Pedestrian dead reckoning based on ambient light correction

doi:10.13474/j.cnki.11-2246.2020.0028

Abstract

Abstract: Aiming at the problem of low positioning accuracy, high combination positioning cost and difficulty to realize in indoor positioning, a method of correcting pedestrian track calculation (PDR) using ambient light assistance is proposed. This method uses the acceleration, gyroscope and magnetometer datacollected by the smartphone to realize the PDR position estimation. At the same time, the light intensity sensor of the mobile phone is used to obtain the ambient light intensity information of the location in real time, the collected indoor ambient light intensity information is used to correct the cumulative error generated in the PDR trajectory. After the experimental data analysis, this method can effectively solve the cumulative error produced in the PDR trajectory, it can provide positioning technology for large supermarkets, underground parking lots, tunnels, mines and other areas with stable indoor illumination intensity.

Key words: indoor positioning, PDR, ambient light, location estirnation, cumulative error

CLC Number:

P228

TAO Xiaoxiao, LU Xiaoping, DAI Wenchen, YU Zhenbao, ZHANG Dongmei. Pedestrian dead reckoning based on ambient light correction[J]. Bulletin of Surveying and Mapping, 2020, 0(1): 132-135,141.

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