Aiming at the problems of LED-based visible light positioning system such as unstable illumination, Lambertian model transmission limitation, large positioning error, etc., it is proposed to use PWM to drive the LED, use the curve fitting method to obtain the ranging model, and estimate the target position according to the trilateral algorithm. A positioning system platform based on the microcontroller MiniSTM32 was built to test the performance of the transceiver circuit. The experimental results showed that the positioning error of less than 3 cm was achieved in a space of 80 cm × 80 cm × 80 cm.
References
[1]
Wu, C., Zhu, M. and Zhang, Y. (2017) The Design and Implementation of an Infrared Indoor Positioning and Lighting System. 2017 IEEE 2nd Advanced Information Technology, Electronic and Automation Control Conference (IAEAC).
https://doi.org/10.1109/IAEAC.2017.8054394
[2]
Wang, W., Liu, X., Li, M., et al. (2019) Optimizing Node Localization in Wireless Sensor Networks Based on Received Signal Strength Indicator. IEEE Access, 7, 73880-73889. https://doi.org/10.1109/ACCESS.2019.2920279
[3]
Hara, S. and Anzai, D. (2018) Experimental Performance Comparison of RSSI-and TDOA-Based Location Estimation Methods. VTC Spring IEEE Vehicular Technology Conference, 2651-2655. https://doi.org/10.1109/VETECS.2008.581
[4]
Cossu, G., Presi, M., Corsini, R., et al. (2011) A Visible Light Localization Aided Optical Wireless system. IEEE GLOBECOM Workshops, 802-807.
https://doi.org/10.1109/GLOCOMW.2011.6162565
[5]
Mazuelas, S., Lago, F.A., Gonzalez, D., et al. (2008) Dynamic Estimation of Optimum Path Loss Model in a RSS Positioning System. IEEE/ION Position, Location and Navigation Symposium. https://doi.org/10.1109/PLANS.2008.4569988
