Constant recording with motion detection and smooth live viewing and playback

Railgun

n3wb
Jan 15, 2020
10
2
UK
I think I've run across threads here before with respect to the above, and the performance issues that may be related when trying to do both. What I'm trying to accomplish is, simply, the title. I have (all Hikvision) 2CD2786G2s, an 85G0, a 2DE4A425IW and a KD8003 intercom. All record constantly to a DS-7716NXI-I4 / S to two 8TB WD purples. I have the recordings split across the two, though I don't recall specifically how at the moment. All cameras are set to maximum frame/bitrates.

Normal recording is fine, but it seems the NVR just can't handle that and motion detection events. I assume that said events get their own separate recording, which I don't need. I just want the marker for the event. With motion detection enabled, even live viewing gets a little iffy.

The cameras are fine, and at some point, I may add one or two, and possibly upgrade the PTZ to something better, but ultimately I need a more powerful NVR at a guess. I'm not opposed to rolling my own and I have enough spare hardware at my disposal, including a 32 core Zen3 VM host. Though I do like the idea of simply swapping the existing NVR out for something more up to date.

There's nothing else the NVR is configured for in terms of features, which seems to be somewhat pointless, but the playback performance I've had in the past with constant and motion recording enabled just wasn't cutting it.

Though irrelevant, I'm sure I'll get the why am I doing it this way, because I want to be notified of more pertinent events on/around the property, but still have the ability to see what's up with non-triggered events.

So, is there an appropriate NVR to get off the shelf in this context, or is it a roll my own scenario?
 
Hopefully an HiK guy will stop by...

What exactly is the problem?
Can you show us a video example of the problem?

Based on my experience with NVR's this doesnt make sense.
Normal recording is fine, but it seems the NVR just can't handle that and motion detection events...
I just want the marker for the event. With motion detection enabled, even live viewing gets a little iffy.


I would guess its more a configuration issue than a capability issue
While I'm not an HiK expert, typically the recording effort is the same full or motion, its simply a separate file.
I’d have to test but I don’t see how to get a hash mark on the recording timeline fir an event if there’s no recording ..

Are you really using Motion Detection in 2025? Must get a buttload of false alerts?
AI by camera would be a much better solution, tripwires etc and far fewer false alerts. MD is basically 2010 pixel based technology

You say the NVR isnt doing any AI or other work besides recording? Thats good if you're sure, but you may want to check as any AI enabled on the NVR typically cuts bandwidth by 1/2

 
Are you really using Motion Detection in 2025?
How pretentious of you.

100% no other feature is enabled. I’d need to re-enable said MD but really no need to share for obvious reasons, but appreciate it’s difficult to see what I'm referring to otherwise. The issue more specifically is choppy playback. Sometimes the inability to playback at all. Often playback will play for a few seconds or so and toss an error that it’s unable to playback. Else, extremely pixelated moving images from time to time as well. Seems no difference whether recording at h.264 or 265. I don’t use their h.265+ “feature.”

The notion of saying motion detection in and of itself is a bit resource intensive would have sufficed.

I shall leverage the "AI" features instead and see whether there's any improvement.
 
  • Wow
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