1. Txheej txheem cej luam
Is Taws Nem ntawm Yam khoom siv cov khoom siv rau ntau yam khoom siv tiag tiag xws li daim phiaj hluav taws xob, railways, txuas hniav, tunnels, txoj kev loj, cov tsev, cov kav dej, cov kav dej, cov kav dej, roj thiab roj, thiab cov khoom siv hauv tsev, thiab txuas rau hauv Internet, thiab tom qab ntawd khiav. cov kev pab cuam tshwj xeeb kom ua tiav cov chaw taws teeb tswj lossis kom ua tiav kev sib txuas lus ncaj qha ntawm txhua yam. Los ntawm Is Taws Nem ntawm Yam, lub khoos phis tawj hauv nruab nrab tuaj yeem siv los tswj hwm thiab tswj cov tshuab, khoom siv, thiab cov neeg ua haujlwm, nrog rau cov chaw taws teeb tswj cov khoom siv hauv tsev thiab tsheb, nrog rau ntau yam kev siv xws li nrhiav qhov chaw thiab tiv thaiv cov khoom los ntawm kev nyiag khoom. . Hauv ntau daim ntawv thov saum toj no, tsis muaj qhov tsis muaj lub tshuab hluav taws xob, thiab POE (POwerOverEthernet) yog lub tshuab uas tuaj yeem xa hluav taws xob thiab cov ntaub ntawv mus rau lub cuab yeej los ntawm ib khub sib tw hauv Ethernet. Los ntawm cov thev naus laus zis no, suav nrog cov xov tooj hauv Is Taws Nem, wireless hauv paus chaw nres tsheb, lub koob yees duab network, hubs, ntse terminals, cov cuab yeej ntse hauv chaw ua haujlwm niaj hnub, khoos phis tawj, thiab lwm yam., POE thev naus laus zis tuaj yeem siv los muab lub zog los ua kom tiav cov haujlwm ntawm ntau yam khoom siv. Cov khoom siv hluav taws xob uas siv los ntawm lub network tuaj yeem siv yam tsis muaj lub qhov hluav taws xob ntxiv, yog li tib lub sijhawm nws tuaj yeem txuag lub sijhawm thiab nyiaj txiag rau kev teeb tsa lub zog, kom tus nqi ntawm tag nrho cov cuab yeej siv tau raug txo qis. Nrog rau kev siv dav dav ntawm Ethernet, RJ-45 network sockets tau siv dav hauv ntiaj teb, yog li txhua yam ntawm POE cov khoom siv tau sib xws. POE tsis tas yuav hloov cov qauv cable ntawm Ethernet Circuit Court rau kev khiav lag luam, yog li kev siv POE tsis tsuas yog txuag nqi, yooj yim rau xaim thiab nruab, tab sis kuj muaj peev xwm ua kom muaj hluav taws xob thiab tawm ntawm qhov chaw deb.
2.Qhov kev thov tseem ceeb ntawm POE hauv Is Taws Nem ntawm Yam
Nrog rau kev txhim kho thev naus laus zis thiab kev siv, lub ntsiab lus ntawm Is Taws Nem ntawm Yam tseem nthuav dav, thiab kev nkag siab tshiab tau tshwm sim - Internet of Things yog daim ntawv thov nthuav dav thiab txuas ntxiv ntawm kev sib txuas lus network thiab Is Taws Nem. Nws siv kev nkag siab thev naus laus zis thiab cov cuab yeej ntse kom pom thiab paub txog lub ntiaj teb lub cev. Kev sib txuas hauv network thiab kev sib txuas, kev suav, kev ua haujlwm thiab kev paub tsuas, paub txog kev sib cuam tshuam ntawm cov ntaub ntawv thiab kev sib txuas ntawm tib neeg thiab khoom, thiab cov khoom thiab cov khoom, thiab ua tiav lub hom phiaj ntawm kev tswj hwm lub sijhawm, kev tswj xyuas meej thiab kev txiav txim siab tshawb fawb ntawm lub ntiaj teb lub cev. . Yog li, lub network yuav tsis ua raws li cov kev xav tau ntawm cov neeg siv, tab sis yuav nquag pom cov kev hloov pauv hauv cov neeg siv khoom, ua cov ntaub ntawv sib cuam tshuam, thiab muab cov neeg siv nrog cov kev pabcuam tus kheej.
Qhov cuam tshuam ntawm wireless network technology rau tib neeg yog indisputable. Daim ntawv thov ntau yam ntawm wireless hauv cheeb tsam network tau dhau los ua dav thiab dav, nyob rau hauv cov chaw ua haujlwm loj, cov tsev khaws khoom ntse, tsev kawm ntawv qib siab, khw malls, tshav dav hlau, rooj sib tham thiab chaw ua yeeb yam, tsev so, tshav dav hlau, tsev kho mob, thiab lwm yam Bars, kas fes kav, thiab lwm yam. cov kev xav tau ntawm cov neeg mus ncig hauv Internet txhua sij hawm, nyob qhov twg. Nyob rau hauv tus txheej txheem ntawm deploying ib tug wireless network, txoj hauj lwm tseem ceeb tshaj plaws yog qhov tsim nyog thiab zoo installation ntawm wireless AP (AccessPOint). TG huab platform tuaj yeem muab tag nrho cov kev tswj hwm hauv lub hauv paus, tsim nyog thiab muaj txiaj ntsig zoo. Hauv cov phiaj xwm kev them nyiaj wireless loj dua, muaj ntau tus wireless APs thiab lawv tau muab faib rau ntau qhov chaw ntawm lub tsev. Feem ntau, APs xav tau cov kab txuas txuas txuas mus rau cov keyboards thiab kev sib txuas sab nraud. DC fais fab mov. Kev daws lub zog thiab kev tswj hwm ntawm qhov chaw yuav ua rau muaj txiaj ntsig zoo rau kev tsim kho thiab kho. "UNIP" fais fab movhloovdaws qhov teeb meem ntawm lub hauv paus fais fab mov ntawm wireless APs los ntawm network cable fais fab mov (POE), uas tuaj yeem daws tau cov teeb meem ntawm lub zog hluav taws xob hauv zos tau ntsib thaum lub sijhawm tsim kho thiab cov teeb meem AP yav tom ntej. Qhov no tiv thaiv tus kheej APs tsis ua haujlwm zoo thaum lub sijhawm hluav taws xob ib nrab. Hauv qhov kev daws teeb meem no, nws yog qhov yuav tsum tau siv cov cuab yeej AP uas txhawb nqa 802.3af / 802.3af raws tu qauv kom ua tiav cov haujlwm ntawm lub network cable fais fab mov. Yog tias AP tsis txhawb nqa 802.3af / 802.3af raws tu qauv muaj nuj nqi, koj tuaj yeem ncaj qha nruab cov ntaub ntawv thiab POE synthesizer kom ua tiav cov khoom siv fais fab no. Raws li pom hauv daim duab 1:
3. Daim ntawv thov ntawm POE ntse terminals hauv Internet ntawm Yam
Thaum hu hauv tsev, yog tias muaj hluav taws xob tam sim ntawd, kev hu yuav tsis cuam tshuam. Qhov no yog vim hais tias lub hwj chim ntawm lub xov tooj davhlau ya nyob twg yog muab ncaj qha los ntawm lub tuam txhab xov tooj (chaw ua hauj lwm hauv nruab nrab)hloovlos ntawm kab xov tooj. Xav txog tias yog tias cov kev lag luam teb sensors, controllers thiab ntse terminal actuators hauv Is Taws Nem ntawm Yam tseem tuaj yeem siv ncaj qha los ntawm Ethernet rau cov khoom siv hauv chaw ua haujlwm niaj hnub no, ces tag nrho cov xaim, hluav taws xob, kev ua haujlwm thiab lwm yam nqi yuav raug txo kom ntau, thiab txuas ntxiv. Kev saib xyuas rau ntau yam kev siv tej thaj chaw deb, qhov no yog lub zeem muag pom los ntawm POE thev naus laus zis rau kev tswj hwm kev lag luam hauv Is Taws Nem ntawm Yam. Hauv xyoo 2003 thiab 2009, IEEE tau pom zoo rau 802.3af thiab 802.3at cov qauv raws li tau hais tseg, uas tau qhia meej txog cov khoom siv hluav taws xob tshawb pom thiab tswj cov khoom hauv cov chaw taws teeb, thiab siv Ethernet cables raurouters, keyboards, thiab hubs sib txuas lus nrog IP xov tooj, kev ruaj ntseg systems, thiab wireless Lub hwj chim mov txoj kev rau cov khoom siv xws li LAN nkag mus rau cov ntsiab lus yog tswj. Kev tso tawm ntawm IEEE802.3af thiab IEEE802.3at tau txhawb nqa kev txhim kho thiab kev siv POE thev naus laus zis.