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Single-lamp visible light positioning method

A positioning method and visible light technology, applied in the directions of measuring devices, instruments, surveying and navigation, etc., can solve problems such as failure to work normally, and achieve the effect of expanding positioning coverage, enhancing robustness, and widening application scenarios

Pending Publication Date: 2020-10-16
深圳市南科信息科技有限公司
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Problems solved by technology

[0005] Aiming at the problem that the existing technology of visible light positioning cannot work normally in the case of a shortage of signal sources, a single-lamp visible light positioning method is proposed

Method used

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Embodiment Construction

[0019] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0020] see Figure 1 to Figure 4 , combined with Figure 5 ,, the invention discloses a single lamp visible light positioning method, the method includes:

[0021] Step S1: Modulate the LED light, which is used to transmit the ID of the LED lamp body and obtain the position information of the LED lamp body corresponding to the ID of the lam...

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Abstract

The invention provides a single-lamp visible light positioning method. The single-lamp visible light positioning method comprises: modulating LED lamplight; S2, capturing the modulated LED lamp lightto obtain an LED lamp body ID and LED lamp body position information; S3, measuring the angular velocity, the acceleration and the magnetic induction intensity of the capture device in each axis of the three-axis coordinate system by using a sensor; calculating the angular velocity, the acceleration and the magnetic induction intensity to obtain attitude angle information, and calculating a terminal course angle alpha * of the capture device according to the attitude angle information; and S4, performing positioning algorithm calculation and analysis on the terminal course angle alpha * at themoment t and the LED lamplight picture captured by the capturing device in combination with the LED lamp body position information to obtain the position information of the capturing device at the moment t. The single-lamp visible light positioning method solves the problem that the single-lamp visible light positioning method cannot work normally under the condition of shortage of information sources, promotes the practical application of the visible light communication indoor positioning technology, and has wide market value.

Description

technical field [0001] The present invention relates to the technical field of smart devices, in particular to one. Background technique [0002] Visible light communication technology (referred to as VLC) has greatly filled the rigid demand for commercial indoor positioning with its advantages of high precision, low cost, and easy implementation. At the same time, since visible light communication technology does not generate any radio frequency interference, visible light positioning algorithms also perform well in environments where radio frequency radiation is strictly limited (such as hospitals, nuclear power plants, etc.). Visible light positioning technology (referred to as VLP) modulates LEDs so that each LED flashes brightly and darkly at different frequencies and transmits its position information through the air. The receiving device of the mobile terminal captures the VLP information, processes the captured pictures through image processing technology, demodulat...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C21/20
CPCG01C21/206
Inventor 黄林仪关伟鹏伍文飞
Owner 深圳市南科信息科技有限公司
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