our protection scheme for separating humans and cargo integrates a number of advanced technical equipment: ESS/ESN secondary safety light curtain constitutes the first protective barrier; The intelligent identification network is composed of counter-reflective, retro-reflective and diffuse reflective photoelectric sensors; WLM series LED warning lights provide visual alarm; ESRS safety control module realizes system integrated management. The protection scheme has three technological innovations: 1. The intelligent identification algorithm can accurately distinguish between people (mistaken entry) and AGV cars (normal operation), and the identification accuracy reaches 99.99%; 2. Multi-level protection design, the response time is less than 20ms, reaching the safety level of PL d; 3. Adapts to different factory layouts.