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Open AccessArticle

A Miniature Data Repository on a Raspberry Pi

Information Technology Group, Wageningen University, Hollandseweg 1, Wageningen 6706 KN, The Netherlands
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Academic Editors: Steven J. Johnston and Simon J. Cox
Electronics 2017, 6(1), 1; https://doi.org/10.3390/electronics6010001
Received: 22 September 2016 / Revised: 14 December 2016 / Accepted: 15 December 2016 / Published: 28 December 2016
(This article belongs to the Special Issue Raspberry Pi Technology)
This work demonstrates a low-cost, miniature data repository proof-of-concept. Such a system needs to be resilient to power and network failures, and expose adequate processing power for persistent, long-term storage. Additional services are required for interoperable data sharing and visualization. We designed and implemented a software tool called Airchive to run on a Raspberry Pi, in order to assemble a data repository for archiving and openly sharing timeseries data. Airchive employs a relational database for storing data and implements two standards for sharing data (namely the Sensor Observation Service by the Open Geospatial Consortium and the Protocol for Metadata Harvesting by the Open Archives Initiative). The system is demonstrated in a realistic indoor air pollution data acquisition scenario in a four-month experiment evaluating its autonomy and robustness under power and network disruptions. A stress test was also conducted to evaluate its performance against concurrent client requests. View Full-Text
Keywords: Raspberry Pi; data repository; interoperability; data archive; data sharing; Sensor Observation Service; Protocol for Metadata Harvesting; indoor air pollution; data acquisition; persistent storage; low cost hardware; Internet of Things Raspberry Pi; data repository; interoperability; data archive; data sharing; Sensor Observation Service; Protocol for Metadata Harvesting; indoor air pollution; data acquisition; persistent storage; low cost hardware; Internet of Things
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    Doi: http://doi.org/10.5281/zenodo.167318; http://doi.org/10.5281/zenodo.167319;http://doi.org/10.5281/zenodo.167326
MDPI and ACS Style

Samourkasidis, A.; Athanasiadis, I.N. A Miniature Data Repository on a Raspberry Pi. Electronics 2017, 6, 1.

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