Pfupiso yeTL;DR

Masisitimu eintercom evhidhiyo ane waya mbiri anotumira vhidhiyo, odhiyo, uye simba kuburikidza netambo imwe chete yakamonyoroka, zvichiita kuti kuiswa kuve nyore kana tichienzanisa nedzimwe nzira dzewaya dzakawanda. Zvakanakira zvikuru zvinosanganisira kuderedzwa kwemitengo yetambo (40% yakaderera pane masisitimu ekare), nyore kugadzirisa zvivakwa zviripo, uye kuenderana nezvivakwa zvekare. Zvipingamupinyi zvinosanganisira zvirambidzo zvedaro (zvinowanzova mamita 100-150), kuderera kwehunhu hwevhidhiyo zvichienzaniswa neMasisitimu eIP, uye kugona kukura zvishoma.

Nhanganyaya: Kunzwisisa Tekinoroji yeVhidhiyo yeIntercom yeWaya mbiri

Sisitimu yeintercom yemavhidhiyo ine waya mbiri inomiririra dhizaini yekutaurirana inobatanidza kutumira vhidhiyo, odhiyo, uye simba patambo imwe chete yakamonyoroka. Iyi tekinoroji inovhara musiyano uripo pakati pemasisitimu ekare eanalog nemhinduro dzemazuva ano dzinobva kuIP.

Sekureva kweConsumer Technology Association (CTA), masisitimu maviri-waya anotora 28% yemusika weintercom wekugara, uyo unokosheswa pamadhora mabhiriyoni matatu nehafu emadhora pasi rose muna 2026.

Tekinoroji iyi inoshandisa kugadzirisa masaini edhijitari kuti iwedzere data rakawanda pamatanho maviri. Kusiyana nemasisitimu echinyakare ane waya ina kana kuti 6-waya anoda nzira dzakasiyana dzemavhidhiyo, odhiyo, simba, uye masaini ekudzora, masisitimu ane waya mbiri anoshandisa frequency division multiplexing kana digital encoding kuti abatanidze mabasa aya.

Mabhenefiti e2-Wire Video Intercom Systems

Kuiswa Kwakareruka uye Kuderedzwa Kwemari Yevashandi

Kuoma kwekuisa kunoderera zvakanyanya nehurongwa hwemawaya maviri. Sangano reNational Electrical Contractors Association (NECA) rinofungidzira kuti vashandi vanochengetedza mari ne35-45% zvichienzaniswa nehurongwa hwemawaya akawanda.

Vagadziri vemagetsi vanofambisa tambo imwe chete kubva kuchikamu chepakati kuenda kuchiteshi chimwe nechimwe, zvichideredza zvinodiwa zvemugero uye kupinda kwemadziro.

Kuenderana neZvivakwa Zviripo

Masisitimu mazhinji ane waya mbiri anoshandisa waya dzefoni dzakajairika (Cat3) kana wiring dzakatwasuka dzinowanikwa muzvivakwa zvakavakwa mushure ma1980. Kuenderana uku kunobvisa kudiwa kwekubatanidza waya dzese panguva yekuvandudza.

Masisitimu aya anowanzo shanda nemasuo aripo uye mamonita emukati, zvichichengetedza mari inowanikwa mumidziyo yekare.

Kushanda Nemari Yakawanda Pakuisa Zvidiki Nepakati

Mari yezvinhu zvemasystem ane waya mbiri avhareji ye $0.80-1.20 pa futi imwe neimwe zvichienzaniswa ne $1.50-2.50 yekubatanidza mawaya e coaxial kana eEthernet.

Kune chivako chemafurati chine mayuniti makumi mashanu, mutsauko uyu unoshanduka kuita $2,000-3,500 mukuchengetedza tambo chete. Kana zvikabatanidzwa nekuderedzwa kwemaawa ekushanda, mari yese yekuisa inoderera ne30-40% zvichienzaniswa nedzimwe nzira dzakafanana dzeIP-based.

Zvipingamupinyi uye Zvaunofanira Kufunga Nezvedu

Zvipingamupinyi zveKureba uye Hunhu hweChiratidzo

Masisitimu ane waya mbiri ane miganhu yekureba. Kufamba kwetambo kwakanyanya kunowanzova pakati pemamita zana kusvika zana nemakumi mashanu zvichienderana negeji yewaya uye zvinodiwa nesisitimu.

Kupfuura madaro aya, kudzikira kwemasaini kunokanganisa kunaka kwevhidhiyo uye kuvimbika kwesystem. Muyero weTIA-568 unopa gwara rekusarudza tambo kuderedza kudzikira kwenzvimbo.

Miganhu Yekugadzirisa Mavhidhiyo

Zvirambidzo zvebandwidth pamasisitimu ane waya mbiri zvinoganhurira resolution yevhidhiyo kusvika ku480p-720p mumabasa mazhinji. Kunyange zvazvo zvakakwana kuti munhu azive mushanyi, resolution idzi hadzina kukwana 1080p kana 4K inopiwa nemasisitimu ane IP-based.

Kuziva kumeso uye kubata chitarisiko chemotokari zvinoda kuti chionekwe zvakanaka uye chionekwe zvakanaka zvisingawanikwe kuburikidza netekinoroji yewaya mbiri.

Matambudziko ekuwedzera uye kubatanidza

Kuwedzera kwehuwandu hwemayuniti akatarwa nemugadziri kunoda kutsiviwa kwesisitimu pane kuvandudzwa kwakawedzerwa. Kubatanidzwa nehurongwa hwechitatu hwekupinda, CCTV, kana masisitimu ekutarisira zvivakwa kunoramba kuri kushoma kana tichienzanisa nedzimwe nzira dzeIP dzinoshandisa maprotocol akajairwa seONVIF kana SIP.

Kuenzanisa Kwehunyanzvi: 2-Wire vs IP Video Intercom Systems

Maitiro Akanakisisa Ekuisa MaIntercom Emavhidhiyo E-2-Waya

Kusarudzwa kweWaya uye Zvinodiwa zveGauge

Sarudza tambo ye 18-22 AWG yakamonyoroka kuti imhanye pasi pemamita zana. Pamadaro ari kusvika pamamita zana nemakumi mashanu, shandisa 16 AWG kuderedza kudonha kwemagetsi.

Waya yakavharwa inoderedza kukanganiswa kwemagetsi munzvimbo dzine mwenje we fluorescent kana michina yemota. Chinyorwa cheNEC 725 chinopa zvinodiwa zvekodhi zvemaseketi ane simba reClass 2 anowanzo shandiswa mumashandisirwo eintercom.

Kufunga NezvePolarity uye Kugumisa

Chengetedza polarity yakagadzikana panguva yese yekuisa. Kudzosera maconductors chero kupi zvako kunodzivirira kushanda kwesystem.

Shandisa waya ine mavara akasiyana (kazhinji katsvuku/dema kana bhuruu/chena) kuti uve nechokwadi chekuti yakabatana zvakanaka. Gumisa kubatana uchishandisa zvinobatanidza zvakatarwa nemugadziri kana mabhuroko emagetsi akatarwa kuti ashandiswe pageji yewaya.

Kuverenga Kwemagetsi Nekudonha Kwemagetsi

Verenga kudonha kwemagetsi uchishandisa fomula:

VD = (2 x L x I x R) / 1000

Kupi:

• L = kureba kwetambo mutsoka
• I = magetsi ari mumaampere
• R = kuramba waya pa 1000 tsoka

Chengetedza voltage pachiteshi mukati me10% yezvinodiwa.

Mibvunzo Inowanzo bvunzwa

Ndingakwanisa here kusimudzira kubva pa analog kuenda pa 2-waya ndisina kutsiva waya dzese?

Ehe, masisitimu ane waya mbiri anowanzo shandisa waya dzefoni kana dzeintercom dziripo. Tarisa mamiriro etambo uye kuti gauge inoenderana sei usati waenderera mberi. Masisitimu anoshandisa Cat3 kana twisted pair cable akaiswa mushure ma1990 anowanzo tsigira tekinoroji ye waya mbiri pasina kudzoreredza waya.

Nhamba yepamusoro yezviteshi zvinotsigirwa ndeyei?

Kugona kushanda kunosiyana zvichienderana nemugadziri uye magadzirirwo ehurongwa. Masisitimu epakutanga anotsigira zviteshi 8-16. Masisitimu epamusoro-soro anokwana mayuniti 50-100. Kupfuura zvinodiwa nemugadziri kunokonzera zvikanganiso zvekutaurirana uye kudzikira kwemhando yevhidhiyo.

Masisitimu ane waya mbiri anotsigira kurekodha vhidhiyo here?

Mamwe masisitimu ane waya mbiri ane nzvimbo dzemakadhi eSD dzekurekodha panzvimbo huru. Kugona kurekodha mumakore kunoda masisitimu ane mamodule ekubatanidza network. Kurekodha nguva dzose kunokanganisa bandwidth yesisitimu uye kunogona kuderedza kunaka kwevhidhiyo panguva chaiyo.

Ko ma intercom ane waya mbiri anogona kubatana nemakiyi emagetsi here?

Mazhinji mamonita emukati ane waya mbiri ane marelay outputs ekushanda kwekuburitsa magonhi. Batanidza magetsi kana magineti makiyi uchishandisa magetsi akasiyana akaenzana nehukuru hwemagetsi anodhonza mudziyo unokiya. Simbisa kuti voltage inoenderana sei (kazhinji 12VDC kana 24VDC).

Ndingagadzirisa sei matambudziko emhando yevhidhiyo?

Tarisa chiyero chetambo kuti uone daro rekuisa. Yera voltage pachiteshi kuti uone kuti magetsi asvika zvakanaka here. Tarisa kuti ma connections acho haana ngura here kana kuti haana kusimba. Bvisa tambo dze intercom kubva pawaya dzine voltage yakawanda ne 32 inches kudzivirira kukanganiswa.

Mhedziso: Kusarudza Tekinoroji Yakakodzera

Masisitimu eintercom evhidhiyo ane waya mbiri anopa mhinduro dzinoshanda dzekuisa dzimba nemabhizimisi madiki uko kushanda zvakanaka kwemari uye kuisa kwakapfava kunopfuura zvinodiwa zvemhando yepamusoro.

Tekinoroji iyi inobudirira mukugadzirisa mashandisirwo uye nharaunda dzine zvivakwa zviripo zve twisted pair. Kunzwisisa zvipingamupinyi kunogonesa kuita sarudzo dzakagadzirwa neruzivo kana uchienzanisa dzimwe nzira dze 2-waya pane masisitimu akavakirwa pa IP.

Wagadzirira kuvandudza sisitimu yako yeintercom here?Ongorora yeduMhinduro dzeintercom dzevhidhiyo dzeIP dzewaya mbiri or taura nenyanzvi dzedukuti muwane kubvunzana mahara.