Activity Recognition Using RFID Phase Profiling in Smart Library

Abstract

In the library, recognizing the activity of the reader can better uncover the reading habit of the reader and make book management more convenient. In this study, we present the design and implementation of a reading activity recognition approach based on passive RFID tags. By collecting and analyzing the phase profiling distribution feature, our approach can trace the reader's trajectory, recognize which book is picked up, and detect the book misplacement. We give a detailed analysis of the factors that can affect phase profiling in theory and combine these factors with relevant activities. The proposed approach recognizes the activities based on the amplitude of the variation of phase profiling, so that the activities can be inferred in real time through the phase monitoring of tags. We then implement our approach with off-the-shelf RFID equipment, and the experiments show that our approach can achieve high accuracy and efficiency in activity recognition in a real-world situation. We conclude our work and further discuss the necessity of a personalized book recommendation system in future libraries.

Physiological and Behavior Monitoring Systems for Smart Healthcare Environments: A Review

“…The detection of its usage was done by attaching passive RFID tags on the objects. Information regarding the handling of one object was given by transforming the physical-signal data to binary-state data, considering that the physical manipulation of one object is perceived by the analysis of the radio frequency phase value of RFID tags [125]. For human activity prediction, time sequences were considered, as certain activities tend to happen right next to a previous activity (e.g., watching TV after having dinner).…”

A Novel Human Activity Recognition and Prediction in Smart Home Based on Interaction

“…In these systems, the received-signal-strength indicator was merely used to distinguish the state of the tags; note that state is not a stable parameter. Our previous research explained that the RF phase of RFID tags can better reflect both the spatial attribute and the interaction between human and tagged objects [20].…”

“…Because phase is more sensitive to distance than interferences or reflections, even when several people are close to one another, their interactions with the objects could be detected correctly. The detailed analysis of this phenomenon is proposed in our previous work [20].…”

RFID en el servicio bibliotecario de la UTM

“…Se puede agregar a la etiqueta extensiones como memoria, sensores, cifrado y control de acceso. Los interrogadores consultan las etiquetas de la información almacenada y pueden incluir elementos como números de identificación, datos escritos por el usuario o datos sensoriales (Ahson e Ilyas, 2017;Du, Lim y Tan, 2019).…”