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August 7, 2015
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Hey folks, I've got a 16 Channel Hybrid Federal Series H.264 DVR / NVR. We're looking at a few PTZ cameras with it and want to be able to monitor & control from more than one location. There's no issue controlling the camera from the NVR screen, that works fine. No issue controlling the camera directly from the laptop via IP, that's good too. But when I try and send a command from a laptop through to the NVR interface and then on to the camera, the command executes for much longer than I want. Like, if I tell the camera to turn right from the NVR, it turns right and stops relative to my quick mouseclick. If I tell it to turn right from the laptop through the NVR, it turns right and turns right and turns right and then finally stops, many degrees past where I wanted it to go.
We have a bunch of cameras, and if we have to remote out to each one to control them individually that's going to be an issue.
Any ideas?
To me that sounds normal, I mean you are no longer local and no longer on the same network, your now reaching the camera over the internet, there is bound to be some latency in the connection. Open the camera in the sub or extra stream and it should improve the response on the camera, but the quality will be lower than the main stream. Let me know if that improves the response of the camera. The camera. Thanks.
You may have to get better download speed on site if you are going to to have multiple people logged in from different locations. You should try out speedtest.net They will let you know what you are getting for bandwidth from your ISP. I recommend at least 5 mb upload speed consistent preferably 10 mb upload speed with more people logged in at one time. If that's not possible like heath said you will need to watch the extra stream remotely for good responsiveness.
August 7, 2015
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Heath Phillips said
To me that sounds normal, I mean you are no longer local and no longer on the same network, your now reaching the camera over the internet, there is bound to be some latency in the connection. Open the camera in the sub or extra stream and it should improve the response on the camera, but the quality will be lower than the main stream. Let me know if that improves the response of the camera. The camera. Thanks.
Checking the ehternet switches shows they're nowhere even remotely near capacity, and I'm able to log into the camera directly at the same time - into multiple cameras - and control them without the same problem. It's only going through the DVR that I have an issue.
August 7, 2015
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Dan Maresca said
You may have to get better download speed on site if you are going to to have multiple people logged in from different locations. You should try out speedtest.net They will let you know what you are getting for bandwidth from your ISP. I recommend at least 5 mb upload speed consistent preferably 10 mb upload speed with more people logged in at one time. If that's not possible like heath said you will need to watch the extra stream remotely for good responsiveness.
Sorry, should have specified. Definitely not the network connection. Although I've got the switches in there they're nowhere near capacity and they're on ethernet cables so short I can sneeze further - have it set up as a testbed until we have all the wiring in place.
So to clarify...
Over the network there is no issue at all, even remotely, but when you do it on your monitor is when you have this issue?
August 7, 2015
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Heath Phillips said
So to clarify...Over the network there is no issue at all, even remotely, but when you do it on your monitor is when you have this issue?
Ok, let me describe this again. If I try and control a camera over the network from the DVR, it works fine. If I try and control a camera over the network from a laptop using the browser window for the camera, it works fine. If I try and control a camera over the network from a laptop through the DVR, it reacts as though it has a slightly stuck button. Every click on the PTZ controls drags the camera much further than it ought. This is regardless of network load - I get the same results maxing the network out with windows open to the main feed of every camera I've got as I do when I'm only talking to the DVR and I'm only looking at the substreams, with the DVR network showing much lower send rates.
I mean there is no settings or anything of that nature that will affect this. Just because the network is not stressed does not mean there will not be latency in the cameras functions when your controlling it over the network through the DVR's UI. I can provide you with the latest firmware for the DVR and see if that makes any difference. In order to do that I need a picture of the back of the unit to be sure I get the correct firmware. Thanks.
Heath is correct in that latency will have some affect on operation. Firmware might help, deleting the webplugin/active x controls and reinstalling might be better. Also we are using IE the most hacked browser in the history of the internet. Im not saying your are infected, but it might be which can lead to strange operation since the infections affect the active X. This is probably more of a latency issue than anything else. The communication is going through so many layers of software and hardware then back through again before you see it. You are dependent on a live video feed as well for response. DVR has to process all of that.
https://en.wikipedia.org/wiki/OSI_model
If you look at that link it will start to make more sense. For communication you are going up and down through the layers multiple times to execute one instruction. The PC, DVR, and camera all have their own operating system. If this is an IP camera I would say you go through the 7 layers 6 times per instruction. If we are talking analog ptz then 4 times. The analog cameras do not have much of an operating system, they are more like drivers on those cameras.
Ok, let me describe this again. If I try and control a camera over the network from the DVR, it works fine. If I try and control a camera over the network from a laptop using the browser window for the camera, it works fine. If I try and control a camera over the network from a laptop through the DVR, it reacts as though it has a slightly stuck button. Every click on the PTZ controls drags the camera much further than it ought. This is regardless of network load - I get the same results maxing the network out with windows open to the main feed of every camera I've got as I do when I'm only talking to the DVR and I'm only looking at the substreams, with the DVR network showing much lower send rates.
It sounds to me like you could have a web plugin issue. You have to use Internet Explorer in compatibility mode with unsigned active x downloads enabled to have a good installation of the web plugin. Have you tried to control the camera with Smart PSS?
Smart PSS Windows (2015)
https://www.securitycameraking.....#038;ind=0
This will eliminate the web browser and test how it controls using your laptop.
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