GV-Net card lag with Lilin 7622

[simo923 0]

Hi Guys.

 

I have 4 PCs running 2 GV-2008 cards in each. Also, each PC has a GV-NET Card.

 

The cameras attached are Lilin 7622's (highly not recommend, terrible picture for a £600 camera)

 

PTZ is all set up correctly and working. The issue that i am having is with lag on the commands. When i control a camera, the commands do not kick in for a second or two, and then the camera moves. This is no good when trying to follow a target. Is this inherant with Geovision, does anyone else see this problem.

 

If have tried the cameras on a Samsung SV1680 DVR (excellent DVR for £1700) and they are quick off the mark, and excellent control. Also tried on their own Lilin controller, and again, lightning quick reactions.

 

The protocol i am using in the Geovision system is Lilin-PIH. There is a choice of 3 Lilin protocols and this one seems to work the best. Comms set up as 9800 Baud.

[Guest]

Hi Guys.

 

I have 4 PCs running 2 GV-2008 cards in each. Also, each PC has a GV-NET Card.

 

The cameras attached are Lilin 7622's (highly not recommend, terrible picture for a £600 camera)

 

PTZ is all set up correctly and working. The issue that i am having is with lag on the commands. When i control a camera, the commands do not kick in for a second or two, and then the camera moves. This is no good when trying to follow a target. Is this inherant with Geovision, does anyone else see this problem.

 

If have tried the cameras on a Samsung SV1680 DVR (excellent DVR for £1700) and they are quick off the mark, and excellent control. Also tried on their own Lilin controller, and again, lightning quick reactions.

 

The protocol i am using in the Geovision system is Lilin-PIH. There is a choice of 3 Lilin protocols and this one seems to work the best. Comms set up as 9800 Baud.

 

Hi!

 

Are you using PTZ control locally or over the LAN over some of the client softwares?

 

There is some lag/delay using LAN/WAN, locally there are also some delay, but much better. What is your CPU % normally? Also can the camera be slow?

 

I have been using Dynacolor, Sensormatic, Sanyo, Everfocus, Bosch, Panasonic, CNB PTZ cameras and they all have been using at a ok (could be better) respons!

 

JD

[simo923 0]

I am controlling locally from the host machine, as well as from LAN based clients. Response is the same over all of them.

 

What i forgot to mention is that i am using CAT5 for the transmission cable. I am using just the 1 pair.

 

Now, the Lilin 7622 RS-485 plug also has a connector for ground, which i have never used as the GV-NET card doesnt have it, only + and -

 

The Samsung DVR and the Lilin Controller both had ground on as well, so i suppose there lies a difference.

[Guest]

I am controlling locally from the host machine, as well as from LAN based clients. Response is the same over all of them.

 

What i forgot to mention is that i am using CAT5 for the transmission cable. I am using just the 1 pair.

 

Now, the Lilin 7622 RS-485 plug also has a connector for ground, which i have never used as the GV-NET card doesnt have it, only + and -

 

The Samsung DVR and the Lilin Controller both had ground on as well, so i suppose there lies a difference.

 

 

Do you know what baud rate you are using together with your Lillin camera? 2400 9600 and so on?

RS-485 is ok! But if your response is same locally as LAN then it is slow!

 

JD

[simo923 0]

Baud is set as 9600 but i have had the same results at 4800.

 

I think i might have to put it down to these crappy cameras, put it down to a complete waste of thousands of pounds and get something with a reputation.