Leakage control is being shifted from survey to monitoring. The unusual pipeline can be found by 3-process-step of the installation, the patrol and the analysis.
LNL-1 is an acoustic data logger system designed for detecting and monitoring leakage on water pipelines.Loggers, equipped with high sensitivity sensors are deployed on pipe fittings such as valves, fire hydrants. The loggers record “minimum noise level” at the points on the pipeline. Analyser, the recorded data are downloaded by radio communication by the Analyser. And the Analyser shows 3 levels of leak possibilities at given thresholds. Software, the PC software identifies each logger and visualizes it on the map. The results of Minimum Noise Level are indicated in each area or blocks. The results are displayed as graph. Momentary change of sound is also displayed.