Thenga iSpeaker esingenamozulu kwi-Intanethi kwiiprojekthi zeNkqubo ye-PA yeSpeaker yangaphandle

• Izithethi ze-horn zangaphandle zikhethwa ukuze zisetyenziswe xa kudlalwa ilizwi, kungekhona xa kudlalwa umculo opheleleyo.
• Ukusebenza kokumelana nemozulu kuxhomekeke kuvavanyo lwendawo ebiyelweyo, ukutywinwa, ukumelana ne-UV, ukuqina kwenkungu yetyuwa, kunye nokuqina kokuyifaka.
• Impumelelo yeprojekthi ixhomekeke ekufaniseni i-engile yokugubungela, inqanaba loxinzelelo lwesandi, kunye noyilo lwe-voltage yomgca nendawo engqongileyo yendawo.
• Kwi-industrial paging, kufuneka kukhethwe isithethi esimelana nemozulu kunye ne-PA topology, indlela yekhebula, kunye nesicwangciso sokulungisa.

Ukuthenga isithethi esimelana nemozulu kwiprojekthi yenkqubo ye-PA kuthetha ukulinganisela ukufikelela kwe-acoustic, ukuqina, kunye nokuthobela imithetho. Kwiifekthi zangaphandle, ukhuseleko lokungena ludla ngokuchazwa kwi-IP66 okanye kwi-IP67 phantsi kwe-IP67.I-IEC 60529uyilo, ngelixa uvavanyo lokuvezwa ngaphandle ludla ngokubhekisa kwimitha yelanga, ukufuma, kunye nokumelana nenkungu yetyuwa kwimigangatho efana naleI-ASTM B117ukuze kubonakale ityuwa etshizwayo kwayeIiyunithi ze-NIST SIngolwimi lokulinganisa oluhambelanayo. Kwindlela eqhelekileyo yoyilo lwe-PA yemizi-mveliso, inkqubo yomgca we-70V okanye we-100V ikhethwa xa kusaziswa izithethi ezininzi kuba inciphisa ukwehla kwevolthi kumgama omde kwaye yenza kube lula ukucwangciswa komthwalo. Ukuba iprojekthi yakho ibandakanya iindawo zokulayisha, iindawo zokupaka, iindawo zokugcina impahla, okanye iindawo ezijikeleze umgama, umbuzo wokwenyani awukokuba ingaba isithethi singenza isandi na, kodwa kukuba ingaba singahlala siqondakala na emva kwemvula, uthuli, ukungcangcazela, kunye neminyaka yokuvezwa yi-UV.

Oko kufuneka kwenziwe sisithethi esimelana nemozulu kwinkqubo ye-PA yesipikha esingaphandle

Isithethi esimelana nemozulu kufuneka siphile kwindawo esingqongileyo kuqala size sinike ilizwi eliqondakalayo emva koko.

Kwiiprojekthi zenkqubo ye-PA yesipikha se-horn yangaphandle, i-horn form factor ibalulekile kuba igxininisa amandla e-acoustic kwipateni encinci. Oko kwenza kube lula ukugubungela iindlela zokuhamba, iiyadi, amasango asecaleni kweyadi, imida yezityalo, kunye nezinye iindawo ezivulekileyo apho isithethi esiqhelekileyo sisasazeka khona kakhulu. Ingxaki kukuba izipikha ze-horn zihlala zilungiselelwe ukuphinda zivelise ibhendi yentetho endaweni yokuthembeka komculo opheleleyo. Kwii-paging, ii-alamu, imiyalelo yongxamiseko, kunye nezibhengezo zokutshintsha i-shift, oko kuhlala kuyinzuzo kunokuba kube ngumda.

Kwiiprojekthi ezininzi zangaphandle, imibuzo efanelekileyo yokusebenza yile: ingaba umyalezo ufikelela phi, ukuba ungakanani na ubulumko obugcinwe emoyeni nasemsindweni, kunye nokuba ingaba indawo ebiyelweyo iyasinda na kwimijikelo yemozulu ngaphandle kokuqhekeka okanye ukuvuza. Isithethi esimelana nemozulu esisetyenziswa kwinkqubo ye-PA kufuneka ke ngoko sivavanywe njengenxalenye yendlela epheleleyo yonxibelelwano, kungekhona njengebhokisi ezimeleyo.

Iinkcukacha zesithethi ezingangeni mozulu ezibaluleke kakhulu

Iphepha leenkcukacha elingcono lelo lihambelana neemeko zentsimi, kungekhona ulwimi lokuthengisa.

Xa uthelekisa iimveliso, beka phambili iiparameter ezilinganisekayo. Umlinganiselo oqhelekileyo wobungcali kukukhusela i-IP66 okanye i-IP67 ebiyelweyo, nto leyo ebonisa ulwakhiwo olungenathuli kunye nokumelana okunamandla kwiijethi zamanzi okanye ukuntywiliselwa okwethutyana ngokuxhomekeke kumlinganiselo ochanekileyo. E-US nakwiinkqubo ezininzi zokuthenga zemizi-mveliso, olo mgangatho ludla ngokufundwa kunye nomgangatho wehardware yokufakela, uyilo lwe-gasket, kunye nokhuseleko lokungena kwikhebula. Kuyilo lwe-acoustic, izithethi ze-horn zihlala zilinganiswa ngeendlela zokucofa amandla ezifana ne-5 W, 10 W, 15 W, 20 W, okanye ngaphezulu kwimigca ye-70V/100V, okuvumela abayili beenkqubo ukuba babale umthwalo opheleleyo kunye nebhalansi yokugubungela.

Ukusetyenziswa ngaphandle, izinto ezivalekileyo nazo zibalulekile. Ii-ABS ezizinzisiweyo yi-UV, i-aluminium, okanye izindlu zesinyithi ezigqunywe ngumgubo zixhaphakile. Iindawo ezinomoya wetyuwa zifuna ukumelana nokugqwala okunamandla kuneeyadi zangaphakathi. Iprojekthi ekufutshane nonxweme ingaphumelela uvavanyo lwe-acoustic lwexesha elifutshane kodwa ingaphumeleli emva kokugqwala kwexesha elithile ukuba izibophelelo, izibiyeli, okanye izitywini azichazwanga ngokwaneleyo.

Indlela yokukhetha isithethi esimelana nemozulu ukuze sigqunywe yi-PA yesithethi esingaphandle

Ukucwangcisa ukugubungela kubaluleke ngaphezu kokuthenga i-horn speaker ephezulu onokuyifumana.

Eyona mpazamo iphambili kwiiprojekthi ze-PA zangaphandle kukulinganisa amandla aphezulu esandi kunye neziphumo ezingcono. Ngokwenyani, ukuqonda kuxhomekeke kumgama, ingxolo yangasemva, ipateni yesandi, ukuphakama kokufakwa, kunye nenani leendawo zokumamela. Indawo yokupaka inokufuna iimpondo ezincinci ezimbalwa endaweni yeyunithi enye enkulu. Umjikelezo wendlu yokugcina impahla unokufuna izithethi ezijoliswe ngononophelo ukuthintela ukuchitheka kwesandi kwiindawo ezikufutshane. Idokhi yokulayisha, ngokwahlukileyo, inokuzuza kwimpondo enkulu ene-engile eqinileyo yemitha.

Kwi-voice paging, injongo yoyilo olusebenzayo kukugcina intetho efunyenweyo ingaphezulu kwe-10 dB ngaphezu kwengxolo engqongileyo nanini na xa kunokwenzeka. Kwiindawo zoshishino ezinengxolo, loo mda unokufuneka ube phezulu. Yingakho kufuneka kukhethwe isithethi esimelana nemozulu kucingwa ngeprofayili yengxolo yendawo. Izithethi ze-Horn zinokuba luncedo kakhulu kuba zigxila amandla apho abantu bemi khona, nto leyo ephucula ukucaca kwentetho ngaphandle kokunyusa amandla enkqubo ngokubanzi.

Amaqela amaninzi eprojekthi athelekisaiimveliso zonxibelelwano lwemizi-mvelisongokwemeko yofakelo lwabo endaweni yegama lemveliso kuphela. Loo ndlela iluncedo ngakumbi kuba isithethi esifanayo esimelana nemozulu singenza ngendlela eyahlukileyo eludongeni, kwipali, kwisibiyeli sesilingi, okanye engalweni ye-gantry. Ukuba iprojekthi ibandakanya isaziso sengxamiseko, kuya kuba bubulumko ukuphonononga okunxulumene noko.Izisombululo zenkqubo ye-PAkwaye ibandakanye ne-headroom ye-amplifier, ukubekwa kweliso kumgca, kunye nokufikelela kulondolozo kwasekuqaleni.

Kutheni izithethi zeempondo zangaphandle zisebenza ngcono kunezithethi eziqhelekileyo kwiindawo ezinzima

Izithethi zeHorn zihlala ziphumelela ngaphandle kuba ziphucula ukusebenza kakuhle kwesandi apho kubaluleke khona.

Ikhabhathi yesipikha eqhelekileyo isasaza isandi ngokubanzi, nto leyo eluncedo ngaphakathi kodwa ingasebenzi kakuhle kwiindawo ezivulekileyo. Isipikha esisebenza nge-horn sicinezela i-acoustic output ibe yipatheni elawulwayo, nto leyo enyusa isandi esibonwayo kwicala ekujoliswe kulo. Oku kubaluleke kakhulu kwiindawo zangaphandle apho umoya, izithuthi, oomatshini, kunye nemigama emide kunciphisa ukucaca kwentetho.

Kwimisebenzi yezoshishino, isithethi esimelana nemozulu sidla ngokukhethwa ukuze sisetyenziswe xa kufikwa kwilizwi. Oko kuthetha ukuba impendulo yemvamisa inokwakheka ngabom kwibhendi yentetho, ngokuqhelekileyo ijikeleze umgama ophakathi apho kuhlala khona ukuqondwa kwezandi. Esi sesinye sezizathu zokuba izithethi ze-horn zixhaphake kwizaziso zefektri, kwiiyadi zesikolo, kwiindawo zothutho, nakwiinkqubo zongxamiseko zoshishino. Azizami ukuvelisa i-bass enzulu; zizama ukwenza amagama aqondakale.

Uyilo lwe-horn lukwanceda ngoqoqosho lokufakela. Kwinkqubo ye-70V okanye ye-100V PA, izithethi ezininzi zinokudityaniswa ngaxeshanye kunye neempompo zamandla ezihambelana nendawo nganye. Oko kunciphisa ubunzima beentambo kwaye kuvumela ukwandiswa okucwangcisiweyo. Kumaqela eprojekthi, oku kudla ngokubaluleka ngaphezu kwamandla entloko yemveliso enye.

Uvavanyo lokuqina kwangaphandle kunye nemigangatho ekufuneka uyibuze ngaphambi kokuba uthenge

Ubungqina bovavanyo bunamandla kunelebheli ekhusela imozulu.

Xa ufuna isithethi esimelana nemozulu, cela iireferensi zovavanyo ezibonisa indlela imveliso evavanywe ngayo. Eyona nto iqondwa kakhulu yileI-IEC 60529kwiireyithingi ze-IP. Ukuvezwa kokugqwala,I-ASTM G85inika isikhokelo sokutshiza ityuwa eguquliweyo, ngelixaI-ASTM B117isasetyenziswa kakhulu njengendlela yokutshiza ityuwa engathathi cala. Olu vavanyo aluqinisekisi ubomi bokwenyani ngokwalo, kodwa lubonelela ngendawo yokuqala ethembekileyo yolwandle, unxweme, okanye iindawo ezinobundlongondlongo beekhemikhali.

Ngokuphathelele ukuthenga, umbuzo osebenzayo awukuko ukuba iyunithi iphumelele uvavanyo olunye kwilebhu. Kukuba ingaba iprofayili yovavanyo ifana nendawo yokufakelwa yokwenyani. Izibuko eliselunxwemeni, igadi yempahla yasentlango, kunye nesityalo esinomswakama esishushu zineendlela ezahlukeneyo zokusilela. Inkungu yetyuwa, i-UV ethe ngqo, ukujikeleza kobushushu, kunye nokungcangcazela zonke zichaphazela izitywina kunye nezixhobo ngokwahlukileyo. Ukuba iprojekthi ibaluleke kakhulu kumsebenzi, cela uxwebhu lwezinto ezibiyelweyo, i-bracket coating, uyilo lwe-cable gland, kunye naluphi na uvavanyo lokungcangcazela okanye lokwaluphala olufumanekayo.

Iingcebiso zoyilo lwenkqubo ye-PA esebenzisa izithethi ezimelana nemozulu

Isithethi esilungileyo sisenokungaphumeleli kwisakhiwo esibi se-PA.

Kwiiprojekthi zenkqubo ye-PA yesipikha se-horn yangaphandle, i-amplifier, iintambo, kunye noyilo lwendawo kufuneka zenziwe kunye. Uyilo lomgca we-70V okanye we-100V ludla ngokukhethwa kuba lwenza kube lula ukubeka isipikha esisasazekileyo ngexesha elide lokusebenzisa iintambo. I-amplifier kufuneka ibe nendawo eyaneleyo yokuthintela ukunqunyulwa ngexesha lokubhengezwa okuphezulu. Ukuhanjiswa kweentambo kufuneka kukhusele ekuvezweni yi-UV, ekonakaleni ngokwasemzimbeni, nasekungeneni kwamanzi kwiindawo ezidibanayo.

Omnye umthetho oluncedo kukwahlula iindawo zentetho ngokwemisebenzi. Umnyango wesango, indawo yokulayisha, kunye nomjikelezo weyadi akufuneki zihlale zinesimo esifanayo somthamo. Iindawo ezahlukeneyo zinezinga lengxolo eliphakathi kunye nomgama wokumamela owahlukileyo. Ukuba zonke iindawo zinyanzeliswa kwinqanaba elinye lokuvumelanisa, abanye abaphulaphuli baya kuva isandi esigqithisileyo ngelixa abanye bengayiqondi imiyalelo. Icebo lokwahlulahlula indawo lenza kube lula ukugcinwa kuba iimpazamo zinokuhlulwa ngokukhawuleza.

Kwiiprojekthi apho imiyalezo yokhuseleko ibalulekile, isithethi esimelana nemozulu kufuneka sixhase amabinzana acacileyo engxamiseko kunye nenkqubo yovavanyo eqinisekisiweyo. Ukuhlolwa rhoqo kokuvakala kunye nokuhlolwa rhoqo kwezitywino, izibiyeli, kunye nokufakwa kwentambo yinxalenye yokuthembeka kwexesha elide, kungekhona izinto ezongezelelweyo zokuzikhethela.

1. Imaphu yendawo nganye yokumamela ngomgama, inqanaba lengxolo, kunye nokuphakama kwendawo yokumisa.
2. Khetha indlela yokulawula uphondo ukuze unciphise isandi esichithwayo ngaphandle kwendawo ekujoliswe kuyo.
3. Yenza ubungakanani be-amplifier ukuze ikwazi ukuthwala umthwalo oqhubekayo kunye ne-headroom ephezulu.
4. Cacisa umlinganiselo we-IP, ukumelana nokugqwala, kunye nezixhobo zokufakela kunye.
5. Cwangcisa amaxesha okuvavanya izitywini, izibophelelo, kunye neentambo.

Ukuthelekisa ukhetho oluqhelekileyo lwezithethi ezimelana nemozulu kubathengi beprojekthi

Abathengi beprojekthi kufuneka bathelekise ukusetyenziswa kwezixhobo ngaphambi kokuba bathelekise amanani ekhathalogu.

Kwiinkqubo zokubhengeza zangaphandle, iindlela ezintathu ezibanzi zesithethi zixhaphakile: izithethi ze-horn, izithethi zekhabhinethi, kunye neeyunithi ezikhuliswe ngokupheleleyo. Izithethi ze-horn zilungele ukukrolwa kwentetho kunye nokugubungela umoya ovulekileyo. Izithethi zekhabhinethi zinokuvakala zigcwele kodwa zihlala zingasebenzi kakuhle xa zikhutshwa ixesha elide ngaphandle. Iimveliso ezizikhulisayo zinokwenza kube lula ukufakela kwiindawo ezincinci kodwa zinokuguquguquka kancinci kwiinkqubo ezinkulu ezisasazwayo. Kwinkqubo ye-PA yemizi-mveliso, ukhetho olungcono luhlala luhambelana ne-topology yesiza sakho kunye nesicwangciso senkonzo.

Ukuba uphonononga iintsapho zemveliso kwiikhathalogu yemveliso, thelekisa indawo ekujoliswe kuyo kuqala, uze emva koko ulinganisele i-acoustic spec, uze emva koko wakheke ngokwasemzimbeni. Loo myalelo udla ngokunciphisa iimpazamo zokuthenga. Umzekelo, iyunithi eyenzelwe iindlela zokungena ezikhuselekileyo isenokungafaneleki kwiyadi evulekileyo ngokupheleleyo, nokuba inani lesandi libonakala linomtsalane. Ingqiqo efanayo iyasebenza kulondolozo: ukufikelela okulula kunye nezixhobo ezithathelwa indawo zihlala zibaluleke ngaphezu kokuphuma okuphezulu kancinci.

Uluhlu lokuthenga olusebenzayo kwiiprojekthi zenkqubo ye-PA yesithethi se-horn yangaphandle

Uluhlu olufutshane lokuhlola luthintela ukutshintshwa okubizayo emva kokufakwa.

Ngaphambi kokuba uthenge, qinisekisa ukuba isithethi esimelana nemozulu sifanelekile kwindawo echanekileyo yokufakela, ukuvezwa okulindelekileyo, kunye nomgangatho wesignali. Buza ukuba iyunithi yenzelwe na ukufakelwa eludongeni, kwipali, okanye kwisilingi. Qinisekisa ukuba indawo ebiyelweyo ilinganiswe ukuba isebenzise imvula ethe ngqo okanye ikhuselwe kuphela ngaphandle. Jonga ukuba inkqubo yesixhumi kunye neendawo zokungena zekhebula ziyalungiselelwa na ebaleni. Ukuba iprojekthi ikufutshane nonxweme, gxininisa kwizixhobo ezimelana nokugqwala kwaye ubuze malunga nobungqina bovavanyo lokuvezwa kwetyuwa.

1. Qinisekisa ireyithingi ye-IP kunye nereferensi yovavanyo.
2. Qinisekisa ukuba i-70V okanye i-100V iyahambelana.
3. Hlanganisa ukusasazwa kwexilongo kwindawo yokumamela.
4. Jonga iimpompi zamandla kunye nokubalwa komthwalo we-amplifier.
5. Hlola izibiyeli, i-fastener, kunye nezinto ze-cable gland.
6. Cela isikhokelo sokufikelela kulondolozo kunye nokufumaneka kwezixhobo ezitsha.

Imibuzo ebuzwa rhoqo malunga nokukhetha izithethi ezingangeni manzi kwiiprojekthi zenkqubo ye-PA yesipikha seempondo zangaphandle

Yintoni umahluko phakathi kwesithethi esingangeni manzi kunye nesithethi esingangeni manzi?

Isithethi esimelana nemozulu senzelwe ukumelana nemvula, uthuli, i-UV, kunye notshintsho lobushushu bangaphandle, ngelixa ukungangeni manzi kudla ngokuthetha ukuba inqanaba lokumelana nokuchatshazelwa ngamanzi ngokuthe ngqo liphezulu. Ekuthengeni, indlela ekhuselekileyo kukucela umlinganiselo we-IP endaweni yokuxhomekeka kwigama elithi ukumelana nemozulu kuphela.

Kutheni izithethi zeehorni zixhaphakile kwiinkqubo ze-PA zangaphandle?

Izithethi zexilongo zixhaphakile kuba zivelisa intetho ngokufanelekileyo kumgama omde nakwiindawo ezinengxolo. Ukuphuma kwazo kwicala kunceda ukuphucula ukuqondwa kweeyadi ezivulekileyo, iindawo zokupaka iimoto, nakwiindawo ezijikeleze imizi-mveliso.

Ingaba i-IP66 yanele ukusetyenziswa ngaphandle?

I-IP66 idla ngokuba sisiseko esiqinileyo sezicelo ezivezwa ngaphandle kuba ibonisa ukhuseleko olungenathuli kunye nokuxhathisa iijethi zamanzi ezinamandla phantsiI-IEC 60529Nangona kunjalo, ukugqwala konxweme, ukungcangcazela, kunye nokuvezwa yi-UV kunokufuna izinto ezongezelelweyo kunye nezixhobo.

Ngaba kufuneka ndikhethe i-70V okanye i-100V kwinkqubo ye-PA yangaphandle?

Zombini zisetyenziswa kakhulu kwiindlela zoyilo ze-PA ezisasazwe ngokubanzi. Ukhetho olufanelekileyo luxhomekeke kwindlela yokusebenza yengingqi, ukufumaneka kwe-amplifier, ukucofa isithethi, kunye nomgama wekhebula uwonke. Isitshixo kukugcina inkqubo ihambelana ukusuka kwi-amplifier ukuya kwi-speaker taps.

Isithethi esingaphandle sifanele sibe nesandi esingakanani esimelana nemozulu?

Akukho nombolo inye yesandi esiqhelekileyo kuba ingxolo yendawo kunye nomgama ophakathi kubalulekile. Injongo eluncedo yokucwangcisa kukugcina intetho ingaphezulu kwe-10 dB ngaphezu kwengxolo yangasemva apho kunokwenzeka khona, kunye ne-horn direction esetyenziselwa ukugxila isandi apho abaphulaphuli bakhoyo.

Yeyiphi imigangatho endifanele ndiyicele xa ndithenga isithethi esimelana nemozulu?

Cela ireferensi yovavanyo lwe-corrosion efanelekileyo, imigangatho ye-IP efanelekileyo efana naleI-ASTM B117 or I-ASTM G85, kunye nolwimi lokulinganisa olucacileyo oluhambelanaIiyunithi ze-NIST SI.

Ngaba isithethi esinye esinophondo singagubungela yonke indawo yangaphandle?

Ngamanye amaxesha, kodwa akuthembekanga. Ubungakanani bokugubungela buxhomekeke kwijiyometri, inqanaba lengxolo, ukuphakama kokuxhoma, kunye nokuqondakala okufunekayo. Iiprojekthi ezininzi zangaphandle zingcono zincediswa zizithethi ezininzi ezijolise kakuhle kuneyunithi enye enkulu.