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Amathrendi amane amakhulu ekuthuthukisweni kobuchwepheshe besistimu yokulawula ye-DCS esikhathini esizayo
2023-12-08
Uhlelo lwe-DCS luwuhlelo lokulawula oluzenzakalelayo olukhulu ngaphandle kwe-PLC. Isetshenziswa kabanzi embonini yamakhemikhali, amandla ashisayo neminye imikhakha. Kodwa-ke, isidingo sobuchwepheshe be-automation ekukhiqizeni senziwe ngcono nakakhulu. Uhlelo lwendabuko lwe-DCS alusakwazi ukuhlangabezana nezidingo futhi ludinga ukuthuthukiswa. Uhlelo lwe-DCS luwuhlelo lokulawula oluzenzakalelayo olusebenzisa amakhompuyutha amaningi ukuze lulawule izihibe eziningi zokulawula ohlelweni lokukhiqiza, futhi ngesikhathi esifanayo lingathola idatha emaphakathi, liphathe phakathi nendawo futhi lilawule phakathi nendawo. Uhlelo lokulawula olusabalalisiwe lisebenzisa ama-microprocessors ukulawula isekethe ngayinye ngokwehlukana, futhi lisebenzisa amakhompiyutha okulawula izimboni amancane naphakathi nendawo noma ama-microprocessors asebenza kahle kakhulu ukuze aqalise ukulawula izinga eliphezulu. Ngemuva kokusetshenziswa okuqhubekayo phakathi neminyaka, eminye imikhawulo yokuthuthukiswa kohlelo lwe-DCS embonini ibonakala kancane kancane. Izinkinga ze-DCS zimi kanje: (1) 1 kuya ku-1 isakhiwo. Ithuluzi elilodwa, ipheya eyodwa yemigqa yokudlulisela, idlulisela isignali eyodwa ohlangothini olulodwa. Lesi sakhiwo siholela ekufakweni kwezintambo eziyinkimbinkimbi, isikhathi eside sokwakha, izindleko zokufakwa eziphezulu kanye nokugcinwa okunzima. (2) Ukwethenjwa okungalungile. Ukudluliselwa kwesignali ye-analog akukona nje kuphela okuphansi ngokunemba, kodwa futhi kusengozini yokuphazamiseka. Ngakho-ke, izinyathelo ezihlukahlukene zithathwa ukuze kuthuthukiswe ukunemba kokunqanda ukuphazamiseka nokudluliswa, futhi umphumela uba izindleko ezikhulayo. (3) Ngaphandle kokulawula. Egunjini lokulawula, u-opharetha akakwazi ukuqonda isimo sokusebenza sensiza ye-analogi, noma alungise amapharamitha ayo, noma abikezele ingozi, okuholela ekutheni isisebenzisi singalawuleki. Akuvamile ukuthi o-opharetha bathole amaphutha ensimbi yasensimini ngesikhathi. (4) Ukusebenzisana kabi. Nakuba amathuluzi e-analog ahlanganise izinga lesignali engu-4~20mA, amapharamitha amaningi obuchwepheshe asanqunywa umkhiqizi, okwenza amathuluzi emikhiqizo ehlukene angakwazi ukushintshaniswa. Ngenxa yalokho, abasebenzisi bathembele kubakhiqizi, abakwazi ukusebenzisa amathuluzi afanayo anesilinganiso esingcono kakhulu sokusebenza nenani lamanani, ngisho nesimo lapho abakhiqizi abangabodwana belawula imakethe. isiqondiso sokuthuthukiswa Ukuthuthukiswa kwe-DCS sekuvuthiwe futhi kusebenza. Akungabazeki ukuthi kuseyinkomba yokusetshenziswa nokukhethwa kwezinhlelo ezishintshayo zezimboni okwamanje. Ngeke ihoxe ngokushesha esigabeni sokulawulwa kwenqubo yasensimini ngokuvela kobuchwepheshe be-fieldbus. Ibhekene nezinselele, i-DCS izoqhubeka nokuthuthuka ngokuhambisana namathrendi alandelayo: (1) Ukuthuthukela ekuqondeni okuphelele: ukuthuthukiswa kwezixhumanisi zokuxhumana kwedatha ezisezingeni kanye namanethiwekhi okuxhumana kuzokwakha uhlelo olukhulu lwemishini yokulawula yezimboni njengama-loop regulators ahlukahlukene (amaningi), i-PLC, i-PC yezimboni, i-NC, njll. ukuze kuhlangatshezwane nezidingo. wokuzenzakalelayo kwefekthri futhi uzivumelanise nenkambo evamile yokuvuleleka. (2) Ukuthuthukela ekuhlakanipheni: ukuthuthukiswa kwesistimu yedathabheyisi, umsebenzi wokucabanga, njll., ikakhulukazi ukusetshenziswa kwesistimu yesisekelo solwazi (KBS) kanye nohlelo lochwepheshe (ES), olufana nokulawula ukuzifundela, ukuxilongwa okukude, ukuzenzela ngokwakho, njll., i-AI izobonakala kuwo wonke amazinga e-DCS. Ngokufanayo ne-FF fieldbus, amadivaysi ahlakaniphile asekelwe ku-microprocessor-based njenge-I/O ehlakaniphile, isilawuli se-PID, inzwa, i-transmitter, i-actuator, isikhombimsebenzisi somshini womuntu, kanye ne-PLC ziye zavela ngokulandelana. (3) I-DCS yezimboni I-PC: Sekuyinkambiso enkulu ukwakha i-DCS nge-IPC. I-PC isiphenduke isiteshi sokusebenza esivamile noma umshini we-node we-DCS. I-PC-PLC, i-PC-STD, i-PC-NC, njll. amavulandlela e-PC-DCS. I-IPC isiphenduke inkundla yehadiwe ye-DCS. (4) Ubungcweti be-DCS: Ukuze kwenziwe i-DCS ifaneleke kakhulu isicelo emikhakheni eyahlukene, kuyadingeka ukuqonda kabanzi inqubo nezidingo zokusetshenziswa kwemikhakha ehambisanayo, ukuze kwakhiwe kancane kancane njengamandla enuzi i-DCS, isiteshi esincane se-DCS, ingilazi. I-DCS, usimende DCS, njll.