High-Speed Indoor Navigation System based on Visible Light and Mobile Phone

High-Speed Indoor Navigation System based on Visible Light and Mobile Phone

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Visible light positioning (VLP) is widely believed to be a cost-effective answer to the growing demand for real-time indoor positioning.However, due to the high computational cost of image processing, most les benjamins ta?l? sweatshirt existing VLC-based systems fail to deliver satisfactory performance in terms of positioning speed and accuracy, both of which are crucial for the performance of indoor navigation.This paper proposes a novel VLP solution that provides accurate and high-speed indoor navigation via the designs of an elaborate flicker-free line coding scheme and a lightweight thorogood 804-3236 image processing algorithm.In addition, this solution has the advantage of supporting flicker mitigation and dimming, which are important for illumination.

An Android-based system prototype has been developed for field tests on an off-the-shelf smartphone.Experimental results show that it supports indoor positioning for users moving at a speed of up to 18 km/h.In addition, it can achieve a high accuracy of 7.5 cm, and the computational time is reduced to 22.

7 ms for single-luminaire and to 35.7 ms for dual-luminaries, respectively.