Deployment Strategies and Performance Evaluation of a Virtual-Tag-Enabled Indoor Location Sensing Approach

Abstract

Indoor location information is valuable to the construction industry for a wide range of purposes, including on-site personnel safety, asset security, facility maintenance, and in-building emergency response. Indoor location sensing includes presence detection and location calculation, for which a number of technologies and algorithms have been tested. To advance the research in this area, the paper proposes an improved radio frequency identification (RFID)-based location-sensing algorithm that uses virtual tags to increase cost effectiveness and robustness. A series of tests were conducted in a controlled environment, and the findings on algorithm parameter optimization, equipment deployment strategies, system accuracy/cost tradeoff, and robustness are presented in the paper. The results show that a mean accuracy of