{"id":56009,"date":"2022-04-19T08:43:52","date_gmt":"2022-04-19T13:43:52","guid":{"rendered":"https:\/\/www.bjultrasonic.com\/pros-and-cons-of-infrared-detectors\/"},"modified":"2025-01-21T07:25:46","modified_gmt":"2025-01-21T12:25:46","slug":"pros-and-cons-of-infrared-detectors","status":"publish","type":"post","link":"https:\/\/www.bjultrasonic.com\/vi\/pros-and-cons-of-infrared-detectors\/","title":{"rendered":"\u01afu v\u00e0 nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a c\u1ea3m bi\u1ebfn h\u1ed3ng ngo\u1ea1i"},"content":{"rendered":"<p>C\u1ea3m bi\u1ebfn h\u1ed3ng ngo\u1ea1i \u0111\u00e3 tr\u1edf th\u00e0nh m\u1ed9t c\u00f4ng ngh\u1ec7 quan tr\u1ecdng trong nhi\u1ec1u \u1ee9ng d\u1ee5ng, t\u1eeb camera an ninh \u0111\u1ebfn thi\u1ebft b\u1ecb y t\u1ebf.  Vi\u1ec7c hi\u1ec3u r\u00f5 \u01b0u v\u00e0 nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a lo\u1ea1i c\u1ea3m bi\u1ebfn n\u00e0y l\u00e0 c\u1ea7n thi\u1ebft \u0111\u1ec3 l\u1ef1a ch\u1ecdn v\u00e0 s\u1eed d\u1ee5ng ch\u00fang m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd ph\u00e2n t\u00edch chi ti\u1ebft nh\u1eefng l\u1ee3i \u00edch v\u00e0 h\u1ea1n ch\u1ebf c\u1ee7a c\u1ea3m bi\u1ebfn h\u1ed3ng ngo\u1ea1i.<\/p>\n<h3>\u01afu \u0111i\u1ec3m c\u1ee7a c\u1ea3m bi\u1ebfn h\u1ed3ng ngo\u1ea1i<\/h3>\n<p>C\u1ea3m bi\u1ebfn h\u1ed3ng ngo\u1ea1i mang l\u1ea1i nhi\u1ec1u l\u1ee3i \u00edch \u0111\u00e1ng k\u1ec3, gi\u00fap ch\u00fang tr\u1edf th\u00e0nh l\u1ef1a ch\u1ecdn l\u00fd t\u01b0\u1edfng trong nhi\u1ec1u tr\u01b0\u1eddng h\u1ee3p.<\/p>\n<ul>\n<li><strong>Kh\u1ea3 n\u0103ng ho\u1ea1t \u0111\u1ed9ng trong b\u00f3ng t\u1ed1i:<\/strong>  M\u1ed9t trong nh\u1eefng \u01b0u \u0111i\u1ec3m n\u1ed5i b\u1eadt nh\u1ea5t c\u1ee7a c\u1ea3m bi\u1ebfn h\u1ed3ng ngo\u1ea1i l\u00e0 kh\u1ea3 n\u0103ng ph\u00e1t hi\u1ec7n v\u1eadt th\u1ec3 trong \u0111i\u1ec1u ki\u1ec7n \u00e1nh s\u00e1ng y\u1ebfu ho\u1eb7c ho\u00e0n to\u00e0n t\u1ed1i.  \u0110i\u1ec1u n\u00e0y l\u00e0m cho ch\u00fang tr\u1edf n\u00ean l\u00fd t\u01b0\u1edfng cho c\u00e1c \u1ee9ng d\u1ee5ng an ninh v\u00e0 gi\u00e1m s\u00e1t.<\/li>\n<li><strong>\u0110\u1ed9 nh\u1ea1y cao:<\/strong> C\u1ea3m bi\u1ebfn h\u1ed3ng ngo\u1ea1i c\u00f3 \u0111\u1ed9 nh\u1ea1y cao v\u1edbi b\u1ee9c x\u1ea1 nhi\u1ec7t, cho ph\u00e9p ch\u00fang ph\u00e1t hi\u1ec7n nh\u1eefng thay \u0111\u1ed5i nhi\u1ec7t \u0111\u1ed9 nh\u1ecf nh\u1ea5t.  T\u00ednh n\u0103ng n\u00e0y r\u1ea5t h\u1eefu \u00edch trong c\u00e1c \u1ee9ng d\u1ee5ng nh\u01b0 ki\u1ec3m tra thi\u1ebft b\u1ecb \u0111i\u1ec7n, ph\u00e1t hi\u1ec7n r\u00f2 r\u1ec9 nhi\u1ec7t v\u00e0 ch\u1ea9n \u0111o\u00e1n y t\u1ebf.<\/li>\n<li><strong>Chi ph\u00ed th\u1ea5p:<\/strong> So v\u1edbi c\u00e1c c\u00f4ng ngh\u1ec7 c\u1ea3m bi\u1ebfn kh\u00e1c, c\u1ea3m bi\u1ebfn h\u1ed3ng ngo\u1ea1i th\u01b0\u1eddng c\u00f3 chi ph\u00ed s\u1ea3n xu\u1ea5t th\u1ea5p h\u01a1n, gi\u00fap ch\u00fang tr\u1edf n\u00ean d\u1ec5 ti\u1ebfp c\u1eadn v\u00e0 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i.<\/li>\n<li><strong>K\u00edch th\u01b0\u1edbc nh\u1ecf g\u1ecdn:<\/strong> C\u1ea3m bi\u1ebfn h\u1ed3ng ngo\u1ea1i c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ch\u1ebf t\u1ea1o v\u1edbi k\u00edch th\u01b0\u1edbc nh\u1ecf g\u1ecdn, ph\u00f9 h\u1ee3p cho vi\u1ec7c t\u00edch h\u1ee3p v\u00e0o c\u00e1c thi\u1ebft b\u1ecb di \u0111\u1ed9ng v\u00e0 h\u1ec7 th\u1ed1ng nh\u00fang.<\/li>\n<li><strong>Kh\u00f4ng ti\u1ebfp x\u00fac:<\/strong> Vi\u1ec7c ph\u00e1t hi\u1ec7n v\u1eadt th\u1ec3 kh\u00f4ng c\u1ea7n ti\u1ebfp x\u00fac tr\u1ef1c ti\u1ebfp gi\u00fap t\u0103ng tu\u1ed5i th\u1ecd c\u1ee7a c\u1ea3m bi\u1ebfn v\u00e0 an to\u00e0n h\u01a1n trong m\u1ed9t s\u1ed1 \u1ee9ng d\u1ee5ng.<\/li>\n<\/ul>\n<table class=\"table table-striped table-bordered\">\n<thead>\n<tr>\n<th>\u01afu \u0111i\u1ec3m<\/th>\n<th>M\u00f4 t\u1ea3<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Ho\u1ea1t \u0111\u1ed9ng trong b\u00f3ng t\u1ed1i<\/td>\n<td>Ph\u00e1t hi\u1ec7n v\u1eadt th\u1ec3 trong \u0111i\u1ec1u ki\u1ec7n thi\u1ebfu s\u00e1ng<\/td>\n<\/tr>\n<tr>\n<td>\u0110\u1ed9 nh\u1ea1y cao<\/td>\n<td>Ph\u00e1t hi\u1ec7n nh\u1eefng thay \u0111\u1ed5i nhi\u1ec7t \u0111\u1ed9 nh\u1ecf<\/td>\n<\/tr>\n<tr>\n<td>Chi ph\u00ed th\u1ea5p<\/td>\n<td>Gi\u00e1 th\u00e0nh s\u1ea3n xu\u1ea5t th\u1ea5p<\/td>\n<\/tr>\n<tr>\n<td>K\u00edch th\u01b0\u1edbc nh\u1ecf g\u1ecdn<\/td>\n<td>D\u1ec5 d\u00e0ng t\u00edch h\u1ee3p v\u00e0o c\u00e1c thi\u1ebft b\u1ecb kh\u00e1c<\/td>\n<\/tr>\n<tr>\n<td>Kh\u00f4ng ti\u1ebfp x\u00fac<\/td>\n<td>T\u0103ng tu\u1ed5i th\u1ecd v\u00e0 an to\u00e0n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>Nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a c\u1ea3m bi\u1ebfn h\u1ed3ng ngo\u1ea1i<\/h3>\n<p>M\u1eb7c d\u00f9 c\u00f3 nhi\u1ec1u \u01b0u \u0111i\u1ec3m, c\u1ea3m bi\u1ebfn h\u1ed3ng ngo\u1ea1i c\u0169ng t\u1ed3n t\u1ea1i m\u1ed9t s\u1ed1 h\u1ea1n ch\u1ebf c\u1ea7n \u0111\u01b0\u1ee3c xem x\u00e9t.<\/p>\n<ul>\n<li><strong>\u1ea2nh h\u01b0\u1edfng b\u1edfi \u0111i\u1ec1u ki\u1ec7n m\u00f4i tr\u01b0\u1eddng:<\/strong>  Hi\u1ec7u su\u1ea5t c\u1ee7a c\u1ea3m bi\u1ebfn h\u1ed3ng ngo\u1ea1i c\u00f3 th\u1ec3 b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi c\u00e1c y\u1ebfu t\u1ed1 m\u00f4i tr\u01b0\u1eddng nh\u01b0 nhi\u1ec7t \u0111\u1ed9, \u0111\u1ed9 \u1ea9m v\u00e0 b\u1ee5i b\u1ea9n. \u00c1nh s\u00e1ng m\u1eb7t tr\u1eddi tr\u1ef1c ti\u1ebfp c\u0169ng c\u00f3 th\u1ec3 g\u00e2y nhi\u1ec5u cho ho\u1ea1t \u0111\u1ed9ng c\u1ee7a c\u1ea3m bi\u1ebfn.<\/li>\n<li><strong>Ph\u1ea1m vi ho\u1ea1t \u0111\u1ed9ng h\u1ea1n ch\u1ebf:<\/strong> So v\u1edbi m\u1ed9t s\u1ed1 c\u00f4ng ngh\u1ec7 c\u1ea3m bi\u1ebfn kh\u00e1c, ph\u1ea1m vi ho\u1ea1t \u0111\u1ed9ng c\u1ee7a c\u1ea3m bi\u1ebfn h\u1ed3ng ngo\u1ea1i c\u00f3 th\u1ec3 b\u1ecb h\u1ea1n ch\u1ebf, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong m\u00f4i tr\u01b0\u1eddng c\u00f3 nhi\u1ec1u v\u1eadt c\u1ea3n.<\/li>\n<li><strong>\u0110\u1ed9 ch\u00ednh x\u00e1c:<\/strong> \u0110\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a c\u1ea3m bi\u1ebfn h\u1ed3ng ngo\u1ea1i c\u00f3 th\u1ec3 b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi c\u00e1c y\u1ebfu t\u1ed1 nh\u01b0 kho\u1ea3ng c\u00e1ch \u0111\u1ebfn v\u1eadt th\u1ec3 v\u00e0 s\u1ef1 thay \u0111\u1ed5i nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng.<\/li>\n<li><strong>G\u00f3c nh\u00ecn:<\/strong>  G\u00f3c nh\u00ecn c\u1ee7a c\u1ea3m bi\u1ebfn h\u1ed3ng ngo\u1ea1i c\u00f3 th\u1ec3 b\u1ecb h\u1ea1n ch\u1ebf, \u0111\u00f2i h\u1ecfi vi\u1ec7c \u0111\u1ecbnh v\u1ecb c\u1ea9n th\u1eadn \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o hi\u1ec7u qu\u1ea3 ho\u1ea1t \u0111\u1ed9ng.<\/li>\n<\/ul>\n<table class=\"table table-striped table-bordered\">\n<thead>\n<tr>\n<th>Nh\u01b0\u1ee3c \u0111i\u1ec3m<\/th>\n<th>M\u00f4 t\u1ea3<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u1ea2nh h\u01b0\u1edfng b\u1edfi m\u00f4i tr\u01b0\u1eddng<\/td>\n<td>\u0110\u1ed9 \u1ea9m, nhi\u1ec7t \u0111\u1ed9, b\u1ee5i b\u1ea9n c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u su\u1ea5t<\/td>\n<\/tr>\n<tr>\n<td>Ph\u1ea1m vi ho\u1ea1t \u0111\u1ed9ng h\u1ea1n ch\u1ebf<\/td>\n<td>Kho\u1ea3ng c\u00e1ch ph\u00e1t hi\u1ec7n c\u00f3 th\u1ec3 b\u1ecb gi\u1edbi h\u1ea1n<\/td>\n<\/tr>\n<tr>\n<td>\u0110\u1ed9 ch\u00ednh x\u00e1c<\/td>\n<td>C\u00f3 th\u1ec3 b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi kho\u1ea3ng c\u00e1ch v\u00e0 nhi\u1ec7t \u0111\u1ed9<\/td>\n<\/tr>\n<tr>\n<td>G\u00f3c nh\u00ecn<\/td>\n<td>G\u00f3c nh\u00ecn h\u1eb9p \u0111\u00f2i h\u1ecfi vi\u1ec7c l\u1eafp \u0111\u1eb7t ch\u00ednh x\u00e1c<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>T\u00f3m l\u1ea1i, c\u1ea3m bi\u1ebfn h\u1ed3ng ngo\u1ea1i l\u00e0 m\u1ed9t c\u00f4ng ngh\u1ec7 h\u1eefu \u00edch v\u1edbi nhi\u1ec1u \u1ee9ng d\u1ee5ng ti\u1ec1m n\u0103ng.  Tuy nhi\u00ean, vi\u1ec7c hi\u1ec3u r\u00f5 c\u1ea3 \u01b0u \u0111i\u1ec3m v\u00e0 nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a ch\u00fang l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 l\u1ef1a ch\u1ecdn v\u00e0 s\u1eed d\u1ee5ng ch\u00fang m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3, \u0111\u1ea3m b\u1ea3o \u0111\u00e1p \u1ee9ng \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u c\u1ee7a t\u1eebng \u1ee9ng d\u1ee5ng c\u1ee5 th\u1ec3.  Vi\u1ec7c c\u00e2n nh\u1eafc k\u1ef9 l\u01b0\u1ee1ng gi\u1eefa l\u1ee3i \u00edch v\u00e0 h\u1ea1n ch\u1ebf s\u1ebd gi\u00fap ng\u01b0\u1eddi d\u00f9ng \u0111\u01b0a ra quy\u1ebft \u0111\u1ecbnh \u0111\u00fang \u0111\u1eafn v\u00e0 t\u1ed1i \u01b0u h\u00f3a hi\u1ec7u su\u1ea5t c\u1ee7a h\u1ec7 th\u1ed1ng.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>C\u1ea3m bi\u1ebfn h\u1ed3ng ngo\u1ea1i \u0111\u00e3 tr\u1edf th\u00e0nh m\u1ed9t c\u00f4ng ngh\u1ec7 quan tr\u1ecdng trong nhi\u1ec1u \u1ee9ng d\u1ee5ng, t\u1eeb camera an ninh \u0111\u1ebfn thi\u1ebft b\u1ecb y t\u1ebf. Vi\u1ec7c hi\u1ec3u r\u00f5 \u01b0u v\u00e0 nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a lo\u1ea1i c\u1ea3m bi\u1ebfn n\u00e0y l\u00e0 c\u1ea7n thi\u1ebft \u0111\u1ec3 l\u1ef1a ch\u1ecdn v\u00e0 s\u1eed d\u1ee5ng ch\u00fang m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd<\/p>\n","protected":false},"author":1,"featured_media":5766,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6406],"tags":[],"class_list":["post-56009","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","prodpage-classic"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/posts\/56009","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/comments?post=56009"}],"version-history":[{"count":0,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/posts\/56009\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/media\/5766"}],"wp:attachment":[{"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/media?parent=56009"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/categories?post=56009"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/vi\/wp-json\/wp\/v2\/tags?post=56009"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}