CN112230107A - Partial discharge monitoring and positioning device, method, computer equipment and storage medium - Google Patents
Partial discharge monitoring and positioning device, method, computer equipment and storage medium Download PDFInfo
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- 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
- G01R31/1209—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 using acoustic measurements
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- 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
- G01R31/1218—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 using optical methods; using charged particle, e.g. electron, beams or X-rays
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
- G01S5/18—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using ultrasonic, sonic, or infrasonic waves
- G01S5/22—Position of source determined by co-ordinating a plurality of position lines defined by path-difference measurements
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/70—Determining position or orientation of objects or cameras
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/30—Subject of image; Context of image processing
- G06T2207/30232—Surveillance
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Abstract
The application relates to a partial discharge monitoring and positioning device, a partial discharge monitoring and positioning method, computer equipment and a storage medium. The partial discharge monitoring and positioning device comprises a measuring unit and a control unit, wherein the measuring unit comprises an image acquisition sensor and an acoustic wave sensor array, and the image acquisition sensor and the acoustic wave sensor array are in communication connection with the control unit; and the control unit is used for receiving the measurement data of the equipment to be measured, which is acquired by the image acquisition sensor and the acoustic wave sensor array, and calculating and determining the partial discharge position of the equipment to be measured according to the measurement data. In this application, gather the image data of the equipment that awaits measuring through image acquisition sensor, receive the sound wave data that the equipment that awaits measuring produced through sound wave sensor array, the control unit is according to image data and sound wave data, can pinpoint the partial discharge position and combine image display to come out, compares infrared detection, and the result is more directly perceived clear.
Description
Technical Field
The present application relates to the field of vehicle networking technologies, and in particular, to a partial discharge monitoring and positioning apparatus, a partial discharge monitoring and positioning method, a computer device, and a storage medium.
Background
The partial discharge phenomenon mainly refers to the discharge phenomenon which occurs in a partial range under the action of a strong enough electric field when the electric equipment is insulated. This discharge phenomenon is limited to causing only a local short of insulation between conductors without forming a conductive path. Each time, the local discharge has some influence on an insulating medium, the slight local discharge has small influence on the insulation of the power equipment, and the reduction of the insulation strength is slow; and strong partial discharge causes a rapid decrease in the dielectric strength. This is an important factor for causing insulation damage of high-voltage electric power equipment, and is also an important sign of insulation deterioration.
Therefore, when designing the insulation of high-voltage power equipment, it is considered that relatively strong partial discharge is not allowed to occur in the insulation structure under the action of the long-term operating voltage. The monitoring of the equipment in operation needs to be strengthened, and when the partial discharge exceeds a certain degree, the equipment is required to be withdrawn from operation for maintenance or replacement.
At present, a commonly used partial discharge monitoring device for high-voltage power equipment has poor definition of an acquired image in working modes of infrared imaging modes, ultraviolet imaging modes and the like, and cannot meet the purpose of effective partial discharge monitoring.
Disclosure of Invention
In view of the above, it is necessary to provide a partial discharge monitoring and positioning apparatus, a partial discharge monitoring and positioning method, a computer device and a storage medium.
In a first aspect, a partial discharge monitoring and positioning device is provided, which includes a measurement unit and a control unit; the measuring unit comprises an image acquisition sensor and an acoustic wave sensor array; the image acquisition sensor and the acoustic wave sensor array are in communication connection with the control unit;
and the control unit is used for receiving the measurement data of the equipment to be measured, which is acquired by the image acquisition sensor and the acoustic wave sensor array, and calculating and determining the partial discharge position of the equipment to be measured according to the measurement data.
In one embodiment, the control unit is configured to perform filtering processing on the sound wave data in the measurement data, and calculate a sound source position according to the sound wave data after the filtering processing;
and the control unit is also used for determining target coordinates of the sound source position in the image data according to the sound source position and the image data in the measurement data, and determining the target coordinates as the partial discharge position.
In one embodiment, the control unit is further configured to calculate the discharge intensity according to the sound source position and the image data in the measurement data.
In one embodiment, the image acquisition sensor is arranged on the back of the partial discharge monitoring and positioning device;
and the image acquisition sensor is used for acquiring the image data of the equipment to be detected and transmitting the image data to the control unit.
In one embodiment, the image acquisition sensor is configured to, when acquiring image data of a device to be tested, compress the image data according to an environmental parameter, and transmit the compressed image data to the control unit; the ambient parameters include ambient light and ambient contrast.
In one embodiment, the image capture sensor transmits image data to the control unit via a universal serial bus.
In one embodiment, the measurement unit comprises an acoustic wave sensor array; the acoustic wave sensor array is arranged on the back of the partial discharge monitoring and positioning device;
and the acoustic wave sensor array is used for acquiring acoustic wave data of the equipment to be tested and transmitting the acoustic wave data to the control unit.
In one embodiment, after the acoustic wave data of the device to be tested is acquired, the acoustic wave sensor array performs data validity judgment on the acoustic wave data, and transmits the acoustic wave data after the data validity judgment to the control unit; and the effectiveness judgment is used for carrying out preliminary filtering judgment on the sound wave data.
In one embodiment, the acoustic wave sensor array transmits acoustic wave data to the control unit through the UART interface of the asynchronous transceiver transmitter.
In one embodiment, the partial discharge monitoring and positioning device further comprises a display;
and the display is used for displaying the partial discharge position determined by the control unit.
In a second aspect, a partial discharge monitoring and positioning method is provided, which includes:
acquiring image data and sound wave data of equipment to be tested;
carrying out filtering processing on the sound wave data according to a preset filtering algorithm;
and calculating the partial discharge position of the equipment to be measured according to the sound wave data and the image data after the filtering processing.
In one embodiment, the calculating the partial discharge position of the device under test according to the filtered acoustic wave data and the filtered image data includes:
determining the position of a sound source according to the sound wave data after filtering;
and determining target coordinates of the sound source position in the image data according to the sound source position and the image data, and determining the target coordinates as the partial discharge position.
In a third aspect, a computer device is provided, which includes a memory and a processor, where the memory stores a computer program, and the processor implements the partial discharge monitoring and positioning method according to any one of the second aspects when executing the computer program.
In a fourth aspect, a computer-readable storage medium is provided, on which a computer program is stored, and the computer program, when executed by a processor, implements the partial discharge monitoring and positioning method according to any one of the second aspects.
The partial discharge monitoring and positioning device comprises a measuring unit and a control unit, wherein the measuring unit comprises an image acquisition sensor and an acoustic wave sensor array, and the image acquisition sensor and the acoustic wave sensor array are in communication connection with the control unit; and the control unit is used for receiving the measurement data of the equipment to be measured, which is acquired by the image acquisition sensor and the acoustic wave sensor array, and calculating and determining the partial discharge position of the equipment to be measured according to the measurement data. In this application, gather the image data of the equipment that awaits measuring through image acquisition sensor, receive the sound wave data that the equipment that awaits measuring produced through sound wave sensor array, the control unit is according to image data and sound wave data, can pinpoint the partial discharge position and combine image display to come out, compares infrared detection, and the result is more directly perceived clear.
Drawings
FIG. 1 is a schematic diagram of a partial discharge monitoring and positioning device according to an embodiment;
FIG. 2 is a schematic diagram of an embodiment of a partial discharge monitoring positioning apparatus;
FIG. 3 is a schematic diagram of an embodiment of a partial discharge monitoring positioning apparatus;
FIG. 4 is a schematic diagram of an embodiment of a partial discharge monitoring positioning apparatus;
FIG. 5 is a schematic flow chart illustrating a partial discharge monitoring and positioning method according to an embodiment;
FIG. 6 is a schematic flow chart diagram illustrating a partial discharge monitoring and positioning method according to an embodiment;
FIG. 7 is a diagram illustrating an internal structure of a computer device according to an embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
Fig. 1 is a schematic view of a partial discharge monitoring and positioning apparatus provided in the present application. The partial discharge monitoring and positioning device comprises a measuring unit 01 and a control unit 02; the measuring unit 01 comprises an image acquisition sensor 11 and a sound wave sensor array 12; the image acquisition sensor 11 and the sound wave sensor array 12 are both in communication connection with the control unit.
And the control unit 02 is configured to receive the measurement data of the device to be measured, which is acquired by the image acquisition sensor 11 and the acoustic sensor array 12, and calculate and determine the partial discharge position of the device to be measured according to the measurement data.
The image acquisition sensor can be a high-definition camera, and acquired image data are two-dimensional high-definition images.
In this embodiment, the measurement unit collects image data of the device to be measured through the image collection sensor, and collects acoustic data of the device to be measured through the acoustic sensor array, and optionally, the measurement unit may package the collected image data and acoustic data according to an agreed format, package the collected image data and acoustic data into measurement data, and transmit the measurement data to the control unit. After receiving the measurement data, the control unit analyzes the measurement data according to an agreed format to obtain image data and sound wave data, optionally, the control unit may calculate a one-dimensional partial discharge position according to the sound wave data, and determine two-dimensional coordinate information of the one-dimensional partial discharge position in the image data according to the one-dimensional partial discharge position and the image data, so as to determine the partial discharge position of the device to be measured, which is not limited in this embodiment.
Optionally, the partial discharge monitoring and positioning device further includes a key, a memory chip, an alarm module, and other modules. The control unit performs control and interaction with each module, for example, the control unit performs control and interaction on the key and the alarm module through high and low potentials of pins, and the control unit processor performs control information data interaction on the memory chip by using a parallel interface, which is not limited in this embodiment.
The partial discharge monitoring and positioning device comprises a measuring unit and a control unit, wherein the measuring unit comprises an image acquisition sensor and an acoustic wave sensor array, and the image acquisition sensor and the acoustic wave sensor array are in communication connection with the control unit; and the control unit is used for receiving the measurement data of the equipment to be measured, which is acquired by the image acquisition sensor and the acoustic wave sensor array, and calculating and determining the partial discharge position of the equipment to be measured according to the measurement data. In this application, gather the image data of the equipment that awaits measuring through image acquisition sensor, receive the sound wave data that the equipment that awaits measuring produced through sound wave sensor array, the control unit is according to image data and sound wave data, can pinpoint the partial discharge position and combine image display to come out, compares infrared detection, and the result is more directly perceived clear.
In one embodiment, the control unit is configured to perform filtering processing on the sound wave data in the measurement data, calculate the sound source position according to the sound wave data after the filtering processing, determine target coordinates of the sound source position in the image data according to the sound source position and the image data in the measurement data, and determine the target coordinates as the partial discharge position.
In this embodiment, when calculating the data returned by the measurement unit, the control unit may first perform filtering processing on the acoustic wave data in the measurement data, for example, the filtering processing method may be a method such as an adaptive notch filter algorithm, a wiener filter noise reduction algorithm, or a combination algorithm of the adaptive notch filter algorithm and the wiener filter noise reduction algorithm, and the superposition filtering processing on the acoustic wave data is realized through the combination algorithm, so as to remove the interference signal or the noise signal, and retain the effective acoustic wave data. The control unit performs positioning calculation of the sound source position according to the effective sound wave data based on a microphone array sound source positioning method GCC-PHAT, SRP-PHAT algorithm, and determines a two-dimensional coordinate of the sound source position in the image data according to the calculated sound source position and the image data.
Optionally, in an embodiment, the control unit is further configured to calculate the discharge intensity according to the sound source position and image data in the measurement data.
In this embodiment, when the control unit calculates the data returned by the measurement unit, the control unit may further calculate the discharge intensity of the sound source data according to the sound source position and the image data in the measurement data, which is not limited in this embodiment.
In the embodiment, the sound wave data are filtered to shield noise interference, so that the obtained sound wave data are effective, the two-dimensional sound source position in the image is determined according to the one-dimensional information of the sound source position and the image data, and the partial discharge position can be visually and clearly determined.
In one embodiment, the image capturing sensor is disposed at the back of the partial discharge monitoring and positioning device, and is configured to capture image data of the device under test and transmit the image data to the control unit.
The image acquisition sensor is arranged on the back of the partial discharge monitoring and positioning device, and the schematic structural diagram of the image acquisition sensor is shown in fig. 2.
In this embodiment, the image capturing sensor may be a high-definition camera device, and the image capturing sensor captures high-definition image data of the device under test and transmits the image data to the control unit, so that the control unit calculates the partial discharge position according to the image data.
Optionally, in an embodiment, the image capturing sensor is configured to, when capturing image data of a device to be tested, compress the image data according to an environmental parameter, and transmit the compressed image data to the control unit; the ambient parameters include ambient light and ambient contrast.
In this embodiment, when the image acquisition sensor performs image acquisition on the device to be tested, the image acquisition sensor can adapt to optical conditions such as different environmental brightness and contrast, that is, the shooting parameters are adaptively adjusted according to the luminosity, contrast, and the like of the current environment, so as to obtain image data with the best shooting effect, after the image data is acquired, the image acquisition sensor can compress the shot image data, and return the compressed image data to the control unit.
Optionally, the image acquisition sensor transmits the image data to the control unit via a universal serial bus.
In this embodiment, the image acquisition sensor can shoot the parameter according to environmental parameter adaptive's adjustment for the image data of gathering is more effective, compares infrared detection, and the result is more directly perceived clear, and the image acquisition sensor passes through USB and gives the control unit image data transmission, compares in parallel bus, has reduced line connection quantity, has avoided the big problem of parallel data bus crosstalk, has improved data stability.
In one embodiment, the measurement unit comprises an acoustic wave sensor array; the acoustic wave sensor array is arranged on the back of the partial discharge monitoring and positioning device and used for collecting acoustic wave data of the equipment to be detected and transmitting the acoustic wave data to the control unit.
The acoustic wave sensor array is disposed on the back of the partial discharge monitoring and positioning device, and a schematic structural diagram of the acoustic wave sensor array is shown in fig. 3.
In this embodiment, the acoustic wave sensor array performs acoustic wave acquisition on the device to be tested, and transmits acquired acoustic wave data to the control unit.
Optionally, after the acoustic wave sensor array collects acoustic wave data of the device to be tested, data validity judgment is performed on the acoustic wave data, and the acoustic wave data after data validity judgment is transmitted to the control unit; and the effectiveness judgment is used for carrying out preliminary filtering judgment on the sound wave data.
In this embodiment, after the acoustic wave sensor array collects the acoustic wave data of the device to be tested, and the validity of the collected acoustic wave data is ensured, the acoustic wave data can be judged to be valid, that is, the collected acoustic wave data is filtered through a filtering algorithm, valid acoustic wave signals are retained, noise and invalid acoustic wave signals are removed, and after filtering, the acoustic wave signals after filtering are packaged according to an agreed format and transmitted to the control unit.
Optionally, the acoustic wave sensor array transmits the acoustic wave data to the control unit via an asynchronous transceiver transmitter UART interface.
In this embodiment, the sound source sensor array is composed of a high-sensitivity sound wave sensor, and can capture details of sound waves under a complex environment noise condition, so that accuracy and effectiveness of collected sound wave data are further improved.
In one embodiment, as shown in fig. 4, the partial discharge monitoring and positioning device further includes a display;
and the display is used for displaying the partial discharge position determined by the control unit.
In this embodiment, the control unit processor performs control information interaction on the display screen by using the LVDS flat cable, and after the control unit calculates and obtains the partial discharge position of the device under test, the control unit transmits the partial discharge position to the display through the LVDS flat cable, so that the display displays the partial discharge position.
In this embodiment, the control unit may send the partial discharge position to the display for displaying, so that an operator can visually and clearly see the partial discharge position.
The following describes in detail the technical solutions of the present application and how the technical solutions of the present application solve the above technical problems by embodiments and with reference to the drawings. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments. It should be noted that, the partial discharge monitoring and positioning method provided in the embodiments of fig. 5 to fig. 6 of the present application is mainly implemented as a partial discharge monitoring and positioning device.
In an embodiment, as shown in fig. 5, a partial discharge monitoring and positioning method is provided, which is described by taking an example that the method is applied to the partial discharge monitoring and positioning apparatus in fig. 1, and relates to a specific process that the partial discharge monitoring and positioning apparatus acquires image data and sound wave data of a device to be measured, performs filtering processing on the sound wave data according to a preset filtering algorithm, and calculates a partial discharge position of the device to be measured according to the sound wave data and the image data after the filtering processing, including:
s201, collecting image data and sound wave data of the equipment to be tested.
In this embodiment, the partial discharge monitoring and positioning device may collect image data of the device to be tested through the image collection sensor, where the image collection sensor may be a high definition camera device, the image collection sensor collects high definition image data of the device to be tested, and the sound wave sensor array collects sound wave data of the device to be tested, where the sound source sensor array is composed of a high sensitivity sound wave sensor, and this embodiment is not limited thereto.
S202, filtering the sound wave data according to a preset filtering algorithm.
In this embodiment, the partial discharge monitoring and positioning device may perform filtering processing on the acoustic wave data in the measurement data, for example, the filtering processing method may be a method such as an adaptive notch filter algorithm, a wiener filter noise reduction algorithm, or a combined algorithm of the adaptive notch filter algorithm and the wiener filter noise reduction algorithm, and the combined algorithm is used to perform superposition filtering processing on the acoustic wave data, remove an interference signal or a noise signal, and retain effective acoustic wave data.
And S203, calculating the partial discharge position of the equipment to be measured according to the sound wave data and the image data after the filtering processing.
In this embodiment, the partial discharge monitoring and positioning device performs positioning calculation of the sound source position according to effective sound wave data based on a microphone array sound source positioning method GCC-PHAT, SRP-PHAT algorithm, and determines two-dimensional coordinates of the sound source position in the image data according to the calculated sound source position and the image data.
In the partial discharge monitoring and positioning method, the partial discharge monitoring and positioning device acquires image data and sound wave data of the equipment to be tested, performs filtering processing on the sound wave data according to a preset filtering algorithm, and calculates the partial discharge position of the equipment to be tested according to the sound wave data and the image data after the filtering processing. In this application, partial discharge monitoring positioner passes through the image data of image acquisition sensor collection equipment to be measured, receives the sound wave data that equipment to be measured produced through the sound wave sensor array, and the control unit can pinpoint the partial discharge position and combine image display to come out according to image data and sound wave data, compares infrared detection, and the result is more directly perceived clear.
In one embodiment, as shown in fig. 6, the calculating the partial discharge position of the device under test according to the filtered acoustic wave data and the filtered image data includes:
and S301, determining the position of the sound source according to the sound wave data after the filtering processing.
In this embodiment, the partial discharge monitoring and locating device may calculate the acoustic time difference based on the TDOA algorithm according to the filtered acoustic data. The partial discharge monitoring and positioning device calculates the acoustic time difference by measuring the time for the signal to reach each acoustic sensor in the acoustic sensor array, and can determine the partial discharge position by using the acoustic time difference and the distance from the known partial discharge monitoring and positioning device to the equipment to be measured, which is not limited in this embodiment.
S302, determining target coordinates of the sound source position in the image data according to the sound source position and the image data, and determining the target coordinates as partial discharge positions.
In this embodiment, the partial discharge monitoring and locating device determines the two-dimensional coordinates of the sound source position in the image data according to the calculated sound source position and the image data, and optionally, the partial discharge monitoring and locating device may also represent the position of the sound source by drawing a symbol, for example, drawing a circle on the two-dimensional coordinates of the sound source position to represent the sound source position in the image, which is not limited in this embodiment.
In this embodiment, the partial discharge monitoring and positioning device determines the one-dimensional information of the partial discharge position by calculating the sound wave data, determines the two-dimensional information of the partial discharge information in the image according to the image data and the one-dimensional information of the partial discharge position, can accurately position the discharge position and display the discharge position in combination with the image, and compared with infrared detection, the result is more visual and clear.
The implementation principle and technical effect of the partial discharge monitoring and positioning method provided by the above embodiment are similar to those of the above embodiment, and are not described herein again.
It should be understood that although the various steps in the flowcharts of fig. 5-6 are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least some of the steps in fig. 5-6 may include multiple steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, which are not necessarily performed in sequence, but may be performed in turn or alternately with other steps or at least some of the other steps.
In one embodiment, a computer device is provided, which may be a server, the internal structure of which may be as shown in fig. 7. The computer device includes a processor, a memory, a communication interface, a display screen, and an input device connected by a system bus. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device comprises a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of an operating system and computer programs in the non-volatile storage medium. The communication interface of the computer device is used for carrying out wired or wireless communication with an external terminal, and the wireless communication can be realized through WIFI, an operator network, NFC (near field communication) or other technologies. The computer program is executed by a processor to implement a partial discharge monitoring and positioning method. The display screen of the computer equipment can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer equipment can be a touch layer covered on the display screen, a key, a track ball or a touch pad arranged on the shell of the computer equipment, an external keyboard, a touch pad or a mouse and the like.
Those skilled in the art will appreciate that the architecture shown in fig. 7 is merely a block diagram of some of the structures associated with the disclosed aspects and is not intended to limit the computing devices to which the disclosed aspects apply, as particular computing devices may include more or less components than those shown, or may combine certain components, or have a different arrangement of components.
In one embodiment, a computer device is provided, comprising a memory and a processor, the memory having a computer program stored therein, the processor implementing the following steps when executing the computer program:
acquiring image data and sound wave data of equipment to be tested;
carrying out filtering processing on the sound wave data according to a preset filtering algorithm;
and calculating the partial discharge position of the equipment to be measured according to the sound wave data and the image data after the filtering processing.
In an embodiment, the calculating the partial discharge position of the device under test according to the filtered acoustic wave data and the filtered image data includes:
and determining the sound source position according to the sound wave data after the filtering processing.
And determining target coordinates of the sound source position in the image data according to the sound source position and the image data, and determining the target coordinates as the partial discharge position.
The implementation principle and technical effect of the computer device provided by the above embodiment are similar to those of the above method embodiment, and are not described herein again.
In one embodiment, a computer-readable storage medium is provided, having a computer program stored thereon, which when executed by a processor, performs the steps of:
acquiring image data and sound wave data of equipment to be tested;
carrying out filtering processing on the sound wave data according to a preset filtering algorithm;
and calculating the partial discharge position of the equipment to be measured according to the sound wave data and the image data after the filtering processing.
In an embodiment, the calculating the partial discharge position of the device under test according to the filtered acoustic wave data and the filtered image data includes:
and determining the sound source position according to the sound wave data after the filtering processing.
And determining target coordinates of the sound source position in the image data according to the sound source position and the image data, and determining the target coordinates as the partial discharge position.
The implementation principle and technical effect of the computer-readable storage medium provided by the above embodiments are similar to those of the above method embodiments, and are not described herein again.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database or other medium used in the embodiments provided herein can include at least one of non-volatile and volatile memory. Non-volatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical storage, or the like. Volatile Memory can include Random Access Memory (RAM) or external cache Memory. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM), among others.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. The partial discharge monitoring and positioning device is characterized by comprising a measuring unit and a control unit; the measuring unit comprises an image acquisition sensor and an acoustic wave sensor array; the image acquisition sensor and the acoustic wave sensor array are in communication connection with the control unit;
the control unit is used for receiving the measurement data of the equipment to be measured, which are acquired by the image acquisition sensor and the acoustic wave sensor array, and calculating and determining the partial discharge position of the equipment to be measured according to the measurement data.
2. The partial discharge monitoring and positioning device according to claim 1, wherein the control unit is configured to perform filtering processing on the sound wave data in the measurement data, and calculate a sound source position according to the sound wave data after the filtering processing;
the control unit is further configured to determine a target coordinate of the sound source position in the image data according to the sound source position and the image data in the measurement data, and determine the target coordinate as the partial discharge position.
3. The partial discharge monitoring and positioning device according to claim 1, wherein the image capturing sensor is disposed on a back of the partial discharge monitoring and positioning device;
the image acquisition sensor is used for acquiring the image data of the equipment to be detected and transmitting the image data to the control unit.
4. The partial discharge monitoring and positioning device according to claim 3, wherein the image capturing sensor is configured to compress the image data according to an environmental parameter when capturing the image data of the device under test, and transmit the compressed image data to the control unit; the ambient parameters include ambient light and ambient contrast.
5. The partial discharge monitoring and positioning device of claim 4, wherein the image acquisition sensor transmits the image data to the control unit through a universal serial bus.
6. The partial discharge monitoring and positioning device of claim 1, wherein the measurement unit comprises an acoustic wave sensor array; the acoustic wave sensor array is arranged on the back of the partial discharge monitoring and positioning device;
and the acoustic wave sensor array is used for acquiring acoustic wave data of the equipment to be tested and transmitting the acoustic wave data to the control unit.
7. The partial discharge monitoring and positioning device according to claim 6, wherein the acoustic wave sensor array performs data validity judgment on the acoustic wave data after acquiring the acoustic wave data of the device under test, and transmits the acoustic wave data after the data validity judgment to the control unit; and the effectiveness judgment is used for carrying out preliminary filtering judgment on the sound wave data.
8. The partial discharge monitoring positioning device of any one of claims 1-7, wherein the partial discharge monitoring positioning device further comprises a display;
the display is used for displaying the partial discharge position determined by the control unit.
9. A partial discharge monitoring and positioning method, comprising:
acquiring image data and sound wave data of equipment to be tested;
filtering the sound wave data according to a preset filtering algorithm;
and calculating the partial discharge position of the equipment to be tested according to the sound wave data after filtering and the image data.
10. The method according to claim 9, wherein the calculating the partial discharge position of the device under test according to the filtered acoustic wave data and the image data comprises:
determining the position of a sound source according to the sound wave data after the filtering processing;
and determining target coordinates of the sound source position in the image data according to the sound source position and the image data, and determining the target coordinates as the partial discharge position.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113049926A (en) * | 2021-03-09 | 2021-06-29 | 海南电网有限责任公司儋州供电局 | Power equipment video monitoring device based on partial discharge signal |
| CN114545522A (en) * | 2022-02-25 | 2022-05-27 | 中电鼎润(广州)科技发展有限公司 | Detection device and method for determining potential safety hazard object |
| CN114626423A (en) * | 2022-05-12 | 2022-06-14 | 杭州兆华电子股份有限公司 | Partial discharge signal imaging method for improving Kmeans |
| CN114859194A (en) * | 2022-07-07 | 2022-08-05 | 杭州兆华电子股份有限公司 | Non-contact-based partial discharge detection method and device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113049926A (en) * | 2021-03-09 | 2021-06-29 | 海南电网有限责任公司儋州供电局 | Power equipment video monitoring device based on partial discharge signal |
| CN114545522A (en) * | 2022-02-25 | 2022-05-27 | 中电鼎润(广州)科技发展有限公司 | Detection device and method for determining potential safety hazard object |
| CN114626423A (en) * | 2022-05-12 | 2022-06-14 | 杭州兆华电子股份有限公司 | Partial discharge signal imaging method for improving Kmeans |
| CN114859194A (en) * | 2022-07-07 | 2022-08-05 | 杭州兆华电子股份有限公司 | Non-contact-based partial discharge detection method and device |
| CN114859194B (en) * | 2022-07-07 | 2022-09-23 | 杭州兆华电子股份有限公司 | Non-contact-based partial discharge detection method and device |
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