Research Article
An Implementation Approach and Performance Analysis of Image Sensor Based Multilateral Indoor Localization and Navigation System
Table 1
Distance measurement data from an LED at different floor positions.
| Horizontal distance, (cm) | Measured direct distance, (cm) | Actual direct distance, (cm) | Error in distance measurement (cm) | Detected area (px) | Radius, (px) | Radius, (px) |
| 00 | 255.5 | 255.5 | 0 | 348 | 11 | 11 | 10 | 255.88 | 255.9 | 0.02 | 347 | 10 | 20 | 256.65 | 256.7 | 0.05 | 341 | 10 | 30 | 257.6 | 257.7 | 0.1 | 337 | 10 | 40 | 258.85 | 259 | 0.15 | 336 | 10 | 50 | 260 | 260.2 | 0.2 | 330 | 9 | 60 | 262.5 | 262.8 | 0.3 | 324 | 9 | 70 | 264.3 | 264.7 | 0.4 | 314 | 9 | 80 | 267.1 | 267.7 | 0.6 | 306 | 9 | 90 | 269.5 | 270.61 | 1.11 | 298 | 8 | 100 | 272.5 | 274.5 | 2 | 288 | 8 |
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