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Ítem Attentional Mechanism Based on a Microphone Array for Embedded Devices and a Single Camera(Springer, 2018-11-21) Martínez-Colón, Antonio; Pérez-Lorenzo, José Manuel; Rivas, Fernando; Viciana-Abad, Raquel; Reche-López, PedroThis work presents an attentional mechanism with the capability of detecting the localization of a speaker for interaction purposes, based on audio and video information. The localization is computed in terms of azimuth and elevation angles, to be used as input values for controlling mobile systems such as a pan-tilt videocamera or a robotic head. For this purpose the SRP-PHAT algorithm has been implemented with a commercial array of microphones for embedded devices, in order to estimate the localization of a sound source in the surroundings of the array. In order to improve the limitations of the SRP-PHAT algorithm in the estimation of the z coordinate, the elevation angle is corrected via video information by using Haar cascade classifiers for face detection. Simulations and experiments show the accuracy of the system, as well as the application for controlling a pan-tilt videocamera in a real scenario with speakers and ambient noise.Ítem Evaluation of a Multi-speaker System for Socially Assistive HRI in Real Scenarios(Springer, 2020-11-03) Martínez-Colón, Antonio; Viciana-Abad, Raquel; Pérez-Lorenzo, José Manuel; Evers, Christine; Naylor, Patrick A.In the field of social human-robot interaction, and in particular for social assistive robotics, the capacity of recognizing the speaker’s discourse in very diverse conditions and where more than one interlocutor may be present, plays an essential role. The use of a mics. array that can be mounted in a robot supported by a voice enhancement module has been evaluated, with the goal of improving the performance of current automatic speech recognition (ASR) systems in multi-speaker conditions. An evaluation has been made of the improvement in terms of intelligibility scores that can be achieved in the operation of two off-the-shelf ASR solutions in situations that contemplate the typical scenarios where a robot with these characteristics can be found. The results have identified the conditions in which a low computational cost demand algorithm can be beneficial to improve intelligibility scores in real environments.Ítem Towards long term acceptance of Socially Assistive Robots in retirement houses: use case definition(IEEE - Institute of Electrical and Electronics Engineers, 2020-04-15) Iglesias, Ana; Viciana-Abad, Raquel; Pérez-Lorenzo, José Manuel; Ting, Karine Lan Hing; Tudela, Alberto; Marfil, Rebeca; Dueñas, Álvaro; Bandera, Juan PedroThe deployment of new assistive technologies, in general, and Socially Assistive Robots (SAR) and Ambient Assisted Living (AAL) ecosystems, in particular, faces many issues regarding long term adherence, acceptability and utility. Most of these issues are due to design processes that do not take into account the needs, preferences and values of intended users. This paper presents the first steps of two regional projects involving long term evaluation of these technologies in the context of a retirement house. These projects follow a human-centred and participatory design approach to overcome usage barriers. To date, there are no research contributions in which a socially assistive robot, designed for and with users, has been tested in field trials for long term, in a real scenario. This paper describes the proposed methodology, the process already started to analyse practices and user’s needs, and the implementation of the first use case to be deployed for the Socially Assistive Robot in the retirement house.Ítem Building SCORM embedded WebLabs with LMS interaction(IEEE (Institute of Electrical and Electronics Engineers), 2015-02-19) Ruano Ruano, Ildefonso; García Gámez, Javier; Gómez Ortega, JuanAbstract: This paper outlines a new procedure for building educational Web Laboratories (WebLabs). These WebLabs are based on JAVA and are offered to learners from Learning Management Systems (LMSs). The Virtual-Remote Laboratories (VRL) are JAVA Applets embedded in Sharable Content Object Reference Model (SCORM) packages that are able to interact with the LMS where they are hosted. This interaction is based on the exchange of information defined by the Run-Time Environment (RTE) and the Run-Time Navigation (RTN) SCORM data models. Both models are managed by the LMS where the SCORM content has been loaded. There are three types of data: read-only, write-only and read/write. In addition, a new JAVA package called scormRTE is presented; it has been developed to facilitate the VRL-LMS information exchange. This package enables a JAVA applet to manipulate directly all the elements of RTN and RTE data models. For the validation, a VRL, created with Easy Java Simulations (EJS), has been developed using this proposal. This VRL has been embedded into a SCORM package in order to build a virtual WebLab about dynamic system modeling. In particular, it is the modelling and identification of a car's suspension dynamics. This WebLab is used in an Industrial Automation course that is offered in several Engineering Grades of the University of Jaén. It is available in the institutional LMS.Ítem A SCORM based package model for WebLabs(IEEE(Institute of Electrical and Electronics Engineers), 2015-02-19) Ruano-Ruano, Ildefonso; Gámez-García, Javier; Dormido Bencomo, Sebastián; Gómez Ortega, JuanAbstract: Web Laboratories (WebLabs) are essential resources for engineering education. Within this type of laboratory, a new Sharable Content Object Reference Model (SCORM) package design model is shown in this work. The proposed model is based on a set of resources that form a complete educational structure; taking into account the sequencing and navigation among the elements that compose it. In addition, it can be uploaded to a Learning Management System (LMS), offering to the students an effective tool to work with web labs. The package is structured in 4 sections or pages: Introduction, Theory, Virtual/Remote Laboratory (VRL) and Assessment; where the last performs an automated verification of the work done by the learner. In this way, one of the advantage of this methodology is that the instant results of the assessments, performed by the SCORM package, is stored in the inner LMS. Some WebLabs performing this methodology are being developed in the University of Jaén. In this work, an example is developed: "Modelling of Dynamic System: DC Motor". This WebLab is used in the Industrial Automation course that is included in several Industrial Engineering degrees.Ítem Integration of online laboratories-LMS via SCORM(IEEE (Institute of Electrical and Electronics Engineers), 2014-01-27) Ruano-Ruano, Ildefonso; Gómez-Ortega, Juan; Gámez-García, Javier; Estévez-Estévez, ElísabetAbstract: Web-based laboratories have been used as valuable resources to support teaching for many years. The methodology and operation of laboratories over the Internet have changed considerably since the early implementations. In fact, one of the last steps taken related to this issue has been the integration of laboratories and Learning Management Systems (LMS). In this paper we present methods that facilitate the development of virtual and/or remote labs software to interact with Learning Management Systems using Shareable Content Object Reference Model (SCORM), the most important standard for e-learning content. A virtual lab model is developed to show how the methods are used in order to integrate the virtual lab software with the LMS via SCORM.