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An Improved Detection Method of Abnormal Waveform

A technology of abnormal waveform and detection method, applied in the field of electrical variable testing

Active Publication Date: 2016-09-07
RIGOL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The oscilloscope disclosed in this patent can record waveforms for a long time and play back the recorded waveforms, but this patent document does not reveal how to detect and display abnormal waveforms in the recorded waveforms

Method used

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  • An Improved Detection Method of Abnormal Waveform
  • An Improved Detection Method of Abnormal Waveform
  • An Improved Detection Method of Abnormal Waveform

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Embodiment Construction

[0207] Preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0208] refer to Figure 6 , is a structural block diagram of the digital oscilloscope listed in this embodiment, the digital oscilloscope includes a storage unit 6011 for sequentially storing multi-frame measurement waveform data; an input unit 6012 for generating input control information; according to the input control information, obtain abnormal waveform data, and display the abnormal waveform data in the waveform display unit 6013 in a waveform display mode.

[0209] refer to figure 1 , the digital oscilloscope listed in this embodiment performs a detection step with a first abnormal waveform, including the following steps:

[0210] Step 1011: Receive a set of control information including measurement control information and a corresponding threshold;

[0211] Step 1012: Acquire a standard value and a set of measurement values ​​from ...

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Abstract

The invention provides an improved method for detecting an abnormal waveform. The method is used for a digital oscilloscope and comprises the steps of receiving a group of control information containing measurement control information and a threshold matched with the measurement control information; obtaining a standard value and a group of measurement values from multi-frame recorded measurement waveform data according to the measurement control information, and according to the standard value and the group of measurement values, obtaining a group of difference values corresponding to the group of measurement values; and displaying the measurement waveform data which correspond to difference values exceeding the threshold as abnormal waveform data. By the aid of the improved method for detecting the abnormal waveform, detection of the abnormal waveform data can be conducted on the recorded measurement waveform data, the abnormal waveform data can be detected quickly and accurately through comparison of parameters of standard waveform data and parameters of the measurement waveform data, and differences between the measurement waveform data and the standard waveform data can be obtained, so that the abnormal waveform data can be analyzed conveniently.

Description

technical field [0001] The invention relates to the field of electric variable testing, in particular to an improved abnormal waveform detection method for a digital oscilloscope. Background technique [0002] A digital oscilloscope is a commonly used measuring device. Different from an analog oscilloscope, a digital oscilloscope collects the measured signal through an analog-to-digital converter, converts the measured analog signal into digital information, and thus captures a series of samples of the measured signal waveform. value. Common digital oscilloscopes are divided into digital storage oscilloscopes, digital phosphor oscilloscopes and sampling oscilloscopes. One of the biggest advantages of a digital oscilloscope is that it can store the waveform of the signal under test, and can do detailed observation and measurement on the stored waveform. [0003] Digital oscilloscopes collect a large amount of waveform data in a very short period of time. Users usually pay g...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R13/02
Inventor 王志彦王悦王铁军李维森
Owner RIGOL