HOME SECURITY USING PLC

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HOME SECURITY USING PLC

• Ryan Badgett
• EKU, Dept. of Technology, CEN

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OUTLINE

• Introduction
• Problem Statement
• Proposed Solution
• Results
• Conclusion
• Future Work

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MOTIVATION

• Wanted to work with a PLC.
• The code of the PLC is simple.
• Had everything that I needed to work with.
• Never worked with the PLC in that way before.
• Wanted to do more hands on building.

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INTRODUCTION

• PLC have been around for a long time. They are
  used mostly in factories controlling belts and
  motors.
• I am going to us the PLC to control motors to
  raise and lower gates and the door lock.
• I had to build a circuit that allows you to
  control the motor to change the direction so the
  gates can be raise and lowered.

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PROBLEM STATEMENT

• It address the problem of someone braking into
  your house while you are away and having the
  chance to get away with your stuff.
• If they get stuck inside the house the police
  will be able to get them much easier.
• If they trigger the alarm before entering then
  nothing gets taken and they still might get
  cough.

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PROPOSED SOLUTION

• Here are some of the problems that I solved along
  the way
• I wanted to come up with something enjoyable and
  not very difficult to work with.
• I had to do some research on remembering how to
  program the PLC.
• I had to figure out how I wanted the program to
  run. For example when did I want the motors to
  turn on and for how long.
• Trying to combine the PLC language to the real
  world was a little difficult until I had some
  help.

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PROPOSED SOLUTION CONT.

• I had to find a motor with enough torch to pull
  the gats up without stopping in the middle of the
  lift.
• It took more time to test and troubleshoot then
  writing the program
• I had to get the timer on the program to match up
  to when the gates dope to the windows
• I had to make sure the right motors and switch
  tripped and went in the right order.
• After I did that I had to run the program with
  everything together and verify that it worked the
  way I wanted it to.

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HYPERLINKS

• PLC Project
• Code

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RESULTS

• The results is you set the alarm, after a
  temperature switch is triggered it will go in
  lock down mode and everything will lock down.
  Once the police and homeowner gets there he can
  unlock the system.

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CONCLUSIONS

• Everything worked out the way I wanted with the
  motor and gates after some modifications.
• It shows you how many ways you can use something
  like this in more way then in a factory
• I learned that sometimes you have to build more
  then what you tough you had to in or to get
  things working the way you need them to.

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FUTURE WORK

• If I had more time I would have been able to put
  lights and different sensors
• I will take questions if anyone has any
• Thank You
• Email ryan.badgett_at_gmail.com