×

POSITION DETECTION SYSTEM

  • US 20150226832A1
  • Filed: 09/23/2014
  • Published: 08/13/2015
  • Est. Priority Date: 02/07/2014
  • Status: Active Grant
First Claim
Patent Images

1. A position detection system comprising:

  • a responder configured to be carried by a user;

    interrogators arranged at a room entrance of each floor and at a plurality of specific places in a room, anda position detection unit configured to detect a floor at which the user exists and a position in a room of each floor at which the user exists,wherein each of the interrogators comprises;

    an interrogator transmission unit configured to transmit interrogator identification information, which is determined by the room entrance of each floor or the place in the room at which the interrogator is provided, and floor identification information, which is determined by a floor at which the interrogator is provided, andan interrogator reception unit configured to receive user identification information from the responder and to transmit the user identification information and the interrogator identification information to the position detection unit,wherein the responder comprises;

    a responder reception unit configured to receive the interrogator identification information and the floor identification information from the interrogator,a current floor identification information storage unit configured to store therein the floor identification information when a transmission source of the received interrogator identification information is the interrogator provided at the entrance, anda responder transmission unit configured to transmit the user identification information to the interrogator in a case where the floor identification information stored in the current floor identification information storage unit coincides with the received floor identification information, and is configured to not transmit the user identification information in case where the stored floor identification information does not coincide with the received floor identification information, when a transmission source of the received interrogator identification information is the interrogator provided in the room, andwherein the position detection unit comprises a position determination unit configured to detect that a position in the room of the floor, at which the user exists, is adjacent to the interrogator, based on the interrogator identification information and user identification information received from the interrogator.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×