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Nigute ushobora guhitamo neza neza mumushinga wo gukurikirana?

Vuba aha, inshuti yabazaga, kamera zingahe zo kugenzura imiyoboro zishobora guhindura disiki?Nangahe za gigabit zishobora guhuzwa na miriyoni 2 za kamera?Imitwe 24 y'urusobe, nshobora gukoresha 24-port 100M ya switch?ikibazo nk'iki.Uyu munsi, reka turebe isano iri hagati yumubare wibyambu byahinduwe numubare wa kamera!

1. Hitamo ukurikije code ya code nubunini bwa kamera
1. Kamera yerekana kamera
Mbere yo guhitamo icyerekezo, banza umenye ingano ya buri shusho ifata.
2. Umubare wa kamera
3. Kugirango umenye ubushobozi bwumurongo wa switch.Ibisanzwe bikoreshwa ni 100M ya switch na Gigabit.Umuyoboro wabo nyawo muri rusange ni 60 ~ 70% gusa byagaciro ka theoretical, bityo umurongo waboneka wibyambu byabo ni 60Mbps cyangwa 600Mbps.
Urugero:
Reba umugezi umwe ukurikije ikirango cya kamera ya IP ukoresha, hanyuma ugereranye kamera zingahe zishobora guhuzwa na switch.urugero:
Miliyoni 1.3: Kamera imwe ya 960p isanzwe ni 4M, hamwe na 100M ihindura, urashobora guhuza ibice 15 (15 × 4 = 60M);hamwe na gigabit switch, urashobora guhuza 150 (150 × 4 = 600M).
Miliyoni 2: Kamera 1080P ifite umugezi umwe mubisanzwe 8M, hamwe na 100M ihindura, urashobora guhuza ibice 7 (7 × 8 = 56M);hamwe na gigabit ya switch, urashobora guhuza ibice 75 (75 × 8 = 600M) Izi ninzira nyamukuru Fata kamera ya H.264 nkurugero rwo kugusobanurira, H.265 irashobora kugabanywa kabiri.
Kubijyanye numuyoboro wa topologiya, urusobe rwibanze rusanzwe ni ibice bibiri kugeza kuri bitatu.Impera ihuza kamera nuburyo bwo kugera, kandi 100M ihinduka muri rusange irahagije, keretse niba uhuza kamera nyinshi na switch imwe.
Igiteranyo cyo guteranya hamwe nibice byingenzi bigomba kubarwa ukurikije amashusho angahe uhinduranya.Uburyo bwo kubara nuburyo bukurikira: niba uhujwe na kamera ya 960P ya kamera, mubisanzwe mumiyoboro 15 yamashusho, koresha 100M ya switch;niba imiyoboro irenga 15, koresha gigabit;niba uhujwe na kamera ya neti 1080P, mubisanzwe mumiyoboro 8 yamashusho, koresha 100M ihindura, imiyoboro irenga 8 ikoresha Gigabit.
Icya kabiri, ibisabwa byo guhitamo
Umuyoboro wo gukurikirana ufite ibyiciro bitatu byubatswe: urwego rwibanze, igiteranyo cyo guteranya, hamwe nuburyo bwo kugera.
1. Guhitamo uburyo bwo guhinduranya ibice
Imiterere 1: Kode ya kamera ya kamera: 4Mbps, kamera 20 ni 20 * 4 = 80Mbps.
Nukuvuga ko, icyambu cyo kohereza cya enterineti kigomba kuba cyujuje igipimo cyo kohereza 80Mbps / s.Urebye igipimo nyacyo cyo kohereza cya switch (mubisanzwe 50% byagaciro kizina, 100M ni nka 50M), bityo rero uburyo bwo kugeraho Guhindura bigomba guhitamo icyerekezo hamwe na port ya 1000M yohereza.
Imiterere ya 2: Umuyoboro winyuma winyuma ya switch, niba uhisemo icyambu cya 24-cyambu gifite ibyambu bibiri 1000M, ibyambu 26 byose hamwe, hanyuma ibyerekezo byinyuma byumuvuduko wibisabwa kugirango uhindurwe ni: (24 * 100M * 2 + 1000 * 2 * 2) /1000=8.8Gbps umugongo winyuma.
Imiterere ya 3: Igipimo cyo kohereza paki: Igipimo cyo kohereza paki yicyambu cya 1000M ni 1.488Mpps / s, hanyuma igipimo cyo guhinduranya ibintu kuri enterineti ni: (24 * 100M / 1000M + 2) * 1.488 = 6.55Mpps.
Ukurikije ibisabwa haruguru, mugihe kamera 20 720P zahujwe na switch, switch igomba kuba ifite byibura icyambu kimwe cyohereza 1000M hamwe nicyambu kirenga 20 100M kugirango byuzuze ibisabwa.

2. Guhitamo icyegeranyo cyo guhuza ibice
Niba byose hamwe 5 byahujwe, buri cyuma gifite kamera 20, naho code ya code ni 4M, noneho traffic ya layer igiteranyo ni: 4Mbps * 20 * 5 = 400Mbps, noneho icyambu cyo kohereza murwego rwo guteranya kigomba kuba hejuru 1000M.
Niba IPC 5 ihujwe na switch, mubisanzwe birakenewe 8-port ya port, noneho ibi
Ese ibyambu 8 byujuje ibyangombwa?Irashobora kuboneka mubice bitatu bikurikira:
Umuyoboro winyuma: umubare wibyambu * umuvuduko wicyambu * 2 = umugozi winyuma, ni ukuvuga 8 * 100 * 2 = 1.6Gbps.
Igipimo cyo kuvunja paki: umubare wibyambu * umuvuduko wicyambu / 1000 * 1.488Mpps = igipimo cyivunjisha, ni ukuvuga 8 * 100/1000 * 1.488 = 1.20Mpps.
Igipimo cyo kuvunja paki ya bamwe bahinduranya rimwe na rimwe kibarwa kugirango kidashobora kubahiriza iki cyifuzo, bityo rero ni icyuma kidafite insinga-cyihuta, cyoroshye gutera ubukererwe mugihe gikora ibintu byinshi.
Umuyoboro mugari wa Cascade: IPC itemba * ingano = ubwinshi bwumurongo muto wicyambu cyoherejwe, ni ukuvuga 4. * 5 = 20Mbps.Mubisanzwe, iyo umurongo wa IPC urenze 45Mbps, birasabwa gukoresha icyambu cya 1000M.
3. Nigute ushobora guhitamo icyerekezo
Kurugero, hari urusobe rwikigo rufite kamera zirenga 500 zisobanura cyane hamwe na code ya megabayiti 3 kugeza kuri 4.Imiterere y'urusobe igabanijwemo uburyo bwo kugera-igiteranyo-cy'ibanze.Ubitswe murwego rwo guteranya, buri cyiciro cyo guteranya gihuye na kamera 170.
Ibibazo byahuye nabyo: uburyo bwo guhitamo ibicuruzwa, itandukaniro riri hagati ya 100M na 1000M, nizihe mpamvu zituma ihererekanyabubasha ryamashusho murusobe, nizihe mpamvu zijyanye no guhinduranya…
1. Umuyoboro mugari
Inshuro 2 igiteranyo cyubushobozi bwibyambu byose x umubare wibyambu ugomba kuba munsi yumurongo winyuma wa nominal backplane, bigafasha byuzuye-duplex idahagarika insinga-yihuta, byerekana ko switch ifite ibisabwa kugirango ibikorwa byinshi bihindurwe.
Kurugero: icyuma gishobora gutanga ibyambu bigera kuri 48 bya Gigabit, ubushobozi bwayo bwuzuye bugomba kugera kuri 48 × 1G × 2 = 96Gbps, kugirango harebwe ko mugihe ibyambu byose biri muri duplex yuzuye, birashobora gutanga insinga zidahagarika insinga zihuta. .
2. Igipimo cyo kohereza paki
Igipimo cyuzuye cyo kohereza ibicuruzwa (Mbps) = umubare wibyambu bya GE byuzuye × 1.488Mpps + umubare wibyambu 100M byuzuye × 0.1488Mpps, hamwe nibyerekezo byinjira mubyambu bya gigabit mugihe uburebure bwa paki ari 64 bytes ni 1.488Mpps.
Kurugero, niba icyuma gishobora gutanga ibyambu bigera kuri 24 bya gigabit kandi igipimo cyo kohereza ibicuruzwa kiri munsi ya 35.71 Mpps (24 x 1.488Mpps = 35.71), birakwiriye rero gutekereza ko icyuma cyakozwe nigitambaro cyo guhagarika.
Mubisanzwe, icyerekezo gifite umurongo winyuma uhagije hamwe nigipimo cyo kohereza paki nigikoresho gikwiye.
Hindura hamwe ninyuma nini isa nini nini kandi yoroheje ugereranije, usibye kugumana ubushobozi bwo kuzamura no kwaguka, ifite ibibazo bijyanye na software ikora neza / igishushanyo mbonera cya chip;ihinduranya hamwe isa nini ntoya kandi nini nini yinjira ifite imikorere murwego rwo hejuru muri rusange.
Kamera yerekana kamera igira ingaruka mubisobanutse, mubisanzwe aribwo buryo bwa kode yo gushiraho amashusho (harimo nubushobozi bwa kodegisi na decoding yubushobozi bwo kohereza no kwakira ibikoresho, nibindi), aribwo imikorere ya kamera yimbere kandi ifite ntaho bihuriye numuyoboro.
Mubisanzwe abakoresha batekereza ko ibisobanuro bitari hejuru, kandi igitekerezo cyuko biterwa numuyoboro mubyukuri ni ukutumvikana.
Ukurikije urubanza rwavuzwe haruguru, bara:
Umugezi: 4Mbps
Kwinjira: 24 * 4 = 96Mbps <1000Mbps <4435.2Mbps
Igiteranyo: 170 * 4 = 680Mbps <1000Mbps <4435.2Mbps
3. Kwinjira
Icyifuzo nyamukuru ni ihuriro ryagutse hagati yo kwegeranya no kwegeranya, ni ukuvuga, ubushobozi bwo kuzamura ibintu bigomba kuba byinshi kuruta umubare wa kamera zishobora kwakirwa icyarimwe * igipimo cya code.Muri ubu buryo, ntakibazo kijyanye no gufata amashusho mugihe nyacyo, ariko niba umukoresha arimo kureba amashusho mugihe nyacyo, umurongo mugari ugomba kwitabwaho.Umuyoboro mugari ukoreshwa na buri mukoresha kureba amashusho ni 4M.Iyo umuntu umwe arimo kureba, umurongo wa kamera * igipimo cya biti * (1 + N) urasabwa, ni ukuvuga 24 * 4 * (1 + 1) = 128M.
4. Guhuriza hamwe
Igiteranyo cyo kwegeranya gikeneye gutunganya imigezi ya 3-4M (170 * 4M = 680M) ya kamera 170 icyarimwe, bivuze ko guhinduranya igiteranyo gikeneye gushyigikira icyarimwe cyohereza icyarimwe kirenga 680M yubushobozi bwo guhinduranya.Mubisanzwe, ububiko bwahujwe no guteranya, bityo gufata amashusho byoherezwa kumuvuduko winsinga.Nyamara, urebye umurongo mugari wo kureba no kugenzura igihe nyacyo, buri murongo uhuza 4M, kandi 1000M ihuza irashobora gushyigikira kamera 250 kugirango ikemurwe kandi ihamagare.Buri cyuma cyinjira cyahujwe na kamera 24, 250/24, bivuze ko umuyoboro ushobora kwihanganira igitutu cyabakoresha 10 bareba buri kamera mugihe nyacyo icyarimwe.

5. Hindura
Ihinduka ryibanze rigomba gusuzuma ubushobozi bwo guhinduranya hamwe nu murongo uhuza umurongo.Kuberako ububiko bwashyizwe kumurongo wo guteranya, icyerekezo cyibanze ntigifite igitutu cyo gufata amashusho, ni ukuvuga, gikeneye gusa gusuzuma umubare wabantu bareba imiyoboro ya videwo icyarimwe.
Dufashe ko muri uru rubanza, hari abantu 10 bakurikirana icyarimwe, buri muntu ureba imiyoboro 16 ya videwo, ni ukuvuga ko ubushobozi bwo guhana bugomba kuba bunini kuruta
10 * 16 * 4 = 640M.
6. Hindura icyerekezo cyo guhitamo
Mugihe uhitamo sisitemu yo kugenzura amashusho mumurongo waho, guhitamo uburyo bwo kugera kumurongo hamwe no guhuza ibice byahinduwe mubisanzwe bikenera gusa gutekereza kubintu byo guhinduranya ubushobozi, kuberako abakoresha mubisanzwe bahuza kandi bakabona amashusho binyuze mumashanyarazi.Byongeye kandi, kubera ko igitutu nyamukuru kiri kuri switch kuri layer igiteranyo, ntabwo ishinzwe kugenzura gusa ibinyabiziga byabitswe, ahubwo ni n'umuvuduko wo kureba no guhamagara gukurikirana mugihe nyacyo, ni ngombwa rero guhitamo igiteranyo gikwiye. Guhindura.


Igihe cyo kohereza: Werurwe-17-2022