jamescollings wrote:OK.. sorry that i haven't sent you the excel spreadsheet... I will get on to that in the next couple of days (poor excuse, I know, but I will do it).
in the meantime. I notice that you are running this image at 10fps (and then 30fps for an alarm).
Could you just cycle through the frames of an alarm event, and just check the timestamp on each frame? Ideally, you should have to click through at least 10 to get the clock to move from one second to another. If you don't, then I wonder if your system is dropping frames?
Alternatively, you might be running so many frames that the changes between each frame is miniscule, and therefore it isn't triggering an alarm.
I tend to run at 4fps (both in normal mode and alarm mode).
It has to be said.... the only way to Fine-tune your monitor settings is to be in a situation whereby you have TOO MANY events (false alarms). If you are in a position where you are MISSING events (true alarms), then there aren't going to be any statistics recorded from which to work out WHY!
Also, you have your "reference Blend Image" set at 2%. I must admit, to not really understanding the impact that changing this has for alarms, so I have chosen to leave mine at the default of 10, and using the zone configuration to fine tune things.
Just a couple of ideas!
Okay, have a look here:

The maximum frame rate the system reaches per channel is 4.21. I am using a 77-type one-chip card with 4 inputs. This is the actual value both in monitor and alarm state.
The settings 'Maximum FPS' and 'Alarm Maximum FPS' are there, however they don't matter as they set maximum values while the card cannot give more, so they are fine.
I cycled some pictures, the second changes at 4 or 5 frames so I guess that's just fine. The machine load is not more that 0.50 usually.
Regarding the 'Reference Image Blend %ge' - if I set it higher, I hardly get events at all, not to talk about real events. I had it at 7, and now down to 2, when I finally made it get at least some.
Actually I have lots of events, about a hundred a day. But they all are false, and none real. I can look at the live picture, see a car passing by without triggering the alarm! But I get tens of false alarms each hour like the picture above.