Kwiminyaka yakutshanje, iivenkile ezinkulu zasekhaya, iivenkile zetyathanga kunye namanye amashishini orhwebo baye baqonda izibonelelo ezinkulu zorhweboInkqubo yePOSkulawulo lwamashishini, kwaye bakhe inkqubo yothungelwano lwePOS yorhwebo. Umgaqo woyilo kunye nofakelo lwenkqubo yothungelwano lwaziswa ngokweenkcukacha kwiijenali ezahlukeneyo zoshishino. Eli phepha lixoxa kakhulu malunga nendlela yokukhetha enye yeeskena zebhakhowudi zorhwebo njengenxalenye yokufumana idatha yesiphelo senkqubo yePOS yorhwebo.
Kukho izikena ezintathu eziqhelekileyo zebhakhowudi zorhwebo: iskena sebhakhowudi yeCCD, iskena sebhakhowudi yelaser kunye nesikena sebhakhowudi ye-engile yelaser.
1. Iskena sebhakhowudi yeCCDisebenzisa umthetho-siseko woqhagamshelo lombane (CCD) ukwenza umfanekiso wendlela yoshicilelo lwebhakhowudi, kwaye emva koko uyisuse. Izibonelelo zayo zezi: akukho shaft, motor, ubomi benkonzo ende. Ixabiso liphantsi.
Xa ukhetha iskena seCCD enye, iiparamitha ezimbini ezibalulekileyo zezi: Ubunzulu bebala:
Ngenxa yokuba umgaqo wokucinga weCCD ufana nekhamera, ukuba ufuna ukwandisa ubunzulu bentsimi, i-lens yokwandisa ehambelanayo, ukwenzela ukuba umthamo weCCD ukhulu kakhulu, uphazamisekile ukusebenza. I-CCD efanelekileyo kufuneka ifundeke ngaphandle kokunamathela kwikhowudi yebha, kunye nevolumu ephakathi kunye nokusebenza kakuhle.
Isisombululo : Ukuba ufuna ukuphucula isisombululo seCCD, kufuneka unyuse iyunithi yesiqalelo sesithombe esibonakalayo emfanekisweni. I-CCD enexabiso eliphantsi ngokubanzi iipikseli ezintlanu, funda i-EAN, i-UPC kunye nenye ikhowudi yorhwebo yanele, kuba enye ikhowudi yokuqaphela kuya kuba nzima. Uluhlu oluphakathi lweCCD lungaphezulu kwe-1024 pixels, ezinye zide ziye kutsho ku-2048pixe1, ziyakwazi ukwahlula iyunithi emxinwa yekhowudi yebha ye-0.1mm.
2. Ii-laser barcode scannersisikena somgca omnye sisebenzisa iityhubhu ezimbini zelaser njengemithombo yokukhanya. Ikakhulu ineentlobo ezimbini: isipili esijikelezayo kunye nesipili se-vibrato
Esebenzisa i-motor enesantya esiphezulu ukuqhuba iqela le-prism ukujikeleza, ukuze i-laser point enye ekhutshwe yimibhobho emibini ibe ngumgca. Lo mgca welaser uskenwa kwikhowudi yebha ngokwayo. Ikhowudi yebha emnyama ifunxa uninzi lwelaser, kwaye umhlophe ubonisa uninzi lwelaser. Ngaxeshanye, ukukhanya okubonakalisiweyo kubonakaliswa ngeelensi yokubona kwi- 'injini', kwaye igxile kwityhubhu yombane efoto-ntathu. Ukuqwalaselwa kwinqanaba lexesha libonisa ukuba i-photoelectric i-tube ye-tube ephantsi kwinqanaba eliphantsi kwikhowudi yebhanti emnyama, kunye nenqanaba eliphezulu kwibhanti emhlophe. Emva kwee-amplification ezininzi, i-wave ye-rectangular yenziwe, kwaye i-wave ye-rectangular ihambelana nekhowudi yebha eskeniweyo. I-waveform efunyenweyo igqithiselwa kwi-decoder ngomgca wedatha. 'Idekhowuda' eneneni yi-microcomputer enye. Ngokukodwa kuxhomekeke kukuphazamiseka kunye nekhawunta ye-chip enye ukurekhoda ixesha lokutsiba kwe-waveform. Uluhlu oluqokelelweyo lucaciswa kwiskena esilandelayo okanye ukuskena ngasemva. Ngokukodwa kuxhomekeke kumlinganiselo wexesha lezi zibalo ukucacisa ikhowudi yebha ehambelanayo. Kwisicelo esisebenzayo, kukho iintlobo ezininzi zekhowudi yebha, kunye nemibimbi yokupakisha engaqhelekanga njengomgangatho we-bubble, ngoko ke icandelo le-decoding lifuna ukunyamezela okuthile, kodwa ayinakuvelisa ikhowudi yempazamo. Okwangoku, idikhowuda yahlulwe ngokubanzi ibe yi-8 bit kunye ne-32 bit, i-8 i-advanteji ye-bit lixabiso, i-32 bit isantya. I-laser bar code market ixutywe needragons, kodwa iphinde ilandele uthuli lwe-ccd scanner, amaxabiso aye awela ngokuphindaphindiweyo, i-cottage, kodwa kukho abavelisi abaninzi basekhaya abanamandla, abathengi kufuneka baqwalasele ngononophelo ukuba yeyiphi i-brand, khetha efanelekileyo ngakumbi.
Iindleko zesibuko esingcangcazelayo ziphantsi kunesibuko esijikelezayo, kodwa lo mgaqo we-laser gun akulula ukuphucula isantya sokuskena, ngokuqhelekileyo amaxesha angama-33 ngomzuzwana.
Xa amashishini ezorhwebo ekhetha esinye sezikena ze-laser, kubaluleke kakhulu ukunikela ingqalelo kwisantya sokuskena kunye nesisombululo, kwaye ubunzulu bendawo ayisiyonto iphambili. Kuba xa ubunzulu bentsimi bunyuka, isisombululo siya kuncitshiswa kakhulu. Iskena selaser esibambe ngesandla esilungileyo kufuneka sibe nesantya esiphezulu sokuskena kunye nesisombululo esiphezulu ngaphakathi kubunzulu obumiselweyo bentsimi.
3. Iskena engile yi-aiskena sebhakhowudiI-refract i-laser ekhutshwe yi-laser diode okanye imigca yokuskena emininzi ngenkqubo yamehlo. Injongo ephambili kukunciphisa umsebenzi wokulungelelanisa ikhowudi yebar xa i-cashier ifaka idatha yekhowudi yebha. Olunye ukhetho kufuneka lugxile kunikezelo lwendawo yomgca wokuskena :
1.Kukho imigca enxuseneyo emininzi kwicala elinye
2. Imigca yokuskena emininzi idlula kwindawo enye
3. Amathuba otoliko lwenqaku ngalinye athande ukuhambelana kwisithuba esithile
Iskena se-engile esihambelana nala manqaku mathathu angasentla kufuneka sibe sesinye sezicelo zokhetho lweshishini.
Qhagamshelana nathi
Umnxeba: +86 07523251993
E-mail : admin@minj.cn
Iofisi yokongeza : Indlela yeYong Jun, iSithili saseZhongkai High-Tech, eHuizhou 516029, eChina.
Ixesha lokuposa: Nov-22-2022