Integrated LED/Imaging Illumination Panels Demonstrated within a Small Plant Growth Chamber Project

Metadata Updated: July 17, 2020

[HTML_REMOVED]p[HTML_REMOVED][HTML_REMOVED]strong[HTML_REMOVED]LED light sources are ideal for plant growth systems. However, commercially available multi-color LED illumination panels are designed and manufactured to produce a single particular illumination. These panels have very specific LED colors arranged in a very specific fashion. This limits the amount of color mixing, intensity variation, and spatial arrangement that is possible, precluding passive precision illumination. There is no feedback mechanism to detect spectral shifts caused by LED aging and additionally, there is no mechanism to modulate LEDs. It is also not possible to integrate an imaging system into these panels. Furthermore, these panels are commonly operated using high voltage AC power sources, which is not ideal in a potentially wet environment. Therefore, to address these issues, custom LED illumination panels were designed and developed for this project[HTML_REMOVED]rsquo;s plant growth chamber.[HTML_REMOVED]/strong[HTML_REMOVED][HTML_REMOVED]/p[HTML_REMOVED][HTML_REMOVED]p[HTML_REMOVED][HTML_REMOVED]strong[HTML_REMOVED]A systematic approach was taken to determine the general size, specifications, and shape of a portable plant growth unit. Once the general size and shape were finalized, the detailed design of the support structure, aeroponics, and lighting subsystems were developed. Particular attention was given to heat transfer and the expected LED thermal environment.[HTML_REMOVED]nbsp; Additionally, a[HTML_REMOVED]nbsp;[HTML_REMOVED]/strong[HTML_REMOVED][HTML_REMOVED]strong[HTML_REMOVED]computational analysis was performed to determine optimal LED nodes placement so that two different uniform illumination fields could be yielded:[HTML_REMOVED]nbsp; (1) for germinating plants, lower intensity light, and (2) for larger maturing plants, a brighter one.[HTML_REMOVED]nbsp; Also, aeroponic studies were reviewed to identify an efficient and user-friendly system that would require minimal user involvement.[HTML_REMOVED]/strong[HTML_REMOVED][HTML_REMOVED]/p[HTML_REMOVED]

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Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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Metadata Created Date August 1, 2018
Metadata Updated Date July 17, 2020

Metadata Source

Harvested from NASA Data.json

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Resource Type Dataset
Metadata Created Date August 1, 2018
Metadata Updated Date July 17, 2020
Publisher Office of the Chief Technologist
Unique Identifier TECHPORT_17352
Ramona Travis
Maintainer Email
Public Access Level public
Bureau Code 026:00
Metadata Context
Metadata Catalog ID
Schema Version
Catalog Describedby
Harvest Object Id 6afc2a1c-ae54-4aab-ba59-9788b4439d99
Harvest Source Id 39e4ad2a-47ca-4507-8258-852babd0fd99
Harvest Source Title NASA Data.json
Data First Published 2013-09-01
Homepage URL
Data Last Modified 2020-01-29
Program Code 026:000
Related Documents,,,,,,,
Source Datajson Identifier True
Source Hash 9b34f276837ff2e2e3941301f386d478acbdd87a
Source Schema Version 1.1
Temporal 2013-09-01T00:00:00Z/2014-12-01T00:00:00Z

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