Project: Train detector - Collexion

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Message from discussion Project: Train detector
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Date: Tue, 16 Oct 2012 20:47:17 -0400
Message-ID: <CALCk4XjJRcmW5McVcF2RBOr2sA+Y4VdiuntckyE241ayEAy...@mail.gmail.com>
Subject: Re: Project: Train detector
From: Dustin Mays <dork.fish....@gmail.com>
To: collexion@googlegroups.com
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> My second thought was rangefinding with optics or ultrasound.

I first read 'rangefinding' as 'ragefinding', which I feel is appropriate
as I HATE living near trains (lived on Waller Ave a couple years ago, and
ways maybe 100ft or less from the tracks. It was awful).

Carry on with your discussion, gentlemen.

On Tue, Oct 16, 2012 at 6:00 PM, timk <theaterf...@yahoo.com> wrote:

> I really like the sound level idea for its simplicity. A unidirectional
> shotgun microphone (even homemade) pointed at the tracks ought to show you
> big, long waveform spikes when a train goes trundling by. Two microphones
> aimed a fair bit apart would give you a good idea of the train's speed,
> which might even let you calculate its length and the number of cars.
>
> My second thought was rangefinding with optics or ultrasound.
>
> On Monday, October 15, 2012 2:06:39 PM UTC-4, David Hempy wrote:
>>
>> Now I'm thinking about a data logging train detector. How would that
>> work?  Exactly what data would it record?  What would the data reveal?
>> Would the data be interesting to anyone else?
>>
>> Personally, I'm most interested in the detection part.  Here's my desired
>> parameters:
>>
>> Single point of observation, 100' from the tracks.  (No trespassing!)
>> Power and net (or download) access available. Hobby budget.  All-season
>> operation with three-year reliability, maintenance allowed.
>>
>>  --
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<div></div><div>&gt; My second thought was rangefinding with optics or ultr=
asound.</div><br>I first read &#39;rangefinding&#39; as &#39;ragefinding&#3=
9;, which I feel is appropriate as I HATE living near trains (lived on Wall=
er Ave a couple years ago, and ways maybe 100ft or less from the tracks. It=
 was awful).<br>
<br>Carry on with your discussion, gentlemen.<br><br><div class=3D"gmail_qu=
ote">On Tue, Oct 16, 2012 at 6:00 PM, timk <span dir=3D"ltr">&lt;<a href=3D=
"mailto:theaterf...@yahoo.com" target=3D"_blank">theaterf...@yahoo.com</a>&=
gt;</span> wrote:<br>
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex">I really like the sound level idea for its s=
implicity. A unidirectional shotgun microphone (even homemade) pointed at t=
he tracks ought to show you big, long waveform spikes when a train goes tru=
ndling by. Two microphones aimed a fair bit apart would give you a good ide=
a of the train&#39;s speed, which might even let you calculate its length a=
nd the number of cars.<div>
<br></div><div>My second thought was rangefinding with optics or ultrasound=
.</div><div class=3D"im"><div><br></div><div>On Monday, October 15, 2012 2:=
06:39 PM UTC-4, David Hempy wrote:<blockquote class=3D"gmail_quote" style=
=3D"margin:0;margin-left:0.8ex;border-left:1px #ccc solid;padding-left:1ex"=
>
Now I&#39;m thinking about a data logging train detector. How would that wo=
rk?=A0 Exactly what data would it record?=A0 What would the data reveal?=A0=
 Would the data be interesting to anyone else?=A0 <br><br>Personally, I&#39=
;m most interested in the detection part.=A0 Here&#39;s my desired paramete=
rs:<br>

<br>Single point of observation, 100&#39; from the tracks.=A0 (No trespassi=
ng!) Power and net (or download) access available. Hobby budget.=A0 All-sea=
son operation with three-year reliability, maintenance allowed. <br><br>
</blockquote></div>

<p></p></div><div class=3D"im">

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</div></div></blockquote></div><br>

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