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Real-time tracking system for a moored oil tanker: a kalman filter approach

Sensor and actuator stochastic modeling of the Lego mindstorms NXT educational kit

This paper describes the sensor and actuator stochastic modeling of Lego Mindstorms NXT educational kit. It will be also presented the experimental setups applied to obtain each sensor and actuator parameters. The introduction of an industrial robot in some of the experimental setups allowed to increase the speed, repeatability and to reduce errors in the process of sensor data collecting.

Fostering advances in mechatronics and robotics resorting to simulation

This paper presents the modelling and simulation of a wheeled mobile robot designed to operate in structured environments and the development of robot software based on its simulation. The mobile robot was simulated resorting to the SimTwo, a custom made simulator developed by the authors with the purpose to test and produce control software for industrial, humanoid and wheeled robots. The presented example is ...

Sistema para a Medição dos Movimentos de um Navio Amarrado no Posto 'A' do Port...

The behavior of moored ships is an important factor in the security and working conditions of the Oil Terminal in the Port of Leixões. Reducing the amplitude of the moored ship motions is crucial to increase the on and off-loading operations efficiency as well as to reduce security and environmental risks. This paper presents a stereoscopic vision system developed to measure the motion of rigid bodies in real-t...

Sistema para a Medição dos Movimentos de um Navio Amarrado no Posto "A" do Port...

Code migration from a realistic simulator to a real wheeled mobile robot

This paper describes the code migration from a realistic simulator to a real wheeled mobile robot. The robot software consists in the localization and navigation of an omnidirectional robot in a structured environment. The localization estimate is achieved by fusing odometry and infra-red distance sensors data, applying an extended Kalman filter.

Code migration from a realistic simulator to a real robot

This paper describes the code migration from a realistic simulator to a real wheeled mobile robot. The robot software consists in the localization and navigation of an omnidirectional robot in a structured environment. The localization estimate is achieved by fusing odometry and infra-red distance sensors data, applying an extended Kalman filter.

Towards a more accurate model for an infrared distance sensor

This paper presents the stochastic modelling of an infrared distance sensor. The modelled features of the sensor were its characteristic, the mandatory minimal dis-tance, the sensor noise and the influence of the sensor position while facing an ob-stacle. In order to model the distance sensor it was necessary to collect a consider-able amount of data, for this task it was used an industrial robot to position th...

Robust and real-time motion capture of rigid bodies based on stereoscopic vision

This paper presents a stereoscopic vision system developed to measure the motion of rigid bodies in real-time along its six degrees of freedom (6DOF). The idea was to use it in the measurement of the motions of a full-scale oil tanker moored at the oil terminal of the Port of Leixões, Portugal, in the scope of an R&D project. Prior to its installation on site the system was tested and validated in laboratory. F...