Introduction to Virtual Football Goalkeeper: "Virtual Football Goalkeeper" is one of the most popular interactive projects among tourists in the Science and Technology Museum. It consists of a projector, photoelectric detection screen, computer control and animation software. When used, the projector projects the computer-animated football field and goalkeeper on the screen wall, and a human kicks the football toward the goal. The goalkeeper then makes a save based on the computer's detection results. Realistic sound effects and vivid performances make visitors feel like they are in a green field, which is full of fun.