After several months of busy and learning, design of this paper is nearing completion. Students of the University of the as such of either graduation project due to lack of experience is, if there is no guidance with many having no insufficient instructor supervision, I want to complete is unimaginable, can not be avoided that considering the location design . Here I would like to thank the teacher of lecturer Wang Jin Jin. Weekdays work required, I am from the subject of the selection of the access to information, and each stage of graduation design, open the report to determine the problem, change, medium-term adjustment and a child of the post-paper format another aspect of the Do not test, given the careful guidance, poured you tutor a lot of effort. Her spirit of rigorous scholarship and scientific research, I learned from the usual, and is a positive influence things in my future studies and work. I am, in order to complete the graduation project, to have overcome many difficulties, because it gives guidance and advice, graduate design students, I would like to thank the help of great help in this design to children. To complete the design if there is no effort to help will be very difficult. My graduation project is also, thanks to the university of all teachers in the three years to have given a lot of guidance, there is a they. In the teachings of the teacher, I love the computer, to grasp the solid foundation of professional knowledge, it was injected the driving force of my future of sail. Also, thanks to all the students, but it is the encouragement and your support in order. Graduation project is completed successfully. In all thanks to my classmates, so I that have received a lot of benefits, it makes them with communication. Them, I have the courage and confidence to pursue progress:, support, encouragement and help to understand, thanks to my friend, it is of them on the grounds that I did not shed more meaningful is. Finally, I hope the more brilliant tomorrow alma mater.