Design and research on solar system exhibits

QIN Long1， YAN Si-jie1， LIAO Li-bo2， LIU Xin-xiong1
（1. School of Mechanical Science & Engineering， Huazhong University of Science & Technology， Wuhan 430074， China；
2. School of Civil Engineering & Mechanics， Huazhong University of Science & Technology， Wuhan 430074， China）

Abstract： Aiming at rapidly developing of exhibits design，to convey scientific knowledge and promote the scientific spirit，a solar system moving model was designed based on the heliocentric theory. The movement control cards were employed to control AC servo motors，which were used to drive the revolutions of planets；and the rotations of these planets were driven by DC geared motors. Then，the conductive devices were designed to ensure DC geared motors of reliable power supply. Lastly，personalized human machine interface was developed by using VB software. Results indicate that the system shows the outstanding performance such as good work，structural simplicity，stability，and easy maintenance，etc.. Through human machine interface（HMI），special astronomical phenomena，the astronomical phenomenon in any certain date，and the revolution of the solar system can be displayed.
Key words： solar system；exhibits；movement control cards；servo driving；VB；human machine interface（HMI）