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

A technology of Doppler flowmeter and data processing system, applied in the field of signal processing, can solve the problems of slow response, high power consumption of flowmeter, poor stability of flow rate value, etc., and achieve the effect of low power consumption

Active Publication Date: 2020-02-07
BEIJING TENGINE INNOVATION INSTR
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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, ...

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

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Embodiment Construction

[0047] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0048] figure 1 A flow chart of a Doppler flow meter data processing method provided by an embodiment of the present invention, such as figure 1 As shown, the method includes:

[0049] S1. Obtain the frequency spectrum data of the water area measured by the Doppler current meter;

[0050] Specifically, in this step, after the receiving transducer of the Doppler current meter receives the ultrasonic signal reflected by the impurities in the water, the frequency spectrum for the water velocity is obtained through the Fast Fourier Transform FFT, and is cached in the cache array FFT []middle.

[0051] S2. Judging the type of the flow field in the waters according to the spectrogram features of the spectrum data of th...

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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...

Claims

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Application Information

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IPC IPC(8): G01P5/24
CPCG01P5/241
Inventor 樊华苏宇刚吴小飞
Owner BEIJING TENGINE INNOVATION INSTR
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