A visible light positioning system based on binocular vision algorithm

By using binocular vision algorithms in the visible light positioning system, using binocular cameras and modulation transmitter technology, the problem of poor indoor signal blocking and environmental adaptability of traditional systems is solved, and high-precision 3D positioning under occlusion is achieved.

CN116224229BActive Publication Date: 2025-04-18QUANZHOU INST OF EQUIP MFG +1
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Patent Information

Application Number
CN202310303684.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-03-27
Publication Date
2025-04-18
Estimated Expiration
2043-03-27

AI Technical Summary

Technical Problem

Traditional visible light positioning systems are susceptible to signal blocking in indoor environments, resulting in low positioning accuracy and poor environmental adaptability, which makes them unable to work normally under occlusion.

Method used

A visible light positioning system based on binocular vision algorithm is adopted. The coordinate information of the LED transmitter is obtained through measurement and encoding and modulation. The positioning receiving end uses the long and short exposure of the binocular camera to obtain the modulated image, decode and obtain the LED coordinate information, and calculate the camera coordinates based on the camera posture.

Benefits of technology

It overcomes the failure of positioning in the traditional visible light positioning system under occlusion, and realizes 3D positioning based on the environmental reflected light, and requires only one LED to achieve high-precision positioning, improving the environmental adaptability of the system.

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Abstract

The present invention relates to the fields related to optical camera communication technology and visible light positioning technology, and discloses a visible light positioning system based on a binocular vision algorithm, including a modulation transmitting end and a positioning receiving end; the system overcomes the disadvantage that a traditional direct line-of-sight visible light positioning system cannot locate under occlusion, and 3D positioning can still be achieved through an ambient reflection light system, and only one LED is required to achieve high-precision positioning, which greatly improves the environmental adaptability of the system; at the same time, compared with the traditional satellite positioning method, the system effectively improves the problem of poor indoor environmental signals and ineffective navigation.
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