Choosing a home (outdoor) CCTV surveillance system

Harry Bloomfield wrote in news: snipped-for-privacy@NOSPAM.tiscali.co.uk:

That sounds ideal. Where can I find info on how to set this up (storing the footage to a website)?

JakeD

I have IP67 cameras - with a built in heater.

They do cost £110 ish so I slowly built up the collection after deciding where I wanted them and where to aim them.

Unless you want to go in for quarter frame at 7fps, yes it seems so.

That or whoever wrote the spec seems to have made a mistake.

innews:Xns9F6A9E84CACF6zzzzzz@130.133.4.11:

I have a large 12v car battery in the garage. I imagine any size battery would do. It won't start the car any more but will run all the cameras and their IR lights for about 5 hours when there is a power cut. I have three small b/w tvs that can run on 12 volts, but I've not got around to running a 12v wire up to the house yet.

The is some kind of remote access with my system but I have not looked into that. I have a local 500 MHz computer that runs on the mains, so it stops in a power cut.

There is an option to automatically overwrite the oldest recordings but I don't use it. About every month I delete half of the recordings. The onsite cammeras record boring things like cats and birds and rats and spiders, so I tend to delete those first. At 3 frames per second, it records a 6 megabyte file every 15 minutes, for each continuous camera. The quality could be better, at a greater cost.

A valuable function is the pre-record - with the cameras in motion detection mode, it will keep 30 seconds of video in memory, and write that to disk when motion is detected. So I get a record of 30 seconds before the motion started, and 30 seconds after the motion has stopped. It is usually necessary to select the parts of the screen where motion detection is wanted, and moving trees need to be excluded. But the pre- record and will show the pikeys moving anywhere in the frame.

Ponit noted.

And so is the spelling!

Would the fact that it doesn't deliver enough charge to start a car indicate that a batterry is a bit more lossy in charging, i.e. a little less efficient?

AJH

I don't care about efficiency. It takes about 12 watts to charge the battery and run the cameras. If I used a decent battery it would probably run the cameras for days if there was a power cut. But power cuts are never more than a few hours at most.

Matty F wrote in news:74e49731-918a-41e7-a16b- snipped-for-privacy@j10g2000vbb.googlegroups.com:

Your comments are v. interesting to me as I am configuring a similar setup at home. Is there any danger of killing the batter by overcharging, if the security gear is using less power than what the charger is pumping out? Do you use a standard car-batter charger, set on "Lo" rather than "Hi"?

I wonder if a relatively small-in-size gel-cell battery would do the job equally well. Anyone comment on that?

JakeD

Use a smart charger as sold to the bikers for keeping their batteries in good condition. Full rate when it's flat, trickle to top up and monitors the voltage after that. Normal chargers will not stop when the battery is full, and will "cook" it.

It would, but you need use the right float charger with it. You can get a matched battery and charger setup at Maplin.

Thanks, I've downloaded that and will give it a go.

Alan.

years now with six IP cameras and have yet to be burgled so it must be good. ;-)

Mathew