Design of the RFID for Storage of Biological Information
Yu-Lee Choi, Seok-Man Kim, Sang-Hee Son, Kyoung-Rok Cho
Recent advances in RFID (radio frequency identification)
technology promises to create a wireless circuitry capable of
interfacing with biological systems for acquisition, identification
and processing of biological data based on radio frequency
interaction. Thus, the RFID tag can be attached not only to
consumer products and form part of the supply chain, but also to
animals, plants and in particular human body. This paper describes
the strategy for the design of a novel RFID tag, which stores vital
biological information such as body temperature and blood
pressure and heartbeat in accordance with the EPC global Class-1
standard. Biological data is obtained from a sensor technology that
is based on resistance deviation-to-pulse width converter. The
integrated chip consists of an analog front end, command
interpreter, collision avoidance block, data storage, sensors, and
interface circuitry. The system is capable of supporting heartbeats
in the range of 40~200 beats per a minute and blood pressure
0~300mmHg. The proposed system employs collision free
algorithm that supports access to single tag within a multiple tag
environment. The approach facilitates intelligent management of
patients in hospitals as part of an integrated healthcare
management system. Full Text
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