Hi,
Those who owns the DCS 5222L will surely notice this problem with their motion detection. Camera seems to detect it as a motion when the surrounding light flicks on or off. Secondly, when the camera switch to IR & ICR mode, the camera also detects this as motion. I search intensively on many forums including those from US and it does not seem to give me suggestions that work until i figure it out myself.
Firstly, do understand that there are two types of motion detection in the Dcs5222l described below.
"PIR" - detects changes in heat signature
"video motion" - detects pixel changes.
So, if you place the camera outside the corridor where it is lighted at night and receive good daylight, you can consider disabling the IR and ICR so when the camera switches to IR & ICR mode, it wont detect as motion. IR and ICR is required for poor or no lighting condition. This is the main culprit of false motion detection.
You can also disable video motion and use solely PIR instead so it detects changes in heat and not changes in pixels. This solves my problem when the light at the corridor flickers and it will not detect as motion.
Now the only problem left is when my wife cooks heavily and she don't close the main door, heat will escape and my camera detects it as motion.
