SENSOR FUSION USING SELF EVALUATING PROCESS SENSORS

摘要

A measurement processing system is disclosed for fusing measurement data from a set of independent self-validating (SEVA) process sensors (20) monitoring the same real-time measurand in order to generate a combined best estimate for the value, uncertainty and measurement status of the measurand. The system also provides consistency checking between the measurements. The measurement processing system includes a first process sensor (20) and a second process sensor (20). Each of the first and second process sensors (20) receive a measurement signal from a transducer and generate independent process metrics (24). A measurement fusion block (22) is connected to the first and second process sensors (20), the measurement fusion block (22) is operable to receive the independent process metrics and execute a measurement analysis process to analyse the independent process metrics and generate the combined best estimate of the independent process metrics.