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Automatic Light Control Device

Automatic Light Control Device. Team leader: Brad Lowe Team members: Marshalia Green John Thompson Lutrisha Johnson Faculty Advisor: Dr. Robert Reese. Team Responsibilities. Abstract.

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Automatic Light Control Device

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  1. Automatic Light Control Device Team leader: Brad Lowe Team members: Marshalia Green John Thompson Lutrisha Johnson Faculty Advisor: Dr. Robert Reese

  2. Team Responsibilities

  3. Abstract With the current electricity shortage, energy conservation has become a heavy consideration. Although it makes up 17% of all electricity consumed nationally, lighting is often overlooked as a potential source of conserving energy. The automatic light control device will use photoelectric beams to detect and keep track of the occupants of a room, keeping the lights on until the last person leaves. This system could potentially reduce light usage of a room by as much as 55%.

  4. Control Unit Light Sensor Motion Sensor Design Diagram 01

  5. Design Requirements • Power consumption: • System will operate at 120V 60 Hz AC • Control unit will consume a negligible amount of power (< 1.5W). • Size • Control unit must fit in a standard light switch socket (4.5” x 3.5” x 1.5”)

  6. Design Requirements • Installation • Comparable to installing a light switch (can be done by anyone with basic knowledge of electrical wiring) • Life expectancy • Minimum life expectancy of 10 years

  7. Design Requirements • Expandability/Adaptability to Environment • Adaptable to incandescent or fluorescent lights via a toggle switch • Able to manage up to 3 doorways • Optional light sensor can prevent switch operation if light level is high enough from outside sources, such as a window

  8. PIC Microcontroller • Photoelectric Beam Sensors • Motion Detector System Components

  9. Test Specifications

  10. Schematic of Power Supply

  11. Simulation Results of Power Supply

  12. The End

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