Next Article in Journal
Current Source AC-Side Clamped Inverter for Leakage Current Reduction in Grid-Connected PV System
Previous Article in Journal
Different Antenna Designs for Non-Contact Vital Signs Measurement: A Review
Open AccessFeature PaperArticle

Open Vision System for Low-Cost Robotics Education

by Julio Vega †,‡ and José M. Cañas *,‡
Department of Telematic Systems and Computation, Rey Juan Carlos University, 28943 Madrid, Spain
*
Author to whom correspondence should be addressed.
Current address: Department of Telematic Systems and Computation, Rey Juan Carlos University, Camino del Molino S/N, 28934 Fuenlabrada, Madrid, Spain.
These authors contributed equally to this work.
Electronics 2019, 8(11), 1295; https://doi.org/10.3390/electronics8111295
Received: 11 October 2019 / Revised: 24 October 2019 / Accepted: 31 October 2019 / Published: 6 November 2019
(This article belongs to the Special Issue Advanced Embedded HW/SW Development)
Vision devices are currently one of the most widely used sensory elements in robots: commercial autonomous cars and vacuum cleaners, for example, have cameras. These vision devices can provide a great amount of information about robot surroundings. However, platforms for robotics education usually lack such devices, mainly because of the computing limitations of low cost processors. New educational platforms using Raspberry Pi are able to overcome this limitation while keeping costs low, but extracting information from the raw images is complex for children. This paper presents an open source vision system that simplifies the use of cameras in robotics education. It includes functions for the visual detection of complex objects and a visual memory that computes obstacle distances beyond the small field of view of regular cameras. The system was experimentally validated using the PiCam camera mounted on a pan unit on a Raspberry Pi-based robot. The performance and accuracy of the proposed vision system was studied and then used to solve two visual educational exercises: safe visual navigation with obstacle avoidance and person-following behavior. View Full-Text
Keywords: vision system; vision math; autonomous robot; science teaching; robotic tool; Python; Raspberry Pi; PiCamera vision system; vision math; autonomous robot; science teaching; robotic tool; Python; Raspberry Pi; PiCamera
Show Figures

Figure 1

MDPI and ACS Style

Vega, J.; Cañas, J.M. Open Vision System for Low-Cost Robotics Education. Electronics 2019, 8, 1295.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop