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The already mentioned Reset Luminosity after No Detection function
guarantees that, after a switch-off due to the sending of a no-detection, the
device will notify any further detection in any case, even if it has not been
able to verify the updated luminosity value yet. Please see the following
example.
Example: Luminosity Reset.
A light source needs to be turned on or off depending on the motion detection and on
whether it is daytime or night.
Hence, a luminosity detection constrained to a threshold of 30% is configured,
although "Send no detection when the threshold is exceeded" is disabled.
1)
If somebody enters the room at night, the light source will turn on, thus making the
luminosity raise to 70%. Such value will be afterwards measured by the device. As
the device was NOT set to send a "No Detection" after surpassing the threshold,
the light source will remain on.
2)
After a while with no motion, the "No Detection" is sent, which turns the light off.
3)
If motion is again detected immediately after (before the device has had enough
time to detect the darkness), the "Detection" will not be sent to the bus until the
device can check the updated luminosity (see "Luminosity Sending", in 3.1).
To prevent the above situation, it is possible to parameterise a luminosity reset to 0%
after the "No Detection".
Example: Luminosity Reset (delayed).
Let the light source of the above example implement a soft (progressive) switch-off. As
above, the switch-on and the switch-off are required to depend on the motion detection
and on whether there is natural sunlight in the room or not.
Again, a threshold of 30% is configured, without a "No detection" sending after
exceeding the threshold value.
4)
If somebody enters the room at night, the light source will turn on, making the
luminosity raise to 70%. Such value will be afterwards measured by the device. As
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Motion Detector
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