Table 13.
The time occupancy from ground truth data and UWB estimation for 15 m-by-15 m study area (7 July 2023—after applying speed filter).
| Trial# | UWB Time In | UWB Time Out | GT Time Occupancy | UWB Time Occupancy | Absolute Difference in Time Occupancy |
|---|---|---|---|---|---|
| 1 | 09:24:23.553 | 09:24:24.000 | 0.63 | 0.45 | 0.18 |
| 2 | 09:26:00.581 | 09:26:01.338 | 1.27 | 0.76 | 0.51 |
| 3 | failure | - | 1.17 | - | - |
| 4 | 09:28:34.635 | 09:28:35.294 | 1.20 | 0.66 | 0.54 |
| 5 | 09:29:23.000 | 09:29:24.162 | 1.17 | 1.00 | 0.01 |
| 6 | 09:30:38.567 | 09:30:39.089- | 0.97 | 0.52 | 0.44 |
| 7 | 09:31:52.665 | 09:31:53.025- | 0.83 | 0.36 | 0.47 |
| 8 | 09:32:49.400 | 09:32:50.065- | 1.43 | 0.67 | 0.76 |
| 9 | 09:33:34.748 | 09:33:35.720- | 1.20 | 0.97 | 0.22 |
| 10 | 09:34:28.536 | 09:34:29.540- | 1.10 | 1.00 | 0.09 |
| 11 | 09:35:20.547 | 09:35:21.692 | 1.20 | 1.14 | 0.055 |
| 12 | 09:36:13.721 | 09:36:14.882- | 1.30 | 1.16 | 0.13 |
| 13 | 09:37:13.378 | 09:37:14.451 | 1.17 | 1.07 | 0.09 |
| 14 | 09:38:15.596 | 09:38:16.798- | 1.27 | 1.20 | 0.06 |
| 15 | 09:39:08.722 | 09:39:09.895 | 1.17 | 1.17 | 0.00 |
| 16 | 09:40:23.705 | 09:40:24.733- | 1.13 | 1.03 | 0.10 |
| 17 | 09:41:22.153 | 09:41:23.185 | 1.13 | 1.03 | 0.10 |
| 18 | 09:42:17.233 | 09:42:18.164 | 1.1 | 0.93 | 0.16 |
| 19 | 09:43:17.945 | 09:43:18.886 | 1.03 | 0.94 | 0.09 |
| Average | 0.22 s |