Mining optical fiber temperature measurement method and device

The invention relates to the technical field of temperature measurement, in particular to a mining optical fiber temperature measurement method and device, and the method comprises the steps: obtaining an optical fiber temperature data sequence of each sampling point; performing wavelet decompositio...

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Hauptverfasser: WANG HUADONG, ZHAO JIN, XUN YARU, ZHU KAI, ZHANG NANA
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The invention relates to the technical field of temperature measurement, in particular to a mining optical fiber temperature measurement method and device, and the method comprises the steps: obtaining an optical fiber temperature data sequence of each sampling point; performing wavelet decomposition on the optical fiber temperature data sequence for multiple times to obtain optical fiber temperature detail components, and constructing an optical fiber temperature sensing coefficient according to the data distribution condition of the optical fiber temperature detail components and the probability distribution of the autocorrelation in combination with the temperature data; performing feature analysis on the optical fiber temperature sensing coefficient in the preset time window, and constructing an optical fiber temperature deviation index; and obtaining the neighborhood radius and the minimum point number of the DBSCAN algorithm, and clustering the optical fiber temperature data sequence to obtain final tem