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Siding track occupancy

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  • Member since
    December 2002
  • From: US
  • 24 posts
Siding track occupancy
Posted by rbettig on Thursday, August 5, 2010 9:14 AM

 Good day to all from a hot and steamy Connecticut.

I have 4 siding tracks  located between back drops and buildings, and often I can't see if they are occupied. I am thinking about installing some kind of "occupancy system/device". which would certainly help. The installation has to be fairly easy due to the fact that the access to the tracks themselves is not the best. I am sure that a similar scenario came up before on this forum, and I thank  all for their suggestions.

Richard

 

 

 

  • Member since
    December 2004
  • From: Bedford, MA, USA
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Posted by MisterBeasley on Thursday, August 5, 2010 9:37 AM

Optical or infrared detectors are probably the best thing to use for general detection.  That way, you don't need special axles with resistors, and you can detect rolling stock even if they've got plastic wheels.

Another thing to try is cheap video surveillance cameras.  You can find them on eBay.  If the sidings are all visible from one spot, you would only need one camera.  I have an old analog TV I use for a monitor.  I have a couple of under-layout staging tracks for my subways, and I plan to use an old camcorder for my camera.  (The tape transport crapped out, but the camera part is still fine.)  You can get video switch boxes if you need multiple cameras to cover all your sidings.

It takes an iron man to play with a toy iron horse. 

  • Member since
    November 2007
  • From: Houston, Tx
  • 135 posts
Posted by ds137 on Thursday, August 5, 2010 1:37 PM

our train club went low tech on this one- had several staging tracks that were not visable from the aisle until they suspended a couple of cheap Full length dressing mirrors ( the kind you mount on a door to see your shoes in) from the ceiling at the apropriate angle.  Could also hang from shelf brackets on the wall or from an overhead valance. 

Earl

I once caught a train in my pajama's. How it got in my pajama's I'll never know... (sorry, Groucho)

  • Member since
    March 2007
  • 2,751 posts
Posted by Allegheny2-6-6-6 on Monday, August 9, 2010 10:44 PM

 Get yourself something like this for around $20 you can either use an old TV or a computer monitor.

I have several of these throughout the train room/layout inside a couple of tunnels for example and  nestled among the overhead track lighting  they are not even noticeable. I have a friend who took it tot he next level and purchased wireless cameras and uses  one of those hand held TV's as a monitor. If your looking to go on the cheap scour the yard sales for a wireless baby monitors

 

http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=2703737&CatId=5967

 

Just my 2 cents worth, I spent the rest on trains. If you choked a Smurf what color would he turn?
  • Member since
    August 2006
  • From: Greendale, WI
  • 108 posts
Posted by Robert Frey on Thursday, August 12, 2010 3:56 PM
“Simple Train Detection for Staging Tracks”, page 64, October 2009 issue of Model Railroad. There was a small error, which was discussed in the following: Electronics & DCC Form. The MR circuit had two IR Sensors but, a very simple IR Train Sensing Circuit can be made using just one IR Sensor, one Transistor and one LED. It can sense the tip of your finger more then 1/2 inches away. If the 470 Ohm resistor used in the above circuit from the MR Electronic form is reduced to 330 Ohms ½ Watt, then more IR current will flow. Also, if the cover over the “E” diode is removed, then even more IR light is emitted. This will further increase the operating IR reflective range of the QRB1114. WARNING: If the IR sensor face “S” is pointed directly at an overhead Incandescent lamp, then the LED will light. By using just the “E” and “S” parts without the enclosure, you will find it is easier to drill two 0.17” Dia. holes for these two IR parts. Or you can purchase the basic “E” & “S” parts. The LED is: QEC113 and the phototransistor: QSC113. Note that without the plastic cover, some shrink tubing is needed to covers the “S” phototransistor, with about a 1/16” dia. hole opening in the face. This is to reduce the effect of overhead Incandescent or strong sunlight ambient problems. Robert Frey IR_Circuit

Website: http://bobfrey.auclair.com

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  • From: Northern VA
  • 3,050 posts
Posted by jwhitten on Saturday, August 14, 2010 11:23 AM

MisterBeasley

Optical or infrared detectors are probably the best thing to use for general detection.  That way, you don't need special axles with resistors, and you can detect rolling stock even if they've got plastic wheels.

Another thing to try is cheap video surveillance cameras.  You can find them on eBay.  If the sidings are all visible from one spot, you would only need one camera.  I have an old analog TV I use for a monitor.  I have a couple of under-layout staging tracks for my subways, and I plan to use an old camcorder for my camera.  (The tape transport crapped out, but the camera part is still fine.)  You can get video switch boxes if you need multiple cameras to cover all your sidings.

 

 

A long time ago I picked-up a box of old LCD displays that were removed from service from airplane seats (Think: Back of the seat in-flight movies). They take 12VDC to run and a standard NTSC video signal. So just about any small camera will work. I actually have a number I bought for a different project from the X10 store (now defunct I think, but the cameras are probably still available). The nice thing about the cameras is they come with around 50 feet or so of (flat) cable that makes it easy to put them somewhere else, and still terminate in a regular NTSC RCA plug. They also feed power down the cable too so hookup is super easy. Anyway, something like that is easy to acquire and set up. Even if you don't find the exact parts I have.  LCD monitors are cheap on ebay, even if you buy them new. And of course you could always pick up an el-cheapo computer and just use USB "web" cameras. I personally prefer using a dedicated type of camera / monitor setup for that type of use though.

 

John

Modeling the South Pennsylvania Railroad ("The Hilltop Route") in the late 50's

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