Re: CCTV with Comfort

["Andrew Roberts" <andrew@xxxxxxx>]

Nigel,
A very low cost method is using the relay module with Comfort, there is a
schematic PDF diagram on this page:
http://www.comfort.org.uk/products/rly01.html
 (Peripherals, click the house
to take you to products)

We've successfully put 8 cameras through two of these relays connected to 8
outputs using colour cameras on just screened alarm cable. The HCC300 and
301 cameras have built in PIR's and are waterproof.
http://www.comfort.org.uk/products/

The response is programmed so that only one output is active at any time.
We
have the pirs switching on the lights(if dark), announcing the zone
name,switching the relative output to view on the monitor or Scart and
triggerring the Timelapse VCR into emergency record(using another output)).
After movement has ceased, a 20 second timer brings the view back to camera
1 (doorphone). By using flags we can also manually select one of the 8
cameras and the image stays until we switch to auto (flag off).

The picture stability when switched is excellent considering there is no
processing circuitry here.

Using the same responses on the front and back doors means that when you
open the door the lights and cameras switch. Additionally you can do the
same with the garage door remote, open the door when your're down the road,
lights switch on if dark and the door opens and the garage PIR is shunted
to
allow you to drive straight in without creating an alarm or fiddling with
keys at the front door in the rain.


Andrew
CHC

From: Nigel Orr <Nigel.Orr@xxxxxxx>
To: <ukha_d@xxxxxxx>
Sent: 12 April 2000 14:27
Subject: Re: [ukha_d] CCTV


> I've not tried video switching yet (only on one camera at the mo'),
but
> there are relays specifically designed for video (co-ax contacts?
probably
> not :-) ) and there are IC video muxes about too- but I guess you're
> looking for an off-the-shelf type of solution?  I'm hoping to use
Comfort
> to manage the video switching, but it's not a particularly high
priority
so
> could take a year or two.
>
> I've seen a card designed for use with PCs/Windows, which can take
(IIRC)
4
> or 8 inputs, and switch to them depending on control inputs, then
record
on
> PC (it might have a video out too).  If you like, I'll ask the person
that
> has it and give you more detail...
>
> >3. What is the best way to record?  An old VCR or a PC with
Capture card.
>
> I'd plump for the VCR.  Ideally if you want to present the info to the
> police it'd probably be more credible on tape, with time recorded on
top,
> than on a ZIP disc... if you just want it for your own interest, PC is
> easier to index, and access remotely.  You can get time lapse VCRs
from
the
> likes of http://www.cpc.co.uk.
>
> >permanently connected to the Net via my Home Highway.  What's the
best
way
> >to have the camera output sent to my desk at work?
>
> Email, or ftp upload, assuming they will incoming ports as they are
doing
> with ADSL.  If they don't, then a web server on otto would do nicely.
>
> Nigel
>
>
>
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