Re: Idea for Cheap Alarm System

[EdwardATeller <sorry_no_email@xxxxxxxxx>]

On Aug 8, 10:27 pm, AZ Woody <reply@here> wrote:
> Robert L Bass wrote:
> >> I think those systems that are designed for the elderly should also have
> >> some mechanism to detect movement and alarm if there is no movement
> >> for a specified time between particular nominated times, so that if the
> >> individual does die or is unconscious, the system will alarm then too.
>
> >> Obviously the time between detected movements is different at
> >> night and day and in the bedroom and the rest of the house etc.
>
> > The ELK-M1G home automation system can do all that.
>
> The last place my Dad lived (independent/assisted living) had a switch
> he had to hit each day.  It was a pull chain thing on the wall in the
> bedroom.
>
> If "on the cheap" is the whole theme of this thread, I can imagine a
> simple timer circuit (a one shot with a duration of say 30-36 hours).
> It's "reset" by the person each day (like my dad and the pull chain),
> but if the timer goes off, the alarm is triggered.  There probably needs
> to be a simple disable, in the event that the person will be gone for a
> couple days.

You could have something triggered by a toilet flush, speaking of
pulling a chain.
Or maybe something that senses any kind of water flow through the
water meter.