Structure evaluation system, structure evaluation apparatus, and structure evaluation method

A structure evaluation apparatus comprising:

• a position locator configured to derive a wave source distribution of elastic waves generated from a structure, on the basis of the elastic waves;
• a velocity calculator configured to derive a propagation velocity of the elastic wave generated from the structure on the basis of the elastic waves;
• and
• an evaluator configured to segment the soundness of the structure into a plurality of determination regions based on a reference value of the wave source distribution of the elastic wave and a reference value of the propagation velocity of the elastic wave,
• wherein the evaluator sets a region which has a predetermined range including at least one of the reference value of the wave source distribution of the elastic wave and the reference value of the propagation velocity of the elastic wave between the determination regions, and
• wherein the evaluator evaluates the soundness of the structure depending on which of the determination regions each region of the structure to be evaluated corresponds to.

A structure evaluation method comprising:

• a position locating step of deriving a wave source distribution of elastic waves generated from a structure, on the basis of the elastic waves;
• a velocity calculating step of deriving a propagation velocity of the elastic wave generated from the structure on the basis of the elastic waves;
• and
• an evaluating step of segmenting the soundness of the structure into a plurality of determination regions based on a reference value of the wave source distribution of the elastic wave and a reference value of the propagation velocity of the elastic wave,
• wherein the evaluating step sets a region which has a predetermined range including at least one of the reference value of the wave source distribution of the elastic wave and the reference value of the propagation velocity of the elastic wave between the determination regions, and
• wherein the evaluating step evaluates the soundness of the structure depending on which of the determination regions each region of the structure to be evaluated corresponds to.

A structure evaluation system comprising:

• a plurality of sensors configured to detect an elastic wave generated from a structure;
• a position locator configured to derive a wave source distribution of the elastic waves generated from the structure, on the basis of the elastic waves;
• a velocity calculator configured to derive a propagation velocity of the elastic wave generated from the structure, on the basis of the elastic waves;
• and
• an evaluator configured to segment the soundness of the structure into a plurality of determination regions which including at least sound determination region and Limit deterioration determination region indicating that deterioration of the structure is the most advanced based on a reference value of the source distribution of the elastic wave and a reference value of the propagation velocity of the elastic wave,
• wherein the evaluator sets a region which has a predetermined range including the reference value of the propagation velocity of the elastic wave between the sound determination region and the Limit deterioration determination region, and
• wherein the evaluator evaluates the soundness of the structure depending on which of the determination regions each region of the structure to be evaluated corresponds to.