China Yingke News RFID Asset Management System,ACR1281U-C1 NFC reader

　　China Yingke News RFID Asset Management System

　　1. Application background

　　RFID technology has been widely used in anti-counterfeiting of bills. For example, in airports, railway stations, subways and tourist attractions and other places with many people, RFID electronic tickets are used instead of traditional manual tickets to improve efficiency, or in competitions and performances. For occasions with a relatively large amount of ticketing, RFID technology is used to prevent counterfeiting of tickets. Not only does manual identification no longer need to be used to realize the rapid passage of personnel, but also the number of times the tickets are used can be identified to prevent the tickets from being handed out and used again, so as to achieve "counterfeiting prevention".

　　2. System Design

　　The system consists of three parts: background database, ticket terminal, and ticket reader, and each part is connected through a network system.

　　The background database is responsible for storing the anti-counterfeiting information such as the ticket holder information sent by the ticket terminal. The ticket terminal writes the relevant information of the ticket buyer into the electronic label attached to the ticket through the label printing machine, and uploads the information recorded in the label to the system database at the same time.

　　The reader installed at the entrance of the venue is responsible for collecting the electronic label information in the bill, and completing the verification process by comparing it with the information recorded in the background database

　　3. System workflow

　　1. Information binding: RFID anti-counterfeiting tickets can be made by RFID label printers. Each ticket has a unique and unchangeable ID number.

　　2. Ticket sales: When the ticket is sold, the name of the ticket holder, the certificate number, the validity period and the number of times of validity of the ticket can be written in the RFID anti-counterfeiting ticket, which can be determined according to specific needs. The ID number of the sold bills will be added to the list of legal bills in the system database as a verification basis.

　　3. Ticket inspection: When it is necessary to verify the identity of the ticket holder (such as an airport), the authenticity inspection of the ticket is similar to the authenticity inspection of the certificate, that is, the information in the ticket is read through the reader, and the information in the ticket is read from the reader. Relevant information is retrieved from the background database, and compared with the certificate and bill of the ticket holder.

　　4. Introduction of Zhongying Guomi SM7 Algorithm RFID Tag

　　Zhongying's RFID tags based on the national secret SM7 algorithm are independently developed under the premise of obtaining the national secret qualification.

　　The chip wireless communication interface conforms to ISO/IEC 15693. The security protocol adopts the special encryption algorithm SM7 to protect the security of data exchange. There is a high-speed CMOS EEPROM inside. The tag's high-speed RF communication interface can achieve a data transfer rate of up to 106kbit/s. The tag has anti-collision function: it can process multiple tags within the effective working distance of the tag reader antenna at the same time. The anti-collision algorithm ensures that only one tag is selected and that it is not affected by other tags entering or leaving the radio frequency area during data exchange with the selected tag.

　　Features of the chip:

　　◆ Adopt SM7 national secret algorithm to encrypt and protect the security of data interaction

　　◆ Triple Mutual Authentication System

　　◆ All data in the communication process is encrypted to prevent signal interception

　　◆ With 8 independent keys, support one card multi-purpose

　　◆ The 4-byte serial number of each card is unique

　　◆ Satisfy 100,000 times of erasing and writing, ten years of data storage

　　◆ It can withstand the maximum working field strength of 8A/m

　　◆ Working temperature: -20℃ to 70℃

　　◆ High data security:

　　◆ Each block has 16-bit CRC check

　　◆ Parity bit per byte

　　◆ Use coding to distinguish 0, 1 or no information

　　◆ Comply with "ISO/IEC15693"

　　◆ Comply with "ISO/IEC DIS9798-2"

　　5. Summary

　　By writing the identification code information when the label is issued, and verifying the identification code information when the label is used, the purpose of label anti-counterfeiting can be achieved. The above scheme shows that the contactless logic chip based on the national secret SM7 algorithm can be fully applied to low-cost anti-counterfeiting applications. The scheme has been extended to a variety of anti-counterfeiting systems, such as door and window label anti-counterfeiting, stamp anti-counterfeiting, ticket anti-counterfeiting and so on. The program has been used on a small scale in these project markets and has been well received by users.

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