Patent ID: 8180486

Claim:
A mobile robot which communicates by radio with a managing computer via one or more radio base stations coupled to the managing computer and autonomously moves in a movement area through use of map data of the movement area, comprising: a radio communication unit for communicating by radio with each of the radio base stations; a radio environment detecting unit for detecting plural types of radio environment data including radio intensity of a signal received by the radio communication unit in radio communication with the radio base station, wherein the radio environment data indicate degrees of goodness of a radio environment of the radio communication; a comprehensive radio environment data calculating unit for weighting the plural types of radio environment data with predetermined weights and calculating comprehensive radio environment data from results of weighting, wherein the predetermined weights comprise intensity of radio wave and communication speed; a self-position detecting unit for detecting a position of the robot in the movement area; a storing unit for storing the map data of the movement area; and a comprehensive radio environment map creating unit for creating a comprehensive radio environment map for each of the radio base stations by writing the calculated comprehensive radio environment data into the map data stored in the storing unit, the calculated comprehensive radio environment data associated with the position detected by the self-position detecting unit when the radio environment data was detected by the radio environment detecting unit.