Patent ID: 8466777

Claim:
A target object detection server for: communicating wirelessly to an autonomous mobile robot detector which detects by using a RFID detection tag mounted on an autonomously movable target object whether or not the target object exists in a surrounding area of the detector, and connecting through a network with one or more RFID receivers which are arranged in a surrounding area of the target object and receive a radio wave transmitted from the detection tag in response to the tag receiving a detector-transmitted radio wave from the detector, the target object detection server comprising: a receiver information acquiring unit which obtains information associated with an receiver ID for identifying the receiver; the information including at least the tag identification number, electric field strength, and a reception time, by transmitting the information from the receiver, if the receiver receives a radio wave transmitted from the detection tag; a radio wave including information on the tag identification number for identifying the detection tag, target position acquiring unit which obtains information on a target object position indicating where the target object is, based on receiver information obtained by the receiver information acquiring unit, and an arrangement position of the receiver which is associated beforehand with the receiver ID, a target position transmitter for transmitting to the detector the information on the target object position obtained through the target position acquiring unit, a task data storing unit which stores a task in which the tag identification number of the detection tag mounted on the target object is associated beforehand with a motion which the detector executes for the target object, and a traveling control unit which instructs the mobile robot to travel toward a target object, if the tag identification number associated with the task stored in the task data storing unit is identical with the tag identification number included in the receiver information, when the mobile robot can not receive the radio wave transmitted from the detection tag and only the receiver can detect the transmitted radio wave.