Thread: Any interest in a lojack-like app for Maemo?
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mwiktowy is offline mwiktowy
2008-06-05 , 01:51
Posts: 373 | Thanked: 56 times | Joined on Dec 2005 @ Ottawa, ON
#49
Originally Posted by kernelpanic View Post
Hello All,

mwiktowy- Way ahead of you. Had already thought and discussed most of this.

...

2. Attempt GPS connection ~every 30 minutes, but if it doesn't get at least 2 satellites within 3 minutes assume it's indoors and shut off. If it gets a connection, keep the track until it goes indoors. i.e. if it loses fix for 3 min. kill it and try later. My experience is that with the GPS on/screen off and a full battery it can still run for 6-8 hours. This'll be far less of an issue with aGPS. (Also do something similar with wireless IAPs and possibly bluetooth. It only takes a couple of seconds to get all available APs via libconic. This could give a rough fix for devices without GPS like the n800.
Figured as much :]

I wonder what the difference in power draw is between keeping the GPS on vs. turning it off and on periodically (and forcing it to do more computing to update its position). I haven't done any investigations but from my limited use of the GPS, it isn't a huge power drain as it is a just passive (but really accurate) receiver of a time signal

I am having trouble with something draining my battery too quickly (clobbered metacrawler and fixed flash fs corruption but it didn't help) right now so any valid tests will have to wait until I have a clean Diablo slate.