{"id":97328,"date":"2020-10-17T08:43:09","date_gmt":"2020-10-17T06:43:09","guid":{"rendered":"https:\/\/prohoster.info\/blog\/administrirovanie\/vazhnejshie-vehi-v-istorii-razvitiya-sistem-videonablyudeniya"},"modified":"2026-05-20T17:45:16","modified_gmt":"2026-05-20T15:45:16","slug":"vazhnejshie-vehi-v-istorii-razvitiya-sistem-videonablyudeniya","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sk\/blog\/administrirovanie\/vazhnejshie-vehi-v-istorii-razvitiya-sistem-videonablyudeniya","title":{"rendered":"K\u013e\u00fa\u010dov\u00e9 m\u00ed\u013eniky v hist\u00f3rii v\u00fdvoja syst\u00e9mov videodoh\u013eadu","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><img decoding=\"async\" alt=\"K\u013e\u00fa\u010dov\u00e9 m\u00ed\u013eniky v hist\u00f3rii v\u00fdvoja syst\u00e9mov videodoh\u013eadu\" src=\"\/wp-content\/uploads\/2020\/10\/43441678e0f034c89d6a25f36eadfa24.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\nFunkcie modern\u00fdch pozorovac\u00edch syst\u00e9mov d\u00e1vno prekro\u010dili r\u00e1mec len videoz\u00e1znamu. Rozpozn\u00e1vanie pohybu v zauj\u00edmavej oblasti, po\u010d\u00edtanie a identifik\u00e1cia os\u00f4b a motorov\u00fdch vozidiel, sledovanie objektu v pohybe \u2014 to v\u0161etko s\u00fa schopnosti aj t\u00fdch najlacnej\u0161\u00edch IP kamier. Pri dostato\u010dne v\u00fdkonnom serveri a potrebnom softv\u00e9ri s\u00fa mo\u017enosti bezpe\u010dnostnej infra\u0161trukt\u00fary prakticky bezhrani\u010dn\u00e9. A predt\u00fdm podobn\u00e9 syst\u00e9my nevedeli ani zaznamen\u00e1va\u0165 video.<noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><\/p>\n<h2>Od panteleografu po mechanick\u00fd telef\u00f3n<\/h2>\n<p>\nPrv\u00e9 pokusy o prenos obrazu na dia\u013eku sa uskuto\u010dnili u\u017e v druhej polovici 19. storo\u010dia. V roku 1862 vytvoril florentsk\u00fd opat Giovanni Caselli zariadenie, ktor\u00e9 dok\u00e1zalo nielen pren\u00e1\u0161a\u0165, ale aj prij\u00edma\u0165 obraz po elektrick\u00fdch vodi\u010doch \u2014 panteleograf. Len \u0165a\u017eko by sme tento pr\u00edstroj mohli nazva\u0165 \"mechanick\u00fdm telef\u00f3nom\": fakticky taliansky vyn\u00e1lezca vytvoril prototyp faxov\u00e9ho zariadenia.<\/p>\n<p><img decoding=\"async\" alt=\"K\u013e\u00fa\u010dov\u00e9 m\u00ed\u013eniky v hist\u00f3rii v\u00fdvoja syst\u00e9mov videodoh\u013eadu\" src=\"\/wp-content\/uploads\/2020\/10\/15218337698b9238e5da4e73cf9a3170.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>Panteleograf Giovanniho Caselliho<\/i><\/p>\n<p>Elektrochimick\u00fd telegraf Caselliho fungoval nasledovne. Pren\u00e1\u0161an\u00fd obraz sa najprv \u201ekonvertoval\u201c do vhodn\u00e9ho form\u00e1tu, ke\u010f sa bezvodiv\u00fdmi atramentmi prekreslil na plechov\u00fa plat\u0148u (oloven\u00fa f\u00f3liu), a potom sa upevnil svorkami na ohnutej medi. Zlat\u00e1 ihla sl\u00fa\u017eila ako \u010d\u00edtacia hlava, skenuj\u00fac bronzov\u00fd list v rozstupu 0,5 mm. Ke\u010f sa ihla dostala nad oblas\u0165 s bezvodiv\u00fdmi atramentmi, uzem\u0148ovac\u00ed obvod sa otvoril a pr\u00fad bol poslan\u00fd cez dr\u00f4ty, ktor\u00e9 spojili odosielaj\u00faci panteleograf s prij\u00edmaj\u00facim. V t\u00fa dobu sa ihla prij\u00edma\u010da pohybovala nad listom hrub\u00e9ho papiera nasiaknut\u00e9ho zmesou g\u00e9lu a hexakyanferr\u00e1tu drasl\u00edka. Vplyvom elektrick\u00e9ho pr\u00fadu sa spojenie zatemnilo, a tak sa vytvoril obraz.<\/p>\n<p>Tento p\u0159\u00edstroj m\u011bl mnoho nedostatk\u016f, mezi kter\u00fdmi je t\u0159eba zm\u00ednit n\u00edzk\u00fd v\u00fdkon, pot\u0159ebu synchronizace p\u0159ij\u00edma\u010de a vys\u00edla\u010de, od jejich\u017e p\u0159esnosti z\u00e1visela kvalita kone\u010dn\u00e9ho obrazu, a tak\u00e9 n\u00e1ro\u010dnost a vysok\u00e9 n\u00e1klady na \u00fadr\u017ebu, co\u017e m\u011blo za n\u00e1sledek velmi kr\u00e1tkou \u017eivotnost pantelegraphu. Nap\u0159\u00edklad za\u0159\u00edzen\u00ed Kazelli, pou\u017e\u00edvan\u00e1 na telegrafn\u00ed lince Moskva - Petrohrad, fungovala jen n\u011bco m\u00e1lo p\u0159es 1 rok: byla uvedena do provozu 17. dubna 1866, v den otev\u0159en\u00ed telegrafn\u00edho spojen\u00ed mezi ob\u011bma metropolemi, a pantelegraphy byly demontov\u00e1ny ji\u017e na za\u010d\u00e1tku roku 1868.<\/p>\n<p>Daleko prakti\u010dt\u011bj\u0161\u00ed se uk\u00e1zal b\u00fdt bildtelegraf, kter\u00fd byl v roce 1902 vytvo\u0159en Arthurem Kornem na z\u00e1klad\u011b prvn\u00edho fotoelektrick\u00e9ho \u010dl\u00e1nku vynalezen\u00e9ho rusk\u00fdm fyzikem Alexandrem Stoletovem. Za\u0159\u00edzen\u00ed z\u00edskalo sv\u011btovou proslulost 17. b\u0159ezna 1908: tohoto dne byla pomoc\u00ed bildtelegrafu z policejn\u00ed stanice v Pa\u0159\u00ed\u017ei do Lond\u00fdna odesl\u00e1na fotografie zlo\u010dince, d\u00edky kter\u00e9 se policist\u016fm n\u00e1sledn\u011b poda\u0159ilo vyp\u00e1trat a zadr\u017eet pachatele.<\/p>\n<p><img decoding=\"async\" alt=\"K\u013e\u00fa\u010dov\u00e9 m\u00ed\u013eniky v hist\u00f3rii v\u00fdvoja syst\u00e9mov videodoh\u013eadu\" src=\"\/wp-content\/uploads\/2020\/10\/85f02d8fdc587fe756a1f34daf74e7a4.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>Arthur Korn a jeho bildtelegraf<\/i><\/p>\n<p>Podobn\u00fd p\u0159\u00edstroj zaji\u0161\u0165oval dobrou detailnost fotografick\u00e9ho obrazu a ji\u017e nevy\u017eadoval jej\u00ed speci\u00e1ln\u00ed p\u0159\u00edpravu, nicm\u00e9n\u011b pro p\u0159enos obr\u00e1zku v re\u00e1ln\u00e9m \u010dase je\u0161t\u011b nebyl vhodn\u00fd: zpracov\u00e1n\u00ed jedn\u00e9 fotografie trvalo p\u0159ibli\u017en\u011b 10\u201315 minut. Nicm\u00e9n\u011b, bildtelegraf si dob\u0159e vedl v kriminalistice (\u00fasp\u011b\u0161n\u011b jej pou\u017e\u00edvala policie k p\u0159enosu sn\u00edmk\u016f, fotopotisk\u016f a otisk\u016f prst\u016f mezi odd\u011blen\u00edmi a dokonce i zem\u011bmi), stejn\u011b jako v novin\u00e1\u0159stv\u00ed.<\/p>\n<p>Skute\u010dn\u00fd pr\u016flom v t\u00e9to oblasti nastal v roce 1909: pr\u00e1v\u011b tehdy se Georgi Rinu poda\u0159ilo dos\u00e1hnout p\u0159enosu obrazu s frekvenc\u00ed aktualizace 1 sn\u00edmek za sekundu. Jeliko\u017e telefonografick\u00fd p\u0159\u00edstroj m\u011bl \"senzor\" p\u0159edstavovan\u00fd mozaikou ze selenov\u00fdch fotoelement\u016f a jeho rozli\u0161en\u00ed bylo pouh\u00fdch 8 \u00d7 8 \"pixel\u016f\", nikdy se nedostal za hranice laboratorn\u00edch st\u011bn. Nicm\u00e9n\u011b, samotn\u00fd fakt jeho vzniku polo\u017eil pot\u0159ebn\u00fd z\u00e1klad pro dal\u0161\u00ed v\u00fdzkumy v oblasti p\u0159enosu obrazu.<\/p>\n<p>Skuto\u010dne sa presl\u00e1vil na tomto poli \u0161k\u00f3tsky in\u017einier John Baird, ktor\u00fd sa zap\u00edsal do hist\u00f3rie ako prv\u00fd \u010dlovek, ktor\u00fd dok\u00e1zal pren\u00e1\u0161a\u0165 obraz na dia\u013eku v re\u00e1lnom \u010dase, a preto je pova\u017eovan\u00fd za \u201eotca\u201c mechanick\u00e9ho telev\u00edzora (a vlastne telev\u00edzie ako takej). Ke\u010f\u017ee Baird sa takmer pripravoval o \u017eivot po\u010das svojich experimentov, ke\u010f dostal elektrick\u00fd \u0161ok 2000 voltov pri v\u00fdmene fotoelektrick\u00e9ho elementu v n\u00edm vytvorenej kamere, tak\u00e9to ozna\u010denie je absol\u00fatne zasl\u00fa\u017een\u00e9.<\/p>\n<p><img decoding=\"async\" alt=\"K\u013e\u00fa\u010dov\u00e9 m\u00ed\u013eniky v hist\u00f3rii v\u00fdvoja syst\u00e9mov videodoh\u013eadu\" src=\"\/wp-content\/uploads\/2020\/10\/1cfc70487bc93d125195b2fa5e335133.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>John Baird, vyn\u00e1lezca telev\u00edzie<\/i><\/p>\n<p>V Bairdovom zariaden\u00ed sa vyu\u017e\u00edval \u0161peci\u00e1lny disk, ktor\u00fd vynaliezol nemeck\u00fd technik Paul Nipkow u\u017e v roku 1884. Nipkow disk z neprieh\u013eadn\u00e9ho materi\u00e1lu s radom otvorov rovnak\u00e9ho priemeru, usporiadan\u00fdch po \u0161pir\u00e1le v jednom oto\u010den\u00ed okolo stredu disku v rovnak\u00fdch uhlov\u00fdch rozstupoch, sa pou\u017e\u00edval na skenovanie obrazu, ako aj na jeho formovanie na prij\u00edmaj\u00facom pr\u00edstroji.<\/p>\n<p><img decoding=\"async\" alt=\"K\u013e\u00fa\u010dov\u00e9 m\u00ed\u013eniky v hist\u00f3rii v\u00fdvoja syst\u00e9mov videodoh\u013eadu\" src=\"\/wp-content\/uploads\/2020\/10\/b5e72578b1e54fa4b2c1937283b8f079.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>Zariadenie disku Nipkowa<\/i><\/p>\n<p>Objekt\u00edv zaostruje obraz fotografovan\u00e9ho objektu na povrchu rotuj\u00faceho disku. Svetlo prech\u00e1dzaj\u00face otvormi dopadlo na fotoelement, v\u010faka \u010domu sa obraz konvertoval na elektrick\u00fd sign\u00e1l. Ke\u010f\u017ee otvory boli usporiadan\u00e9 po \u0161pir\u00e1le, ka\u017ed\u00fd z nich v skuto\u010dnosti vykon\u00e1val riadkov\u00e9 skenovanie ur\u010ditej \u010dasti obrazu, zaostren\u00e9ho objekt\u00edvom. Presne tak\u00fd ist\u00fd disk bol pr\u00edtomn\u00fd aj v zariaden\u00ed na reprodukciu, av\u0161ak za n\u00edm bola umiestnen\u00e1 v\u00fdkonn\u00e1 elektrick\u00e1 lampa, ktor\u00e1 vn\u00edmala kol\u00edsanie osvetlenia, a pred n\u00edm bola zv\u00e4\u010d\u0161ovacia \u0161o\u0161ovka alebo syst\u00e9m \u0161o\u0161oviek, ktor\u00fd premietal obraz na obrazovku.<\/p>\n<p><img decoding=\"async\" alt=\"K\u013e\u00fa\u010dov\u00e9 m\u00ed\u013eniky v hist\u00f3rii v\u00fdvoja syst\u00e9mov videodoh\u013eadu\" src=\"\/wp-content\/uploads\/2020\/10\/75887df5eb0c0e7ff71a32bdd7ff7a45.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>Princ\u00edp fungovania mechanick\u00fdch telev\u00edznych syst\u00e9mov<\/i><\/p>\n<p>Bairdov pr\u00edstroj pou\u017e\u00edval Nipkow disk s 30 otvormi (v\u00fdsledkom \u010doho bolo, \u017ee z\u00edskan\u00e9 obraz mal rozl\u00ed\u0161enie len 30 riadkov vertik\u00e1lne) a dok\u00e1zal skenova\u0165 objekty r\u00fdchlos\u0165ou 5 sn\u00edmok za sekundu. Prv\u00fd \u00faspe\u0161n\u00fd experiment s prenosom \u010diernobieleho obrazu sa uskuto\u010dnil 2. okt\u00f3bra 1925: in\u017einierovi sa podarilo prv\u00fdkr\u00e1t pren\u00e1\u0161a\u0165 z jedn\u00e9ho zariadenia na druh\u00e9 polot\u00f3nov\u00fd obraz b\u00e1bky cievkov\u00e9ho umelca.<\/p>\n<p>Po\u010das experimentu zazvonil na dvere kuri\u00e9r, ktor\u00fd mal doru\u010di\u0165 d\u00f4le\u017eit\u00fa kore\u0161pondenciu. Nad\u0161en\u00fd \u00faspechom Baird uchopil zasko\u010den\u00e9ho mlad\u00e9ho mu\u017ea za ruku a odviedol ho do svojej laborat\u00f3ria: netrpezlivo chcel pos\u00fadi\u0165, ako jeho v\u00fdtvor zvl\u00e1dne prenos obrazu \u013eudskej tv\u00e1re. Tak sa 20-ro\u010dn\u00fd William Edward Taynton, ocitn\u00fac sa v spr\u00e1vnom \u010dase na spr\u00e1vnom mieste, zap\u00edsal do hist\u00f3rie ako prv\u00fd \u010dlovek, ktor\u00fd \u201evst\u00fapil do telev\u00edzora\u201c.<\/p>\n<p>V roku 1927 Baird uskuto\u010dnil prv\u00e9 telev\u00edzne vysielanie medzi Lond\u00fdnom a Glasgowe (na vzdialenos\u0165 705 km) cez telef\u00f3nne k\u00e1ble. A v roku 1928 zalo\u017een\u00e1 in\u017einierom spolo\u010dnos\u0165 Baird Television Development Company Ltd \u00faspe\u0161ne uskuto\u010dnila prv\u00fd na svete transatlantick\u00fd prenos telev\u00edzneho sign\u00e1lu medzi Lond\u00fdnom a Hartsdale (\u0161t\u00e1t New York). Prezent\u00e1cia mo\u017enost\u00ed 30-p\u00e1smov\u00e9ho syst\u00e9mu Baird sa uk\u00e1zala ako najlep\u0161ia reklama: u\u017e v roku 1929 ju prevzala BBC a \u00faspe\u0161ne ju pou\u017e\u00edvala po\u010das nasleduj\u00facich 6 rokov, a\u017e k\u00fdm ju nevytla\u010dila pokro\u010dilej\u0161ia technol\u00f3gia na b\u00e1ze kat\u00f3dov\u00fdch r\u00far.<\/p>\n<h2>Ikonoskop \u2014 predzves\u0165 novej \u00e9ry<\/h2>\n<p>\nPri vzniku kat\u00f3dovej trubice v\u010fa\u010d\u00edme n\u00e1\u0161mu b\u00fdval\u00e9mu spolukrajaniu Vladim\u00edrovi Kozmi\u010dovi Zvorikinovi. Po\u010das ob\u010dianskej vojny sa in\u017einier postavil na stranu bieleho hnutia a u\u0161iel cez Jekaterinburg do Omska, kde sa zaoberal vybaven\u00edm r\u00e1diostan\u00edc. V roku 1919 sa Zvorikin vybral na slu\u017eobn\u00fa cestu do New Yorku. Pr\u00e1ve v tom \u010dase prebehla Omsk\u00e1 oper\u00e1cia (november 1919), v\u00fdsledkom ktorej bolo dobytie mesta \u010cervenou arm\u00e1dou prakticky bez boja. Ke\u010f\u017ee in\u017einier u\u017e nemal kam sa vr\u00e1ti\u0165, zostal v n\u00fatenej emigr\u00e1cii a stal sa zamestnancom spolo\u010dnosti Westinghouse Electric (teraz \u2014 CBS Corporation), ktor\u00e1 u\u017e vtedy bola jednou z popredn\u00fdch elektrick\u00fdch korpor\u00e1ci\u00ed v USA, kde s\u00fa\u010dasne pracoval na v\u00fdskumoch v oblasti prenosu obrazu na dia\u013eku.<\/p>\n<p><img decoding=\"async\" alt=\"K\u013e\u00fa\u010dov\u00e9 m\u00ed\u013eniky v hist\u00f3rii v\u00fdvoja syst\u00e9mov videodoh\u013eadu\" src=\"\/wp-content\/uploads\/2020\/10\/88421fa72300fbb957bffc4236777f28.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>Vladimir Kozmi\u010d Zvorik\u00edn, tvorca ikonoskopu<\/i><\/p>\n<p>Do roku 1923 sa in\u017einierovi podarilo vytvori\u0165 prv\u00e9 telev\u00edzne zariadenie, ktor\u00e9ho z\u00e1kladom bola vysielacia elektronick\u00e1 trubica s mozaikov\u00fdm fotokat\u00f3dou. Nov\u00e9 vedenie v\u0161ak nebralo pr\u00e1cu vedca v\u00e1\u017ene, a tak Zvorikyn dlh\u00fd \u010das musel vykon\u00e1va\u0165 v\u00fdskum s\u00e1m v podmienkach extr\u00e9mne obmedzen\u00fdch zdrojov. Mo\u017enos\u0165 vr\u00e1ti\u0165 sa k plnohodnotnej v\u00fdskumnej \u010dinnosti sa Zvorikynovi naskytla a\u017e v roku 1928, ke\u010f sa zozn\u00e1mil s \u010fal\u0161\u00edm emigrantom z Ruska \u2014 Davidom Sarnovom, ktor\u00fd vtedy p\u00f4sobil ako viceprezident spolo\u010dnosti Radio Corporation of America (RCA). Sarno na\u0161iel n\u00e1pady vyn\u00e1lezcu ve\u013emi perspekt\u00edvne, a tak menoval Zvorikyna ved\u00facim laborat\u00f3ria elektroniky RCA a vec sa posunula z m\u0155tveho bodu.<\/p>\n<p>V roku 1929 predstavil Vladimir Kozmi\u010d pracovn\u00fd prototyp vysoko-vakuovej telev\u00edznej trubice (kineoskopu), a v roku 1931 dokon\u010dil pr\u00e1cu na prij\u00edmacom zariaden\u00ed, ktor\u00e9mu dal n\u00e1zov \u201eikonoskop\u201c (od gr\u00e9ckych slov eikon \u2014 \u201eobraz\u201c a skopeo \u2014 \u201epozera\u0165 sa\u201c). Ikonoskop pozost\u00e1val z vakuovej sklenenej ba\u0148ky, vn\u00fatri ktorej bola upevnen\u00e1 svetlocitliv\u00e1 cie\u013eov\u00e1 plocha a k nej pod uhlom umiestnen\u00e1 elektronick\u00e1 pi\u0161to\u013e.<\/p>\n<p><img decoding=\"async\" alt=\"K\u013e\u00fa\u010dov\u00e9 m\u00ed\u013eniky v hist\u00f3rii v\u00fdvoja syst\u00e9mov videodoh\u013eadu\" src=\"\/wp-content\/uploads\/2020\/10\/400946c568362e1346947e097d829cce.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>Princ\u00edpov\u00e1 sch\u00e9ma ikonoskopu<\/i><\/p>\n<p>Svetlocitliv\u00e1 cie\u013eov\u00e1 plocha o ve\u013ekosti 6 \u00d7 19 cm bola zlo\u017een\u00e1 z tenkej izola\u010dnej dosky (miky), na jednu stranu ktorej bolo nanesen\u00fdch pribli\u017ene 1 200 000 mikroskopick\u00fdch (o ve\u013ekosti nieko\u013ek\u00fdch desiatok mikr\u00f3nov) strieborn\u00fdch kvapiek pokryt\u00fdch c\u00e9ziom, a na druh\u00fa stranu \u2014 s\u00favisl\u00fd strieborn\u00fd povrch, z ktor\u00e9ho sa sn\u00edmal v\u00fdstupn\u00fd sign\u00e1l. Pri osvetlen\u00ed cie\u013eovej plochy pod vplyvom fotoefektu nadob\u00fadali kvap\u00f4\u010dky striebra kladn\u00fd n\u00e1boj, ktor\u00e9ho ve\u013ekos\u0165 z\u00e1visela od \u00farovne osvetlenia.<\/p>\n<p><img decoding=\"async\" alt=\"K\u013e\u00fa\u010dov\u00e9 m\u00ed\u013eniky v hist\u00f3rii v\u00fdvoja syst\u00e9mov videodoh\u013eadu\" src=\"\/wp-content\/uploads\/2020\/10\/f0c2b1c0822fb4a8992e2a625747aa4a.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>Origin\u00e1lny ikonoskop v expoz\u00edcii \u010cesk\u00e9ho n\u00e1rodn\u00e9ho m\u00fazea techniky<\/i><\/p>\n<p>Ikonoskop le\u017eal v z\u00e1klade prv\u00fdch syst\u00e9mov elektronick\u00e9ho telev\u00edzie. Jeho vznik umo\u017enil v\u00fdrazne zlep\u0161i\u0165 kvalitu pren\u00e1\u0161anej obrazovej inform\u00e1cie v\u010faka mnohon\u00e1sobn\u00e9mu zv\u00fd\u0161eniu po\u010dtu prvkov v telev\u00edznom obrazovom zobrazen\u00ed: z 300 \u00d7 400 bodov v prv\u00fdch modeloch na 1000 \u00d7 1000 bodov v modernej\u0161\u00edch verzi\u00e1ch. Aj ke\u010f zariadenie nemalo niektor\u00e9 nedostatky, medzi ktor\u00e9 patrila n\u00edzka citlivos\u0165 (na kvalitn\u00e9 sn\u00edmanie bola potrebn\u00e1 osvetlenos\u0165 minim\u00e1lne 10 000 luxov) a trapezoidn\u00e9 skreslenia sp\u00f4soben\u00e9 nes\u00faladom optickej osi a osou l\u00fa\u010dovej trubice, vyn\u00e1lez Zvorikina sa stal v\u00fdznamn\u00fdm m\u00ed\u013enikom v hist\u00f3rii videonahr\u00e1vania, ktor\u00fd do zna\u010dnej miery ur\u010dil \u010fal\u0161\u00ed smer rozvoja odvetvia.<\/p>\n<h2>Na ceste od \"anal\u00f3gu\" k \"digit\u00e1lu\"<\/h2>\n<p>\nAko to \u010dasto b\u00fdva, vojensk\u00e9 konflikty podporuj\u00fa rozvoj r\u00f4znych technol\u00f3gi\u00ed a videonahr\u00e1vanie nie je v tomto pr\u00edpade v\u00fdnimkou. Po\u010das druhej svetovej vojny tretia r\u00ed\u0161a akt\u00edvne pracovala na v\u00fdvoji rakiet s dlh\u00fdm dosahom. Prv\u00e9 prototypy zn\u00e1meho \"zbrane pomsty\" V2 v\u0161ak neboli ve\u013emi spo\u013eahliv\u00e9: rakety sa \u010dasto vybuchli pri \u0161tarte alebo padali kr\u00e1tko po vzlete. Preto\u017ee pokro\u010dil\u00e9 telemetrick\u00e9 syst\u00e9my v tom \u010dase prakticky neexistovali, jedin\u00fdm sp\u00f4sobom, ako zisti\u0165 pr\u00ed\u010dinu ne\u00faspechov, bolo vizu\u00e1lne pozorovanie procesu v\u00fdstupu, \u010do bolo ve\u013emi riskantn\u00e9.<\/p>\n<p><img decoding=\"async\" alt=\"K\u013e\u00fa\u010dov\u00e9 m\u00ed\u013eniky v hist\u00f3rii v\u00fdvoja syst\u00e9mov videodoh\u013eadu\" src=\"\/wp-content\/uploads\/2020\/10\/fe3cabd31bb6791407451effe06beb8a.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>Pr\u00edprava na vypustenie rakety V2 na testovacej ploche v Peenem\u00fcnde<\/i><\/p>\n<p>Aby sa u\u013eah\u010dila pr\u00e1ca v\u00fdvoj\u00e1rom raketov\u00e9ho zbrojenia a s\u00fa\u010dasne sa nane nezapochybovali, nemeck\u00fd elektroin\u017einier Walter Bruch navrhol takzvan\u00fd CCTV syst\u00e9m (Closed Circuit Television \u2014 syst\u00e9m uzatvoren\u00e9ho okruhu telev\u00edzie). Potrebn\u00e9 vybavenie bolo nain\u0161talovan\u00e9 na testovacej ploche v Peenem\u00fcnde. V\u00fdrobok nemeck\u00e9ho elektroin\u017einiera umo\u017enil vedcom sledova\u0165 priebeh testovania z bezpe\u010dnej vzdialenosti 2,5 kilometra, bez ob\u00e1v o vlastn\u00fd \u017eivot.<\/p>\n<p>Napriek v\u0161etk\u00fdm v\u00fdhod\u00e1m mala syst\u00e9m videa doh\u013eadu Bruha ve\u013emi zna\u010dn\u00fa nev\u00fdhodu: ch\u00fdbalo v \u0148om zariadenie na videoz\u00e1znam, a teda oper\u00e1tor sa nemohol ani na sekundu vzdiali\u0165 zo svojho pracovn\u00e9ho miesta. Z\u00e1va\u017enos\u0165 tohto probl\u00e9mu umo\u017e\u0148uje oceni\u0165 v\u00fdskum, ktor\u00fd vykonala IMS Research v s\u00fa\u010dasnosti. Pod\u013ea jeho v\u00fdsledkov fyzicky zdrav\u00fd, dobre odpo\u010dinut\u00fd \u010dlovek zme\u0161k\u00e1 a\u017e 45 % d\u00f4le\u017eit\u00fdch udalost\u00ed u\u017e po 12 min\u00fatach sledovania, a po 22 min\u00fatach dosiahne tento ukazovate\u013e hodnotu 95 %. A ak v oblasti sk\u00fa\u0161ania raketov\u00fdch zbran\u00ed t\u00e1to skuto\u010dnos\u0165 nehrala osobitn\u00fa \u00falohu, preto\u017ee vedcom nebolo potrebn\u00e9 sedie\u0165 pred obrazovkami nieko\u013eko hod\u00edn za sebou, tak v s\u00favislosti s bezpe\u010dnostn\u00fdmi syst\u00e9mami absence mo\u017enosti videoz\u00e1znamu v\u00fdrazne ovplyvnila ich efektivitu.<\/p>\n<p>Takto to trvalo a\u017e do roku 1956, ke\u010f uzrel svetlo prv\u00fd videorekord\u00e9r Ampex VR 1000, vytvoren\u00fd op\u00e4\u0165 na\u0161\u00edm b\u00fdval\u00fdm krajanom Alexandrom Matvejevi\u010dom Poniatovom. Podobne ako Zvorikin, vedec zaujal stranu Bielych, po por\u00e1\u017eke ktor\u00fdch najprv emigroval do \u010c\u00edny, kde pracoval 7 rokov v jednej z elektr\u00e1rensk\u00fdch spolo\u010dnost\u00ed v \u0160anghaji, a potom nejak\u00fd \u010das \u017eil vo Franc\u00fazsku, po \u010dom na konci 20. rokov 20. storo\u010dia natrvalo pres\u0165ahoval do USA a v roku 1932 z\u00edskal americk\u00e9 ob\u010dianstvo.<\/p>\n<p><img decoding=\"async\" alt=\"K\u013e\u00fa\u010dov\u00e9 m\u00ed\u013eniky v hist\u00f3rii v\u00fdvoja syst\u00e9mov videodoh\u013eadu\" src=\"\/wp-content\/uploads\/2020\/10\/7b13c1d77b64eaf9bac18155e9b6cf9c.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>Aleksandr Matvejevi\u010d Poniatov a prototyp prv\u00e9ho na svete videorekord\u00e9ra Ampex VR 1000<\/i><\/p>\n<p>Po\u010das nasleduj\u00facich 12 rokov Poniatov stihol pracova\u0165 v tak\u00fdch spolo\u010dnostiach, ako s\u00fa General Electric, Pacific Gas and Electric a Dalmo-Victor Westinghouse, av\u0161ak v roku 1944 sa rozhodol zalo\u017ei\u0165 vlastn\u00fa firmu a registroval Ampex Electric and Manufacturing Company. Na za\u010diatku sa Ampex \u0161pecializoval na v\u00fdrobu vysoko presn\u00fdch pohonov pre r\u00e1dioloka\u010dn\u00e9 syst\u00e9my, av\u0161ak po vojne bola \u010dinnos\u0165 spolo\u010dnosti preorientovan\u00e1 na perspekt\u00edvnej\u0161\u00ed smer - v\u00fdrobu zariaden\u00ed na magnetick\u00fd z\u00e1znam zvuku. V obdob\u00ed od 1947 do 1953 spolo\u010dnos\u0165 Poniatova vydala nieko\u013eko ve\u013emi \u00faspe\u0161n\u00fdch modelov magnetof\u00f3nov, ktor\u00e9 na\u0161li uplatnenie v oblasti profesion\u00e1lnej \u017eurnalistiky.<\/p>\n<p>V roku 1951 sa Poniatow a jeho hlavn\u00ed technick\u00ed poradcovia Charles Ginsburg, Wlater Selsted a Miron Stolyarov rozhodli posun\u00fa\u0165 veci \u010falej a vyvin\u00fa\u0165 videoz\u00e1znamov\u00e9 zariadenie. V tom istom roku vytvorili prototyp Ampex VR 1000B, ktor\u00fd vyu\u017e\u00edval princ\u00edp prie\u010dneho z\u00e1znamu inform\u00e1ci\u00ed ot\u00e1\u010daj\u00facimi sa magnetick\u00fdmi hlavami. Tak\u00e1to kon\u0161trukcia umo\u017enila zabezpe\u010di\u0165 potrebn\u00fa \u00farove\u0148 v\u00fdkonu na z\u00e1znam telev\u00edzneho sign\u00e1lu s frekvenciou nieko\u013eko megahertzov.<\/p>\n<p><img decoding=\"async\" alt=\"K\u013e\u00fa\u010dov\u00e9 m\u00ed\u013eniky v hist\u00f3rii v\u00fdvoja syst\u00e9mov videodoh\u013eadu\" src=\"\/wp-content\/uploads\/2020\/10\/bdcd48cb3ba47444c062570b4c804a85.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>Sch\u00e9ma prie\u010dneho z\u00e1znamu videosign\u00e1lu<\/i><\/p>\n<p>Prv\u00fd komer\u010dn\u00fd model s\u00e9rie Apex VR 1000 uzrel svetlo sveta o 5 rokov nesk\u00f4r. V \u010dase vydania sa zariadenie pred\u00e1valo za 50 000 dol\u00e1rov, \u010do bola vtedy obrovsk\u00e1 suma. Pre porovnanie: vyr\u00e1ban\u00e9 v tom istom roku Chevy Corvette pon\u00fakali za iba 3000 dol\u00e1rov, pri\u010dom toto auto patrilo, na min\u00fatu, do kateg\u00f3rie \u0161portov\u00fdch \u00e1ut.<\/p>\n<p>Pr\u00e1ve vysok\u00e1 cena zariaden\u00ed dlhodobo obmedzovala rozvoj videon\u00e1j\u010dovania. Aby sa ilustroval tento fakt, sta\u010d\u00ed poveda\u0165, \u017ee pri pr\u00edprave na n\u00e1v\u0161tevu thajskej kr\u00e1\u013eovskej rodiny v Lond\u00fdne pol\u00edcia nain\u0161talovala na Trafalgarskom n\u00e1mest\u00ed iba 2 kamery (a to \u2013 na zabezpe\u010denie bezpe\u010dnosti najvy\u0161\u0161\u00edch predstavite\u013eov \u0161t\u00e1tu), pri\u010dom po skon\u010den\u00ed v\u0161etk\u00fdch podujat\u00ed bol bezpe\u010dnostn\u00fd syst\u00e9m demontovan\u00fd.<\/p>\n<p><img decoding=\"async\" alt=\"K\u013e\u00fa\u010dov\u00e9 m\u00ed\u013eniky v hist\u00f3rii v\u00fdvoja syst\u00e9mov videodoh\u013eadu\" src=\"\/wp-content\/uploads\/2020\/10\/bd1148f3bc0125b36d2fb9a2db94786f.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>Kr\u00e1\u013eovn\u00e1 Spojen\u00e9ho kr\u00e1\u013eovstva Al\u017ebeta II. a princ Philip, vojvoda z Edinburghu, prij\u00edmaj\u00fa kr\u00e1\u013ea Thajska Phumiphona a kr\u00e1\u013eovn\u00fa Sirikit.<\/i><\/p>\n<p>Zavedenie funkci\u00ed pribl\u00ed\u017eenia, panor\u00e1movania a oto\u010denia na \u010dasova\u010di umo\u017enilo optimalizova\u0165 n\u00e1klady na budovanie bezpe\u010dnostn\u00fdch syst\u00e9mov zn\u00ed\u017een\u00edm po\u010dtu zariaden\u00ed potrebn\u00fdch na monitorovanie \u00fazemia. Realiz\u00e1cia podobn\u00fdch projektov si v\u0161ak st\u00e1le vy\u017eadovala zna\u010dn\u00e9 finan\u010dn\u00e9 invest\u00edcie. Napr\u00edklad mestsk\u00fd kamerov\u00fd syst\u00e9m vyvinut\u00fd pre mesto Olean (\u0161t\u00e1t New York), ktor\u00fd bol uveden\u00fd do prev\u00e1dzky v roku 1968, st\u00e1l mestsk\u00e9 \u00farady 1,4 mili\u00f3na dol\u00e1rov a na jeho rozmiestnenie bolo potrebn\u00e9 2 roky. A samozrejme, o \u017eiadnom nepretr\u017eitom nahr\u00e1van\u00ed sa vtedy nedalo ani hovori\u0165: videorekord\u00e9r sa zap\u00ednal len na pr\u00edkaz oper\u00e1tora, preto\u017ee aj film, aj samotn\u00e9 zariadenie boli pr\u00edli\u0161 drah\u00e9 a prev\u00e1dzka v re\u017eime 24\/7 nebola v\u00f4bec myslite\u013en\u00e1.<\/p>\n<p>V\u0161etko sa zmenilo s roz\u0161\u00edren\u00edm \u0161tandardu VHS, za ktor\u00fd v\u010fa\u010d\u00edme japonsk\u00e9mu in\u017einierovi Shizuo Takano, ktor\u00fd pracoval vo firme JVC.<\/p>\n<p><img decoding=\"async\" alt=\"K\u013e\u00fa\u010dov\u00e9 m\u00ed\u013eniky v hist\u00f3rii v\u00fdvoja syst\u00e9mov videodoh\u013eadu\" src=\"\/wp-content\/uploads\/2020\/10\/150916916e710064e80f8f0ff076331d.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>Shizuo Takano, tvorca form\u00e1tu VHS<\/i><\/p>\n<p>Form\u00e1t predpokladal pou\u017eitie azimutov\u00e9ho z\u00e1znamu, pri\u010dom boli zapojen\u00e9 dve videohlavy. Ka\u017ed\u00e1 z nich nahr\u00e1vala jedno telev\u00edzne pole a mala pracovn\u00e9 medzery odch\u00fdlen\u00e9 od kolm\u00e9 smeru o rovnak\u00fd uhol 6\u00b0 do opa\u010dn\u00fdch str\u00e1n, \u010do umo\u017enilo zn\u00ed\u017ei\u0165 kr\u00ed\u017eov\u00e9 ru\u0161enie medzi susedn\u00fdmi video stopami a v\u00fdrazne zmen\u0161i\u0165 vzdialenos\u0165 medzi nimi, \u010d\u00edm sa zv\u00fd\u0161ila hustota z\u00e1znamu. Videohlavy boli umiestnen\u00e9 na bic\u00edch s priemerom 62 mm, rotuj\u00facich r\u00fdchlos\u0165ou 1500 ot\u00e1\u010dok za min\u00fatu. Okrem \u0161ikm\u00fdch stopiek videoz\u00e1znamu sa pozd\u013a\u017e hornej hrany magnetick\u00e9ho p\u00e1su nahr\u00e1vali dve stopy zvukov\u00e9ho sprievodu oddelen\u00e9 ochrannou medzerou. Pozd\u013a\u017e dolnej hrany p\u00e1su sa nahr\u00e1vala riadiaca stopa obsahuj\u00faca sn\u00edmkov\u00e9 synchroniza\u010dn\u00e9 impulzy.<\/p>\n<p>Pri pou\u017eit\u00ed form\u00e1tu VHS sa na kazetu zaznamen\u00e1val kompozitn\u00fd videosign\u00e1l, \u010do umo\u017enilo ob\u00eds\u0165 sa s jedin\u00fdm komunika\u010dn\u00fdm kan\u00e1lom a z\u00e1sadne u\u013eah\u010dilo prep\u00e1janie medzi prij\u00edmac\u00edm a pren\u00e1\u0161ac\u00edm zariaden\u00edm. Okrem toho, na rozdiel od popul\u00e1rnych form\u00e1tov Betamax a U-matic, kde sa pou\u017e\u00edval U-tvar mechanizmu nalo\u017eenia magnetickej p\u00e1sky s ot\u00e1\u010daj\u00facou sa platformou, \u010do bolo charakteristick\u00e9 pre v\u0161etky predch\u00e1dzaj\u00face kasetov\u00e9 syst\u00e9my, bol form\u00e1t VHS zalo\u017een\u00fd na novom princ\u00edpe takzvanej M-nalo\u017eenia.<\/p>\n<p><img decoding=\"async\" alt=\"K\u013e\u00fa\u010dov\u00e9 m\u00ed\u013eniky v hist\u00f3rii v\u00fdvoja syst\u00e9mov videodoh\u013eadu\" src=\"\/wp-content\/uploads\/2020\/10\/49919753b8c20b9868f80b9fae005b72.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>Sch\u00e9ma M-nalo\u017eenia magnetickej p\u00e1sky v kazete VHS<\/i><\/p>\n<p>Vytiahnutie a nalo\u017eenie magnetickej p\u00e1sky sa uskuto\u010d\u0148ovalo pomocou dvoch ved\u00facich vidl\u00edc, pri\u010dom ka\u017ed\u00e1 bola zlo\u017een\u00e1 z vertik\u00e1lneho valca a naklonenej valcovej stojky, ur\u010duj\u00facej presn\u00fd uhol vstupon p\u00e1sky na bubon ot\u00e1\u010daj\u00facich sa hl\u00e1v, ktor\u00fd zabezpe\u010doval sklon cesty videonahr\u00e1vky k z\u00e1kladn\u00e9mu okraju. Uhly vstuponu a v\u00fdstupu p\u00e1sky z bubna sa rovnali uhlom sklonu plochy ot\u00e1\u010dania bubna k z\u00e1kladu mechanizmu, v\u010faka \u010domu sa oba valce kazety nach\u00e1dzali v jednej rovine.<\/p>\n<p>Mechanizmus M-nalo\u017eenia sa uk\u00e1zal by\u0165 spo\u013eahlivej\u0161\u00edm a pom\u00e1hal zn\u00ed\u017ei\u0165 mechanick\u00e9 za\u0165a\u017eenie na p\u00e1sku. Absencia ot\u00e1\u010daj\u00facej sa platformy zjednodu\u0161ovala v\u00fdrobu ako samotn\u00fdch kaziet, tak aj videomagnetof\u00f3nov, \u010do priaznivo ovplyvnilo ich v\u00fdrobn\u00e9 n\u00e1klady. Ve\u013emi v\u010faka tomu VHS bezpe\u010dne vyhral v \"vojne form\u00e1tov\", \u010d\u00edm sa videodoh\u013ead stal naozaj dostupn\u00fdm.<\/p>\n<p>Videokamery tie\u017e nezost\u00e1vali pozadu: na miesto zariaden\u00ed s elektr\u00f3novou trubicou pri\u0161li modely vyroben\u00e9 na b\u00e1ze CCD senzorov. Svet v\u010fa\u010d\u00ed za vznik posledn\u00fdch Willardovi Boyleovi a Georgeovi Smithovi, ktor\u00ed pracovali v AT&amp;T Bell Labs na polovodi\u010dov\u00fdch pam\u00e4tiach. Po\u010das svojich v\u00fdskumov fyzici zistili, \u017ee vytvoren\u00e9 integrovan\u00e9 obvody podliehaj\u00fa p\u00f4sobeniu fotoelektrick\u00e9ho efektu. U\u017e v roku 1970 Boyle a Smith predstavili prv\u00e9 line\u00e1rne fotoprij\u00edma\u010de (CCD l\u00ednie).<\/p>\n<p>V roku 1973 za\u010dala spolo\u010dnos\u0165 Fairchild masov\u00fa v\u00fdrobu PZC matr\u00edc s rozl\u00ed\u0161en\u00edm 100 \u00d7 100 pixelov a v roku 1975 Steve Sasson z firmy Kodak vytvoril na z\u00e1klade takejto matrice prv\u00fd digit\u00e1lny fotoapar\u00e1t. Av\u0161ak jeho pou\u017e\u00edvanie bolo \u00faplne nemo\u017en\u00e9, preto\u017ee proces vytv\u00e1rania obrazu trval 23 sek\u00fand a jeho n\u00e1sledn\u00fd z\u00e1znam na 8-milimetrov\u00fa kazetu trval o 50 % dlh\u0161ie. Okrem toho sa ako zdroj nap\u00e1jania pre kameru pou\u017e\u00edvalo 16 nikl-kadmiov\u00fdch bat\u00e9ri\u00ed, a v\u0161etko to v\u00e1\u017eilo 3,6 kg.<\/p>\n<p><img decoding=\"async\" alt=\"K\u013e\u00fa\u010dov\u00e9 m\u00ed\u013eniky v hist\u00f3rii v\u00fdvoja syst\u00e9mov videodoh\u013eadu\" src=\"\/wp-content\/uploads\/2020\/10\/196a7e4dd23d918e5d139e3d1e12b9d9.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>Steve Sasson a prv\u00fd digit\u00e1lny fotoapar\u00e1t Kodak v porovnan\u00ed so s\u00fa\u010dasn\u00fdmi \"kompaktami\"<\/i><\/p>\n<p>Najv\u00e4\u010d\u0161\u00ed pr\u00ednos do rozvoja trhu digit\u00e1lnych kamier vlo\u017eila korpor\u00e1cia Sony a osobne Kazuo Iwama, ktor\u00fd v t\u00fdch rokoch viedol Sony Corporation of America. Pr\u00e1ve on sa zasadil o investovanie obrovsk\u00fdch prostriedkov do v\u00fdvoja vlastn\u00fdch PZC \u010dipov, v\u010faka \u010domu spolo\u010dnos\u0165 u\u017e v roku 1980 predstavila prv\u00fa farebn\u00fa PZC videokameru XC-1. Po smrti Kazuoa v roku 1982 bola na jeho hrobke osaden\u00e1 n\u00e1hrobn\u00e1 doska so zabudovanou PZC matricou. <\/p>\n<p><img decoding=\"async\" alt=\"K\u013e\u00fa\u010dov\u00e9 m\u00ed\u013eniky v hist\u00f3rii v\u00fdvoja syst\u00e9mov videodoh\u013eadu\" src=\"\/wp-content\/uploads\/2020\/10\/4e6079f927ae922dcb7edb0d70ff6473.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>Kazuo Iwama, prezident Sony Corporation of America v 70. rokoch XX. storo\u010dia<\/i><\/p>\n<p>September 1996 sa stal svedkom udalosti, ktor\u00fa mo\u017eno porovna\u0165 s vyn\u00e1lezom ikonosc\u00f3pu. Vtedy \u0161v\u00e9dska spolo\u010dnos\u0165 Axis Communications predstavila prv\u00fa na svete \"digit\u00e1lnu kameru s funkciami webov\u00e9ho servera\" NetEye 200.<\/p>\n<p><img decoding=\"async\" alt=\"K\u013e\u00fa\u010dov\u00e9 m\u00ed\u013eniky v hist\u00f3rii v\u00fdvoja syst\u00e9mov videodoh\u013eadu\" src=\"\/wp-content\/uploads\/2020\/10\/0930a082a2c383359eef598f7b10b53b.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>Axis Neteye 200 \u2014 prv\u00e1 na svete IP kamera<\/i><\/p>\n<p>Aj po\u010das vydania NetEye 200 \u0165a\u017eko ozna\u010di\u0165 za videokameru v tradi\u010dnom zmysle slova. Zariadenie zaost\u00e1valo za svojimi konkurentmi doslova vo v\u0161etk\u00fdch aspektoch: jeho v\u00fdkon sa pohyboval od 1 sn\u00edmky za sekundu vo form\u00e1te CIF (352 \u00d7 288, alebo 0,1 Mpx) a\u017e po 1 sn\u00edmku za 17 sek\u00fand v 4CIF (704 \u00d7 576, 0,4 Mpx), pri\u010dom z\u00e1znam sa uklad\u00e1 dokonca nie do samostatn\u00e9ho s\u00faboru, ale do sekvencie JPEG obr\u00e1zkov. Napriek tomu hlavnou vymo\u017eenos\u0165ou v\u00fdrobku spolo\u010dnosti Axis nebola ani r\u00fdchlos\u0165 sn\u00edmania, ani ostros\u0165 obrazu, ale pr\u00edtomnos\u0165 vlastn\u00e9ho RISC procesora ETRAX a zabudovan\u00e9ho Ethernet portu 10Base-T, \u010do umo\u017enilo pripoji\u0165 kameru priamo k routeru alebo sie\u0165ovej karte po\u010d\u00edta\u010da ako be\u017en\u00e9 sie\u0165ov\u00e9 zariadenie a ovl\u00e1da\u0165 ju s pomocou dod\u00e1van\u00fdch Java aplik\u00e1ci\u00ed. Pr\u00e1ve tento inovat\u00edvny pr\u00edstup z\u00e1sadne prehodnotil poh\u013eady mnoh\u00fdch v\u00fdrobcov syst\u00e9mov videodoh\u013eadu a na dlh\u00e9 roky ur\u010dil v\u0161eobecn\u00fd smer rozvoja odvetvia. <\/p>\n<h2>Viac mo\u017enost\u00ed \u2014 vy\u0161\u0161ie n\u00e1klady<\/h2>\n<p>\nNapriek dramatick\u00e9mu pokroku technol\u00f3gi\u00ed, aj po to\u013ek\u00fdch rokoch zost\u00e1va finan\u010dn\u00fd aspekt jedn\u00fdm z k\u013e\u00fa\u010dov\u00fdch faktorov pri navrhovan\u00ed syst\u00e9mov videodoh\u013eadu. Hoci technick\u00fd pokrok v\u00fdrazne zni\u017eoval n\u00e1klady na vybavenie, \u010do dnes umo\u017e\u0148uje zlo\u017ei\u0165 syst\u00e9m porovnate\u013en\u00fd s t\u00fdm, ktor\u00fd bol nain\u0161talovan\u00fd na konci 60-tych rokov v Oleane, len za nieko\u013eko stoviek dol\u00e1rov a p\u00e1r hod\u00edn re\u00e1lneho \u010dasu, tak\u00e1to infra\u0161trukt\u00fara u\u017e nedok\u00e1\u017ee uspokoji\u0165 mnohon\u00e1sobne zv\u00fd\u0161en\u00e9 po\u017eiadavky modern\u00e9ho podnikania.<\/p>\n<p>Ve\u013emi to s\u00favis\u00ed so zmenou prior\u00edt. K\u00fdm predt\u00fdm sa videodoh\u013ead pou\u017e\u00edval len na zabezpe\u010denie str\u00e1\u017een\u00e9ho \u00fazemia, dnes je hlavn\u00fdm motorom rozvoja priemyslu (pod\u013ea prieskumu Transparency Market Research) maloobchod, ktor\u00e9mu tieto syst\u00e9my pom\u00e1haj\u00fa rie\u0161i\u0165 r\u00f4zne marketingov\u00e9 \u00falohy. Typick\u00fdm scen\u00e1rom je ur\u010denie konverzn\u00e9ho pomeru na z\u00e1klade \u00fadajov o po\u010dte n\u00e1v\u0161tevn\u00edkov a po\u010dte z\u00e1kazn\u00edkov, ktor\u00ed pre\u0161li cez pokladne. Ak sem prid\u00e1me syst\u00e9m rozpozn\u00e1vania tv\u00e1re a integrujeme ho s existuj\u00facim vernostn\u00fdm programom, z\u00edskame mo\u017enos\u0165 sk\u00fama\u0165 spr\u00e1vanie z\u00e1kazn\u00edkov v s\u00favislosti so socio-demografick\u00fdmi faktormi na formovanie personalizovan\u00fdch pon\u00fak (individu\u00e1lne z\u013eavy, z\u013eavov\u00e9 bal\u00ed\u010dky at\u010f.).<\/p>\n<p>Probl\u00e9m spo\u010d\u00edva v tom, \u017ee implement\u00e1cia takejto videoanalyznej s\u00fastavy so sebou nesie zna\u010dn\u00e9 kapit\u00e1lov\u00e9 a prev\u00e1dzkov\u00e9 n\u00e1klady. Kame\u0148om \u00farazu je tu rozpozn\u00e1vanie tv\u00e1r\u00ed z\u00e1kazn\u00edkov. Jedna vec je skenovanie tv\u00e1re z \u010deln\u00e9ho poh\u013eadu pri bezkontaktn\u00fdch platb\u00e1ch na pokladni a \u00faplne nie\u010do in\u00e9 - v pr\u00fade (v obchodnej s\u00e1le), z r\u00f4znych uhlov a za r\u00f4znych sveteln\u00fdch podmienok. Tu dosiahne dostato\u010dn\u00fa efekt\u00edvnos\u0165 len trojrozmern\u00e9 modelovanie tv\u00e1r\u00ed v re\u00e1lnom \u010dase s vyu\u017eit\u00edm stereokamier a algoritmov strojov\u00e9ho u\u010denia, \u010do nevyhnutne povedie k zv\u00fd\u0161eniu z\u00e1\u0165a\u017ee na cel\u00fa infra\u0161trukt\u00faru.<\/p>\n<p>S oh\u013eadom na to spolo\u010dnos\u0165 Western Digital vyvinula koncepciu Core to Edge storage for Surveillance, pon\u00fakaj\u00fac klientom komplexn\u00fd s\u00fabor modern\u00fdch rie\u0161en\u00ed pre syst\u00e9my videonahr\u00e1vania \u201eod kamery po server\u201c. Kombin\u00e1cia pokrokov\u00fdch technol\u00f3gi\u00ed, spo\u013eahlivosti, kapacity a v\u00fdkonu umo\u017e\u0148uje vytvori\u0165 harmonick\u00fa ekosyst\u00e9mu, schopn\u00fa rie\u0161i\u0165 takmer ak\u00fako\u013evek zadan\u00fa \u00falohu, a optimalizova\u0165 n\u00e1klady na jej roz\u0161\u00edrenie a \u00fadr\u017ebu.<\/p>\n<p>Flagmanov\u00fdm portf\u00f3liom na\u0161ej spolo\u010dnosti je rodina \u0161pecializovan\u00fdch pevn\u00fdch diskov pre syst\u00e9my videodoh\u013eadu WD Purple s kapacitou od 1 do 18 terabajtov. <\/p>\n<p><img decoding=\"async\" alt=\"K\u013e\u00fa\u010dov\u00e9 m\u00ed\u013eniky v hist\u00f3rii v\u00fdvoja syst\u00e9mov videodoh\u013eadu\" src=\"\/wp-content\/uploads\/2020\/10\/fa9ea40648a108dec6823713bdcc59f9.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\nDisky purpurovej s\u00e9rie boli \u0161peci\u00e1lne navrhnut\u00e9 pre nepretr\u017eit\u00fa prev\u00e1dzku v r\u00e1mci syst\u00e9mov vysokej defin\u00edcie videodoh\u013eadu a zah\u0155\u0148aj\u00fa najnov\u0161ie dosiahnutia spolo\u010dnosti Western Digital v oblasti v\u00fdroby pevn\u00fdch diskov.<\/p>\n<ul>\n<li><b>Platforma HelioSeal<\/b><\/li>\n<\/ul>\n<p>\nVy\u0161\u0161ie modely radu WD Purple s kapacitou od 8 do 18 TB s\u00fa postaven\u00e9 na platforme HelioSeal. Skrinky t\u00fdchto diskov s\u00fa absol\u00fatne hermetick\u00e9 a hermetick\u00e9 bloky s\u00fa naplnen\u00e9 nie vzduchom, ale zrieden\u00fdm h\u00e9liom. Zn\u00ed\u017eenie odporu plynn\u00e9ho prostredia a turbulencie umo\u017enilo zmen\u0161i\u0165 hr\u00fabku magnetick\u00fdch platn\u00ed, ako aj dosiahnu\u0165 vy\u0161\u0161iu hustotu z\u00e1pisu met\u00f3dou CMR v\u010faka zlep\u0161enej presnosti polohovania hlavy (s vyu\u017eit\u00edm Advanced Format Technology). V d\u00f4sledku toho prechod na WD Purple zaru\u010duje n\u00e1rast kapacity a\u017e o 75% v rovnak\u00fdch stojanoch, bez potreby roz\u0161\u00edrenia infra\u0161trukt\u00fary. Okrem toho s\u00fa disky s h\u00e9liom a\u017e o 58% energeticky efekt\u00edvnej\u0161ie v porovnan\u00ed s oby\u010dajn\u00fdmi HDD zn\u00ed\u017een\u00edm spotreby energie potrebnej na rozto\u010denie a ot\u00e1\u010danie vretienka. Dodato\u010dn\u00e9 \u00faspory s\u00fa zabezpe\u010den\u00e9 aj zn\u00ed\u017een\u00edm n\u00e1kladov na klimatiz\u00e1ciu: pri rovnakej z\u00e1\u0165a\u017ei je WD Purple v priemere o 5 \u00b0C chladnej\u0161\u00ed ako jeho anal\u00f3gy.<\/p>\n<ul>\n<li><b>Technol\u00f3gia AllFrame AI<\/b><\/li>\n<\/ul>\n<p>\nNajmen\u0161ie v\u00fdpadky po\u010das z\u00e1pisu m\u00f4\u017eu vies\u0165 k strate kriticky d\u00f4le\u017eit\u00fdch videod\u00e1t, \u010do znemo\u017en\u00ed n\u00e1sledn\u00fa anal\u00fdzu z\u00edskan\u00fdch inform\u00e1ci\u00ed. Aby sa tomu predi\u0161lo, do firmv\u00e9ru diskov purpurovej s\u00e9rie bola zaveden\u00e1 podpora volite\u013en\u00e9ho oddielu Streaming Feature Set protokolu ATA. Medzi jeho schopnosti patr\u00ed optimaliz\u00e1cia vyu\u017eitia cache v z\u00e1vislosti od po\u010dtu spracov\u00e1van\u00fdch video streamov a spr\u00e1va priority vykon\u00e1vania pr\u00edkazov \u010d\u00edtania\/z\u00e1pisu, v\u010faka \u010domu sa minimalizuje pravdepodobnos\u0165 vynechania sn\u00edmok a objavenia artefaktov na obraze. Na druhej strane inovat\u00edvny s\u00fabor algoritmov AllFrame AI umo\u017e\u0148uje prev\u00e1dzku pevn\u00fdch diskov v syst\u00e9moch spracov\u00e1vaj\u00facich v\u00fdznamn\u00fd po\u010det izochronn\u00fdch tokov: disky WD Purple podporuj\u00fa s\u00fa\u010dasn\u00fd chod s 64 kamerami vysok\u00e9ho rozl\u00ed\u0161enia a s\u00fa optimalizovan\u00e9 pre syst\u00e9my s vysok\u00fdm za\u0165a\u017een\u00edm videoanalytiky a Deep Learning.<\/p>\n<ul>\n<li><b>Technol\u00f3gia Time Limited Error Recovery<\/b><\/li>\n<\/ul>\n<p>\nJedn\u00fdm z be\u017en\u00fdch probl\u00e9mov pri pr\u00e1ci s vysokon\u00e1kladov\u00fdmi syst\u00e9mami <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/sk\/server\/dts-dusseldorf\/\"   title=\"servermi\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"3437\">servermi<\/a> je spont\u00e1nny rozpad RAID po\u013ea, ktor\u00fd je sp\u00f4soben\u00fd prekro\u010den\u00edm pr\u00edpustn\u00e9ho \u010dasu opravy ch\u00fdb. Mo\u017enos\u0165 Time Limited Error Recovery pom\u00e1ha zabr\u00e1ni\u0165 vypnutiu HDD v pr\u00edpade, ak \u010dasov\u00fd limit presiahne 7 sek\u00fand: aby sa tomu zabr\u00e1nilo, disk po\u0161le RAID ovl\u00e1da\u010du pr\u00edslu\u0161n\u00fd sign\u00e1l, po ktorom bude proced\u00fara opravy odlo\u017een\u00e1 do okamihu ne\u010dinnosti syst\u00e9mu.<\/p>\n<ul>\n<li><b>Syst\u00e9m monitorovania Western Digital Device Analytics<\/b><\/li>\n<\/ul>\n<p>\nK\u013e\u00fa\u010dov\u00e9 \u00falohy, ktor\u00e9 treba vyrie\u0161i\u0165 pri navrhovan\u00ed syst\u00e9mov videozabezpe\u010denia, s\u00fa predl\u017eenie obdobia bezporuchov\u00e9ho fungovania a skr\u00e1tenie \u010dasu prestojov v d\u00f4sledku por\u00fach. S pomocou inovat\u00edvneho softv\u00e9rov\u00e9ho komplexu Western Digital Device Analytics (WDDA) administr\u00e1tor z\u00edska pr\u00edstup k mno\u017estvu parametrov\u00fdch, prev\u00e1dzkov\u00fdch a diagnostick\u00fdch \u00fadajov o stave diskov, \u010do umo\u017e\u0148uje r\u00fdchlo odhali\u0165 ak\u00e9ko\u013evek probl\u00e9my v prev\u00e1dzke syst\u00e9mu videozabezpe\u010denia, pl\u00e1nova\u0165 technick\u00fa \u00fadr\u017ebu a v\u010das identifikova\u0165 pevn\u00e9 disky, ktor\u00e9 je potrebn\u00e9 vymeni\u0165. To v\u0161etko pom\u00e1ha v\u00fdrazne zv\u00fd\u0161i\u0165 odolnos\u0165 bezpe\u010dnostnej infra\u0161trukt\u00fary a minimalizova\u0165 pravdepodobnos\u0165 straty kriticky d\u00f4le\u017eit\u00fdch \u00fadajov.<\/p>\n<p>\u0160peci\u00e1lne pre modern\u00e9 digit\u00e1lne kamery vyvinul Western Digital radu vysoko spo\u013eahliv\u00fdch pam\u00e4\u0165ov\u00fdch kariet WD Purple. Roz\u0161\u00edren\u00fd cyklus prepisovania a odolnos\u0165 vo\u010di negat\u00edvnym vonkaj\u0161\u00edm vplyvom umo\u017e\u0148uj\u00fa pou\u017e\u00edva\u0165 tieto karty pre zariadenia ako vn\u00fatorn\u00e9, tak aj vonkaj\u0161ie kamery videozabezpe\u010denia, ako aj pre prev\u00e1dzku v r\u00e1mci auton\u00f3mnych bezpe\u010dnostn\u00fdch syst\u00e9mov, kde microSD karty zohr\u00e1vaj\u00fa \u00falohu hlavn\u00fdch \u00falo\u017eisk d\u00e1t.<\/p>\n<p><img decoding=\"async\" alt=\"K\u013e\u00fa\u010dov\u00e9 m\u00ed\u013eniky v hist\u00f3rii v\u00fdvoja syst\u00e9mov videodoh\u013eadu\" src=\"\/wp-content\/uploads\/2020\/10\/1fe1d2ba3ef7ea83f050e65a7a400096.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\nV s\u00fa\u010dasnosti s\u00e9ria pam\u00e4\u0165ov\u00fdch kariet WD Purple obsahuje dve produktov\u00e9 l\u00ednie: WD Purple QD102 a WD Purple SC QD312 Extreme Endurance. Prv\u00e1 skupina obsahuje \u0161tyri varianty flash pam\u00e4t\u00ed s kapacitou od 32 do 256 GB. V porovnan\u00ed s spotrebite\u013esk\u00fdmi rie\u0161eniami boli WD Purple \u0161peci\u00e1lne prisp\u00f4soben\u00e9 modern\u00fdm digit\u00e1lnym syst\u00e9mom videozabezpe\u010denia v\u010faka implement\u00e1cii s\u00e9rie d\u00f4le\u017eit\u00fdch vylep\u0161en\u00ed:<\/p>\n<ul>\n<li>Odolnos\u0165 vo\u010di vlhkosti (v\u00fdrobok je schopn\u00fd vydr\u017ea\u0165 ponorenie do h\u013abky a\u017e 1 meter v sladkej alebo slanej vode) a roz\u0161\u00edren\u00fd rozsah pracovn\u00fdch tepl\u00f4t (od -25 \u00b0C do +85 \u00b0C) umo\u017e\u0148uj\u00fa rovnako efekt\u00edvne vyu\u017eitie kariet WD Purple na vybavenie vn\u00fatorn\u00fdch aj vonkaj\u0161\u00edch zariaden\u00ed na videoz\u00e1znam bez oh\u013eadu na poveternostn\u00e9 a klimatick\u00e9 podmienky;<\/li>\n<li>Ochrana pred vplyvom statick\u00fdch magnetick\u00fdch pol\u00ed s indukciou a\u017e do 5000 Gs a odolnos\u0165 vo\u010di siln\u00fdm vibr\u00e1ci\u00e1m a n\u00e1razom a\u017e do 500 g \u00faplne vylu\u010duj\u00fa pravdepodobnos\u0165 straty criticky d\u00f4le\u017eit\u00fdch \u00fadajov dokonca aj pri po\u0161koden\u00ed videokamery;<\/li>\n<li>Zaru\u010den\u00fd po\u010det 1000 cyklov programovania\/mazania umo\u017e\u0148uje v\u00fdznamne pred\u013a\u017ei\u0165 \u017eivotnos\u0165 pam\u00e4\u0165ov\u00fdch kariet aj v re\u017eime nepretr\u017eit\u00e9ho nahr\u00e1vania a t\u00fdm v\u00fdrazne zn\u00ed\u017ei\u0165 n\u00e1klady na \u00fadr\u017ebu bezpe\u010dnostn\u00e9ho syst\u00e9mu;<\/li>\n<li>Funkcia vzdialen\u00e9ho monitorovania pom\u00e1ha r\u00fdchlo sledova\u0165 stav ka\u017edej karty a efekt\u00edvnej\u0161ie pl\u00e1nova\u0165 vykon\u00e1vanie servisn\u00fdch pr\u00e1c, \u010do znamen\u00e1 dodato\u010dn\u00e9 zv\u00fd\u0161enie spo\u013eahlivosti bezpe\u010dnostnej infra\u0161trukt\u00fary;<\/li>\n<li>Zhodnos\u0165 s triedami r\u00fdchlosti UHS Speed Class 3 a Video Speed Class 30 (pre karty s kapacitou od 128 GB) rob\u00ed karty WD Purple vhodn\u00fdmi na pou\u017eitie v kamer\u00e1ch s vysok\u00fdm rozl\u00ed\u0161en\u00edm, vr\u00e1tane panoramatick\u00fdch modelov.<\/li>\n<\/ul>\n<p>\nRada WD Purple SC QD312 Extreme Endurance obsahuje tri modely: s kapacitou 64, 128 a 256 gigabajtov. Na rozdiel od WD Purple QD102, tieto pam\u00e4\u0165ov\u00e9 karty s\u00fa schopn\u00e9 vydr\u017ea\u0165 zna\u010dne v\u00e4\u010d\u0161ie za\u0165a\u017eenie: ich pracovn\u00fd cyklus \u010din\u00ed 3000 cyklov P\/E, \u010do rob\u00ed tieto USB k\u013e\u00fa\u010diky ide\u00e1lnym rie\u0161en\u00edm na prev\u00e1dzku na osobne chr\u00e1nen\u00fdch objektoch, kde sa nahr\u00e1va v re\u017eime 24\/7.<br \/>\n<br \/>Zdroj: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/wd\/blog\/523652\/\">habr.com<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0424\u0443\u043d\u043a\u0446\u0438\u0438 \u0441\u043e\u0432\u0440\u0435\u043c\u0435\u043d\u043d\u044b\u0445 \u0441\u0438\u0441\u0442\u0435\u043c \u043d\u0430\u0431\u043b\u044e\u0434\u0435\u043d\u0438\u044f \u0434\u0430\u0432\u043d\u043e \u0432\u044b\u0448\u043b\u0438 \u0437\u0430 \u0440\u0430\u043c\u043a\u0438 \u0432\u0438\u0434\u0435\u043e\u0444\u0438\u043a\u0441\u0430\u0446\u0438\u0438 \u043a\u0430\u043a \u0442\u0430\u043a\u043e\u0432\u043e\u0439. \u041e\u043f\u0440\u0435\u0434\u0435\u043b\u0435\u043d\u0438\u0435 \u0434\u0432\u0438\u0436\u0435\u043d\u0438\u044f \u0432 \u0437\u043e\u043d\u0435 \u0438\u043d\u0442\u0435\u0440\u0435\u0441\u0430, \u043f\u043e\u0434\u0441\u0447\u0435\u0442 \u0438 \u0438\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044f \u043b\u044e\u0434\u0435\u0439 \u0438 \u0442\u0440\u0430\u043d\u0441\u043f\u043e\u0440\u0442\u043d\u044b\u0445 \u0441\u0440\u0435\u0434\u0441\u0442\u0432, \u0432\u0435\u0434\u0435\u043d\u0438\u0435 \u043e\u0431\u044a\u0435\u043a\u0442\u0430 \u0432 \u043f\u043e\u0442\u043e\u043a\u0435 \u2014 \u0441\u0435\u0433\u043e\u0434\u043d\u044f \u043d\u0430 \u0432\u0441\u0435 \u044d\u0442\u043e \u0441\u043f\u043e\u0441\u043e\u0431\u043d\u044b \u0434\u0430\u0436\u0435 \u043d\u0435 \u0441\u0430\u043c\u044b\u0435 \u0434\u043e\u0440\u043e\u0433\u0438\u0435 IP-\u043a\u0430\u043c\u0435\u0440\u044b. \u041f\u0440\u0438 \u043d\u0430\u043b\u0438\u0447\u0438\u0438 \u0436\u0435 \u0434\u043e\u0441\u0442\u0430\u0442\u043e\u0447\u043d\u043e \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0433\u043e \u0441\u0435\u0440\u0432\u0435\u0440\u0430 \u0438 \u043d\u0435\u043e\u0431\u0445\u043e\u0434\u0438\u043c\u043e\u0433\u043e \u041f\u041e \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u0438 \u043e\u0445\u0440\u0430\u043d\u043d\u043e\u0439 \u0438\u043d\u0444\u0440\u0430\u0441\u0442\u0440\u0443\u043a\u0442\u0443\u0440\u044b \u0441\u0442\u0430\u043d\u043e\u0432\u044f\u0442\u0441\u044f \u043f\u0440\u0430\u043a\u0442\u0438\u0447\u0435\u0441\u043a\u0438 \u0431\u0435\u0437\u0433\u0440\u0430\u043d\u0438\u0447\u043d\u044b. \u0410 \u0432\u0435\u0434\u044c [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":97329,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[688],"tags":[],"class_list":["post-97328","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-administrirovanie"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0424\u0443\u043d\u043a\u0446\u0438\u0438 \u0441\u043e\u0432\u0440\u0435\u043c\u0435\u043d\u043d\u044b\u0445 \u0441\u0438\u0441\u0442\u0435\u043c.\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Yuri Gagarin\"\/>\n\t<link rel=\"canonical\" href=\"https:\/\/prohoster.info\/sk\/blog\/administrirovanie\/vazhnejshie-vehi-v-istorii-razvitiya-sistem-videonablyudeniya\" \/>\n\t\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 5.0.3\" \/>\n\t\t<meta property=\"og:locale\" content=\"sk_SK\" \/>\n\t\t<meta property=\"og:site_name\" content=\"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"\ud83e\udd47\u0412\u0430\u0436\u043d\u0435\u0439\u0448\u0438\u0435 \u0432\u0435\u0445\u0438 \u0432 \u0438\u0441\u0442\u043e\u0440\u0438\u0438 \u0440\u0430\u0437\u0432\u0438\u0442\u0438\u044f \u0441\u0438\u0441\u0442\u0435\u043c \u0432\u0438\u0434\u0435\u043e\u043d\u0430\u0431\u043b\u044e\u0434\u0435\u043d\u0438\u044f | ProHoster\" \/>\n\t\t<meta property=\"og:description\" content=\"\u0424\u0443\u043d\u043a\u0446\u0438\u0438 \u0441\u043e\u0432\u0440\u0435\u043c\u0435\u043d\u043d\u044b\u0445 \u0441\u0438\u0441\u0442\u0435\u043c.\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/prohoster.info\/sk\/blog\/administrirovanie\/vazhnejshie-vehi-v-istorii-razvitiya-sistem-videonablyudeniya\" \/>\n\t\t<meta property=\"og:image\" content=\"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg\" \/>\n\t\t<meta property=\"og:image:secure_url\" content=\"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg\" \/>\n\t\t<meta property=\"og:image:width\" content=\"350\" \/>\n\t\t<meta property=\"og:image:height\" content=\"350\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2020-10-17T06:43:09+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2026-05-20T15:45:16+00:00\" \/>\n\t\t<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/prohoster\" \/>\n\t\t<meta property=\"article:author\" content=\"https:\/\/www.facebook.com\/prohoster\" \/>\n\t\t<!-- All in One SEO -->\n\n","aioseo_head_json":{"title":"\ud83e\udd47Najd\u00f4le\u017eitej\u0161ie m\u00ed\u013eniky v hist\u00f3rii v\u00fdvoja syst\u00e9mov videonahr\u00e1vania | ProHoster","description":"Funkcie modern\u00fdch syst\u00e9mov.","canonical_url":"https:\/\/prohoster.info\/sk\/blog\/administrirovanie\/vazhnejshie-vehi-v-istorii-razvitiya-sistem-videonablyudeniya","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"sk_SK","og:site_name":"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b","og:type":"article","og:title":"\ud83e\udd47\u0412\u0430\u0436\u043d\u0435\u0439\u0448\u0438\u0435 \u0432\u0435\u0445\u0438 \u0432 \u0438\u0441\u0442\u043e\u0440\u0438\u0438 \u0440\u0430\u0437\u0432\u0438\u0442\u0438\u044f \u0441\u0438\u0441\u0442\u0435\u043c \u0432\u0438\u0434\u0435\u043e\u043d\u0430\u0431\u043b\u044e\u0434\u0435\u043d\u0438\u044f | ProHoster","og:description":"\u0424\u0443\u043d\u043a\u0446\u0438\u0438 \u0441\u043e\u0432\u0440\u0435\u043c\u0435\u043d\u043d\u044b\u0445 \u0441\u0438\u0441\u0442\u0435\u043c.","og:url":"https:\/\/prohoster.info\/sk\/blog\/administrirovanie\/vazhnejshie-vehi-v-istorii-razvitiya-sistem-videonablyudeniya","og:image":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:secure_url":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:width":350,"og:image:height":350,"article:published_time":"2020-10-17T06:43:09+00:00","article:modified_time":"2026-05-20T15:45:16+00:00","article:publisher":"https:\/\/www.facebook.com\/prohoster","article:author":"https:\/\/www.facebook.com\/prohoster"},"aioseo_meta_data":{"post_id":"97328","title":null,"description":null,"keywords":null,"keyphrases":null,"primary_term":null,"canonical_url":null,"og_title":null,"og_description":null,"og_object_type":"default","og_image_type":"default","og_image_url":null,"og_image_width":null,"og_image_height":null,"og_image_custom_url":null,"og_image_custom_fields":null,"og_video":null,"og_custom_url":null,"og_article_section":null,"og_article_tags":null,"twitter_use_og":false,"twitter_card":"default","twitter_image_type":"default","twitter_image_url":null,"twitter_image_custom_url":null,"twitter_image_custom_fields":null,"twitter_title":null,"twitter_description":null,"schema":{"blockGraphs":[],"customGraphs":[],"default":{"data":{"Article":[],"Course":[],"Dataset":[],"FAQPage":[],"Movie":[],"Person":[],"Product":[],"ProductReview":[],"Car":[],"Recipe":[],"Service":[],"SoftwareApplication":[],"WebPage":[]},"graphName":"","isEnabled":true},"graphs":[]},"schema_type":null,"schema_type_options":null,"pillar_content":false,"robots_default":true,"robots_noindex":false,"robots_noarchive":false,"robots_nosnippet":false,"robots_nofollow":false,"robots_noimageindex":false,"robots_noodp":false,"robots_notranslate":false,"robots_max_snippet":null,"robots_max_videopreview":null,"robots_max_imagepreview":"large","priority":null,"frequency":null,"local_seo":null,"seo_analyzer_scan_date":null,"breadcrumb_settings":null,"limit_modified_date":false,"reviewed_by":null,"ai":null,"created":"2021-02-28 10:22:33","updated":"2026-02-19 09:14:02","focus_keyword":null,"additional_keywords":null,"truseo_locale":null},"gt_translate_keys":[{"key":"link","format":"url"}],"_links":{"self":[{"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/posts\/97328","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/comments?post=97328"}],"version-history":[{"count":1,"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/posts\/97328\/revisions"}],"predecessor-version":[{"id":161812,"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/posts\/97328\/revisions\/161812"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/media\/97329"}],"wp:attachment":[{"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/media?parent=97328"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/categories?post=97328"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/tags?post=97328"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}