CN203405569U - Ultrasonic image positioning detection device for transformer stations - Google Patents
Ultrasonic image positioning detection device for transformer stations Download PDFInfo
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- CN203405569U CN203405569U CN201320377076.7U CN201320377076U CN203405569U CN 203405569 U CN203405569 U CN 203405569U CN 201320377076 U CN201320377076 U CN 201320377076U CN 203405569 U CN203405569 U CN 203405569U
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Abstract
The utility model discloses an ultrasonic image positioning detection device for transformer stations. The ultrasonic image positioning detection device comprises an image display mechanism and an ultrasonic detection mechanism which are connected by a coaxial cable, the ultrasonic detection mechanism comprises ultrasonic sensors which are arranged on the quadric surface in a matrix and a signal pre-treatment circuit; the image display mechanism comprises a display, a processor and a data memory connected with the processor; the processor is provided with a sound intensity map processing module for driving and displaying the sound intensity map to quickly judge the ultrasonic source. The cube data model of the quadric surface is established according the position of the detected device of the transformer station, and a tri-dimensional coordinate system is established based on the established cube data model, and the correlated ultrasonic signal is subjected to pre-treatment and display, and the ultrasonic imaging is performed by fake image information, and the fault position is quickly positioned by the color wheel belt analysis. The work efficiency of maintenance and repair of the transformer station is effectively improved, the ultrasonic image positioning detection device is convenient and practical, and has very good popularization and application value.
Description
Technical field
The utility model relates to ultrasound wave positioning equipment technical field, particularly a kind of transformer station ultrasonic 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, owing to being subject to the effect of exchange current, there is various sound and vibration in capital, comprising hearing noise and ultrasound wave, 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 ultrasonic signal, and these ultrasound waves 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, particularly ultrasonic signal, is only difficult to accomplish with ear.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 of the abnormal ultrasound source of transformer station is very low, cannot search fast and accurately ultrasound 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 transformer station's ultrasonic 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 transformer station ultrasonic imaging locating and detecting device, comprise by the connected imaging indication mechanism of concentric cable and ultrasonic listening mechanism, described ultrasonic listening mechanism comprises that arranged in matrix is in the structural ultrasonic sensor 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 ultrasonic listening 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 ultrasonic sensor 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 ultrasonic sensor comprises the hollow type plastic casing that is arranged at the structural end opening one end sealing of described quadric surface, the matching layer that piezoelectric ceramic piece is set and is connected with piezoelectric ceramic piece lower surface in described hollow type plastic casing, the inner shielding material of filling of described hollow type plastic casing, described matching layer upper surface is provided with to be centered around presses described electroceramics sheet becket around, between described becket and described piezoelectric ceramic piece, form a resonator cavity, the negative pole of described piezoelectric ceramic piece is electrically connected to becket, the positive pole of external connection terminals is electrically connected to the positive pole of piezoelectric ceramic piece, the negative pole of external connection terminals is electrically connected to becket.
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 ultrasonic listening mechanism, and described ultrasonic listening mechanism comprises that arranged in matrix is in the structural ultrasonic sensor 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 ultrasonic listening mechanism, and the output terminal of described processor connects described display; By the structural ultrasonic sensor of described quadric surface, gather the spherical wave signal of described vibration ultrasound source signal, utilize its spatial structure to position, binding signal pre-process circuit, determine ultrasound 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 ultrasonic sensor 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 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 ultrasonic sensor comprises the hollow type plastic casing that is arranged at the structural end opening one end sealing of described quadric surface, the matching layer that piezoelectric ceramic piece is set and is connected with piezoelectric ceramic piece lower surface in described hollow type plastic casing, the inner shielding material of filling of described hollow type plastic casing, described matching layer upper surface is provided with to be centered around presses described electroceramics sheet becket around, between described becket and described piezoelectric ceramic piece, form a resonator cavity, the negative pole of described piezoelectric ceramic piece is electrically connected to becket, the positive pole of external connection terminals is electrically connected to the positive pole of piezoelectric ceramic piece, the negative pole of external connection terminals is electrically connected to becket, adopt described ultrasonic sensor to produce resonance by described resonator cavity, with respect to simple piezoelectric ceramic piece, it receives that energy is large, mechanical activation amplitude is strong, so piezoelectric ceramic piece produces stronger electric signal, has improved the high sensitivity to signals collecting.
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 ultrasonic 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, the distance of adjustment and detected object when can conveniently 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 ultrasonic signal is obtained and processed separates, the features such as that system front end ultrasonic 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 transformer station ultrasonic 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 ultrasound 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 ultrasound source position coordinates, ultrasound source time of occurrence, ultrasound 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 ultrasonic sensors of each fixed position setting of this model, and associated ultrasonic ripple signal is carried out to pre-service and Graphics Processing, and utilize pseudo-image information to carry out imaging, obtain simulation panorama ultrasonic signal and realize ultrasonic 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 ultrasound wave respective objects, and ultrasonic imaging information fiduciary level is high.The utility model is located by being beneficial to ultrasonic listening, and described imaging indication mechanism and ultrasonic listening 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 transformer station's ultrasonic imaging locating and detecting device in the utility model;
Fig. 2 is that the signal of transformer station's ultrasonic 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 transformer station ultrasonic imaging locating and detecting device, comprise by the connected imaging indication mechanism of concentric cable and ultrasonic listening mechanism, described ultrasonic listening mechanism comprises ultrasonic sensor 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 ultrasonic listening 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 ultrasonic sensor 12 comprises the hollow type plastic casing that is arranged at the structural end opening one end sealing of described quadric surface, the matching layer that piezoelectric ceramic piece is set and is connected with piezoelectric ceramic piece lower surface in described hollow type plastic casing, the inner shielding material of filling of described hollow type plastic casing, described matching layer upper surface is provided with to be centered around presses described electroceramics sheet becket around, between described becket and described piezoelectric ceramic piece, form a resonator cavity, the negative pole of described piezoelectric ceramic piece is electrically connected to becket, the positive pole of external connection terminals is electrically connected to the positive pole of piezoelectric ceramic piece, the negative pole of external connection terminals is electrically connected to becket.
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: ultrasonic sensor 2 quantity in described quadric surface structure 1 are set to 16 or 32.
In above-described embodiment, the utility model comprises by the connected imaging indication mechanism of concentric cable and ultrasonic listening mechanism, and described ultrasonic listening mechanism comprises ultrasonic sensor 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 ultrasonic listening mechanism, and the output terminal of described processor 3 connects described display 2; By the ultrasonic sensor 12 in described quadric surface structure 1, gather the spherical wave signal of described vibration ultrasound source signal, utilize its spatial structure to position, binding signal pre-process circuit, determine ultrasound 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 ultrasonic sensor 12 comprises the hollow type plastic casing that is arranged at the end opening one end sealing in described quadric surface structure 1, the matching layer that piezoelectric ceramic piece is set and is connected with piezoelectric ceramic piece lower surface in described hollow type plastic casing, the inner shielding material of filling of described hollow type plastic casing, described matching layer upper surface is provided with to be centered around presses described electroceramics sheet becket around, between described becket and described piezoelectric ceramic piece, form a resonator cavity, the negative pole of described piezoelectric ceramic piece is electrically connected to becket, the positive pole of external connection terminals is electrically connected to the positive pole of piezoelectric ceramic piece, the negative pole of external connection terminals is electrically connected to becket, adopt described ultrasonic sensor 12 to produce resonance by described resonator cavity, with respect to simple piezoelectric ceramic piece, it receives that energy is large, mechanical activation amplitude is strong, so piezoelectric ceramic piece produces stronger electric signal, has improved the high sensitivity to signals collecting,
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 ultrasonic 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, the distance of adjustment and detected object when can conveniently 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 ultrasonic signal is obtained and processed separates, the features such as that system front end ultrasonic 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 transformer station ultrasonic 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 ultrasound 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 ultrasound source position coordinates, ultrasound source time of occurrence, ultrasound 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 ultrasonic sensors of each fixed position setting of this model 12, and associated ultrasonic ripple signal is carried out to pre-service and Graphics Processing, and utilize pseudo-image information to carry out imaging, obtain simulation panorama ultrasonic signal and realize ultrasonic 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 ultrasound wave respective objects, and ultrasonic imaging information fiduciary level is high.The utility model is located by being beneficial to ultrasonic listening, and described imaging indication mechanism and ultrasonic listening 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 (8)
1.Yi Zhong transformer station ultrasonic imaging locating and detecting device, it is characterized in that: comprise by the connected ultrasonic listening mechanism of concentric cable and imaging indication mechanism, described ultrasonic listening mechanism comprises that arranged in matrix is in the structural ultrasonic sensor 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 ultrasonic listening mechanism, and the output terminal of described processor connects described display.
2. transformer station's ultrasonic imaging locating and detecting device as claimed in claim 1, it is characterized in that: described processor arranges sound intensity mapping processing module, sound intensity mapping graph passing threshold circuit pixel with different colours on described display that described sound intensity mapping processing module generates shows, and described same color pixel forms the colour circle band that represents identical sound intensity threshold value.
3. transformer station's ultrasonic imaging locating and detecting device as claimed in claim 1, is characterized in that: the structural ultrasonic sensor quantity of described quadric surface is set to 16 or 32 or 64.
4. transformer station's ultrasonic imaging locating and detecting device as claimed in claim 1, 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.
5. transformer station's ultrasonic imaging locating and detecting device as claimed in claim 1, it is characterized in that: described ultrasonic sensor comprises the hollow type plastic casing that is arranged at the structural end opening one end sealing of described quadric surface, the matching layer that piezoelectric ceramic piece is set and is connected with piezoelectric ceramic piece lower surface in described hollow type plastic casing, the inner shielding material of filling of described hollow type plastic casing, described matching layer upper surface is provided with to be centered around presses described electroceramics sheet becket around, between described becket and described piezoelectric ceramic piece, form a resonator cavity, the negative pole of described piezoelectric ceramic piece is electrically connected to becket, the positive pole of external connection terminals is electrically connected to the positive pole of piezoelectric ceramic piece, the negative pole of external connection terminals is electrically connected to becket.
6. transformer station's ultrasonic imaging locating and detecting device as described in as arbitrary in claim 1-5, is characterized in that: described quadric surface structure cambered surface front end circumferentially arranges the tubaeform leading note plate protracting.
7. transformer station's ultrasonic imaging locating and detecting device as described in as arbitrary in claim 1-5, 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.
8. transformer station's ultrasonic imaging locating and detecting device as described in as arbitrary in claim 1-5, is characterized in that: described processor connects warning device, and described warning device comprises sound and flash alarm.
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| CN201320377076.7U CN203405569U (en) | 2013-06-28 | 2013-06-28 | Ultrasonic image positioning detection device for transformer stations |
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| CN201320377076.7U CN203405569U (en) | 2013-06-28 | 2013-06-28 | Ultrasonic image positioning detection device for transformer stations |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103344943A (en) * | 2013-06-28 | 2013-10-09 | 河南省电力公司南阳供电公司 | Ultrasonic image positioning detecting device of transformer substation |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103344943A (en) * | 2013-06-28 | 2013-10-09 | 河南省电力公司南阳供电公司 | Ultrasonic image positioning detecting device of transformer substation |
| CN103344943B (en) * | 2013-06-28 | 2018-11-16 | 国网河南省电力公司南阳供电公司 | A kind of substation's ultrasonic imaging locating and detecting device |
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