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!'''<big>Will Dallmann</big>''' 
![[Image:wedallmatwo.jpg|thumb|center|upright=1.25|I'm an undergraduate student at Michigan Technological Univesity in the [http://www.ece.mtu.edu/ Department of Electrical and Computer Engineering]]]
'''Will Dallmann'''
=== Project Background ===
More info Every time railroad crews need to comework on track near railroad crossings, it is necessary for the crews to disable the crossing signals otherwise their work vehicles (such as tampers or high rail vehicles) will cause the railroad crossing to activate sporadically. A railroad crossing works by having a special piece of equipment (crossing predictor) use the track as a circuit. As a train approaches the crossing predictors track circuit, the train shunts the circuit. While shunting the track, the voltage on the track lowers as the train approaches the railroad crossing (due to the lowering of the resistance in the track). The crossing predictor uses this decreasing voltage to determine when to activate the crossing signals.A railroad crew disables the crossing signals by using a jumper cable connected to a voltage source to "jump" the crossing predictor and cause it to read a steady voltage. The steady voltage then prevents it from detecting a train or work vehicle. On rare occasions, work crews have forgotten their jumper cables and left the crossing signals disabled after they've left. Our team's goal was to solve the problem of forgotten jumper cables. === Project Solution === Our team came up with a solution that could reactivate the crossing signals if the jumper cables were ever forgotten. We designed a device that would replace the jumper cables by creating an improved jumper cable. The device would utilized a micro controller that would have jumper cables and a switching circuit attached to it. The jumper cables would be connected as normally except the micro controller would monitor the voltage from the crossing predictor. The micro controller would be specially programmed to distinguish between a work vehicle and a train.When a train is detected by the micro controller, the micro controller would flip the switch on the switching circuit which would deactivate that jumper cables and reactive the crossing signals.
Senior Design Expo [https://www.youtube.com/watch?v=sxosJXVrQL4Senior Design Expo]
== More 3-D Printing Interests ==
More info to come.As one who enjoys both mobile application development and micro controller programming, I've been highly interested in smart home devices such as [http://www.smartthings.com SmartThings] or [httpshttp://www.youtubezwaveproducts.com/watch?v=ZVUyyHYkBHkGE.html Z-Wave Technologies]. Using 3-D printing, I'm interested in designing custom home devices that could be used with custom programmed Arduino micro controllers (since I own an Arduino UNO). A simple example would be to use an Arduino to display messages on an LCD with a custom 3-D printed case around the Arduino and LCD to create one single device that could be used in your home. My goal is to finish something special related to this for the Money Project in the class EE4777 at Michigan Tech.
== 3-D Printing Accomplishments ==
Updates to come after I take additional pictures.
== Userboxes ==


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