Kokuhlaziya barcode. inkcazelo eluncedo

Eli nqaku liza kuchaza ukuba yeyiphi ikhowudi bar kokuhlaziya, apho lula nokurekhodwa ulwazi.

Yebhakhowudi ebizwa ulwazi encoded funda yi izixhobo ezikhethekileyo. Lisetyenziswa kwi phakheji, kubonakala ngathi kwamalungu omzimba. Ikhowudi bar nga encoder ulwazi malunga ezinye i parameters ebalulekileyo iimveliso.

Eyona EAN iqhelekileyo (inkqubo ikhowudi yaseYurophu) kunye Universal Product American Code UPC.

into zokucazulula Indlela ikhowudi ibha? Okunye ngaloo ngezantsi.

Ubume ulwazi ufakwe iquka:

- ilizwe ikhowudi imvelaphi, ngokuqhelekileyo amanani amabini okanye amathathu;

- code lomenzi - a dijithi ezine okanye ezintlanu - konke oku kuxhomekeke ubude ikhowudi yelizwe;

- phambili amanani amahlanu - igama lemveliso, iimpawu zayo umbala, ubunzima, ubungakanani, kunye nomthengi;

- imivo yokugcina engu - ukulawulwa, ethi isetyenziswe ukuqinisekisa ukuchaneka ukufunda barcode isithwebuli.

Maxa wambi kukho umqondiso ngasekunene ">", nto leyo ithetha ukuba ukukhululwa kwempahla ngaphantsi mvume.

yebhakhowudi kokuhlaziya inika ulwazi oluninzi olubalulekileyo malunga ne-mveliso.

Ukuze uqinisekise i ntiyiso ikhowudi bar okanye hayi, izibalo zilandelayo kufuneka lwenziwe. Dibanisa yonke amanani akhiwe kwi nokuba emhlabeni. Emva koko phinda inani waba ezintathu. Gcina yoko, siya Ndizakuyibiza ngo "X".

amanani Ezinye siphindwe (kodwa ngaphandle inombolo yesalathiso) zicwangciswe endle emnqakathi, le mali iya kongezwa kwinani "X" ifunyenwe ngaphambili. Imali, nto yeza (ukukubiza «YZ»), ngokuxhomekeke kuphela Z. Okulandelayo, senza inyathelo elula: 10- Z.

Ukuba inani osele efumaniwe, ngokufanayo njengoko checksum adweliswe kwebhakhowudi, umba siyinyaniso. Ukuba akumelanga kunga, ngoko ke imveliso ngaphandle ngokuvumelana nomthetho.

Kokuhlaziya yebhakhowudi onokuchaza ulwazi malunga ilizwe apho impahla yavelisa, inombolo yesazisi le nkampani, igama le mveliso.

Olu lwazi encoding lusetyenziswa kulo lonke ihlabathi. Ngoko ke, cinga iindidi barcodes.

Enye kwebhakhowudi elula "2 ka-5". Iimpawu ezibonisa amanani ukusuka kwiqanda ukuya elithoba, kukodwa liqulathe iilayini ezintlanu, ezimbini kuzo ububanzi, ezintathu - elimxinwa.

Izikhewu phakathi kwamalungu omzimba ezo akusayi kusa naziphi na iinkcukacha kwaye idla ububanzi abana ilingana ububanzi a bar elimxinwa. Le khowudi, ukongeza amanani, iqulethe abalinganiswa 'ukuqala "kunye" ukuyeka ". kushiywa nje ezintathu ezisetyenziswa womfanekiso wabo, apho ezimbini abanzi. Nemisantsa ekhoyo kwizakhono nolwazi, bangathwali ikhowudi "2 ka-5" uthotho ekhethekileyo, ngoko zenze kube lula ukuba elizakushicilelwa kwaye ngokuzenzekelayo ibhaqwe impazamo enye.

Okwangoku, i bar ikhowudi impahla kungaba multi-elimbala.

Code "Codabar" i semielementnym barcode ekhethekileyo. Iqulethe amanani ukusuka kwiqanda ukuya elithoba, imiqondiso "-" yaye "+", "/", ":" digits 4 "qala / ayeke 'yaye uphawu lwedola". ". ibha "Codabar" ikhowudi kwi ekhohlo kunye nelungelo zimpawu ntweni. Uphawu ikhangeleka ngathi i-stroke emine kunye neendawo ezintathu.

ikhowudi ye-bha "39" ke ngoko igama ngenxa ubume umfanekiso abalinganiswa "3 no-9" abanzi apho izinto ezintathu (gap omnye nobetho ezimbini) kwalithoba emxinwa - enye ezintandathu. Le khowudi linokuthenjwa ngokwaneleyo, yaye yintoni ubonisa inzuzo yakhe. Kwakhona, ukuthembeka ikhowudi enjalo angandiswa ngokudibanisa umlinganiswa zolawulo umlinganiswa.

imveliso yebhakhowudi yindlela nokurekhodisha ulwazi.

A indawo ekhethekileyo phakathi kwinkqubo ezahlukeneyo bar-ikhowudi kuthatha i bar ikhowudi "93". Ngenxa efanayo lamasuntswana kulwazi njengoko ikhowudi "39", ingaba umfanekiso ezixineneyo zabalinganiswa. Ezingamashumi amane anesibhozo iisimboli abasemifanekisweni kwi "93" ikhowudi. Oku kuquka iimpawu "qala / ayeke 'uphawu wolawulo ezine kunye amanani amane ezintathu ikhowudi" 39 ".

Bakwazi uku encoder i abalinganiswa ezahlukeneyo elinamanci mabini anesibhozo enxulumene igama bar khowudi "128". Ikhowudi "128" - ikhowudi engalawulwanga elahliweyo kwaye ngokuqhubekayo. iimpawu zayo ziquka imivalo emithathu izithuba ezithathu, kwaye ubude ngamnye iimodyuli elinanye.

Siye sahlolisisa ezinye iintlobo kweekhowudi bar ukuba udliwa ehlabathini lonke.