Doppler flow rate meter data processing method and system, medium and computer equipment

Abstract

The invention relates to a Doppler flow rate meter data processing method and system, a medium and computer equipment. The method comprises a step of acquiring frequency spectrum data of a water areameasured by a Doppler flow rate meter, a step of judging the type of a flow field in the water area according to spectrogram characteristics of the frequency spectrum data of the water area, and a step of selecting a corresponding flow rate signal identification algorithm to calculate a flow rate value according to the type of the flow field. Aiming at different spectrogram characteristics of frequency spectrum data obtained in different scenes and different flow places, the type of the flow field in the water area detected by the flow rate meter at a moment is effectively recognized, different flow rate signal recognition algorithms are automatically switched, an accurate and stable flow rate value is obtained, the repeated measurement is not needed, and the power consumption is low.

Description

technical field [0001] The invention relates to the field of signal processing, in particular to a data processing method, system, medium and computer equipment of a Doppler flow meter. Background technique [0002] With the development of the economy and society, the concept of energy conservation and environmental protection is deeply rooted in the hearts of the people, and the measurement of hydrological parameters provides strong data support for the industry. The measurement of flow rate and flow rate is an important part of hydrological parameters in the water measurement industry, and plays a pivotal role in flood control early warning, big data analysis, irrigation, billing by volume and other fields. [0003] An acoustic Doppler current meter is a common type of flow meter that has a pair of ultrasonic transducers, one acting as the excitation transducer and the other as the receiving transducer. The excitation transducer first transmits an ultrasonic signal with a...

AI Technical Summary

Problems solved by technology

Since there are many kinds of flow fields in the water area of ​​the current meter, the amplitude greater than the threshold is not unique, and it fluctuates greatly with the change of the water flow. The method of simply counting the frequency value corresponding to the amplitude greater than the threshold is not applicable. In many scenarios, it can only play its role in a single fixed flow field environment. At the same time, the measured flow velocity value has poor stability. It needs multiple measurements to obtain multiple sets of flow velocity values ​​and then do corresponding processing, resulting in high power consumption and slow response of the flow meter. and other disadvantages

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