2D bar code(2-dimensional bar code) inonyora ruzivo rwechiratidzo che data uchishandisa mifananidzo yakasviba-uye-chena yakagoverwa mundege (mbiri-dimensional direction) maererano nemimwe mitemo mune imwe geometry yakapiwa. Mukubatanidza kodhi, pfungwa dze' 0 'uye' 1 ' bit streams, iyo inoumba yemukati logic hwaro hwekombuta, inoshandiswa nehungwaru. Maumbirwo akawanda ejometri anoenderana nebhanari anoshandiswa kumiririra ruzivo rwenhamba rwechinyorwa, uye ruzivo rwunogadziriswa otomatiki kuverenga kwechigadzirwa chekuisa mufananidzo kana chigadziriso chepikicha. Iyo ine mamwe maitiro akajairika eiyo bar code tekinoroji: kodhi yega yega ine yayo chaiyo yakatarwa seti. Chimiro chega chega chine hupamhi hwakati. Iine imwe verification function. Panguva imwecheteyo, ine zvakare basa rekuzivikanwa kweotomatiki yemitsara yakasiyana yeruzivo uye kugadzirisa magiraidhi ekutenderera shanduko mapoinzi.
2D kodhi ndiyo yakanyanya kukwirisa bar kodhi fomati kupfuura 1d kodhi. 1d kodhi inogona chete kuratidza ruzivo munzira imwe (kazhinji yakachinjika nzira), nepo 2d kodhi inogona kuchengeta ruzivo mune ese ari maviri akachinjika uye akatwasuka nzira. 1d kodhi inogona chete kuumbwa nenhamba uye mavara, nepo 2d kodhi inogona kuchengeta ruzivo rwakadai seChinese mavara, manhamba uye mapikicha, saka iyo ndima yekushandisa ye2d kodhi yakakura kwazvo.
Zvinoenderana nemusimboti we2d kodhi, maviri-dimensional kodhi inogona kukamurwa kuita mapoka maviri: matrix 2d kodhi uye akaturikidzana / mutsara 2d kodhi.
Matrix 2d kodhi Matrix 2d kodhi, inozivikanwawo se chessboard 2d kodhi, yakavharidzirwa munzvimbo ine rectangular nekugoverwa kwakasiyana kwepikseli nhema nechena mune matrix. Munzvimbo inoenderana yenzvimbo yematrix, iyo bhinari '1' inomiririrwa nekutaridzika kwemapoinzi ( mapoinzi mativi, denderedzwa mapoinzi kana mamwe maumbirwo), uye iyo bhinari '0' haimiririrwe nekuonekwa kwemapoinzi. Kubvumidzwa uye kusanganiswa kwemapoinzi kunotaridza chirevo chinomiririrwa nematrix 2d barcode. Matrix 2d bar kodhi imhando nyowani yeotomatiki graphic chiratidzo chekuzivikanwa uye kugadzirisa kodhi system yakavakirwa pakombuta yekugadzira mifananidzo yekugadzira uye yakasanganiswa coding musimboti. Iyo inomiririra matrix 2d barcode ndeye QR Code, Data Matrix, MaxiCode, Han Xin Code, Grid Matrix, nezvimwe.
QR Code
QR Code ndeyeKurumidza Response Code inokurumidza mhinduro matrix kodhi, inozivikanwawo seDenso QR Code. Iyo matrix 2d bar code yakamisikidzwa nemasangano epasi rose, iyo yakatanga kuvandudzwa neDenso, Japan, munaGunyana 1994. Chiyero chenyika yeChinese chakaidaidza kuti fast response matrix code. Pamusoro pehunhu hwe1d bar kodhi, ine zvakare mabhenefiti ehukuru hweruzivo ruzivo, kuvimbika kwepamusoro, nzvimbo diki yekugara, kunyatsogadziriswa kweakasiyana ruzivo ruzivo, inotsigira 360 ° kupokana kwekutungamira kodhi kuverenga, kumwe kukanganisa kukanganisa, uye kuvanzika kwakasimba. uye anti-yekunyepedzera. Tsigira ASCII mavara uye yakafara ASCII mavara.
Micro QR inzira nyowani ye2d yekukodha yakakurudzirwa muISO: 2006 gwaro, yakafanana neQR. Nekudaro, zvichienzaniswa neQR 2d kodhi, Micro QR ine zvinotevera maitiro: chiratidzo chimwe chete chekutsvaga chinodiwa, uye vhoriyamu idiki.
Data Matrix
Data Matrix, yakatanga kunzi Data code, yakagadzirwa neInternational Data Matrix (ID Matrix) muna 1989. Data Matrix inogona kukamurwa kuita ECC000-140 uye ECC200, ECC200 inonyanya kushandiswa. Data Matrix inotsigira ASCII mavara uye yakafara ASCII mavara. inowanzo shandiswa kune diki vhoriyamu chigadzirwa serial nhamba yekuzivikanwa.
Grid Matrix
Grid Matrix, inonzi GM kodhi, ikona 2d kodhi. Iyo kodhi dhizaini inoumbwa ne square macro modules, uye yega yega macro module inoumbwa ne6 × 6 square unit.
Yakaturikidzwa / yakamisikidzwa 2d kodhi
Iyo stacking / mutsara-inofanana 2d bar kodhi inonziwo stacking 2d bar kodhi kana layer-parallel 2d bar kodhi. Nheyo yayo yekukodha yakavakirwa pa1d bar kodhi, iyo yakaiswa mumitsara miviri kana kupfuura sezvinodiwa. Iyo inogara nhaka humwe hunhu hwe1d bar kodhi mukodhi dhizaini, yekusimbisa musimboti uye maitiro ekuverenga. Midziyo yekuverengera inowirirana nebar code kudhinda uye 1d bar code tekinoroji. Nekudaro, nekuda kwekuwedzera kwenhamba yemitsara, zvinodikanwa kuti uone mitsara, uye iyo decoding algorithm haina kunyatsofanana nesoftware. Anomiririra mutsara mhando 2d bar kodhi : PDF417 (inowanzo shandiswa), Micro PDF417, Code 16K, CODABLOCK F, Code 49, nezvimwe.
PDF 417
PDF417 parizvino ndiyo inonyanya kushandiswa yakaturikidzana 2d kodhi. Iyo bar kodhi imhando yepamusoro density bar kodhi, munzvimbo imwechete kupfuura yakajairwa 2d kodhi inogona kugamuchira rumwe ruzivo. Inoshandiswa zvakanyanya mumatikiti erotari, matikiti emhepo, maficha ekuverenga ID.
Kutsvaga mutengo wakachipa uyeyepamusoro mhando barcode scannerzvebhizimusi rako?
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Nguva yekutumira: Nov-22-2022