Research on AP Signal Characteristics of 3D Indoor Positioning Mechanism Based on WLAN

doi:10.3969/j.issn.1671-1122.2018.06.009

Abstract

Abstract:

Nowadays, the existing GPS position technology has satisfied the positioning requirements of the mobile terminal in the outdoor environment, but it almost fails in the indoor environment, and most indoor positioning solutions are aimed at a small indoor area or on a two-dimensional plane, which is not conducive to promotion or integrated into indoor maps and navigation apps. Therefore, indoor positioning technologies based on various wireless technologies such as infrared, Bluetooth, ultra-wideband, and radio frequency have been proposed, among which the WLAN indoor positioning technology has received extensive attention because of its high cost-performance advantage. However, there is no systematic research on the characteristics of the received signal strength of the AP, which cannot meet the characteristics of the AP properties required for a specific indoor location environment, and cannot guarantee the correctness and rationality of the indoor location mechanism. For this reason, this article has conducted in-depth research on the characteristics of the received signal strength generated by the AP near its location. The distribution, stability, and detectability of RSS over time are discussed especially, and the factors that may interfere with RSS are analyzed. Based on the above conclusions, this paper discussed the applicability of the probabilistic location fingerprinting method in an actual indoor location environment.

Key words: WLAN, positioning technology, three-dimensional indoor positioning, AP signal, RSS features

CLC Number:

TP309

Runshen YU, Haodong MI, Minjun CHEN, Cheng CHENG. Research on AP Signal Characteristics of 3D Indoor Positioning Mechanism Based on WLAN[J]. Netinfo Security, 2018, 18(6): 67-76.

Figures/Tables 16

References 18

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