2D bar khoutu( 2-dimensional bar code ) e tlaleha boitsebiso ba matšoao a data ho sebelisa litšoantšo tse ntšo le tse tšoeu tse ajoang ka sefofaneng ( tataiso ea mahlakore a mabeli ) ho latela melao e itseng ho geometry e fanoeng. Ho kopanngoeng ka khoutu, mehopolo ea ' 0' le '1' bit streams, e leng motheo oa logic ea ka hare ea k'homphieutha, e sebelisoa ka bohlale. Libopeho tse 'maloa tsa geometri tse tsamaellanang le binary li sebelisoa ho emela lintlha tsa linomoro tsa mongolo,' me tlhahisoleseling e sebetsoa ka bo eona ho bala ka mokhoa o iketsang oa sesebelisoa sa ho kenya setšoantšo kapa sesebelisoa sa ho lekola lifoto. E na le litšobotsi tse tloaelehileng tsa thekenoloji ea khoutu ea bar : khoutu e 'ngoe le e' ngoe e na le sete ea eona e khethehileng. Sebapali se seng le se seng se na le bophara bo itseng. E na le ts'ebetso e itseng ea netefatso. Ka nako e ts'oanang, e boetse e na le ts'ebetso ea ho lemoha ka mokhoa o itekanetseng oa mela e fapaneng ea tlhahisoleseding le ho sebetsana le lintlha tsa phetoho ea li-graph.
Khoutu ea 2D ke sebopeho se tsoetseng pele sa barcode ho feta khoutu ea 1d. Khoutu ea 1d e ka hlahisa tlhahisoleseling ka nqa e le 'ngoe feela (hangata e tšekaletse), athe khoutu ea 2d e ka boloka tlhahisoleseling ka tsela e otlolohileng le e otlolohileng. Khoutu ea 1d e ka etsoa feela ka linomoro le litlhaku, ha khoutu ea 2d e ka boloka tlhahisoleseling joalo ka litlhaku tsa Sechaena, linomoro le litšoantšo, kahoo sebaka sa ts'ebeliso ea khoutu ea 2d se pharalletse haholo.
Ho latela molao-motheo oa khoutu ea 2d, khoutu ea mahlakore a mabeli e ka aroloa ka mekhahlelo e 'meli: khoutu ea matrix 2d le khoutu e behiloeng / mola 2d.
Khoutu ea Matrix 2d Matrix 2d khoutu, eo hape e tsejoang e le chessboard 2d khoutu, e kentsoe sebakeng sa khutlonnetsepa ka liphaello tse fapaneng tsa lipikselse tse ntšo le tse tšoeu ka har'a matrix. Sebakeng se ts'oanang sa matrix, binary '1' e emeloa ke ponahalo ea lintlha (lintlha tse lisekoere, lintlha tse chitja kapa libopeho tse ling), 'me binary '0' ha e emeloe ke ponahalo ea lintlha. Tumello le motsoako oa lintlha li khetholla moelelo o emeloang ke matrix 2d barcode. Matrix 2d bar code ke mofuta o mocha oa ho lemoha matšoao a boiketsetso le mokhoa oa ho sebetsa oa khoutu o ipapisitseng le theknoloji ea ts'ebetso ea litšoantšo tsa komporo le molao-motheo o kopaneng oa likhoutu. Li-barcode tsa matrix tsa 2d ke QR Code, Data Matrix, MaxiCode, Han Xin Code, Grid Matrix, joalo-joalo.
Khoutu ea QR
QR Code ke Khoutu ea Karabelo e Potlakileng, e tsejoang hape ka hore ke Denso QR Code. Ke matrix 2d bar code e hlophisitsoeng ke mekhatlo ea machaba, e qalileng ho ntlafatsoa ke Denso, Japane, ka September 1994. Tekanyetso ea naha ea Chaena e bitsitse khoutu ea matrix e potlakileng. Ntle le litšoaneleho tsa 1d bar code, e boetse e na le melemo ea bokhoni bo boholo ba tlhaiso-leseling, ts'epo e phahameng, mosebetsi oa sebaka se senyane, ts'ebetso e sebetsang ea tlhaiso-leseling e fapaneng ea mongolo, e ts'ehetsa ho bala khoutu ea tataiso ea 360 °, bokhoni bo itseng ba ho lokisa liphoso, le lekunutu le matla. le kgahlanong le ho qhekella. Tšehetsa litlhaku tsa ASCII le litlhaku tse pharaletseng tsa ASCII.
Micro QR ke mokhoa o mocha oa ho khouta oa 2d o hlahisitsoeng ho ISO : tokomane ea 2006, e ts'oanang le QR. Leha ho le joalo, ha e bapisoa le khoutu ea QR 2d, Micro QR e na le litšobotsi tse latelang: ho hlokahala letšoao le le leng feela la ho batla, 'me molumo o monyenyane.
Data Matrix
Data Matrix, eo qalong e neng e bitsoa Data code, e qapiloe ke International Data Matrix (ID Matrix) ka 1989. Data Matrix e ka aroloa ka ECC000-140 le ECC200, ECC200 e sebelisoa hangata. Data Matrix e tšehetsa litlhaku tsa ASCII le litlhaku tse pharaletseng tsa ASCII. e sebelisoa ka kakaretso bakeng sa ho tsebahatsa nomoro ea serial ea lihlahisoa tse nyane.
Grid Matrix
Grid Matrix, eo ho thoeng ke GM code, ke square 2d code. Setšoantšo sa khoutu se entsoe ka li-square macro modules, 'me module e' ngoe le e 'ngoe e kholo e entsoe ka li-square unit tsa 6x6.
Khoutu e behiloeng / e kentsoeng ka 2d
Khoutu ea bar ea stacking / row-parallel 2d e boetse e bitsoa stacking 2d bar code kapa layer-parallel 2d bar code. Molao-motheo oa eona oa likhoutu o ipapisitse le khoutu ea 1d, e kentsoeng ka mela e 'meli kapa ho feta kamoo ho hlokahalang. E rua litšoaneleho tse ling tsa khoutu ea 1d ka moralo oa likhoutu, molao-motheo oa netefatso le mokhoa oa ho bala. Thepa ea ho bala e tsamaellana le khatiso ea khoutu ea bar le theknoloji ea 1d bar code. Leha ho le joalo, ka lebaka la ho eketseha ha palo ea mela, hoa hlokahala ho tseba mela, 'me algorithm ea decoding ha e tšoane hantle le software. Mofuta oa moemeli oa mofuta oa 2d bar khoutu : PDF417 (e sebelisoang hangata), Micro PDF417, Code 16K, CODABLOCK F, Code 49, joalo-joalo.
Setšoantšo sa 417
PDF417 hajoale ke khoutu ea 2d e sebelisoang ka ho fetesisa. Khoutu ea bar ke mofuta oa "bar code" e phahameng haholo, sebakeng se le seng ho feta khoutu e tloaelehileng ea 2d e ka amohelang tlhahisoleseling e ngata. E sebelisoa haholo liteketeng tsa lotho, litekete tsa sefofane, litšoantšiso tsa ho bala ID.
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Nako ea poso: Nov-22-2022