Yintoni iQR Code kwaye Isebenza Njani?

IQR Code (Quick Response Code) yibarcode ye-2D emile okwesikwere eyakhiwe ngezikwere ezincinci ezimnyama nezimhlophe. Ngokwahlukileyo kwibarcode yemigca egcina amanani alishumi elinesithathu nje kuphela, iQR Code ingagcina ikhonkco lewebhusayithi, umbhalo omde, inombolo yefowuni, iinkcukacha zoqhagamshelwano, kwanedatha yenethiwekhi yeWiFi.

IQR Code yaphuhliswa ngo-1994 yiDenso Wave, inkampani yaseJapan, ukulandelela iindawo zezithuthi kwimizi-mveliso. Namhlanje iQR Code isetyenziswa kuyo yonke indawo, ukusuka kwiintlawulo zedijithali ukuya kwiimenyu zeerestyu, kuba ingaskenwa ngqo ngekhamera yefowuni.

Iinxalenye zeQR Code

Izikwere ezintathu ezinkulu ezikoneni (finder pattern): zinceda ikhamera ifumane iQR Code kwaye yazi icala layo, ukuze iQR Code isafundeka nokuba iskenwa ithambekile okanye ijonge ezantsi.
Ipateni yolungelelwaniso (alignment pattern): isikwere esincinci esinceda ukufunda iQR Code egobileyo okanye ebonwa ngecala.
Indawo yedatha: izikwere ezincinci eziqulethe ulwazi enilugcinayo.
Indawo ezolileyo (quiet zone): indawo engenanto ejikeleze iQR Code ukuze kube lula ukuyahlula kwimvelaphi.

Ingagcina idatha engakanani?

IQR Code ineenguqulelo ezingama-40 zobukhulu. Uguqulelo olukhulu lungagcina ukuya kuthi ga kumanani angama-7.089 okanye malunga nee-byte ezingama-2.953 zedatha. Ngokwenyani, okukhona idatha egciniweyo incinci, kokukhona izikwere zinkulu kwaye iQR Code ilula ukuskena. Ngenxa yoko, ikhonkco elifutshane lingcono kunekhonkco elide kakhulu.

Yonke iQR Code yakhiwe ngezikwere ezincinci ezimnyama nezimhlophe.Ifoto: Mitya Ivanov

Isafundeka nokuba yonakele

IQR Code isebenzisa ukulungiswa kweempazamo (error correction). Kukho amanqanaba amane:

L: idatha isenokubuyiselwa ukuba malunga ne-7% yeQR Code yonakele.
M: malunga ne-15%. Olu lukhetho oluqhelekileyo nolulungelelanisiweyo.
Q: malunga nama-25%.
H: malunga nama-30%, lulungele iQR Code eza kufakwa ilogo okanye ishicilelwe kwindawo engcolisekayo lula.

Okukhona inqanaba lokulungisa liphezulu, kokukhona kufuneka izikwere ezininzi, ngoko ke ipateni yeQR Code ibonakala ixinene ngakumbi.

Yintoni enokugcinwa kwiQR Code?

Ikhonkco lewebhusayithi, ivenkile ye-intanethi, okanye ifomu.
Idatha yeWiFi, ukuze iindwendwe zikwazi ukudibana ngaphandle kokuchwetheza iphasiwedi. Jongani isikhokelo seQR Code yeWiFi.
Ikhadi leshishini ledijithali (vCard), i-imeyile, i-SMS, kunye nencoko ye-WhatsApp.
Indawo kwimephu kunye neshedyuli yomnyhadala.

IQR Code engatshintshiyo neguqukayo

IQR Code eyenziwe ngqo ngedatha ibizwa ngokuba yiQR Code engatshintshiyo (static): umxholo wayo ufakwe emfanekisweni kwaye awunakutshintshwa, kodwa ayiphelelwa lixesha. IQR Code eguqukayo (dynamic) iqulethe ikhonkco elifutshane lenkonzo ethile elithi emva koko linise apho niya khona; indawo eniya kuyo ingatshintshwa, kodwa iQR Code iya kuyeka ukusebenza ukuba loo nkonzo iyayeka. Kwiimfuno ezininzi, iQR Code engatshintshiyo yanele kwaye ikhuselekile ngakumbi ixesha elide.

Ningathanda ukuzama? Yenzani iQR Code simahla ngoku, okanye funda indlela yokwenza iQR Code ngamanyathelo ama-3.

Imibuzo Ebuzwa Rhoqo

Ingaba iQR Code ingaphelelwa lixesha?

IQR Code engatshintshiyo (static) ayiphelelwa lixesha kuba idatha yayo ifakwe ngqo emfanekisweni. IQR Code eguqukayo (dynamic) ingayeka ukusebenza ukuba inkonzo ebonelela ngekhonkco layo iyayeka okanye umrhumo uphelile.

Ingakanani idatha enokugcinwa yiQR Code?

Uguqulelo olukhulu lweQR Code lungagcina ukuya kuthi ga kumanani angama-7.089 okanye malunga nee-byte ezingama-2.953. Nangona kunjalo, okukhona idatha incinci, kokukhona iQR Code ilula ukuskena.

Ingaba iQR Code isafundeka ukuba inxalenye yayo yonakele?

Ewe. Ngenxa yokulungiswa kweempazamo, iQR Code isafundeka nokuba malunga ne-7% ukuya kuma-30% yayo yonakele, kuxhomekeke kwinqanaba lokulungisa u-L, M, Q, okanye H elisetyenzisiweyo.