Top grade design is a security patrol robot built for AOMAITE. We hope to get rid of the appearance and modeling of functional devices and adopt an integrated and dynamic design language, so that the product level is clear and reasonable, the light and shadow under different light changes variously, and the rich detail processing makes the product both modern and professional. The turning point of the block surface and the rich lighting highlight the sense of technology of the product. Although there are rich curved surfaces and light and shadow changes, the appearance of black, white and gray as the main color gives people a simple feeling.