Is a Geovision GV800-8 enough to run 8 cameras?

[squale 0]

Just wondering, how the FPS work on these Geovisions cards. I know the GV800-8 has 120fps total abilities. Now let's say I only had 2 camers hooked up to this card. Do each of the 2 cameras get 60fps? (120fps/2 cameras)

 

or does the 120fps get split 8 ways ALL THE TIME no matter how many cameras you have hooked up? so for instance, again I have 2 cameras hooked up but now each camera only gets 15fps (120fps/8) ??

 

Just trying to figure out how this works on these cards because right now I will only have a couple cameras hooked up to this card. I will add in the future as I get more money, lol

 

and when the time comes that I have 8 cameras, is 15fps per camera enough to really see full motion video? or is it all jaggy and really hard to make out full motion at 15fps? I'm just trying to get a feel for what fps people normall record at for full motion prosecutable video?

 

Thanks

[CCTVINSTALLER 0]

Squale, 50fps is industry standard, i think geovision the GV800-8 way is actually 100fps when you use PAL recording format and 120fps using NTSC recording. Im guessing you're using PAL, if you're recording on motion, geovison will use a feture called SMART. so the 100fps will be split according to how many cameras you're using. e.g. if 8 cams are connected and only 4 cams are picking up motion, then the system will record 4 cams at 25ps each (25X4=100fps) if additional cameras pick up motion say 5 then each cam will record at 20fps (20X5-100fps)

 

I THINK It only allocates a maximum of 25fps per cameras, so you wont need to reecord beyond that, remember 25fps= real time, so recording beyond that would be unecessary. If you only have 2 cameras and you are recording round the clock (constant recording) both cams will be recording real time at 25fps, as you add cameras it will begin to split the 100fos equally, so 8 cams will be recording at 12.5fps each. But recording round the clock is unnecessary, we always set our systems on motion. Hope some of this helps and i havent confused you!

[squale 0]

I am NTSC... so recording around the clock for instance, what if I have 4 cameras installed.. will I get 30fps per camera?

 

how about if I have 6 cameras installed, will I get 20fps per camera? what is the recommend NTSC FPS setting for Prosecutable full motion? do you need 30fps or is a bit less just as good?

 

Thanks

[CCTVINSTALLER 0]

yes thats correct, you'll get 30X4= 120 fps. yes same with 6 cams you'll get 20fpsX6=120, dont see the need to record around the clock though, motiion is fine. 5- 7.5fps is used in commercially. 30fps for domestic use is not necessary, i would use the smart function and record motion, you'll get more storage space, why would you want to record all day, you'll also find it harder to search for an incident because you've got so much recorded video!, thats some of the complaints we had from domestic customers!

[Thomas 0]

And then you run into the problem of MPEG in court. But the time lasp recordings from the VCRs were 1 fps.

[squale 0]

wow only 5-7.5fps is commerically acceptable? I thought commerical uses were definately recording in full motion video (30fps) ?

 

so really my GV800-8 is a pretty powerful card then huh?

 

see what I was afraid of was that the GV800-8 was going to have a set 15fps per channel. So the card can do 8 video channels, thus it would put out 15fps to each channel LOCKED (15fpsx8=120fps). I didn't know the card would use ALL of it's 120fps resources on only like 2 or 4 cameras... so I guess this is good news!

[Thomas 0]

Some of the others can correct me, thier field experance is better then mine.

 

There are two uses for security. Deterance or dectection. One is that the cameras simply being thier and visable stop an illegal action. The second use is detection. Which leads to the question of what you're trying to detect. Are you trying to view/prepare evidence of vandelism or break-ins? If so, why would you need more then a few frames a second to be able to identify the person? Or do you need to see slight of hand? If that's the case, you need a few more fps. But those tend to be casino systems or LP types trying to watch the tills.

[rory 0]

i got a Kalatel DVR set to time lapse 20pps mode, across 13 cameras, and he can catch the hands at the registers, just for an example - so those cameras are not even doing close to 20pps per camera. DVR itself is 60pps.

[squale 0]

I am mainly trying to just watch for any vandals around my house and for the night (which is why I want a good night vision camera) I want to see the bears eating my garbage and the deer, other animals, etc around my house. I live in a very wooded area and animals are always destroying my garbage, so I wanted to find a way to observe them at night and think of a plan of house to deter them away from my garbage..

I was maybe thinking something along the lines of, have a camera on my garbage cans, upon motion of say an animal, I sound some type of loud siren outside to scar them away or something.. what do you think? lol, I would probably upset the neighbors with a siren..

 

if only they could make it so the water hose would turn on and soak the animals upon motion detections that would work, but then if I forget to turn my motion detection off, the garbage men are going to get wet, lol

[CCTVINSTALLER 0]

Lol, squale, using the GV-Relay or GVIO, i think the water idea could be possible!, Seriously you get bears and deers, dont think any camera would deter them, upload a pic if you ever do catch a bear! Try to find some sort of high frequenccy sound device which deters large animals, you could probably use the geo to trigger it on motion!

[squale 0]

yeah at first I was thinking X10, but their stuff looks sorta cheap and they really didn't have anything that I could use. Turning lights on and off in my house with a remote is really of no great need for me at the moment. And the X-10 video cameras look like a joke, the images SUCK!!!!

 

Anyhow, yeah I will definately upload bear picks when I get a setup. Right now they are hibernating but in the spring we get them like everyday, full daylight, dark outside, it doesn't matter.

 

The one other thing I wanted a camera on the front of my house for was so I can see who is at the front door. What can I say, I am a gadget freak!

[rory 0]

well another option is a basic hard wired alarm system, use a Photoelectric beam to cross the front yard where the cans are, or an outdoor motion detector, and have the siren output trigger a relay which then ties into the sprinklers.

 

You could even have the relay trigger a shotgun mounted on the roof looking at the cans!

 

Rory

[squale 0]

now I like the shotgun idea.. lol

 

yes I already have a security system, it's a Brinks security system installed in the house with motion detectors in the house

[rory 0]

you can buy a relay from Radio shack and have someone install that with a beam or outdoor motion, tie the relay into whatever you want turned on

[Thomas 0]

Bah, just do the set up like the guy with the hunting site....PTZ mounting then use a relay to fire.

[rory 0]

yep, Phillips Motion Tracking PTZ with a gun mounted on it ...

[squale 0]

or I can line underground around my garbage cans with mortars. Then upon motion, make my little Mine field go crazy... but the only downside to this is I have to hope that the bears get there first before me or the garbage men.. lol

[rory 0]

we have packs of stray dogs here that attack my garbage every other night, well havent in the past week or so, but what I do is spray everything with bug spray, seems to keep them away for a little while.

[rory 0]

i just had to double check, you said BEARS are attacking your garbage!!?

[squale 0]

oh yeah, I get bears just about EVERYDAY except the cold winter like now because they are hibernating

 

my neighbor had a black bear run THROUGH his garage door last year to get at garbage, the cops had to shot the bear with rubber bullets to scare him off

[rory 0]

darn, sounds like you need some Razor wire electrified!

[squale 0]

lol,, yeah really

[squale 0]

must be paradise down by you... lucky son of a ##%#$%^$

 

It's friggen 10 degrees F out right now here in jersey

[rory 0]

its been hot, but it got cold today, around 68 Degrees F right now ..time to put my jacket to use

 

Not quite paradise any more though, I live in the capital city (main island), which is mostly a ghetto.

 

http://www.weather.com/outlook/travel/businesstraveler/local/BFXX0005

[squale 0]

still very nice though I am sure, except when there are hurricanes..