- Dec 14, 2015
- 8
- 2
Hi,
I've just received a Hikvision DS-9632NI-I8, running V4.22.005 build 191208. It is supposed to have a 320 Mbps input with no RAID.
I've got one DS-2CD2085G1-I 4k camera, 3 x 2MP cameras and 1 x 3MP camera.
The 4k is in the backyard, where there are some trees where leaves move in the wind. I have set the camera to 10 fps, and the bandwidth somewhere between 8192 and 16384. But even with H.265+, when there's no wind, the bandwidth of the camera is crazy-low. But with the least little wind, maybe 20% of the scene has moving leaves. This makes the bandwidth exceed the 8-16K I set it for.
The NVR will say "bitrate limit exceeded", with a black screen. But that confuses me, I do see the camera hitting over 16384 but why does the camera go black on the NVR? Shouldn't it downgrade the resolution or something to keep the bandwidth low? What good does setting the limits on the bitrate in the camera or NVR do if it goes higher when it needs to and then can't be recorded or viewed?
This happens even if I set the FPS down to 1 FPS.
Is this just telling me an 4K camera should not be used outside?
I just loaded the latest camera firmware (2 months newer than the current one), so we'll see how it goes.
If the NVR really can do 320 Mbps, I should be able to record live video with 4 of the 4K cameras at 10-15 FPS all day with no issue. Is this an issue with H.265+? I'd not think so, as i tried with H.264 first, and it does the same thing...exceeds whatever bitrate I set no matter the FPS.
As far as networking goes, the cameras and NVR are on a separate VLAN on Juniper switches. The ports are 1G PoE and are working as expected with no errors.
Is there no "display total incoming bitrate" screen on the NVR anywhere?
Thanks,
Ambi
I've just received a Hikvision DS-9632NI-I8, running V4.22.005 build 191208. It is supposed to have a 320 Mbps input with no RAID.
I've got one DS-2CD2085G1-I 4k camera, 3 x 2MP cameras and 1 x 3MP camera.
The 4k is in the backyard, where there are some trees where leaves move in the wind. I have set the camera to 10 fps, and the bandwidth somewhere between 8192 and 16384. But even with H.265+, when there's no wind, the bandwidth of the camera is crazy-low. But with the least little wind, maybe 20% of the scene has moving leaves. This makes the bandwidth exceed the 8-16K I set it for.
The NVR will say "bitrate limit exceeded", with a black screen. But that confuses me, I do see the camera hitting over 16384 but why does the camera go black on the NVR? Shouldn't it downgrade the resolution or something to keep the bandwidth low? What good does setting the limits on the bitrate in the camera or NVR do if it goes higher when it needs to and then can't be recorded or viewed?
This happens even if I set the FPS down to 1 FPS.
Is this just telling me an 4K camera should not be used outside?
I just loaded the latest camera firmware (2 months newer than the current one), so we'll see how it goes.
If the NVR really can do 320 Mbps, I should be able to record live video with 4 of the 4K cameras at 10-15 FPS all day with no issue. Is this an issue with H.265+? I'd not think so, as i tried with H.264 first, and it does the same thing...exceeds whatever bitrate I set no matter the FPS.
As far as networking goes, the cameras and NVR are on a separate VLAN on Juniper switches. The ports are 1G PoE and are working as expected with no errors.
Is there no "display total incoming bitrate" screen on the NVR anywhere?
Thanks,
Ambi