The Alpha Team

1
The Alpha Team

• Team Members
• Marray Harris
• Sakkina Sikandar-Gani
• Sivanesvaran Ishvaran
• Faculty Advisors
• Dr. Bert Nail
• Dr. James Harden

2
Problem and Solution

• What Is the Problem?
• The heat energy produced by radiation through
  building windows can either aid in lowering
  heating costs in the winter time or aid in
  raising energy cost in summer.
• What can we do about this fact?
• The Solution
• Create a system that knows what time of year it
  is and how much heat radiation there is at a
  particular time of day.
• Based on that information controls how much
  radiation comes inside.

3
Requirements

• Save energy in the summer and
• winter
• Easy to use
• Safe (environmental friendly and all the parts
  and wires will be safely covered)
• Scalable

4
Prototype Overview
UP1-BOARD
TSL 245 photosensor
L293D motor controller
MAX 6510 outside temp. sensor
DC motor
MAX 6510 inside temp. sensor
Window blinds
5
SYSTEM SPECIFICATIONS

• 12V power supply to drive the motor
• Continuous power supply between 7V to 12V to the
  UP1 Board
• Overall system operating voltages is between 4V
  to 12V

6
Flow Chart
RESET
Light Checking Routine
Temperature Checking Routine
Control Shade?
NO
YES
Control Shade (open/close)
7
Time Line

• 8/21/00-9/3/00 gt List as many ideas as
  possible
• 9/4/00-9/10/00 gt Final decision and
  Prototyping the project
• gt Decide on hardware and
  software to use
• 9/11/00-9/24/00 gt Decide on the part to
  use for photo sensor, temperature sensors,
  motor controller and interface to use for
  communication between the parts
• gt Start ordering parts
• 9/25/00-10/8/00 gt Start on ASM chart
• 10/9/00-10/31/00 gt Parts arrived
• gt Start VHDL coding and motor system
• 11/1/00-11/22 gt Test each component
• 11/13/00-11/26/00 gt Working on the whole
  system

8
Individual Contribution

• Marray Harris
• Getting the value(freq) from the photosensor
• Interfacing the photosensor and the UP1-board
• Sakkina Sikandar
• Getting the temperature values from the
  temperature sensors
• Interfacing the temperature sensors and the
  UP1-Board
• Interfacing motor controller and UP1-Board
• Sivanesvaran
• Interfacing the motor controller and the dc motor
• Interfacing the dc motor and the window blinds
• Building a complete model of the system
• Web page updating
• Responsibility will be rotated for Meeting
  minutes.

9
Political Issue

• Federal Section 161 of the Energy Policy Act of
  1992 (EPACT) and Executive Order
• 12902 direct federal agencies to purchase energy
  efficient building products.