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Product Details
low frequency cards (id cards) are widely used now. our company can provide tk4100 thick white cards as well as tk4100 thin cards with printing. our low frequency printing thin cards meet the 0.76mm thickness standard of bank cards. The advanced manufacturing process is the Zui advantage of the low-frequency card of our factory, which is different from the low-frequency card of other factories. The bad card rate is far lower than that of the low-frequency card produced by other card factories. Performance is also far better than other low-frequency card, long service life.
Chip: Taiwan 4100 cob
Operating frequency: 125khz
Sensing distance: 8-20cm
id thick card: thickness 1.8mm, standard card size, is currently Zui economical radio frequency ic card with id number, with a portable hole, can screen print logo text information;
Standard thin card: thickness 0.8mm, standard size, can be offset printing, screen printing, printing photos;
Non-standard thin card: thickness 1.05mm, standard size can be offset printing, screen printing, printing photos;
Typical applications: radio frequency identification fields such as patrol system, attendance system, access control system, enterprise card system
id card is thrc12/13 read-only contactless ic card. it is powered by card reader induction and reads out the unique card number stored in the chip eeprom. the card number is written once before the card is sealed and cannot be changed after the card is sealed. Passive and contact-free are the outstanding characteristics of the two Zui of the chip, and the RF interface circuit is the key core technology, which receives RF energy from the reader, generates power and clock for the chip, and uses phase shift keying and load amplitude modulation technology to realize the wireless communication between the card and the reader. Contactless id card has been widely used because of its advantages such as convenient, fast and reliable operation.
id Card Key Features
★Carrier frequency 125kHz (thrc12) or 13.56MHz (thrc13);
★The modulation method for the card to transmit data to the card reader is load amplitude modulation;
★The data coding in the card adopts bpsk phase shift keying mode with strong anti-interference ability;
★Card to reader data transfer rate of 3.9kbps(thrc12) or 6.62kbps(thrc13);
★The data storage adopts eeprom, and the data storage time is more than 10 years;
★64 data storage capacity, including manufacturer, publisher and user code;
★The card number cannot be changed after being written before sealing the card to ensure the uniqueness and security of the card number;
★T hrc13 chip in addition to the standard card shape, but also according to the application needs to be packaged into chips and other shapes.
How id Cards Work
The system consists of a card, a reader, and a background controller. The working process is as follows:
(1) The reader sends the carrier signal through the antenna;
(2) after the card enters the working area of the card reader, the resonant circuit composed of the inductor and capacitor in the card receives the carrier signal transmitted by the card reader, and the radio frequency interface module of the chip in the card generates the power supply voltage, reset signal and system clock from this signal, which makes the chip "active";
(3) the chip reading control module modulates the data in the memory on the carrier after phase modulation coding, and sends it back to the card reader via the antenna in the card;
(4) The card reader demodulates and decodes the received card echo signal and sends it to the background computer;
(5) the background computer makes corresponding processing and control for different applications according to the legitimacy of the card number.
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