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Tagoram: Real-Time Tracking of Mobile RFID Tags to High Precision Using COTS Devices
| Content Provider | CiteSeerX |
|---|---|
| Abstract | In many applications, we have to identify an object and then locate the object to within high precision (centimeter- or millimeter-level). Legacy systems that can provide such accuracy are either expensive or suffering from performance degradation resulting from various impacts, e.g., occlusion for computer vision based approaches. In this work, we present an RFID-based system, Tagoram, for object localization and tracking using COTS RFID tags and read-ers. Tracking mobile RFID tags in real time has been a daunting task, especially challenging for achieving high precision. Our sys-tem achieves these three goals by leveraging the phase value of the backscattered signal, provided by the COTS RFID readers, to es-timate the location of the object. In Tagoram, we exploit the tag’s mobility to build a virtual antenna array by using readings from a few physical antennas over a time window. To illustrate the basic |
| File Format | |
| Access Restriction | Open |
| Content Type | Text |
