CN218956718U - A voiceprint online monitoring device for GIS equipment - Google Patents

Abstract

The utility model discloses a voiceprint on-line monitoring device for GIS equipment, which comprises: a metal shell provided with a sound sensor hole; the signal receiving circuit board is arranged in the metal shell; the sound sensor is arranged on the signal receiving circuit board and is electrically connected with the signal receiving circuit board, and the setting position of the sound sensor corresponds to the sound sensor hole; the signal processing circuit board is electrically connected with the signal receiving circuit board, converts the sound signal transmitted by the signal receiving circuit board into a digital signal, and outputs a fault diagnosis result based on the digital signal; the wireless transmission module is connected with the signal processing circuit board to transmit the fault diagnosis result to the far end; and the power supply assembly is used for supplying power to the voiceprint on-line monitoring device.

Description

A voiceprint online monitoring device for GIS equipment

technical field

The utility model relates to a sensor device, in particular to a sensor device for detecting sound signals.

Background technique

With the rapid development of power technology and the continuous expansion of power grid scale, large power grids and UHV systems have put forward higher requirements for the reliability of key power equipment such as GIS (Gas Insulated Switchgear). As one of the most important devices in the power system, switchgear is responsible for the dual tasks of control and protection. If a fault occurs during operation and is not dealt with in time, it may bring serious harm to the power grid.

Existing operating experience shows that mechanical failure is one of the main failure types of switchgear. In addition, most of the gas leakage is caused by mechanical failure, and some mechanical failures will eventually induce partial discharge. Therefore, the detection of mechanical faults in switchgear is of great significance for improving the safety and reliability of power systems and reducing their operating costs.

The sound signal is the energy radiated from the mechanical wave of the power equipment to the sound transmission medium. It belongs to the same source signal as the vibration signal. The sound signal contains a large amount of vibration information and is an important indicator for analyzing the operation status of the equipment.

During the operation of GIS equipment, with the increase of the operating life and the change of real-time load, there will be abnormal states such as loosening of device fastening devices, abnormal mechanism operation or transmission, partial discharge or breakdown discharge, and correspondingly, the sound it emits will also change.

Based on this, it is expected to obtain a voiceprint online monitoring device for GIS equipment, which can monitor and diagnose the voice signal of the GIS equipment.

Utility model content

The purpose of the utility model is to provide an online voiceprint monitoring device for GIS equipment, which can monitor the GIS equipment online, so as to provide support for online assessment of the failure of the GIS equipment.

Based on the above purpose, the utility model proposes a voiceprint online monitoring device for GIS equipment, including:

A metal shell with a sound sensor hole;

a signal receiving circuit board, which is arranged in the metal casing;

Sound sensor, it collects the sound signal of GIS equipment, and described sound sensor is arranged on described signal receiving circuit board, and is electrically connected with described signal receiving circuit board, and the setting position of described sound sensor corresponds to sound sensor hole;

A signal processing circuit board, which is electrically connected to the signal receiving circuit board, the signal processing circuit board converts the sound signal transmitted by the signal receiving circuit board into a digital signal, and outputs a fault diagnosis result based on the digital signal;

A wireless transmission module, which is connected to the signal processing circuit board, to transmit the fault diagnosis result to the remote end;

The power supply component supplies power to the voiceprint online monitoring device.

In the voiceprint online monitoring device described in the present invention, the signal receiving circuit board is essentially an integrated circuit board, which is used to receive multi-channel sound sensor signals, thereby forming a sound sensor array together with the sound sensors.

In the voiceprint online monitoring device described in the utility model, the signal processing circuit board is essentially another integrated circuit board, which converts the received sound signal into a digital signal, and then performs filtering and feature extraction processing , since the characteristics of the sound signal correspond to the type of fault, the equipment fault can be judged and identified based on the extracted sound features.

Due to filtering, feature extraction of sound signals, and fault identification based on feature extraction, there are many technical solutions in the prior art, which are known to those skilled in the art, and are not originally proposed by the inventor of the present case. Therefore This article will not describe it in detail here.

The voiceprint online monitoring device described in the utility model can transmit the fault diagnosis results of the monitored GIS equipment to remote equipment, such as computers, servers, etc., through the wireless transmission module, wherein each voiceprint online monitoring device corresponds to monitoring a One GIS device, which allows monitoring personnel to monitor multiple GIS devices without having to visit the GIS device site in person.

Further, in the voiceprint online monitoring device for GIS equipment described in the present utility model, the metal casing includes a base and an upper cover connected thereto.

In some more specific embodiments, the base and the upper cover may be connected by bolts.

Further, in the voiceprint online monitoring device for GIS equipment described in the present invention, there are at least several sound sensors arranged uniformly along the circumferential direction of the circular signal receiving circuit board to form Sound sensor array.

Further, in the voiceprint online monitoring device for GIS equipment described in the present invention, there are at least four sound sensors.

Further, in the voiceprint online monitoring device for GIS equipment described in the present invention, the signal processing circuit board is provided with a transmission interface, and the wireless transmission module is a pluggable mobile WiFi.

Further, in the voiceprint online monitoring device for GIS equipment described in the present invention, the power supply component includes a rechargeable battery and a charging circuit board connected to the rechargeable battery.

Of course, in some other implementations, the power supply component can also be directly connected to electricity without a rechargeable battery, but this implementation is less convenient to use than the above-mentioned implementation with a rechargeable battery.

Further, in the voiceprint online monitoring device for GIS equipment described in the present utility model, a Type-C port is provided on the charging circuit board. The Type-C port is used for external charging.

Further, the voiceprint online monitoring device for GIS equipment described in the present invention also includes a battery pressure plate, which is arranged in the metal casing and above the rechargeable battery, and the battery pressure plate and the metal casing The rechargeable battery is fixed by screw connection.

Furthermore, in the voiceprint online monitoring device for GIS equipment described in the present utility model, the signal receiving circuit board is fixedly arranged on the upper cover.

The voiceprint online monitoring device for GIS equipment described in the utility model can monitor remote GIS equipment online, which allows monitoring personnel to monitor multiple GIS equipment without having to visit the GIS equipment site in person. Ensure the safety and efficiency of grid equipment operation.

Description of drawings

Fig. 1 shows the internal structure of the voiceprint online monitoring device for GIS equipment described in the present invention in an embodiment.

Fig. 2 shows the structure of the base of the voiceprint online monitoring device for GIS equipment according to an embodiment of the present invention.

Fig. 3 shows the front structure of the upper cover of the voiceprint online monitoring device for GIS equipment according to an embodiment of the present invention.

Fig. 4 shows the back structure of the upper cover of the voiceprint online monitoring device for GIS equipment according to an embodiment of the present invention.

Fig. 5 shows the structure of the signal receiving circuit board in an embodiment of the voiceprint online monitoring device for GIS equipment according to the present invention.

Fig. 6 shows the structure of the signal processing circuit board in an embodiment of the voiceprint online monitoring device for GIS equipment according to the present invention.

Fig. 7 shows the structure of the charging circuit board in an embodiment of the online voiceprint monitoring device for GIS equipment according to the present invention.

Fig. 8 shows the structure of the battery pressure plate in an embodiment of the voiceprint online monitoring device for GIS equipment according to the present invention.

Detailed ways

The voiceprint online monitoring device for GIS equipment described in the utility model will be further explained and described below in conjunction with the drawings and specific embodiments of the specification. However, the explanation and specification do not constitute an improper limitation on the technical solution of the utility model. .

Fig. 1 shows the internal structure of the voiceprint online monitoring device for GIS equipment described in the present invention in an embodiment.

In one embodiment of the present invention, the voiceprint online monitoring device for GIS equipment includes: a metal shell (not shown in FIG. 1 ), on which a sound sensor hole is arranged. Have in the metal shell: signal receiving circuit board 1; The sound sensor 2 that is used to collect the sound signal of GIS equipment, it is located on the signal receiving circuit board 1, and is electrically connected with signal receiving circuit board 1, the setting position of sound sensor and The sound sensor holes on the metal housing correspond. The signal processing circuit board 3 is electrically connected with the signal receiving circuit board 1, and the signal processing circuit board 3 is used to convert the sound signal transmitted by the signal receiving circuit board 1 into a digital signal, and output the fault diagnosis result based on the digital signal; the wireless transmission module 4 It is connected with the signal processing circuit board 3 to transmit the fault diagnosis result to remote monitoring equipment, such as a computer, server, etc.; a power supply component, which supplies power to the voiceprint online monitoring device.

Wherein, the signal receiving circuit board is essentially an integrated circuit board, which is used to receive the sound sensor signal. The signal processing circuit board, which is essentially another integrated circuit board, converts the received sound signal into a digital signal, and then performs filtering and feature extraction. Since the characteristics of the sound signal correspond to the type of fault, it can be based on The extracted sound features are used to judge and identify equipment faults. The wireless transmission module can transmit the fault diagnosis results of the GIS equipment it monitors to the remote equipment, and each voiceprint online monitoring device corresponds to monitoring a GIS equipment, which makes the monitoring personnel do not have to visit the GIS equipment site in person, can monitor multiple GIS equipment for monitoring.

In some embodiments, the metal casing of the voiceprint online monitoring device for GIS equipment includes a base 5 which is separately arranged and an upper cover 6 connected thereto. The metal shell can effectively shield external signals, and it is a rectangular parallelepiped as a whole with a hollow interior.

Fig. 2 shows the structure of the base of the voiceprint online monitoring device for GIS equipment according to an embodiment of the present invention.

In some more specific embodiments, as shown in FIG. 2 , the base 5 is provided with a first mounting hole 53 for mounting the wireless transmission module, a second mounting hole 54 for mounting the power switch 12 and a Install the third installation hole 55 of the Type-C port of the power supply component.

The bottom of the base 5 has a position for installing the power supply assembly, and a step and a screw hole 51 can be provided to install the battery pressing plate to fix the battery, and a screw hole 52 can also be provided for fixing and installing the upper cover with screws.

Fig. 3 shows the front structure of the upper cover of the voiceprint online monitoring device for GIS equipment according to an embodiment of the present invention.

In some more specific implementations, as shown in Figure 3, an acoustic sensor hole 61 is provided on the upper cover 6 for corresponding to the acoustic sensor, so as to ensure that the acoustic signal is well received by the acoustic sensor; Cooperate with the screw holes 52 on the base 5 to realize the connection between the upper cover 6 and the base 5 .

In some embodiments, the signal receiving circuit board 1 used in the voiceprint online monitoring device for GIS equipment is fixedly arranged on the upper cover 6 .

Fig. 4 shows the back structure of the upper cover of the voiceprint online monitoring device for GIS equipment according to an embodiment of the present invention.

In this embodiment, the back of the upper cover 6 is provided with a fixing component 63 for installing the signal receiving circuit board 1 .

Fig. 5 shows the structure of the signal receiving circuit board in an embodiment of the voiceprint online monitoring device for GIS equipment according to the present invention.

As shown in Figure 5, in some embodiments, the signal receiving circuit board 1 is circular, for example, four sound sensors 2 are evenly arranged along the circumferential direction of the circular signal receiving circuit board 1 to form a sound sensor array. The signal receiving circuit board 1 is provided with a connecting hole 11 for connecting with the upper cover 6 .

Fig. 6 shows the structure of the signal processing circuit board in an embodiment of the voiceprint online monitoring device for GIS equipment according to the present invention.

As shown in FIG. 6 , in some embodiments, a pluggable mobile WiFi 4 is connected to the signal processing circuit board 3 . The signal processing circuit board 3 is also provided with an installation hole 31 for fixed installation of the signal processing circuit board.

In some embodiments of the present utility model, the power supply assembly can realize charging, as shown in FIG. 1 and FIG. 7 , it can include a rechargeable battery 9 and a charging circuit board 8 connected to the rechargeable battery.

Fig. 7 shows the structure of the charging circuit board in an embodiment of the online voiceprint monitoring device for GIS equipment according to the present invention.

As shown in FIG. 7 , the charging circuit board 8 is provided with a Type-C port 10 , so that the external charging of the rechargeable battery 9 can be realized.

Fig. 8 shows the structure of the battery pressure plate in an embodiment of the voiceprint online monitoring device for GIS equipment according to the present invention.

In some embodiments, the voiceprint online monitoring device for GIS equipment also includes a battery pressure plate 7, as shown in Figure 1, the battery pressure plate 7 is arranged above the rechargeable battery 9, and the battery pressure plate is connected to the metal casing by bolts , so as to fix the rechargeable battery.

As shown in FIG. 8 , a connecting pin 72 is provided on the battery pressing plate 7 , which cooperates with an opening 81 on the charging circuit board to fix the charging circuit board 8 . The battery pressing plate 7 is also provided with fixing screw holes 71 for fixing the battery pressing plate 7 on the base 5 .

When the voiceprint online monitoring device for GIS equipment is working: the sound sensor is facing the GIS equipment to collect sound signals. Turn on the power switch 12, the power supply component supplies power to the whole device, the sound sensor receives the external sound signal, the signal receiving circuit board transmits the sound signal to the signal processing circuit board, and the signal processing circuit board transmits the sound signal based on the signal receiving circuit board through wireless transmission The module sends the fault diagnosis result to the remote device.

It should be noted that the prior art part in the scope of protection of the present utility model is not limited to the embodiments given in the application documents, all prior art not contradicting the scheme of the present utility model, including but not limited to Prior patent documents, prior publications, prior public use, etc., can all be included in the protection scope of the present utility model.

In addition, the combination of the technical features in this case is not limited to the combination described in the claims of this case or the combination described in the specific examples. All the technical features recorded in this case can be freely combined or combined in any way, unless conflict with each other.

It should also be noted that the above-mentioned embodiments are only specific embodiments of the present invention. Apparently, the utility model is not limited to the above embodiments, and the similar changes or deformations made thereupon can be directly obtained or easily associated with the content disclosed by the utility model, and all should belong to the utility model scope of protection.

Claims (9)

1. A voiceprint on-line monitoring device for GIS equipment, characterized by comprising:

a metal shell provided with a sound sensor hole;

the signal receiving circuit board is arranged in the metal shell;

the sound sensor is arranged on the signal receiving circuit board and is electrically connected with the signal receiving circuit board, and the setting position of the sound sensor corresponds to the sound sensor hole;

the signal processing circuit board is electrically connected with the signal receiving circuit board, converts the sound signal transmitted by the signal receiving circuit board into a digital signal, and outputs a fault diagnosis result based on the digital signal;

the wireless transmission module is connected with the signal processing circuit board to transmit the fault diagnosis result to the far end;

and the power supply assembly is used for supplying power to the voiceprint on-line monitoring device.

2. The voiceprint on-line monitoring apparatus for GIS devices of claim 1 wherein the metal housing includes a base and an upper cover connected thereto.

3. The voiceprint on-line monitoring device for GIS equipment according to claim 1, wherein the number of the sound sensors is several, which are uniformly distributed along the circumferential direction of the circular signal receiving circuit board, so as to form a sound sensor array.

4. The voiceprint online monitoring apparatus for a GIS device of claim 1, wherein the acoustic sensor is provided with at least four.

5. The voiceprint on-line monitoring device for GIS equipment according to claim 1, wherein the signal processing circuit board is provided with a transmission interface, and the wireless transmission module is pluggable mobile WiFi.

6. The voiceprint on-line monitoring apparatus for a GIS device of claim 1, wherein the power assembly comprises a rechargeable battery and a charging circuit board connected to the rechargeable battery.

7. The voiceprint on-line monitoring device for GIS equipment of claim 6, wherein the charging circuit board is provided with a Type-C port.

8. The voiceprint on-line monitoring device for GIS equipment of claim 6, further comprising a battery pressure plate disposed within the metal housing and above the rechargeable battery, the battery pressure plate being bolted to the metal housing.

9. The voiceprint on-line monitoring device for GIS equipment of claim 2, wherein the signal receiving circuit board is fixedly disposed on the upper cover.

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