IMPROVED LIQUID LEVEL SENSING AND DIAGNOSTIC DETERMINATION

• Main Author: LARSEN JOHN F
• Format: Patent
• Language: Chinese; English
• Published: 13.11.2018
• Subjects: MEASURING; MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUIDLEVEL; METERING BY VOLUME; PHYSICS; TESTING

A method for determining a liquid level of a reservoir includes sensing a plurality of liquid level points during a plurality of defined computation intervals, and determining filtered block points from the sensed liquid level points occurring during each of the computation intervals. The method fits a regression model to the determined filtered block points, including determining a slope and a standard error of regression, and determines an actual liquid level change from the slope of the regression model. The method may also include making a diagnostic determination if the method determinesthat a confidence ratio is sufficiently high. 种用于确定贮存器的液位的方法，包括：在多个定义的计算间隔期间感测多个液位点，并且根据在每个计算间隔期间发生的感测的液位点来确定滤波块点。该方法将回归模型拟合到所确定的滤波块点，包括确定回归的斜率和标准误差，并且根据回归模型的斜率来确定实际液位变化。该方法还可包括：如果该方法确定置信率足够高则做出诊断确定。