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post Aug 25 2005, 11:22 AM
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http://news.bbc.co.uk/1/hi/sci/tech/4180840.stm

Europe has fixed on a concept for its next mission to land on the Red Planet.

It aims to send a single robot rover to the Martian surface along with another, stationary, science package.
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elakdawalla
post Jun 25 2006, 01:39 AM
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Question -- would faster microprocessors also require more power?

--Emily


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RNeuhaus
post Jun 25 2006, 01:54 AM
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QUOTE (elakdawalla @ Jun 24 2006, 08:39 PM) *
Question -- would faster microprocessors also require more power?

--Emily

Definitely, yes. That is one of the engineering concerns.

However, there is a new variety of microprocessors which are energy efficient, inclusive much energy economy than RAD750 and are much more powerfull such as the Intel Centrino of last genertion which as capable as the last model of Pentium IV.

Rodolfo
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mchan
post Jun 25 2006, 05:19 AM
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Well, I wouldn't say definitely. In general, power = C*v^2*f where C is a constant depending on the number of gates and the process (how small the gates are), v is the supply voltage, and f is the switching frequency. You can bump up the frequency and keep the same power by improving process and reducing supply voltage.

Terrestrial bound commercial microprocessors have kept pushing process improvements (lower switching and quiescent power per gate), and supply voltage reductions. Analagous improvements in rad-hard microprocessors are more difficult and have been slower-paced since reducing gate geometries and switching threshold voltages typically makes them more susceptible to particle induced single event upsets. And there is less economic demand for rapid improvements in rad-hard proceessors than in commercial processors. Rad-hard processors are thus more likely than commercial processors to require more power for higher switching frequencies.
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helvick
post Jun 25 2006, 10:09 AM
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QUOTE (mchan @ Jun 25 2006, 06:19 AM) *
Rad-hard processors are thus more likely than commercial processors to require more power for higher switching frequencies.

100% true however it is worth pointing out that as the technologies improve the general trend is towards (much) more computing power per watt within similar processors.

The MER RAD6000 from BAE consumes 20watts @ 20Mhz. The RAD750 comsumes 5-14watts @ 132Mhz. The 750 in it's most stringent radiation hardened mode is at least 20x more efficient (in terms of instructions/watt) than the 6000 used on the MER's.
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Posts in this topic
- Sunspot   ExoMars   Aug 25 2005, 11:22 AM
- - Marcel   They want to land that rover so badly......(which ...   Aug 25 2005, 01:21 PM
- - djellison   And why the american data realy - is MEX expected ...   Aug 25 2005, 01:39 PM
|- - Marcel   QUOTE (djellison @ Aug 25 2005, 01:39 PM)And ...   Aug 25 2005, 01:52 PM
- - RNeuhaus   What is MEX? I haven't heard of it. Will be gl...   Aug 25 2005, 02:43 PM
|- - Marcel   QUOTE (RNeuhaus @ Aug 25 2005, 02:43 PM)What ...   Aug 25 2005, 02:52 PM
- - RNeuhaus   Ooppss, it is a smart word! Thanks Marcel.   Aug 25 2005, 02:54 PM
- - djellison   One thing space isnt short of it's Acronyms ...   Aug 25 2005, 02:56 PM
|- - Marcel   QUOTE (djellison @ Aug 25 2005, 02:56 PM)One ...   Aug 25 2005, 02:58 PM
||- - Marcel   QUOTE (Marcel @ Aug 25 2005, 02:58 PM)And you...   Aug 25 2005, 02:59 PM
|- - RNeuhaus   QUOTE (djellison @ Aug 25 2005, 09:56 AM)One ...   Aug 25 2005, 02:58 PM
- - Cugel   From the article: QUOTE a mass of 120kg for the ...   Aug 25 2005, 03:13 PM
|- - RNeuhaus   QUOTE (Cugel @ Aug 25 2005, 10:13 AM)From the...   Aug 25 2005, 03:20 PM
- - djellison   A straight copy of the Beagle 2 science payload wo...   Aug 25 2005, 03:25 PM
- - djellison   Oh MODY - some call it MO2k1- Mars Odyssey Doug   Aug 25 2005, 04:12 PM
- - SigurRosFan   Will SMILE fly to Mars with ESA's ExoMars?? h...   Aug 25 2005, 07:32 PM
- - RNeuhaus   QUOTE SigurRosFan(Posted Today, 02:32 PM) The ESA ...   Aug 25 2005, 08:02 PM
- - BruceMoomaw   One reason that NASA decided not to fly a 1-meter ...   Aug 25 2005, 08:28 PM
- - SigurRosFan   Sorry. Wrong link. MOA will fly definitely(...   Aug 25 2005, 08:44 PM
- - Rakhir   Alcatel Alenia Space starts the ExoMars mission de...   Jan 31 2006, 01:25 PM
|- - vikingmars   Here is the missing link : http://www.alcatel.com/...   Jan 31 2006, 03:05 PM
- - AlexBlackwell   Excerpt from the February 13, 2006, issue of Aviat...   Feb 13 2006, 11:39 PM
- - Rakhir   Europe Mars shot looks to upgrade http://news.bb...   Mar 16 2006, 01:07 PM
|- - AlexBlackwell   QUOTE (Rakhir @ Mar 16 2006, 01:07 PM) Eu...   Mar 16 2006, 06:00 PM
- - ljk4-1   The technology for this "lab on a chip" ...   Apr 25 2006, 02:51 PM
|- - tty   QUOTE (ljk4-1 @ Apr 25 2006, 04:51 P...   Apr 25 2006, 08:43 PM
- - PhilHorzempa   Even though the American Mars program has been cut...   May 26 2006, 03:03 AM
|- - jamescanvin   QUOTE (PhilHorzempa @ May 26 2006, 01:03 ...   May 26 2006, 04:14 AM
|- - AndyG   QUOTE (jamescanvin @ May 26 2006, 05:14 A...   May 26 2006, 09:31 AM
||- - karolp   At the first sight what looks much different to me...   May 26 2006, 10:17 AM
||- - djellison   QUOTE (karolp @ May 26 2006, 11:17 AM) At...   May 30 2006, 12:22 PM
|- - Bob Shaw   Here's one I prepared earlier! Bob Shaw   May 26 2006, 11:43 AM
|- - ustrax   QUOTE (jamescanvin @ May 26 2006, 05:14 A...   May 26 2006, 01:40 PM
- - lyford   That's a really nice pic - looks like the dril...   May 26 2006, 04:00 AM
- - BruceMoomaw   I suspect ESA is not going to be able to come anyw...   May 26 2006, 04:39 AM
|- - Stephen   I notice the ExoMars rover as drawn in those pics ...   May 31 2006, 01:50 AM
|- - RNeuhaus   QUOTE (Stephen @ May 30 2006, 08:50 PM) I...   May 31 2006, 09:41 PM
- - remcook   QUOTE (lyford @ May 26 2006, 05:00 AM) Li...   May 26 2006, 08:48 AM
- - Cugel   And armed to kill! I wonder if the motors on ...   May 27 2006, 02:40 PM
|- - jamescanvin   QUOTE (Cugel @ May 28 2006, 12:40 AM) The...   May 28 2006, 01:27 AM
|- - Bob Shaw   I hope they have some way to pop the drill assembl...   May 28 2006, 01:36 AM
- - PhilCo126   Well, the ESA Marsrover ExoMars 2011 project is f...   May 30 2006, 11:40 AM
|- - jaredGalen   QUOTE (PhilCo126 @ May 30 2006, 11:40 AM)...   May 30 2006, 10:00 PM
- - ljk4-1   British Scientists Unveil Latest Craft To Search F...   Jun 13 2006, 12:53 PM
|- - ustrax   QUOTE (ljk4-1 @ Jun 13 2006, 01:53 P...   Jun 13 2006, 01:07 PM
|- - ljk4-1   QUOTE (ustrax @ Jun 13 2006, 09:07 AM) Br...   Jun 13 2006, 01:59 PM
|- - RNeuhaus   QUOTE (ljk4-1 @ Jun 13 2006, 08:59 A...   Jun 13 2006, 03:58 PM
|- - helvick   QUOTE (RNeuhaus @ Jun 13 2006, 04:58 PM) ...   Jun 13 2006, 09:30 PM
- - Analyst   I am from Europe, but this article is cheap talk, ...   Jun 13 2006, 01:49 PM
|- - djellison   QUOTE (Analyst @ Jun 13 2006, 02:49 PM) I...   Jun 13 2006, 02:05 PM
- - Analyst   Good point.   Jun 13 2006, 02:31 PM
- - Redstone   Haven't seen this posted yet, so... You can d...   Jun 13 2006, 02:33 PM
|- - ustrax   Bridget: (origin: Gaelic.) Brighid, "fiery da...   Jun 13 2006, 02:48 PM
|- - Bob Shaw   QUOTE (Redstone @ Jun 13 2006, 03:33 PM) ...   Jun 13 2006, 05:54 PM
- - DonPMitchell   Space programs are fundamentally competative, whic...   Jun 13 2006, 04:35 PM
- - RNeuhaus   Helvick, Your comments are for Amen! Much impr...   Jun 13 2006, 09:53 PM
- - djellison   Of course, with custom realtime OS's - the pro...   Jun 13 2006, 09:58 PM
|- - helvick   QUOTE (djellison @ Jun 13 2006, 10:58 PM)...   Jun 13 2006, 10:29 PM
|- - mcaplinger   QUOTE (djellison @ Jun 13 2006, 02:58 PM)...   Jun 14 2006, 02:24 AM
|- - RNeuhaus   QUOTE (mcaplinger @ Jun 13 2006, 09:24 PM...   Jun 14 2006, 02:59 AM
||- - mcaplinger   QUOTE (RNeuhaus @ Jun 13 2006, 07:59 PM) ...   Jun 14 2006, 03:45 AM
||- - RNeuhaus   QUOTE (mcaplinger @ Jun 13 2006, 10:45 PM...   Jun 14 2006, 04:45 PM
||- - helvick   QUOTE (RNeuhaus @ Jun 14 2006, 05:45 PM) ...   Jun 15 2006, 04:49 PM
|- - helvick   QUOTE (mcaplinger @ Jun 14 2006, 03:24 AM...   Jun 14 2006, 06:48 AM
- - lyford   Did someone say RAD 750 User Manuals? And much mo...   Jun 14 2006, 12:04 AM
- - monitorlizard   I'm an absolute idiot when it comes to compute...   Jun 14 2006, 01:43 AM
- - DonPMitchell   The Bell Labs inventor of UNIX, Ken Thompson, was ...   Jun 14 2006, 03:23 AM
|- - Bob Shaw   QUOTE (DonPMitchell @ Jun 14 2006, 04:23 ...   Jun 14 2006, 09:34 AM
|- - DonPMitchell   QUOTE (Bob Shaw @ Jun 14 2006, 02:34 AM) ...   Jun 14 2006, 05:04 PM
- - RNeuhaus   Brits Unveil Latest Robot To Search For Life On Ma...   Jun 15 2006, 03:37 PM
- - hendric   What's your thoughts on the DARPA challenge? ...   Jun 16 2006, 05:49 AM
|- - mcaplinger   QUOTE (hendric @ Jun 15 2006, 10:49 PM) W...   Jun 16 2006, 02:13 PM
- - djellison   We don't have a Mars GPS system, and we're...   Jun 16 2006, 06:20 AM
- - DonPMitchell   It would save a lot of time and planning if a rove...   Jun 16 2006, 07:17 AM
- - djellison   Don - have you seen the results of the Darpa chall...   Jun 16 2006, 09:01 AM
- - ljk4-1   Jim Bell said that during certain points of the da...   Jun 16 2006, 02:09 PM
- - djellison   To be fair - it was hardly a beautiful tarmac high...   Jun 16 2006, 02:38 PM
|- - mcaplinger   QUOTE (djellison @ Jun 16 2006, 07:38 AM)...   Jun 16 2006, 03:20 PM
|- - DonPMitchell   QUOTE (mcaplinger @ Jun 16 2006, 08:20 AM...   Jun 16 2006, 07:26 PM
|- - Stephen   QUOTE (DonPMitchell @ Jun 16 2006, 07:26 ...   Jun 23 2006, 12:32 PM
||- - djellison   QUOTE (Stephen @ Jun 23 2006, 01:32 PM) n...   Jun 23 2006, 12:39 PM
|- - Cugel   QUOTE (DonPMitchell @ Jun 16 2006, 07:26 ...   Jun 23 2006, 02:42 PM
- - djellison   Oh - I quite agree ( and mentioned earlier ) there...   Jun 16 2006, 03:29 PM
|- - RNeuhaus   QUOTE (djellison @ Jun 16 2006, 10:29 AM)...   Jun 16 2006, 04:06 PM
- - PhilCo126   Here's the cover of ESA BUlletin we talked abo...   Jun 22 2006, 11:07 AM
- - dvandorn   Cugel, we're talking about artificial *intelli...   Jun 23 2006, 05:24 PM
- - Greg Hullender   Has anyone proposed a manned mission for the purpo...   Jun 24 2006, 04:52 PM
|- - RNeuhaus   QUOTE (Greg Hullender @ Jun 24 2006, 11:5...   Jun 24 2006, 08:52 PM
||- - djellison   QUOTE (RNeuhaus @ Jun 24 2006, 09:52 PM) ...   Jun 24 2006, 08:58 PM
||- - RNeuhaus   QUOTE (djellison @ Jun 24 2006, 03:58 PM)...   Jun 25 2006, 01:29 AM
|- - elakdawalla   QUOTE (Greg Hullender @ Jun 24 2006, 09:5...   Jun 24 2006, 10:41 PM
- - remcook   I've heard people on message boards like these...   Jun 24 2006, 05:40 PM
- - djellison   I confess...I've driven every functional RRGTM...   Jun 24 2006, 10:54 PM
- - elakdawalla   Beautiful work, Doug! To get the TPS one t...   Jun 24 2006, 11:43 PM
- - elakdawalla   Question -- would faster microprocessors also requ...   Jun 25 2006, 01:39 AM
- - RNeuhaus   QUOTE (elakdawalla @ Jun 24 2006, 08:39 P...   Jun 25 2006, 01:54 AM
- - mchan   Well, I wouldn't say definitely. In general, ...   Jun 25 2006, 05:19 AM
- - helvick   QUOTE (mchan @ Jun 25 2006, 06:19 AM) Rad...   Jun 25 2006, 10:09 AM
- - RNeuhaus   QUOTE (mchan @ Jun 25 2006, 12:19 AM) Wel...   Jun 26 2006, 12:12 AM
- - mchan   Sounds like a different Moore than the one I am fa...   Jun 26 2006, 09:13 AM
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