Equipment fault noise positioning system device

Abstract

The utility model provides an equipment fault noise positioning system device, and belongs to the technical field of equipment fault monitoring. The device is simple in structure, easy to operate, good in data acquisition interference filtering effect and high in data acquisition accuracy. A motor of the device is fixedly installed in a case assembly, a sound collection assembly is rotatably installed at the upper end of the case assembly, the sound collection assembly is in transmission connection with the driving end of the motor through a magnetic transmission assembly, and a data processing module is fixedly installed in the case assembly. The sound acquisition assembly is in data transmission connection with the data processing module through a data line. The device is provided with a plurality of sound collection assemblies, data collection is sufficient, data comparison is facilitated, the interference sound filtering effect of the device is good, the data collection precision is high, and accurate positioning of an abnormal operation device is facilitated.

Description

Technical Field

[0001] This utility model belongs to the field of equipment fault monitoring technology, and in particular relates to an equipment fault noise location system device. Background Technology

[0002] With the widespread adoption of smart devices and the increasing number of devices in large work areas, the need for fault location is urgent. Faults in electrical equipment, such as transformers, can easily cause system outages, necessitating efficient monitoring methods. Acoustic technology, with its advantages of non-contact operation, rapid response, and applicability to complex environments (such as high-temperature and highly corrosive environments), has become an important development direction.

[0003] The current problems with acoustic monitoring technology include:

[0004] Severe environmental noise interference: Background noise in complex industrial environments can seriously interfere with acoustic signals and affect positioning accuracy.

[0005] The positioning accuracy is insufficient. Traditional methods require on-site personnel to participate. At the same time, this method relies on local monitoring and a single signal, which results in positioning errors (such as the low accuracy of traditional beamforming algorithms).

[0006] The feature extraction is not intelligent enough, the feature library of fault sound signals is incomplete, and the adaptive feature extraction algorithm still needs to be optimized.

[0007] Multi-sensor coordination is difficult. Sensor noise and error propagation may affect system stability. Multi-sensor coordination is required to reduce errors, but multi-sensor deployment is complex and coordination is difficult.

[0008] The system has limited adaptability to complex scenarios, and the real-time monitoring capabilities of some systems for moving targets or extreme environments still need to be improved. Utility Model Content

[0009] To address the problems existing in the background technology, this utility model provides a device for locating equipment fault noise. This device has a simple structure, is easy to operate, has a good effect on filtering out data acquisition interference, and has high data acquisition accuracy.

[0010] The technical solution adopted by this utility model to solve its technical problem is: a device for locating equipment fault noise, including a chassis assembly, a sound acquisition assembly, a magnetic transmission assembly, a data processing module and a motor. The motor is fixedly installed inside the chassis assembly. The sound acquisition assembly is rotatably installed on the upper end of the chassis assembly. The sound acquisition assembly is connected to the drive end of the motor through the magnetic transmission assembly. The data processing module is fixedly installed inside the chassis assembly. The sound acquisition assembly is connected to the data processing module for data transmission through a data cable.

[0011] The sound acquisition component includes a connecting pipe, a sound collector cover, a directional probe, and noise-reducing foam. The sound collector cover is horn-shaped with its axis arranged horizontally. The connecting pipe is a right-angle bend, with its upper end arranged horizontally and fixedly connected to the small end of the sound collector cover. The lower end of the connecting pipe is arranged vertically and fixedly connected to the magnetic drive component. The directional probe is coaxially fixedly arranged inside the sound collector cover. The noise-reducing foam is fixedly placed on the large end of the sound collector cover.

[0012] The sound acquisition component also includes multiple directional reflective cones, which are fully and fixedly arranged on the inner wall of the sound collecting cover. The multiple directional reflective cones are arranged in layers from the large end to the small end of the sound collecting cover. Each layer of directional reflective cones is evenly distributed around the axis of the sound collecting cover, and each adjacent layer of directional reflective cones is staggered with each other.

[0013] Each of the directional reflective cones includes a rigid metal plate and a soft sponge. Each rigid metal plate is perpendicular to the inner wall of the sound collector and is fixedly connected to the inner wall of the sound collector. Each soft sponge is aligned and fixedly arranged on the surface of each rigid metal plate facing the large opening end of the sound collector.

[0014] The directional probe includes a pointing needle and multiple sensors. Multiple mounting holes are equally spaced along the axial direction on the outer wall of the pointing needle. The multiple sensors are fixedly installed in each mounting hole, and each sensor is connected to the data processing module for data transmission.

[0015] The chassis assembly includes a housing and sound-insulating foam. The housing is a metal shell, and the sound-insulating foam is filled inside the housing. The sound-insulating foam is interspersed in the gaps between the data processing module, the motor, and the housing.

[0016] The magnetic drive assembly includes a bushing and a magnetic shaft. The bushing is fixedly installed on the housing, and the magnetic shaft is coaxially inserted in the bushing. The lower end of the magnetic shaft is fixedly connected to the drive end of the motor, and the upper end of the magnetic shaft is fixedly connected to the connecting pipe.

[0017] The beneficial effects of this utility model are as follows: The device is equipped with multiple sound acquisition components to collect data from environmental sound sources, resulting in sufficient data collection and facilitating data comparison; the overall structure of the device is simple and ingenious, facilitating production, processing, and installation, and has a low failure rate, making maintenance and component replacement easy; the device is equipped with sound-insulating foam, noise-reducing foam, and soft foam to effectively avoid the influence of interfering sound sources on the collected data, resulting in good data acquisition effect, high data accuracy, and high positioning accuracy, facilitating accurate location of abnormal equipment and timely inspection and maintenance of the equipment. Attached Figure Description

[0018] In the attached diagram:

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the chassis assembly of this utility model;

[0021] Figure 3 This is a schematic diagram of the sound acquisition component structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the directional reflective cone structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the directional probe structure of this utility model;

[0024] In the diagram: 1. Chassis assembly; 2. Sound acquisition assembly; 3. Magnetic drive assembly; 4. Data processing module; 5. Motor; 11. Housing; 12. Sound insulation foam; 21. Connecting pipe; 22. Sound collector cover; 23. Direction probe; 24. Noise reduction foam; 25. Directional reflector cone; 231. Pointer; 232. Sensor; 251. Rigid metal plate; 252. Soft foam; 41. Wiring harness sleeve. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0026] A device for locating equipment fault noise includes a chassis assembly 1, a sound acquisition component 2, a magnetic drive component 3, a data processing module 4, and a motor 5. The motor 5 is fixedly installed inside the chassis assembly 1. The sound acquisition component 2 is rotatably installed on the upper end of the chassis assembly 1. The sound acquisition component 2 is connected to the drive end of the motor 5 via the magnetic drive component 3. The motor 5 drives the sound acquisition component 2 to rotate around a vertical rotation axis. The data processing module 4 is fixedly installed inside the chassis assembly 1. The sound acquisition component 2 is connected to the data processing module 4 for data transmission via a data cable. The data cable is protected by a wire harness sleeve 41. The sound acquisition component 2 collects ambient sound as it rotates, and the collected sound data is transmitted to the data processing module 4 for identification and processing via the data cable.

[0027] The number of motors 5 and sound acquisition components 2 is set equally, and the specific number is selected according to the working conditions of the specific implementation location. If there are many devices in the environment and the environment is complex, the number of sound acquisition components 2 is increased. If there are few devices in the environment and the environment is not complex, the number of sound acquisition components 2 is reduced. The data processing module 4 is a mature existing technology in the field of sound measurement and control. The hardware is selected according to the actual monitoring needs, and the software program is programmed accordingly according to the specific monitoring needs.

[0028] The sound acquisition component 2 includes a connecting pipe 21, a sound collector 22, a directional probe 23, and a noise-reducing sponge 24. The sound collector 22 is horn-shaped, with its axis arranged horizontally. The connecting pipe 21 is a right-angle bend, with its upper end arranged horizontally and fixedly connected to the small end of the sound collector 22. The lower end of the connecting pipe 21 is arranged vertically and fixedly connected to the magnetic drive component 3. The directional probe 23 is coaxially fixedly arranged inside the sound collector 22. The noise-reducing sponge 24 is fixedly covered on the large end of the sound collector 22. The noise-reducing sponge 24 is preferably hemispherical. The noise-reducing sponge 24 filters out interfering audio in the environment, reducing its impact on audio acquisition. The directional reflection cone 25 reduces the reflection of audio in the sound collector 22, thereby reducing data errors.

[0029] The sound acquisition component 2 also includes multiple directional reflective cones 25, which are fully and fixedly arranged on the inner wall of the sound collecting cover 22. The multiple directional reflective cones 25 are arranged in layers from the large end to the small end of the sound collecting cover 22. Each layer of directional reflective cones 25 is evenly distributed around the axis of the sound collecting cover 22, and each adjacent two layers of directional reflective cones 25 are staggered with each other.

[0030] Each of the directional reflector cones 25 has a cross-sectional shape of a right-angled isosceles triangle, with one right-angled side of the directional reflector cone 25 perpendicular to the inner wall of the sound collector 22. Each directional reflector cone 25 includes a rigid metal plate 251 and a soft sponge 252. Each rigid metal plate 251 is perpendicular to the inner wall of the sound collector 22 and is fixedly connected to the inner wall of the sound collector 22. Each soft sponge 252 is aligned and fixedly arranged on the surface of each rigid metal plate 251 facing the large end of the sound collector 22. The soft sponge 252 is used to absorb and eliminate noise and reduce the random reflection of audio in the sound collector 22. The rigid metal plate 251 directionally reflects the audio towards the direction probe 23, thereby improving the reflection efficiency of the sound towards the direction probe 23.

[0031] The directional probe 23 includes a pointing needle 231 and multiple sensors 232. Multiple mounting holes are equally spaced along the axial direction on the outer wall of the pointing needle 231. The multiple sensors 232 are fixedly installed in each mounting hole. Each sensor 232 is connected to the data processing module 4 for data transmission. The data collected by each sensor 232 is independently stored in the data processing module 4. The data processing module 4 can independently compare the data collected by each sensor 232 with the standard sound source in the database, thereby improving the monitoring accuracy of the system.

[0032] The chassis assembly 1 includes a housing 11 and a sound-insulating sponge 12. The housing 11 is a metal shell, and the sound-insulating sponge 12 is filled inside the housing 11. The sound-insulating sponge 12 is interspersed in the gaps between the data processing module 4, the motor 5 and the housing 11. The sound-insulating sponge 12 blocks the vibration noise generated by the operation of the motor 5.

[0033] The magnetic transmission assembly 3 includes a bushing and a magnetic shaft. The bushing is fixedly installed on the housing 11, and the magnetic shaft is coaxially inserted in the bushing. The lower end of the magnetic shaft is fixedly connected to the drive end of the motor 5, and the upper end of the magnetic shaft is fixedly connected to the connecting pipe 21. The magnetic shaft and the bushing are rotatably connected by magnetic support. There is no friction between the magnetic shaft and the bushing when the magnetic shaft rotates, and no interference noise is generated.

[0034] Working principle: When the device is in operation, the motor 5 is started to run. The drive end of the motor 5 drives the sound acquisition component 2 to rotate at a low speed through the magnetic transmission component 3 (the speed is sufficient for the sensor 232 to collect sound source data and determine the direction). The sound acquisition component 2 rotates to collect the operating sound of the equipment deployed in the surrounding environment. During the rotation of the sound acquisition component 2, the sensor 232 installed on the direction probe 23 collects the sound data and records the sound source acquisition direction. The data collected by the sound acquisition component 2 is transmitted to the data processing component 4 through the data cable for storage and comparison. When the data matching degree is less than 80%, it is considered that there is an abnormal sound source in the current environment. The data processing module 4 then extracts the feature data and compares it with the feature data of different azimuth angles. The azimuth angle with the largest feature value is selected. When both sound acquisition devices 2 obtain the azimuth angle with the largest feature value, the motor 5 stops rotating and transmits the current direction to the background video monitoring system for locating the specific location of the abnormal sound source.

[0035] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A device for locating equipment fault noise, characterized in that: The device includes a chassis assembly (1), a sound acquisition assembly (2), a magnetic drive assembly (3), a data processing module (4), and a motor (5). The motor (5) is fixedly installed inside the chassis assembly (1). The sound acquisition assembly (2) is rotatably installed on the upper end of the chassis assembly (1). The sound acquisition assembly (2) is connected to the drive end of the motor (5) through the magnetic drive assembly (3). The data processing module (4) is fixedly installed inside the chassis assembly (1). The sound acquisition assembly (2) is connected to the data processing module (4) for data transmission through a data cable.

2. The equipment fault noise location system device according to claim 1, characterized in that: The sound acquisition component (2) includes a connecting pipe (21), a sound collector (22), a direction probe (23), and a noise reduction sponge (24). The sound collector (22) is horn-shaped, and the axis of the sound collector (22) is arranged in the horizontal direction. The connecting pipe (21) is a right-angle bend. The upper end of the connecting pipe (21) is arranged in the horizontal direction and fixedly connected to the small end of the sound collector (22). The lower end of the connecting pipe (21) is arranged in the vertical direction and fixedly connected to the magnetic drive component (3). The direction probe (23) is coaxially fixedly arranged inside the sound collector (22). The noise reduction sponge (24) is fixedly covered on the port of the large end of the sound collector (22).

3. The equipment fault noise location system device according to claim 2, characterized in that: The sound acquisition component (2) also includes multiple directional reflective cones (25). The multiple directional reflective cones (25) are fully and fixedly arranged on the inner wall of the sound collecting cover (22). The multiple directional reflective cones (25) are arranged in layers from the large end to the small end of the sound collecting cover (22). Each layer of directional reflective cones (25) is evenly distributed around the axis of the sound collecting cover (22), and each adjacent two layers of directional reflective cones (25) are staggered with each other.

4. The equipment fault noise location system device according to claim 3, characterized in that: Each of the directional reflective cones (25) includes a rigid metal plate (251) and a soft sponge (252). Each rigid metal plate (251) is perpendicular to the inner wall of the sound collector (22) and is fixedly connected to the inner wall of the sound collector (22). Each soft sponge (252) is aligned and fixedly arranged on the surface of each rigid metal plate (251) facing the large end of the sound collector (22).

5. A device for locating equipment fault noise according to claim 2 or 4, characterized in that: The direction probe (23) includes a pointing needle (231) and multiple sensors (232). Multiple mounting holes are equally spaced along the axial direction on the outer wall of the pointing needle (231). Multiple sensors (232) are fixedly installed in each mounting hole. Each sensor (232) is connected to the data processing module (4) for data transmission.

6. The equipment fault noise location system device according to claim 5, characterized in that: The chassis assembly (1) includes a housing (11) and a sound insulation sponge (12). The housing (11) is a metal shell. The sound insulation sponge (12) is filled inside the housing (11) and is interspersed in the gaps between the data processing module (4), the motor (5) and the housing (11).

7. The equipment fault noise location system device according to claim 6, characterized in that: The magnetic drive assembly (3) includes a bushing and a magnetic shaft. The bushing is fixedly installed on the housing (11), and the magnetic shaft is coaxially inserted in the bushing. The lower end of the magnetic shaft is fixedly connected to the drive end of the motor (5), and the upper end of the magnetic shaft is fixedly connected to the connecting pipe (21).

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