CN116699329A - Substation space voiceprint visual imaging method - Google Patents
Substation space voiceprint visual imaging method Download PDFInfo
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- CN116699329A CN116699329A CN202310654869.7A CN202310654869A CN116699329A CN 116699329 A CN116699329 A CN 116699329A CN 202310654869 A CN202310654869 A CN 202310654869A CN 116699329 A CN116699329 A CN 116699329A
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- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
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- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
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- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
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Abstract
The scheme discloses a transformer substation space voiceprint visual imaging method, which comprises the steps of setting a plurality of acquisition devices according to the space layout of primary equipment of a transformer substation so as to acquire image data and voiceprint information of the primary equipment of the transformer substation; constructing a substation space voiceprint directional monitoring model according to the space layout of the substation primary equipment and the position of the acquisition device so as to determine the position of each monitored substation primary equipment; and acquiring image data, voiceprint information and the like of primary equipment of a transformer substation and load information of the primary equipment of each transformer substation, comparing auxiliary information with voiceprint information under the same load information stored in a voiceprint standard library, judging whether the operation state of the primary equipment of the transformer substation is normal or not, if so, filling an operation abnormality mark on the basis of the image data, and visually presenting the image data filled with the abnormality mark with the voiceprint information and the like. The scheme can be used for high-voltage equipment inspection and quick positioning of abnormal noise or discharge areas.
Description
Technical Field
The application relates to the technical field of power equipment monitoring, in particular to a substation space voiceprint visual imaging method.
Background
With the development of intelligent power grid technology, the comprehensive coverage, the comprehensive penetration and the comprehensive sharing of power data are realized, and the comprehensive perception of the power grid is realized. The digital transformation effectively releases the data value, promotes the digital power grid to be transformed from 'display' to 'application', deepens the practicality in each service field, and emerges a batch of service scene applications such as source network load interaction analysis and the like, and supports the data application requirements of the power grid and related parties in all directions; meanwhile, the precise defect positioning and fault early warning technology of the power equipment is actively developed, and the reliable production of the power grid is improved.
The traditional ultrasonic detection is generally used for detecting partial discharge of a transformer main machine, a GIS and a switch cabinet, and is particularly suitable for detecting partial discharge of oil or partial discharge with a simple internal structure. The patent agency document with the application publication number of CN115166427A discloses an ultrasonic monitoring system for partial discharge of a switch cabinet, which comprises a partial discharge processing module, an ultrasonic sampling detection module, a monitoring alarm module and an information uploading processing module. This can detect the ultrasonic monitoring system of partial discharge detects the partial discharge condition of cubical switchboard through ultrasonic sampling detection module, when detecting that the partial discharge of cubical switchboard is greater than predetermineeing the standard, monitoring alarm module can send the early warning, tells staff that the partial discharge of cubical switchboard exceeds standard to realize carrying out safety monitoring to the cubical switchboard of partial discharge detection, carry out safety monitoring to the partial discharge of cubical switchboard can effectively avoid medium degradation and the damage that partial discharge arouses, know the insulating condition of device and the problem in the aspect of the installation. The traditional detection scheme has the advantages of relatively simple use, synchronous acquisition and analysis with current phase, and reasonable inference and positioning of internal partial discharge type. The method has the defects that the detection range is small, and partial discharge under the condition of complex internal structure cannot be positioned, and the method cannot be used for detecting and positioning long-distance partial discharge.
Disclosure of Invention
Aiming at the defects of the prior art, the scheme provides a transformer substation space voiceprint visual imaging method for solving the problems that the prior art is small in detection range and cannot be detected and positioned remotely.
In order to achieve the above purpose, the present solution is implemented by the following technical solutions:
a transformer substation space voiceprint visual imaging method comprises the following steps:
s1, a voiceprint and image composite acquisition device capable of ascending and descending, horizontally rotating or pitching adjustment is arranged according to the spatial layout of primary equipment of a transformer substation, and is used for acquiring image data, auxiliary thermal imaging information, auxiliary electromagnetic field information and voiceprint information of the primary equipment of the transformer substation;
s2, constructing a substation space voiceprint directional monitoring model according to the space layout of the substation primary equipment and the position of the voiceprint and image composite acquisition device so as to determine the position of each monitored substation primary equipment;
s3, acquiring image data, auxiliary thermal imaging information, auxiliary electromagnetic field information and voiceprint information of the substation primary equipment in real time during operation of the substation primary equipment, acquiring load information of each substation primary equipment in real time, comparing the voice information of the substation primary equipment with the voiceprint information under the same load information stored in a voiceprint standard library according to the load information, and auxiliary comparing the thermal imaging information of the auxiliary thermal imaging information with the thermal imaging information under the same load information stored in the thermal imaging standard library and the electromagnetic field information of the auxiliary electromagnetic field information with the electromagnetic field information stored in the electromagnetic field standard library, judging whether the operation state of the substation primary equipment is normal or not, if the operation state of the substation primary equipment is abnormal, filling operation abnormal marks on the basis of the image data, and performing independent or composite visual presentation of the image data filled with the abnormal marks and the voiceprint information, the auxiliary thermal imaging information and the auxiliary electromagnetic field information.
Preferably, the voiceprint and image composite acquisition device comprises a liftable support, a distribution box is arranged in the middle of the liftable support, a power module for supplying power to the voiceprint and image composite acquisition device is arranged in the distribution box, an angle adjusting mechanism is arranged at the upper end of the liftable support, and a camera, an array microphone, an infrared thermal imager and a quantum electromagnetic field composite sensor are arranged at the upper end of the angle adjusting mechanism.
Preferably, the array microphone is arranged around the periphery of the camera.
Preferably, the angle adjusting mechanism comprises a 360-degree horizontal holder fixed at the upper end of the liftable support and a pitching adjusting mechanism fixed at the upper side of the 360-degree horizontal holder, and the camera, the array microphone, the thermal infrared imager and the quantum electromagnetic field composite sensor are all fixed on the pitching adjusting structure.
Preferably, each voiceprint and image acquisition device is responsible for acquiring image data and voiceprint information of a plurality of substation primary devices, the 360-degree horizontal holder and the pitching adjustment mechanism are controlled to be adjusted in a reciprocating mode according to a set angle route, so that each voiceprint and image acquisition device can acquire image data, auxiliary thermal imaging information and voiceprint information of the plurality of substation primary devices in a circulating mode, and the lifting support, the 360-degree horizontal holder and the pitching adjustment mechanism are controlled to be adjusted in a reciprocating mode according to the set height and the set angle route, so that each voiceprint and image acquisition device can acquire auxiliary electromagnetic field information of the plurality of substation primary devices in a circulating mode, and the currently acquired image data, auxiliary thermal imaging information, auxiliary electromagnetic field information and substation primary devices corresponding to the voiceprint information are distinguished according to the rotating angle of the 360-degree horizontal holder and the pitching adjustment mechanism and a substation space voiceprint orientation monitoring model.
Preferably, when the voiceprint information of one of the primary devices of the transformer substation is detected to be abnormal in a preliminary step, and when both the auxiliary thermal imaging information and the auxiliary electromagnetic field information are abnormal, the operation state of the primary device of the transformer substation in the center is judged to be abnormal, if one of the auxiliary thermal imaging information and the auxiliary electromagnetic field information is abnormal, the 360-degree horizontal cradle head and the pitching adjustment mechanism are controlled to work, the voiceprint information of the primary devices of the transformer substation, which are primarily judged to be abnormal, is collected, whether the abnormal degree of the voiceprint information of the primary devices of other transformer substations in the periphery is higher than that of the primary devices of the transformer substation in the center is judged, and if the abnormal degree of the voiceprint information of the primary devices of the other transformer substations in the periphery is lower than that of the primary devices of the transformer substation in the center is judged, the operation state of the primary devices of the transformer substation in the center is finally judged;
if the voice print information abnormality degree of the surrounding other substation primary equipment is more than one substation primary equipment higher than the center, the voice print information of the surrounding other substation primary equipment is continuously collected and judged by taking the substation primary equipment with the highest abnormality degree as the center until the voice print information abnormality degree of the surrounding other substation primary equipment is lower than that of the central substation primary equipment, and finally, the operation state abnormality of the central substation primary equipment is judged.
Preferably, the voiceprint standard library is constructed based on voiceprint information under each determined load during field test.
Preferably, the voiceprint standard library is constructed as follows:
collecting voiceprint information under each determined load during on-site acceptance;
extracting features of the voiceprint information to convert the voiceprint information into vector information;
identifying current substation primary equipment according to the angle information of the 360-degree horizontal holder and the pitching adjusting mechanism, and giving a unique ID number to the current substation primary equipment so as to represent identity information of the substation primary equipment;
the load of the primary equipment of the transformer substation, the unique ID number and the vector information are correspondingly stored in a data table.
Preferably, the camera adopts a night vision camera.
Preferably, the night vision camera adopts an infrared night vision camera.
Compared with the prior art, the scheme has the beneficial effects that: the scheme can be used for high-voltage equipment inspection and rapid positioning of abnormal noise or discharge areas; the voice signal detection device can be deployed near key equipment for a long time, continuously acquire and analyze voice signals, evaluate the running health state of the equipment according to voice print characteristics, early warning is carried out on equipment faults, and the voice signal detection device is different from a traditional ultrasonic detector, has a larger coverage detection range and can rapidly locate fault points, intelligent voice print training and recognition are integrated with human experience, so that the human experience is more objective and can be inherited; the acquisition device can acquire data of a plurality of primary equipment of the transformer substation, and can accurately screen out equipment with abnormal operation by gradually radiating and comparing the abnormal degree of voiceprint information outwards, so that the monitoring cost is reduced, the utilization of auxiliary thermal imaging information and auxiliary electromagnetic field information can accelerate the judgment of the abnormal operation state of the primary equipment, and faults such as partial discharge and the like can be better visually identified.
Drawings
Fig. 1 is a schematic structural diagram of a voiceprint and image composite acquisition device used in a substation space voiceprint visualized imaging method according to an embodiment of the present application.
Fig. 2 is a schematic diagram after filling the operation abnormality flag on the basis of the image data of the substation primary equipment.
The device comprises a 1-liftable support, a 2-distribution box, a 3-camera, a 4-array microphone, a 5-horizontal cradle head, a 6-pitching adjusting structure, a 7-thermal infrared imager and an 8-quantum electromagnetic field composite sensor.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments.
The embodiment provides a technical scheme that: as shown in fig. 1 and fig. 2, the embodiment of the present application provides a substation space voiceprint visualization method, which includes:
and arranging a plurality of voiceprint and image composite acquisition devices according to the spatial layout of the primary equipment of the transformer substation, wherein the voiceprint and image composite acquisition devices are used for acquiring image data and voiceprint information of the primary equipment of the transformer substation. Specifically, the acquisition device comprises a liftable support 1, the liftable support 1 is preferably a metal support, an angle adjusting mechanism is arranged at the upper end of the liftable support 1, and a camera 3, an array microphone 4, a thermal infrared imager 7 and a quantum electromagnetic field compound sensor 8 are arranged at the upper end of the angle adjusting mechanism. The angle adjusting mechanism comprises a 360-degree horizontal holder 5, the 360-degree horizontal holder 5 is fixed at the upper end of the liftable support 1, a pitching adjusting structure 6 is fixed at the upper end of the 360-degree holder, the camera 3, the array microphone 4, the thermal infrared imager 7 and the quantum electromagnetic field composite sensor 8 are all fixed on the pitching adjusting structure 6, and the angle adjusting mechanism supports 360-degree horizontal pitching adjustment and pitching adjustment in a certain range. The array microphone 4 is preferably disposed around the outer periphery of the camera 3. The middle part of the liftable support 1 is provided with a distribution box 2, a power module is arranged in the distribution box 2, and the power module converts commercial power into voltages required by the work of the camera 3, the array microphone 4, the thermal infrared imager 7 and the quantum electromagnetic field composite sensor 8 so as to supply power to the two components respectively. The camera 3 can also adopt a night vision camera, so that primary equipment of the transformer substation can be clearly displayed under the night condition, the embodiment adopts an infrared night vision camera with low cost, and other types, such as a starlight camera, a black light camera or a full-color low-light camera with a light supplementing lamp, can be used, so that better night picture effect can be achieved. The quantum electromagnetic field composite sensor 8 adopts an NV color center quantum magnetic field sensor and an electric field intensity sensor composite sensor.
And constructing a substation space voiceprint directional monitoring model according to the space layout of the substation primary equipment and the position of the acquisition device so as to determine the position of each monitored substation primary equipment. Specifically, the primary equipment of the transformer substation is modeled, and the rotation angle and the pitching angle of the angle adjusting structure of the acquisition device are matched to determine the position of the monitored equipment.
During the operation of primary equipment of a transformer substation, image data, auxiliary thermal imaging information, auxiliary electromagnetic field information and voiceprint information of the primary equipment of the transformer substation are acquired in real time, load information of each primary equipment of the transformer substation is acquired in real time, the voice information of the primary equipment of the transformer substation is compared with the voiceprint information under the same load information stored in a voiceprint standard library mainly according to the load information, whether the operation state of the primary equipment of the transformer substation is normal or not is judged, if the operation state of the primary equipment of the transformer substation is abnormal, an operation abnormality mark is added on the basis of the image data, and the image data after the operation state abnormality mark, the voiceprint information, the auxiliary thermal imaging information and the auxiliary electromagnetic field information are independently or compositely visualized. In addition, the individual thermal imaging comparison is selected, and the abnormal discharge area can be rapidly identified through the real-time image data to be used as a fault judgment basis.
Each acquisition device is responsible for acquiring image data, auxiliary thermal imaging information, auxiliary electromagnetic field information and voiceprint information of a plurality of substation primary equipment, and is adjusted back and forth according to a set angle route by controlling the 360-degree horizontal holder 5 and the pitching adjusting mechanism, so that each acquisition device circularly acquires the image data, the auxiliary thermal imaging information and the voiceprint information of the plurality of substation primary equipment, and is adjusted back and forth according to a set height and an angle route by controlling the liftable support 1, the 360-degree horizontal holder 5 and the pitching adjusting mechanism 6, so that each voiceprint and image acquisition device circularly acquires the auxiliary electromagnetic field information of the plurality of substation primary equipment, and the currently acquired substation primary equipment corresponding to the image data and the voiceprint information is distinguished according to the rotating angle of the 360-degree horizontal holder 5 and the pitching adjusting mechanism and the substation space voiceprint orientation monitoring model.
Because one acquisition device is used for acquiring data of a plurality of substation primary equipment, when the voiceprint of one substation primary equipment is abnormal, the voiceprint information of other surrounding substation primary equipment can be interfered by the abnormal voiceprint. For example, a certain acquisition device is responsible for acquiring the primary equipment of the six substations A, B, C, D, E, F, the acquisition sequence is reciprocally circulated according to A, B, C, D, E, F, E, D, C, B, A, when voiceprint information of the D equipment is acquired, an abnormality is found, when the mutual distance of the equipment is not too far, the abnormal voiceprint information is possibly sent out by the operation abnormality of other equipment, and thus, the equipment is directly judged to be in abnormal operation, so that misjudgment is made. In order to avoid the occurrence of misjudgment, the auxiliary thermal imaging information and the auxiliary electromagnetic field information of the equipment can be checked first, the equipment can be judged to be abnormal directly when the auxiliary thermal imaging information and the auxiliary electromagnetic field information are abnormal, the judging speed is improved, and when one piece of auxiliary thermal imaging information and auxiliary electromagnetic field information is normal and insufficient to judge the equipment to be abnormal, the follow-up judging mode is adopted to improve the judging accuracy: when the voiceprint information of one transformer substation primary equipment is detected to be abnormal in a preliminary step, the 360-degree horizontal holder 5 and the pitching adjusting mechanism are controlled to work, the voiceprint information of other surrounding transformer substation primary equipment is collected by taking the transformer substation primary equipment which is primarily judged to be abnormal in the voiceprint information as the center according to the spatial layout of the transformer substation primary equipment, whether the abnormal degree of the voiceprint information of the other surrounding transformer substation primary equipment is higher than that of the central transformer substation primary equipment is judged, and if the abnormal degree of the voiceprint information of the other surrounding transformer substation primary equipment is lower than that of the central transformer substation primary equipment, the operation state of the central transformer substation primary equipment is finally judged to be abnormal. If the voice print information abnormality degree of the surrounding other substation primary equipment is more than one substation primary equipment higher than the center, the voice print information of the surrounding other substation primary equipment is continuously collected and judged by taking the substation primary equipment with the highest abnormality degree as the center until the voice print information abnormality degree of the surrounding other substation primary equipment is lower than that of the central substation primary equipment, and finally, the operation state abnormality of the central substation primary equipment is judged.
The voiceprint standard library is constructed based on voiceprint information under each determined load in field test. Specifically, the voiceprint standard library is constructed as follows:
and collecting voiceprint information under each determined load during on-site acceptance. The respective determined loads may be selected to be a plurality of loads below the rated load according to the set load difference. The magnitude of the difference can be selected according to actual needs, and the smaller the difference is, the higher the judgment accuracy is relatively. When matching voiceprint information according to load, it may happen that the load is not exactly the same, the application matches by the closest load.
And extracting features of the voiceprint information to convert the voiceprint information into vector information.
And identifying the current primary equipment of the transformer substation according to the angle information of the 360-degree horizontal holder 5 and the pitching adjusting mechanism, and giving the unique ID number to the current primary equipment of the transformer substation so as to represent the identity information of the primary equipment of the transformer substation.
The load of the primary equipment of the transformer substation, the unique ID number and the vector information are correspondingly stored in a data table.
The foregoing is only a preferred embodiment of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art, who is within the scope of the present application, should make equivalent substitutions or modifications according to the technical scheme of the present application and the inventive concept thereof, and should be covered by the scope of the present application.
Claims (10)
1. A transformer substation space voiceprint visual imaging method is characterized by comprising the following steps:
s1, a voiceprint and image composite acquisition device capable of ascending and descending, horizontally rotating and pitching adjustment is arranged according to the spatial layout of primary equipment of a transformer substation, and is used for acquiring image data, auxiliary thermal imaging information, auxiliary electromagnetic field information and voiceprint information of the primary equipment of the transformer substation;
s2, constructing a substation space voiceprint directional monitoring model according to the space layout of the substation primary equipment and the position of the voiceprint and image composite acquisition device so as to determine the position of each monitored substation primary equipment;
s3, acquiring image data, auxiliary thermal imaging information, auxiliary electromagnetic field information and voiceprint information of the substation primary equipment in real time during operation of the substation primary equipment, acquiring load information of each substation primary equipment in real time, comparing the voice information of the substation primary equipment with the voiceprint information under the same load information stored in a voiceprint standard library according to the load information, and auxiliary comparing the thermal imaging information of the auxiliary thermal imaging information with the thermal imaging information under the same load information stored in the thermal imaging standard library and the electromagnetic field information of the auxiliary electromagnetic field information with the electromagnetic field information stored in the electromagnetic field standard library, judging whether the operation state of the substation primary equipment is normal or not, if the operation state of the substation primary equipment is abnormal, filling operation abnormal marks on the basis of the image data, and performing independent or composite visual presentation of the image data filled with the abnormal marks and the voiceprint information, the auxiliary thermal imaging information and the auxiliary electromagnetic field information.
2. The substation space voiceprint visualization method according to claim 1, wherein: the voiceprint and image composite acquisition device comprises a liftable support (1), a distribution box (2) is arranged in the middle of the liftable support (1), a power module for supplying power to the voiceprint and image composite acquisition device is arranged in the distribution box (2), an angle adjusting mechanism is arranged at the upper end of the liftable support (1), and a camera (3), an array microphone (4), a thermal infrared imager (7) and a quantum electromagnetic field composite sensor (8) are arranged at the upper end of the angle adjusting mechanism.
3. The substation space voiceprint visualization method according to claim 2, wherein: the array microphone (4) is arranged around the periphery of the camera (3).
4. The substation space voiceprint visualization method according to claim 2, wherein: the angle adjusting mechanism comprises a 360-degree horizontal cradle head (5) fixed at the upper end of the liftable support (1) and a pitching adjusting mechanism (6) fixed at the upper side of the 360-degree horizontal cradle head (5), and the camera (3), the array microphone (4), the thermal infrared imager (7) and the quantum electromagnetic field composite sensor (8) are all fixed on the pitching adjusting structure.
5. The substation space voiceprint visualization method according to claim 4, wherein: each voiceprint and image acquisition device is responsible for acquiring image data, auxiliary thermal imaging information, auxiliary electromagnetic field information and voiceprint information of a plurality of substation primary devices, and is adjusted back and forth according to a set angle route by controlling the 360-degree horizontal holder (5) and the pitching adjustment mechanism (6) so that each voiceprint and image acquisition device can acquire the image data, the auxiliary thermal imaging information and the voiceprint information of the plurality of substation primary devices in a circulating manner, and is adjusted back and forth according to a set height and the set angle route by controlling the liftable support (1), the 360-degree horizontal holder (5) and the pitching adjustment mechanism (6) so that each voiceprint and image acquisition device can acquire the auxiliary electromagnetic field information of the plurality of substation primary devices in a circulating manner, and the currently acquired image data, auxiliary thermal imaging information, auxiliary electromagnetic field information and the substation primary devices corresponding to the voiceprint information are distinguished according to the rotating angle of the 360-degree horizontal holder (5) and the pitching adjustment mechanism (6) and the substation space voiceprint orientation monitoring model.
6. The substation space voiceprint visualization method according to claim 5, wherein: when the voiceprint information of one transformer substation primary equipment is initially detected to be abnormal, and the auxiliary thermal imaging information and the auxiliary electromagnetic field information are both abnormal, judging that the operation state of the transformer substation primary equipment of the center is abnormal, if one piece of information is normal in the auxiliary thermal imaging information and the auxiliary electromagnetic field information, controlling the 360-degree horizontal cradle head (5) and the pitching adjusting mechanism (6) to work, taking the transformer substation primary equipment which is initially judged to be abnormal in the voiceprint information as the center, collecting the voiceprint information of other surrounding transformer substation primary equipment, judging whether the abnormality degree of the voiceprint information of the surrounding other transformer substation primary equipment is higher than that of the central transformer substation primary equipment, and if the abnormality degree of the voiceprint information of the surrounding other transformer substation primary equipment is lower than that of the central transformer substation primary equipment, finally judging that the operation state of the transformer substation primary equipment of the center is abnormal;
if the voice print information abnormality degree of the surrounding other substation primary equipment is more than one substation primary equipment higher than the center, the voice print information of the surrounding other substation primary equipment is continuously collected and judged by taking the substation primary equipment with the highest abnormality degree as the center until the voice print information abnormality degree of the surrounding other substation primary equipment is lower than that of the central substation primary equipment, and finally, the operation state abnormality of the central substation primary equipment is judged.
7. The substation space voiceprint visualization method according to claim 4, wherein: the voiceprint standard library is constructed based on voiceprint information under each determined load during field inspection.
8. The substation space voiceprint visualization method according to claim 7, wherein the voiceprint standard library is constructed as follows:
collecting voiceprint information under each determined load during on-site acceptance;
extracting features of the voiceprint information to convert the voiceprint information into vector information;
identifying current primary equipment of the transformer substation according to the angle information of the 360-degree horizontal holder (5) and the pitching adjusting mechanism (6), and giving a unique ID number to the current primary equipment of the transformer substation so as to represent the identity information of the primary equipment of the transformer substation;
the load of the primary equipment of the transformer substation, the unique ID number and the vector information are correspondingly stored in a data table.
9. A recognition analysis apparatus for automatically recognizing the status of a device in a protective screen of a transformer substation according to claim 3, wherein: the camera adopts a night vision camera.
10. The recognition analysis device for automatically recognizing states of device in protection screen of transformer substation according to claim 9, wherein: the night vision camera adopts an infrared night vision camera.
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