Dɛn ne LF,HF,UHF kaad?

1. LF RFID Kaad .

Operating frequencies a ɛtaa ba a ɛba fam-frequency RF cards yɛ 125 kHz ne 134.2 kHz. Nneɛma titiriw a ɛwɔ saa radio frequency card yi mu ne ne data a wɔkora so ketewaa bi, akenkan ahoɔhare a ɛkɔ brɛoo, na mpɛn pii no ɛnfoa nkyerɛwee dwumadi ahorow so. Nkitahodi kwan no yɛ sɛntimita 10 pɛ. Ɛwom sɛ wobetumi atrɛw mu akodu sɛntimita 80 denam nnwinnade te sɛ anyinam ahoɔden a ɛma nneɛma yɛ kɛse a wɔde bɛka ho so de, nanso ahobammɔ ho asiane atitiriw wɔ hɔ, te sɛ nea ɛnyɛ den sɛ wɔbɛyɛ ho mfonini na wɔayɛ no sɛnea ɛte no. Enti, ɛnyɛ nea ɛfata ma application ahorow te sɛ ID keychains ne access cards wɔ mmeae a nnipa te. no fii hɔ nkakrankakra. Nanso, ɛba fam-frequency radio frequency cards wɔ anti-interference tumi a ɛyɛ den, enti ɛda so ara wɔ application value bi wɔ fields pɔtee bi te sɛ mmoa tracking mu.

 

2. HFRFID Kaad .
Adwumayɛ frequency a ɛkorɔn-frequency radio frequency cards yɛ 13.56MHz. Nneɛma pii wɔ hɔ a ɛkorɔn-frequency card protocol ahorow. common system ISO nkitahodi protocols no bi ne: ISO7816, 14443A, 144433, 15693, ne nea ɛkeka ho. Smart card yi a wɔde di dwuma no ayɛ nea ɛho akokwaw yiye, na ɛsan nso wɔ ntɛmntɛm data akenkan ne akyerɛw ahoɔhare, kwan a ɛda 0{11}} NFC tags, consumer electronic tags Nneɛma afoforo nyinaa yɛ adwuma wɔ saa frequency band yi mu. Nyansahu ne mfiridwuma mu nkɔso, wɔ nnansa yi mfe mu no, High-frequency CPU chip RF cards a ɛwɔ anti-copying ne anti-ahobammɔ agyapade a ɛrepaapae no de nkakrankakra asi M1 chips ananmu na abɛyɛ nea wɔpɛ foforo wɔ frequency cards a ɛkorɔn mu, anya mfaso pii ne pii.

3. UHF RFID Kaad .
UHF RF kaad no taa kyerɛ ɛlɛtrɔnik tags a ɛyɛ adwuma wɔ 860~960m frequency band no mu. Protocol ahorow no titiriw ne 18000-6B ne 18000-6C. Su titiriw a ɛwɔ saa smart cards ne ɛlɛtrɔnik tags yi mu ne ahoɔhare a wɔde kenkan ade ntɛmntɛm, kwan tenten, ne anti-collision. Ɛwɔ tumi a ɛyɛ den na wɔde di dwuma kɛse wɔ logistics pallet cards, turnover box cards, warehouse inventory cards, RFID kar sohwɛ, agude ho nhyehyɛe, fael sohwɛ, ahohoro ho nhyehyɛe ne mfuw afoforo mu. UHF radio frequency cards wɔ akenkan soronko a ɛkɔ akyiri ne akuw a ɛwɔ TAG ahorow pii. Akenkan dwumadie no ma ɛyɛ mmerɛ sɛ wɔbɛdane akɔ mmeaeɛ a ɛyɛ den, na wɔbɛtumi ahyɛ mu ayɛ no kaad, nkyerɛwdeɛ a wɔatintim, nkyerɛwde soronko ne akwan foforɔ a ɛyɛ den sɛdeɛ dwumadie ankasa teɛ.
Sɛ yɛka ne nyinaa bom a, RF kaad a ɛfata a wobɛpaw no gyina akwammisa tebea ne ahwehwɛde ahorow so. Low-frequency cards wɔ mfasoɔ wɔ mmeaeɛ a ɛyɛ den, a ɛkorɔn-frequency cards no fata ma scenarios a ɛhia sɛ wɔde transmission a ɛyɛ den, na ultra-High-frequency cards no fata ma applications a ɛhia sɛ wɔde akɛseɛ{5}}se nyɛ den na ɛkorɔn-} ahoɔhare nkyerɛkyerɛmu.