| 摘要 |
<p>A low-cost and non-invasive method for remote monitoring displacements of points of a structure (2), which method envisages to couple at least one RFID tag (3) to the structure (2) in a respective point (10b; 10b, 10c; 10a, 10b, 10c) to be monitored, to associate a further RFID tag (3) to a determined reference point (10a; 13), to interrogate at radio frequency the RFID tags (3) so that a resultant electromagnetic field is produced at a certain distance (DINF) from the structure (2), the resultant electromagnetic field ensuing from a combination of the electromagnetic fields produced individually by each RFID tags (3) in response to the interrogation, to measure the resultant electromagnetic field at such a distance (DINF) from the structure (2) for obtaining measurements of the resultant electromagnetic field, and to determine the displacements of the point (10b; 10b, 10c; 10a, 10b, 10c) to be monitored as a function of the measurements of the resultant electromagnetic field.</p> |
