{"id":5140,"date":"2024-11-05T13:56:42","date_gmt":"2024-11-05T05:56:42","guid":{"rendered":"https:\/\/bo-qi.com\/?p=5140"},"modified":"2026-01-04T18:27:22","modified_gmt":"2026-01-04T10:27:22","slug":"what-does-dmx-mean-in-lighting-a-new-hand-guide","status":"publish","type":"post","link":"https:\/\/bo-qi.com\/vi\/what-does-dmx-mean-in-lighting-a-new-hand-guide\/","title":{"rendered":"DMX c\u00f3 ngh\u0129a l\u00e0 g\u00ec trong chi\u1ebfu s\u00e1ng: H\u01b0\u1edbng d\u1eabn m\u1edbi cho ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u"},"content":{"rendered":"
\"h\u00ecnh<\/figure>\n\n\n\n

Gi\u1edbi thi\u1ec7u<\/h2>\n\n\n\n

\u0110\u00e8n chi\u1ebfu s\u00e1ng Digital Multiplex (DMX) \u0111\u00e3 tr\u1edf n\u00ean thi\u1ebft y\u1ebfu trong thi\u1ebft k\u1ebf chi\u1ebfu s\u00e1ng chuy\u00ean nghi\u1ec7p, c\u00e1ch m\u1ea1ng h\u00f3a c\u00e1ch ch\u00fang ta \u0111i\u1ec1u khi\u1ec3n \u00e1nh s\u00e1ng trong c\u00e1c b\u1ed1i c\u1ea3nh nh\u01b0 nh\u00e0 h\u00e1t, bu\u1ed5i h\u00f2a nh\u1ea1c, s\u1ef1 ki\u1ec7n v\u00e0 th\u1eadm ch\u00ed c\u1ea3 chi\u1ebfu s\u00e1ng ki\u1ebfn tr\u00fac. Ban \u0111\u1ea7u \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n v\u00e0o nh\u1eefng n\u0103m 1980, DMX mang l\u1ea1i \u0111\u1ed9 ch\u00ednh x\u00e1c, t\u00ednh linh ho\u1ea1t v\u00e0 kh\u1ea3 n\u0103ng ph\u1ed1i h\u1ee3p nhi\u1ec1u thi\u1ebft b\u1ecb chi\u1ebfu s\u00e1ng t\u1eeb m\u1ed9t ngu\u1ed3n duy nh\u1ea5t. \u0110\u1ed1i v\u1edbi ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u, nh\u00e0 t\u1ed5 ch\u1ee9c s\u1ef1 ki\u1ec7n ho\u1eb7c nh\u00e2n vi\u00ean k\u1ef9 thu\u1eadt b\u01b0\u1edbc v\u00e0o th\u1ebf gi\u1edbi chi\u1ebfu s\u00e1ng, hi\u1ec3u v\u1ec1 DMX m\u1edf ra c\u00e1nh c\u1eeda \u0111\u1ebfn nh\u1eefng kh\u1ea3 n\u0103ng chi\u1ebfu s\u00e1ng \u0111\u1ed9ng v\u00e0 s\u00e1ng t\u1ea1o.<\/p>\n\n\n\n

\"h\u00ecnh<\/figure>\n\n\n\n

DMX trong thu\u1eadt ng\u1eef chi\u1ebfu s\u00e1ng l\u00e0 g\u00ec?<\/h2>\n\n\n\n

DMX, vi\u1ebft t\u1eaft c\u1ee7a Digital Multiplex Signal<\/strong>, l\u00e0 m\u1ed9t giao th\u1ee9c \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n b\u1edfi USITT (Vi\u1ec7n C\u00f4ng ngh\u1ec7 S\u00e2n kh\u1ea5u Hoa K\u1ef3)<\/strong>. N\u00f3 \u0111\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn ch\u00ednh th\u1ee9c v\u1edbi t\u00ean g\u1ecdi DMX512<\/a><\/strong>, bi\u1ec3u th\u1ecb kh\u1ea3 n\u0103ng \u0111i\u1ec1u khi\u1ec3n l\u00ean \u0111\u1ebfn 512 k\u00eanh ri\u00eang l\u1ebb<\/strong>. M\u1ed7i k\u00eanh t\u01b0\u01a1ng \u1ee9ng v\u1edbi m\u1ed9t thu\u1ed9c t\u00ednh chi\u1ebfu s\u00e1ng c\u1ee5 th\u1ec3, nh\u01b0 c\u01b0\u1eddng \u0111\u1ed9, m\u00e0u s\u1eafc ho\u1eb7c chuy\u1ec3n \u0111\u1ed9ng.<\/p>\n\n\n\n

C\u1ea5u tr\u00fac c\u1ee7a DMX512 cho ph\u00e9p ng\u01b0\u1eddi d\u00f9ng \u0111i\u1ec1u khi\u1ec3n c\u00e1c thu\u1ed9c t\u00ednh n\u00e0y tr\u00ean nhi\u1ec1u thi\u1ebft b\u1ecb, m\u1ed7i thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c g\u00e1n m\u1ed9t \u0111\u1ecba ch\u1ec9 duy nh\u1ea5t trong gi\u1edbi h\u1ea1n 512 k\u00eanh. Ti\u00eau chu\u1ea9n truy\u1ec1n th\u00f4ng n\u00e0y mang l\u1ea1i \u0111\u1ed9 ch\u00ednh x\u00e1c \u0111\u00e1ng kinh ng\u1ea1c cho ng\u01b0\u1eddi d\u00f9ng, cho ph\u00e9p h\u1ecd tr\u1ed9n, k\u1ebft h\u1ee3p v\u00e0 \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ea7u ra c\u1ee7a t\u1eebng thi\u1ebft b\u1ecb theo hi\u1ec7u \u1ee9ng h\u00ecnh \u1ea3nh mong mu\u1ed1n.<\/p>\n\n\n\n

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\"h\u00ecnh<\/figure>\n<\/div>\n\n\n\n
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\"h\u00ecnh<\/figure>\n<\/div>\n<\/div>\n\n\n\n

DMX ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o?<\/h2>\n\n\n\n

DMX ho\u1ea1t \u0111\u1ed9ng th\u00f4ng qua t\u00edn hi\u1ec7u k\u1ef9 thu\u1eadt s\u1ed1 \u0111\u01b0\u1ee3c truy\u1ec1n t\u1eeb b\u1ed9 \u0111i\u1ec1u khi\u1ec3n<\/strong> \u0111\u1ebfn c\u00e1c thi\u1ebft b\u1ecb chi\u1ebfu s\u00e1ng<\/strong>. K\u1ebft n\u1ed1i \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp qua m\u1ed9t chu\u1ed7i daisy<\/strong>, n\u01a1i t\u00edn hi\u1ec7u ch\u1ea3y t\u1eeb thi\u1ebft b\u1ecb n\u00e0y sang thi\u1ebft b\u1ecb ti\u1ebfp theo theo tr\u00ecnh t\u1ef1. M\u1ed7i thi\u1ebft b\u1ecb di\u1ec5n gi\u1ea3i d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c g\u00e1n c\u1ee7a m\u00ecnh trong khi chuy\u1ec3n ti\u1ebfp t\u00edn hi\u1ec7u \u0111\u1ebfn thi\u1ebft b\u1ecb ti\u1ebfp theo trong chu\u1ed7i.<\/p>\n\n\n\n

Giao di\u1ec7n B\u1ea3n ch\u1ea5t<\/strong> m\u1ed9t chi\u1ec1u<\/p>\n\n\n\n

    \n
  1. c\u1ee7a DMX c\u00f3 ngh\u0129a l\u00e0 t\u00edn hi\u1ec7u ch\u1ea3y theo m\u1ed9t h\u01b0\u1edbng, t\u1eeb b\u1ed9 \u0111i\u1ec1u khi\u1ec3n \u0111\u1ebfn c\u00e1c thi\u1ebft b\u1ecb. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 ph\u00e2n t\u00edch \u0111\u01a1n gi\u1ea3n v\u1ec1 quy tr\u00ecnh:<\/strong>L\u1ec7nh t\u1eeb b\u1ed9 \u0111i\u1ec1u khi\u1ec3n : B\u1ed9<\/a> \u0111i\u1ec1u khi\u1ec3n DMX.<\/li>\n\n\n\n
  2. g\u1eedi d\u1eef li\u1ec7u trong c\u00e1c g\u00f3i ch\u1ee9a th\u00f4ng tin cho t\u1eebng k\u00eanh.<\/strong>Ph\u1ea3n h\u1ed3i c\u1ee7a thi\u1ebft b\u1ecb.<\/li>\n\n\n\n
  3. : C\u00e1c thi\u1ebft b\u1ecb \u201cl\u1eafng nghe\u201d c\u00e1c l\u1ec7nh li\u00ean quan \u0111\u1ebfn k\u00eanh \u0111\u01b0\u1ee3c g\u00e1n c\u1ee7a ch\u00fang v\u00e0 ph\u1ea3n h\u1ed3i t\u01b0\u01a1ng \u1ee9ng. V\u00ed d\u1ee5, n\u1ebfu K\u00eanh 1 \u0111i\u1ec1u khi\u1ec3n c\u01b0\u1eddng \u0111\u1ed9 \u00e1nh s\u00e1ng \u0111\u1ecf, vi\u1ec7c \u0111i\u1ec1u ch\u1ec9nh tr\u00ean b\u1ed9 \u0111i\u1ec1u khi\u1ec3n s\u1ebd \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c g\u00e1n cho K\u00eanh 1.<\/strong>Thi\u1ebft l\u1eadp chu\u1ed7i daisy.<\/li>\n<\/ol>\n\n\n\n

    : C\u00e1c thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i n\u1ed1i ti\u1ebfp, c\u00f3 th\u1ec3 h\u1ed7 tr\u1ee3 nhi\u1ec1u thi\u1ebft b\u1ecb, v\u1edbi m\u1ed7i thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c l\u1eadp tr\u00ecnh \u0111\u1ec3 ph\u1ea3n h\u1ed3i c\u00e1c g\u00e1n k\u00eanh kh\u00e1c nhau.<\/p>\n\n\n\n

    \u0110i\u1ec1u n\u00e0y cho ph\u00e9p ng\u01b0\u1eddi d\u00f9ng DMX v\u1eadn h\u00e0nh c\u00e1c b\u1ed1 tr\u00ed chi\u1ebfu s\u00e1ng ph\u1ee9c t\u1ea1p v\u1edbi n\u1ed7 l\u1ef1c th\u1ee7 c\u00f4ng t\u1ed1i thi\u1ec3u, \u0111\u1ea1t \u0111\u01b0\u1ee3c c\u00e1c m\u00e0n tr\u00ecnh di\u1ec5n \u00e1nh s\u00e1ng ph\u1ed1i h\u1ee3p v\u00e0 ch\u00ednh x\u00e1c.<\/h2>\n\n\n\n

    B\u1ea1n c\u00f3 c\u1ea7n b\u1ed9 \u0111i\u1ec1u khi\u1ec3n DMX cho \u0111\u00e8n kh\u00f4ng? : B\u1ed9<\/strong> Trong h\u1ea7u h\u1ebft c\u00e1c tr\u01b0\u1eddng h\u1ee3p, m\u1ed9t.<\/p>\n\n\n\n

    l\u00e0 c\u1ea7n thi\u1ebft \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c to\u00e0n quy\u1ec1n ki\u1ec3m so\u00e1t thi\u1ebft l\u1eadp chi\u1ebfu s\u00e1ng c\u1ee7a b\u1ea1n. Trong khi m\u1ed9t s\u1ed1 thi\u1ebft b\u1ecb DMX c\u00f3 c\u00e0i \u0111\u1eb7t t\u00edch h\u1ee3p cho ch\u1ebf \u0111\u1ed9 t\u1ef1 \u0111\u1ed9ng ho\u1eb7c ph\u1ea3n \u1ee9ng \u00e2m thanh, b\u1ed9 \u0111i\u1ec1u khi\u1ec3n cung c\u1ea5p t\u00ednh linh ho\u1ea1t \u0111\u1ec3 l\u1eadp tr\u00ecnh th\u1ee7 c\u00f4ng c\u00e1c hi\u1ec7u \u1ee9ng chi\u1ebfu s\u00e1ng. \u0110i\u1ec1u n\u00e0y \u0111\u1eb7c bi\u1ec7t c\u00f3 gi\u00e1 tr\u1ecb trong c\u00e1c m\u00f4i tr\u01b0\u1eddng nh\u01b0 nh\u00e0 h\u00e1t, bu\u1ed5i h\u00f2a nh\u1ea1c v\u00e0 s\u1ef1 ki\u1ec7n n\u01a1i \u00e1nh s\u00e1ng c\u1ea7n thay \u0111\u1ed5i m\u1ed9t c\u00e1ch \u0111\u1ed9ng.<\/p>\n\n\n\n