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 lighting device comprising:
- an antenna;
a radio frequency (RF) transceiver coupled to the antenna and configured to receive, via the antenna, RF signals from an RF communication enabled devicea light source configured to emit light for illumination;
a memory device storing data and programming instructions; and
a processor coupled to the RF transceiver, the light source, and the memory, wherein the processor, when executing the programming instructions, is configured to perform functions, including functions to;
receive, via the RF transceiver, the RF signals transmitted from the RF communication enabled device;
determine, via the RF transceiver, an angle of arrival measurement based on the RF signals received from the RF communication enabled device; and
based on, at least, the determined angle of arrival measurement, estimate a position of the RF communication enabled device.
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Accused Products
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.
201 Citations
20 Claims
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1. A lighting device comprising:
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an antenna; a radio frequency (RF) transceiver coupled to the antenna and configured to receive, via the antenna, RF signals from an RF communication enabled device a light source configured to emit light for illumination; a memory device storing data and programming instructions; and a processor coupled to the RF transceiver, the light source, and the memory, wherein the processor, when executing the programming instructions, is configured to perform functions, including functions to; receive, via the RF transceiver, the RF signals transmitted from the RF communication enabled device; determine, via the RF transceiver, an angle of arrival measurement based on the RF signals received from the RF communication enabled device; and based on, at least, the determined angle of arrival measurement, estimate a position of the RF communication enabled device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method comprising:
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receiving, via a radio frequency (RF) transceiver coupled to an antenna of a lighting device, RF signals transmitted from an RF communication enabled device; determining, via the RF transceiver of the lighting device, an angle of arrival measurement, of the received RF signals from the RF communication enabled device; based on, at least, the angle of arrival measurement, estimating a position of the RF communication enabled device. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A system comprising:
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a plurality of lighting devices arranged in a network; and a network controller device, the network controller device including; a controller transceiver configured to communicate with the lighting devices in the network, and a controller processor configured to estimate a respective physical location of the lighting devices based on a respective angle of arrival measurement; and each respective one of the lighting devices in the network including; a light source for general illumination; an antenna; a lighting device radio frequency (RF) transceiver coupled to the antenna and configured to receive RF signals from at least one other lighting device of the lighting devices in the network; a memory storing data and programming instructions; and a lighting device processor coupled to the lighting device RF transceiver, the light source, and the memory, wherein the lighting device processor, when executing the programming instructions, is configured to perform functions, including functions to; determine, via the lighting device RF transceiver, the respective angle of arrival measurement of the at least one other lighting device based on the RF signals received from the at least one other RF communication enabled device; and transmit, via the lighting device RF transceiver, the determined respective angle of arrival measurement of the at least one other lighting device to the network controller device for use in estimating the respective physical location of the at least one other lighting device. - View Dependent Claims (18, 19, 20)
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Specification