SYSTEM AND METHOD FOR ESTIMATING THE POSITION AND ORIENTATION OF A MOBILE COMMUNICATIONS DEVICE IN A BEACON-BASED POSITIONING SYSTEM

摘要

An example of a lighting device including a light source, a modulator and a processor. The processor is configured to control the light source to emit light for general illumination and control the modulator to modulate the intensity of the emitted light to superimpose at least two sinusoids. Frequencies of the at least two sinusoids enable a mobile device to infer the physical location of the lighting device.

主权项

1. A device, comprising:
a plurality of sensors including an image sensor and a non-image sensor; a processor coupled to the plurality of sensors; a memory; and software in the memory to be run by the processor, wherein running of the software by the processor configures the device to implement functions, including functions to:
operate the image sensor to capture one or more images including a signal modulated within visible light transmitted from a visible light source located within a space, the signal corresponding to an identity of the visible light source;process the one or more images to determine, based at least in part on the signal, the identity of the light source;acquire a plurality of measurements characteristic of conditions at a location within the space proximate to the visible light source; andrecord, in combination with a predetermined location of the visible light source, the identity of the visible light source and the plurality of measurements.