Diseño e implementación de un sistema prototipo digitalizador de señales sísmicas, empelando tecnología ZigBee para la Red Sísmica del Austro

Abstract

The recording of seismic signals allows early warnings systems helps reduce the risk of natural phenomena. Also evaluates the structural health of buildings to have an idea of the behavior of the structure in front of a seismic event; also these types of signal help to have a geotechnical information. Currently in the Red Sismica del Austro, the ES-300 equipment is available for the seismic refraction prospection. This equipment uses physical connectors to connect their nodes, this derives in a problem due to the cable routing and the time it takes the installation of its nodes; for this reason, the objective of this work is to implement a system for the acquisition of synchronized seismic signal through a ZigBee network. To do this, a star network topology was proposed, which has 1 master node and 13 slave nodes; also has a synchronization based on the RBS algorithm, and it was added a baseline correction, as well as the identification of the gains versus distance; all this to receive the data in a PC and present them in SEG2 format. It turned out that the digitizer worked satisfactorily in the case of a seismic prospection in which it was possible to observe and identify the arrival times of the p wave until covering a distance of 60m. Finally, it could be concluded that using the CC2530 module, this digitizer fulfilled expectations by making the maximum use of it, that is, its design was ideal for the purpose that was planned.