DIS Testbed Research And Development: Work Plan Report #1 CDRL A005

Report on a project to develop distributed interactive simulation capabilities by creating a testbed for implementing, testing, and evaluating DIS

CATSS: Final Report

Report on research project oriented to transportation in general and driving simulation in particular and investigating the design and possible improvements to the design of the UCF driving simulator, including hardware and software

Simulator Networking Handbook: Distributed Interactive Simulation Testbed

Report is an attempt to collect and organize a large body of knowledge regarding the design and development of simulation networks, particularly distributed interactive simulation

Graphics Performance Benchmarks: Summary Report

Report on study of seven different benchmark software systems viewing the parameters and configurations of graphics systems

Validation of a Transient Simulation Program (TRNSYS)

Although a Transient Simulation Program (TRNSYS) has become a widely used model for simulating a solar energy system, there has not been extensive work done in validating this model with actual data. The approach used to validate this model consisted of a modular buildup of components with validation for each module. Extreme care was taken in choosing the necessary parameters to model each component. Where parameters were not given, they were either derived or reasonable values were selected based upon general conditions prevailing in Central Florida or conditions which are generally true for certain solar hot water systems. The intent of this approach was to avoid forcing the model to fit experimental data. Such forcing can cause present results to correlate favorably, but gives no assurances for model performance in future simulations which may be made for varying conditions or completely different systems. TRNSYS compared favorably with experimental data. The average error for an entire 8 hour simulation with 15 minute intervals was only 3.39 percent for the entire tank and collector combination. The model\u27s major deviations were in the start-up collector outlet temperature and rapid changing in actual hot water demand which the model could not match primarily in amplitude and not phase

Techniques For Assessing And Improving Performance In Navigation And Wayfinding Using Mobile Augmented Reality

Augmented reality is a field of technology in which the real world is overlaid with additional information from a computer generated display. Enhancements to augmented reality technology presently support limited mobility which is expected to increase in the future to provide much greater real world functionality. This work reports on a set of experiments that investigate performance in search and rescue navigating tasks using augmented reality. Augmentation consisted of a spatially and temporally registered map of a maze that was overlaid onto a real world maze. Participants were required to traverse the maze, answer spatially oriented questions in the maze, acquire a target object, and exit. Pre and post hoc questionnaires were administered. Time and accuracy data from one hundred twenty participants were collected across six treatments. The between subject treatments, which had an equal number of male and female participants, were a control condition with only a compass, a control condition with a paper map available prior to maze traversal and four experimental conditions consisting of combinations of egocentric and exocentric maps, and a continuously on and on demand map display. Data collected from each participant consisted of time to traverse the maze, percent of the maze covered, estimations of euclidian distance and direction, estimations of cardinal direction, and spatial recall. Data was also collected via pre and post hoc questionnaires. Results indicate that best performance with respect to time was in the control condition with a map. The small size of the maze could have facilitated this result through route memorization. Augmented reality can offer enhancement to performance as navigational tasks become more complex and saturate working memory. Augmented reality showed best performance in accuracy by facilitating participants\u27 coverage of the maze. Exocentric maps generally exhibited better performance than egocentric maps. On demand displays also generally resulted in better performance than continuously on displays. Gender differences also were evident with males exhibiting better performance than females. Participants reporting an initial tendency to not rotate maps exhibited better performance than those reporting a tendency to rotate maps. Enhancements being made to augmented reality and related technologies will result in more features, improved form factor for users, and improved performance in the future. Guidelines provided in this work seek to ensure augmented reality systems continue to progress in enhancing performanc

Networks Extend Simulation\u27S Reach

Simulator networking enhances traditional methods for training, testing, product development, and analysis. Equally important, it provides potential cost savings that are critical to remaining economically competitive. Simulation networks extend the aerospace development environment in several ways. First, they foster the creation of standard environments. Second, they enhance rapid prototyping and concurrent engineering, because they can be used in a stand-alone mode or integrated into a complete environment. Third, because simulator networks can be extended geographically, simulation assets can be distributed and linked together when the need arises. Fourth, testing can occur in environments created by developers or customers, and it can proceed without concern for safety, environmental effects, or security

Realidad Virtual, Aumentada y Mixta, una visión general y programas de actualidad de la Universidad Central de la Florida

Fundamentalmente, la realidad virtual consiste en un ambiente artificial creado enteramente por computadora. La realidad aumentada añade a una escena del mundo real información generada tecnológicamente. La realidad mixta, usa algunos apoyos artificiales para enriquecer un ambiente de realidad virtual o aumentada. En todos los casos, el ambiente que se genera por la computadora es registrado espacialmente para un usuario y responde a sus acciones en tiempo real. Por ejemplo, si el usuario gira la cabeza, el sistema responde con un cambio apropiado en la escena. La realidad aumentada puede ser dividida en tres clases: aumento de lo que no es parte del mundo real (por ejemplo: proyectar un objeto por arriba de la cabeza); el aumento fusionado con el mundo real (por ejemplo: incluir o eliminar contenido que no es distinguible por el usuario, como la inclusión de muebles en una habitación real), y el aumento de la vida real (por ejemplo: utilizando gafas de visión nocturna). La Tabla 1 proporciona una vista gráfica continua sobre las divisiones de la realidad aumentada

History Of Networked Simulations

Networks of simulators are a rapidly advancing technology and provide new utility for real time simulators. Simulator networking will enhance the use of simulation for training, product development, test, analysis, and creation of virtual environments. The current terminology for networks of simulators is called Distributed Interactive Simulation or DIS. DIS consists of descriptions of the protocols, the underlying network, and the architecture for connecting individual simulators. It also supports limited connectivity between real time simulators, live equipment, and discrete event simulations. However, DIS is only the current manifestation of simulator networking. One can look to processes pushing advances in simulator design, computer technology, communications technology, and innovative requirements development as key factors influencing simulator networking. These processes have been on-going for nearly thirty years. It is important to reflect on these development efforts to chart the future course for networked simulators