Recommended max Bitrate and FPS for live view on a HWN NVR (slow internet)

[ockac23]

Hello guys,

I have a hikvision NVR HWN-4108MH with 6 bullet cameras (1080P) HWI-B120H-D/W(D).
The area where I use this hardware is very far from the city in a forested valley and therefore mobile internet coverage is limited. No other internet provider there and I use a LTE router.
The average OOKLA speed test results are:
8 Mbps down
2 Mbps up

My problem is mostly with the remote live view (sub stream) during the day sometimes it is not possible to get a smooth live view.
I changed the default max bit rate and fps values for the sub stream to :

max. bitrate: 300 kbps
bitrate type: variable
fps: 15
video quality: medium

It is a little bit better now, but still not good enough.

I attached 2 screenshots of current main and sub stream settings.
Could you pls give me some hints which will be the best values for the sub stream settings (maybe mainstream too).


Thanks and have a good day ahead!

 

[bigredfish]

I no little about HiK stuff but have you tried turning OFF h.265 and using H.264? WHile it doesnt directly effect bitrate H.265 on my Dahua equipment seems to tax the camera's resources

 

[ockac23]

I no little about HiK stuff but have you tried turning OFF h.265 and using H.264? WHile it doesnt directly effect bitrate H.265 on my Dahua equipment seems to tax the camera's resources

Actually I tested it with H.264 but unfortunately I didn't see any noticeable difference

 

[ockac23]

Since I am using the 2nd stream for remote viewing (with only possible resolution 640x360), maybe the correct question should be, which parameter settings for max bitrate and fps are compatible with that resolution?

 

[steve1225]

The area where I use this hardware is very far from the city in a forested valley and therefore mobile internet coverage is limited. No other internet provider there and I use a LTE router.

Is Your LTE router internal one or external?
If internal one, buy any LTE ODU modem or router.. It will be external panel (containing antena + modem + router) or external/internal combo.
External part need to be mount on roof / pole and directed into GSM provider antena (probably somewhere in the city)..
It should work much faster...

You can try to test, using Your mobile and entering roof (or some higher place) and test using speediest on mobile on that higher place.

Second solution is StartLink (Starlink), but starlink is good in download speed (100-200 mbit) not upload one (5-20 mbit)...

 

[ockac23]

Is Your LTE router internal one or external?
If internal one, buy any LTE ODU modem or router.. .........

Thank you for the suggestion, but unfortunately this is not an option for me, since the SIM card is locked with that internal LTE router.

So all I can do is testing with bitrate/fps parameters for that only possible resolution 640*360 to get the best results.

 

[steve1225]

Thank you for the suggestion, but unfortunately this is not an option for me, since the SIM card is locked with that internal LTE router.

So all I can do is testing with bitrate/fps parameters for that only possible resolution 640*360 to get the best results.

No - the lock is the other way around.

If you got an internal LTE router from a GSM operator as part of a one-year/two-year contract, your router is locked to SIM cards from that operator. So You can't put inside that router any SIM cart from any other GSM provider.

You can easily move this SIM card to any sim-lock-free device or even locked devices but from the same GSM provider (test with a phone, tablet, any other LTE router etc.) and it should work..

And even if your operator uses some super non-standard locks in way You described - you can always buy an external LTE modem/router from this operator as part of your internet contract.

ps. remember to check that new router is minimum LTE cat 15. There is a lot of cheap devices which are only LTE cat 6 on market, this tech is from 2011-2012 and they are slow..

 

[steve1225]

ps. get your mobile or this internal router and check on the roof / high place with direct visibility to GSM provider antena (probably in city). You will known what speed difference You will get.

 

[ockac23]

And even if your operator uses some super non-standard locks in way You described - you can always buy an external LTE modem/router from this operator as part of your internet contract.

This is exactly the case, "non-standard" lock, the SIM card can not be used in another device. Already tried it and the restriction was also confirmed by provider.

However, I will check speeds on roof/higher place as you suggested, hopefully it will get better.

By the way in the meantime I found on internet some recommended values for bitrate and fps for different resolutions, but my resolution is not listed there:

IC Realtime - Recommended Resolution/Bit Rate/Frame Rate - Reference Guide

Please see the tables below for the recommended compression type, frames per second, and maximum bit rates for each resolution

knowledge.ic.plus

 

[steve1225]

This is exactly the case, "non-standard" lock, the SIM card can not be used in another device. Already tried it and the restriction was also confirmed by provider.

Very strange.. Your location is Europe, as I understand EU..
This type of SIM locking is prohibited by EU.
We can have to use any GSM service in any device.

Other device can need to put some specific configuration (like dedicated APN name, user/pass) to work with this SIM card - but this should be provided by GSM provider.

 

[ockac23]

Yes, EU, but some provider still use this ugly practice, however I cannot avoid this restriction the next 12 months, so no need to discuss it anymore.


I have changed the bitrate/fps parameters like this:

max. bitrate: 333 kbps (according calculation 2Mbps / 6 Cams = 333.33kbps)
fps: 10
bitrate type: variable (not changed)
resolution 640x360 (cannot be changed)

Now at night (IR-light) the video runs pretty smoothly and it's ok for me, but during the day there are interruptions in picture and sound

 

[ockac23]

Do you think in my case constant bitrate type would be better than variable bitrate type?