Chiyambi
Malo olandirira alendo, masukulu ophunzitsa, mabungwe azachipatala, ndi ogwira ntchito ang'onoang'ono a CATV nthawi zambiri amakumana ndi vuto lofanana ndi makina akale ogawa ma TV a coaxial. Zipangizo zamakono zambiri zamakanema kuphatikiza osewera a HD media, makina owunikira a NVR ndi zida zotsatsira makanema zimangothandizira kutulutsa kwa HDMI. Komabe, ma TV achikhalidwe a analog ndi zomangamanga za coaxial zomwe zilipo zitha kulandira zizindikiro za RF analog zokha. Kusintha chingwe chonse kapena kukhazikitsa bokosi la set-top kumafuna ndalama zambiri ndipo kumapangitsa kuti oyang'anira malo azikhala ndi mavuto osamalira.
Chosinthira cha AH1916H 16-in-1 HDMI Input Analog Fixed Channel Modulator chimathetsa mavuto enieni amakampani awa. Chopangidwa ndi Hangzhou Softel Optic Co., Ltd., kampani yodziwa bwino ntchito ya CATV ndi fiber optic yomwe ili ku Hangzhou High-tech Zone, chipangizochi chimasintha magwero 16 a kanema wa HDMI wapamwamba kukhala njira zokhazikika za analog RF. Zizindikiro zonse zokonzedwa zimaphatikizidwa kukhala chotulutsa chimodzi cha coaxial kuti chigawike chizindikiro chonse pamalo onse.
Mosiyana ndi ma modulator a single-channel omwe amawononga malo m'makabati ndikupanga kusokoneza kwa ma signal mosavuta, izi16 njira yokhazikika pafupipafupi ya CATV modulator Imaphatikiza ma module 16 odziyimira pawokha mu chassis yaying'ono ya rack ya 4RU. Yokhala ndi ukadaulo wolondola wa MCU RF frequency locking, imasunga kulondola kwa njira nthawi zonse ikagwiritsidwa ntchito kwa nthawi yayitali, zomwe zimapangitsa kuti ikhale yankho lodalirika komanso lotsika mtengo pamapulojekiti okonzanso ma TV a analog apakatikati padziko lonse lapansi.
Ubwino Waukulu Waukadaulo wa Softel AH1916H Modulator
1. Kapangidwe ka Njira Yodziyimira Payokha kamathetsa Kukambirana kwa Zizindikiro
Cholowera chilichonse cha HDMI pa AH1916H chimalumikizana ndi njira yokhazikika ya analog RF yokhala ndi kapangidwe ka circuit kosagwirizana pakati pa ma module osiyanasiyana. Chipangizochi chimathandizira kukhazikitsidwa kwa ma frequency a fakitale pa 47~862MHz spectrum, mogwirizana ndi miyezo yapadziko lonse lapansi yowulutsa kuphatikizapo PAL D/K, PAL B/G ndi NTSC. Ndi kulondola kwa ma frequency komwe kumayendetsedwa mkati mwa ±10KHz, chimapewa kwathunthu mavuto okhudzana ndi ma crosstalk apafupi omwe amapezeka kwambiri mu ma modulators otsika mtengo ophatikizidwa.
Zosefera za SAW zomwe zili mkati mwake zimawonjezera chiŵerengero cha chonyamulira-ku-phokoso cha mkati mwa gulu kufika pa 60dB ndipo zimapereka chiŵerengero cha chizindikiro-ku-phokoso cha kanema pamwamba pa 55dB. Izi zimatsimikizira kutulutsa kwa kanema kolimba komanso kokhazikika popanda kugwedezeka kwa chinsalu, kusokoneza mitundu kapena phokoso losasunthika pa malo owonetsera a analog. Mlingo wosinthika wa RF output kuyambira 0 mpaka -20dB umasinthana ndi zingwe za coaxial zautali wosiyanasiyana, kuchotsa kufunikira kwa ma amplifier ena a chizindikiro pazochitika zazifupi komanso zapakati zotumizira mauthenga.
2. Kukhazikika kwa Mafakitale kwa Ntchito Yosayang'aniridwa Maola 24 pa Tsiku, Masiku 7 pa Tsiku, Masiku 7 pa Tsiku, Masiku 7 pa Tsiku, Masiku 7 pa Tsiku, Masiku 7 pa Tsiku, Masiku 7 pa Tsiku, Masiku 10 ...
Ma modulators ambiri odula mtengo amagwiritsa ntchito ma circuit amagetsi osavuta, omwe nthawi zambiri amachititsa kuti makina azisokonekera komanso kusinthasintha kwa ma frequency pambuyo pogwira ntchito kwa nthawi yayitali. Mavuto osakhazikika awa amasokoneza mwachindunji zomwe alendo aku hotelo amakumana nazo pa TV komanso ntchito zofalitsa nkhani zamaphunziro ku sukulu. Mosiyana ndi zimenezi, Softel imapatsa AH1916H ma module amphamvu amagetsi apamtunda omwe amathandizira mphamvu yamagetsi ya AC220V yokhazikika. Chida chilichonse chimayesedwa mosalekeza kwa maola 72 chisanatumizidwe ku fakitale kuti chitsimikizire kukhazikika kwa ntchito.
Chitsulo chonse cha aluminiyamu chili ndi mapangidwe abwino kwambiri ochotsera kutentha kuti ateteze kutentha kusonkhanitsa panthawi yogwira ntchito mosalekeza. Ndi kuchuluka kwa kusiyana komwe kumayendetsedwa pansi pa 5% ndi gawo losiyana mkati mwa 5°, chipangizochi chimasunga utoto wolondola komanso wokhazikika kuti ukhale ndi zinthu monga makanema olandirira alendo ku hotelo ndi makanema owonera akusukulu. Mphamvu yake yodalirika yogwirira ntchito maola 24 pa sabata imachepetsa kwambiri ntchito yokonza nthawi zonse ya magulu aukadaulo.
3. Kugwirizana Kwambiri ndi Kusintha kwa Machitidwe Osinthasintha
Monga ntchito yapamwamba kwambiriChosinthira chizindikiro cha HDMI kupita ku analog RFAH1916H ili ndi ma interfaces onse a HDMI omwe amagwirizana ndi zida zazikulu zamakanema, kuphatikiza ma seva azama TV, ma satellite receiver, ma surveillance NVR, ma smart TV box ndi ma Blu-ray player. Chiŵerengero chake chosinthika cha A/V kuyambira -10dB mpaka -30dB chimagwirizanitsa voliyumu yamawu m'magwero osiyanasiyana a ma signali, ndikuchotsa phokoso losagwirizana pakati pa ma TV channels.
Doko lodziwika bwino la 75Ω F-type RF limapereka kulumikizana mwachindunji ndi ma CATV combiners, ma trunk amplifier ndi ma network a coaxial omwe alipo kale, osafunikira ma adapter owonjezera osinthira. Pa mapulojekiti amalonda a hotelo, akatswiri amatha kupatsa ma channels apadera okhazikika a makanema otsatsa mahotelo, ma channel amasewera amoyo, kuwunika nthawi yeniyeni ndi mapulogalamu ankhani zakomweko popanda kukonza zolakwika pafupipafupi mutakhazikitsa.
4. Kapangidwe Kosungira Malo ndi Kukhazikitsa Kosavuta Pamalo
Yopangidwira zida zokhazikika za mainchesi 19 okhala ndi kutalika kwa 4RU, AH1916H imasunga malo ambiri m'makabati poyerekeza ndi kuphatikiza kwa modulator ya single-channel. Zizindikiro zonse za momwe njira imagwirira ntchito komanso zowongolera bwino zimayikidwa pakati pa gulu lakutsogolo. Akatswiri a m'munda amatha kusintha milingo yotulutsa njira ndi magawo amawu popanda kusokoneza chassis, zomwe zimathandizira kwambiri kukhazikitsa ndi kuyambitsa ntchito zama projekiti zaukadaulo.
Ntchito zosinthira ndi ntchito za OEM zilipo mokwanira. Softel imapereka kusindikiza kwa logo ya chassis, mapulogalamu apadera okhazikika a channel pre-programming ndi zowonjezera za RF combiner kuti zipereke mayankho athunthu a CATV headend, zomwe zimagwirizana ndi zosowa za ophatikiza dongosolo ndi otumiza zinthu zambiri padziko lonse lapansi.
Zochitika Zambiri Zogwiritsira Ntchito za AH1916H 16-in-1 Analog Modulator
1. Kukonzanso kwa TV ya Chipinda cha Alendo ku Hotelo ndi Resort
Chipangizochi chimagwira ntchito ngati chothandizaModule ya RF ya analog ya TV ya Hotel TVpa ntchito zokonzanso malo olandirira alendo. Mahotela ambiri apakatikati komanso achuma amakhala ndi mawaya oyambira a coaxial koma amafuna njira zamkati za TV zomwe zasinthidwa kuti ziwongolere zomwe alendo akukumana nazo. Mwa kulumikiza ma seva apakanema, zida zotsatsira makanema ndi ma feed owunikira malo olandirira alendo ku madoko 16 a HDMI a chipangizocho, gwero lililonse lodziyimira pawokha limafanana ndi njira ya TV yokhazikika. Alendo amatha kupeza mapulogalamu apadera mwachindunji kudzera pa ma TV wamba a analog, kupewa mtengo wokwera wokhazikitsa mabokosi a IPTV mchipinda chilichonse cha alendo.
2. Machitidwe Ofalitsira Mauthenga a Kampasi ndi Malo Ophunzitsira Antchito
Masukulu, mabungwe ophunzitsa ntchito, ndi malo ophunzitsira makampani nthawi zonse amafalitsa maphunziro ophunzitsa, zithunzi zachitetezo cha kusukulu, ndi mauthenga odziwitsa anthu pa TV m'kalasi.Chosinthira chogawa cha CCTV coax cha kusukulu, AH1916H imapereka ntchito yokhazikika kwa nthawi yayitali yoyenera ntchito zoulutsira nkhani za tsiku ndi tsiku nthawi yokhazikika. Kapangidwe kake ka nthawi yokhazikika kamalola aphunzitsi ndi oyang'anira kupeza mwachangu njira zophunzitsira ndi kuyang'anira popanda kusanthula pafupipafupi.
3. Kugawa Koyang'anira Konse kwa Zipatala, Mafakitale ndi Mabungwe
Malo ogona odwala, malo ogwirira ntchito m'mafakitale, ndi malo ogwirira ntchito otsekedwa amafunika kugawa kwa chizindikiro choyang'anira nthawi yeniyeni m'malo osiyanasiyana owonetsera. AH1916H imasintha kutulutsa kwa HDMI kwa njira zambiri kuchokera ku zida zojambulira za NVR kukhala zizindikiro za RF zokhazikika, kutumiza deta yowunikira kudzera m'maukonde omwe alipo kale a nyumba. Izi zimathandiza kuti pakhale mawonekedwe owunikira athunthu pamtengo wotsika, popanda kufunikira kukonzanso kwathunthu kwa netiweki ya IP.
4. Makina Ang'onoang'ono a Community ndi Apartment Complex CATV Headend Systems
Kwa madera okhala ndi ma sikelo ogwiritsa ntchito osakwana mabanja 100, ma multiplexer akuluakulu a QAM a digito nthawi zambiri safunikira komanso sawononga ndalama zambiri. AH1916H imaphatikiza zizindikiro za TV zamoyo zakomweko, makanema odziwitsa za malo ndi chakudya chachitetezo cha anthu ammudzi mu mzere umodzi wa coaxial trunk. Imapereka ntchito zokhazikika zogawa ma TV a analog ndi ndalama zochepa zoyambira, zomwe zimagwirizana bwino ndi zosowa za madera ang'onoang'ono okhala.
Chifukwa Chake Sankhani Softel AH1916H M'malo mwa Ma Modulator Anthawi Zonse a Multi-Channel
Kampaniyo, yomwe idakhazikitsidwa mu 2005, ya Hangzhou Softel Optic, ili ndi zaka zoposa 16 zaukadaulo wa R&D komanso luso lopanga zida zotumizira ma HFC za CATV. Kampaniyo ili ndi malo ochitira masewera olimbitsa thupi odziyimira pawokha komanso makina owunikira bwino omwe amayendetsedwa bwino. Chigawo chilichonse cha iziZida zosinthira ma analog za Softel CATVimayesedwa mwamphamvu kuti iwonetse kukhazikika kwa chizindikiro, kukana kutentha komanso kugwirizana ndi zinthu zisanaperekedwe. Zogulitsa zonse zili ndi satifiketi ya CE, zomwe zimathandiza kutumiza kunja ndi kugwiritsa ntchito bwino ku Southeast Asia, Latin America, Eastern Europe ndi misika ina yapadziko lonse lapansi.
Ma modulators ambiri otsika mtengo a analog omwe ali pamsika amachepetsa ndalama zopangira pochotsa ma module odziyimira pawokha otseka ma frequency. Izi zimapangitsa kuti ma frequency asunthe mosavuta komanso kusakhazikika kwa ma signal pambuyo pa miyezi 3 mpaka 6 yogwiritsidwa ntchito mwalamulo, zomwe zimafuna kukonza ndi kukonza zolakwika pafupipafupi pamalopo. Poyerekeza, AH1916H imagwiritsa ntchito ma chips odziyimira pawokha a MCU frequency control pa channel iliyonse, ndi moyo wothandiza wa zaka zoposa 8 pansi pa mikhalidwe yabwinobwino yogwirira ntchito. Imachepetsa bwino ndalama zosamalira pambuyo pogulitsa kwa mainjiniya.
Kupatula zinthu zodziyimira pawokha, Softel imapereka zida zothandizira zosiyanasiyana kuphatikizapo zophatikiza za RF, zotumizira zamagetsi za EDFA zamphamvu kwambiri komanso ma terminal a FTTH ONT. Dongosolo lonse lothandizira limapanga yankho la CATV lokhazikika lomwe limakhala ndi mutu umodzi, kuthandiza makasitomala apadziko lonse kupewa kulephera kogwirizana ndi chizindikiro chifukwa cha kufananiza zida zosiyanasiyana.
Mapeto
Pamene makampani opanga makanema apa TV padziko lonse lapansi akusintha pang'onopang'ono kuchokera ku analog kupita ku digito, ma modulators a HDMI analog a ma frequency ambiri amakhalabe zida zofunika kwambiri pa malo ang'onoang'ono ndi apakatikati omwe amakhudzidwa ndi mtengo. AH1916H 16-in-1 HDMI Input Analog Fixed Channel Modulator imagwirizana bwino pakati pa magwiridwe antchito okhazikika a chizindikiro, kudalirika kwa ntchito kwa nthawi yayitali komanso kuwongolera mtengo wa polojekiti, ndikuthetsa bwino vuto logwirizana ndi chizindikiro pakati pa magwero amakono a HDMI high-definition ndi ma network achikhalidwe a coaxial analog TV.
Kaya ndinu katswiri wophatikiza ma CATV system, kontrakitala wa mahotela, wogula zida zowonera ndi mawu ku sukulu kapena wotumiza zida zolumikizirana ndi kuwala, chipangizochi chosinthira zinthu zonse pamodzi chimapereka njira yosinthira ma signal a analog yokhwima, yosakonza kwambiri komanso yotsika mtengo. Musazengereze kulumikizana ndi Hangzhou Softel Optic kuti mupeze ma datasheet aukadaulo atsatanetsatane, mautumiki okonzedweratu a ma frequency ndi mitengo yopikisana ya AH1916H modulator.
Nthawi yotumizira: Ogasiti-03-2026