Learning on machine vision and image processing generally require high‐level knowledge on techniques, algorithms and programming skills. The educational process is frequently supported by formal lecture approaches assisted by object lessons or lab activities, and project‐based learning methodologies where students engage complex questions, challenges, and problems over a longer period of time. These educational approaches are not effective when applying to learners in robotics study programs or without a programming background where time and motivation are different. To address this concern, this paper presents an educational tool developed to teach the basic principles of machine vision and image processing through the design of short case studies. As the main contribution, the proposed tool allows to shorten the training time required by students—mainly beginners—without the skills in programming and deep understanding of math hidden behind each image operation. This lets to fit theoretical and practical works into short development times. To this end, we conducted an educational experience in robotics subjects with third year students of the computer science and industrial engineering degrees. As a result of this scenario, we statistically compared the teaching and learning issues, the user preferences about the tool and the student academic performance.
Road signalling systems help to improve attention and reduce speed while driving. However, most solutions are not commercially available, require expensive infrastructure, lack intelligence, or do not cover 100% of road users. To reduce this gap, this work presents a speed bump with intelligent light signalling that detects both pedestrians and vehicles on zebra crossings. The system is made up of low-cost prefabricated nodes with maturity level TRL8 that can be adapted to any type of road. As main novelty, this paper describes the materials and methods used to manufacture speed bumps with mixtures of resins, aggregates and reinforcing fibers injected cold on aluminium mould. As a result of the tests, a compromise between hardness, resistance and elasticity with IP68 rating was reached. This makes it possible to ensure the mechanical and optical operation of the system without the need for external power supplies and with an acceptable manufacturing cost.
Key Words: speed reducer, road safety, pedestrian crossing, intelligent system, mechanical characterization
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