{"id":9007,"date":"2018-07-24T15:13:43","date_gmt":"2018-07-24T08:13:43","guid":{"rendered":"https:\/\/phongvu.vn\/cong-nghe\/?p=9007"},"modified":"2018-07-24T15:13:43","modified_gmt":"2018-07-24T08:13:43","slug":"camera-hong-ngoai-hoat-dong-nhu-the-nao","status":"publish","type":"post","link":"https:\/\/phongvu.vn\/cong-nghe\/camera-hong-ngoai-hoat-dong-nhu-the-nao\/","title":{"rendered":"Camera h\u1ed3ng ngo\u1ea1i ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o?"},"content":{"rendered":"

Camera h\u1ed3ng ngo\u1ea1i l\u00e0 m\u1ed9t lo\u1ea1i camera s\u1eed d\u1ee5ng tia c\u00f3 \u00e1nh s\u00e1ng m\u00e0u h\u1ed3ng kh\u00f4ng th\u1ec3 nh\u00ecn th\u1ea5y b\u1eb1ng m\u1eaft th\u01b0\u1eddng. Trong m\u00f4i tr\u01b0\u1eddng thi\u1ebfu s\u00e1ng m\u00e0 m\u1eaft ng\u01b0\u1eddi kh\u00f3 c\u00f3 th\u1ec3 nh\u00ecn th\u1ea5y th\u00ec camera h\u1ed3ng ngo\u1ea1i c\u00f3 th\u1ec3 ghi l\u1ea1i h\u00ecnh \u1ea3nh r\u00f5 r\u00e0ng nh\u1edd \u0111\u00e8n h\u1ed3ng ngo\u1ea1i \u0111\u01b0\u1ee3c k\u00edch ho\u1ea1t.<\/strong><\/h2>\n

Tia h\u1ed3ng ngo\u1ea1i l\u00e0 b\u1ee9c x\u1ea1 \u0111i\u1ec7n t\u1eeb c\u00f3 b\u01b0\u1edbc s\u00f3ng d\u00e0i h\u01a1n \u00e1nh s\u00e1ng nh\u00ecn th\u1ea5y nh\u01b0ng ng\u1eafn h\u01a1n t\u1ecba b\u1ee9c x\u1ea1 vi s\u00f3ng. T\u00ean h\u1ed3ng ngo\u1ea1i c\u00f3 \u00fd ngh\u0129a thu\u1ea7n l\u00e0 “ngo\u00e0i m\u1ee9c \u0111\u1ecf”, m\u00e0u \u0111\u1ecf l\u00e0 m\u00e0u s\u1eafc c\u00f3 b\u01b0\u1edbc s\u00f3ng d\u00e0i nh\u1ea5t trong \u00e1nh s\u00e1ng nh\u00ecn th\u1ea5y.<\/p>\n

\"Camera<\/p>\n

Kh\u00e1c v\u1edbi camera th\u00f4ng th\u01b0\u1eddng ho\u1ea1t \u0111\u1ed9ng \u1edf d\u1ea3i \u00e1nh s\u00e1ng nh\u00ecn th\u1ea5y (b\u01b0\u1edbc s\u00f3ng trong kho\u1ea3ng 450-750 nm), camera h\u1ed3ng ngo\u1ea1i ho\u1ea1t \u0111\u1ed9ng \u1edf d\u1ea3i tia h\u1ed3ng ngo\u1ea1i (b\u01b0\u1edbc s\u00f3ng t\u1eeb 750 \u2013 106<\/sup>\u00a0nm). Do tia h\u1ed3ng ngo\u1ea1i c\u00f3 th\u1ec3 ph\u00e1t nhi\u1ec7t n\u00ean \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng v\u00e0o camera quan s\u00e1t l\u00e0 v\u1eady.<\/p>\n

Camera h\u1ed3ng ngo\u1ea1i \u0111\u01b0\u1ee3c g\u1ecdi v\u1edbi t\u00ean qu\u1ed1c t\u1ebf l\u00e0 IR Camera (Infra-red Camera), c\u00f3 m\u1ed9t c\u1ea3m bi\u1ebfn \u00e1nh s\u00e1ng t\u00ean l\u00e0 Light-sensor ph\u1ee5c v\u1ee5 ch\u1ee9c n\u0103ng t\u1ef1 nh\u1ea3y ch\u1ebf \u0111\u1ed9 quay n\u1ebfu g\u1eb7p \u0111i\u1ec1u ki\u1ec7n m\u00f4i tr\u01b0\u1eddng thi\u1ebfu s\u00e1ng. L\u00fac n\u00e0y camera s\u1ebd quay r\u00f5 nh\u1eefng c\u1ea3nh trong b\u00f3ng t\u1ed1i v\u1edbi h\u1ec7 kh\u00f4ng m\u00e0u, t\u1ee9c l\u00e0 ch\u1ec9 tr\u1eafng v\u00e0 \u0111en.<\/p>\n

\"Camera<\/p>\n

T\u1ea7m xa v\u00e0o h\u1ed3ng ngo\u1ea1i ph\u1ee5 thu\u1ed9c v\u00e0o s\u1ed1 \u0111\u1ec1n v\u00e0 s\u1ed1 LED c\u1ee7a camera. c\u00f3 4 lo\u1ea1i LED t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi t\u1ea7m 4 kho\u1ea3ng c\u00e1ch kh\u00e1c nhau.
\n. IR LED th\u01b0\u1eddng\u00a0 t\u1ea7m xa h\u1ed3ng ngo\u1ea1i \u0111\u01b0\u1ee3c kho\u1ea3ng 15-20m.
\n. IR ARRAY LED t\u1ea7m xa h\u1ed3ng ngo\u1ea1i \u0111\u01b0\u1ee3c kho\u1ea3ng t\u1eeb 30-60m t\u00f9y theo s\u1ed1 b\u00f3ng h\u1ed3ng ngo\u1ea1i.
\n. IR LAZER LED\u00a0\u00a0t\u1ea7m xa h\u1ed3ng ngo\u1ea1i \u0111\u01b0\u1ee3c kho\u1ea3ng t\u1eeb 30-50m t\u00f9y theo b\u00f3ng (ch\u1ebf \u0111\u1ed9 h\u1ed3ng ngo\u1ea1i ph\u00e2n \u0111\u1ec1u kh\u00f4ng b\u1ecb chum 1 g\u00f3c).
\n. IR EX LED h\u1ed3ng ngo\u1ea1i m\u1edbi si\u00eau th\u00f4ng minh th\u00ec theo s\u1ed1 \u0111\u00e8n. Chi\u1ebfu t\u1ed1i \u0111a c\u00f3 th\u1ec3 l\u00ean t\u1edbi 80m.<\/p>\n","protected":false},"excerpt":{"rendered":"

Camera h\u1ed3ng ngo\u1ea1i l\u00e0 m\u1ed9t lo\u1ea1i camera s\u1eed d\u1ee5ng tia c\u00f3 \u00e1nh s\u00e1ng m\u00e0u h\u1ed3ng kh\u00f4ng th\u1ec3 nh\u00ecn th\u1ea5y b\u1eb1ng m\u1eaft th\u01b0\u1eddng. Trong m\u00f4i tr\u01b0\u1eddng thi\u1ebfu s\u00e1ng m\u00e0 m\u1eaft ng\u01b0\u1eddi kh\u00f3 c\u00f3 th\u1ec3 nh\u00ecn th\u1ea5y th\u00ec camera h\u1ed3ng ngo\u1ea1i c\u00f3 th\u1ec3 ghi l\u1ea1i h\u00ecnh \u1ea3nh r\u00f5 r\u00e0ng nh\u1edd \u0111\u00e8n h\u1ed3ng ngo\u1ea1i \u0111\u01b0\u1ee3c k\u00edch ho\u1ea1t. Tia […]<\/p>\n","protected":false},"author":1,"featured_media":9038,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false},"categories":[10],"tags":[],"_links":{"self":[{"href":"https:\/\/phongvu.vn\/cong-nghe\/wp-json\/wp\/v2\/posts\/9007"}],"collection":[{"href":"https:\/\/phongvu.vn\/cong-nghe\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/phongvu.vn\/cong-nghe\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/phongvu.vn\/cong-nghe\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/phongvu.vn\/cong-nghe\/wp-json\/wp\/v2\/comments?post=9007"}],"version-history":[{"count":3,"href":"https:\/\/phongvu.vn\/cong-nghe\/wp-json\/wp\/v2\/posts\/9007\/revisions"}],"predecessor-version":[{"id":9040,"href":"https:\/\/phongvu.vn\/cong-nghe\/wp-json\/wp\/v2\/posts\/9007\/revisions\/9040"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/phongvu.vn\/cong-nghe\/wp-json\/wp\/v2\/media\/9038"}],"wp:attachment":[{"href":"https:\/\/phongvu.vn\/cong-nghe\/wp-json\/wp\/v2\/media?parent=9007"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/phongvu.vn\/cong-nghe\/wp-json\/wp\/v2\/categories?post=9007"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/phongvu.vn\/cong-nghe\/wp-json\/wp\/v2\/tags?post=9007"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}