D-Link Forums
The Graveyard - Products No Longer Supported => IP Cameras => DCS-5222L => Topic started by: Acumen on July 24, 2013, 02:27:26 PM
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Since I believe the dLink Manual is very poor, I started to experiment a little trying to understand what I was doing. I first created this excel sheet (https://dl.dropboxusercontent.com/u/20804642/dLink_Forum/DLink%20Motion%20Detect%20calculator.xlsx).
(https://dl.dropboxusercontent.com/u/20804642/dLink_Forum/DLink%20Motion%20Detect%20calculator.png)
By "copying" the motion detection area, I can calculate what the 98% sensitivity actually means. I already red somewhere that it's actually 2% motion that will trigger when you enter 98% sensitivity. Since the manual does not tell you anything usefull, I assumed that it is 2% of the motion detection area and not of the whole viewing area.
What I don't know is if:
- it needs (in this example) 7 detection changed at the same time (so the 'object' needs the size of at least 7 detection points)
-or-
- it triggers when 7 detection points are changed without interuption or within a certain time (for example by an object with the size of 2 detection points)
The dots at the lines 18, 15 and 12 are set to fit a car in between. In my experiment, motion is not detected on a passing car, since not al 7 dots are hit. When I add three extra dots at column 18, motion will be detected on a passing car. That should mean that it workes like described in bullet 1.
However, I also had a big fly or something trigger the motion detection at the below area (before I added the experimental detection points).
So since dLink does not explain the behavior in its manual, I hope to answer the question (with your help) in this topic and maybe it could become a FAQ topic ;D
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Great work.
I was always confused with DLINK's example in the right hand side, which proves they don't know. (At least on 2132l, 2230, and maybe the original 5222L firmware).. One or 2 of them uses 50% as an example. Total cop-out.
the 1.01 f/w on 5222L says "Sensitivity - Set the sensitivity of camera to trigger motion detection. High sensitivity makes the motions easier to be detected."
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Are you seeing different behavior for motion capture between day and night mode. If I get it working for day light it goes crazy at night. If I get it working at night, it takes no pictures during daylight. Other than of course the annoying dusk transition from one to the other.
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This is because the video image has a lot of noise at night time, and much less noise during the daytime. :-\
What really needs to happen is the ability to set different sensitivity levels for day and night modes for motion detection. :-(