Ɔkwan Bɛn so na RFID Keyfobs Yɛ Adwuma Ma Access Control?
Dec 09, 2025
Gyae nkrasɛm bi .
Ɔkwan Bɛn so na RFID Keyfobs Yɛ Adwuma Ma Access Control?
Fi adwumayɛbea no fam tẽẽ
Yɛayɛ RFID keyfobs fi afe 2006. Bɛboro ɔpepepem biako asinasin afi yɛn nhama mu, enti yenim nea ɛba awiei wɔ adetɔfo safe so da biara da.
Nkrabea no da so ara te saa ara: chip ketewaa bi, kɔbere anaa aluminium coil, batere zero. Sɛ keyfob a wɔawie no twa akenkanfo bi ho a, coil no wia microwatt kakraa bi fi RF field no mu, chip no sɔre, bua, na ɛsan kɔda. Saa nkɔmmɔbɔ no nyinaa di bɛyɛ milisekɔn 120.
Frequency ne Protocol Asase wɔ afe 2025 mu
LF 125 kHz na ɛwɔ hɔ
mpɛn pii no EM4200, EM4305, T5577, HITAG-1/2/S, anaa HID Prox-a ɛne no hyia
HF 13.56 MHz na ɛwɔ hɔ
nokware NXP MIFARE Classic 1K/4K, Plus, DESFire EV1/EV2/EV3 2K-8K, Ultralight EV1/C, NTAG21x, ICODE SLIX2, anaa HID iCLASS SE/SEOS
Inlay no nya potted wɔ epoxy a emu da hɔ mu, afei wɔde injection-molded ABS, polycarbonate, anaa recycled po-plastic shells (yiw, adetɔfo binom pɛ saa ankasa). Ultrasonic welding anaa high-frequency sealing to fã abien no mu daa. Awiei koraa no, ne kɛse taa yɛ 4.5–6.5 mm enti ɛda so ara te nka yiye wɔ kar safe nkyɛn.
Mprempren Ankasa-Wiase Bo a Wɔbɔ fi Yɛn Factory (December 2025, FOB Shenzhen)
| Chip type | MOQ | 1–5 k pcs na ɛwɔ hɔ | 10 k+ pcs na ɛwɔ hɔ | Wɔadi kan-ayɛ nhyehyɛe + a wɔde nɔma ahyɛ mu |
|---|---|---|---|---|
| EM4200 / T5577 na ɛwɔ hɔ | 500 | $0.34 | $0.27 | +$0.03 |
| HID Prox a ɛne no hyia | 1 000 | $0.48 | $0.39 | +$0.05 |
| MIFARE Classic 1K na ɛyɛ adwuma | 500 | $0.52 | $0.41 | +$0.04 |
| MIFARE DESFire EV2 4K | 1 000 | $2.15 | $1.88 | a ɛka ho |
| DESFire EV3 8K (AES, CMAC) 1. Ɔde ne nsa kyerɛɛ ne so. | 2 000 | $2.68 | $2.29 | a ɛka ho |
| HID iCLASS SEOS 8K. Ɛyɛ a na me ne me yere kɔ | 5 000 | $3.45 | $2.96 | a ɛka ho |
| Mpɛn abien-frequency (LF + DESFire) . | 3 000 | $3.10 | $2.68 | a ɛka ho |
Nneɛma bo a ɛwɔ atifi hɔ nyinaa yɛ nsusuwii a wɔahyɛ da ayɛ, kɔla biako-kɔla silk tintim, laser nɔma a ɛtoatoa so wɔ akyi, ne NXP/HID nokwaredi adansedi nkrataa a edi mũ a wɔde mena ne batch biara.
Nneɛma a Yesuaa Wɔ Ɔkwan a Ɛyɛ Den So
Options Customers Nokwarem no Order wɔ 2025 mu
Epoxy drop label wɔ ɔfã biako (ɛkame ayɛ sɛ wontumi nsɛe full-color print)
Glow-in-the-dark shell (a ɛyɛ nwonwa sɛ sukuupɔn ahorow ani gye ho) .
NFC Type-4 sticker wɔ akyi sɛnea ɛbɛyɛ a keyfob koro no ara betumi abue apon na wɔatua awia aduan ho ka
Bio-sourced PLA shells ma ESG amanneɛbɔ no obiara nkenkan
QR code laser-etched wɔ akyi a ɛde link kɔ lost-ne-found krataafa so
Atoro Chips a Yɛkyere Dapɛn Biara
Fake "DESFire EV3" a nokwarem no re-a wɔahyɛ no agyirae EV1, atoro iCLASS SEOS a edi nkogu wɔ asram abiɛsa akyi, MIFARE Classic a ATR a ɛnteɛ wom. Yɛsɔ reel biara a ɛba yɛn lab akenkanfo so hwɛ na yɛde CoA a ɛfata ma bere a chip no bua sɛnea NXP anaa HID kyerɛ no pɛpɛɛpɛ nkutoo. Sɛ wo ntumi nnya saa PDF a ɛwɔ kratafa biako-a wo batch nɔma wɔ so no a, ebia woatɔ atoro.
Di Mmere a Wɔde Di Dwuma Mprempren
- Standard EM/HID-Prox a ɛne no hyia: nnafua 8–12
- Stock DESFire EV2/EV3: Nnafua 14–18
- Pantone kɔla a wɔahyɛ da ayɛ + epoxy ahyɛnsode + ansa na-yɛ nhyehyɛe: nnafua 21–28
Mfiridwuma no ankasa gyaee yɛn nwonwa mfe dunum a atwam ni. Nna yi yɛbɔ mmɔden ara sɛ yɛbɛyɛ akenkan a ɛyɛ den sen biara, a eye sen biara-akenkan, a wɔayɛ ho nhyehyɛe yiye-ayɛ nhyehyɛe sɛ plastic nketewa a ɛtɔ gu fam wɔ bo a ntease da so ara wɔ mu. Ɛno ara ne nea ɛho hia sɛ keyfob yɛ pɛn.
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