Dahua P5AE-PV

[alessi89]

Hello guys, I'm facing with the following issue:

I've setup a wireless dahua P5AE-PV with SDcard (to store snapshot) and connected to NVR-5208-ei.
I've setup some IVS rules (disabling MD/SMD)
I've correctly setup the scheduling time to 24/7 (both for snapshot and recording)

All should be ok, in fact sometimes it works - BUT:

1- Some times in DMSS app arrives events with no snapshot (lock icon instead - see pic). When I tap on it, to see the recording, video is not fluent, lags, and missing frames.
2- For the same events in the meantime, in the playback (smartPSS or any other dahua sw) I see "black holes".. see attached video. This is a serious problem because I can say "ok no icon attached.. no problem, just see the recording" but the recording itself is corrupted.

Has anyone had the same problem?

 

[bigredfish]

First, it appears to be a "do everything" wireless piece of garbage, but beyond that:

It seems the dead space is actually a separate IVS clip (IVS and full time are separate video clips spliced together on Dahua equipment)

There seems to be some problem with the 2nd IVS activation clip being locked (so its not overwritten/lost). I'm not sure how thats done on the camera, its a feature after the fact on the NVR

It would be interesting to see the same video capture of the event at approx 11:38 where the clip BEFORE the shown IVS activation is empty and locked as well

 

[alessi89]

This is the video at 11:38 (approx) - As you can see, person appear in the IVS zone and does not trigger the event.
Look at playbeck when the cursor falls into the orange part.. is not fluent and does not represent significant event.

 

[wittaj]

Camera is too high to reliably trigger.

The AI was trained based on more of a straight on view and not a top of head view.

 

[alessi89]

Camera is too high to reliably trigger.

The AI was trained based on more of a straight on view and not a top of head view.

I know - this is the reason why I set multiple IVS rules in the left area of the image. Even if it's not perfect I do not understand the strange recording behavior.

 

[bigredfish]

Yeah agree with @wittaj that triggering will be hit and miss at that height/angle, but the gaps in recording dont make sense.
The recording gap is almost exactly 50 seconds on both clips....

What does you recording schedule look like?

 

[alessi89]

all schedule set to 24/7
All IVS rules are set to save both snapshot and record

 

[bigredfish]

Are you recording to an NVR as well as events on the camera SD card? Sorry if I missed that

 

[alessi89]

with this configuration I suppose to record all on NVR. And only event's snapshot on SDcard. I'm little bit confused about this but with this configuration, if just one IVS rule is triggered, all the system works as expected (correct playback, correct notification, correct snapshot)
If more than one IVS is triggered simultaneously, camera will fall into a kind of "crazy state" (missing frames, missing trigger...)

 

[bigredfish]

Ok that sounds like it just doesn’t have the juice to keep up with multiple triggers in a short period of time.

So if you delete or disable the other rules and just have one it works ok?

Or try disabling/removing the sd card. They can introduce weird behavior sometimes

 

[alessi89]

So if you delete or disable the other rules and just have one it works ok?

I've just setup it yesterday and seems to work, only "appear IVS" on the left, and "tripwire IVS"on the right (near the car)
I should perform another test with 2 person violating simultaneously the two IVS rules and check what happen.

 

[bigredfish]

I guess you could.

I would try disabling the SD card first