PROBLEM TO BE SOLVED: To provide a high-quality waiter service in an energy saving mode by reasonably operating two or more mobile robots.;SOLUTION: The time when each mobile robot 100 can arrive at a cooked object delivery place 14 is predictively calculated based on a status information of each mobile robot 100, one robot 100 first to arrive is selected, and a processing is executed for making the selected robot 100 deliver the cooked object.;COPYRIGHT: (C)2012,JPO&INPIT
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