Tag Design for RFID AC Current Sensing System

被引：0
|
作者：
Ullah, Irfan [1 ]
Horne, Robert [1 ]
Sanz-Izquierdo, Benito [1 ]
Batchelor, John C. [1 ]
机构：
[1] Univ Kent, Sch Engn & Digital Arts, Canterbury, Kent, England
来源：
2020 14TH EUROPEAN CONFERENCE ON ANTENNAS AND PROPAGATION (EUCAP 2020) | 2020年
关键词：
RFID sensing; self-tuning tags; Internet of Things; smart home application;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This study describes the development of an RFID tag system and antenna for real-time ac current sensing of individual appliances in smart homes. The operating principle of the tag system is based on the tag antenna tuning via a tuning circuit. The auto-tuning chip is embedded to compensate the antenna matching and stores the impedance tuning in the form of a 5 bit sensor code. The tag wirelessly streams the 5 bit sensor code that represents the ac current drawn by the electrical load, to the dedicated RFID reader in the range of 3 m at 868 MHz. The tag device is an energy harvester and a cost-effective ac current sensing solution compared to commercial smart meters in smart power metering systems. The antenna is designed to fit around the housing of the current sensor.
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页数：5
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