20 May 2005 Active sensor tags for global visibility of asset readiness
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Abstract
The era of wireless communication and discrete, autonomous sensors platforms is upon us. Advances in radio-frequency (RF) technology from simple two-way personal communications to smart, independent, sensor command, and control units has greatly expanded the applications domain. In the past four years, Pacific Northwest National Laboratory (PNNL) scientists and engineers have developed smart sensor tags (health tags) for the Army to monitor environmental conditions of high value assets over their lifetime (10 yrs). These field tested health tags uniquely identify individual assets, record and store data, run diagnostic and prognostic protocols, identify asset performance status (GO, CAUTION, NO-GO), and provide all this information over a wireless RF link to a portable, hand held reader. Leveraging the innovation achieved for health monitoring tags, the next generation active sensor tag has been developed (FlexiTag) providing reduced tag size and manufacturing cost, greater sensor interface capabilities, and a flexible substrate for surface mount conformity. The design has a greatly reduced part count due to the use of newly available, highly integrated RF chip sets. In addition to asset health monitoring, the new tag platform opens up additional application areas such as TTL (tagging, tracking, and locating), real-time machine fault monitoring, and ad-hoc sensor networking. This paper will compare and contrast the FlexiTag to its predecessors and discuss the current application areas it is being applied to.
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B. J. Burghard, B. J. Burghard, K. L. Silvers, K. L. Silvers, J. R. Skorpik, J. R. Skorpik, } "Active sensor tags for global visibility of asset readiness", Proc. SPIE 5778, Sensors, and Command, Control, Communications, and Intelligence (C3I) Technologies for Homeland Security and Homeland Defense IV, (20 May 2005); doi: 10.1117/12.607127; https://doi.org/10.1117/12.607127
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