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Marcel Tresanchez - IEEE Xplore Author Profile

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The practical implementation of digital systems during the lab sessions of an undergraduate digital electronics course can be done using monolithic integrated circuits such as the TTL 7400 or CMOS 4000 series and breadboard wires to connect them into a protoboard, or using reconfigurable hardware devices such as the FPGAs. In the first approach, many students face difficulties in the wiring and te...Show More
This paper presents the preliminary characterization results of a custom wind tunnel for designed for performing experiments on locating a volatile gas source with a mobile robot. Such experiments require a previous characterization of the wind tunnel as well as the definition of the configurable agents which are present during the experiments. This paper presents the experimental data gathered fr...Show More
This paper presents the preliminary results obtained when using a mobile robot to measure gas and wind intensity in an indoor area by means of several attached sensors such as a LIDAR, an e-nose, and an anemometer. The robot navigation was performed by means of a random path planning and the robot self location was performed by means of an SLAM procedure. This paper presents the first preliminary ...Show More
This paper presents the experimental application of an autonomous mobile robot for gas leak detection in indoor environments. The application is focused to automatize a human-risky operation in indoor areas. The goal of the autonomous mobile robot is the localization of a toxic gas leak source. So, the mobile robot has to explore the whole area and perform an auto-localization procedure based on a...Show More
This paper proposes the assessment of different methods designed for time domain detection of pure vowel sounds in order to develop future devices with simplified computer interaction focused on people with physical disabilities. The time domain detection method is based on filter the sound, detect periodic information and then compute the average periodic amplitude of the filtered and non-filtere...Show More
This work presents a preliminary study of pupil detection and tracking with low cost optical flow sensors. In this proposal, the low cost optical flow sensor designed originally for the optical computer mouse has been used in a pupil detection and tracking device. The application was based on the use of this sensor as an imaging combined with a microcontroller. In the future the tracking results w...Show More
This work presents a preliminary study on an automatic color based nectarine variety classification system. This system is planned to operate in a fruit packing line in order to contribute to increase the quality of an industrial post-harvesting process by verifying nectarine variety. This proposal is based on the computation of the histogram of the hue, saturation, and value (HSV) skin color desc...Show More
In this paper a turtle's hydrofoil 2 DoF's mechanism (degrees of freedom) is implemented and tested in a water channel as a propulsion system for an Autonomous Underwater Vehicle (AUV). The experiments carried out showed an optimal empirical value of the angle of attack for the turtle's hydrofoil that is compared with the theoretical value. The hydrofoil path used in the tests was a linear displac...Show More
The following paper introduces the work conducted to create a relative virtual mouse based on the interpretation of the head movements through a low cost camera. This virtual device is designed as a non-contact alternative for people with mobility impairments. First validation results show performance close to a digital joystick.Show More
The optimization of most pesticide and fertilizer applications is based on overall grove conditions. To this end, a ground laser scanner can be used to estimate the volume of the trees and then extrapolate their foliage surface to control the application dose. In this work we summarize the difficulties involved in this volume measurement. Tests with pear trees demonstrated that volume estimated wi...Show More
Floor cleaning is a typical mobile robot application. Most commercial cleaning mobile robots designed for domestic applications use random path-planning algorithms and very few sensors and the critical problem is to decide when the cleaning is already finished or the coverage completed. In this paper, we propose some methods to estimate the size of the cleaning area using only the information of e...Show More
The optimization of most pesticide and fertilizer applications is based on overall grove conditions. In this paper, we propose a measurement system to estimate the foliage surface of a tree crop. The system is based on a ground laser scanner that estimates the volume of the trees and then extrapolates their leaf area using simple and fast algorithms to allow true real-time operation. Tests with pe...Show More
In-vivo monitoring of myocardial impedance during ischemia is useful to study the pathophysiological changes occurring after coronary occlusion and to assess tissue damage. Ischemic myocardium impedance spectrum (1 kHz-1 MHz) was measured during 140 min of left anterior descending (LAD) coronary artery occlusion in the open chest chloralose anesthesized pig model. The impedance spectrum shows a do...Show More