Kho Qhov Muag Kho Kom Zoo Ntawm Barcode Scanner

Kev kho qhov muag yog tus naj npawb tiag tiag ntawm lub teeb pom kev zoo uas tuaj yeem ntes tau los ntawm cov khoom siv kho qhov muag ntawm qhov barcode scanner rau ib nti. Nws yog hais txog kev daws teeb meem ntawm lub cev ntawm lub bar scanner' s CCD (lossis lwm yam khoom siv optoelectronic) thiab kev daws teeb meem tseeb ntawm cov lej ntsuas barcode. Tus nqi, nws tus nqi yog tus nqi tau los ntawm kev sib faib ntau tus naj npawb ntawm pixels uas tuaj yeem ntes tau los ntawm photoelectric keeb los ntawm qhov siab tshaj plaws scannable qhov loj ntawm barcode scanner qib. Piv txwv li, cov khoom ntsuas barcode nrog kev daws teeb meem ntawm 1200 DPI feem ntau muaj kev daws teeb meem ntawm tsuas yog 400 rau 600 DPI. Kev daws teeb meem ntawm qhov nthuav dav tau tsim ua ke los ntawm kev kho vajtse thiab software. Tus txheej txheem no yog tsim los ntawm lub tshuab tsom xam ntawm daim duab thiab ua lej sau rau qhov seem (txoj kev no tseem hu ua kev txhais cov coj ua).

Optical scanning thiab tso zis tawm yog qhov ib-rau-ib. Dab tsi yog scanned yog dab tsi yog tsim tawm. Tom qab ua tiav los ntawm lub koos pij tawj software thiab kho vajtse, cov duab tsim tawm yuav dhau los ua qhov tseeb thiab qhov kev daws teeb meem yuav siab dua. Feem ntau bar code scanners tam sim no ntawm kev ua lag luam muaj software thiab kho vajtse nthuav txav zog rau kev daws teeb meem. Qee qhov bar code scanner tshaj tawm sau 9600 × 9600 DPI. Qhov no tsuas yog qhov kev daws teeb meem siab tshaj plaws tau txais los ntawm kev txhais lus software, tsis yog qhov tseeb kho qhov muag tau ntawm lub vijtsam bar code. Yog li rau qhov barcode scanner, nws cov kev daws teeb meem tau kho qhov muag (lossis qhov teeb meem kho qhov muag) thiab qhov teeb meem siab tshaj plaws. Ntawm chav kawm, yam peb mob siab txog yog kev daws teeb meem kho qhov muag. Nov yog kev ua haujlwm nyuaj.

Peb hais tias kev daws teeb meem ntawm lub barcode scanner yog li 4800 DPI (qhov no 4800 DPI yog qhov tawm ntawm kev daws teeb meem kho qhov muag thiab kev ua haujlwm sib txawv ntawm cov software), uas txhais tau tias thaum cov duab siv nrog bar scanner, nws tuaj yeem sau rau ntawm 1-nti-ntiv tes scanning hom ntawv. 4800 × 4800 pixels. Txheeb thaj tsam ntawm 1 nti square, daim duab loj tom qab luam theej duab nrog 4800DPI kev daws teeb meem yog 4800Pixel × 4800Pixel. Thaum thaij duab ib cov duab, qhov siab dua ntawm kev daws teeb meem tau teeb tsa, cov kab mob zoo dua hauv cov nyhuv ntawm cov duab tsim tawm thiab cov ntaub ntawv loj dua cov ntaub ntawv tsim tawm, tab sis ntau dua cov kev sib txuas lus ntau dua.