labarai

Ana kuma kiran na'urorin na'urar daukar hotan takardu daban-daban, masu karanta lambar barcode, na'urar daukar hotan takardu, na'urar daukar hotan takardu, na'urar daukar hotan takardu da na'urar daukar hotan takardu bisa ga sunayen al'ada. .An fi amfani da shi a ɗakunan karatu, asibitoci, kantin sayar da littattafai da manyan kantunan, a matsayin hanyar shigar da sauri don yin rajista ko daidaitawa, tana iya karanta bayanan barcode kai tsaye a cikin marufi na waje na kaya ko bugu, sannan a shigar da su cikin tsarin kan layi.

1. Na'urar daukar hoto ta barcode wata na'ura ce da ake amfani da ita don karanta bayanan da ke cikin barcode. Tsarin na'urar daukar hotan takardu yawanci shine sassa masu zuwa: tushen haske, na'urar karba, abubuwan canza wutar lantarki, da'irar yankewa, keɓancewar kwamfuta.

2. Ainihin ka'idar aiki na na'urar daukar hotan takardu ita ce: Hasken da ke fitowa ta hanyar haske yana haskakawa akan alamar barcode ta hanyar tsarin gani, kuma ana nuna hasken da ke haskakawa akan mai canza hoto ta hanyar tsarin gani don samar da siginar lantarki. kuma ana ƙara siginar da kewaye. Ana samar da wutar lantarki ta analog, wanda yayi daidai da hasken da ke nuna alamar lambar, sannan a tace kuma a siffata shi don samar da siginar murabba'i mai murabba'in siginar analog, wanda na'urar ke fassara shi azaman siginar dijital wanda za'a iya karɓa kai tsaye. ta kwamfuta.

3. Na'urar daukar hoto ta yau da kullun tana amfani da fasaha guda uku masu zuwa: alkalami mai haske, CCD, da Laser. Dukkansu suna da nasu fa'ida da rashin amfani, kuma babu wani na'urar daukar hoto da zai iya samun fa'ida ta kowane fanni.