AR is Augmented Reality, which is a new technology developed on the basis of virtual reality, also known as mixed reality. It is a technology to increase users' perception of the real world through information provided by computer systems. Virtual information is applied to the real world, and computer-generated virtual objects, scenes or system prompts are superimposed on the real scene, thus enhancing the sense of reality.

To put it more popularly, it is a brand-new human-computer interaction technology, which uses cameras, sensors, real-time calculation and matching technology to superimpose the real environment and virtual objects on the same picture or space in real time and coexist. Through the virtual reality system, users can feel the "immersive" realism experienced in the objective physical world, and also break through the objective limitations of space and time, and feel the experience that cannot be experienced in the real world.