Dab tsi yog 1D barcode thiab 2D barcode?

Thoob plaws hauv kev lag luam, cov ntawv cim barcode uas koj siv los txheeb xyuas koj cov khoom thiab cov khoom muaj nqis yog qhov tseem ceeb rau koj txoj kev lag luam. Kev ua raws cai, hom npe tus kheej, cov ntaub ntawv zoo / kev tswj hwm cov cuab yeej cuab tam yuav tsum tau ua haujlwm zoo (thiab raug) daim ntawv lo. Qhov zoo ntawm daim ntawv lo thiab luam ntawv cuam tshuam kev ua haujlwm zoo.Koj yuav tsum paub hom barcodes tsis yog rau kev txiav txim siab seb qhov twg ua haujlwm zoo tshaj plaws nrog koj cov khoom, tab sis kuj yog li koj tuaj yeem txiav txim siab zoo tshaj lwm yam kev txhawb nqa tshuab (tshuab luam ntawv, scanners, nyeem ntawv) uas yuav muab koj cov kev daws teeb meem barcode rau koj lub lag luam tag nrho.

Q: yog dab tsi a1D barcode

A: A 1D barcode (tseem hu ua linear code) yog qhov pom xim dub thiab dawb qauv, siv cov kab sib txawv-dav thiab qhov chaw rau cov ntaub ntawv encoding. Cov ntaub ntawv ntawd - xws li cov lej lossis lwm cov yam ntxwv ntawm cov keyboard - yog encoded kab rov tav los ntawm sab laug mus rau sab xis. 1D barcodes tuav cov cim tsawg, feem ntau 20-25. Txhawm rau ntxiv cov lej, tus lej barcode yuav tsum ntev dua. Cov 1D barcodes paub zoo tshaj plaws yog cov lej UPC uas muaj nyob ntawm cov khoom noj thiab cov neeg siv khoom. A 1D barcode nyob ntawm cov ntaub ntawv sib txuas kom muaj txiaj ntsig; tom qab lub scanner nyeem cov lej hauv cov lej, lawv yuav tsum tau txuas rov qab rau cov khoom lossis hnub nqi, lossis lwm yam ntaub ntawv.

Q: Dab tsi yog a2D barcode?

A: 2D barcode scanner nws yog los sau cov ntaub ntawv nrog cov duab geometric faib rau hauv cov xim dub thiab dawb raws li txoj cai lij choj.2D barcodes tuaj yeem siv los kos cov khoom me me uas daim ntawv lo cim barcode yuav tsis haum - xav txog cov cuab yeej phais lossis cov rooj zaum hauv Circuit Court. ntawm lub computer.Thaum nws los txog rau cov neeg xaiv, 2D barcodes feem ntau yog cov neeg nyiam vim cov ntaub ntawv ntau npaum li cas 2D barcode tuaj yeem sib piv rau 1D.