35,235 research outputs found
Multi-task Implementation for Image Reconstruction of an AER Communication
Address-Event-Representation (AER) is a communication protocol
for transferring spikes between bio-inspired chips. Such systems may consist of
a hierarchical structure with several chips that transmit spikes among them in
real time, while performing some processing. There exist several AER tools to
help in developing and testing AER based systems. These tools require the use
of a computer to allow the processing of the event information, reaching very
high bandwidth at the AER communication level. We propose to use an
embedded platform based on multi-task operating system to allow both, the
AER communication and the AER processing without a laptop or a computer.
We have connected and programmed a Gumstix computer to process Address-
Event information and measured the performance referred to the previous AER
tools solutions. In this paper, we present and study the performance of a new
philosophy of a frame-grabber AER tool based on a multi-task environment,
composed by the Intel XScale processor governed by an embedded GNU/Linux
system.Ministerio de Ciencia e Innovación TEC2006-11730-C03-0
Civil Space Technology Initiative: a First Step
This is the first published overview of OAST's focused program, the Civil Space Technology Initiative, (CSTI) which started in FY88. This publication describes the goals, technical approach, current status, and plans for CSTI. Periodic updates are planned
Fiber optic vibration transducer and analyzer Patent
Fiber optic transducers for monitoring and analysis of vibration in aerospace vehicles and onboard equipmen
Make Research Data Public? -- Not Always so Simple: A Dialogue for Statisticians and Science Editors
Putting data into the public domain is not the same thing as making those
data accessible for intelligent analysis. A distinguished group of editors and
experts who were already engaged in one way or another with the issues inherent
in making research data public came together with statisticians to initiate a
dialogue about policies and practicalities of requiring published research to
be accompanied by publication of the research data. This dialogue carried
beyond the broad issues of the advisability, the intellectual integrity, the
scientific exigencies to the relevance of these issues to statistics as a
discipline and the relevance of statistics, from inference to modeling to data
exploration, to science and social science policies on these issues.Comment: Published in at http://dx.doi.org/10.1214/10-STS320 the Statistical
Science (http://www.imstat.org/sts/) by the Institute of Mathematical
Statistics (http://www.imstat.org
GSFC Annual Scan Technology Review SpaceCube On-Board Processor Update
No abstract availabl
Low-fi skin vision: A case study in rapid prototyping a sensory substitution system
We describe the design process we have used to develop a minimal, twenty vibration motor Tactile Vision Sensory Substitution (TVSS) system which enables blind-folded subjects to successfully track and bat a rolling ball and thereby experience 'skin vision'. We have employed a low-fi rapid prototyping approach to build this system and argue that this methodology is particularly effective for building embedded interactive systems. We support this argument in two ways. First, by drawing on theoretical insights from robotics, a discipline that also has to deal with the challenge of building complex embedded systems that interact with their environments; second, by using the development of our TVSS as a case study: describing the series of prototypes that led to our successful design and highlighting what we learnt at each stage
2Fly with RPi - Evaluating Suitability of the Raspberry Pi3 B Single Board Computer for Experimental Glass Cockpit Embedded Applications
Computer based cockpits typically interact with the pilot through glass covered displays, and are called glass cockpits. Glass cockpits came first to military aircraft and then to commercial aircraft. Most recently, they have become available for general aviation aircraft. However, price remains a significant barrier for low cost aircraft. At the same time, the price of computers suitable for embedded applications has dropped precipitously. The Raspberry Pi 3B is an example of just such a computer, and can be purchased for 40. This paper seeks to evaluate the suitability of this single board computer for use in an experimental glass cockpit solution. The required functionality of such a solution is detailed – both in term of functionality and in terms of internal workings. The Raspberry Pi 3B computer is then evaluated for potential suitability to drive such a solution. This evaluation is based on mathematical analysis and on the experiences of the world’s hacking community – which has embraced the Raspberry Pi with open arms. Finally, the paper discuses programming techniques and software that the author has evaluated for creating such an experimental glass cockpit. It is the author’s hope that this solution can be implemented in the near future, and that 2Fly with RPi becomes a fully functional open source experimental aircraft situational awareness aid
2Fly with RPi - Evaluating the Raspberry Pi for Glass Cockpit Applications
Evaluating the capabilities of Raspberry Pi computers to be used in embedded glass cockpit applications for experimental aircraft. This includes details of what is required for these applications as well as how well the Raspberry Pi 3B can perform in this role
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