With OSMAnds (relatively) new feature to turn the screen on (for a few seconds only) when there is a bifurcation ahead, I have observed quite moderate battery consumption - about a few percents per hour.
'Xavier' via OsmAnd <osmand@googlegroups.com> schrieb am So., 29. März 2020, 05:05: > On Sat, Mar 28, 2020 at 05:42:26PM -0400, Stefan Monnier wrote: > >> With power usage, do you believe that > >> > >> osmand running gps receiver, displaying where you are and navigating > >> along an already calculated route > >> > >> takes significantly more power than > >> > >> osmand running gps receiver and displaying where you are > > > >I don't know. Putting my software developer hat, I'd guess that the > >difference is fairly small. And I'm pretty sure that the GPS receiver > >power is negligible in this scenario. > > Actually, no, GPS power consumption is not negligable in most real > world senarios. > > See https://www.usenix.org/legacy/event/atc10/tech/full_papers/Carroll.pdf > > In their tests, the found the GPS module responsible for 143.1mW of > power consumption (Table 5, pg. 7) on its internal antenna. While the > display backlight [1] ranged from a minimum of 7.8mW to a maximum of > 414mW, with 75mW used by the display when set to center scale on the UI > brightness slider. > > So, depending upon one's selected display brightness setting, the GPS > receiver can range anywere from 18.3x more power than the backlight to > 0.346x of the backlight, with 'center scale' brightness placing the GPS > chip at just about 2x the power of the backlight. > > So the GPS chip is hardly a /negligible/ power consumer based upon the > results of this study. > > > > [1] the display backlight is often quoted as the "largest power > consumer", therefore all the common advice to use as low a brightness > level as possible and to keep it off as much as possible. > > -- > You received this message because you are subscribed to the Google Groups > "OsmAnd" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to osmand+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/osmand/20200329030550.GQ7569%40d820.dp100.com > . > -- You received this message because you are subscribed to the Google Groups "OsmAnd" group. To unsubscribe from this group and stop receiving emails from it, send an email to osmand+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/osmand/CA%2BCgGZQZHRLG1KutF%2BrMEJAhwrufBEPU_bS10%3D3ukfGbVLxx5w%40mail.gmail.com.
