Re: Device ON reporting - current sensors...

[YAP <x112358@xxxxxxxxx>]

Hi,

I did a VSCP module called "Rockhampton" for an electric
distribution
company. It's here http://www.vscp.org/wiki/doku.php/rockhampton
with
schematics here
<http://www.dosilos.se/download/hardware/rockhampton/rockhampton_din_sch006.png>

you get a logical output that can be feed to some inputdevice
indicating if 120V/240V is present or not

Another way you can use is a Hall effect sensor (no contact) or a
current sensor like this one
<http://www.vscp.org/wiki/doku.php/berlin>
but that add's some cost of
course but also give you current usage and effect.

Cheers
/Ake



On Tue, May 13, 2008 at 10:54 AM, Kevin Hawkins
<yahoogroupskh@xxxxxxx> wrote:
>
>
>
>
>
>
> I'm after a tidy way of detecting when a device is switched on.
>  Preferably something that sits in the mains lead feed and senses
current
>  levels. It should cope with a standby current and a full on so
ideally
>  should be intelligent or have a threshold current selectable. I would
>  like volt free contact reporting. What's available ? There used to be
a
>  few of these - the enthusiast versions involving a few turns of the
>  live or neutral wire around a toroid (a bit untidy) but I can't seem
to
>  find many now - or not at an economical price.
>
>  Having just been given one of the Intelliplugs (thans e-on) I was
toying
>  with using those - it has switched socket outputs that could be used
to
>  power a relay, does intelligent sensing and can be sourced for around
a
>  fiver. There is a 5 second delay for both on and off sensing though
and
>  the devices are slightly bulky being the size of a 3 way adaptor..
>  Something small and inline to the power cable (IEC connectors) would
be
>  great.
>
>  On the devices I wish to monitor I dont't have any outputs that
easily
>  reflect state eg a voltage or video synch signal that could be used
to
>  trigger something. There is an LED if there was a light based sensor
>  but haven't come across one.
>
>  Any ideas - what do you professional installers use nowadays ?
(although
>  no doubt its at a professional price too)
>
>  K
>



--
---
Ake Hedman (YAP - Yet Another Programmer)
D of Scandinavia, Brattbergavagen 17, 820 50 LOS, Sweden
Phone: (46) 73 0533 146
Company home: http://www.dofscandinavia.com
Personal homepage: http://www.dofscandinavia.com/akhe
Automated home: http://www.vscp.org

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