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Waveform sensing data processing method

A technology of sensing data and waveform data, which is applied to instruments, character and pattern recognition, computer components, etc., can solve the problems of affecting measurement accuracy and large scale changes between components, so as to achieve obvious and real real differences, reduce difficulty, The effect of assisted automatic judgment decision-making

Active Publication Date: 2020-10-30
北京中科德达信息技术有限公司
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Problems solved by technology

The amplitude of the actual data causes large scale changes between components, which will also affect the measurement accuracy

Method used

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Embodiment Construction

[0038] In order to accurately describe the content of the present invention, the present invention explains the following terms and their meanings.

[0039] Data sample: From the data signals released continuously from the device, the sensing data is collected according to the sampling frequency of equal time intervals, which can reflect the characteristics of the researched object; the data sample in the present invention refers to one of the sensing data.

[0040] Sinusoidal function: Sinusoidal function is an important function widely used in practice, which refers to the function y=Asin(ωx+φ)+b (where A, ω, φ are all constants, and A>0, ω>0) , where A is the amplitude, ω is called the circular frequency or angular frequency, φ is called the initial phase or initial phase angle, and b is the offset of the function in the y direction. The sinusoidal function y=Asin(ωx+φ)+b is a periodic function, and its period is 2π / ω.

[0041] Waveform sensing data: For the important comp...

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Abstract

The invention relates to a processing method of waveform sensing data. The processing method of the waveform sensing data comprises the processing steps of parameter calibration of a waveform function, construction of a reference sine type function, phase-based sample alignment, frequency-based sample data correction, sine type coordinate mapping of a sample and the like. Entropy-based informationquantity evaluation is performed on a mapping result of the sample under the sinusoidal coordinate system. According to the waveform sensing data processing method, the information amount of an original waveform sensing data sample can be kept, and the waveform sensing data processing method can be used for algorithms such as clustering / classification based on distance. The method is suitable forthe internet of things environment, interconnection equipment state analysis based on waveform sensing data is carried out, and automatic judgment and decision making are assisted.

Description

technical field [0001] In the fields of equipment manufacturing and power systems, the sensing data of many components are shown as fluctuating shapes in the Cartesian coordinate system. The invention relates to a processing method for waveform sensing data, which belongs to the fields of sensing data processing and industrial Internet. Background technique [0002] In equipment manufacturing and power systems, the time series data collected during the operation detection of important components is represented as a waveform in the Cartesian coordinate system. Although some data does not strictly follow standard waveforms such as sine, according to the principle of waveform decomposition, it can be expressed as the superposition of multiple waveform data within a certain error range. In industrial activities, the operating status of these detection components is often investigated by processing and analyzing relevant waveform sensing data, and conditionally predicting possib...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/62G06K9/00
CPCG06F2218/12G06F18/24133Y02P90/02
Inventor 张常有蔡晓峰肖娇娇石琳薄文吴长茂郭成
Owner 北京中科德达信息技术有限公司
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