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Route guidance method and apparatus for visually impaired using visible light communication inside subway station

  • US 10,441,494 B2
  • Filed: 09/17/2014
  • Issued: 10/15/2019
  • Est. Priority Date: 09/15/2014
  • Status: Active Grant
First Claim
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1. An apparatus for guiding a visually impaired in a subway station by using a visible light communication, the apparatus comprising:

  • a reception unit configured to receive an optical signal from a visible light illumination device installed in the subway station and to extract a guidance information included in the optical signal;

    a storage unit configured to store a route history information; and

    an analysis unit configured to provide at least one of the guidance information or a recommended route from the subway station to a destination based on the guidance information and the route history information;

    wherein the analysis unit is configured to confirm an information on visits of the visually impaired to the subway station based on the guidance information and the route history information, and to accordingly provide the visually impaired with at least one of the recommended route or the guidance information; and

    wherein the analysis unit is configured, when the number of the visits of the visually impaired to the subway station is confirmed to be equal to or greater than a predetermined number of times based on the information on the visits of the visually impaired to the subway station, to analogize a final destination of the visually impaired based on the route history information, to generate the recommended route starting from a current location of the visually impaired and ending at the final destination, and to provide the visually impaired with a generated recommended route.

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