ESTIMATING THE MEASUREMENT ACCURACY OF DIFFERENT SENSORS FOR THE SAME MEASURAND

摘要

The invention relates to a method for estimating the measurement accuracy of different sensors (41, 42, 43) for the same measurand. In the method, measured values (m1, ..., mn) of the same measurand, which were captured by different sensors (41, 42, 43), are received. A consensus matrix (CM) is determined by applying a z-test having a predetermined significance value (p) on the basis of the captured measured values (m1, ..., mn) and an assumed statistical standard distribution (n1, ..., nn) of the measured values. The statistical standard distributions (n1, ..., nn) of the measured values (mi), which have the lowest consensus, are rescaled by the smallest scaling value (scmin), at which at least one of said measured values (mi) has an increased consensus. The last two steps are repeated until a desired consensus level is reached. The invention also relates to a measurement method for determining a measured value (m) of a measurand on the basis of measured values (m1, ..., mn) from a plurality of different sensors (41, 42, 43). In addition, the invention relates to an estimating device (30). Moreover, the invention relates to a measurement device (40). The invention also relates to a rail vehicle.