Global positioning demonstration system

The utility model discloses a global positioning demonstration system which is composed of a bench mechanism, a satellite mechanism, an operation mechanism, and a computer system. The satellite mechanism is arranged above the bench mechanism. The operation mechanism is arranged on the front end of the bench mechanism. The bench mechanism includes a bench outer part and a bench inner mechanism. The bench outer part is a glass steel ball outer cover, and a simulated dolly is arranged on the surface of the glass steel ball outer cover. The bench inner mechanism includes a rotation mechanism, a linear movement mechanism, and an elevating mechanism which are formed into one body. The satellite mechanism includes a satellite rotation mechanism, three simulated satellites, a connecting rod, and a connecting suspender. The three simulated satellites are connected with the connecting rod via the satellite rotation mechanism. The connecting suspender is connected with the connecting rod. The satellite rotation mechanism includes an X-directional rotation mechanism and a Y-directional rotation mechanism which are formed into one body. The operation mechanism is an operation handle. The global positioning demonstration system enables a participator to visually understand the scientific principle of the global positioning system, combines the participation with the entertainment, and achieves the target of learning.