CN114343671A - Cable joint partial discharge signal detection method based on rapid dynamic multiple trap method - Google Patents
Cable joint partial discharge signal detection method based on rapid dynamic multiple trap method Download PDFInfo
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- CN114343671A CN114343671A CN202210029502.1A CN202210029502A CN114343671A CN 114343671 A CN114343671 A CN 114343671A CN 202210029502 A CN202210029502 A CN 202210029502A CN 114343671 A CN114343671 A CN 114343671A
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- electroencephalogram
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- 238000001514 detection method Methods 0.000 title claims abstract description 77
- 238000000034 method Methods 0.000 title claims abstract description 36
- 210000004556 brain Anatomy 0.000 claims description 17
- 238000001914 filtration Methods 0.000 claims description 8
- 230000003321 amplification Effects 0.000 claims description 7
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 7
- 238000004891 communication Methods 0.000 claims description 3
- 239000013307 optical fiber Substances 0.000 claims description 3
- 210000004761 scalp Anatomy 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 210000004027 cell Anatomy 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000005013 brain tissue Anatomy 0.000 description 1
- 210000003710 cerebral cortex Anatomy 0.000 description 1
- 238000003759 clinical diagnosis Methods 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 210000003792 cranial nerve Anatomy 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000000537 electroencephalography Methods 0.000 description 1
- 210000005036 nerve Anatomy 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
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Abstract
The embodiment of the invention discloses a cable joint partial discharge signal detection method based on a rapid dynamic multiple notch method, which comprises a first electroencephalogram signal detection device, a first signal acquisition device and a second signal acquisition device, wherein the first electroencephalogram signal detection device is used for detecting electroencephalograms of a first number of electroencephalogram signal paths; and the electroencephalogram signal collecting device is used for collecting the electroencephalogram signals of the first number of electroencephalogram signal channels so as to obtain an electroencephalogram signal detection result. If the cable joint partial discharge signal detection method based on the fast dynamic multi-notch method further comprises a second electroencephalogram signal detection device for detecting the electroencephalograms of a second number of electroencephalogram signal paths, the electroencephalogram signal collection device is further used for collecting the electroencephalograms of the first number of electroencephalogram signal paths and the second number of electroencephalogram signal paths to obtain the electroencephalogram signal detection result.
Description
Technical Field
The embodiment of the invention relates to the technical field of electroencephalogram, in particular to a cable joint partial discharge signal detection method based on a fast dynamic multiple-notch method.
Background
Human tissue cells always produce very weak bioelectrical activity spontaneously and continuously. Electroencephalography is the overall effect of electrical activity of a large number of cranial nerve cells in a highly coherent state on the cerebral cortex. If the brain electrical signals are collected by the electrodes arranged on the scalp, amplified by the brain electrical detection equipment and recorded on the special paper, the patterns and curves with certain waveforms, amplitudes, frequencies and phases, namely the electroencephalogram, can be obtained. When the brain tissue is pathologically or functionally changed, the electroencephalogram signal is correspondingly changed, thereby providing basis for brain research, physiological nerve research, clinical diagnosis and rehabilitation treatment.
Therefore, a cable joint partial discharge signal detection method based on a fast dynamic multiple trap method is provided.
Disclosure of Invention
The invention mainly solves the technical problems in the prior art and provides a cable joint partial discharge signal detection method based on a rapid dynamic multiple trap method.
In order to achieve the purpose, the invention adopts the following technical scheme that the cable joint partial discharge signal detection method is based on a rapid dynamic multi-notch method, and the first electroencephalogram signal detection device is used for detecting electroencephalograms of a first number of electroencephalogram signal paths; the second electroencephalogram signal detection device is used for detecting electroencephalogram signals of a second number of electroencephalogram signal paths; and the electroencephalogram signal collecting device is used for collecting the electroencephalogram signals of the first number of electroencephalogram signal paths and the electroencephalogram signals of the second number of electroencephalogram signal paths so as to obtain an electroencephalogram signal detection result.
Preferably, the first number is equal to the second number.
Preferably, wherein said first number and said second number are equal to 16.
Preferably, the first electroencephalogram signal detection device and the second electroencephalogram signal detection device are both connected with the electroencephalogram signal collection device through serial optical fiber communication interfaces.
Preferably, the first electroencephalogram signal detection device and the second electroencephalogram signal detection device each include: the brain electrode is used for collecting the electrical signals of the brain; the filtering unit is used for filtering interference signals in the electric signals to obtain electroencephalogram signals; the amplification unit is used for amplifying the electroencephalogram signals; and the detection unit is used for detecting the electroencephalogram signals amplified by the amplification unit.
Preferably, the first electroencephalogram signal detection device and the second electroencephalogram signal detection device each further include: the controller is used for controlling the filtering time constant of the filtering unit.
Advantageous effects
The invention provides a cable joint partial discharge signal detection method based on a rapid dynamic multiple trap method. The method has the following beneficial effects:
(1) the embodiment of the invention collects electroencephalograms detected by a first electroencephalogram signal detection device under the condition that a cable joint partial discharge signal detection method based on a rapid dynamic multiple notch method only comprises the first electroencephalogram signal detection device, and collects electroencephalograms detected by the first electroencephalogram signal detection device and a second electroencephalogram signal detection device under the condition that the cable joint partial discharge signal detection method based on the rapid dynamic multiple notch method also comprises the second electroencephalogram signal detection device, so that the cable joint partial discharge signal detection method based on the rapid dynamic multiple notch method can modularly and freely increase and decrease electroencephalogram signal paths of the cable joint partial discharge signal detection method based on different purposes.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover.
FIG. 1 is a block diagram of a method for detecting a partial discharge signal of a cable joint based on a fast dynamic multiple notching method according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a cable joint partial discharge signal detection method based on a fast dynamic multiple notch method according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of an electroencephalogram signal analog amplification apparatus according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of brain electrical contact impedance detection according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example (b): a cable joint partial discharge signal detection method based on a fast dynamic multi-notch method is shown in figures 1-4, and shown in figure 1, and comprises a first electroencephalogram signal detection device 11, a second electroencephalogram signal detection device 13 and an electroencephalogram signal collection device 15. The first electroencephalogram signal detection device 11 is used for detecting electroencephalogram signals of a first number of electroencephalogram signal paths; the second electroencephalogram signal detection device 13 is used for detecting electroencephalogram signals of a second number of electroencephalogram signal paths; the electroencephalogram signal collecting device 15 is connected to the first electroencephalogram signal detecting device 11 and the second electroencephalogram signal detecting device 13 and is used for collecting electroencephalograms of a first number of electroencephalogram signal paths detected by the first electroencephalogram signal detecting device and electroencephalograms of a second number of electroencephalogram signal paths detected by the second electroencephalogram signal detecting device so as to obtain the electroencephalogram signal detection nodes.
In the related art, the number of electroencephalogram signal paths of the cable joint partial discharge signal detection method based on the fast dynamic multi-notch method is fixed, and the corresponding number of electroencephalogram signal paths cannot be selected according to different purposes. In the embodiment of the invention, the electroencephalogram signals detected by the first electroencephalogram signal detection device are collected under the condition that the cable joint partial discharge signal detection method based on the rapid dynamic multi-notch method only comprises the first electroencephalogram signal detection device, and the electroencephalogram signals detected by the first electroencephalogram signal detection device and the second electroencephalogram signal detection device are collected under the condition that the cable joint partial discharge signal detection method based on the rapid dynamic multi-notch method also comprises the second electroencephalogram signal detection device, so that the electroencephalogram signal paths of the cable joint partial discharge signal detection method based on the rapid dynamic multi-notch method can be modularly and freely increased according to different purposes.
According to an embodiment of the invention, in order to realize that the first brain electrical signal detection device and the second brain electrical signal detection device can be replaced and/or expanded arbitrarily according to different purposes, the first number of the embodiments of the invention can be equal to the second number. Furthermore, the number of the partial discharge signals of the cable joint based on the rapid dynamic multi-notch method can be equal to 16, so that the partial discharge signals of the cable joint based on the rapid dynamic multi-notch method can be increased and decreased freely in a modularized mode by taking a 16 electroencephalogram signal path as a unit according to different purposes, and the requirements of the partial discharge signals of the cable joint based on the rapid dynamic multi-notch method for different purposes are fully met. It should be noted that the 16 brain electrical signal paths are only an example, and in practical applications, the first number may be equal to 32, 64, 128, 256 or 512, or even 100 or 300 according to different applications, which should be considered as the protection scope of the embodiment of the present invention.
Fig. 2 is a schematic diagram of a cable joint partial discharge signal detection method based on a fast dynamic multi-notch method according to an embodiment of the present invention, and as shown in fig. 2, an electroencephalogram signal analog amplification device 21 and an electroencephalogram signal data acquisition processing device 23 are connected together to form a single electroencephalogram signal acquisition system (corresponding to the first electroencephalogram signal detection device 11 or the second electroencephalogram signal detection device 13) with 16 channels, and are connected with a multi-channel extensible data collection device 25 (corresponding to the electroencephalogram signal collection device 15) in a modular manner by serial optical fiber communication. In this way, the required acquisition channels can be expanded in units of 16 channels as required.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A cable joint partial discharge signal detection method based on a rapid dynamic multiple notch method comprises the following steps: the first electroencephalogram signal detection device is used for detecting electroencephalograms of a first number of electroencephalogram signal paths; the second electroencephalogram signal detection device is used for detecting electroencephalogram signals of a second number of electroencephalogram signal paths; and the electroencephalogram signal collecting device is used for collecting the electroencephalogram signals of the first number of electroencephalogram signal paths and the electroencephalogram signals of the second number of electroencephalogram signal paths so as to obtain an electroencephalogram signal detection result.
2. The method of claim 1, wherein the first number is equal to the second number.
3. The method of claim 2, wherein the first number and the second number are equal to 16.
4. The method for detecting partial discharge signals of a cable joint based on the fast dynamic multi-notch method as claimed in any one of claims 1 to 3, wherein the first EEG signal detection device and the second EEG signal detection device are both connected with the EEG signal collection device through a serial optical fiber communication interface.
5. The cable joint partial discharge signal detection method based on the fast dynamic multi-notch method as claimed in any one of claims 1 to 3, wherein the first electroencephalogram signal detection device and the second electroencephalogram signal detection device each comprise: the brain electrode is used for collecting the electrical signals of the brain; the filtering unit is used for filtering interference signals in the electric signals to obtain electroencephalogram signals; the amplification unit is used for amplifying the electroencephalogram signals; and the detection unit is used for detecting the electroencephalogram signals amplified by the amplification unit.
6. The cable joint partial discharge signal detection method based on the fast dynamic multi-notch method as claimed in claim 5, wherein the first electroencephalogram signal detection device and the second electroencephalogram signal detection device each further comprise: the controller is used for controlling the filtering time constant of the filtering unit.
7. The method as claimed in claim 6, wherein the controller is further configured to control the amplification factor of the amplifying unit.
8. The cable joint partial discharge signal detection method based on the fast dynamic multi-notch method as claimed in claim 6, wherein the first electroencephalogram signal detection device and the second electroencephalogram signal detection device each further comprise: the electroencephalogram contact impedance detection unit is used for detecting electroencephalogram contact impedance between the electroencephalogram electrode and the scalp; the controller is also used for controlling an alternating current signal to pass through the brain electrode.
9. The cable joint partial discharge signal detection method based on the fast dynamic multi-notch method as claimed in claim 8, wherein the electroencephalogram contact impedance detection unit comprises: a lead selector for selecting one of the plurality of brain electrodes; the controller is also for controlling the selection operation of the lead selector.
10. A cable joint partial discharge signal detection method based on a rapid dynamic multiple notch method comprises the following steps: detecting brain electrical signals of a first number of brain electrical signal paths; detecting brain electrical signals of a second number of brain electrical signal paths; and collecting the electroencephalogram signals of the first number of electroencephalogram signal paths and the electroencephalogram signals of the second number of electroencephalogram signal paths to obtain the electroencephalogram signal detection.
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| CN202210029502.1A CN114343671A (en) | 2022-01-12 | 2022-01-12 | Cable joint partial discharge signal detection method based on rapid dynamic multiple trap method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117289100A (en) * | 2023-11-27 | 2023-12-26 | 湖南云淼电气科技有限公司 | Cable joint partial discharge signal detection method based on dynamic multiple notch method |
| CN117289100B (en) * | 2023-11-27 | 2024-05-14 | 湖南云淼电气科技有限公司 | Cable joint partial discharge signal detection method based on dynamic multiple notch method |
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- 2022-01-12 CN CN202210029502.1A patent/CN114343671A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117289100A (en) * | 2023-11-27 | 2023-12-26 | 湖南云淼电气科技有限公司 | Cable joint partial discharge signal detection method based on dynamic multiple notch method |
| CN117289100B (en) * | 2023-11-27 | 2024-05-14 | 湖南云淼电气科技有限公司 | Cable joint partial discharge signal detection method based on dynamic multiple notch method |
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