Ukunemba okuphezulu kanye ne-electronic multihead weigher ehlakaniphile

Umbhali: Smartweigh–I-Multihead Weighter

1 Isingeniso Ngokuthuthuka okusheshayo kobuchwepheshe besimanje bolwazi lwe-elekthronikhi kanye nobuchwepheshe bolwazi lwe-elekthronikhi, izikali ze-electronic multihead zisetshenziswe kabanzi ezimbonini ezihlukahlukene zezenhlalo nezomnotho. Imisebenzi yefomula neminye imisebenzi ithandwa kakhulu ngamakhasimende. Ukhiye we-intelligent electronic multihead weigher wakhiwe ama-softwares amabili amakhulu wesistimu.——Uhlelo lokuhlola kanye nokucubungula idatha kanye nekhasi lobuchwepheshe bokusebenzisana nekhompyutha yomuntu lakhiwe uhlelo lokuhlola kanye nendlela yokucubungula idatha. Imiphumela elinganisiwe iboniswa ngaphansi kolawulo lwawo wonke umuntu, njengolwazi nokukopisha. I-athikili yethula ngokuningiliziwe ingxenye yokuhlola yesofthiwe yesistimu, okuhlanganisa ukulinganiswa okuzenzakalelayo kwesifunda sokuphakelwa kwamandla kwenzwa. Kusabela ukulinganisa kwenzwa yesikimu sedizayini nomsebenzi wayo omaphakathi we-cpu okabili. 2 Ukuxhumana komklamo wohlelo jikelele. Isihluthulelo socwaningo lwesayensi yindlela yokuqedela uhlelo oluhlakaniphile lwesofthiwe yesistimu. Uhlelo lokuqapha isisindo se-multihead lakhiwa ikakhulukazi i-sensor yokusebenza yeamplifier, ukutholwa kwedatha (i-analog/digital conversion) isekethe yokuphakelwa kwamandla, izingxenye zokulawula eziphakathi nendawo, isekethe yokuphakelwa kwamandla, isinxephezelo sangaphandle kanye nokushintsha isicelo sokuphakelwa kwamandla.

Umsebenzi wesekethe yokuphakelwa kwamandla uwukushintsha inombolo yenani lesisindo ngenombolo kagesi eguquguquka kancane esebenzayo ngokuvumelana ne-flap yokudlulisa i-resistance gauge, futhi iyinwebe kudatha ye-voltage esebenzayo eyamukelwe i-chip efanelekile yokuguqulwa kwe-analog/digital. Isignali futhi wenze ukuguqulwa kwe-A/D, iphutha lesistimu yephaneli yensimbi libangelwa ikakhulukazi yile ngxenye, ngakho-ke uhlelo lokuklama lwale ngxenye luhlobene nokunemba kwayo yonke isofthiwe yesistimu. Iyunithi yokucubungula emaphakathi ayinasibopho sokusebenza nokusebenza kwayo yonke isofthiwe yesistimu, futhi yenza Indlela yokucubungula idatha, ukulinganisa okuzenzakalelayo, ukuguqulwa okuzenzakalelayo kwenqubo ye-It, ukushintshwa kwedivayisi yokudlulisa isakhiwo esabelayo Isekhethi yokuphakelwa kwamandla efeza imiyalelo nokudluliswa kwedatha. maphakathi ne-CPU yesofthiwe yesistimu yekhasi. Isofthiwe yesistimu yokushintsha amandla kagesi inikeza uhlelo oluhle kakhulu lokuphakelwa kwamandla kanye nesistimu yokusabalalisa ukuze kusebenze kahle isofthiwe yesistimu, futhi ihlinzeka ngezinga eliphezulu lokunikezwa kwamandla okushintshwa kwebhuloho lokuhambisa amandla. 3 Ukuthuthukiswa kwezingxenyekazi zekhompuyutha Isihluthulelo sokuthuthukiswa kwezingxenyekazi zekhompuyutha zohlelo lokuqapha isikali se-elekthronikhi sihlanganisa izingxenye ezi-3: i-amplifier yokusebenza, i-analog/digital conversion power supply, i-CNC machine Tool resistor I-chip ehlanganisiwe yokucubungula i-amplifier ye-AD525C esetshenzisiwe iboniswa kuMfanekiso 2. Okukhiphayo I-voltage yokusebenza ye-drift drift kufanele ibe ngaphansi kuka-25. I-voltage yokusebenza ye-drift drift kufanele ibe ngaphansi kunesilinganiso sokwenqaba esivamile se-CMR, esingaba ngu-90dB lapho ukuzuza okuvamile kukukhulu kunaleyo yohlelo olukhulu oluhlukanisayo. 0.003^ (uma G=l). Njengesikhulisi somsindo, i-AD524 iqukethe izinto eziphikisa ukunemba okuphezulu ze-tt1WG=l, 10, 100 kanye nenqubo ye-SI yohlobo lwephini engu-1000: yenza ukuphela kwe-JWRG2 kweshubhu kube kukhulu futhi kuhlobene Ngemva kokuba iphinikhodi yokukhetha isiphindaphinda ixhunywe kusengaphambili (ngalesi sikhathi , i-RG1 ayixhunyiwe ekhaleni), umsebenzi wokukhulisa ukukhulisa okuhlobene ungaqedwa. Ngaphandle kwalolu hlobo lwendlela yokufanisa yangaphakathi, lapho inani lenzuzo elishiwo lisuka ku-1 liye ku-100.

Lapho uguquko luqhubeka, i-AD524 nayo inenye indlela yokulawula inani lokuzuza. I-rheostat RG eshelelayo isetshenziselwa ukuxhuma ishubhu 3 (RG2) ye-AD524 processing chip ukuze iphiniwe 16 (RGD), futhi inani lokumelana elihambisana ne-G RG lithi RG-40K/(G-l)3.2 isekethe yokuguqulwa kwedijithali yokuhambisa amandla. Kulolu hlelo lokuklama, i-14-bit multiple S! i-analog/digital converter MAX194 ekhiqizwe yi-MAXIM ikhethiwe. I-chip yokucubungula inohlobo lwe-capacitor-i-DACSPWM, isibambi somlomo wesampula, i-DAC yokulinganisa eyi-10, ukuxhumana kwe-serial nokulawula akugcini nje ngokuba nezici zokusebenza ngesivinini esikhulu, ukunemba okuphezulu, ukusetshenziswa kwamandla, njll. umehluko we-linearity kanye ne-offset, ongalungiswa ngaphandle kokulungiswa kwangaphandle. Gcina konke ukusebenza okungaguquki okungu-18 ngaphakathi kwebanga lokushisa elivumelekile. Izici zokuxhumana kwe-serial zenza i-IB ixhumeke kumabhodi okulawula ama-emblem amaningi ngokushesha, okwenza lula kakhulu isimiso sesekethe yesofthiwe yesistimu. Ngaphezu kwalokho, ilingisa ukunikezwa kwamandla okushintshwa kwe-analog nokushintsha idatha. Isakhiwo sokuhlukaniswa kokunikezwa kwamandla sinciphisa kakhulu ukulimala kokuhlanganisa idatha nomsindo. Izici zayo ezibalulekile yilezi: ukulungiswa kwesikrini amabhithi ayi-14: isizathu sokuchezuka kwesistimu ye-discrete ebalulekile ngu-0.33%, futhi isilinganiso sesignali yedatha kumsindo kanye namafreyimu alahlekile ngu-82dB; 9. Uma i-voltage yokusebenza eyireferensi ingu-+9V, lapho i-voltage yokusebenza yokufaka ishintsha isuka ku-0 iye ku-9V noma i-5 iye ku-+9V, ivolumu yedatha ephumayo iyashintsha isuka ku-OOOOH iye ku-3FFFH. Ukugeleza okuhleliwe kusetshenziselwa ukukhohlisa ukuguqulwa kwevelu yakho yokumelana. Lolu hlelo lokuklama lukhetha umshini we-CNC ongaguquki we-X9241 wethuluzi lomshini we-X9241 owenziwe yi-Xicor Corporation, ohlanganisa ama-resistor array angu-4, uhlu ngalunye oluhlanganisa amamojula angama-63 resistor, Maphakathi nemojula ngayinye nama-node angu-2, kukhona amaphuzu ompompi angapheqululwa yi- imojula yokudonsa. Isikhundla semojula yokudonsa ohlwini kulawulwa ikhasimende ngokuya ngesokhethi yebhasi ye-serial enezintambo ezimbili, futhi ikheli elinemininingwane yengxenye ebonakalayo ngukhiye we-A0 -A3 ekugcineni ukuze kuchazwe.——I-X9241 iqhathanisa ukuhlaziywa kokugeleza kwedatha kokuxhumana kwe-serial nesimo setheminali yokufaka yekheli enemininingwane. Uma zonke izingcezu ezi-4 zamakheli ziphumelele ngokuqhathaniswa, iqembu lizophendula ngempendulo ukukhombisa ukuthi likhethiwe. Futhi i-X9241 ngayinye ine-4 resistor arrays, ngakho-ke imigqa emibili ye-I/O ye-CPU ingasebenza kufika ku-64 resistor array isiyonke, futhi uhlu ngalunye lwe-resistor luhlotshaniswa nerejista yokugcina yokudonsa (WCR) namakheli amane okubhalisa angu-8-bit, konke okungalayishwa noma kufundwe yikhasimende.

Okuqukethwe kwememori yokubala yetheminali yokudonsa (WCR) kuxhaphaza i-bit JL yetheminali yokuhudula kumalungu afanayo aphikisayo. Kusakhiwo somyalo we-X9241, ngaphezu kwenkumbulo yamandla okufunda nokubhala kanye nomyalo wokudlulisa idatha phakathi kwenkumbulo ngayinye, kukhona nomyalo ozovumela i-Drag terminal (WCR) iS/minus a minute unit command INC-WIPER. , isikhathi ngasinye kusetshenziswa i-INC-WIPER, okungukuthi, itheminali yokuhudula izohambisa eyodwa kumamojula angama-63 aphikisayo, ebonisa uhlelo lokuklama lokugeleza kohlelo lokulungisa u-zero Kulula kakhulu, izimiso zesistimu ezi-4 1) Setha kabusha.“Ngemva kokuthi isofthiwe yesistimu ivuliwe, isisombululo sokusetha kabusha siyenziwa kuqala. Uma ungekho umyalo wesistimu ovela ekhasini lobuchwepheshe lokusebenzisana-ikhompyutha yomuntu nekhompyutha, isofthiwe yesistimu izoqala ilayishe igama lesimo ku-EEPROM njalo uma ukulinganisa kuqaliswa, futhi yenze ukuhlonza. Yenza kusebenze amapharamitha ayinhloko ngokuzenzakalelayo njengokusetha ngaphambilini noma indlela yesiteshi ephephile, inani eliyisisekelo, kanye nenzuzo ebekwe ngaphambi kokubekwe eceleni kwangaphambilini. Bese i-CPU inika umyalo wokuguqula iswishi ye-analog enamashaneli amaningi engu-AD7502 iye esiteshini sesine esiphephile, kanye netheminali yokufaka ① kanye ② yensimbi ne-amplifier yemishini AD524 ifinyezwa, futhi i-CPU ilawula ukumelana komshini we-CNC. ithuluzi ngokusho kwesistimu ehlelwe ngaphambilini. Inani lokumelana le-resistor engu-10K kudivayisi X9241 liyashintshwa, futhi ukulungiswa kwe-zero okuzenzakalelayo kwesilawuli esihlelekayo se-value ye-amplifaya yensimbi ye-amplifier kuyenziwa. 2) Ukulungiswa kwezinzwa” Lapho u-opharetha enquma ukuthi i-electronic multihead weigher ayinawo umthwalo, umyalo wokulungiswa kwe-sensor uziro utholwa ngokuya ngekhasi lobuchwepheshe bokusebenzisana kwekhompyutha yomuntu, futhi i-CPU yamukela ulwazi oludluliselwa yi-CPU yekhompyutha yomuntu. ikhasi lobuchwepheshe bokuxhumana ngokusho kokuxhumana kwe-serial. okuqukethwe, hlukanisa inombolo yeqembu lenzwa okufanele ilungiswe, lungisa ithuluzi lomshini we-CNC ukumelana ne-X9241, wenze ukulungiswa kokuqala nokulungiswa okuhle ngokulandelana, futhi isifunda samandla senza umsebenzi wansuku zonke wokulungiswa kwe-othomathikhi yero yenzwa. 3) Ukulungiswa kwe-zero yesofthiwe yesistimu , Ngemva kokuthi i-CPU ilungise i-amplifier yenani lokuzuza kanye nenzwa (njengoba kudingekile) yesilawuli esihlelekayo, i-CPU iqoqa inani elisele lesalalo se-voltage esebenzayo yephoyinti elinguziro ngokuya ngesiguquli se-A/D MAX194 kanye nezitolo. yona ku-EEPROM * linda kuze kube yilapho konke sekujwayelekile Lapho ukala ingane, khipha leli nani futhi. "Uma indawo yemvelo ishintsha kakhulu futhi i-CPU ingawutholi umyalo wokulungisa u-zero, ikhasimende lingakhipha umyalo wokulungisa uziro noma nini nanoma kuphi ngokuya ngekhasi elisebenzisanayo lomshini, ukuze isikali se-electronic multihead sizolinganiswa futhi. Ngaphezu kwalokho, ngephutha ledatha yephoyinti elinguziro elikhiqizwe i-A/D, i-MAX194 izolungisa ngokuzenzakalelayo iphuzu eliwubulima le-A/D phakathi kuka-50ms wangempela wamandla ngakunye. I-CPU ingaphinda isebenzise isiguquli se-A/D MAX194 ukuze yenze ukusebenza kwangempela kokulungiswa "Ngokuvamile, lesi sikali se-multihead sinomsebenzi wokulungisa u-ziro othomathikhi nesikhathi sangempela we-software yesistimu enhle kakhulu" ukuze kuqinisekiswe umsebenzi wayo wokukala onembayo ophezulu.#4 ) Umsebenzi wokusabela kwenzwa. Le software yesistimu inomsebenzi wokusabela wezinzwa oyingqayizivele, okwenza isofthiwe yesistimu ibe nobubanzi obuvame kakhulu 'ukusuka kumakhilogremu ambalwa ukuya emathani amaningi.Ubuchwepheshe obuyinhloko wukulawula okuhlelekayo.Lapho ikhasimende likhetha uhlobo oluthile lwenzwa ebangeni lokulinganisa ngokuya ngelalo okuqondiwe kohlelo lokusebenza, noma uma inzwa ishintshwa ngenxa yamaphutha avamile (noma izinguquko enqubweni yokukhiqiza), ochwepheshe abangochwepheshe bamaphrojekthi wobunjiniyela (noma ikhasimende) badinga kuphela ukuxhuma inzwa nesofthiwe yesistimu, ngokuvumelana nokusebenzisana kwekhompyutha yomuntu. ikhasi lobuchwepheshe, ukhiye umyalo kanye nobubanzi bendawo, bese ubeka i-KG evamile noma ingxenye yethani (ikhodi engekho) kupuleti lesisindo lesofthiwe yesistimu, bese imodeli ye-A/D Isiguquli sedijithali sifunda inani le-mV/kg noma i-mV. /t njengenani eliyisisekelo futhi iyigcine ku-EEPROM yesofthiwe yesistimu ukuze isetshenziswe uma kukalwa.

Ngaphezu kwalokho, i-CPU ibala futhi icacise inani lenzuzo lenani lenzuzo yesilawuli esihlelekayo lethuluzi nesikhulisi semishini engu-AD524 ngokuya ngevelu eyisisekelo namapharamitha ayinhloko obubanzi bokulinganisa adluliswa kusukela kusofthiwe yesistimu yokusebenzelana kwekhompyutha yomuntu. I-CPU isebenzisa i-resistor engu-2K ku-digitometer potentiometer X9241. Yenza isilawuli esilungisekayo sizuze isikhulisi sevelu sisebenze ngaphansi kwezinga lenani lenzuzo entsha, futhi wenze ukulinganisa nokulinganiswa kobubanzi bokulinganisa besithumeli. Ngaphezu kwenani lengqikithi yesisindo sento ekaliwe, ulwazi luphinde lube nochungechunge lwemisebenzi efana nokusethwa kweshaneli yokuphepha, ukusetha inani lesisekelo, ukulungiselelwa kwebhizinisi, ukuhlelwa kwevelu, ukulungisa uziro okuzenzakalelayo kanye nokugcinwa kwesimo sokumisa okuzenzakalelayo. 5.1 Idizayini yokuhlela eyinhloko Imisebenzi ohlelweni lokuqapha isisindo se-multihead yonke yenziwa isebenze ikhasimende ngokuvumelana nephaneli yokusebenza kusofthiwe yohlelo lobuchwepheshe lokusebenzisana kwekhompyutha yomuntu. Ngakho-ke, uhlelo lokuqapha kanye nesofthiwe yesistimu esebenzisanayo ithembise izivumelwano ezilandelayo; ukusebenzisana komuntu nekhompyutha Umsebenzi ngamunye wesofthiwe yesistimu yobuchwepheshe usethiwe ukuze uhambisane nebhayithi, ebizwa ngokuthi igama lomyalo. Lapho iphaneli yokusebenza lenza ukusebenza kwangempela komsebenzi othile, igama lomyalo ohlobene liphushwa lisuka kuhlelo lwesofthiwe yobuchwepheshe bokusebenzisana kwekhompyutha yomuntu, futhi isistimu yokuqapha iyakwamukela ngokunqanyulwa kwesixhumi esibonakalayo (ngoba isistimu yenqubomgomo yokuhlola idinga ukusebenzisa Ukukala nokusunduza isisindo Emva kokusebenza kwangempela komphumela, kungamukelwa kuphela ngendlela yokunqamula kodwa hhayi ngendlela yokubuza), ngemva kokwenza ukuhlonza imiyalelo 'iya kumhlanganisi wento yesevisi ehlobene.

Ngaphezu kwalokho, igama lomyalo liphinde lilayishwe ku-EEPROM, futhi liba yisimo okufanele silayishwe ngemva kokulinganisa. Buyekeza i-EEPROM ekugelezeni kohlelo, bese ulayisha igama lesimo se-EEPROM futhi ngemva kokubuyela ekuqaleni kokugeleza kohlelo oluzimele. Ngemva kokuqaliswa kwesofthiwe yohlelo ngalunye nokusetha kabusha ipharamitha eyinhloko, uhlelo oluzenzakalelayo lwe-zero-adjustment lwe-amplifier lunikezwa kanye, futhi uhlelo lomthombo kufanele lugxume luphume esikalini somjikelezo futhi luqale kusukela ekuqaleni ngemva kwesikhathi ngasinye lapho imbobo yolayini inqanyulwa. Indawo yokulinda yokugeleza kohlelo lokunqanyulwa ukubuyela endaweni yokuqala yokuhlanzwa, ngakho-ke i-bit flag eyengeziwe 7QH isethwe ukuze ihlukanise ukuthi ukuphazamisa ukunqanyulwa kunikwe amandla noma cha. Uma kwenzeka, izogxuma iphume ohlelweni lomjikelezo wokukala bese isetha kabusha amapharamitha amakhulu.”5.2 Umklamo wohlelo oluncane-5. I-XI amplifier ilungiswa ibe uhhafu wesihlanganisi. Okokuqala, i-CPU ikhetha isiteshi sesi-4 sokuvula isikhunta seziteshi eziningi. Umphumela uba ukuthi amatheminali ama-2 wokufaka we-chip amplifier afinyeziwe futhi isignali yedatha ye-voltage yokufaka inguziro, futhi ukukhulisa kwenziwa. Inani lokukhiphayo lemitha lizolungiswa——I-AC bias voltage. Beka ikhanda lokuhudula le-X9241 lapho itheminali engaguquki ye-amplifier ekhipha amandla kagesi we-positive bias, okungukuthi, thumela i-OOH^ kwenye indawo yokudonsa ye-WCRC emelene (inkumbulo yokubala) bese uvumela ukuguqulwa kwe-A/D Ukugeleza kohlelo kungukwengeza nokukhipha ithole ulwazi lwedatha (ngaphezulu kuka-1FFFH) no-1FFFH (1FFFH inani ledatha ephumayo lapho i-voltage yokusebenza ye-ADCMAX194 ilingisa izinga lokungena lokungenayo likaziro, futhi inquma ukuthi umehluko uyinombolo ephozithivu yini, uma iphozithivu Inombolo iphindaphindwa i-WCR kanye ne-KA/D kanye nokusebenza kwangempela kokwengeza nokukhipha, kuze kube umphumela womehluko unguziro noma uyanqanyulwa uma ushintsha usuka kokuphozithivu uye kokubi. Umehluko uncike kokuthi; i-CPU ayidingi ukuthi isethe inombolo ku-WCR kuqala, kodwa inika amandla ngokushesha ukuguqulwa kwe-A/D ukuze kuhlukanise okukhiphayo kwevolumu yedatha nosayizi we-1FFFH. Uma idlula, faka i-WCR futhi kancane kancane wengeze u-1 kumhlanganisi. Bese ufaka i-WCR futhi kancane kancane wehlise isihlanganisi ngo-1.

Lapha, inani le-WCR lishintshwa kancane kancane kwesinye sezihlanganisi ezimbili kuze kube yilapho okukhiphayo kwe-A/D kanye no-1FFFH kuqedwa maduze nje. 5.2.3 Ukugeleza kohlelo lokusetha inani lesisekelo Khetha ukusetha inani lesisekelo kuphaneli yokusebenza yesofthiwe yohlelo lobuchwepheshe olusebenzisanayo bese ucindezela bese ubamba. Ngalesi sikhathi, i-CPU yohlelo lokuqapha ingase ishintshele kusihlanganisi sesixazululo sokunqanyulwa ngenxa yokwamukela isignali yedatha yokuxhumana kwesicelo, futhi ihlonze ukwamukelwa kumhlanganisi wesixazululo sokuqeda. egameni lomyalo wesistimu, bese ufaka isihlanganisi sokusetha inani lesisekelo.

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