SMART DEVICE PERFORMING LED-ID/RF COMMUNICATION THROUGH A CAMERA, AND SYSTEM AND METHOD FOR PROVIDING LOCATION-BASED SERVICES USING THE SAME
First Claim
1. A smart device performing led-ID/RF communication through a camera, the smart device comprising:
- a visible light transmitting and receiving module having a visible light receiving module receiving a visible light signal including a location information or a data information from a light-emitting source through an image sensor of a camera, and a visible light transmitting module transmitting a visible light signal including a location information or a data information through an LED flash of the camera;
an image-capturing module capturing an image of peripheral region of the light-emitting source through the image sensor of the camera;
a telecommunication module performing RF communication;
a key-input module having a plurality of selection keys;
a display module displaying the data information received by the visible light receiving module;
a location calculating module calculating a present location of a user by a location information of a user, which is received from an access point through the telecommunication module, and the location information of the light-emitting source, which is received from the light-emitting source as a visible light signal; and
a control module transmitting the present location of a user calculated by the location calculating module or data information to another terminal or the light-emitting source through the visible light transmitting module.
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Accused Products
Abstract
The present invention provides a smart device which can receive, by an image sensor of a camera, a visible light signal generated by a light-emitting source such as a lighting apparatus or a display, and which can transmit the visible light signal to another terminal and light-emitting source by an LED flash of the camera, thereby enabling transmission and reception of visible light communication by the camera, which is equipped as standard in the smart device, as well as enabling transmission and relay of data by connecting to RF communication such as WiFi, Bluetooth and UWB. Moreover, the present invention provides a system and a method for providing location-based services which measure an approximate current location of a user by an RF communication access point and measure the current location of the user in detail by receiving a visible light signal, which includes location information, from the light-emitting source, and thus can perform a high-precision indoor location recognition function linking visible light communication and RF communication and can provide guide image information, which comprises various additional information, on the basis of the location information of the user.
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Citations
17 Claims
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1. A smart device performing led-ID/RF communication through a camera, the smart device comprising:
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a visible light transmitting and receiving module having a visible light receiving module receiving a visible light signal including a location information or a data information from a light-emitting source through an image sensor of a camera, and a visible light transmitting module transmitting a visible light signal including a location information or a data information through an LED flash of the camera; an image-capturing module capturing an image of peripheral region of the light-emitting source through the image sensor of the camera; a telecommunication module performing RF communication; a key-input module having a plurality of selection keys; a display module displaying the data information received by the visible light receiving module; a location calculating module calculating a present location of a user by a location information of a user, which is received from an access point through the telecommunication module, and the location information of the light-emitting source, which is received from the light-emitting source as a visible light signal; and a control module transmitting the present location of a user calculated by the location calculating module or data information to another terminal or the light-emitting source through the visible light transmitting module. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A system for providing location-based services using a smart device performing led-ID/RF communication through a camera, the system comprising:
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at least one light-emitting source generating visible light having location information of its own; a smart device calculating a present location of a user by a location information of a user, which is received from an access point, and the location information of the light-emitting source, which is received from the light-emitting source as a visible light signal; and a location-based information sever generating a guide image information including additional information according to the location information of a user, which is received from the smart device, to provide the smart device with the guide image information. - View Dependent Claims (10, 11, 12, 13)
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14. A method for providing location-based services, the method comprising:
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receiving, by a visible light receiving module of a smart device, visible light signal including location information or data information from a light-emitting source; displaying, by a display module of the smart device, the data information, when the visible light signal includes the data information; calculating a present location of a user by a location information of a user, which is received from an access point through the telecommunication module, and the location information of the light-emitting source, which is received from the light-emitting source as a visible light signal, when the received visible light includes the location information; transmitting the calculated present location information to a location-based information server; and receiving guide image information including additional information generated in accordance with the present location information to display the guide image information through the display module. - View Dependent Claims (15, 16, 17)
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Specification