Smart Lighting System Bradley University Department of Electrical - - PowerPoint PPT Presentation

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Smart Lighting System Bradley University Department of Electrical - - PowerPoint PPT Presentation

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Smart Lighting System Bradley University Department of Electrical and Computer Engineering Authors: Alexander Berian, Dustin McCart Project Advisor: Aleksander Malinowski Date: November 20 2015 Problem Description Overview Division of

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Smart Lighting System

Bradley University Department of Electrical and Computer Engineering Authors: Alexander Berian, Dustin McCart Project Advisor: Aleksander Malinowski Date: November 20 2015

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Overview

  • Problem Description
  • Division of Labor
  • System Block Diagram

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Problem Description

  • Smart light switch
  • Replace ordinary light switches
  • Pattern recognition and

utilization

  • Android smartphone

application

  • Bluetooth
  • Wi-Fi
  • User interface panel
  • Buttons and Switches
  • Controlling high voltage lights
  • Light control circuit

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http://www.fryeelectricinc.com

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Division of Labor

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System Block Diagram

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Progress

Alex Berian

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  • Schedule
  • Work completed
  • Light control

circuit

  • User interface

+ Motion sensor

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SLIDE 7

Schedule

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Light Control Circuit

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Light Control Circuit: Design

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  • Transistor
  • 2N3904
  • Relay switch
  • G5LE-1 DC5
  • Diode
  • 1N4004
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Light Control Circuit: Testing

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Theoretical VRELAY = 4.7V iB = 2.5mA Experimental VRELAY = 4.73V iB = 2.56mA

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User Interface + Motion Sensor

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User Interface + Motion Sensor: Design

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  • LED
  • C5SME-RJS
  • Button
  • 401-1967-ND
  • Switch
  • 100SP1T1B4M2QE
  • Motion Sensor
  • leegoal Pyroelectric Infrared PIR
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User Interface Circuit

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Theoretical iLED = 1.8mA iswitch on = 0.33mA iswitch off = 0A Experimental iLED = 1.127mA iswitch on = 0.303mA iswitch off = 0.56μA

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SLIDE 14

Progress

Dustin McCart

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  • Work completed
  • Pin state setting
  • Work remaining
  • Data storage

finalization

  • Prediction algorithm
  • Mode create
  • Combine all part into

final program

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Schedule

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Pin Communication Information

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Utilizes wiringPI Library

  • Inputs
  • Toggle switches
  • Motion sensor
  • 4 Push buttons
  • Outputs
  • Light control signal
  • Indicator LED status
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Communication Progress

  • Final test of board pin communication program

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Prediction Algorithm Information

  • Using Transition Probability
  • Based on Master Thesis By Rolf Heukels
  • Predicting user behavior using transition probability
  • Algorithm
  • It is a three step algorithm

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Algorithm First Step

  • First step is initial point distribution
  • Factors used in calculation:
  • Number of occurrences of each state
  • Similarity to current state

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Algorithm Second Step

  • Second step is redistribution of points
  • Factors used in calculation:
  • Current time
  • Scope of scan
  • Past transitions
  • Total number of occurrences

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Algorithm Third Step

  • Third step creates the actual prediction
  • Factors used in calculation:
  • Total number of points
  • Item to be predicted
  • All states definitions

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Prediction Program Progress

  • Reading thesis to understand algorithm
  • MATLAB programming
  • MATLAB testing
  • C++ programming
  • Crosses with data storage development
  • Testing C++ program with test project
  • Comparing with MATLAB results and debugging

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Data Storage Program Information

  • Items being stored are two arrays
  • Method chosen in class
  • Utilizes the C++ vector library

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Storage Program Progress

  • Looked for different ways to store data
  • Create basic program
  • Asked Dr. Malinowski for information on creating class

template for data storage

  • Converted storage method to class template
  • Created functions to interact with storage arrays

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Conclusion

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  • Overall Team

Progress

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Overall Team Progress

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Questions & Answers

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  • Alex Berian
  • Dustin McCart
  • Team
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Extra Slides

Alex Berian

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User Interface Circuit Test

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Motion Sensor Output

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Android Application Layout

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Light Control Circuit Test Setup

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Relay Coil Voltage Spike

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Light Control Circuit Calculations

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User Interface Circuit Calculations

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Extra Slides

Dustin McCart

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System Flow Chart

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