CN210927844U - Substation equipment intelligent monitoring system based on audio characteristics - Google Patents
Substation equipment intelligent monitoring system based on audio characteristics Download PDFInfo
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- CN210927844U CN210927844U CN202020313429.7U CN202020313429U CN210927844U CN 210927844 U CN210927844 U CN 210927844U CN 202020313429 U CN202020313429 U CN 202020313429U CN 210927844 U CN210927844 U CN 210927844U
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Abstract
The utility model discloses a substation equipment intelligent monitoring system based on audio frequency characteristics, which comprises an audio frequency acquisition device, a video frequency acquisition device, a signal processing unit, a time service unit, a sub-node power modem, a main power modem, a substation monitoring host, a DTU transmission unit and a centralized monitoring terminal; the utility model has good reliability, strong practicability and high intelligent degree, realizes the real-time monitoring of the audio condition of the electrical equipment of the transformer substation in the running state, and reduces the workload of the patrol personnel; the real-time monitoring of video information is realized, and meanwhile, a time service unit is arranged, so that the synchronism of video and audio acquisition time is ensured, and the accuracy of fault judgment is further improved; the electric power modem is used for directly realizing the transmission of audio and video information through the power line, and additional wiring is avoided.
Description
Technical Field
The utility model relates to a transformer substation monitors technical field, especially relates to a substation equipment intelligent monitoring system based on audio frequency characteristic.
Background
Various sounds are inevitably generated by each device in the transformer substation during operation, and the operation state and the fault category of the device can be judged according to the sound type and the change condition; for example, when the transformer is in normal operation, clear and regular buzzing sound can be generated due to vibration of built-in components of the transformer, and corresponding sound can be generated when various faults occur to the transformer: for example, when a gurgling sound similar to liquid boiling occurs, it may be that short-circuit current in the transformer winding causes local overheating of insulating oil, and when a discontinuous herch sound occurs in the transformer, it may be that the grounding of its built-in core is poor, and if the transformer is not detected at this time, it is very easy to cause an expansion of fault conditions.
At present, the detection method for judging the running state of the transformer by sound is mainly finished manually, namely, professional fault detection personnel listen to the sound generated by running by an insulating rod tightly attached to the transformer; the method has higher requirements on detection personnel and more unstable factors, and can not realize remote real-time monitoring.
SUMMERY OF THE UTILITY MODEL
In order to overcome not enough among the background art, the utility model discloses a substation equipment intelligent monitoring system based on audio frequency characteristic, through the audio signal when each equipment operation of real-time supervision transformer substation, realize equipment running state on-line monitoring to cooperate with video monitoring, improved the accuracy that the trouble was judged.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an intelligent substation equipment monitoring system based on audio characteristics comprises an audio acquisition device, a video acquisition device, a signal processing unit, a time service unit, a sub-node power modem, a main power modem, a substation monitoring host, a DTU transmission unit and a centralized monitoring terminal; each device of the transformer substation is provided with a corresponding audio acquisition device and a corresponding video acquisition device, a transformer substation monitoring host is arranged in a transformer substation control room, and a centralized monitoring terminal is arranged in a transformer substation centralized control center; the audio acquisition device and the video acquisition device are connected with corresponding signal processing units, the upper end of each time service unit is connected with an external high-precision time service source, and the lower end of each time service unit is connected with the signal processing unit; the signal processing unit is connected with the corresponding sub-node power modem, and the sub-node power modem is connected with the main power modem through a power line; the main power modem is connected with the transformer substation monitoring host, the transformer substation monitoring host is connected into the 4G network through the DTU transmission unit, and information interaction is carried out between the transformer substation monitoring host and the centralized monitoring terminal connected into the Internet.
Furthermore, the signal processing unit comprises a signal conditioning circuit, a decoding module, a microprocessor and a communication interface which are connected in sequence; the input end of the signal conditioning circuit is respectively connected with the audio acquisition device and the video acquisition device, the microprocessor is connected with the time service unit, and the communication interface is connected with the sub-node power modem.
Furthermore, the signal conditioning circuit comprises a band-pass filtering module and a signal amplifying module.
Furthermore, the decoding module comprises an audio decoding chip, a video decoding chip and peripheral circuits thereof.
Furthermore, the intelligent substation equipment monitoring system based on the audio features is provided with an alarm, and the alarm is connected with a substation monitoring host.
Further, the audio acquisition device is a sound pickup.
Further, the video acquisition device is a camera.
Furthermore, the external high-precision time service source connected with the upper end of the time service unit is a Beidou or GPS high-precision clock source.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a transformer substation equipment intelligent monitoring system based on audio frequency characteristic, good reliability, strong practicability and high intelligent degree, which realizes the real-time monitoring of the audio frequency condition of the transformer substation electrical equipment in the running state and reduces the workload of the patrol personnel; the real-time monitoring of video information is realized, and meanwhile, a time service unit is arranged, so that the synchronism of video and audio acquisition time is ensured, and the accuracy of fault judgment is further improved; the electric power modem is used for directly realizing the transmission of audio and video information through the power line, and additional wiring is avoided.
Drawings
Fig. 1 is the utility model discloses intelligent monitoring system schematic structure.
In the figure: 1. an audio acquisition device; 2. a video capture device; 3. a signal processing unit; 4. a time service unit; 5. a child node power modem; 6. a main power line cat; 7. a transformer substation monitoring host; 8. a DTU transmission unit; 9. centralized monitoring terminals; 2-1, a signal conditioning circuit; 2-2, a decoding module; 2-3, a microprocessor; 2-4, communication interface.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution: the utility model provides a substation equipment intelligent monitoring system based on audio frequency characteristic, includes audio acquisition device 1, video acquisition device 2, signal processing unit 3, time service unit 4, sub-node electric power cat 5, main electric power cat 6, transformer substation's monitoring host computer 7, DTU transmission unit 8, centralized monitoring terminal 9.
The audio acquisition device 1 and the video acquisition device 2 are connected with the corresponding signal processing unit 3, the upper end of the time service unit 4 is connected with an external high-precision time service source, and the lower end is connected with the signal processing unit 3; the signal processing unit 3 is connected with a corresponding sub-node power modem 5, and the sub-node power modem 5 is connected with a main power modem 6 through a power line; the main power modem 6 is connected with the transformer substation monitoring host 7, and the transformer substation monitoring host 7 is accessed to the 4G network through the DTU transmission unit.
Each equipment of transformer substation sets up corresponding audio acquisition device 1 and video acquisition device 2 like detecting transformer, condenser, reactor, GIS gas insulated switch etc. and audio acquisition device 1 can be the adapter, and video acquisition device 2 can be the camera.
The signal processing unit 3 carries out preprocessing such as filtering, amplifying, decoding and the like on the collected audio and video signals; the signal processing unit 3 comprises a signal conditioning circuit 3-1, a decoding module 3-2, a microprocessor 3-3 and a communication interface 3-4 which are connected in sequence; the input end of the signal conditioning circuit 3-1 is respectively connected with the audio acquisition device 1 and the video acquisition device 2, the microprocessor 3-3 is connected with the time service unit 4, and the communication interface 3-4 is connected with the sub-node power modem 5.
The signal conditioning circuit 3-1 comprises a band-pass filtering module and a signal amplifying module, and is used for filtering and amplifying received audio and video analog signals.
The decoding module 3-2 comprises an audio decoding chip, a video decoding chip and peripheral circuits thereof, and is used for decoding audio and video signals and outputting serial digital signals; the video decoding chip can be selected from TVP5146, has strong decoding function and supports decoding various common signal forms; the audio decoding chip can be selected from TLV320AIC3101, which is a low power consumption serial audio encoding and decoding chip comprising a plurality of AGC and multi-input and multi-output programmable single-end or fully differential configuration.
The microprocessor 3-3 realizes the processing of audio and video signals, receives time service information and determines the acquisition time of the audio and video signals so as to ensure the synchronism of the audio and video signals; microprocessor 3-3 may be selected from TI corporation DSP chip TMS320DM624, which has very strong processing performance and high flexibility.
After audio, video and other signals corresponding to each device of the transformer substation are preprocessed by the signal processing unit 3, the signals are sent to the corresponding sub-node power modem 5 by using the communication interfaces 3-4; the signal output by the signal processing unit 3 is loaded on a power line through a sub-node power modem 5, and is transmitted to a main power modem 6 by using the power line, and the main power modem 6 separates useful numbers such as audio, video and the like from the power line and transmits the useful numbers to a transformer substation monitoring host 7; utilize the electric power cat to realize information communication with the power line as transmission media, need not to carry out extra wiring, the material resources of using manpower sparingly.
The transformer substation monitoring host 7 is arranged in a transformer substation control room, can select a Hua IPC610-MB-L model and is used for monitoring sound and video signals of each device of the transformer substation and judging faults; after receiving the audio and video signals, the substation monitoring host 7 performs spectrum analysis and characteristic quantity extraction on the audio signals, and compares the audio signals with a fault audio database to judge whether the electrical equipment has faults or not and judge the specific fault types; simultaneously storing the audio and video numbers to perform subsequent statistical analysis processing; the transformer substation monitoring host 7 judges that a fault occurs, sends out an alarm sound through the alarm to inform workers, and the workers check video information at the same time according to the fault judgment result and further confirm the fault occurrence reason and position so as to process in time.
The centralized monitoring terminal 9 is arranged in a centralized control center of the transformer substation, the transformer substation monitoring host 7 is accessed to a 4G network through a DTU transmission unit 8, remote communication is carried out between the transformer substation monitoring host and the centralized monitoring terminal 9 accessed to the Internet, information such as monitored audio, video and judgment results is sent to the centralized monitoring terminal 9, and meanwhile, related commands sent by the centralized monitoring terminal 9 can be received; the substation monitoring host 7 can be in remote communication with a plurality of substation monitoring hosts, so that centralized control of a plurality of substations by the centralized monitoring terminal 9 is realized.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a substation equipment intelligent monitoring system based on audio frequency characteristic which characterized in that: the system comprises an audio acquisition device (1), a video acquisition device (2), a signal processing unit (3), a time service unit (4), a sub-node power modem (5), a main power modem (6), a transformer substation monitoring host (7), a DTU transmission unit (8) and a centralized monitoring terminal (9); each device of the transformer substation is provided with a corresponding audio acquisition device (1) and a corresponding video acquisition device (2), a transformer substation monitoring host (7) is arranged in a transformer substation control room, and a centralized monitoring terminal (9) is arranged in a transformer substation centralized control center; the audio acquisition device (1) and the video acquisition device (2) are connected with the corresponding signal processing unit (3), the upper end of the time service unit (4) is connected with an external high-precision time service source, and the lower end is connected with the signal processing unit (3); the signal processing unit (3) is connected with the corresponding sub-node electric modem (5), and the sub-node electric modem (5) is connected with the main electric modem (6) through a power line; the main power modem (6) is connected with the substation monitoring host (7), the substation monitoring host (7) is accessed into the 4G network through the DTU transmission unit, and information interaction is carried out between the substation monitoring host and the centralized monitoring terminal (9) accessed into the Internet.
2. The intelligent substation equipment monitoring system based on the audio features of claim 1, wherein: the signal processing unit (3) comprises a signal conditioning circuit (3-1), a decoding module (3-2), a microprocessor (3-3) and a communication interface (3-4) which are connected in sequence; the input end of the signal conditioning circuit (3-1) is respectively connected with the audio acquisition device (1) and the video acquisition device (2), the microprocessor (3-3) is connected with the time service unit (4), and the communication interface (3-4) is connected with the sub-node power modem (5).
3. The intelligent substation equipment monitoring system based on the audio features of claim 2 is characterized in that: the signal conditioning circuit (3-1) comprises a band-pass filtering module and a signal amplifying module.
4. The intelligent substation equipment monitoring system based on the audio features of claim 3 is characterized in that: the decoding module (3-2) comprises an audio decoding chip, a video decoding chip and peripheral circuits thereof.
5. The intelligent substation equipment monitoring system based on the audio features of claim 1, wherein: an alarm is arranged on an intelligent substation equipment monitoring system based on audio features and is connected with a substation monitoring host (7).
6. The intelligent substation equipment monitoring system based on the audio features of claim 1, wherein: the audio acquisition device (1) is a sound pickup.
7. The intelligent substation equipment monitoring system based on the audio features of claim 1, wherein: the video acquisition device (2) is a camera.
8. The intelligent substation equipment monitoring system based on the audio features of claim 1, wherein: and the external high-precision time service source connected with the upper end of the time service unit (4) is a Beidou or GPS high-precision clock source.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020313429.7U CN210927844U (en) | 2020-03-13 | 2020-03-13 | Substation equipment intelligent monitoring system based on audio characteristics |
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| CN202020313429.7U CN210927844U (en) | 2020-03-13 | 2020-03-13 | Substation equipment intelligent monitoring system based on audio characteristics |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112531895A (en) * | 2020-12-01 | 2021-03-19 | 国网电力科学研究院武汉南瑞有限责任公司 | Real-time monitoring system based on vector acoustic audio array under extremely cold working condition |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112531895A (en) * | 2020-12-01 | 2021-03-19 | 国网电力科学研究院武汉南瑞有限责任公司 | Real-time monitoring system based on vector acoustic audio array under extremely cold working condition |
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