Autonomous Measurements of Bridge Pier and Abutment Scour using Motion-Sensing Radio Transmitters, Tech Transfer Summary

摘要

The main objective of this study is to evaluate the capabilities of Radio Frequency IDentification (RFID) technology in collecting field data and remotely monitoring bridge scour. RFID is a wireless automated identification technology that utilizes waves at radio frequency (RF) to transfer information between a reader and a transponder via an antenna. RFID technology has several advantages over other scour monitoring methods because: (1) It requires only that the transponder falls within the detection field of the antenna, even if it is buried in the scour-hole; (2) It can identify the locations of different transponders; (3) It is flexible and cost effective because a reader/antenna system can be used with any number of transponders, which have low acquisition cost; and (4) It can be fully controlled by a host computer and therefore be fully automated.