Reliability improvement for an RFID-based psychiatric patient tracking system

Chieh Ling Huang, Shu Ling Hsiao, Yu Chia Hsu, Pau Choo Chung, Ming Hua Tsai, Yen Kuang Yang

Research output: Contribution to journalConference articlepeer-review


The cooperation between Field Generators, Readers and Tags accomplishes the required functions in using RFID in psychiatric patient tracking. The Field Generator constantly transmits trigger signals within its transmission range. When a tag, the patient wears, receives the trigger signal from a Field Generator, it responds to a Reader with the ID of the Field Generator. Based on the Field Generator IDs that a tag responds, the location of the patient associated with the tag can be approximately estimated. However, in recent RFID based tracking systems, some phenomena will influence the reliability of signal transmission and reduce the feasibility of the tracking system. In this paper, we have experimented on an RFID-based psychiatric patient tracking system and discussed the conditions that could influence the tracking reliability. Based on the results, an algorithm is also proposed to solve the interference resulting from signal collisions between neighboring Field Generators. Experimental results show that this algorithm has significantly improved the reliability of the tracking system, and increased the feasibility of RFID for psychiatric patient tracking.

Original languageEnglish
Pages (from-to)737-741
Number of pages5
JournalIFMBE Proceedings
Issue number1
Publication statusPublished - 2007
Event10th World Congress on Medical Physics and Biomedical Engineering, WC 2006 - Seoul, Korea, Republic of
Duration: 2006 Aug 272006 Sep 1

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Biomedical Engineering

Fingerprint Dive into the research topics of 'Reliability improvement for an RFID-based psychiatric patient tracking system'. Together they form a unique fingerprint.

Cite this