Intelligent robot is a smart phone 15 years ago, a notebook computer 20 years ago and a home computer 30 years ago. It is a necessary product for the next generation of families. The basic element of a truly intelligent robot is the ability to move, which should be closely combined with the computing power. Robots need to know where they are and where they need to move, that is, they need to have the map function. At present, all companion robots that can build family maps on the market are generally more than 10 thousand yuan, and eggshell robots are the first products to break this price bottleneck, and the market prospect is very good.