PAGE CONTENTS
Objectives
EODIS network and services are being developed with the aim to disseminate the large amount of EO products coming from the Ground Segments of several Acquisition Stations. This will establish a complete end-to-end data distribution service over a satellite link complemented by a terrestrial network (Internet) used to transfer protocol control messages.
EODIS will be able to operate on a network consisting of many TXs (two TXs are foreseen in the first operational phase of the project), and RXs (five RXs are foreseen in the first operational phase of the project), managing to transfer simultaneously data files to a set of addressed RXs (multicast) or even to all RXs stations at the same time (broadcast).
EODIS shall be able to manage easily and with priority tasks which have been scheduled as well as ‘on demand’ session requests coming from a multitude of users spread over Europe.
Challenges
N/A
Plan
The Project is being developed in two phases:
Phase I – (March 2003 – August 2005)
During this phase the EODIS system (Eodis Operation Centre, TX Sites, RX client sites) will be set-up for the Pilot Operations. The phase 1 ends with the Mid Demonstration Review (MDR).
Phase II – (September 2005 – December 2005)
During this phase the EODIS Pilot Operation will be executed and the commercial strategy defined. The Phase ends with the Final Review (FR) where the pilot Operations evaluations results, recommendations gathered from the end user community and the future strategy will be provided.
Current Status
The deliverables for the Final Review were provided during week 49 (2005). The Final Review was successfully carried out during week 51 (2005).
The EODIS system has been developed as a valid technical solution to efficiently handle the dissemination of large amounts of systematic and on-demand data coming from different transmitting nodes to a large receiving park (hundreds) of users. Demonstrations were carried out on a limited number of stations but the system is easily expandable to match initial specifications. This is mainly achieved through a DVB-S channel for high-rate traffic data via an Internet return link for Monitoring and Control data and through the ALISEO module in charge of managing the allocated resources.
User evaluation has been positive, as they appreciated the high reliability of the system and the detailed and user friendly web interface (installed on each receiving platform). It allowed them to keep the overall status of reception tasks under control. They perceived the high potentiality of the EODIS infrastructure and declared their interest/availability in order to exploit its features for future operational scenarios.
Today, the delivered EODIS system does not yet represent a fully commercial and self-standing packet offering, although its features can be taken as a valid model in order to develop additional service layers. In fact, standard accounting, billing and advanced Monitoring & Control features (as the Web Server on the ALISEO module) at the moment have been not implemented but can be easily adapted and integrated in the developed EODIS platform.