Research Article
Health Monitoring System with Hybrid Laser Sensor Networks and Cloud Computing for Subway Tunnels
Table 2
Initial angle and coordinates of the infrared laser rangefinder.
| Infrared laser rangefinder | Angle | Coordinate (m) | α | β |
| No. 1 | 44 | — | (−1.16, 0, 0.19) | No. 3 | 45 | — | (1.04, 0, 0.16) | No. 5 | 27 | 20 | (−0.64, 069, 0.13) | No. 7 | 27 | 20 | (0.56, 0.68, 0.12) |
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