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Spacecrafts' Operating Systems, Topic about Spacecrafts' OS
hal_9000
post Jun 29 2005, 12:10 AM
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I want to know more about Spacecrafts' OS!
How to work a OS in a spacecraft?
What OS work in Mars Rovers?
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tty
post Jul 7 2005, 08:54 PM
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Some notes on how reliability is handled in the aerospace world for flight safety critical software.

Redundancy (three or four independent channels, which "vote" on what to do)

The code for each channel is written by a separate group working independently but to the same specification, if possible using different programming languages and/or compilers.

Use well tried and mature hardware and software ONLY. Until quite recently ruggedized 80486 and Motorola 68000-series were the processors of choice (and at least one of the world's most advanced aircraft is actually flying around using CP/M as OS for some embedded processors)

Test the hell out of the code.

AND KEEP IT SIMPLE

tty
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- hal_9000   Spacecrafts' Operating Systems   Jun 29 2005, 12:10 AM
- - jamescanvin   QUOTE (hal_9000 @ Jun 29 2005, 10:10 AM)I wan...   Jun 29 2005, 12:29 AM
|- - hal_9000   QUOTE (jamescanvin @ Jun 28 2005, 09:29 PM)Go...   Jun 29 2005, 12:34 AM
- - Richard Trigaux   They do not send bad stuff in space. It has to be ...   Jun 29 2005, 05:31 PM
|- - chris   QUOTE (Richard Trigaux @ Jun 29 2005, 05:31 P...   Jul 5 2005, 09:45 AM
|- - Richard Trigaux   QUOTE (chris @ Jul 5 2005, 09:45 AM)Bugs rela...   Jul 6 2005, 05:47 AM
|- - chris   QUOTE (Richard Trigaux @ Jul 6 2005, 05:47 AM...   Jul 6 2005, 10:03 AM
- - Bob Shaw   QUOTE (hal_9000 @ Jun 29 2005, 01:10 AM)I wan...   Jul 6 2005, 12:49 AM
- - Richard Trigaux   Chris, If I were naughty, I would reply that the M...   Jul 6 2005, 05:10 PM
|- - mike   In my experience with programming, the language (c...   Jul 6 2005, 09:42 PM
|- - garybeau   Regardless of what operating system or compiler yo...   Jul 6 2005, 11:25 PM
|- - Richard Trigaux   Yes sure, there is no substitute for testing. But ...   Jul 7 2005, 08:17 AM
- - tty   Some notes on how reliability is handled in the ae...   Jul 7 2005, 08:54 PM
- - PhilCo126   Other than a reliable OS, the spacecraft need good...   Nov 4 2005, 08:14 AM
|- - Richard Trigaux   QUOTE (PhilCo126 @ Nov 4 2005, 08:14 AM)Other...   Nov 5 2005, 08:23 AM
- - PhilCo126   Very interesting reply Richard !!! ...   Dec 12 2005, 08:54 AM
|- - lyford   QUOTE (PhilCo126 @ Dec 12 2005, 12:54 AM)Just...   Dec 22 2005, 04:39 PM
- - PhilCo126   I remember back in 1997, there was some 'discu...   Dec 22 2005, 09:08 AM
- - mike   I remember reading that core memory is particularl...   Dec 24 2005, 08:11 AM
- - PhilCo126   For my post-graduate I wrote an end-of-study paper...   Dec 24 2005, 05:27 PM

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