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I-1) Ububanzi besicelo Iteknoloji yekhowudi yeBar isetyenziswe kwiimeko ezahlukeneyo, kwaye abafundi beekhowudi ezahlukeneyo kufuneka bakhethwe. Ngokomzekelo, ukuphuhlisa inkqubo yokulawula indawo yokugcina ikhowudi yebha, kudla ngokuyimfuneko ukubala rhoqo iilebhu kwindawo yokugcina impahla. Ngokuhambelanayo, umfundi wekhowudi yebha kufuneka aphatheke kwaye unokugcina ulwazi lwe-inventri okwethutyana endaweni yokukhawulelwa ukuyisebenzisa phambi kwekhompyuter. Kungcono ukhethe umfundi wekhowudi yebha ephathekayo. Ifanelekile. Xa usebenzisa umqokeleli webhakhowudi kumgca wokuvelisa, ngokuqhelekileyo kuyimfuneko ukufaka umfundi webhakhowudi kwezinye iindawo ezisisigxina kumgca wokuvelisa, kwaye iinxalenye eziveliswayo zifanelekile ngakumbi kubafundi bebhakhowudi, njengohlobo lwe-laser gun, i-CCD scanner, njl. Kwinkqubo yolawulo lwenkomfa kunye nenkqubo yokuhamba kweshishini, uhlobo lwekhadi okanye uhlobo lwebhakhowudi yokufunda lunokukhethwa. Umntu ekufuneka esayine uya kufaka isatifikethi sebhakhowudi-eprintiweyo kwindawo yokufunda, kwaye umfundi uya kuskena ngokuzenzekelayo kwaye anike umqondiso wokuphumelela kokufunda. Oku kuvumela ukungena ngexesha lokwenyani. Ngokuqinisekileyo, ngezinye izihlandlo ezikhethekileyo, izixhobo ezikhethekileyo zokufunda ibhakhowudi nazo zinokuphuhliswa ukuhlangabezana neemfuno.

2) Uluhlu lwe-decoding Uluhlu lwe-decoding sesinye isalathisi esibalulekileyo sokukhetha umfundi webhakhowudi. Okwangoku, uluhlu lwe-decoding yabafundi bebhakhowudi eveliswe ziinkampani ezahlukeneyo zahluke kakhulu. Abanye abafundi banokubona iinkqubo ezininzi zekhowudi, kwaye abanye abafundi banokuqaphela iinkqubo zekhowudi ezingaphezu kweshumi elinesibini. Xa uphuhlisa inkqubo yesicelo sekhowudi yebha, khetha inkqubo yekhowudi ehambelanayo. Ngexesha elifanayo, xa uqwalasela umfundi wekhowudi yebha yenkqubo, umfundi kufuneka abe nomsebenzi wokucacisa ngokuchanekileyo iimpawu zale nkqubo yekhowudi. Kumalungiselelo, ikhowudi ye-UPC/EAN isoloko isetyenziswa. Ngoko ke, xa uphuhlisa inkqubo yokulawula i-mall mall, xa ukhetha umfundi, kufuneka akwazi ukufunda ikhowudi ye-UPC / EAN. Kwiposi kunye nenkqubo yonxibelelwano, iChina ngoku isebenzisa ikhowudi ye-matrix ye-25. Xa ukhetha umfundi, isimboli yenkqubo yekhowudi iqinisekisiwe.

3) Isakhono sokunxibelelana Kukho iindawo ezininzi zesicelo sobuchwepheshe bebhakhowudi, kwaye zininzi iintlobo zeekhompyuter. Xa uphuhlisa inkqubo yesicelo, imeko-bume yenkqubo yehardware imiselwa ngokubanzi kuqala, kwaye emva koko umfundi webhakhowudi olungele imeko-bume ukhethiwe. Oku kufuna imo yojongano lomfundi okhethiweyo ukuhlangabezana neemfuno ezipheleleyo zokusingqongileyo. Kukho iindlela ezimbini zojongano lwabafundi bebhakhowudi ngokubanzi: A. Unxibelelwano lothotho. Le ndlela yonxibelelwano idla ngokusetyenziswa xa kusetyenziswa inkqubo yekhompyutha encinci naphakathi, okanye xa indawo yokuqokelelwa kwedatha ihleli kumgama omde ukusuka kwikhompyuter. Umzekelo, kwinkqubo yolawulo lokuzimasa ishishini, ikhomputha ayibekwanga ekungeneni nasekuphumeni, kodwa ibekwe e-ofisini, ukuze ibambe imeko kwangethuba. B. Ukulinganisa ikhibhodi yindlela yojongano ehambisa ulwazi lwebhakhowudi eqokelelwe ngumfundi kwikhompyuter ngechweba lekhibhodi yekhompyuter, kwaye ikwayindlela esetyenziswa ngokuqhelekileyo. Okwangoku, iindlela zebhodibhodi ezifana ne-XKAT zisetyenziswa ngokuqhelekileyo kwi-IBM/PC kunye noomatshini bayo abahambelanayo. I-keyboard port ye-terminal yekhompyutha ineendlela ezahlukeneyo. Ngoko ke, ukuba ukhetha ukulinganisa kwekhibhodi, kufuneka ubeke ingqalelo kuhlobo lwekhompyutheni kwinkqubo yesicelo, kwaye uqaphele ukuba umfundi okhethiweyo unokuhambelana nekhompyutheni.

4) Iimfuno zeeparameters ezifana nezinga lokuqala lokufunda Ireyithi yokuqala yokufunda isalathisi esibanzi sabafundi bebhakhowudi, ehambelana nomgangatho wokushicilela weempawu zebhakhowudi, ukuyila abakhethi beekhowudi kunye nokusebenza kweeskena ze-photoelectric. Kweminye imimandla yesicelo, umfundi wekhowudi yebha obanjwe ngesandla angasetyenziselwa ukulawula ukuskena okuphindaphindiweyo kweempawu zekhowudi yebha ngabantu. Ngeli xesha, iimfuno zomlinganiselo wokuqala wokufunda zingqongqo kakhulu, kwaye ngumlinganiselo womsebenzi osebenzayo. Kwimveliso yemizi-mveliso, ukuzigcina kunye nezinye izicelo, izinga eliphezulu lokufunda lokuqala liyafuneka. Ibarcode ehambelana nomthwali uhamba kumgca wokuvelisa ngokuzenzekelayo okanye ibhanti lokuhambisa, kwaye kukho ithuba elilodwa kuphela lokuqokelela idatha. Ukuba umlinganiselo wokuqala wokufunda awufikeleli kwi-100%, umcimbi wokulahleka kwedatha kuya kwenzeka, okubangelwa yimiphumo emibi. Ke ngoko, kule mihlaba yesicelo, abafundi bekhowudi yebha abanezinga eliphezulu lokufunda lokuqala, njengeeCCD scanners, kufuneka zikhethwe.

5) Isisombululo Xa ukhetha isixhobo sokubona okuchanekileyo kobubanzi bebha emxinwa efundwe kuyo, ingxinano yebhakhowudi esetyenziswa kwisicelo ikhetha isixhobo sokufunda ngesisombululo esifanelekileyo. Esetyenziswayo, ukuba isisombululo sesixhobo esikhethiweyo siphezulu kakhulu, inkqubo iya kuchaphazeleka kakhulu yi-smudges kunye nokucima i-inking kwimivalo.

6) Iimpawu zokuskena iimpawu zokuskena zinokwahlulwa zibe bunzulu bebala lokuskena, ububanzi bokuskena, isantya sokuskena, izinga lokuqondwa kwexesha elinye, izinga lempazamo encinci, njl. njl. kuvunyelwe ukuba ushiye indawo yebhakhowudi kunye neyona ndawo ikufutshane umgama apho iskena sinokusondela kumphezulu webhakhowudi phantsi kwesiseko sokuqinisekisa ukufundwa okuthembekileyo, oko kukuthi, uluhlu olusebenzayo lweskena sebhakhowudi. Ezinye izixhobo zokuskena itafile yebhakhowudi aziniki ubunzulu bokuskena kwesalathiso sentsimi kwizalathisi zobugcisa, kodwa zinike umgama wokuskena, oko kukuthi, owona mgama umfutshane ukuba intloko yokuskena ivunyelwe ukushiya umphezulu webhakhowudi. Ububanzi bokuskena bubhekisa kubude obubonakalayo bolwazi lwebhakhowudi enokufundwa ngumqa wokuskena kumgama onikiweyo wokuskena. Isantya sokuskena sibhekisa kubuninzi besibane sokuskena kwingoma yokuskena. Izinga lokuqatshelwa kwexesha elinye limele umlinganiselo wenani leethegi ezifundwe ngumntu oskenwe okokuqala kwinani elipheleleyo leethegi eziskeniweyo. Isalathiso sovavanyo lwesantya sokuqondwa kwexesha elinye sisebenza kuphela kwindlela yokuqaphela ipeni yokukhanya ebambe ngesandla. Ukuba usebenzisa isignali efunyenweyo iyaphindwa. Umlinganiselo wempazamo encinci ulingana nomlinganiselo wenani elipheleleyo lokuchongwa okungeyonyani. Kwinkqubo yekhowudi yebha, isantya sempazamo encinci yingxaki enkulu kunenqanaba elisezantsi lokuqondwa kwexesha elinye.

7) Ubude besimboli yebhakhowudi Ubude bebhakhowudi yophawu oluthathu yinto ekufuneka iqwalaselwe xa ukhetha umfundi. Ngenxa yempembelelo yethekhnoloji yokuvelisa, ezinye iiskena zefoto zombane zicacisa ubungakanani bobungakanani bokuskena, njengezikena zeCCD kunye neeskena ze-beam ezihambayo. Kwezinye iinkqubo zesicelo, ubude besimboli yebhakhowudi kutshintshwa ngokungenamkhethe, njengenombolo yesalathisi sencwadi, ubude besimboli yebhakhowudi kwimpahla yemveliso, njl.njl. Kwizicelo zobude obuguquguqukayo, impembelelo yobude besimboli yebhakhowudi kufuneka kuqatshelwe xa ukhetha umfundi. 8) Ixabiso lomfundi Ngenxa yemisebenzi eyahlukeneyo yabafundi, amaxabiso nawo awahambelani. Ngoko ke, xa ukhetha abafundi, qaphela umlinganiselo wokusebenza-ixabiso leemveliso, kwaye kufuneka uhlangabezane neemfuno zenkqubo yesicelo kwaye ixabiso kufuneka libe ngaphantsi njengomgaqo wokukhetha. 9) Imisebenzi ekhethekileyo Kuyimfuneko ukuba ungene kwiindawo ezininzi zokungena kwaye udibanise abafundi abaninzi kwikhompyutheni enye, ukwenzela ukuba abafundi ekungeneni ngamnye baqokelele ulwazi kwaye bathumele kwikhompyutheni efanayo. Ke ngoko, abafundi kufuneka babe nemisebenzi yokunxibelelana ukuqinisekisa ukuba ikhompyuter inokufumana ngokuchanekileyo ulwazi kunye nokujongana kwangexesha. Xa inkqubo yesicelo ineemfuno ezikhethekileyo kumfundi webhakhowudi, ukhetho olukhethekileyo kufuneka lwenziwe.