"Nquag Das" yog hais txog cov kav hlau kav hlau txais xov. Qhov thev naus laus zis no txhim kho kev pab them nqi wireless wireless thiab network muaj peev xwm. Nov yog qee qhov tseem ceeb ntawm cov ntsiab lus DAS:
Faib cov kav hlau hluav taws xob (DAS) Nws chaw nyob cov seem ntawm cov tuam txhab loj, chaw ntau pob, subway tunnels, thiab lwm yam ntawm lub kav hlau kav hlau hluav taws xob (das),Thov Nyem Ntawm No.
Nquag Das rau lub tsev lag luam
1.Txawm ntawm cov nquag thiab passive Das:
Nquag Das: Siv cov khoom siv nthuav dav los txhawb cov paib, muab cov peev txheej zoo dua thiab cov kev pab cuam kis tau zoo thaum lub sijhawm ntsuas kev sib kis. Cov kab ke no muab cov khoom siv tau siab dua thiab kev yoog tau zoo, muaj txiaj ntsig lub tsev qauv qauv loj.
Passive Das: tsis siv cov lus tshaj tawm; Kev xa mus kis rau cov kev sib tw ntawm cov kev sib tw xws li feeders, couplers, thiab splitters. Passive Das yog tsim nyog rau me dua rau cov chaw nyob nruab nrab-qhov me me, xws li cov tuam tsev ua haujlwm lossis cov lag luam cov khoom lag luam me.
Nquag muab cov kav hlau yuam kev (DAS) txhim kho cov teeb meem hluav taws xob uas muaj hluav taws xob ua kom nrov dua thiab faib cov cim thoob plaws lub tsev lossis thaj chaw. Ntawm no yog li cas nws ua haujlwm:
Passive Das
Nquag muab cov kav hlau yuam kev (DAS) txhim kho cov teeb meem hluav taws xob uas muaj hluav taws xob ua kom nrov dua thiab faib cov cim thoob plaws lub tsev lossis thaj chaw. Ntawm no yog li cas nws ua haujlwm:
Nquag muab cov kav hlau txais xov hluav taws xob (DAS)
Cheebtsam
1. Lub taub hau chav tsev:
- Cov chaw nres tsheb hauv paus pib: txuas rau lub chaw pabcuam wireless lub chaw nres tsheb hauv paus.
- Teeb xwm hloov dua siab tshiab: hloov lub teeb liab RF los ntawm cov chaw nres tsheb hauv paus rau kev sib kis kho kho qhov muag rau kev sib kis tau siv hluav taws xob.
Taub hau-kawg thiab chaw taws teeb
2. Fiber ntau cables:
- Hloov cov teeb liab kho qhov muag los ntawm lub taub hau kawg ntawm lub taub hau chav nyob rau hauv cov chaw taws teeb nyob thoob plaws hauv cheeb tsam pov hwm.
Fiber ntau Optic Receater (DAS)
3. Chaw taws teeb ua ke:
- Kho dua tshiab rau RF hloov dua siab tshiab: hloov cov teeb liab kho qhov muag rov qab rau hauv RF teeb liab.
-Fiber ntau Optic Receater: Txhawb lub teeb liab RF lub teeb zog rau kev pab them nqi.
- Antennas: faib cov teeb liab rf rau qhov kawg ntawm cov neeg siv.
4. Antennas:
- Muab tso rau hauv lub tsev lossis thaj chaw kom ntseeg tau tias muaj kev faib cov kev xa tawm lub teeb liab.
Cov txheej txheem ua haujlwm
1. Cov paib txais tos:
- Chav tsev xaus-kawg tau txais lub teeb liab RF los ntawm cov neeg muab kev pabcuam's puag.
2. Cov teeb liab hloov dua siab tshiab thiab kis:
- Lub teeb liab RF hloov dua siab tshiab rau hauv lub teeb liab kho qhov muag thiab xa khoom ntawm cov khoom siv fiber ntau rau cov chaw taws teeb.
3. Cov paib amplification thiab faib:
- Cov chaw taws teeb cov chaw taws teeb hloov kho lub teeb liab rov qab rau hauv RF teeb liab, ua kom nrov nrov nws, thiab faib nws los ntawm cov kav hlau txais xov.
4. Cov Neeg Siv Txuas:
- Cov neeg siv khoom siv khoom siv txuas rau tus kav hlau txais xov, tau txais lub teeb liab muaj zog thiab meej.
Cov txiaj ntsig
- Txhim kho cov kev fajseeb khomob: Muab cov paib ntsuas hluavtaws nruj thiab muaj zog rau cov cheeb tsam uas ib txwm txawb cov neeg yees yuav tsis ncav cuag kom zoo.
- Txhim Kho Muaj Peev Xwm: Txhawb cov neeg siv siab thiab cov khoom siv los ntawm kev faib cov thauj khoom thoob plaws tus kav hlau txais xov.
- Kev hloov pauv tau thiab thev naus laus zis tau yooj yim lossis rov qab ua kom tau raws li kev hloov pauv kev pab them.
- Txo kev cuam tshuam nrog kev siv ntau tus kav hlau txais xov hluav taws xob, nws txo qhov cuam tshuam nrog ib tus kav hlau txais xov muaj zog.
Siv cov ntaub ntawv(Lasratek cov phiaj xwm)
- Cov Vajlig Loj: Chaw ua haujlwm vaj tse, tsev kho mob, thiab tsev so uas cov teeb meem ntawm tes sab nraud yuav tsis nkag siab zoo.
- Cov pej xeem venages: chaw ua haujlwm, chaw dav dav, thiab cov chaw dav dav uas qhov chaw siab tshaj ntawm cov neeg siv xav tau cov paib hluavtaws ruaj.
- Cov chaw hauv nroog: Cov chaw hauv nroog muaj sia nyob qhov twg thiab lwm cov qauv yuav thaiv cov paib ntawm lub cev.
Chaw nres tsheb hauv av ntau(DAS)
Nquag Das ua haujlwm los ntawm kev siv cov kev sib txuas ntawm kho qhov muag thiab faib cov cim wireless zoo, muab cov chaw txhim khu kev qha wireless zoo, muab cov peev txheej txhim khu kev qha thiab muaj peev xwm hauv cov chaw ua haujlwm ntau.
Lintratek Lub Taub Hau Chav Haujlwm
Las sabtau yog lub chaw tsim khoom lag luam ntawm DAS (Faib Kav hlau txais xov) Nrog cov cuab yeej siv hluav taws xob R & D, ntau lawm, thiab kev muag khoom rau 12 xyoos. Cov teeb liab kev pov hwm cov khoom hauv thaj chaw sib txuas lus hauv xov tooj: xov tooj ntawm tes cim boosters, kav hlau txais xov, tiv thaiv hwj huam, thiab lwm yam.
Lub Sijhawm Post: Jul-17-2024