CN203490359U - Portable transformer station noise imaging positioning detecting device - Google Patents
Portable transformer station noise imaging positioning detecting device Download PDFInfo
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- CN203490359U CN203490359U CN201320377368.0U CN201320377368U CN203490359U CN 203490359 U CN203490359 U CN 203490359U CN 201320377368 U CN201320377368 U CN 201320377368U CN 203490359 U CN203490359 U CN 203490359U
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Abstract
The utility model discloses a portable transformer station noise imaging positioning detecting device which comprises an imaging display mechanism and a noise detecting mechanism that are connected through a coaxial cable. The noise detecting mechanism comprises noise sensors and a signal preprocessing circuit, wherein the noise sensors are arranged on a secondary curved surface structure. The imaging display mechanism comprises the following components: a display device, a processor, and a data memory which is connected with the processor. The processor is provided with a sound strength mapping processing module for driving and displaying a sound intensity mapping graph for quickly determining a noise source. According to the portable transformer station noise imaging positioning detecting device, according to the position of to-be-detected equipment of the transformer station, a cubic data model of the secondary curved surface is established. A three-dimensional coordinate system is established based on the model. Preprocessing and display processing are performed on a related noise signal. Noise imaging is performed through pseudo image information. Furthermore quick failure positioning is realized through color ring belt analysis. The portable transformer station noise imaging positioning detecting device provided by the utility model has the following advantages: effectively improving operation efficiency in maintenance of transformer station, realizing simple operation and high practicability, and obtaining high popularization value.
Description
Technical field
The utility model belongs to acoustic positioning equipment technical field, particularly a kind of Portable transformer substation noise imaging locating and detecting device.
Background technology
Along with Management of Electrical Enterprise becomes more meticulous, humanization of service, data standardization, the periodic test of the running status of electric equipment and odd test are required more and more higher, more and more thinner, traditional listening argues that position has been difficult to solve up hill and dale a site technology problem; Research discovery, any electrical equipment is in operation, and owing to being subject to the effect of exchange current, all various sound and vibration can occur, and these sound and vibration are that operational outfit is peculiar, mean a kind of feature of equipment running status.For example, mostly transformer station is to be in an environment that has multiple noise, is wherein power frequency acoustical signal mostly, when equipment breaks down, will inevitably supervene noise signal, and these noises and power frequency acoustical signal are mingled in the environment sound.But, transformer station is again a place that environment is more special simultaneously, under substation operation state, be not allow people near equipment, belong to hazardous location, duration of work forbids that personnel approach, therefore, equipment failure cannot be predicted, cannot locate after equipment failure, very difficult to the detection of its accident defect.And between regular turn(a)round, phenomenon of the failure when technician cannot reappear high pressure again, the breakthrough that is never resolved of this problem, can only manually infer by rule of thumb, large area is exchange device more, but for the location of abnormal sound, only with ear, is difficult to accomplish.So how to carry out auditory localization under noisy environment, just seem particularly important, and also have using value in other industry.At present, the intelligent degree of the lookup method in the extraordinary noise source of transformer station is very low, cannot search fast and accurately noise source, fix a breakdown, and with this, reduces the massive losses that equipment failure brings transformer station.Machine science and technical journal in June, 2008, the 27 the 6th phase of volume " design of the remote vibration signal detection system of ultrasound wave " was recorded: in mechanical equipment state monitoring and fault diagnosis, vibration signal is an important state parameter, article is for piezoelectric type, vibration measurement method and the limitation of instrument in particular surroundings that current vortex sensor etc. are conventional, proposed based on hyperacoustic non-contact detection method, study and designed system detecting device, this pick-up unit is mainly by ultrasound wave generation module, ultrasound wave receiver module and the data acquisition based on L abV IEW go to 3 parts of reason to form, utilize this device to carry out telemeasurement to vibration object.But above-mentioned detection device need to utilize vibration to carrying out signal reception after ultrasonic signal modulation to vibration object transmitting ultrasonic signal again, processes the localization of faults, structure relative complex.CN 101865789 A disclose failure detector and the detection method thereof of the near field acoustic holography sound image pattern-recognition in a kind of industrial detection field, comprise microphone array, scanning support, reference source, clamped floor, exciting source and data acquisition system (DAS).Utilize machinery normal with malfunction under the variation of sound pressure amplitude and distribution, use for reference diagnostic imaging technology in the application of other field, the processing of employing image, feature extraction and mode identification technology are processed near field acoustic holography image.But larger for signals collecting amount, data processing trouble, accuracy rate is lower, for having relatively high expectations of installing, is not easy to promote the use of simultaneously.
Utility model content
The purpose of this utility model is to address the above problem, and the Portable transformer substation noise imaging locating and detecting device of a kind of convenient observation, handling safety is provided.
For achieving the above object, the technical scheme that the utility model adopts is: a kind of Portable transformer substation noise imaging locating and detecting device, comprise by the connected imaging indication mechanism of concentric cable and noise detection mechanism, described noise detection mechanism comprises that arranged in matrix is in the structural noise transducer of quadric surface and signal pre-processing circuit.
Described imaging indication mechanism comprises display, processor and the data-carrier store being connected with described processor; Described processor input end connects the output terminal of noise detection mechanism, and the output terminal of described processor connects described display.
Described processor arranges sound intensity mapping processing module, at described display, the pixel with different colours shows the sound intensity mapping graph passing threshold circuit that described sound intensity mapping processing module generates, and the colour circle band that described same color pixel forms represents identical sound intensity threshold value.
The structural noise transducer quantity of described quadric surface is set to 16 or 32 or 64.
Described signal pre-processing circuit comprises self-adaptation amplifying circuit, low-pass filter circuit, minute frame circuit and windowing circuit, and described minute frame circuit arranges frame and move as 10ms.
Described noise transducer comprises that shell body, mandrel, inner cover, inner cap, circuit board, piezoelectric ceramics sheet and base form, described circuit board is equipped with the impedance transformation amplifying circuit that contains the piezoelectric ceramic chip that two natural frequency ω n are not identical, described inner cover is fixed on described shell body, described base is fixedly connected with described inner cover by mandrel, described piezoelectric ceramic piece is arranged on mandrel, described inner cap is fixed on inner cover, described circuit board is fixed in described and covers, and described impedance transformation amplifying circuit connects described signal pre-processing circuit outward.
Described quadric surface structure cambered surface front end circumferentially arranges the tubaeform leading note plate protracting.
Described quadric surface structure below arranges bracing frame, and support frame as described above bottom arranges universal wheel, and lift component is set on support frame as described above.
Described processor connects warning device, and described warning device comprises sound and flash alarm.
The utility model comprises by the connected imaging indication mechanism of concentric cable and noise detection mechanism, and described noise detection mechanism comprises that arranged in matrix is in the structural noise transducer of quadric surface and signal pre-processing circuit; Described imaging indication mechanism comprises display, processor and the data-carrier store being connected with described processor; Described processor input end connects the output terminal of noise detection mechanism, and the output terminal of described processor connects described display; By the structural noise transducer of described quadric surface, gather the spherical wave signal of described vibration noise source signal, utilize its spatial structure to position, binding signal pre-process circuit, determine noise source information and carry out post-processed and demonstration, facilitate fault diagnosis and early warning analysis, improve transformer substation system safe operation;
Described processor arranges sound intensity mapping processing module, at described display, the pixel with different colours shows described sound intensity mapping graph passing threshold circuit, the colour circle band that described same color pixel forms represents identical sound intensity threshold value, show that result is clear, be user-friendly for observation and analysis, for rapid failure diagnosis, there is significant meaning.
The structural noise transducer quantity of described quadric surface is set to 16 or 32 or 64, and the data of being not only convenient to gathering are carried out scale-of-two Treatment Analysis, and arranges standard; Described signal pre-processing circuit comprises self-adaptation amplifying circuit, low-pass filter circuit, minute frame circuit and windowing circuit, by signal is amplified, then low-pass filtering filtering high frequency and multiple frequence signal, reduce the interference of high frequency and frequency-doubled signal, alleviate data analysis difficulty, and with minute frame circuit and windowing circuit, image data is carried out to quantitative analysis and demonstration, be convenient to form the basic data information of sound intensity mapping graph.
Described noise transducer comprises shell body, mandrel, inner cover, inner cap, circuit board, piezoelectric ceramics sheet and base form, described circuit board is equipped with the impedance transformation amplifying circuit that contains the piezoelectric ceramic chip that two natural frequency ω n are not identical, described inner cover is fixed on described shell body, described base is fixedly connected with described inner cover by mandrel, described piezoelectric ceramic piece is arranged on mandrel, described inner cap is fixed on inner cover, described circuit board is fixed in described and covers, described impedance transformation amplifying circuit connects described signal pre-processing circuit outward, frequency response range than the pickup head of piezoelectric ceramic piece class is wider, reference frequency output than single piezoelectric patches probe can increase to 2 times of left and right, it receives that energy is large, mechanical activation amplitude is strong, so piezoelectric ceramic piece produces stronger electric signal, improved the high sensitivity to signals collecting, it can improve 15~25 decibels to the interference of sound in air simultaneously.
Described quadric surface structure cambered surface front end circumferentially arranges the tubaeform leading note plate protracting, and not only can improve the accuracy of collecting signal, also can reduce the stack of other noise signals in non-sensing range and disturb, accuracy and the reliability of impact judgement;
Described quadric surface structure below arranges bracing frame, and support frame as described above bottom arranges universal wheel, adjusts the distance with detected object in the time of can be easy to use, and transportation, easy to carry; Lift component is set on support frame as described above, can tentatively adjusts according to the height at detected position, improve detection accuracy; Described processor connects warning device, described warning device comprises sound and flash alarm, after processing signal, processor is analyzed in conjunction with the data message in data-carrier store, preliminary early warning failure message, carries out accurately locating good basic condition being provided according to the information of sound intensity mapping graph to follow-up.
The utility model novelty noise signal is obtained and processed separates, the features such as that system front end noise signal acquisition component has is portable, accurate positioning, pre-service are rapid, process, display unit has feature richness, it is detailed to show, early warning functional advantage timely.The utility model Portable transformer substation noise imaging locating and detecting device has fundamentally solved the accurately early warning of substation equipment fault, the difficult problems such as abort situation can not accurately judge, can provide technical guarantee for grasping in time substation equipment ruuning situation, for the accurate judgement of equipment failure point provides theoretical foundation.This detecting system also has following characteristics:
1) acquisition and processing separately, has guaranteed the accuracy of noise source location;
2) time of arrival, acquisition module adopted devices at full hardware circuit to realize, and had guaranteed the precision of data information transfer processing reliability and location;
3) clock timing are carried out clock alignment with center-side, guarantee the accuracy of clock;
4) can store information, the action status information of being convenient to post analysis and print record is as noise source position coordinates, noise source time of occurrence, noise source rack information of living in etc.;
5) making of equipment set device is small and exquisite, exquisite, and on-the-spot installation wiring is simpler, convenient.
The utility model is according to transformer station's Devices to test position, set up quadric cube model metadata, based on this model, set up three-dimensional system of coordinate, at at least 16 noise transducers of each fixed position setting of this model, and correlated noise signal is carried out to pre-service and Graphics Processing, and utilize pseudo-image information to carry out imaging, obtain simulation panorama noise signal and realize noise imaging, and utilize colour circle band to make to analyze easy, can realize quick localization of fault.Transformer station's static object that checking draws detection is mutually identical with noise respective objects, and noise imaging information fiduciary level is high.The utility model is located by being beneficial to ultrasonic listening, and described imaging indication mechanism and noise detection mechanism are set to the structure of one, effectively having solved people's ear cannot consciousness and the transformer station abnormal vibrations of location, guarantee that equipment operates under normal state, before operation troubles appears in equipment, find problem and solve, prevent trouble before it happens, effectively improved the work efficiency that station is safeguarded, the simple and practical efficiency of the utility model is high, has good application value.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described further:
Fig. 1 is the structural representation of Portable transformer substation noise imaging locating and detecting device in the utility model;
Fig. 2 is that the signal of Portable transformer substation noise imaging locating and detecting device in the utility model is processed block diagram.
Embodiment
Specific embodiment one
As depicted in figs. 1 and 2, a kind of Portable transformer substation noise imaging locating and detecting device, comprise by the connected imaging indication mechanism of concentric cable and noise detection mechanism, described noise detection mechanism comprises noise transducer 12 and the signal pre-processing circuit of arranged in matrix in quadric surface structure 1, and described noise transducer 2 quantity are set to 32.
Described imaging indication mechanism comprises display 2, processor 3 and the data-carrier store 4 being connected with described processor 3; Described processor 3 input ends connect the output terminal of noise detection mechanism, and the output terminal of described processor 3 connects described display 2.
Described processor 3 arranges sound intensity mapping processing module 5, at described display 2, the pixel with different colours shows the sound intensity mapping graph passing threshold circuit that described sound intensity mapping processing module 5 generates, and the colour circle band 6 that described same color pixel forms represents identical sound intensity threshold value.
Described signal pre-processing circuit comprises self-adaptation amplifying circuit, low-pass filter circuit, minute frame circuit and windowing circuit, and described minute frame circuit arranges frame and move as 10ms.
Described noise transducer 12 comprises that shell body, mandrel, inner cover, inner cap, circuit board, piezoelectric ceramics sheet and base form, described circuit board is equipped with the impedance transformation amplifying circuit that contains the piezoelectric ceramic chip that two natural frequency ω n are not identical, described inner cover is fixed on described shell body, described base is fixedly connected with described inner cover by mandrel, described piezoelectric ceramic piece is arranged on mandrel, described inner cap is fixed on inner cover, described circuit board is fixed in described and covers, and described impedance transformation amplifying circuit connects described signal pre-processing circuit outward.
The cambered surface front end of described quadric surface structure 1 circumferentially arranges the tubaeform leading note plate 7 protracting.
Described quadric surface structure 1 below arranges bracing frame 8, and support frame as described above 8 bottoms arrange universal wheel 9, and lift component 10 is set on support frame as described above 8.
Described processor 3 connects warning device 11, and described warning device 11 comprises sound and flash alarm.
Specific embodiment two
Only be with specific embodiment one difference: noise transducer 2 quantity in described quadric surface structure 1 are set to 16 or 64.
In above-described embodiment, the utility model comprises by the connected imaging indication mechanism of concentric cable and noise detection mechanism, and described noise detection mechanism comprises noise transducer 12 and the signal pre-processing circuit of arranged in matrix in quadric surface structure 1; Described imaging indication mechanism comprises display 2, processor 3 and the data-carrier store 4 being connected with described processor 3; Described processor 3 input ends connect the output terminal of noise detection mechanism, and the output terminal of described processor 3 connects described display 2; By the noise transducer 12 in described quadric surface structure 1, gather the spherical wave signal of described vibration noise source signal, utilize its spatial structure to position, binding signal pre-process circuit, determine noise source information and carry out post-processed and demonstration, facilitate fault diagnosis and early warning analysis, improve transformer substation system safe operation.
Described processor 3 arranges sound intensity mapping processing module 5, at described display 2, the pixel with different colours shows described sound intensity mapping graph passing threshold circuit, the colour circle band 6 that described same color pixel forms represents identical sound intensity threshold value, show that result is clear, be user-friendly for observation and analysis, for rapid failure diagnosis, there is significant meaning.
Described signal pre-processing circuit comprises self-adaptation amplifying circuit, low-pass filter circuit, minute frame circuit and windowing circuit, by signal is amplified, then low-pass filtering filtering high frequency and multiple frequence signal, reduce the interference of high frequency and frequency-doubled signal, alleviate data analysis difficulty, and to gathering, be that data are carried out quantitative analysis and demonstration with minute frame circuit and windowing circuit, be convenient to form the basic data information of sound intensity mapping graph.
Described noise transducer 12 comprises shell body, mandrel, inner cover, inner cap, circuit board, piezoelectric ceramics sheet and base form, described circuit board is equipped with the impedance transformation amplifying circuit that contains the piezoelectric ceramic chip that two natural frequency ω n are not identical, described inner cover is fixed on described shell body, described base is fixedly connected with described inner cover by mandrel, described piezoelectric ceramic piece is arranged on mandrel, described inner cap is fixed on inner cover, described circuit board is fixed in described and covers, described impedance transformation amplifying circuit connects described signal pre-processing circuit outward, frequency response range than the pickup head of piezoelectric ceramic piece class is wider, reference frequency output than single piezoelectric patches probe can increase to 2 times of left and right, it receives that energy is large, mechanical activation amplitude is strong, so piezoelectric ceramic piece produces stronger electric signal, improved the high sensitivity to signals collecting, it can improve 15~25 decibels to the interference of sound in air simultaneously.
Described quadric surface structure 1 cambered surface front end circumferentially arranges the tubaeform leading note plate 7 protracting, and not only can improve the accuracy of collecting signal, also can reduce the stack of other noise signals in non-sensing range and disturb, accuracy and the reliability of impact judgement;
Described quadric surface structure 1 below arranges bracing frame 8, and support frame as described above 8 bottoms arrange universal wheel 9, adjusts the distance with detected object in the time of can be easy to use, and transportation, easy to carry; Lift component 10 is set on support frame as described above 8, can tentatively adjusts according to the height at detected position, improve detection accuracy.
Described processor 3 connects warning device 11, described warning device 11 comprises sound and flash alarm, after processing, 3 pairs of signals of processor are analyzed in conjunction with the data message in data-carrier store 4, preliminary early warning failure message, carries out accurately locating good basic condition being provided according to the information of sound intensity mapping graph to follow-up.
The utility model novelty noise signal is obtained and processed separates, the features such as that system front end noise signal acquisition component has is portable, accurate positioning, pre-service are rapid, process, display unit has feature richness, it is detailed to show, early warning functional advantage timely.The utility model Portable transformer substation noise imaging locating and detecting device has fundamentally solved the accurately early warning of substation equipment fault, the difficult problems such as abort situation can not accurately judge, can provide technical guarantee for grasping in time substation equipment ruuning situation, for the accurate judgement of equipment failure point provides theoretical foundation.This detecting system also has following characteristics:
1) acquisition and processing separately, has guaranteed the accuracy of noise source location;
2) time of arrival, acquisition module adopted devices at full hardware circuit to realize, and had guaranteed the precision of data information transfer processing reliability and location;
3) clock timing are carried out clock alignment with center-side, guarantee the accuracy of clock;
4) can store information, the action status information of being convenient to post analysis and print record is as noise source position coordinates, noise source time of occurrence, noise source rack information of living in etc.;
5) making of equipment set device is small and exquisite, exquisite, and on-the-spot installation wiring is simpler, convenient.
The utility model is according to transformer station's Devices to test position, set up quadric cube model metadata, based on this model, set up three-dimensional system of coordinate, at at least 16 noise transducers of each fixed position setting of this model 12, and correlated noise signal is carried out to pre-service and Graphics Processing, and utilize pseudo-image information to carry out imaging, obtain simulation panorama noise signal and realize noise imaging, and utilize colour circle band 6 to make to analyze easy, can realize quick localization of fault.Transformer station's static object that checking draws detection is mutually identical with noise respective objects, and noise imaging information fiduciary level is high.The utility model is located by being beneficial to ultrasonic listening, and described imaging indication mechanism and noise detection mechanism are set to the structure of one, effectively having solved people's ear cannot consciousness and the transformer station abnormal vibrations of location, guarantee that equipment operates under normal state, before operation troubles appears in equipment, find problem and solve, prevent trouble before it happens, effectively improved the work efficiency that station is safeguarded, the simple and practical efficiency of the utility model is high, has good application value.
Claims (7)
1. a Portable transformer substation noise imaging locating and detecting device, it is characterized in that: comprise by the connected noise detection mechanism of concentric cable and imaging indication mechanism, described noise detection mechanism comprises that arranged in matrix is in the structural noise transducer of quadric surface and signal pre-processing circuit; Described imaging indication mechanism comprises display, processor and the data-carrier store being connected with described processor, and described processor input end connects the output terminal of noise detection mechanism, and the output terminal of described processor connects described display.
2. Portable transformer substation noise imaging locating and detecting device as claimed in claim 1, is characterized in that: the structural noise transducer quantity of described quadric surface is set to 16 or 32 or 64.
3. Portable transformer substation noise imaging locating and detecting device as claimed in claim 1, it is characterized in that: described signal pre-processing circuit comprises self-adaptation amplifying circuit, low-pass filter circuit, minute frame circuit and windowing circuit, and described minute frame circuit arranges frame and move as 10ms.
4. Portable transformer substation noise imaging locating and detecting device as claimed in claim 1, it is characterized in that: described noise transducer comprises shell body, mandrel, inner cover, inner cap, circuit board, piezoelectric ceramics sheet and base form, described circuit board is equipped with the impedance transformation amplifying circuit that contains the piezoelectric ceramic chip that two natural frequency ω n are not identical, described inner cover is fixed on described shell body, described base is fixedly connected with described inner cover by mandrel, described piezoelectric ceramic piece is arranged on mandrel, described inner cap is fixed on inner cover, described circuit board is fixed in described and covers, described impedance transformation amplifying circuit connects described signal pre-processing circuit outward.
5. Portable transformer substation noise imaging locating and detecting device as described in as arbitrary in claim 1-4, is characterized in that: described quadric surface structure cambered surface front end circumferentially arranges the tubaeform leading note plate protracting.
6. Portable transformer substation noise imaging locating and detecting device as described in as arbitrary in claim 1-4, is characterized in that: described quadric surface structure below arranges bracing frame, and support frame as described above bottom arranges universal wheel, and lift component is set on support frame as described above.
7. Portable transformer substation noise imaging locating and detecting device as described in as arbitrary in claim 1-4, is characterized in that: described processor connects warning device, and described warning device comprises sound and flash alarm.
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Cited By (11)
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CN103336266A (en) * | 2013-06-28 | 2013-10-02 | 河南省电力公司南阳供电公司 | Portable transformer substation noise imaging positioning detection device |
CN105351756A (en) * | 2015-11-23 | 2016-02-24 | 杨璐馨 | Pipeline leakage recognizing and positioning system and method based on sound wave imaging |
CN108645509A (en) * | 2018-06-27 | 2018-10-12 | 西安输变电工程环境影响控制技术中心有限公司 | A kind of self-propelled low frequency substation noise cloud atlas test device and test method |
CN108716948A (en) * | 2018-06-27 | 2018-10-30 | 西安输变电工程环境影响控制技术中心有限公司 | A kind of substation's noise synthesis cloud atlas test device |
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CN105351756A (en) * | 2015-11-23 | 2016-02-24 | 杨璐馨 | Pipeline leakage recognizing and positioning system and method based on sound wave imaging |
CN108645509A (en) * | 2018-06-27 | 2018-10-12 | 西安输变电工程环境影响控制技术中心有限公司 | A kind of self-propelled low frequency substation noise cloud atlas test device and test method |
CN108716948A (en) * | 2018-06-27 | 2018-10-30 | 西安输变电工程环境影响控制技术中心有限公司 | A kind of substation's noise synthesis cloud atlas test device |
CN108848323A (en) * | 2018-06-27 | 2018-11-20 | 西安输变电工程环境影响控制技术中心有限公司 | A kind of image processing method of substation's noise synthesis cloud atlas |
CN108896165A (en) * | 2018-06-27 | 2018-11-27 | 西安输变电工程环境影响控制技术中心有限公司 | A kind of substation's noise synthesis cloud atlas test method |
CN109029700A (en) * | 2018-06-27 | 2018-12-18 | 西安输变电工程环境影响控制技术中心有限公司 | Shrinkable volume configuration low frequency substation noise cloud atlas test device and test method |
CN109060113A (en) * | 2018-06-27 | 2018-12-21 | 西安输变电工程环境影响控制技术中心有限公司 | Angle measurement adjustable volume configuration substation's noise cloud atlas test device and test method |
CN109060111A (en) * | 2018-06-27 | 2018-12-21 | 西安输变电工程环境影响控制技术中心有限公司 | A kind of multi-channel type substation noise synthesis cloud atlas test device |
CN109060112A (en) * | 2018-06-27 | 2018-12-21 | 西安输变电工程环境影响控制技术中心有限公司 | Contractile volume configuration substation noise cloud atlas test device and its operating method |
CN109916612A (en) * | 2019-03-28 | 2019-06-21 | 国网宁夏电力有限公司电力科学研究院 | GIS mechanical breakdown electrification detection system based on acoustics imaging |
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