Enabling Motion detection results in 'invalid operation' error

[juryman77]

Hi

I have a DS-7608NI-I2, with 8 cameras. I'm trying to cut down on the bandwidth used for the older cameras (generic onvif 2mp cameras, h264, from zxtech or something about 4 years ago) as I slowly replace with hikvision cameras and h265+ etc.

The issue I have is that on the hikvision cameras, I can enable motion detection (and in turn, disable 24/7 recording) no problem. On the older cameras, when I click the tickbox for "enable motion detection" for that camera, I get an error in the bottom right corner of the screen 'invalid operation'. Now at first, I thought this was just limited to the generic ONVIF cameras and perhaps motion detection was only supported on Hikvision stuff, but it's not - because on one newer camera (4mp, still generic but still not hikvision) it does work.

The only thing I can think of is that the (slightly) newer ONVIF camera is outputting H265 not H264, as are the Hikvisions. Leaving just the H264 cameras not working with motion detection.

Have I missed the point somewhere and motion detection is done *in camera* and my older cameras don't support it, or is it as simple as the NVR doesn't support motion detection on H264 streams?

Thanks!
Ross

 

[juryman77]

To answer my own question, for anyone else searching for this in years to come...
It turns out motion detection is done in camera and a motion detection 'signal' is sent from the camera to the NVR to trigger recording/alarm status etc.

I discovered this by logging into the (non-hikvision) camera directly, then using the configuration settings in the NVR itself, disabling and enabling the status of 'motion detection' - the toggle in the camera interface itself changes as I change it in the NVR, indicating that the camera is what's responsible for detecting motion detection.

That explains it, and explains why my older cameras don't work with motion detection - perhaps an older ONVIF standard etc. Either way, nothing to do with H264, so that's a red-herring

Cheers all.

 

[fullboogie]

Probably a common misunderstanding. I sure didn't understand it when I first built my system. I though the cameras were dumb and the NVR handled all the smart stuff. Turns out I was wrong.