An approach of Sustained data acquisition for active RFID systems with low power consumption

Energy of active RFID tags is limited for data being transmitted to the Reader, so a new method for Sustained data acquisition of RFID reader with 2.45 GHz band is proposed to reduce Power Consumption of the tags. After tags being identified by the reader, a communication mechanism which is used by active tags to upload data sustainably with allocated time slots without collision is adopted based on ISO/IEC18000-4 protocol. Power Consumption of tags' collision can be reduced. And the scheme is realized by a set of commands and parameters which are used to control data transmission from the tags to the reader. Finally, the analysis of its effect by calculating shows that power consumption of the RFID system for sustained data acquisition can be effectively reduced.