Pipe Leakage Detection Using Moving Pressure Standard Deviation

The patent replaces the mechanical vibration-based detection system with a pressure-based detection system. Instead of relying on vibration propagation through the pipe (which fails for plastic pipes), the system measures pressure changes at multiple points along the pipe and uses these pressure differential data to detect leakage, thereby achieving accurate leakage detection for plastic pipes without relying on vibration propagation.

The patent introduces pressure as an intermediary parameter to detect leakage. Rather than directly detecting vibrations or flow changes, the system uses pressure measurements at multiple points as an indirect indicator of leakage conditions. By analyzing pressure differentials and their temporal variations, the system can infer the presence of leakage without being directly affected by pipe material properties.

The patent performs preliminary actions by pre-calculating moving standard deviations from historical pressure data and establishing reference values before actual leakage detection. The system continuously maintains moving standard deviation calculations from past measurements and compares new measurements against these pre-computed references, enabling rapid leakage detection without performing complex real-time analysis, thus reducing processing complexity while maintaining responsiveness.

The patent employs dynamic moving standard deviation calculations that adapt to changing pressure conditions over time. Instead of using fixed thresholds, the system continuously updates statistical parameters based on recent pressure history, allowing the detection criteria to dynamically adjust to normal operational variations. This dynamic approach enables responsive leakage detection while keeping processing manageable by focusing calculations on recent data windows rather than all historical data.