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Use a mobile device with an image sensor to retrieve information associated with a light fixture

A technology for image sensors and mobile devices, applied to beacon systems using electromagnetic waves, image communication, image analysis, etc.

Active Publication Date: 2018-08-03
QUALCOMM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this technique requires the mobile device to learn the RF signal propagation parameters, which presents a considerable technical challenge to achieve high precision (<1 meter) position accuracy

Method used

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  • Use a mobile device with an image sensor to retrieve information associated with a light fixture
  • Use a mobile device with an image sensor to retrieve information associated with a light fixture
  • Use a mobile device with an image sensor to retrieve information associated with a light fixture

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Experimental program
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Embodiment Construction

[0022] Recovery of information associated with a luminaire may be facilitated by placing indicia capable of being illuminated in, on, or adjacent to the luminaire. If the marker is unique, an image of the marker captured at the image sensor of the mobile device can be used to retrieve the unique position of the luminaire. In some cases, the illuminated indicia may comprise a sticker having an array of illuminable colored regions. The decals can in some cases be easily placed on or adjacent to the luminaire, making identification of the luminaire quicker and / or less expensive (eg, relative to replacing it with a visible light communication (VLC) luminaire and / or existing fixtures).

[0023] The following description provides examples, and does not limit the scope, applicability or configuration set forth in the appended claims. Changes may be made in the function and arrangement of elements discussed without departing from the spirit and scope of the invention. Various embod...

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Abstract

This disclosure describes methods, apparatus, systems and apparatus for retrieving information associated with light fixtures using a mobile device equipped with an image sensor. A method of retrieving information associated with a light fixture using a mobile device equipped with an image sensor may include capturing an image of an illuminated sign at the image sensor (905). The illuminated sign may be in the same position as the light fixture. At least one characteristic of the illuminated sign can be determined from the image of the illuminated sign (910). Information associated with the at least one characteristic of the illuminated indicia can be retrieved (915).

Description

[0001] cross reference [0002] This patent application asserts that Jovicic et al. filed on December 11, 2013 and assigned to the assignee of this case, entitled "Use of Mobile Devices with Image Sensors to Retrieve Information Associated with Luminaires (Use of Mobile Device With Image Sensor to Retrieve Information Associated With LightFixture)" U.S. Patent Application No. 14 / 103,832. Background technique [0003] The following generally relates to techniques for detecting information about luminaires in indoor environments. The mobile device can use the detected information about the light fixtures to estimate the location of the mobile device. Accurate estimation of the location of a mobile device in an indoor environment can be useful in several applications, such as navigating a mobile phone user in an office / commercial environment, enabling customers to find items in a supermarket or retail store, coupon issuance and redemption, customer service and Accountability e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S1/70G01S5/16
CPCG01S1/70G01S5/16H04N5/28H04N7/183G06T7/20G06V10/60G06T7/00
Inventor 艾雷克桑达·乔维西克库马尔·阿帕亚
Owner QUALCOMM INC