Wi-GIM

Wireless Sensor Network for Ground Instability Monitoring project

Landslides and subsidence have an high destructive potential and often threaten people or structures. Therefore scientists have long tried to develop systems to monitor these processes. Although the effort lavished, the high cost of the current monitoring systems and the difficulties in setting them up in remote areas, limit their extensive installation.

Wireless sensor network for Ground Instability Monitoring (Wi-GIM) project aims, in the frame of EU LIFE+ program, to develop an accurate, flexible and low-cost system for ground deformation monitoring.

The Wi-GIM system is based on two types of wireless devices: the nodes (sensor node - SN) and base stations (Base Station - BS).

The movement of the landslide is detected by acquiring the position of each of the SN that are organized in a wireless sensor network (WSN), whose position is determined by integrating two different technologies, specifically designed for the purpose. The data collected by technology 1 are processed with the data collected by technology 2 in order increase the accuracy of the system. The displacements of the landslide can be then displayed in different modes, including 3D.

Objectives

- to implement a WSN able to detect deformations with reasonable costs in the pilot sites of Roncovetro (Italy) and Sallent Village (Spain)
- to assess the limits and potentials of Wi-GIM by comparing the results with conventional monitoring methods
- to identify the potential problems inhibiting the full-scale implementation of the system and find solutions to overcome them
- to evaluate the environmental and social benefits and the economic feasibility of this innovative application