HIERARCHICAL RADIO FREQUENCY IDENTIFICATION SYSTEM Russian patent published in 2011 - IPC G06K7/00 H04Q5/22 G09F3/00 

FIELD: information technology.

SUBSTANCE: hierarchical radio-frequency identification system includes a parent label with an identification register and a counter register, child labels with identification registers connected at the input and output by a first frequency radio channel to a first writing transponder, data storage and an input/output interface. To avoid collisions when reading data of radio frequency labels, the system further includes a data buffer, and a second writing transponder, the first input and output of which are connected to the parent label by a second frequency radio channel, and the second and third inputs and outputs are connected to the data buffer and the input/output interface, respectively.

EFFECT: avoiding collisions when reading and recording data of parent and child labels when they are located in the reading zone at the same time.

3 dwg