isn't more data always preferable? you could still decide not to use them... cells that we are connected to would recieve a higher "precision" off course,
but if I walk five times around in a city, and I never get connected to a certain cell, but I know a lot of points where that cell is in range, and a lot of points where it isn't? I don't find it impossible that one could distill some information from this. And even a precision of 30km or more helps the assisted gps from ublox; so neighbouring cells can certainly be of some help, don't you agree? y On Fri, Feb 20, 2009 at 2:42 PM, <[email protected]> wrote: > For the moment our position is: > > We log the cell ids we get connected to. > > We do not log the neighbour cells. The reason is: if we are far from the > cells, > we will (maybe, this needs experimentation to my point of view) see the cells > even very far. I fear that it would stretch the areas, and thus decrease the > precision, nullifying the benefit of recording those additional cells. > > But, my idea, is to use the neighbour cells, to detect the overlapping region > among areas of cells I currently see, to improve the precision. > > Any comments? > > Onen > > > Quoting Yorick Moko <[email protected]>: > >> excuse me for the spam, but just thought of something else: >> do you guys also log information about neighbouring cells, like cellhunter >> does? >> this might also be interesting when you have gps coordinates >> the accuracy of the neighbouring cells are much lower ofcourse, but >> could also provide some very usefull info >> y >> >> On Fri, Feb 20, 2009 at 2:22 PM, Yorick Moko <[email protected]> wrote: >> > And are you guys aware of cellhunter? >> > http://wiki.openmoko.org/wiki/CellHunter >> > http://78.47.116.33/~hole/cellhunter/ >> > >> > you could work together, and maybe also incorporate the "game" concept >> > for those interested >> > >> > y >> > >> > On Fri, Feb 20, 2009 at 2:16 PM, Yorick Moko <[email protected]> wrote: >> >> Maybe this can help a bit: >> >> http://www.sites.bipt.be/indexfr1.html >> >> (click on the first blue link) >> >> >> >> it wil display a map of belgium, with all cell towers (already built >> >> and those with a building permission) >> >> if you click on a dot, you can get a pdf with information about who >> >> owns the tower, where it it placed, how many antenna's are on it and a >> >> lot of other irrelevant data >> >> too bad that as far as i can see the cellID is not included in the >> >> documentation :( >> >> >> >> y >> >> >> >> On Fri, Feb 20, 2009 at 1:49 PM, kimaidou <[email protected]> wrote: >> >>> Hi, you said >> >>> >> >>>> So it should be ok for openbmap guys. That could explain the thing >> >>>> about "merging" both databases. Any "official" insight on this? I've >> >>>> been collecting cell information for a few weeks, with some home-made >> >>>> script, and I'd like to know where I should commit them to. >> >>>> >> >>> >> >>> Could you please make a wiki page and put + explain your script for doing >> >>> that ? I think we can go very fast if anyone can use them (thinking about >> >>> how openstreetmap extends..) >> >>> >> >>> Thanks in advance >> >>> >> >>> _______________________________________________ >> >>> Openmoko community mailing list >> >>> [email protected] >> >>> http://lists.openmoko.org/mailman/listinfo/community >> >>> >> >>> >> >> >> > >> >> _______________________________________________ >> Openmoko community mailing list >> [email protected] >> http://lists.openmoko.org/mailman/listinfo/community >> > > > > _______________________________________________ > Openmoko community mailing list > [email protected] > http://lists.openmoko.org/mailman/listinfo/community > _______________________________________________ Openmoko community mailing list [email protected] http://lists.openmoko.org/mailman/listinfo/community
