2020 14th European Conference on Antennas and Propagation (EuCAP) /

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 anten...

Ausführliche Beschreibung

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Weitere Titel:
2020 14th European Conference on Antennas and Propagation
Körperschaft:
Institute of Electrical and Electronics Engineers
Format:
Elektronisch E-Book
Sprache:
Englisch
Veröffentlicht:
Piscataway, New Jersey : IEEE, 2020.
Zusammenfassung:
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.
Umfang:
1 online resource
ISBN:
9788831299008
883129900X
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