An acoustic image-based power equipment detection device and a method of using the same

Abstract

This invention discloses a power equipment detection device based on acoustic images and its usage method. The detection device includes a mounting component: a base; a movable frame disposed on the base and reciprocating horizontally along the base; a sensor disposed on the movable frame and reciprocating vertically along the movable frame; a driving device that drives the movable frame to reciprocate horizontally along the base and drives the sensor to reciprocate vertically along the movable frame to adjust the sensor's position. A controller sends driving commands to the driving device to adjust the sensor to a preset position; sends acquisition commands to the sensor to acquire sound field distribution cloud map data of the power equipment at the preset position; and processes the sound field distribution cloud map data of the power equipment to obtain the location data of abnormal power equipment. This invention can adjust the sensor to the optimal detection position of the power equipment, thereby improving the detection accuracy of the power equipment.

Description

Technical Field

[0001] This invention relates to the field of power detection technology, and in particular to a power equipment detection device based on acoustic images and its usage method. Background Technology

[0002] In recent years, with the development of the social economy and the progress of science and technology, the electricity demand of individuals, businesses and enterprises has been gradually increasing. In order to adapt to the growth of electricity demand, the voltage level of the power grid has also been continuously improved, which has put forward higher requirements for the reliability and security of power supply.

[0003] For power equipment in a power supply system, reliability is generally ensured through regular inspections. Traditional inspection methods involve manual checks, which are difficult and have low safety margins for large power equipment (such as equipment within substations). To address this drawback, current substation equipment inspections utilize sensor arrays to collect sound field data. This method is widely used due to its flexible deployment, simple setup, minimal impact on equipment, and quick and easy measurement. However, the sensor arrays deployed in existing substations are in fixed positions. While they perform well on nearby equipment, for more distant equipment, errors in time delay estimation and signal propagation speed increase, reducing detection accuracy and impacting equipment reliability. Summary of the Invention

[0004] The purpose of this invention is to provide a power equipment detection device and its usage method based on acoustic images. The sensor position can be adjusted to the optimal detection position of the power equipment through a driving device, thereby improving the detection accuracy of the power equipment.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution:

[0006] An electrical equipment detection device based on acoustic images, comprising:

[0007] The mounting components include: a base located next to the electrical equipment and mounted on a bearing surface; and a movable frame mounted on the base and capable of reciprocating horizontally along the base.

[0008] A sensor is mounted on the movable frame and moves back and forth vertically along the movable frame to collect sound field distribution cloud map data of the power equipment.

[0009] A driving device, connected to the base, the movable frame, and the sensor respectively, is used to drive the movable frame to reciprocate horizontally along the base and to drive the sensor to reciprocate vertically along the movable frame, thereby adjusting the position of the sensor; and

[0010] The controller communicates with both the sensor and the drive device, sending drive commands to the drive device to adjust the sensor to a preset position, and sending acquisition commands to the sensor to acquire sound field distribution cloud map data of the power equipment at the preset position. It also processes the sound field distribution cloud map data of the power equipment to obtain the location data of the abnormal power equipment.

[0011] Optionally, the side wall of the base is provided with a horizontal groove extending in the horizontal direction, and a guide rod is provided in the horizontal groove, and the extension direction of the guide rod is the same as the extension direction of the horizontal groove.

[0012] The movable frame is fitted onto the guide rod at one end near the bearing surface, and the movable frame reciprocates along the guide rod in the horizontal direction.

[0013] Optionally, a receiving space is provided between the end face of the base away from the bearing surface and the movable frame; the driving device includes:

[0014] A rack is fixed to the end face of the base away from the bearing surface; and the extending direction of the rack is the same as the extending direction of the guide rod.

[0015] A first motor is fixed to the side wall of the movable frame; the output shaft of the first motor passes through the side wall of the movable frame and extends into the receiving space, and the output shaft of the first motor is rotatably connected to the side wall of the movable frame; and

[0016] The gear is located within the accommodating space. Its inner ring is fixedly connected to the output shaft of the first motor, and its outer ring is meshed with the rack. The output shaft of the first motor rotates to drive the gear to travel along the rack, thereby driving the movable frame to reciprocate along the guide rod in the horizontal direction.

[0017] Optionally, the side wall of the movable frame is provided with a vertical groove extending in a vertical direction, and a threaded rod is provided in the vertical groove; the extension direction of the threaded rod is the same as the extension direction of the vertical groove, and a slider for supporting the sensor is sleeved on the threaded rod;

[0018] The slider and the threaded rod are connected by threads, and the rotation of the threaded rod causes the slider and the sensor to reciprocate along the threaded rod in the vertical direction.

[0019] Optionally, the driving device includes: a second motor, fixed to the side wall of the movable frame; the output shaft of the second motor is fixedly connected to the threaded rod, and the rotation of the output shaft of the second motor drives the threaded rod to rotate synchronously, so as to drive the slider and the sensor to reciprocate along the threaded rod in the vertical direction.

[0020] Optionally, the power equipment detection device based on acoustic images further includes: a camera module, disposed on the movable frame, for capturing images of the power equipment and acquiring camera data to determine whether the sensor is located at the preset position.

[0021] Optionally, the controller also communicates with the camera module to send shooting instructions to the camera module so that the camera module can capture images of the power equipment.

[0022] Optionally, the controller includes:

[0023] The wireless transceiver module communicates wirelessly with the camera module, the first motor, the second motor, and the sensor, respectively, and is used to send the shooting command to the camera module, the driving command to the first motor and the second motor, and the acquisition command to the sensor, and to receive the camera data and the sound field distribution cloud map data of the power equipment.

[0024] The data processing module, connected to the wireless transceiver module, is used to process the camera data to determine whether the sensor is located at the preset position, and to process the sound field distribution cloud map data of the power equipment to obtain the location data of the abnormal power equipment.

[0025] Based on the same inventive concept, the present invention also provides a method for using the power equipment detection device based on acoustic images as described above, comprising:

[0026] Determine whether the sensor is located at the preset position;

[0027] If the sensor is not in the preset position, the controller sends the driving command to the driving device so that the driving device adjusts the sensor to the preset position.

[0028] The sensor is located at the preset position, causing the controller to send the acquisition command to the sensor, so that the sensor acquires the sound field distribution cloud map data of the power equipment at the preset position; and

[0029] The controller processes the sound field distribution cloud map data of the power equipment to obtain the location data of the abnormal power equipment.

[0030] Optionally, the step of determining whether the sensor is located at the preset position includes:

[0031] The controller sends a shooting command to the camera module;

[0032] The camera module captures images of the power equipment according to the shooting command to acquire video data; and

[0033] Based on the camera data, determine whether the sensor is located at the preset position.

[0034] Compared with the prior art, the present invention has at least one of the following advantages:

[0035] This invention provides a power equipment detection device and its usage method based on acoustic images. The mounting components include a base and a movable frame that reciprocates horizontally along the base. A sensor is mounted on the movable frame and reciprocates vertically along the movable frame. The controller can send driving commands to a drive device connected to the base, the movable frame, and the sensor, so that the drive device adjusts the sensor to a preset position. The controller can also send acquisition commands to the sensor, so that the sensor acquires sound field distribution cloud map data of the power equipment at the preset position, thereby obtaining the location data of abnormal power equipment based on the sound field distribution cloud map data of the power equipment, and thus completing the status detection of the power equipment.

[0036] In the driving device of the present invention, the rack is fixed to the end face of the base away from the bearing surface, the first motor is fixed to the side wall of the movable frame, and the output shaft of the first motor passes through the side wall of the movable frame and extends into the receiving space; the inner ring of the gear located in the receiving space can be fixed to the output shaft of the first motor, and the outer ring of the gear can mesh with the rack. When the output shaft of the first motor rotates, it drives the gear to rotate. During the rotation of the gear, it travels on the rack, thereby driving the movable frame to move back and forth along the fixed frame in the horizontal direction, thereby adjusting the position of the movable frame and the sensor in the horizontal direction.

[0037] In this invention, the output shaft of the second motor in the driving device is fixedly connected to the threaded rod set on the movable frame. When the output shaft of the second motor rotates, it drives the threaded rod to rotate synchronously. During the rotation of the threaded rod, the slider sleeved on the threaded rod and the sensor fixed on the slider move back and forth along the threaded rod in the vertical direction to adjust the position of the sensor in the vertical direction.

[0038] In this invention, the position of the sensor is adjustable. By adjusting the position of the sensor to the optimal detection position of the power equipment through the driving device, the detection accuracy of the power equipment can be improved. This avoids the problems of poor detection accuracy caused by long-distance detection in the prior art, such as large time delay estimation errors and large errors in the propagation speed of the signal source. Attached Figure Description

[0039] Figure 1 This is a schematic diagram of the structure of a power equipment detection device based on acoustic images provided in an embodiment of the present invention;

[0040] Figure 2 This is a schematic diagram of the connection between two mounting components in a power equipment detection device based on acoustic images provided in an embodiment of the present invention;

[0041] Figure 3 This is a schematic diagram of the controller in a power equipment detection device based on acoustic images provided in an embodiment of the present invention. Detailed Implementation

[0042] The following detailed description, in conjunction with the accompanying drawings and specific embodiments, provides a further detailed explanation of the power equipment detection device based on acoustic images proposed in this invention. The advantages and features of this invention will become clearer from the following description. It should be noted that the accompanying drawings are in a very simplified form and use non-precise proportions, used only to facilitate and clearly illustrate the embodiments of this invention. Please refer to the accompanying drawings to make the objectives, features, and advantages of this invention more apparent and understandable. It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are only for illustrative purposes to aid those skilled in the art and are not intended to limit the implementation conditions of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to the size, without affecting the effects and objectives achieved by this invention, should still fall within the scope of the technical content disclosed in this invention.

[0043] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0044] Combined with appendix Figures 1-3As shown, this embodiment provides a power equipment detection device based on acoustic images, including: a mounting component 10, which includes: a base 110, located next to the power equipment and disposed on a bearing surface; a movable frame 120, disposed on the base 110 and reciprocating along the base 110 in the horizontal direction; a sensor 130, disposed on the movable frame 120 and reciprocating along the movable frame 120 in the vertical direction, for collecting sound field distribution cloud map data of the power equipment; and a driving device, connected to the base 110, the movable frame 120 and the sensor 130 respectively, for driving the movable frame 120 along the base 110 in the horizontal direction. The device includes a horizontal reciprocating motion mechanism and a vertical reciprocating motion mechanism that drives the sensor 130 along the movable frame 120 to adjust the position of the sensor 130; a controller that communicates with both the sensor 130 and the driving device, sending driving commands to the driving device to adjust the sensor 130 to a preset position, sending acquisition commands to the sensor 130 to acquire sound field distribution cloud map data of the power equipment at the preset position, and processing the sound field distribution cloud map data of the power equipment to obtain the location data of the abnormal power equipment.

[0045] Please also refer to Figure 1 and Figure 2 The base 110 has a horizontal groove 111 extending in the horizontal direction on its side wall. A guide rod 112 is provided in the horizontal groove 111, and the extension direction of the guide rod 112 is the same as the extension direction of the horizontal groove 111. The movable frame 120 is sleeved on the guide rod 112 at one end near the bearing surface, and the movable frame 120 reciprocates along the guide rod 112 in the horizontal direction.

[0046] It is understood that a receiving space 150 is provided between the end face of the base 110 away from the bearing surface and the movable frame 120; the driving device includes: a rack 141, fixed to the end face of the base 110 away from the bearing surface; and the extending direction of the rack 141 is the same as the extending direction of the guide rod 112; a first motor 142, fixed to the side wall of the movable frame 120; the output shaft of the first motor 142 passes through the side wall of the movable frame 120 and extends into the receiving space 150, and the output shaft of the first motor 142 is rotatably connected to the side wall of the movable frame 120; and a gear 143, which is located in the receiving space 150, the inner ring of which is fixedly connected to the output shaft of the first motor 142, and the outer ring of which is meshed with the rack 141; and the output shaft of the first motor 142 rotates to drive the gear 143 to move along the rack 141, so as to drive the movable frame 120 to reciprocate in the horizontal direction along the guide rod 112.

[0047] Specifically, in this embodiment, several mounting components 10 can be evenly arranged next to the outdoor power equipment group of the substation. Each mounting component 10 can be equipped with several sensors 130, and all the sensors 130 on the mounting components 10 together form a mobile sensor array. This array allows for precise data collection from each power device in the power equipment group, thereby accurately detecting the status of the power equipment. More specifically, the movable frames 120 in two mounting components 10 can be connected by a crossbar 100, allowing the two mounting components 10 to form a stable gantry structure (e.g., Figure 2 (as shown), but the present invention is not limited thereto.

[0048] Specifically, in this embodiment, the bottom end of the base 110 in each of the mounting components 10 (i.e., the end of the base near the bearing surface) can be fixed to the bearing surface on the outside of the power equipment by bolts; a plurality of transverse grooves 111 are spaced apart on the first sidewall of the base 110, and a plurality of transverse grooves 111 are also spaced apart on the second sidewall of the base 110, and the first sidewall and the second sidewall of the base 110 are arranged opposite to each other; a guide rod 112 is fixedly installed in each of the transverse grooves 111. Preferably, the bearing surface is the ground; two transverse grooves 111 are spaced apart on the first sidewall and the second sidewall of the base 110, and the two transverse grooves 111 on the first sidewall of the base 110 and the two transverse grooves 111 on the second sidewall of the base 110 are symmetrically arranged, but the present invention is not limited thereto.

[0049] Specifically, in this embodiment, the bottom end of the movable frame 120 in each of the mounting components 10 (i.e., the end of the movable frame near the bearing surface) is provided with a U-shaped groove, and the opening of the U-shaped groove faces the bearing surface; a baffle 113 is fixedly installed on the inner wall of the bottom end of the U-shaped groove (i.e., the end of the U-shaped groove near the bearing surface), and the baffle 113 is provided with a through hole that matches the guide rod 112, so that the movable frame 120 is correspondingly sleeved on the guide rod 112 through the through hole, thereby allowing the movable frame 120 to reciprocate along the guide rod 112 in the horizontal direction, and thus allowing the sensor 130 disposed on the movable frame 120 to reciprocate along the guide rod 112 in the horizontal direction, so as to adjust the position of the movable frame 120 and the sensor 130 in the horizontal direction, but the present invention is not limited thereto.

[0050] Specifically, in this embodiment, when the bottom end of the movable frame 120 is sleeved on the guide rod 112 through the baffle 113 and the through hole, the gap between the top end face of the U-shaped groove (i.e., the end of the U-shaped groove away from the bearing surface) and the top end face of the base 110 (i.e., the end of the base away from the bearing surface) can form the receiving space 150; the first motor 142 can be fixed on the first side wall of the movable frame 120, and the output shaft of the first motor 142 can be connected to a connecting shaft 145 through a coupling, and the connecting shaft 145 passes through the first side wall of the movable frame 120 and extends into the receiving space 150. Preferably, the connecting shaft 145 also passes through the second side wall of the movable frame 120, and the connecting shaft 145 is rotatably connected to the first side wall and the second side wall of the movable frame 120 respectively through bearings; the first side wall and the second side wall of the movable frame 120 are arranged opposite to each other, and the first side wall of the movable frame 120 and the first side wall of the base 110 are located on the same side, and the second side wall of the movable frame 120 and the second side wall of the base 110 are located on the same side. More specifically, the inner ring of the gear 143 located in the accommodating space 150 can be fixed to the connecting shaft 145, and the outer ring of the gear 143 can mesh with the rack 141 fixed to the top end face of the base 110. When the output shaft of the first motor 142 rotates, it drives the connecting shaft 145 and the gear 143 to rotate. During the rotation of the gear 143, it travels on the rack 141, thereby driving the movable frame 120 to reciprocate along the fixed frame 110 in the horizontal direction, thereby adjusting the position of the movable frame 120 and the sensor 130 in the horizontal direction. Furthermore, since the movable frame 120 is sleeved on the guide rods 112 in the four transverse grooves 111 of the fixed frame 110, the movable frame 120 will not tilt during the reciprocating movement along the fixed frame 110 in the horizontal direction, thereby ensuring the stability of the sensor 130 set on the movable frame 120, and thus ensuring the reliability of the data collected by the sensor 130. However, the present invention is not limited thereto.

[0051] Please continue to refer to this. Figure 1 The movable frame 120 has a vertical groove 121 extending in a vertical direction on its side wall, and a threaded rod 122 is provided in the vertical groove 121. The extension direction of the threaded rod 122 is the same as the extension direction of the vertical groove 121, and a slider 123 for supporting the sensor 130 is sleeved on the threaded rod 122. The slider 123 and the threaded rod 122 are connected by threads, and the rotation of the threaded rod 122 causes the slider 123 and the sensor 130 to reciprocate in the vertical direction along the threaded rod 122.

[0052] It is understood that the driving device includes: a second motor 144, fixed to the side wall of the movable frame 120; the output shaft of the second motor 144 is fixedly connected to the threaded rod 122, and the rotation of the output shaft of the second motor 144 drives the threaded rod 122 to rotate synchronously, so as to drive the slider 123 and the sensor 130 to reciprocate along the threaded rod 122 in the vertical direction.

[0053] Specifically, in this embodiment, several second motors 144 can be fixed to the second side wall of the movable frame 120, so that the second motors 144 and the first motor 142 are not located on the same side, thereby preventing interference between the second motors 144 and the first motor 142. Several vertical grooves 121 can be spaced apart on the second side wall of the movable frame 120, and a threaded rod 122 is rotatably installed in each vertical groove 121. A limiting groove is also provided on the inner wall of each vertical groove 121, and the extending direction of the limiting groove is the same as the extending direction of the vertical groove 121. The limiting groove engages with a slider 123 sleeved on the corresponding threaded rod 122, restricting the slider 123 to move only in the vertical direction, so that when the threaded rod 122 rotates, the slider 123 and the sensor 130 reciprocate only along the threaded rod 122 in the vertical direction. More specifically, the output shaft of each of the second motors 144 can be fixedly connected to one end of the threaded rod 122, and the axial direction of the output shaft of the second motor 144 is the same as the axial direction of the threaded rod 122, so that the second motor 144, the threaded rod 122, the slider 123 and the limiting groove can form a straight line module. When the output shaft of the second motor 144 rotates, it drives the threaded rod 122 to rotate synchronously. During the rotation of the threaded rod 122, the slider 123 and the sensor 130 fixed on the slider 123 reciprocate along the threaded rod 122 in the vertical direction to adjust the position of the sensor 130 in the vertical direction. Preferably, the bottom end of the movable frame 120 is provided with a plurality of motor grooves 146, each motor groove 146 is used to accommodate one of the second motors 144; and the second motors 144 are arranged in a one-to-one correspondence with the threaded rods 122, and the motor grooves 146 are arranged in a one-to-one correspondence with the vertical grooves 121, but the present invention is not limited thereto.

[0054] Please also refer to Figure 1 and Figure 3The acoustic image-based power equipment detection device further includes a camera module 160, mounted on the movable frame 120, for capturing images of the power equipment and acquiring image data to determine whether the sensor 130 is located at the preset position. The controller also communicates with the camera module 160 to send shooting commands to the camera module 160, causing the camera module 160 to capture images of the power equipment.

[0055] It is understood that the controller includes: a wireless transceiver module, which wirelessly communicates with the camera module 160, the first motor 142, the second motor 144, and the sensor 130, respectively, for sending the shooting command to the camera module 160, the driving command to the first motor 142 and the second motor 144, and the acquisition command to the sensor 130, and for receiving the camera data and the sound field distribution cloud map data of the power equipment; and a data processing module, connected to the wireless transceiver module, for processing the camera data to determine whether the sensor 130 is located at the preset position, and for processing the sound field distribution cloud map data of the power equipment to obtain the location data of the abnormal power equipment.

[0056] Specifically, in this embodiment, the wireless transceiver module of the controller can wirelessly communicate with the camera module 160 through the camera communication module; wherein, the camera communication module includes: a camera transceiver unit, which wirelessly communicates with the wireless transceiver module and is connected to the camera module, for receiving the shooting command and sending it to the camera module 160, so that the camera module 160 can capture images of the power equipment and acquire the video data; and the camera module 160 sends the acquired video data to the camera transceiver unit, so that the camera transceiver unit can send the video data to the wireless transceiver module; and a camera power supply unit, which is connected to the camera module 160 and the camera transceiver unit respectively, for supplying power to the camera module 160 and the camera transceiver unit, so that the camera module 160 and the corresponding units can work normally, but the present invention is not limited thereto.

[0057] Specifically, in this embodiment, the driving command includes a first driving command and a second driving command, wherein the first driving command is used to drive the output shaft of the first motor 142 to rotate, and the second driving command is used to drive the output shaft of the second motor 144 to rotate. More specifically, the wireless transceiver module of the controller can wirelessly communicate with the first motor 142 through the first motor communication module; wherein, the first motor communication module includes: a first motor transceiver unit, which wirelessly communicates with the wireless transceiver module and is used to receive the first drive command; a first motor control unit, which is connected to the first motor transceiver unit and the first motor 142 respectively, and is used to control the first motor 142 to start according to the first drive command, so that the output shaft of the first motor 142 rotates; a first motor positioning unit, which is connected to the first motor 142 and the first motor transceiver unit respectively, and is used to obtain the positioning coordinates of the first motor 142 and send them to the first motor transceiver unit, so that the first motor transceiver unit sends the positioning coordinates of the first motor 142 to the wireless transceiver module; and a first motor power supply unit, which is electrically connected to the first motor 142, the first motor transceiver unit, the first motor control unit and the first motor positioning unit respectively, and is used to supply power to the first motor 142, the first motor transceiver unit, the first motor control unit and the first motor positioning unit, so that the first motor 142 and the corresponding units work normally.

[0058] Similarly, the wireless transceiver module of the controller can wirelessly communicate with the second motor 144 through the second motor communication module; wherein, the second motor communication module includes: a second motor transceiver unit, which wirelessly communicates with the wireless transceiver module and is used to receive the second drive command; a second motor control unit, which is connected to the second motor transceiver unit and the second motor 144 respectively, and is used to control the second motor 144 to start according to the second drive command, so that the output shaft of the second motor 144 rotates; a second motor positioning unit, which is connected to the second motor 144 and the second motor transceiver unit respectively, and is used to obtain the positioning coordinates of the second motor 144 and send them to the second motor transceiver unit, so that the second motor transceiver unit sends the positioning coordinates of the second motor 144 to the wireless transceiver module; and a second motor power supply unit, which is electrically connected to the second motor 144, the second motor transceiver unit, the second motor control unit and the second motor positioning unit respectively, and is used to supply power to the second motor 144, the second motor transceiver unit, the second motor control unit and the second motor positioning unit, so that the second motor 144 and the corresponding units work normally, but the present invention is not limited thereto.

[0059] Specifically, in this embodiment, the wireless transceiver module of the controller can wirelessly communicate with the sensor 130 through the sensor communication module; wherein, the sensor communication module includes: a sensor transceiver unit, which wirelessly communicates with the wireless transceiver module to receive the acquisition command; a sensor control unit, which is connected to both the sensor transceiver unit and the sensor 130, and controls the sensor 130 to turn on according to the acquisition command so that the sensor 130 can acquire the sound field distribution cloud map data of the power equipment; a sensor positioning unit, which is connected to both the sensor 130 and the sensor transceiver unit, and obtains the positioning coordinates of the sensor 130 and sends them to the sensor transceiver unit so that the sensor transceiver unit sends the positioning coordinates of the sensor 130 to the wireless transceiver module; and a sensor power supply unit, which is electrically connected to the sensor 130, the sensor transceiver unit, the sensor control unit, and the sensor positioning unit, and supplies power to the sensor 130, the sensor transceiver unit, the sensor control unit, and the sensor positioning unit so that the sensor 130 and its corresponding units can operate normally. Furthermore, the sensor 130 is also connected to the sensor transceiver unit to send the collected sound field distribution cloud map data of the power equipment to the sensor transceiver unit, so that the sensor transceiver unit sends the sound field distribution cloud map data of the power equipment to the wireless transceiver module, but the present invention is not limited thereto.

[0060] Specifically, in this embodiment, after receiving the camera data forwarded by the wireless transceiver module, the data processing module performs preprocessing on the camera data, including deinterlacing, upsampling / downsampling, and noise reduction, and sends the preprocessed camera data to the display module for display, allowing staff to view the preprocessed camera data and determine whether the sensor 130 is located at the preset position. After receiving the sound field distribution cloud map data of the power equipment forwarded by the wireless transceiver module, the data processing module can process the sound field distribution cloud map data of the power equipment using a preset processing method to obtain the location data (i.e., location coordinates) of the abnormal power equipment; and the preset processing method is:

[0061] Assume the position coordinates P0(x0,y0,z0) of any one sensor are at the origin (0,0,0), and the position coordinates of the other sensors are P i (x i ,y i ,z i Let i = 1, 2, ..., n, and point P(x, y, z) be the coordinates of the abnormal power equipment. The propagation speed of the information source in the medium is c, and R is the position of the abnormal power equipment. i This indicates abnormal power equipment P to each sensor P0, Pi The distance, t oi Let R be the time difference from the abnormal power device H to the i-th sensor and to the 0-th sensor, respectively. oi =ct oi =R i -R o Therefore, n-1 positioning equations can be established:

[0062] R 0i =ct 0i =R i -R0(i=1,2,3…,n) (1)

[0063] In the formula:

[0064]

[0065]

[0066] Simplifying the above equations, we obtain the following system of linear equations:

[0067]

[0068] In the formula:

[0069]

[0070] make:

[0071]

[0072] The equation above can then be simplified to:

[0073] AX = b (7)

[0074] Solving the above system of equations yields the location coordinates of the abnormal power equipment: P(x,y,z).

[0075] In addition, the controller further includes: an instruction input module, connected to the wireless transceiver module, for inputting the shooting instruction, the first drive instruction, the second drive instruction, the acquisition instruction, and the stop instruction, etc.; wherein, the stop instruction causes the camera module and the sensor to shut down and causes the output shafts of the first motor and the second motor to stop rotating. The controller further includes: a data storage unit, connected to the wireless transceiver module, for storing the positioning coordinates of the first motor and the positioning coordinates of the second motor, etc., but the present invention is not limited thereto.

[0076] Based on the same inventive concept, this embodiment also provides a method for using the power equipment detection device based on acoustic images as described above, including: step S1, determining whether the sensor is located at the preset position; step S2, if the sensor is not at the preset position, causing the controller to send the driving command to the driving device, so that the driving device adjusts the sensor to the preset position; step S3, if the sensor is located at the preset position, causing the controller to send the acquisition command to the sensor, so that the sensor acquires the sound field distribution cloud map data of the power equipment at the preset position; and step S4, causing the controller to process the sound field distribution cloud map data of the power equipment to obtain the location data of the abnormal power equipment.

[0077] It is understood that step S1 includes: sending a shooting command to the camera module; the camera module taking a video of the power equipment according to the shooting command to obtain video data; and determining whether the sensor is located at the preset position based on the video data.

[0078] Specifically, in this embodiment, before collecting the sound field distribution cloud map data of the power equipment using a sensor array composed of several sensors 130, the position of each sensor 130 needs to be adjusted or debugged to ensure that the distance between each sensor 130 and the corresponding power equipment is appropriate, thereby ensuring high accuracy of the collected data. More specifically, the shooting command is first input through the command input module of the controller. The shooting command is transmitted to the camera module 160 via the wireless transceiver module and the camera transceiver unit. After receiving the shooting command, the camera module 160 starts and takes a picture of the power equipment. The camera data acquired by the camera module 160 is transmitted to the data processing module via the camera transceiver unit and the wireless transceiver module. The data processing module preprocesses the camera data and then transmits it to the display module for display. Then, the staff can view the camera data through the display module and determine the relative position of the movable frame and the power equipment to determine whether the movable frame is in the optimal position (i.e., the position of the movable frame when the sensor is in the preset position). If the movable frame 120 is not in the optimal position, the first motor drive command can be input through the command input module. The first motor drive command is transmitted to the first motor control unit through the wireless transceiver module and the first motor transceiver unit. The first motor control unit controls the first motor 142 to start according to the first motor drive command, driving the output shaft of the first motor 142 to rotate, so as to drive the gear 143 to walk on the rack 141, thereby driving the movable frame 120 to move back and forth in the horizontal direction along the fixed frame 110, and thus adjusting the movable frame 120 to the optimal position. Subsequently, the camera module 160 acquires the camera data again, and the operator determines again whether the movable frame is in the optimal position. If the movable frame 120 is in the optimal position, the operator can input the stop command through the command input module. The stop command is transmitted to the first motor control unit via the wireless transceiver module and the first motor transceiver unit. The first motor control unit controls the output shaft of the first motor 142 to stop rotating according to the stop command, so as to fix the movable frame 120 in the optimal position. At this time, the first motor positioning unit transmits the positioning coordinates of the first motor 142 to the data storage module of the controller through the first motor transceiver unit and the wireless transceiver module, but the present invention is not limited thereto.

[0079] Specifically, in this embodiment, after the movable frame 120 is fixed in the optimal position, the camera module 160 continues to acquire the camera data, and the staff checks the camera data and determines the relative position of the sensor 130 and the power equipment to determine whether the sensor 130 is located in the preset position (i.e., the optimal detection position of the power equipment). If the sensor 130 is not in the preset position, the second motor drive command can be input through the command input module. The second motor drive command is transmitted to the second motor control unit through the wireless transceiver module and the second motor transceiver unit. The second motor control unit controls the second motor 144 to start according to the second motor drive command, driving the output shaft of the second motor 144 to rotate, thereby driving the threaded rod 122 to rotate synchronously, thereby driving the slider 123 and the sensor 130 to move back and forth in the vertical direction along the threaded rod 122, and thus adjusting the sensor 130 to the preset position. Subsequently, the camera module 160 acquires the camera data again, and the operator determines again whether the sensor 130 is located at the preset position. If the sensor 130 is at the preset position, a stop command can be input through the command input module. The stop command is transmitted to the second motor control unit via the wireless transceiver module and the second motor transceiver unit. The second motor control unit controls the output shaft of the second motor 144 to stop rotating according to the stop command, so as to fix the sensor 130 at the preset position. At this time, the second motor positioning unit transmits the positioning coordinates of the second motor 142 to the data storage module through the second motor transceiver unit and the wireless transceiver module, but the present invention is not limited thereto.

[0080] Specifically, in this embodiment, after the sensor 130 is fixed at the preset position, the acquisition command is input through the command input module. The acquisition command is transmitted to the sensor control unit via the wireless transceiver module and the sensor transceiver unit. The sensor control unit controls the sensor 130 to start according to the acquisition command and acquires the sound field distribution cloud map data of the power equipment. The sound field distribution cloud map data of the power equipment acquired by the sensor 130 is transmitted to the data processing module via the sensor transceiver unit and the wireless transceiver module. The data processing module processes the sound field distribution cloud map data of the power equipment to obtain the location coordinates of the abnormal power equipment. More specifically, following the above method, multiple sensors located at different positions collect sound field distribution cloud map data from the abnormal power equipment multiple times, and determine the similarities and differences in the location coordinates of the abnormal power equipment obtained multiple times. If the location coordinates of the abnormal power equipment obtained multiple times are the same, a reminder voice is issued through the voice transceiver module of the controller, and the reminder voice is remotely transmitted to the maintenance terminal through the wireless transceiver module to remind the staff to perform maintenance or inspection. If the staff finds that the location coordinates of the actual abnormal point are the same as the location coordinates of the abnormal power equipment determined based on the collected data during maintenance or inspection, the staff can randomly select the positioning coordinates of the first motor, the second motor, and the sensor transmitted during multiple collection processes and save them in the data storage module. If the location coordinates of the abnormal power equipment obtained multiple times are different, the staff determines which location coordinate is the most accurate during maintenance or inspection, and the maintenance personnel save the positioning coordinates of the first motor, the second motor, and the sensor transmitted during that collection process in the data storage module. Preferably, the maintenance terminal includes a maintenance transceiver unit connected to the wireless transceiver module and a maintenance voice transceiver unit connected to the maintenance transceiver unit. The maintenance transceiver unit is used to receive the reminder voice sent by the wireless transceiver module and send it to the maintenance voice transceiver unit. The maintenance voice transceiver unit is used to send the reminder voice. However, the present invention is not limited thereto.

[0081] Furthermore, in this embodiment, the controller also includes a position adjustment module, which is connected to the data storage module and the wireless transceiver module respectively. When the sound field distribution cloud map data of the power equipment is subsequently collected by a sensor array composed of a plurality of sensors 130, the position adjustment module can send the positioning coordinates of the first motor and the positioning coordinates of the second motor corresponding to each sensor when it is located at the preset position, which are stored in the data storage module, to the wireless transceiver module, thereby sending them to the corresponding first motor and second motor, and thus quickly adjusting each sensor to the preset position, improving the detection efficiency and detection accuracy of the power equipment. However, the present invention is not limited thereto.

[0082] In summary, this embodiment provides a power equipment detection device and its usage method based on acoustic images. The mounting components include a base and a movable frame that reciprocates horizontally along the base. A sensor is mounted on the movable frame and reciprocates vertically along the frame. The controller can send drive commands to a drive device connected to the base, movable frame, and sensor, causing the drive device to adjust the sensor to a preset position. The controller can also send acquisition commands to the sensor, causing the sensor to acquire sound field distribution cloud map data of the power equipment at the preset position. Based on the sound field distribution cloud map data of the power equipment, the location data of abnormal power equipment can be obtained, thereby completing the status detection of the power equipment. In this embodiment, the position of the sensor is adjustable. By adjusting the position of the sensor to the optimal detection position of the power equipment through the drive device, the detection accuracy of the power equipment can be improved. This avoids the problems of poor detection accuracy caused by long-distance detection in the prior art, such as time delay estimation errors and large source propagation speed errors.

[0083] Although the present invention has been described in detail through the preferred embodiments above, it should be understood that the above description should not be considered as a limitation of the present invention. Various modifications and substitutions to the present invention will be apparent to those skilled in the art after reading the above description. Therefore, the scope of protection of the present invention should be defined by the appended claims.

Claims

1. An acoustic image-based electric power equipment detection apparatus characterized by comprising: The utility model relates to a kind of installation components (10), including: pedestal (110) is located power equipment side, is arranged on a bearing surface;Movable frame (120) is arranged on the pedestal (110), and reciprocatingly moves along the pedestal (110) in horizontal direction;Sensor (130) is arranged on the movable frame (120), and reciprocatingly moves along the movable frame (120) in vertical direction, for collecting the sound field distribution nephogram data of the power equipment;Drive device is connected with the pedestal (110), the movable frame (120) and the sensor (130) respectively, for driving the movable frame (120) reciprocatingly moves along the pedestal (110) in horizontal direction and driving the sensor (130) reciprocatingly moves along the movable frame (120) in vertical direction, to adjust the position of the sensor (130);And controller is communicated with the sensor (130) and the drive device respectively, for sending drive instruction to the drive device, to make the drive device adjust the sensor (130) to preset position;And for sending acquisition instruction to the sensor (130), to make the sensor (130) collect the sound field distribution nephogram data of the power equipment in the preset position;And for processing the sound field distribution nephogram data of the power equipment, to obtain the position data of abnormal power equipment. The side wall of the pedestal (110) is provided with a transverse groove (111) extending in horizontal direction, the transverse groove (111) is provided with a guide rod (112), and the extension direction of the guide rod (112) is the same as the extension direction of the transverse groove (111). The end of the movable frame (120) close to the bearing surface is sleeved on the guide rod (112), and the movable frame (120) reciprocatingly moves along the guide rod (112) in horizontal direction. The end surface of the pedestal (110) away from the bearing surface and the movable frame (120) are provided with a containing space (150), the drive device includes: The rack (141) is fixed on the end surface of the pedestal (110) away from the bearing surface, and the extension direction of the rack (141) is the same as the extension direction of the guide rod (112); The first motor (142) is fixed on the side wall of the movable frame (120), the output shaft of the first motor (142) penetrates the side wall of the movable frame (120) and extends into the containing space (150), and the output shaft of the first motor (142) is rotationally connected with the side wall of the movable frame (120);And The gear (143) is located in the containing space (150), the inner ring of the gear (143) is fixedly connected with the output shaft of the first motor (142), the outer ring of the gear (143) is meshingly connected with the rack (141), and the output shaft of the first motor (142) rotationally drives the gear (143) to walk along the rack (141), to drive the movable frame (120) reciprocatingly move along the guide rod (112) in horizontal direction. ​ ​ ​ ​ 2.The acoustic image-based power equipment detection apparatus of claim 1, wherein a vertical groove (121) extending in a vertical direction is arranged on a side wall of the movable frame (120), and a threaded rod (122) is arranged in the vertical groove (121); the threaded rod (122) extends in the same direction as the vertical groove (121), and a sliding block (123) for carrying the sensor (130) is arranged on the threaded rod (122); the sliding block (123) is connected to the threaded rod (122) through threads, and rotation of the threaded rod (122) drives the sliding block (123) and the sensor (130) to reciprocate in the vertical direction along the threaded rod (122).

3. The acoustic image-based power equipment detection apparatus according to claim 2, wherein The driving device comprises a second motor (144) fixed to the side wall of the movable frame (120); an output shaft of the second motor (144) is fixedly connected to the threaded rod (122), and rotation of the output shaft of the second motor (144) drives the threaded rod (122) to rotate synchronously, so as to drive the sliding block (123) and the sensor (130) to reciprocate in the vertical direction along the threaded rod (122).

4. The acoustic image-based power equipment detection apparatus according to claim 3, wherein Further comprising: a camera module (160) arranged on the movable frame (120) and configured to take pictures of the power equipment and acquire camera data, so as to determine whether the sensor (130) is located at the preset position.

5. The acoustic image-based power equipment detection apparatus according to claim 4, wherein The controller is further in communication with the camera module (160) and configured to send a shooting instruction to the camera module (160) to enable the camera module (160) to take pictures of the power equipment.

6. The acoustic image-based power equipment detection apparatus according to claim 5, wherein The controller comprises: a wireless transceiver module in wireless communication with the camera module (160), the first motor (142), the second motor (144), and the sensor (130), and configured to send the shooting instruction to the camera module (160), send the driving instruction to the first motor (142) and the second motor (144), and send the collection instruction to the sensor (130), and receive the camera data and the sound field distribution cloud map data of the power equipment; a data processing module connected to the wireless transceiver module and configured to process the camera data to determine whether the sensor (130) is located at the preset position, and process the sound field distribution cloud map data of the power equipment to obtain position data of an abnormal power equipment.

7. A method of using the power equipment detection apparatus based on an acoustic image according to any one of claims 1 to 6, characterized by, comprising: determining whether the sensor is located at the preset position; when the sensor is not located at the preset position, sending the driving instruction to the driving device by the controller to enable the driving device to adjust the sensor to the preset position; when the sensor is located at the preset position, sending the collection instruction to the sensor by the controller to enable the sensor to collect the sound field distribution cloud map data of the power equipment at the preset position; and ​ The controller is caused to process sound field distribution cloud map data of the power equipment to obtain position data of an abnormal power equipment.

8. The method of using an acoustic image-based power equipment detection apparatus as defined in claim 7, wherein, The step of judging whether the sensor is located at the preset position comprises: The controller is caused to send a shooting instruction to a camera module; The camera module shoots the power equipment according to the shooting instruction to obtain camera data; and According to the camera data, it is judged whether the sensor is located at the preset position.

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