Diseño e implementación de una red de sensores inalámbricos para el monitoreo del estado estructural de un puente

Abstract

One of the axes of development of a country is its road infrastructure; and within this, bridges represent an important component. The latter are susceptible to damage caused by vehicles, environmental impacts and the aging process; therefore, we must think of a cheap and efficient methodology to identify their status. This project proposes the use of Structural Health Monitoring (SHM) for bridges, this system consists of the implementation of a strategy to identify damage to civil engineering infrastructure through the integration of systems: sensors, data acquisition, data processing and archiving, communication, damage detection and modeling. Therefore it is possible to acquire knowledge about the integrity and load capacity of service structures temporarily or continuously.

Following this purpose, the use of microelectromechanical sensors used in Microelectromecha- nical Systems (MEMS) are proposed to deploy micro seismicity monitoring systems; which in

practical terms have the same components as SHM system, as well as the use of a Wireless Sensor Networks (WSN) topology in mesh with a central point of acquisition of signals. This is in terms

of instrumentation, electronics and communications, with basic treatment, oriented to baseline co- rrections, filtering and calculation of Fast Fourier Transform (FFT). The proposed system consists

of a base station that will be responsible for radio frequency communication and synchronization based on a Real Time Clock (RTC), and 10 seismic monitoring nodes based on accelerometers; each with a radio frequency link and a RTC.