RFID sɛnkyerɛnne kwan so ade a wɔde siw kwan .

Wɔ yɛn da biara da asetena mu no, kaad pii, pii wɔ hɔ a wɔde di dwuma, wɔ yɛn sikakorabea nkrataa akyi no, afoforo te sɛ asɔremma kaad, kaad a wɔde di dwuma, ID nkrataa a wɔde hwɛ kwan so, IC kaad, ne nea ɛkeka ho, wɔn nyinaa gye a wontumi nhu no sɛ ɛka yɛn ahunmu, na yɛasua sɛ yɛde bedi dwuma efisɛ ɛyɛ mmerɛw sɛ yɛde bedi dwuma na ɛnyɛ den sɛ yɛbɛyɛ adwuma. Afei asiane ahorow bi wɔ hɔ a wɔde di dwuma. Nsɛmmɔnedifo binom de kaad ahorow bi mu ntokuru anaa sintɔ ahorow no di dwuma de wia anaasɛ wosuasua. So shielding card bi wɔ hɔ anaasɛ ɛte saa a ɛbɛma eyi amma?

Saa kaad yi yɛ RFID sɛnkyerɛnne kwan so krataa a wɔde siw ano.

Ebetumi abɔ abɔnten nnwinnade ho ban afi akenkan kaad ho nsɛm ho na asiw kaad akenkan sɛnkyerɛnne no ano. Kyɛm a wɔde di dwuma mprempren no yɛ PVC nneɛma ne shield chip titiriw. Sɛ wugyina abɔnten a, ɛnyɛ soronko koraa wɔ yɛn ID nkrataa a yɛtaa de di dwuma ne IC kaad no ho. Ɛrentumi nyɛ yiye koraa sɛ wubehu sɛ ɛyɛ kaad a ɛwɔ mfiridwuma ho nimdeɛ a ɛyɛ tuntum.

Yɛn nyinaa nim sɛ ɛwɔ hɔ a ɛba fam-frequency cards ne soro-frequency cards wɔ yɛn da biara da dwumadie mu, enti card bɛn na ɛyɛ kyɛm kaad, na frequency band bɛn na ɛyɛ ne dea?

Mprempren, shielded cards yɛ cards titiriw a ɛbɔ ho ban kɔ soro-frequency bands, kyerɛ sɛ, cards a ɛbɔ 13.56MHz ho ban, a ɛkorɔn-frequency cards. Bank cards ne IC cards a yɛde di dwuma da biara da no yɛ kɛse-frequency cards.

Ɛnde dɛn nti na wonnyɛ shield, low frequency card? Ɛte saa efisɛ wɔ ankasa a wɔde di dwuma no mu no,-frequency card a ɛba fam no yɛ mmerɛw sɛ wode bedi dwuma, na kakraa bi na ɛwɔ hɔ, na ɛfa nsɛm bi a wɔde asie ho, a wɔde di dwuma titiriw wɔ-frequency card a ɛkorɔn no mu. Enti, wɔwo shielding card no sɛnea ɛbɛyɛ a ɛbɛbɔ frequency a ɛkorɔn no ho ban.

Fa smart card ne shielded card no bom kɛkɛ, na wireless signal a ɛwɔ wo payment card no mu no bɛbɔ ho ban wɔ ɔkwan a etu mpɔn so. Ɛmfa ho mfiri a nsɛmmɔnedifo no de di dwuma no, wɔrentumi nwia wo kaad ho nsɛm, na wɔahwɛ ahu sɛ wɔde nsɛm bɛkɔ baabi a ahobammɔ wom na wɔasiw nsɛm a ɛbɛtwetwe no ano.

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