Aplicaciones de la Realidad Aumentada

Este proyecto consiste en mostrar que es la Realidad Aumentada, como funciona y hacer unas demostraciones funcionales en base a los conocimientos adquiridos. Al comienzo se realizará una explicación a cerca de la Realidad Aumentada, donde comenzó, sus principales características y en que se basan los diferentes modelos. Luego, se hablará sobre FLARToolKit, una librería que permite crear Realidad Aumentada para Adobe Flash, indicando la manera en que funciona internamente y sus diferentes fases. En el siguiente capítulo, se explicará la metodología que se seguirá en las demostraciones del Capítulo 5. En dicho capítulo, se expondrán diferentes casos de estudio siguiendo la metodología previa. Se explicará el objetivo de cada caso de estudio así como su implementación y los problemas encontrados a la hora de realizarlos, para luego hacer una breve evaluación del producto. En el Capítulo 7, se hace una mirada al futuro de la Realidad Aumentada, encontrando como es aplicada hoy en día y como podría ser en un futuro cercano. Finalmente se realiza una evaluación crítica del trabajo hecho y se resumirán las conclusiones obtenidas

The User Domain Integrity Assessment Technique

This paper presents a study performed for the detailed analysis of user domain and pseudorange integrity on Satellite Based Augmentation Systems. Experimental data of EGNOS pre-operational service was used for some specific tests, aiming at identifying for instance the good reaction of the EGNOS check-set subsystem and the way pseudorange errors are translated into the user domain. From this analysis, a new technique for User Domain Integrity Assessment (UDIA) was developed. With the UDIA technique, the integrity is checked for all possible geometries from 4 to all satellites in view from a network of stations. When no MI is found (from a wide and sufficiently dense stations network), it can be assured that the system is safe, and it becomes the best experimental guarantee at the User Domain Level. If a NMI/MI appears from any geometry of satellites from the stations in the network, thence a search algorithm is applied to identify the satellite, or combinations of satellites, responsible of such NMI/MIs (i.e., their exclusion leads to the disappearance of the NMI/MIs). After identifying such satellites, the reaction of the EGNOS Check Set (CS) is evaluated by checking if they were set as DU or NM within a predefined time interval after the NMI/MI is detected.Peer Reviewe

Latest Developments On The Payload In-Orbit Testing Of Galileo IOV Spacecraft

This paper describes the infrastructure and the functions of the Galileo In-Orbit Validation (IOV) In- Orbit Test (IOT) System to be located at the ESA Redu (Belgium) earth station. This is then followed by a detailed review of the main technical challenges posed by the IOT activity and how the IOV IOT System has been specifically designed to meet them

Climate change and the performance of pressurized irrigation water distribution networks under mediterranean conditions: Impacts and adaptations

Numerous previous studies have modelled the impact of climate change on crop water requirements and hence future water resource needs for irrigated agriculture. Fewer have considered the impacts on the performance of irrigation systems and the required engineering and managerial adaptations. This study considers the impacts and adaptations for a typical pressurized pipe irrigation system. The dry years of the baseline period (1970-90) in the southern part of Italy are expected to become the average or even wet year by the 2050s, according to HadCM3 projections. Under these conditions, the large water distribution systems designed to satisfy the baseline dry years will fail unless appropriate engineering or managerial adaptations are made. The resilience of District 8 of the Sinistra Ofanto to the possible future increase in irrigation demand has been assessed. A stochastic weather generator was used to generate future weather under the IPCC A1 and B1 emissions scenarios, taking into consideration the outputs of the HadCM3 model. A daily water balance model was used to quantify the actual and future peak water demand of the district. The reliability of each hydrant under baseline and future demand was calculated using a stochastic hydraulic model and the failure zones identified. Under the current design, the system can tolerate a peak demand discharge up to 1,500 l.s (-1), which is below the 2050s' average (1,720 l.s(-1)). Above that value, the performance of the system will fall drastically as the number of unreliable hydrants will increase. In the future, assuming the same cropping pattern, the threshold discharge (1,500 l.s(-1)) will be exceeded 80% of the time and, as an average, 20% of the system's hydrants will be failing during the peak demand periods. The adaptation options available to farmers and system managers in response to the increasing demand are discussed