{"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-dohlad","status":"publish","type":"post","link":"https:\/\/csiag.eu\/sk\/blog\/2021\/08\/21\/video-ueberwachung\/","title":{"rendered":"Video doh\u013ead"},"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\/sk\/blog\/2021\/08\/21\/video-ueberwachung\/#Kamera-Modelle\" >Modely fotoapar\u00e1tov<\/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\/sk\/blog\/2021\/08\/21\/video-ueberwachung\/#Das_richtige_Objektiv\" >Spr\u00e1vny objekt\u00edv<\/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\/sk\/blog\/2021\/08\/21\/video-ueberwachung\/#Empfehlenswerte_Dome-Kameras\" >Odpor\u00fa\u010dan\u00e9 (kupolov\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\/sk\/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\/sk\/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\/sk\/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\">\u010cas \u010d\u00edtania<\/span> <span class=\"rt-time\"> 5<\/span> <span class=\"rt-label rt-postfix\">z\u00e1pisnice<\/span><\/span>\n<p class=\"wp-block-paragraph\">S rast\u00facim po\u010dtom vl\u00e1man\u00ed, kr\u00e1de\u017e\u00ed a in\u00fdch trestn\u00fdch \u010dinov rastie v\u00fdznam kamerov\u00e9ho syst\u00e9mu. Je rozumn\u00e9 vybavi\u0165 svoj dom a dvor videokamerami. Na jednej strane ako odstra\u0161uj\u00faci prostriedok, na druhej strane, aby ste v pr\u00edpade potreby mohli identifikova\u0165 naru\u0161ite\u013ea.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Po\u010det pon\u00fak je takmer nezvl\u00e1dnute\u013en\u00fd. Ceny sa pohybuj\u00fa od dvojcifern\u00fdch a\u017e po \u0161tvorcifern\u00e9 sumy v eur\u00e1ch. Rozdiely v kvalite s\u00fa primerane ve\u013ek\u00e9.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ako ka\u017ed\u00fd z\u00e1ujemca m\u00e1te spo\u010diatku tendenciu uprednost\u0148ova\u0165 lacnej\u0161ie ponuky. Ke\u010f v\u0161ak pr\u00edde na z\u00edskanie pou\u017eite\u013en\u00fdch sn\u00edmok v noci, zrno sa oddel\u00ed od pliev.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pod trojcifernou sumou v eur\u00e1ch je v\u00fdnos z h\u013eadiska prijate\u013en\u00e9ho pomeru ceny a v\u00fdkonu miziv\u00fd. Medzi 130 ... 280 eur v\u0161ak n\u00e1jdete mimoriadne dobr\u00e9 v\u00fdrobky, najm\u00e4 tie od spolo\u010dnosti Hikvision, pravdepodobne najv\u00e4\u010d\u0161ieho v\u00fdrobcu kamier, ktor\u00e9 sa vyr\u00e1baj\u00fa vo ve\u013emi ve\u013ek\u00fdch mno\u017estv\u00e1ch a s\u00fa ob\u013e\u00faben\u00e9 na pou\u017eitie v priemyselnom, verejnom aj s\u00fakromnom prostred\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\u00e1tov<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Najprv je potrebn\u00e9 rozli\u0161ova\u0165 medzi takzvan\u00fdmi gu\u013eov\u00fdmi a kupolov\u00fdmi kamerami.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pri gu\u013eovej kamere je smer poh\u013eadu \u013eahko rozpoznate\u013en\u00fd z v\u00e4\u010d\u0161ej vzdialenosti. Smer kopulovej kamery sa d\u00e1 rozpozna\u0165 len z bezprostrednej bl\u00edzkosti. V druhom pr\u00edpade sa kamera nach\u00e1dza pod sklenenou kupolou, v ktorej sa kamera - vo verzii PTZ - m\u00f4\u017ee ot\u00e1\u010da\u0165 o 355 stup\u0148ov a nakl\u00e1\u0148a\u0165 o pribli\u017ene 75 stup\u0148ov.<br>Vzh\u013eadom na \u010diernu farbu kamery ju pod sklenenou kupolou takmer nevidno, nehovoriac o ploche, ktor\u00fa pokr\u00fdva.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Obidve kon\u0161trukcie maj\u00fa spolo\u010dn\u00e9 to, \u017ee m\u00f4\u017eu by\u0165 vybaven\u00e9 pevn\u00fdm zaostren\u00edm, motorizovan\u00fdm zoomom a infra\u010derven\u00fdmi di\u00f3dami (no\u010dn\u00e9 videnie), WLAN, pripojen\u00edm LAN a POE (Power Over Ethernet). Vo verzii POE nie je potrebn\u00e1 samostatn\u00e1 nap\u00e1jacia jednotka na nap\u00e1janie, ak prep\u00edna\u010d poskytuje POE. Tento variant je najlep\u0161ou vo\u013ebou.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Od siete WLAN by ste sa mali di\u0161tancova\u0165. Na vyradenie kamier z \u010dinnosti sta\u010dia jednoduch\u00e9 vysiela\u010de WLAN. Bez vhodnej kabel\u00e1\u017ee CAT.6 a v\u00fdkonn\u00fdch, spravovate\u013en\u00fdch prep\u00edna\u010dov nem\u00e1 seri\u00f3zny video doh\u013ead zmysel!<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">To, \u010di je funkcia pribl\u00ed\u017eenia potrebn\u00e1, z\u00e1vis\u00ed od aplik\u00e1cie. Ak je umiestnenie kamery \u010falej od sledovan\u00e9ho priestoru, odpor\u00fa\u010da sa kamera s funkciou pribl\u00ed\u017eenia a dobr\u00fdm (!) infra\u010derven\u00fdm osvetlen\u00edm, pr\u00edpadne aj s pou\u017eit\u00edm \u010fal\u0161\u00edch reflektorov.<br>Pokia\u013e ide o funkciu zoomu, treba rozli\u0161ova\u0165 medzi digit\u00e1lnym a optick\u00fdm zoomom; uprednost\u0148uje sa optick\u00fd zoom. Pri digit\u00e1lnom pribl\u00ed\u017een\u00ed sa ve\u013emi r\u00fdchlo prejavuje pixeliz\u00e1cia.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ak sa sn\u00edmky monitoruj\u00fa trvalo a vy\u017eaduje sa manu\u00e1lne sledovanie objektu, je vhodnej\u0161ia motorizovan\u00e1 funkcia ot\u00e1\u010dania\/nakl\u00e1\u0148ania alebo zoomu.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Kamery, ktor\u00e9 automaticky sleduj\u00fa rozpoznan\u00e9 objekty, sa pohybuj\u00fa v \u0161tvormiestnom eurovom rozmedz\u00ed. Pou\u017e\u00edvaj\u00fa sa vo verejn\u00fdch a priemyseln\u00fdch aplika\u010dn\u00fdch scen\u00e1roch.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ozna\u010denie PTZ (Pan Tilt Zoom) znamen\u00e1, \u017ee kameru mo\u017eno horizont\u00e1lne a vertik\u00e1lne ot\u00e1\u010da\u0165 a \u017ee objekt\u00edv mo\u017eno pribl\u00ed\u017ei\u0165.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ak fotoapar\u00e1t poskytuje zvukov\u00fa funkciu, je potrebn\u00e9 rozli\u0161ova\u0165, \u010di ide o jednosmern\u00fd (z\u00e1znam zvuku) alebo obojsmern\u00fd (z\u00e1znam a prehr\u00e1vanie zvuku) zvuk.<br><br><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Das_richtige_Objektiv\"><\/span>Spr\u00e1vny objekt\u00edv<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">V z\u00e1vislosti od \u00fa\u010delu pou\u017eitia a rozpo\u010dtu si m\u00f4\u017eete vybra\u0165 z r\u00f4znych konfigur\u00e1ci\u00ed objekt\u00edvov. \u010co je potrebn\u00e9 zv\u00e1\u017ei\u0165, je vysvetlen\u00e9 tu.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Rovnako ako pri fotografovan\u00ed je intenzita svetla mimoriadne d\u00f4le\u017eit\u00e1, najm\u00e4 pokia\u013e ide o no\u010dn\u00e9 videnie. \u010c\u00edm je t\u00e1to hodnota men\u0161ia (napr. f = 1,2), \u010d\u00edm s\u00fa objekt\u00edvy v\u00e4\u010d\u0161ie, t\u00fdm viac svetla je k dispoz\u00edcii na spracovanie obrazov\u00fdm sn\u00edma\u010dom.<br>Sveteln\u00e1 citlivos\u0165 sn\u00edma\u010da sa ud\u00e1va v luxoch a zvy\u010dajne je 0,001 ... 0 luxov.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ohniskov\u00e1 vzdialenos\u0165 ur\u010duje sn\u00edman\u00fa oblas\u0165. Kresba je najlep\u0161\u00ed sp\u00f4sob, ako ur\u010di\u0165 vhodn\u00fa ohniskov\u00fa vzdialenos\u0165. Be\u017en\u00e9 pevn\u00e9 ohniskov\u00e9 vzdialenosti s\u00fa 2,8 mm so zorn\u00fdm po\u013eom 80 ... 100 stup\u0148ov.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u010c\u00edm dlh\u0161ia je ohniskov\u00e1 vzdialenos\u0165 (pri objekt\u00edvoch so zoomom), t\u00fdm men\u0161ie je zorn\u00e9 pole (12 mm -&gt; 31,6 stup\u0148a), \u010d\u00edm krat\u0161ia je ohniskov\u00e1 vzdialenos\u0165, t\u00fdm \u0161ir\u0161ie je zorn\u00e9 pole (2,8 mm -&gt; 96,7 stup\u0148a).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Vzdialenos\u0165 medzi dvoma kamerami by mala by\u0165 tak\u00e1, aby pozorovan\u00fd objekt nebol vzdialen\u00fd viac ako 5 metrov. D\u00f4vod je jednoduch\u00fd: tv\u00e1r alebo tabu\u013eka s eviden\u010dn\u00fdm \u010d\u00edslom by sa mala da\u0165 zv\u00e4\u010d\u0161i\u0165 aj v noci, aby zostala jasne rozpoznate\u013en\u00e1 bez toho, aby sa rozmazala na pixely. Vzdialenos\u0165 10 metrov je cez de\u0148 e\u0161te mo\u017en\u00e1, ale v noci u\u017e nie. Bez pr\u00eddavn\u00fdch svetlometov je to ur\u010dite hranica.<br><br><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Empfehlenswerte_Dome-Kameras\"><\/span>Odpor\u00fa\u010dan\u00e9 (kupolov\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 zaostrenie<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\">Rozl\u00ed\u0161enie 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\u00e1 ohniskov\u00e1 vzdialenos\u0165 2,8 ... 12 mm, opt. zoom, 100\u00b0 ... 30\u00b0<br>Rozl\u00ed\u0161enie 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, obojsmern\u00fd zvuk)<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Variabiln\u00e1 ohniskov\u00e1 vzdialenos\u0165 2,8 ... 12 mm, optick\u00fd zoom, 96,7\u00b0 ... 31,6\u00b0<br><meta charset=\"utf-8\">Rozl\u00ed\u0161enie 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\">In\u0161tal\u00e1cia IR pomocn\u00fdch reflektorov si vy\u017eaduje nap\u00e1janie, zvy\u010dajne 230 V, zriedkavej\u0161ie 12\/24 V DC.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Reflektory nesm\u00fa zakr\u00fdva\u0165 objekt\u00edv fotoapar\u00e1tu, inak by bol oslnen\u00fd, a teda zatienen\u00fd.<br>Je tie\u017e potrebn\u00e9 skontrolova\u0165, \u010di je fotoapar\u00e1t citliv\u00fd na infra\u010derven\u00e9 \u017eiarenie vo vidite\u013enom alebo nevidite\u013enom rozsahu. Pod\u013ea toho by sa mali vybra\u0165 \u010fal\u0161ie reflektory.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V cenovom segmente do pribli\u017ene 500 EUR sa zvy\u010dajne in\u0161taluj\u00fa IR di\u00f3dy, ktor\u00e9 vy\u017earuj\u00fa vidite\u013en\u00e9 IR svetlo (tmavo\u010derven\u00e9 850 nm). Kamery, ktor\u00e9 maj\u00fa IR di\u00f3dy v nevidite\u013enom IR rozsahu (940 nm), s\u00fa nad touto cenovou hranicou. To plat\u00ed aj pre pr\u00edslu\u0161n\u00e9 IR reflektory.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Spolo\u010dnos\u0165 Raytec pon\u00faka ve\u013ek\u00fd v\u00fdber ve\u013emi dobr\u00fdch infra\u010derven\u00fdch reflektorov s vlnovou d\u013a\u017ekou 850\/940 nm v cenovom segmente okolo 250 ... 2 000 eur za kus (napr. s vidite\u013en\u00fdm IR svetlom 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>Pomerne vysok\u00e1 cena je sp\u00f4soben\u00e1 v\u00fdhradn\u00fdm pou\u017eit\u00edm vybran\u00fdch infra\u010derven\u00fdch di\u00f3d, vynikaj\u00facim odvodom tepla a prepracovanou energetickou koncepciou, \u010do vedie k ve\u013emi dlhej \u017eivotnosti.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u00dadajne lacn\u00e9 reflektory vo vidite\u013enom infra\u010dervenom rozsahu sa pohybuj\u00fa v dvoj- alebo trojcifernom eurovom rozp\u00e4t\u00ed. Niektor\u00e9 z nich v\u0161ak maj\u00fa IR di\u00f3dy, ktor\u00e9 v kr\u00e1tkom \u010dase zlyh\u00e1vaj\u00fa, ako aj ve\u013emi nehomog\u00e9nne osvetlenie, preto\u017ee nie je zabezpe\u010den\u00fd st\u00e1ly zdroj nap\u00e1jania ani sol\u00eddny odvod tepla.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Od \u00fadajne lacn\u00fdch pon\u00fak by ste si mali dr\u017ea\u0165 odstup. Ak kupujete lacno, kupujete dvakr\u00e1t, a teda drah\u0161ie.<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 s\u00fakromn\u00fdch domoch sa kamery zvy\u010dajne montuj\u00fa pod odkvap, aby boli chr\u00e1nen\u00e9 pred poveternostn\u00fdmi vplyvmi. Kamery ur\u010den\u00e9 na vonkaj\u0161iu in\u0161tal\u00e1ciu s\u00fa zvy\u010dajne navrhnut\u00e9 v s\u00falade s normou IP65, t. j. m\u00f4\u017eu by\u0165 vystaven\u00e9 da\u017e\u010fu alebo snehu.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ak chcete monitorova\u0165 budovu v tvare \u0161tvorca, obd\u013a\u017enika alebo p\u00edsmena L, budete potrebova\u0165 osem kamier: dve v ka\u017edom rohu budovy. Takto dve kamery zaznamen\u00e1vaj\u00fa v\u017edy jedn\u00e9ho n\u00e1v\u0161tevn\u00edka. Jedna z nich teda bude v\u017edy zaznamen\u00e1va\u0165 tv\u00e1r.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ak je to mo\u017en\u00e9, k\u00e1ble LAN by sa nemali kl\u00e1s\u0165 ako in\u0161tala\u010dn\u00e9 k\u00e1ble, ale vo forme vopred zmontovan\u00fdch k\u00e1blov. Na jednej strane je to cenovo v\u00fdhodnej\u0161ie, preto\u017ee nie s\u00fa potrebn\u00e9 rozbo\u010dovacie krabice, a na druhej strane sa t\u00fdm pred\u00edde zdrojom ch\u00fdb, pokia\u013e ide o koncov\u00e9 kontakty, ktor\u00e9 sa maj\u00fa vykona\u0165 prostredn\u00edctvom in\u0161tala\u010dn\u00e9ho n\u00e1stroja, a u\u0161etr\u00ed sa aj pr\u00edslu\u0161n\u00fd pracovn\u00fd \u010das.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pri \u00f4smich kamer\u00e1ch potrebujete <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\">10-portov\u00fd prep\u00edna\u010d<\/a>osem pripojen\u00ed pre kamery a jedno pre v\u00fdstupn\u00fa linku do smerova\u010da alebo sie\u0165ov\u00e9ho videorekord\u00e9ra (NVR).<br>Jednoduch\u00fdm prep\u00edna\u010dom by ste sa mali vyhn\u00fa\u0165, preto\u017ee d\u00e1tov\u00fd tok zo 16 kamier s vysok\u00fdm rozl\u00ed\u0161en\u00edm je zna\u010dn\u00fd a r\u00fdchlo prekro\u010d\u00ed v\u00fdkonnostn\u00e9 limity \"lacn\u00fdch\" prep\u00edna\u010dov.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Samozrejme, \u017ee je potrebn\u00e9 nap\u00e1jacie vedenie 230 V so z\u00e1suvkou pre vyp\u00edna\u010d, ktor\u00e9 m\u00f4\u017ee by\u0165 v pr\u00edpade potreby nain\u0161talovan\u00e9 centr\u00e1lne v stre\u0161nom pr\u00edstre\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 pon\u00faka mo\u017enos\u0165 uklada\u0165 videoprenosy z kamier po\u010das dlh\u0161ieho \u010dasov\u00e9ho obdobia. D\u013a\u017eka nahr\u00e1vania z\u00e1vis\u00ed od kapacity nain\u0161talovan\u00fdch pevn\u00fdch diskov. S \u00falo\u017en\u00fdm priestorom pribli\u017ene 8 TB (Tera Byte) mo\u017eno v re\u017eime vysok\u00e9ho rozl\u00ed\u0161enia zaznamena\u0165 a\u017e osem t\u00fd\u017ed\u0148ov videomateri\u00e1lu zo 16 kamier (napr. zariadenie 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 sa zvy\u010dajne dod\u00e1va bez pevn\u00fdch diskov. In\u0161tal\u00e1cia pevn\u00fdch diskov je pre neodborn\u00edkov pomerne jednoduch\u00e1. Jedin\u00e9, \u010do treba pri v\u00fdbere zoh\u013eadni\u0165, s\u00fa fyzick\u00e9 rozmery pevn\u00fdch diskov a maxim\u00e1lna podporovan\u00e1 ve\u013ekos\u0165 pam\u00e4te radi\u010da v TB.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pevn\u00e9 disky vhodn\u00e9 na nepretr\u017eit\u00fa prev\u00e1dzku by mali by\u0165 certifikovan\u00e9 na pou\u017eitie v syst\u00e9moch NAS (Network Attached Storage), napr. s\u00e9ria <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 spolo\u010dnosti Western Digital s 8 TB<\/a> kapacitu. Ich stredn\u00e1 doba medzi poruchami (MTBF) je pribli\u017ene dvojn\u00e1sobn\u00e1 v porovnan\u00ed s be\u017en\u00fdmi pevn\u00fdmi diskami, a to 1,2 mili\u00f3na hod\u00edn. Okrem toho by mala by\u0165 z\u00e1ru\u010dn\u00e1 doba v\u00fdrobcu minim\u00e1lne 5 rokov.<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\">\u010cas \u010d\u00edtania<\/span> <span class=\"rt-time\"> 5<\/span> <span class=\"rt-label rt-postfix\">z\u00e1pisnice<\/span><\/span>S rast\u00facim po\u010dtom vl\u00e1man\u00ed, kr\u00e1de\u017e\u00ed a in\u00fdch trestn\u00fdch \u010dinov rastie v\u00fdznam kamerov\u00e9ho doh\u013eadu. Je rozumn\u00e9 vybavi\u0165 svoj dom a dvor videokamerami. Na jednej strane ako odstra\u0161uj\u00faci prostriedok, na druhej strane, aby ste v pr\u00edpade potreby mohli identifikova\u0165 naru\u0161ite\u013ea. Mno\u017estvo pon\u00fakan\u00fdch produktov je takmer nezvl\u00e1dnute\u013en\u00e9. Ceny sa pohybuj\u00fa od dvojmiestnych a\u017e po \u0161tvormiestne sumy v eur\u00e1ch. Tomu zodpovedaj\u00fa aj rozdiely v kvalite....&nbsp;<a href=\"https:\/\/csiag.eu\/sk\/blog\/2021\/08\/21\/video-ueberwachung\/\" rel=\"bookmark\">\u010c\u00edta\u0165 viac \"<span class=\"screen-reader-text\">Video doh\u013ead<\/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\/sk\/wp-json\/wp\/v2\/posts\/571","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/csiag.eu\/sk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/csiag.eu\/sk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/csiag.eu\/sk\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/csiag.eu\/sk\/wp-json\/wp\/v2\/comments?post=571"}],"version-history":[{"count":0,"href":"https:\/\/csiag.eu\/sk\/wp-json\/wp\/v2\/posts\/571\/revisions"}],"wp:attachment":[{"href":"https:\/\/csiag.eu\/sk\/wp-json\/wp\/v2\/media?parent=571"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/csiag.eu\/sk\/wp-json\/wp\/v2\/categories?post=571"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/csiag.eu\/sk\/wp-json\/wp\/v2\/tags?post=571"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}