Indoor and outdoor collaborative positioning system based on Beidou and Bluetooth

LUO Huafeng; WANG Liuwang; ZUO Haoran; ZHAO Hua; SHI Ruida

doi:10.20193/j.ices2097-4191.2024.0057

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Integrated Circuits and Embedded Systems ›› 2025, Vol. 25 ›› Issue (3) : 73-79. DOI: 10.20193/j.ices2097-4191.2024.0057

Research Paper

Indoor and outdoor collaborative positioning system based on Beidou and Bluetooth

LUO Huafeng ¹ ,
WANG Liuwang ¹ ,
ZUO Haoran ²^,^* ,
ZHAO Hua ² ,
SHI Ruida ²

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Abstract

At present, a single positioning technology cannot achieve good positioning results both indoors and outdoors simultaneously. For example, Beidou positioning technology can achieve high accuracy in outdoor positioning, but its performance in indoor positioning is poor. Bluetooth has high positioning accuracy in indoor positioning but is less effetive in outdoor positioning. Based on the above situation, this paper proposes an indoor and outdoor collaborative positioning technology based on Beidou and Bluetooth positioning. The Beidou and Bluetooth positioning systems are unified in the same coordinate system, and an improved BP neural network is used to achieve seamless switching in all scenarios. At the same time, a positioning fusion strategy is introduced for indoor and outdoor buffer areas to improve positioning accuracy. The experiment results show that in all scenarios, the average positioning error of the collaborative positioning system has increased by 0.7%, 31.7% and 2.4% compared to a single positioning system, respectively, proving the effectiveness and accuracy of the method.

Key words

indoor and outdoor collaborative positioning / Beidou positioning / Bluetooth positioning technology / BP neural network

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LUO Huafeng , WANG Liuwang , ZUO Haoran , et al . Indoor and outdoor collaborative positioning system based on Beidou and Bluetooth[J]. Integrated Circuits and Embedded Systems. 2025, 25(3): 73-79 https://doi.org/10.20193/j.ices2097-4191.2024.0057

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