System Level Design
Table of Contents
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).
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
Light Module Subsystem
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.