Research Article
Indoor PDR Positioning Assisted by Acoustic Source Localization, and Pedestrian Movement Behavior Recognition, Using a Dual-Microphone Smartphone
Table 1
Comparison of the latest indoor positioning methods.
| | Solution | Principle | Precision (m) | Dimension | Coverage area () | Cost ($/) | Compatible with smartphone |
| | Bluetooth | Trilateral positioning | <2 | 2D | 30 | 0.4 | Yes | | WiFi | Fingerprint positioning | <2 | 2D | 50 | 0.6 | Yes | | PDR | Track estimation | <4 | 2D | / | / | Yes | | UWB | Trilateral positioning | <0.04 | 3D | 100 | 60 | No | | Acoustics | Trilateral positioning | <0.3 | 3D | 60 | 0.9 | Yes |
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