I-Cffiberlink inomlinganiselo ocebileyo kakhulu wokusabalalisa kunye nokuhanjiswa kwemveliso, kubandakanywa utshintsho olulawulwa yi-industrial-grade ye-5G yezixhobo zonxibelelwano zefiber optical, i-POE ehlakaniphile, i-network switches, kunye ne-SFP optical modules. Phakathi kwabo, umgca wemveliso yokutshintsha yedwa uqalise iimodeli ezingaphezu kwe-100.
Zininzi iimodeli, kwaye akunakuphepheka ukuba kuya kubakho amaxesha apho ukhazimla.
Namhlanje, siza kucwangcisa ngokucwangcisiweyo indlela yokukhetha yokutshintsha kwakho.
01【Khetha iGigabit okanye i-100M】
Kwinethiwekhi yenkqubo yokujonga ividiyo, inani elikhulu ledatha yevidiyo eqhubekayo kufuneka idluliselwe, efuna ukuba utshintsho lube namandla okuzinza phambili idatha. Okukhona iikhamera ziqhagamshelwe kwiswitshi, kokukhona isixa esikhulu sedatha ehamba ngokutshintsha. Sinokucinga ukuba ukuhamba kwekhowudi njengoko amanzi ahamba, kwaye iiswitshi ziyi-junctions zokugcinwa kwamanzi nganye nganye. Nje ukuba amanzi aqukuqelayo agqithise umthwalo, idama liya kugqabhuka. Ngokufanayo, ukuba inani ledatha elithunyelwe yikhamera phantsi kokutshintsha lidlula amandla okuthunyelwa kwe-port, kuya kubangela ukuba i-port ilahle inani elikhulu ledatha kwaye ibangele iingxaki.
Ngokomzekelo, i-100M yokutshintshela umthamo wedatha yokudlulisa i-100M iya kubangela inani elikhulu lokulahleka kwepakethi, okubangela ukuba kwenzeke i-blurred screen kwaye ibambelele.
Ke, zingaphi iikhamera ezifuna ukuqhagamshelwa kwi-gigabit switch?
Kukho umgangatho, jonga ubungakanani bedatha edluliselwe kwizibuko eliphezulu lekhamera: ukuba inani ledatha eligqithiselwe kwizibuko elinyukayo lingaphezulu kwe-70M, khetha i-gigabit port, oko kukuthi, khetha i-gigabit switch okanye i-gigabit. tshintsha ikhonkco
Nantsi indlela yokubala ekhawulezayo kunye nendlela yokukhetha:
Ixabiso le-Bandwidth = (umsinga ongaphantsi + umjelo oyintloko) * inani lamajelo * 1.2
①Bandwidth value>70M, sebenzisa iGigabit
②Ixabiso lobubanzi <70M, sebenzisa i-100M
Umzekelo, ukuba kukho iswitshi eqhagamshelwe kwiikhamera ze-20 H.264 200W (4 + 1M), ngoko ngokutsho kolu balo, izinga lokuthunyelwa kwe-uplink port (4 + 1) * 20 * 1.2 = 120M > 70M, kule meko, kufuneka kusetyenziswe utshintsho lwegigabit. Kwezinye iimeko, i-port enye kuphela yokutshintsha kufuneka ibe yi-gigabit, kodwa ukuba isakhiwo senkqubo asikwazi ukulungiswa kwaye i-traffic inokulungelelaniswa, ngoko ke i-gigabit switch okanye i-gigabit uplink switch iyadingeka.
Umbuzo 1: Inkqubo yokubala yomzila wekhowudi icacile, kodwa kutheni iphindaphinda ngo-1.2?
Ngenxa yokuba ngokomgaqo wonxibelelwano womnatha, i-encapsulation yeepakethi zedatha iphinda ilandele i-protocol ye-TCP / IP, kwaye inxalenye yedatha kufuneka iphawulwe ngamasimi eentloko zoluhlu lweprotocol nganye ukuba idluliselwe kakuhle, ngoko ke i-header iya kuba nayo. ipesenti ethile ye-overhead.
Ikhamera ye-4M bit rate, i-2M bit rate, njl. Sihlala sithetha malunga ngokubhekiselele kubungakanani bedatha inxalenye. Ngokomlinganiselo wonxibelelwano lwedatha, i-overhead ye-header akhawunti malunga ne-20%, ngoko ke ifomula kufuneka iphindwe nge-1.2.
Ke, zingaphi iikhamera ezifuna ukuqhagamshelwa kwi-gigabit switch?
Kukho umgangatho, jonga ubungakanani bedatha edluliselwe kwizibuko eliphezulu lekhamera: ukuba inani ledatha eligqithiselwe kwizibuko elinyukayo lingaphezulu kwe-70M, khetha i-gigabit port, oko kukuthi, khetha i-gigabit switch okanye i-gigabit. tshintsha ikhonkco.
Ixesha lokuposa: Sep-23-2022