In this study, a location system that combines a passive NFI and an active RFID system is introduced. The passive NFI system can locate people with an accuracy of about 30 cm. However, it cannot identify persons. The identification can be done using the low-frequency RFID location system that was developed. When these two systems are combined, people could be identified and located with an accuracy of 30 cm. This paper introduces a nearest cell location method and verifies its localization performance with tests. The RFID system itself can locate people with an accuracy of 0.64 m ± 0.31 m (S. D.) and distinguish two persons from each other reliably at a distance of 2.5 m.
|Number of pages||6|
|Journal||International Journal on Communications Antenna and Propagation|
|Publication status||Published - 2011|
|MoE publication type||A1 Journal article-refereed|
- Indoor localization
- Low frequency RFID
- Near field imaging