{"id":47488,"date":"2026-06-04T16:55:43","date_gmt":"2026-06-04T09:55:43","guid":{"rendered":"https:\/\/vinastech.vn\/?p=47488"},"modified":"2026-06-04T17:01:10","modified_gmt":"2026-06-04T10:01:10","slug":"he-thong-mang-cho-camera-ip-thiet-ke-poe-tinh-toan-cong-suat-va-cac-bai-hoc-thuc-te","status":"publish","type":"post","link":"https:\/\/vinastech.vn\/he-thong-mang-cho-camera-ip-thiet-ke-poe-tinh-toan-cong-suat-va-cac-bai-hoc-thuc-te\/","title":{"rendered":"\u00a0H\u1ec7 th\u1ed1ng m\u1ea1ng cho Camera IP \u2013 Thi\u1ebft k\u1ebf PoE, t\u00ednh to\u00e1n c\u00f4ng su\u1ea5t v\u00e0 c\u00e1c b\u00e0i h\u1ecdc th\u1ef1c t\u1ebf"},"content":{"rendered":"<p>Trong c\u00e1c d\u1ef1 \u00e1n chung c\u01b0 hi\u1ec7n \u0111\u1ea1i, h\u1ec7 th\u1ed1ng Camera IP g\u1ea7n nh\u01b0 \u0111\u00e3 thay th\u1ebf ho\u00e0n to\u00e0n camera Analog truy\u1ec1n th\u1ed1ng nh\u1edd kh\u1ea3 n\u0103ng cung c\u1ea5p h\u00ecnh \u1ea3nh ch\u1ea5t l\u01b0\u1ee3ng cao, d\u1ec5 qu\u1ea3n l\u00fd t\u1eadp trung v\u00e0 t\u00edch h\u1ee3p v\u1edbi c\u00e1c n\u1ec1n t\u1ea3ng AI.<\/p>\n<p>Tuy nhi\u00ean, qua qu\u00e1 tr\u00ecnh t\u01b0 v\u1ea5n v\u00e0 tri\u1ec3n khai th\u1ef1c t\u1ebf cho nhi\u1ec1u d\u1ef1 \u00e1n chung c\u01b0, kh\u00e1ch s\u1ea1n, b\u1ec7nh vi\u1ec7n v\u00e0 nh\u00e0 m\u00e1y, ch\u00fang t\u00f4i nh\u1eadn th\u1ea5y r\u1eb1ng ph\u1ea7n l\u1edbn c\u00e1c s\u1ef1 c\u1ed1 c\u1ee7a h\u1ec7 th\u1ed1ng Camera IP kh\u00f4ng \u0111\u1ebfn t\u1eeb camera m\u00e0 \u0111\u1ebfn t\u1eeb thi\u1ebft k\u1ebf m\u1ea1ng v\u00e0 ngu\u1ed3n PoE kh\u00f4ng \u0111\u00fang ngay t\u1eeb \u0111\u1ea7u.<\/p>\n<p>R\u1ea5t nhi\u1ec1u c\u00f4ng tr\u00ecnh sau khi \u0111\u01b0a v\u00e0o v\u1eadn h\u00e0nh xu\u1ea5t hi\u1ec7n c\u00e1c hi\u1ec7n t\u01b0\u1ee3ng:<\/p>\n<ul>\n<li>Camera m\u1ea5t t\u00edn hi\u1ec7u ng\u1eabu nhi\u00ean.<\/li>\n<li>Camera t\u1ef1 kh\u1edfi \u0111\u1ed9ng l\u1ea1i.<\/li>\n<li>H\u00ecnh \u1ea3nh gi\u1eadt, lag.<\/li>\n<li>Kh\u00f4ng ghi h\u00ecnh li\u00ean t\u1ee5c.<\/li>\n<li>Camera AI ho\u1ea1t \u0111\u1ed9ng kh\u00f4ng \u1ed5n \u0111\u1ecbnh.<\/li>\n<li>Kh\u00f4ng \u0111\u1ecdc \u0111\u01b0\u1ee3c bi\u1ec3n s\u1ed1 xe v\u00e0o gi\u1edd cao \u0111i\u1ec3m.<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-47492\" src=\"https:\/\/vinastech.vn\/wp-content\/uploads\/2026\/06\/Gemini_Generated_Image_az6jpxaz6jpxaz6j.png\" alt=\"\" width=\"1024\" height=\"1024\" srcset=\"https:\/\/vinastech.vn\/wp-content\/uploads\/2026\/06\/Gemini_Generated_Image_az6jpxaz6jpxaz6j.png 1024w, https:\/\/vinastech.vn\/wp-content\/uploads\/2026\/06\/Gemini_Generated_Image_az6jpxaz6jpxaz6j-400x400.png 400w, https:\/\/vinastech.vn\/wp-content\/uploads\/2026\/06\/Gemini_Generated_Image_az6jpxaz6jpxaz6j-800x800.png 800w, https:\/\/vinastech.vn\/wp-content\/uploads\/2026\/06\/Gemini_Generated_Image_az6jpxaz6jpxaz6j-280x280.png 280w, https:\/\/vinastech.vn\/wp-content\/uploads\/2026\/06\/Gemini_Generated_Image_az6jpxaz6jpxaz6j-768x768.png 768w, https:\/\/vinastech.vn\/wp-content\/uploads\/2026\/06\/Gemini_Generated_Image_az6jpxaz6jpxaz6j-300x300.png 300w, https:\/\/vinastech.vn\/wp-content\/uploads\/2026\/06\/Gemini_Generated_Image_az6jpxaz6jpxaz6j-600x600.png 600w, https:\/\/vinastech.vn\/wp-content\/uploads\/2026\/06\/Gemini_Generated_Image_az6jpxaz6jpxaz6j-100x100.png 100w, https:\/\/vinastech.vn\/wp-content\/uploads\/2026\/06\/Gemini_Generated_Image_az6jpxaz6jpxaz6j-50x50.png 50w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/p>\n<p>Nguy\u00ean nh\u00e2n ch\u1ee7 y\u1ebfu \u0111\u1ebfn t\u1eeb vi\u1ec7c \u0111\u00e1nh gi\u00e1 th\u1ea5p vai tr\u00f2 c\u1ee7a h\u1ec7 th\u1ed1ng m\u1ea1ng v\u00e0 PoE trong giai \u0111o\u1ea1n thi\u1ebft k\u1ebf.<\/p>\n<ol>\n<li><strong> Vai tr\u00f2 c\u1ee7a h\u1ec7 th\u1ed1ng m\u1ea1ng trong Camera IP<\/strong><\/li>\n<\/ol>\n<p>Kh\u00e1c v\u1edbi Camera Analog ch\u1ec9 truy\u1ec1n t\u00edn hi\u1ec7u h\u00ecnh \u1ea3nh, Camera IP ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t thi\u1ebft b\u1ecb m\u1ea1ng ho\u00e0n ch\u1ec9nh.<\/p>\n<p>M\u1ed7i camera bao g\u1ed3m:<\/p>\n<ul>\n<li>B\u1ed9 x\u1eed l\u00fd CPU.<\/li>\n<li>H\u1ec7 \u0111i\u1ec1u h\u00e0nh nh\u00fang.<\/li>\n<li>\u0110\u1ecba ch\u1ec9 IP.<\/li>\n<li>B\u1ed9 m\u00e3 h\u00f3a video.<\/li>\n<li>C\u1ed5ng m\u1ea1ng Ethernet.<\/li>\n<li>Nhi\u1ec1u t\u00ednh n\u0103ng AI.<\/li>\n<\/ul>\n<p>Do \u0111\u00f3 camera c\u1ea7n:<\/p>\n<ul>\n<li>K\u1ebft n\u1ed1i m\u1ea1ng \u1ed5n \u0111\u1ecbnh.<\/li>\n<li>B\u0103ng th\u00f4ng \u0111\u1ee7 l\u1edbn.<\/li>\n<li>Ngu\u1ed3n \u0111i\u1ec7n \u1ed5n \u0111\u1ecbnh.<\/li>\n<li>H\u1ec7 th\u1ed1ng chuy\u1ec3n m\u1ea1ch ph\u00f9 h\u1ee3p.<\/li>\n<\/ul>\n<p>N\u1ebfu m\u1ea1ng kh\u00f4ng \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u00fang, ch\u1ea5t l\u01b0\u1ee3ng h\u00ecnh \u1ea3nh s\u1ebd b\u1ecb \u1ea3nh h\u01b0\u1edfng ngay c\u1ea3 khi s\u1eed d\u1ee5ng camera cao c\u1ea5p.<\/p>\n<ol start=\"2\">\n<li><strong> C\u00f4ng ngh\u1ec7 PoE l\u00e0 g\u00ec?<\/strong><\/li>\n<\/ol>\n<p>PoE (Power over Ethernet) l\u00e0 c\u00f4ng ngh\u1ec7 cho ph\u00e9p truy\u1ec1n \u0111\u1ed3ng th\u1eddi:<\/p>\n<ul>\n<li>D\u1eef li\u1ec7u m\u1ea1ng.<\/li>\n<li>Ngu\u1ed3n \u0111i\u1ec7n.<\/li>\n<\/ul>\n<p>tr\u00ean c\u00f9ng m\u1ed9t s\u1ee3i c\u00e1p m\u1ea1ng.<\/p>\n<p>\u0110i\u1ec1u n\u00e0y gi\u00fap lo\u1ea1i b\u1ecf vi\u1ec7c k\u00e9o th\u00eam ngu\u1ed3n \u0111i\u1ec7n ri\u00eang cho t\u1eebng camera.<\/p>\n<p><strong>L\u1ee3i \u00edch c\u1ee7a PoE<\/strong><\/p>\n<p>Gi\u1ea3m chi ph\u00ed thi c\u00f4ng.<\/p>\n<p>Kh\u00f4ng c\u1ea7n \u1ed5 c\u1eafm \u0111i\u1ec7n t\u1ea1i v\u1ecb tr\u00ed camera.<\/p>\n<p>\u0110\u01a1n gi\u1ea3n h\u00f3a h\u1ec7 th\u1ed1ng d\u00e2y d\u1eabn.<\/p>\n<p>Qu\u1ea3n l\u00fd ngu\u1ed3n t\u1eadp trung.<\/p>\n<p>Kh\u1edfi \u0111\u1ed9ng l\u1ea1i camera t\u1eeb xa.<\/p>\n<p>D\u1ec5 b\u1ea3o tr\u00ec.<\/p>\n<p>T\u0103ng t\u00ednh th\u1ea9m m\u1ef9 cho c\u00f4ng tr\u00ecnh.<\/p>\n<p>Hi\u1ec7n nay g\u1ea7n nh\u01b0 100% h\u1ec7 th\u1ed1ng Camera IP trong chung c\u01b0 \u0111\u1ec1u s\u1eed d\u1ee5ng PoE.<\/p>\n<ol start=\"3\">\n<li><strong> C\u00e1c chu\u1ea9n PoE ph\u1ed5 bi\u1ebfn<\/strong><\/li>\n<\/ol>\n<p><strong>PoE (IEEE 802.3af)<\/strong><\/p>\n<p>\u0110\u00e2y l\u00e0 chu\u1ea9n PoE c\u01a1 b\u1ea3n.<\/p>\n<p>C\u00f4ng su\u1ea5t c\u1ea5p ngu\u1ed3n:<\/p>\n<ul>\n<li>T\u1ed1i \u0111a 15.4W m\u1ed7i c\u1ed5ng.<\/li>\n<li>C\u00f4ng su\u1ea5t th\u1ef1c t\u1ebf t\u1ea1i thi\u1ebft b\u1ecb kho\u1ea3ng 12.95W.<\/li>\n<\/ul>\n<p>\u1ee8ng d\u1ee5ng:<\/p>\n<ul>\n<li>Camera Dome th\u00f4ng th\u01b0\u1eddng.<\/li>\n<li>Camera Bullet c\u01a1 b\u1ea3n.<\/li>\n<li>\u0110i\u1ec7n tho\u1ea1i IP.<\/li>\n<li>Thi\u1ebft b\u1ecb Access Control.<\/li>\n<\/ul>\n<p><strong>Kinh nghi\u1ec7m th\u1ef1c t\u1ebf<\/strong><\/p>\n<p>\u0110\u1ed1i v\u1edbi Camera 2MP ho\u1eb7c 4MP th\u00f4ng th\u01b0\u1eddng, PoE chu\u1ea9n af th\u01b0\u1eddng \u0111\u00e1p \u1ee9ng t\u1ed1t.<\/p>\n<p>Tuy nhi\u00ean khi b\u1eadt h\u1ed3ng ngo\u1ea1i ho\u1eb7c AI, nhi\u1ec1u camera c\u00f3 th\u1ec3 ti\u00eau th\u1ee5 g\u1ea7n m\u1ee9c t\u1ed1i \u0111a.<\/p>\n<p><strong>PoE+ (IEEE 802.3at)<\/strong><\/p>\n<p>PoE+ l\u00e0 chu\u1ea9n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ph\u1ed5 bi\u1ebfn nh\u1ea5t hi\u1ec7n nay.<\/p>\n<p>C\u00f4ng su\u1ea5t c\u1ea5p ngu\u1ed3n:<\/p>\n<ul>\n<li>T\u1ed1i \u0111a 30W m\u1ed7i c\u1ed5ng.<\/li>\n<li>C\u00f4ng su\u1ea5t th\u1ef1c t\u1ebf t\u1ea1i thi\u1ebft b\u1ecb kho\u1ea3ng 25.5W.<\/li>\n<\/ul>\n<p>\u1ee8ng d\u1ee5ng:<\/p>\n<ul>\n<li>Camera AI.<\/li>\n<li>Camera PTZ c\u1ee1 nh\u1ecf.<\/li>\n<li>Camera h\u1ed3ng ngo\u1ea1i c\u00f4ng su\u1ea5t cao.<\/li>\n<li>Access Point Wifi 6.<\/li>\n<\/ul>\n<p><strong>Kinh nghi\u1ec7m th\u1ef1c t\u1ebf<\/strong><\/p>\n<p>\u0110\u1ed1i v\u1edbi c\u00e1c d\u1ef1 \u00e1n chung c\u01b0 m\u1edbi, PoE+ n\u00ean \u0111\u01b0\u1ee3c xem l\u00e0 ti\u00eau chu\u1ea9n t\u1ed1i thi\u1ec3u.<\/p>\n<p>L\u00fd do:<\/p>\n<ul>\n<li>Camera ng\u00e0y c\u00e0ng s\u1eed d\u1ee5ng nhi\u1ec1u t\u00ednh n\u0103ng AI.<\/li>\n<li>H\u1ed3ng ngo\u1ea1i m\u1ea1nh h\u01a1n.<\/li>\n<li>Nhi\u1ec1u camera t\u00edch h\u1ee3p loa v\u00e0 micro.<\/li>\n<li>C\u00f4ng su\u1ea5t ti\u00eau th\u1ee5 ng\u00e0y c\u00e0ng t\u0103ng.<\/li>\n<\/ul>\n<p><strong>Hi-PoE (IEEE 802.3bt)<\/strong><\/p>\n<p>Hi-PoE ho\u1eb7c PoE++ l\u00e0 chu\u1ea9n c\u1ea5p ngu\u1ed3n c\u00f4ng su\u1ea5t cao.<\/p>\n<p>C\u00f4ng su\u1ea5t:<\/p>\n<ul>\n<li>60W.<\/li>\n<li>90W.<\/li>\n<li>Th\u1eadm ch\u00ed tr\u00ean 100W t\u00f9y thi\u1ebft b\u1ecb.<\/li>\n<\/ul>\n<p>\u1ee8ng d\u1ee5ng:<\/p>\n<ul>\n<li>Camera PTZ t\u1ed1c \u0111\u1ed9 cao.<\/li>\n<li>Camera nh\u1eadn di\u1ec7n bi\u1ec3n s\u1ed1.<\/li>\n<li>Camera AI cao c\u1ea5p.<\/li>\n<li>Thi\u1ebft b\u1ecb \u0111i\u1ec1u khi\u1ec3n ngo\u00e0i tr\u1eddi.<\/li>\n<li>M\u00e0n h\u00ecnh qu\u1ea3ng c\u00e1o IP.<\/li>\n<\/ul>\n<p><strong>Kinh nghi\u1ec7m th\u1ef1c t\u1ebf<\/strong><\/p>\n<p>Kh\u00f4ng n\u00ean tri\u1ec3n khai Hi-PoE \u0111\u1ea1i tr\u00e0.<\/p>\n<p>Ch\u1ec9 n\u00ean s\u1eed d\u1ee5ng cho:<\/p>\n<ul>\n<li>Camera PTZ.<\/li>\n<li>Camera LPR.<\/li>\n<li>Thi\u1ebft b\u1ecb \u0111\u1eb7c th\u00f9.<\/li>\n<\/ul>\n<p>V\u00ec chi ph\u00ed thi\u1ebft b\u1ecb v\u00e0 \u0111i\u1ec7n n\u0103ng ti\u00eau th\u1ee5 cao h\u01a1n \u0111\u00e1ng k\u1ec3.<\/p>\n<ol start=\"4\">\n<li><strong> T\u00ednh to\u00e1n c\u00f4ng su\u1ea5t PoE<\/strong><\/li>\n<\/ol>\n<p>\u0110\u00e2y l\u00e0 b\u01b0\u1edbc th\u01b0\u1eddng b\u1ecb b\u1ecf qua trong nhi\u1ec1u d\u1ef1 \u00e1n.<\/p>\n<p>Nhi\u1ec1u k\u1ef9 s\u01b0 ch\u1ec9 quan t\u00e2m:<\/p>\n<ul>\n<li>Camera bao nhi\u00eau chi\u1ebfc.<\/li>\n<li>Switch bao nhi\u00eau port.<\/li>\n<\/ul>\n<p>Nh\u01b0ng kh\u00f4ng t\u00ednh t\u1ed5ng c\u00f4ng su\u1ea5t ti\u00eau th\u1ee5.<\/p>\n<p>\u0110\u00e2y l\u00e0 nguy\u00ean nh\u00e2n g\u00e2y ra h\u00e0ng lo\u1ea1t s\u1ef1 c\u1ed1 sau khi v\u1eadn h\u00e0nh.<\/p>\n<p><strong>V\u00ed d\u1ee5 th\u1ef1c t\u1ebf<\/strong><\/p>\n<p>D\u1ef1 \u00e1n:<\/p>\n<ul>\n<li>48 Camera IP.<\/li>\n<li>M\u1ed7i camera ti\u00eau th\u1ee5 12W.<\/li>\n<\/ul>\n<p>T\u1ed5ng c\u00f4ng su\u1ea5t:<\/p>\n<p>48 \u00d7 12W = 576W<\/p>\n<p>Nhi\u1ec1u ng\u01b0\u1eddi s\u1ebd l\u1ef1a ch\u1ecdn switch PoE 600W.<\/p>\n<p>Tuy nhi\u00ean \u0111\u00e2y l\u00e0 sai l\u1ea7m.<\/p>\n<p>C\u1ea7n t\u00ednh th\u00eam:<\/p>\n<ul>\n<li>Suy hao c\u00e1p.<\/li>\n<li>C\u00f4ng su\u1ea5t IR ban \u0111\u00eam.<\/li>\n<li>C\u00f4ng su\u1ea5t AI.<\/li>\n<li>D\u1ef1 ph\u00f2ng t\u01b0\u01a1ng lai.<\/li>\n<\/ul>\n<p>Nguy\u00ean t\u1eafc thi\u1ebft k\u1ebf th\u1ef1c t\u1ebf:<\/p>\n<p>PoE Budget \u2265 T\u1ed5ng t\u1ea3i x 1.3<\/p>\n<p>\u00c1p d\u1ee5ng:<\/p>\n<p>576W \u00d7 1.3 = 748.8W<\/p>\n<p>Do \u0111\u00f3 n\u00ean l\u1ef1a ch\u1ecdn switch:<\/p>\n<ul>\n<li>PoE Budget 740W ho\u1eb7c cao h\u01a1n.<\/li>\n<li>T\u1ed1t nh\u1ea5t t\u1eeb 800W tr\u1edf l\u00ean.<\/li>\n<\/ul>\n<p><strong>Khuy\u1ebfn ngh\u1ecb c\u1ee7a VinaSTech<\/strong><\/p>\n<p>Lu\u00f4n d\u1ef1 ph\u00f2ng:<\/p>\n<ul>\n<li>30% c\u00f4ng su\u1ea5t PoE.<\/li>\n<li>20% s\u1ed1 l\u01b0\u1ee3ng port.<\/li>\n<\/ul>\n<p>Kh\u00f4ng thi\u1ebft k\u1ebf h\u1ec7 th\u1ed1ng ho\u1ea1t \u0111\u1ed9ng \u1edf m\u1ee9c t\u1ea3i t\u1ed1i \u0111a.<\/p>\n<ol start=\"5\">\n<li><strong> T\u00ednh to\u00e1n b\u0103ng th\u00f4ng Camera<\/strong><\/li>\n<\/ol>\n<p>Ngo\u00e0i ngu\u1ed3n \u0111i\u1ec7n, b\u0103ng th\u00f4ng l\u00e0 y\u1ebfu t\u1ed1 quy\u1ebft \u0111\u1ecbnh hi\u1ec7u n\u0103ng c\u1ee7a h\u1ec7 th\u1ed1ng.<\/p>\n<p><strong>V\u00ed d\u1ee5 Camera 4MP H.265<\/strong><\/p>\n<p>Bitrate trung b\u00ecnh:<\/p>\n<ul>\n<li>3Mbps \u0111\u1ebfn 6Mbps.<\/li>\n<\/ul>\n<p>Gi\u1ea3 s\u1eed:<\/p>\n<p>48 Camera \u00d7 5Mbps<\/p>\n<p>T\u1ed5ng l\u01b0u l\u01b0\u1ee3ng:<\/p>\n<p>240 Mbps<\/p>\n<p>Con s\u1ed1 n\u00e0y ch\u01b0a bao g\u1ed3m:<\/p>\n<ul>\n<li>L\u01b0u l\u01b0\u1ee3ng xem tr\u1ef1c ti\u1ebfp.<\/li>\n<li>L\u01b0u l\u01b0\u1ee3ng playback.<\/li>\n<li>D\u1ef1 ph\u00f2ng t\u0103ng bitrate.<\/li>\n<\/ul>\n<p>L\u01b0u l\u01b0\u1ee3ng th\u1ef1c t\u1ebf c\u00f3 th\u1ec3 l\u00ean t\u1edbi:<\/p>\n<p>300Mbps \u2013 400Mbps.<\/p>\n<p><strong>Camera AI<\/strong><\/p>\n<p>Camera AI th\u01b0\u1eddng c\u00f3 bitrate:<\/p>\n<ul>\n<li>6Mbps \u0111\u1ebfn 12Mbps.<\/li>\n<\/ul>\n<p>N\u1ebfu:<\/p>\n<p>48 Camera AI \u00d7 8Mbps<\/p>\n<p>T\u1ed5ng l\u01b0u l\u01b0\u1ee3ng:<\/p>\n<p>384Mbps<\/p>\n<p>Khi c\u1ed9ng th\u00eam c\u00e1c phi\u00ean xem tr\u1ef1c ti\u1ebfp v\u00e0 qu\u1ea3n tr\u1ecb:<\/p>\n<p>H\u1ec7 th\u1ed1ng c\u00f3 th\u1ec3 v\u01b0\u1ee3t 500Mbps.<\/p>\n<ol start=\"6\">\n<li><strong> Thi\u1ebft k\u1ebf uplink cho h\u1ec7 th\u1ed1ng Camera<\/strong><\/li>\n<\/ol>\n<p>M\u1ed9t trong nh\u1eefng l\u1ed7i ph\u1ed5 bi\u1ebfn nh\u1ea5t l\u00e0 ch\u1ec9 t\u1eadp trung v\u00e0o camera m\u00e0 qu\u00ean t\u00ednh to\u00e1n uplink.<\/p>\n<p><strong>V\u00ed d\u1ee5 th\u1ef1c t\u1ebf<\/strong><\/p>\n<p>T\u1ea7ng h\u1ea7m:<\/p>\n<ul>\n<li>48 Camera.<\/li>\n<li>Bitrate trung b\u00ecnh 6Mbps.<\/li>\n<\/ul>\n<p>T\u1ed5ng l\u01b0u l\u01b0\u1ee3ng:<\/p>\n<p>288Mbps<\/p>\n<p>N\u1ebfu c\u1ed9ng th\u00eam:<\/p>\n<ul>\n<li>Playback.<\/li>\n<li>Qu\u1ea3n tr\u1ecb.<\/li>\n<li>D\u1ef1 ph\u00f2ng.<\/li>\n<\/ul>\n<p>L\u01b0u l\u01b0\u1ee3ng c\u00f3 th\u1ec3 \u0111\u1ea1t:<\/p>\n<p>500Mbps \u2013 700Mbps.<\/p>\n<p>N\u1ebfu uplink ch\u1ec9 c\u00f3:<\/p>\n<p>1 x 1Gbps<\/p>\n<p>H\u1ec7 th\u1ed1ng v\u1eabn ho\u1ea1t \u0111\u1ed9ng.<\/p>\n<p>Nh\u01b0ng khi m\u1edf nhi\u1ec1u m\u00e0n h\u00ecnh gi\u00e1m s\u00e1t c\u00f9ng l\u00fac ho\u1eb7c playback d\u1eef li\u1ec7u, uplink c\u00f3 th\u1ec3 b\u1ecb b\u00e3o h\u00f2a.<\/p>\n<p><strong>Khuy\u1ebfn ngh\u1ecb<\/strong><\/p>\n<p>\u0110\u1ed1i v\u1edbi:<\/p>\n<ul>\n<li>D\u01b0\u1edbi 30 Camera: 1Gbps.<\/li>\n<li>30 \u2013 80 Camera: 2 x 1Gbps ho\u1eb7c 10Gbps.<\/li>\n<li>Tr\u00ean 80 Camera: 10Gbps.<\/li>\n<\/ul>\n<p>Kh\u00f4ng n\u00ean thi\u1ebft k\u1ebf uplink v\u1eeba \u0111\u1ee7.<\/p>\n<ol start=\"7\">\n<li><strong> Thi\u1ebft k\u1ebf VLAN cho Camera<\/strong><\/li>\n<\/ol>\n<p>Camera kh\u00f4ng n\u00ean d\u00f9ng chung m\u1ea1ng v\u1edbi:<\/p>\n<ul>\n<li>Internet c\u01b0 d\u00e2n.<\/li>\n<li>Wifi kh\u00e1ch.<\/li>\n<li>M\u00e1y t\u00ednh v\u0103n ph\u00f2ng.<\/li>\n<\/ul>\n<p><strong>VLAN Camera ri\u00eang<\/strong><\/p>\n<p>V\u00ed d\u1ee5:<\/p>\n<p>VLAN 20 \u2013 Camera<\/p>\n<p>To\u00e0n b\u1ed9 camera k\u1ebft n\u1ed1i v\u00e0o VLAN ri\u00eang.<\/p>\n<p>Ch\u1ec9 cho ph\u00e9p:<\/p>\n<ul>\n<li>NVR.<\/li>\n<li>VMS.<\/li>\n<li>M\u00e1y tr\u1ea1m gi\u00e1m s\u00e1t.<\/li>\n<\/ul>\n<p>\u0111\u01b0\u1ee3c truy c\u1eadp.<\/p>\n<p><strong>L\u1ee3i \u00edch<\/strong><\/p>\n<p>Gi\u1ea3m Broadcast.<\/p>\n<p>T\u0103ng b\u1ea3o m\u1eadt.<\/p>\n<p>D\u1ec5 qu\u1ea3n l\u00fd IP.<\/p>\n<p>D\u1ec5 x\u1eed l\u00fd s\u1ef1 c\u1ed1.<\/p>\n<p>\u1ed4n \u0111\u1ecbnh h\u01a1n.<\/p>\n<p>\u0110\u00e2y l\u00e0 ti\u00eau chu\u1ea9n b\u1eaft bu\u1ed9c trong m\u1ecdi d\u1ef1 \u00e1n chuy\u00ean nghi\u1ec7p.<\/p>\n<ol start=\"8\">\n<li><strong> C\u00e1c l\u1ed7i th\u01b0\u1eddng g\u1eb7p khi tri\u1ec3n khai Camera IP<\/strong><\/li>\n<\/ol>\n<p><strong>Thi\u1ebfu PoE Budget<\/strong><\/p>\n<p>\u0110\u00e2y l\u00e0 l\u1ed7i ph\u1ed5 bi\u1ebfn nh\u1ea5t.<\/p>\n<p>Bi\u1ec3u hi\u1ec7n:<\/p>\n<ul>\n<li>Camera t\u1ef1 reboot.<\/li>\n<li>Camera m\u1ea5t k\u1ebft n\u1ed1i ban \u0111\u00eam.<\/li>\n<li>H\u00ecnh \u1ea3nh ch\u1eadp ch\u1eddn.<\/li>\n<\/ul>\n<p>Nguy\u00ean nh\u00e2n:<\/p>\n<p>Switch kh\u00f4ng \u0111\u1ee7 c\u00f4ng su\u1ea5t c\u1ea5p ngu\u1ed3n.<\/p>\n<p><strong>B\u00e0i h\u1ecdc th\u1ef1c t\u1ebf<\/strong><\/p>\n<p>R\u1ea5t nhi\u1ec1u d\u1ef1 \u00e1n ph\u1ea3i thay m\u1edbi to\u00e0n b\u1ed9 switch ch\u1ec9 sau v\u00e0i th\u00e1ng v\u1eadn h\u00e0nh.<\/p>\n<p>Chi ph\u00ed kh\u1eafc ph\u1ee5c th\u01b0\u1eddng cao h\u01a1n nhi\u1ec1u l\u1ea7n so v\u1edbi vi\u1ec7c l\u1ef1a ch\u1ecdn \u0111\u00fang thi\u1ebft b\u1ecb ngay t\u1eeb \u0111\u1ea7u.<\/p>\n<p><strong>Uplink 1Gb b\u1ecb ngh\u1ebdn<\/strong><\/p>\n<p>\u0110\u00e2y l\u00e0 l\u1ed7i th\u01b0\u1eddng g\u1eb7p t\u1ea1i:<\/p>\n<ul>\n<li>H\u1ea7m xe.<\/li>\n<li>S\u1ea3nh.<\/li>\n<li>Khu v\u1ef1c c\u00f3 m\u1eadt \u0111\u1ed9 camera cao.<\/li>\n<\/ul>\n<p>Bi\u1ec3u hi\u1ec7n:<\/p>\n<ul>\n<li>Playback ch\u1eadm.<\/li>\n<li>Camera gi\u1eadt h\u00ecnh.<\/li>\n<li>M\u1ea5t frame.<\/li>\n<li>Tr\u1ec5 h\u00ecnh.<\/li>\n<\/ul>\n<p>Nguy\u00ean nh\u00e2n:<\/p>\n<p>L\u01b0u l\u01b0\u1ee3ng Camera v\u01b0\u1ee3t kh\u1ea3 n\u0103ng c\u1ee7a uplink.<\/p>\n<p><strong>Gi\u1ea3i ph\u00e1p<\/strong><\/p>\n<ul>\n<li>S\u1eed d\u1ee5ng uplink 10Gb.<\/li>\n<li>Link Aggregation.<\/li>\n<li>Ph\u00e2n t\u1ea3i nhi\u1ec1u switch.<\/li>\n<li>Thi\u1ebft k\u1ebf l\u1ea1i ki\u1ebfn tr\u00fac m\u1ea1ng.<\/li>\n<\/ul>\n<p><strong>Kh\u00f4ng t\u00ednh t\u1ea3i gi\u1edd cao \u0111i\u1ec3m<\/strong><\/p>\n<p>Nhi\u1ec1u d\u1ef1 \u00e1n ch\u1ec9 t\u00ednh bitrate trung b\u00ecnh.<\/p>\n<p>Nh\u01b0ng th\u1ef1c t\u1ebf:<\/p>\n<ul>\n<li>Ban \u0111\u00eam.<\/li>\n<li>Tr\u1eddi m\u01b0a.<\/li>\n<li>Khu v\u1ef1c \u0111\u00f4ng ng\u01b0\u1eddi.<\/li>\n<\/ul>\n<p>bitrate c\u00f3 th\u1ec3 t\u0103ng 30\u201350%.<\/p>\n<p>N\u1ebfu kh\u00f4ng d\u1ef1 ph\u00f2ng, h\u1ec7 th\u1ed1ng s\u1ebd ho\u1ea1t \u0111\u1ed9ng kh\u00f4ng \u1ed5n \u0111\u1ecbnh.<\/p>\n<p><strong>Kh\u00f4ng t\u00ednh m\u1edf r\u1ed9ng t\u01b0\u01a1ng lai<\/strong><\/p>\n<p>Sau khi b\u00e0n giao th\u01b0\u1eddng ph\u00e1t sinh:<\/p>\n<ul>\n<li>Camera b\u1ed5 sung.<\/li>\n<li>Camera AI.<\/li>\n<li>Camera nh\u1eadn di\u1ec7n bi\u1ec3n s\u1ed1.<\/li>\n<li>Camera PTZ.<\/li>\n<\/ul>\n<p>N\u1ebfu kh\u00f4ng d\u1ef1 ph\u00f2ng ngay t\u1eeb \u0111\u1ea7u, r\u1ea5t d\u1ec5 ph\u1ea3i thay switch ho\u1eb7c n\u00e2ng c\u1ea5p to\u00e0n b\u1ed9 h\u1ea1 t\u1ea7ng.<\/p>\n<p>&nbsp;<\/p>\n<p>Thi\u1ebft k\u1ebf m\u1ea1ng cho Camera IP kh\u00f4ng ch\u1ec9 l\u00e0 l\u1ef1a ch\u1ecdn switch PoE v\u00e0 k\u1ebft n\u1ed1i camera. \u0110\u00e2y l\u00e0 b\u00e0i to\u00e1n t\u1ed5ng th\u1ec3 bao g\u1ed3m ngu\u1ed3n \u0111i\u1ec7n, b\u0103ng th\u00f4ng, VLAN, uplink, l\u01b0u l\u01b0\u1ee3ng video v\u00e0 kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng trong t\u01b0\u01a1ng lai.<\/p>\n<p>Kinh nghi\u1ec7m th\u1ef1c t\u1ebf VinaSTech th\u1ea5y ph\u1ea7n l\u1edbn c\u00e1c s\u1ef1 c\u1ed1 Camera CCTV trong chung c\u01b0 \u0111\u1ec1u b\u1eaft ngu\u1ed3n t\u1eeb vi\u1ec7c thi\u1ebft k\u1ebf m\u1ea1ng ch\u01b0a \u0111\u00fang ho\u1eb7c t\u00ednh to\u00e1n PoE ch\u01b0a \u0111\u1ee7. M\u1ed9t h\u1ec7 th\u1ed1ng \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf b\u00e0i b\u1ea3n ngay t\u1eeb \u0111\u1ea7u s\u1ebd gi\u00fap ch\u1ee7 \u0111\u1ea7u t\u01b0 ti\u1ebft ki\u1ec7m \u0111\u00e1ng k\u1ec3 chi ph\u00ed v\u1eadn h\u00e0nh, gi\u1ea3m thi\u1ec3u s\u1ef1 c\u1ed1 v\u00e0 \u0111\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng khai th\u00e1c d\u1eef li\u1ec7u h\u00ecnh \u1ea3nh trong su\u1ed1t v\u00f2ng \u0111\u1eddi c\u00f4ng tr\u00ecnh t\u1eeb 10 \u0111\u1ebfn 15 n\u0103m.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Trong c\u00e1c d\u1ef1 \u00e1n chung c\u01b0 hi\u1ec7n \u0111\u1ea1i, h\u1ec7 th\u1ed1ng Camera IP g\u1ea7n nh\u01b0 \u0111\u00e3 thay th\u1ebf ho\u00e0n to\u00e0n camera Analog truy\u1ec1n th\u1ed1ng nh\u1edd kh\u1ea3 n\u0103ng cung c\u1ea5p h\u00ecnh \u1ea3nh ch\u1ea5t l\u01b0\u1ee3ng cao, d\u1ec5 qu\u1ea3n l\u00fd t\u1eadp trung v\u00e0 t\u00edch h\u1ee3p v\u1edbi c\u00e1c n\u1ec1n t\u1ea3ng AI.<br \/>\nTuy nhi\u00ean, qua qu\u00e1 tr\u00ecnh t\u01b0 v\u1ea5n v\u00e0 tri\u1ec3n khai th\u1ef1c t\u1ebf cho nhi\u1ec1u d\u1ef1 \u00e1n chung c\u01b0, kh\u00e1ch s\u1ea1n, b\u1ec7nh vi\u1ec7n v\u00e0 nh\u00e0 m\u00e1y, ch\u00fang t\u00f4i nh\u1eadn th\u1ea5y r\u1eb1ng ph\u1ea7n l\u1edbn c\u00e1c s\u1ef1 c\u1ed1 c\u1ee7a h\u1ec7 th\u1ed1ng Camera IP kh\u00f4ng \u0111\u1ebfn t\u1eeb camera m\u00e0 \u0111\u1ebfn t\u1eeb thi\u1ebft k\u1ebf m\u1ea1ng v\u00e0 ngu\u1ed3n PoE kh\u00f4ng \u0111\u00fang ngay t\u1eeb \u0111\u1ea7u.<br \/>\nR\u1ea5t nhi\u1ec1u c\u00f4ng tr\u00ecnh sau khi \u0111\u01b0a v\u00e0o v\u1eadn h\u00e0nh xu\u1ea5t hi\u1ec7n c\u00e1c hi\u1ec7n t\u01b0\u1ee3ng:<\/p>\n","protected":false},"author":1,"featured_media":47493,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1,2545,2555,2557,2559,2571,1718,1612,2547,2551],"tags":[3426,3440,3442],"class_list":["post-47488","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-khong-phan-loai","category-dich-vu","category-giai-phap","category-ha-tang-cntt","category-ha-tang-mang","category-he-thong-giam-sat-va-tu-dong-hoa","category-tin-cong-nghe-vi","category-tin-tuc","category-trien-khai-tich-hop-he-thong","category-tu-van-giai-phap","tag-camera","tag-lap-dat-camera","tag-thiet-ke-poe-cho-camera"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u00a0H\u1ec7 th\u1ed1ng m\u1ea1ng cho Camera IP \u2013 Thi\u1ebft k\u1ebf PoE, t\u00ednh to\u00e1n c\u00f4ng su\u1ea5t v\u00e0 c\u00e1c b\u00e0i h\u1ecdc th\u1ef1c t\u1ebf<\/title>\n<meta name=\"description\" content=\"Trong c\u00e1c d\u1ef1 \u00e1n chung c\u01b0 hi\u1ec7n \u0111\u1ea1i, h\u1ec7 th\u1ed1ng Camera IP g\u1ea7n nh\u01b0 \u0111\u00e3 thay th\u1ebf ho\u00e0n to\u00e0n camera Analog truy\u1ec1n th\u1ed1ng nh\u1edd kh\u1ea3 n\u0103ng cung c\u1ea5p h\u00ecnh \u1ea3nh ch\u1ea5t l\u01b0\u1ee3ng cao, d\u1ec5 qu\u1ea3n l\u00fd t\u1eadp trung v\u00e0 t\u00edch h\u1ee3p v\u1edbi c\u00e1c n\u1ec1n t\u1ea3ng AI.Tuy nhi\u00ean, qua qu\u00e1 tr\u00ecnh t\u01b0 v\u1ea5n v\u00e0 tri\u1ec3n khai th\u1ef1c t\u1ebf cho nhi\u1ec1u d\u1ef1 \u00e1n chung c\u01b0, kh\u00e1ch s\u1ea1n, b\u1ec7nh vi\u1ec7n v\u00e0 nh\u00e0 m\u00e1y, ch\u00fang t\u00f4i nh\u1eadn th\u1ea5y r\u1eb1ng ph\u1ea7n l\u1edbn c\u00e1c s\u1ef1 c\u1ed1 c\u1ee7a h\u1ec7 th\u1ed1ng Camera IP kh\u00f4ng \u0111\u1ebfn t\u1eeb camera m\u00e0 \u0111\u1ebfn t\u1eeb thi\u1ebft k\u1ebf m\u1ea1ng v\u00e0 ngu\u1ed3n PoE kh\u00f4ng \u0111\u00fang ngay t\u1eeb \u0111\u1ea7u.R\u1ea5t nhi\u1ec1u c\u00f4ng tr\u00ecnh sau khi \u0111\u01b0a v\u00e0o v\u1eadn h\u00e0nh xu\u1ea5t hi\u1ec7n c\u00e1c hi\u1ec7n t\u01b0\u1ee3ng:\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/vinastech.vn\/he-thong-mang-cho-camera-ip-thiet-ke-poe-tinh-toan-cong-suat-va-cac-bai-hoc-thuc-te\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u00a0H\u1ec7 th\u1ed1ng m\u1ea1ng cho Camera IP \u2013 Thi\u1ebft k\u1ebf PoE, t\u00ednh to\u00e1n c\u00f4ng su\u1ea5t v\u00e0 c\u00e1c b\u00e0i h\u1ecdc th\u1ef1c t\u1ebf\" \/>\n<meta property=\"og:description\" content=\"Trong c\u00e1c d\u1ef1 \u00e1n chung c\u01b0 hi\u1ec7n \u0111\u1ea1i, h\u1ec7 th\u1ed1ng Camera IP g\u1ea7n nh\u01b0 \u0111\u00e3 thay th\u1ebf ho\u00e0n to\u00e0n camera Analog truy\u1ec1n th\u1ed1ng 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