Nekuvandudzwa kwehupfumi nekufambira mberi kwevanhu, vanhu vari kuungana zvakanyanya pachena. Panguva imwe cheteyo, mhaka dzinokuvadza dzechengeteko yevoruzhinji dzinounzawo zvinetso zvakakomba kunzanga inowirirana. Makamera uye Surveillance system inogona kupa chaiyo-nguva yekutarisa mavhidhiyo uye mavhidhiyo ekurekodha mabasa, zvichipa hwaro hwakakosha hwekuunganidza mushure meuchapupu.Kukurumidza kukura kweKamera uye Surveillance system inopa nzira inoshanda yekuvakwa kwe "guta rinowirirana".Data yakaunganidzwa kubva mapikicha ekuunganidza mifananidzo akagoverwa muCameras uye Surveillance system inoda kuendeswa kune server munguva chaiyo yekuona, kuongorora uye summary.Data transmission access network inzvimbo yakaoma mukuvakwa kwekutarisa kwemaguta uye alarm network system, uye basa rinokosha re chirongwa chekufambisa data chiri kuwedzera kuve chakakurumbira. EPON, iyo inogona kupa yakakwira bandwidth kuwana, yave tekinoroji yakakosha iyo kushandiswa kwayo kukuru kwekutengesa kunovimba nayo.
Nekuvandudzwa kwehunyanzvi hwekutaurirana, tekinoroji yeEPON yakaunzwa zvishoma nezvishoma mumunda wekutarisa kuchengetedza. Iyo bandwidth yekuwana tekinoroji yepoint-to-multipoint network chimiro uye passive optical fiber transmission mode.
Parizvino, zvakanakira EPON tekinoroji zvinoratidzwa zvishoma nezvishoma, kunyanya mumakamera uye Surveillance application. Kana EPON ikaiswa kune yekutarisa network modhi, inogona kupa kutamba kwakazara kune kwayo kwakanakira bandwidth yakakwira uku ichigadzirisa iyo yekutanga vhidhiyo data kutapurirana nemutengo wakaderera, uye ayo akapusa uye anochinjika maitiro anogona kuderedza zvakanyanya mutengo wakazara uye kuchengetedza mutengo wetiweki. .
EPON network ine zvinotevera zvakanakira:
1.Kuvimbika kwepamusoro. EPON inopatsanura uye inopenya fiber. Iine hupenyu hurefu hwebasa uye haina midziyo inoshanda. Inodzivirira kutadza kwemagetsi, kurova kwemheni, overcurrent uye overvoltage kukuvara, etc. Iyo network ine kuvimbika kwakanyanya uye inoderedza mari yekuchengetedza.
2.mutengo wakaderera. EPON tekinoroji ye-single-core fiber transmission, kuchengetedza hafu yefiber pane yakajairwa faibha kutapurirana. Pamusoro pezvo, EPON haidi simba rekunze panguva yekufambisa, iri nyore kuisa, uye haidi kugadzirisa, iyo inogona kuchengetedza mari yekushandisa uye manejimendi mari.
3.High bandwidth.1Gmps symmetric transmission rate, inogona kusangana nyore nekutakura zvinodiwa zvevhidhiyo yekuongorora mabasa. Iyo bandwidth yeumwe neumweONUinogona kugadziridzwa zvine simba pakati pe2M ne1Gmps. Avhareji yekumusoro bandwidth yeOLTport mune imwe neimweONUinenge 30M, iyo inonyatsozadzisa zvinodiwa neIPTV.
4.EPON ine mari yakakwirira yekuita uye EPON inomhanya inogona kusvika kune imwechete yakakwirira bandwidth yekumusoro uye pasi pe 1.25Gb / s. Iyo yakanyanya kukurumidza inogona kusvika 10Gb / s, kureba kwekufambisa kure kunogona kusvika 20km, iyo yakakodzera chaizvo kufukidzwa kwemetropolitan area network, uye inovhara huwandu hwenzvimbo yepakati nepakati.
5.The networking inoshanduka, uye yepamusoro-soro ye optical split ratio ndeye 1:64. Iyo yemuti-yakaita setiweki chimiro inogamuchirwa kuti igadzire poindi-to-multipoint mushandisi network topology kuburikidza nekubatanidzwa kweakasiyana optical splitters. Kuburikidza nekuronga kwakanaka kwetiweki uye dhizaini, zviwanikwa zvefiber zvinogona kuchengetedzwa zvakanyanya. Ndiyo mhinduro yakanaka kune dambudziko rekuunganidza mifananidzo uye kupararira.
EPON Technology Principle
EPON (Ethernet Passive Optical Network) Iyo Ethernet passive optical network chigadzirwa chemusanganiswa wakakwana weEthernet tekinoroji nePON tekinoroji.
Kuitira kupatsanura masaini mukufambisa uye kugashira nzira yevashandisi vakawanda pane imwechete fiber, maviri anotevera akawanda tekinoroji anogamuchirwa: iyo downlink data stream inotora tekinoroji yekutepfenyura, uye iyo uplink data rwizi inotora tekinoroji yeTDMA.
EPON application mumakamera uye kuongorora
EPON tekinoroji inoratidzirwa nepamusoro bandwidth, kugadzikana kwepamusoro uye kushandiswa kwakanyanya kwezviwanikwa zvemutsara. Iyi tekinoroji ine zvayakanakira zvayakanakira pacampasi monitoring.Chekutanga, campus monitoring inoda yakakwirira-kumhanya, yemhando yepamusoro yakavanzika network nharaunda kuti itakure ayo emhando yepamusoro mavhidhiyo masevhisi.EPON tekinoroji inopa uplink uye downlink symmetric 1Gbps bandwidth, inogona kusangana zvizere zvinoda masevhisi evhidhiyo.Chechipiri, EPON's flexible topological structure inonyanya kutarisira kupararira kwakapararira kwepaki.Ingave iri boka rakakora rezvivakwa kana mugwagwa wakamanikana, unogona kuiswa netiweki yakakodzera.Pakupedzisira, kuchengetedzwa kwepamusoro uye kugadzikana. yeEPON inokwidziridzawo tekinoroji yekuwana tekinoroji yekutarisisa kwepaki kune imwe nhanho.
Kana nzvimbo dzekutarisa dzepamusoro-density dzichidikanwa pakati pepaki, EPON inogona kutora yakajairika networking. Imwe PON chiteshi cheOLTmidziyo yakabatana ne1: N spectrometer. Mushure mekusvika kumberi-kumagumo optical node, akawandaONUmidziyo yakabatana.Tora zvizere kureba kwe optical fiber transmission, inosvika kune zvose zvinoda kuiswa munzvimbo.Iyo spare fiber inogona kuchengetwa kuti iwane kuwedzera kwekuwedzera.
Kuongororwa kwemigwagwa yakapoteredza kunogona kuitwa nenzira ye-zigzzagging yekubatanidza nzvimbo dzekutarisa mugwagwa munhevedzano.Munzvimbo duku yenharaunda, EPON ine hurefu hunobudirira hwe20KM inogona kupa mukana. Munzvimbo yakakura, nzira dzakawanda dzinogona kushandiswa kugadzirisa dambudziko redaro.