RDF description Aitor Villar-Martinez

PhD. Student


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Nov. 2018  -  Present
aitor.v [at] deusto.es

 +34 94 413 90 03 - ext: 3033

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[u' @inproceedings{orduna_weblablib:_2019, address = {Bangalore, India}, title = {weblablib: new approach for creating remote laboratories}, abstract = {Remote laboratories are hardware and software tools that enable students to access real equipment through the Internet. Remote Laboratory Management Systems (RLMS) are software tools developed for creating remote laboratories in an easier way, providing some of the transversal features common in most remote labs (such as authentica- tion, authorization, scheduling platforms or administration tools), and some protocols or APIs (Application Programming Interfaces) for cre- ating the laboratories. WebLab-Deusto is a popular open source RLMS used in different universities to create or administer their remote labo- ratories; and it offers two approaches for developing remote laboratories: managed (where all the communications go through WebLab-Deusto) and unmanaged (where the communications are managed by the remote lab developer). While originally the managed approach had a number of advantages over the unmanaged, nowadays, with web development tech- nologies fastly changing and increasing productivity, it became important to provide a proper support for the unmanaged by creating a completely new framework called weblablib, developed by LabsLand and also Open Source. This article describes this framework, and the different trade- offs that remote lab developers have to deal with when implementing a remote laboratory.}, author = {Ordu\xf1a, Pablo and Rodriguez-Gil, Luis and Angulo, Ignacio and Hernandez, Unai and Villar-Martinez, Aitor and Garcia-Zubia, Javier}, month = feb, year = {2019} }']

[u' @article{villar-martinez_improving_2019, title = {Improving the {Scalability} and {Replicability} of {Embedded} {Systems} {Remote} {Laboratories} {Through} a {Cost}-{Effective} {Architecture}}, volume = {7}, issn = {2169-3536}, doi = {10.1109/ACCESS.2019.2952321}, abstract = {Online remote laboratories are a particularly promising tool for effective STEM education. They offer online universal access to different hardware devices in which students can experiment and can test and improve their knowledge. However, most of them have two significant limitations. First, given that most of them are developed as, or evolve from single-user proofs of concept, they have no scalability provisions other than full laboratory replication. And second, when this is done, cost efficiency is often neglected. This paper presents the requirements for the creation of a novel remote laboratory architecture focused on, but not limited to, embedded systems experimentation. An architecture, based on Redis (an open source, in-memory data structure store, which is often used as database, cache or message broker), a modular design, and hardware-sharing techniques, is proposed in order to achieve the combined requirements of high scalability and cost efficiency. This mixed hardware-software architecture serves as a basis for the development of remote laboratories, especially those focused on microcontroller-based systems experimentation and embedded devices experimentation. From a user perspective the architecture is web-based, and has provisions to be easily adaptable to different Learning Management Systems and different hardware embedded devices. A new microcontroller-oriented remote laboratory based on the architecture has been developed, with the aim of providing valid evaluation data, and has been used in a real environment. The architecture and the resulting remote laboratory have been compared with other state of the art remote laboratories and their architectures. Results suggest that the proposed architecture does indeed meet the main requirements, which are scalability through replicability and cost efficiency. Furthermore, similarly to previous architectures, it promotes usability, universal access, modularity and reliability.}, journal = {IEEE Access}, author = {Villar-Mart\xednez, Aitor and Rodr\xedguez-Gil, Luis and Angulo, Ignacio and Ordu\xf1a, Pablo and Garc\xeda-Zub\xeda, Javier and L\xf3pez-De-Ipi\xf1a, Diego}, year = {2019}, keywords = {Computer architecture, Embedded systems, Hardware, ISI, Reliability, Remote laboratories, Remote laboratory, Scalability, Servers, architecture, embedded system, jcr4.098, online experimentation, scalability}, pages = {164164--164185} }']