Full-simulating sun-moon-earth instrument

Abstract

The invention relates to a full-simulating sun-moon-earth instrument which comprises a sun rotation and lighting device, an earth rotation device, an earth revolution device, a moon rotation device, a moon revolution device, an earth-moon rising and dropping device, and speed regulating and control circuits, wherein the earth-moon rising and dropping device is arranged at the external end of a long arm of the earth revolution device; the earth rotation device, the moon revolution device, the moon rotation device and the moon rising and dropping device are arranged on the earth-moon rising and dropping device; all the devices above run around the sun at the centre; and the full-simulating sun-moon-earth instrument is characterized in that the earth synchronously rises and drops during performing the revolution around the sun, and the moon synchronously rises and drops during performing the revolution around the earth; with the adoption of the composite motion, the due intersect angles can be formed between an earth revolution orbit plane and the sun equator plane and between a moon revolution orbit plane and the earth equator plane; the speed ratio of the sun to the moon to the earth under the rotation and the revolution can be similar to the actual speed ratio by carrying out electronic speed regulating; and the star image drawn on a transparent celestial sphere is similar to the actual star image, therefore, the running of the three balls can be comprehensively and really displayed in a three-dimensional and vivid way, and the running rules and resulting astronomical phenomena and the natural phenomena can be popularly and quickly indicated; and the practical significance is brought to popularization of the astronomical knowledge.

Description

technical field [0001] The invention belongs to a three-sphere demonstration teaching aid for the heliosphere, the earth and the moon, and particularly relates to a fully simulated three-sphere instrument. Background technique [0002] At present, there are many kinds of domestic three-sphere products and patented technologies, but none of them can fully simulate and demonstrate the operation of the three-sphere of the sun, earth and moon. The education sector needs a more comprehensive three-sphere instrument to assist teaching, and the market needs higher technical performance. product upgrades. At present, the deficiencies in the three-ball instrument products and patented technologies mainly include: 1. They use the ecliptic coordinate system, among which large-scale three-ball instruments such as: the flying saucer three-ball instrument of Suzhou Yulong Science and Education Equipment Co., Ltd., Zhejiang Kangbei The luxurious three-sphere spheres of Science and Educati...

AI Technical Summary

Problems solved by technology

3. The stars and constellations are not drawn on the hemispherical transparent celestial sphere, and only the constellations of the zodiac are drawn on the fixed flat disc under the three spheres. When the earth revolves, it can only indicate that the heliosphere and the earth turn to a certain zodiac sign The orientation of a constellation, but it cannot indicate to a certain zodiac constellation on the celestial sphere, and the demonstration is not in place, such as: the multi-functional three-ball instrument of Nanjing Nanda Tianzun Electronics Co., Ltd., and the three-ball instrument of Wuhan Jindi Electronic Technology Co., Ltd. Instruments, etc. These products and technologies cannot demonstrate the seasonal changes of the starry sky and other astrological phenomena. Originally, the transparent celestial sphere painted with astrology images can be used for more functional demonstrations. Because it does not draw astrology images, the transparent celestial sphere is useless or has little effect

4. The moon can revolve but not rotate, let alone demonstrate that the moon always faces the earth when it rotates and revolves

5. The heliosphere can emit light but not rotate, and the demonstration function is lacking

6. The transmission mechanisms of the earth and the moon are exposed in the transparent celestial sphere, which affects the perception

7. There are few control functions, and it is not possible to control any one of the three balls to rotate or revolve independently, which is not convenient for a special demonstration

8. Only one kind of power supply can be used, and the conditions and environment of use are limited

In short, these products and patented technologies cannot completely simulate the three-ball operation due to their design concept and their own structure, or the degree of simulation is poor.

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