Doppler current meter data processing method, system, medium and computer equipment
A Doppler flow meter and data processing technology, applied in the field of signal processing, can solve the problems of slow response, poor stability of flow value, and high power consumption of the flow meter, and achieve the effect of low power consumption
Active Publication Date: 2021-09-28
BEIJING TENGINE INNOVATION INSTR
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
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
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
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...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The present invention relates to a data processing method, system, medium and computer equipment of a Doppler current meter, wherein the method includes: acquiring the frequency spectrum data of the water area measured by the Doppler current meter; The type of the flow field in the water area; according to the type of the flow field, the corresponding flow velocity signal recognition algorithm is selected to calculate the flow velocity value. The present invention aims at different spectrogram features of spectrum data obtained by different flow fields in different scenarios, effectively identifying the type of flow field in the water area detected by the current meter at this time, and automatically switching between different flow velocity signal recognition algorithms to obtain an accurate Stable flow rate value, no need for multiple measurements, low power consumption.
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
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G01P5/24
CPCG01P5/241
Inventor 樊华苏宇刚吴小飞
Owner BEIJING TENGINE INNOVATION INSTR