Light emitting diode positioning system based on a lamp stripe

Huichao Lv; Lihui Feng; Aiying Yang; Bo Lin; Heqing Huang; Shufen Chen

doi:10.1117/1.OE.58.4.046103

6 April 2019 Light emitting diode positioning system based on a lamp stripe

Huichao Lv, Lihui Feng, Aiying Yang, Bo Lin, Heqing Huang, Shufen Chen

Author Affiliations +

Optical Engineering, Vol. 58, Issue 4, 046103 (April 2019). https://doi.org/10.1117/1.OE.58.4.046103

Abstract

Because traditional indoor locations of visible light usually need improvement in terms of the lighting environment and changes to the layout of light emitting diodes (LEDs), we propose a method that uses a lamp stripe mounted to the wall to send signals and uses an iterative method to estimate the distance between the photodetector (PD) and the lamp stripe, then the position of PD is obtained by geometric method. This method can adjust the position of PD without changing the original lighting layout, thus greatly reducing the workload of changing the layout of LEDs in traditional indoor visible light positioning methods. A positioning accuracy of 0.12 m is obtained in a 2 m × 2 m area. This method can be used in some applications that require only two-dimensional positioning, such as sweeping robots and automated guided vehicles.

Citation Download Citation

Huichao Lv, Lihui Feng, Aiying Yang, Bo Lin, Heqing Huang, and Shufen Chen "Light emitting diode positioning system based on a lamp stripe," Optical Engineering 58(4), 046103 (6 April 2019). https://doi.org/10.1117/1.OE.58.4.046103

Received: 5 November 2018; Accepted: 14 March 2019; Published: 6 April 2019

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