{"id":85444,"date":"2025-06-03T11:43:25","date_gmt":"2025-06-03T04:43:25","guid":{"rendered":"https:\/\/tcvn.gov.vn\/?p=85444"},"modified":"2025-06-03T11:43:29","modified_gmt":"2025-06-03T04:43:29","slug":"hieu-chuan-may-chu-thoi-gian-mang-trong-ho-tro-nang-cao-tinh-phap-ly-cho-cac-to-chuc-cung-cap-dich-vu-tin-cay","status":"publish","type":"post","link":"https:\/\/tcvn.gov.vn\/hieu-chuan-may-chu-thoi-gian-mang-trong-ho-tro-nang-cao-tinh-phap-ly-cho-cac-to-chuc-cung-cap-dich-vu-tin-cay\/03\/06\/2025\/","title":{"rendered":"Hi\u1ec7u chu\u1ea9n m\u00e1y ch\u1ee7 th\u1eddi gian m\u1ea1ng trong h\u1ed7 tr\u1ee3 n\u00e2ng cao t\u00ednh ph\u00e1p l\u00fd cho c\u00e1c t\u1ed5 ch\u1ee9c cung c\u1ea5p d\u1ecbch v\u1ee5 tin c\u1eady"},"content":{"rendered":"
    \n
  1. B\u1ed1i c\u1ea3nh v\u00e0 \u0111\u1eb7t v\u1ea5n \u0111\u1ec1<\/strong><\/li>\n<\/ol>\n

    Trong ti\u1ebfn tr\u00ecnh chuy\u1ec3n \u0111\u1ed5i s\u1ed1 qu\u1ed1c gia, d\u1ea5u th\u1eddi gian \u0111i\u1ec7n t\u1eed (timestamp) l\u00e0 y\u1ebfu t\u1ed1 c\u1ed1t l\u00f5i \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o t\u00ednh to\u00e0n v\u1eb9n, minh b\u1ea1ch v\u00e0 gi\u00e1 tr\u1ecb ph\u00e1p l\u00fd c\u1ee7a c\u00e1c giao d\u1ecbch s\u1ed1. Tuy nhi\u00ean, c\u00e1c h\u1ec7 th\u1ed1ng m\u00e1y ch\u1ee7 c\u1ea5p d\u1ea5u th\u1eddi gian (TSA) t\u1ea1i Vi\u1ec7t Nam hi\u1ec7n ch\u01b0a c\u00f3 quy tr\u00ecnh ki\u1ec3m ch\u1ee9ng \u0111\u1ed9 ch\u00ednh x\u00e1c th\u1eddi gian, ph\u1ea7n l\u1edbn ch\u1ec9 d\u1ef1a tr\u00ean tuy\u00ean b\u1ed1 c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t ho\u1eb7c th\u00f4ng tin v\u1ec1 \u0111\u1ed3ng b\u1ed9 NTP. \u0110i\u1ec1u n\u00e0y g\u00e2y ra r\u1ee7i ro ph\u00e1p l\u00fd trong c\u00e1c giao d\u1ecbch \u0111i\u1ec7n t\u1eed n\u1ebfu th\u1eddi gian b\u1ecb sai l\u1ec7ch.<\/p>\n

    C\u00e1c ti\u00eau chu\u1ea9n qu\u1ed1c t\u1ebf nh\u01b0 ISO\/IEC 18014-4:2024 v\u00e0 khuy\u1ebfn ngh\u1ecb ITU-R TF.1876 \u0111\u1ec1u y\u00eau c\u1ea7u c\u00e1c TSA ph\u1ea3i ch\u1ee9ng minh \u0111\u01b0\u1ee3c \u0111\u1ed3ng h\u1ed3 h\u1ec7 th\u1ed1ng \u0111\u01b0\u1ee3c hi\u1ec7u chu\u1ea9n v\u00e0 li\u00ean k\u1ebft chu\u1ea9n \u0111\u1ebfn UTC(k). T\u1ea1i Vi\u1ec7t Nam, Vi\u1ec7n \u0110o l\u01b0\u1eddng Vi\u1ec7t Nam (VMI) l\u00e0 \u0111\u01a1n v\u1ecb duy nh\u1ea5t c\u00f3 tr\u00e1ch nhi\u1ec7m cung c\u1ea5p d\u1ecbch v\u1ee5 hi\u1ec7u chu\u1ea9n th\u1eddi gian \u0111\u01b0\u1ee3c truy xu\u1ea5t \u0111\u1ebfn UTC.<\/p>\n

      \n
    1. Gi\u1ea3i ph\u00e1p \u2013 H\u1ec7 th\u1ed1ng TSysCAL<\/strong><\/li>\n<\/ol>\n

      Tr\u01b0\u1edbc y\u00eau c\u1ea7u th\u1ef1c ti\u1ec5n n\u00eau tr\u00ean, Vi\u1ec7n \u0110o l\u01b0\u1eddng Vi\u1ec7t Nam (Vi\u1ec7n) \u0111\u00e3 x\u00e2y d\u1ef1ng v\u00e0 th\u1eed nghi\u1ec7m h\u1ec7 th\u1ed1ng hi\u1ec7u chu\u1ea9n m\u00e1y ch\u1ee7 th\u1eddi gian m\u1ea1ng \u2013 TSysCAL v\u1edbi \u0111\u1ed9 kh\u00f4ng \u0111\u1ea3m b\u1ea3o \u0111o c\u1ee7a h\u1ec7 th\u1ed1ng chu\u1ea9n nh\u1ecf h\u01a1n 1 \u03bcs. H\u1ec7 th\u1ed1ng s\u1eed d\u1ee5ng:<\/p>\n

        \n
      • K\u1ef9 thu\u1eadt quan tr\u1eafc c\u00f9ng v\u1ec7 tinh GNSS (Common-View) \u0111\u1ec3 so s\u00e1nh thang th\u1eddi gian c\u1ee7a h\u1ec7 th\u1ed1ng v\u1edbi UTC(VMI);<\/li>\n
      • Giao th\u1ee9c NTP\/SNTP \u0111\u1ec3 \u0111o \u0111\u1ed9 l\u1ec7ch th\u1eddi gian gi\u1eefa m\u00e1y ch\u1ee7 TSA (DUT) v\u00e0 TSysCAL;<\/li>\n
      • B\u1ed9 ph\u1ea7n m\u1ec1m g\u1ed3m nhi\u1ec1u c\u00f4ng c\u1ee5 ph\u00e1t tri\u1ec3n tr\u00ean n\u1ec1n t\u1ea3ng LabVIEW, Python, Excel VBA, h\u1ed7 tr\u1ee3 \u0111o, ph\u00e2n t\u00edch v\u00e0 t\u1ea1o gi\u1ea5y ch\u1ee9ng nh\u1eadn hi\u1ec7u chu\u1ea9n \u0111i\u1ec7n t\u1eed.<\/li>\n<\/ul>\n

        TSysCAL l\u00e0 m\u1ed9t h\u1ec7 th\u1ed1ng chu\u1ea9n di \u0111\u1ed9ng c\u00f3 th\u1ec3 tri\u1ec3n khai hi\u1ec7u chu\u1ea9n t\u1ea1i ch\u1ed7 ho\u1eb7c gi\u00e1m s\u00e1t t\u1eeb xa, ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c trung t\u00e2m d\u1eef li\u1ec7u v\u00e0 t\u1ed5 ch\u1ee9c cung c\u1ea5p d\u1ecbch v\u1ee5 tin c\u1eady.<\/p>\n

        <\/p>\n

        \"\"\n
        \"\"<\/figure>\n<\/figure>\n

        <\/p>\n

        H\u00ecnh 1 S\u01a1 \u0111\u1ed3 hi\u1ec7u chu\u1ea9n m\u00e1y ch\u1ee7 th\u1eddi gian m\u1ea1ng<\/p>\n

          \n
        1. K\u1ebft qu\u1ea3, \u1ee9ng d\u1ee5ng v\u00e0 \u0111\u1ecbnh h\u01b0\u1edbng m\u1edf r\u1ed9ng<\/strong><\/li>\n<\/ol>\n

          TSysCAL \u0111\u00e3 \u0111\u01b0\u1ee3c th\u1eed nghi\u1ec7m \u00e1p d\u1ee5ng th\u1ef1c t\u1ebf tr\u00ean m\u1ed9t s\u1ed1 m\u00e1y ch\u1ee7 th\u1eddi gian s\u1eed d\u1ee5ng t\u1ea1i c\u00e1c t\u1ed5 ch\u1ee9c d\u1ecbch v\u1ee5 tin c\u1eady \u00a0v\u1edbi \u0111i\u1ec1u ki\u1ec7n v\u1eadn h\u00e0nh kh\u00e1c nhau v\u00e0 \u0111\u00e3 ch\u1ee9ng minh \u0111\u01b0\u1ee3c kh\u1ea3 n\u0103ng thi\u1ebft l\u1eadp li\u00ean k\u1ebft chu\u1ea9n th\u1eddi gian t\u1edbi UTC(VMI) m\u1ed9t c\u00e1ch tin c\u1eady th\u00f4ng qua ph\u01b0\u01a1ng ph\u00e1p quan tr\u1eafc c\u00f9ng v\u1ec7 tinh, c\u0169ng nh\u01b0 kh\u1ea3 n\u0103ng \u0111o v\u00e0 \u0111\u00e1nh gi\u00e1 \u0111\u1ed9 l\u1ec7ch th\u1eddi gian gi\u1eefa c\u00e1c m\u00e1y ch\u1ee7 th\u1eddi gian (DUT) v\u1edbi \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ea7n thi\u1ebft. H\u1ec7 th\u1ed1ng kh\u00f4ng ch\u1ec9 ph\u1ee5c v\u1ee5 hi\u1ec7u chu\u1ea9n cho TSA m\u00e0 c\u00f2n c\u00f3 th\u1ec3 m\u1edf r\u1ed9ng \u1ee9ng d\u1ee5ng nh\u01b0:<\/p>\n

            \n
          • C\u1ea5u h\u00ecnh th\u00e0nh ngu\u1ed3n chu\u1ea9n th\u1eddi gian NTP t\u1ea7ng 1 (Stratum-1 NTP Server);<\/li>\n
          • Cung c\u1ea5p d\u1ecbch v\u1ee5 gi\u00e1m s\u00e1t th\u1eddi gian 24\/7;<\/li>\n
          • H\u1ed7 tr\u1ee3 hi\u1ec7u chu\u1ea9n t\u1ea7n s\u1ed1 v\u00e0 th\u1eddi gian cho thi\u1ebft b\u1ecb c\u00f3 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh <10\u207b\u00b9\u00b9.<\/li>\n<\/ul>\n
              \n
            1. Ki\u1ebfn ngh\u1ecb<\/strong><\/li>\n<\/ol>\n

              Nh\u00f3m nghi\u00ean c\u1ee9u ki\u1ebfn ngh\u1ecb c\u00e1c c\u01a1 quan qu\u1ea3n l\u00fd chuy\u00ean ng\u00e0nh s\u1edbm x\u00e2y d\u1ef1ng quy chu\u1ea9n k\u1ef9 thu\u1eadt qu\u1ed1c gia cho m\u00e1y ch\u1ee7 th\u1eddi gian, l\u00e0m c\u01a1 s\u1edf ph\u00e1p l\u00fd cho ho\u1ea1t \u0111\u1ed9ng ki\u1ec3m \u0111\u1ecbnh, hi\u1ec7u chu\u1ea9n \u0111\u1ecbnh k\u1ef3. Vi\u1ec7c n\u00e0y s\u1ebd gi\u00fap n\u00e2ng cao t\u00ednh minh b\u1ea1ch, \u0111\u1ed9 tin c\u1eady c\u1ee7a d\u1ecbch v\u1ee5 d\u1ea5u th\u1eddi gian \u0111i\u1ec7n t\u1eed v\u00e0 th\u00fac \u0111\u1ea9y ph\u00e1t tri\u1ec3n h\u1ea1 t\u1ea7ng c\u00f4ng ngh\u1ec7 th\u00f4ng tin quan tr\u1ecdng trong c\u00f4ng cu\u1ed9c chuy\u1ec3n \u0111\u1ed5i s\u1ed1, ph\u00e1t tri\u1ec3n n\u1ec1n kinh t\u1ebf s\u1ed1 v\u00e0 x\u00e3 h\u1ed9i s\u1ed1.<\/p>\n

              Ph\u00f2ng Th\u1eddi gian T\u1ea7n s\u1ed1 v\u00e0 \u00c2m thanh Rung \u0111\u1ed9ng \u2013 <\/strong>Vi\u1ec7n \u0110o l\u01b0\u1eddng Vi\u1ec7t Nam<\/strong><\/p>\n

              \u00a0<\/p>\n\n\n

              <\/p>\n","protected":false},"excerpt":{"rendered":"

              B\u1ed1i c\u1ea3nh v\u00e0 \u0111\u1eb7t v\u1ea5n \u0111\u1ec1 Trong ti\u1ebfn tr\u00ecnh chuy\u1ec3n \u0111\u1ed5i s\u1ed1 qu\u1ed1c gia, d\u1ea5u th\u1eddi gian \u0111i\u1ec7n t\u1eed (timestamp) l\u00e0 y\u1ebfu t\u1ed1 c\u1ed1t l\u00f5i \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o t\u00ednh to\u00e0n v\u1eb9n, minh b\u1ea1ch v\u00e0 gi\u00e1 tr\u1ecb ph\u00e1p l\u00fd c\u1ee7a c\u00e1c giao d\u1ecbch s\u1ed1. Tuy nhi\u00ean, c\u00e1c h\u1ec7 th\u1ed1ng m\u00e1y ch\u1ee7 c\u1ea5p d\u1ea5u th\u1eddi gian (TSA) […]<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[11,19,22,2901],"tags":[],"acf":{"linh-vuc":"\u0110o l\u01b0\u1eddng"},"_links":{"self":[{"href":"https:\/\/tcvn.gov.vn\/wp-json\/wp\/v2\/posts\/85444"}],"collection":[{"href":"https:\/\/tcvn.gov.vn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tcvn.gov.vn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tcvn.gov.vn\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/tcvn.gov.vn\/wp-json\/wp\/v2\/comments?post=85444"}],"version-history":[{"count":1,"href":"https:\/\/tcvn.gov.vn\/wp-json\/wp\/v2\/posts\/85444\/revisions"}],"predecessor-version":[{"id":85450,"href":"https:\/\/tcvn.gov.vn\/wp-json\/wp\/v2\/posts\/85444\/revisions\/85450"}],"wp:attachment":[{"href":"https:\/\/tcvn.gov.vn\/wp-json\/wp\/v2\/media?parent=85444"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tcvn.gov.vn\/wp-json\/wp\/v2\/categories?post=85444"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tcvn.gov.vn\/wp-json\/wp\/v2\/tags?post=85444"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}