Newsgroups: sci.electronics
Path: utzoo!henry
From: henry@zoo.toronto.edu (Henry Spencer)
Subject: Re: Simple radio remote control
Message-ID: <1990Sep13.153403.18317@zoo.toronto.edu>
Organization: U of Toronto Zoology
References: <1064.26E59478@ofa123.fidonet.org> <1872@oucsace.cs.OHIOU.EDU> <154DAVE@ORION>
Date: Thu, 13 Sep 90 15:34:03 GMT

In article <154DAVE@ORION> DAVE@ORION.BITNET writes:
>Our elevators on campus are always quite busy, and we are looking to modify
>them with a 'remote control' to allow authorized personnel immediate access
>to a car when nessecary.  We hope to do this by placing radio-controlled
>switches in parallel...

Is there a reason why you absolutely must have *radio* control?  Given that
one seldom summons an elevator without being physically at one of the doors,
a keyswitch system would be an order of magnitude simpler, and would avoid
concerns about noise pickup etc (a significant worry for simple radio
systems).
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