With the continuous upgrading of the Internet of Things, various terminal sensors are also continuously upgraded.Equipped with high-performance lidar sensors, it can realize the monitoring of people flow, intelligent inspection system, large tank level measurement and new human-computer interaction.Compared with other types of sensors (images, light curtains, ultrasound, etc.), laser scanning sensors have unique application advantages and data characteristics, and have the advantages of long measuring distance, high accuracy, fast speed, and strong resistance to environmental interference.This will undoubtedly greatly improve the intelligence level of the Internet of Things.