Digital oscilloscope and data detection method thereof
A digital oscilloscope and wave detection technology, applied in the direction of digital variable display, digital variable/waveform display, instruments, etc., can solve the problems of abnormal signal playback and limited memory space for users, and achieve the effect of saving storage space and convenient playback
Active Publication Date: 2020-12-01
SHENZHEN CITY SIGLENT TECH
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Problems solved by technology
[0006] The present invention aims to provide a digital oscilloscope and its data detection method, which solves the problem that the user cannot play back the abnormal signal due to the limited memory space of the digital oscilloscope when data is collected for a long time
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[0027] The present invention will be further described in detail below through specific embodiments in conjunction with the accompanying drawings. Wherein, similar elements in different implementations adopt associated similar element numbers. In the following implementation manners, many details are described for better understanding of the present application. However, those skilled in the art can readily recognize that some of the features can be omitted in different situations, or can be replaced by other elements, materials, and methods. In some cases, some operations related to the application are not shown or described in the description, this is to avoid the core part of the application being overwhelmed by too many descriptions, and for those skilled in the art, it is necessary to describe these operations in detail Relevant operations are not necessary, and they can fully understand the relevant operations according to the description in the specification and genera...
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The invention discloses a digital oscilloscope and a data detection method thereof. The digital oscilloscope comprises a data acquisition module, a memory, a detection module and a waveform drawing module. When the detection module detects that a peak value of a currently stored data frame in the memory does not exceed the detection template, the situation indicates that the currently stored dataframe belongs to normal waveform data, and a user does not need to check the currently stored data frame in playback later, thus the currently stored data frame is deleted from the memory to save thestorage space in the memory; and when the detection module detects that the peak value of the data frame currently stored in the memory exceeds the detection template, the situation indicates that thecurrently stored data frame is possibly abnormal waveform data, the user is likely to check the currently stored data frame in playback later, the data frame is reserved in the memory and the detection template is updated so as to screen out the real abnormal waveform data, so that a digital oscilloscope can always store the possible abnormal waveform data frame in the memory under the conditionof long-term data collection, and the user can play back the abnormal waveform data frame conveniently.
Description
technical field [0001] The invention relates to the technical field of oscilloscopes, in particular to a digital oscilloscope and a data detection method thereof. Background technique [0002] In addition to the most basic functions of waveform acquisition and waveform display, most digital oscilloscopes also have the function of waveform recording, which allows users to play back the waveform data of all historical frames collected by the oscilloscope under the current configuration. [0003] The realization of the waveform recording function is to use the data memory of the digital oscilloscope. When the current configuration of the digital oscilloscope has been determined, mainly the time base gear and sampling rate, the data required to display a frame of waveform image on the display interface can be calculated. The amount, and then the memory is divided into uniform storage address segments, and each storage address is used to store the data required for a frame of w...
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IPC IPC(8): G01R13/02
CPCG01R13/0209
Inventor 吴乾科郑文明李振军
Owner SHENZHEN CITY SIGLENT TECH