{"id":7631,"date":"2026-06-17T09:24:00","date_gmt":"2026-06-17T01:24:00","guid":{"rendered":"https:\/\/www.jodoo.com\/blog\/?p=7631"},"modified":"2026-07-13T10:52:30","modified_gmt":"2026-07-13T02:52:30","slug":"thoi-gian-trung-binh-giua-cac-lan-hong-hoc","status":"publish","type":"post","link":"https:\/\/www.jodoo.com\/blog\/vi-vn\/mean-time-between-failures","title":{"rendered":"MTBF: \u00dd ngh\u0129a, c\u00f4ng th\u1ee9c v\u00e0 c\u00e1ch c\u1ea3i thi\u1ec7n \u0111\u1ed9 tin c\u1eady c\u1ee7a thi\u1ebft b\u1ecb"},"content":{"rendered":"

<\/span>Gi\u1edbi thi\u1ec7u: MTBF c\u00f3 ngh\u0129a g\u00ec \u0111\u1ed1i v\u1edbi \u0111\u1ed9 tin c\u1eady c\u1ee7a thi\u1ebft b\u1ecb<\/span><\/h2>\n\n\n\n

Th\u1eddi gian ng\u1eebng ho\u1ea1t \u0111\u1ed9ng ngo\u00e0i k\u1ebf ho\u1ea1ch l\u00e0 m\u1ed9t trong nh\u1eefng c\u00e1ch nhanh nh\u1ea5t \u0111\u1ec3 m\u1ea5t s\u1ea3n l\u01b0\u1ee3ng, n\u0103ng l\u1ef1c l\u00e0m th\u00eam gi\u1edd v\u00e0 s\u1ef1 t\u1ef1 tin v\u1ec1 giao h\u00e0ng. T\u1ea1i nhi\u1ec1u nh\u00e0 m\u00e1y, vi\u1ec7c d\u1eebng ho\u1ea1t \u0111\u1ed9ng m\u1ed9t m\u00e1y m\u00f3c quan tr\u1ecdng c\u00f3 th\u1ec3 g\u00e2y \u1ea3nh h\u01b0\u1edfng lan r\u1ed9ng kh\u1eafp to\u00e0n b\u1ed9 d\u00e2y chuy\u1ec1n, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong m\u00f4i tr\u01b0\u1eddng s\u1ea3n xu\u1ea5t kh\u1ed1i l\u01b0\u1ee3ng l\u1edbn, n\u01a1i m\u1ed7i ph\u00fat b\u1ecb m\u1ea5t \u0111\u1ec1u \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn vi\u1ec7c ho\u00e0n th\u00e0nh ti\u1ebfn \u0111\u1ed9. \u0110\u00f3 l\u00e0 l\u00fd do t\u1ea1i sao MTBF (Th\u1eddi gian trung b\u00ecnh gi\u1eefa c\u00e1c l\u1ea7n h\u1ecfng h\u00f3c)<\/a><\/strong> \u0110i\u1ec1u n\u00e0y r\u1ea5t quan tr\u1ecdng: n\u00f3 cung c\u1ea5p cho b\u1ea1n m\u1ed9t c\u00e1ch th\u1ef1c t\u1ebf \u0111\u1ec3 \u0111o l\u01b0\u1eddng \u0111\u1ed9 tin c\u1eady c\u1ee7a thi\u1ebft b\u1ecb c\u00f3 th\u1ec3 s\u1eeda ch\u1eefa tr\u01b0\u1edbc khi n\u00f3 h\u1ecfng h\u00f3c tr\u1edf l\u1ea1i.<\/p>\n\n\n\n

MTBF (Th\u1eddi gian trung b\u00ecnh gi\u1eefa c\u00e1c l\u1ea7n h\u1ecfng h\u00f3c) cho bi\u1ebft th\u1eddi gian ho\u1ea1t \u0111\u1ed9ng trung b\u00ecnh gi\u1eefa c\u00e1c l\u1ea7n h\u1ecfng h\u00f3c ti\u1ebfp theo. \u0110\u1ed1i v\u1edbi c\u00e1c nh\u00e0 qu\u1ea3n l\u00fd b\u1ea3o tr\u00ec, k\u1ef9 s\u01b0 \u0111\u1ed9 tin c\u1eady v\u00e0 l\u00e3nh \u0111\u1ea1o nh\u00e0 m\u00e1y, \u0111\u00e2y l\u00e0 m\u1ed9t ch\u1ec9 s\u1ed1 gi\u00fap \u0111\u01b0a ra quy\u1ebft \u0111\u1ecbnh, gi\u00fap ph\u00e1t hi\u1ec7n c\u00e1c t\u00e0i s\u1ea3n y\u1ebfu k\u00e9m, so s\u00e1nh xu h\u01b0\u1edbng \u0111\u1ed9 tin c\u1eady theo th\u1eddi gian v\u00e0 \u01b0u ti\u00ean n\u1ed7 l\u1ef1c b\u1ea3o tr\u00ec \u1edf nh\u1eefng n\u01a1i s\u1ebd gi\u1ea3m thi\u1ec3u t\u1ed1i \u0111a c\u00e1c l\u1ea7n d\u1eebng ho\u1ea1t \u0111\u1ed9ng ngo\u00e0i k\u1ebf ho\u1ea1ch.<\/p>\n\n\n\n

Trong c\u00e1c ph\u1ea7n ti\u1ebfp theo, ch\u00fang ta s\u1ebd ph\u00e2n t\u00edch chi ti\u1ebft h\u01a1n v\u1ec1... MTBF<\/a> <\/strong>C\u00f4ng th\u1ee9c, c\u00e1ch t\u00ednh MTBF (Th\u1eddi gian trung b\u00ecnh gi\u1eefa c\u00e1c l\u1ea7n h\u1ecfng h\u00f3c) ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o v\u1edbi d\u1eef li\u1ec7u v\u1eadn h\u00e0nh th\u1ef1c t\u1ebf v\u00e0 gi\u1ea3i th\u00edch c\u00e1ch di\u1ec5n gi\u1ea3i con s\u1ed1 n\u00e0y. B\u1ea1n c\u0169ng s\u1ebd th\u1ea5y MTBF li\u00ean quan nh\u01b0 th\u1ebf n\u00e0o \u0111\u1ebfn hi\u1ec7u su\u1ea5t b\u1ea3o tr\u00ec t\u1ed5ng th\u1ec3 v\u00e0 l\u00e0m th\u1ebf n\u00e0o vi\u1ec7c b\u1ea3o tr\u00ec ph\u00f2ng ng\u1eeba t\u1ed1t h\u01a1n v\u00e0 theo d\u00f5i s\u1ef1 c\u1ed1 m\u00e1y m\u00f3c c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n \u0111\u1ed9 tin c\u1eady c\u1ee7a thi\u1ebft b\u1ecb m\u1ed9t c\u00e1ch c\u00f3 th\u1ec3 \u0111o l\u01b0\u1eddng \u0111\u01b0\u1ee3c.<\/p>\n\n\n\n

<\/span>Gi\u1ea3i th\u00edch v\u1ec1 MTBF: \u0110\u1ecbnh ngh\u0129a, ph\u1ea1m vi v\u00e0 th\u1eddi \u0111i\u1ec3m s\u1eed d\u1ee5ng.<\/span><\/h2>\n\n\n\n

<\/span>Th\u1eddi gian trung b\u00ecnh gi\u1eefa c\u00e1c l\u1ea7n h\u1ecfng h\u00f3c th\u1ef1c s\u1ef1 \u0111o l\u01b0\u1eddng \u0111i\u1ec1u g\u00ec?<\/span><\/h3>\n\n\n\n

MTBF<\/strong><\/a> \u0111o th\u1eddi gian ho\u1ea1t \u0111\u1ed9ng trung b\u00ecnh. t\u00e0i s\u1ea3n c\u00f3 th\u1ec3 s\u1eeda ch\u1eefa<\/strong> N\u00f3 ho\u1ea1t \u0111\u1ed9ng tr\u01b0\u1edbc khi b\u1ecb h\u1ecfng v\u00e0 c\u1ea7n \u0111\u01b0\u1ee3c kh\u00f4i ph\u1ee5c l\u1ea1i. Tr\u00ean th\u1ef1c t\u1ebf, \u0111\u00f3 l\u00e0 m\u1ed9t ch\u1ec9 s\u1ed1 \u0111\u1ed9 tin c\u1eady c\u1ee7a thi\u1ebft b\u1ecb<\/strong> \u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng cho c\u00e1c t\u00e0i s\u1ea3n nh\u01b0 m\u00e1y CNC, b\u0103ng t\u1ea3i, m\u00e1y chi\u1ebft r\u00f3t, m\u00e1y n\u00e9n kh\u00ed v\u00e0 thi\u1ebft b\u1ecb l\u1eafp \u0111\u1eb7t SMT. N\u00f3 kh\u00f4ng cho b\u1ea1n bi\u1ebft m\u00e1y s\u1ebd ho\u1ea1t \u0111\u1ed9ng \u0111\u01b0\u1ee3c bao l\u00e2u m\u00e3i m\u00e3i; m\u00e0 cho b\u1ea1n bi\u1ebft t\u1ea7n su\u1ea5t x\u1ea3y ra s\u1ef1 c\u1ed1 trong m\u1ed9t kho\u1ea3ng th\u1eddi gian ho\u1ea1t \u0111\u1ed9ng nh\u1ea5t \u0111\u1ecbnh.<\/p>\n\n\n\n

S\u1ef1 kh\u00e1c bi\u1ec7t \u0111\u00f3 r\u1ea5t quan tr\u1ecdng v\u00ec MTBF (Th\u1eddi gian gi\u1eefa c\u00e1c l\u1ea7n h\u1ecfng h\u00f3c) \u0111\u1ec1 c\u1eadp \u0111\u1ebfn kho\u1ea3ng th\u1eddi gian gi\u1eefa c\u00e1c l\u1ea7n h\u1ecfng h\u00f3c, ch\u1ee9 kh\u00f4ng ph\u1ea3i t\u1ed5ng tu\u1ed5i th\u1ecd c\u1ee7a t\u00e0i s\u1ea3n. M\u1ed9t trung t\u00e2m gia c\u00f4ng trong d\u00e2y chuy\u1ec1n s\u1ea3n xu\u1ea5t \u00f4 t\u00f4 c\u00f3 th\u1ec3 b\u1ecb h\u1ecfng, \u0111\u01b0\u1ee3c s\u1eeda ch\u1eefa v\u00e0 quay tr\u1edf l\u1ea1i s\u1ea3n xu\u1ea5t nhi\u1ec1u l\u1ea7n trong m\u1ed9t qu\u00fd, khi\u1ebfn MTBF tr\u1edf n\u00ean h\u1eefu \u00edch cho vi\u1ec7c ph\u00e2n t\u00edch xu h\u01b0\u1edbng. Ng\u01b0\u1ee3c l\u1ea1i, n\u1ebfu m\u1ed9t b\u1ed9 ph\u1eadn b\u1ecb lo\u1ea1i b\u1ecf khi h\u1ecfng thay v\u00ec \u0111\u01b0\u1ee3c s\u1eeda ch\u1eefa, th\u00ec MTBF th\u01b0\u1eddng kh\u00f4ng ph\u1ea3i l\u00e0 ch\u1ec9 s\u1ed1 ph\u00f9 h\u1ee3p.<\/p>\n\n\n\n

<\/span>MTBF \u00e1p d\u1ee5ng cho c\u00e1c t\u00e0i s\u1ea3n c\u00f3 th\u1ec3 s\u1eeda ch\u1eefa.<\/span><\/h3>\n\n\n\n

MTBF (Th\u1eddi gian trung b\u00ecnh gi\u1eefa c\u00e1c l\u1ea7n h\u1ecfng h\u00f3c) n\u00ean \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho c\u00e1c t\u00e0i s\u1ea3n \u0111\u01b0\u1ee3c k\u1ef3 v\u1ecdng s\u1ebd ho\u1ea1t \u0111\u1ed9ng, h\u1ecfng h\u00f3c, \u0111\u01b0\u1ee3c s\u1eeda ch\u1eefa v\u00e0 sau \u0111\u00f3 ho\u1ea1t \u0111\u1ed9ng tr\u1edf l\u1ea1i. C\u00e1c v\u00ed d\u1ee5 \u0111i\u1ec3n h\u00ecnh bao g\u1ed3m tr\u1ea1m h\u00e0n robot, l\u00f2 nung ch\u1ea3y tr\u00ean d\u00e2y chuy\u1ec1n \u0111i\u1ec7n t\u1eed ho\u1eb7c m\u00e1y b\u01a1m trong h\u1ec7 th\u1ed1ng ch\u1ebf bi\u1ebfn th\u1ef1c ph\u1ea9m. C\u00e1c t\u00e0i s\u1ea3n n\u00e0y c\u00f3 th\u1ec3 g\u1eb7p ph\u1ea3i c\u00e1c s\u1ef1 c\u1ed1 h\u1ecfng h\u00f3c l\u1eb7p \u0111i l\u1eb7p l\u1ea1i, \u0111i\u1ec1u n\u00e0y l\u00e0m cho th\u1eddi gian trung b\u00ecnh gi\u1eefa c\u00e1c l\u1ea7n h\u1ecfng h\u00f3c tr\u1edf th\u00e0nh m\u1ed9t c\u00e1ch th\u1ef1c t\u1ebf \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 \u0111\u1ed9 tin c\u1eady theo th\u1eddi gian.<\/p>\n\n\n\n

V\u00ec c\u00e1c m\u1eb7t h\u00e0ng kh\u00f4ng th\u1ec3 s\u1eeda ch\u1eefa<\/strong>, C\u00e1c \u0111\u1ed9i th\u01b0\u1eddng s\u1eed d\u1ee5ng MTTF<\/strong> Thay v\u00ec MTBF (Th\u1eddi gian trung b\u00ecnh gi\u1eefa c\u00e1c l\u1ea7n h\u1ecfng h\u00f3c), ng\u01b0\u1eddi ta th\u01b0\u1eddng thay th\u1ebf pin c\u1ea3m bi\u1ebfn, c\u1ea7u ch\u00ec, l\u01b0\u1ee1i c\u1eaft, h\u1ed9p l\u1ecdc ho\u1eb7c c\u00e1c linh ki\u1ec7n ti\u00eau hao kh\u00e1c khi ch\u00fang h\u1ebft tu\u1ed5i th\u1ecd thay v\u00ec s\u1eeda ch\u1eefa v\u00e0 \u0111\u01b0a tr\u1edf l\u1ea1i s\u1eed d\u1ee5ng. Vi\u1ec7c tr\u1ed9n l\u1eabn c\u00e1c h\u1ea1ng m\u1ee5c c\u00f3 th\u1ec3 s\u1eeda ch\u1eefa v\u00e0 kh\u00f4ng th\u1ec3 s\u1eeda ch\u1eefa trong c\u00f9ng m\u1ed9t ph\u00e9p t\u00ednh MTBF s\u1ebd t\u1ea1o ra d\u1eef li\u1ec7u \u0111\u1ed9 tin c\u1eady sai l\u1ec7ch v\u00e0 l\u00e0m suy y\u1ebfu c\u00e1c quy\u1ebft \u0111\u1ecbnh b\u1ea3o tr\u00ec.<\/p>\n\n\n\n

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

<\/span>\u0110i\u1ec1u g\u00ec \u0111\u01b0\u1ee3c coi l\u00e0 th\u1ea5t b\u1ea1i<\/span><\/h3>\n\n\n\n

M\u1ed9t th\u1ea5t b\u1ea1i cho MTBF<\/strong><\/a> M\u1ee5c \u0111\u00edch c\u1ee7a s\u1ef1 c\u1ed1 l\u00e0 b\u1ea5t k\u1ef3 s\u1ef1 ki\u1ec7n n\u00e0o khi\u1ebfn t\u00e0i s\u1ea3n m\u1ea5t \u0111i ch\u1ee9c n\u0103ng d\u1ef1 \u0111\u1ecbnh v\u00e0 c\u1ea7n c\u00f3 h\u00e0nh \u0111\u1ed9ng kh\u1eafc ph\u1ee5c tr\u01b0\u1edbc khi ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng c\u00f3 th\u1ec3 ti\u1ebfp t\u1ee5c. Trong m\u1ed9t d\u00e2y chuy\u1ec1n gia c\u00f4ng \u00f4 t\u00f4, \u0111\u00f3 c\u00f3 th\u1ec3 l\u00e0 l\u1ed7i tr\u1ee5c ch\u00ednh l\u00e0m d\u1eebng tr\u1ea1m l\u00e0m vi\u1ec7c. Tr\u00ean d\u00e2y chuy\u1ec1n l\u1eafp r\u00e1p \u0111i\u1ec7n t\u1eed, \u0111\u00f3 c\u00f3 th\u1ec3 l\u00e0 l\u1ed7i \u0111i\u1ec1u khi\u1ec3n b\u1ed9 c\u1ea5p li\u1ec7u l\u00e0m d\u1eebng vi\u1ec7c \u0111\u1eb7t linh ki\u1ec7n. Trong d\u00e2y chuy\u1ec1n ch\u1ebf bi\u1ebfn th\u1ef1c ph\u1ea9m, l\u1ed7i gio\u0103ng b\u01a1m l\u00e0m gi\u00e1n \u0111o\u1ea1n d\u00f2ng ch\u1ea3y s\u1ea3n ph\u1ea9m th\u01b0\u1eddng \u0111\u01b0\u1ee3c t\u00ednh l\u00e0 m\u1ed9t s\u1ef1 c\u1ed1.<\/p>\n\n\n\n

\u0110i\u1ec1u m\u1ea5u ch\u1ed1t l\u00e0 t\u00ednh nh\u1ea5t qu\u00e1n<\/strong>. N\u1ebfu m\u1ed9t ca ch\u1ec9 ghi nh\u1eadn c\u00e1c s\u1ef1 c\u1ed1 d\u1eebng ho\u00e0n to\u00e0n v\u00e0 ca kh\u00e1c ghi nh\u1eadn c\u1ea3 c\u00e1c s\u1ef1 c\u1ed1 d\u1eebng v\u00e0 c\u00e1c s\u1ef1 ki\u1ec7n gi\u1ea3m t\u1ed1c \u0111\u1ed9 nghi\u00eam tr\u1ecdng, th\u00ec ph\u00e9p t\u00ednh MTBF c\u1ee7a b\u1ea1n s\u1ebd kh\u00f4ng th\u1ec3 so s\u00e1nh \u0111\u01b0\u1ee3c gi\u1eefa c\u00e1c kho\u1ea3ng th\u1eddi gian ho\u1eb7c d\u00e2y chuy\u1ec1n s\u1ea3n xu\u1ea5t. C\u00e1c nh\u00e0 m\u00e1y c\u1ea7n m\u1ed9t quy t\u1eafc r\u00f5 r\u00e0ng v\u1ec1 vi\u1ec7c li\u1ec7u c\u00e1c l\u1ed7i nh\u1ecf, vi\u1ec7c kh\u1edfi \u0111\u1ed9ng l\u1ea1i t\u1ea1m th\u1eddi v\u00e0 c\u00e1c s\u1ef1 ki\u1ec7n gi\u1ea3m hi\u1ec7u su\u1ea5t c\u00f3 \u0111\u01b0\u1ee3c t\u00ednh l\u00e0 l\u1ed7i hay \u0111\u01b0\u1ee3c theo d\u00f5i ri\u00eang bi\u1ec7t th\u00f4ng qua c\u00e1c ti\u00eau chu\u1ea9n theo d\u00f5i l\u1ed7i m\u00e1y m\u00f3c.<\/p>\n\n\n\n

<\/span>Th\u1eddi gian ho\u1ea1t \u0111\u1ed9ng \u0111\u01b0\u1ee3c t\u00ednh nh\u01b0 th\u1ebf n\u00e0o?<\/span><\/h3>\n\n\n\n

Th\u1eddi gian ho\u1ea1t \u0111\u1ed9ng<\/strong> \u0110\u00e2y l\u00e0 kho\u1ea3ng th\u1eddi gian m\u00e0 t\u00e0i s\u1ea3n th\u1ef1c s\u1ef1 s\u1eb5n s\u00e0ng cho s\u1ea3n xu\u1ea5t v\u00e0 d\u1ef1 ki\u1ebfn s\u1ebd ho\u1ea1t \u0111\u1ed9ng. Kho\u1ea3ng th\u1eddi gian n\u00e0y th\u01b0\u1eddng kh\u00f4ng bao g\u1ed3m c\u00e1c l\u1ea7n ng\u1eebng ho\u1ea1t \u0111\u1ed9ng theo k\u1ebf ho\u1ea1ch nh\u01b0 b\u1ea3o tr\u00ec \u0111\u1ecbnh k\u1ef3, ngh\u1ec9 l\u1ec5, thay \u0111\u1ed5i s\u1ea3n ph\u1ea9m v\u00e0 c\u00e1c kho\u1ea3ng th\u1eddi gian kh\u00f4ng s\u1ea3n xu\u1ea5t \u0111\u01b0\u1ee3c ph\u00ea duy\u1ec7t kh\u00e1c. N\u1ebfu b\u1ea1n t\u00ednh c\u1ea3 th\u1eddi gian ng\u1eebng ho\u1ea1t \u0111\u1ed9ng theo k\u1ebf ho\u1ea1ch v\u00e0o m\u1eabu s\u1ed1, th\u1eddi gian trung b\u00ecnh gi\u1eefa c\u00e1c l\u1ea7n h\u1ecfng h\u00f3c s\u1ebd tr\u00f4ng t\u1ed1t h\u01a1n so v\u1edbi hi\u1ec7u su\u1ea5t th\u1ef1c t\u1ebf c\u1ee7a m\u00e1y.<\/p>\n\n\n\n

Quy t\u1eafc c\u1ee5 th\u1ec3 c\u1ea7n ph\u1ea3i ph\u00f9 h\u1ee3p v\u1edbi m\u00f4i tr\u01b0\u1eddng s\u1ea3n xu\u1ea5t. V\u00ed d\u1ee5, m\u1ed9t d\u00e2y chuy\u1ec1n SMT ho\u1ea1t \u0111\u1ed9ng hai ca c\u1ea7n t\u00ednh to\u00e1n th\u1eddi gian v\u1eadn h\u00e0nh kh\u00e1c v\u1edbi m\u1ed9t d\u00e2y chuy\u1ec1n \u0111\u00f3ng chai \u0111\u1ed3 u\u1ed1ng ho\u1ea1t \u0111\u1ed9ng 24\/7. M\u1ee5c ti\u00eau kh\u00f4ng ph\u1ea3i l\u00e0 l\u00e0m cho con s\u1ed1 l\u1edbn h\u01a1n, m\u00e0 l\u00e0 l\u00e0m cho n\u00f3 \u0111\u1ee7 ch\u00ednh x\u00e1c \u0111\u1ec3 h\u1ed7 tr\u1ee3 ph\u00e2n t\u00edch \u0111\u1ed9 tin c\u1eady sau n\u00e0y.<\/p>\n\n\n\n

<\/span>Khi n\u00e0o MTBF (Th\u1eddi gian trung b\u00ecnh gi\u1eefa c\u00e1c l\u1ea7n h\u1ecfng h\u00f3c) h\u1eefu \u00edch nh\u1ea5t<\/span><\/h3>\n\n\n\n

MTBF<\/a><\/strong> C\u00f4ng c\u1ee5 n\u00e0y h\u1eefu \u00edch nh\u1ea5t khi b\u1ea1n \u0111\u00e1nh gi\u00e1 h\u00e0nh vi h\u1ecfng h\u00f3c \u0111\u1ecbnh k\u1ef3 tr\u00ean c\u00e1c t\u00e0i s\u1ea3n s\u1ea3n xu\u1ea5t quan tr\u1ecdng. N\u00f3 ho\u1ea1t \u0111\u1ed9ng t\u1ed1t \u0111\u1ec3 so s\u00e1nh c\u00f9ng m\u1ed9t m\u00e1y m\u00f3c qua c\u00e1c th\u00e1ng kh\u00e1c nhau, x\u00e1c \u0111\u1ecbnh thi\u1ebft b\u1ecb y\u1ebfu trong d\u00e2y chuy\u1ec1n s\u1ea3n xu\u1ea5t v\u00e0 ki\u1ec3m tra xem c\u00e1c thay \u0111\u1ed5i b\u1ea3o tr\u00ec ph\u00f2ng ng\u1eeba c\u00f3 l\u00e0m gi\u1ea3m t\u1ea7n su\u1ea5t h\u1ecfng h\u00f3c hay kh\u00f4ng. N\u00f3 \u00edt h\u1eefu \u00edch h\u01a1n \u0111\u1ed1i v\u1edbi c\u00e1c s\u1ef1 c\u1ed1 x\u1ea3y ra m\u1ed9t l\u1ea7n, thi\u1ebft b\u1ecb d\u1ef1 ph\u00f2ng \u00edt \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ho\u1eb7c c\u00e1c b\u1ed9 ph\u1eadn d\u00f9ng m\u1ed9t l\u1ea7n kh\u00f4ng c\u00f3 chu k\u1ef3 s\u1eeda ch\u1eefa.<\/p>\n\n\n\n

N\u1ebfu s\u1eed d\u1ee5ng \u0111\u00fang c\u00e1ch, MTBF (Th\u1eddi gian trung b\u00ecnh gi\u1eefa c\u00e1c l\u1ea7n h\u1ecfng h\u00f3c) cung c\u1ea5p cho c\u00e1c \u0111\u1ed9i b\u1ea3o tr\u00ec v\u00e0 v\u1eadn h\u00e0nh m\u1ed9t ng\u00f4n ng\u1eef chung v\u1ec1 \u0111\u1ed9 tin c\u1eady. N\u00f3 gi\u00fap b\u1ea1n chuy\u1ec3n t\u1eeb nh\u1eefng nh\u1eadn \u0111\u1ecbnh mang t\u00ednh giai tho\u1ea1i nh\u01b0 \u201cm\u00e1y n\u00e0y l\u00fac n\u00e0o c\u0169ng h\u1ecfng\u201d sang m\u1ed9t m\u00f4 h\u00ecnh c\u00f3 th\u1ec3 \u0111o l\u01b0\u1eddng \u0111\u01b0\u1ee3c d\u1ef1a tr\u00ean s\u1ed1 gi\u1edd ho\u1ea1t \u0111\u1ed9ng v\u00e0 c\u00e1c l\u1ea7n h\u1ecfng h\u00f3c l\u1eb7p l\u1ea1i. B\u01b0\u1edbc ti\u1ebfp theo l\u00e0 \u0111\u1ea3m b\u1ea3o con s\u1ed1 \u0111\u01b0\u1ee3c t\u00ednh to\u00e1n ch\u00ednh x\u00e1c t\u1eeb d\u1eef li\u1ec7u v\u1eadn h\u00e0nh th\u1ef1c t\u1ebf, \u0111\u00e2y l\u00e0 n\u01a1i m\u00e0 c\u00f4ng th\u1ee9c v\u00e0 c\u00e1c quy t\u1eafc nh\u1eadp li\u1ec7u tr\u1edf n\u00ean quan tr\u1ecdng nh\u1ea5t.<\/p>\n\n\n\n

<\/span>C\u00f4ng th\u1ee9c MTBF v\u00e0 c\u00e1ch t\u00ednh to\u00e1n ch\u00ednh x\u00e1c<\/span><\/h2>\n\n\n\n

<\/span>C\u00f4ng th\u1ee9c MTBF c\u01a1 b\u1ea3n<\/span><\/h3>\n\n\n\n

C\u00e1i MTBF<\/strong><\/a> C\u00f4ng th\u1ee9c r\u1ea5t \u0111\u01a1n gi\u1ea3n: T\u1ed5ng th\u1eddi gian ho\u1ea1t \u0111\u1ed9ng \u00f7 s\u1ed1 l\u1ea7n h\u1ecfng h\u00f3c<\/strong>. Tr\u00ean th\u1ef1c t\u1ebf, ph\u1ea7n kh\u00f3 kh\u00f4ng ph\u1ea3i l\u00e0 t\u00ednh to\u00e1n m\u00e0 l\u00e0 quy\u1ebft \u0111\u1ecbnh th\u1eddi gian n\u00e0o \u0111\u01b0\u1ee3c t\u00ednh l\u00e0 th\u1eddi gian ho\u1ea1t \u0111\u1ed9ng v\u00e0 th\u1eddi gian n\u00e0o n\u00ean \u0111\u01b0\u1ee3c ghi nh\u1eadn l\u00e0 s\u1ef1 c\u1ed1. N\u1ebfu c\u00e1c th\u00f4ng tin \u0111\u1ea7u v\u00e0o n\u00e0y kh\u00f4ng nh\u1ea5t qu\u00e1n, ph\u00e9p t\u00ednh MTBF c\u1ee7a b\u1ea1n s\u1ebd tr\u1edf n\u00ean kh\u00f4ng \u0111\u00e1ng tin c\u1eady v\u00e0 kh\u00f4ng c\u00f2n l\u00e0 m\u1ed9t ch\u1ec9 s\u1ed1 h\u1eefu \u00edch v\u1ec1 \u0111\u1ed9 tin c\u1eady c\u1ee7a thi\u1ebft b\u1ecb n\u1eefa.<\/p>\n\n\n\n

\u0110\u1ed1i v\u1edbi h\u1ea7u h\u1ebft c\u00e1c t\u00e0i s\u1ea3n s\u1ea3n xu\u1ea5t, b\u1ea1n n\u00ean s\u1eed d\u1ee5ng th\u1eddi gian ch\u1ea1y th\u1ef1c t\u1ebf<\/strong> Trong kho\u1ea3ng th\u1eddi gian \u0111\u00e3 ch\u1ecdn, kh\u00f4ng ph\u1ea3i th\u1eddi gian theo l\u1ecbch. \u0110i\u1ec1u \u0111\u00f3 c\u00f3 ngh\u0129a l\u00e0 lo\u1ea1i tr\u1eeb c\u00e1c l\u1ea7n ng\u1eebng ho\u1ea1t \u0111\u1ed9ng theo k\u1ebf ho\u1ea1ch nh\u01b0 ng\u00e0y l\u1ec5, th\u1eddi gian chuy\u1ec3n \u0111\u1ed5i theo l\u1ecbch tr\u00ecnh, th\u1eddi gian b\u1ea3o tr\u00ec ph\u00f2ng ng\u1eeba v\u00e0 th\u1eddi gian d\u1eebng \u0111\u1ec3 v\u1ec7 sinh d\u00e2y chuy\u1ec1n \u0111\u00e3 \u0111\u01b0\u1ee3c ph\u00ea duy\u1ec7t. M\u1ee5c ti\u00eau l\u00e0 \u0111o l\u01b0\u1eddng th\u1eddi gian thi\u1ebft b\u1ecb ho\u1ea1t \u0111\u1ed9ng gi\u1eefa c\u00e1c s\u1ef1 c\u1ed1 ngo\u00e0i k\u1ebf ho\u1ea1ch, ch\u1ee9 kh\u00f4ng ph\u1ea3i th\u1eddi gian thi\u1ebft b\u1ecb t\u1ed3n t\u1ea1i trong x\u01b0\u1edfng s\u1ea3n xu\u1ea5t.<\/p>\n\n\n\n

<\/span>V\u00ed d\u1ee5 v\u1ec1 c\u00e1ch t\u00ednh MTBF t\u1eebng b\u01b0\u1edbc<\/span><\/h3>\n\n\n\n

H\u00e3y xem x\u00e9t m\u1ed9t trung t\u00e2m gia c\u00f4ng CNC trong m\u1ed9t nh\u00e0 m\u00e1y s\u1ea3n xu\u1ea5t linh ki\u1ec7n kim lo\u1ea1i trong kho\u1ea3ng th\u1eddi gian b\u00e1o c\u00e1o 30 ng\u00e0y. Trong th\u00e1ng \u0111\u00f3, m\u00e1y \u0111\u01b0\u1ee3c l\u00ean l\u1ecbch ho\u1ea1t \u0111\u1ed9ng 480 gi\u1edd, nh\u01b0ng c\u00f3 52 gi\u1edd ng\u1eebng ho\u1ea1t \u0111\u1ed9ng theo k\u1ebf ho\u1ea1ch d\u00e0nh cho vi\u1ec7c t\u1eaft m\u00e1y v\u00e0o cu\u1ed1i tu\u1ea7n, ch\u01b0\u01a1ng tr\u00ecnh thay dao v\u00e0 b\u1ea3o tr\u00ec ph\u00f2ng ng\u1eeba. \u0110i\u1ec1u \u0111\u00f3 c\u00f3 ngh\u0129a l\u00e0 c\u00f2n l\u1ea1i 428 gi\u1edd ho\u1ea1t \u0111\u1ed9ng \u0111\u1ec3 s\u1eed d\u1ee5ng trong t\u00ednh to\u00e1n MTBF (Th\u1eddi gian trung b\u00ecnh gi\u1eefa c\u00e1c l\u1ea7n h\u1ecfng h\u00f3c).<\/p>\n\n\n\n

Gi\u1ea3 s\u1eed nh\u1eadt k\u00fd b\u1ea3o tr\u00ec ghi nh\u1eadn 4 s\u1ef1 c\u1ed1 ngo\u00e0i k\u1ebf ho\u1ea1ch trong v\u00f2ng 428 gi\u1edd \u0111\u00f3. C\u00e1c s\u1ef1 c\u1ed1 bao g\u1ed3m: l\u1ed7i b\u1ed9 truy\u1ec1n \u0111\u1ed9ng tr\u1ee5c ch\u00ednh, s\u1ef1 c\u1ed1 b\u01a1m ch\u1ea5t l\u00e0m m\u00e1t, l\u1ed7i c\u1ea3m bi\u1ebfn kho d\u1ee5ng c\u1ee5 v\u00e0 c\u1ea3nh b\u00e1o \u00e1p su\u1ea5t b\u00f4i tr\u01a1n l\u00e0m d\u1eebng s\u1ea3n xu\u1ea5t v\u00e0 c\u1ea7n s\u1eeda ch\u1eefa. C\u00e1ch t\u00ednh MTBF (Th\u1eddi gian trung b\u00ecnh gi\u1eefa c\u00e1c l\u1ea7n h\u1ecfng h\u00f3c) l\u00e0: 428 gi\u1edd \u00f7 4 s\u1ef1 c\u1ed1 = 107 gi\u1edd.<\/p>\n\n\n\n

B\u1ea1n c\u00f3 th\u1ec3 t\u00ednh to\u00e1n nh\u01b0 sau: th\u1eddi gian d\u1ef1 ki\u1ebfn = 480 gi\u1edd, tr\u1eeb th\u1eddi gian ng\u1eebng ho\u1ea1t \u0111\u1ed9ng theo k\u1ebf ho\u1ea1ch = 52 gi\u1edd, cho ra th\u1eddi gian ho\u1ea1t \u0111\u1ed9ng th\u1ef1c t\u1ebf = 428 gi\u1edd; sau \u0111\u00f3 chia cho 4 s\u1ef1 c\u1ed1 \u0111\u1ec3 \u0111\u01b0\u1ee3c MTBF l\u00e0 107 gi\u1edd. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 m\u00e1y m\u00f3c \u0111\u00e3 ho\u1ea1t \u0111\u1ed9ng trung b\u00ecnh 107 gi\u1edd gi\u1eefa c\u00e1c l\u1ea7n h\u1ecfng h\u00f3c trong th\u00e1ng \u0111\u00f3. Con s\u1ed1 n\u00e0y h\u1eefu \u00edch h\u01a1n nhi\u1ec1u so v\u1edbi \u01b0\u1edbc t\u00ednh s\u01a1 b\u1ed9 d\u1ef1a tr\u00ean tr\u00ed nh\u1edb ho\u1eb7c t\u1eeb c\u00e1c ghi ch\u00fa kh\u00f4ng \u0111\u1ea7y \u0111\u1ee7 trong b\u1ea3ng t\u00ednh.<\/p>\n\n\n\n

\"V\u00ed<\/figure>\n\n\n\n

<\/span>C\u00e1c quy\u1ebft \u0111\u1ecbnh \u0111\u1ea7u v\u00e0o l\u00e0m thay \u0111\u1ed5i k\u1ebft qu\u1ea3<\/span><\/h3>\n\n\n\n

M\u1ed9t l\u1ed7i th\u01b0\u1eddng g\u1eb7p l\u00e0 coi m\u1ecdi s\u1ef1 c\u1ed1 nh\u1ecf l\u00e0 m\u1ed9t l\u1ed7i h\u1ecfng h\u00f3c. N\u1ebfu m\u00e1y m\u00f3c ch\u1ea1y ch\u1eadm l\u1ea1i trong ba ph\u00fat v\u00ec ng\u01b0\u1eddi v\u1eadn h\u00e0nh d\u1ecdn d\u1eb9p ph\u00f4i v\u1ee5n m\u00e0 kh\u00f4ng c\u00f3 s\u1ef1 can thi\u1ec7p c\u1ee7a b\u1ed9 ph\u1eadn b\u1ea3o tr\u00ec, nhi\u1ec1u nh\u00e0 m\u00e1y s\u1ebd ghi nh\u1eadn \u0111\u00f3 l\u00e0 m\u1ed9t s\u1ef1 c\u1ed1 nh\u1ecf, ch\u1ee9 kh\u00f4ng ph\u1ea3i l\u00e0 l\u1ed7i h\u1ecfng h\u00f3c. Nh\u01b0ng n\u1ebfu s\u1ef1 ki\u1ec7n t\u01b0\u01a1ng t\u1ef1 k\u00edch ho\u1ea1t b\u00e1o \u0111\u1ed9ng, l\u00e0m d\u1eebng m\u00e1y v\u00e0 c\u1ea7n s\u1ef1 can thi\u1ec7p c\u1ee7a k\u1ef9 thu\u1eadt vi\u00ean, th\u00ec th\u00f4ng th\u01b0\u1eddng n\u00f3 n\u00ean \u0111\u01b0\u1ee3c t\u00ednh v\u00e0o vi\u1ec7c theo d\u00f5i l\u1ed7i m\u00e1y m\u00f3c.<\/p>\n\n\n\n

C\u00e1c s\u1ef1 c\u1ed1 c\u1ee5c b\u1ed9 c\u0169ng c\u1ea7n c\u00f3 quy t\u1eafc. N\u1ebfu m\u00e1y v\u1eabn ho\u1ea1t \u0111\u1ed9ng \u1edf t\u1ed1c \u0111\u1ed9 gi\u1ea3m do m\u1ed9t h\u1ec7 th\u1ed1ng con kh\u00f4ng \u1ed5n \u0111\u1ecbnh, b\u1ea1n c\u1ea7n quy\u1ebft \u0111\u1ecbnh tr\u01b0\u1edbc xem s\u1ef1 ki\u1ec7n \u0111\u00f3 c\u00f3 \u0111\u01b0\u1ee3c coi l\u00e0 l\u1ed7i cho m\u1ee5c \u0111\u00edch MTBF (Th\u1eddi gian trung b\u00ecnh gi\u1eefa c\u00e1c l\u1ea7n h\u1ecfng h\u00f3c) hay kh\u00f4ng. C\u00e1ch ti\u1ebfp c\u1eadn t\u1ed1t nh\u1ea5t l\u00e0 s\u1eed d\u1ee5ng m\u1ed9t ti\u00eau chu\u1ea9n b\u1eb1ng v\u0103n b\u1ea3n g\u1eafn li\u1ec1n v\u1edbi t\u00e1c \u0111\u1ed9ng \u0111\u1ebfn s\u1ea3n xu\u1ea5t, ch\u1eb3ng h\u1ea1n nh\u01b0 b\u1ea5t k\u1ef3 s\u1ef1 ki\u1ec7n n\u00e0o g\u00e2y ra vi\u1ec7c d\u1eebng m\u00e1y ngo\u00e0i k\u1ebf ho\u1ea1ch l\u00e2u h\u01a1n 10 ph\u00fat ho\u1eb7c y\u00eau c\u1ea7u b\u1ea3o tr\u00ec.<\/p>\n\n\n\n

C\u00e1i k\u1ef3 b\u00e1o c\u00e1o<\/strong> Th\u1eddi gian l\u1ea5y m\u1eabu m\u1ed9t tu\u1ea7n c\u0169ng r\u1ea5t quan tr\u1ecdng. M\u1eabu m\u1ed9t tu\u1ea7n c\u00f3 th\u1ec3 qu\u00e1 ng\u1eafn \u0111\u1ed1i v\u1edbi c\u00e1c t\u00e0i s\u1ea3n quan tr\u1ecdng c\u00f3 t\u1ef7 l\u1ec7 h\u1ecfng h\u00f3c th\u1ea5p, trong khi m\u1eabu c\u1ea3 n\u0103m c\u00f3 th\u1ec3 che gi\u1ea5u s\u1ef1 xu\u1ed1ng c\u1ea5p g\u1ea7n \u0111\u00e2y sau khi thay \u0111\u1ed5i quy tr\u00ecnh ho\u1eb7c thay \u0111\u1ed5i t\u1ea3i v\u1eadn h\u00e0nh. Nhi\u1ec1u nh\u00e0 m\u00e1y b\u1eaft \u0111\u1ea7u b\u1eb1ng vi\u1ec7c theo d\u00f5i MTBF h\u00e0ng th\u00e1ng \u0111\u1ec3 ki\u1ec3m so\u00e1t h\u00e0ng ng\u00e0y v\u00e0 xem x\u00e9t xu h\u01b0\u1edbng h\u00e0ng qu\u00fd \u0111\u1ec3 x\u00e1c nh\u1eadn xem \u0111\u1ed9 tin c\u1eady c\u00f3 th\u1ef1c s\u1ef1 \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n hay kh\u00f4ng.<\/p>\n\n\n\n

<\/span>L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o t\u00ednh ch\u00ednh x\u00e1c c\u1ee7a ph\u00e9p t\u00ednh<\/span><\/h3>\n\n\n\n

N\u1ebfu b\u1ea1n mu\u1ed1n c\u00f3 s\u1ed1 li\u1ec7u th\u1eddi gian trung b\u00ecnh gi\u1eefa c\u00e1c l\u1ea7n h\u1ecfng h\u00f3c \u0111\u00e1ng tin c\u1eady, h\u00e3y \u00e1p d\u1ee5ng c\u00f9ng m\u1ed9t quy t\u1eafc m\u1ed7i th\u00e1ng tr\u00ean t\u1ea5t c\u1ea3 c\u00e1c ca l\u00e0m vi\u1ec7c v\u00e0 d\u00e2y chuy\u1ec1n s\u1ea3n xu\u1ea5t. Chu\u1ea9n h\u00f3a m\u00e3 l\u1ed7i, logic th\u1eddi gian v\u1eadn h\u00e0nh v\u00e0 c\u00e1c lo\u1ea1i th\u1eddi gian ng\u1eebng ho\u1ea1t \u0111\u1ed9ng tr\u01b0\u1edbc khi l\u1eadp b\u00e1o c\u00e1o. S\u1ef1 tu\u00e2n th\u1ee7 n\u00e0y s\u1ebd gi\u00fap c\u00e1c quy\u1ebft \u0111\u1ecbnh sau n\u00e0y v\u1ec1 b\u1ea3o tr\u00ec ph\u00f2ng ng\u1eeba v\u00e0 c\u1ea3i thi\u1ec7n \u0111\u1ed9 tin c\u1eady tr\u1edf n\u00ean thuy\u1ebft ph\u1ee5c h\u01a1n nhi\u1ec1u.<\/p>\n\n\n\n

<\/span>C\u00e1ch di\u1ec5n gi\u1ea3i MTBF c\u00f9ng v\u1edbi MTTR, MTTF v\u00e0 hi\u1ec7u su\u1ea5t b\u1ea3o tr\u00ec<\/span><\/h2>\n\n\n\n

<\/span>MTBF ch\u1ec9 h\u1eefu \u00edch trong b\u1ed1i c\u1ea3nh c\u1ee5 th\u1ec3.<\/span><\/h3>\n\n\n\n

Cao h\u01a1n th\u1eddi gian trung b\u00ecnh gi\u1eefa c\u00e1c l\u1ea7n h\u1ecfng h\u00f3c<\/a><\/strong> Th\u00f4ng th\u01b0\u1eddng, ch\u1ec9 s\u1ed1 MTBF (Th\u1eddi gian trung b\u00ecnh gi\u1eefa c\u00e1c l\u1ea7n h\u1ecfng h\u00f3c) cho th\u1ea5y \u0111\u1ed9 tin c\u1eady t\u1ed1t h\u01a1n, nh\u01b0ng con s\u1ed1 n\u00e0y kh\u00f4ng c\u00f3 nhi\u1ec1u \u00fd ngh\u0129a n\u1ebfu thi\u1ebfu ng\u1eef c\u1ea3nh. M\u1ed9t tr\u1ee5c ch\u00ednh CNC ho\u1ea1t \u0111\u1ed9ng 20 gi\u1edd m\u1ed7i ng\u00e0y d\u01b0\u1edbi t\u1ea3i tr\u1ecdng n\u1eb7ng s\u1ebd c\u00f3 m\u1ee9c \u0111\u1ed9 tin c\u1eady c\u01a1 b\u1ea3n kh\u00e1c bi\u1ec7t r\u1ea5t nhi\u1ec1u so v\u1edbi m\u1ed9t \u0111\u1ed9ng c\u01a1 b\u0103ng t\u1ea3i ho\u1ea1t \u0111\u1ed9ng \u1edf t\u1ea3i tr\u1ecdng th\u1ea5p ch\u1ec9 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong qu\u00e1 tr\u00ecnh thay \u0111\u1ed5i s\u1ea3n ph\u1ea9m. Ch\u1ec9 s\u1ed1 \u0111\u1ed9 tin c\u1eady c\u1ee7a thi\u1ebft b\u1ecb c\u0169ng c\u00f3 th\u1ec3 thay \u0111\u1ed5i sau khi thay \u0111\u1ed5i quy tr\u00ecnh, thay \u0111\u1ed5i nh\u00e2n vi\u00ean v\u1eadn h\u00e0nh ho\u1eb7c th\u1eddi gian b\u1ea3o tr\u00ec b\u1ecb tr\u00ec ho\u00e3n, ngay c\u1ea3 khi b\u1ea3n th\u00e2n thi\u1ebft b\u1ecb kh\u00f4ng thay \u0111\u1ed5i. \u0110\u00f3 l\u00e0 l\u00fd do t\u1ea1i sao MTBF c\u1ea7n \u0111\u01b0\u1ee3c xem x\u00e9t l\u1ea1i c\u00f9ng v\u1edbi ng\u1eef c\u1ea3nh. m\u1ee9c \u0111\u1ed9 quan tr\u1ecdng c\u1ee7a t\u00e0i s\u1ea3n<\/strong>, chu k\u1ef3 l\u00e0m vi\u1ec7c<\/strong>, V\u00e0 l\u1ecbch s\u1eed b\u1ea3o tr\u00ec<\/strong> trong t\u00e2m tr\u00ed.<\/p>\n\n\n\n

C\u0169ng kh\u00f4ng c\u00f3 ti\u00eau chu\u1ea9n chung n\u00e0o cho MTBF "t\u1ed1t". Trong ng\u00e0nh \u0111\u00f3ng g\u00f3i t\u1ed1c \u0111\u1ed9 cao, MTBF 120 gi\u1edd c\u00f3 th\u1ec3 kh\u00f4ng th\u1ec3 ch\u1ea5p nh\u1eadn \u0111\u01b0\u1ee3c n\u1ebfu s\u1ef1 c\u1ed1 l\u00e0m ng\u1eebng to\u00e0n b\u1ed9 d\u00e2y chuy\u1ec1n s\u1ea3n xu\u1ea5t, trong khi \u1edf h\u1ec7 th\u1ed1ng h\u1ed7 tr\u1ee3 ti\u1ec7n \u00edch, con s\u1ed1 \u0111\u00f3 c\u00f3 th\u1ec3 ch\u1ea5p nh\u1eadn \u0111\u01b0\u1ee3c n\u1ebfu c\u00f3 t\u00ednh d\u1ef1 ph\u00f2ng. C\u00e1c nghi\u00ean c\u1ee9u trong ng\u00e0nh th\u01b0\u1eddng ch\u1ec9 ra r\u1eb1ng th\u1eddi gian ng\u1eebng ho\u1ea1t \u0111\u1ed9ng ngo\u00e0i k\u1ebf ho\u1ea1ch c\u00f3 th\u1ec3 khi\u1ebfn c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t thi\u1ec7t h\u1ea1i h\u00e0ng ngh\u00ecn \u0111\u00f4 la m\u1ed7i gi\u1edd, v\u00ec v\u1eady m\u1ee5c ti\u00eau \u0111\u00fang \u0111\u1eafn th\u01b0\u1eddng mang t\u00ednh kinh t\u1ebf c\u0169ng nh\u01b0 k\u1ef9 thu\u1eadt. Tr\u00ean th\u1ef1c t\u1ebf, b\u1ea1n n\u00ean so s\u00e1nh MTBF v\u1edbi xu h\u01b0\u1edbng l\u1ecbch s\u1eed c\u1ee7a ri\u00eang m\u00ecnh, c\u00e1c t\u00e0i s\u1ea3n t\u01b0\u01a1ng t\u1ef1 v\u00e0 t\u00e1c \u0111\u1ed9ng s\u1ea3n xu\u1ea5t c\u1ee7a m\u1ed7i s\u1ef1 c\u1ed1.<\/p>\n\n\n\n

<\/span>So s\u00e1nh MTBF v\u1edbi MTTR v\u00e0 MTTF<\/span><\/h3>\n\n\n\n

MTBF<\/strong> Cho b\u1ea1n bi\u1ebft thi\u1ebft b\u1ecb c\u00f3 th\u1ec3 s\u1eeda ch\u1eefa th\u01b0\u1eddng ho\u1ea1t \u0111\u1ed9ng \u0111\u01b0\u1ee3c bao l\u00e2u gi\u1eefa c\u00e1c l\u1ea7n h\u1ecfng h\u00f3c, trong khi MTTR<\/a><\/strong> Cho b\u1ea1n bi\u1ebft m\u1ea5t bao l\u00e2u \u0111\u1ec3 kh\u00f4i ph\u1ee5c thi\u1ebft b\u1ecb \u0111\u00f3 sau khi x\u1ea3y ra s\u1ef1 c\u1ed1. MTTF<\/strong>, Ng\u01b0\u1ee3c l\u1ea1i, MTBF \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho c\u00e1c m\u1eb7t h\u00e0ng kh\u00f4ng th\u1ec3 s\u1eeda ch\u1eefa v\u00e0 \u01b0\u1edbc t\u00ednh th\u1eddi gian h\u1ecfng h\u00f3c trong su\u1ed1t v\u00f2ng \u0111\u1eddi s\u1eed d\u1ee5ng c\u1ee7a linh ki\u1ec7n. N\u1ebfu ch\u1ec9 theo d\u00f5i t\u00ednh to\u00e1n MTBF, b\u1ea1n c\u00f3 th\u1ec3 k\u1ebft lu\u1eadn r\u1eb1ng m\u1ed9t t\u00e0i s\u1ea3n \u0111\u00e1ng tin c\u1eady ngay c\u1ea3 khi th\u1eddi gian ph\u1ee5c h\u1ed3i qu\u00e1 d\u00e0i \u0111\u1ebfn m\u1ee9c hi\u1ec7u su\u1ea5t s\u1ea3n xu\u1ea5t v\u1eabn b\u1ecb \u1ea3nh h\u01b0\u1edfng. Xem x\u00e9t c\u1ea3 ba y\u1ebfu t\u1ed1 c\u00f9ng nhau s\u1ebd cho c\u00e1i nh\u00ecn to\u00e0n di\u1ec7n h\u01a1n v\u1ec1 \u0111\u1ed9 tin c\u1eady, kh\u1ea3 n\u0103ng b\u1ea3o tr\u00ec v\u00e0 k\u1ebf ho\u1ea1ch thay th\u1ebf.<\/p>\n\n\n\n

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

V\u00ed d\u1ee5, m\u1ed9t m\u00e1y l\u1eafp r\u00e1p linh ki\u1ec7n \u0111i\u1ec7n t\u1eed c\u00f3 th\u1ec3 c\u00f3 MTBF (Th\u1eddi gian trung b\u00ecnh gi\u1eefa c\u00e1c l\u1ea7n h\u1ecfng h\u00f3c) kh\u00e1 t\u1ed1t, nh\u01b0ng n\u1ebfu m\u1ed7i l\u1ea7n h\u1ecfng h\u00f3c li\u00ean quan \u0111\u1ebfn b\u1ed9 c\u1ea5p li\u1ec7u m\u1ea5t 90 ph\u00fat \u0111\u1ec3 kh\u1eafc ph\u1ee5c, th\u00ec s\u1ea3n l\u01b0\u1ee3ng v\u1eabn c\u00f3 th\u1ec3 b\u1ecb gi\u1ea3m \u0111\u00e1ng k\u1ec3. M\u1eb7t kh\u00e1c, MTTR (Th\u1eddi gian trung b\u00ecnh \u0111\u1ec3 s\u1eeda ch\u1eefa) ng\u1eafn c\u00f3 th\u1ec3 b\u00f9 \u0111\u1eafp m\u1ed9t ph\u1ea7n cho MTBF th\u1ea5p h\u01a1n khi c\u00e1c l\u1ed7i nh\u1ecf, c\u00f3 th\u1ec3 d\u1ef1 \u0111o\u00e1n \u0111\u01b0\u1ee3c v\u00e0 nhanh ch\u00f3ng \u0111\u01b0\u1ee3c kh\u1eafc ph\u1ee5c. \u0110\u00f3 l\u00e0 l\u00fd do t\u1ea1i sao c\u00e1c \u0111\u00e1nh gi\u00e1 \u0111\u1ed9 tin c\u1eady kh\u00f4ng n\u00ean coi MTBF l\u00e0 m\u1ed9t ch\u1ec9 s\u1ed1 \u0111\u1ed9c l\u1eadp.<\/p>\n\n\n\n

<\/span>MTBF (Th\u1eddi gian trung b\u00ecnh gi\u1eefa c\u00e1c l\u1ea7n h\u1ecfng h\u00f3c) c\u00f3 th\u1ec3 cho b\u1ea1n bi\u1ebft g\u00ec v\u1ec1 hi\u1ec7u su\u1ea5t b\u1ea3o tr\u00ec<\/span><\/h3>\n\n\n\n

N\u1ebfu s\u1eed d\u1ee5ng \u0111\u00fang c\u00e1ch, MTBF<\/a><\/strong> MTBF (Th\u1eddi gian trung b\u00ecnh gi\u1eefa c\u00e1c l\u1ea7n h\u1ecfng h\u00f3c) l\u00e0 m\u1ed9t ch\u1ec9 s\u1ed1 quan tr\u1ecdng cho th\u1ea5y chi\u1ebfn l\u01b0\u1ee3c b\u1ea3o tr\u00ec c\u1ee7a b\u1ea1n c\u00f3 ng\u0103n ng\u1eeba \u0111\u01b0\u1ee3c s\u1ef1 c\u1ed1 t\u00e1i di\u1ec5n hay kh\u00f4ng. N\u1ebfu MTBF t\u0103ng l\u00ean sau khi r\u00fat ng\u1eafn kho\u1ea3ng th\u1eddi gian b\u00f4i tr\u01a1n ho\u1eb7c \u0111i\u1ec1u ch\u1ec9nh c\u00e1c \u0111i\u1ec3m ki\u1ec3m tra, \u0111i\u1ec1u \u0111\u00f3 cho th\u1ea5y c\u00e1c h\u00e0nh \u0111\u1ed9ng c\u1ee7a b\u1ea1n \u0111ang lo\u1ea1i b\u1ecf nguy\u00ean nh\u00e2n g\u00e2y h\u1ecfng h\u00f3c ch\u1ee9 kh\u00f4ng ch\u1ec9 ph\u1ea3n \u1ee9ng v\u1edbi c\u00e1c tri\u1ec7u ch\u1ee9ng. N\u1ebfu MTBF kh\u00f4ng thay \u0111\u1ed5i trong khi s\u1ed1 gi\u1edd b\u1ea3o tr\u00ec t\u0103ng l\u00ean, b\u1ea1n c\u00f3 th\u1ec3 \u0111ang t\u1ed1n nhi\u1ec1u c\u00f4ng s\u1ee9c h\u01a1n m\u00e0 kh\u00f4ng gi\u1ea3i quy\u1ebft \u0111\u01b0\u1ee3c nguy\u00ean nh\u00e2n g\u00e2y h\u1ecfng h\u00f3c th\u1ef1c s\u1ef1. Theo ngh\u0129a \u0111\u00f3, MTBF kh\u00f4ng ch\u1ec9 l\u00e0 k\u1ebft qu\u1ea3 c\u1ee7a m\u1ed9t c\u00f4ng th\u1ee9c; n\u00f3 l\u00e0 m\u1ed9t v\u00f2ng ph\u1ea3n h\u1ed3i v\u1ec1 hi\u1ec7u qu\u1ea3 b\u1ea3o tr\u00ec.<\/p>\n\n\n\n

N\u00f3 c\u0169ng h\u1eefu \u00edch \u1edf c\u1ea5p \u0111\u1ed9 xem x\u00e9t d\u00e2y chuy\u1ec1n s\u1ea3n xu\u1ea5t v\u00ec n\u00f3 k\u1ebft n\u1ed1i \u0111\u1ed9 tin c\u1eady k\u1ef9 thu\u1eadt v\u1edbi hi\u1ec7u su\u1ea5t v\u1eadn h\u00e0nh. M\u1ed9t d\u00e2y chuy\u1ec1n \u0111\u00f3ng g\u00f3i th\u1ef1c ph\u1ea9m c\u00f3 s\u1ea3n l\u01b0\u1ee3ng \u1ed5n \u0111\u1ecbnh nh\u01b0ng MTBF gi\u1ea3m c\u00f3 th\u1ec3 \u0111ang b\u00f9 \u0111\u1eafp b\u1eb1ng c\u00e1ch can thi\u1ec7p nhanh, l\u00e0m th\u00eam gi\u1edd ho\u1eb7c c\u00e1c gi\u1ea3i ph\u00e1p t\u1ea1m th\u1eddi c\u1ee7a ng\u01b0\u1eddi v\u1eadn h\u00e0nh, \u0111i\u1ec1u n\u00e0y kh\u00f4ng b\u1ec1n v\u1eefng. B\u1eb1ng c\u00e1ch ph\u00e1t hi\u1ec7n s\u1edbm xu h\u01b0\u1edbng \u0111\u00f3, b\u1ed9 ph\u1eadn b\u1ea3o tr\u00ec v\u00e0 s\u1ea3n xu\u1ea5t c\u00f3 th\u1ec3 xem x\u00e9t li\u1ec7u s\u1ef1 sai l\u1ec7ch c\u00e0i \u0111\u1eb7t, c\u00e1c b\u1ed9 ph\u1eadn hao m\u00f2n ho\u1eb7c quy tr\u00ecnh l\u00e0m s\u1ea1ch c\u00f3 ph\u1ea3i l\u00e0 nguy\u00ean nh\u00e2n g\u00e2y ra c\u00e1c s\u1ef1 c\u1ed1 l\u1eb7p \u0111i l\u1eb7p l\u1ea1i hay kh\u00f4ng. \u0110i\u1ec1u n\u00e0y l\u00e0m cho MTBF tr\u1edf th\u00e0nh c\u1ea7u n\u1ed1i thi\u1ebft th\u1ef1c gi\u1eefa d\u1eef li\u1ec7u m\u00e1y m\u00f3c v\u00e0 c\u00e1c quy\u1ebft \u0111\u1ecbnh v\u1eadn h\u00e0nh h\u00e0ng ng\u00e0y.<\/p>\n\n\n\n

<\/span>C\u00e1ch s\u1eed d\u1ee5ng MTBF trong chu k\u1ef3 l\u1eadp k\u1ebf ho\u1ea1ch v\u00e0 \u0111\u00e1nh gi\u00e1<\/span><\/h3>\n\n\n\n

MTBF n\u00ean th\u00f4ng b\u00e1o b\u1ea3o tr\u00ec ph\u00f2ng ng\u1eeba<\/strong> Vi\u1ec7c ki\u1ec3m tra c\u1ea7n t\u00ednh to\u00e1n th\u1eddi gian, nh\u01b0ng kh\u00f4ng n\u00ean \u00e1p \u0111\u1eb7t m\u1ed9t c\u00e1ch m\u00e1y m\u00f3c. N\u1ebfu th\u1eddi gian trung b\u00ecnh gi\u1eefa c\u00e1c l\u1ea7n h\u1ecfng h\u00f3c c\u1ee7a m\u1ed9t m\u00e1y b\u01a1m l\u00e0 1.800 gi\u1edd ho\u1ea1t \u0111\u1ed9ng, \u0111i\u1ec1u \u0111\u00f3 kh\u00f4ng c\u00f3 ngh\u0129a l\u00e0 b\u1ea1n ph\u1ea3i \u0111\u1ee3i \u0111\u1ebfn 1.799 gi\u1edd m\u1edbi ki\u1ec3m tra. Thay v\u00e0o \u0111\u00f3, b\u1ea1n s\u1eed d\u1ee5ng xu h\u01b0\u1edbng n\u00e0y c\u00f9ng v\u1edbi m\u1ee9c \u0111\u1ed9 nghi\u00eam tr\u1ecdng c\u1ee7a l\u1ed7i, \u0111i\u1ec1u ki\u1ec7n ho\u1ea1t \u0111\u1ed9ng v\u00e0 h\u01b0\u1edbng d\u1eabn c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t \u0111\u1ec3 quy\u1ebft \u0111\u1ecbnh xem vi\u1ec7c ki\u1ec3m tra, ki\u1ec3m tra t\u00ecnh tr\u1ea1ng ho\u1eb7c thay th\u1ebf linh ki\u1ec7n c\u00f3 n\u00ean \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n s\u1edbm h\u01a1n hay kh\u00f4ng. M\u1ee5c ti\u00eau l\u00e0 \u0111\u1ec3 ng\u0103n ng\u1eeba c\u00e1c s\u1ef1 c\u1ed1 c\u00f3 th\u1ec3 tr\u00e1nh \u0111\u01b0\u1ee3c, ch\u1ee9 kh\u00f4ng ch\u1ec9 \u0111\u01a1n thu\u1ea7n l\u00e0 ph\u1ea3n \u1ee9ng v\u1edbi m\u1ee9c trung b\u00ecnh.<\/p>\n\n\n\n

Nguy\u00ean t\u1eafc t\u01b0\u01a1ng t\u1ef1 c\u0169ng \u00e1p d\u1ee5ng cho vi\u1ec7c l\u1eadp k\u1ebf ho\u1ea1ch ph\u1ee5 t\u00f9ng thay th\u1ebf. C\u00e1c t\u00e0i s\u1ea3n c\u00f3 MTBF th\u1ea5p v\u00e0 th\u1eddi gian ch\u1edd b\u1ed5 sung d\u00e0i c\u1ea7n ch\u00ednh s\u00e1ch d\u1ef1 tr\u1eef ch\u1eb7t ch\u1ebd h\u01a1n so v\u1edbi c\u00e1c t\u00e0i s\u1ea3n \u00edt h\u1ecfng h\u00f3c v\u00e0 c\u00f3 ngu\u1ed3n cung c\u1ea5p nhanh ch\u00f3ng t\u1ea1i \u0111\u1ecba ph\u01b0\u01a1ng. Trong c\u00e1c cu\u1ed9c \u0111\u00e1nh gi\u00e1 hi\u1ec7u su\u1ea5t h\u00e0ng th\u00e1ng, nhi\u1ec1u nh\u00e0 m\u00e1y thu \u0111\u01b0\u1ee3c nhi\u1ec1u gi\u00e1 tr\u1ecb h\u01a1n b\u1eb1ng c\u00e1ch k\u1ebft h\u1ee3p MTBF v\u1edbi s\u1ed1 ph\u00fat ng\u1eebng ho\u1ea1t \u0111\u1ed9ng, MTTR v\u00e0 c\u00e1c m\u00e3 l\u1ed7i h\u00e0ng \u0111\u1ea7u h\u01a1n l\u00e0 ch\u1ec9 theo d\u00f5i con s\u1ed1 n\u00e0y. C\u00e1ch ti\u1ebfp c\u1eadn \u0111\u00f3 gi\u00fap vi\u1ec7c theo d\u00f5i l\u1ed7i m\u00e1y m\u00f3c g\u1eafn li\u1ec1n v\u1edbi c\u00e1c quy\u1ebft \u0111\u1ecbnh v\u1ec1 kho\u1ea3ng th\u1eddi gian b\u1ea3o tr\u00ec, ph\u1ee5 t\u00f9ng thay th\u1ebf quan tr\u1ecdng v\u00e0 c\u00e1c h\u00e0nh \u0111\u1ed9ng \u01b0u ti\u00ean tr\u00ean d\u00e2y chuy\u1ec1n s\u1ea3n xu\u1ea5t, thay v\u00ec bi\u1ebfn MTBF th\u00e0nh m\u1ed9t ch\u1ec9 s\u1ed1 th\u1ee5 \u0111\u1ed9ng tr\u00ean b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n.<\/p>\n\n\n\n

<\/span>L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 c\u1ea3i thi\u1ec7n MTBF (Th\u1eddi gian gi\u1eefa c\u00e1c l\u1ea7n h\u1ecfng h\u00f3c) b\u1eb1ng c\u00e1ch theo d\u00f5i l\u1ed7i t\u1ed1t h\u01a1n v\u00e0 b\u1ea3o tr\u00ec ph\u00f2ng ng\u1eeba<\/span><\/h2>\n\n\n\n

C\u1ea3i thi\u1ec7n MTBF<\/strong><\/a> M\u1ecdi chuy\u1ec7n b\u1eaft \u0111\u1ea7u t\u1eeb vi\u1ec7c c\u1ea3i thi\u1ec7n d\u1eef li\u1ec7u \u0111\u1ea7u v\u00e0o, ch\u1ee9 kh\u00f4ng ph\u1ea3i ch\u1ec9 \u0111\u01a1n gi\u1ea3n l\u00e0 c\u1ea3i thi\u1ec7n b\u1ea3ng t\u00ednh. T\u1ea1i nhi\u1ec1u nh\u00e0 m\u00e1y, th\u1eddi gian trung b\u00ecnh gi\u1eefa c\u00e1c l\u1ea7n h\u1ecfng h\u00f3c (MTBF) c\u00f3 v\u1ebb t\u1ec7 h\u01a1n ho\u1eb7c t\u1ed1t h\u01a1n so v\u1edbi th\u1ef1c t\u1ebf v\u00ec h\u1ed3 s\u01a1 s\u1ef1 c\u1ed1 kh\u00f4ng \u0111\u1ea7y \u0111\u1ee7, m\u00e3 l\u1ed7i kh\u00f4ng nh\u1ea5t qu\u00e1n, ho\u1eb7c ng\u01b0\u1eddi v\u1eadn h\u00e0nh v\u00e0 k\u1ef9 thu\u1eadt vi\u00ean ghi nh\u1eadn c\u00f9ng m\u1ed9t s\u1ef1 ki\u1ec7n theo c\u00e1ch kh\u00e1c nhau. N\u1ebfu ph\u00e9p t\u00ednh MTBF c\u1ee7a b\u1ea1n d\u1ef1a tr\u00ean d\u1eef li\u1ec7u s\u1ef1 ki\u1ec7n y\u1ebfu, con s\u1ed1 \u0111\u00f3 s\u1ebd tr\u1edf th\u00e0nh m\u1ed9t \u01b0\u1edbc t\u00ednh s\u01a1 b\u1ed9 ch\u1ee9 kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t ch\u1ec9 s\u1ed1 \u0111\u00e1ng tin c\u1eady v\u1ec1 \u0111\u1ed9 tin c\u1eady c\u1ee7a thi\u1ebft b\u1ecb. \u0110\u00f3 l\u00e0 l\u00fd do t\u1ea1i sao vi\u1ec7c theo d\u00f5i s\u1ef1 c\u1ed1 m\u00e1y m\u00f3c v\u00e0 b\u1ea3o tr\u00ec ph\u00f2ng ng\u1eeba c\u1ea7n ph\u1ea3i \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n \u0111\u1ed3ng th\u1eddi.<\/p>\n\n\n\n

<\/span>V\u00ec sao d\u1eef li\u1ec7u MTBF th\u01b0\u1eddng kh\u00f4ng ch\u00ednh x\u00e1c trong th\u1ef1c t\u1ebf?<\/span><\/h3>\n\n\n\n

M\u1ed9t v\u1ea5n \u0111\u1ec1 th\u01b0\u1eddng g\u1eb7p l\u00e0 c\u00e1c \u0111\u1ed9i kh\u00f4ng s\u1eed d\u1ee5ng m\u1ed9t h\u1ec7 th\u1ed1ng duy nh\u1ea5t. \u0111\u1ecbnh ngh\u0129a r\u00f5 r\u00e0ng<\/strong> S\u1ef1 c\u1ed1 x\u1ea3y ra r\u1ea3i r\u00e1c gi\u1eefa c\u00e1c ca l\u00e0m vi\u1ec7c. V\u00ed d\u1ee5, tr\u00ean d\u00e2y chuy\u1ec1n \u0111\u00f3ng g\u00f3i, m\u1ed9t c\u00f4ng nh\u00e2n c\u00f3 th\u1ec3 ghi nh\u1eadn s\u1ef1 c\u1ed1 k\u1eb9t m\u00e0ng phim l\u00e0 m\u1ed9t s\u1ef1 c\u1ed1 nh\u1ecf trong khi ng\u01b0\u1eddi kh\u00e1c l\u1ea1i ghi nh\u1eadn l\u00e0 s\u1ef1 c\u1ed1 nghi\u00eam tr\u1ecdng, ngay c\u1ea3 khi c\u1ea3 hai s\u1ef1 ki\u1ec7n \u0111\u1ec1u l\u00e0m gi\u00e1n \u0111o\u1ea1n s\u1ea3n xu\u1ea5t trong 15 ph\u00fat. S\u1ef1 kh\u00f4ng nh\u1ea5t qu\u00e1n \u0111\u00f3 l\u00e0m sai l\u1ec7ch th\u1eddi gian trung b\u00ecnh gi\u1eefa c\u00e1c l\u1ea7n h\u1ecfng h\u00f3c, \u0111\u1eb7c bi\u1ec7t l\u00e0 tr\u00ean c\u00e1c thi\u1ebft b\u1ecb th\u01b0\u1eddng xuy\u00ean d\u1eebng ho\u1ea1t \u0111\u1ed9ng trong th\u1eddi gian ng\u1eafn. Trong h\u01a1n m\u1ed9t th\u00e1ng, nh\u1eefng l\u1ed7i ph\u00e2n lo\u1ea1i nh\u1ecf c\u00f3 th\u1ec3 l\u00e0m thay \u0111\u1ed5i k\u1ebft qu\u1ea3 c\u00f4ng th\u1ee9c MTBF \u0111\u1ee7 \u0111\u1ec3 khi\u1ebfn c\u00e1c \u0111\u1ed9i b\u1ea3o tr\u00ec \u01b0u ti\u00ean sai h\u01b0\u1edbng.<\/p>\n\n\n\n

V\u1ea5n \u0111\u1ec1 th\u1ee9 hai l\u00e0 l\u01b0u tr\u1eef h\u1ed3 s\u01a1 r\u1eddi r\u1ea1c<\/strong>. Trong c\u00e1c ho\u1ea1t \u0111\u1ed9ng s\u1ea3n xu\u1ea5t v\u00e0 \u0111\u00f3ng g\u00f3i, l\u1ecbch s\u1eed s\u1ef1 c\u1ed1 th\u01b0\u1eddng b\u1ecb ph\u00e2n t\u00e1n \u1edf nhi\u1ec1u n\u01a1i kh\u00e1c nhau, nh\u01b0 s\u1ed5 ghi ch\u00e9p tr\u00ean gi\u1ea5y, b\u1ea3ng t\u00ednh b\u1ea3o tr\u00ec, tin nh\u1eafn WhatsApp v\u00e0 ghi ch\u00fa ERP. Khi h\u1ed3 s\u01a1 n\u1eb1m r\u1ea3i r\u00e1c \u1edf nhi\u1ec1u n\u01a1i, ng\u01b0\u1eddi l\u1eadp k\u1ebf ho\u1ea1ch kh\u00f4ng th\u1ec3 k\u1ebft n\u1ed1i m\u1ed9t c\u00e1ch \u0111\u00e1ng tin c\u1eady c\u00e1c s\u1ef1 c\u1ed1 v\u1edbi nguy\u00ean nh\u00e2n g\u1ed1c r\u1ec5, c\u00e1c b\u1ed9 ph\u1eadn \u0111\u01b0\u1ee3c thay th\u1ebf ho\u1eb7c c\u00e1c cu\u1ed9c ki\u1ec3m tra qu\u00e1 h\u1ea1n. K\u1ebft qu\u1ea3 l\u00e0, ph\u00e9p t\u00ednh MTBF ch\u1ec9 cho th\u1ea5y c\u00e1c tri\u1ec7u ch\u1ee9ng ch\u1ee9 kh\u00f4ng ch\u1ec9 ra c\u00e1c h\u00e0nh \u0111\u1ed9ng b\u1ea3o tr\u00ec c\u1ea7n thi\u1ebft \u0111\u1ec3 c\u1ea3i thi\u1ec7n t\u00ecnh tr\u1ea1ng \u0111\u00f3.<\/p>\n\n\n\n

<\/span>X\u00e2y d\u1ef1ng m\u1ed9t ng\u00f4n ng\u1eef th\u1ed1ng nh\u1ea5t v\u1ec1 vi\u1ec7c x\u1eed l\u00fd l\u1ed7i tr\u00ean to\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng.<\/span><\/h3>\n\n\n\n

\u0110\u1ec3 c\u1ea3i thi\u1ec7n MTBF (Th\u1eddi gian trung b\u00ecnh gi\u1eefa c\u00e1c l\u1ea7n h\u1ecfng h\u00f3c), h\u00e3y b\u1eaft \u0111\u1ea7u b\u1eb1ng c\u00e1ch chu\u1ea9n h\u00f3a nh\u1eefng th\u00f4ng tin \u0111\u01b0\u1ee3c ghi l\u1ea1i m\u1ed7i khi x\u1ea3y ra s\u1ef1 c\u1ed1. T\u1ed1i thi\u1ec3u, m\u1ed7i s\u1ef1 ki\u1ec7n c\u1ea7n ghi l\u1ea1i m\u00e3 \u0111\u1ecbnh danh t\u00e0i s\u1ea3n, th\u1eddi gian b\u1eaft \u0111\u1ea7u h\u1ecfng h\u00f3c, th\u1eddi gian kh\u1eafc ph\u1ee5c, tri\u1ec7u ch\u1ee9ng, ki\u1ec3u h\u1ecfng h\u00f3c, nguy\u00ean nh\u00e2n nghi ng\u1edd, h\u00e0nh \u0111\u1ed9ng \u0111\u00e3 th\u1ef1c hi\u1ec7n v\u00e0 li\u1ec7u s\u1ef1 ki\u1ec7n \u0111\u00f3 c\u00f3 g\u00e2y ra d\u1eebng s\u1ea3n xu\u1ea5t to\u00e0n b\u1ed9 hay m\u1ed9t ph\u1ea7n hay kh\u00f4ng. \u0110i\u1ec1u n\u00e0y cung c\u1ea5p cho b\u1ea1n d\u1eef li\u1ec7u h\u1eefu \u00edch cho c\u1ea3 ph\u00e2n t\u00edch \u0111\u1ed9 tin c\u1eady v\u00e0 l\u1eadp k\u1ebf ho\u1ea1ch b\u1ea3o tr\u00ec ph\u00f2ng ng\u1eeba. N\u00f3 c\u0169ng gi\u00fap hi\u1ec3n th\u1ecb xu h\u01b0\u1edbng h\u1ecfng h\u00f3c \u1edf c\u1ea5p \u0111\u1ed9 linh ki\u1ec7n thay v\u00ec che gi\u1ea5u m\u1ecdi th\u1ee9 d\u01b0\u1edbi c\u00e1c nh\u00e3n chung chung nh\u01b0 "s\u1ef1 c\u1ed1 m\u00e1y m\u00f3c".\u201c<\/p>\n\n\n\n

M\u1ed9t c\u00e1ch l\u00e0m t\u1ed1t l\u00e0 t\u1ea1o ra m\u1ed9t \u0111o\u1ea1n v\u0103n ng\u1eafn, c\u00f3 ki\u1ec3m so\u00e1t. danh s\u00e1ch c\u00e1c ch\u1ebf \u0111\u1ed9 l\u1ed7i<\/strong> \u0110\u1ed1i v\u1edbi m\u1ed7i nh\u00f3m t\u00e0i s\u1ea3n quan tr\u1ecdng. Tr\u00ean d\u00e2y chuy\u1ec1n \u0111\u00f3ng g\u00f3i v\u00e0 ni\u00eam phong t\u00fai, \u0111i\u1ec1u \u0111\u00f3 c\u00f3 th\u1ec3 bao g\u1ed3m l\u1ed7i nhi\u1ec7t \u0111\u1ed9 h\u00e0m ni\u00eam phong, l\u1ed7i theo d\u00f5i m\u00e0ng, nhi\u1ec5m b\u1ea9n c\u1ea3m bi\u1ebfn, m\u1ea5t \u00e1p su\u1ea5t kh\u00ed n\u00e9n v\u00e0 qu\u00e1 t\u1ea3i \u0111\u1ed9ng c\u01a1 b\u0103ng t\u1ea3i. Khi k\u1ef9 thu\u1eadt vi\u00ean v\u00e0 ng\u01b0\u1eddi v\u1eadn h\u00e0nh c\u00f9ng l\u1ef1a ch\u1ecdn t\u1eeb m\u1ed9t danh s\u00e1ch, c\u00e1c l\u1ed7i l\u1eb7p l\u1ea1i s\u1ebd d\u1ec5 ph\u00e1t hi\u1ec7n v\u00e0 so s\u00e1nh h\u01a1n gi\u1eefa c\u00e1c ca l\u00e0m vi\u1ec7c. \u0110\u00f3 l\u00e0 l\u00fac MTBF b\u1eaft \u0111\u1ea7u tr\u1edf n\u00ean c\u00f3 th\u1ec3 h\u00e0nh \u0111\u1ed9ng \u0111\u01b0\u1ee3c thay v\u00ec ch\u1ec9 l\u00e0 b\u00e1o c\u00e1o.<\/p>\n\n\n\n

<\/span>T\u0103ng c\u01b0\u1eddng quy tr\u00ecnh ki\u1ec3m tra tr\u01b0\u1edbc khi s\u1ef1 c\u1ed1 t\u00e1i di\u1ec5n.<\/span><\/h3>\n\n\n\n

Quy tr\u00ecnh ki\u1ec3m tra t\u1ed1t h\u01a1n<\/strong> c\u1ea3i thi\u1ec7n MTBF<\/a><\/strong> Khi c\u00e1c bi\u1ec7n ph\u00e1p ki\u1ec3m tra \u0111\u01b0\u1ee3c nh\u1eafm m\u1ee5c ti\u00eau v\u00e0o c\u00e1c m\u00f4 h\u00ecnh l\u1ed7i \u0111\u00e3 bi\u1ebft, ch\u1ee9 kh\u00f4ng ch\u1ec9 l\u00e0 c\u00e1c nhi\u1ec7m v\u1ee5 theo l\u1ecbch tr\u00ecnh. N\u1ebfu d\u00e2y chuy\u1ec1n \u0111\u00f3ng g\u00f3i c\u00f3 hi\u1ec7n t\u01b0\u1ee3ng nhi\u1ec5m b\u1ea9n c\u1ea3m bi\u1ebfn quang \u0111i\u1ec7n l\u1eb7p \u0111i l\u1eb7p l\u1ea1i sau m\u1ed7i 9 \u0111\u1ebfn 12 ng\u00e0y, bi\u1ec7n ph\u00e1p kh\u1eafc ph\u1ee5c \u0111\u00fang \u0111\u1eafn c\u00f3 th\u1ec3 l\u00e0 ki\u1ec3m tra v\u1ec7 sinh nhanh ch\u00f3ng h\u00e0ng ng\u00e0y v\u00e0 x\u00e1c minh c\u0103n ch\u1ec9nh h\u00e0ng tu\u1ea7n thay v\u00ec ch\u1edd \u0111\u1ebfn \u0111i\u1ec3m d\u1eebng ti\u1ebfp theo. C\u00e1c ki\u1ec3m tra ng\u1eafn g\u1ecdn, t\u1eadp trung th\u01b0\u1eddng lo\u1ea1i b\u1ecf c\u00e1c nguy\u00ean nh\u00e2n g\u00e2y h\u1ecfng h\u00f3c c\u00f3 th\u1ec3 tr\u00e1nh \u0111\u01b0\u1ee3c v\u1edbi chi ph\u00ed th\u1ea5p h\u01a1n nhi\u1ec1u so v\u1edbi s\u1eeda ch\u1eefa ph\u1ea3n \u1ee9ng. T\u1ea1i nhi\u1ec1u nh\u00e0 m\u00e1y, c\u00e1c bi\u1ec7n ph\u00e1p ki\u1ec3m so\u00e1t \u0111\u1ecbnh k\u1ef3 nh\u1ecf n\u00e0y mang l\u1ea1i l\u1ee3i \u00edch v\u1ec1 MTBF nhanh h\u01a1n so v\u1edbi vi\u1ec7c \u0111\u1ea1i tu thi\u1ebft b\u1ecb l\u1edbn.<\/p>\n\n\n\n

Ch\u1ea5t l\u01b0\u1ee3ng ki\u1ec3m tra c\u0169ng quan tr\u1ecdng kh\u00f4ng k\u00e9m t\u1ea7n su\u1ea5t ki\u1ec3m tra. N\u1ebfu k\u1ef9 thu\u1eadt vi\u00ean kh\u00f4ng th\u1ec3 ghi l\u1ea1i m\u1ed9t c\u00e1ch c\u00f3 h\u1ec7 th\u1ed1ng c\u00e1c hi\u1ec7n t\u01b0\u1ee3ng b\u1ea5t th\u01b0\u1eddng nh\u01b0 nhi\u1ec7t \u0111\u1ed9, \u0111\u1ed9 rung, \u00f4 nhi\u1ec5m, hao m\u00f2n ho\u1eb7c \u0111\u1ed9 l\u1ecfng l\u1ebbo, th\u00ec ch\u01b0\u01a1ng tr\u00ecnh b\u1ea3o tr\u00ec ph\u00f2ng ng\u1eeba s\u1ebd mang t\u00ednh ch\u1ee7 quan. C\u00e1c ti\u00eau ch\u00ed ki\u1ec3m tra ti\u00eau chu\u1ea9n, ch\u1ee5p \u1ea3nh v\u00e0 ng\u01b0\u1ee1ng \u0111\u1ea1t\/kh\u00f4ng \u0111\u1ea1t gi\u00fap c\u00e1c nh\u00f3m ph\u00e1t hi\u1ec7n s\u1ef1 xu\u1ed1ng c\u1ea5p tr\u01b0\u1edbc khi n\u00f3 tr\u1edf th\u00e0nh l\u1ed7i \u0111\u01b0\u1ee3c ghi nh\u1eadn. \u0110i\u1ec1u \u0111\u00f3 gi\u00fap vi\u1ec7c theo d\u00f5i l\u1ed7i m\u00e1y m\u00f3c c\u1ee7a b\u1ea1n mang t\u00ednh d\u1ef1 \u0111o\u00e1n cao h\u01a1n v\u00e0 xu h\u01b0\u1edbng MTBF (Th\u1eddi gian trung b\u00ecnh gi\u1eefa c\u00e1c l\u1ea7n h\u1ecfng h\u00f3c) \u1ed5n \u0111\u1ecbnh h\u01a1n theo th\u1eddi gian.<\/p>\n\n\n\n

<\/span>Bi\u1ebfn l\u1ecbch s\u1eed th\u1ea5t b\u1ea1i th\u00e0nh h\u00e0nh \u0111\u1ed9ng ph\u00f2ng ng\u1eeba<\/span><\/h3>\n\n\n\n

H\u00e3y xem x\u00e9t m\u1ed9t d\u00e2y chuy\u1ec1n \u0111\u00f3ng g\u00f3i ho\u1ea1t \u0111\u1ed9ng 720 gi\u1edd trong m\u1ed9t th\u00e1ng v\u00e0 ghi nh\u1eadn 8 s\u1ef1 c\u1ed1, cho ra k\u1ebft qu\u1ea3 t\u00ednh to\u00e1n MTBF l\u00e0 90 gi\u1edd. Sau khi nh\u00f3m b\u1ea3o tr\u00ec xem x\u00e9t l\u1ea1i nh\u1eadt k\u00fd s\u1ef1 ki\u1ec7n, h\u1ecd ph\u00e1t hi\u1ec7n ra r\u1eb1ng 5 trong s\u1ed1 8 s\u1ef1 c\u1ed1 \u0111\u1ebfn t\u1eeb ch\u1ec9 hai nguy\u00ean nh\u00e2n l\u1eb7p \u0111i l\u1eb7p l\u1ea1i: c\u1ea3m bi\u1ebfn b\u1ecb b\u1ea9n g\u1ea7n b\u1ed9 ph\u1eadn c\u1ea5p li\u1ec7u v\u00e0 \u00e1p su\u1ea5t kh\u00f4ng kh\u00ed kh\u00f4ng \u1ed5n \u0111\u1ecbnh \u0111\u1ebfn b\u1ed9 ph\u1eadn ni\u00eam phong. N\u1ebfu kh\u00f4ng c\u00f3 th\u00f4ng tin chi ti\u1ebft \u0111\u00f3, d\u00e2y chuy\u1ec1n tr\u00f4ng c\u00f3 v\u1ebb kh\u00f4ng \u0111\u00e1ng tin c\u1eady. V\u1edbi th\u00f4ng tin n\u00e0y, nh\u00f3m c\u00f3 th\u1ec3 thi\u1ebft k\u1ebf l\u1ea1i k\u1ebf ho\u1ea1ch b\u1ea3o tr\u00ec ph\u00f2ng ng\u1eeba d\u1ef1a tr\u00ean c\u00e1c \u0111i\u1ec3m g\u00e2y ra s\u1ef1 c\u1ed1 th\u1ef1c t\u1ebf.<\/p>\n\n\n\n

Quy tr\u00ecnh l\u00e0m vi\u1ec7c c\u1ea7n \u0111\u01a1n gi\u1ea3n: ghi nh\u1eadn t\u1eebng s\u1ef1 c\u1ed1 trong th\u1eddi gian th\u1ef1c, xem x\u00e9t v\u00e0 m\u00e3 h\u00f3a ch\u00fang m\u1ed9t c\u00e1ch nh\u1ea5t qu\u00e1n, nh\u00f3m c\u00e1c s\u1ef1 ki\u1ec7n l\u1eb7p l\u1ea1i theo ch\u1ebf \u0111\u1ed9 v\u00e0 nguy\u00ean nh\u00e2n, x\u1ebfp h\u1ea1ng ch\u00fang theo m\u1ee9c \u0111\u1ed9 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn th\u1eddi gian ng\u1eebng ho\u1ea1t \u0111\u1ed9ng v\u00e0 t\u1ea7n su\u1ea5t, sau \u0111\u00f3 ch\u1ec9 \u0111\u1ecbnh c\u00e1c h\u00e0nh \u0111\u1ed9ng ph\u00f2ng ng\u1eeba v\u1edbi ng\u01b0\u1eddi ch\u1ecbu tr\u00e1ch nhi\u1ec7m v\u00e0 th\u1eddi h\u1ea1n ho\u00e0n th\u00e0nh. Tr\u00ean c\u00f9ng m\u1ed9t d\u00e2y chuy\u1ec1n \u0111\u00f3ng g\u00f3i, \u0111i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 bao g\u1ed3m vi\u1ec7c th\u00eam nhi\u1ec7m v\u1ee5 l\u00e0m s\u1ea1ch c\u1ea3m bi\u1ebfn m\u1ed7i ca, l\u1eafp \u0111\u1eb7t b\u1ed9 ki\u1ec3m tra \u00e1p su\u1ea5t kh\u00f4ng kh\u00ed khi kh\u1edfi \u0111\u1ed9ng v\u00e0 thay th\u1ebf b\u1ed9 \u0111i\u1ec1u ch\u1ec9nh chi ph\u00ed th\u1ea5p tr\u01b0\u1edbc khi n\u00f3 h\u1ecfng l\u1ea7n n\u1eefa. Trong v\u00f2ng hai ho\u1eb7c ba chu k\u1ef3 b\u00e1o c\u00e1o, b\u1ea1n c\u00f3 th\u1ec3 th\u1ea5y li\u1ec7u nh\u1eefng h\u00e0nh \u0111\u1ed9ng \u0111\u00f3 c\u00f3 gi\u00fap c\u1ea3i thi\u1ec7n th\u1eddi gian trung b\u00ecnh gi\u1eefa c\u00e1c l\u1ea7n h\u1ecfng h\u00f3c theo h\u01b0\u1edbng t\u00edch c\u1ef1c hay kh\u00f4ng.<\/p>\n\n\n\n

\"S\u01a1<\/figure>\n\n\n\n

<\/span>H\u00e3y t\u1eadp trung v\u00e0o c\u00e1c nguy\u00ean nh\u00e2n c\u00f3 th\u1ec3 l\u1eb7p l\u1ea1i, ch\u1ee9 kh\u00f4ng ph\u1ea3i c\u00e1c s\u1ef1 ki\u1ec7n \u0111\u01a1n l\u1ebb.<\/span><\/h3>\n\n\n\n

Kh\u00f4ng ph\u1ea3i m\u1ecdi s\u1ef1 c\u1ed1 \u0111\u1ec1u c\u1ea7n c\u00f9ng m\u1ed9t bi\u1ec7n ph\u00e1p x\u1eed l\u00fd. M\u1ed9t l\u1ea7n \u0111\u1ed9ng c\u01a1 b\u1ecb ng\u1eaft sau s\u1ef1 c\u1ed1 m\u1ea5t \u0111i\u1ec7n kh\u00f4ng n\u00ean d\u1eabn \u0111\u1ebfn quy\u1ebft \u0111\u1ecbnh b\u1ea3o tr\u00ec ph\u00f2ng ng\u1eeba gi\u1ed1ng nh\u01b0 c\u1ea3nh b\u00e1o nhi\u1ec7t \u0111\u1ed9 gio\u0103ng l\u1eb7p \u0111i l\u1eb7p l\u1ea1i m\u1ed7i tu\u1ea7n. C\u00e1c ch\u01b0\u01a1ng tr\u00ecnh c\u1ea3i thi\u1ec7n MTBF hi\u1ec7u qu\u1ea3 nh\u1ea5t l\u00e0 ph\u00e2n bi\u1ec7t c\u00e1c s\u1ef1 c\u1ed1 ri\u00eang l\u1ebb v\u1edbi c\u00e1c ch\u1ebf \u0111\u1ed9 h\u1ecfng h\u00f3c l\u1eb7p \u0111i l\u1eb7p l\u1ea1i, sau \u0111\u00f3 t\u1eadp trung k\u1ebf ho\u1ea1ch nh\u00e2n l\u1ef1c v\u00e0 ph\u1ee5 t\u00f9ng thay th\u1ebf v\u00e0o c\u00e1c nguy\u00ean nh\u00e2n g\u00e2y h\u1ecfng h\u00f3c th\u01b0\u1eddng xuy\u00ean. \u0110i\u1ec1u n\u00e0y gi\u00fap c\u00e1c \u0111\u1ed9i b\u1ea3o tr\u00ec kh\u00f4ng ph\u1ea3i d\u00e0nh qu\u00e1 nhi\u1ec1u th\u1eddi gian \u0111\u1ec3 ph\u1ea3n \u1ee9ng v\u1edbi nh\u1eefng nhi\u1ec5u lo\u1ea1n trong d\u1eef li\u1ec7u.<\/p>\n\n\n\n

Chu k\u1ef3 \u0111\u00e1nh gi\u00e1 h\u1eefu \u00edch l\u00e0 h\u00e0ng tu\u1ea7n \u0111\u1ed1i v\u1edbi c\u00e1c t\u00e0i s\u1ea3n quan tr\u1ecdng v\u00e0 h\u00e0ng th\u00e1ng \u0111\u1ed1i v\u1edbi hi\u1ec7u su\u1ea5t t\u1ed5ng th\u1ec3 c\u1ee7a d\u00e2y chuy\u1ec1n s\u1ea3n xu\u1ea5t. Trong \u0111\u00e1nh gi\u00e1 h\u00e0ng tu\u1ea7n, ng\u01b0\u1eddi gi\u00e1m s\u00e1t c\u00f3 th\u1ec3 ki\u1ec3m tra xem c\u00e1c l\u1ed7i l\u1eb7p l\u1ea1i c\u00f3 \u0111ang gia t\u0103ng hay kh\u00f4ng, li\u1ec7u c\u00e1c cu\u1ed9c ki\u1ec3m tra c\u00f3 \u0111\u01b0\u1ee3c ho\u00e0n th\u00e0nh \u0111\u00fang th\u1eddi h\u1ea1n hay kh\u00f4ng v\u00e0 li\u1ec7u c\u00e1c h\u00e0nh \u0111\u1ed9ng b\u1ea3o tr\u00ec g\u1ea7n \u0111\u00e2y c\u00f3 th\u1ef1c s\u1ef1 l\u00e0m gi\u1ea3m t\u1ef7 l\u1ec7 t\u00e1i di\u1ec5n hay kh\u00f4ng. Trong \u0111\u00e1nh gi\u00e1 h\u00e0ng th\u00e1ng, ng\u01b0\u1eddi qu\u1ea3n l\u00fd c\u00f3 th\u1ec3 so s\u00e1nh xu h\u01b0\u1edbng MTBF (Th\u1eddi gian trung b\u00ecnh gi\u1eefa c\u00e1c l\u1ea7n h\u1ecfng h\u00f3c) v\u1edbi t\u1ea3i tr\u1ecdng s\u1ea3n xu\u1ea5t, c\u01b0\u1eddng \u0111\u1ed9 chuy\u1ec3n \u0111\u1ed5i v\u00e0 vi\u1ec7c tu\u00e2n th\u1ee7 b\u1ea3o tr\u00ec. \u0110i\u1ec1u n\u00e0y gi\u00fap ch\u1ec9 s\u1ed1 \u0111\u1ed9 tin c\u1eady c\u1ee7a thi\u1ebft b\u1ecb g\u1eafn li\u1ec1n v\u1edbi th\u1ef1c t\u1ebf ho\u1ea1t \u0111\u1ed9ng thay v\u00ec coi n\u00f3 nh\u01b0 m\u1ed9t KPI ri\u00eang l\u1ebb.<\/p>\n\n\n\n

<\/span>K\u1ebft lu\u1eadn: Bi\u1ebfn d\u1eef li\u1ec7u MTBF th\u00e0nh h\u00e0nh \u0111\u1ed9ng th\u1ef1c ti\u1ec5n v\u1edbi Jodoo<\/a><\/span><\/h2>\n\n\n\n

MTBF<\/a> <\/strong>Ch\u1ec9 s\u1ed1 n\u00e0y ch\u1ec9 tr\u1edf n\u00ean c\u00f3 gi\u00e1 tr\u1ecb khi nh\u00f3m c\u1ee7a b\u1ea1n s\u1eed d\u1ee5ng n\u00f3 nh\u01b0 m\u1ed9t c\u00f4ng c\u1ee5 v\u1eadn h\u00e0nh, ch\u1ee9 kh\u00f4ng ch\u1ec9 l\u00e0 m\u1ed9t ch\u1ec9 s\u1ed1 b\u00e1o c\u00e1o. N\u1ebfu d\u1eef li\u1ec7u v\u1ec1 s\u1ef1 c\u1ed1 kh\u00f4ng \u0111\u1ea7y \u0111\u1ee7, c\u00e1c danh m\u1ee5c th\u1eddi gian ng\u1eebng ho\u1ea1t \u0111\u1ed9ng kh\u00f4ng nh\u1ea5t qu\u00e1n, ho\u1eb7c c\u00e1c ph\u00e9p t\u00ednh n\u1eb1m trong c\u00e1c b\u1ea3ng t\u00ednh ri\u00eang bi\u1ec7t, ngay c\u1ea3 m\u1ed9t ch\u1ec9 s\u1ed1 KPI n\u1ed5i ti\u1ebfng nh\u01b0 th\u1eddi gian trung b\u00ecnh gi\u1eefa c\u00e1c l\u1ea7n h\u1ecfng h\u00f3c c\u0169ng c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn c\u00e1c quy\u1ebft \u0111\u1ecbnh b\u1ea3o tr\u00ec kh\u00f4ng hi\u1ec7u qu\u1ea3. M\u1ee5c ti\u00eau th\u1ef1c s\u1ef1 r\u1ea5t \u0111\u01a1n gi\u1ea3n: ghi nh\u1eadn ch\u00ednh x\u00e1c c\u00e1c s\u1ef1 ki\u1ec7n h\u1ecfng h\u00f3c, t\u00ednh to\u00e1n MTBF m\u1ed9t c\u00e1ch nh\u1ea5t qu\u00e1n v\u00e0 h\u00e0nh \u0111\u1ed9ng \u0111\u1ee7 s\u1edbm \u0111\u1ec3 ng\u0103n ng\u1eeba s\u1ef1 c\u1ed1 l\u1eb7p l\u1ea1i, th\u1eddi gian s\u1ea3n xu\u1ea5t b\u1ecb m\u1ea5t v\u00e0 chi ph\u00ed b\u1ea3o tr\u00ec kh\u00f4ng c\u1ea7n thi\u1ebft.<\/p>\n\n\n\n

Jodoo<\/strong><\/a> gi\u00fap c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t l\u00e0m \u0111i\u1ec1u \u0111\u00f3 m\u00e0 kh\u00f4ng c\u1ea7n ch\u1edd \u0111\u1ee3i \u0111\u1ea7y \u0111\u1ee7 CMMS<\/strong><\/a> Tri\u1ec3n khai d\u1ec5 d\u00e0ng. L\u00e0 m\u1ed9t n\u1ec1n t\u1ea3ng s\u1ea3n xu\u1ea5t tinh g\u1ecdn kh\u00f4ng c\u1ea7n l\u1eadp tr\u00ecnh, n\u00f3 cho ph\u00e9p nh\u00f3m c\u1ee7a b\u1ea1n x\u00e2y d\u1ef1ng c\u00e1c bi\u1ec3u m\u1eabu ghi nh\u1eadt k\u00fd l\u1ed7i k\u1ef9 thu\u1eadt s\u1ed1, quy tr\u00ecnh b\u1ea3o tr\u00ec, danh s\u00e1ch ki\u1ec3m tra v\u00e0 b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n \u0111\u1ed9 tin c\u1eady tr\u1ef1c ti\u1ebfp ph\u00f9 h\u1ee3p v\u1edbi quy tr\u00ecnh th\u1ef1c t\u1ebf t\u1ea1i x\u01b0\u1edfng s\u1ea3n xu\u1ea5t. Thay v\u00ec ph\u1ea3i t\u00ecm ki\u1ebfm h\u1ed3 s\u01a1 gi\u1ea5y t\u1edd ho\u1eb7c h\u1ee3p nh\u1ea5t c\u00e1c t\u1eadp tin v\u00e0o cu\u1ed1i th\u00e1ng, b\u1ea1n c\u00f3 th\u1ec3 k\u1ebft n\u1ed1i c\u00e1c bi\u1ec3u m\u1eabu, quy tr\u00ecnh l\u00e0m vi\u1ec7c v\u00e0 b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n v\u00e0o m\u1ed9t h\u1ec7 th\u1ed1ng duy nh\u1ea5t \u0111\u1ec3 theo d\u00f5i nguy\u00ean nh\u00e2n g\u1ed1c nhanh h\u01a1n v\u00e0 c\u00f3 c\u00e1i nh\u00ecn r\u00f5 r\u00e0ng h\u01a1n v\u1ec1 MTBF (Th\u1eddi gian trung b\u00ecnh gi\u1eefa c\u00e1c l\u1ea7n h\u1ecfng h\u00f3c).<\/p>\n\n\n\n

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

N\u1ebfu b\u1ea1n mu\u1ed1n chu\u1ea9n h\u00f3a vi\u1ec7c theo d\u00f5i \u0111\u1ed9 tin c\u1eady m\u1ed9t c\u00e1ch nhanh ch\u00f3ng, b\u1ea1n c\u00f3 th\u1ec3 b\u1eaft \u0111\u1ea7u d\u00f9ng th\u1eed mi\u1ec5n ph\u00ed<\/a><\/strong> ho\u1eb7c \u0110\u1eb7t l\u1ecbch d\u00f9ng th\u1eed<\/a><\/strong> \u0110\u1ec3 xem Jodoo ph\u00f9 h\u1ee3p v\u1edbi ho\u1ea1t \u0111\u1ed9ng c\u1ee7a b\u1ea1n nh\u01b0 th\u1ebf n\u00e0o.<\/p>","protected":false},"excerpt":{"rendered":"

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