0 &#8220;c\u1ed5 h\u1ecdng&#8221;). Khi ch\u1ea5t l\u1ecfng ch\u1ea3y qua ph\u1ea7n th\u1eaft, v\u1eadn t\u1ed1c c\u1ee7a n\u00f3 t\u0103ng l\u00ean v\u00e0 \u00e1p su\u1ea5t gi\u1ea3m xu\u1ed1ng, \u0111\u00fang theo nguy\u00ean l\u00fd Bernoulli. B\u1eb1ng c\u00e1ch \u0111o s\u1ef1 ch\u00eanh l\u1ec7ch \u00e1p su\u1ea5t gi\u1eefa ph\u1ea7n \u1ed1ng r\u1ed9ng v\u00e0 ph\u1ea7n c\u1ed5 h\u1ecdng, ng\u01b0\u1eddi ta c\u00f3 th\u1ec3 t\u00ednh to\u00e1n ch\u00ednh x\u00e1c l\u01b0u l\u01b0\u1ee3ng d\u00f2ng ch\u1ea3y. Ph\u00e1t minh c\u1ee7a Venturi kh\u00f4ng ch\u1ec9 l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 \u0111o l\u01b0\u1eddng hi\u1ec7u qu\u1ea3 cho c\u1ea3 k\u00eanh h\u1edf v\u00e0 \u0111\u01b0\u1eddng \u1ed1ng k\u00edn m\u00e0 c\u00f2n l\u00e0 nguy\u00ean m\u1eabu tr\u1ef1c ti\u1ebfp cho r\u1ea5t nhi\u1ec1u lo\u1ea1i l\u01b0u l\u01b0\u1ee3ng k\u1ebf hi\u1ec7n \u0111\u1ea1i.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"The_Ky_19_%E2%80%93_Su_Xuat_Hien_Cua_Cac_Dong_Ho_Do_Co_Khi\"><\/span>Th\u1ebf K\u1ef7 19 \u2013 S\u1ef1 Xu\u1ea5t Hi\u1ec7n C\u1ee7a C\u00e1c \u0110\u1ed3ng H\u1ed3 \u0110o C\u01a1 Kh\u00ed<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>N\u1ebfu th\u1ebf k\u1ef7 18 l\u00e0 k\u1ef7 nguy\u00ean c\u1ee7a l\u00fd thuy\u1ebft, th\u00ec th\u1ebf k\u1ef7 19 l\u00e0 giai \u0111o\u1ea1n b\u00f9ng n\u1ed5 c\u1ee7a c\u00e1c \u1ee9ng d\u1ee5ng c\u01a1 kh\u00ed, bi\u1ebfn c\u00e1c nguy\u00ean l\u00fd khoa h\u1ecdc th\u00e0nh nh\u1eefng chi\u1ebfc \u0111\u1ed3ng h\u1ed3 \u0111o n\u01b0\u1edbc th\u1ef1c t\u1ebf \u0111\u1ea7u ti\u00ean.<\/p>\n<p>N\u0103m <b>1790<\/b>, nh\u00e0 ph\u00e1t minh ng\u01b0\u1eddi \u0110\u1ee9c <b>Reinhard Woltman<\/b> \u0111\u00e3 ch\u1ebf t\u1ea1o ra m\u1ed9t thi\u1ebft b\u1ecb s\u1eed d\u1ee5ng <b>qu\u1ea1t nhi\u1ec1u c\u00e1nh (Woltman turbine)<\/b> \u0111\u1ec3 \u0111o l\u01b0\u1ee3ng n\u01b0\u1edbc v\u00e0 kh\u00f4ng kh\u00ed ch\u1ea3y qua. Khi d\u00f2ng n\u01b0\u1edbc di chuy\u1ec3n, n\u00f3 l\u00e0m quay c\u00e1c c\u00e1nh qu\u1ea1t; t\u1ed1c \u0111\u1ed9 quay c\u1ee7a qu\u1ea1t t\u1ef7 l\u1ec7 thu\u1eadn v\u1edbi v\u1eadn t\u1ed1c d\u00f2ng ch\u1ea3y. B\u1eb1ng c\u00e1ch \u0111\u1ebfm s\u1ed1 v\u00f2ng quay, ng\u01b0\u1eddi ta c\u00f3 th\u1ec3 suy ra t\u1ed5ng l\u01b0u l\u01b0\u1ee3ng \u0111\u00e3 \u0111i qua. \u0110\u00e2y ch\u00ednh l\u00e0 ti\u1ec1n th\u00e2n c\u1ee7a \u0111\u1ed3ng h\u1ed3 tuabin Woltman (hay c\u00f2n g\u1ecdi l\u00e0 \u0111\u1ed3ng h\u1ed3 n\u01b0\u1edbc d\u1ea1ng c\u01a1) v\u00f4 c\u00f9ng ph\u1ed5 bi\u1ebfn ng\u00e0y nay, \u0111\u1eb7c bi\u1ec7t trong c\u00e1c h\u1ec7 th\u1ed1ng c\u1ea5p n\u01b0\u1edbc s\u1ea1ch \u0111\u00f4 th\u1ecb. (Ngu\u1ed3n: T\u1ea1p ch\u00ed N\u01b0\u1edbc &amp; \u0110\u1eddi s\u1ed1ng)<\/p>\n<p>Ph\u00e1t minh c\u1ee7a Woltman ban \u0111\u1ea7u ch\u1ee7 y\u1ebfu d\u00f9ng cho k\u00eanh h\u1edf. \u0110\u1ebfn n\u0103m <b>1850<\/b>, <b>Werner von Siemens<\/b> (ng\u01b0\u1eddi s\u00e1ng l\u1eadp t\u1eadp \u0111o\u00e0n Siemens, \u0110\u1ee9c) \u0111\u00e3 c\u1ea3i ti\u1ebfn thi\u1ebft k\u1ebf n\u00e0y, ph\u00e1t tri\u1ec3n m\u1ed9t phi\u00ean b\u1ea3n \u0111\u1ed3ng h\u1ed3 \u0111o d\u00e0nh cho <b>\u0111\u01b0\u1eddng \u1ed1ng d\u1eabn k\u00edn<\/b>. C\u1ea3i ti\u1ebfn n\u00e0y mang l\u1ea1i \u0111\u1ed9 ch\u00ednh x\u00e1c cao h\u01a1n \u0111\u00e1ng k\u1ec3 v\u00e0 m\u1edf \u0111\u01b0\u1eddng cho vi\u1ec7c l\u1eafp \u0111\u1eb7t \u0111\u1ed3ng h\u1ed3 \u0111o n\u01b0\u1edbc trong c\u00e1c h\u1ec7 th\u1ed1ng \u0111\u01b0\u1eddng \u1ed1ng c\u00f4ng nghi\u1ec7p v\u00e0 d\u00e2n d\u1ee5ng.<\/p>\n<p>Song song v\u1edbi s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a \u0111\u1ed3ng h\u1ed3 tuabin, m\u1ed9t nh\u00e1nh c\u00f4ng ngh\u1ec7 kh\u00e1c t\u1eadp trung v\u00e0o vi\u1ec7c \u0111o l\u01b0\u1eddng th\u1ec3 t\u00edch m\u1ed9t c\u00e1ch tr\u1ef1c ti\u1ebfp. N\u0103m <b>1857<\/b>, <b>Henry Worthington<\/b> (Hoa K\u1ef3) \u0111\u00e3 s\u1ea3n xu\u1ea5t \u0111\u1ed3ng h\u1ed3 n\u01b0\u1edbc <b>lo\u1ea1i piston<\/b> d\u1ef1a tr\u00ean c\u01a1 ch\u1ebf ho\u1ea1t \u0111\u1ed9ng c\u1ee7a \u0111\u1ed9ng c\u01a1 h\u01a1i n\u01b0\u1edbc. Thi\u1ebft b\u1ecb n\u00e0y ho\u1ea1t \u0111\u1ed9ng b\u1eb1ng c\u00e1ch l\u1ea5p \u0111\u1ea7y v\u00e0 x\u1ea3 c\u00e1c bu\u1ed3ng ch\u1ee9a c\u00f3 th\u1ec3 t\u00edch x\u00e1c \u0111\u1ecbnh, m\u1ed7i chu k\u1ef3 l\u1ea5p \u0111\u1ea7y\/x\u1ea3 t\u01b0\u01a1ng \u1ee9ng v\u1edbi m\u1ed9t l\u01b0\u1ee3ng n\u01b0\u1edbc c\u1ed1 \u0111\u1ecbnh.<\/p>\n<p>Trong giai \u0111o\u1ea1n <b>1884\u20131888<\/b>, <b>L.H. Nash<\/b> (M\u1ef9) \u0111\u00e3 nh\u1eadn b\u1eb1ng s\u00e1ng ch\u1ebf cho hai thi\u1ebft k\u1ebf quan tr\u1ecdng: <b>\u0111\u1ed3ng h\u1ed3 piston dao \u0111\u1ed9ng<\/b> v\u00e0 <b>\u0111\u1ed3ng h\u1ed3 \u0111\u0129a c\u00f3 \u0111ai \u1ed1c (nutating disc)<\/b>. \u0110\u1eb7c bi\u1ec7t, \u0111\u1ed3ng h\u1ed3 \u0111\u0129a \u0111ai \u1ed1c v\u1edbi c\u01a1 ch\u1ebf \u0111\u0129a l\u1eafc tr\u00f2n b\u00ean trong m\u1ed9t bu\u1ed3ng \u0111o \u0111\u00e3 tr\u1edf th\u00e0nh thi\u1ebft k\u1ebf ti\u00eau chu\u1ea9n cho h\u1ea7u h\u1ebft c\u00e1c \u0111\u1ed3ng h\u1ed3 n\u01b0\u1edbc sinh ho\u1ea1t t\u1ea1i M\u1ef9 v\u00e0 nhi\u1ec1u n\u01a1i tr\u00ean th\u1ebf gi\u1edbi trong su\u1ed1t th\u1ebf k\u1ef7 20, nh\u1edd v\u00e0o \u0111\u1ed9 ch\u00ednh x\u00e1c cao \u1edf l\u01b0u l\u01b0\u1ee3ng th\u1ea5p v\u00e0 c\u1ea5u t\u1ea1o b\u1ec1n b\u1ec9.<\/p>\n<p>Nh\u1eefng c\u1ea3i ti\u1ebfn trong th\u1ebf k\u1ef7 19 \u0111\u00e3 \u0111\u1eb7t n\u1ec1n m\u00f3ng v\u1eefng ch\u1eafc cho c\u00e1c s\u1ea3n ph\u1ea9m \u0111\u1ed3ng h\u1ed3 c\u01a1 hi\u1ec7n \u0111\u1ea1i. C\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t uy t\u00edn nh\u01b0 VINAMETER v\u1eabn ti\u1ebfp t\u1ee5c ph\u00e1t tri\u1ec3n c\u00e1c d\u00f2ng \u0111\u1ed3ng h\u1ed3 tuabin v\u00e0 \u0111\u1ed3ng h\u1ed3 th\u1ec3 t\u00edch d\u1ef1a tr\u00ean nh\u1eefng nguy\u00ean l\u00fd v\u00e0ng n\u00e0y, t\u1ed1i \u01b0u h\u00f3a v\u1eadt li\u1ec7u v\u00e0 \u0111\u1ed9 ch\u00ednh x\u00e1c \u0111\u1ec3 \u0111\u00e1p \u1ee9ng nhu c\u1ea7u ng\u00e0y c\u00e0ng cao c\u1ee7a th\u1ecb tr\u01b0\u1eddng.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"The_Ky_20_%E2%80%93_Buoc_Ngoat_Khoa_Hoc_Ky_Thuat\"><\/span>Th\u1ebf K\u1ef7 20 \u2013 B\u01b0\u1edbc Ngo\u1eb7t Khoa H\u1ecdc K\u1ef9 Thu\u1eadt<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Th\u1ebf k\u1ef7 20 l\u00e0 m\u1ed9t k\u1ef7 nguy\u00ean c\u1ee7a nh\u1eefng b\u01b0\u1edbc nh\u1ea3y v\u1ecdt, khi c\u00e1c nguy\u00ean l\u00fd v\u1eadt l\u00fd m\u1edbi \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng, \u0111\u01b0a c\u00f4ng ngh\u1ec7 \u0111o l\u01b0u l\u01b0\u1ee3ng v\u01b0\u1ee3t ra kh\u1ecfi gi\u1edbi h\u1ea1n c\u01a1 kh\u00ed thu\u1ea7n t\u00fay.<\/p>\n<p>\u0110\u1ea7u th\u1ebf k\u1ef7, c\u00e1c thi\u1ebft k\u1ebf c\u01a1 h\u1ecdc ti\u1ebfp t\u1ee5c \u0111\u01b0\u1ee3c ho\u00e0n thi\u1ec7n. N\u0103m <b>1886<\/b>, <b>C. Herschel<\/b> (M\u1ef9) \u0111\u00e3 c\u1ea3i ti\u1ebfn \u1ed1ng Venturi, t\u0103ng \u0111\u1ed9 ch\u00ednh x\u00e1c v\u00e0 gi\u1ea3m t\u1ed5n th\u1ea5t \u00e1p su\u1ea5t. D\u1ef1a tr\u00ean c\u00f4ng tr\u00ecnh n\u00e0y, <b>R.L. Parshall<\/b> v\u00e0o n\u0103m <b>1922<\/b> \u0111\u00e3 ph\u00e1t tri\u1ec3n <b>m\u00e1ng Parshall<\/b>, m\u1ed9t c\u1ea5u tr\u00fac k\u00eanh h\u1edf ti\u00eau chu\u1ea9n cho ph\u00e9p \u0111o l\u01b0u l\u01b0\u1ee3ng ch\u1ec9 b\u1eb1ng c\u00e1ch \u0111o m\u1ef1c n\u01b0\u1edbc t\u1ea1i m\u1ed9t \u0111i\u1ec3m duy nh\u1ea5t. M\u00e1ng Parshall nhanh ch\u00f3ng tr\u1edf th\u00e0nh ti\u00eau chu\u1ea9n v\u00e0ng trong ng\u00e0nh th\u1ee7y l\u1ee3i v\u00e0 x\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i tr\u00ean to\u00e0n th\u1ebf gi\u1edbi. (Ngu\u1ed3n: Hi\u1ec7p h\u1ed9i Th\u1ee7y l\u1ee3i Hoa K\u1ef3)<\/p>\n<p>Giai \u0111o\u1ea1n <b>1900\u20131950<\/b> ch\u1ee9ng ki\u1ebfn s\u1ef1 c\u1ea3i ti\u1ebfn ch\u1eadm nh\u01b0ng \u1ed5n \u0111\u1ecbnh c\u1ee7a c\u00e1c thi\u1ebft b\u1ecb c\u01a1 h\u1ecdc. M\u1ed9t d\u1ea5u m\u1ed1c \u0111\u00e1ng ch\u00fa \u00fd l\u00e0 s\u1ef1 ra \u0111\u1eddi c\u1ee7a <b>\u0111\u1ed3ng h\u1ed3 Woltman tr\u1ee5c \u0111\u1ee9ng<\/b> v\u00e0o kho\u1ea3ng n\u0103m 1960. Thi\u1ebft k\u1ebf n\u00e0y gi\u00fap b\u1ed9 \u0111\u1ebfm s\u1ed1 kh\u00f4ng b\u1ecb ng\u1eadp trong n\u01b0\u1edbc, cho ph\u00e9p \u0111\u1ecdc ch\u1ec9 s\u1ed1 ch\u00ednh x\u00e1c h\u01a1n v\u00e0 quan tr\u1ecdng l\u00e0 gi\u00fap \u0111\u1ed3ng h\u1ed3 ch\u1ed1ng l\u1ea1i s\u1ef1 l\u1eafng c\u1eb7n c\u1ee7a c\u00e1t v\u00e0 r\u00e1c b\u1ea9n, t\u0103ng tu\u1ed5i th\u1ecd \u0111\u00e1ng k\u1ec3. (Ngu\u1ed3n: Wikipedia &#8211; L\u1ecbch s\u1eed \u0111o l\u01b0u l\u01b0\u1ee3ng)<\/p>\n<p>Tuy nhi\u00ean, cu\u1ed9c c\u00e1ch m\u1ea1ng th\u1ef1c s\u1ef1 x\u1ea3y ra v\u00e0o gi\u1eefa th\u1ebf k\u1ef7 20 v\u1edbi s\u1ef1 tr\u1ed7i d\u1eady c\u1ee7a c\u00f4ng ngh\u1ec7 \u0111i\u1ec7n t\u1eed.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Dong_ho_dien_tu\"><\/span>\u0110\u1ed3ng h\u1ed3 \u0111i\u1ec7n t\u1eeb<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Nguy\u00ean l\u00fd c\u1ea3m \u1ee9ng \u0111i\u1ec7n t\u1eeb \u0111\u01b0\u1ee3c <b>Michael Faraday<\/b> ph\u00e1t hi\u1ec7n t\u1eeb n\u0103m 1832: khi m\u1ed9t v\u1eadt d\u1eabn \u0111i\u1ec7n (nh\u01b0 n\u01b0\u1edbc) di chuy\u1ec3n qua m\u1ed9t t\u1eeb tr\u01b0\u1eddng, n\u00f3 s\u1ebd t\u1ea1o ra m\u1ed9t \u0111i\u1ec7n \u00e1p t\u1ef7 l\u1ec7 thu\u1eadn v\u1edbi v\u1eadn t\u1ed1c c\u1ee7a v\u1eadt d\u1eabn. M\u1eb7c d\u00f9 nguy\u00ean l\u00fd n\u00e0y \u0111\u00e3 \u0111\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn t\u1eeb l\u00e2u, nh\u01b0ng ph\u1ea3i \u0111\u1ebfn <b>n\u0103m 1950<\/b>, n\u00f3 m\u1edbi \u0111\u01b0\u1ee3c th\u01b0\u01a1ng m\u1ea1i h\u00f3a th\u00e0nh c\u00f4ng \u0111\u1ec3 t\u1ea1o ra <b>\u0111\u1ed3ng h\u1ed3 \u0111o l\u01b0u l\u01b0\u1ee3ng \u0111i\u1ec7n t\u1eeb<\/b>.<\/p>\n<p>Lo\u1ea1i \u0111\u1ed3ng h\u1ed3 n\u00e0y kh\u00f4ng c\u00f3 b\u1ed9 ph\u1eadn c\u01a1 kh\u00ed chuy\u1ec3n \u0111\u1ed9ng n\u00e0o trong d\u00f2ng ch\u1ea3y, do \u0111\u00f3 n\u00f3 kh\u00f4ng g\u00e2y t\u1ed5n th\u1ea5t \u00e1p su\u1ea5t, kh\u00f4ng b\u1ecb t\u1eafc ngh\u1ebdn v\u00e0 c\u00f3 th\u1ec3 \u0111o \u0111\u01b0\u1ee3c c\u00e1c lo\u1ea1i ch\u1ea5t l\u1ecfng b\u1ea9n, \u0103n m\u00f2n ho\u1eb7c c\u00f3 c\u1eb7n. \u0110\u00e2y l\u00e0 m\u1ed9t b\u01b0\u1edbc ti\u1ebfn v\u01b0\u1ee3t b\u1eadc, \u0111\u1eb7c bi\u1ec7t cho c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p h\u00f3a ch\u1ea5t v\u00e0 x\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Dong_ho_sieu_am\"><\/span>\u0110\u1ed3ng h\u1ed3 si\u00eau \u00e2m<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u00dd t\u01b0\u1edfng s\u1eed d\u1ee5ng s\u00f3ng \u00e2m thanh \u0111\u1ec3 \u0111o d\u00f2ng ch\u1ea3y \u0111\u01b0\u1ee3c <b>Rutten<\/b> \u0111\u1ec1 xu\u1ea5t v\u00e0o n\u0103m 1928. Nh\u01b0ng c\u0169ng ph\u1ea3i m\u1ea5t h\u00e0ng th\u1eadp k\u1ef7, \u0111\u1ebfn <b>n\u0103m 1970<\/b>, s\u1ea3n ph\u1ea9m th\u01b0\u01a1ng m\u1ea1i \u0111\u1ea7u ti\u00ean m\u1edbi xu\u1ea5t hi\u1ec7n. <b>\u0110\u1ed3ng h\u1ed3 si\u00eau \u00e2m<\/b> ho\u1ea1t \u0111\u1ed9ng d\u1ef1a tr\u00ean nguy\u00ean l\u00fd &#8220;th\u1eddi gian truy\u1ec1n&#8221; (transit-time). N\u00f3 ph\u00e1t c\u00e1c xung si\u00eau \u00e2m theo chi\u1ec1u xu\u00f4i v\u00e0 ng\u01b0\u1ee3c d\u00f2ng ch\u1ea3y. Xung \u0111i xu\u00f4i d\u00f2ng s\u1ebd m\u1ea5t \u00edt th\u1eddi gian h\u01a1n xung \u0111i ng\u01b0\u1ee3c d\u00f2ng; s\u1ef1 ch\u00eanh l\u1ec7ch v\u1ec1 th\u1eddi gian n\u00e0y t\u1ef7 l\u1ec7 thu\u1eadn tr\u1ef1c ti\u1ebfp v\u1edbi v\u1eadn t\u1ed1c d\u00f2ng ch\u1ea3y. Gi\u1ed1ng nh\u01b0 \u0111\u1ed3ng h\u1ed3 \u0111i\u1ec7n t\u1eeb, \u0111\u1ed3ng h\u1ed3 si\u00eau \u00e2m kh\u00f4ng c\u1ea3n tr\u1edf d\u00f2ng ch\u1ea3y, c\u00f3 \u0111\u1ed9 ch\u00ednh x\u00e1c cao v\u00e0 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t k\u1eb9p b\u00ean ngo\u00e0i \u0111\u01b0\u1eddng \u1ed1ng (clamp-on) m\u00e0 kh\u00f4ng c\u1ea7n c\u1eaft \u1ed1ng.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Dong_ho_Coriolis\"><\/span>\u0110\u1ed3ng h\u1ed3 Coriolis<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Ph\u00e1t tri\u1ec3n trong giai \u0111o\u1ea1n <b>1950\u20131980<\/b>, <b>\u0111\u1ed3ng h\u1ed3 Coriolis<\/b> l\u00e0 m\u1ed9t ph\u00e1t minh \u0111\u1ed9t ph\u00e1 kh\u00e1c. N\u00f3 ho\u1ea1t \u0111\u1ed9ng d\u1ef1a tr\u00ean hi\u1ec7u \u1ee9ng Coriolis (ph\u00e1t sinh do l\u1ef1c qu\u00e1n t\u00ednh trong m\u1ed9t h\u1ec7 quy chi\u1ebfu quay). \u0110\u1ed3ng h\u1ed3 l\u00e0m cho \u1ed1ng \u0111o rung \u1edf t\u1ea7n s\u1ed1 t\u1ef1 nhi\u00ean. Khi ch\u1ea5t l\u1ecfng ch\u1ea3y qua, n\u00f3 g\u00e2y ra m\u1ed9t l\u1ef1c xo\u1eafn tr\u00ean \u1ed1ng do hi\u1ec7u \u1ee9ng Coriolis. \u0110\u1ed9 xo\u1eafn n\u00e0y \u0111\u01b0\u1ee3c \u0111o b\u1eb1ng c\u1ea3m bi\u1ebfn v\u00e0 t\u1ef7 l\u1ec7 thu\u1eadn tr\u1ef1c ti\u1ebfp v\u1edbi <b>l\u01b0u l\u01b0\u1ee3ng kh\u1ed1i l\u01b0\u1ee3ng<\/b> (thay v\u00ec l\u01b0u l\u01b0\u1ee3ng th\u1ec3 t\u00edch nh\u01b0 c\u00e1c lo\u1ea1i kh\u00e1c). \u0110\u00e2y l\u00e0 lo\u1ea1i \u0111\u1ed3ng h\u1ed3 duy nh\u1ea5t c\u00f3 th\u1ec3 \u0111o tr\u1ef1c ti\u1ebfp kh\u1ed1i l\u01b0\u1ee3ng, khi\u1ebfn n\u00f3 tr\u1edf n\u00ean v\u00f4 gi\u00e1 trong c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p d\u1ea7u kh\u00ed v\u00e0 h\u00f3a ch\u1ea5t, n\u01a1i t\u1ef7 tr\u1ecdng ch\u1ea5t l\u1ecfng thay \u0111\u1ed5i li\u00ean t\u1ee5c.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"The_Ky_21_%E2%80%93_Tu_Dong_Hoa_So_Hoa_Du_Lieu\"><\/span>Th\u1ebf K\u1ef7 21 \u2013 T\u1ef1 \u0110\u1ed9ng H\u00f3a &amp; S\u1ed1 H\u00f3a D\u1eef Li\u1ec7u<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>B\u01b0\u1edbc sang th\u1ebf k\u1ef7 21, tr\u1ecdng t\u00e2m c\u1ee7a l\u1ecbch s\u1eed \u0111\u1ed3ng h\u1ed3 \u0111o l\u01b0u l\u01b0\u1ee3ng n\u01b0\u1edbc chuy\u1ec3n t\u1eeb ph\u00e1t minh nguy\u00ean l\u00fd \u0111o m\u1edbi sang t\u00edch h\u1ee3p c\u00f4ng ngh\u1ec7 th\u00f4ng tin v\u00e0 t\u1ef1 \u0111\u1ed9ng h\u00f3a. Nh\u1eefng chi\u1ebfc \u0111\u1ed3ng h\u1ed3 hi\u1ec7n \u0111\u1ea1i kh\u00f4ng ch\u1ec9 l\u00e0 thi\u1ebft b\u1ecb \u0111o, m\u00e0 c\u00f2n l\u00e0 c\u00e1c &#8220;n\u00fat&#8221; (node) th\u00f4ng minh trong m\u1ed9t m\u1ea1ng l\u01b0\u1edbi qu\u1ea3n l\u00fd d\u1eef li\u1ec7u.<\/p>\n<p>C\u00e1c <b>\u0111\u1ed3ng h\u1ed3 \u0111o l\u01b0u l\u01b0\u1ee3ng n\u01b0\u1edbc \u0111i\u1ec7n t\u1eed<\/b> (bao g\u1ed3m c\u1ea3 \u0111i\u1ec7n t\u1eeb v\u00e0 si\u00eau \u00e2m) ng\u00e0y nay \u0111\u01b0\u1ee3c trang b\u1ecb kh\u1ea3 n\u0103ng <b>k\u1ebft n\u1ed1i IoT (Internet of Things)<\/b>. Ch\u00fang c\u00f3 th\u1ec3 truy\u1ec1n d\u1eef li\u1ec7u \u0111o l\u01b0\u1eddng theo th\u1eddi gian th\u1ef1c v\u1ec1 trung t\u00e2m \u0111i\u1ec1u h\u00e0nh th\u00f4ng qua c\u00e1c giao th\u1ee9c kh\u00f4ng d\u00e2y nh\u01b0 <b>GSM (m\u1ea1ng di \u0111\u1ed9ng), LoRaWAN<\/b>, ho\u1eb7c c\u00e1c giao th\u1ee9c c\u00f3 d\u00e2y c\u00f4ng nghi\u1ec7p nh\u01b0 <b>Modbus\/RS485<\/b>.<\/p>\n<p>Kh\u1ea3 n\u0103ng k\u1ebft n\u1ed1i n\u00e0y m\u1edf ra v\u00f4 s\u1ed1 \u1ee9ng d\u1ee5ng:<\/p>\n<ol start=\"1\">\n<li><b>Qu\u1ea3n l\u00fd n\u01b0\u1edbc \u0111\u00f4 th\u1ecb v\u00e0 c\u00f4ng nghi\u1ec7p:<\/b> C\u00e1c c\u00f4ng ty c\u1ea5p n\u01b0\u1edbc c\u00f3 th\u1ec3 theo d\u00f5i l\u01b0\u1ee3ng n\u01b0\u1edbc ti\u00eau th\u1ee5, ph\u00e1t hi\u1ec7n r\u00f2 r\u1ec9 ngay l\u1eadp t\u1ee9c t\u1ea1i c\u00e1c v\u00f9ng DMA (District Metering Area) v\u00e0 t\u1ef1 \u0111\u1ed9ng ghi ch\u1ec9 s\u1ed1 t\u1eeb xa (AMR &#8211; Automatic Meter Reading), lo\u1ea1i b\u1ecf nhu c\u1ea7u ghi s\u1ed1 th\u1ee7 c\u00f4ng v\u00e0 n\u00e2ng cao t\u00ednh minh b\u1ea1ch.<\/li>\n<li><b>Gi\u00e1m s\u00e1t n\u01b0\u1edbc th\u1ea3i:<\/b> Trong c\u00e1c h\u1ec7 th\u1ed1ng x\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i, c\u00e1c c\u1ea3m bi\u1ebfn \u0111\u1eb7c bi\u1ec7t v\u1edbi v\u1eadt li\u1ec7u ch\u1ed1ng \u0103n m\u00f2n (nh\u01b0 l\u00f3t PTFE) cho ph\u00e9p \u0111o l\u01b0\u1eddng ch\u00ednh x\u00e1c l\u01b0u l\u01b0\u1ee3ng n\u01b0\u1edbc th\u1ea3i th\u00f4, n\u01b0\u1edbc b\u00f9n, h\u00f3a ch\u1ea5t&#8230; \u0111\u1ea3m b\u1ea3o quy tr\u00ecnh x\u1eed l\u00fd \u0111\u1ea1t chu\u1ea9n tr\u01b0\u1edbc khi x\u1ea3 ra m\u00f4i tr\u01b0\u1eddng.<\/li>\n<li><b>H\u1ec7 th\u1ed1ng SCADA v\u00e0 GIS:<\/b> D\u1eef li\u1ec7u l\u01b0u l\u01b0\u1ee3ng \u0111\u01b0\u1ee3c t\u00edch h\u1ee3p tr\u1ef1c ti\u1ebfp v\u00e0o c\u00e1c h\u1ec7 th\u1ed1ng <b>SCADA<\/b> (Ki\u1ec3m so\u00e1t gi\u00e1m s\u00e1t v\u00e0 Thu th\u1eadp d\u1eef li\u1ec7u) ho\u1eb7c <b>GIS<\/b> (H\u1ec7 th\u1ed1ng th\u00f4ng tin \u0111\u1ecba l\u00fd). \u0110i\u1ec1u n\u00e0y cho ph\u00e9p c\u00e1c nh\u00e0 v\u1eadn h\u00e0nh c\u00f3 m\u1ed9t c\u00e1i nh\u00ecn t\u1ed5ng th\u1ec3, tr\u1ef1c quan v\u1ec1 to\u00e0n b\u1ed9 m\u1ea1ng l\u01b0\u1edbi c\u1ea5p tho\u00e1t n\u01b0\u1edbc, t\u1eeb \u0111\u00f3 \u0111\u01b0a ra c\u00e1c quy\u1ebft \u0111\u1ecbnh \u0111i\u1ec1u h\u00e0nh t\u1ed1i \u01b0u, nh\u01b0 \u0111i\u1ec1u \u00e1p, \u0111i\u1ec1u ph\u1ed1i ngu\u1ed3n n\u01b0\u1edbc v\u00e0 qu\u1ea3n l\u00fd th\u1ee7y l\u1ee3i.<\/li>\n<\/ol>\n<p>C\u00e1c gi\u1ea3i ph\u00e1p <a href=\"https:\/\/lctech.vn\/ko\/dong-ho-do-nuoc-thong-minh-khong-day-tu-xa\/\">\u0111\u1ed3ng h\u1ed3 n\u01b0\u1edbc th\u00f4ng minh<\/a> t\u1eeb LC TECH hi\u1ec7n \u0111ang t\u00edch h\u1ee3p nh\u1eefng c\u00f4ng ngh\u1ec7 IoT ti\u00ean ti\u1ebfn n\u00e0y, gi\u00fap c\u00e1c nh\u00e0 m\u00e1y v\u00e0 \u0111\u00f4 th\u1ecb t\u1ea1i Vi\u1ec7t Nam (nh\u01b0 \u1edf Kh\u00e1nh H\u00f2a, H\u00e0 N\u1ed9i, TPHCM) b\u01b0\u1edbc v\u00e0o k\u1ef7 nguy\u00ean qu\u1ea3n l\u00fd t\u00e0i nguy\u00ean 4.0.<\/p>\n<hr \/>\n<h2><span class=\"ez-toc-section\" id=\"Tong_Hop_Cac_Giai_Doan_Phat_Trien_Chinh\"><\/span>T\u1ed5ng H\u1ee3p C\u00e1c Giai \u0110o\u1ea1n Ph\u00e1t Tri\u1ec3n Ch\u00ednh<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>H\u00e0nh tr\u00ecnh ph\u00e1t tri\u1ec3n c\u1ee7a \u0111\u1ed3ng h\u1ed3 \u0111o l\u01b0u l\u01b0\u1ee3ng n\u01b0\u1edbc c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c t\u00f3m t\u1eaft qua c\u00e1c c\u1ed9t m\u1ed1c quan tr\u1ecdng sau:<\/p>\n<table>\n<thead>\n<tr>\n<td><strong>Giai \u0111o\u1ea1n<\/strong><\/td>\n<td><strong>Ph\u00e1t minh ti\u00eau bi\u1ec3u<\/strong><\/td>\n<td><strong>Nh\u00e0 khoa h\u1ecdc \/ K\u1ef9 s\u01b0 n\u1ed5i b\u1eadt<\/strong><\/td>\n<td><strong>Lo\u1ea1i \u0111\u1ed3ng h\u1ed3<\/strong><\/td>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><b>Tr\u01b0\u1edbc CN \u2013 T_k\u1ef7 17<\/b><\/td>\n<td>Quan s\u00e1t d\u00f2ng ch\u1ea3y k\u00eanh, \u0111\u1eadp, t\u1ea5m l\u1ed7 \u0111o<\/td>\n<td>Ng\u01b0\u1eddi Ai C\u1eadp, La M\u00e3 c\u1ed5 \u0111\u1ea1i<\/td>\n<td>D\u1ea1ng c\u01a1 h\u1ecdc th\u1ee7y c\u00f4ng<\/td>\n<\/tr>\n<tr>\n<td><b>1730\u20131790<\/b><\/td>\n<td>Ph\u01b0\u01a1ng tr\u00ecnh Bernoulli, \u1ed1ng Venturi, \u1ed1ng Pitot<\/td>\n<td>Daniel Bernoulli, G.B. Venturi, Henri Pitot<\/td>\n<td>\u0110o ch\u00eanh l\u1ec7ch \u00e1p su\u1ea5t<\/td>\n<\/tr>\n<tr>\n<td><b>1790\u20131850<\/b><\/td>\n<td>Tuabin Woltman (c\u00e1nh qu\u1ea1t)<\/td>\n<td>Reinhard Woltman<\/td>\n<td>L\u01b0u l\u01b0\u1ee3ng tuabin<\/td>\n<\/tr>\n<tr>\n<td><b>1850\u20131900<\/b><\/td>\n<td>Piston, \u0111\u0129a \u0111ai \u1ed1c, tuabin \u1ed1ng k\u00edn<\/td>\n<td>Werner von Siemens, H. Worthington, L.H. Nash<\/td>\n<td>Th\u1ec3 t\u00edch v\u00e0 c\u01a1 kh\u00ed<\/td>\n<\/tr>\n<tr>\n<td><b>1950\u20131970<\/b><\/td>\n<td>Th\u01b0\u01a1ng m\u1ea1i h\u00f3a \u0111\u1ed3ng h\u1ed3 \u0111i\u1ec7n t\u1eeb v\u00e0 si\u00eau \u00e2m<\/td>\n<td>D\u1ef1a tr\u00ean nguy\u00ean l\u00fd c\u1ee7a Faraday, Rutten<\/td>\n<td>C\u00f4ng ngh\u1ec7 \u0111i\u1ec7n t\u1eed h\u00f3a<\/td>\n<\/tr>\n<tr>\n<td><b>2000\u2013nay<\/b><\/td>\n<td>C\u1ea3m bi\u1ebfn IoT, Smart meter, t\u00edch h\u1ee3p SCADA<\/td>\n<td>C\u00e1c k\u1ef9 s\u01b0 M\u1ef9, Nh\u1eadt, \u0110\u1ee9c<\/td>\n<td>K\u1ebft n\u1ed1i s\u1ed1 v\u00e0 d\u1eef li\u1ec7u th\u00f4ng minh<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><span class=\"ez-toc-section\" id=\"Nhung_Cau_Hoi_Thuong_Gap_People_Also_Ask\"><\/span>Nh\u1eefng C\u00e2u H\u1ecfi Th\u01b0\u1eddng G\u1eb7p (People Also Ask)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>1. \u0110\u1ed3ng h\u1ed3 \u0111o l\u01b0u l\u01b0\u1ee3ng n\u01b0\u1edbc \u0111\u1ea7u ti\u00ean \u0111\u01b0\u1ee3c ph\u00e1t minh khi n\u00e0o?<\/p>\n<p>Kh\u00e1i ni\u1ec7m \u0111o l\u01b0\u1eddng s\u01a1 khai nh\u1ea5t c\u00f3 t\u1eeb th\u1eddi Ai C\u1eadp c\u1ed5 \u0111\u1ea1i (kho\u1ea3ng 1000 TCN) v\u1edbi vi\u1ec7c \u0111o m\u1ef1c n\u01b0\u1edbc s\u00f4ng Nile. Tuy nhi\u00ean, thi\u1ebft b\u1ecb c\u01a1 kh\u00ed \u0111\u1ea7u ti\u00ean c\u00f3 th\u1ec3 coi l\u00e0 \u0111\u1ed3ng h\u1ed3 \u0111o l\u00e0 tuabin Woltman (1790) v\u00e0 \u1ed1ng Venturi (1791).<\/p>\n<p>2. Nguy\u00ean l\u00fd Bernoulli quan tr\u1ecdng nh\u01b0 th\u1ebf n\u00e0o v\u1edbi \u0111\u1ed3ng h\u1ed3 \u0111o l\u01b0u l\u01b0\u1ee3ng?<\/p>\n<p>Ph\u01b0\u01a1ng tr\u00ecnh Bernoulli (1738) l\u00e0 n\u1ec1n t\u1ea3ng l\u00fd thuy\u1ebft cho t\u1ea5t c\u1ea3 c\u00e1c lo\u1ea1i \u0111\u1ed3ng h\u1ed3 \u0111o ch\u00eanh \u00e1p. N\u00f3 gi\u1ea3i th\u00edch r\u1eb1ng khi v\u1eadn t\u1ed1c d\u00f2ng ch\u1ea3y t\u0103ng th\u00ec \u00e1p su\u1ea5t gi\u1ea3m, cho ph\u00e9p c\u00e1c thi\u1ebft b\u1ecb nh\u01b0 \u1ed1ng Venturi v\u00e0 t\u1ea5m l\u1ed7 \u0111o (orifice plate) t\u00ednh to\u00e1n \u0111\u01b0\u1ee3c l\u01b0u l\u01b0\u1ee3ng d\u1ef1a tr\u00ean s\u1ef1 thay \u0111\u1ed5i \u00e1p su\u1ea5t n\u00e0y.<\/p>\n<p>3. S\u1ef1 kh\u00e1c bi\u1ec7t ch\u00ednh gi\u1eefa \u0111\u1ed3ng h\u1ed3 c\u01a1 v\u00e0 \u0111\u1ed3ng h\u1ed3 \u0111i\u1ec7n t\u1eed l\u00e0 g\u00ec?<\/p>\n<p>\u0110\u1ed3ng h\u1ed3 c\u01a1 (nh\u01b0 Woltman, piston) s\u1eed d\u1ee5ng c\u00e1c b\u1ed9 ph\u1eadn chuy\u1ec3n \u0111\u1ed9ng (c\u00e1nh qu\u1ea1t, \u0111\u0129a) \u0111\u1ec3 \u0111o d\u00f2ng ch\u1ea3y v\u00e0 th\u01b0\u1eddng hi\u1ec3n th\u1ecb b\u1eb1ng b\u1ed9 \u0111\u1ebfm s\u1ed1 c\u01a1 h\u1ecdc. \u0110\u1ed3ng h\u1ed3 \u0111i\u1ec7n t\u1eed (nh\u01b0 \u0111i\u1ec7n t\u1eeb, si\u00eau \u00e2m) kh\u00f4ng c\u00f3 b\u1ed9 ph\u1eadn chuy\u1ec3n \u0111\u1ed9ng, s\u1eed d\u1ee5ng c\u00e1c nguy\u00ean l\u00fd v\u1eadt l\u00fd (c\u1ea3m \u1ee9ng \u0111i\u1ec7n t\u1eeb, s\u00f3ng \u00e2m) \u0111\u1ec3 \u0111o v\u1eadn t\u1ed1c, c\u00f3 \u0111\u1ed9 ch\u00ednh x\u00e1c cao h\u01a1n, kh\u00f4ng g\u00e2y t\u1ed5n th\u1ea5t \u00e1p v\u00e0 c\u00f3 th\u1ec3 k\u1ebft n\u1ed1i truy\u1ec1n d\u1eef li\u1ec7u t\u1eeb xa.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Ket_Luan\"><\/span>K\u1ebft Lu\u1eadn<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>L\u1ecbch s\u1eed \u0111\u1ed3ng h\u1ed3 \u0111o l\u01b0u l\u01b0\u1ee3ng n\u01b0\u1edbc l\u00e0 m\u1ed9t minh ch\u1ee9ng h\u00f9ng h\u1ed3n cho s\u1ef1 ph\u00e1t tri\u1ec3n kh\u00f4ng ng\u1eebng c\u1ee7a khoa h\u1ecdc k\u1ef9 thu\u1eadt, song h\u00e0nh c\u00f9ng nhu c\u1ea7u qu\u1ea3n l\u00fd t\u00e0i nguy\u00ean c\u1ee7a x\u00e3 h\u1ed9i. T\u1eeb nh\u1eefng ph\u01b0\u01a1ng ph\u00e1p \u0111o m\u1ef1c n\u01b0\u1edbc th\u00f4 s\u01a1 c\u1ee7a ng\u01b0\u1eddi <b>Ai C\u1eadp c\u1ed5 \u0111\u1ea1i<\/b> b\u00ean b\u1edd s\u00f4ng Nile, ch\u00fang ta \u0111\u00e3 ti\u1ebfn \u0111\u1ebfn c\u00e1c <b>\u0111\u1ed3ng h\u1ed3 \u0111o l\u01b0u l\u01b0\u1ee3ng \u0111i\u1ec7n t\u1eeb v\u00e0 si\u00eau \u00e2m<\/b> c\u00f3 kh\u1ea3 n\u0103ng k\u1ebft n\u1ed1i IoT, cung c\u1ea5p d\u1eef li\u1ec7u th\u1eddi gian th\u1ef1c v\u1edbi \u0111\u1ed9 ch\u00ednh x\u00e1c g\u1ea7n nh\u01b0 tuy\u1ec7t \u0111\u1ed1i.<\/p>\n<p>H\u00e0nh tr\u00ecnh n\u00e0y ph\u1ea3n \u00e1nh ti\u1ebfn tr\u00ecnh ph\u00e1t tri\u1ec3n song h\u00e0nh c\u1ee7a <b>khoa h\u1ecdc th\u1ee7y l\u1ef1c<\/b> (Bernoulli, Venturi), <b>k\u1ef9 thu\u1eadt c\u01a1 kh\u00ed<\/b> (Woltman, Siemens) v\u00e0 sau \u0111\u00f3 l\u00e0 <b>c\u00f4ng ngh\u1ec7 c\u1ea3m bi\u1ebfn v\u00e0 t\u1ef1 \u0111\u1ed9ng h\u00f3a c\u00f4ng nghi\u1ec7p<\/b>.<\/p>\n<p>Ng\u00e0y nay, m\u1ed9t chi\u1ebfc \u0111\u1ed3ng h\u1ed3 n\u01b0\u1edbc kh\u00f4ng \u0111\u01a1n thu\u1ea7n ch\u1ec9 \u0111\u1ec3 \u0111o d\u00f2ng ch\u1ea3y. N\u00f3 \u0111\u00e3 tr\u1edf th\u00e0nh m\u1ed9t <b>trung t\u00e2m qu\u1ea3n l\u00fd d\u1eef li\u1ec7u l\u01b0u l\u01b0\u1ee3ng<\/b>, m\u1ed9t thi\u1ebft b\u1ecb \u0111\u1ea7u cu\u1ed1i th\u00f4ng minh. Ch\u00fang l\u00e0 m\u1eaft x\u00edch kh\u00f4ng th\u1ec3 thi\u1ebfu trong vi\u1ec7c x\u00e2y d\u1ef1ng c\u00e1c <b>h\u1ec7 th\u1ed1ng c\u1ea5p tho\u00e1t n\u01b0\u1edbc th\u00f4ng minh (smart water grid)<\/b>, gi\u00fap ph\u00e1t hi\u1ec7n r\u00f2 r\u1ec9, t\u1ed1i \u01b0u h\u00f3a v\u1eadn h\u00e0nh v\u00e0 th\u00fac \u0111\u1ea9y <b>qu\u1ea3n tr\u1ecb t\u00e0i nguy\u00ean b\u1ec1n v\u1eefng<\/b>.<\/p>\n<p>Trong b\u1ed1i c\u1ea3nh bi\u1ebfn \u0111\u1ed5i kh\u00ed h\u1eadu v\u00e0 \u00e1p l\u1ef1c v\u1ec1 ngu\u1ed3n n\u01b0\u1edbc s\u1ea1ch ng\u00e0y c\u00e0ng gia t\u0103ng, vai tr\u00f2 c\u1ee7a nh\u1eefng thi\u1ebft b\u1ecb \u0111o l\u01b0\u1eddng ch\u00ednh x\u00e1c v\u00e0 th\u00f4ng minh n\u00e0y s\u1ebd c\u00f2n tr\u1edf n\u00ean quan tr\u1ecdng h\u01a1n bao gi\u1edd h\u1ebft.<\/p>\n<p>\u0110\u1ec3 \u0111\u01b0\u1ee3c t\u01b0 v\u1ea5n gi\u1ea3i ph\u00e1p \u0111o l\u01b0\u1eddng ti\u00ean ti\u1ebfn nh\u1ea5t ph\u00f9 h\u1ee3p v\u1edbi nhu c\u1ea7u qu\u1ea3n l\u00fd n\u01b0\u1edbc c\u1ee7a doanh nghi\u1ec7p hay \u0111\u00f4 th\u1ecb c\u1ee7a b\u1ea1n, h\u00e3y <a href=\"https:\/\/lctech.vn\/ko\/lien-he-lc-tech\/\">li\u00ean h\u1ec7 v\u1edbi chuy\u00ean gia c\u1ee7a LC TECH<\/a> ngay h\u00f4m nay!<\/p>","protected":false},"excerpt":{"rendered":"<p>\u0110\u1ed3ng h\u1ed3 \u0111o l\u01b0u l\u01b0\u1ee3ng n\u01b0\u1edbc (flow meter), m\u1ed9t thi\u1ebft b\u1ecb t\u01b0\u1edfng ch\u1eebng \u0111\u01a1n gi\u1ea3n nh\u01b0ng l\u1ea1i l\u00e0 c\u1ed1t l\u00f5i<\/p>","protected":false},"author":1,"featured_media":17441,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[35],"tags":[],"class_list":["post-17531","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tin-tuc"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v24.5 (Yoast SEO v25.8) - 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V\u1edbi s\u1ee9 m\u1ec7nh \u201cThay \u0111\u1ed5i h\u00e0nh vi ti\u00eau d\u00f9ng \u0111i\u1ec7n n\u01b0\u1edbc c\u1ee7a ng\u01b0\u1eddi d\u00e2n theo h\u01b0\u1edbng ti\u1ebft ki\u1ec7m v\u00e0 hi\u1ec7u qu\u1ea3\u201d, anh c\u00f9ng LC Tech ph\u00e1t tri\u1ec3n c\u00e1c gi\u1ea3i ph\u00e1p th\u00f4ng minh gi\u00fap ng\u01b0\u1eddi d\u00f9ng ki\u1ec3m so\u00e1t n\u0103ng l\u01b0\u1ee3ng m\u1ed9t c\u00e1ch ch\u1ee7 \u0111\u1ed9ng. 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