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Publications

Publications by CRIIS

2019

PDMS Microlenses for Focusing Light in Narrow Band Imaging Diagnostics

Authors
Costa, AC; Pimenta, S; Ribeiro, JF; Silva, MF; Wolffenbuttel, RF; Dong, T; Yang, ZC; Correia, JH;

Publication
SENSORS

Abstract
Minimally invasive medical devices can greatly benefit from Narrow Band Imaging (NBI) diagnostic capabilities, as different wavelengths allow penetration of distinct layers of the gastrointestinal tract mucosa, improving diagnostic accuracy and targeting different pathologies. An important performance parameter is the light intensity at a given power consumption of the medical device. A method to increase the illumination intensity in the NBI diagnostic technique was developed and applied to minimally invasive medical devices (e.g., endoscopic capsules), without increasing the size and power consumption of such instruments. Endoscopic capsules are generally equipped with light-emitting diodes (LEDs) operating in the RGB (red, green, and blue) visible light spectrum. A polydimethylsiloxane (PDMS) mu-lens was designed for a maximum light intensity at the target area of interest when placed on top of the LEDs. The PDMS mu-lens was fabricated using a low-cost hanging droplet method. Experiments reveal an increased illumination intensity by a factor of 1.21 for both the blue and green LEDs and 1.18 for the red LED. These promising results can increase the resolution of NBI in endoscopic capsules, which can contribute to early gastric lesions diagnosis.

2019

Testing the vertical and cyber-physical integration of cognitive robots in manufacturing

Authors
Krueger, V; Rovida, F; Grossmann, B; Petrick, R; Crosby, M; Charzoule, A; Garcia, GM; Behnke, S; Toscano, C; Veiga, G;

Publication
ROBOTICS AND COMPUTER-INTEGRATED MANUFACTURING

Abstract
In recent years, cognitive robots have started to find their way into manufacturing halls. However, the full potential of these robots can only be exploited through (a) an integration of the robots with the Manufacturing Execution System (MES), (b) a new and simpler way of programming based on robot skills, automated task planning, and knowledge modeling, and (c) enabling the robots to function in a shared human/robot workspace with the ability to handle unexpected situations. The STAMINA project has built a robotic system that meets these objectives for an automotive kitting application, which has also been tested, validated, and demonstrated in a relevant environment (TRL6). This paper describes the STAMINA robot system and the evaluation of this system on a series of realistic kitting tasks. The structure of the system, evaluation methodology, and experimental results, are presented along with the insights and experiences gained from this work.

2019

SMErobotics <i>Smart Robots for Flexible Manufacturing</i>

Authors
Perzylo, A; Rickert, M; Kahl, B; Somani, N; Lehmann, C; Kuss, A; Profanter, S; Beck, AB; Haage, M; Hansen, MR; Nibe, MT; Roa, MA; Sörnmo, O; Robertz, SG; Thomas, U; Veiga, G; Topp, EA; Kessler, I; Danzer, M;

Publication
IEEE ROBOTICS & AUTOMATION MAGAZINE

Abstract
Current market demands require an increasingly agile production environment throughout many manufacturing branches. Traditional automation systems and industrial robots, on the other hand, are often too inflexible to provide an economically viable business case for companies with rapidly changing products. The introduction of cognitive abilities into robotic and automation systems is, therefore, a necessary step toward lean changeover and seamless human-robot collaboration.

2019

Application of the Open Scalable Production System to Machine Tending of Additive Manufacturing Operations by a Mobile Manipulator

Authors
Arrais, R; Veiga, G; Ribeiro, TT; Oliveira, D; Fernandes, RO; Conceição, AGS; Farias, PCMA;

Publication
EPIA (2)

Abstract
To support the full adoption of Cyber-Physical Systems (CPS) in modern production lines, effective solutions need to be extended to the technological domains of robotics and industrial automation. This paper addresses the description, application and results of usage of the Open Scalable Production System (OSPS) and its underlying skill-based robot programming ideology to support machine tending of additive manufacturing operations by a mobile manipulator.

2019

Innovation, Engineering and Entrepreneurship

Authors
Machado, J; Soares, F; Veiga, G;

Publication
Lecture Notes in Electrical Engineering

Abstract

2019

Preface

Authors
Machado, J; Soares, F; Veiga, G;

Publication
Lecture Notes in Electrical Engineering

Abstract

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