litaba

Le hoja 'mali e mong le e mong a bala li-barcode ka litsela tse sa tšoaneng, phello ea ho qetela ke ho fetolela boitsebiso ho lipontšo tsa digital ebe joale boitsebiso bo ka baloang kapa bo lumellanang le lik'homphieutha. Software ea ho etsa li-decoder ka sesebelisoa se arohaneng e phethiloe, barcode e tsejoa le ho khetholloa ke decoder, ebe e kenngoa khomphuteng e amohelang.

Ho kenya data ho hloka ho kopanngoa kapa ho hokahanngoa le moamoheli, 'me sebopeho se seng le se seng se tlameha ho ba le likarolo tse peli tse fapaneng: e' ngoe ke lera la 'mele (hardware),' me e 'ngoe ke lera le utloahalang, le bolelang protocol ea puisano. Mekhoa e tloaelehileng ea li-interface ke: keyboard port, serial port kapa khokahanyo e tobileng. Ha u sebelisa mokhoa oa sebopeho sa keyboard, data ea matšoao a barcode e rometsoeng ke 'mali e nkoa ke PC kapa terminal e le data e rometsoeng ke keyboard ea eona,' me ka nako e ts'oanang, li-keyboards tsa bona li ka etsa mesebetsi eohle. Ha o sebelisa khokahano ea port keyboard butle haholo, kapa mekhoa e meng ha e fumanehe, re tla sebelisa mokhoa oa serial port connection. Ho na le meelelo e 'meli ea khokahano e tobileng mona. E 'ngoe e bolela hore' mali o hlahisa data ka ho toba ho moamoheli ntle le lisebelisoa tse eketsehileng tsa ho khetholla, 'me e' ngoe e bolela hore data e khethiloeng e amana ka ho toba le moeti ntle le ho sebelisa keyboard. Mantsoe a mang a sebelisoang ka tloaelo Dual Interface: Ho bolela hore 'mali a ka hokahanya lisebelisoa tse peli tse fapaneng ka kotloloho,' me a itlhophise le ho buisana le terminal e 'ngoe le e' ngoe, mohlala: CCD e sebelisoa ho hokela terminal ea IBM ea POS motšehare, le bosiu. E tla hokela setsing sa data se nkehang habobebe bakeng sa lethathamo la thepa, 'me e sebelise sebopeho se hahelletsoeng kahare ho etsa hore phetoho lipakeng tsa lisebelisoa tsena tse peli e be bonolo haholo. Memori ea Flash (Flash Memory): Memori ea Flash ke chip e ka bolokang data ntle le phepelo ea motlakase, 'me e ka qeta ho ngola bocha data hang hang. Boholo ba lihlahisoa tsa Welch Allyn li sebelisa memori ea flash ho nkela li-PROM tsa mantlha sebaka, ho etsa hore sehlahisoa se ntlafatsoe haholoanyane. HHLC (Hand Held Laser Compatible): Li-terminals tse ling ntle le thepa ea ho etsa li-decoding li ka sebelisa sesebelisoa sa kantle ho buisana feela. Protocol ea mokhoa ona oa puisano, o tsejoang ka hore ke laser simulation, e sebelisoa ho hokahanya CCD kapa sebali sa laser le kantle Seta decoder. RS-232 (Recommended Standard 232): Tekanyetso ea TIA/EIA bakeng sa phetisetso ea seriale lipakeng tsa likhomphutha le li-peripheral tse kang sebali sa barcode, Modem, le litoeba. RS-232 hangata e sebelisa plug ea 25-pin DB-25 kapa 9-pin plug DB- 9. Sebaka sa puisano sa RS-232 hangata se ka har'a 15.24m. Haeba thapo e betere e sebelisoa, sebaka sa puisano se ka lelefatsoa.