Smart Sensing Using Wavelets Project

Metadata Updated: May 2, 2019

[HTML_REMOVED]p[HTML_REMOVED]Further refinements to the FOSS technologies are focusing on [HTML_REMOVED]ldquo;smart[HTML_REMOVED]rdquo; sensing techniques that adjust sensing parameters as needed in real time so that only the necessary amount of data is acquired [HTML_REMOVED]ndash; no more, no less. Traditional FOSS signal processing is based on Fourier transforms that break up the length of the fiber into analysis sections that are equal in length along the whole fiber. If high resolution is required along one portion of the fiber, the whole fiber must be processed at that resolution. Wavelet transforms make it possible to efficiently break up the length of the fiber into analysis sections that vary in length. If high resolution is required along one portion of the fiber, only that portion is processed at high resolution, and the rest of the fiber can be processed at the lower resolution.[HTML_REMOVED]/p[HTML_REMOVED][HTML_REMOVED]p[HTML_REMOVED][HTML_REMOVED]strong[HTML_REMOVED]Work to date[HTML_REMOVED]/strong[HTML_REMOVED]: The team has developed a C language prototype of a wavelet-based signal processing algorithm. This static form currently operates at half the speed of the Fourier-based algorithm but it will be able to operate 3-4 times faster when optimized.[HTML_REMOVED]nbsp;The team has also developed a LabVIEW prototype of the adaptive form of the algorithm. This form provides real-time adaptive spatial resolution.[HTML_REMOVED]nbsp;For example: when strain on a wing increases during flight, the software will automatically increase the resolution on the part of the fiber that is under strain.[HTML_REMOVED]/p[HTML_REMOVED][HTML_REMOVED]p[HTML_REMOVED][HTML_REMOVED]strong[HTML_REMOVED]Looking ahead[HTML_REMOVED]/strong[HTML_REMOVED]: Next steps involve optimizing the code and implementing it on a digital signal processing (DSP) chip.[HTML_REMOVED]nbsp;A patent application for the wavelet algorithm has been filed with the USPTO.[HTML_REMOVED]/p[HTML_REMOVED][HTML_REMOVED]p[HTML_REMOVED][HTML_REMOVED]strong[HTML_REMOVED]Benefits[HTML_REMOVED]/strong[HTML_REMOVED][HTML_REMOVED]/p[HTML_REMOVED][HTML_REMOVED]ul[HTML_REMOVED][HTML_REMOVED]li[HTML_REMOVED][HTML_REMOVED]strong[HTML_REMOVED]Improved efficiency[HTML_REMOVED]/strong[HTML_REMOVED]: Offers precision measurement only where it is needed rather than on the entire fiber[HTML_REMOVED]/li[HTML_REMOVED][HTML_REMOVED]li[HTML_REMOVED][HTML_REMOVED]strong[HTML_REMOVED]Faster signal processing[HTML_REMOVED]/strong[HTML_REMOVED]: Data can be processed at different resolutions at different fiber segments[HTML_REMOVED]/li[HTML_REMOVED][HTML_REMOVED]li[HTML_REMOVED][HTML_REMOVED]strong[HTML_REMOVED]Adaptive[HTML_REMOVED]/strong[HTML_REMOVED]: Automatically selects optimum resolution based on data received[HTML_REMOVED]/li[HTML_REMOVED][HTML_REMOVED]/ul[HTML_REMOVED][HTML_REMOVED]p[HTML_REMOVED][HTML_REMOVED]strong[HTML_REMOVED]Applications[HTML_REMOVED]/strong[HTML_REMOVED][HTML_REMOVED]/p[HTML_REMOVED][HTML_REMOVED]ul[HTML_REMOVED][HTML_REMOVED]li[HTML_REMOVED]Strain sensing[HTML_REMOVED]/li[HTML_REMOVED][HTML_REMOVED]li[HTML_REMOVED]Temperature measurements[HTML_REMOVED]/li[HTML_REMOVED][HTML_REMOVED]/ul[HTML_REMOVED]

Access & Use Information

Public: This dataset is intended for public access and use. License: U.S. Government Work

Downloads & Resources

References

http://techport.nasa.gov/home
http://techport.nasa.gov/doc/home/TechPort_Advanced_Search.pdf
http://techport.nasa.gov/fetchFile?objectId=6561
http://techport.nasa.gov/fetchFile?objectId=3456
http://techport.nasa.gov/fetchFile?objectId=3447
http://techport.nasa.gov/fetchFile?objectId=6584
http://techport.nasa.gov/fetchFile?objectId=6560
http://techport.nasa.gov/fetchFile?objectId=3448

Dates

Metadata Created Date August 1, 2018
Metadata Updated Date May 2, 2019

Metadata Source

Harvested from NASA Data.json

Additional Metadata

Resource Type Dataset
Metadata Created Date August 1, 2018
Metadata Updated Date May 2, 2019
Publisher Aeronautics Research Mission Directorate
Unique Identifier TECHPORT_14614
Maintainer
Philip Hamory
Maintainer Email
Public Access Level public
Bureau Code 026:00
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Metadata Catalog ID https://data.nasa.gov/data.json
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Datagov Dedupe Retained 20190501230127
Harvest Object Id fd6a23a3-c5c0-490e-a143-e38e85965ab5
Harvest Source Id 39e4ad2a-47ca-4507-8258-852babd0fd99
Harvest Source Title NASA Data.json
Data First Published 2011-01-01
Homepage URL http://techport.nasa.gov/view/14614
License http://www.usa.gov/publicdomain/label/1.0/
Data Last Modified 2018-07-18
Program Code 026:000
Related Documents http://techport.nasa.gov/home, http://techport.nasa.gov/doc/home/TechPort_Advanced_Search.pdf, http://techport.nasa.gov/fetchFile?objectId=6561, http://techport.nasa.gov/fetchFile?objectId=3456, http://techport.nasa.gov/fetchFile?objectId=3447, http://techport.nasa.gov/fetchFile?objectId=6584, http://techport.nasa.gov/fetchFile?objectId=6560, http://techport.nasa.gov/fetchFile?objectId=3448
Source Datajson Identifier True
Source Hash 6ef4b28264f4fbc4b39226cf1a473b4573ba6206
Source Schema Version 1.1
Temporal 2011-01-01T00:00:00Z/2016-12-01T00:00:00Z

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