On Wed, Apr 27, 2011 at 7:25 PM, Naman Muley <naman.g.mu...@gmail.com>wrote:
> > > On Wed, Apr 27, 2011 at 4:33 PM, Vitor Boschi <vitorbos...@gmail.com>wrote: > >> Actually, Google can use information about which wifi access >> points (and/or cell towers in case of mobile phones) your computer see and >> provide a very precise location guess based on this. You could try this >> method too. > > > Correct. But again, google does it globally. I am asking for a local map. > Because Google can't get into my sub-routers. Most of the campuses > now-a-days are hidden behing NATs. Google shall not be able to map same > location for all people inside that network. My own insititute is a classic > example. Moreover, the point still remains, that if I am in my university > campus or my Company campus, or to put it generally, in a LAN, I am more > interested in finding locations of people on my LAN, *inside the LAN* only > and not globally like Google Latitude. For e.g. a very practical example is, > If I am in the library and I want to ask a doubt that I have regarding a > concept to my senior, I will need his relative location e.g, is he/she in > the hostel, in the library itself or not; coming to know that it is in the > same institute (Google latitude output) is of really no use. > > The method that Vitor pointed out is the one I want to use. As I had > explained in the IBM example, if the security guard is 12 mts away from the > WAP at the main gate, I can obtain this information. Though I doubt Google > uses cellphone towers, I shoudn't think google has access to telephone > resources as they are contracted. The telephone base stations are contracted > by telephone service providers and do not relay free information. Vitor, the > hexagonal cells based method is used currently in the cellphone system. I > think for cell-phones, Google uses GPS and Wifi. If you really think, its > one of the research areas of wireless ad-hoc networks, to adopt this > hexagonal cells implementation in the ad-hoc computer network. > > Overall, WAPs / Routers etc are the main components of LAN architecture. A > combination of these is generally used to create the wifi infrastructure of > campuses. Using Reverse DNS methods for wired, and location estimation using > signal strength from WAPs for wireless are the Ace methods through which I > am imagining the application to work. > > I may be wrong in my summary, please correct me. > > -Naman > >> >> Vitor >> >> >> On Wed, Apr 27, 2011 at 1:20 AM, Naman Muley <naman.g.mu...@gmail.com>wrote: >> >>> >>> >>> On Wed, Apr 27, 2011 at 9:10 AM, Rohan Garg <rohang...@ubuntu.com>wrote: >>> >>>> Hi Naman >>>> >>> Hi Rohan, >>> >>>> Actually, Google has a bunch of methods to extract your current >>>> location, and for desktops, it works best using the IP assigned to your >>>> computer ( since most PC's don't have a GPS module ). >>>> >>> Yeah, and they become pretty lame when trying to work to find out the >>> location inside a campus. This is exactly what I want to make. Google >>> Latitude can get your location exactly only unto your ISP router. That is >>> why they have kept 3 granularity levels i think, country city or something. >>> (I tried it some time back). Basically it shows the location of your ISP >>> router and not your own location. But I am talking about local mapping like >>> inside a campus. Plus, right now, I am in DA-IICT, Gandhinagar, India. >>> DA-IICT has a NAT. Everything we do, any of us, we do by the NAT address( >>> which currently is 117.211.88.42) . This will restrict the granularity of my >>> location to only m y NAT address. I want to find my locaiton inside the >>> campus. For that I use pretty much the same method that Google Latitude >>> uses, but on the internal architecture of my campus. ( For e.g. DA-IICT has >>> 4 main routers, hostel, faculty, library and Lab). consisting of routers and >>> sub-routers. >>> >>> Rohan Garg >>> >>> Yours, >>> Naman >>> >>>> On Apr 27, 2011 3:43 AM, "Naman Muley" <naman.g.mu...@gmail.com> wrote: >>>> > HI Valentin, >>>> > >>>> > On Tue, Apr 26, 2011 at 11:58 PM, Valentin Rusu <k...@rusu.info> >>>> wrote: >>>> > >>>> >> Hello, >>>> >> >>>> >> On 04/26/2011 01:15 PM, Naman Muley wrote: >>>> >> > Overall, if you have seen Harry Potter - The Prisoner of Azkaban , >>>> I >>>> >> > am talking about 'The Marauder's Map'. >>>> >> Have you seen this before ? >>>> >> http://www.google.com/intl/en_us/latitude/intro.html >>>> >> >>>> >> Yes I have. Google latitude is again a global system. It reads your >>>> > latitude and longitude and puts you in that location. I am talking >>>> about >>>> > making a localized application. I am thinking on how to get location >>>> without >>>> > the GPS. One of the ways is that I map not on a map but an abstract >>>> floor >>>> > and label routers by the name of the location. For e.g. John's cubicle >>>> is >>>> > connected to the router finance.ibm.com. along with 5 other people in >>>> the >>>> > finance department. Then, based on the topology that router is >>>> connected to >>>> > its nodes, one should be able to give a bacground-less map. >>>> > finance.ibm.comis then connected to say >>>> >>>> > security.ibm.com which is a WAP. The security guard's phone, based on >>>> the >>>> > signal strength it receives should be able to create a radius of a >>>> > particular distance around the WAP. The point is, if i am an employee >>>> of >>>> > the HQ of IBM, I dont need to visually see on a physical map where the >>>> other >>>> > person is. If I am told that he is 12 mts away from the Main Gate >>>> (where the >>>> > WAP is) that is enough for my purposes.I dont have to see visually >>>> where he >>>> > is roaming. I don't know if i have convinced you of the method. PLease >>>> reply >>>> > with further points. >>>> > >>>> > Valentin >>>> >> >>>> >> >>>> >> >> Visit http://mail.kde.org/mailman/listinfo/kde-devel#unsub to >>>> >> unsubscribe << >>>> >> >>>> > >>>> > yours Thinkingly, >>>> > Naman >>>> >>>> >>>> >> Visit http://mail.kde.org/mailman/listinfo/kde-devel#unsub to >>>> unsubscribe << >>>> >>>> >>> >>> >>> >> Visit http://mail.kde.org/mailman/listinfo/kde-devel#unsub to >>> unsubscribe << >>> >>> >> >> >> >> Visit http://mail.kde.org/mailman/listinfo/kde-devel#unsub to >> unsubscribe << >> >> >
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