[Geowanking] [nycwireless] Wifi Positioning Systems (fwd)
geowanking at highearthorbit.com
Thu Dec 15 19:35:29 PST 2005
Navizon is "peer to peer" , using a blend of wifi, cellular and other
users to 'traingulate'. Runs on PocketPC's. They were "AlwaysOnGPS".
There are a lot of open-databases of wifi-hotspots with location, so
creating a new system would not be that difficult. Large base of
information is already available.
On 12/15/05, Lars Aronsson <lars at aronsson.se> wrote:
> The following just in from the mailing list of New York City
> Wireless (nycwireless.net), a free wi-fi group.
> Lars Aronsson (lars at aronsson.se)
> Aronsson Datateknik - http://aronsson.se
> ---------- Forwarded message ----------
> Date: Thu, 15 Dec 2005 08:53:43 -0800 (PST)
> From: Rob Kelley <robjkelley at yahoo.com>
> To: nycwireless at lists.nycwireless.net
> Subject: [nycwireless] Wifi Positioning Systems
> We've heard that GPS doesn't work well in the city (too many
> skyscrapers, not enough open sky). Wifi-based location tracking seems
> to be an alternative worth considering. The idea is to have the device
> identify (but not necessarily connect) to surrounding access points and
> then determine its location by triangulation.
> A little research has shown a couple wifi efforts. But before checking
> the options, it'd be wise to to formulate a couple requirements from
> the savvy wireless consumer's point of view:
> 1. Open infrastructure, open protocol and open source (no proprietary
> 2. 802.11 but not platform-specific (windows, linux, macintosh)
> 3. Able to have API to build services on top of it ("Wifi positioning
> says I'm here")
> 4. User privacy (user chooses who gets their location information on a
> case by case basis)
> 5. AP owner privacy (respect owner's wishes)
> So what do we have? A quick ''informal'' Google search reveals two
> wide area options (speak up if you know of others):
> ''SkyHook Wireless''
> [http://skyhookwireless.com/ ]
> This Boston firm has press releases all over the place (financing,
> contracts, awards). They used to be QuarterScope. They use a client
> software on PocketPC and Windows Mobile, with something coming out for
> Palm later. They also point to theft identification of stolen laptops.
> They claim to have mapped a network on 1.5 million access points. How?
> Like this:
> [http://www.skyhookwireless.com/scanning/upload.php ]
> [http://www.herecast.com/ ]
> By comparison, check out HereCast. This is a developer community
> working to provide an open infrastructure for wifi positioning. It is
> not a hotspot directory, but simply a directory of access point
> location. The directory is made up by submission.
> It's interesting to see how this space will develop. It seems any
> municipal wifi would do well to consider having a location-based
> service of its own. For example, if Hoboken deployed Access Points on
> each lamp post, the city could then provide simple wifi positioning
> information from them.
ajturner at highearthorbit.com 42.4266N x 83.4931W
http://highearthorbit.com Northville, Michigan, USA
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