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- Systematic mapping literature review of mobile robotics competitionsPublication . BrancaliĆ£o, Laiany Suganuma; GonƧalves, JosĆ©; Conde, Miguel Ćngel; Costa, Paulo Gomes daThis paper presents a systematic mapping literature review about the mobile robotics competitions that took place over the last few decades in order to obtain an overview of the main objectives, target public, challenges, technologies used and final application area to show how these competitions have been contributing to education. In the review we found 673 papers from 5 different databases and at the end of the process, 75 papers were classified to extract all the relevant information using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) method. More than 50 mobile robotics competitions were found and it was possible to analyze most of the competitions in detail in order to answer the research questions, finding the main goals, target public, challenges, technologies and application area, mainly in education.
- Prototyping and calibration of a low-cost stroboscope: an educational experiment in mechatronicsPublication . BrancaliĆ£o, Laiany Suganuma; GonƧalves, JosĆ©; Lima, JosĆ©; Duarte, LuĆsIn the industry is very common the applying of resources and machines for implementation of the processes and creation of the products. For this reason, the measurement and control of such processes are essential to achieve better performance, efficiency, and consequently best quality, as well as, monitor the operation of the equipment, identify failures and ensure the security for the industry and the employees. The measure instruments are the set of tools used with the objective of obtaining data about the particular processes. In general, these devices measure features like pressure, temperature, velocity, humidity, vibration, and are widely applied in machines such as motors, heaters, reactors, refrigerators, air conditioners, compressors, ovens, and other equipment. Itās important to obtain the periodic calibration of these instruments so that the results obtained through them be reliable and accurate [1].
- Stochastic modeling of a time of flight sensor to be applied in a mobile robotics applicationPublication . BrancaliĆ£o, Laiany Suganuma; Conde, Miguel Ćngel; Costa, Paulo Gomes da; GonƧalves, JosĆ©In this paper it is presented the stochastic modeling of a time of flight sensor, to be applied in a mobile robotics application. The sensor was configured to provide data at a frequency of 30 Hz, obtaining a tradeoff between reactiveness and accuracy. The sensor data was acquired using a microcontroller development board, being the sensor moved with a manipulator, in order to assure repeatability and accuracy in the data acquisition process. The sensor was modeled having in mind the targets color, ranging from black to white for the working range, its variance, standard deviation, offset, means and errors measures were estimated.
- Educational robotics summer camp at IPBPublication . GonƧalves, JosĆ©; Lima, JosĆ©; Brito, Thadeu; BrancaliĆ£o, Laiany Suganuma; Camargo, Caio; Oliveira, Vitor; Conde, Miguel ĆngelRobotics in education has special relevance in current digital society where students should know how to deal with technology. In this paper, it is presented an educational experiment in the mobile robotics domain. The referred experiment was part of a summer camp, which took place at the Polytechnic Institute of BraganƧa Portugal, being its technological aspects related with mobile robotics. Other than the technological aspects, the students participated in many different cultural and social activities, having the opportunity to know the city of BraganƧa and also to know different persons, mainly students, professors, researchers and laboratory technicians. The applied approach in the summer camp was a challenge based learning methodology, being involved in the experiment 3 professors, 4 monitors, working with a group of 16 secondary school students. The described experiment was planned as an activity of the RoboSTEAM - Integrating STEAM and Computational Thinking development by using robotics and physical devices ERASMUS+ Project.
- Prototyping of a low-cost stroboscope to be applied in condition maintenance: an open hardware and software approachPublication . BrancaliĆ£o, Laiany Suganuma; Camargo, Caio; GonƧalves, JosĆ©; Lima, JosĆ©This paper aims to develop a low-cost stroboscope, which consists of an optical equipment capable of generating flashes of light at different frequencies, allowing to measure the rotation velocity of machines and contributing to maintenance processes in the industry. This device is based on the stroboscopic effect, a visual event that occurs when a continuous movement is presented by a series of samples, generated by flashes of light. When the frequency of the rotation movement is the same frequency of light pulses, the process will appear stationary. Based on the high cost of the commercial stroboscopes, it was developed a stroboscope prototype based on the Arduino platform, LED technology and 3D printing with an open hardware and software. The final prototype went through calibration and validation processes, achieving a performance very similar to a commercial instrument.
- EmĆdio Garcia school pilot description: a robosteam Erasmus+ project activity based on a challenge based learning approachPublication . Camargo, Caio; BrancaliĆ£o, Laiany Suganuma; GonƧalves, JosĆ©; Lima, JosĆ©; Ramos, Maria; Fernandes, Luisa; Trovisco, Manuel; Conde, Miguel ĆngelIn this paper it is described a Pilot that took place at EmĆdio Garcia School from BraganƧa, Portugal. The presented Pilot is based on a Challenge based Learning Approach, being an activity of the RoboSTEAM - Integrating STEAM and Computational Thinking development by using robotics and physical devices - ERASMUS+ Project. In the presented educational experiment it were used physical devices, being chosen the mBot robot, programmed using Scratch. The presented challenges had as research question a global problem that was Wildfires. Student had to propose and to develop solutions based on the use of robots to prevent and fight wildfires. The students that participated in the experiment were secondary school students, from Spain and Portugal, with their background in technology and arts respectively. Previously to the experiment the involved students filled a STEM semantic Survey and during the experiments their performance was evaluated.
- Prototyping and control of an automatic ceramic tableware finishing devicePublication . Alvarez, Mariano Jose; BrancaliĆ£o, Laiany Suganuma; Gomes, Diogo; Pinto, VĆtor H.; Carneiro, Jorge; Santos, JosĆ© M.R.C.A.; Coelho, JoĆ£o Paulo; GonƧalves, JosĆ©This paper presents a first prototype of an automated system that will be applied in stoneware tableware ceramics finishing, being developed in the scope of STC 4.0 HP project. The main objective of this prototype is to test different alternatives to obtain a precise finish on ceramic pieces produced by GRESTEL - PRODUTOS CERĆMICOS S.A, improving the production of irregular pieces that until now are finished using manual labor. This is why the implementation of a closed-loop control of the rotation speed of a finishing sponge and its applied force control is proposed.
- Prototyping and Control of an Educational Manipulator RobotPublication . Coelho, JoĆ£o Paulo; BrancaliĆ£o, Laiany Suganuma; Alvarez, Mariano JosĆ©; Costa, Paulo Gomes da; GonƧalves, JosĆ©This article presents the prototyping of an educational manipulator robot, based on the āEEZYbotARM Mk2ā robot, tailored for first-year masterās students in the field of robotics. The project encompasses the assembly of the robot arm, computation of both forward and inverse kinematics, and analysis of two path-planning movement algorithms. These features are consolidated into an Arduino library to streamline the process for students to generate instructions for the robot. The āEEZYbotARM Mk2ā features a three-degree-of-freedom revolute arm with a gripper that remains parallel to its base at all times, enhancing its suitability for educational applications such as pick-and-place tasks. The article provides detailed descriptions of the materials and methods employed, along with proposed challenges for student engagement.
- Automated ceramics tableware finishing: non-circular geometries case studyPublication . Alvarez, Mariano JosĆ©; BrancaliĆ£o, Laiany Suganuma; Carneiro, Jorge; Costa, Paulo Gomes da; Coelho, JoĆ£o Paulo; GonƧalves, JosĆ©This paper is devoted to present the most recent results regarding the ongoing work carried out in the scope of the STC 4.0 HP project, which aims to automate the finishing process of ceramic tableware at the GRESTEL S.A. industry, focusing on non-circular shaped plates. A collaborative robot is in charge of handling the tableware and making it go around its entire perimeter through a sponge, to perform the finishing. An array, with the distances from the center to the different points of the plate, is applied as data to trace the path that the robot must follow. The final goal of this prototype is to obtain an even finish while maintaining a constant force along the entire perimeter of the ceramic tableware. After carrying out a seriesof tests, it was possible to conclude that the current approach was able to manipulate 3D-printed tableware made for testing and travel its perimeter to carry out the finishing.
- Programming Mobile Robots in an Educational Context: a Hardware-in-the-loop ApproachPublication . BrancaliĆ£o, Laiany Suganuma; Alvarez, Mariano JosĆ©; Coelho, JoĆ£o Paulo; Conde, Miguel Ćngel; Costa, Paulo Gomes da; GonƧalves, JosĆ©In this paper it is presented a Hardware-in-theloop (HIL) mobile robot programming approach, to be applied in a robotics educational context. The motivation to apply this approach is the fact that students can program the robots without access to the robot hardware, but still maintain some important closed loop control critical features, such as a realistic lag time and the possibility for a larger number of students to program at the same time. Therefore, the developed software is applied to the real hardware without any change. The HIL approach was applied to provide a simulation close to reality, once the processing occurs in the real robot processor and the actuation and sensorization inside the simulation, adding to the advantage to test the firmware avoiding damage in the physical robot.