CN109682463A - Audible noise measuring method for transformer substation - Google Patents
Audible noise measuring method for transformer substation Download PDFInfo
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- CN109682463A CN109682463A CN201910114042.0A CN201910114042A CN109682463A CN 109682463 A CN109682463 A CN 109682463A CN 201910114042 A CN201910114042 A CN 201910114042A CN 109682463 A CN109682463 A CN 109682463A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H17/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves, not provided for in the preceding groups
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Abstract
The application relates to a transformer substation audible noise measurement method, which comprises S100, and at least three noise measurement probes are arranged in a measurement area. And S200, all the noise measuring probes acquire noise information in the measuring area and obtain a measuring result. S300, analyzing the measurement result, obtaining a change rule of the environmental noise from the measurement result, and removing invalid data in the measurement result according to the change rule to obtain valid data of the audible noise of the transformer substation without the interference of the environmental noise. The transformer substation audible noise measuring method can collect audible noise data of a measuring area and a measuring point, further analyzes and compares the audible noise data, removes invalid data and obtains effective data of transformer substation audible noise. The transformer substation audible noise measuring method can effectively remove invalid data of transformer substation audible noise, and therefore the problem that the transformer substation audible noise test result is inaccurate in the traditional scheme is solved.
Description
Technical field
This application involves electromagnetic field measurements technical fields, more particularly to a kind of substation's audible noise measuring method.
Background technique
Audible noise is the necessary index in measurement of electromagnetic environment.For the audible noise test around substation, often
It selects under quiet environment, carries out measurement work, but prolonged audible noise is monitored, due to logical by neighbouring road vehicle
Row, night chirp or the influence of voice, cause the noise of measurement data more, it is difficult to which analysis obtains audible noise for a long time
Interior accurate changing rule.
For this kind of audible noise data clean research, at present mainly use two methods, first, discrimination difference sound source
Frequency spectrum characteristic, numerical value filters out chirp, typical case's noise such as voice.But the method that numerical value filters out noise is miscellaneous in the presence of being artificially fixedly installed
Sound spectrum lacks the ability for combining actual conditions to recognize interference characteristic automatically, and may filter out needs data to be tested.Second,
Filter network or blimp are installed to noise measuring equipment, physics eliminates noise interference, but physics eliminates the side of noise interference
Method is made an uproar more suitable for wind waits the interference of white noises class.
Traditional scheme can not effectively filter out noise when audible noise is tested in electromagnetic environment, cause test result inaccurate
Really, the accurate changing rule of audible noise in a long time in electromagnetic environment can not be obtained.
Summary of the invention
Based on this, it is necessary to for the problem of substation's audible noise test result inaccuracy in traditional scheme, provide one
Kind substation's audible noise measuring method.
A kind of substation's audible noise measuring method, comprising:
S100 arranges at least three noise testings probe in measured zone；
S200, all the noise testing probe acquires the noise information in the measured zone, and obtains measurement result；
S300 analyzes the measurement result, and the changing rule of ambient noise is obtained from the measurement result, also,
The invalid data in the measurement result is removed according to the changing rule, obtains power transformation under no ambient noise interference
It stands the valid data of audible noise.
Substation's audible noise measuring method provided by the present application, including S100 are made an uproar in measured zone arrangement at least three
Sound measurement probe；S200, all the noise testing probe acquires the noise information in the measured zone, and obtains measurement knot
Fruit；S300 analyzes the measurement result, the changing rule of ambient noise is obtained from the measurement result, also, according to described
Changing rule removes the invalid data in the measurement result, obtains under no ambient noise interference, and substation's audible noise has
Imitate data.Substation's audible noise measuring method provided by the present application can acquire the audible noise of measured zone and test point
Data, and then analyse and compare to the audible noise data, invalid data is removed, the effective of substation's audible noise is obtained
Data.Substation's audible noise measuring method provided by the present application can effectively remove the invalid data of substation's audible noise,
To solve the problems, such as substation's audible noise test result inaccuracy in traditional scheme.
In one of them embodiment, the S100 includes:
S110 judges measured zone with the presence or absence of road；
S120, if so, will all be arranged along road parallel interval the noise testing probe, and the adjacent noise testing
30-50 meters of probe interval；
S130 if it is not, will all arrange along substation's enclosure wall parallel interval noise testings probe, and adjacent described makes an uproar
30-50 meters of sound measurement probe interval.
In one of them embodiment, the S300 includes:
S310 extracts the sound spectrum component obtained along the noise testing probe that road parallel interval is arranged, or,
Extract the sound spectrum component obtained along the noise testing probe that substation's enclosure wall parallel interval is arranged；
S320 extracts the sound spectrum component increased in short-term, and according to the sound spectrum component increased in short-term
Obtain corresponding data, obtain interference data, by the noise testing probe detection in short-term increase spectrum component at the time of remember
To interfere the moment；
S330 judges the interference moment of the different noise testing probes with the presence or absence of difference；
S340, if so, the interference data are denoted as the first invalid data.
In one of them embodiment, the S300 further include:
S350 confirms a noise testing probe of measurement point, obtains middle part measuring probe, and extract in described
Measuring probe measurement data collected in portion's obtains measurement point data；
S360 extracts continuous two measurement data in the measurement point data, obtains the first measurement data and the second measurement
Data；
S370 judges whether the numerical difference of first measurement data and second measurement data is more than preset difference value.
In one of them embodiment, after the S370, the method also includes:
S380, if so, obtaining the respective frequencies of first measurement data and second measurement data；
S381 judges whether the respective frequencies are typical frequencies；
S382, if so, first measurement data and second measurement data are denoted as the second invalid data.
In one of them embodiment, after the S370, the method also includes:
S371, if it is not, judging whether first measurement data and second measurement data are equal；
S372 is obtained if it is not, extracting first measurement data and the corresponding frequency of second measurement data with reference to frequency
Rate.
In one of them embodiment, after the S372, the method also includes:
S373, confirmation are located at the noise testing probe of middle part measuring probe two sides, obtain at least two
The noise testing probe；
S374 extracts the measurement result of each at least two noise testing probe respectively, obtains at least two groups
Reference measurements；
S375, extract two groups described in measurement data corresponding with the reference frequency in reference measurements, obtain first
Group reference data and second group of reference data.
In one of them embodiment, after the S375, the method also includes:
S376 extracts four data in first group of reference data, obtains the first reference data, the second reference number
According to third reference data and the 4th reference data；
S377 extracts four data in second group of reference data, obtains the 5th reference data, the 6th reference number
According to the 7th reference data and the 8th reference data.
In one of them embodiment, after the S377, the method also includes:
S40, first group of reference data of analysing and comparing and second group of reference data.
In one of them embodiment, the S40 includes:
S41, judge the numerical difference of second reference data and the third reference data whether more than 1 decibel, and,
Judge the numerical difference of the 6th reference data and the 7th reference data whether more than 1 decibel；
S42, if so, judge the numerical difference of first reference data and the 4th reference data whether more than 1 decibel,
And
Judge the numerical difference of the 5th reference data and the 8th reference data whether more than 1 decibel；
S43, if so, first group of reference data and second group of reference data are denoted as the first invalid data.
In one of them embodiment, the method also includes:
S50, extracting respective frequencies in first invalid data and second invalid data is 50 hertz, 100 hertz
Or 150 hertz of data, obtain valid data.
In one of them embodiment, the S300 further include:
S390 removes the valid data in first invalid data and second invalid data.
In one of them embodiment, after the S390, the method also includes:
S391 obtains remaining data；
S392, the two days remaining datas in comparison front and back；
S393 judges whether there are data existing for continuous three days wholes of same period in the remaining data；
S394, if so, being normal data by the data markers.
In one of them embodiment, after the S394, the method also includes:
S395 removes the normal data in first invalid data and second invalid data, and it is invalid to obtain
Data.
In one of them embodiment, after the S395, the method also includes:
S396 removes the invalid data from the measurement result.
In one of them embodiment, the method also includes:
S400, according to the changing rule of effective data analysis substation audible noise.
To sum up, substation's audible noise measuring method provided by the present application can effectively remove the noise testing and visit
The measurement result of head, to obtain the valid data of substation's audible noise.Substation's audible noise provided by the present application
Measurement method can arrange the noise testing probe according to the actual situation, and then keep measurement result more accurate.In addition to this,
Substation's audible noise measuring method provided by the present application can be analyzed by spectrum analysis, noise decibel value and record
The various analysis such as the analysis of time and angle confirm the invalid data in measurement result, keep monitoring personnel more acurrate
The valid data of substation's audible noise are known, thus the operation of changing rule and substation to substation's audible noise
Situation is more accurately judged.
Detailed description of the invention
Fig. 1 is the flow diagram for substation's audible noise measuring method that one embodiment of the application provides.
Fig. 2 is the noise testing Probe arrangement schematic diagram that one embodiment of the application provides.
Fig. 3 is the flow diagram for substation's audible noise measuring method that another embodiment of the application provides.
Fig. 4 is the flow diagram for substation's audible noise measuring method that another embodiment of the application provides.
Fig. 5 is the flow diagram for substation's audible noise measuring method that another embodiment of the application provides.
Fig. 6 is the flow diagram for substation's audible noise measuring method that another embodiment of the application provides.
Fig. 7 is the flow diagram for substation's audible noise measuring method that another embodiment of the application provides.
Fig. 8 is the flow diagram for substation's audible noise measuring method that another embodiment of the application provides.
Fig. 9 is the flow diagram for substation's audible noise measuring method that another embodiment of the application provides.
Specific embodiment
Traditional scheme can not effectively filter out noise when audible noise is tested in electromagnetic environment, cause test result inaccurate
Really, the accurate changing rule of audible noise in a long time in electromagnetic environment can not be obtained.Therefore, the application provides a kind of power transformation
It stands audible noise measuring method, can solve the problem of substation's audible noise test result inaccuracy in traditional scheme.
The purpose of the application is to provide a kind of substation's audible noise measuring method for adjacent to highway or farmland, to disappear
Except the interference such as vehicle and chirp are target, data cleaning is carried out by multi-point sampler combination spectrum analysis, it is audible to retain substation
Noise data, to realize the purpose for testing audible noise for a long time.It is understood that the substation provided by the present application can
Listening noise measuring method also can be applied to the substation of other environment, and the purpose of the application does not limit the application.
In order to which the objects, technical solutions and advantages of the application are more clearly understood, by the following examples, and combine attached
Figure, is further elaborated substation's audible noise measuring method of the application.It should be appreciated that tool described herein
Body embodiment only to explain the application, is not used to limit the application.
Substation's audible noise measuring method provided by the embodiments of the present application, the audible noise measuring suitable for substation.
It is appreciated that substation's audible noise measuring method provided by the embodiments of the present application, also can be applied to other audible noises
Measurement.Following embodiment is illustrated substation's audible noise measuring method by taking substation's audible noise measuring method as an example.
In the present embodiment, long-time test is carried out to the audible noise of substation, noise testing probe surveys audible noise
Amount result is recorded in the form of A sound level test result.It should be noted that the noise testing probe needs the test of audible noise
Otherwise the time interval more than 10 seconds.The data of every stage noise measuring probe record are denoted as respectively: A1i, A2i and A3i, i are indicated
The data of different time record, while recording the time ti of test.
Wherein A1i, A2i, A3i are respectively the audible noise A sound level frequency spectrum tested at the i moment and obtained, such as:
A1i=[A1iF1, AliF2, AliF3, AliF4, AliF5, AliF6, AliF7, AliF8].
Here frequency component can be by user setting, if but needing comprising corresponding and vehicle noise and noise of chirping
Dry typical frequencies, this frequency can also select have vehicle or night according to this five numerical value settings in tested substation
Short-Term Monitoring when evening chirp, selects the frequency point increased when vehicle passes through or chirps as typical noise frequency.
Referring to FIG. 1, the application provides a kind of substation's audible noise measuring method, comprising:
S100 arranges at least three noise testings probe in measured zone.
Monitoring personnel can arrange the noise testing probe according to actual needs around substation or inside substation.
Specifically, can arrange at least three noise testing probes in the measured zone, when vehicle passes through, monitoring personnel can
With according at least three noise testing probe measurements to noise data judge whether it is vehicle noise.For example, working as vehicle
When popping one's head in by least three noise testings, each noise testing probe can receive the noise of vehicle process
Information.But each noise testing is popped one's head in when receiving the noise information that vehicle passes through, and there are the gaps of receiving time, and
The gap of decibels.Therefore the data that monitoring personnel can be received by analyzing each noise testing probe, Yi Jijie
The time of receipts judges the noise information passed through in the measurement result with the presence or absence of vehicle.The noise testing probe can divide
Cloth is arranged in the measured zone, can also otherwise arrange according to actual needs, specifically can be according to actual needs
Selection, the application is without limitation.The type of noise testing probe can select according to actual needs, if can to noise into
Row measurement, the application is without limitation.
S200, all the noise testing probe acquires the noise information in the measured zone, and obtains measurement result.
The noise information includes substation's noise and ambient noise.The ambient noise refers to the sound that automobile passes through
Sound, voice, chirp sound and other noises unrelated with substation's noise.During substation operation, the noise testing is visited
Head can acquire all noise informations in the measured zone, and generate frequency spectrum letter after the noise information is carried out analog-to-digital conversion
Breath and numeric results.The i.e. described measurement result includes spectrum information and number as a result, the numeric results are the decibels of noise.
The measurement result can store pops one's head in the noise testing, and monitoring personnel can know survey by extracting the measurement result
Measure the noise information in region.
S300 analyzes the measurement result, and the changing rule of ambient noise, also, root are obtained from the measurement result
The invalid data in the measurement result is removed according to the changing rule, is obtained under no ambient noise interference, substation is audible to make an uproar
The valid data of sound.
The measurement result is the corresponding data of all noise informations in the measured zone, and the invalid data is
The corresponding data of ambient noise.Monitoring personnel can obtain the changing rule of ambient noise by analyzing the measurement result.Example
Such as, chirp is generally concentrated at night, and after monitoring personnel analyzes the measurement result, discovery night noise decibel increases suddenly,
And the time range increased suddenly in several days is probably consistent, then may determine that as noise of chirping.When vehicle passes through, described in difference
There are the time differences to time of vehicle noise frequency spectrum for noise testing probe detection, then can pass through the different noise testings of analysis
The measurement result of probe judges whether it is vehicle process.Monitoring personnel can also remove the measurement according to the changing rule and tie
The invalid data in fruit, obtains under no ambient noise interference, the valid data of substation's audible noise.
Monitoring personnel can also carry out the comparison analysis of data by other means, judge that ambient noise is corresponding described
Invalid data, and the invalid data is removed from the measurement result, obtain valid data.The invalid data includes being not required to
The invalid data that can determine whether to learn is compared for a long time, also includes needing to judge the invalid data learnt after comparing for a long time.It is described
The mode of data removal can be removal or non real-time removal in real time.The real-time removal is real-time monitoring the invalid number
According to rear, to the invalid data progress short time rapid removing.The non real-time removal obtains institute after long-time compares
Invalid data is stated, the invalid data is removed.It can specifically select according to actual needs, the application is without limitation.
Substation's audible noise measuring method provided in this embodiment, including S100 are arranged at least in measured zone
Three noise testing probes；S200, all the noise testing probe acquires the noise information in the measured zone, and obtains
Measurement result；S300 analyzes the measurement result, and the changing rule of ambient noise, also, root are obtained from the measurement result
The invalid data in the measurement result is removed according to the changing rule, is obtained under no ambient noise interference, substation is audible to make an uproar
The valid data of sound.Substation's audible noise measuring method provided in this embodiment can acquire measured zone and test point
Audible noise data, and then analyse and compare to the audible noise data remove invalid data, obtain that substation is audible to make an uproar
The valid data of sound.The invalid data includes judging determining invalid data in short-term and judging determining invalid number for a long time
According to.Substation's audible noise measuring method provided in this embodiment can effectively remove the invalid data of substation's audible noise,
To solve the problems, such as substation's audible noise test result inaccuracy in traditional scheme.
Fig. 2 and Fig. 3 are please referred to, in one embodiment of the application, the S100 includes:
S110 judges measured zone with the presence or absence of road；
S120, if so, will all be arranged along road parallel interval the noise testing probe, and the adjacent noise testing
30-50 meters of probe interval；
S130 if it is not, will all arrange along substation's enclosure wall parallel interval noise testings probe, and adjacent described makes an uproar
30-50 meters of sound measurement probe interval.
When measured zone is there are when road, vehicle is generally had or passerby passes through, at this time can generation environment noise, and ring
Border noise can have an impact the acquisition of substation's noise.At this point, will all the noise testing pop one's head in along road parallel interval
Arrangement, and adjacent 30-50 meters of noise testing probe interval.Therefore, different noise testings probe can be in difference
Position sensing is to vehicle noise, and the decibels of vehicle noise have differences, and in addition to this, different noise testing probe detections arrive
The testing time ti of vehicle noise frequency has differences, therefore can analyze out vehicle noise.It should be noted that except testing
Point is placed outside noise testing probe, need to also place multiple noise testing probes by different location near test point.I.e. in addition to being used for
The noise testing probe for testing designated position is outer, is also separated by 30-50m in left and right, and the position parallel with neighbouring highway places two
Platform audible noise test probe.When road is not present in measured zone, will all the noise testing pop one's head in along substation's enclosure wall
Parallel interval arrangement, and adjacent 30-50 meters of noise testing probe interval.At this point, vehicle noise is nearby not present in substation
Information, therefore can be by the noise testing Probe arrangement outside substation's enclosure wall.
Referring to FIG. 4, in one embodiment of the application, the S300 includes:
S310 extracts the sound spectrum component obtained along the noise testing probe that road parallel interval is arranged, or,
Extract the sound spectrum component obtained along the noise testing probe that substation's enclosure wall parallel interval is arranged.
The sound spectrum component is the corresponding sound spectrum component of noise.Monitoring personnel can be from the noise testing
Spectrum component is obtained in probe.The spectrum component is the corresponding frequency noise of noise of the noise testing probe acquisition
Value.
S320 extracts the sound spectrum component increased in short-term, and according to the sound spectrum component increased in short-term
Obtain corresponding data, obtain interference data, by the noise testing probe detection in short-term increase spectrum component at the time of remember
To interfere the moment.
Monitoring personnel is by analyzing the information of noise testing probe acquisition, the corresponding spectrogram of available noise,
The sound spectrum component increased in short-term is found to quick and convenient.The period increased in short-term is usually no more than 30
The phenomenon that second, monitoring personnel can increase sound spectrum component in short-term, is determined as vehicle or other fast moving objects by leading
The test result of cause fluctuates.Further, monitoring personnel can be increased in short-term by terminal device or the extraction of other arithmetic facilities
Sound spectrum component, and corresponding data, the corresponding data are obtained according to the sound spectrum component increased in short-term
Data are as interfered, the interference data include sound decibel number.Meanwhile monitoring personnel also needs to obtain the noise testing and visits
Head detects the record moment for increasing spectrum component in short-term, and the record moment is denoted as the interference moment.
S330 judges the interference moment of the different noise testing probes with the presence or absence of difference；
S340, if so, the interference data are denoted as the first invalid data.
Monitoring personnel can obtain from sound audio spectrogram and interfere the moment described in multiple groups, so can to the interference moment into
Row comparative analysis judges the interference moment of the different noise testing probes with the presence or absence of difference.It should be noted that different institutes
The interference moment corresponding interference data for stating noise testing probe need to be identical.If the interference moment, there are differences, will
The interference data are denoted as the first invalid data.By taking vehicle noise as an example, when vehicle passes through test point and measured zone, no
With noise testing probe detection to the identical sound spectrum component increased in short-term, but the corresponding record of same sound spectrum component
Moment, i.e. interference moment have differences.In conjunction with the vehicle noise period, the record moment of the probe of noise testing described in different location
Have the characteristics that chronological order, judges the sound spectrum component increased in short-term as vehicle noise, corresponding data are interference
Data, the as invalid data in measurement result.
Referring to FIG. 5, in one embodiment of the application, the S300 further include:
S350 confirms a noise testing probe of measurement point, obtains middle part measuring probe, and extract in described
Measuring probe measurement data collected in portion's obtains measurement point data；
S360 extracts continuous two measurement data in the measurement point data, obtains the first measurement data and the second measurement
Data；
S370 judges whether the numerical difference of first measurement data and second measurement data is more than preset difference value.
The middle part measuring probe can be selected by monitoring personnel, and the application is without limitation.Continuous two surveys
Amount data refer to the measurement data of the middle part measuring probe two continuous moment measurements in measurement process.It needs
Bright, in the present embodiment, the numerical difference of first measurement data and second measurement data refers to decibel numerical value
Difference, the decibel numerical value can be obtained from the measurement data.If the decibel numerical value of the first measurement data is denoted as A21,
The decibel numerical value of second measurement data is denoted as A22, when the numerical difference of A21 and A22 is more than 3 decibels, is then remembered A21 and A22
For the first invalid data.In the present embodiment, the preset value is 3 decibels, it is to be understood that the preset value can also be by supervising
Survey personnel reset, and the application is without limitation.
Referring to FIG. 6, in one embodiment of the application, after the S370, the method also includes:
S380, if so, obtaining the respective frequencies of first measurement data and second measurement data；
S381 judges whether the respective frequencies are typical frequencies；
S382, if so, first measurement data and second measurement data are denoted as the second invalid data.
In the present embodiment, the typical frequencies are 400 hertz, 800 hertz, 5000 hertz and 6000 hertz, this frequency
Can be according to this five numerical value settings, it can also Short-Term Monitoring, choosing when tested substation, which selects, has vehicle or night to chirp
The frequency point increased when vehicle passes through or chirps is selected as typical noise frequency.If first measurement data and described second
The respective frequencies of measurement data are typical frequencies, then first measurement data and second measurement data are denoted as the second nothing
Imitate data.
Referring to FIG. 7, in one embodiment of the application, after the S370, the method also includes:
S371, if it is not, judging whether first measurement data and second measurement data are equal；
S372 is obtained if it is not, extracting first measurement data and the corresponding frequency of second measurement data with reference to frequency
Rate.
After the S372, the method also includes:
S373, confirmation are located at the noise testing probe of middle part measuring probe two sides, obtain at least two
The noise testing probe；
S374 extracts the measurement result of each at least two noise testing probe respectively, obtains at least two groups
Reference measurements；
S375, extract two groups described in measurement data corresponding with the reference frequency in reference measurements, obtain first
Group reference data and second group of reference data.
Further, after the S375, the method also includes:
S376 extracts four data in first group of reference data, obtains the first reference data, the second reference number
According to third reference data and the 4th reference data；
S377 extracts four data in second group of reference data, obtains the 5th reference data, the 6th reference number
According to the 7th reference data and the 8th reference data.
In the present embodiment, by first measurement data and the corresponding frequency of second measurement data, i.e., the described reference
Frequency is denoted as F2L.One noise testing collected measurement data of popping one's head in is denoted as A1i, wherein i be data record when
It carves.Measurement data corresponding with the reference frequency F2L is first group of reference data in the A1i.Extract described first
Four data in group reference data, obtain the first reference data, the second reference data, third reference data and the 4th reference number
According to.First reference data, second reference data, the third reference data and the 4th reference data are followed successively by
A10, A11, A12 and A14 measurement data corresponding with the reference frequency.
The measurement data that another described noise testing is popped one's head in is denoted as A3i, at the time of wherein i is data record.It is described
Measurement data corresponding with the reference frequency F2L is second group of reference data in A3i.Extract second group of reference number
Four data in, obtain the 5th reference data, the 6th reference data, the 7th reference data and the 8th reference data.It is described
5th reference data, the 6th reference data, the 7th reference data and the 8th reference data be followed successively by A30,
A31, A32 and A34 measurement data corresponding with the reference frequency.
Referring to FIG. 8, in one embodiment of the application, after the S377, the method also includes:
S40, first group of reference data of analysing and comparing and second group of reference data.
Specifically, the S40 includes:
S41, judge the numerical difference of second reference data and the third reference data whether more than 1 decibel, and,
Judge the numerical difference of the 6th reference data and the 7th reference data whether more than 1 decibel；
S42, if so, judge the numerical difference of first reference data and the 4th reference data whether more than 1 decibel,
And judge the numerical difference of the 5th reference data and the 8th reference data whether more than 1 decibel；
S43, if so, first group of reference data and second group of reference data are denoted as the first invalid data.
The numerical difference refers to the difference of decibels.Logarithm value difference is set as 1 decibel, but the numerical value in the present embodiment
Difference can also be set by monitoring personnel, and the application is without limitation.
In one embodiment of the application, the method also includes:
S50, extracting respective frequencies in first invalid data and second invalid data is 50 hertz, 100 hertz
Or 150 hertz of data, obtain valid data.
Occur at random if there is whole day, but the noise information that frequency is 50 hertz, 100 hertz or 150 hertz, then
It is judged to uttering long and high-pitched sounds caused by transformer magnetostriction, data are valid data, do not need to remove from the measurement result.
Referring to FIG. 9, in one embodiment of the application, the method also includes:
S390 removes the valid data in first invalid data and second invalid data.
Further, after the S390, the method also includes:
S391 obtains remaining data；
S392, the two days remaining datas in comparison front and back；
S393 judges whether there are data existing for continuous three days wholes of same period in the remaining data；
S394, if so, being normal data by the data markers.
Further, after the S394, the method also includes:
S395 removes the normal data in first invalid data and second invalid data.
The remaining data is first invalid data and second invalid data after the removal valid data.
The two days remaining datas in comparison front and back, if there are existing for continuous three days wholes of same period in the remaining data
Data then may determine that as normal data.To avoid accidentally cleaning normal data, therefore first invalid number need to be removed
According to the normal data in second invalid data.If the data are determined as invalid number there is no periodically
According to.
Referring to FIG. 9, in one embodiment of the application, after the S395, the method also includes:
S396 cleans first invalid data and second invalid data.
In the present embodiment, the valid data and institute have been removed in first invalid data and second invalid data
State normal data.Substation's audible noise can be obtained after cleaning to first invalid data and second invalid data
Valid data.The cleaning can be understood as removing invalid data from measurement result.
In one embodiment of the application, substation's audible noise measuring method further include:
S400, according to the changing rule of effective data analysis substation audible noise.
Monitoring personnel can analyze the audible noise changing rule of substation according to the valid data, so as to
Obtain the changing rule of substation's audible noise.The changing rule of the audible noise can reflect the operation conditions of substation.
In addition to this, the application also provides a kind of computer non-volatile readable storage medium, is stored thereon with computer
Program, which is characterized in that the computer program realizes substation's audible noise measuring as described above when being executed by processor
The step of method.
To sum up, substation's audible noise measuring method provided by the present application can effectively remove the noise testing and visit
The measurement result of head, to obtain the valid data of substation's audible noise.Substation's audible noise provided by the present application
Measurement method can arrange the noise testing probe according to the actual situation, and then keep measurement result more accurate.In addition to this,
Substation's audible noise measuring method provided by the present application can be analyzed by spectrum analysis, noise decibel value and record
The various analysis such as the analysis of time and angle confirm the invalid data in measurement result, keep monitoring personnel more acurrate
The valid data of substation's audible noise are known, thus the operation of changing rule and substation to substation's audible noise
Situation carries out more accurate judgement.
Claims (16)
1. a kind of substation's audible noise measuring method characterized by comprising
S100 arranges at least three noise testings probe in measured zone；
S200, all the noise testing probe acquires the noise information in the measured zone, and obtains measurement result；
S300 analyzes the measurement result, and the changing rule of ambient noise is obtained from the measurement result, also,
The invalid data in the measurement result is removed according to the changing rule, obtains under no ambient noise interference that substation can
Listen the valid data of noise.
2. the method as described in claim 1, which is characterized in that the S100 includes:
S110 judges measured zone with the presence or absence of road；
S120, if so, will all be arranged along road parallel interval the noise testing probe, and the adjacent noise testing probe
30-50 meters of interval；
S130, if it is not, will all be arranged along substation's enclosure wall parallel interval the noise testing probe, and the adjacent noise is surveyed
30-50 meters of amount probe interval.
3. method according to claim 2, which is characterized in that the S300 includes:
S310 extracts the sound spectrum component obtained along the noise testing probe that road parallel interval is arranged,
Or,
Extract the sound spectrum component obtained along the noise testing probe that substation's enclosure wall parallel interval is arranged；
S320 extracts the sound spectrum component increased in short-term, and is obtained according to the sound spectrum component increased in short-term
Corresponding data obtain interference data, and the noise testing probe detection is dry to being denoted as at the time of increasing spectrum component in short-term
Disturb the moment；
S330 judges the interference moment of the different noise testing probes with the presence or absence of difference；
S340, if so, the interference data are denoted as the first invalid data.
4. method as claimed in claim 3, which is characterized in that the S300 further include:
S350 confirms a noise testing probe of measurement point, obtains middle part measuring probe, and extract the middle part and survey
The amount probe measurement data collected obtains measurement point data；
S360 extracts continuous two measurement data in the measurement point data, obtains the first measurement data and the second measurement data；
S370 judges whether the numerical difference of first measurement data and second measurement data is more than preset difference value.
5. method as claimed in claim 4, which is characterized in that after the S370, the method also includes:
S380, if so, obtaining the respective frequencies of first measurement data and second measurement data；
S381 judges whether the respective frequencies are typical frequencies；
S382, if so, first measurement data and second measurement data are denoted as the second invalid data.
6. method as claimed in claim 4, which is characterized in that after the S370, the method also includes:
S371, if it is not, judging whether first measurement data and second measurement data are equal；
S372 obtains reference frequency if it is not, extracting first measurement data and the corresponding frequency of second measurement data.
7. method as claimed in claim 6, which is characterized in that after the S372, the method also includes:
S373, confirmation are located at the noise testing probe of middle part measuring probe two sides, obtain described at least two
Noise testing probe；
S374 extracts the measurement result of each at least two noise testing probe respectively, obtains at least two groups reference
Measurement result；
S375, extract two groups described in measurement data corresponding with the reference frequency in reference measurements, obtain first group of ginseng
Examine data and second group of reference data.
8. the method for claim 7, which is characterized in that after the S375, the method also includes:
S376 extracts four data in first group of reference data, obtains the first reference data, the second reference data, the
Three reference datas and the 4th reference data；
S377 extracts four data in second group of reference data, obtains the 5th reference data, the 6th reference data, the
Seven reference datas and the 8th reference data.
9. method according to claim 8, which is characterized in that after the S377, the method also includes:
S40, first group of reference data of analysing and comparing and second group of reference data.
10. method as claimed in claim 9, which is characterized in that the S40 includes:
S41, judge the numerical difference of second reference data and the third reference data whether more than 1 decibel, and,
Judge the numerical difference of the 6th reference data and the 7th reference data whether more than 1 decibel；
S42, if so, judge the numerical difference of first reference data and the 4th reference data whether more than 1 decibel, with
And
Judge the numerical difference of the 5th reference data and the 8th reference data whether more than 1 decibel；
S43, if so, first group of reference data and second group of reference data are denoted as the first invalid data.
11. the method as described in claim 3-10, which is characterized in that the method also includes:
S50, extracting respective frequencies in first invalid data and second invalid data is 50 hertz, 100 hertz or 150
The data of hertz, obtain valid data.
12. method as claimed in claim 11, which is characterized in that the S300 further include:
S390 removes the valid data in first invalid data and second invalid data.
13. method as claimed in claim 12, which is characterized in that after the S390, the method also includes:
S391 obtains remaining data；
S392, the two days remaining datas in comparison front and back；
S393 judges whether there are data existing for continuous three days wholes of same period in the remaining data；
S394, if so, being normal data by the data markers.
14. method as claimed in claim 13, which is characterized in that after the S394, the method also includes:
S395 removes the normal data in first invalid data and second invalid data, obtains invalid data.
15. method as claimed in claim 14, which is characterized in that after the S395, the method also includes:
S396 removes the invalid data from the measurement result.
16. the method as described in claim 1, which is characterized in that the method also includes:
S400, according to the changing rule of effective data analysis substation audible noise.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110926784A (en) * | 2019-12-10 | 2020-03-27 | 上海欧秒电力监测设备有限公司 | GIS circuit breaker fault on-line monitoring device based on sound |
| CN113494959A (en) * | 2020-04-08 | 2021-10-12 | 苏州文泽可智能科技有限公司 | Method for judging noise of plant |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103512652A (en) * | 2013-09-12 | 2014-01-15 | 国家电网公司 | Boundary background noise testing method suitable for transformer substation during operation |
| CN203432679U (en) * | 2013-09-12 | 2014-02-12 | 国家电网公司 | Measuring device for boundary background noise during operation of transformer station |
| CN104280718A (en) * | 2013-07-01 | 2015-01-14 | 华北电力大学 | Transformer station abnormal sound monitoring and positioning method |
| CN105158578A (en) * | 2015-08-25 | 2015-12-16 | 北京工业大学 | Bridge method-based device for measuring dielectric constant of organism |
| CN106370403A (en) * | 2016-08-22 | 2017-02-01 | 南京信息工程大学 | Instant frequency estimation method based on edge detection |
-
2019
- 2019-02-14 CN CN201910114042.0A patent/CN109682463B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104280718A (en) * | 2013-07-01 | 2015-01-14 | 华北电力大学 | Transformer station abnormal sound monitoring and positioning method |
| CN103512652A (en) * | 2013-09-12 | 2014-01-15 | 国家电网公司 | Boundary background noise testing method suitable for transformer substation during operation |
| CN203432679U (en) * | 2013-09-12 | 2014-02-12 | 国家电网公司 | Measuring device for boundary background noise during operation of transformer station |
| CN105158578A (en) * | 2015-08-25 | 2015-12-16 | 北京工业大学 | Bridge method-based device for measuring dielectric constant of organism |
| CN106370403A (en) * | 2016-08-22 | 2017-02-01 | 南京信息工程大学 | Instant frequency estimation method based on edge detection |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110926784A (en) * | 2019-12-10 | 2020-03-27 | 上海欧秒电力监测设备有限公司 | GIS circuit breaker fault on-line monitoring device based on sound |
| CN110926784B (en) * | 2019-12-10 | 2021-07-27 | 上海欧秒电力监测设备有限公司 | GIS circuit breaker fault on-line monitoring device based on sound |
| CN113494959A (en) * | 2020-04-08 | 2021-10-12 | 苏州文泽可智能科技有限公司 | Method for judging noise of plant |
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