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Two last points as I think I've exhausted suggestions:Thank you. I clicked Event, made sure that I had a camera selected, double clicked on a relevant date, and then hovered around the timeline and found the "Space Rule" option. I clicked that, selected the "Line Crossing" option, drew the line and then clicked Search. The red Time Line marker never moved.
I also tried the same procedure with Motion Detection and Intrusion Detection but still didn't get any results.
The suppliers of my system are also onto my problem and they say they are liasing with Hikvision HQ to try and solve the issue but I am now starting to agree with your opinion in #7 about the quality of this software. I will also have a look for the pdf manual on the Hikvision web site.
Having said that, I have received more help from you and one other on this Forum than I have from anywhere else. Thank you.
1 - Did you try disabling re enabling VCA on each camera as I suggested in post #12 and again in #14? Reading through the posts it seems you disabled/re enabled "Save Camera VCA Data" which is different. There's an option per camera to enable the VCA data to be sent as I showed back in post #2. "Save Camera VCA Data" controls whether the NVR saves what it receives.
2 - Do you have motion detection or line crossing enabled for the cameras? It used to be the case (may not be now) that in order for a VCA search to function, the specific function had to be enabled in the camera. IE you couldn't do a VCA search for motion detection/line crossing if those functions weren't enabled in the event settings. To prove that just enable motion detection full screen for one of the cameras and don't alter any other options. Also set a line crossing alarm across your drive and don't alter any other options. Wait an hour and do a VCA search for motion/line crossing on that camera.
VCA search really should be secondary to pre configuring the events to alert you. Think "someone is stealing my car" vs "who stole my car". My preferred setup is as follows:
- Configure motion detection for each camera with the default options. If the camera doesn't have AcuSense I'll draw the grid/polygon to avoid anything moving - trees etc. It'll do nothing but mark the event playback timeline making it easier to find.
- Configure line crossing for each camera but add the "notify surveillance centre" option. This will also mark the event timeline but send push notifications to a phone.
- VCA search I use to search for motion or a line crossed outside of the area configured above.