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Results & Analysis

Experimental findings, sensor response data, and performance validation of the hybrid monitoring framework.

Summary Statistics

Key Performance Indicators

100%
Tilt Event Detection Rate
<5s
Alert Response Time
3
Risk Levels Classified
6
ThingSpeak Data Fields
24/7
Continuous Monitoring
Test Results

Scenario-by-Scenario Findings

1
Tilt Simulation Results

Observations

  • MPU6050 detected tilt angle changes immediately upon slope rotation
  • Angle readings updated in real time on ThingSpeak Field 1
  • TiltScore incremented correctly with increasing angle
  • SSI crossed WARNING threshold (30) at approximately 10–12° tilt
  • DANGER threshold (60) triggered at approximately 18–20° tilt
  • Risk status correctly updated from SAFE → WARNING → DANGER
Tilt Angle vs Time Graph
2
Water Infiltration Results

Observations

  • Moisture sensor responded progressively to water addition
  • Smooth rising moisture curve observed on ThingSpeak Field 2
  • MoistureScore increased from 5 (dry) to 35 (saturated)
  • Combined SSI (tilt + moisture) reached WARNING at approximately 45% moisture
  • Clear correlation between water volume added and sensor reading
  • Sensor response time to moisture change was under 3 seconds
Soil Moisture Graph
3
Vibration Event Results

Observations

  • SW420 successfully detected all manually triggered vibration events
  • Vibration flag (Field 3) changed from 0 to 1 instantly upon detection
  • VibrationScore of 15 added to SSI immediately
  • Events were accurately timestamped in ThingSpeak database
  • Combined vibration + tilt + moisture SSI reached DANGER (>60) reliably
  • No false positive vibration triggers during normal model operation
Vibration Event Chart
System Performance

SSI Combined Performance

The Slope Stability Index correctly integrated all three sensor inputs into a meaningful composite risk score throughout all test scenarios. The automatic risk classification (SAFE / WARNING / DANGER) operated reliably without manual intervention.

SAFE zone correctly maintained during baseline conditions
WARNING triggered appropriately during moderate stress conditions
DANGER correctly classified under combined high-stress scenarios
Maximum Recorded SSI (Combined Scenario)
SSI = 40 + 35 + 15 = 90 → DANGER
Slope Stability Index Chart ThingSpeak Dashboard
Key Conclusions

What the Results Show

✅

System Validation

The IoT monitoring prototype successfully detected all three categories of slope instability triggers — tilt, moisture, and vibration — in every test scenario performed.

⚡

Real-Time Response

Alert generation time from sensor event to ThingSpeak risk classification update was consistently under 5 seconds — well within the operational safety requirement for slope monitoring systems.

📡

Cloud Integration

Seamless data transmission to ThingSpeak was maintained throughout testing. MATLAB analysis scripts correctly computed trend SSI values and confirmed real-time classification accuracy.