P08427: LED Lighting Technologies for a Sustainable Entrepreneurial Venture
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System Level Design

Table of Contents

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Product Architecture

Complete System

Throughout the concept generation phase of the project the following system diagram was used to help define the necessary components of the product. The below system architecture gives a high level path for how the product intends to take the input (Human Power) and produce the desired output (Usable Light).

System Level Block Diagram

System Level Block Diagram

Subsystems

Using the same general idea as the previous diagram, the following two block diagrams show the subsystem architecture for the power and light modules. The power module takes an input of human power and outputs electrical power via the charging outlets. The light module take the input of electrical power and outputs usable light via the LED.

Power Module Subsystem

Power Module Block Diagram

Power Module Block Diagram

Light Module Subsystem

Light Module Block Diagram

Light Module Block Diagram

Power Path & Component Interaction

The operator of the power module converts his "human power" to mechanical power on the bicycle. The mechanical power is then converted to electrical power through the generator and then conditioned so that it is constant current DC power at the correct voltage for charging the batteries. The lighting module takes on this conditioned power and stores it in a battery system. During use, the electrical power is further conditioned and regulated before entering the LED. The LED converts the electrical power to usable light which is then dispersed and softened through the use of a lens.

Geometric Layouts

Power Module

Power Module

Initial Light Module Concept

Initial Light Module Concept

Final Light Module Design

Final Light Module Design


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