Nyopụta barcode. aka

Isiokwu a ga-akọwa ihe nyopụta mmanya koodu, site nke mfe ndekọ nke ozi.

Barcode akpọ itinye na koodu ozi na-agụ site na pụrụ iche na ngwaọrụ. Ọ na-etinyere na ngwugwu, ya anya ka ọnụ ụtarị. The mmanya koodu nwere ike encode ọmụma banyere ụfọdụ n'ime ihe dị mkpa afọ nke ngwaahịa.

The kasị EAN (European nzuzo usoro) na American Universal Product Code UPC.

Olee otú nyopụta a mmanya koodu? More na na n'okpuru.

Ọdịdị nke ahụ itinye na koodu ozi na-agụnye:

- mba onye si koodu, na-emekarị abụọ ma ọ bụ atọ digits;

- emeputa koodu - a anọ ma ọ bụ ise digits - ya niile na-adabere ogologo nke koodu obodo;

- n'ihu ise nọmba - aha nke ngwaahịa, ya agba, ibu, size, na n'ji Njirimara;

- asatọ ikpeazụ digits - akara, nke a na-eji nyochaa correctness nke na-agụ barcode nyocha.

Mgbe ụfọdụ, e nwere ihe ịrịba ama na nri ">", nke pụtara na ntọhapụ nke ibu n'okpuru ikikere.

Nyopụta barcode na-enye ọtụtụ ozi dị mkpa banyere ngwaahịa.

Iji nyochaa ezi mmanya koodu ma ọ bụ, ndị na-esonụ mgbawa ga-eme. Tinye niile nọmba na-na-emi odude na ọbụna n'ala. Mgbe ahụ mụbaa n'ihi nchikota site atọ. Zọpụta N'ihi ya, anyị ga-akpọ ya "X".

Ọzọkwa apịaji nọmba (ma na-enweghị akwụkwọ nọmba) ndokwa na iberibe ubi, a nchikota na-agbakwunyere na nọmba "X" nwetara mbụ. Nke ego, nke tụgharịa si (anyị na-akpọ ya «YZ»), isiokwu naanị Z. Next, anyị ịrụ a mfe edinam: 10- Z.

Ọ bụrụ na ọnụ ọgụgụ nke e nyere, otu dị ka ndị checksum depụtara na barcode, ihe bụ ezigbo. Ọ bụrụ na ọ na-adịghị dakọtara, mgbe ngwaahịa e mere na-enweghị agbaso iwu.

Nyopụta barcode pụrụ ikpughe ihe ọmụma banyere mba ndị na-emepụta, njirimara nọmba nke ụlọ ọrụ, na aha nke ngwaahịa.

Nke a ngbanwe na-eji ozi n'ụwa nile. Otú ahụ, tụlee ụdị nke barcodes.

Otu n'ime ndị kacha barcode bụ "2 of 5". Ihe ịrịba ama na-egosi na ọnụ ọgụgụ site na efu na itoolu, ya onwe ya nwere ise edoghi, abụọ nke ndị nile, ma na atọ - warara.

Gaps n'etiti ọrịa strok nke na-adịghị ebu ọ bụla data na-abụkarị ọdịiche obosara nhata obosara nke a warara mmanya. Nke a koodu, na mgbakwunye na digits, nwere odide "amalite" na "kwụsị". Dị nnọọ atọ ọrịa strok eji na ha image, nke abụọ bụ sara mbara. Gaps nke ọmụma adịghị ibu koodu "2 of 5" usoro nke pụrụ iche, ya mere, mee ka ọ dị mfe na-ebipụta ma na-akpaghị aka ahụrụ otu njehie.

Ugbu a, ndị mmanya na koodu nke ngwaahịa nwekwara ike ịbụ multi-acha.

Usoro "Codabar" bụ a pụrụ iche semielementnym barcode. O nwere nọmba efu itoolu, ihe ịrịba ama "-" na "+", "/", ":" 4 digits "amalite / ịkwụsị" na dollar ịrịba ama ".". mmanya "Codabar" koodu na ekpe na nri na-adịchaghị ịrịba ama. The ịrịba ama-anya dị ka a anọ na-ọrịa strok na atọ oghere.

Bar koodu "39" bụ otú aha ya bụ n'ihi na nke ihe owuwu nke ihe oyiyi nke ihe odide "3 9" bụ sara mbara ebe atọ ọcha (otu ọdịiche na abụọ ọrịa strok) nke itoolu warara - isii ndị ọzọ. Nke a koodu bụ pụrụ ịdabere na-ezuru, na ihe na-egosipụta ya uru. Ọzọkwa, ndị a pụrụ ịdabere dị otú ahụ a na koodu nwere ike mụbara site na-agbakwụnye a akara agwa na agwa.

Barcode ngwaahịa a bụ ụzọ nke Ndekọ ọmụma.

A pụrụ iche n'etiti ndị dị iche iche na mmanya-nzuzo usoro-ewe mmanya koodu "93". Na otu set of ọmụma digits dị ka koodu "39", ọ nwere ike inye a elu njupụta image of odide. Iri anọ na asatọ na akara ẹwụtde ke "93" koodu. Ọ na-agụnye ihe ịrịba ama "na-amalite / ịkwụsị" akara ịrịba ama anọ na iri anọ na atọ digits nke koodu "39".

Na ike na-encode a na ọgu iri-na-asatọ dị iche iche na-agụ akụkọ metụtara aha nke mmanya koodu "128". The koodu "128" - a na-achịkwaghị achịkwa na-aga n'ihu koodu. Ya ihe ịrịba ama na-agụnye atọ Ogwe na atọ oghere, na onye ọ bụla ogologo bụ iri na otu modul.

Anyị atụlewo ụfọdụ iche iche nke mmanya codes na na-enwe n'ụwa nile.