Ukwakha uhlelo lokugada amavidiyo kubukeka kulula uma uqala nje
umsebenzi.
Ukuqaliswa kwayo kudinga ukuxazulula izinkinga eziningi. Ngaphandle kwalokho
ukuhlela amashaneli okudluliswa kwedatha, ukuqoqa, ukugcina kanye nokubuyisa ulwazi oludingekayo
kuyadingeka ukunikeza amandla kumakhamera wevidiyo, kanye nokulawula nokuxilonga.
Izinzuzo zezixazululo zekhamera ye-IP
Kunezindlela eziningi zobuchwepheshe: kusuka ku-analog yendabuko
amakhamera wevidiyo kumakhamera amancane ewebhu e-USB kanye neziqophi zevidiyo ezincane.
Ukusetshenziswa kwamakhamera we-IP we
ukuthola isithombe.
Amakhamera alolu hlobo adlulisa izithombe ngefomu ledijithali ngenethiwekhi ye-IP. Lokhu
inikeza izinzuzo eziningi: isithombe esivela kukhamera sitholwa ngokushesha ngefomu ledijithali,
okungukuthi, ayidingi abaguquli abakhethekile, ulwazi oluqoqiwe lulula
cubungula, hlela, hlinzeka ngosesho lwengobo yomlando, nokunye.
Uma kungenzeka ukusebenzisa ikhebula lenethiwekhi, kanye nebanga phakathi kokushintsha kanye
amakhamera aweqi amanani avumelekile, bese evamise ukusebenzisa inethiwekhi ye-Ethernet ivuliwe
isisekelo sokubhanqa esisontekile namakhamera asebenza ngoxhumano lwekhebula. Lesi sinqumo
iqinisekisa ukuxhumana okuzinzile futhi izimele ngokuphelele ezintweni ezivela eceleni,
njengokukhethwa kobubanzi befrikhwensi, ukuba khona kokuphazamiseka emoyeni kanye namanye ama-nuances.
Ukusebenzisa uxhumano olunezintambo kukuvumela ukuthi usebenzise okufanayo
ikhebula (ipheya elisontekile) kanye nokwenza amandla amakhamera evidiyo - Power Over Ethernet, PoE.
Ukubhala. Ezinye izinhlobo zokuxhuma kunethiwekhi zisetshenziswa kancane,
isibonelo, nge-Wi-Fi noma i-GSM. Naphezu kwazo zonke izinzuzo zokuxhumana okungenantambo,
Udaba lokunikezwa kwamandla kagesi kulawa makhamera kufanele luxazululwe ecaleni ngalinye ngokwehlukana.
Isibonelo, amandla avela kunethiwekhi yokukhanyisa, kusukela kubhethri yelanga, njalonjalo. IN
ngokuvamile, lokhu akusona ncamashi isiqondiso ukuthi kungenziwa Kunconywa njengoba
isixazululo esilula nesivamile semisebenzi eminingi.
Izici zezinhlelo zokugada amavidiyo uma ziqhathaniswa nezinye izinhlelo ze-IP ezisabalalisiwe
Endabeni yokubhekwa kwevidiyo, akunakwenzeka ukusakaza ngokuqondile isipiliyoni sokwakha abanye
amanethiwekhi. Ake sithathe, ukuze siqhathanise, ukuxhumana ngezwi okusekelwe kucingo lwe-IP. Noma kunjalo
izindawo ezihluke ngokuphelele zohlelo lokusebenza, lapho nalaphaya zisebenzisa inethiwekhi ye-IP, kuzo zombili
Kwezinye izimo, amandla e-PoE angasetshenziswa.
Kodwa uma sicabangela izici zokusebenza, ngendlela efanayo evamile
Ezinye izinto zixazululwa ngendlela ehluke kakhulu. Nazi izici ezimbalwa:
-
Ikhamera ye-IP idinga ukugadwa njalo. Abantu, izilwane noma impahla
izinto ezigadwa ngevidiyo mancane amathuba okuthi zixhumane nazo
xhumana nosekelo lobuchwepheshe ukuze ubike ukuthi ikhamera ayisebenzi.Kodwa eduze kwefoni ye-IP yenkampani ngokuvamile kuvame ukuba nomsebenzisi
ikhompuyutha. Uma enenkinga yokuxhumana ngocingo, angabika
Kulokhu, ngokudala umsebenzi ohlelweni lwesicelo, thumela isicelo ngeposi, ngokushaya ucingo
umakhalekhukhwini womuntu siqu (uma inqubomgomo yebhizinisi ivuma) nokunye. -
Amakhamera we-IP ngokuvamile atholakala ezindaweni okunzima ukufinyelela kuzo: ngaphansi kosilingi, kuvuliwe
insika nokunye. Okuthile ngokushesha "thatha wenze" kungaba kakhulu
inkinga. Uma uxhumano pair ezisontekile kufihlwe odongeni ukuze
hlola isimo sekhebula - okokuqala udinga ukuzama ngandlela thile ukuyikhipha.
Ukusebenza kokushintsha ikhamera nakho kubukeka kuyinkimbinkimbi kunokuba nje
nqamula bese uthatha ifoni engasebenzi etafuleni bese uyinikeza umsebenzisi
kunalokho kukhona isisetshenziswa esisebenzayo.
Inothi elibalulekile. Amakhamera we-IP ngokuvamile atholakala ebangeni elide ukusuka
i-switchboard, isibonelo, ukugadwa kwevidiyo ezingadini zomphakathi, ezindaweni zokungcebeleka, njalonjalo. Uma
I-PoE isetshenzisiwe, kuyadingeka ukugcina izinga eliphezulu ngokwanele
amandla, ancipha ngebanga elikhulayo ukusuka emthonjeni.
Izidingo zokuzinza kwalo lonke uhlelo lokugada amavidiyo ziphezulu kakhulu. Kusuka
ikhwalithi nokuphelela kwesithombe kungancika kakhulu: ekwehliseni
isikhathi sokulinda sokukhipha iphasi kuze kube sikhonjwe isigebengu ohlelweni
ukuqashelwa ubuso. Ngakho-ke, umsebenzi ozinzile ubaluleke kakhulu. ngokulandelana,
ukushintshwa, njengesixhumanisi esimaphakathi, kungaphansi kokuphezulu
izidingo. Ngenxa yokuhluleka kaningi kokushintsha kwe-PoE, ukubhekwa kwevidiyo ngeke kusebenze
engazinzile (uma isebenza nhlobo). Ngakho-ke, ukuthenga i-PoE switch kuyinto
ngokuqinisekile akunjalo uma kufanele uzame ukonga imali futhi uthathe eyokuqala oyitholayo
inketho eshibhile.
Imibuzo efanayo ayiveli kuphela lapho usebenzisa amakhamera we-IP, kodwa futhi nezinye
izixazululo zokubhekwa kwevidiyo. Yebo, zonke lezi zinkinga ziyaxazululeka, ngaphandle kwalokho
Amakhamera we-IP, kanye nesistimu yokuqapha ividiyo ngokuvamile, kungaba nzima ukuyisebenzisa
ukuzijwayeza. Kodwa kungenzeka yini ukuba wenze ukuphila kwakho kube lula futhi ungachithi imali eyengeziwe
izinsiza: isikhathi, imali, umzamo womuntu wokusebenza okulula?
Ukushintsha okukhethekile kokuxhuma amakhamera e-IP
Ukufingqa konke okungenhla, singasho ukuthi ukusebenza nezinhlelo ezisekelwe
Amakhamera we-IP alula uma usebenzisa okokusebenza okuklanyelwe ngokukhethekile
ukusebenza nabo. Futhi njengoba amakhamera e-IP exhunywe ekushintsheni, ngezansi kunenkulumo
Ake sikhulume ngamadivaysi akhethekile alolu hlobo.
Ngokushintsha okunjalo, imisebenzi elandelayo ivela:
- ukuqinisekisa ukuxhumana okuzinzile;
- Ukunikezwa kwamandla kwe-PoE;
- ukuqapha nokulawula amakhamera we-IP;
- ukuvikelwa ekukhuphukeni kwamandla kanye nokukhishwa kwe-electrostatic.
Esinye sezici ezibalulekile ubude obuvumelekile bekhebula lapho
Idivayisi inikwe amandla. Isimo sesibili esiwusizo kakhulu sibonakala sinjalo
amathuba okuphatha, isibonelo, kusetshenziswa iphrothokholi ye-LLDP. Ikakhulukazi
Umsebenzi wokuqalisa kabusha ukude ikhamera ye-IP ethola amandla ubukeka uwusizo
nge-PoE.
Ukubhala. I-Link Layer Discovery Protocol (LLDP) iyiphrothokholi yesixhumanisi sedatha
isendlalelo, esichaza indlela evamile yamadivayisi akunethiwekhi ye-Ethernet ukuze
kithi - ngokushintsha kanye namakhamera we-IP. Sibonga ukusetshenziswa kwemishini ye-LLDP
bangasabalalisa ulwazi olumayelana nabo kwamanye ama-node kunethiwekhi futhi balondoloze
idatha etholiwe.
Muva nje, i-Zyxel yethule ukushintsha okusha kwe-PoE nge
umklamo oyingqayizivele kanye nesofthiwe.
Ukuze siqonde kangcono ingqikithi yezinto ezintsha eziwusizo, sizocabangela umugqa
amaswishi e-GS1300 angaphethwe, kanye nomugqa wamamodeli amasha we-GS1350 aphethwe
Okubalulekile Kobubanzi Obunwetshiwe.
Wonke amaswishi asuka kule migqa aklanyelwe amasistimu ngokuqondile
ukubhekwa kwevidiyo. Sekukonke, amamodeli esimanje ayi-7 atholakala kubasebenzisi
amaswishi, okuthi 3 kwawo angalawuleki futhi 4 aphethwe
I-Zyxel G1300 Series Ukushintsha Okungaphethwe
Kulo mugqa, imisebenzi elandelayo yehadiwe ingaqashelwa ewusizo:
ikakhulukazi amasistimu okuqapha amavidiyo:
- Ibhajethi ephezulu ye-PoE - ikuvumela ukuthi ugcine amandla adingekayo ngisho naku-
ibanga elide; - esiphezulu PoE LED;
- ukuxhuma amakhamera ebangeni elingafika ku-250 m;
- izinga lokushisa elinwetshiwe ukusuka ku -20 kuye ku-50 β (ikakhulukazi lokhu kungaba
luwusizo lapho usebenza ensimini, isibonelo lapho ushintsha
etholakala endaweni yesikhashana).
Inani le-ESD/Surge Protection:
- I-ESD β 8 kV / 6 kV (Umoya/Othintana naye);
- Surge β 4 kV (Ethernet Port).
Ukubhala. ESD - ukuvikelwa ku-electrostatic voltage, Ukuphakama -
ukuvikelwa kwe-overvoltage. Uma ukukhishwa okumile kwenzeka emoyeni kuze kufike ku-8
i-kilovolt, noma ama-electrostatics angu-6 kV lapho usondelene, noma ukuhlinzwa kwesikhashana
ama-voltage afinyelela ku-4 kilovolts - inkinobho inethuba elihle lokusinda kuleyo ndlela
izinkinga.
Umfanekiso 1. Inkomba yokuqapha kwe-PoE.
Inothi elibalulekile. Usebenzisa amaswishi e-DIP, ungasetha izimbobo
okuzoba nobubanzi obunyukile - kufika ku-250m. Izimbobo ezisele zizosebenza kuzo
imodi evamile.
I-Zyxel ilungiselele amamodeli amaningana okushintshwa anezinombolo ezahlukene
amachweba asuka ku-8 kuye kwangama-24. Le ndlela ikuvumela ukuthi uvumelane nezimo nezidingo zakho
abathengi.
Umehluko ezicini zamamodeli alawulwayo ukhonjiswe kuThebula 1.
Ithebula 1. Amamodeli angaphethwe amaswishi ochungechunge lwe-Zyxel GS1300
-
Inombolo yezimbobo ze-PoE
Izimbobo ze-Uplink
PoE Power Budget
Umthombo wamandla
I-GS1300-10HP
8 G.E.
1SFP, 1GE
130 W
Ngaphakathi
I-GS1300-18HP
16 G.E.
1SFP,1GE
170 W
Ngaphakathi
I-GS1300-26HP
24 G.E.
I-2SFP
250 W
Ngaphakathi
Ukushintsha Okuphethwe Kwe-Zyxel G1350 Series
Ukushintsha kulo mugqa kunamakhono amaningi okuphatha futhi
ukugcina ukusebenza kwesistimu yokuqapha ividiyo. Izici zokuphepha ezakhelwe ngaphakathi kanye
isiqiniseko sokusebenza siwusizo ezimweni ezehlukene.
Ezinye izici ezithakazelisayo zehadiwe:
- ukuvikelwa okuthuthukisiwe kuma-4 kV surges kanye
ukukhishwa kwe-electrostatic 8 kV (uchungechunge lwe-GS1350); - Ama-LED wokuqapha kwe-PoE;
- Inkinobho yokugcina enhle (FW recovery);
- ukuxhuma amakhamera ebangeni elingafika ku-250m nge-bandwidth engu-10
I-Mbit/s, ehambisana nezinga; - izinga lokushisa elinwetshiwe (kusuka ku -20 kuya ku- +50 β).
Amanani e-ESD/Surge Protection ngokwawo ahlala efana nalawo angaphethwe
amamodeli:
- I-ESD β 8 kV / 6 kV (Umoya/Othintana naye);
- Surge β 4 kV (Ethernet Port).
Umfanekiso 2. Ibha ye-PoE LED nenkinobho yokubuyisela.
Ekhuluma ngomugqa omusha, umuntu akanakuhluleka ukuqaphela imisebenzi yesofthiwe eyakhelwe ngaphakathi,
isibonelo:
- ukuphathwa kwe-PoE okuthuthukisiwe kokubhekwa kwevidiyo;
- Ukusekelwa kwe-IEEE 802.3bt - 60W ngembobo ngayinye (GS1350-6HP);
- I-Basic L2, ukwesekwa kwewebhu, ukulawulwa kwe-CLI.
Ngokuqondene nokusekelwa kwe-Nebula Flex, kulindeleke kumamodeli ochungechunge lwe-GS1350
ngo2020.
Ekhuluma ngomugqa wemishini ye-G1350, kufanelekile ukuphawula ukubukeka kwemodeli encane ku
4 amachweba we-PoE. Le "ngane" iwusizo ikakhulukazi lapho uhlela izinhlelo
ukubhekwa kwevidiyo kwezinto ezincane kanye namabhizinisi omkhakha wama-SME.
Ithebula 2. Amamodeli aphethwe amaswishi ochungechunge lwe-Zyxel GS1350.
-
Inombolo yezimbobo ze-PoE
Izimbobo ze-Uplink
PoE Power Budget
Umthombo wamandla
I-GS1350-6HP
4GE
1SFP, 1GE(802.3bt)
60W
Ngaphandle
I-GS1350-12HP
8GE
2SFP, 2GE
130W
Ngaphakathi
I-GS1350-18HP
16GE
2 Inhlanganisela
250W
Ngaphakathi
I-GS1350-26HP
24GE
2 Inhlanganisela
375W
Ngaphakathi
Ukulawula Okuthuthukisiwe Kokubhekwa Kwevidiyo
Ukuze kuzuzwe okuphelele kakhulu, ukuqapha okuqhubekayo, kanye for
ukusetshenziswa kalula, i-Zyxel yengeze izici ezintsha eziwusizo:
- ulwazi mayelana namakhamera we-IP ekhasini elithi "Omakhelwane";
- ukuhlola isimo sekhamera;
- ukunikezwa kwamandla okungaphazamiseki kukhamera (uma ubuyekeza noma uqalisa kabusha iswishi);
- ukuqalisa kabusha okukude kwamakhamera we-IP;
- izinketho ze-PoE eziyimbudumbudu ukusekela amakhamera we-IP angathobeli
I-PoE ejwayelekile; - vumela i-PoE kushejuli;
- okubalulekile kumachweba we-PoE.
Ngezansi sizogxila emisebenzini emithathu ethandwa kakhulu evele entsha
amamodeli.
Ikhasi lewebhu lomakhelwane - "Omakhelwane"
Kuleli khasi ungabona isimo sekhamera, i-IP ejwayele ukwenza kanjalo
ukusebenzisana (inqobo nje uma ikhamera ixhunyiwe futhi isebenza), kanye βnezinkinobhoβ
ukuze uqalise kabusha futhi usethe kabusha kuzilungiselelo zasembonini.
Umfanekiso 3. Isiqephu sekhasi lesixhumi esibonakalayo somakhelwane - "Omakhelwane".
I-Auto PD Recovery
Lesi sici sithola ngokuzenzakalelayo ikhamera ye-IP efriziwe bese siyiqalisa kabusha.
Lokhu kunethezeka manje sekuyatholakala kuwo wonke amakhamera avela kubo bonke abakhiqizi. Leyo
uthenge iswishi ye-Zyxel futhi ungasebenza ngamakhamera osuvele unawo noma lawo
leyo Isevisi Yezokuphepha idinga ukuthi ifakwe.
Kungenzeka ukunquma isimo sekhamera ngephrothokholi ye-LLDP, kanye nange
ukuthumela amaphakethe e-ICMP, ngamanye amazwi, nge-Ping evamile.
Kuyenzeka ukuvimbela ikhamera enephutha ukuthi ihlale iqalisa kabusha nge
enikezwa amandla nge-PoE.
Umfanekiso 4. Isiqephu sekhasi lesixhumi esibonakalayo somakhelwane - "Omakhelwane".
I-PoE eqhubekayo
Lesi sici siqinisekisa ukunikezwa kwamandla okuqhubekayo kumakhamera nezinye izinzwa
ngesikhathi sokulungiswa kweswishi.
Ngaphezu kokusebenza okujwayelekile, kunezikhathi lapho kudingekile
izenzo ezithile ngokushintsha, isibonelo:
- yenza isibuyekezo se-firmware.
- layisha ifayela elisha lokumisa, noma, ngokuphambene, buyisela elamanje
izilungiselelo kwezangaphambilini ezisuka ekhophini eyisipele; - yenza ukusetha kabusha kuzilungiselelo zasembonini.
Futhi, kwesinye isikhathi kunesidingo sokuqalisa kabusha iswishi,
isibonelo, ukuhlola ukuthi izilungiselelo zenziwe ngendlela efanele.
Yebo, amandla kagesi kumakhamera akufanele alahleke sonke lesi sikhathi.
Kungani kuphakama lesi sidingo? Kubukeka sengathi uma ukushintsha
reboots, kungani sidinga amandla aqhubekayo amakhamera?
Iqiniso liwukuthi ukuqalisa kabusha amakhamera ngokwawo nokufaka imodi yokusebenza kuthatha
okwesikhashana. Ngaphezu kwalokho, isoftware yokuqapha ividiyo kufanele
ube nesikhathi "sokubamba" amakhamera asanda kulayishwa. Ngokwenza lokhu futhi
kuthatha isikhathi. Ngenxa yalokho, kusukela ngesikhathi isishintshi sibuyiselwa,
futhi kuze kube yilapho ukuqoshwa kwedatha kubuyiselwa ngokuphelele uhlelo lokugada, izinkinga zingase ziphakame.
ukuphumula okungamukelekile ngokombono wemithetho yezokuphepha.
Yingakho kudingekile ukunciphisa noma yimaphi amathuba okuba nesikhathi sokuphumula, kuhlanganise
okuhlanganisa ngenxa yokunakekelwa okujwayelekile.
isiphetho
Ulayini we-G1300 wokushintshwa okungalawulwa usuvele uhlanganisa okuningana kakhulu
imisebenzi ewusizo. Kodwa-ke, amandla e-G1350 aphezulu kakhulu ngokulawula
inethiwekhi (ephethwe uma iqhathaniswa neswishi engaphethwe), kanye nokuqinisekisa
izidingo ezithile zokubhekwa kwevidiyo.
Okujabulisa kakhulu ikhono lokulawula amakhamera avela kwabanye abakhiqizi, kanye
indlela elinganiselayo ngenkathi iqinisekisa ukuqhubeka kwesistimu yokuqapha.
Siphendula imibuzo kanye nabaphathi besistimu yokweseka kwethi . Siyakwamukela!
Imithombo
Phela, uZyxel usanda kuba neminyaka engama-30 ubudala!
Ukuhlonipha lo mcimbi, simemezele iphromoshini yomusa:
Source: www.habr.com