Abstract
Human being is seriously threatened by exhausting mineral fuel，such as oil and coal. These mineral fuels are one-off and non-reprodueible sources and have limited reserves.When they are bumed, a great deal of carbon dioxide will release.The consequenees of it are global temperature hoist and entirorunent deteriorating. As a kind of new type of nergy sourees， solar energy has the advantages of unlimited reserves,existing everywhere,use clean and economieal. But it also has disadvantages, such as low density,intermission,change of space distributing and so on.These disadvantages induce that solar energy equipment,like solar energy water heater and solar battery,has the low using percent of solar energy
Solar automatic tracking system according to the local latitude and longitude of automatic detection day and night, and the application of solar radiation and brightness of the environment compared to the automatic tracking system makes the accuracy, reliability, in the course of sunny real-time detection to keep the correct time and angle data, due to seasonal changes and eliminate the accumulated error. On cloudy days when the automatic rotation through comparison to the previous sunny location. Even if the weather changes in the complicated circumstances, the system can also work to enhance the efficiency of the utilization of solar energy.
The main works of the paper are optieal image part design，hardware and software of the
system，doing and debugging the cireuit board，implement part design and so on.At the beginning of the paper，the system whole design notion and the final capaeity target are put forward.Detail technieal information of module design is narrated in each chapter.Aitheend of paper，somesuggestionsforsystemoPtimizationareProvided.
Keywords：solar energy，light sensor，makes a reservation automatically，One-chip computer
