Expert control systems and methods for level measurement

摘要

In at least one illustrative embodiment, a guided wave radar (GWR) level transmitter may comprise a waveguide probe to be positioned in a tank containing media, a measurement circuit, and a compute device. The measurement circuit may transmit a series of pulses along the waveguide probe and measure a series of reflected waveforms, where each of the series of reflected waveforms resulting from transmission of one of the series of pulses along the waveguide probe. The compute device may implement an expert control system to determine a level of the media in the tank, where the expert control system comprises (i) a knowledge base incorporating prior knowledge and (ii) an inference engine to apply logical rules from the knowledge base to evaluate information contained in the series of reflected waveforms to determine the level of media in the tank. The prior knowledge may comprise a system model of the GWR level transmitter, behaviors associated with typical level measurement applications, and/or system parameters supplied by a user of the GWR level transmitter.