gps

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purpse,

where do you get 1,5m accuracy with GPS using civil equipment? I rarely get the 15m

My HTC Wildfire seems to hit me right on the head each time... while outside... in an open parking lot. Well... it hit me right on the head in London, ducked behind tall buildings too. And while moving at 100 km/h by train. I must have the military version

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Anyway, I guess a starting point would be Wikipedia: http://en.wikipedia.org/wiki/Indoor_positioning_system and there's a lot to read there.

[Marie.O]

Turn of GPS-A and your head will be save.

[davegravy]

I wonder if there is a way to "fine tune" the range by shielding the dongle in some way?

Most definitely. It's called a Faraday cage, and you could construct one around each room to contain its local bluetooth signal.

Oh wait, you wanted a *practical* solution... 

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From a theoretical point of view, at one point I wanted to know about a GPS-like solution where you put your own "satellites" around your house, say... one in each corner of each room... 4 per room if your rooms are shaped like a regular upright parallelepiped. I haven't quite found an answer, but somehow I know an amateur radio-electro-geek could build a HPS (Home Positioning System) with stuff from Radio Shack. It can double up as a GPS jamming device if you use the same frequencies, and enough power and error correction to overcome the HPS jamming signal coming down from orbit.

[Techstyle]

seeing as we are looking at options that are 'outside the box' you could set yourself on fire and use a 1-wire temperature sensor to detect you presence.

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seeing as we are looking at options that are 'outside the box' you could set yourself on fire and use a 1-wire temperature sensor to detect you presence.

We need a Slashdot style "Funny" button

[purps]

seeing as we are looking at options that are 'outside the box' you could set yourself on fire and use a 1-wire temperature sensor to detect you presence.

Lawl. Motion sensors combined with the continuous waving of your arms might be less painful. At least in the short-term.

[Marie.O]

It is quite obvious, that all you need is a kinect in every room, which has learned all occupants of the house, and LinuxMCE is using it for follow me.

[locutus]

could you use wifi antennas at each corner of house and triangulate your phones position?

[bongowongo]

It is quite obvious, that all you need is a kinect in every room, which has learned all occupants of the house, and LinuxMCE is using it for follow me.

How feasible is this?

[purps]

http://nitrogen.posterous.com/home-automation-and-lighting-control-with-kin

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If your house is full of iPods, iPhones, and so forth, here's something interesting from Slashdot today: http://apple.slashdot.org/story/11/11/13/1841204/ios-app-acoustically-measures-distances-up-to-25-meters

As is customary with Slashdot, I haven't read the article, so it may not even be on topic