RT info:eu-repo/semantics/article
T1 Development of an optical signal-based IPS from an MCU-SoC
A1 Rubiano Muriel, Borja
A1 Lázaro Galilea, José Luis
A1 Gardel Vicente, Alfredo
A1 Llana Calvo, Álvaro de la
A1 Bravo Muñoz, Ignacio
K1 Visible Light Positioning (VLP)
K1 Signal processing in MCU
K1 PSD sensor
K1 Multiagent
K1 FDMA
K1 Optical signal
K1 Electrónica
K1 Electronics
AB In this work, we have studied the integration of an optical signal-based Indoor Positioning System (IPS) capable of supporting multi-access discrimination techniques. The research analyzes the different techniques and conditions that can be used to develop an IPS using a microcontroller unit (MCU)-based system-on-chip (SoC) systems. The main goal is to be able to integrate into the MCU both the hardware and software requirements for an IPS detector. In this way, different strategies that can implement multi-access discrimination using Frequency-division multiple access (FDMA) have been tested, such as I/Q demodulation, digital filtering, and discrete Fourier transform (DFT). This analysis has found a good technique to be executed in an MCU-based SoC, the DFT implemented through the Goertzel's algorithm. The empirical tests carried out concluded that, usingonly one an MCU with the required HW and tuned SW, 15 position measurements per second werecomputed, with high accuracy in the 3-D positioning, with errors of less than 1 cm in a test area of 3.5 x 3.5 m2. The main contribution of the paper is the implementation of the optical signal based IPS in an MCU-SoC that includes signal acquisition and processing. The digital filtering or spectral processing for up to 16 received signals makes this IPS system very attractive from a design and costpoint of view.
PB MDPI
SN 2079-9292
YR 2020
FD 2020-05-01
LK http://hdl.handle.net/10017/43244
UL http://hdl.handle.net/10017/43244
LA eng
NO Agencia Estatal de Investigación
DS MINDS@UW
RD 18-abr-2024