Concrete embedded RFID for way-point positioning

RFID markers are proving to be a cheap and reliable enabler for indoor positioning applications. Motivated by this we have developed a concrete embeddable passive RFID tag for robust and long-lasting way-point identification. Embedding commercially available passive tags in concrete significantly reduces their read range and hence, usefulness as markers. By appropriate redesign of the antenna and packaging we have extended hand-held readability of concrete embedded passive tags beyond one meter. This paper details the background R&D of our prototype tags, including test and measurement results.