Using non-contact proximity cards
The use of a variety of cards, magnetic cards, barcode cards, embossed cards, security is low, life is short, easy to wear, easy to imitate; IC card for the contact-type, anti-pollution poor, wear a large.
Cards in the emergence of people on the card application has a new understanding of the past magnetic card, barcode card, IC card is limited to the low number of security requirements, as well as some management fees, and the advantages of proximity cards to make up for its strong the last card, barcode card and IC card used in the defect.
Compared with the traditional card technology, using non-contact IC card technology, the implementation of internal management, has the following advantages: First, long life, low maintenance costs. Non-contact IC card reader without mechanical contact with the complete information to read and write, read and write and to avoid contact damage and produce the card reader machine failure, which greatly improved the life of cards and read-write device. Can guarantee the normal life of non-contact IC card in! More than 10 years. The second is easy to use. Non-contact IC card reader is very simple, without a fixed direction and position, to facilitate the use of the cardholder. Third, safe and reliable. Each card reader process in line with ISO/IEC789-2 standard DES encryption three times; each card are written at the factory can not change the unique number for each user can set the card reader device with the corresponding the only key, card and reader devices are not copied, to ensure system security and reliability. Fourth, high noise immunity. Has a non-contact anti-collision mechanism, in more than one card into the reader's scope of work to prevent the interference of data between cards, allowing multiple cards simultaneously. Fifth, a multi-purpose card. Each card with 1k byte of storage can be divided into 16 different data areas, data area can be set for each individual key, a card can achieve multi-enterprise management needs.
