Perimeter Intrusion Detection

[Byrd 0]

Hi Newbie Poster here. Sorry if this is in the wrong place.

 

I live in an estate and we are currently discussing the issue of perimeter security. We currently have a 24 hour Guarding service who patrol our parimeter, but this is not a great idea for obvious reasons.

 

One of the ideas of the management commitee is to install IR beams all the way around and then IR CCTV cameras in some high risk locations.

 

Being a software developer, I thought why cant those cameras be used to detect the motion? I did a bit of research and happened across 2 interesting items.

 

The first being

http://www.c3ss.co.za/

 

They use very high tech equipment and seem to be quite sucsessfull - however their pricing is about $120 000 over our modest budget.

 

I also happened across the Geovision range of cards. I thought that using IR cams in conjunction with Geovision's motion detection facility that we could forgo the beams and just have cameras all the way around the estate. If any motion was detected in demarcated zones then the guard would be alerted to it and would be able to decide on what action to take.

 

Another question I have is - how easy is it to set the Geovision software up to run in one configuration during the day and then automaticaly switch over to a different configuration during the night. We may want the zones changed from day to night.

 

Any comments on this would be greatly appreciated.

[tomcctv 190]

Hi to start you off take a look at the link below i have one getting shipped over from the states to try. you do need to install your own camera into the unit. but the system comes with 15 detectors.

 

geovision is a good start. and will do most of your needs. but find a good installer who knows geovision. some good guys on the forum. just let them know were you are.

 

 

http://futuresentry.com/

[bike_rider 0]

Camera based motion detection is a poor solution for perimeter security because it is very hard to get it so there are no false positives. "motion" can be cloud shadows, trees in the wind, cats, bugs up close to the lens.

 

The geovision software is very flexible, but without knowing more about how you might change your day and night settings, I can't say if it can handle your need.

[Byrd 0]

It should be OK if there are false positives, to a degree of course

 

We want the guards to actualy be looking at what is going on and not slacking off. What we dont want however is a false sense of security where motion is not detected and brought to their attention ..

 

Thx for the comments

[rory 0]

Typically one should use something like Beams and tie those into the CCTV system. The Beams are a physical solution compared to one only based on image changes.

[Byrd 0]

Typically one should use something like Beams and tie those into the CCTV system. The Beams are a physical solution compared to one only based on image changes.

 

The problem, as always, is budget - and there will unlikely be budget for both. If we were to select one route or the other, which one in your opinion Rory? IE Beams Beams with a few cameras ( about 10 % coverage) or only cameras but with motion detection?

[cglaeser 0]

The problem, as always, is budget - and there will unlikely be budget for both.

 

PIR motion sensors and IR beams are both relatively cheap. Crow Daredevil PIR motion sensors are high quality and about $100. Optex has excellent IR beams and PIR motion sensors. As has already been stated above, camera motion detection is a poor solution. Changing light conditions from clouds, moving branches, and other issues are all problematic.

 

Best,

Christopher

[thewireguys 3]

http://www.ioimage.com is anther option

[rory 0]

The problem, as always, is budget - and there will unlikely be budget for both. If we were to select one route or the other, which one in your opinion Rory? IE Beams Beams with a few cameras ( about 10 % coverage) or only cameras but with motion detection?

 

Cameras need alot of light, so if it is dark there you will need to spend alot on powerful Infrared Lighting anyway, not just the basic stuff you find from OEM brands, need the really powerful "flood" Infrared.

 

All cameras can do motion detection if using a DVR that has motion detection. You can do both. I would do beams first then add cameras in to cover those areas.

 

But I dont know how large this area is or other aspects of it, so still hard to say.

 

Other options include Thermal cameras only, with video motion detection. Though still I would prefer some beams in addition.

 

Check out these guys, been using them for years in the alarm industry

http://www.optexamerica.com/default.aspx

 

that said if you are REALLY on a strict budget, poor like me, then just get color bullets and add in some motion detector lights at each camera location, if it doesnt have lighting, or use exview BW bullets. You can always add more IR or Visible light as needed. Then use the built in DVR video motion detection ... still not 100% but thats on a strict budget, something is better then nothing.

[hardwired 0]

Optex probably does make the best beams. Depending on the area you are trying to cover, though, you could look into area sensors, Protech makes very good ones that will cover out 100' or so, reduces labor if that will work. Look at http://www.protechusa.com/Products/documents/XL2Med1.pdf