Re: GPS -- AGPS

2008-06-09 Thread AVee
On Sunday 08 June 2008 18:07, [EMAIL PROTECTED] wrote: On Sunday 08 June 2008 10:41:37 Brad Midgley wrote: Tim gpsd has a mode where it listens to both the gps and an online dgps source and produces corrected output. See the manpage for gpsd. I think you have to have the unit online

Re: GPS -- AGPS

2008-06-08 Thread Tim Niemeyer
Hallo Brad, * Brad Midgley [EMAIL PROTECTED] [06-06-08 07:14]: Joseph That's what I, as an archaeologist, want D-GPS for :) gpsd has a mode where it listens to both the gps and an online dgps source and produces corrected output. See the manpage for gpsd. I think you have to have the

Re: GPS -- AGPS

2008-06-08 Thread beren
On Sunday 08 June 2008 10:41:37 Brad Midgley wrote: Tim gpsd has a mode where it listens to both the gps and an online dgps source and produces corrected output. See the manpage for gpsd. I think you have to have the unit online continuously. Does gpsd have control over the various

Re: GPS -- AGPS

2008-06-06 Thread Joseph Reeves
Aaaaha, I seen it being used for all sorts of archeology and buildings construction purposes. That's what I, as an archaeologist, want D-GPS for :) With AGPS for quicker acquisition time (I'm thinking this will be particularly useful when your phone's in your pocket in suspend mode - turn it

Re: GPS -- AGPS

2008-06-06 Thread Brad Midgley
Joseph That's what I, as an archaeologist, want D-GPS for :) gpsd has a mode where it listens to both the gps and an online dgps source and produces corrected output. See the manpage for gpsd. I think you have to have the unit online continuously. -- Brad

Re: GPS -- AGPS

2008-06-05 Thread matt_hsu
Brad Midgley wrote: Yorick Maybe I missed somehting, but to my knowlegde the AGPS is not yet working on the Freerunner. Is there any work being done to get AGPS working? Does anybody have an idea if it will ever be implemented or not? And if it will be implemented, when will it be

GPS -- AGPS

2008-06-05 Thread Yorick Matthys
** Matt said: http://people.openmoko.org/matt_hsu/ImplementationAssistNowServerAndClient(GPS.G4-SW-05017-C).pdf Cheers, Matt *** I get the impression there is only informtion to have AGPS working with an internet connection. I was

GPS -- AGPS

2008-06-05 Thread Yorick Matthys
** Matt said: http://people.openmoko.org/matt_hsu/ImplementationAssistNowServerAndClient(GPS.G4-SW-05017-C).pdf Cheers, Matt *** Scratch my previous question, I realise now that it was a stupid one :)

Re: GPS -- AGPS

2008-06-05 Thread Tyrell Berry
I'm sorry if this question is completely ignorant, but I am always seeking understanding, and my previous understanding is inconsistant with the discussion here. I had originally believed 2 things. First, that AGPS was required by law in all US cell phones (Possibly elsewhere). And second, I

Re: GPS -- AGPS

2008-06-05 Thread Lally Singh
A quick look on google says that GPS is required for all cell phones (well, E911 requires that 911 calls from cell phones also get the coordinates, and operators didn't want to change all their towers, so they started requiring their phones to have GPS). Sadly, most phones don't allow application

Re: GPS -- AGPS

2008-06-05 Thread Joerg Reisenweber
Am Do 5. Juni 2008 schrieb Lally Singh: AFAIK, the AGPS allows you to upload additional information into the onboard correlator (the CPU that does the actual location calculations for GPS) to enhance the accuracy over what you get with simple satellite triangulation. It's about reducing

Re: GPS -- AGPS

2008-06-05 Thread Lally Singh
On Thu, Jun 5, 2008 at 7:25 PM, Joerg Reisenweber [EMAIL PROTECTED] wrote: Am Do 5. Juni 2008 schrieb Lally Singh: AFAIK, the AGPS allows you to upload additional information into the onboard correlator (the CPU that does the actual location calculations for GPS) to enhance the accuracy over

Re: GPS -- AGPS

2008-06-05 Thread Flyin_bbb8
actually i believe it does help in much better accuracy (unless if you're indoors) On Fri, Jun 6, 2008 at 3:11 AM, Lally Singh [EMAIL PROTECTED] wrote: On Thu, Jun 5, 2008 at 7:25 PM, Joerg Reisenweber [EMAIL PROTECTED] wrote: Am Do 5. Juni 2008 schrieb Lally Singh: AFAIK, the AGPS allows

Re: GPS -- AGPS

2008-06-05 Thread Joerg Reisenweber
Am Fr 6. Juni 2008 schrieb Flyin_bbb8: just wanted to add, Differential GPS is mainly for aircraft GPS systems to get better guidance on the ILS (Instrument Landing System). Aaaaha, I seen it being used for all sorts of archeology and buildings construction purposes. And from the info in

Re: GPS -- AGPS

2008-06-05 Thread Flyin_bbb8
An *A-GPS* receiver can address these problems in several ways, using an *Assistance Server*: - The Assistance Server can locate the phone roughly by what cell sitehttp://en.wikipedia.org/wiki/Cell_siteit is connected to on the cellular network http://en.wikipedia.org/wiki/Cellular_network.

GPS -- AGPS

2008-06-04 Thread Yorick Matthys
Hi, Maybe I missed somehting, but to my knowlegde the AGPS is not yet working on the Freerunner. Is there any work being done to get AGPS working? Does anybody have an idea if it will ever be implemented or not? And if it will be implemented, when will it be ready? y

Re: GPS -- AGPS

2008-06-04 Thread Joseph Reeves
Not working yet, but we're working on it: http://www.mail-archive.com/community@lists.openmoko.org/msg17058.html Released as soon as it's ready at: http://openarchaeology.net If you'd like to contribute please feel free :) Joseph 2008/6/4 Yorick Matthys [EMAIL PROTECTED]: Hi, Maybe I

Re: GPS -- AGPS

2008-06-04 Thread Brad Midgley
Yorick Maybe I missed somehting, but to my knowlegde the AGPS is not yet working on the Freerunner. Is there any work being done to get AGPS working? Does anybody have an idea if it will ever be implemented or not? And if it will be implemented, when will it be ready? Len Chen sent a pdf to

Re: GPS -- AGPS

2008-06-04 Thread matt_hsu
Yorick Matthys wrote: Hi, Maybe I missed somehting, but to my knowlegde the AGPS is not yet working on the Freerunner. Is there any work being done to get AGPS working? Hi Yorick, There are two approaches of A-GPS supporting of ublox4 chip which are on-line mode and off-line