Multi-channel low-cost light spectrum measurement using a multilayer perceptron

Light is one of the most important elements for residential and work spaces, which affects visual performance, comfort, productivity and well-being. The measures that quantify the characteristics of a light source are derived directly from the spectral power distribution (SPD). In addition the SPD is an important factor influencing the quality of a light source. However, measuring light source spectrum with traditional spectrometers is expensive, difficult to adapt to normal spaces, and hard to integrate with other systems. To address these challenges, a low-cost spectrometer was developed using an Artificial Neural Network, with a resolution of 5 nm in the visible spectrum. The reconstructed SPD has an error lower than 2% and allows the derivation of measurements to characterize the colour quality of light sources. Additionally, the device has wireless communication (Bluetooth and Wi-Fi) in real time, which allows integration into lighting control applications and other Internet of things (IoT) applications.



Work Title Multi-channel low-cost light spectrum measurement using a multilayer perceptron
Open Access
  1. J. S. Botero-Valencia
  2. J. Valencia-Aguirre
  3. D. Durmus
  4. W. Davis
License In Copyright (Rights Reserved)
Work Type Article
  1. Energy and Buildings
Publication Date September 15, 2019
Publisher Identifier (DOI)
Deposited July 16, 2021




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Work History

Version 1

  • Created
  • Added 1-s2.0-S0378778819309788-PREPRINT2.pdf
  • Added Creator J. S. Botero-Valencia
  • Added Creator J. Valencia-Aguirre
  • Added Creator D. Durmus
  • Added Creator W. Davis
  • Published
  • Updated
  • Updated