In 2005 the first Russian nanosatellite TNS-0 JVal (5kg) was launched. It has shown the possibility and economical efficiency to realize scientific and technological tasks using such satellites. The results we have got by the flight tests let us to form limits and requirements for hard and software of such a satellite to solve most of the mission tasks. Acceptable specification figures (mass, power consumption, reliability and cost) are realized by designing all conventional spacecraft electronic subsystems (Tracking, Telemetry & Command System (TT&C), Guidance, Control and Navigation System (GC&NS), Structure & Thermal Control System) of a satellite in highly integrated information unit. Core of the unit should be a specialized on-board computer (OBC) with open architecture in order to confirm special device interconnections. OBC should solve all service tasks of the satellite (provides data exchange with all satellite subsystems, supports real time clock, performs time scheduling, executes command information, collects telemetry data, records and stores payload data, performs electrical power switching and distribution to the users, performs diagnostics and configuration control). Offered clause describes OBC specially designed by FSUE 'RISDE' for technological nanosatellite platform. The core of the OBC is a single board computer. The central processor of the OBC is the TMS320VC5416 (DSP) from Texas Instruments. The peripheral devices of the OBC are based on the APA600 (FPGA) from Actel.
OBC for technological nanosatellite platform
Bordrechner für eine technologische Nanosatelliten-Plattform
2007
4 Seiten, 3 Bilder, 1 Tabelle, 1 Quelle
Conference paper
English
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