A New Collaborative Positioning Technology for Pavement Construction Monitoring
CICTP 2019(2019)
Abstract
A new collaborative positioning technology based on global positioning system (GPS) and ultra-wide band (UWB) system was proposed for pavement construction monitoring. The civil GPS system was used to track rollers for numbers of passes; the UWB system was used to acquire the locations of rollers for the positioning of rolling. An optimization algorithm based on Kalman filtering algorithm was developed to improve accuracy. The positioning experiments were carried out and the results showed that the accuracy of the civil GPS module could be improved to 1m, but was still not enough for the positioning of rolling. The accuracy of the UWB system reached 0.1 m, but the ranging area is limited. The collaborative system improved accuracy to 0.48 m with a large ranging area. Taking advantages of both subsystems, the collaborative positioning technology meets the requirements of construction monitoring at low-cost. This research could lay the foundation for continuous compaction control.
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Key words
new collaborative positioning technology,monitoring,construction
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