At the moment when the iteration of digital museum and smart exhibition hall is accelerated, the traditional mode of static exhibition and code scanning exhibition can no longer meet the needs of mass immersive experience. Nowadays, the offline AR punch card+large-screen linkage interactive scheme based on smart sensing bracelets is becoming the mainstream upgrade direction of science and technology museums, cultural exhibition halls, enterprise exhibition halls and cultural tourism complexes. With lightweight equipment as the carrier, the global link of interaction among users, real-life exhibitions, virtual AR images and super-large screens will be opened, which will turn passive exhibition viewing into active exploration and open a new paradigm of virtual and real integration interaction of venues.The smart AR bracelet has the core advantages of non-inductive adaptation and zero threshold operation. Visitors can participate in the interaction through gestures without downloading the APP or wearing it. Relying on the induction base station and positioning equipment deployed in the exhibition hall, the AR bracelet can accurately capture the user's gesture trajectory and realize intelligent interactive coverage.AR point punching is the core application scenario of the bracelet, which completely revolutionizes the traditional exhibition mode. Reaching out the hand ring will automatically trigger recognition, and link the large LED screen and projection curtain to open the exclusive AR special effect. Whether it is unlocking the digital story of cultural relics, triggering the animation of scene crossing, collecting virtual badges and completing the task of immersive puzzle solving, it can be realized quickly.In addition to point punching, the somatosensory interaction of the bracelet makes the large-screen AR control more scientific and technological. By waving, clenching fists, raising hands and other natural body movements, the audience can control the rotation of the large-screen 3D model, scene switching and special effects triggering from a distance without touching the equipment. At the same time, the bracelet is equipped with vibration feedback mechanism, with large-screen light and shadow, animation and sound effect linkage, to build a "action-vision-touch" three-dimensional immersive experience closed loop, which greatly enhances the interactive fun and immersion. In large-scale theme exhibitions and cultural travel shows, many people can wear bracelets to achieve collaborative interaction, and all employees can light up the global AR scene by synchronous action, creating a collective immersive visual feast with great atmosphere.With the continuous upgrading of immersive digital technology, the future sensor bracelet will integrate more functions such as AI intelligent identification, global data linkage, digital rights exchange, etc. It will not only be an interactive tool for exhibition viewing, but also become the "digital identity key" of offline venues, connecting global services such as punching experience, content unlocking, rights exchange and passenger flow analysis, and continuously empowering smart exhibition halls and digital travel industry to innovate and upgrade.