Cffiberlink ili ndi mzere wolemera kwambiri wogawa ndi kutumiza katundu, kuphatikizapo masinthidwe oyendetsedwa ndi mafakitale a 5G optical fiber communication equipment, POE wanzeru, ma switch switch, ndi SFP optical modules. Pakati pawo, mzere wazosintha wokha wakhazikitsa mitundu yopitilira 100.
Pali zitsanzo zambiri, ndipo n'zosapeŵeka kuti padzakhala nthawi yomwe mudzakhala wonyezimira.
Lero, tikusankhirani mwadongosolo njira yosinthira ma switch anu.
01【Sankhani Gigabit kapena 100M】
Mu netiweki ya kanema wowonera kanema, kuchuluka kwamavidiyo opitilira mavidiyo kumafunika kufalitsidwa, zomwe zimafunikira kuti kusinthaku kukhale ndi kuthekera kopititsa patsogolo deta. Makamera ochulukirachulukira ku switch, m'pamenenso kuchuluka kwa data kumayenda kudzera pa switch. Titha kuganiza kuti ma code akuyenda pamene madzi akuyenda, ndipo masiwichi ndi njira zosungira madzi imodzi ndi imodzi. Madzi oyenda akapitilira katunduyo, damulo limaphulika. Mofananamo, ngati kuchuluka kwa deta yotumizidwa ndi kamera pansi pa chosinthira kupitirira kupititsa patsogolo kwa doko, kumapangitsanso kuti doko lichotse deta yambiri ndikuyambitsa mavuto.
Mwachitsanzo, 100M kusintha kwa data voliyumu yopitilira 100M kumapangitsa kuti paketi iwonongeke, zomwe zimapangitsa kuti pakhale mawonekedwe osawoneka bwino komanso osakhazikika.
Ndiye, ndi makamera angati omwe akuyenera kulumikizidwa ndi switch ya gigabit?
Pali muyezo, yang'anani kuchuluka kwa deta yomwe imatumizidwa ndi doko lakumtunda la kamera: ngati kuchuluka kwa deta yotumizidwa ndi doko lakumtunda kuli kwakukulu kuposa 70M, sankhani doko la gigabit, ndiko kuti, sankhani kusintha kwa gigabit kapena gigabit. kusintha kwa uplink
Nayi njira yowerengera mwachangu ndi kusankha:
Bandwidth value = (mtsinje waung'ono + mtsinje waukulu) * chiwerengero cha mayendedwe * 1.2
①Bandwidth value>70M, gwiritsani ntchito Gigabit
②Bandwidth value <70M, gwiritsani ntchito 100M
Mwachitsanzo, ngati pali chosinthira cholumikizidwa ku makamera a 20 H.264 200W (4 + 1M), ndiye malinga ndi kuwerengera uku, kutumizira kwa doko la uplink ndi (4 + 1) * 20 * 1.2 = 120M > 70M, Pankhaniyi, kusintha kwa gigabit kuyenera kugwiritsidwa ntchito. Muzochitika zina, doko limodzi lokha losinthira liyenera kukhala gigabit, koma ngati dongosolo silingathe kukonzedwa bwino ndipo magalimoto amatha kukhala oyenera, ndiye kuti kusintha kwa gigabit kapena gigabit uplink switch kumafunika.
Funso 1: Njira yowerengera ma code stream ndi yomveka bwino, koma bwanji muchulukitse ndi 1.2?
Chifukwa molingana ndi mfundo ya kulumikizana kwa maukonde, encapsulation ya mapaketi a data imatsatiranso protocol ya TCP/IP, ndipo gawo la data liyenera kulembedwa ndi minda yamutu pagawo lililonse la protocol kuti ifalitsidwe bwino, kotero mutu udzakhalanso ndi ena peresenti ya pamwamba.
The kamera 4M pang'ono mlingo, 2M pang'ono mlingo, etc. ife kawirikawiri kulankhula kwenikweni amanena kukula kwa gawo deta. Malinga ndi kuchuluka kwa kulumikizana kwa data, mutu wamutu umakhala pafupifupi 20%, chifukwa chake fomuyo iyenera kuchulukitsidwa ndi 1.2.
Ndiye, ndi makamera angati omwe akuyenera kulumikizidwa ndi switch ya gigabit?
Pali muyezo, yang'anani kuchuluka kwa deta yomwe imatumizidwa ndi doko lakumtunda la kamera: ngati kuchuluka kwa deta yotumizidwa ndi doko lakumtunda kuli kwakukulu kuposa 70M, sankhani doko la gigabit, ndiko kuti, sankhani kusintha kwa gigabit kapena gigabit. kusintha kwa uplink.
Nthawi yotumiza: Sep-23-2022