Direct Memory Access-Based Data Storage for Long-Term Acquisition Using Wearables in an Energy-Efficient Manner

This study introduces a lightweight storage system for wearable devices, aiming to optimize energy efficiency in long-term and continuous monitoring applications. Utilizing Direct Memory Access and the Serial Peripheral Interface protocol, the system ensures efficient data transfer, significantly re...

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Bibliographic Details
Published in:Sensors (Basel, Switzerland) Switzerland), 2024-08, Vol.24 (15), p.4982
Main Authors: Dobrescu, Cosmin C, González, Iván, Carneros-Prado, David, Fontecha, Jesús, Nugent, Christopher
Format: Article
Language:English
Subjects:
Accuracy
Communication
Comparative analysis
continuous monitoring
Cost control
Data analysis
Data integrity
Design
DMA controller
embedded storage management
Embedded systems
Energy consumption
Energy efficiency
Energy management systems
Energy use
long-term monitoring
Sensors
Software
ultra-low power data storage
Wearable computers
wearable devices
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Description
Summary:This study introduces a lightweight storage system for wearable devices, aiming to optimize energy efficiency in long-term and continuous monitoring applications. Utilizing Direct Memory Access and the Serial Peripheral Interface protocol, the system ensures efficient data transfer, significantly reduces energy consumption, and enhances the device autonomy. Data organization into Time Block Data (TBD) units, rather than files, significantly diminishes control overhead, facilitating the streamlined management of periodic data recordings in wearable devices. A comparative analysis revealed marked improvements in energy efficiency and write speed over existing file systems, validating the proposed system as an effective solution for boosting wearable device performance in health monitoring and various long-term data acquisition scenarios.
ISSN:1424-8220
1424-8220
DOI:10.3390/s24154982