Lub koob thaij video zoo rau kev yees duab yuav muab cov ntsiab lus tsim nyog ntawm qhov ntsuas hauv chav nyob los yog hauv qhov chaw uas muaj cov nqi qis tshaj. Tam sim no muaj ntau yam ntawm lawv cov hom phiaj npaj siab, yog li ntawd raws li tsis tau txais tsis meej pem nyob rau hauv xws li ntau yam, nws yog ib qho tseem ceeb los kawm cov yam ntxwv ntawm cov khoom video.
Hom kev yees duab yees duab rau video kev saib xyuas
Ua ntej peb yuav tsum kos daim ntawv tawm rau dab tsi xav tau lub cuab yeej yuav raug siv, nws cov kev tsis. Piv txwv, ua ntej xaiv ib lub koob yees duab sab nraud, nws yog ib qho tseem ceeb kom paub tias lub vaj tse ntawm lub cuab tam yuav tsum tau muab sib khi, dua li nruab nrog kev ua kom sov. Kom txhim kho cov kev taug qab hauv chav tsev, dome lub lag luam uas tsis muaj kev tiv thaiv hoods feem ntau ntsia tau. Ntxiv rau, tag nrho cov video detectors faib ua analogue, digital. Lub ntsiab sib txawv ntawm lawv yog nyob rau hauv txoj kev lub teeb liab video tiav thiab raug xa mus.
Cov video cameras rau video surveillance
Lub siab heev digital IP yees duab rau video saib xyuas cov ntaub ntawv los ntawm hauv daim duab nyob rau hauv digitized daim ntawv ntawm Wi-nkaus, 3G , 4G los yog xaim Internet xa mus rau huab neeg rau zaub mov, PC, DVR. Cov video cameras tsim ib daim duab li HD (720p), Puv HD (1080p), thiab saum toj no - 4K (txog 12Mp). Nyob rau hauv video, koj tuaj yeem saib cov qauv ntawm ib tug neeg, thiab nws lub ntsej muag, ntau yam me me. Yog tias koj tsom ntsoov rau qhov zoo ntawm daim duab (tshwj xeeb tshaj yog thaum nws qhia tseeb), ces thaum txiav txim siab tias cov koob yees duab kev soj xyuas zoo tshaj plaws, koj yuav tsum nres ntawm cov qauv IP. Zoo ntawm kev siv tshuab IP:
- Kev daws teeb meem loj.
- Lub xub ntiag ntawm IP chaw nyob, lub koob yees duab yam yuav txiav txim siab hauv Internet.
- Muaj peev xwm ntawm archiving rau tus neeg rau zaub mov.
- Tus processor compresses cov ntaub ntawv, uas txo cov load hauv lub network.
Cov koob yees duab yeeb yaj kiab rau kev yees duab video
Cov duab thaij duab thev naus laus zis ua hauj lwm nrog PAL thiab NTSC cov cim, txuas ncaj qha mus rau cov zaub uas muaj cable. Yog tias koj xav tau kaw qhov teeb meem tshwm sim, koj yuav tsum txuas mus rau lub computer lossis DVR network. Cov cuab yeej thaum ntxov yuav tsis qhia tawm cov duab uas muaj kev daws teeb meem thiab ua kom tsis muaj teeb meem ntawm daim duab digitally. Ob xyoos dhau los nyob rau hauv kev ua lag luam ntawm analog qauv muaj ib tug breakthrough - cov qauv tshiab tshwm sim:
- AHD;
- HD-TVI;
- HD-CVI.
Tam sim no, txawm tias analog koob yees duab tsim tau zoo sib xws rau HD (720p) thiab Full HD (1080p). Nyob rau hauv 2017 3 thiab 4 megapixel qauv mus muag. Yog li ib lub koob yees duab niaj hnub analog video rau video yoos muaj peev xwm los sib tw nrog cov qauv IP. Ib tug xov tooj ntawm nws cuab kev zoo:
- Infrastructure tsis raug hacker thiab kab mob tawm tsam.
- Muab cov duab tso rau hauv lub sijhawm tiag tiag yam tsis qeeb.
- Tsawg tus nqi, installation yooj yim.
- Lub interconnection ntawm li tso tawm los ntawm ntau hom.
- Lub koob yees duab yees duab yees duab yees duab yees duab rau video video qhia tau nws tus kheej tsis hais txog lub teeb taws.
- Nws yog tsim nyog muab rau lawv nyiam thaum koj xav tua nyob rau hauv tsab ntawv tsa suab.
Dab tsi yog soj ntsuam cov koob yees duab?
Ib lub koob yees duab yees duab tshiab rau video yoos yog qhov tseem ceeb ntawm kev ruaj ntseg system. Cov txheej txheem no ua ntau hom haujlwm, nyob ntawm qhov kev ua tau zoo, tus nqi rau nws tuaj yeem txawv. Kev faib tawm ntawm cov koob yees duab video rau kev yees duab video hauv qhov chaw nruab:
- Txoj kev - raug sab nraud sab nraum lub tsev.
- Sab hauv - nws tsis yog yuav tsum tau siv sab nraum zoov.
Los ntawm cov qauv ntawm cov ntaub ntawv kis:
- Wired - teeb liab raug xa los ntawm fiber, twisted khub, coaxial qaum.
- Wireless - lub installation ntawm lub network tsis yog yuav tsum tau, koj xav tau lub hwj chim.
Los ntawm xim:
- Xim - shooting yog heev dua lwm yam xim.
- Dub thiab dawb - lawv tuaj yeem siv tau thaum tsis muaj teeb pom kev zoo los yog nyob hauv tag nrho tsaus ntuj nrog infrared illumination.
- Hnub / Hmo - hauv maub, video fader tsiv ntawm xim hom xim dub thiab dawb.
Nyob rau hauv tsos:
- Cylindrical - ua nyob rau hauv daim ntawv ntawm ib tug lub tog raj kheej.
- Modular - liab qab rooj tsis muaj ntaub ntawv.
- Dome -shell muaj daim ntawv ntawm ib lub hemisphere.
- Fisheye - panoramic li nrog ultra-thoob saib.
Sab hauv lub koob yees duab sab nrauv rau video yoos
Lub koob yees duab tshiab niaj hnub no rau kev tsim video video rau lub tsev yog tsau tawm hauv lub tsev, nws txawv me me thiab qhov hnyav. Nws tsis muaj kev tiv thaiv tawm tsam lwm tus sab nraud thiab yuav tsum haum haum rau sab hauv. Cov ntaub ntawv ntawm xws li ib tug ntaus ntawv tsis muaj neeg pab leg ntaubntawv rau ceev, muaj tsis muaj visors rau nws. Rau kev yees duab video hauv tsev, koj tuaj yeem siv cov koob yees duab yees duab yees duab nrog cov duab thaij duab me me los sis cov khoom siv ntim nruab nrog nruab nrog Wi-nkaus, lub microphone, lub suab ntsuas.
Sab nraum zoov video koob yees duab rau video keb soj ntsuam
Lub lag luam ntawm cov yees duab yees duab sab nrauv rau video yoos yog txuam nrog qhov yuav tsum tau los tiv thaiv cov cuab yeej ntawm tsawg dua kub, los nag, hnub, plua plav. Yog li ntawd, lawv muab tso rau hauv cov ntaub thaiv kaw, hauv uas muaj cov cua sov. Cov kev ntsuas ntawm kev tiv thaiv ntawm cov cuab yeej yog txiav txim siab los ntawm lub npe. Plua plav, IPXX, qhov twg XX yog qhov kev tiv thaiv ntawm kev tiv thaiv (thawj yog hmoov av, qhov thib ob yog los ntawm ya raws). Piv txwv, IP65 lub cuab yeej yog cov hmoov av pov tseg, tiam sis nws ntsia rau hauv txoj kev pom ntawm txoj kev, thiab IP68 tuaj yeem raus hauv dej.
Kev siv sab nraum zoov feem ntau yuav tiv thaiv kev tiv thaiv kev tiv thaiv, thiab ua hauj lwm hmo ntuj - lub teeb ci ntsa iab. Camcorders rau sab nraum zoov video surveillance yog muab tshem tawm deb ntawm lub monitor, yog li lawv yuav tsum muaj peev xwm xa cov ntaub ntawv zoo dua ntev mus. Ntau zaus rau txoj kev siv cylindrical, dome lossis teb qauv.
Camcorders rau kev saib xyuas yees duab latent
Txhim kho video kev saib xyuas tau yog ib lub koob yees duab zais. Lawv cia tawm kom cov khoom tsis pom, tias nws tshem tawm. Kev kaw video uas muab zais cia rau video yoos yuav tsis zais raws li ib qho kev kawm, piv txwv, ib phav los yog ib phau ntawv. Muaj cov qauv me me, qhov ntau thiab tsawg ntawm qhov tsis ntau tshaj qhov loj ntawm lub taub hau phim. Qhov zoo li lub lens yog ntsia rau ntawm phab ntsa, nyob saum npoo tsuas yog lub lens xwb. Ua ntej xaiv lub koob yees duab zais cia, nws yog qhov tseem ceeb kom paub tias qhov kev soj ntsuam ntawm ib qho khoom yog txhaum cai.
Video yees nrog ib lub microphone rau video keb soj ntsuam
Nrog rau kev txhim kho ntawm CCTV, lub zog tau zoo dua qub nrog rau muaj suab. Nyob hauv kev ua lag luam muaj ntau lub koob yees duab nrog lub teeb tsa built-in microphones nrog cov kev tshab siab zoo thiab kev rhiab heev, uas muaj peev xwm txawj sau cov ntsiab lus ntawm qhov khoom. Lub koob yees duab yees duab rau kev yees duab nrog lub suab yuav pab kom tau cov lus qhia tseeb txog qhov teeb meem ntawm qhov khoom tiv thaiv, nyob rau lub sij hawm los xyuas txog qhov kev hem. Qee cov qauv muaj cov lus tham uas hais txog tus neeg xa xov hais lus rau tus kwv.
Wireless video yees rau video yoos
Cov txiaj ntsig zoo los ntawm cov khoom siv hauv kev lag luam thaum tsis muaj cov nqi rau kev siv kab kev sib sim wireless. Lawv xa cov teeb liab siv 3G, 4G, WI nkaus technology, thaum hluav taws xob rau tus ntaus nws tus kheej los ntawm cov xaim. Tab sis lub voos kheej kheej ntawm lawv qhov kev txiav txim yog tsawg thiab tus nqi siab tshaj cov kab sib txuas sib txuas. Wireless qauv muab faib ua ntau pawg:
- Video cameras Wi-nkaus rau video yoos, nws tus IP qauv uas ua haujlwm los ntawm qhov kev nkag.
- WEB - qauv, nws yog ib txheej: koob yees duab - transmitter - receiver - USB interface converter (ntxiv rau software tshwj xeeb).
- GSM - xa cov ntaub ntawv tshaj xov tooj ntawm kev sib txuas lus ntawm tes (ntau yam tsawg rau tus neeg teb xov tooj qhov kev pab them nqi).
Camcorder rau video yoos nrog zoom
Lub koob yees duab niaj hnub yees duab nrog kev yees duab nrog zoom ntxiv nrog lub ZOOM built-in ZOOM. Nws siv ntau dua los siv dua li ua kom pom tseeb. Ua tsaug rau ZOOM-lens, ib lub koob yees duab video rau sab hauv los yog sab nraum zoov shooting peev xwm ntawm approximating lossis detaching khoom. Ntau yam kev hloov ntawm kev nrug - los ntawm 6: 1 txog 50: 1. Camcorders nrog built-in zoom muaj high-tech stuffing, yog kim kim dua analogues, lawv muaj loj qhov loj thiab lub zog noj. Kev yuav khoom ntawm cov khoom no yuav tsum tau txais kev ncaj ncees, nws yog ib lub tswv yim kom siv lawv hauv cov cheeb tsam teb.
Camcorders nrog rau cov lus tsa suab rau kev yees duab
Lub hauv paus ntsiab lus ntawm lub koob yees duab nrog cov lus taw kev ua haujlwm yog qhov tshwm sim (programmed ua ntej) kom tsiv ib yam khoom hauv cheeb tsam saib. Nws tuaj yeem:
- pib sau cov ntaub ntawv;
- tig rau lub tsib rov;
- xa ib lub teeb liab rau lub monitor, qhov tseem ceeb ntawm qhov khoom txav ntawm tus ncej.
Lub suab tsom xam cov xov tooj raug qhib los yog siv tes haujlwm. Lawv yog cov teeb meem sab nraud, txawv ntawm ntau yam (tsis pub tshaj 6 m), pom lub kaum ntsej muag (feem ntau 70 °). Ua ntej xaiv ib lub koob yees duab sab nraud rau lub tsev uas muaj lub cim suab, nws yog qhov tseem ceeb kom paub tias nws yog ib qhov teeb meem rau nruab nws qhov chaw ntws ntawm tib neeg tsis yog khaus, yog li ntawd cov ntaub ntawv pib thaum tsim nyog.
Cov Koob Nrauv CCTV Tebchaws
Kev tua nyob rau hauv thaj chaw dav dav nws yog qhov zoo uas yuav tau xaiv ib tug tigtable rau video surveillance. Nws yog nruab nrog lub tswv yim uas hloov qhov pom lub kaum sab xis ntawm lub cuab yeej. Lub koob yees duab qiv los yog qhov kev tswj hwm hloov lub lens thiab kho qhov teeb meem nyob ib puag ncig. Qhov kev ua haujlwm pab txo cov xov tooj ntawm cov khoom siv rau hauv lub vev xaib, tsis muaj kev txwv ntawm cheeb tsam saib. Feem ntau cov koob yees duab koob yees duab muaj peev xwm kwv yees txog kev yees duab yees. Cov cuab yeej ua tau programmed rau qhov sib lawv liag ntawm qhov kev hloov ntawm lub lens, qhia txog lub kaum sab xis ntawm lub voj voog thiab lub caij nyoog.
Cov koob yees duab Panoramic CCTV
Cov koob yees duab niaj hnub panoramic muab 360 ° saib tas nrho. Lawv pab saib tag nrho cov duab ntawm thaj chaw tiv thaiv tag nrog tsawg kawg ntawm "qhov chaw pom kev". Thaum twg txiav txim seb cov koob thaij duab zoo tshaj plaws, nws tsim nyog xav tias cov qauv ua panoramic yuav hloov tau ob peb hnub uas muaj kev ruaj khov thiab zoo dua. Kev siv lub tshuab ua haujlwm nrog, cov twj paj nruag tswj cov khoom hauv ib qho kev pom. Ib qho kev xaiv nrov yog ib hom qauv dome nrog ib tug ntses qhov muag lens ntsia rau saum qab nthab lossis phab ntsa. Nws yog ib qhov tsim nyog siv nws nyob rau hauv cov cheeb tsam uas tsis txaus siab rau cov khoom nruab nrab.
Cov yam ntxwv ntawm lub koob yees duab yees duab rau video kev saib xyuas
Xaiv lub koob yees duab yog pom zoo siv rau hauv koj tus account cov ntsiab lus tseem ceeb:
- Tso Cai. Txiav txim siab txog qhov kev nthuav dav ntawm daim duab, txhua yam yog qhov yooj yim - qhov ntau, zoo dua. Rau cov analog koob yees duab nws yog ntsuas hauv TVL TV (ntawm 380 (~ 0.3 Mp) mus rau 1000 tauj (~ 2 Mp)), rau cov koob yees duab IP - hauv megapixels (yam tsawg kawg nkaus - 1 Mp, qhov zoo tshaj plaws video cameras rau high-resolution video surveillance muaj ntsuas txog 12 Mp, uas sib raug mus rau tus qauv 4K).
- Mob siab. Txiav txim seb qhov tsawg kawg nkaus ntawm kev teeb tsa, ntsuas hauv chav ua mov. Rau kev ua hauj lwm thaum hmo ntuj uas tsis muaj kev tsis pom kev, qhov kev ntsuas no yuav tsum tsis txhob siab tshaj 0.1 lux. Ib qho kom zoo dua yog qhov muaj cov xim lim.
- Saib lub kaum ntse ntse thiab ua kom pom tseeb. Txhais cov kev pabcuam ntawm qhov chaw nrhiav thiab hom duab (panoramic, medium-approximate, portrait). Cov koob yees duab nrog lub kaum sab laj saib ntawm 90 ° tuaj yeem npog tag nrho chav siab dua, tab sis, ces thaum saib cov yees duab koj tuaj yeem rhuav tshem cov ntsiab lus.
Tsis tas li ntawd, thaum yuav khoom, them nqi rau qhov muaj cov kev ua haujlwm hauv infrared, kev sib tw, kev nyob nruab nrab ntawm hmo tua, cov khoom siv ntawm lub cev, qhov ceev ntawm cov ntaubntawv povthawj siv video, cov qauv ntawm cov ntaub ntawv digital video, qhov ntev thiab qhov hnyav ntawm lub cuab yeej. Lwm cov cuab yeej muaj peev xwm muaj lub teeb tsa built-in microphone (nrog rau qhov sib txawv ntawm qhov rhiab heev), lub chaw nco (ntawm ntau lub ntim thiab hom ntawv).