The feasibility of motion sensor-based smart RFID system in improving the power saving

RFID (radio frequency identification) implementation in large buildings requires setting up a grid that implies a lot of RFID readers. Although these readers are not power greedy, their usage can affect the electricity bill in the long run. In this paper, we study the worthiness of upgrading to a motion sensor-based smart RFID system, from a power-efficiency point of view. A decision-support protocol is developed for this purpose that considers the occupancy ratio of the environment where the system is implanted in deciding its feasibility, given that the energy drain depends on it. Moreover, we discuss the optimal way for integrating the motion sensor into the RFID system’s architecture, as this insertion is able to highly reduce the power consumption in the standby mode, in exchange for slightly augmenting the drain during the reading mode. Finally, the developed decision-support protocol is demonstrated through an analogy on the studied upgrade to assess its overall feasibility. The overall results confirm the suitability of the upgrade for most environments.