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A positioning method and system based on LED lights

A technology of LED lights and positioning methods, applied in positioning, radio wave measurement systems, instruments, etc., can solve problems such as difficulty in maintaining accurate synchronization of multiple lights, affecting indoor positioning accuracy, and inaccurate indoor positioning, so as to improve accuracy, Avoid the effect of multi-light positioning synchronization

Active Publication Date: 2018-07-10
FUDAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Although LED-based VLC positioning technology has many advantages, it is difficult to maintain precise synchronization between multiple lights, resulting in inaccurate indoor positioning
In addition, the interference between lights also affects the accuracy of indoor positioning

Method used

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  • A positioning method and system based on LED lights
  • A positioning method and system based on LED lights
  • A positioning method and system based on LED lights

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Embodiment Construction

[0026] 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.

[0027] The first embodiment of the present invention relates to a positioning method based on LED lights, the specific process is as follows figure 1 shown, including the following steps:

[0028] Step 101, transmit N channels of visible light from the transmitting end to the receiving end. Wherein, N is a natural number g...

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Abstract

The invention relates to visible light positioning technology, and discloses a positioning method and system based on LED lights. In the present invention, the positioning method based on LED lamps includes the following steps: transmitting N channels of visible light from the transmitting end to the receiving end; wherein, N is a natural number greater than 1, and the transmitting end includes N LED lamps, and each LED lamp emits one channel respectively. Visible light, and each channel of visible light carries the unique address code of the corresponding LED lamp and the layout information of each LED lamp; the receiving end obtains the location of the receiving end according to the intensity of the received visible light and the address code and layout information it carries information. Compared with the prior art, a unique address code is allocated to each LED lamp, so that the visible light emitted by each LED lamp at the transmitting end can be distinguished, and the visible light emitted by each LED lamp does not need to be synchronized. In this way, the problem of multi-lamp positioning synchronization is avoided, and the accuracy of indoor positioning is improved.

Description

technical field [0001] The invention relates to visible light positioning technology, in particular to a positioning method and system based on LED lights. Background technique [0002] In recent years, white light-emitting diodes (LEDs) have been widely used in various fields such as lighting, communication and sensing technology. With the development of visible light communication (Visible Light Communication, referred to as "VLC") technology, the application of LEDs in indoor positioning systems has many advantages. advantage. [0003] Existing positioning systems are mainly based on the Global Positioning System (GPS) and radio wave technology. GPS positioning will have a large positioning error in the indoor environment, so it is not suitable for indoor positioning. Indoor positioning systems based on radio wave technologies (such as WLAN, RFID, UWB, WIFI and Bluetooth, etc.) have affected the quality of positioning due to factors such as electromagnetic interference,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S5/16
Inventor 迟楠许银帆
Owner FUDAN UNIV
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