System and method for navigation using visible light communications
First Claim
1. A mobile terminal for a navigation system using Visible Light Communications (VLC), the mobile terminal comprising:
- a VLC module for receiving a visible light signal; and
a controller for performing the VLC with at least one of a plurality of lamps illuminating a zone where the mobile terminal is located through the VLC module provided to the mobile terminal, for comparing an IDentification (ID) and location information of the at least one lamp with map information upon receiving the visible light signal from the at least one lamp and for determining a current location of the mobile terminal,wherein the map information comprises location information of each lamp, ID information of each lamp, and ID information of each lamp group corresponding to lamps located in a prescribed zone as one group.
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Accused Products
Abstract
A navigation system and a navigation method inside of a building using Visible Light Communications (VLC) are provided. The navigation system includes a map server, in which map information required to provide a navigation function is stored, for transferring the map information to each lamp, a plurality of lamps, installed in each zone inside of the building and having their respective identifiable and unique IDentifications (IDs), for receiving the map information required to provide the navigation function from the map server, and for generating a visible light signal in response to the received map information by using a VLC module, and a mobile terminal, equipped with a visible light Rx module, for being provided with the map information upon receiving the visible light signal generated from the lamp, and for displaying a map image in response to the provided map information.
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Citations
26 Claims
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1. A mobile terminal for a navigation system using Visible Light Communications (VLC), the mobile terminal comprising:
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a VLC module for receiving a visible light signal; and a controller for performing the VLC with at least one of a plurality of lamps illuminating a zone where the mobile terminal is located through the VLC module provided to the mobile terminal, for comparing an IDentification (ID) and location information of the at least one lamp with map information upon receiving the visible light signal from the at least one lamp and for determining a current location of the mobile terminal, wherein the map information comprises location information of each lamp, ID information of each lamp, and ID information of each lamp group corresponding to lamps located in a prescribed zone as one group. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A navigation method of a mobile terminal for a navigation system using Visible Light Communications (VLC), the navigation method comprising the steps of:
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(a) receiving a visible light signal from a lamp illuminating a zone where a mobile terminal is located, comparing, with map information, an IDentification (ID) and location information of the lamp illuminating the zone where the mobile terminal is located, and determining a current location of the mobile terminal; (b) transmitting, by the mobile terminal, a visible light signal including at least one of input destination information, terminal ID information, and the determined current location information to a lamp while inputting the destination information through the mobile terminal; (c) receiving a response information including optimal path information and the map information as a visible light signal, by the mobile terminal; and (d) displaying, by the mobile terminal, a path image including optimal path information, wherein the map information comprises location information of each lamp, ID information of each lamp, and ID information of each lamp group corresponding to lamps located in a prescribed zone as one group. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
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20. A navigation method using Visible Light Communications (VLC), the navigation method comprising the steps of:
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(a) receiving, by a mobile terminal, a visible light signal including map information from a lamp illuminating a zone where the mobile terminal is located; and (b) comparing, with the map information, an IDentification (ID) and location information of the lamp illuminating the zone where the mobile terminal is located upon receiving the visible light signal and determining a current location of the terminal, and displaying a map image including the determined current location information, by the mobile terminal, wherein the map information comprises location information of each lamp, ID information of each lamp, and ID information of each lamp group corresponding to lamps located in a prescribed zone as one group. - View Dependent Claims (21, 22, 23, 24, 25, 26)
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Specification