Re: Future of an Open Phone - Diner at FSOSHRUDCON

2009-04-06 Thread Didier Ptitjes

Hello,

So we discussed some of this stuff on IRC with Stefan, on the 2nd of 
April. Sorry, to not have written this mail before, I'm kinda busy these 
weeks.


It seems we did aggree to let the dinner stay informal. Rather we would 
like to split the saturday afternoon, as it appears obvious that we 
won't do code extensively.


So if people here are OK, let's split the afternoon in two:

- 2h or 2h30 to discuss collaboratively about the future of an open phone
- 3h30 or 4h00 to have a hardware workshop and a design workshop in 
parallel.


One question is would we like the discussion to happen before the 
workshops or the contrary. We must think of this based on tiredness of 
people. So for me the discussion should happen first.


I think we should track some design subjects now before the convention 
happens. And also the talks in the morning may have oriented also the 
way we design as the goaled architectures of FSO and SHR might be 
clearer for everybody.


I'll write a dedicated mail for the talks.

Best regards,
Didier.

Stefan Schmidt wrote:

Hello.

On Thu, 2009-04-02 at 20:05, Didier Ptitjes wrote:

Stefan Schmidt wrote:

I changed the normal dine on saturday to the catchy name Future of an Open
Phone - Diner.

Question we like to discuss there are less in the area of middleware and
application, the whole conf is about it, but about openess of mobile phones on a
hardware/kernel/business level.

What does Openmoko offer us? What alternatives are available? For which phones
there are reverse-engineering projects out there? What is the status of them?
Does they make sense? Any other vendor coming out with open phones? Develop a
new one?
Strangely, this is the kind of things I would have liked to discuss more  
extensively during the saturday afternoon.


No problem for me.

You must understand that I don't think coding in an afternoon. I don't  
like coding run because most of the time this lead to things to rewrite.  
 I would be ok for collaborative design, but I'm quite sure I won't code 
anything.


In fact, I code enough during the year and having the opportunity to  
meet you all I don't want to be in front of my screen. As I understood  
it, Ainulindale may be of my opinion.


The workshop I like to see there are also not about doing monkey work coding. I
was thinking about working in a group on some ideas which often would include
some coding for demo purpose, etc.

Hardware workshoping is ok for me because hardware moding needs to be  
made along to competent people and this is the opportunity.


I'm wondering how much hardware workshops we will really have. Buzz fixing is
more a offer then a real workshop. Y-Cable would be one. Anything else?

In place of coding, I would have been glad if we could have some  
discussions or collaborative design.


Yeah, that is the same here. We should use the time we spent together wisely.
That brings me to the program. Do we have someone volunteering getting some
speakers and a schedule up? No need to plan every detail, but one person in
charge for the coordination would be good imho.


This and more is likely to be discussed. Location is unknown yet. Depending on
the number of interested people we should search for a suiting location.
Do you mean a restaurant ? Really I would have tought we would do a  
barbecue friendshiply and surely we would talk of the future of an open  
phone (as we may do all the weekend) but also of other things but  
without any formality, thus not in group, but enabling people moving  
from one to another.


Restaurant is not a must. Barbecue would be nice if the weather is good.

What I like to see is a date and place where the people could sit together and
talk about it. Not between two other chats, peopling singing, people come and go
every minute and you have to repeat things, etc. I truly believe that you need
some sort of good setting around you to get something done. Personally I hope we
get some things sorted out this weekend and plan for the future. I would be sad
when everything we got done was to know the faces of the other people and drunk
beer.

But hey, I know other people often feel that I make things overcomplicate and
overplan stuff. I can step back, it's not easy but also not a big deal.

regards
Stefan Schmidt

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Re: Three different databases for gsm celltower locations

2009-04-06 Thread Stefan Schmidt
Hello.

On Sat, 2009-04-04 at 02:42, Thomas Landspurg wrote:
 
   The good news is that we are communicating and discussing while
 progressing slowly. With Sebastian of CellHunter, we basically agree that
 Cell Hunter would upload is cells to OpenCellID while maintaining their own
 database for the purpose of the game.

OK

   With Onen one of the idea (in my view, but Onen to confirm ) is that to
 enable a the GPS Logger to be connected to OpenCellID to upload cell
 informations directly.
   Now, the main part remains the positionning of OpenBMap. The main
 difference (in my view) between OpenBMap and OpenCellID is that OpenBMap is
 more focused on getting accuracy for cells , while we (OpenCellID) are more
 concerned about having the biggest and complete coverage.

Having a good coverage is as important as having quality measurements. What is
about these fields in the db to store informations about the quality. Are you
willing to add them?

What about wifi accesspoints? Are you willing to add such things, too?

regards
Stefan Schmidt

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Re: Three different databases for gsm celltower locations

2009-04-06 Thread Stefan Schmidt
Hello.

On Sat, 2009-04-04 at 12:02, Sebastian Hammerl wrote:

 like Thomas said I will submit the data of cellhunter to opencellid  
 while keeping my own db for more game data. So opencellid will be the  
 main source for cell information and I think this is the best solution  
 because it is just the largest db. Congrats to thomas for the huge  
 growths in the last weeks.

Wrote it before. Good coverage is great, but not if we buy this by letting some
quality data and possibilities like wifi APs aside. If this could be added to
openceelid I aggree that openbmpa should merge their db into it and use that one
as basis for the webservices they use.

 At this time I do note have the time to submit the data because I have  
 to finish my master thesis until mid of may. But after that I promise to 
 upload new cellhunter cells periodically.

Please also integrate Jan's patches for newer FSO releases when you reach the
free-time slot. 

 A FSO approach for getting cell information should query opencellid.  
 Perhaps Thomas should think about to transfer the db to a faster server I 
 have some troubles sometimes to reach the site. Perhaps we should set up 
 a mirror at the openmoko servers or something else. But these should be 
 problems for the future.

I think we should prefer a way to have the db on the device itself. Onen gave
some hints why. That of course includes a way to sync new data to the device.

regards
Stefan Schmidt

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Re: Three different databases for gsm celltower locations

2009-04-06 Thread Stefan Schmidt
Hello.

On Sat, 2009-04-04 at 15:24, Onen wrote:

 Sebastian Hammerl wrote:

 I will talk from my part the client code. I know you have little time  
 right now for a collaborating project. But I think we have much better  
 to do than duplicating this aspect. If you would agree on coding on the  
 same soft, we would save a lot of time. I am thinking about  
 internationalisation of the code, etc...

While talking about the client code. Sebastian, what do you think about the idea
to adding wifi AP's to your game concept? Same db, perhaps some a bit different
schema for the game-points.

regards
Stefan Schmidt

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Re: Three different databases for gsm celltower locations

2009-04-06 Thread Stefan Schmidt
Hello.

On Sat, 2009-04-04 at 15:03, Onen wrote:
 Another point is the other signals than GSM. Our initial vision was to  
 build a database of communicating objects, WiFi, Bluetooth, etc...  

Can anybody give me some ideas how BT should be useful here? From what I know
there are very little fixed BT accesspoints around. Likely to be killed by wifi
anyway. I associate with bluetooth something that is mobile itself therefor not
useful to get an idea rom your current location from.

 May be good to add Jan to the thread, as he has started work on the  
 databases?

Jan should be on the ml's already.

regards
Stefan Schmidt

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Re: Three different databases for gsm celltower locations

2009-04-06 Thread Onen

Hi,

Stefan Schmidt wrote:

On Sat, 2009-04-04 at 15:03, Onen wrote:
  
Another point is the other signals than GSM. Our initial vision was to  
build a database of communicating objects, WiFi, Bluetooth, etc...  



Can anybody give me some ideas how BT should be useful here? From what I know
there are very little fixed BT accesspoints around. Likely to be killed by wifi
anyway. I associate with bluetooth something that is mobile itself therefor not
useful to get an idea rom your current location from.

  
Well maybe Bluetooth was not the best example. I wanted to put the 
emphasis that the original idea of openBmap was to get a map of all 
communicating objects (RFID, future things, ...). Nevertheless here are 
some examples of static BT points we may encounter pretty soon:


* some experiments have been carried on in Paris subway about BT beacons 
which help blind people find their ways in the labyrinth. They have a 
special device at the ear, which says where they are, and if they go in 
the wrong direction, etc...


* ad panels in the subway, or on the street, may have bluetooth to 
distribute details to phones


* in Paris, there are BT stations on the street, you can get connected 
to with your phone, and download maps and or details of the area you 
currently are.


A reason why BT may still last over WiFi may be the power needed to have 
BT on in comparison of WiFi, don't you think?


If anybody sees more examples...

Onen


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Re: Three different databases for gsm celltower locations

2009-04-06 Thread Timo Juhani Lindfors
Onen onen...@free.fr writes:
 A reason why BT may still last over WiFi may be the power needed to
 have BT on in comparison of WiFi, don't you think?

What about digital radio broadcasting stations or RDS information from
regular radios?

-Timo


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[FSOSHRUDCON] Call for talks!

2009-04-06 Thread Didier Ptitjes

Hello all,

[So as we spoke with Stefan on IRC, I volunteer to coordinate the effort 
to set up a wonderfull event. This is my first action in this way,  but 
not the last. I won't let you sleep ;)]


This is a reminder to say that we have time for 8x 30mn talks at FSOSHR'09.

Mickey has already set one for sure: freesmartphone.org -- Past, 
Present, Future. I put it as the first talk after the welcome words.


So I'll recall here the subjects proposed on the wiki page. I would like 
you all to add +1 -1 in order that we can determine what you want.


Also please feel free to add your other ideas|desires for talks. What 
could you speak about ? what would you like to hear about ??


 - State of the art talk (what happened and where we are - mickeyl, 
Ainulindale ?)


So it seems that this one is in part filled by the 
freesmartphone.org -- Past, Present, Future of mickeyl. I would be 
glad if Ainulindale could make a similar talk for SHR. Then things would 
be set up correctly for the continuation of the convention


 - SHR vs. Paroli; SHR + Paroli

 - Target Hardware for FSO and SHR

 - FSOd  frameworkd2

Would be cool if Mickey, or another one, can make a talk to address 
the technical details of this, if they are not completely explained in 
Mickey introductory talk about FSO.


The next three are proposition of mine.

 - Ophonekitd's future
* Vala rewrite: what it brings (Modularity, testability, 
configurability, ...)

* DBus GUI control protocols

Ainulindale could make this one

 - Joint FSO/SHR testing proposal
* Using libgmock as a base framework to mock frameworkd or ophonekitd
* Shared sequence diagrams

This is a thing that I feel is very important for both FSO and 
SHR's future. I could talk about that.


 - Ologicd
* Introduction (use cases, solutions survey...)
* Current state
* Flora-2 introduction and demos
* Expected Logic frameworks

This is my baby project. So here again I can present you all those 
stuff.


 - SHR - What a community distribution means

I'll be glad Ainulindale and mrmoku explains us how the process to 
collaborate to the community distro is. How it will evolve as the 
distro gains momentum. What technical facilities are at our disposal...


 Here your other ideas|desire...

Thank you to take the time to think about all that. Best regards,
Didier.




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Re: [Shr-devel] [FSOSHRUDCON] Call for talks!

2009-04-06 Thread Julien Cassignol
snip

As told before, Didier, I'm ok for the talks I'm supposed to be involved in.

-- 
Julien Cassignol
http://www.ainulindale.net

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Re: Three different databases for gsm celltower locations

2009-04-06 Thread Onen

Timo Juhani Lindfors wrote:

Onen onen...@free.fr writes:

A reason why BT may still last over WiFi may be the power needed to
have BT on in comparison of WiFi, don't you think?


What about digital radio broadcasting stations or RDS information from
regular radios?



These are very interesting ideas!

I have no idea how this all works, what is the coverage of a 
broadcasting antenna, and if this is possible to differentiate them 
through the received signal.


Plus we would need a working USB radio receiver.

Onen


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GSM location in FSO

2009-04-06 Thread Onen

Hallo Jan,

I have seen the last commits from you about adding GSM based localisation.

First this is great, that it reaches the framework!

This brings me some questions:

1. This has been especially a surprise to us, as we at openBmap have 
currently been thinking how to bring this to the users. We already did 
some work on exporting the database under SQLite files for every 
country. And on top of this, a small DBus service to bring the 
localisation to everyone...


I am no hacker, but still would have hoped to bring some help on this... 
If you are interested, how would you like to proceed?


2. I had a look at the code, and suppose you are building your database 
out of the data from CellHunter. Am I correct?
I think CellHunter is a great project but we still think that we should 
log HPV-Dops, speed, in order to be able to filter low quality measures. 
This is currently discussed on another thread on this list [1]. If you 
combine a high speed with low Dops, you end up with very unprecise 
positions for building the cells coverage, don't you think?


I would like to know what is your opinion about all of this. Are you 
interested in our approach, and are you interested in taking in 
consideration in your code the extra fields our data contains (Dops, 
speed, software id, software version, etc.) to possibly filter measures 
to keep only higher quality?


Thanks,

Onen

[1] 
http://git.freesmartphone.org/?p=framework.git;a=commit;h=567f3454e19fac756a03ba58a7a3c5e909519780
[2] 
http://projects.linuxtogo.org/pipermail/smartphones-standards/2009-April/000973.html



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