APLES

1
APLES

• Midterm Presentation
• October 2, 2008

2
The Team

• Blake Remy
• Team Leader
• Electrical Engineering
• -Power Control
• -RF Transmission
• -Circuit Design

Joel Russell Computer Engineering -Microprocessor
Programming -RF Transmission
Dale Alexander Electrical Engineering -Switching -
Circuit Design
Matt Hodges Electrical Engineering -Power
Control -Switching -Circuit Design
3
Overview

• Introduction
• Problem
• Solution
• Constraints
• Technical
• Practical
• Design Approach
• Progress
• References
• Questions

4
Problem

• A majority of the energy consumed in
• lighting company parking lots is often
• wasted because there is no one in the lot to
• take advantage of the light being produced.

5
Solution

• A lighting system that is only used when
• light is needed by an employee.

6
Technical Constraints
7
Practical Constraints

• Sustainability
• Control Unit Durability
• Hand-held Unit Durability
• Manufacturability
• Control Unit Size
• Hand-held Unit Size

8
Sustainability

• Control Unit Durability
• APLES will be resistant to various types of
  weather conditions.
• CU Will be housed in a weatherproof casing.
• Hand-held Unit Durability
• The hand-held unit will be durable enough to
  withstand rugged use.

9
Manufacturability

• Control Unit Size
• The APLES pole unit must be approximately 16 x
  12 x 4.
• Hand-held Unit Size
• The APLES handheld unit must be the size of a key
  fob.

10
Design Approach
11
Design Approach
12
Transceiver
13
Transceiver
14
Transceiver
2
1
3
15
Transceiver (contd)
2
1
3
16
Receiver
17
Transmitter
18
Dimming Control
19
HID Lights

• APLES control unit will support up to four lights
  on a single pole
• Dim setting supplies 60 V
• Bright setting supplies 120 V
• Current draw will be 3-8 A

20
Microcontroller
4
21
Current ProgressHand-Held Unit Testing
Indicator Light
PIC 18
Push Button
22
Current ProgressLight Testing
23
Timeline
24
References

• 1 Photo of Linx TRM-418-LT, Linx, September
  30, 2008. Online. Available
  http//www.linxtechnologies.com/Products/RF-Modul
  es/LT-Series-RF Transceiver-Module/
• 2 Photo of Microchip MRF24J40, Microchip,
  September 30, 2008. Online. Available
  http//www.microchipdirect.com/ProductSearch.aspx?
  KeywordsMRF24J40
• 3 Photo of DigiXBee 802.15.4 OEM RF Module,
  Microchip, September 30, 2008. Online.
  Available http//www.digi.com/products/wireles
  s/point-multipoint/xbee- series1module.jsp
• 4 Photo of PIC18F242, Microchip, September
  23, 2008. Online. Available
  http//www.ece.msstate.edu/reese/ece3724/labs/dat
  asheets/pic18fxx2.pdf
• 5 Question, September 23, 2008. Online.
  Available http//thestartingfive.net/wp-content/
  uploads/2008/02/question.jpg

25
Questions
5