Re: Help with 7 Circuit Project?

["Robert Green" <ROBERT_GREEN1963@xxxxxxxxx>]

"Robert L Bass" <robertlbass@xxxxxxxxxxx> wrote in message

<stuff snipped>

> Another false alarm reduction technigue that is available with some
systems
> is called "zone ANDing".  Two or more zones (sensing loops) are grouped
> together within an AND group.  The alarm will only sound if at least two
> zones are tripped within a given time frame.  Some panels, such as the
Napco
> Gemini series, can be programmed to sound the siren on the first zone
> tripped but will only send a signal to the monitoring center after a
second
> zone is tripped.

This is along the lines of what I was thinking about.  I want to be SURE
there's an incursion before the police are summoned.  To me, at least, that
implies that more than one type of sensor has been activated.

What concerns me the most is thunderstorms.  We have terrible ones around
here.  Last night we had the power pop on and off at least ten times.  Every
system in the neighborhood that uses glass break detectors usually goes off.
The alarm companies don't even bother dispatching anyone on really stormy
nights.  I'd like to figure out how to insure my system doesn't get
triggered by lightning.

> > I am not worried about being sued, but if I discuss
> > this topic in depth, I would feel terrible if someone
> > who did not grasp security and programming and
> > tried to change the way HAI does security, and
> > something tragic happened.
>
> I disagree.  False alarm reduction techniques should be Course 101 for
every
> user, installer, DIYer and service person who uses or works on an alarm
> system.  The real tragedy of the security industry is the 98%+ ratio of
> false alarms which have caused police departments across the country to
> consider alarms and the alarm industry a public nuisance.  Because so many
> alarms are a waste of time, police departments sometimes respond slowly or
> not at all to real alarm conditions.  There is a far greater risk of
tragey
> in this situation than arises from attempts to educate DIYers on the
> subject.

I agree with you, Bob, on this subject.  The fewer false alarms, the better
it is for every alarm system owner.  As I said before, I had very few falses
with the previous ADT system, and when the unit did trigger, the police were
out here pretty damn fast.  It can't hurt to educate DIY'ers on how to avoid
false alarms.

--
Bobby G.