Monitoring Plant Piping Vibration through Spatial Frequency Distribution

In industrial plants, numerous pipelines experience vibrations due to internal flow, which vary in frequency depending on support conditions and faults. Monitoring pipe vibration is crucial for preventing accidents. Traditional sensors like accelerometers are impractical for simultaneous monitoring of multiple pipelines. This paper proposes a method using CCTV cameras to spatially visualize vibration frequency distributions. This technique processes video signals to display frequency distributions, similar to thermal cameras showing temperature distributions. Verification experiments demonstrated the method effectively identifies vibrating pipelines and their frequencies. The approach is limited by camera frame rates, making it suitable for low-frequency monitoring across multiple pipelines.