US 8,410,924 B2 · Method and system for remote monitoring deformations of a structure

Abstract

A low-cost and non-invasive method for remote monitoring deformations of a structure (2), which method envisages to couple at least two RFID tags (3) to the structure (2) in its respective points (10a, 10b, 10a-10c), 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 deformations of the structure (2) as a function of the measurements of the resultant electromagnetic field.

Claims22

Dependent claims

Method for remote monitoring deformations of a structure (2), which method comprises:

coupling at least two RFID tags (3) to the said structure (2) in respective points (9a, 9b;
9a-9c) of the structure (2) itself;
interrogating at radio frequency the RFID tags (3) so that a resultant electromagnetic field is produced at a certain distance (DINF) from said structure (2), said resultant electromagnetic field ensuing from a combination of the electromagnetic fields singularly produced by the RFID tags (3) in response to the interrogation;
measuring the electromagnetic field at said certain distance (DINF) to obtain measurements of said resultant electromagnetic field;
and
determining said deformations of the structure (2) as a function of the measurements of the resultant electromagnetic field.

3 more elements

Method for remote monitoring displacements of points of a structure (2), which method comprises:

coupling at least one RFID tag (3) to said structure (2) in a respective point to be monitored (10b;
10b, 10c;
10a, 10b, 10c) of the structure (2) itself;
associating a further RFID tag (3) to a determined reference point (10a;
13);
interrogating at radio frequency the RFID tags (3) so that a resultant electromagnetic field is produced at a certain distance (DINF) from said structure (2), said resultant electromagnetic field ensuing from a combination of the electromagnetic fields individually produced by the RFID tags (3) in response to the interrogation;
measuring the electromagnetic field at said certain distance (DINF) to obtain measurements of said resultant electromagnetic field;
and
determining displacements of said point to be monitored (10b;
10b,10c;
10a, 10b, 10c) as a function of said measurements of the resultant electromagnetic field.

8 more elements

Dependencies are inferred from the claim text.

Method and system for remote monitoring deformations of a structure

Life of this patent

Method and system for remote monitoring deformations of a structure

Life of this patent

Abstract

Claims22