http://groklab.org/handhygiene/2010/01/11/door-minder-battery-life/ Just another Groklab.org weblog Mon, 28 Nov 2011 02:43:21 +0000 hourly 1 http://wordpress.org/?v=3.3.1 http://groklab.org/handhygiene/2010/01/11/door-minder-battery-life/comment-page-1/#comment-109 gscranton Tue, 12 Jan 2010 19:56:53 +0000 http://groklab.org/handhygiene/?p=477#comment-109 Further analysis of the data shows that about 20 minutes before the batteries run out, it begins to broadcast nonexistent events, possibly because the beam is becoming weak. The number of disruptions of the beam during the test should also be noted, in this case about 6300. Further analysis of the data shows that about 20 minutes before the batteries run out, it begins to broadcast nonexistent events, possibly because the beam is becoming weak. The number of disruptions of the beam during the test should also be noted, in this case about 6300.

]]> http://groklab.org/handhygiene/2010/01/11/door-minder-battery-life/comment-page-1/#comment-108 gscranton Tue, 12 Jan 2010 18:45:25 +0000 http://groklab.org/handhygiene/?p=477#comment-108 It should be 28 hours. There was one point where the motes shifted positions so that the beam was not making contact between them. This corresponds to the period in the data file when the motes were only sending the heartbeat signals, and not telling when the beam was being interrupted. When I noticed this, I corrected their positions. -Gregg It should be 28 hours. There was one point where the motes shifted positions so that the beam was not making contact between them. This corresponds to the period in the data file when the motes were only sending the heartbeat signals, and not telling when the beam was being interrupted. When I noticed this, I corrected their positions.
-Gregg

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