Thenga Isipikha Esivikela Isimo Sezulu Ku-inthanethi Semiklamo Yesistimu Yesipikha Sangaphandle Se-PA

• Izipikha ze-horn zangaphandle zikhethwa ukuze zisetshenziswe ekuqondiseni izwi, hhayi ukuze zidlale umculo osezingeni eliphezulu.
• Ukusebenza okumelana nesimo sezulu kuncike ekulinganisweni kokuvalwa, ukuvalwa, ukumelana ne-UV, ukuqina kwenkungu kasawoti, kanye nokuqina kokuyifaka.
• Impumelelo yephrojekthi incike ekufaniseni i-engeli yokumboza, izinga lokucindezela komsindo, kanye nomklamo we-voltage yomugqa nendawo yendawo.
• Uma kusetshenziswa ama-paging ezimboni, kufanele kukhethwe isipikha esimelana nesimo sezulu kanye ne-topology ye-PA, umzila wekhebula, kanye nohlelo lokulungisa.

Ukuthenga isipikha esingangenisi simo sezulu sephrojekthi yesistimu ye-PA yesipikha esisebenza ngaphandle kusho ukulinganisela ukufinyelela kwe-acoustic, ukuqina, kanye nokuhambisana. Ngokufakwa kwangaphandle, ukuvikelwa kokungena kuvame ukucaciswa ku-IP66 noma ku-IP67 ngaphansi kwe-I-IEC 60529uhlaka, kuyilapho ukuhlolwa kokuchayeka ngaphandle kuvame ukubhekisela emisebeni yelanga, umswakama, kanye nokumelana nenkungu kasawoti ezindinganisweni ezifanaI-ASTM B117ukuze kutholakale ukuchayeka kusawoti kanyeAmayunithi e-NIST SIngolimi lokulinganisa oluhambisanayo. Ekwakhiweni okuvamile kwe-PA yezimboni, uhlelo lwemigqa engu-70V noma engu-100V lukhethwa kakhulu ekusabalalisweni kwezikhulumi eziningi ngoba lunciphisa ukwehla kwamandla kagesi akude futhi lwenza kube lula ukuhlela umthwalo. Uma iphrojekthi yakho ihlanganisa izindawo zokulayisha, izindawo zokupaka, izindawo zokugcina impahla, noma izindawo ezizungezile, umbuzo wangempela awukhona ukuthi isipikha singakwazi yini ukwenza umsindo, kodwa ukuthi singahlala sizwakala yini ngemva kwemvula, uthuli, ukudlidliza, kanye neminyaka yokuchayeka ku-UV.

Lokho okumelwe kwenziwe yisikhulumi esingangenisi manzi ohlelweni lwe-PA lwesipikha sangaphandle esisebenza ngophondo

Isipikha esimelana nesimo sezulu kumele siphile endaweni ezungezile kuqala bese sinikeza izwi elizwakalayo okwesibili.

Kumaphrojekthi esistimu ye-PA yesipikha se-horn yangaphandle, isici se-horn form sibalulekile ngoba sigxilisa amandla e-acoustic abe yiphethini elincane. Lokho kwenza kube lula ukumboza izindlela zokuhamba, amayadi, amasango asegcekeni, imingcele yezitshalo, kanye nezinye izindawo ezivulekile lapho isipikha esivamile sisakazeka khona kakhulu. Umehluko ukuthi izipikha ze-horn zivame ukulungiswa ukuze zikhiqizwe kabusha ibhendi yenkulumo kunokuthembeka komculo ogcwele. Ngokusebenzisa ama-paging, ama-alamu, imiyalelo ephuthumayo, kanye nezimemezelo zokushintsha ama-shift, lokho ngokuvamile kuyinzuzo kunokuba kube umkhawulo.

Kumaphrojekthi amaningi angaphandle, imibuzo efanele yokusebenza yile: umlayezo udlula kude kangakanani, ukuthi kungakanani ukuzwakala okugcinwe emoyeni nomsindo, nokuthi ngabe indawo ebiyelwe iyasinda yini emijikelezweni yesimo sezulu ngaphandle kokuqhekeka noma ukuvuza. Ngakho-ke, isipikha esimelana nesimo sezulu esisetshenziswa ohlelweni lwe-PA kufanele sihlolwe njengengxenye yendlela ephelele yokuxhumana, hhayi njengebhokisi elizimele.

Imininingwane yesipikha engangenisi isimo sezulu ebaluleke kakhulu

Ishidi lokucacisa elingcono kakhulu yilelo elihambisana nezimo zasensimini, hhayi ulimi lokumaketha.

Uma uqhathanisa imikhiqizo, beka phambili amapharamitha alinganiswayo. Isilinganiso esivamile sobungcweti ukuvikelwa kokufakwa kwe-IP66 noma i-IP67, okubonisa ukwakhiwa okungenathuli kanye nokumelana okunamandla namajethi amanzi noma ukucwiliswa kwesikhashana kuye ngesilinganiso esiqondile. E-US nasezinkambisweni eziningi zokuthengwa kwezimboni, leso silinganiso sivame ukufundwa kanye nekhwalithi yehadiwe yokufaka, ukwakheka kwe-gasket, kanye nokuvikelwa kokungena kwekhebula. Ngomklamo we-acoustic, izikhulumi ze-horn zivame ukukalwa ngezinketho zokuthinta ngamandla njenge-5 W, 10 W, 15 W, 20 W, noma ngaphezulu emigqeni ye-70V/100V, okuvumela abaklami besistimu ukubala ibhalansi yomthwalo ophelele kanye nokumbozwa.

Ukusetshenziswa kwangaphandle, izinto ezivalekile nazo zibalulekile. Izindlu zensimbi eziqiniswe yi-UV ABS, i-aluminium, noma ezimbozwe ngempuphu zivamile. Izindawo ezinomoya kasawoti zidinga ukumelana nokugqwala okunamandla kunamagceke angaphakathi nezwe. Iphrojekthi eseduze nogu ingadlula ukuhlolwa kwe-acoustic yesikhashana kodwa ihluleke ngemva kokugqwala kwesizini uma izibambo, amabhuleki, noma izivalo kungacaciswanga kahle.

Indlela yokukhetha isipikha esingamelani nesimo sezulu ukuze simboze uhlelo lwe-PA lwesipikha sangaphandle

Ukuhlela ukumbozwa kubaluleke kakhulu kunokuthenga isipikha esikhulu kunazo zonke ongasithola.

Iphutha eliyinhloko kumaphrojekthi e-PA angaphandle ukulinganisa amandla aphezulu nemiphumela engcono. Empeleni, ukuqondakala kuncike ebangeni, umsindo wangemuva, iphethini ye-horn, ukuphakama kokukhweza, kanye nenani lezindawo zokulalela. Indawo yokupaka ingadinga ama-horn amaningana amancane kuneyunithi eyodwa enkulu kakhulu. Umngcele wendawo yokugcina impahla ungadinga izikhulumi eziqondiswe ngokucophelela ukuze kugwenywe ukuchitheka komsindo ezindaweni eziseduze. I-loading dock, ngokuphambene, ingazuza e-horn enkulu ene-angle eqinile ye-beam.

Ngokusebenzisa i-voice paging, umgomo wokuklama osebenzayo ukugcina inkulumo etholiwe okungenani i-10 dB ngaphezu komsindo ozungezile noma nini lapho kungenzeka. Ezindaweni zezimboni ezinomsindo, lowo mkhawulo ungadinga ukuba phezulu. Yingakho kufanele kukhethwe isikhulumi esimelana nesimo sezulu kucatshangelwa iphrofayili yomsindo wendawo. Izikhulumi ze-Horn zingasebenza kahle kakhulu ngoba zigxila amandla lapho abantu bemi khona, okuthuthukisa ukucaca kwenkulumo ngaphandle kokwandisa amandla esistimu ngokuphelele.

Amaqembu amaningi ephrojekthi nawo aqhathanisaimikhiqizo yokuxhumana yezimboningokwesimo sabo sokufaka kunokuba ngegama lomkhiqizo kuphela. Leyo ndlela iwusizo kakhulu ngoba isipikha esifanayo esivikela isimo sezulu singasebenza ngendlela ehlukile odongeni, epalini, ebhulokini lophahla, noma engalweni ye-gantry. Uma iphrojekthi ifaka isaziso esiphuthumayo, kuwukuhlakanipha futhi ukubuyekeza okuhlobene.Izixazululo zesistimu ye-PAfuthi kufakwe ekhanda le-amplifier, ukuqapha umugqa, kanye nokufinyelela ekunakekelweni kusukela ekuqaleni.

Kungani izipikha ze-horn zangaphandle zisebenza kangcono kunezipikha ezivamile ezindaweni ezinzima

Izipikha ze-Horn zivame ukuwina ngaphandle ngoba zithuthukisa ukusebenza kahle kwe-acoustic lapho kubaluleke kakhulu khona.

Ikhabhinethi yesipikha esivamile isakaza umsindo kabanzi, okuwusizo ngaphakathi endlini kodwa okungasebenzi kahle ezindaweni ezivulekile. Isipikha esinophondo sicindezela ukuphuma kwe-acoustic kube iphethini elawulwayo, okwandisa umsindo obonakalayo ohlangothini oluhlosiwe. Lokhu kubaluleke kakhulu ekubukeni kwangaphandle lapho umoya, ithrafikhi, imishini, kanye namabanga amade kunciphisa ukucaca kwenkulumo.

Ekusetshenzisweni kwezimboni, isikhulumi esingangenisi isimo sezulu sivame ukukhethwa ukuze sikhulunywe ngezwi kuqala. Lokho kusho ukuthi impendulo yemvamisa ingakhiwa ngamabomu yebhendi yenkulumo, ngokuvamile phakathi nendawo lapho kuhlala khona ukuqondana kongwaqa. Lesi esinye sezizathu ezenza izikhulumi ze-horn zivame ukukhulunywa ezimemezelweni zasefektri, emagcekeni esikole, ezindaweni zokuhamba, nasezinhlelweni eziphuthumayo zezimboni. Azizami ukukhiqiza i-bass ejulile; zizama ukwenza amagama aqondakale.

Umklamo we-horn uphinde usize ngokwezomnotho wokufakwa. Kuhlelo lwe-PA lwe-70V noma lwe-100V, izikhulumi eziningi zingaxhunywa kanyekanye nama-power taps ahambisana nendawo ngayinye. Lokho kunciphisa ubunzima bezintambo futhi kuvumela ukwanda okuhleliwe. Kumaqembu ephrojekthi, lokhu kuvame ukubaluleka ngaphezu kwamandla omkhiqizo owodwa.

Ukuhlolwa kokuqina kwangaphandle kanye nezindinganiso okufanele uzicabangele ngaphambi kokuthenga

Ubufakazi bokuhlolwa bunamandla kunelebula elivikela isimo sezulu.

Uma ufuna isipikha esimelana nesimo sezulu, cela izinkomba zokuhlola ezibonisa ukuthi umkhiqizo uhlolwe kanjani. Isisekelo esivame ukuqondwa kakhulu yilesiI-IEC 60529ngezilinganiso ze-IP. Ngokuchayeka ekugqwaleni,I-ASTM G85inikeza isiqondiso sokufutha usawoti esishintshiwe, kuyilaphoI-ASTM B117isalokhu iyindlela yokufutha usawoti ongathathi hlangothi ecashunwa kabanzi. Lokhu kuhlolwa akuqinisekisi impilo yangempela ngokwako, kodwa kunikeza indawo yokuqala ethembekile yezindawo zasolwandle, ezisogwini, noma ezinolaka lwamakhemikhali.

Ngokuphathelene nokuthengwa, umbuzo osebenzayo awukhona ukuthi iyunithi iphumelele yini ukuhlolwa okukodwa elabhorethri. Ukuthi ngabe iphrofayili yokuhlola ifana nendawo yokufakwa yangempela. Ichweba elisogwini, igceke lezokuthutha eliwugwadule, kanye nesitshalo esinomswakama esishisayo kunezindlela zokwehluleka ezihluke kakhulu. Inkungu kasawoti, i-UV eqondile, ukujikeleza kokushisa, kanye nokudlidliza konke kuthinta izivalo kanye nehadiwe ngendlela ehlukile. Uma iphrojekthi ibaluleke kakhulu emsebenzini, cela ukubhalwa kwezinto ezivalekile, ukugqoka okuhlanganisiwe, ukwakheka kwe-cable gland, kanye nanoma yikuphi ukuhlolwa kokudlidliza noma ukuguga okutholakalayo.

Amathiphu okuklama uhlelo lwesistimu ye-PA esebenzisa izipikha ezingangenisi isimo sezulu

Isipikha esihle sisengahluleka ekwakhiweni okubi kwe-PA.

Kumaphrojekthi esistimu ye-PA yesipikha se-horn yangaphandle, i-amplifier, ikhebula, kanye nokuhlelwa kwendawo kufanele kwakhiwe ndawonye. Ukwakhiwa komugqa we-70V noma we-100V kuvame ukuthandwa ngoba kwenza kube lula ukubeka isipikha esisatshalaliswe ngesikhathi sokusebenza kwekhebula isikhathi eside. I-amplifier kufanele ibe nesikhala esanele sokugwema ukunqunywa ngesikhathi sokumenyezelwa okuphezulu. Ukuhanjiswa kwekhebula kufanele kuvikele ekuvezweni yi-UV, ekulimaleni ngokomzimba, kanye nokungena kwamanzi ezindaweni ezihlanganayo.

Umthetho owodwa owusizo ukuhlukanisa izindawo zokukhuluma ngomsebenzi. Umnyango wesango, indawo yokulayisha, kanye nomngcele wegceke akufanele kube nokuhlelwa okufanayo kwevolumu njalo. Izindawo ezahlukene zinamazinga ahlukene omsindo ozungezile kanye namabanga okulalela. Uma zonke izindawo ziphoqelelwa ezingeni elilodwa lokuvumelana, abanye abalaleli bazozwa ivolumu ephezulu ngenkathi abanye bephuthelwa yimiyalelo. Isu lokuhlukanisa indawo lenza nokulungiswa kube lula ngoba amaphutha angahlukaniswa ngokushesha.

Kumaphrojekthi lapho imiyalezo yokuphepha ibalulekile, isikhulumi esivikela isimo sezulu kufanele sisekele imisho ecacile yesimo esiphuthumayo kanye nohlelo lokuhlola oluqinisekisiwe. Ukuhlolwa kokuzwakala njalo kanye nokuhlolwa njalo kwezivalo, amabakaki, kanye nokufakwa kwekhebula kuyingxenye yokuthembeka kwesikhathi eside, hhayi izinto ezengeziwe ezingakhethwa.

1. Mepha indawo ngayinye yokulalela ngebanga, izinga lomsindo, kanye nokuphakama kokuyibeka.
2. Khetha isiqondiso se-horn ukuze unciphise umsindo olahlekile ngaphandle kwendawo okuqondiswe kuyo.
3. Usayizi we-amplifier ukuze ulayishe umthwalo oqhubekayo kanye ne-headroom ephezulu.
4. Cacisa isilinganiso se-IP, ukumelana nokugqwala, kanye nehadiwe yokufaka ndawonye.
5. Hlela izikhawu zokuhlola izivalo, izikhonkwane, kanye nezindlala zekhebula.

Ukuqhathanisa izinketho zezipikha ezivamile ezingamelani nesimo sezulu zabathengi bephrojekthi

Abathengi bephrojekthi kufanele baqhathanise ukufaneleka kwesimo sokusetshenziswa ngaphambi kokuqhathanisa izinombolo zekhathalogi.

Ezinhlelweni zokumemezela zangaphandle, izindlela ezintathu ezibanzi zezikhulumi zivamile: izikhulumi ze-horn, izikhulumi zekhabhinethi, kanye namayunithi e-all-in-one akhulisiwe. Izikhulumi ze-horn zingcono kakhulu ekuboniseni inkulumo kanye nokumbozwa emoyeni ovulekile. Izikhulumi zekhabhinethi zingazwakala zigcwele kodwa zivame ukusebenza kancane uma zikhishwa isikhathi eside ngaphandle. Imikhiqizo ezikhulisayo ingase ibe lula ukufakwa ezindaweni ezincane kodwa ingaba lula uma zisakazwa ezinhlelweni ezinkulu ezisatshalaliswayo. Kuhlelo lwe-PA lwezimboni, inketho engcono kakhulu ngokuvamile yileyo ehambisana ne-topology yesayithi lakho kanye nohlelo lwesevisi.

Uma ubuyekeza imindeni yemikhiqizo ku-ikhathalogi yomkhiqizo, qhathanisa indawo ehlosiwe kuqala, bese kuba yi-acoustic spec, bese kuba ukwakheka okungokoqobo. Lokho kuhleleka kuvame ukunciphisa amaphutha okuthenga. Isibonelo, iyunithi ehloselwe izindlela zokungena ezivikelekile ingase ingafaneleki egcekeni elivezwe ngokuphelele, noma ngabe inombolo yomsindo ibukeka ikhanga. Umqondo ofanayo uyasebenza ekunakekelweni: ukufinyelela okulula kanye nehadiwe ethathelwa indawo ngokuvamile kubaluleke kakhulu kunokukhipha okulinganiselwe okuphezulu kancane.

Uhlu lokuhlola ukuthenga lwangempela lwamaphrojekthi esistimu ye-PA yesipikha se-horn yangaphandle

Uhlu lokuhlola olufushane luvimbela ukulungiswa kabusha okubizayo ngemva kokufakwa.

Ngaphambi kokuthenga, qinisekisa ukuthi isipikha esimelana nesimo sezulu sifanelekile endaweni eqondile yokufaka, ukuvezwa okulindelekile, kanye nezinga lesignali. Buza ukuthi ngabe iyunithi yenzelwe ukufakwa odongeni, ensikeni, noma ophahleni. Qinisekisa ukuthi indawo ebiyelwe ilinganiselwe yini imvula eqondile noma ukusetshenziswa kwangaphandle okuvikelekile kuphela. Hlola ukuthi uhlelo lokuxhuma kanye nezindawo zokungena zekhebula ziyalungiseka yini ensimini. Uma iphrojekthi iseduze nogu, gcizelela ihadiwe elimelana nokugqwala bese ubuza ngobufakazi bokuhlolwa kokuvezwa usawoti.

1. Qinisekisa isilinganiso se-IP kanye nereferensi yokuhlola.
2. Qinisekisa ukuhambisana kwe-70V noma i-100V.
3. Qondanisa ukusabalala kwempondo nendawo yokulalela.
4. Hlola amathephu kagesi kanye nokubalwa komthwalo we-amplifier.
5. Buyekeza izinto ze-bracket, i-fastener, kanye ne-cable gland.
6. Cela isiqondiso sokufinyelela ekulungiseni kanye nokutholakala kwezingxenye ezizoshintshwa.

Imibuzo Evame Ukubuzwa mayelana nokukhetha izipikha ezingangenisi manzi zamaphrojekthi ohlelo lwe-PA lwesipikha sangaphandle

Uyini umehluko phakathi kwesipikha esingangenisi manzi nesipikha esingangeni manzi?

Isipikha esimelana nesimo sezulu senzelwe ukumelana nemvula, uthuli, i-UV, kanye nokushintsha kwezinga lokushisa langaphandle, kuyilapho ukungangenisi amanzi kuvame ukusho izinga lokumelana eliqinile lokuchayeka emanzini ngqo. Ekuthengeni, indlela ephephile ukucela isilinganiso sangempela se-IP esikhundleni sokuthembela egameni elithi ukumelana nesimo sezulu kuphela.

Kungani izikhulumi ze-horn zivame kakhulu ezinhlelweni ze-PA zangaphandle?

Izikhulumi ze-horn zivamile ngoba ziveza inkulumo kahle emabangeni amade nasezindaweni ezinomsindo. Ukuphuma kwazo kokuqondisa kusiza ekuthuthukiseni ukuqondakala emagcekeni avulekile, ezindaweni zokupaka izimoto, kanye nasezindaweni zezimboni.

Ingabe i-IP66 yanele ukusetshenziswa ngaphandle?

I-IP66 ivame ukuba yisisekelo esiqinile sezinhlelo zokusebenza ezivezwe ngaphandle ngoba ikhombisa ukuvikelwa okungenalo uthuli kanye nokumelana namajethi amanzi anamandla ngaphansiI-IEC 60529Kodwa-ke, ukugqwala kogu, ukudlidliza, kanye nokuvezwa yi-UV kungadinga ukucatshangelwa okwengeziwe kwezinto zokwakha kanye nehadiwe.

Ingabe kufanele ngikhethe i-70V noma i-100V yohlelo lwe-PA lwangaphandle?

Zombili zisetshenziswa kabanzi ekwakhiweni kwe-PA okusatshalaliswayo. Ukukhetha okulungile kuncike ekusebenzeni kwesifunda, ukutholakala kwe-amplifier, ukuthepha kwesipikha, kanye nebanga lekhebula eliphelele. Isihluthulelo ukugcina uhlelo luhambisana kusukela ku-amplifier kuya ku-speaker taps.

Isipikha sangaphandle kufanele sikhulume kangakanani?

Ayikho inombolo eyodwa yomsindo ojwayelekile ngoba umsindo ozungezile kanye nebanga kubalulekile. Umgomo owusizo wokuhlela ukugcina inkulumo okungenani i-10 dB ngaphezu komsindo wangemuva lapho kungenzeka khona, kanye nokuqondisa kwe-horn okusetshenziselwa ukugxila umsindo lapho abalaleli betholakala khona.

Yiziphi izindinganiso okufanele ngizicele lapho ngithenga isipikha esimelana nesimo sezulu?

Cela izinkomba ezifanele ze-IP, izinkomba zokuhlolwa kokugqwala ezifana nokuthiI-ASTM B117 or I-ASTM G85, kanye nolimi lokulinganisa olucacile oluhambisanaAmayunithi e-NIST SI.

Ingabe isikhulumi esisodwa se-horn singamboza indawo yonke yangaphandle?

Ngezinye izikhathi, kodwa hhayi ngokwethembeka. Ukumbozwa kuncike ku-geometry, izinga lomsindo, ukuphakama kokukhweza, kanye nokuzwakala okudingekayo. Amaphrojekthi amaningi angaphandle angcono kakhulu ngezikhulumi eziningana ezihloselwe kahle kuneyunithi eyodwa enkulu kakhulu.