Communication method based on radio frequency identification system, apparatus and system thereof
A technology of a radio frequency identification system and a communication method, applied to devices and systems, in the field of communication methods based on radio frequency identification systems, can solve problems such as being susceptible to external environment interference, large energy consumption of electronic tag batteries, affecting the accuracy of detection results, and the like, To ensure stability and achieve simple results
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[0031] In order to realize the two-way communication between the electronic tag and the reader in the radio frequency identification (RFID) system, save the battery energy consumption of the active electronic tag, and ensure the stability of the communication between the electronic tag and the reader, the embodiment of the present invention provides A communication method, device and system based on a radio frequency identification system. The method is as follows: the electronic tag receives the data frame sent by the reader in the current counting cycle, parses the data frame and extracts the frame number from the predetermined field, calculates the waiting time for the current counting cycle to enter the channel idle state based on the extracted frame number, and When it is determined that the reader is in the channel idle state, a time slot is selected from the time slots included in the current inventory cycle, and a message is sent to the reader based on the selected time...
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