xov xwm

Cov tshuab luam ntawv sib txawv kuj tseem hu ua tus nyeem ntawv barcode, barcode scanners, barcode scanners, barcode scanners thiab barcode scanners raws li cov npe kev cai. . Feem ntau siv hauv cov tsev qiv ntawv, tsev kho mob, khw muag ntawv thiab cov khw muag khoom loj, ua ib txoj hauv kev rau kev sau npe ceev lossis kev sib hais haum, nws tuaj yeem nyeem ncaj qha cov ntaub ntawv barcode ntawm lub ntim ntim khoom lossis cov khoom luam tawm, thiab muab tso rau hauv online system.

1. Lub tshuab luam ntawv barcode yog lub cuab yeej siv los nyeem cov ntaub ntawv muaj nyob hauv barcode. Cov qauv ntawm barcode scanner feem ntau yog cov hauv qab no: lub teeb qhov chaw, txais cov cuab yeej, photoelectric hloov dua siab tshiab Cheebtsam, kev txiav txim siab Circuit Court, computer interface.

2. Lub hauv paus ntsiab lus ntawm kev ua haujlwm ntawm barcode scanner yog: Lub teeb emission los ntawm lub teeb ci yog irradiated ntawm lub cim barcode los ntawm lub tshuab kho qhov muag, thiab lub teeb pom kev zoo yog cov duab ntawm lub photoelectric converter los ntawm cov khoom siv kho qhov muag los tsim cov teeb liab hluav taws xob, thiab lub teeb liab yog amplified los ntawm Circuit Court. Ib qho hluav taws xob analog yog generated, uas yog proportional rau lub teeb reflected ntawm lub barcode cim, thiab ces lim thiab zoo li tus tsim ib square yoj teeb liab sib raug rau cov teeb liab analog, uas yog txhais los ntawm lub decoder raws li ib tug digital teeb liab uas tau ncaj qha txais. los ntawm lub computer.

3. Ordinary barcode scanners feem ntau siv peb technologies hauv qab no: lub teeb cwj mem, CCD, thiab laser. Lawv txhua tus muaj lawv tus kheej qhov zoo thiab qhov tsis zoo, thiab tsis muaj scanner tuaj yeem muaj qhov zoo ntawm txhua yam.