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Visible light and invisible two-dimensional code-based transmission and positioning method

A positioning method and two-dimensional code technology, applied in the field of visible light invisible two-dimensional code, can solve the problems of poor confidentiality, weak anti-interference ability, high cost, etc., and achieve the effect of ensuring cost and saving resources

Inactive Publication Date: 2017-09-22
NANJING UNIV OF POSTS & TELECOMM
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0002] Traditional GPS positioning technology has a large area of ​​blind spots for indoor positioning, so many indoor positioning technologies have been developed one after another, such as indoor positioning technologies based on Bluetooth and WiFi. The accuracy of indoor positioning is much higher than that of GPS positioning technology. However, these positioning technologies also have many disadvantages, such as small coverage area, weak anti-interference ability, poor confidentiality, and high cost; therefore, indoor visible light positioning technology has replaced these positioning technologies and become a new type of indoor positioning technology.

Method used

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  • Visible light and invisible two-dimensional code-based transmission and positioning method
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  • Visible light and invisible two-dimensional code-based transmission and positioning method

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Embodiment Construction

[0022] Embodiments of the invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0023] Such as figure 1 As shown, it is a schematic flowchart of a transmission and positioning method based on a visible light invisible two-dimensional code of the present invention. At the sending end of the indoor visible light positioning system, the LED lights are figure 2 After being arranged in such a way, 40 LEDs always flash alternately according to the frequency P, forming an LED dot matrix, which is arranged on the ceiling of a large supermarket to provide lighting, information transmission and positioning needs.

[0024] At the receiving end of the indoor visible light positioning system, adjust the frequency of the mobile phone camera to the transmission...

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Abstract

The invention discloses a visible light and invisible two-dimensional code-based transmission and positioning method. According to the method, LED dot matrixes are simply arranged, information in the dot matrixes is stored by a table, and functions of indoor visible light positioning and information transmission can be realized through a mobile phone, so that a set of technically feasible scheme is proposed for the application of an indoor visible light positioning technology. The method is mainly used for transmitting information carried in LED dot matrixes to users when normal illumination requirement is satisfied indoors, and realizing the low-cost, simple-application and small-interference visible light positioning which cannot be achieved by indoor positioning such as Bluetooth or WiFi.

Description

technical field [0001] The invention relates to a transmission and positioning method based on a visible light invisible two-dimensional code, and belongs to the technical field of visible light invisible two-dimensional codes. Background technique [0002] Traditional GPS positioning technology has a large area of ​​blind spots for indoor positioning, so many indoor positioning technologies have been developed one after another, such as indoor positioning technologies based on Bluetooth and WiFi. The accuracy of indoor positioning is much higher than that of GPS positioning technology. However, these positioning technologies also have many disadvantages, such as small coverage area, weak anti-interference ability, poor confidentiality, and high cost. Therefore, indoor visible light positioning technology has replaced these positioning technologies and become a new type of indoor positioning technology. Since there is a need for lighting in the room itself, the cost of using...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K19/06H04B10/116G01C11/04G01S11/12
CPCG06K19/06037G01C11/04G01S11/12H04B10/116
Inventor 陈健徐珂
Owner NANJING UNIV OF POSTS & TELECOMM
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