RE: Room occupancy detection

[Paul Gale <groups2@xxxxxxxxxxxxxxxx>]

Geovision CCTV has a face detection feature - I wounder if this could
work.

Certainly wouldn't want CCTV cameras in rooms though - you'd soon get dodgy
comments from friends and family!

Paul.


> -----Original Message-----
> From: ukha_d@xxxxxxx [mailto:ukha_d@xxxxxxx] On Behalf
> Of Kevin Hawkins
> Sent: 02 December 2008 23:51
> To: ukha_d@xxxxxxx
> Subject: Re: [ukha_d] Room occupancy detection
>
> Ahh - the holy grail of occupancy detection - I really wish we had a
> solution...
>
> Re Bluetooth - actually there is already a xAP application that does
> some of this called xAP Blue from http://www.mi4.biz -  I don't know if
> you'd like to play with that and see if from a general detection
> perspective it achieves some of what you want.  It doesn't triangulate
> as such but it may at least give you confidence that you're on the
> right
> track.
>
> Overall though I'm not sure that BT is the right way - as there are
> always phones left on a table or people without phones, plus I rarely
> carry mine.     I still feel a carefully written camera image analysis
> (IR sensitive ?) based application that handles appropriate sized
> shapes
> that appear in the field of view coupled with movement is a good basis
> ,
> coping hopefully even with sleeping individuals on a sofa. Yes it
might
> get thrown by the occasional discarded coat (but so could BT).
> Changing light conditions and shadows I'm sure are going to be hard to
> handle.   This approach is already used in security applications (left
> packages) and I had hoped ZoneMinder might eventually experiment with
> such a feature for HA - perhaps pairing this with other realtime
sensor
> info like PIR's.  I guess security apps have fairly constant lighting
> conditions , often without sunlight as well.
>
>     K
>
>
>
>    Brian Milton wrote:
> > Hi,
> >
> > I know this is a big area in home automation,  I have used PIR's,
> > infrared triggers to try detect occupancy.  But have the usual
> problem
> > of not being 100% sure if someone is in the room or not and have
> > lights etc. turn off even when your in the room.
> >
> > I have been working on an idea and was wondering what people
think of
> > it and would it be of interest.  It will be just a hobby and will
> most
> > likely make it open source if it works out.
> >
> > My idea is to create a indoor positioning system using bluetooth,
> > mainly thinking of peoples phones.  Your phone could be used to
track
> > what room you are in rather than trying to find out if someone
went
> > into a room or not.  So if your sitting in a room the system will
> know
> > you are there, getting rid of the guess work.
> >
> > Obviously this will require some bluetooth devices placed around
the
> > house to triangulate position.  The main advantages i am doing
this
> > for is to get rid of the guess work, but to also have the
automation
> > more personalised to the specific user/room/appliances/time etc.
> Also
> > will look at using your phone for control.
> >
> > I am going to be developing this in java as its the main language
i
> > know and most phones will support it.  I also will include the
> > x10/xAP/xPL API's and maybe more.
> >
> > Any taughts? Know of a similar system? Or am i wasting my time?
> >
> > Cheers
> > Brian
> >
> >
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