Navigation map updating method and apparatus and robot using the same

A robot comprising:

• a non-transitory memory;
• a sensor;
• and
• a processor electrically coupled to the non-transitory memory and the sensor;
• wherein the non-transitory memory stores an existing navigation map, a preset probability grid map, and a computer program executable on the processor, and the computer program comprises:
• instructions for performing a relocalization of the robot;
• instructions for controlling the robot to move along a designated path, and recording key frame data of each frame on the designated path and a corresponding pose, wherein the key frame data of each frame on the designated path is obtained by the sensor;
• instructions for creating a navigation map in the non-transitory memory, and copying information in the existing navigation map into the created navigation map to obtain a first navigation map;
• instructions for covering the key frame data of each frame on the designated path onto the first navigation map to obtain a second navigation map;
• instructions for creating a probability grid map in the non-transitory memory, and copying information in the preset probability grid map into the created probability grid map to obtain a first probability grid map;
• instructions for covering the key frame data of each frame on the designated path into the first probability grid map to obtain a second probability grid map;
• and
• instructions for denoising the second navigation map based on the second probability grid map to obtain a third navigation map, and sending the third navigation map to a remote server.