LED lamp-based positioning method and system

A technology of LED lights and positioning methods, applied in positioning, radio wave measurement systems, measurement devices, etc., can solve the problems affecting indoor positioning accuracy, difficult to maintain accurate synchronization of multiple lights, and inaccurate indoor positioning, etc., to avoid multiple lights. The effect of lamp positioning synchronization and improving accuracy

Active Publication Date: 2016-04-13
FUDAN UNIV
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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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  • LED lamp-based positioning method and system
  • LED lamp-based positioning method and system
  • LED lamp-based positioning method and system

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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 the technology of visible light positioning, and discloses an LED lamp-based positioning method and system. The LED lamp-based positioning method includes the following steps that: a transmitting end emits N visible light beams to a receiving end, wherein the N is a natural number greater than 1, the transmitting end includes N LED lamps, each LED lamp emits one visible light beam, and each visible light beam carries a unique address code of one corresponding LED lamp and arrangement information of all the LED lamps; the receiving end acquires position information of the receiving end according to the intensity of various received visible light beams and the address codes and arrangement information carried by various received visible light beams. Compared with the prior art, the method distributes one unique address code to each LED lamp, and allows the visible light beams emitted from various LED lamps of the transmitting end to be separated, wherein the visible light beams emitted from various LED lamps do not have to synchronize, so that multi-lamp positioning synchronization can be avoided, and the accuracy of indoor positioning can be 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 technologies. With the development of visible light communication (Visible Light Communication, referred to as "VLC") technology, LEDs have many advantages when applied to indoor positioning systems. [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, and cannot be...

Claims

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Application Information

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