Re: thoughts on A-GPS offline

2009-03-18 Thread Helge Hafting
Daniel Willmann wrote: On Tue, 10 Mar 2009 15:18:23 +0100 Helge Hafting helge.haft...@hist.no wrote: [...] It was just to be safe. The documentation states that you might not get a fix _at all_ if either position or time is outside the claimed accuracy. Now, maybe it works with 3km anyway

Re: thoughts on A-GPS offline

2009-03-18 Thread Joerg Reisenweber
Am Mi 18. März 2009 schrieb Helge Hafting: Daniel Willmann wrote: On Tue, 10 Mar 2009 15:18:23 +0100 Helge Hafting helge.haft...@hist.no wrote: [...] It was just to be safe. The documentation states that you might not get a fix _at all_ if either position or time is outside the claimed

Re: thoughts on A-GPS offline

2009-03-11 Thread Daniel Willmann
On Tue, 10 Mar 2009 15:18:23 +0100 Helge Hafting helge.haft...@hist.no wrote: I do not get 7s every time. This was an ideal test, I was standing in a place with good visibility. the gps used 9 or so satellites. Then I stopped tangogps and restarted it, and timed it from the moment the

Re: thoughts on A-GPS offline

2009-03-10 Thread Helge Hafting
Daniel Willmann wrote: On Wed, 04 Mar 2009 13:59:07 +0100 Helge Hafting helge.haft...@hist.no wrote: Thanks a lot! I needed this one too, and now get 7s warm starts! http://git.freesmartphone.org/?p=framework.git;a=commitdiff;h=ad2ec48cdb5ab9bdddc15adfc05cbd2e5b8a2cee 7s TTFF is pretty

Re: thoughts on A-GPS offline

2009-03-09 Thread mqy
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Re: thoughts on A-GPS offline

2009-03-08 Thread Daniel Willmann
On Tue, 3 Mar 2009 06:47:26 -0800 (PST) mqy meng.qing...@gmail.com wrote: I've verified the issue on GPS receiver in GTA02: When dump ALM/EPH messages, in several messages, fields follow SV ID field in payload are filled with zeros. Okay, so what you're saying is that this commit

Re: thoughts on A-GPS offline

2009-03-04 Thread Helge Hafting
Stefan Schmidt wrote: Hello. On Tue, 2009-03-03 at 12:31, Helge Hafting wrote: Daniel Willmann wrote: Now that hot-/warmstart with ephemeris playback works with the framework we should try to get an open server with aiding data available ASAP. I hope that fso-gpsd gets updated soon too

Re: thoughts on A-GPS offline

2009-03-03 Thread Daniel Willmann
On Tue, 03 Mar 2009 12:31:00 +0100 Helge Hafting helge.haft...@hist.no wrote: Daniel Willmann wrote: Now that hot-/warmstart with ephemeris playback works with the framework we should try to get an open server with aiding data available ASAP. I hope that fso-gpsd gets updated soon

Re: thoughts on A-GPS offline

2009-03-03 Thread mqy
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Re: thoughts on A-GPS offline

2009-03-02 Thread Daniel Willmann
On Sun, 1 Mar 2009 14:25:14 -0800 (PST) mqy meng.qing...@gmail.com wrote: UBX-AID-EPH and UBX-AID-ALM Messages for Satellite without valid Orbits When polling UBX-AID-EPH or UBX-AID-ALM messages, satellites without valid ephemeris or almanac data will return a complete UBX-AID-EPH or

Re: thoughts on A-GPS offline

2009-03-01 Thread Raphaël Jacquot
On Sun, Mar 01, 2009 at 08:31:16PM +0100, Daniel Willmann wrote: Now that hot-/warmstart with ephemeris playback works with the framework we should try to get an open server with aiding data available ASAP. is there a way to get the ephemeris data from the gps receiver at some point ? it could

Re: thoughts on A-GPS offline

2009-03-01 Thread mqy
community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community -- View this message in context: http://n2.nabble.com/thoughts-on-A-GPS-offline-tp2338403p2406026.html Sent from the Openmoko Community mailing list archive at Nabble.com

Re: thoughts on A-GPS offline

2009-03-01 Thread Raphaël Jacquot
On Sun, Mar 01, 2009 at 12:57:30PM -0800, mqy wrote: U-blox receiver allows polling AID-EPH, AID-ALM data. For each type, we can poll 32 messages for 32 satellites. The precondition is: current fix is valid -- at least 3 SVs has valid EPH(or ALM?) data. These data get invalid 2~4 hours

Re: thoughts on A-GPS offline

2009-03-01 Thread Daniel Willmann
On Sun, 1 Mar 2009 21:39:25 +0100 Raphaël Jacquot sxp...@sxpert.org wrote: On Sun, Mar 01, 2009 at 08:31:16PM +0100, Daniel Willmann wrote: Now that hot-/warmstart with ephemeris playback works with the framework we should try to get an open server with aiding data available ASAP. is

Re: thoughts on A-GPS offline

2009-03-01 Thread mqy
, Daniel Willmann ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community -- View this message in context: http://n2.nabble.com/thoughts-on-A-GPS-offline-tp2338403p2406454.html Sent

Re: thoughts on A-GPS offline

2009-02-22 Thread Helge Hafting
is only valid for 30min or so. Saving the ephemeris locally helps if your gps app crash and gets restarted, but it won't help you the following day. A server could help though. -- View this message in context: http://n2.nabble.com/thoughts-on-A-GPS-offline-tp2338403p2366825.html Sent from

Re: thoughts on A-GPS offline

2009-02-22 Thread mqy
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Re: thoughts on A-GPS offline

2009-02-20 Thread Helge Hafting
Cédric Berger wrote: On Wed, Feb 18, 2009 at 17:49, Al Johnson openm...@mazikeen.demon.co.uk wrote: I may be misunderstanding the suggestion, but I don't think it had anything to do with data from ublox. The suggestion was to use data sent by other freerunner users instead of the data

Re: thoughts on A-GPS offline

2009-02-20 Thread Timo Juhani Lindfors
Helge Hafting helge.haft...@hist.no writes: As far as I know - we do know the format. The SHR distribution Yes frameworkd ogpsd has some info about it: # Feed GPS with position and time self.send(AID-INI, 48, {X : pos.get(x, 0) , Y : pos.get(y, 0) , Z : pos.get(z, 0), \ POSACC :

Re: thoughts on A-GPS offline

2009-02-20 Thread Stefan Monnier
But where do we get this almanac data? Can we redistribute what u-box.com sends us? AFAIK, the almanac data that framworkd saves from the GPS can come from u-blox but can also come directly from the GPS satellites. So we could try to setup some kind of peer-to-peer distribution of the data

Re: thoughts on A-GPS offline

2009-02-18 Thread Helge Hafting
Timo Juhani Lindfors wrote: mqy meng.qing...@gmail.com writes: It is not a problem that user account is required when download u-blox online aiding data. It is a problem since u-blox might go out of business and you might not want to tell them where you are all time. Their server also might

Re: thoughts on A-GPS offline

2009-02-18 Thread Cédric Berger
On Wed, Feb 18, 2009 at 16:52, Helge Hafting helge.haft...@hist.no wrote: Timo Juhani Lindfors wrote: mqy meng.qing...@gmail.com writes: It is not a problem that user account is required when download u-blox online aiding data. It is a problem since u-blox might go out of business and you

Re: thoughts on A-GPS offline

2009-02-18 Thread Al Johnson
On Wednesday 18 February 2009, Cédric Berger wrote: On Wed, Feb 18, 2009 at 16:52, Helge Hafting helge.haft...@hist.no wrote: Timo Juhani Lindfors wrote: mqy meng.qing...@gmail.com writes: It is not a problem that user account is required when download u-blox online aiding data. It is

Re: thoughts on A-GPS offline

2009-02-18 Thread Cédric Berger
On Wed, Feb 18, 2009 at 17:49, Al Johnson openm...@mazikeen.demon.co.uk wrote: I may be misunderstanding the suggestion, but I don't think it had anything to do with data from ublox. The suggestion was to use data sent by other freerunner users instead of the data supplied by ublox. As I

Re: thoughts on A-GPS offline

2009-02-17 Thread Rikard Nilsson
What about if we hack the data format of u-blox AGPS offline file, and extract data for current location and time? location can be specified by clicking map, time from local system time. If we could, we would be able to submit data to GPS chip as AGPS online message on demand. What do you

Re: thoughts on A-GPS offline

2009-02-17 Thread Ed Kapitein
Hi Rikard, Yes, take a look at www.opencellid.org. This will give you your rough location and you can use that to get the agps data for your area. I have some scripts that will do that for you, so just let me know if you are intressted. Kind regards, Ed On Tue, 2009-02-17 at 09:24 +0100,

Re: thoughts on A-GPS offline

2009-02-17 Thread Risto H. Kurppa
On Tue, Feb 17, 2009 at 10:40 AM, Ed Kapitein e...@kapitein.org wrote: Hi Rikard, Yes, take a look at www.opencellid.org. This will give you your rough location and you can use that to get the agps data for your area. I have some scripts that will do that for you, so just let me know if

Re: thoughts on A-GPS offline

2009-02-17 Thread Timo Juhani Lindfors
Ed Kapitein e...@kapitein.org writes: I have some scripts that will do that for you, so just let me know if you are intressted. Note that we can get the whole opencellid.org database and access it offline. ___ Openmoko community mailing list

Re: thoughts on A-GPS offline

2009-02-17 Thread Timo Juhani Lindfors
mqy meng.qing...@gmail.com writes: I think get locations by cell id is especially useful in case of weak or no GPS signals. I'll have a look at opencellid, thanks. Note also that ogpsd of frameworkd supports sending this off-line aiding data. ___

Re: thoughts on A-GPS offline

2009-02-17 Thread Rikard Nilsson
would it be possible to get the satelite information that we get from u-blox from somewhere else? somewhere that dont require user account? /rikard On Tue, Feb 17, 2009 at 12:41 PM, Timo Juhani Lindfors timo.lindf...@iki.fi wrote: mqy meng.qing...@gmail.com writes: I think get locations by

Re: thoughts on A-GPS offline

2009-02-17 Thread Ed Kapitein
Well, i put a tarball together with my scripts and put it on my website. http://www.kapitein.org/openmoko Please read it carefully before installing. All feedback is welcome ofcourse. Kind regards, Ed On Tue, 2009-02-17 at 11:42 +0200, Risto H. Kurppa wrote: On Tue, Feb 17, 2009 at 10:40 AM, Ed

Re: thoughts on A-GPS offline

2009-02-17 Thread mqy
-- View this message in context: http://n2.nabble.com/thoughts-on-A-GPS-offline-tp2338403p2340696.html Sent from the Openmoko Community mailing list archive at Nabble.com. ___ Openmoko community mailing list community@lists.openmoko.org http

Re: thoughts on A-GPS offline

2009-02-17 Thread Timo Juhani Lindfors
mqy meng.qing...@gmail.com writes: It is not a problem that user account is required when download u-blox online aiding data. It is a problem since u-blox might go out of business and you might not want to tell them where you are all time. Their server also might be down. There are plenty of

thoughts on A-GPS offline

2009-02-16 Thread mqy
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