RFID Overview
The data exchange between the radio frequency tag and the reader constitutes a wireless data communication system.
1. Introduction to radio frequency tag communication protocol
Data exchange between radio frequency tags and readers,Because of the contactless communication,there is a spatial wireless channel.Therefore, the data exchange between the radio frequency tag and the reader constitutes a wireless data communication system. Under such a data communication system model, the radio frequency tag is one party of data communication, and the reader is the other party of communication. To achieve the purpose of safe, reliable and effective data communication, both parties of data communication must abide by the mutually agreed communication protocol. Without such a basis recognized by both communication parties, the two parties in data communication will not understand what the other party is saying, and the pace will not be coordinated, resulting in the inability of data communication.
The problems involved include: timing system problems; communication handshake problems; data frame,coding problems and integrity problems;multi-tag reading and writing anti-collision problems;interference and anti-interference problems; reading rate and bit error rate problems; data encryption and security problems; interface problems between the reader and the application system.
