Cov txiaj ntsig ntawm kev siv CCTV system nrog IP technology
Nyob rau lub caij nyoog digital niaj hnub no, qhov xav tau kev ruaj ntseg tab tom nce ntxiv, txawm tias rau cov tsev, chaw ua haujlwm, tsev rau khoom, khw muag khoom, lossis thaj chaw pej xeem. Ib qho ntawm cov kev daws teeb meem uas siv dav tshaj plaws yog CCTV (Closed Circuit Television). Txawm li cas los xij, thaum thev naus laus zis nce qib, analog CCTV maj mam hloov los ntawm IP (Internet Protocol)-based CCTV systems. IP CCTV systems muab cov duab zoo dua, cov yam ntxwv niaj hnub dua, thiab kev teeb tsa thiab kev tswj hwm zoo dua.
Hauv qab no yog kev sib tham txog ntau yam zoo ntawm kev siv CCTV system nrog IP technology, thiab vim li cas lub system no thiaj yog qhov kev xaiv tsim nyog rau koj cov kev xav tau kev ruaj ntseg.
1. Duab zoo dua thiab ntxaws dua
Qhov zoo tshaj plaws ntawm IP CCTV yog nws qhov kev daws teeb meem ntawm lub koob yees duab ntau dua li analog CCTV. Txawm hais tias cov koob yees duab analog feem ntau tsuas yog siv tau rau qhov zoo ib txwm, cov koob yees duab IP tuaj yeem muab HD, Full HD, txog li 4K, thiab siab dua. Cov duab zoo ua rau nws yooj yim dua los txheeb xyuas cov ntsej muag, daim ntawv tsav tsheb, lossis cov ntsiab lus tshwj xeeb ntawm cov xwm txheej.
Hauv cov xwm txheej tshawb nrhiav, cov ntsiab lus me me xws li xim ntawm cov khaub ncaws, cov duab ntawm ib yam khoom, lossis kev taw qhia ntawm kev txav mus los ua qhov tseem ceeb. Cov koob yees duab IP feem ntau tsim cov yeeb yaj kiab meej dua, ua rau kev tshawb nrhiav qhov xwm txheej sai dua thiab raug dua.
2. Kev nkag mus saib xyuas yooj yim dua ntawm chaw deb
Cov tshuab CCTV IP yog tsim los txuas rau hauv internet, cia cov neeg siv saib xyuas los ntawm txhua qhov chaw. Siv ib lub app ntawm koj lub xov tooj, ntsiav tshuaj, lossis lub khoos phis tawj, koj tuaj yeem saib cov xwm txheej tiag tiag yam tsis tas yuav nyob ntawm qhov chaw.
Qhov feature no yog qhov tshwj xeeb tshaj yog rau cov tswv lag luam uas feem ntau mus ncig teb chaws, cov thawj coj tsev rau khoom, lossis cov tswv tsev uas xav kom paub txog tej yam thaum lawv mus ncig teb chaws. Ntxiv rau kev saib xyuas video, qee lub tshuab kuj tso cai rau kev ua si online nrog kev nkag mus tau zoo.
3. Kev teeb tsa yooj ywm dua thiab scalable
Cov txheej txheem analog xav tau cov xov hlau coaxial sib cais rau txhua lub koob yees duab thiab feem ntau nyuaj dua thaum xav tau ntxiv cov koob yees duab. Lub caij no, IP CCTV siv lub network ntaub ntawv (LAN) thiab feem ntau siv cov xov hlau Ethernet (UTP) yooj yim dua thiab siv ntau dua.
Lwm qhov zoo dua yog qhov muaj peev xwm nthuav dav. Koj tuaj yeem ntxiv cov koob yees duab tshiab yav tom ntej yam tsis tas yuav kho dua tshiab loj, tshwj xeeb tshaj yog tias lub network thiab cov khoom siv kaw suab twb txaus lawm. Qhov no ua rau IP CCTV haum rau cov kev xav tau loj hlob, xws li cov lag luam npaj yuav qhib cov ceg lossis nthuav lawv cov haujlwm.
4. Txhawb nqa Power over Ethernet (PoE) thev naus laus zis
Muaj ntau lub koob yees duab IP txhawb nqa PoE (Power over Ethernet), uas yog ib qho thev naus laus zis uas tso cai rau lub koob yees duab txais tau ob qho tib si fais fab thiab cov ntaub ntawv hla tib lub Ethernet cable. PoE tso cai rau kev teeb tsa huv dua, txuag cov nqi, thiab txo qhov xav tau cov qhov hluav taws xob ze ntawm lub koob yees duab.
Rau cov chaw xws li qab nthab siab, chaw nres tsheb, lossis cov ces kaum nyuaj rau ncav cuag ntawm cov tsev, PoE muaj txiaj ntsig zoo vim tias cov kws kho tshuab tsis tas yuav khiav ob txoj kab sib cais. Ntxiv mus, kev siv PoE feem ntau txhim kho kev teeb tsa kom huv si thiab txo qhov kev pheej hmoo ntawm kev cuam tshuam los ntawm cov xov hlau ntau dhau.
5. Cov yam ntxwv kev ruaj ntseg thiab kev tshuaj xyuas siab dua
Feem ntau, IP CCTV muaj cov yam ntxwv niaj hnub dua li cov tshuab analog, ob qho tib si hais txog kev ruaj ntseg ntawm cov ntaub ntawv thiab kev txawj ntse ntawm kev txheeb xyuas. Qee qhov nta feem ntau suav nrog:
- Kev tshawb nrhiav kev txav mus los kom txuag tau qhov chaw cia khoom thiab muab kev ceeb toom thaum muaj kev ua ub no txawv txawv.
- Kev paub lub ntsej muag ntawm qee lub tshuab rau kev tswj hwm kev nkag mus lossis kev xav tau kev ruaj ntseg.
- Kev tshuaj xyuas video xws li cov kab virtual (tripwire), kev ntes neeg coob coob, kev ntes thaj chaw nkag, lossis ceeb toom yog tias muaj ib yam khoom raug tso tseg.
- Cov ceeb toom tiag tiag los ntawm kev ceeb toom app lossis email thaum muaj qee yam xwm txheej tshwm sim.
Cov yam ntxwv no ua rau CCTV tsis yog tsuas yog "sau tseg", tab sis kuj "tsom xam" thiab pab tiv thaiv cov xwm txheej phem ua ntej lawv tshwm sim.
6. Kev khaws cia niaj hnub thiab ua haujlwm tau zoo dua
IP CCTV tuaj yeem kaw cia rau ntau yam khoom siv khaws cia, xws li NVR (Network Video Recorder), server, NAS (Network Attached Storage), lossis txawm tias huab (nyob ntawm lub system siv). Qhov no muab kev ywj pheej rau cov neeg siv xaiv txoj kev khaws cia raws li lawv xav tau, peev nyiaj, thiab cov cai tswjfwm kev ruaj ntseg ntawm cov ntaub ntawv.
Tsis tas li ntawd xwb, ntau lub koob yees duab IP tam sim no txhawb nqa kev nias cov yeeb yaj kiab niaj hnub xws li H.264 lossis H.265, uas txo cov ntaub ntawv me me yam tsis muaj kev cuam tshuam zoo. Qhov no txhais tau tias koj tuaj yeem khaws cov yeeb yaj kiab ntev dua ntawm tib qhov chaw hard drive.
7. Kev sib koom ua ke yooj yim dua nrog lwm lub tshuab
Hauv cov chaw ua lag luam niaj hnub no lossis cov tsev, CCTV feem ntau yuav tsum txuas nrog lwm cov kab ke kev ruaj ntseg, xws li kev tswj qhov rooj nkag, lub tswb ceeb toom hluav taws, lub qhov rooj/qhov rai sensors, thiab cov kab ke tswj tsev (BMS). IP CCTV yooj yim dua rau kev sib koom ua ke vim nws siv cov qauv network thiab cov txheej txheem sib txuas lus.
Qhov kev koom ua ke no ua rau muaj kev ua haujlwm tsis siv neeg thiab teb sai dua. Piv txwv li, thaum lub qhov rooj sensor pom tias muaj kev yuam kom qhib, lub kaw lus tuaj yeem hloov qhov pom mus rau lub koob yees duab tshwj xeeb hauv chav tswj hwm thiab xa kev ceeb toom rau cov neeg ua haujlwm kev ruaj ntseg.
8. Kev teeb tsa thiab kev tswj hwm hauv nruab nrab
Lwm qhov zoo ntawm IP CCTV yog qhov yooj yim ntawm kev tswj hwm. Los ntawm software tswj video (VMS) lossis NVR dashboard, cov neeg teb xov tooj tuaj yeem tswj hwm ntau lub koob yees duab tib lub sijhawm: hloov cov kev teeb tsa, teeb tsa cov sijhawm kaw, txhais cov cheeb tsam nrhiav pom, thiab tswj cov neeg siv thiab cov cai nkag mus.
Yog tias koj muaj ntau qhov chaw ua lag luam, lub kaw lus IP CCTV tuaj yeem saib xyuas tau hauv nruab nrab ntawm ib qho chaw, tsuav yog qhov kev sib txuas network txaus. Qhov no ua rau kev ua haujlwm zoo dua thiab txo qhov xav tau cov neeg ua haujlwm ntxiv.
9. Kev ruaj ntseg ntawm cov ntaub ntawv zoo dua thiab kev tswj hwm kev nkag mus
Vim tias nws yog raws li network, ntau tus neeg txhawj xeeb tias IP CCTV muaj kev phom sij ntau dua rau kev raug hacking. Txawm li cas los xij, cov thev naus laus zis IP niaj hnub no muab cov txheej txheem kev ruaj ntseg zoo dua thaum teeb tsa kom raug. Piv txwv li, siv encryption, passwords muaj zog, hloov kho firmware tsis tu ncua, thiab teeb tsa cov cai nkag mus rau tus neeg siv.
Tsis tas li ntawd xwb, cov tshuab CCTV IP tso cai rau kev faib lub luag haujlwm: leej twg tsuas yog tuaj yeem saib cov yeeb yaj kiab nyob, leej twg tuaj yeem rov ua dua cov yeeb yaj kiab, thiab leej twg tuaj yeem rho tawm cov yeeb yaj kiab. Qhov kev teeb tsa no yog qhov tseem ceeb rau cov tuam txhab kom tiv thaiv kev siv cov ntaub ntawv tsis raug.
10. Kev nqis peev mus sij hawm ntev uas muaj txiaj ntsig ntau dua
Txawm hais tias tus nqi pib ntawm kev teeb tsa IP CCTV qee zaum siab dua li cov txheej txheem analog, kev nqis peev feem ntau ua rau muaj txiaj ntsig zoo dua rau lub sijhawm ntev. Qhov zoo dua, cov yam ntxwv dav dua, yooj yim rau kev txhim kho, thiab kev sib koom ua ke ua rau cov txheej txheem no muaj zog dua rau cov kev xav tau kev ruaj ntseg uas hloov pauv tas li.
Tsis tas li ntawd xwb, kev txhim kho kev ua haujlwm zoo—xws li kev siv PoE, kev nias video, thiab cov txheej txheem tswj hwm hauv nruab nrab—tuaj yeem txo cov nqi ua haujlwm thiab kev saib xyuas dhau sijhawm.
Xaus
Kev siv lub CCTV system nrog IP technology muaj ntau yam zoo: duab zoo dua, nkag tau yooj yim dua, yooj yim dua rau kev teeb tsa, kev txhawb nqa PoE, cov yam ntxwv ntawm kev tshuaj xyuas siab heev, cov kev xaiv cia khoom niaj hnub, thiab kev sib koom ua ke yooj yim dua nrog lwm cov kev ruaj ntseg. Ntxiv mus, kev tswj hwm hauv nruab nrab thiab kev tswj hwm kev nkag mus zoo dua ua rau IP CCTV yog qhov kev daws teeb meem zoo tshaj plaws rau cov kev xav tau kev ruaj ntseg niaj hnub no.
Rau cov neeg uas xav txog kev teeb tsa CCTV, lub kaw lus IP yog ib qho kev xaiv tsim nyog, tshwj xeeb tshaj yog tias koj xav tau qib siab dua ntawm kev ruaj ntseg thiab thev naus laus zis uas npaj txhij los ua kom tau raws li qhov xav tau yav tom ntej. Thaum npaj kom zoo - los ntawm kev xaiv lub koob yees duab thiab network mus rau qhov chaw cia khoom - IP CCTV tuaj yeem yog kev nqis peev ruaj ntseg muaj zog thiab muaj txiaj ntsig.
