2D bar code( 2-geesoodka bar code) diiwaanada macluumaadka astaanta xogta iyadoo la isticmaalayo garaafyada madow iyo caddaanka ah ee loo qaybiyay diyaarad (jihada laba-geesoodka ah) iyadoo la raacayo xeerarka qaarkood ee joomatari la bixiyay. Isku-dubarid koodhka, fikradaha '0' iyo '1' qulqulka yaryar, kuwaas oo ka kooban saldhigga macquulka ah ee kombiyuutarka, ayaa si xariif ah loo isticmaalaa. Dhowr qaab oo joomatari ah oo u dhigma binary-ga ayaa loo adeegsadaa si ay u matalaan xogta nambarada qoraalka, macluumaadkana si toos ah ayaa looga baaraandegi doonaa akhrinta tooska ah ee aaladda gelinta sawirka ama aaladda sawir-qaadista sawir-qaadista. Waxay leedahay qaar ka mid ah sifooyinka guud ee tignoolajiyada bar code-ka: kood kastaa wuxuu leeyahay astaamo u gaar ah. Dabeecad kastaa waxay leedahay ballac gaar ah. Waxay leedahay hawl xaqiijineed gaar ah. Isla mar ahaantaana, waxay sidoo kale leedahay shaqada aqoonsiga tooska ah ee safafka kala duwan ee macluumaadka iyo habaynta dhibcaha beddelka wareegyada garaafyada.
Koodhka 2D waa qaab kood ka horumarsan oo ka badan 1d code. Koodhka 1d wuxuu kaliya ku sheegi karaa macluumaadka hal jiho (guud ahaan jihada toosan), halka koodka 2d uu ku kaydin karo macluumaadka jihooyin toosan iyo mid toosan labadaba. Koodhka 1d wuxuu ka koobnaan karaa nambaro iyo xarfo, halka code-ka 2d uu kaydin karo macluumaadka sida xarfaha Shiinaha, nambarada iyo sawirrada, sidaas darteed goobta cod-bixinta ee 2d code aad ayey u ballaaran tahay.
Marka loo eego mabda'a koodhka 2d, koodhka laba-geesoodka ah waxa loo qaybin karaa laba qaybood: koodhka 2d-ga ee matrixka iyo koodhka safka / safka 2d.
Matrix 2d code Matrix 2d code, oo sidoo kale loo yaqaan koodka chessboard 2d, waxa lagu calaamadeeyay meel bannaan oo leydi ah iyadoo loo qaybinayo piksels madow iyo caddaan ah ee shaxanka. Meesha cutubka u dhigma ee shaxanka, binary' 1' waxa uu u taagan yahay muuqaalka dhibcaha (dhibcood labajibbaaran, dhibco wareeg ah ama qaabab kale), binary' 0' laguma matalo muuqaalka dhibcaha. Dareenka iyo isku-darka dhibcaha ayaa go'aamiya macnaha uu matalayo barcode 2d matrix ah. Matrix 2d bar code waa nooc cusub oo aqoonsiga astaanta garaafyada otomaatiga ah iyo nidaamka koodhka habaynta ee ku salaysan tignoolajiyada habaynta sawirka kombiyuutarka iyo mabda'a codaynta oo la isku daray. Matrix 2d barcodes matale waa QR Code, Data Matrix, MaxiCode, Han Xin Code, Grid Matrix, iwm.
Koodhka QR
Koodhka QR waa koodhka jawaabta degdega ah ee koodhka jawaabta degdega ah, sidoo kale loo yaqaan Denso QR Code. Waa matrix 2d bar code oo ay habeeyeen hay'adaha caalamiga ah, kaas oo markii ugu horreysay ay samaysay Denso, Japan, Sebtembar 1994. Heerarka qaranka Shiinaha ayaa u yaqaan code-ka jawaabta degdegga ah. Marka lagu daro astaamaha koodka bar 1d, waxay sidoo kale leedahay faa'iidooyinka awoodda macluumaadka ballaaran, isku halaynta sare, shaqo yar oo bannaan, socodsiin wax ku ool ah oo macluumaad qoraal ah oo kala duwan, taageeridda 360 ° akhrinta koodhka jihada gardarrada, awoodda sixitaanka khaladaadka qaarkood, iyo sirta xooggan iyo ka hortagga been-abuurka. Taageer jilayaasha ASCII iyo jilayaasha ASCII ee ballaadhan.
Micro QR waa hab cusub oo 2d ah oo lagu soo jeediyay ISO: 2006 dukumeenti, oo la mid ah QR. Si kastaba ha ahaatee, marka la barbar dhigo QR 2d code, Micro QR waxay leedahay sifooyinka soo socda: hal calaamad oo kaliya ayaa loo baahan yahay, muggana waa ka yar yahay.
Xogta Matrix
Xogta Matrix, oo asal ahaan loogu magac daray Koodhka Xogta, waxa ikhtiraacay International Data Matrix (ID Matrix) 1989. Xogta Matrix waxa loo qaybin karaa ECC000-140 iyo ECC200, ECC200 ayaa inta badan la isticmaalaa. Xogta Matrix waxay taageertaa jilayaasha ASCII iyo jilayaasha ASCII ee ballaadhan. waxaa guud ahaan loo isticmaalaa aqoonsiga lambarka taxanaha alaabta mugga yar.
Grid Matrix
Matrix Grid, oo loo yaqaan GM code, waa kood labajibbaaran 2d. Jaantuska code wuxuu ka kooban yahay modules macro square, iyo module kasta oo macro ka kooban yahay 6×6 square unugyo.
Koodhka 2d ee xidhan/la safan
Koodhka bar-koodhka 2d-ku-salaysan / safafka-is-bar-bar yaacaya waxa kale oo loo yaqaan is-dul-saar 2d bar code ama lakab-barbar 2d bar kood. Mabda'a codayntu waxa uu ku salaysan yahay 1d bar code, kaas oo lagu ururiyay laba saf ama in ka badan marka loo baahdo. Waxa ay dhaxashay sifooyin ka mid ah koodka bar 1d ee naqshadaynta koodh, mabda'a xaqiijinta iyo habka akhriska. Qalabka wax-akhrinta ayaa ku habboon daabacaadda code-ka iyo tignoolajiyada 1d bar code. Si kastaba ha ahaatee, sababtoo ah kororka tirada safafka, waxaa lagama maarmaan ah in la go'aamiyo safafka, iyo algorithm-ka-dejinta ma aha mid la mid ah software-ka. Nooca safka wakiillada 2d code code: PDF417 (sida badan loo isticmaalo), Micro PDF417, Code 16K, CODABLOCK F, Code 49, iwm.
PDF 417
PDF417 hadda waa koodhka 2d ee ugu isticmaalka badan. Koodhka barku waa nooc ka mid ah koodka bar cufnaanta sare, isla goobtaas marka loo eego koodka 2d ee caadiga ah waxa uu qaadi karaa macluumaad dheeraad ah. Si ballaaran loo isticmaalo tigidhada bakhtiyaanasiibka, tigidhada hawada, goobaha akhriska aqoonsiga.
Raadinta qiimo jaban iyoiskaanka barcode tayo sare lehganacsigaaga ?
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