Accelerometer brainstorming

[Crane, Matthew]

Thanks.  This package's guts might work as a starting point for gesture
recognition.   Prob some other fos out there sw does similar things.  
 
http://www.risujin.org/cellwriter
 
 
________________________________

From: community-bounces at lists.openmoko.org
[mailto:community-bounces at lists.openmoko.org] On Behalf Of Kyle Bassett
Sent: Monday, March 31, 2008 1:25 PM
To: List for Openmoko community discussion
Subject: Re: Accelerometer brainstorming


I think your examples are very possible.  "Kind of reaching" would be
something like trying to detect the type of jacket the person is wearing
based on how much the fibers stretch during each step...or whether their
jacket is open, by measuring the horizontal swinging motion.  If the
acceleration curve is very crisp, then the phone is prolly in their pant
pocket.  ;-)  but I still say these things are not *impossible*, just
require some very intuitive software.

-Kyle



On Fri, Mar 28, 2008 at 12:59 PM, Crane, Matthew <mcrane03 at harris.com>
wrote:



	* I mentioned this in another thread, but if the device:
	       - goes from 60km+ to 0 in short order, e.g. high g stop
	       - while traveling horizontally
	       - over a road
	       - an on-screen alert/countdown is not stoped
	Then it's likely a vehicular accident so auto-call/sms for help
with
	some kind of countdown to disable.  Only really possible to do
that with
	a phone + GPS + acell.
	
	* Sense when the owner is in a car by keying on the vibration
signature
	and acceleration, possibly with gps data, and automatically
bring up the
	assigned travel/map application.
	
	* Use acell data to charecterize person carrying the phone (as
many
	couples out there will share phones, or give to children) and
tie into
	user profile.
	
	* Detect when phone has dropped out of ones pocket, short fall
by aprupt
	stop, beep three times loudly.  (that's kind of reaching..)
	
	Matt
	


	-----Original Message-----
	From: community-bounces at lists.openmoko.org
	[mailto:community-bounces at lists.openmoko.org] On Behalf Of
Alexey
	Feldgendler
	Sent: Friday, March 28, 2008 9:22 AM
	To: List for OpenMoko community discussion
	Subject: Accelerometer brainstorming
	
	
	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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