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Visible light positioning system and method

A positioning system and visible light technology, applied in positioning, radio wave measurement systems, measuring devices, etc., can solve the problems of inaccurate target positioning, easy interference of optical signal strength changes, etc., and achieve low cost, easy implementation, and simple calculation Effect

Inactive Publication Date: 2014-09-10
南京复实通讯科技有限公司
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Problems solved by technology

However, variations in optical signal strength are susceptible to interference, resulting in imprecise positioning of targets

Method used

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  • Visible light positioning system and method
  • Visible light positioning system and method
  • Visible light positioning system and method

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Embodiment Construction

[0020] In order to make the object, technical solution and advantages of the present invention clearer, various embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. However, those of ordinary skill in the art can understand that, in each implementation manner of the present invention, many technical details are provided for readers to better understand the present application. However, even without these technical details and various changes and modifications based on the following implementation modes, the technical solution claimed in each claim of the present application can be realized.

[0021] The first embodiment of the present invention relates to a visible light positioning system, which includes a transmitting end and a receiving end. Wherein, the receiving end is set on the target to be positioned.

[0022] Specifically, the emitting end contains at least two LED lamps, and each LED lamp is equipped w...

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Abstract

The invention relates to a visible light positioning technology, and discloses a visible light positioning system and method. The visible light positioning system comprises a transmitting end and a receiving end, wherein the transmitting end comprises at least two LED (Light-Emitting Diode) lamps; each LED lamp is correspondingly provided with a polarizer; visible light emitted by the LED lamp passes through a corresponding polarizer to obtain linear polarized light in different polarization directions, and is transmitted to the receiving end; the receiving end comprises a detector and at least one polarization analyzer arranged on the detector; the polarization directions of each polarizer and each polarization analyzer assume a preset angle; the receiving end acquires the position information of the receiving end according to the intensity of the linear polarized light which is received by the detector and permeates each polarization analyzer. The direction of the linear polarized light can be determined accurately, and the receiving end is positioned by using the intensity of the linear polarized light in different polarization directions. The visible light positioning system has the advantages of high accuracy, easiness in calculation and implementation, and low cost.

Description

technical field [0001] The invention relates to a visible light positioning technology, in particular to a visible light positioning system and method. Background technique [0002] At present, the positioning accuracy of visible light positioning technology, especially in the field of indoor navigation, is generally not high compared to the existing commonly used positioning technologies. [0003] For example, for a visible light positioning system using an Arrival Of Angle (Arrival Of Angle, AOA for short) technology, this technology determines the angular relationship of the target relative to the signal transmitter according to the angle of arrival of the signal. Specifically, the detector array is used to calculate the angle between the LED light (signal transmitter) and the target (signal receiver), and the position of the target is calculated based on the calculated angle between the LED light (signal transmitter) and the target (signal receiver) , however, this tech...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S5/16
CPCG01S5/16
Inventor 迟楠王源泉
Owner 南京复实通讯科技有限公司
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