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    • 7. 发明申请
    • METHOD FOR ADJUSTING THE TRANSMISSION TIME OF THE CARRIER WAVE IN AN RFID READER AND READER IMPLEMENTING THE METHOD
    • 用于调整RFID读写器中的载波波形传输时间的方法和实现方法的读取器
    • WO2011036064A1
    • 2011-03-31
    • PCT/EP2010/063254
    • 2010-09-09
    • SIEMENS AKTIENGESELLSCHAFTLI, HuiYUAN, YongZHANG, Liang
    • LI, HuiYUAN, YongZHANG, Liang
    • G06K7/00
    • G06K7/0008G06K7/10217G06K7/10297
    • The present invention discloses a method for adjusting the transmission time of a continuous wave (CW) and a reader for implementing the method. The method comprises: setting an initial value for a response waiting time; sending the CW to a tag after having sent out a command to the tag and waiting for a response from the tag; judging whether the response from the tag is received within the response waiting time, if the response from the tag is received within the response waiting time, then stopping sending the CW and adjusting the response waiting time, and if the response from the tag is still not received beyond the response waiting time, then stopping sending the CW. In the present invention, the time for a reader to wait for a response from the tag is far less than 20 ms, therefore, a command failure can be found early, so as to improve the processing efficiency of an RFID system.
    • 本发明公开了一种用于调整连续波(CW)的传输时间的方法和用于实现该方法的读取器。 该方法包括:设置响应等待时间的初始值; 在向标签发出命令并等待来自标签的响应之后,将CW发送到标签; 判断在响应等待时间内是否接收到来自标签的响应,如果在响应等待时间内接收到来自标签的响应,则停止发送CW并调整响应等待时间,并且如果标签的响应仍然 没有收到超过响应等待时间,然后停止发送CW。 在本发明中,读取器等待来自标签的响应的时间远远小于20ms,因此可以及早发现命令故障,从而提高RFID系统的处理效率。