Edgar Alonzo Martínez-García

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Bed sores, a common problem among immobile patients these days occur as blood supply to the skin is cut off in patient lying on same posture for a prolonged period of time. If left untreated, the skin can break open and become infected. Experiments performed demonstrated that the time over which a patient lies in the same posture on the bed is directly(More)
We present a visual based approach for reactive autonomous navigation of an underwater vehicle. In particular, we are interested in the exploration and continuous monitoring of coral reefs in order to diagnose disease or physical damage. An autonomous underwater vehicle needs to decide in real time the best route while avoiding collisions with fragile(More)
We present a novel technique that robustly segments free-space for robot navigation purposes. In particular, we are interested in a reactive visual navigation, in which the rapid and accurate detection of free space where the robot can navigate is crucial. Contrary to existing methods that use multiple cameras in different configurations, we use a(More)
Throughout this article we present a methodology to localize multiple people in a group by a multi-robot system (MRS). The aim of the MRS is to conduct people through hallways in indoors as a guided-tour service task. However, further than guidance process, we detail a method for humans' localization by sharing distributed sensor data arising from the team(More)
— In this paper a multi-robot system (MRS) trajectory control for conducting a group of humans is proposed. Its architecture , implementation and the strategy to conduct people by a team of robots is discussed, as well as the robots motion planning methodology is being encompassed. Some experimental results on people localization by a vision system are also(More)
The field of Robotics is ever growing at the same time as posing enormous challenges. Numerous works has been done in biologically inspired robotics emulating models, systems and elements of nature for the purpose of solving traditional robotics problems. Chromatic behaviours are abundant in nature across a variety of living species to achieve camouflage,(More)
In particular, service robotics is strongly tided to highly accurate navigational tasks where pathway tracking is a practice commonly carried out through control algorithms. This study proposes theoretical non-linear pathways presented as kth-degree polynomials as model references. Our proposal establishes a proportional control with a variable model(More)
We present a novel robotised search procedure to find flaws in buried pipelines. The motion planning system is based on an electrochemical ground measuring technique called direct-current voltage gradient (DCVG), and we combine it with the use of a tele-robotics assistance system. Remote human-robot interaction (HRI) deploys a trade on/off of information to(More)
This manuscript describes in detail the development of an avatar robot for human companion tasks. The mobile robot embodies a remote human to have communications with other human while walking in close proximity to the mobile robot. The robot takes the role of a physical interface to deploy mobility, sensors and telepresence with personification throughout(More)