Stuck Alarm

[mycal]

I'm getting stuck alarms recodings on one of my systems. The below is an example of a frame that detects motion even though there is nothing there, it will continue to stick until something moves into the red region on the door to unstick it. This frame is a repeate of about 2000 frames, all marked motion detected.





Any idea here what I can try?

Thanks,

mycal

PS. there was motion at this region, but at the begining of the capture. This frame was long in the future after the motion.

[zoneminder]

I have only seen this kind of behaviour when you have a very low reference blend percentage set, maybe under 4% and reasonably sensitive detection settings. In that case with some images rounding effects mean that the background is never truely merged with an image (though very nearly so) so you get very small differences even when the image never changes. If you have sensitive detection settings these differences are picked up as motion.

[mycal]

I've tried changing the

Reference Image Blend up to 25%

Minimum Alarmed Area to 5

Minimum Filtered Area to 5

This is on "filtered pixal type" Though on Blobs I get the same results.

The cameras work fine, then then get stuck, randomly. Even changing the paramters seems to make no difference.

Is there a possibility there are some stuck files on the HD or some other problem. The database checks out with the mysql check.

FYI I have almost the same setup with an old version of 1.19.5 that works flawlessly.

Should I just try updating zoneminder to a different version? Or should I try something else?

thanks,

mycal

[zoneminder]

Do you know if you have ZM_BLEND_ALARMED_IMAGES on or off?

[zoneminder]

Also, what pixel threshold do you have set?

[mycal]

Just using stock pixal thesholds of 25, 0 for min and max, should I change this?
Using 5,75 for min max alarmed area.

Using 5,75 for min filtered aread.

Currently ZM_BLEND_ALARMED_IMAGES is unchecked.

And finally Reference Image Blend is set to 15%

thanks,

mike

[zoneminder]

Try with blen alarmed images set to on and see if that makes any difference.

[mycal]

You said:
blen alarmed images set to on

---

I though I tried this, but tried it again and so far so good no stuck alarmes in a few days!

Thanks,

mike

[zoneminder]

Good, I had run out of ideas anyway

[jameswilson]

just a slight tangent? Woudl it be possible to have a non-movement alarm, ie if something was introduced into an area and not removed with say 15 mins it would alarm?

[zoneminder]

This is something I have ben thinking about for a while. I think it's a new function, so instead of Modect it would be Difdect or something. I've gotta think of a better name for it though

[jameswilson]

lol i like the fact that the hardest bit for you is deciding on the name for it..not actually writing it in!!!