| Issue |
E3S Web Conf.
Volume 165, 2020
2020 2nd International Conference on Civil Architecture and Energy Science (CAES 2020)
|
|
|---|---|---|
| Article Number | 04049 | |
| Number of page(s) | 4 | |
| Section | Civil, Architectural Engineering | |
| DOI | https://doi.org/10.1051/e3sconf/202016504049 | |
| Published online | 01 May 2020 | |
Research and design of LED indoor positioning system
College of Information Engineering, Jilin Engineering Normal University-China No.3050 kaixuan road Changchun city, Jilin, China
* Corresponding author: liuyinhui@jlenu.edu.cn
According to indoor positioning requirements, the light intensity sensing circuit is designed with LED as the light source. The function relationship between light intensity and distance is obtained by fitting the experimental data. The distance from the light source to the node to be located is calculated. The coordinate position of the node to be measured on the two-dimensional plane is obtained through the trilateral measurement and positioning algorithm. The experimental results of this system show that the absolute position error is less than 10cm, which can meet the needs of a large number of indoor positioning applications.
© The Authors, published by EDP Sciences, 2020
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