He Aha te QR Code, ā, Ka Pēhea Tōna Mahi?
Ko te QR Code (Quick Response Code) he barcode 2D āhua tapawhā rite, he mea hanga ki ngā tapawhā iti pango, mā hoki. Kāore i rite ki te barcode rārangi e pupuri ana i ētahi tekau mā ngā nama noa, ka taea e te QR Code te pupuri i te hono paetukutuku, i te kuputuhi roa, i te nama waea, i ngā taipitopito whakapā, tae noa ki ngā raraunga o tētahi whatunga WiFi.
I whakawhanakehia te QR Code i te tau 1994 e Denso Wave, he kamupene nō Hapani, hei aroturuki i ngā wāhanga waka i ngā wheketere. I ēnei rā kei ngā wāhi katoa te QR Code, mai i ngā utu matihiko tae noa ki ngā tahua kai o ngā wharekai, nā te mea ka taea te matawai tika ki te kāmera o te waea.
Ngā wāhanga o te QR Code
- Ngā tapawhā nunui e toru i ngā kokonga (finder pattern): ka āwhina i te kāmera ki te kimi i te QR Code me te mōhio ki tōna ahunga, nā reira ka taea tonu te pānui i te QR Code ahakoa ka matawaitia e titaha ana, e kōaro ana rānei.
- Tauira whakahāngai (alignment pattern): he tapawhā iti e āwhina ana ki te pānui i tētahi QR Code kua piko, kua kitea mai i te taha rānei.
- Te rohe raraunga: ngā tapawhā iti kei roto ngā mōhiohio ka penapenatia e koe.
- Te rohe mārie (quiet zone): he wāhi wātea huri noa i te QR Code kia māmā ai te wehe atu i tōna papamuri.
E hia te nui o ngā raraunga ka taea te pupuri?
E 40 ngā putanga rahi o te QR Code. Ka taea e te putanga nui rawa te pupuri tae atu ki te 7.089 nama, ki te tata ki te 2.953 paita raraunga rānei. Ā-mahi nei, ko te iti ake o ngā raraunga ka penapenatia, ko te nui ake o ngā tapawhā, ā, ko te māmā ake o te matawai i te QR Code. Koia te take he pai ake te hono poto i te hono tino roa.
Ka taea tonu te pānui ahakoa kua pakaru
Ka whakamahi te QR Code i te whakatika hapa (error correction). E whā ngā taumata:
- L: ka taea tonu te whakaora i ngā raraunga ki te pakaru te tata ki te 7% o te QR Code.
- M: tata ki te 15%. Koinei te kōwhiringa noa, he taurite hoki.
- Q: tata ki te 25%.
- H: tata ki te 30%, e tika ana mō te QR Code ka tāpirihia he waitohu (logo), ka tāngia rānei ki tētahi wāhi ka māmā te poke.
Ko te teitei ake o te taumata whakatika, ko te maha ake o ngā tapawhā e hiahiatia ana, nā reira ka āhua kikī ake te tauira o te QR Code.
He aha ngā mea ka taea te penapena ki te QR Code?
- Te hono o tētahi paetukutuku, o tētahi toa ipurangi, o tētahi puka rānei.
- Ngā raraunga WiFi, kia taea ai e ngā manuhiri te hono me te kore e pato i te kupuhipa. Tirohia te aratohu QR Code WiFi.
- He kāri pakihi matihiko (vCard), he īmēra, he SMS, me te kōrerorero WhatsApp.
- He tauwāhi i runga i te mahere me te wātaka o tētahi hui.
QR Code pūmau me te QR Code hihiko
Ko te QR Code ka hangaia tikatia mai i ngā raraunga ka kīia he QR Code pūmau (static): kua whakaurua ōna ihirangi ki te whakaahua, ā, kāore e taea te huri, engari kāore hoki e pau tōna wā. Ko te QR Code hihiko (dynamic) he hono poto tōna nā tētahi ratonga, kātahi ka arahina ki tō ūnga; ka taea te huri i te ūnga, engari ka mate te QR Code ki te mutu taua ratonga. Mō te nuinga o ngā hiahia, ka nui te QR Code pūmau, ā, he haumaru ake mō te wā roa.
Kei te hiahia whakamātau? Hangaia he QR Code koreutu ināianei, pānuitia rānei te hanga i te QR Code i ngā hipanga e 3.
Ngā Pātai Auau
Ka pau te wā o te QR Code?
Kāore rawa e pau te wā o te QR Code pūmau (static) nā te mea kua whakaurua tikatia ōna raraunga ki te whakaahua. Ka mutu pea te mahi a te QR Code hihiko (dynamic) ki te mutu te ratonga e tuku ana i tōna hono, ki te mutu rānei te ohaurunga.
E hia te nui o ngā raraunga ka taea e te QR Code te pupuri?
Ka taea e te putanga nui rawa o te QR Code te pupuri tae atu ki te 7.089 nama, ki te tata ki te 2.953 paita rānei. Heoi anō, ko te iti ake o ngā raraunga, ko te māmā ake o te matawai i te QR Code.
Ka taea tonu te pānui i te QR Code ki te pakaru tētahi wāhanga?
Āe. Nā te whakatika hapa, ka taea tonu te pānui i te QR Code ahakoa kua pakaru te tata ki te 7% ki te 30% o ōna wāhanga, i runga anō i te taumata whakatika L, M, Q, H rānei e whakamahia ana.
