Omar Yair, López-Rico | Universidad Nacional Autónoma de México |
Ramírez-Chavarría, Roberto Giovanni | Universidad Nacional Autónoma de México |
https://doi.org/10.58571/CNCA.AMCA.2023.082
Resumen: Data acquisition is an ubiquitous process to gather information about real-world phenomena to be processed in the digital domain. Currently, portable and wireless devices have become attractive devices for measuring several processes. However, when a high-sampling-rate is required, data acquisition systems (DAS) are still expensive and targeted at a very small niche market. Moreover, low-cost DAS are affordable but they are resource-limited mainly resulting in a low-sample-rate. Interestingly, audio-based systems are versatile, their sampling frequency ranges from 1 kHz to 192 kHz, and support input voltages from ±1.0 V at 16-bit resolution. Furthermore, Bluetooth audio devices (BTAD) are currently, popular in personal devices, which stream bunches of data using electromagnetic waves in the radio-frequency band. Nonetheless, audio-focused devices are optimized to respond to signals within the audible spectral range (20 Hz to 20 kHz), which represents a limitation to work as general-purpose DAS. In this work, we assess the advantages and limitations of low-cost BTAD to work as wireless DAS by increasing its performance and reliability. For this purpose, we introduce a robust data processing technique based on spectral analysis. Finally, the functionality of different BTADs is evaluated over a frequency range out of their native limits, and a compensation method for the frequency bias is proposed.
![Performance Analysis of Bluetooth Audio Devices As Wireless Data Acquisition Systems](/wp-content/uploads/2022/04/logotipo_amca100.png)
¿Cómo citar?
Omar Yair, López-Rico; Ramírez-Chavarría, Roberto Giovanni. Performance Analysis of Bluetooth Audio Devices As Wireless Data Acquisition Systems. Memorias del Congreso Nacional de Control Automático, pp. 419-424, 2023. https://doi.org/10.58571/CNCA.AMCA.2023.082
Palabras clave
Otros Tópicos Afines; Tecnología para Control; Educación en Control
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