So wunim Intanɛt so Nneɛma a Wɔde Hu Nneɛma: Nsonsonoe bɛn na ɛwɔ RFID ne NFC ntam?

Intanɛt so nneɛma ho Intanɛt yɛ mfiridwuma mu nneɛma atitiriw abiɛsa: nkitahodi, nkyerɛkyerɛmu ne data a wɔde di dwuma .

NFC .

a ɛbɛn afuw mu nkitahodi (NFC). NFC yɛ nkitahodi a ɛtaa ba ma fon a wɔde di dwuma wɔ nsa so. Smart devices betumi asesa data denam wɔn ho wɔn ho a wɔbɛn wɔn ho wɔn ho so. NFC mfiri nso tumi ne NFC tags a ɛnyɛ adwuma di nkitaho. Nkitahodi kwan no ne RFID yɛ pɛ. Nkitahodi protocol ahorow akyi no, NFC gyinapɛn no kyerɛ ɔkwan a wɔfa so sesa data. Sensor Card Reader a wɔaka abom, sensor card ne point-To-Pa dwumadi ahorow wɔ NFC chip biako so ma nkyerɛkyerɛmu ne data a wɔde sesa ne mfiri a ɛne no hyia wɔ akwansin tiaa so.

Radio so Nsɛm a Wɔka Kyerɛ .

Contactless Radio Frequency Identification (RFID) yɛ nkitahodi mfiridwuma a wɔde nhama di dwuma titiriw a ɛno nso nam wireless electromagnetic asorɔkye so de data kɔ. Nanso, nea ɛnte sɛ nkitahodi mfiridwuma a wɔtaa de di dwuma no, atirimpɔw no nyɛ sɛ wɔbɛfrɛ wɔ telefon so anaasɛ wɔde nkrasɛm bɛmena. Wɔde RFID di dwuma titiriw de hu na wɔde di tag ahorow a ɛkyekyere ade no akyi, sɛnea ɛbɛyɛ a wobenya ade sohwɛ.

Nsonsonoe a ɛda NFC ne RFID ntam .

1. Adwumayɛ mpɛn dodow .

Wobetumi ate NFC ase sɛ RFID mfiridwuma no fã ketewaa bi a ɛde 13.56MHz band no di dwuma, na RFID nso ka nnwontofo kuw afoforo ho.

RFID wɔ adwumayɛ frequency band pii, frequency band a ɛba fam no yɛ 125KHz, frequency band a ɛkorɔn no yɛ 13.56MHz, ultra-a ɛkorɔn frequency band yɛ 433.92MHz ne 915MHz, na microwave frequency band yɛ 2.45GHZ.

2. Nkitahodi kwan .

Wɔfrɛ NFC a ɛbɛn afuw mu nkitahodi, na nokwarem no, nkitahodi kwan no bɛn yiye, ɛnyɛ nea ɛboro 0.1m.

RFID ahorow pii wɔ hɔ, ɔkwan a wotumi hu no nso yɛ soronko. Te sɛ RFID access cards no, ɛkame ayɛ sɛ recognition distance no ne NFC yɛ pɛ. Nanso, ma application scenarios te sɛ etc, a longer recognition distance na ɛhia. Sɛ wohu sɛ RFID no ntam kwan ware a, ebetumi adu mita du du anaa mita ɔhaha pii mpo.

3. Application tebea horow .

Sɛ́ ebia RFID yɛ adwuma anaasɛ ɛnyɛ hwee no, n’adwuma titiriw ne sɛ ɛbɛda so ara ahu nneɛma. Nneɛma a wɔde kɔ, akwantuo ne nneɛma a wɔde siesie nneɛma mu de RFID mfiridwuma di dwuma de di nneɛma akyi.

NFC chips yɛ nea wɔaka abom kɛse, a kaad akenkanfo ne tag ahorow ka ho. Nea ɛka ho no, wɔama NFC ho nkitahodi tumi abien-akwan a wɔfa so di nkitaho no ayɛ kɛse. Ɔkwan foforo so no, ɛnyɛ sɛ wobetumi de NFC adi dwuma sɛ identification tag nko, na mmom sɛ abien-kwan nkitahodi kwan a wɔfa so sesa data nso. Mprempren, NFC na wɔtaa de di dwuma kɛse wɔ sikatua fã no mu.