{"id":571,"date":"2021-08-21T11:27:01","date_gmt":"2021-08-21T11:27:01","guid":{"rendered":"https:\/\/csiag.eu\/?p=571"},"modified":"2023-01-21T16:43:01","modified_gmt":"2023-01-21T16:43:01","slug":"video-dohled","status":"publish","type":"post","link":"https:\/\/csiag.eu\/cs\/blog\/2021\/08\/21\/video-ueberwachung\/","title":{"rendered":"Videodohled"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_85 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Obsah<\/p>\n<span class=\"ez-toc-title-toggle\"><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/csiag.eu\/cs\/blog\/2021\/08\/21\/video-ueberwachung\/#Kamera-Modelle\" >Modely fotoapar\u00e1t\u016f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/csiag.eu\/cs\/blog\/2021\/08\/21\/video-ueberwachung\/#Das_richtige_Objektiv\" >Spr\u00e1vn\u00fd objektiv<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/csiag.eu\/cs\/blog\/2021\/08\/21\/video-ueberwachung\/#Empfehlenswerte_Dome-Kameras\" >Doporu\u010den\u00e9 (kopulovit\u00e9) kamery<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/csiag.eu\/cs\/blog\/2021\/08\/21\/video-ueberwachung\/#IR-Zusatzscheinwerfer\" >IR pomocn\u00fd reflektor<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/csiag.eu\/cs\/blog\/2021\/08\/21\/video-ueberwachung\/#Kamera-Montage_Verkabelung\" >Mont\u00e1\u017e kamery \/ kabel\u00e1\u017e<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/csiag.eu\/cs\/blog\/2021\/08\/21\/video-ueberwachung\/#NVR\" >NVR<\/a><\/li><\/ul><\/nav><\/div>\n<span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">Doba \u010dten\u00ed<\/span> <span class=\"rt-time\"> 5<\/span> <span class=\"rt-label rt-postfix\">minuty<\/span><\/span>\n<p class=\"wp-block-paragraph\">S rostouc\u00edm po\u010dtem vloup\u00e1n\u00ed, kr\u00e1de\u017e\u00ed a dal\u0161\u00edch trestn\u00fdch \u010din\u016f roste v\u00fdznam kamerov\u00e9ho syst\u00e9mu. Je rozumn\u00e9 vybavit sv\u016fj d\u016fm a dv\u016fr videokamerami. Jednak jako odstra\u0161uj\u00edc\u00ed prost\u0159edek, jednak proto, abyste mohli v p\u0159\u00edpad\u011b pot\u0159eby identifikovat naru\u0161itele.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Po\u010det nab\u00eddek je t\u00e9m\u011b\u0159 nezvl\u00e1dnuteln\u00fd. Ceny se pohybuj\u00ed od dvoucifern\u00fdch a\u017e po \u010dty\u0159cifern\u00e9 \u010d\u00e1stky v eurech. Rozd\u00edly v kvalit\u011b jsou odpov\u00eddaj\u00edc\u00edm zp\u016fsobem velk\u00e9.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Jako ka\u017ed\u00fd z\u00e1jemce m\u00e1te zpo\u010d\u00e1tku tendenci up\u0159ednost\u0148ovat levn\u011bj\u0161\u00ed nab\u00eddky. Jakmile v\u0161ak dojde na po\u0159izov\u00e1n\u00ed pou\u017eiteln\u00fdch sn\u00edmk\u016f v noci, odd\u011bl\u00ed se zrno od plev.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pod trojcifernou \u010d\u00e1stkou v eurech je v\u00fdnosnost z hlediska p\u0159ijateln\u00e9ho pom\u011bru ceny a v\u00fdkonu miziv\u00e1. Mezi 130 ... 280 eur v\u0161ak najdete mimo\u0159\u00e1dn\u011b dobr\u00e9 v\u00fdrobky, zejm\u00e9na ty od spole\u010dnosti Hikvision, pravd\u011bpodobn\u011b nejv\u011bt\u0161\u00edho v\u00fdrobce kamer, kter\u00e9 se vyr\u00e1b\u011bj\u00ed ve velmi velk\u00fdch mno\u017estv\u00edch a jsou obl\u00edben\u00e9 pro pou\u017eit\u00ed v pr\u016fmyslov\u00e9m, ve\u0159ejn\u00e9m i soukrom\u00e9m prost\u0159ed\u00ed.<br><br><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"Kamera-Modelle\"><span class=\"ez-toc-section\" id=\"Kamera-Modelle\"><\/span>Modely fotoapar\u00e1t\u016f<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Nejprve je t\u0159eba rozli\u0161ovat mezi tzv. kulov\u00fdmi a kopulov\u00fdmi kamerami.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">U kulov\u00e9 kamery je sm\u011br z\u00e1b\u011bru snadno rozpoznateln\u00fd i z v\u011bt\u0161\u00ed vzd\u00e1lenosti. U kopulov\u00e9 kamery lze orientaci rozpoznat pouze z bl\u00edzka. V druh\u00e9m p\u0159\u00edpad\u011b je kamera um\u00edst\u011bna pod sklen\u011bnou kopul\u00ed, v n\u00ed\u017e lze kameru - ve verzi PTZ - ot\u00e1\u010det o 355 stup\u0148\u016f a nakl\u00e1p\u011bt o p\u0159ibli\u017en\u011b 75 stup\u0148\u016f.<br>Vzhledem k \u010dern\u00e9 barv\u011b kamery je pod sklen\u011bnou kopul\u00ed sotva viditeln\u00e1, nato\u017e pak plocha, kterou pokr\u00fdv\u00e1.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ob\u011b proveden\u00ed maj\u00ed spole\u010dn\u00e9 to, \u017ee mohou b\u00fdt vybavena pevn\u00fdm ohniskem, motorizovan\u00fdm zoomem a IR diodami (no\u010dn\u00ed vid\u011bn\u00ed), WLAN, p\u0159ipojen\u00edm LAN a POE (Power Over Ethernet). V p\u0159\u00edpad\u011b verze POE nen\u00ed pro nap\u00e1jen\u00ed pot\u0159eba samostatn\u00e1 nap\u00e1jec\u00ed jednotka, pokud p\u0159ep\u00edna\u010d poskytuje POE. Tato varianta je nejlep\u0161\u00ed volbou.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Od s\u00edt\u011b WLAN byste se m\u011bli distancovat. K vy\u0159azen\u00ed kamer z provozu sta\u010d\u00ed jednoduch\u00e9 vys\u00edla\u010de WLAN. Bez \u0159\u00e1dn\u00e9 kabel\u00e1\u017ee CAT.6 a v\u00fdkonn\u00fdch, spravovateln\u00fdch p\u0159ep\u00edna\u010d\u016f nem\u00e1 seri\u00f3zn\u00ed videodohled smysl!<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Zda je funkce zoomu nutn\u00e1, z\u00e1vis\u00ed na aplikaci. Pokud je um\u00edst\u011bn\u00ed kamery d\u00e1le od sledovan\u00e9ho prostoru, doporu\u010duje se kamera s funkc\u00ed zoomu a dobr\u00fdm (!) infra\u010derven\u00fdm osv\u011btlen\u00edm, p\u0159\u00edpadn\u011b tak\u00e9 s pou\u017eit\u00edm p\u0159\u00eddavn\u00fdch reflektor\u016f.<br>Pokud jde o funkci zoomu, je t\u0159eba rozli\u0161ovat mezi digit\u00e1ln\u00edm a optick\u00fdm zoomem; p\u0159ednost m\u00e1 optick\u00fd zoom. U digit\u00e1ln\u00edho zoomu je velmi rychle patrn\u00e1 pixelizace.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pokud jsou sn\u00edmky trvale sledov\u00e1ny a je vy\u017eadov\u00e1no ru\u010dn\u00ed sledov\u00e1n\u00ed objekt\u016f, je vhodn\u011bj\u0161\u00ed pou\u017e\u00edt motorizovanou funkci ot\u00e1\u010den\u00ed\/nakl\u00e1n\u011bn\u00ed nebo zoomu.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Kamery, kter\u00e9 automaticky sleduj\u00ed rozpoznan\u00e9 objekty, se pohybuj\u00ed v \u0159\u00e1du \u010dty\u0159m\u00edstn\u00fdch eur. Pou\u017e\u00edvaj\u00ed se ve ve\u0159ejn\u00fdch a pr\u016fmyslov\u00fdch aplika\u010dn\u00edch sc\u00e9n\u00e1\u0159\u00edch.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ozna\u010den\u00ed PTZ (Pan Tilt Zoom) znamen\u00e1, \u017ee kameru lze horizont\u00e1ln\u011b a vertik\u00e1ln\u011b ot\u00e1\u010det a \u017ee objektiv lze zoomovat.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pokud fotoapar\u00e1t poskytuje zvukovou funkci, je t\u0159eba rozli\u0161it, zda je zvuk jednosm\u011brn\u00fd (z\u00e1znam zvuku) nebo obousm\u011brn\u00fd (z\u00e1znam a p\u0159ehr\u00e1v\u00e1n\u00ed zvuku).<br><br><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Das_richtige_Objektiv\"><\/span>Spr\u00e1vn\u00fd objektiv<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">V z\u00e1vislosti na zam\u00fd\u0161len\u00e9m pou\u017eit\u00ed a rozpo\u010dtu si m\u016f\u017eete vybrat z r\u016fzn\u00fdch konfigurac\u00ed objektiv\u016f. Co je t\u0159eba vz\u00edt v \u00favahu, je vysv\u011btleno zde.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Stejn\u011b jako ve fotografii je intenzita sv\u011btla obzvl\u00e1\u0161t\u011b d\u016fle\u017eit\u00e1, zejm\u00e9na s ohledem na no\u010dn\u00ed vid\u011bn\u00ed. \u010c\u00edm men\u0161\u00ed je tato hodnota (nap\u0159. f = 1,2), \u010d\u00edm v\u011bt\u0161\u00ed jsou objektivy, t\u00edm v\u00edce sv\u011btla je k dispozici pro zpracov\u00e1n\u00ed obrazov\u00fdm sn\u00edma\u010dem.<br>Sv\u011bteln\u00e1 citlivost sn\u00edma\u010de se ud\u00e1v\u00e1 v luxech a obvykle je 0,001 ... 0 lux\u016f.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ohniskov\u00e1 vzd\u00e1lenost ur\u010duje sn\u00edmanou oblast. K ur\u010den\u00ed vhodn\u00e9 ohniskov\u00e9 vzd\u00e1lenosti nejl\u00e9pe poslou\u017e\u00ed n\u00e1kres. B\u011b\u017en\u00e9 pevn\u00e9 ohniskov\u00e9 vzd\u00e1lenosti jsou 2,8 mm se zorn\u00fdm polem 80 ... 100 stup\u0148\u016f.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u010c\u00edm del\u0161\u00ed je ohniskov\u00e1 vzd\u00e1lenost (u objektiv\u016f se zoomem), t\u00edm men\u0161\u00ed je zorn\u00e9 pole (12 mm -&gt; 31,6 stupn\u011b), \u010d\u00edm krat\u0161\u00ed je ohniskov\u00e1 vzd\u00e1lenost, t\u00edm \u0161ir\u0161\u00ed je zorn\u00e9 pole (2,8 mm -&gt; 96,7 stupn\u011b).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Vzd\u00e1lenost mezi dv\u011bma kamerami by m\u011bla b\u00fdt takov\u00e1, aby pozorovan\u00fd objekt nebyl vzd\u00e1len v\u00edce ne\u017e 5 metr\u016f. D\u016fvod je jednoduch\u00fd: obli\u010dej nebo pozn\u00e1vac\u00ed zna\u010dku by m\u011blo b\u00fdt mo\u017en\u00e9 zv\u011bt\u0161it - i v noci - do t\u00e9 m\u00edry, aby z\u016fstaly jasn\u011b rozpoznateln\u00e9, ani\u017e by se rozmazaly. Vzd\u00e1lenost 10 metr\u016f je ve dne je\u0161t\u011b mo\u017en\u00e1, ale v noci u\u017e ne. Bez p\u0159\u00eddavn\u00fdch sv\u011btlomet\u016f je to rozhodn\u011b limit.<br><br><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Empfehlenswerte_Dome-Kameras\"><\/span>Doporu\u010den\u00e9 (kopulovit\u00e9) kamery<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><a href=\"https:\/\/www.amazon.de\/gp\/product\/B0722Y959N\/ref=as_li_tl?ie=UTF8&amp;tag=csiag-21&amp;camp=1638&amp;creative=6742&amp;linkCode=as2&amp;creativeASIN=B0722Y959N&amp;linkId=3296070acfebccc2f65a4d4cf677628c\" target=\"_blank\" rel=\"noreferrer noopener\">HIKVISION 2CD2155FWD-I<\/a><\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pevn\u00e9 zaost\u0159en\u00ed<br>- 2,8 mm 80,0\u00b0<br>- 4,0 mm 63,5\u00b0<br>- 8,0 mm 33,0\u00b0<br>- 12,0 mm 16,0\u00b0<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Rozli\u0161en\u00ed 20 \/ 25 fps 2560 \u00d7 1920 px<br><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.amazon.de\/gp\/product\/B07MLJJ357\/ref=as_li_tl?ie=UTF8&amp;tag=csiag-21&amp;camp=1638&amp;creative=6742&amp;linkCode=as2&amp;creativeASIN=B07MLJJ357&amp;linkId=735ba5d3076d08d4d8de3aea45e93fd1\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>HIKVISION DS-2DE2A404IW-EN3<\/strong> (PTZ)<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Variabiln\u00ed ohniskov\u00e1 vzd\u00e1lenost 2,8 ... 12 mm, opt. zoom, 100\u00b0 ... 30\u00b0<br>Rozli\u0161en\u00ed 2560 x 1440 px<br><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><a href=\"https:\/\/www.amazon.de\/gp\/product\/B07MLJJ357\/ref=as_li_tl?ie=UTF8&amp;tag=csiag-21&amp;camp=1638&amp;creative=6742&amp;linkCode=as2&amp;creativeASIN=B07MLJJ357&amp;linkId=62ff016e4449fee4fcfacd8489a52f49\" target=\"_blank\" rel=\"noreferrer noopener\">H<\/a><\/strong><a href=\"https:\/\/www.amazon.de\/gp\/product\/B07MLJJ357\/ref=as_li_tl?ie=UTF8&amp;tag=csiag-21&amp;camp=1638&amp;creative=6742&amp;linkCode=as2&amp;creativeASIN=B07MLJJ357&amp;linkId=62ff016e4449fee4fcfacd8489a52f49\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>IKVISION DS-2DE3A404IW-EN\/W<\/strong> (PTZ, obousm\u011brn\u00fd zvuk)<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Variabiln\u00ed ohniskov\u00e1 vzd\u00e1lenost 2,8 ... 12 mm, optick\u00fd zoom, 96,7\u00b0 ... 31,6\u00b0<br><meta charset=\"utf-8\">Rozli\u0161en\u00ed 20 \/ 25 fps 2560 \u00d7 1440 px<br><br><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"IR-Zusatzscheinwerfer\"><\/span>IR pomocn\u00fd reflektor<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Instalace pomocn\u00fdch infra\u010derven\u00fdch reflektor\u016f vy\u017eaduje nap\u00e1jen\u00ed, obvykle 230 V, vz\u00e1cn\u011bji 12 \/ 24 V DC.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Reflektory nesm\u00ed zakr\u00fdvat objektiv fotoapar\u00e1tu, jinak by byl osln\u011bn, a tedy zast\u00edn\u011bn.<br>Je tak\u00e9 nutn\u00e9 zkontrolovat, zda je kamera citliv\u00e1 na infra\u010derven\u00e9 z\u00e1\u0159en\u00ed ve viditeln\u00e9m nebo neviditeln\u00e9m rozsahu. Podle toho je t\u0159eba vybrat dal\u0161\u00ed reflektory.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V cenov\u00e9m segmentu do p\u0159ibli\u017en\u011b 500 eur se obvykle instaluj\u00ed IR diody, kter\u00e9 vyza\u0159uj\u00ed viditeln\u00e9 IR sv\u011btlo (tmav\u011b \u010derven\u00e9 850 nm). Kamery, kter\u00e9 maj\u00ed IR diody v neviditeln\u00e9m IR rozsahu (940 nm), se pohybuj\u00ed nad touto cenovou hranic\u00ed. To plat\u00ed i pro odpov\u00eddaj\u00edc\u00ed IR reflektory.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Spole\u010dnost Raytec nab\u00edz\u00ed velk\u00fd v\u00fdb\u011br velmi dobr\u00fdch infra\u010derven\u00fdch reflektor\u016f s vlnovou d\u00e9lkou 850\/940 nm v cenov\u00e9m segmentu kolem 250 ... 2 000 eur za kus (nap\u0159. s viditeln\u00fdm IR sv\u011btlem 850 nm <a href=\"https:\/\/www.amazon.de\/gp\/product\/B008ZD8QJG\/ref=as_li_tl?ie=UTF8&amp;tag=csiag-21&amp;camp=1638&amp;creative=6742&amp;linkCode=as2&amp;creativeASIN=B008ZD8QJG&amp;linkId=32ce84f01f2278c7d732e4448cb67971\" target=\"_blank\" rel=\"noreferrer noopener\">RM100 PLT-AI-120<\/a>).<br>Pom\u011brn\u011b vysok\u00e1 cena je zp\u016fsobena v\u00fdhradn\u00edm pou\u017eit\u00edm vybran\u00fdch infra\u010derven\u00fdch diod, vynikaj\u00edc\u00edm odvodem tepla a d\u016fmyslnou energetickou koncepc\u00ed, co\u017e vede k velmi dlouh\u00e9 \u017eivotnosti.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u00dadajn\u011b levn\u00e9 reflektory ve viditeln\u00e9m infra\u010derven\u00e9m rozsahu se pohybuj\u00ed v \u0159\u00e1du dvou nebo t\u0159\u00edm\u00edstn\u00fdch eur. N\u011bkter\u00e9 z nich v\u0161ak maj\u00ed IR diody, kter\u00e9 b\u011bhem kr\u00e1tk\u00e9 doby sel\u017eou, a tak\u00e9 velmi nehomogenn\u00ed osv\u011btlen\u00ed, proto\u017ee nemaj\u00ed st\u00e1l\u00fd zdroj nap\u00e1jen\u00ed ani solidn\u00ed odvod tepla.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Od \u00fadajn\u011b levn\u00fdch nab\u00eddek byste si m\u011bli udr\u017eet odstup. Pokud kupujete levn\u011b, kupujete dvakr\u00e1t, a tedy dr\u00e1\u017e.<br><br><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Kamera-Montage_Verkabelung\"><\/span>Mont\u00e1\u017e kamery \/ kabel\u00e1\u017e<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">V soukrom\u00fdch domech se kamery obvykle montuj\u00ed pod okap, aby byly chr\u00e1n\u011bny p\u0159ed pov\u011btrnostn\u00edmi vlivy. Kamery pro venkovn\u00ed instalaci jsou obvykle konstruov\u00e1ny v souladu s normou IP65, tj. mohou b\u00fdt vystaveny de\u0161ti nebo sn\u011bhu.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pokud chcete sledovat budovu \u010dtvercov\u00e9ho, obd\u00e9ln\u00edkov\u00e9ho nebo L-ov\u00e9ho tvaru, budete pot\u0159ebovat osm kamer: dv\u011b v ka\u017ed\u00e9m rohu budovy. Dv\u011b kamery tak zaznamen\u00e1vaj\u00ed v\u017edy jednoho n\u00e1v\u0161t\u011bvn\u00edka. Jedna z nich tedy bude v\u017edy zaznamen\u00e1vat obli\u010dej.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Kabely LAN by pokud mo\u017eno nem\u011bly b\u00fdt pokl\u00e1d\u00e1ny jako instala\u010dn\u00ed kabely, ale ve form\u011b p\u0159edem smontovan\u00fdch kabel\u016f. Jednak je to cenov\u011b v\u00fdhodn\u011bj\u0161\u00ed, proto\u017ee nejsou pot\u0159eba \u017e\u00e1dn\u00e9 rozbo\u010dovac\u00ed krabice, jednak se t\u00edm zamez\u00ed zdroj\u016fm chyb, pokud jde o kontakty svorek, kter\u00e9 je t\u0159eba prov\u00e9st pomoc\u00ed instala\u010dn\u00edho n\u00e1stroje, a tak\u00e9 se u\u0161et\u0159\u00ed p\u0159\u00edslu\u0161n\u00fd pracovn\u00ed \u010das.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">S osmi kamerami pot\u0159ebujete <a href=\"https:\/\/www.amazon.de\/gp\/product\/B01G55FYU4\/ref=as_li_tl?ie=UTF8&amp;tag=csiag-21&amp;camp=1638&amp;creative=6742&amp;linkCode=as2&amp;creativeASIN=B01G55FYU4&amp;linkId=1635b0846f4d570eeebc242e91962f61\" target=\"_blank\" rel=\"noreferrer noopener\">10portov\u00fd p\u0159ep\u00edna\u010d<\/a>osm p\u0159ipojen\u00ed pro kamery a jedno pro odchoz\u00ed linku do sm\u011brova\u010de nebo s\u00ed\u0165ov\u00e9ho videorekord\u00e9ru (NVR).<br>Jednoduch\u00fdm p\u0159ep\u00edna\u010d\u016fm je t\u0159eba se vyhnout, proto\u017ee datov\u00fd tok ze 16 kamer s vysok\u00fdm rozli\u0161en\u00edm je zna\u010dn\u00fd a rychle p\u0159ekro\u010d\u00ed v\u00fdkonnostn\u00ed limity \"levn\u00fdch\" p\u0159ep\u00edna\u010d\u016f.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Samoz\u0159ejm\u011b je zapot\u0159eb\u00ed nap\u00e1jec\u00ed veden\u00ed 230 V se z\u00e1suvkou pro vyp\u00edna\u010d, kter\u00e9 lze v p\u0159\u00edpad\u011b pot\u0159eby instalovat centr\u00e1ln\u011b ve st\u0159e\u0161n\u00edm p\u0159\u00edst\u0159e\u0161ku.<br><br><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"NVR\"><\/span>NVR<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">NVR nab\u00edz\u00ed mo\u017enost ukl\u00e1dat videostreamy z kamer po del\u0161\u00ed dobu. D\u00e9lka z\u00e1znamu z\u00e1vis\u00ed na kapacit\u011b instalovan\u00fdch pevn\u00fdch disk\u016f. S \u00falo\u017en\u00fdm prostorem p\u0159ibli\u017en\u011b 8 TB (terabajt\u016f) lze v re\u017eimu vysok\u00e9ho rozli\u0161en\u00ed zaznamen\u00e1vat a\u017e osm t\u00fddn\u016f videomateri\u00e1lu ze 16 kamer (nap\u0159. za\u0159\u00edzen\u00ed NVR <a href=\"https:\/\/www.amazon.de\/gp\/product\/B01EQD427I\/ref=as_li_tl?ie=UTF8&amp;tag=csiag-21&amp;camp=1638&amp;creative=6742&amp;linkCode=as2&amp;creativeASIN=B01EQD427I&amp;linkId=17c7ea60f3445a4a11185b93e11619f9\" target=\"_blank\" rel=\"noreferrer noopener\">Hikvision DS-7716NI-E4-16P<\/a>).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">NVR se obvykle dod\u00e1v\u00e1 bez pevn\u00fdch disk\u016f. Instalace pevn\u00fdch disk\u016f je pro neodborn\u00edky pom\u011brn\u011b snadn\u00e1. Jedin\u00e9, co je t\u0159eba p\u0159i v\u00fdb\u011bru zohlednit, jsou fyzick\u00e9 rozm\u011bry pevn\u00fdch disk\u016f a maxim\u00e1ln\u00ed podporovan\u00e1 velikost pam\u011bti \u0159adi\u010de v TB.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pevn\u00e9 disky vhodn\u00e9 pro nep\u0159etr\u017eit\u00fd provoz by m\u011bly b\u00fdt certifikov\u00e1ny pro pou\u017eit\u00ed v syst\u00e9mech NAS (Network Attached Storage), nap\u0159. \u0159ada <a href=\"https:\/\/www.amazon.de\/gp\/product\/B077S24WW4\/ref=as_li_tl?ie=UTF8&amp;tag=csiag-21&amp;camp=1638&amp;creative=6742&amp;linkCode=as2&amp;creativeASIN=B077S24WW4&amp;linkId=2aaba71c6c4b6760ee4710b387859bdf\" target=\"_blank\" rel=\"noreferrer noopener\">\u010cerven\u00e1 od Western Digital s 8 TB<\/a> kapacitu. Jejich st\u0159edn\u00ed doba mezi poruchami (MTBF) je p\u0159ibli\u017en\u011b dvakr\u00e1t del\u0161\u00ed ne\u017e u b\u011b\u017en\u00fdch pevn\u00fdch disk\u016f, konkr\u00e9tn\u011b 1,2 milionu hodin. Krom\u011b toho by m\u011bla b\u00fdt z\u00e1ru\u010dn\u00ed doba v\u00fdrobce minim\u00e1ln\u011b 5 let.<br><br><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>","protected":false},"excerpt":{"rendered":"<p><span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">Doba \u010dten\u00ed<\/span> <span class=\"rt-time\"> 5<\/span> <span class=\"rt-label rt-postfix\">minuty<\/span><\/span>S rostouc\u00edm po\u010dtem vloup\u00e1n\u00ed, kr\u00e1de\u017e\u00ed a dal\u0161\u00edch trestn\u00fdch \u010din\u016f roste v\u00fdznam kamerov\u00e9ho syst\u00e9mu. Je rozumn\u00e9 vybavit sv\u016fj d\u016fm a dv\u016fr videokamerami. Jednak jako odstra\u0161uj\u00edc\u00ed prost\u0159edek, jednak proto, abyste mohli v p\u0159\u00edpad\u011b pot\u0159eby identifikovat naru\u0161itele. Mno\u017estv\u00ed nab\u00edzen\u00fdch produkt\u016f je t\u00e9m\u011b\u0159 nep\u0159ehledn\u00e9. Ceny se pohybuj\u00ed od dvou a\u017e po \u010dty\u0159m\u00edstn\u00e9 \u010d\u00e1stky v eurech. Tomu odpov\u00eddaj\u00ed i rozd\u00edly v kvalit\u011b....&nbsp;<a href=\"https:\/\/csiag.eu\/cs\/blog\/2021\/08\/21\/video-ueberwachung\/\" rel=\"bookmark\">\u010c\u00edst d\u00e1le \"<span class=\"screen-reader-text\">Videodohled<\/span><\/a><\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_lmt_disableupdate":"","_lmt_disable":"","neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"","neve_meta_content_width":0,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","footnotes":""},"categories":[901,360,330,331],"tags":[1045,1036,1029,1031,1030,1033,972,1038,1039,971,838,1043,1037,1046,1044,1035,1041,786,1034,1040,1042,1028,1027,1047,563,1032,465],"class_list":["post-571","post","type-post","status-publish","format-standard","hentry","category-alarmanlage","category-haus-und-garten","category-video-ueberwachung","category-vier-monitore-am-mac-mini-m1","tag-auflegewerkzeug","tag-brennweite","tag-bullet","tag-cat-6","tag-dome","tag-fixfokus","tag-hikvision","tag-ir","tag-ir-scheinwerfer","tag-kamera","tag-lan","tag-lan-kabel","tag-lichtempfindlichkeit","tag-nas","tag-nvr","tag-objektiv","tag-outdoor","tag-poe","tag-ptz","tag-raytec","tag-switch","tag-ueberwachung","tag-video","tag-western-digital","tag-wlan","tag-zoom","tag-zusatzscheinwerfer"],"modified_by":"Achim Goerner","_links":{"self":[{"href":"https:\/\/csiag.eu\/cs\/wp-json\/wp\/v2\/posts\/571","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/csiag.eu\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/csiag.eu\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/csiag.eu\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/csiag.eu\/cs\/wp-json\/wp\/v2\/comments?post=571"}],"version-history":[{"count":0,"href":"https:\/\/csiag.eu\/cs\/wp-json\/wp\/v2\/posts\/571\/revisions"}],"wp:attachment":[{"href":"https:\/\/csiag.eu\/cs\/wp-json\/wp\/v2\/media?parent=571"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/csiag.eu\/cs\/wp-json\/wp\/v2\/categories?post=571"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/csiag.eu\/cs\/wp-json\/wp\/v2\/tags?post=571"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}