FMUSER Imwe-Frequency Network Yakazara SFN Network Solution

FM Single-Frequency Network (SFN Network) idhijitari yekutepfenyura inoshandisa akawanda maredhiyo achishanda pamwe chete kutepfenyura chiratidzo chimwe chete panguva imwe chete paredhiyo frequency. Iyi sisitimu inobatsira kukwidziridza kutambirwa kweredhiyo nekushandisa akati wandei ekutumira kutumira chiratidzo chimwe chete pane imwe chete. Iwo masaini anowiriraniswa kune mumwe nemumwe kuti ape yakasimba, yakavimbika chiratidzo pamagumo eanogamuchira. Iyi sisitimu inobatsirawo mukuderedza kupindira kubva kune dzimwe nhepfenyuro uye nekupa kufukidzwa kuri nani munzvimbo dzakaoma kusvika.

Zadzisa FM Imwe-Frequency Network (SFN Network) Solution kubva kuFMUSER

Mhinduro yedu inogona kutsanangurwa se "networked" purojekiti, iyo ine matatu network, anoti:

• FM Single Frequency Network (FM SFN Network)
• Audio Sync Transmission Network
• Remote Monitoring uye Management Network.

Idzi mhinduro dzinogona kungoiswa nenzira inoshanda, uye dzinogona kuwiriranisa zvisina mutsetse masaini eredhiyo eFM mukuvhara kwakakura nemichina inotevera:

1. SFN FM Transmitter
2. Batanidza Audio Encoder
3. Sync Audio Decoder
4. GPS Standard Frequency Generator
5. Digital Standard Frequency Generator
6. Sync Digital Audio Satellite Receiver
7. GPS antenna (GNSS)
8. Data Telemetry Controller yeFM Transmitters
9. Yakazara Management System (Software)

FMUSER SFN Network Solutions Inotsanangurwa

Kuti ive yakanakisa mhando yeSFN network kuvaka, heano mamwe makiyi aunofanira kurangarira:

• Kugadzirisa Iyo Inoshanda Radiated Simba (EPR) yeSFN transmitters yega yega chiteshi, gara ichichengeta iri pasi pe20% kuenda kuERP yeSFN huru transmitter.
• Kuchengetedza kugadzikana kwekunonoka mutsauko weiyo audio transmission chiteshi.
• Kuchengetedza kugadzikana uye kurongeka kwakanyanya kweGPS.
• Kutora yepamusoro-mhando FSN transmitter

Heano mana makuru mhinduro kubva kuFMUSER:

Yakanyanya Nyanzvi: Satellite-yakavakirwa FM SFN Network Solution

Mhinduro iyi yakanakira kutepfenyura kwekondinendi kana dunhu. Nekudaro, kutanga nemhinduro iyi, satellite transmitter inodiwa pachiteshi chekutepfenyura, kana masaini masaini anogona kusaendeswa kune mutiple sync ekutepfenyura masaiti.

Sarudzo yeMukundi: Cable-based FM SFN Network Solution

Mhinduro iyi yakanakira kutepfenyura kwedunhu kana dhorobha. Inoshanda nekutumira masaini masaini anowiriraniswa-encoded kune tambo yeTV kumberi kwekupedzisira nerubatsiro rwehybrid fiber-coaxial (HFC) network inovakwa nehurumende yemuno, yobva yaendeswa nesync-decoder yevashandisi vekupedzisira, masaini masaini. inozopedzisira yaendeswa kune akawanda transmitters pane sync base station. Nekushandisa iyo iripo HFC network yeSFN network kuvaka, vatepfenyuri vanokwanisa kuchengetedza zvakanyanya mari yavo.

Win-Win Sarudzo: Fiber-yakavakirwa FM SFN Network Solution

Mhinduro iyi ine mukurumbira Synchronous Digital Hierarchy (SDH), uye yakanakira mutengo-kuita. Iine mabhenefiti ehupamhi hwekufambisa bandwidth, vhoriyamu yekufambisa yakakura, kureba kwekutapurirana chinhambwe, uye isingatambudzike nekukanganiswa kwemagetsi, iyo fiber-based solution inobvumira nhepfenyuro kuendesa masaini ekuteerera kune akawanda ma transmitter pane sync base zviteshi kuburikidza neiyo iripo SDH network. .

Classic Sarudzo: Microwave-yakavakirwa FM SFN Network Solution

Mumatunhu akasiyana pasirese, kune akasiyana siyana echisikigo mamiriro uye magariro zvinhu (sehupfumi, huwandu hwevanhu, nezvimwewo) izvo zvinogona kuderedza hunhu hwekutepfenyura, uye ndosaka microwave yakakosha, nekushandisa microwave transmission, hapana chikonzero tambo dzekuwedzera, fiber-optics, kana satellite. Microwave transmission inoonekwa seyakanyanya kushanduka, yakaderera mutengo, uye yakanakira mhinduro, Naizvozvo, kana ichienzaniswa neyekutanga mhinduro nhatu, iyo microwave-based SFN network solution ndiyo inonyanya kuchinjika, uye kushandiswa kwema microwave kuumba Digital Synchronous Network (SDH). ) zvakaonekwa kuti zvine basa guru mukutepfenyura munzvimbo dzakawanda.

Ndezvipi zvakanakira uye zvinokanganisa zveFM Single-Frequency Network (SFN Network)?

Zvakanakira zveFM SFN Network (imwe-frequency network) ndeiyi:

• Kuvharidzirwa kwakavandudzwa: Manetiweki eSFN anopa kuvharika kwakavandudzwa nekuda kwemasaini ari kutepfenyurwa kubva kunzvimbo dzakawanda, achipa chiratidzo chakasimba kupfuura chakajairika single-frequency network.
• Mari yekuchengetedza: SFN network inowanzo kudhura kuisa nekuchengetedza kupfuura mamwe marudzi etiweki.
• Kugadzirisa kwakareruka: SFN network iri nyore kuchengetedza nekuda kweiyo centralized control yetiweki.

payakaipira yeFM SFN Network (imwe-frequency network) ndeiyi:

• Kupindira: SFN network inogona kutarisana nekukanganiswa kubva kune mamwe masaini uye masisitimu, zvichikonzera hurombo husina kunaka hwechiratidzo uye kuderedzwa kwekuvhara.
• Complex setup: SFN network inoda huwandu hukuru hwehunyanzvi uye ruzivo rwehunyanzvi kumisikidza nekuchengetedza, zvichiita kuti zvive zvakaoma kuisa nekugadzirisa.
• Yakaganhurirwa renji: SFN network inogumira muhuwandu hwayo nekuda kwekuvimba neakawanda transmitters.

Ndeapi mashandisirwo eFM Single-Frequency Network (SFN Network)?

FM Single-Frequency Network (SFN Network) ndeyekutepfenyura network dhizaini inoshandisa imwechete frequency kuendesa akawanda masaini masaini kunzvimbo imwechete yenzvimbo. Iyi mhando yetiweki ine maapplication muredhiyo neterevhizheni kutepfenyura, nharembozha, masevhisi ekuchengetedza veruzhinji, nezvimwe. SFN Networks inovimbika zvakanyanya, inopa mhando yepamusoro yekuteerera uye vhidhiyo kufukidzwa, uye inodhura-inoshanda kupfuura dzimwe nzira dzekutepfenyura. Pamusoro pezvo, ivo vanogonesa kufukidzwa kwakafara nema transmitters mashoma, ukuwo vachipa zvakanakira senge kuvandudzwa kwekukanganisa kusadzivirirwa uye kuderedzwa kwesimba rekushandisa.

Nei FM Imwe-Frequency Network (SFN Network) yakakosha?

FM Single-Frequency Network (SFN Network) yakakosha nekuti inopa nzira inodhura yekuvhara nzvimbo dzakakura nechiratidzo chimwe chete. Iyo zvakare inovandudza kunaka kwekuvhara kwenhepfenyuro yeFM, kuve nechokwadi chekuteerera kunoenderana. Pamusoro pezvo, SFN Networks inobatsira kudzikisira kupindira pakati pezviratidziro zvakawandisa, zvichitungamira kumhando yepamusoro yeruzha uye kushomeka kwekukanganisa.

Maitiro ekuita nhanho-nhanho kuvaka yakakwana FM Imwe-Frequency Network (SFN Network) yeFM nhepfenyuro?

1. Sarudza pamusoro pekugadzirisa kweSFN network - izvi zvinosanganisira nhamba yevashambadziri, nzvimbo dzavo, uye maitiro avo ekutumira.
2. Tora marezinesi anodiwa evanotumira uye gadzirisa imwe neimwe transmitter ine maparamendi akakodzera.
3. Isa ma transmitters munzvimbo dzakakodzera uye ona kuti antennas akagadzirwa zvakanaka.
4. Batanidza ma transmitter kune yepakati transmitter kuti ugadzire network yema transmitters.
5. Batanidza ma transmitters kuti uone kuti ari kutepfenyura chiratidzo chimwe chete panguva imwe chete.
6. Edza network yeSFN kuti uone kuti iri kushanda nemazvo.
7. Tarisa iyo SFN network kuti uone kuti iri kufamba zvakanaka.
8. Ita zvigadziriso kune network sezvinodiwa kuti uwedzere kuita kwayo.

Ndeipi michina ine yakazara FM Single-Frequency Network (SFN Network)?

Iyo yakazara FM Single-Frequency Network (SFN Network) ine inotapurirana, inogamuchira, uye inetiweki controller. Iyo transmitter inotumira chiratidzo pane imwechete frequency, iyo inogamuchirwa nevose vanogamuchira. Mutariri wetiweki anobva afananidza vanogamuchira, kuitira kuti vese vagamuchire chiratidzo chakafanana panguva imwe chete. Izvi zvinova nechokwadi chekuti odhiyo inonzwika kamwechete, pane kunonoka kana kusaenderana. Iyo SFN Network inobvumirawo zvirinani kuvharwa kwechiratidzo, sezvo chiratidzo ichikwanisa kusvika kune nzvimbo yakakura kupfuura neakawanda mafrequency.

Nzira yekusarudza yakanakisa FM Single-Frequency Network (SFN Network)?

Pakusarudza yakanakisa FM Single-Frequency Network (SFN Network) yekutepfenyura nhepfenyuro yeFM, zvakakosha kuti titarise izvo chaizvo zvinodiwa nenhepfenyuro, senge nharaunda ichavharwa, simba rechiratidzo rinodiwa, bhajeti iripo, uye technical zvinodiwa zve network. Pamusoro pezvo, zvakakosha kutsvagisa ruzivo rwevatengi vekare kuti ive nechokwadi chekuti yakasarudzwa SFN Network inosangana nezvinotarisirwa nenhepfenyuro. Chekupedzisira, zvakakosha kubvunzana nenyanzvi ine ruzivo kuti uwane zano pamusoro peiyo yakanakisa SFN Network kune zvimwe zvinodiwa nenhepfenyuro.

Maitiro ekuchengetedza nemazvo FM Imwe-Frequency Network (SFN Network)?

Seinjiniya, unofanirwa kuve nechokwadi chekuti iyo FM Single-Frequency Network (SFN Network) inogara ichitariswa uye inochengetwa zvinoenderana nemirairo yemugadziri. Izvi zvinosanganisira kugara uchitarisa kurongeka kweantenna, kuongorora mazinga emagetsi ekutapurirana, uye kuve nechokwadi chekuti zvikamu zvese zviri kushanda nemazvo. Pamusoro pezvo, iwe unofanirwa kuve nechokwadi chekuti network inogara ichitariswa kuti inogona kukanganisa, uye tora matanho ekudzikamisa chero kukanganisa kunoonekwa. Chekupedzisira, iwe unofanirwa kuve nechokwadi chekuti chero shanduko dzakaitwa kuSFN Network dzakanyorwa uye kugovaniswa nevamwe mainjiniya vanogona kuve nebasa rekugadzirisa kwayo.

Maitiro ekugadzirisa FM Imwe-Frequency Network (SFN Network) kana ikatadza kushanda?

Kana FM SFN Network ikatadza kushanda, danho rekutanga nderekutarisa zvese zvinongedzo kunetiweki kuti uone kuti tambo dzese dzakabatana nemazvo. Kana kubatanidza kwakanaka, danho rinotevera nderokutarisa zvikamu zvehurdware zvetiweki, senge antenna, magetsi, uye amplifiers, kuve nechokwadi kuti zviri kushanda nemazvo. Kana zvikamu zvehardware zviri kushanda nemazvo, danho rinotevera nderekutarisa zvikamu zvesoftware zvetiweki, senge encoder uye modulator, kuti ive nechokwadi chekuti dzakagadzirirwa zvakanaka. Kana zvikamu zvepurogiramu zvisina kunyatsogadziriswa, zvakakosha kutevera mirairo yemugadziri kuti ugadzirise zvirongwa. Zvichienderana nedambudziko, zvingave zvakakosha kugadzirisa firmware kana software kune yazvino vhezheni. Kana zvese zvinongedzo uye zvikamu zvaongororwa uye kushanda nemazvo, danho rekupedzisira nderekuyedza network kuti uone kuti iri kushanda sezvaitarisirwa.

Maitiro ekusarudza iyo Base Station yeSFN network?

• Kufunga nezveTraffic: Ita shuwa kuti zviteshi zvakasarudzwa zvinokwanisa kuvhara migwagwa yakatenderedza yepamusoro-giredhi.
• Tichifunga nezvehuwandu hwehuwandu hwevanhu: Funga nezvesarudzo dzinobvumira kuvharwa kwenzvimbo dzine vanhu vakawanda semaguta kana madhorobha.
• Kufunga nezvekuwedzera: Wedzera nzvimbo dzekuvharira mumaguta makuru ane zvivakwa zvirefu zvakakomberedzwa.
• Tichifunga nezveAntenna Height: Chengetedza chinhambwe pakati pezviteshi zvepasi mukati me31 mamaira kana chiteshi antenna kureba yakamiswa panzvimbo yakaderera; Chengetedza chinhambwe pakati pezviteshi zvepasi mukati me62 mamaira kana chiteshi antenna kureba yakamiswa panzvimbo yakakwirira.

Nzira yekugadzira Yakazara SFN Network?

1. Kuronga saiti ongororo uye gadzirira mhinduro
2. Kusarudza midziyo yakakodzera uye huwandu
3. Kuisa nzvimbo yepakati yakabatana (AKA: iyo nzvimbo yekuvhara yakavharika) ye base station nekuyedza simba remunda.

Pamusoro pezvo, kugadziridzwa kwekunonoka kwenguva yekuenzanisa kune yakanakisa sync state pakati penzvimbo yakabatana ichazadzisa zvinotevera zvinodiwa:

• HAPANA kurova ruzha rweiyo yakafanana frequency munzvimbo yakabatana (yekutarisa kana pasina odhiyo chiratidzo)
• HAPANA mutsauko wakajeka wemodulation wakatorwa ruzha munzvimbo yakabatana (izwi rakajeka uye mimhanzi inonakidza)
• HAPANA mutsauko wakasarudzika wechikamu munzvimbo yekubatana (ruzha rwekumashure)
• Iyo subjective kuongororwa kweiyo system synchronization athari inosvika kupfuura 4 mapoinzi (kunze kwenzvimbo ine shaded)

Ndezvipi zvinodiwa zvehunyanzvi zveFM SFN Network?

Kuti utepfenyure zvisina mutsetse neSFN Network, nyaya dzekuvhiringidza munzvimbo yakabatana dzinofanirwa kugadziriswa kamwe chete uye zvachose, uye hezvino zvinhu zvina zvakakosha zvinoda kutariswa zvakanyanya, zvinoti:

Guarantee Yakakwana Munda Simba

Zvinodiwa kuti kune kuvharika kwakakwana kwesimba remumunda munzvimbo dzese dzebasa rekutumira muhurongwa.

Co-Frequency

MuFM synchronous nhepfenyuro system, mutsauko wefrequency pakati pemutakuri uye frequency yekutyaira pakati peapi maviri ari padyo transmitters ari pasi pe1 × 10-9, kugadzikana kwereferensi frequency sosi yechiteshi chimwe nechimwe ≤5 × 10-9/24 maawa.

In-phase

Mune FM inopindirana nhepfenyuro system, panzvimbo imwechete yereferensi munzvimbo yekubatana, mutsauko wenguva pakati pemasaini akagadziridzwa anofambiswa nechero maviri ari padhuze transmitters:

• Mono kutepfenyura ≤ 10μS
• nhepfenyuro yestereo ≤ 5μS.

Mune FM inopindirana kutepfenyura system, chikamu chekunonoka kugadzikana kweiyo modulated siginecha yemumwe neumwe anotepfenyura:

• Zvirinani pane ±1μS (1KHZ, yakanyanya frequency kutsauka: ± 75KHZ, maawa makumi maviri nemana).

Co-Modulation

• MuFM synchronous kutepfenyura system, iyo modulation dhigirii kukanganisa kwechero maviri ari padyo transmitters ndeye ≤3%
• MuFM synchronous kutepfenyura sisitimu, mutepfenyura wega wega unodiwa kuti ugadzirise kugadzikana ≤2.5% (1KHZ, yakanyanya frequency kutsauka: ± 75KHZ, maawa makumi maviri nemana).