Self-moving robot, map building method, and map invoking method for combined robot

A map building method, comprising:

• step 100:
• generating two-dimensional map information of a working surface;
• and
• step 200:
• collecting spatial height information above the working surface in real time and overlaying the spatial height information to the two-dimensional map information of the working surface to obtain and save three-dimensional map information of a working region.

A map invoking method comprising:

• a self-moving robot of a combined robot invoking two-dimensional map information and conducting a walking operation on a two-dimensional working surface, when the self-moving robot works individually, wherein:
• the combined robot comprises the self-movement robot and a functional module combined and connected with the self-movement robot;
• and
• a storage unit is configured to store the two-dimensional map information and three-dimensional map information of a working region.

A map invoking method comprising:

• a combined robot invokes three-dimensional map information and conducts a walking operation on a three-dimensional working region, when a self-moving robot of the combined robot is combined and connected with a functional module, wherein:
• the combined robot including the self-moving robot and the functional module combined and connected with the self-moving robot;
• and
• a storage unit configured to store two-dimensional map information and the three-dimensional map information of a working region.