Relying on long-term theoretical accumulation and deep understanding of application scenario requirements and problems, Gold Train independently designed and developed five kinds of 3D vision sensing systems, namely structured light, binocular, iToF, dToF and Lidar, through system simulation, modeling, design planning of core optics and electronic components, etc., which can meet the needs of different application scenarios. And to achieve continuous optimization iteration and innovation, has also developed and reserve the enhanced iToF system based on spot projection, under the screen structured light system and scaffoldless structured light system and other system solutions.