Xaqiijinta aqoonsiga on-line ee gangue dhuxusha iyo naqshadaynta miisaamayaasha madax-badan ee ku salaysan tignoolajiyada dhexda iyo baska goobta

Qore: Smartweigh-Miisaanka madaxa badan

Hordhac Iyada oo la raacayo isbeddelka horumarka joogtada ah ee nidaamyada ku-xidhan, microprocessor-ka ARM ee nidaamka 32-bit RISC chip processing oo leh waxqabad aad u fiican, isticmaalka awoodda iyo qiimaha hooseeya ayaa muujinaya isbeddel horumarineed oo xooggan. Faa'iidooyinka labadaba waxay bixiyaan qorshe cusub oo isbeddel ah oo loogu talagalay farsamada diyaarinta dhuxusha ee dhaqameed. Isku-darka nidaamka isku-xidhan iyo teknoolojiyadda is-dhexgalka kombuyuutarka, aqoonsiga cusub ee on-line ee kuuskuuska dhuxusha iyo gangue dhuxusha iyo miisaamiyaha madaxa badan ee otomaatiga ah ayaa loo qaabeeyey. Jaantuska mabda'a aasaasiga ah ee aqoonsiga online-ka ah ee kuuskuusan dhuxusha iyo gangue dhuxusha iyo miisaamiyaha madax-madaxa badan oo si buuxda toos ah ayaa lagu muujiyay sawirka 1.

Marka loo eego xeerarka habka diyaarinta dhuxusha, software-ka nidaamkani wuxuu inta badan ka kooban yahay saddexda qaybood ee waaweyn ee soo socda: (1) Qaybta kormeerka: Waxay ka kooban tahay qashinka quudinta, suunka gudbinta, kamarada kormeerka ee CCD, xogta ururinta xogta wareegga wareegga korontada, iwm. Dhuxusha nadiifka ah ee la soo qodo waxay inta badan ku jirtaa gangue dhuxusha, gangue-ga dhuxusha waa in laga soo dhex doortaa suunka gaadiidka qaada. Kaamirada la socodka ee CCD waxay u dirtaa sawirada dhuxusha iyo dhuxusha dhuxusha sawirka xog ururinta wareegga korantada si loogu beddelo, macluumaadka la beddelayna waxaa loo diraa microprocessor-ka ARM, kaas oo loo gudbiyo PC sida uu qabo Internetka baska CAN xallinta.

(2) Qaybta aqoonsiga iyo wax-is-daba-marinta: Waxay ka kooban tahay kombuyuutar elektaroonig ah, microprocessor ARM iyo cabbiraadda iyo xakamaynta tignoolajiyada iyo qalabka. Waa furaha dhammaan software-ka nidaamka. Waxa ku jira dambaska dhuxusha iyo ganguska dhuxusha waxa loo xisaabiyaa si waafaqsan algorithm-ka kobcinta aragga kombiyuutarka. Ka dib markii microprocessor-ka ARM uu aqoonsado oo kala saaro lebenka gangue ee dhuxusha, qaabka hawlgalka ayaa la sameeyaa. Haddii loo aqoonsado dhuxusha, oo qalliinku qayb ahaan aanu shaqayn, dhuxusha nadiifta ahi waxay dabcan ku dhici doontaa kaydka dhuxusha waxaana laga soo qaadi doonaa kanaalka badbaadada dhuxusha.

Haddii loo aqoonsado gangue dhuxusha, signalka xogta xakamaynta ayaa la soo diri doonaa, waxaana la furi doonaa albaabka albaabka, si ay gangue dhuxusha ugu dhacdo kanaalka badbaadada dhuxusha. (3) Ururka kala soocida degdega ah: Waxa uu ka kooban yahay waalka albaabka, baaldi alaabta ceeriin iyo nidaamka software qalabka qaybinta awoodda, iwm. Sida laga soo xigtay Internet baska CAN, baarista tooska ah iyo gaadiidka dhuxusha iyo gangue dhowr channels ammaan ah ayaa la sameeyaa. Soo bandhigid tafatiran ee chip-processor AT91M40800AT91M40800 waa chip processing oo leh wax qabad qiime sare leh ATMEL's 16-bit/32-bit system microprocessor-ka alaabada taxanaha ah ee ku salaysan ARM7TDMI xudunta u ah. Furaha ayaa ah nidaamka 32-bit oo leh qaab-dhismeed aad u wanaagsan RISC (La dhimay Intro-duction Set Computer), oo leh 16-bit (suulka) habka wax dhigista.

Marka loo eego godka baska nidaamka dibadda (EBI) ee kantaroolaha barnaamijka, waxa isla markiiba lagu xidhaa xasuusyo kala duwan oo ka baxsan chip-ka oo ay ku jiraan FLASH. Siddeed mudnaan ayaa carqaladeeya looxyada kontoroolka vector-ka iyo looxyada kontoroolka xogta goobta-chip-ka waxay si weyn u wanaajiyaan waxqabadka waqtiga-dhabta ah ee qaybaha. sifo. AT91M40800 wuxuu isku daraa ARM7DMIARMThumbCPU xudunta, wuxuu bixiyaa 9kB on-chip SRAM, siddeed chip xulashada khadadka, 32 kontaroolaha barnaamijyada I/O, iyo 8-bit ama 16-bit baska nidaamka software telefoonka gacanta Qaabka wax looga qaban karo booska gudaha 64MB, 2 USARTs, USART kasta waxay leedahay laba channels ilaalinta xogta macluumaadka goobta dibadda u go'an, ku dhex dhisay kontaroolaha barnaamijka 1 timer, siddeed ayaa leh mudnaan, waxay noqon kartaa madax bannaan oo maaskaro kontoroolka joojinta vector booska, 4 khalkhalgelinta dibadda xusuusta, 4 carqalado dibadda ah oo ay ku jiraan mudnaanta sare, codsiga joojinta daahitaanka oo hooseeya, 3 gelinnada saacada dhijitaalka ah ee dijitaalka ah, 3 kanaal sugan 16-bit timer/counter electronics. SJA1000 waa in ay lahaataa maareyn heersare ah iyo maareynta kheyraadka macluumaadka sababtoo ah waxaa jira masaafo go'an oo u dhaxaysa barxadda dhuxusha, buurta dhuxusha gangue iyo aqoon-is-weydaarsiga wax-soo-saarka baarista.

Tignoolajiyada isku xidhka kombuyuutarku waxay u rogi kartaa cabbirada saxda ah iyo nidaamyada xakamaynta ee kala duwan oo baahsan, waxayna u isticmaali kartaa nidaamka baska buundada si ay isugu geeyaan nidaamka codsiga iyo nidaamka xakamaynta otomaatiga ah kaas oo wada xidhiidhi kara midba midka kale oo isdhaafsan kara macluumaadka iyo iskaashiga midba midka kale ee hawlaha maalinlaha ah ee nidaamka xakamaynta tooska ah. . Xawaaraha ugu badan ee isgaarsiineed ee CAN waa 1Mbps, fogaanta gudbinta isla markiiba waa ilaa 10km (xawaaruhu wuxuu ka hooseeyaa 8kbps), iyo ilaa 110 mashiin iyo qalab ayaa lagu xidhi karaa, kuwaas oo samayn kara baadhis dheeraad ah oo badan iyo hawl maalmeed. SJA1000 waa boodhka kantaroolka baska ee CAN oo madax banaan oo ay soo saartay Philips, kaas oo loo isticmaalo shabakadaha deegaanka ee wireless-ka ee looxyada baabuurta iyo guud ahaan jawiga wax soo saarka warshadaha. Habka shaqada (qaabka PeliCAN) si fudud ayaa loogu xidhi karaa CPU-yo kala duwan si loo sameeyo Internet-ka hawlgalinta CAN.

Nidaamka naqshadaynta isgaadhsiinta qaabaynta qaabaynta qalabka EPM7128 waxaa loo isticmaalaa beddelka iyo qaabaynta calaamadaha xogta ee u dhexeeya saldhigyada. Gelitaanka EPM7128 wuxuu ka yimid calaamada xogta xulashada chip NCS2 ee AT91M40800, khadka dallaca taleefanka gacanta D0 ~ D7, ciwaanka faahfaahsan A0 ~ A1, signalka akhrinta NRD, qor Calaamada xogta NWE iyo nidaamka calaamadaynta xogta software RST waxay mareen xal macquul ah oo gudaha ah, taasoo keentay calaamada xogta ficilka ee loo baahan yahay SJA1000. Marka loo eego qawaaniinta laynka korantada ee chip kasta oo farsamaynta iyo meelaynta ciwaanka dekeda, waxa loo qori karaa sidii xidhidhka isku xigxiga/soo saarista macquulka ah ee gudbinta baska CAN sida soo socota: CAN=NCS2·A0CANALE=NCS2•A0•(NRD+NWE) CANRD=NRDCANWR=NWECANRST=NCS2+RST Nambarka dekada ciwaanka ee faahfaahsan ee SJA1000 ee la doortay waa 400000H, ciwaanka faahfaahsan ee lambarka xogta xogta waa 400001H ciwaanka dekedduna waa 400002H. Sababtoo ah xogta xogta ciwaanka ee faahfaahsan ee guddiga kontoroolka CAN SJA1000 waa la badiyay, calaamada xogta ciwaanka ee tifaftiran ee baska nidaamka waxa lagu xidhi karaa iyadoo loo eegayo cidhifka soo dhacaya calaamada xogta ALE.

Si kastaba ha ahaatee, baska ciwaanka iyo nidaamka baska AT91M40800 si madaxbanaan ayaa loo soo bandhigay oo laguma xidhi karo baska nidaamka ciwaanka ee SJA1000 oo faahfaahsan isla markiiba. Sidaa darteed, si loola tacaalo dhibaatada godka ee SJA1000 iyo AT91M40800, furaha ayaa ah sida loo diro signalka xogta looga baahan yahay in lagu dhex baadho SJA1000. Habka halkan lagu doortay waa in lagu fuliyo hawlgalka I/O ee dhabta ah 2 jeer. Marka ugu horeysa, qiimaha ciwaanka ee faahfaahsan waxaa loo diraa cinwaanka faahfaahsan lambarka dekedda lambarka 400000H sida ciwaanka faahfaahsan ee moduleka SJA1000.

Waqtigan xaadirka ah, xulashada chip lama dooran, xogta xogtana waxay ku xidhan tahay baska nidaamka AD0-AD7. Marka la baadho xogta xogta dekedda lambarka 400001H mar labaad, SJA1000 waa la doortaa, iyo qiimaha cinwaanka ugu horeysay oo faahfaahsan waxaa lagu shubaa SJA1000 hoos function of ALE xogta signal, iyo CPU fulisaa reading/qorista dhabta ah ee SJA1000. Qalabaynta waxa loo qaybin karaa habaynta software-ka iyo habaynta socodka socodka barnaamijka.

Calaamadaha xogta cabbirka software-ka ee nidaamka RST iyo calaamada xogta jaan-goynta socodka barnaamijka waxay ku fuliyaan hawlgal macquul ah ama la taaban karo gudaha EPM7128, kuwaas oo midkood ka dhigi kara SJA1000 cabbir la isku halayn karo. Si aad si wanaagsan u hubiso isku halaynta xogta xogta, ku xidh 120Ω aaladda teerminal iska caabiyaha dusha sare leh ee baska CAN kasta si aad u sameyso iska caabbinta nidaamka baska. pin-ka TX1 ee SJA1000 waxa uu ku salaysan yahay 10k8 resistor, iyo calaamada garaaca wadnaha ee pin RX1 waa in lagu hayaa kor 0.9Vcc.

Haddii kale, calaamada garaaca wadnaha ee macquulka ah ee uu u baahan yahay baska CAN lama dhalin karo. Haddii masaafada isgaarsiintu ay gaaban tahay oo saameynta deegaanka dabiiciga ah ay yar tahay, wareegga awoodda ilaalinta indhaha ee 6N137 waa laga saari karaa. Waqtigaan, VREF ee 82C251 waxaa lagu xiri karaa pin RX1 isla markaaba, si loo fududeeyo wareegga korantada. Xidhiidhka xogta ee u dhexeeya microprocessor-ka ARM iyo baska CAN AT91M40800 wuxuu baadhayaa calaamadaha xogta ee xusuusta ka baxsan chip-ka iyo qaybaha dibadda iyadoo loo eegayo nidaamka baska dibadda (EBI). EBI waxay quseysaa hab-raacyo kala duwan oo wax lagu baadho, kuwaasoo dhameystiri kara wareegga keliya ee qaybaha dibadda. Waqtiga raadinta, dejinta EBI ee nidaamka naqshadeynta waa: (1) dooro baska nidaamka 8-bit; (2) dooro borotokoolka akhriska qeexid; (3) dooro siddeed wareeg oo wakhtiga sugitaanka; (4) Chip select line NCS2 Ciwaanka faahfaahsan ee salku waa 400000H.

Socodka barnaamijka oo dhan wuxuu ku qoran yahay luqadda C ee maktabadda AT91, kaas oo leh faa'iidooyinka akhriska xooggan, aad u sahlan in lagu tallaalo, horumarinta fudud iyo naqshadeynta, iyo hagaajin habboon. Dib u habeyn sax ah ayaa saldhig u ah hawlgalka caadiga ah ee socodka barnaamijka. Dib u dajinta software-ka nidaamka inta badan waa dib u dajinta AT91M40800 microcontroller iyo SJA1000 (SJA1000 oscillator oscillator circuit 16M) Tallaabooyinka dib-u-habaynta waxa lagu muujiyey Jaantuska 3. Natiijooyinka Aqoonsiga khadka iyo miisaanka madaxa badan ee tooska ah ee lebenka gangue ee dhuxusha oo ka kooban AT91M40800 chip processing ee microprocessor ARM iyo CAN guddiga baska SJA1000 ayaa la doortay. Marka la barbar dhigo baska caadiga ah ee CAN ee ay maamusho MCU, waa bas CAN oo cusub. nidaamka hawlgalka.

Nidaamka xalka software ee ku salaysan nidaamka hawlgalka ee microprocessor ARM iyo baska CAN wuxuu leeyahay karti aad u wanaagsan, isku halaynta iyo awoodda isku-duwidda, kaas oo siinaya hab cusub oo loogu talagalay farsamada diyaarinta dhuxusha ee duugoobay.

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