Concept and design of a wireless remote monitoring system for the aqueduct of Queretaro uri icon

Abstract

  • The purpose of this research is to develop monitoring tools that provide information on the current state of the Aqueduct of Queretaro's structure. Through the placement of wireless accelerometers, MEMS sensors, at diverse points of the structure, vibration readings are concentrated at a data station using a local communication interface and transmitting them with an external communication interface to the remote monitoring center using File Transfer Protocol (FTP).While the total length of the aqueduct is close to 1300 meters, the system was designed for the monitoring of a critical traffic intersection, which is located in a 110 meters segment (7 arches), thus, the wireless system specification was to cover a 200 meters range with, at least, 16 sensors. Since the aqueduct is in the urban area of the city of Queretaro, the system required additional high frequency filters to avoid external noise from high voltage energy transmission lines and telecommunication devices. Connection to the monitoring center was done through a 3G Internet link, and data post analysis considered historic structural analysis with a set of alarms to prevent anomalous or extreme vibration levels, particularly during the construction of a new intersection to increase traffic capacity in surrounding areas. The overall system concept proved to be effective for a temporary remote monitoring of the segment in the critical intersection.

Publication date

  • December 1, 2011