Sound monitoring equipment and system applied to electrical equipment

Abstract

The invention provides sound monitoring equipment and a sound monitoring system, which are applied to the technical field of electrical automation, the equipment comprises a monitoring module and at least one group of sound acquisition components used for acquiring initial audio data of electrical equipment, and the monitoring module comprises a main control module, a communication module and at least one audio processing module. The audio processing module converts initial audio data collected by the sound collection assembly into target audio data matched with the main control module, the communication module sends the target audio data to the main control module, and finally the main control module monitors the operation state of the electrical equipment based on the target audio data. According to the equipment, the characteristic that sound generated in the operation process of the electrical equipment is directly related to the operation state of the equipment is utilized, the operation state of the electrical equipment is monitored through the obtained audio data, and the safety of the electrical equipment in the operation process is improved.

Description

Technical Field

[0001] The present application relates to the field of electrical automation technology, and in particular to a sound monitoring device and system applied to electrical equipment. Background Art

[0002] Electrical equipment usually makes certain noises during actual operation, especially for electrical equipment such as transformers used in power supply networks. Under the action of alternating electric and magnetic fields, the noise during operation is more obvious. In addition, there is a clear difference between the sounds produced by the normal operation and fault operation of electrical equipment.

[0003] Therefore, how to monitor the operating status of electrical equipment through the sound generated during the operation of electrical equipment and improve the safety of equipment operation has become one of the technical problems that technical personnel in this field need to solve urgently. Summary of the invention

[0004] In view of this, the present application is dedicated to providing a sound monitoring device and system for electrical equipment, so as to monitor the operating status of the electrical equipment through the sound generated during the operation of the electrical equipment, thereby improving the safety of the equipment operation.

[0005] In a first aspect, the present application provides a sound monitoring device for electrical equipment, comprising: a monitoring module and at least one set of sound collection components, wherein:

[0006] The sound collection component is used to collect initial audio data during the operation of the electrical equipment;

[0007] The monitoring module includes a main control module, a communication module and at least one audio processing module, wherein:

[0008] Each of the audio processing modules is connected to a group of the sound collection components to convert the initial audio data into target audio data that matches the main control module;

[0009] The communication module is connected between the audio processing module and the main control module, and sends the target audio data to the main control module;

[0010] The main control module monitors the operating status of the electrical device based on the target audio data.

[0011] In an optional embodiment, the sound monitoring device includes at least two audio processing modules;

[0012] The communication module includes a switch and an edge computing module, wherein:

[0013] The switch is respectively connected to each of the audio processing modules, the edge computing module and the main control module;

[0014] The switch outputs the target audio data provided by each of the audio processing modules to the edge computing module respectively;

[0015] The edge computing module adds a corresponding preset identifier to the target audio data belonging to the same audio processing module, and sends the target audio data with the preset identifier added to the main control module through the switch.

[0016] In an optional implementation, the sound monitoring device includes an audio processing module, and the communication module includes a switch.

[0017] In an optional implementation, the monitoring module further includes: a power supply module, wherein:

[0018] The input end of the power supply module is used to connect to a power source, and the output end of the power supply module is respectively connected to the main control module, the communication module and each of the audio processing modules.

[0019] In an optional embodiment, the sound collection component includes at least one first sound collector and at least two second sound collectors, wherein:

[0020] The first sound collector is arranged in contact with the electrical equipment;

[0021] The second sound collector is spaced a preset distance from the electrical device.

[0022] In an optional embodiment, the electrical equipment includes an oil-immersed transformer provided with an oil pillow;

[0023] The sound collection component includes a first sound collector and two second sound collectors;

[0024] The first sound collector is arranged in contact with the oil conservator;

[0025] One of the second sound collectors is disposed on the primary side of the oil-immersed transformer, and another of the second sound collectors is disposed on the secondary side of the oil-immersed transformer.

[0026] In an optional implementation, the sound collecting assembly further includes a supporting component for supporting the second sound collector.

[0027] In an optional embodiment, the main control module is configured with a fault monitoring model, which takes the target audio data as input and the operating status of the electrical equipment as output, and is obtained by training a neural network model, wherein the operating status includes a normal state and a fault state.

[0028] In an optional implementation, the main control module is further configured to: update the fault monitoring model according to the target audio data, and determine the fault location of the electrical equipment according to the target audio data and a preset reference voiceprint map.

[0029] In a second aspect, the present application provides a sound monitoring system for electrical equipment, comprising: a host computer and a sound monitoring device as described in any one of the first aspects of the present application, wherein:

[0030] The host computer is in communication connection with the communication module of the sound monitoring device to obtain the operating status of the electrical device.

[0031] Based on the above content, the sound monitoring device provided by the present application can collect the initial audio data during the operation of the electrical equipment. After converting the initial audio data into target audio data that matches the main control module, the main control module monitors the operating status of the electrical equipment based on the target audio data. The present device utilizes the characteristic that the sound generated during the operation of the electrical equipment is directly related to the operating status of the equipment, and monitors the operating status of the electrical equipment through the obtained audio data, which helps to improve the safety of the electrical equipment during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0033] Figure 1 It is a structural block diagram of a sound monitoring device provided by this application.

[0034] Figure 2 It is a structural block diagram of another sound monitoring device provided by the present application.

[0035] Figure 3 This is a structural block diagram of another sound monitoring device provided by the present application.

[0036] Figure 4 It is a structural block diagram of a sound monitoring system provided by this application. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0038] As mentioned above, electrical equipment usually makes certain sounds during actual operation. Take the transformer used in the power supply network as an example. Under normal operating conditions, due to the effects of the alternating electric field and the alternating magnetic field, the transformer will produce a stable sound that matches the law of electromagnetic field changes. When the transformer fails, for example, when the transformer winding is deformed due to the surge in electromagnetic force, a sound that is significantly different from the normal operating state will be produced during the deformation process. For other electrical equipment, the sounds produced during normal operation and faulty operation are also clearly distinguished. Therefore, how to monitor the operating status of electrical equipment through the sounds produced during the operation of electrical equipment and improve the safety of equipment operation has become one of the technical problems that technicians in this field need to solve urgently.

[0039] In order to solve the above-mentioned technical problems, the present application provides a sound monitoring device, which can collect initial audio data during the operation of electrical equipment. After converting the initial audio data into target audio data matching the main control module, the main control module monitors the operating status of the electrical equipment based on the target audio data. The present device utilizes the characteristic that the sound generated during the operation of the electrical equipment is directly related to the operating status of the equipment, and monitors the operating status of the electrical equipment through the obtained audio data, which helps to improve the safety of the electrical equipment during operation.

[0040] Based on the above, see Figure 1 The sound monitoring device provided in the present application includes a monitoring module 10 and at least one set of sound collection components 20 ( Figure 1 1 group is shown in FIG.

[0041] Specifically, the sound collection component 20 collects audio data generated during the operation of the electrical device 30. For the convenience of describing the solution, the audio data collected by the sound collection component 20 is defined as initial audio data. The output end of the sound collection component 20 is connected to the monitoring module 10 to provide the initial audio data to the monitoring module 10.

[0042] In an optional embodiment, the sound collection component 20 includes at least one first sound collector and at least two second sound collectors, wherein the first sound collector is in contact with the electrical device 30 to collect the sound directly transmitted to the outside by the device body during the operation of the electrical device 30. It can be understood that, in order to ensure the safety of the monitoring process, the first sound collector should be set to meet the electrical safety requirements, and is preferably set at the insulation position of the electrical device 30 or other position where no discharge will occur. Correspondingly, the second sound collector is set at a preset distance from the electrical device 30, that is, the second sound collector is set in a non-contact manner with the electrical device 30 to collect the sound of the electrical device 30 after it is transmitted through the air. In actual applications, the selection of the aforementioned preset distance mainly depends on the voltage level of the electrical device 30, the insulation distance that meets the electrical safety requirements, and the distance requirements between the second sound collector and the sound-emitting object during the process of collecting audio data. It will not be described in detail here, and the specific value of the aforementioned preset distance is not limited in this application. Furthermore, the specific number of the first sound collector and the second sound collector can be determined according to the type of electrical equipment 30, the sound collection requirements and the specific monitoring accuracy requirements, which are not listed here one by one. Without exceeding the core idea of ​​this application, they are also within the scope of protection of this application.

[0043] Take the electrical equipment as an oil-immersed transformer equipped with an oil pillow, and the sound collection component includes a first sound collector and two second sound collectors as an example. Since the oil pillow mainly plays the role of storing insulating oil, and in the design process of the oil-immersed transformer, the oil pillow and the exposed wiring terminals on the high and low voltage sides of the oil-immersed transformer meet the requirements of safe electrical distance. Therefore, the oil pillow is a non-charged body. Based on this, in actual applications, the first sound collector can be set in contact with the oil pillow to collect the sound transmitted by the oil pillow during the actual operation of the oil-immersed transformer. For the two second sound collectors, one can be set on the primary side of the oil-immersed transformer, and the other can be set on the secondary side of the oil-immersed transformer.

[0044] In another optional embodiment, for an oil-immersed transformer without an oil pillow, the first sound collector can be arranged in contact with the oil tank body of the oil-immersed transformer or the heat dissipation fins provided on the oil tank body, and the second sound collector can be arranged in accordance with the aforementioned method, which will not be repeated here.

[0045] In another optional embodiment, for dry-type transformers, since they are usually provided with a protective shell, the first sound collector can be arranged in contact with the protective shell, or, when the electrical safety distance is met, the first sound collector can be arranged in contact with the core bottom pad. As for the second sound collector, in a preferred case, the second sound collector should be arranged inside the shell, and of course, it is also arranged on the primary and secondary sides of the dry-type transformer respectively, so that more accurate sounds can be collected at the first time. Accordingly, if the internal space of the protective shell is small, the second sound collector cannot be arranged inside the protective shell when the electrical safety distance requirements are met, and the second sound collector can also be arranged outside the protective shell.

[0046] Furthermore, considering that sound has directionality during propagation, in order to collect more accurate audio data, the sound collection assembly provided by the present application also includes a supporting component for supporting the second sound collector. In practical applications, the supporting component is set in a one-to-one correspondence with the second sound collector, and the second sound collector can be supported to a preset height by the supporting component, so as to collect clearer and more accurate sound.

[0047] In an optional embodiment, the supporting component includes a supporting base and a supporting rod with adjustable length. In actual application, one end of the supporting rod is detachably connected to the supporting base, and the other end is also detachably connected to the second sound collector. By adjusting the length of the supporting rod, the height of the second sound collector can be changed, and the relative position relationship with the electrical equipment can be adjusted, thereby collecting clearer sound.

[0048] For further information, see Figure 1 As shown, the monitoring module 10 provided in this embodiment includes a main control module 110, a communication module 120 and at least one audio processing module 130 ( Figure 1 ).

[0049] The audio processing modules 130 are arranged in a one-to-one correspondence with the audio collection components 20, that is, each audio processing module 130 is connected to a group of sound collection components 20, and the sound collection components 20 connected to each audio processing module 130 are different from each other. Figure 1 As shown, the input end of the audio processing module 130 is connected to the output end of the sound collection component 20. The sound collection component 20 converts the collected sound into initial audio data and outputs it to the audio processing module 130. After obtaining the initial audio data fed back by the corresponding sound collection component 20, the audio processing module 130 performs format conversion on the initial audio data and converts it into target audio data that can be recognized by the main control module 110, that is, matched with the main control module 110.

[0050] In actual applications, the sound collection component 20 and the audio processing module 130 are provided with matching data transmission ports, such as coaxial audio transmission ports, based on which the initial audio data can be transmitted between the sound collection component 20 and the audio processing module 130 through a coaxial audio line. Of course, the initial audio data can also be transmitted between the sound collection component 20 and the audio processing module 130 in other ways, which are not listed here one by one, and are also within the scope of protection of this application without exceeding the core idea of ​​this application.

[0051] Furthermore, the output end of the audio processing module 130 is connected to one end of the communication module 120, and the other end of the communication module 120 is connected to the main control module 110. The communication module 120 serves as an output transmission medium between the audio processing module 130 and the main control module 110, and sends the target audio data of the audio processing module 130 to the main control module 110.

[0052] The main control module 110 monitors the operating state of the electrical device 30 based on the obtained target audio data, for example, identifies whether the electrical device 30 is in a normal state or in a fault state.

[0053] In an optional embodiment, the main control module 110 is configured with a fault monitoring model, which takes the target audio data as input and the operating state of the electrical equipment as output, and is obtained by training a neural network model, wherein the operating state includes a normal state and a fault state. Further, as a preferred embodiment, in the case of a fault state, the specific fault type, fault location, probability of fault occurrence, fault level and other related information can be further identified. As for the specific training process of the fault monitoring model, it will be expanded in the subsequent content and will not be described in detail here.

[0054] In another optional embodiment, the main control module 110 is also provided with an image display device, through which the voiceprint map and the corresponding waveform map corresponding to the target audio data can be displayed. The monitoring personnel can clearly and intuitively see the aforementioned voiceprint map and waveform map through the image display device, and thus understand the actual operation status of the electrical equipment 30 at the first time.

[0055] Furthermore, in another optional embodiment, the main control module 110 is also provided with a user interaction device, through which the monitoring personnel can send control instructions to the main control module 10, thereby selecting data of different times and different types for backtracking, and further displaying the data to be viewed through the aforementioned image display device, so as to facilitate the monitoring personnel to backtrack historical data as needed, and then collect historical data to evaluate the operating status of the electrical equipment 30.

[0056] In another optional embodiment, the main control module 10 can also be connected to the communication module 110 with other external devices such as the host computer and the remote server. Of course, the main control module 10 can also be provided with a data transmission port to provide the aforementioned target audio data, voiceprint image, waveform diagram and the operating status of the electrical equipment 30 and other data to the outside world through the communication module 110 or the data transmission port. With such a configuration, the backup and upload of the monitoring data can be realized as much as possible, which is of positive significance for improving the security and sharing of the monitoring data. The backed-up monitoring data can characterize the historical operating status of the electrical equipment 30. In actual applications, the historical data can be combined with the current monitoring data to analyze the operating status, life loss and other information of the electrical equipment, which is very important for improving the operating safety of the electrical equipment.

[0057] To sum up, the sound monitoring device provided by the present application can collect the initial audio data during the operation of the electrical equipment. After converting the initial audio data into target audio data that matches the main control module, the main control module monitors the operating status of the electrical equipment based on the target audio data. The present device utilizes the characteristic that the sound generated during the operation of the electrical equipment is directly related to the operating status of the equipment, and monitors the operating status of the electrical equipment through the obtained audio data, which helps to improve the safety of the electrical equipment during operation.

[0058] Furthermore, the present application provides another sound monitoring device, Figure 1 Based on the embodiment shown, the sound monitoring device provided in this embodiment includes at least two audio processing modules (in Figure 2 In the example shown, two audio processing modules are included).

[0059] As mentioned above, the audio processing module and the sound collection component are set one by one. Figure 2 As shown, in the sound monitoring device provided in this embodiment, each audio processing module 130 is connected to a sound collection component 20. In actual application, each sound collection component 20 corresponds to an electrical device ( Figure 2 (not shown) to collect the sound of the corresponding electrical equipment.

[0060] Combination Figure 2 As shown, the communication module 120 provided in this embodiment includes an edge computing module 1201 and a switch 1202, and the switch 1202 is respectively connected to each audio processing module 130, the edge computing module 1201 and the main control module 110.

[0061] Based on the above connection relationship, after each audio processing module 130 converts the initial audio data fed back by the sound collection component 20 to which it is connected into target audio data, it sends the target audio data to the switch 1202 respectively. The switch 1202 first sends the target audio data provided by each audio processing module 130 to the edge computing module 1201.

[0062] The edge computing module 1201 adds a corresponding preset identifier to the target audio data belonging to the same audio processing module. In an optional implementation, a device code can be assigned to each audio processing module, and each audio processing module corresponds to a unique device code, that is, the audio processing module can be uniquely characterized by the device code. Based on this, the device code of the audio processing module is used as the preset identifier of the target audio data, so that a one-to-one correspondence between the target audio data and the audio processing module can be established through the preset identifier. Correspondingly, after adding the preset identifier to the target audio data, the target audio data can also be distinguished from each other by the preset identifier. The edge computing module 1201 is connected to the switch 1202. The data transmission channel based on the switch 1202 can distinguish the target audio data from different audio processing modules, and then the target audio data from the same audio processing module is added with a preset identifier corresponding to the audio processing module, so as to distinguish the target audio data provided by different audio processing modules from each other.

[0063] Furthermore, the edge computing module 1201 sends the target audio data after adding the preset identifier to the main control module 110 through the switch 1202.

[0064] The main control module 110 monitors the operating state of the corresponding electrical device based on the target audio data with the same preset identifier. When the main control module 110 is configured with a fault monitoring model, the main control module 110 can input the target audio data with the same preset identifier into the fault monitoring model to obtain the operating state of the corresponding electrical device.

[0065] To sum up, based on the previous embodiments, the sound monitoring device provided in this embodiment is provided with at least two audio processing modules, and the audio data of different electrical equipment can be distinguished through the cooperation of the edge computing module and the switch, so as to realize the monitoring of the operating status of multiple electrical equipment at the same time, thereby improving the monitoring efficiency while ensuring the monitoring effect.

[0066] It is understandable that, when the sound monitoring device includes an audio processing module, only the initial audio data collected by a sound collection component can be converted and processed. For the main control module, it is only necessary to monitor the operating status of an electrical device based on the obtained target audio data, and there is no need to distinguish the obtained target audio data. Therefore, in this case, the communication module can only set up a switch, and the data transmission between the audio processing module and the main control module can be realized through the switch, and there is no need to add the aforementioned preset identifier to the target audio data through the edge computing module. Compared with the aforementioned embodiment, although the sound monitoring device provided in this embodiment can only monitor one electrical device at a time, the overall cost is lower, and the monitoring accuracy is consistent with the sound monitoring device provided in the aforementioned embodiment.

[0067] Furthermore, the present application also provides another sound monitoring device, see Figure 3 As shown, based on any of the above embodiments (based on Figure 1 The embodiment shown is shown as a basis), in the sound monitoring device provided in this embodiment, the monitoring module 10 also includes a power supply module 140.

[0068] like Figure 3 As shown, the input end of the power supply module 140 is used to connect to the power supply, and the output end is respectively connected to the main control module 110, the communication module 120 and the audio processing module 130. The power supply module 140 converts the voltage provided by the power supply into an operating voltage that matches the main control module 110, the communication module 120 and the audio processing module 130, thereby providing the main control module 110, the communication module 120 and the audio processing module 130 with the electrical energy required for work.

[0069] In an optional embodiment, the power supply module 140 is used to convert alternating current into direct current. For example, the input end of the power supply module 140 is connected to an AC220V power supply. The power supply module 140 converts AC / DC (i.e., rectifies) the power supply module 140 and provides a DC12V voltage to the main control module 110, the communication module 120 and the audio processing module 130 through the output end.

[0070] In another optional embodiment, the power supply module 140 is used to realize DC conversion. For example, the input end of the power supply module 140 is connected to a DC24V power supply. The power supply module 140 performs voltage reduction processing and provides a DC12V voltage to the main control module 110, the communication module 120 and the audio processing module 130 through the output end.

[0071] Of course, in actual applications, the input voltage and output voltage of the power supply module can also be other voltage values, which are not listed here one by one. This application does not limit the specific values ​​of the input voltage and output voltage of the power supply module and the specific implementation of voltage conversion by the power supply module, so as to meet the normal operation of the sound monitoring equipment.

[0072] As mentioned above, a fault monitoring model can be configured in the main control module provided in any of the above embodiments, and the operating status of the electrical equipment can be monitored by the fault monitoring model, and the fault monitoring model provided in this application is obtained by training a neural network model.

[0073] In the present application, the neural network model is trained using the audio data generated by the electrical equipment during its actual operation as training data. Specifically, the audio data generated by the electrical equipment during its operation is collected as sample audio data according to a certain sampling period. As mentioned above, the audio data generated by electrical equipment such as transformers and circuit breakers during operation has unique identification features. The operating status of the electrical equipment can be identified through the audio data. The audio data generated by the electrical equipment during normal operation and when defects or failures occur are completely different. Therefore, the sample audio data used in the process of training the fault monitoring model should include sample audio data when the electrical equipment is in a normal state and sample audio data when the electrical equipment is in a fault state.

[0074] It is known from the related technology of neural network model training that after collecting the sample audio data, it is also necessary to add labels to the sample audio data. In one possible implementation, a first label and a second label can be set, wherein the first label is used to characterize that the electrical equipment is in a normal state, and the second label is used to characterize that the electrical equipment is in a faulty state. In another possible implementation, more types of labels can be added to further distinguish different types of faults, such as short circuit faults, overvoltage faults, and overtemperature faults, etc., which are not listed here one by one. The specific faults that may occur in the actual operation of the electrical equipment and the specific monitoring requirements are determined, and this application does not make specific limitations on this.

[0075] Of course, in addition to adding labels to the sample audio data, training different neural network models may also require other pre-training processing of the sample audio data, which will not be described in detail here. For details, please refer to the relevant technical implementation of neural network model training.

[0076] After the sample audio data is prepared, it is also necessary to set the convergence conditions in the model training process and end the training after the convergence conditions are met. In practical applications, there are many ways to set the convergence conditions. For example, the number of training times can be set as the convergence condition, that is, when the number of training times reaches the preset threshold, the training is stopped. For another example, the accuracy of the running status monitoring results can be used as the convergence condition, and the training is stopped when the accuracy of the running status monitoring results reaches the preset accuracy threshold. Of course, other convergence conditions can also be set, which will not be listed here one by one. The specific requirements can be combined with the requirements for the accuracy of the monitoring results and the relevant technical settings of the neural network model training.

[0077] After completing the above preparations, the sample audio data can be repeatedly input into the neural network model for training, and the parameters of the neural network model can be adjusted according to the training results until the preset convergence conditions are reached to obtain a fault monitoring model.

[0078] Furthermore, based on the preparation process of the aforementioned sample audio data, it can be seen that the sample audio data comes from the actual operation process of the electrical equipment. Based on this, when the sound monitoring device provided by the present application is used to monitor the electrical equipment, it is also necessary to collect the audio data generated by the electrical equipment during operation. The collected audio data can also be used to improve or enrich the sample database and improve the fault monitoring model. Based on this, the main control module provided in any of the above embodiments of the present application is also used to update the fault monitoring model according to the target audio data. It can be understood that the process of updating the fault monitoring model by the main control module is similar to the training process of the fault monitoring model, which will not be repeated here.

[0079] As mentioned above, the main control module can also convert the target audio data into a voiceprint spectrum for display. On this basis, the main control module can also store typical voiceprint spectra, such as the voiceprint spectra corresponding to different faults of the electrical equipment and the voiceprint spectra corresponding to the normal operation of the electrical equipment, etc., and through actual observation of the electrical equipment, the specific location of the fault of the electrical equipment can also be determined, thereby establishing a correspondence between the voiceprint spectrum and the fault location. Based on this, the main control module can also establish a corresponding voiceprint spectrum library. After obtaining the aforementioned target audio data, the target audio data is converted into the corresponding current voiceprint spectrum. By comparing the current voiceprint spectrum with the voiceprint spectra in the aforementioned voiceprint spectrum library one by one, the voiceprint spectrum corresponding to the current voiceprint spectrum can be determined, and based on the correspondence between the voiceprint spectrum and the fault location, the fault location corresponding to the current voiceprint spectrum is determined, thereby obtaining the current fault location of the electrical equipment.

[0080] After the fault location is determined, the fault location can also be displayed by the aforementioned image display device, which is convenient for monitoring personnel to view and maintain the electrical equipment.

[0081] Furthermore, for the sound monitoring device provided in any of the above embodiments, the monitoring module may also be provided with an alarm module. When the monitoring results indicate that the electrical equipment may have a fault, an alarm message may be issued through the alarm module to remind the monitoring personnel to shut down the electrical equipment for maintenance in a timely manner.

[0082] It is understandable that although the online monitoring device provided in the relevant technology can collect audio data of electrical equipment around the clock and monitor the operating status of the electrical equipment, this type of online monitoring device will generate a large amount of monitoring data during operation, which requires high storage capacity of the server, and the entire monitoring scene is expensive, making it difficult to cover all monitoring needs. Compared with the relevant technology, the sound monitoring device provided in this application has a simple and compact structure, and can move the monitoring position according to monitoring needs to meet the monitoring needs of different monitoring scenarios. It can not only accurately monitor the operating status of electrical equipment, but also has the advantages of convenience and flexibility.

[0083] Furthermore, the present application also provides a sound monitoring system for electrical equipment, the monitoring system comprising a host computer and a sound monitoring device provided by any of the above embodiments. Figure 1 The sound monitoring device provided in the embodiment shown in the figure is taken as an example. The structure of the sound monitoring system provided in this embodiment can be referred to in Figure 4 shown.

[0084] Specifically, the host computer 200 is connected to the communication module in the sound monitoring device 100, and the main control module in the sound monitoring device 100 can provide the operating status of the electrical equipment to the host computer 200 through the communication module. On this basis, the main control module can also upload the aforementioned target audio data, the voiceprint spectrum corresponding to the target audio data, and the waveform diagram to the host computer 200 through the communication module.

[0085] Correspondingly, the host computer 200 can also send control instructions to the main control module through the communication module to realize the aforementioned functions such as data backtracking and image display.

[0086] In practical applications, the host computer 200 may be a remote server or other types of data processing devices, and the present application does not limit the specific selection of the host computer.

[0087] To sum up, the sound monitoring system provided in this embodiment realizes the monitoring of the operating status of electrical equipment and the local collection of sound data through the sound monitoring equipment. The sound monitoring equipment is communicatively connected with the host computer. The sound monitoring equipment can upload the obtained sound data, voiceprint spectrum, waveform diagram and the operating status of the electrical equipment to the host computer, thereby realizing the remote storage of a large amount of data, and further performing centralized cloud analysis by the host computer. It can not only accurately grasp the operating information of each electrical equipment, but also obtain the overall operating status of all electrical equipment that provides operating information to the host computer, and timely discover abnormal equipment, so as to timely maintain or replace the abnormal equipment, which is of great significance for improving the overall stability and safety of the power supply network to which the electrical equipment belongs.

[0088] Those skilled in the art will appreciate that the contents disclosed in this disclosure may be subject to various modifications and improvements. For example, the various devices or components described above may be implemented by hardware, or by software, firmware, or a combination of some or all of the three.

[0089] In addition, although the present disclosure makes various references to certain units in the system according to embodiments of the present disclosure, any number of different units can be used and run on the client and / or server. The units are only illustrative, and different aspects of the system and method can use different units.

[0090] Flowcharts are used in this disclosure to illustrate the steps of the method according to the embodiments of the present disclosure. It should be understood that the preceding or following steps are not necessarily performed precisely in order. On the contrary, various steps may be processed in reverse order or simultaneously. At the same time, other operations may also be added to these processes.

[0091] Those skilled in the art will appreciate that all or part of the steps in the above method can be completed by instructing related hardware through a computer program, and the program can be stored in a computer-readable storage medium, such as a read-only memory, etc. Optionally, all or part of the steps in the above embodiment can also be implemented using one or more integrated circuits. Accordingly, each module / unit in the above embodiment can be implemented in the form of hardware or in the form of a software functional module. The present disclosure is not limited to any particular form of combination of hardware and software.

[0092] Unless otherwise defined, all terms used herein have the same meaning as commonly understood by those of ordinary skill in the art to which the present disclosure belongs. It should also be understood that terms such as those defined in common dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and should not be interpreted in an idealized or highly formal sense, unless explicitly defined as such herein.

[0093] The above is an explanation of the present disclosure and should not be considered as a limitation thereof. Although several exemplary embodiments of the present disclosure are described, it will be readily understood by those skilled in the art that many modifications may be made to the exemplary embodiments without departing from the novel teachings and advantages of the present disclosure. Therefore, all such modifications are intended to be included within the scope of the present disclosure as defined in the claims. It should be understood that the above is an explanation of the present disclosure and should not be considered to be limited to the specific embodiments disclosed, and modifications to the disclosed embodiments and other embodiments are intended to be included within the scope of the appended claims. The present disclosure is defined by the claims and their equivalents.

Claims

1. A sound monitoring device applied to electrical equipment, characterized in that: include: A monitoring module and at least one set of sound collection components, wherein: The sound collection component is used to collect initial audio data during the operation of the electrical equipment; The monitoring module includes a main control module, a communication module and at least one audio processing module, wherein: Each of the audio processing modules is connected to a group of the sound collection components to convert the initial audio data into target audio data that matches the main control module; The communication module is connected between the audio processing module and the main control module, and sends the target audio data to the main control module; The main control module monitors the operating status of the electrical device based on the target audio data.

2. The sound monitoring device according to claim 1, characterized in that: The sound monitoring device includes at least two audio processing modules; The communication module includes a switch and an edge computing module, wherein: The switch is respectively connected to each of the audio processing modules, the edge computing module and the main control module; The switch outputs the target audio data provided by each of the audio processing modules to the edge computing module respectively; The edge computing module adds a corresponding preset identifier to the target audio data belonging to the same audio processing module, and sends the target audio data with the preset identifier added to the main control module through the switch.

3. The sound monitoring device according to claim 1, characterized in that: The sound monitoring device includes an audio processing module, and the communication module includes a switch.

4. The sound monitoring device according to claim 1, characterized in that: The monitoring module also includes: a power supply module, wherein: The input end of the power supply module is used to connect to a power source, and the output end of the power supply module is respectively connected to the main control module, the communication module and each of the audio processing modules.

5. The sound monitoring device according to claim 1, characterized in that: The sound collection component includes at least one first sound collector and at least two second sound collectors, wherein: The first sound collector is arranged in contact with the electrical equipment; The second sound collector is spaced a preset distance from the electrical device.

6. The sound monitoring device according to claim 5, characterized in that: The electrical equipment includes an oil-immersed transformer provided with an oil conservator; The sound collection component includes a first sound collector and two second sound collectors; The first sound collector is arranged in contact with the oil conservator; One of the second sound collectors is disposed on the primary side of the oil-immersed transformer, and another of the second sound collectors is disposed on the secondary side of the oil-immersed transformer.

7. The sound monitoring device according to claim 5, characterized in that: The sound collecting assembly further includes a supporting component for supporting the second sound collector.

8. The sound monitoring device according to any one of claims 1 to 7, characterized in that: The main control module is configured with a fault monitoring model, which takes the target audio data as input and the operating state of the electrical equipment as output, and is obtained by training a neural network model, wherein the operating state includes a normal state and a fault state.

9. The sound monitoring device according to claim 8, characterized in that: The main control module is also configured to: update the fault monitoring model according to the target audio data, and determine the fault location of the electrical equipment according to the target audio data and a preset reference voiceprint map.

10. A sound monitoring system for electrical equipment, characterized in that: include: A host computer and a sound monitoring device as claimed in any one of claims 1 to 9, wherein: The host computer is in communication connection with the communication module of the sound monitoring device to obtain the operating status of the electrical device.

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