Review Article
Routing in Industrial Wireless Sensor Networks: A Survey
Table 1
Industrial applications classification.
| Category | Class | Application | Description |
| Safety | 0 | Emergency action | Always critical | Control | 1 | Closed loop regulatory control | Often critical | Control | 2 | Closed loop supervisory control | Usually noncritical | Control | 3 | Open loop control | Human in the loop | Monitoring | 4 | Alerting | Short-term operational consequence. For example, event-based maintenance | Monitoring | 5 | Logging and downloading/uploading | No immediate operational consequence. For example, history collection, sequence of events, and preventive maintenance |
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