Antonio Valente

Antonio Valente
Universidade de Trás-os-Montes e Alto Douro | utad · Departamento de Engenharias

Professor, PhD

About

130
Publications
75,032
Reads
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1,023
Citations
Introduction
Antonio Valente graduated in Electrical Engineering from University of Trás-os-Montes and Alto Douro (UTAD), Portugal in 1994, and in 1999 a MsC degree in Industrial Electronics, Univ. Minho, Portugal. PhD degree at UTAD, in 2003, working in the field of micro-systems for agriculture. Presently, he is an Associate Professor with Habilitation at Engineering Department, UTAD. He is a senior researcher at Institute for Systems and Computer Engineering - Technology and Science (INESC TEC).
Additional affiliations
June 2012 - present
November 1994 - present
September 1994 - present
Universidade de Trás-os-Montes e Alto Douro
Position
  • Professor (Associate)
Education
September 1999 - June 2004
Universidade de Trás-os-Montes e Alto Douro
Field of study
  • Electrical and Computer Engineering
September 1996 - March 1999
University of Minho
Field of study
  • Industrial Electronics
September 1987 - September 1994
Universidade de Trás-os-Montes e Alto Douro
Field of study
  • Electrical and Computer Engineering

Publications

Publications (130)
Article
Purpose The motivation for robotics research in the agricultural field has sparked in consequence of the increasing world population and decreasing agricultural labor availability. This paper aims to analyze the state of the art of pruning and harvesting manipulators used in agriculture. Design/methodology/approach A research was performed on pap...
Article
Full-text available
The Internet of Things asserts that several applications, such as smart cities or intelligent agriculture, can be based on various embedded systems programmed to do different tasks, by transferring data over a network from sensors to a server, where the information is stored and treated, supporting the decision-making process. In this context, LoRa...
Conference Paper
The European Project Semester (EPS) is a multicultural and multidisciplinary project-based learning semester offered by a network of providers, including the Instituto Superior de Engenharia do Porto (ISEP). In the spring of 2020/2021, five EPS@ISEP students from different areas of studies and countries — Portugal, Romania, Poland and France — team...
Chapter
Computational thinking is the thinking process involved in formulating problems to admit a computational solution. This article describes a study in which the code.org platform was used to develop computational thinking with Elementary school students. After proper introduction and contextualization, we describe the 198 students from 4th grade invo...
Article
Full-text available
Software for robotic systems is becoming progressively more complex despite the existence of established software ecosystems like ROS, as the problems we delegate to robots become more and more challenging. Ensuring that the software works as intended is a crucial (but not trivial) task, although proper quality assurance processes are rarely seen i...
Article
Full-text available
The automation of agricultural processes is expected to positively impact the environment by reducing waste and increasing food security, maximising resource use. Precision spraying is a method used to reduce the losses during pesticides application, reducing chemical residues in the soil. In this work, we developed a smart and novel electric spray...
Chapter
Worldwide, forests have been devastated by fires in recent years. Whe- ther by human intervention or for other reasons, the history of burned areas is increasing year after year, degrading fauna and flora. For this reason, it is vital to detect an early ignition so that firefighters can act quickly, reducing the impacts caused by forest fires. The...
Chapter
Through technological advents from Industry 4.0 and the Internet of Things, as well as new Big Data solutions, predictive maintenance begins to play a strategic role in the increasing operational performance of any industrial facility. Equipment failures can be very costly and have catastrophic consequences. In its basic concept, Predictive mainten...
Chapter
Full-text available
Agricultural robotics is nowadays a complex, challenging, and relevant research topic for the sustainability of our society. Some agricultural environments present harsh conditions to robotics operability. In the case of steep-slope vineyards, there are several robotic challenges: terrain irregularities, characteristics of illumination, and inaccur...
Chapter
Task Scheduling assumes an integral topic in the efficiency of multiple mobile robots systems and is a key part in most modern manufacturing systems. Advances in the field of combinatorial optimisation have allowed the implementation of algorithms capable of solving the different variants of the vehicle routing problem in relation to different obje...
Article
The goal for a virtual reality (VR) training system is to enable trainees to acquire all the knowledge they need to perform effectively in a real environment. Such a system should provide an experience so authentic that no further real-world training is necessary, meaning that it is sufficient to train in VR. We evaluate the impact of a haptic ther...
Article
Full-text available
Robotics will significantly impact large sectors of the economy with relatively low productivity, such as Agri-Food production. Deploying agricultural robots on the farm is still a challenging task. When it comes to localising the robot, there is a need for a preliminary map, which is obtained from a first robot visit to the farm. Mapping is a semi...
Conference Paper
The physiotherapeutic process is widely discussed and of fundamental importance for the recovery of patients who suffer from any injury or adverse muscle condition. For best results, it is of primary importance that the patient maintains a pace of treatment and remains engaged in the activities required by the Physiotherapist. In this context, an a...
Chapter
This project is being developed to access elder dependent people, inspired by a geriatric care management@home. According to the project’s main assessment, three stages have been completed and now, in the fourth stage, we are implementing a bio-network with several sensors that assists the caregiver in applying the therapeutic plan. At this point,...
Chapter
The increasing interest in connecting small sensors to the internet has led to the development of operating systems able to support all network, graphical and server functionalities over diverse embedded hardware. Globaltronic, a company based in Portugal, has developed an embedded computer called WiiPiiDo, powered by an ARM SoC (System on a Chip),...
Article
Full-text available
Intelligent agriculture in general, but especially when agricultural fields are very heterogeneous, requires a large number of sensors in order to obtain an effective control and thus increase productivity. This need becomes more evident in vineyards on the farms of the demarcated Douro region due to the specificities of the territory and the viney...
Article
Full-text available
Wireless Sensor Networks (WSN) can be used to acquire environmental variables useful for decision-making, such as agriculture and forestry. Installing a WSN on the forest will allow the acquisition of ecological variables of high importance on risk analysis and fire detection. The presented paper addresses two types of WSN developed modules that ca...
Chapter
This paper presents the construction of an autonomous robot to participating in the autonomous driving competition of the National Festival of Robotics in Portugal, which relies on an open platform requiring basic knowledge of robotics, like mechanics, control, computer vision and energy management. The projet is an excellent way for teaching robot...
Conference Paper
Full-text available
Forests have been harassed by fire in recent years. Whether by human action or for other reasons, the burned area has increased harming fauna and flora. It is fundamental to detect an ignition early in order to firefighters fight the fire minimizing the fire impacts. The proposed Forest Monitoring System aims to improve the nature monitoring and to...
Conference Paper
Full-text available
This article reports a pedagogical experience developed within the scope of a Ph.D. program in Electrical and Computer Engineering with application to Education. Starting with a contextualization on the evolution of computers and Computational Thinking, the article describes the platform used in this study - code.org -, highlighting the strengths t...
Article
The objective of this work is study, implementation and evaluation of compression techniques used in bioelectrical signals, applied to electroencephalography. For that, the fundamental concepts of Fast Walsh Hadamard Transform (FWHT), the Discrete Cosine Transform (DCT) and the Discrete Wavelet Transform (DWT), in essence, the mathematical models w...
Preprint
Full-text available
There are many systems for indoor navigation specially built for visually impaired people but only some has good accuracy for navigation. While there are solutions like global navigation satellite systems for the localization outdoors, problems arise in urban scenarios and indoors due to insufficient or failed signal reception. To build a support s...
Article
The challenge of noise attenuation in images has led to extensive research on improved noise reduction techniques, preserving important image characteristics, improving not only visual perception, but also enabling the use for special purposes, such as in medicine to increase clarity of medical images. In this paper, a technique for noise attenuati...
Conference Paper
Robotics competitions are a way to challenge researchers , roboticists and enthusiastic to address robot applications. One of the well-known international competition is the Micromouse where the fastest mobile robot to solve a maze is the winner. There are several topics addressed in this competition such as robot prototyping, control, electronics,...
Chapter
Robotics competitions are increasing in complexity and number challenging the researchers, roboticists and enthusiastic to address the robot applications. One of the well-known competition is the micromouse where the fastest mobile robot to solve a maze is the winner. There are several topics addressed in this competition such as robot prototyping,...
Chapter
This paper compares optimal path planning algorithms based on a Genetic Algorithm and a Particle Swarm Optimization algorithm applied to multiple bioinspired robots in a 2D environment simulation. The planning objectives are related to the harvesting of an apple plantation in which three swarm of butterflies were run, counting the fruits on the gro...
Article
Full-text available
In the study of effectiveness and efficiency of an athlete’s performance, intelligent systems can be applied on qualitative approaches and their performance metrics provide useful information on not just the quality of the data, but also reveal issues about the observational criteria and data collection context itself. 2000 executions of two simila...
Conference Paper
Full-text available
This paper describes the implementation of a simulated bioinspired 3D model, which was moved through segmented gestures using fractional calculation segmentation methods. It was observed that for the increase in the detection of such gestures from this segmentation an improvement in the recognition and standardization of gesture images using the FO...
Conference Paper
Over the years robotics has made great progress. Nowadays, robots begin to be part of the life of any person, designated social robotic. Humanoid robots are fascinating and have several advantages, such as they can work in places where there is a risk of contamination, risk of health, danger of life, places that are difficult to access. They also a...
Article
Full-text available
This study presents a technique that uses an interactive virtual environment for the rehabilitation treatment of patients with mechanical strabismus and/or amblyopia who have lost eye movement. The relevant part of this treatment is the act of forcing the two eyes to cooperate with each other by increasing the level of adaptation of the brain and a...
Conference Paper
Kinematic analysis of human movement is very important in several areas, such as in sports (e.g., for athletic performance analysis), health (e.g., rehabilitation of people with motor disabilities) and others. The study of the kinematics of the human body involves several methods that resort to the analysis of several parameters that come from the...
Conference Paper
Full-text available
The present study aims to test the efficacy of two transforms in the compression of electrocardiograms, being them fast Walsh Hadamard Transform and Discrete Cosine Transform. These transforms are submitted to tests to know if the signal obtained after the compression has the best quality,taking into consideration the size of the compression thus,...
Conference Paper
Full-text available
There is a need for a multi-functional probe for small-scale measurements of different soil properties measured within identical soil volumes. Dual Probe Heat Pulse (DPHP) sensors are an economical solution for this since they measure simultaneously temperature, volumetric water content, and soil thermal properties: diffusivity and volumetric heat...
Article
Full-text available
In this paper we considered the problem of mobile multirobot manipulation, with information extracted from a fixed position camera for command inputs that is analyzed by a real time image recognition algorithm. We used 1320 images for training 11 gesture commands, for decision making we used deep learning through a CNN. The proposed method is evalu...
Poster
Full-text available
e article refers to a new model of genetic algorithm. e method used has finality of optimize the filtering of artifacts in DICOM images in two-steps. e first step is constituted by filterings with BM4D, 3D median filter and ellipsoid filter. e second step is formed by the application of operators of simple mutations in the previously recovered imag...
Conference Paper
Full-text available
The article refers to a new model of genetic algorithm. The method used has finality of optimize the filtering of artifacts in DICOM images in two-steps.The first step is constituted by filterings with BM4D, 3d median filter and ellipsoid filter. The second step is formed by the application of operators of simple mutations in the previously recover...
Chapter
This chapter is dedicated to Micro-electro-mechanical Systems (MEMS) devices developed for primary use in agriculture. We can see MEMS devices in ink jet printers (printer heads), automobiles (e.g., airbag accelerometer), projectors (digital micromirror device for DLP projectors), mobile devices (e.g., gyroscopes for smartphones, tablets, etc.), he...
Conference Paper
The ability of the Arduino platform to enhance student interest and performance in science, technology, engineering, and mathematics (STEM) courses, while fostering skills that are important prerequisites for future IT careers, has been proven more than once in the past years. But can the future be crafted without the past? We believe that many pas...
Conference Paper
Full-text available
The project addresses the urgent need to enhance student interest and performance in science, technology, engineering, and mathematics (STEM) courses, while fostering skills that are important prerequisites for IT careers. In the near term, the project is helping Portuguese schools and students meet state wide academic standards. Over the long term...
Conference Paper
Full-text available
To assist the irrigation process is necessary to ensure the amount of water that we supply to the plants is on the correct amount. To achieve this we need to use reliable measuring systems for water amount but also the amount of chemical agents, like fertilizers, that contribute to the grow of the plants and also to the pollution of rivers and wate...
Article
There is a need to attract students to science and engineering courses. Robotic contests are one of the most promising ways to attract students to the field of robotics and thereby to science and technology. Micromouse contest is one of promising contests where a small autonomous robot has to navigate its way through an unknown 16x16 cells maze. Si...
Conference Paper
Background: The metabolic disorder which entails the absent or reduced control of blood glucose in the body by means of insulin dependence (Type 1) or intolerance (Type 2) affected more than 382 million people in 2013. Although only 13% of patients die from diabetes, there are a significant number of costly, dangerous health complications that appe...