Water level measurement error analysis and control method and system

• Main Authors: WU XIAOHUI, HAN ZHENQIANG, XIONG JUNLIU, YANG FAN, HU XIAOBIN, LUO PENG, YANG HUA, CHEN RONG, PENG XUHUI, ZOU JINJIE
• Format: Patent
• Language: Chinese; English
• Published: 27.06.2023
• Subjects: CALCULATING; COMPUTING; COUNTING; MEASURING; MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUIDLEVEL; METERING BY VOLUME; PHYSICS; TESTING

The invention discloses a water level measurement error analysis and control method and system which are applied to the technical field of image processing, and the method comprises the steps: obtaining a steam drum water level image; through coarse positioning of the first water level image, an area containing a water level gauge and an area for error identification are determined; the water level of the steam-containing area and the water level of the saturated water area are positioned through fine positioning; establishing a gray level co-occurrence matrix; analyzing a local mode and an arrangement rule of the first water level image in the gray level co-occurrence matrix; mapping the features of the first water level image to a high-dimensional feature space through a nonlinear function, and constructing a classification super-plane to classify the first water level image; acquiring a timestamp of the steam drum water level, outputting an analog signal, and converting the analog signal into corresponding