The development trends of smart turnstiles cover four core directions: lightweight structure, intelligent monitoring capability, contactless payment and big data analytics. To tackle the drawbacks of traditional turnstiles, LEGATE draws on its professional strengths and years of experience to conduct in-depth research on high-efficiency intelligent passage technology. Among various 3D computer vision recognition algorithms, the depth-image binocular stereo vision recognition technology originally used in navigation scenarios perfectly satisfies the application demands of high-efficiency intelligent passage systems.