Analog Transmission - The Backbone of Industrial Communication
Analog transmission ndiyo nzira yechinyakare yekusvitsa ruzivo. Kusiyana nemumwe wayo wedhijitari, inoshandisa chiratidzo chinoenderera kumiririra ruzivo. Mumaindasitiri ekudzora masisitimu, izvi zvinowanzokosha nekuda kwekuda kwekupindura chaiko-nguva uye yakatsetseka data shanduko.
Kubuda nekushandiswa kwehunyanzvi hwekudzora maindasitiri kwakaunza shanduko yechitatu yemaindasitiri, iyo isina kungovandudza zvakanyanya kushanda zvakanaka asi yakachengetedza huwandu hwevashandi pamwe nezvimwe zvinodhura. Kudzora kwemaindasitiri kunoreva maindasitiri otomatiki kutonga, izvo zvinoreva kushandiswa kwekombuta tekinoroji, microelectronics tekinoroji, uye nzira dzemagetsi kuita kuti kugadzirwa nekugadzira fekitori kuve otomatiki, inoshanda, chaiyo, uye inodzoreka uye inooneka. Nzvimbo huru dzepakati pekutonga kwemaindasitiri dziri munzvimbo dzakakura dzemagetsi, aerospace, kuvaka madhamu, maindasitiri ekudzora tembiricha yekudziya, uye ceramics. Iine zvakanakira zvisingadzoreki. Zvakadai se: Chaiyo-nguva yekutarisisa yemagetsi grid inoda kuunganidza huwandu hukuru hwe data data uye kuita yakazara kugadzirisa. Iko kupindira kweindasitiri yekudzora tekinoroji inofambisa kugadziridzwa kwehuwandu hwakawanda hweruzivo.
Iyo Anatomy yeAnalog Transmission
Analog kutapurirana kunosanganisira kushandiswa kwemhando inoenderera yehukoshi. Inoshandura huwandu hwemuviri, senge tembiricha kana kudzvanywa, kuita voltage inowirirana kana masaini azvino. Kuenderera mberi uku kunopa humbowo, zvichiita kuti analog kutapurirana kuve kuenda-kune maindasitiri uko kurongeka kwakakosha.
Analog quantity inoreva huwandu hunochinja hunoramba huchienderera mune imwe nhanho; ndiko kuti, inogona kutora chero kukosha (mukati meiyo kukosha siyana) mukati mehumwe danho (tsanangudzo domain). The digital quantity idijitari yakawanda, kwete inoenderera shanduko yehuwandu, uye inogona chete kutora akati wandei akasarudzika, akadai sebhinary digital variables. inogona chete kutora maitiro maviri.
Sei Kusarudza Analog Transmission?
Analog kutapurirana kunogona kuve nzira inobatsira yekufambisa ruzivo nekuda kwezvikonzero zvakati:
1. Natural Form:Zvizhinji zvechisikigo zviitiko analogi, saka hazvidi kushandurwa kwedhijitari isati yatapurirana. Semuenzaniso, maodhiyo uye masaini masaini ane zvakasikwa analogi.
2. Hardware Nyore:Analog transmission masisitimu, akadai seFM/AM redhiyo masisitimu, anowanzo kuve akareruka uye asingadhure pane edhijitari masisitimu. Izvi zvinobatsira pakumisikidza masisitimu uko mutengo uye nyore zviri zvinhu zvikuru.
3. Lower Latency:Analog masisitimu anogona kazhinji kupa mashoma latency pane edhijitari, sezvo asingade nguva yekukodha uye decoding chiratidzo.
4. Smoothing Errors:Analog masisitimu anogona kutsvedzerera mamwe marudzi ezvikanganiso nenzira isingakwanise dhijitari masisitimu. Semuyenzaniso, mudhijitari system, chikanganiso chimwechete chinogona kukonzera dambudziko rakakura, asi mune analogi system, ruzha rudiki runongokonzera huwandu hudiki hwekukanganisa.
5. Analogi Kutapurirana Pamusoro Hombe Distance:Mamwe marudzi emasaini eanalogi, akadai semasaisai eredhiyo, anogona kufamba madaro mahombe uye haana kuvharika zviri nyore semamwe masaini edhijitari.
Nekudaro, zvakakoshawo kutaura zvipingamupinyi zveanalog kutapurirana. Semuenzaniso, ivo vanonyanya kukanganiswa nekurasikirwa kwemhando nekuda kweruzha, kuderedzwa, uye kukanganisa, zvichienzaniswa nemasaini edhijitari. Ivo zvakare vanoshaya epamberi maficha edhijitari masisitimu, sekuona kukanganisa uye kugona kugadzirisa.
Sarudzo pakati peanalog uye dhijitari kuendesa pakupedzisira zvinoenderana nezvinodiwa chaizvo zvekushandisa.
Tembiricha, humidity, pressure, flow rate, etc. kuyerwa nesensor zvese zviratidzo zveanalogi, ukuwo anowanzo kuvhurika uye anowanzo kuvharwa ari masaini edhijitari (anonziwo digitaalinen). Transmitter zviratidzo zvinowanzova zviratidzo zveanalogi, izvo zviri 4-20mA ikozvino. kana 0-5V, 0-10V voltage. Vashandi vekuvaka vanosarudza kushandisa 4-20mA kufambisa masaini eanalogi mumamiriro ekutonga kwemaindasitiri, uye kashoma kushandisa 0-5V uye 0-10V.
Chikonzero chii?
Chekutanga, kazhinji kukanganiswa kwemagetsi mumafekitori kana nzvimbo dzekuvaka kwakakomba, uye masaini emagetsi anotapukirwa nekukanganiswa kupfuura masaini aripo. Uyezve, kureba kwekutapurirana kwechiratidzo chazvino kuri kure kupfuura kureba kwekutenderera kweiyo voltage chiratidzo uye haizokonzerese kuderedzwa kwechiratidzo.
Chechipiri, Chiratidzo chemazuva ano chezviridzwa zvakajairika ndeye 4-20mA (4-20mA inoreva kuti zvishoma ikozvino ndeye 4mA, iyo yakawanda ikozvino 20mA) .Iyo yakaderera 4mA inoshandiswa nokuti inogona kuona nzvimbo yekuvhara. Iyo yakanyanya 20mA inoshandiswa kuzadzisa zvinodiwa nekuputika-uchapupu, nekuti iyo spark inogona simba inokonzerwa ne-on-off ye20mA ikozvino chiratidzo haina kukwana kupisa nzvimbo inoputika yegasi rinopisa. Kana ikadarika 20mA, pane njodzi yekuputika. Zvakadai sekuti kana gasi sensor inoona magasi anopisa uye anoputika akadai secarbon monoxide nehydrogen, kutarisisa kunofanirwa kubhadharwa kudzivirira kuputika.
Pakupedzisira, Kana uchitumira chiratidzo, funga kuti pane kuramba pane waya. Kana kufambisa kwemagetsi kuchishandiswa, imwe kudonha kwemagetsi kunogadzirwa pawaya, uye chiratidzo pamagumo ekugamuchira chinoburitsa chimwe chikanganiso, chinozotungamira kuyero isina kururama. Naizvozvo, mumaindasitiri ekudzora masisitimu, yazvino chiratidzo chekufambisa chinowanzoshandiswa kana chinhambwe chakareba chiri pasi pe100 metres, uye 0-5V voltage chiratidzo chekufambisa chinogona kushandiswa kutapurirana chinhambwe chipfupi.
Muindasitiri yekudzora sisitimu, iyo transmitter inonyanya kukosha, uye nzira yekufambisa yeanorodha analogi chinhu chakakosha kufunga. Zvinoenderana neyako yekushandisa nharaunda, kuyerwa kwechiyero uye zvimwe zvinhu, sarudza inoenderana transmitter analog yekubuda modhi kuti uwane kuyerwa kwakaringana uye kubatsira basa rako. Tine yakanakisa porous metal element/stainless simbi element. tembiricha uye humidity sensor / probe, gasi aramu kuputika-uchapupu hwekugara chigadzirwa uye sevhisi. Kune akawanda saizi yesarudzo yako, iyo yakagadziridzwa yekugadzirisa sevhisi inowanikwawo.
Nguva yekutumira: Zvita-12-2020
