Katin ID wanda aka sani da katin ganewa (Katin ganewa), katin ganewa ne wanda ba za a iya rubuta ba, wanda ya ƙunshi lambobi masu tsayayye, galibi akwai nau'ikan katin ID na SMC na Taiwan, kamfanin EM na Switzerland da sauransu. ID katin kamar katin magnetic, kawai amfani da "lambar katin" kawai, katin ban da lambar katin, babu wani sirri aiki, da "lambar katin" ne a bayyane, tsirara. Saboda haka, ID katin ne "katin magnetic tacewa". Bayani na ISO misali ID katin ne: 85.6x54x0.80 ± 0.04mm (high / fadi / kauri), akwai wasu kauri katin a kasuwa, nau'i katin, keychain da sauran nau'ikan kunshin.

ID katin aiki:
Tsarin ya kunshi ID katin, katin karatu da kuma baya mai kula. Aiki tsari kamar haka:
Mai karatu yana aika siginar waya ta hanyar eriya;
Bayan ID katin shiga aikin yankin mai karatu, ta ID katin da aka ƙunshi da inductive coil da kuma capacitive na sake dubawa zagaye karɓar da katin mai karatu fitar da carrier siginar, da RF dubawa module na guntu a ID katin samar da wutar lantarki, sake saita siginar da tsarin agogon ta wannan siginar, sa guntu "kunnawa";
The kwakwalwan guntu karantawa sarrafawa module modulates bayanai a cikin ƙwaƙwalwar ajiya a kan carrier bayan fasal coding, ta hanyar ID katin a cikin eriya mayar da katin karatu;
The katin karatu na karɓar ID katin dawo siginar decode, decode bayar zuwa baya kwamfuta; Kwamfuta na baya yana yin daidai sarrafawa da sarrafawa ga aikace-aikace daban-daban bisa ga halattar lambar katin ID.

Bayani na samfurin

1. aiki mita: 125KHZ
2. Karatu da rubutu nesa: 3-10cm
3. Karatu da rubuta sau: 100,000 sau
4. Bayani: 86 * 54 * 1.8 (mm)
5.Application kewayon: shiga kulawa, halartar, dukiya alama
Guntu: EM jerin, TK jerin, SMC jerin