Carlos E. Agüero

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Mobile robots need to be able to communicate among them, and with other hosts participating in a given task. Traditional wired networks are obviously not suitable for mobile robots. Current wireless networks are usually based on a fixed network infrastructure (base stations) to route packets. The best alternative for mobile robots are Ad-Hoc networks, which(More)
Software architectures are essential for robotic applications development. They organize perception and actuation capabilities in order to achieve the goals the robots for which are developed. In this paper we present the third major release of our software architecture, named BICA, that aims to be applied in a wide range of applications using the Nao(More)
Existing robot guides are able to offer a tour of a building, such as a museum, bank, science center, to a single person or to a group of participants. Usually the tours are predefined and there is no support for dynamic interactions between multiple robots. This paper focuses on distributed collaboration between several robot guides providing a building(More)
This paper presents the application developed for humanoid robots which are used in therapy of dementia patients, as a cognitive stimulation tool. It has been created using BICA, a component oriented framework for programming robot applications, which is also described. The developed robotherapy application includes the control software onboard the robot(More)
This paper describes a simple behavior based approach that makes an humanoid robot search and go to a ball. This behavior is composed by several execution units called components, which are activated and modulated by another ones in an activation tree. The main goals of this behavior are: Reactive control which hides robot complexity, component(More)
Cameras are one of the most relevant sensors in autonomous robots. One challenge with them is to manage the small field of view of regular cameras. A method of coping with this, similar to the attention systems in humans, is to use mobile cameras to cover all the robot surroundings and to perceive all the objects of interest to the robot(More)
How to coordinate a set of robots is still an open issue. It is a problem made up by several sub-problems. One of them is how to share information among the members of a team without compromising the basic requirements of the application. In this paper we show the communication architecture we have designed to let a team of robots communicate. We present an(More)
Robots must detect and keep track of relevant objects in the environment to accomplish a task. Those which are equipped with directional cameras as their main sensor have to process the images and maintain an internal representation of the detected objects. To detecting new objects and update previously detected objects, these robots move their cameras to(More)
INTRODUCTION AND AIM In 2008 the International autoimmune hepatitis (AIH) Group proposed the simplified diagnostic criteria for this disease. The original cohort study was performed in 11 international centers, but validation studies are scarce in Latin-America. The aim of this study is validate these criteria in Hispanic patients. MATERIAL AND METHODS A(More)