Back to results
US 8,412,470 B2Granted
Change mapping for structural health monitoring
AssigneeThe Boeing Company
InventorV. John Mathews
Life of this patent
Estimating the term…
Abstract
A method is present for mapping changes in a structure. A plurality of responses is collected from a set of transmitter and sensor pairs for the structure. Change metrics for pixels in a plurality of grids are identified from the plurality of responses, wherein a first grid in the plurality of grids is shifted in relation to a second grid in the plurality of grids. A map is generated for the structure using the change metrics.
Claims16
A method for mapping changes in a structure, the method comprising:
- collecting a plurality of responses from a set of transmitter and sensor pairs for the structure, the plurality of responses comprising responses to signals in a waveform with a frequency range selected to map the changes in the structure;
- identifying on a computer change metrics for pixels in a plurality of grids from the plurality of responses, wherein a first grid in the plurality of grids is shifted in relation to a second grid in the plurality of grids, the identifying comprising:
- finding a length of a path passing through a pixel in an unprocessed grid;
- obtaining a solution for a change metric in a set of pixels to estimate a set of change metrics for the unprocessed grid;
- and
- repeating the finding and obtaining steps until the plurality of grids have been processed to obtain a plurality of sets of change metrics that are combined to form a final change metrics map for the structure;
- and
- generating on the computer a map for the structure using the change metrics.
5 more elements
An apparatus comprising:
- a structure having a set of components;
- a set of transmitters physically associated with the set of components, wherein the set of transmitters is capable of sending signals into the set of components;
- a set of sensors physically associated with the set of components, wherein the set of sensors is capable of detecting a response to the signals;
- and
- a data processing system in communication with the set of transmitters and the set of sensors, wherein the data processing system is capable of collecting a plurality of responses from the set of transmitters and the set of sensors, the plurality of responses comprising responses to the signals in a waveform with a frequency range selected to map the structure;
- identifying change metrics for pixels in a plurality of grids from the plurality of responses, wherein a first grid in the plurality of grids is shifted in relation to a second grid in the plurality of grids, the identifying comprising:
- finding a length of a path passing through a pixel in an unprocessed grid;
- obtaining a solution for a change metric in a set of pixels to estimate a set of change metrics for the unprocessed grid;
- and
- repeating the finding and obtaining steps until the plurality of grids have been processed to obtain a plurality of sets of change metrics that are combined to form a final change metrics map for the structure;
- and
- generating a map for the structure using the change metrics.
9 more elements
A computer program product comprising:
- a nontransitory computer readable storage medium;
- program code, stored on the storage medium, for collecting a plurality of responses from a set of transmitter and sensor pairs for a structure, the plurality of responses comprising responses to signals in a waveform with a frequency range selected to map the structure;
- program code, stored on the storage medium, for identifying change metrics for pixels in a plurality of grids from the plurality of responses, wherein a first grid in the plurality of grids is shifted in relation to a second grid in the plurality of grids, the identifying comprising:
- finding a length of a path passing through a pixel in an unprocessed grid;
- obtaining a solution for a change metric in a set of pixels to estimate a set of change metrics for the unprocessed grid;
- and
- repeating the finding and obtaining steps until the plurality of grids have been processed to obtain a plurality of sets of change metrics that are combined to form a final change metrics map for the structure;
- and
- program code, stored on the storage medium, for generating a map for the structure using the change metrics.
6 more elements
Dependencies are inferred from the claim text.