Isikhulumi Esiphezulu Esithembekile Esingu-7 Isikhulumi Somphakathi Isikhulumi se-PA Isikhulumi se-OEM Imakethe Yabahlinzeki

• Khetha isikhulumi senkulumo yomphakathi ngokwembozwa, i-SPL, ukuqina, kanye nokuhlanganiswa kwesistimu, hhayi ngokwamandla kuphela.
• Ukuze uthole umhlinzeki wesipikha se-OEM, qinisekisa imibiko yokuhlola, ikhono lokwenza ngokwezifiso, ukulawula isikhathi sokuhola, kanye nokusekelwa kwezingxenye ezisele.
• Amaphrojekthi omsindo ezimboni kanye nawomsindo ophuthumayo adinga ukuhlolwa okusekelwe ezindinganisweni, ikakhulukazi ukuze kucace futhi kuthembeke.
• Idatha yobuningi efana nokuzwela, ukuvimba, isilinganiso se-IP, kanye namandla alinganisiwe kufanele ibhalwe phansi ngaphambi kokuthenga.

Isikhulumi senkulumo yomphakathi esithembekile kumele senze okungaphezu kokwenza umsindo; kumele sinikeze inkulumo ecacile, umphumela ozinzile, kanye nokusebenza okubikezelwayo endaweni yangempela yokufaka. Ezinhlelweni ze-alamu yezwi kanye ne-paging, ukuqondakala kubalulekile ngoba umgomo awukona nje ukuzwakala kodwa ukulethwa kwemiyalezo efanele, ikakhulukazi ezindaweni ezinomsindo lapho ukufihla inkulumo kungaba nzima khona. Isiqondiso semboni njengeI-NFPA 72kanye nohlaka lwe-ISO lokuklama uhlelo lwe-alamu yezwi kusiza abathengi ukuthi bahlole ukuthi isikhulumi se-PA sifanelekile yini ekuphepheni impilo, ekubhaleni amakhasi ezimboni, noma ekumemezelweni okuvamile. Kubathengi bephrojekthi, umhlinzeki wesipika we-OEM othembekile kufanele futhi ahlinzeke ngokufanisa uhlelo lokusebenza, ukuhambisana kukagesi, kanye nemibhalo yekhwalithi elandelekayo.

Indlela yokukhetha isikhulumi senkulumo yomphakathi samaphrojekthi ezimboni nawezentengiselwano

Isikhulumi senkulumo yomphakathi esingcono kakhulu yilesi esifanelana nezidingo ze-acoustic nezendawo. Isikhulumi esisebenza kahle endaweni yokuthengisa singahluleka enqolobaneni yokugcina impahla, epulatifomu yezokuthutha, phansi efektri, noma egcekeni langaphandle ngoba phansi komsindo, ukuzwakala kwezwi, kanye nebanga lokufakwa kuhluke ngokuphelele. Umsebenzi wokuqala womthengi ukuchaza ukuthi umsindo kumele uzwakale kuphi, kuliphi ibanga, futhi ngaphansi kwaziphi izimo zemvelo.

Emsebenzini wokukhetha osebenzayo, izinombolo ezintathu zibalulekile kuqala: ukuzwela, amandla alinganisiwe, kanye nephethini yokumboza. Ukuzwela kuvame ukuvezwa njenge-dB ku-1 W / 1 m, amandla alinganisiwe avame ukuboniswa ngama-watts, kanti i-engeli yokusabalala ikutshela ukuthi ingakanani indawo iyunithi ngayinye engayimboza. Isikhulumi esinozwela oluphezulu singafinyelela i-SPL edingekayo ngamandla amancane e-amplifier, kuyilapho i-engeli yokumboza encane ingathuthukisa ukugxila kwenkulumo ezindaweni ezinde noma emigwaqweni yangaphandle.

Ekufakweni kwezikhulumi eziningi, ukusatshalaliswa kwama-V angu-70 noma angu-100 kuvamile ngoba kwenza kube lula ukufaka izintambo futhi kuvumela izikhulumi eziningi emgqeni owodwa. Uhlelo lwangempela lwe-voltage kumele luhlolwe ngokuhambisana nomkhuba wendawo kanye nomklamo we-amplifier. Ezitshalweni ezinkulu, ukuhlela okungalungile kwe-impedance kungadala izindawo ezibuthakathaka, ukusika kwe-amplifier, noma amazinga okungalingani kwe-paging okunciphisa ukucaca kwenkulumo.

Kubathengi abaqhathanisa amamodeli, indlela emfushane ewusizo ukuqala ngayoamadivayisi okuxhumana ezimboniniuma iphrojekthi iqhutshwa ukuphepha, khona-ke ncipha uye ekhasini elifanele noma ukwakheka kwesimemezelo. Uma umsebenzi uhilela impendulo ephuthumayo, ukuhlanganiswa kwe-alamu yezwi, noma ukukhushulwa kwe-alamu, ukuhambisana kwezinga lesistimu kufanele kudlule okuthandwa ubuhle.

Isikhulumi sekheli lomphakathi, isikhulumi se-PA, kanye nomhlinzeki wesipika se-OEM: lokho okushiwo yigama ngalinye ngempela

Amagama athi isikhulumi sekheli lomphakathi kanye nesikhulumi se-PA avame ukusetshenziswa ngokushintshana, kodwa umongo wokuthenga awufani ngaso sonke isikhathi. Isikhulumi se-PA ngokuvamile siyisici somsindo esisebenzayo ohlelweni lwe-paging noma lwesimemezelo, kuyilapho isikhulumi sekheli lomphakathi singachazwa kabanzi ngokusetshenziswa kwesimemezelo sezentengiselwano, sezikhungo, noma sezimboni. Kumaqembu okuthenga, lo mehluko ubalulekile ngoba umndeni ofanayo womkhiqizo ungathengiswa ngamakhithi okufaka ahlukene, izinto zokuvala, kanye nezinketho ze-voltage yomugqa.

Umhlinzeki wesipikha se-OEM unezela esinye isendlalelo: umhlinzeki akagcini nje ngokuthengisa iyunithi eqediwe kodwa futhi usekela ilebula yangasese, ukwenza ngokwezifiso okulinganayo, ukulungiswa kwe-acoustic, kanye nokuhlanganiswa nomugqa womkhiqizo womkhiqizo. Lokho kusho ukuthi umhlinzeki kumele alawule iziguquguquko eziningi, kufaka phakathi ukuhambisana komshayeli, ikhwalithi yokuvala, ukuqina kwesixhumi, kanye nokuphindeka kokuhlolwa. Abathengi kumaphrojekthi e-B2B kufanele bacele uhlobo olufanayo lobufakazi abangalucela kunoma yimuphi umkhiqizo onjiniyela: ukulawula ukudweba, ukuvunyelwa kwesampula, inqubomgomo yokushiswa, kanye nokulandelela ukukhiqiza.

Uma ufuna kumhlinzeki wesipikha se-OEM, ishidi ledatha lobuchwepheshe alanele lodwa. Ishidi ledatha kufanele lisekelwe amandla okukhiqiza, ukuqinisekiswa kwesampula, kanye nemodeli yesevisi engaphatha izingxenye ezithathelwanayo kanye nokulawulwa kokubuyekezwa. Lokhu kubaluleke kakhulu kumaphrojekthi anokulindela umjikelezo wempilo ende, ngoba ingxenye ye-acoustic oyithengayo namuhla ingadinga ukusekelwa iminyaka eminingi.

Kwabahleli bezinhlelo,izixazululo zesistimu ye-pagingNgokuvamile kuyisiqalo esingcono kunokuphequlula ngomkhiqizo owodwa ngoba isikhulumi sekheli lomphakathi esifanele sincike ku-amplifier, ukusatshalaliswa komugqa, kanye ne-topology yokufaka. Uma iphrojekthi isakhiwa kabanzi, lokho kubukwa kwesistimu kungavimbela ukwakhiwa kabusha okubizayo kamuva.

Imininingwane yobuchwepheshe ehlukanisa isikhulumi se-PA esithembekile neyunithi ejwayelekile

Isipikha se-PA esithembekile sichazwa ngokusebenza okuphindaphindwayo, hhayi nje ilebula enamandla aphezulu. Abathengi bavame ukugxila kumandla, kodwa amandla kuphela awakutsheli ukuthi inkulumo ingahamba ibanga elingakanani, ukuthi imboza igumbi ngokulinganayo kangakanani, noma ukuthi kuvela ukuphambuka okungakanani ezingeni lokusebenza. Uhlu lokuhlola lokuthenga oluwusizo kakhulu luhlanganisa ukuzwela, impendulo yemvamisa, izinga lokucindezela komsindo, izinto ezivalekile, ukuvikelwa kokungena, kanye nendlela yokufaka.

Izinhlelo zokukhuluma zivame ukubeka phambili isifunda se-mid-band ngoba ukuqondakala kuncike kakhulu emandleni ongwaqa. Isikhulumi esinesandiso se-bass esibanzi kodwa esicacile kahle se-middle range singazwakala sihlaba umxhwele ekudlaleni umculo kodwa sehluleke ukukhipha izwi. Ngaleso sizathu, izikhulumi eziningi ze-PA zezimboni zilungiselelwe ukukhiqizwa kwezwi kunokusetshenziswa kwe-hi-fi yebanga eliphelele.

Ezindaweni ezingaphandle noma ezivezwe kancane, ukuqina kwemvelo kubalulekile. Uthuli, umswakama, i-salt spray, kanye nokujikeleza kwezinga lokushisa kungalimaza ama-terminal, ama-cone, noma izindawo ezivalekile isikhathi eside ngaphambi kokuba umshayeli we-acoustic afinyelele umkhawulo wokuphila kwawo. Yingakho abathengi bezimboni kufanele bacele imininingwane yezinto ezibonakalayo, imininingwane yokwakheka kwe-gasket, kanye nobufakazi bokuhlolwa kwemvelo kunokucabanga ukuthi zonke izikhulumi ezilinganiswe nesimo sezulu ziyalingana.

Ngendlela efanayo yokuthola ulwazi, uhlelo lomkhiqizo olubanzi lubalulekile. Umhlinzeki ohlinzeka futhiizingcingo zezimboniNgokuvamile ukuqonda ukuthembeka kohlelo ezindaweni ezinzima kangcono kunomhlinzeki othengisa imikhiqizo yomsindo yabathengi kuphela. Lowo mongo ungabalulekile lapho isikhulumi se-PA kufanele sisebenze khona kanye nezindawo zokuxhumana eziphuthumayo.

Indlela yokuhlola umhlinzeki wesipikha se-OEM ngaphambi kokufaka i-oda lephrojekthi

Umhlinzeki wesipikha se-OEM kufanele ahlolwe njengomlingani wobunjiniyela, hhayi nje njengomthengisi. Iphutha elivame kakhulu lokuthola ulwazi ukuvuma isampula ezwakala yamukelekile egumbini lokubonisa kodwa yehluleka ezimweni zasensimini ngoba umhlinzeki akazange abhale phansi ukubekezelelana kokukhiqiza, ukuthola ulwazi lwezingxenye, noma ukuvumelana kwesikhathi eside.

Ngaphambi kokufaka i-oda, amaqembu okuthenga kufanele ahlole ukuthi umhlinzeki angawusekela yini umsebenzi welebula yangasese, ukuguqulwa kwe-enclosure, izinguquko zesixhumi, izinhlobo ze-impedance, kanye nomsebenzi wobuciko noma ukwenza ngokwezifiso ukupakisha. Kufanele futhi acele ubufakazi be-QA, okuhlanganisa ukuhlolwa okungenayo, ukuhlolwa kokugcina kwe-acoustic, kanye nokuqinisekiswa kokupakisha. Uma umhlinzeki engakwazi ukuchaza ukuthi ugcina kanjani ukuvumelana kusukela kusampula kuya ekukhiqizweni okukhulu, lokho kuyisibonakaliso sengozi.

1. Cela ishidi ledatha eligcwele elinozwela, ukuvimba, amandla alinganisiwe, kanye nemininingwane yokuvala.
2. Cela izithombe zohlelo lokusebenza ezibonisa izindawo zangempela zokufaka.
3. Qinisekisa ukuvumelana kwesampula kuya ekukhiqizweni ngenqubo yokugunyazwa kwesihloko sokuqala.
4. Qinisekisa isikhathi sokuhola, isu lezingxenye ezisele, kanye nokulawula ukubuyekezwa.
5. Hlola imigomo yewaranti kanye nesikhathi sokuphendula esikhundleni.

Umhlinzeki wezipikha we-OEM othembekile kakhulu uzochaza nokuthi umkhiqizo akufanele usetshenziswe kuphi. Lokho kungase kuzwakale kungalungile, kodwa empeleni kuyisignali yokuthembana. Isibonelo, uma isipikha senzelwe ukukopisha ngaphakathi endlini, umhlinzeki kufanele asho lokho ngokucacile kunokuba asho ukufaneleka kwendawo yangaphandle noma eyingozi okungakaze kuhlolwe.

Ezindaweni ezinkulu, ukuthenga kuvame ukuxhumanisa amadivayisi omsindo nezinhlelo zokuxhumana zokuphepha ezibanzi. Uma iphrojekthi yakho ihlanganisa nokuxhumana kwe-alamu kanye nezimo eziphuthumayo, buyekezaizixazululo ze-intercom eziphuthumayokungasiza ukuvumelanisa inethiwekhi yesipikha nemisebenzi yokusebenza yokuphendula. Lolu hlobo lokucabanga kohlelo lunciphisa ukumangala kokuhlanganiswa kamuva.

Izindinganiso, ukuhlolwa, kanye nezinombolo abathengi okufanele bazicele

Izindinganiso zenza ukuthengwa kwezikhulumi kube okunenhloso ngoba ziguqula izimangalo ezingacacile zibe yizindlela ezivivinywayo. Ngezinhlelo zezwi eziphuthumayo,I-ISO 7240-16ihlanganisa izingxenye zesistimu yomsindo, kuyilaphoI-NFPA 72isetshenziswa kabanzi ezinhlotsheni ze-alamu yomlilo kanye nezinhlelo zokuxhumana eziphuthumayo e-United States. Uma iphrojekthi isendaweni elawulwayo, umhlinzeki kufanele akwazi ukuhlanganisa imibhalo yomkhiqizo wakhe nesethi ejwayelekile efanele.

Omunye wemibono ye-acoustic ewusizo kakhulu ukuqondakala kwenkulumo. Ngokwezwi elingokoqobo, uma umlaleli engakwazi ukuqonda umlayezo, umsindo wodwa awanele. Imboni ivame ukusebenzisa i-STI, noma i-Speech Transmission Index, kanye nezindlela ezihlobene ukuhlola ukuqondakala ezindaweni zangempela. Nakuba imigomo eqondile incike kukhodi kanye nokusetshenziswa, iphuzu elibalulekile ukuthi ukufakwa kwangempela kufanele kulinganiswe, hhayi ukuqagelwa.

Umthetho owusizo ukuthi umthengi akufanele amukele kuphela imishwana yokumaketha efana nokuthi “loud,” “clear,” noma “durable.” Cela ubufakazi bezinombolo: ukuzwela ku-dB, amandla kuma-watts, impedance kuma-ohms, isilinganiso se-IP, kanye nendinganiso noma indlela esetshenziswayo yokuhlola. Lezo zinombolo yizo ezivumela onjiniyela, abahlanganisi, kanye namaqembu okuthenga ukuthi baqhathanise amamodeli ngendlela efanele.

Ukuze kuhlelwe iphothifoliyo yesikhathi eside, abanye abathengi baphinde babukeze amakhasi ezixazululo afana nalawaizinhlelo ze-intercomngoba isikhulumi se-PA sivame ukuba yingxenye yokwakhiwa kokuxhumana okuphuthumayo okubanzi. Lokho kuyiqiniso ikakhulukazi kumaphrojekthi ezimboni, ekhempasini, kanye nezokuthutha lapho imisebenzi ye-paging, i-intercom, kanye ne-alamu ihlangana khona.

Lapho isikhulumi senkulumo yomphakathi sihluleka khona ensimini nokuthi singakugwema kanjani lokho

Isikhulumi senkulumo yomphakathi sivame ukwehluleka ensimini ngoba umongo wokufakwa wawungabhekwa njengophansi. Izinkinga ezivame kakhulu ukungasebenzi kahle ezindaweni ezinomsindo, i-engeli yokukhweza engeyinhle, ukulayisha okungalungile kwe-impedance, kanye nokuchayeka kumswakama noma ukudlidliza. Lokhu kwehluleka akuvamile ukuba yimfihlakalo; ngokuvamile kuba umphumela wokukhetha isigaba somkhiqizo ngaphandle kokuqinisekisa izimo zesayithi.

Umsindo ungenye yezinto ezifihliwe kakhulu. Ezindaweni zezimboni, umsindo wangemuva ungakhuphuka ngokwanele kangangokuthi inkulumo ifihlakele ngisho nalapho isikhulumi sisebenza kahle. Kulezo zimo, onjiniyela bavame ukuxazulula inkinga ngokusebenzisa indawo yesipika esendaweni, amayunithi okuzwela okuphezulu, noma umklamo wesistimu osabalalisiwe onciphisa ukulahleka kwebanga. Umgomo awukona nje ukwenza isikhulumi sizwakale kakhulu, kodwa ukuthuthukisa ukugcinwa kwemiyalezo endaweni yokulalela.

• Ungalinganisi uhlelo ngendawo yegumbi kuphela; sebenzisa izinga lomsindo, ukuphakama kokulifaka, kanye nebanga lomlaleli.
• Ungacabangi ukuthi izipikha zangaphakathi nezangaphandle ziyashintshana.
• Ungawunaki umnyango we-amplifier, ikakhulukazi ezinhlelweni ezinama-zone amaningi.
• Ungavumi umhlinzeki ngaphandle kwamasampula kanye nedatha yokuhlola.

Esinye isici esivame ukwehluleka ukulungiswa. Uma indawo ebiyelwe kunzima ukuyivula, ihadiwe yokufaka ingeyona ejwayelekile, noma izingxenye ezisele zingatholakali, izindleko zokuphila konke zikhuphuka ngokushesha. Yingakho abathengi bephrojekthi bevame ukukhetha abahlinzeki abangasekela kokubili ukunikezwa kwedivayisi kanye nokuqhubeka kokuthengisa ngemva kokuthengisa. Empeleni, umhlinzeki wezipikha ze-OEM ongcono kakhulu akanciphisi nje kuphela ingozi yezindleko zamayunithi kodwa futhi nengozi yokusebenza isikhathi sokungasebenzi.

Izindlela eziyisikhombisa eziphezulu zokuthembeka zokuthola isikhulumi senkulumo yomphakathi

Abahlinzeki bezikhulumi zenkulumo zomphakathi abathembeke kakhulu akubona labo abanezimangalo ezizwakalayo kakhulu; yibo abangaphindaphindeka. Uma uqhathanisa abahlinzeki, gxila ezicini ezifanayo eziyisikhombisa njalo ukuze isinqumo sihlale siqotho futhi sihloleka.

1. Ukusebenza kwe-acoustic:ukuzwela, i-SPL, kanye nephethini yokumboza kumele kufane nendawo.
2. Ukuhambisana kukagesi:Izinketho ze-8 ohm, 70 V, noma i-100 V kufanele zivumelane nesistimu.
3. Ukuqina kwemvelo:indawo ebiyelwe kanye nehadiwe kumele kuhambisane nezinga lokuvezwa.
4. Ikhwalithi yamadokhumenti:amashidi edatha, idatha yokuhlola, kanye nemidwebo kufanele kube sobala futhi kube sesimweni samanje.
5. Ukuguquguquka kwe-OEM:Izinketho zokufaka ilebula langasese, umbala, isixhumi, kanye nokufakwa kufanele zitholakale uma kudingeka.
6. Ukuzinza kokunikezwa:isikhathi sokuhola, izingxenye ezisele, kanye nokulawula ukubuyekezwa kubalulekile kumaphrojekthi eminyaka eminingi.
7. Ukuqondanisa amazinga:umhlinzeki kufanele aqonde ikhodi efanele kanye nokuhlolwa okulindelwe.

Kubathengi abakha uhlu olufushane,izixazululo zesistimu yamakheli omphakathiinikeza indlela ewusizo yokuqhathanisa imindeni yezingxenye kunemikhiqizo ehlukanisiwe. Lokho kwenza kube lula ukubona ukuthi isikhulumi, i-amplifier, kanye nokwakheka kokulawula kuyahambisana yini ngaphambi kokuqala kwezingxoxo zezentengiselwano.

Emsebenzini wokuthenga wangempela, umbuzo ofanele awusiwo othi “Yisiphi isikhulumi esingcono kakhulu?” kodwa uthi “Yisiphi isikhulumi esingcono kakhulu kule ndawo, le mfuneko yekhodi, kanye nale modeli yokulungisa?” Lokho kushintsha kohlaka kuvame ukuholela ezinqumweni ezingcono, izinguquko ezimbalwa zasensimini, kanye nezindleko eziphansi zomjikelezo wokuphila.

Imibuzo Evame Ukubuzwa mayelana nesipikha sekheli lomphakathi, isipikha se-PA, kanye nomhlinzeki wesipikha se-OEM

Yisiphi isici esibaluleke kakhulu sesikhulumi senkulumo yomphakathi?

Ukuzwela ngokuvamile kuyisici sokuqala okufanele sihlolwe ngoba kukhombisa ukuthi isipikha siguqula kanjani amandla okufaka abe yingcindezi yomsindo ophumayo. Ngemuva kwalokho, qinisekisa amandla alinganisiwe, i-impedance, kanye ne-angle yokumboza.

Ingabe isikhulumi se-PA sihlukile kunesikhulumi senkulumo yomphakathi?

Kumaphrojekthi amaningi, la magama asetshenziswa ngendlela efanayo. Nokho, ekuthengeni, isikhulumi se-PA sivame ukubhekisela endaweni yokugcina yesistimu, kuyilapho isikhulumi senkulumo yomphakathi singachaza isigaba esibanzi somkhiqizo wokusetshenziswa kwesimemezelo.

Ngingazi kanjani ukuthi umhlinzeki wezipikha ze-OEM uthembekile?

Cela imidwebo yokukhiqiza, amarekhodi okuvunyelwa kwesampula, idatha yokuhlolwa kwe-acoustic, kanye nenqubo ecacile yokulawula ukubuyekezwa. Umhlinzeki othembekile angabonisa ukuthi ugcina kanjani ukuvumelana kusukela kumodeli kuya ekukhiqizweni okukhulu.

Ingabe ngidinga uhlelo lwesipikha esingu-70 V noma esingu-100 V?

Amanethiwekhi okuxhumana kwezentengiselwano nezimboni asatshalaliswa avame ukusebenzisa imigqa engu-70 V noma engu-100 V ngoba enza kube lula ukuxhuma izintambo kanye nokwandiswa kwendawo. Ukukhetha okulungile kuncike ekusebenzeni kwendawo kanye nomklamo we-amplifier.

Yiziphi izindinganiso okufanele ngizihlole uma zisetshenziswa ngokuphuthumayo?

Ngezinhlelo zokusebenza zezwi eziphuthumayo, abathengi bavame ukubhekisela kuzoI-ISO 7240-16futhiI-NFPA 72Imithetho esebenzayo incike ezweni, isicelo, kanye nencazelo yephrojekthi.

Kungani ukucaca kwenkulumo kubaluleke kakhulu kunokuphakama?

Ngoba abantu kumele baqonde umlayezo, ikakhulukazi ngesikhathi se-alamu noma izimemezelo zokusebenza. Isikhulumi esikhulu kodwa esingacacile singadala ukudideka esikhundleni sokuphepha.

Yini okufanele ngiyibuze ngaphambi kokuthenga ngobuningi kumhlinzeki wezipikha ze-OEM?

Qinisekisa isikhathi sokulethwa, ukutholakala kwezingxenye ezisele, ikhwalithi yokupakishwa, ukuhambisana kwe-acoustic, nokuthi umhlinzeki angakwazi yini ukusekela izidingo zelebula yangasese noma zokufakelwa ngokwezifiso.