Accelerometer brainstorming

Peter Kraker peter.kraker at volja.net
Fri Mar 28 19:09:14 CET 2008


Unfortunately you need accurate speed to be able to get usable data from 
accelerometers for that. That's why some GPS modules have an interface 
for tachometer.

Joseph Reeves pravi:
> To join this post and your previous post, how about using the
> accelerometers to enhance the GPS?
>
> Not just for power saving, but say you drive through a tunnel; the GOS
> loses connectivity but the device still knows your location based on
> accelerometer data. There are commercially available in car navigation
> systems that already employ this technology.
>
> Joseph
>
>
>
> On 28/03/2008, Alexey Feldgendler <alexey at feldgendler.ru> wrote:
>   
>> Just like my recent post about using GPS to enhance the phone, I'll try to
>>  explore the synergy opportunities for the accelerometers that Neo has.
>>  Once again, some of this might have already been discussed.
>>
>>  * Intuitive mute: put the ringing phone on a flat horizontal surface
>>  (table) with its screen facing down to stop the ringing. Intuitive for the
>>  user and easy to detect with the accelerometers. Could also be used to
>>  hang up the current call. The gesture is very distinguishable and is hard
>>  to misinterpret because there aren't many situations when the user would
>>  normally put the phone on the table screen down.
>>
>>  * Vibration control: when the phone is lying flat, either with its screen
>>  up or down, don't vibrate, so as to not produce the annoying loud noise.
>>  Ring instead, or do something else. Maybe make a weaker vibration, if the
>>  vibrator can do that.
>>
>>  * Step counter: use the accelerometers to count steps when walking or
>>  running. Some people use dedicated devices for that.
>>
>>  * GPS power saving: you can't move if you don't accelerate, so don't do
>>  power-expensive location detection until acceleration is detected. Once
>>  it's detected, start monitoring the location and keep doing it. Stop
>>  monitoring once the position stops changing for a while.
>>
>>
>>
>>  --
>>  Alexey Feldgendler <alexey at feldgendler.ru>
>>  [ICQ: 115226275] http://feldgendler.livejournal.com
>>
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>>
>>     
>
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