← Incidents
criticalawaiting approvalINC-001 · opened 07:52 HST
Zone C (Uka Patch) is critically dry
Lettuce in Zone C · 1.2 ha · Crop water stress likely if irrigation waits until 17:30 (simulated)
Device readings & records
Observed facts
- Device readingZone C soil moisture14% (rule 20%)2 min ago · measured
- DerivedZone C 24h trend−6.4 pts over 24h, still falling2 min ago · estimated
- Simulated forecastWeather: dry, low rain probability next 6h0 mm last 24h · RH 63% · 25.1°C2 min ago · synthetic-model
- Device readingTank 01 level63.0% of 18,000 L3 min ago · measured
- Device readingPump 01 stateIdle · 2.4 bar · no fault3 min ago · measured
Zone C moisture (24h, 15-min samples)
Inference · not confirmed
Possible explanations
Waiting until the scheduled 17:30 run may worsen water stress under assumed crop rules. The dry reading may be associated with the following — none independently confirmed:
Not enough water from the last irrigation run
0.62 heuristic
Supporting
Conflicting
None recorded
Valve C not opening fully
0.23 heuristic
Supporting
Conflicting
Soil probe C1 drifting
0.15 heuristic
Estimated · recalculated in planner
Options
Run now · 20 minpreferred
- • 360 L at 18 L/min
- • 0.50 kWh at 1.5 kW (hypothetical)
- • Gradual sensor response (+~2 pts)
Trade-off: Low water cost; needs supervisor approval
Wait until 05:30
- • 0 L now
- • ≈ −5 pts further decline (simulated)
- • Cooler, lower evaporation later
Trade-off: Higher crop stress risk under assumed rule
Inspect first
- • Valve + probe check
- • No water until verified
- • Best if data is stale or inconsistent
Trade-off: Delays relief ~1–2 h
Raw readings (advanced)
| Source | Metric | Value | Quality | Timestamp (HST) |
|---|---|---|---|---|
| SENSOR-C1 | EV-C-MOIST | 14% (rule threshold 20%) | measured | 08:38 |
| FIELD-C | EV-C-TREND | −6.4 pts over 24h, still falling | estimated | 08:38 |
| WX-01 | EV-WX | 0 mm last 24h · RH 63% · 25.1°C | synthetic-model | 08:38 |
| TANK-01 | EV-TANK | 63% of 18,000 L | measured | 08:37 |
| PUMP-01 | EV-PUMP | Idle · 2.4 bar · no fault | measured | 08:37 |
| VALVE-C | EV-LAST-RUN | 2 days ago · 9 min (short run) | measured | 08:20 |
| VALVE-C | EV-VALVE | Closed · last confirmed 4 min ago | measured | 08:36 |
| SENSOR-C1 | EV-C-EC | 164 μS/cm (consistent with low water) | measured | 08:38 |
| SENSOR-C1 | EV-C-TEMP | 28.8°C (warmest zone) | measured | 08:38 |