"Sun Chaser" - Light Orienting Device (LOD) Project

Inventor:

• Troy Sieusankar

Purpose:

• To turn a solar panel(s) towards a source of light; for example, the sun, a flashlight, etc. This device will be able to reposition itself as the direction of a light source changes.

• The first stage of development would be to create horizontal (on the x and z axes) rotational adjustment (clockwise/counterclockwise movement to be determined). The second stage would be to have tilt adjustment (on the y axis). The third stage would be to have a light intensity distinguishing circuit that focuses on a brighter light source; for example, distinguishing between a flashlight and the sun.

Benefits:

• This device will maximize voltage and current outputs, by orienting towards a light source.

• There will be no need for human input, since the LOD would be self adjusting towards the changing direction of a light source.

• Cost for parts and production will be minimized by implementing simple electronic components, by avoiding the use of more expensive and complex microprocessors or microcontrollers, and avoiding the need for any programming. 

• This device will be cheaper to construct and less expensive to sell, than other light orienting devices.

Construction Process:

• Implement electronic light sensor(s) to detect light. (This is a power saver circuit that will turn off the system whenever light isn’t present.)

• Build a platform that rotates by an electric motor(s). 

• Implement electronic circuit that turns on a motor(s) that will rotate a platform towards a light source. (The solar panel will rest on the platform.) 

• Build a solar panel mount that adjusts its angle of inclination by a motor(s), electromagnet(s), or weight adjustments. (Optional, due to time constraints.)

• Implement electronic circuit that will tilt the angle of inclination of the solar panel for more intense light exposure. (Optional, due to time constraints.) 

• Implement electronic circuit that will be able to distinguish the brighter, more intense, of two (or more) light sources. (Optional, due to time constraints.)

Follow these links for demonstration, circuit, and tips videos:

• http://www.radioshackdiy.com/project-gallery/light-seekingorienting-device 
• http://www.youtube.com/watch?v=_WbWUffjAGc&feature=share 
• http://www.youtube.com/watch?v=dBYfNexDmKM