Radio frequency identification technology has received an increasing amount of attention in the past few years as an important emerging technology. However, the intrinsically passive features of existing Rfid systems, to which we refer as first-generation RFID systems, render their adaptation to real-world dynamics in order to efficiently comply with up-to-date application specific requirements difficult. To address this challenging issue, evolution of second-generation RFID systems is in progress.
2nd generation RFID is characterized by the introduction of encoded rules that are dynamically stored in RFID tags. If we say it in simple words it is capable of sending dynamically changing data to RFID reader not like the 1st generation RFID system which just send a static ID.
This novel approach facilitates the systems’ operation to perform actions on demand for different objects in different situations, and enables improved scalability. Based on 2G-RFID-Sys, many problems can be solved, a novel e-healthcare management system is an example of that. It is foreseeable that the flexibility and scalability of 2G-RFID System will support more automatic and intelligent applications in the future.
Figure blow shows diagram representation of the 2G-RFID-Sys based e-healthcare system.
Sensors for checking the health parameters, like heartbeat etc are attached with Patient's body and RFID tags given information/data to RFID reader about it. As per network shown in the diagram any medical emergency and Patients data are directly communicated to hospital, ambulance and concerned doctors.
Reference:
Chen, Min, et al. "A 2G-RFID-based e-healthcare system." Wireless Communications, IEEE 17.1 (2010): 37-43.
