System and method for communication with a mobile device via a positioning system including RF communication devices and modulated beacon light sources
First Claim
Patent Images
1. A mobile device, comprising:
- a radio frequency transceiver;
a hardware user interface;
a camera configured to receive a visual light communication; and
a processor configured to;
receive a radio frequency identifier of a lighting device via the radio frequency transceiver;
receive via the camera a modulated light identifier of a lighting device in the vicinity of the mobile device;
combine the radio frequency identifier and the modulated light identifier to form a combined lighting device identifier; and
receive position information related to the mobile device based on the combined identifier.
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Abstract
A light source emits a modulated light, and a radio-frequency transceiver disposed therewith emits a radio-frequency signal. A mobile device may receive either or both signals and determine its position based thereon. The light and radio-frequency sources may be disposed in node in a network of said sources, and the nodes may communicate via the radio-frequency transceivers.
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Citations
11 Claims
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1. A mobile device, comprising:
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a radio frequency transceiver; a hardware user interface; a camera configured to receive a visual light communication; and a processor configured to; receive a radio frequency identifier of a lighting device via the radio frequency transceiver; receive via the camera a modulated light identifier of a lighting device in the vicinity of the mobile device; combine the radio frequency identifier and the modulated light identifier to form a combined lighting device identifier; and receive position information related to the mobile device based on the combined identifier. - View Dependent Claims (2, 3, 4, 5)
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6. A method, comprising:
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receiving an identifier of a lighting device via a radio frequency transceiver of a mobile device; receiving at a camera of the mobile device an optical identifier of a lighting device; combining the lighting device identifier and the optical identifier to form a combined identifier of the light device in a vicinity of the mobile device; sending the combined identifier to a host processor; and receiving position information based on the combined identifier sent to the host processor. - View Dependent Claims (7, 8)
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9. A system, comprising:
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a first lighting device comprising; a first radio frequency transceiver; a first light source configured to output a modulated light signal unique to the first lighting device, the first lighting device configured to; transmit a first radio frequency identifier identifying the first lighting device, via the first radio frequency transceiver in a first radio frequency detection area, and emit a first modulated light signal from the first light source, in a first modulated light detection region; a second lighting device comprising; a second radio frequency transceiver; a second light source configured to output a second modulated light signal unique to the second lighting device, the second lighting device configured to; transmit a second radio frequency identifier identifying the second lighting device, via the radio frequency transceiver in a second radio frequency detection area, and emit a second modulated light signal from the second light source in a second modulated light detection region, wherein; the first radio frequency detection area and the second radio frequency detection area overlap one another; and the first modulated light detection region and the second light detection region are non-overlapping; and a mobile device, comprising; a processor, a radio frequency transceiver; and a camera, the mobile device configured to; receive the first radio frequency identifier via the mobile radio frequency transceiver, identifying the first lighting device; receive the second radio frequency identifier via the mobile device radio frequency transceiver identifying the second lighting device identifier; receive via the camera either the first or the second modulated light signal; and in response to receiving a first modulated light signal by the camera, the first radio frequency identifier, and the second radio frequency identifier, determine that the mobile device is in a position closer to the first lighting device than to the second lighting device. - View Dependent Claims (10, 11)
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Specification