hmm, that's a good idea. Something to think about.

Richard

----- Original Message -----
From: "Craig Cassin" <craigcas@JPS.NET>
To: <PICLIST@MITVMA.MIT.EDU>
Sent: Wednesday, April 18, 2001 5:11 PM
Subject: Re: [PIC]: Need some help with a PIC monotoring system


> I do not know about the signal to the control room,
> but i suggest that you use a battery powered pic
> for the guard. he carries it around and plugs it into the various
stations,
> which will have different pins shorted inside the connector. The portable
> pic can keep track of the guard's route. This will save you
> transmitters or wiring.
>
> -Craig
>
> ----- Original Message -----
> From: "Richard" <richard@CCTGLOBAL.VIRTUALAVE.NET>
> To: <PICLIST@MITVMA.MIT.EDU>
> Sent: Tuesday, April 17, 2001 12:21 PM
> Subject: [PIC]: Need some help with a PIC monotoring system
>
>
> > Hi everyone.
> >
> > I need to build a system for me to monitor my guards. What I need this
> > system to do is:
> >     ~ every hour (or 1/2 hr) notify the guard that he has to patrol
> >     ~ the guard has to 'check-in' at various check points (there are
four
> of
> > them, I was thinking about using long range remotes with a receiver in
the
> > guard room. The guard has to check-in, in a sequence, so that he cannot
> > stand in one place and 'press the button' four times.)
> >     ~ Once the guard has completed his patrol, he has to 'reset' the
> system
> > by pressing a button inside the guard room.
> >     ~ If the patrol was a success (there where no problems and the guard
> > checked-in in the specified time limit) then the system must notify the
> > control room which is located at different premises, either by radio via
a
> > repeater or through telephone lines using a tele-dialler, that the
patrol
> > was successful and that all is ok.
> >     ~ If something happened on the patrol (if the time limit expired or
> the
> > guard pressed his panic remote) then the system must notify the control
> room
> > that there is a problem and that someone must be sent out to the site.
> >
> > Firstly, what is the best way to get the signal to the control room. If
> the
> > system sends and audio signal (through the use of a voice chip) with a
> > pre-recorded message or some form of data. If it is data, then something
> > must be at the receiving end to decode it, maybe a PC running a program
> > which answers a modem upon detection of a ring and then decodes the
data,
> > this will require some programming skills which I mostly lack. But can
it
> be
> > done?
> >
> > Also what PIC would be most suited to this? Could it be possible to use
a
> > 16f84?
> >
> > I would appreciate any help that you guys can give.
> >
> > Thanks,
> > Richard
> >
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> >
> >
> >
>
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>

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