Kunyatsojeka uye hungwaru hwemagetsi akawanda ehuremu

Munyori: Smartweigh– Huremu hwemisoro yakawanda

1 Nhanganyaya Nekukura nekukurumidza kwetekinoroji yeruzivo rwemagetsi yemazuva ano uye tekinoroji yeruzivo rwemagetsi, ma "electronic multihead weighers" ave achishandiswa zvakanyanya mumaindasitiri akasiyana-siyana ezvemagariro evanhu nehupfumi. Mabasa e "formula" nemamwe mabasa anonyanya kufarirwa nevatengi. Kiyi ye "intelligent electronic multihead weigher" inoumbwa nesoftware mbiri huru dzesystem.——Sisitimu yekuongorora nekugadzira data uye peji rehunyanzvi hwekudyidzana kwevanhu nekombuta zvinoumbwa nesystem yekuongorora nekugadzira data. Mhedzisiro yakayerwa inoratidzwa pasi pekutonga kwemunhu wese, senge ruzivo uye kukopa. Chinyorwa ichi chinonyanya kusuma chikamu chekuongorora chesoftware yesystem zvakadzama, kusanganisira kuyera otomatiki kwedunhu remagetsi re sensor. Dhizaini ye "design scheme sensor calibration responsive" uye dual cpu middle work yayo. 2 Sisitimu yese yekutaurirana dhizaini. Kiyi yekutsvagisa kwesainzi inzira yekupedzisa system software intelligent system. Sisitimu yekutarisa "multihead weigher" inonyanya kuumbwa ne "sensor operational amplifier", "data acquisition" (analog/digital power supply) power supply circuit, "intermediate control components", "feedback power supply circuit", "external compensation" uye "switching power supply application".

Basa redunhu remagetsi nderekutsiva nhamba yehuremu hwese nenhamba yevoltage inoshanda inoshanduka zvishoma zvichienderana ne resistance strain gauge transmission flap, uye kuikudza kusvika padata revoltage rinoshanda rinogamuchirwa neanalog/digital conversion processing chip yakakodzera. Kana ukaita chiratidzo uye ukaita A/D conversion, kukanganisa kwesystem ye instrument panel kunonyanya kukonzerwa nechikamu ichi, saka dhizaini yechikamu ichi ine chekuita nekunyatsorongeka kwesoftware yese yesystem. Iyo central processing unit haina mhosva yekushanda nekushanda kwesoftware yese yesystem, uye inoita data processing Method, automatic calibration, automatic transformation yeIt process, responsive building transmission device replacement Iyo power supply value inoita instruction and data transmission pakati peCPU ye software ye page system. Iyo switching power supply system software inopa system yakanaka yemagetsi uye distribution yekushanda zvakanaka kwesoftware yesystem, uye inopa power supply bridge switching power supply yepamusoro. 3 Kugadzira Hardware Chinhu chakakosha pakugadzira Hardware ye electronic scale monitoring system chinosanganisira zvikamu zvitatu: operational amplifier, analog/digital conversion power supply circuit, CNC machine tool resistor. Chip AD525C inoshandiswa pakugadzira amplifier inoshandiswa inoratidzwa muMufananidzo 2. Voltage yekushanda ye output temperature drift inofanira kunge yakaderera pane 25. Voltage yekushanda ye temperature drift inofanira kunge yakaderera pane common rejection ratio CMR, inova inenge 90dB kana general gain yakakura kupfuura ye large discrete system. 0.003^ (kana G=l). Se sound amplifier, AD524 ine high-precision resistors ye tt1WG=l, 10, 100 uye 1000 pin-type SI process: ita kuti JWRG2 end ye tube ive yakakura uye ine relative. Mushure mekunge multiplier selection pin yabatanidzwa pachine nguva (panguva ino, RG1 haina kubatana nemhino), basa rekuwedzera re relative magnification rinogona kupedzwa. Kunze kwerudzi urwu rwenzira yekufananidza mukati, kana kukosha kwekuwana kwakatarwa kuri kubva pa1 kusvika pa100.

Kana shanduko yacho yaenderera mberi, AD524 ine imwe nzira yekudzora kukosha kwekuwana. RG inotsvedza inoshandiswa kubatanidza chubhu 3 (RG2) yeAD524 processing chip ku pin 16 (RGD), uye kukosha kwekudzivirira kunoenderana neG RG iRG-40K/(Gl)3.2 digital conversion power supply circuit. Muchirongwa ichi chekugadzira, 14-bit multiple S! analog/digital converter MAX194 inogadzirwa neMAXIM inosarudzwa. Chip yekugadzirisa ine capacitor-type DACSPWM, Sampling mouthpiece holder, 10 calibration DACs, serial communication uye control haina chete hunhu hwe high-speed operation, high precision, power consumption, nezvimwewo, asiwo internal calibration power supply circuit inogadzirisa linearity uye offset difference, iyo inogona kugadziriswa pasina external adjustment. Chengetedza mashandiro ese gumi nemasere akagadziriswa mukati menguva inobvumidzwa yekupisa. Hunhu hwe serial communication hunoita kuti IB ibatanidzwe kune akawanda emabhodhi ekudzora echiratidzo ipapo ipapo, izvo zvinoita kuti zvive nyore kwazvo system software circuit principle. Pamusoro pezvo, inotevedzera analog switching power supply uye data switching. Maumbirwo ekuparadzanisa power supply anoderedzawo zvakanyanya kukuvara kwe data-noise coupling. Hunhu hwayo hukuru ndehwekuti: resolution yechidzitiro i14 bits: chikonzero chekutsauka kwe integral discrete system i0.33%, uye chiyero chedata signal kune noise plus uye ma frames akarasika i82dB; 9. Kana reference working voltage iri +9V, kana input working voltage ichichinja kubva pa0 kuenda pa9V kana 5 kuenda pa +9V, output data volume inochinja kubva paOOOOH kuenda pa3FFFH. Kuyerera kwakarongwa kare kunoshandiswa kugadzirisa shanduko ye resistance value yayo. Iyi design scheme inosarudza non-volatile CNC machine tool resistor X9241 yakagadzirwa neXicor Corporation, kusanganisira 4 resistor arrays, array imwe neimwe inosanganisira 63 resistor modules, Pakati pemodule imwe neimwe ne2 nodes, kune tap points dzinogona kutariswa ne dragging module. Nzvimbo yemodule yekudhonza mu array inodzorwa nemutengi zvichienderana ne soketi yebhazi ine waya mbiri, uye kero yakadzama yechikamu chemuviri iA0 -A3 kiyi mukupedzisira kutsanangura——X9241 inoenzanisa ongororo yekufamba kwedata yekutaurirana kwe serial nemamiriro e terminal yekupinda address yakadzama. Kana mabhiti ese mana e address akadzama akabudirira, bato rinopindura nemhinduro kuratidza kuti rakasarudzwa. Uye X9241 yega yega ine ma resistor arrays mana, saka mitsara miviri yeI/O yeCPU inogona kushanda kusvika ku64 resistor arrays yese, uye resistor array yega yega inobatanidzwa ne drag terminal register (WCR) uye mana 8-bit register address, ese anogona kutakurwa kana kuverengwa nemutengi.

Zviri mukati me drag terminal count memory (WCR) zvinoshandura bit JL ye drag terminal mu resistor array. Muchimiro chemirairo cheX9241, kuwedzera kune ndangariro yekuverenga-kunyora uye murairo wekutumira data pakati pememori yega yega, kunewo murairo unozobvumira drag terminal (WCR) iS/minus minimum unit command INC-WIPER, nguva imwe neimwe INC-WIPER yaitwa, kureva kuti, drag terminal ichafambisa imwe mumamodules makumi matanhatu nematatu e resistor, iyo inoratidza dhizaini yechirongwa che zero adjustment flow. Zviri nyore, 4 system principles 1) Reset“Mushure mekunge software yesystem yabatidzwa, reset solution inotanga yaitwa. Kana pasina system command kubva papeji re control panel-human-computer interaction technology, system software inotanga yaisa status word muEEPROM pese panotanga calibration, uye ichaita identification. Shandisa otomatiki main parameters akadai se preset yekutanga kana safe channel method, base value, uye gain set pamberi pe previous standby. Ipapo CPU inopa murairo wekushandura multi-channel analog switch AD7502 kuita fourth safe channel, uye input terminal ① uye ② ye instrument and equipment amplifier AD524 dzakapfupikiswa, uye CPU inodzora kuramba kweCNC machine tool zvichienderana nesystem yakarongwa kare. Kukosha kwekudzivirira kwe10K resistor mumudziyo X9241 kunochinjwa, uye kugadziriswa kwezero otomatiki kweamplifier yemidziyo yemidziyo inorongwa inoitwa. 2) Kugadziriswa kweSensor” Kana mushandi achiona kuti electronic multihead weigher haina mutoro, murairo wekugadzirisa zero sensor unowanikwa zvichienderana nepeji yehunyanzvi hwekudyidzana kwevanhu nekombuta, uye CPU inogamuchira ruzivo rwunotumirwa neCPU yepeji yehunyanzvi hwekudyidzana kwevanhu nekombuta zvichienderana nekutaurirana kweserial. , siyanisa nhamba yeboka resensor inofanira kugadziriswa, gadzirisa resistor X9241 inoenderana, ita kugadzirisa kwekutanga uye kugadzirisa zvishoma zvakateerana, uye power circuit inoita basa rezuva nezuva rekugadzirisa zero otomatiki yesensor. 3) Kugadziriswa kwesoftware yesystem zero, Mushure mekunge CPU yagadzirisa amplifier yekuwedzera kukosha uye sensor (sezvinodiwa) yemutongi anogona kurongwa, CPU inounganidza yasara voltage residual value ye zero point zvichienderana neA/D converter MAX194 uye inoichengeta muEEPROM * mirira kusvika zvese zvaita zvakanaka. Paunoyera mwana, bvisa kukosha uku zvakare. "Kana nharaunda yechisikigo ikachinja zvikuru uye CPU ikasagamuchira murairo wekugadzirisa zero, mutengi anogona kuburitsa murairo wekugadzirisa zero chero nguva uye chero kupi zvichienderana nepeji inopindirana yemuchina, kuitira kuti weiger yemagetsi ine mahead akawanda igadziriswe zvakare. Pamusoro pezvo, kune zero point data error inogadzirwa neA/D, MAX194 inogadzirisa otomatiki point stupid yeA/D mukati me50ms yekutanga yesimba rega rega. CPU inogona zvakare kushandisa A/D converter MAX194 kuita mashandiro chaiwo ekugadzirisa. "Kazhinji, iyi electronic multihead weiger ine basa rekugadzirisa otomatiki uye real-time zero software yakanaka kwazvo" kuti ive nechokwadi chekuti inoshanda zvakanaka pakuyera.#4 ) Sensor responsive function. Iyi system software ine sensor responsive function yakasiyana, iyo inoita kuti system software ive ne 'range' yakajairika kubva pamakirogiramu mashoma kusvika kumatani makumi. Tekinoroji yakakosha ndeye programmable control. Kana mutengi akasarudza imwe mhando ye sensor mu measurement range zvichienderana ne application target yake, kana iyo sensor ikatsiviwa nekuda kwezvikanganiso zvakajairika (kana shanduko mu production process), iyo Matekiniki ehunyanzvi emapurojekiti einjiniya (kana mutengi) anongoda kubatanidza sensor nesoftware yesystem, zvichienderana nepeji yehunyanzvi hwekudyidzana kwekombuta yevanhu, kukiya murairo uye chiyero chenzvimbo, uye kuisa KG kana ton component yakajairika (isipo kodhi) muweighing plate yesoftware yesystem, wobva waisa A/D model. Iyo digital converter inoverenga kukosha kwe mV/kg kana mV/t se base value uye inoichengeta muEEPROM yesoftware yesystem kuti ishandiswe pakuyera.

Pamusoro pezvo, CPU inoverenga nekujekesa kukosha kwekuwana kwekuwedzera kwehuwandu hwekugadzirisa hunogona kushandiswa hwechishandiso nemidziyo AD524 zvichienderana nehukuru hwepasi uye maparamita makuru ehuwandu hwekuyera hunotumirwa kubva kusoftware yeCPU yehunyanzvi hwekudyidzana kwemunhu nekombuta. CPU inoshandisa 2K resistor mudigital potentiometer X9241. Ita kuti amplifier yekuwedzera hunogona kushandiswa ishande pasi pechiyero chitsva chekuwana, uye ita calibration uye calibration yehuwandu hwekuyera hwechinotumira. Kuwedzera kune huremu hwese hwechinhu chakayerwa, ruzivo urwu runewo mabasa akatevedzana akadai sekugadzika kwechiteshi chekuchengetedza, kugadzika kwehukuru hwepasi, kugadzika kwebhizinesi, kugadzika kwekuwedzera, kugadzirisa zero otomatiki uye kugadzirisa mamiriro ekugadzirisa akajairika. 5.1 Dhizaini huru yepurogiramu Mabasa ari musystem yekutarisa weighter yemagetsi akawanda anovhurwa nemutengi zvichienderana nepaneru yekushanda musoftware yehunyanzvi hwekudyidzana kwemunhu nekombuta. Naizvozvo, system yekutarisa uye software yesystem inopindirana yakavimbisa maprotocol anotevera; kudyidzana kwemunhu nekombuta Basa rega rega resoftware yehunyanzvi rakagadziriswa kuti rienderane nebyte, iyo inonzi izwi rekuraira. Kana operation panel ichiita basa chairo reimwe function, relative command word inosundirwa kubva musoftware ye human-computer interaction technology system, uye monitoring system inoigamuchira kuburikidza ne serial interface termination (nekuti inspection policy system inofanirwa kuisa weighing uye push weighing. Mushure mekushanda chaiko kwemhedzisiro, inogona kugamuchirwa chete nenzira yekugumisa asi kwete nenzira yekubvunza), mushure mekuita instruction identification 'enda ku relative service item assembler.

Pamusoro pezvo, izwi remurairo rinoiswawo muEEPROM, uye rinova mamiriro ekuiswa mushure mekugadziriswa. Gadziridza EEPROM mukuyerera kwepurogiramu, uye rodha izwi remamiriro eEEPROM zvakare mushure mekudzokera pakutanga kwekuyerera kwepurogiramu yakazvimirira. Mushure mekutanga kwesoftware yesystem yega yega uye kugadzirisa main parameter, purogiramu ye zero-adjustment ye amplifier inogoverwa kamwe chete, uye chirongwa chesource chinofanira kubuda kubva pakuyera kwedenderedzwa uye kutanga kubva pakutanga mushure menguva yega yega chiteshi chemutsetse chamiswa. Nzvimbo yekumirira yekuyerera kwepurogiramu yekumisa ndeyekudzokera kunzvimbo yekutanga yekuchenesa, saka imwe flag bit 7QH yakagadzirirwa kusiyanisa kana termination interrupt yakagoneswa kana kwete. Kana zvikaitika, zvinobuda musystem yekuyera cycle uye zvinogadzirisa ma parameter makuru.”5.2 Dhizaini yeSub-programming-5. XI amplifier inogadziriswa kuita hafu yeassembler. Kutanga, CPU inosarudza chiteshi chechina chekuvhura kwe multi-channel mold. Mhedzisiro yacho ndeyekuti ma input terminals maviri e amplifier chip anopfupikiswa uye input voltage data signal iri zero, uye amplification inoitwa. Output value yemeter inofanira kugadziriswa——AC bias voltage. Isa drag head yeX9241 pane fixed terminal ye amplifier output positive bias voltage, kureva kuti, tumira OOH^ kune reverse WCRC drag terminal (kuverenga memory) wobva wagonesa A/D conversion. Kufamba kwepurogiramu ndeyekuwedzera nekubvisa ruzivo rwedata rwakawanikwa (kupfuura 1FFFH) uye 1FFFH (1FFFH ndiyo output data amount kana working voltage yeADCMAX194 ichitevedzera input flow rate ye zero, uye inosarudza kana musiyano uri positive number, kana iri positive Nhamba yacho inodzokororwa WCR pamwe neKA/D uye kushanda chaiko kwekuwedzera uye kubvisa, kusvika mhedzisiro yemusiyano iri zero kana kuti yapera kana yachinja kubva pakunaka kuenda pakuipa. 5-2.2 Kuyerera kwepurogiramu yeSensor Sm Kugadzira purogiramu yekugadzirisa zero sensor nekugadzirisa amplifier Pfungwa yekugadzirisa zero yakafanana. Musiyano unoenderana nekuti; CPU haidi kuisa nhamba kuWCR kutanga, asi inogonesa kushandurwa kweA/D kuti isiyanise kubuda kwehuwandu hwedata nehukuru hwe1FFH. Kana ikadarika, isa WCR wobva wawedzera 1 zvishoma nezvishoma kuassembler. Wobva waisa WCR woderedza assembler zvishoma nezvishoma ne1.

Pano, kukosha kweWCR kunochinjwa zvishoma nezvishoma mune imwe yeassemblers maviri kusvika A/D output ne1FFH zvamiswa munguva pfupi iri kutevera. 5.2.3 Kuyerera kweprogram yebase value Sarudza base value setting pane operation panel yeinteractive technology system software wodzvanya wobata. Panguva ino, CPU ye monitoring system inogona kuchinja kuenda ku termination solution assembler nekuda kwekugamuchira data signal ye application communication, uye kuona acceptance mu termination solution assembler. kuenda ku system command word, wobva waisa base value setting assembler.

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Munyori: Smartweigh– Huremu hwakatsetseka

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