Browsing by Author "Fernandes, Daniel"
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- Combining IoT and users’ profiles to provide contextualized information and servicesPublication . Fernandes, Daniel; Cunha, Carlos R.; Gomes, João Pedro; Santos, ArlindoTechnological evolution has led to the emergence of a set of solutions suitable to support mobility and ubiquity scenarios. Wireless computing and mobile devices together with the miniaturization of sensors and actuators, which are now embedded in physical spaces, are today’s reality. This phenomenon opened the door to a set of opportunities for reengineering how we perceive a given fact or situation and how we act on it. With regard to the delivery of information to users of a given physical space, there is now the possibility of radically transforming the mechanisms of interaction between the space and the user, redesigning the entire experience of interaction. This change allows the user to see the physical space around him adapt to himself and provide him with contextualized and personalized information according to his profile of interest. This approach can improve the way we manage customer relationships in a given business context. This article presents an overview of the state of the art of intelligent spaces and analyzes the potential of indoor positioning systems and techniques, and proposes a conceptual model for the detection of users in physical spaces and the consequent adaptation of an intelligent physical space to provide information aligned with the user's interest profile and in accordance with their privacy rules.
- Combining smart spaces and indoor positioning for delivering contextualized information according to users’ profilePublication . Fernandes, Daniel; Cunha, Carlos R.; Gomes, João Pedro; Santos, ArlindoThe evolution of technology has led to a set of technologies suitable for mobility and ubiquity scenarios. Phenomena of wireless computing, mobile devices and, generally, miniaturized sensors and actuators embedded in physical spaces are a today’s reality. This phenomenon has opened the door to a set of opportunities for reengineering the way we perceive a given fact or situation and the way we act on it. Regarding the delivery of information to users of a given physical space, there is now the possibility of transforming the mechanisms of interaction between the space and the user. This change allows the user to see the physical space, that surrounds him, to adapt to himself and to provide him contextualized and personalized information according to his profile of interest. This approach can improve the way we manage customer relationships in a given business context. This paper overview the state of the art of smart spaces and analyses the potential of indoor positioning systems and techniques, and propose a conceptual model for the detection of users in physical spaces and the consequent adaptation of a smart physical space to provide information aligned with the user's profile of interest and according to is privacy rules.
- A kinematical, imagiological and acoustical biofeedback system for the technical training in breaststroke swimmingPublication . Lima, António B.; Semblano, P.; Fernandes, Daniel; Gonçalves, Pedro; Morouço, Pedro; Sousa, Filipa; Fernandes, Ricardo J.; Barbosa, Tiago M.; Velhote, Miguel C.; Tani, G.; Vilas-Boas, João PauloA system for real time velocimetric feedback, and for immediate disposal of kinematica data, and model, synchronized with dual-media video images, will be presented.
- Validation of a cable speedometer for butterfly evaluationPublication . Morouço, Pedro; Lima, António B.; Semblano, P.; Fernandes, Daniel; Gonçalves, Pedro; Sousa, Filipa; Fernandes, Ricardo J.; Barbosa, Tiago M.; Velhote, Miguel C.; Vilas-Boas, João PauloGetting fast results from the evaluation of swimmers is one of the most important goals to achieve with technological development in the field. The purpose of this study was to validate a real-time velocimetric device (speedometer) through the comparison of their results with computer assisted videogrametry. The sample included 7 international level swimmers (3 females and 4 males). Each swimmer performed four 25m trials, two at 200m race pace and two at 50m race pace. For each trial, two stroke cycles were studied, resulting on a total of 28 cycles SWIMMING EVALUATION, ADVICE AND BIOFEEDBACK Rev Port Cien Desp 6(Supl.2) 201–282 237 analysed. Hip v(t) curves obtained from speedometer and videogrametry were compared, as well as the speedometer hip curve with the one of the centre of mass (CM). The higher mean correlation obtained was between vhip1 and vhip2 (0.955±0.028), followed by vhip1 with vCM (0.920±0.049). The lower correlation was vhip2 vs. vCM (0.878±0.053). It was concluded that the speedometer is a reliable, fast and interactive tool for training advice.
- Validation of a cable speedometer for butterfly strokePublication . Morouço, Pedro; Lima, António B.; Semblano, P.; Fernandes, Daniel; Gonçalves, Pedro; Sousa, Filipa; Fernandes, Ricardo J.; Barbosa, Tiago M.; Velhote, Miguel C.; Vilas-Boas, João PauloMost of the approaches available for technical evaluation of swimmers are very expensive and time consuming. Thus, one of the most important goals to achieve in swimming research should be to get fast and interactive results from the evaluation process. The purpose of this research was to compare me real-time velocimetric results obtained from a cable velocimeter with those extracted from computerised videogrametry.