Na'urar daukar hotan takardu ta mashaya kayan aiki ne da ake amfani da su a tsarin POS na kasuwanci.Akwai manyan rukuni guda biyu, ɗaya shine aikace-aikacen da aka yiwa tracers na talakawa da masu binciken kasuwanci.Kasuwanci ya kasu kashi uku: na'urar daukar hoto na CCD, na'urar daukar hoto ta Laser na hannu da na'urar daukar hotan takardu ta Laser duka-duka uku.
CCD na'urar daukar hotan takardu
Na'urar daukar hotan takardu ta CCD tana amfani da ka'idar haɗin haɗin gwiwar hoto (CCD) don ɗaukar hoto da aka buga ƙirar sa'an nan kuma yanke shi.Amfaninsa sune:
Babu shaft, motor, dogon sabis rayuwa;
arha.
Lokacin zabar na'urar daukar hoto na CCD, sigogi biyu ne mafi mahimmanci:
Zurfin filin
Saboda ka'idar daukar hoto na CCD yayi kama da na kamara, idan kuna son ƙara zurfin filin, ya kamata ku ƙara yawan ruwan tabarau, wanda ke sa CCD yayi girma da rashin dacewa don aiki.Ana iya karanta CCD mai kyau ba tare da manne wa lambar mashaya ba, kuma ƙarar tana da matsakaici kuma aikin yana da daɗi.
warware iko
Idan muna son inganta ƙudurin CCD, dole ne mu ƙara ɓangaren ɓangaren na'urar daukar hoto a wurin hoto.CCD mai ƙarancin farashi gabaɗaya pixel mai tashar jiragen ruwa 5 ne.Ya isa ya karanta EAN, UPC da sauran lambobin kasuwanci, amma zai yi wuya a karanta wasu lambobin.CCD na tsakiyar kewayon shine mafi yawa 1024pixel, wasu ma sun kai 2048pixel, wanda zai iya bambanta lambar mashaya tare da mafi ƙarancin naúrar 0.1mm.