Basic knowledge of radio frequency card

Basic knowledge of radio frequency card
1, the characteristics of RF card
RF card (RF card) is an integrated circuit card for transmitting data in the wireless way, it has the advantages of safety data processing and authentication function
Other unique advantages.
RF card at the time of writing and reading are in a non - contact operation state, avoid because of poor contact caused by the read and write errors, incorrect operation, while avoiding the dust
, oil and other bad external environment to read write card effect.
Simple operation, quick: take RF card wireless communication mode, no direction requirement when in use, so it is very convenient to use.
Anti collision: RF card has fast anti-collision mechanism, can prevent the interference between data card, so the terminal can handle more than one
Card, easy to use one card: RF card has multiple partitions, each partition also have their own password, so it can be used for different partitions not
With the application, to achieve a multi-purpose card
2, the radio frequency card advantage
Compared with the contact type IC card, radio frequency card has the following advantages:
High reliability
Card reading and writing device without mechanical contact between, avoid various fault because access to read and write and produce. For example: because the rough, non card card
An insert, dust, oil lead to failures caused by poor contact and other reasons; card surface no bare chip, need not worry about the chip off, electrostatic
Breakdown, bending etc..
Convenient, fast operation
Because of the non touch communication, the reader is in the range of 1cm-10cm to the card can operate, so don't be out of work as the IC card
Non contact cards; when used without direction, the cards can be in any direction across the reader surface, can greatly improve the speed of each use;
Anti collision
RF card fast anti-collision mechanism, can prevent the interference between data card, so the reader can "and" processing more than one non connected
Contact type radio frequency card;
A wide range of applications
The memory structure of RF card makes it a multi-purpose card. Can be used in different systems, users according to different application settings are not
The same password and access conditions
Encryption performance
Sequence number of RF card is the only manufacturer, before the products leave the factory has this sequence number curing, can not be changed;
RF card between the reader and the bidirectional authentication mechanism, namely legitimacy reader authentication card, and also verify the RF card reader legitimate
Sex;
Before the treatment, card to three mutual authentication with the reader, but also in the communication process all the data encryption. In addition, card in each sector
A password and access conditions for their.
At present, the radio frequency card at home and abroad has been widely used, such as Seoul, Brazil, Canada bus, subway fee system. I
Our country Hongkong, Beijing, Shanghai, Guangzhou, Zhuhai, Taiyuan city has also issued a public transportation card, and the highway toll collection, parking fees, door
No system, attendance system as well as the shopping system, widely applied to every corner of our lives.