Nkhani

Onse Multiplexers ndi Power Divider ndi zida zothandiza kukulitsa kuchuluka kwa tinyanga zomwe zitha kulumikizidwa ndi doko la owerenga. Ubwino umodzi waukulu ndikuchepetsa mtengo wa pulogalamu ya UHF RFID pogawana zida zodula. Mu positi iyi yabulogu, tikufotokoza kusiyana kwake ndi zomwe ziyenera kuganiziridwa posankha chida choyenera cha pulogalamu yanu.

Kodi multiplexer ndi de-multiplexer ndi chiyani?

Kuti timvetsetse chomwe RFID owerenga Multiplexer ali tifotokozera mwachangu cholinga cha ma multiplexers (mux) ndi de-multiplexers (de-mux).

Multiplexer ndi chipangizo chomwe chimasankha chimodzi mwazinthu zingapo zolowera ndikuchitumiza kuzinthu zina.

A demultiplexer ndi chipangizo chomwe chimatumiza chizindikiro ku chimodzi mwazotulutsa zingapo.

Ma multiplexer ndi de-multiplexer amafunikira masiwichi kuti asankhe zolowetsa ndi/kapena zotuluka. Masiwichi awa ali ndi mphamvu, motero mux ndi de-mux ndi zida zogwira ntchito.

Kodi RFID reader multiplexer ndi chiyani?

RFID reader multiplexer ndi chipangizo chomwe chimaphatikizira mux ndi de-mux. Imakhala ndi doko limodzi lolowera / zotulutsa ndi madoko ambiri otulutsa / olowetsa. Doko limodzi la mux/de-mux nthawi zambiri limalumikizidwa ndi owerenga RFID pomwe madoko angapo amaperekedwa kuti alumikizane ndi mlongoti.

Imatumiza chizindikiro kuchokera padoko la owerenga RFID kupita kumodzi mwamadoko angapo otulutsa kapena kutumiza ma siginecha kuchokera kumodzi mwamadoko angapo olowera kudoko la owerenga RFID.

Kusintha kokhazikika kumasamalira kusintha kwa ma sigino pakati pa madoko ndi nthawi yake yosinthira.

RFID multiplexer imathandizira kulumikizidwa kwa tinyanga zingapo padoko limodzi la owerenga RFID. Kukula kwa siginecha yosinthidwa sikukhudzidwa kwambiri, mosasamala kanthu za kuchuluka kwa madoko mu mux/de-mux.

Mwanjira imeneyi, 8-port RFID multiplexer, mwachitsanzo, imatha kukulitsa owerenga 4-doko kukhala owerenga 32-doko RFID.

Mitundu ina imatchanso mux wawo hub.

Kodi chogawa mphamvu (chigawa champhamvu) ndi chophatikiza mphamvu ndi chiyani?

Wogawa mphamvu (splitter) ndi chipangizo chomwe chimagawanitsa mphamvu. Chogawitsa mphamvu cha 2-port chimagawa mphamvu yolowera muzotulutsa ziwiri. Kukula kwa mphamvu kumachepetsedwa ndi theka pamadoko otulutsa.

Chogawa mphamvu chimatchedwa chophatikizira mphamvu chikagwiritsidwa ntchito mobwerera.

Nazi mwachidule za kusiyana pakati pa mux ndi chogawa mphamvu:

MUX	MPHAMVU DIVIDER
Mux imakhala ndi kutayika kwamagetsi pafupipafupi pamadoko mosasamala kanthu za kuchuluka kwa madoko. A 4-port, 8-port, ndi 16-port mux sadzakhala ndi zotayika zosiyana pa doko.	Chogawira mphamvu chigawanitse mphamvuzo kukhala ½ kapena ¼ ​​kutengera kuchuluka kwa madoko omwe alipo. Kuchepetsa kwakukulu kwamagetsi kumachitika padoko lililonse pomwe kuchuluka kwa madoko kumawonjezeka.
Mux ndi chipangizo chogwira ntchito. Pamafunika mphamvu ya DC ndi ma sign owongolera kuti agwire ntchito.	Chogawitsa mphamvu ndi chipangizo chongokhala. Sichifuna zowonjezera zowonjezera kuposa kulowetsa kwa RF.
Si madoko onse omwe ali mumsewu wamitundu yambiri omwe amayatsidwa nthawi imodzi. Mphamvu ya RF imasinthidwa pakati pa madoko. Mlongoti umodzi wokha wolumikizidwa umakhala ndi mphamvu panthawi imodzi, ndipo liwiro losinthira limakhala lothamanga kwambiri kotero kuti tinyanga sizidzaphonya tag yowerengedwa.	Madoko onse omwe ali mugawo lamagetsi ambiri amapeza mphamvu mofanana komanso nthawi imodzi.
Kudzipatula kwakukulu pakati pa madoko kumatheka. Izi ndizofunikira kuti mupewe kuwerengedwa kwa ma tag pakati pa tinyanga. Kudzipatula nthawi zambiri kumakhala pamlingo wa 35 dB kapena kupitilira apo.	Kudzipatula kwa doko ndikocheperako poyerekeza ndi Mux. Kudzipatula kumadoko kumakhala mozungulira 20 dB kapena kupitilira apo. Kuwerengedwa kwa ma tag osiyanasiyana kumatha kukhala vuto.
Imakhudza pang'ono kapena ilibe mphamvu pamtengo wa tinyanga kapena kuletsa.	Pamene chogawa magetsi sichikugwiritsidwa ntchito moyenera, minda ya RF imatha kuthetsedwa, ndipo mtengo wa RF wa antenna ukhoza kusinthidwa kwambiri.
Palibe ukadaulo wa RF wofunikira kukhazikitsa Mux. Mux iyenera kuyendetsedwa ndi pulogalamu ya owerenga RFID.	Ukatswiri wa RF ndi wofunikira kukhazikitsa zogawa mphamvu ndikukwaniritsa njira yogwirira ntchito. Chogawira mphamvu choyikidwa molakwika chingawononge kwambiri magwiridwe antchito a RF.
Palibe kusintha kwa mlongoti komwe kungatheke	Kusintha kwa mlongoti mwamakonda ndikotheka. Kutalika kwa mtengo wa antenna, ngodya yamtengo, ndi zina zotere zitha kusinthidwa.

Si Chuan Keenlion Microwave kusankha kwakukulu, kuphimba ma frequency kuchokera ku 0.5 mpaka 50 GHz. Amapangidwa kuti azigwira kuchokera pa 10 mpaka 200 watts kulowetsa mphamvu mu 50-ohm transmission system. Mapangidwe a Cavity amagwiritsidwa ntchito, ndipo amakometsedwa kuti agwire bwino ntchito.

Zambiri mwazinthu zathu zidapangidwa kuti zitha kuponyedwa pansi pa heatsink, ngati kuli kofunikira. Amakhalanso ndi matalikidwe apadera komanso kusanja kwa gawo, ali ndi mphamvu zogwirira ntchito kwambiri, milingo yabwino kwambiri yodzipatula ndipo amabwera ndi phukusi lolimba.

Titha kusinthanso makonda a rf passive malinga ndi zomwe mukufuna. Mutha kulowamakondatsamba kuti mupereke zofunikira zomwe mukufuna.