6 documents found, page 1 of 1
Sensing Structure based on Surface Plasmonic Resonance in Single Mode Optical F...
Coelho, L.; Almeida, J. M.; Santos, J. L.; Ferreira, R. A. S.; Andre, P. S.; Viegas, D.Many optical systems based on Surface Plasmon Resonance (SPR) have been developed for work as refractometers, chemical sensors or even for measure the thickness of metal and dielectric thin films. These kinds of systems are usually large, expensive and cannot be used for remote sensing. Optical fiber sensors based on SPR has been widely studied for the last 20 years with several configurations mostly using mult...
A Real Time Vision System for Autonomous Systems: Characterization during a Mid...
Silva, H.; Almeida, J. M.; Lima, L.; Martins, A.; Silva, E. P.This paper propose a real-time vision framework for mobile robotics and describes the current implementation. The pipeline structure further reduces latency and allows a paralleled hardware implementation. A dedicated hardware vision sensor was developed in order to take advantage of the proposed architecture. The real-time characteristics and hardware partial implementation, coupled with low energy consumption...
Swordfish: an Autonomous Surface Vehicle for Network Centric Operations
Ferreira, H.; Martins, R.; Marques, E.; Pinto, J.; Martins, A. O.; Almeida, J. M.; Sousa, J. B.; Silva, E. P.The design and development of the swordfish autonomous surface vehicle (ASV) system is discussed. Swordfish is an ocean capable 4.5 m long catamaran designed for network centric operations (with ocean and air going vehicles and human operators). In the basic configuration, Swordfish is both a survey vehicle and a communications node with gateways for broadband, Wi-Fi and GSM transports and underwater acoustic m...
Marine Operations with the SWORDFISH Autonomous Surface Vehicle
Ferreira, Hugo; Martins, R.; Marques, E.; Pinto, J.; Martins, A.; Almeida, J. M.; Sousa, J. B.; Silva, E. P.This paper describes the design and development of the Swordfish Autonomous Surface Vehicle (ASV) system. The work focuses the sensors, actuators, communications and C4I of an unmanned vehicle for marine operations. SWORDFISH is an autonomous surface vehicle used as the central communications link between air, undersea, and terrestrial robotic vehicles of a network centric operation. It is used as a test bed pl...
ROAZ Autonomous Surface Vehicle Design and Implementation
Ferreira, Hugo; Martins, A.; Dias, A.; Almeida, C.; Almeida, J. M.; Silva, E. P.The design of an Autonomous Surface Vehicle for operation in river and estuarine scenarios is presented. Multiple operations with autonomous underwater vehicles and support to AUV missions are one of the main design goals in the ROAZ system. The mechanical design issues are discussed. Hardware, software and implementation status are described along with the control and navigation system architecture. Some preli...
ISePorto Robotic Soccer Team: A New Player Generation
Cerqueira, V.; Dias, André; Matos, Nuno; Almeida, J. M.; Martins, A.; Silva, E. P.This paper describes the recent modifications in ISePorto MSL robotic football team and future improvements concerning the development and evolution of the team. The robot was substantially redesigned in order to achieve high reliability, allow better control and coordination capabilities and substantial increase in perception. New mechanical and hardware redesign is presented. Motion control subsystems, new vi...