Kulungiswa ibhakhodi. ulwazi oluwusizo

Lesi sihloko sizokusiza ukuthi ikhodi emagama ibha, ngawo lula ukuqopha kolwazi ukuchaza.

Barcode ngokuthi ulwazi anekhodi engafundwa amadivayisi ezikhethekile. It isetshenziswa iphakethe, kubukeka sengathi imivimbo. Ikhodi ibha kungaba encode ulwazi mayelana ezinye nemingcele ezibalulekile imikhiqizo.

Ean ezivamile (European esephepheni uhlelo) kanye American Universal Product Code UPC.

Kanjani kulungiswa ikhodi ibha? Okuningi ngalolo ngezansi.

Isakhiwo ulwazi anekhodi kuhlanganisa:

- izwe ikhodi imvelaphi, ngokuvamile Izinombolo ezimbili noma ezintathu;

- Ikhodi kwabakhiqizi - a izinombolo ezine noma ezinhlanu - konke kuncike ubude ikhodi yezwe;

- eminye izinombolo ezinhlanu - igama lomkhiqizo, umbala, isisindo, isayizi, futhi umthengi yayo izakhiwo;

- zinyanga amadijithi eziyisishiyagalombili - control, esetshenziswa ukuqinisekisa ngokunemba kokufunda ibhakhodi Enani.

Ngezinye izikhathi kukhona uphawu ngakwesokudla ">", okusho ukuthi ukukhululwa kwezimpahla kungaphansi kwelayisensi.

ibhakhodi kulungiswa inikeza okuningi ulwazi olubalulekile mayelana nomkhiqizo.

Ukuze uqinisekise ikhodi kweqiniso ibha noma cha, kumelwe izibalo ezilandelayo luyaphumelela. Uma uhlanganisa zonke izinombolo ukuthi zitholakala ngisho phansi. Khona-ke uphindaphinde isamba okuholela ngehora lesithathu. Londoloza yalokho, siyoba bakubize ngokuthi "X".

izinombolo ephakeme eligoqiwe (kodwa ngaphandle inombolo yereferensi) ahlelwe emkhakheni lingalingani, madlana sengezwe inombolo "X" etholwe ngaphambili. Of lemali, okwathi kamuva laba (sikubiza «YZ»), kuncike kuphela Z. Ngokulandelayo, senza isenzo esilula: 10- Z.

Uma inombolo itholiwe, kuyafana checksum ezisohlwini ibhakhodi, into eyiqiniso. Uma-ke ayifani, ke umkhiqizo senziwa ngaphandle umthetho.

Kulungiswa ibhakhodi kungembula ulwazi mayelana izwe lapho izimpahla ezikhiqizwa, inombolo ukuhlonza inkampani, igama lomkhiqizo.

Lolu lwazi wekhodi isetshenziswa kuwo wonke umhlaba. Ngakho, cabangela izinhlobo barcodes.

Omunye ibhakhodi elula "2 5". Izimpawu ezibonisa izinombolo kusuka zero kuya eziyisishiyagalolunye, ngokwako iqukethe imigqa emihlanu, emibili yayo ebanzi, futhi abathathu - emincane.

Izikhala phakathi imivimbo ezingavikelekile baphathe noma iyiphi idatha futhi ngokuvamile ububanzi igebe lilingana ububanzi ibha emincane. Le khodi, ngaphezu amadijithi, linezinhlamvu "ukuqala" futhi 'siyeke ". unhlangothi ezintathu nje esetshenziswa isithombe sabo, ezimbili abanzi. Izikhala kolwazi ingasheshi ikhodi "2 5" uchungechunge leyehlukene, ngakho enza kube lula ukunyathelisa futhi ngokuzenzakalelayo Kutholwe iphutha elilodwa.

Okwamanje, ikhodi ibha kwezimpahla kungaba futhi multi-anemibala.

Ikhodi "Codabar" kuyinto leyehlukene semielementnym ibhakhodi. Iqukethe izinombolo kusuka zero kuya eziyisishiyagalolunye, izimpawu "-" futhi "+", "/", ":" amadijithi 4 "qala / yeka" isibonakaliso dollar ".". ibha "Codabar" ikhodi ngakwesokunxele kanye ilungelo izimpawu elinganiselwe. Isibonakaliso ifana-stroke ezine futhi izikhala ezintathu.

Ikhodi Bar "39" is ibizwa kanjalo ngoba isakhiwo umfanekiso izinhlamvu "3 kanye 9" ebanzi lapho tincenye letintsatfu (owodwa-gap kanti futhi ezimbili unhlangothi) we ayisishiyagalolunye ewumngcingo - leminye eyisithupha. Le khodi okunokwethenjelwa ngokwanele, futhi yini ububonisa izinto zimhambele kahle. Futhi, ukuthembeka ikhodi okunjalo zingandiswa ngokungeza uhlamvu okulawula uhlamvu.

Barcode umkhiqizo iyindlela ukuqopha ulwazi.

Indawo ekhethekile phakathi ahlukahlukene ibha yesistimu-esephepheni uthatha ikhodi ibha "93". Nge isethi efanayo amadijithi ulwazi ikhodi "39", kungaba ahlinzeke eliphezulu kwabantu isithombe kwezinhlamvu. Amane nesishiyagalombili izimpawu nokuboniswe "93" ikhodi. Kuhlanganisa izimpawu "qala / yeka" ukulawula uphawu amane amane amadijithi amathathu ikhodi "39".

With ikhono encode izinhlamvu ezahlukene namashumi amabili nesishiyagalombili ezihambisana igama ikhodi ibha "128". Ikhodi "128" - ikhodi nenza okuqhubekayo. izimpawu zalo zakhiwa Amabha amathathu futhi izikhala ezintathu, nobude ngamunye amamojuli nanye.

Sesihlole ezinye izinhlobo bar amakhodi ezijatshulelwa emhlabeni wonke.