03471 Abstracts Collection -- Design of Systems with Predictable Behaviour

On 16.11.-19.11.2003, the Perspectives Workshop 03471 "Design of Systems with Predictable Behaviour" was held in the International Conference and Research Center (IBFI), Schloss Dagstuhl. During the workshop, several participants presented their current research, and ongoing work and open problems were discussed. Abstracts of the presentations given during the seminar as well a digest of seminar results and ideas are put together in this paper. The first section describes the seminar topics and goals in general. Links to extended abstracts or full papers are provided, if available

Real-Time Operating Systems and Programming Languages for Embedded Systems

In this chapter, we present the different alternatives that are available today for the development of real-time embedded systems. In particular, we will focus on the programming languages use like C++, Java and Ada and the operating systems like Linux-RT, FreeRTOS, TinyOS, etc. In particular we will analyze the actual state of the art for developing embedded systems under the WORA paradigm with standard Java [1], its Real-Time Specification and with the use of Real-Time Core Extensions and pico Java based CPUs [5]. We expect the reader to have a clear view of the opportunities present at the moment of starting a design with its pros and cons so it can choose the best one to fit its case.Fil: Orozco, Javier Dario. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Investigaciones en Ingeniería Eléctrica "Alfredo Desages". Universidad Nacional del Sur. Departamento de Ingeniería Eléctrica y de Computadoras. Instituto de Investigaciones en Ingeniería Eléctrica "Alfredo Desages"; Argentina. Universidad Nacional del Sur. Departamento de Ingeniería Eléctrica y de Computadoras. Laboratorio de Sistemas Digitales; ArgentinaFil: Santos, Rodrigo Martin. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Investigaciones en Ingeniería Eléctrica "Alfredo Desages". Universidad Nacional del Sur. Departamento de Ingeniería Eléctrica y de Computadoras. Instituto de Investigaciones en Ingeniería Eléctrica "Alfredo Desages"; Argentina. Universidad Nacional del Sur. Departamento de Ingeniería Eléctrica y de Computadoras. Laboratorio de Sistemas Digitales; Argentin

Data collection and management of a mobile sensor platform

Thesis: M. Eng., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2013.Cataloged from PDF version of thesis.Includes bibliographical references (page 53).This thesis explores the development of a platform to better collect and manage data from multiple senor inputs mounted on a car sensor platform. Specifically, focusing on the collection and synchronization of multiple forms of data across a single mobile sensor system. The project will be implemented for three versions of a light-sensing platform, and will cover the different methods of data collection and different types of sensor devices implemented in each version. It will also cover the different technical challenges faced when collecting and managing data across multiple mobile sensors.by Abraham M. Rosenfeld.M. Eng

Teleoperation and Autonomous Navigation of a Mobile Robot Using Wireless Vision Feedback

At the department of Automatic Control at Lund Institute of Technology a mobile robot has to be assembled. The capabilities of the vehicle comprises a possibility to control it via internet with the help of a Java-applet as well as a function that realizes an autonomous navigation through a predefined environment. The first part of this work deals with the implementation of the remote control function. This involes setting up the hardware components and the realisation of different interfaces between these components. Another mode in which the robot can be driven ensures autonomous navigation in a known environment. Since the environment the robot is moving in is a corridor, it is a crucial part to guarantee the straight driving of the robot. Also, a simple map and the recognition of landmarks are necessary to orientate in the robots surroundings. In this context, pattern recognition is done by calculating the correlation coefficient

A General-Purpose Graphics Processing Unit (GPGPU)-Accelerated Robotic Controller Using a Low Power Mobile Platform

Robotic controllers have to execute various complex independent tasks repeatedly. Massive processing power is required by the motion controllers to compute the solution of these computationally intensive algorithms. General-purpose graphics processing unit (GPGPU)-enabled mobile phones can be leveraged for acceleration of these motion controllers. Embedded GPUs can replace several dedicated computing boards by a single powerful and less power-consuming GPU. In this paper, the inverse kinematic algorithm based numeric controllers is proposed and realized using the GPGPU of a handheld mobile device. This work is the extension of a desktop GPU-accelerated robotic controller presented at DAS’16 where the comparative analysis of different sequential and concurrent controllers is discussed. First of all, the inverse kinematic algorithm is sequentially realized using Arduino-Due microcontroller and the field-programmable gate array (FPGA) is used for its parallel implementation. Execution speeds of these controllers are compared with two different GPGPU architectures (Nvidia Quadro K2200 and Nvidia Shield K1 Tablet), programmed with Compute Unified Device Architecture (CUDA) computing language. Experimental data shows that the proposed mobile platform-based scheme outperform s the FPGA by 5 and boasts a 100 speedup over the Arduino-based sequential implementation

Explaining multi-threaded task scheduling using tangible user interfaces in higher educational contexts

Endorsing the advantages of computer-based interaction within the educational domain, this study analysis the potential for tangible interactive technology to mitigate the challenges faced by higher educational institutes in explaining abstracted technical concepts. Implemented within a novel within the educational domain, this paper evaluates the efficacy of adopting a tangible user interface (TUI) to aid in the conceptual understanding of multi-threaded task scheduling and programming by undergraduate IT students. Making use of physical object representations, a description is provided for the distinctive development of a collaborative system that allows students to interact with and visualize the scheduling of multiple software threads onto a computer processes. The paper quantitatively studies the usefulness of the proposed TUI system with respect to traditional lectures by deploying the system within a university computing degree. Evaluation analysis of the obtained results highlight a significant improvement in the students' abilities to grasp the abstract and complex notions of multi-threading, thus validating the potential of the proposed study

Robot construction kit

Thesis (M.Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1999.Vita.Includes bibliographical references (p. 74-76).by Edwin W. Foo.M.Eng