CN103995194A - Early-warning transformer based on sound monitoring - Google Patents
Early-warning transformer based on sound monitoring Download PDFInfo
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- CN103995194A CN103995194A CN201410191396.2A CN201410191396A CN103995194A CN 103995194 A CN103995194 A CN 103995194A CN 201410191396 A CN201410191396 A CN 201410191396A CN 103995194 A CN103995194 A CN 103995194A
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- output interface
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- sound monitoring
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- amplifying circuit
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Abstract
The invention discloses an early-warning transformer based on sound monitoring. A transformer housing (1) is internally provided with a sound monitoring device (3) and an electric wave display device (4), wherein the sound monitoring device (3) comprises a power supply circuit (301), a pickup (302), a memory (303), a single-chip microcomputer (304) and an output interface (305), and the electric wave display device (4) comprises an oscillograph tube (401), a vertical amplification circuit (402), a horizontal amplification circuit (403) and a sawtooth wave generator (404). A display screen (5) is arranged outside the transformer housing (1), and a synchronous circuit (405) is arranged between the vertical amplification circuit (402) and the horizontal amplification circuit (401). The oscillograph tube (401) is connected with the display screen (5), and the sawtooth wave generator (404) is connected with the memory (303). In the sound monitoring process, electric waveforms are directly displayed or electrical signals are output via the output interface, converted electrical signals need not data processing, and the accuracy is high.
Description
Technical field
The present invention relates to field transformer, relate in particular to a kind of pre-alarm transformer based on sound monitoring.
Background technology
In transformer operational process, when general appearance is abnormal, there will be sound undesired, when transformer normally moves, because when alternating current passes through Transformer Winding, in iron core, produce periodically variable alternating flux, along with the variation of magnetic flux, cause the vibration of iron core and send uniformly " drone " sound, if transformer produces inhomogeneous sound or other different sounds, all belong to transformer sound undesired, can pass through the abnormal of sound, transformer exception is sent to pre-alarm.
In prior art, general by sound transducer collected sound signal, then after signal is processed, Monitoring Data is wirelessly transmitted to Surveillance center, whether monitoring transformer is abnormal, for example, CN102183697 discloses a kind of power transformer sound and vibration monitor system, by being distributed in several monitoring means in a region and several monitoring center, form, monitoring means comprise adopt one or more perception 0.01Hz to the power transformer sound of 10kHz and the multipolymer piezoelectric sensing unit of vibration, a signal processing unit.Signal processing unit carries out pre-service to the perceptual signal of the sensing unit receiving or data and then sends.Monitoring center is responsible for the data that a plurality of monitoring means in receiving area are sent, and carry out analyzing and processing, equally can swap data between monitoring center, to obtain all power transformer sound and vibration information in region, thereby carry out Power Transformer Faults forecast.The present invention has the advantages that cost is low, easy and networking flexibility are installed, but need to pass through signal processing and analyzing, and signal is sent through wireless GPS or 3G module, owing to being provided with iron core and winding in transformer, very large to signal processing and transmission interference, monitor inaccurate.
Summary of the invention
The present invention has overcome the deficiencies in the prior art, and a kind of pre-alarm transformer based on sound monitoring is provided, and by voice signal, with the storage of electric wave waveform or demonstration, monitoring accurately.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
Pre-alarm transformer based on sound monitoring, comprise transformer shell, in transformer shell, be provided with coil, in transformer shell, be provided with sound monitoring device and electric wave display device, sound monitoring device comprises power circuit, acoustic pickup, storer, single-chip microcomputer and output interface, and acoustic pickup, storer, single-chip microcomputer and output interface successively order are connected; Power circuit is connected with acoustic pickup, storer, single-chip microcomputer, output interface; Acoustic pickup collected sound signal, and be converted to after electric wave signal, store storer into,, by output interface, export meanwhile.
Electric wave display device comprises oscillatron, vertical amplifying circuit, horizontal amplifying circuit, saw-toothed wave generator, and transformer shell is outside equipped with display screen, between vertical amplifying circuit, horizontal amplifying circuit, is provided with synchronizing circuit; Vertical amplifying circuit, horizontal amplifying circuit are all connected with saw-toothed wave generator, synchronizing circuit is connected with oscillatron, oscillatron is connected with display screen, display screen is video screen, saw-toothed wave generator is connected with storer, can, by the data-signal of storing in storer after vertical amplifying circuit, horizontal amplifying circuit, oscillatron, show screen display, conveniently by display screen, directly check sound waveform, by sound wave signal, voltage device is carried out to early warning extremely.
Transformer shell is outside equipped with hummer, and single-chip microcomputer is connected with hummer.
Output interface comprises Ethernet interface, RS485 interface and USB interface; Can connect the electric signal of sound is directly transferred to monitoring center from storer by Ethernet, RS485, when Ethernet, RS485 connect, be subject to, also can the electric signal of sound be directly transferred to monitoring center from storer by USB interface in limited time.Not disturbed by the signal that iron core and winding are set in transformer.
On transformer shell, be provided with the through hole for accommodating output interface, output interface is fixedly installed in through hole, is provided with the cover for the protection of output interface on through hole.Need not open transformer shell and just data can be sent out, not use under the state of output interface, use cover protection output interface, safety easy to use.
Between output interface and single-chip microcomputer, be provided with capacitance, prevent that single-chip microcomputer from disturbing to the signal in output interface data transmission procedure.
Power circuit is connected with the output terminal of the coil of transformer, directly by transformer, obtains power supply, does not need external power supply.
Compared with prior art, beneficial effect of the present invention has: the present invention is by acoustic pickup collected sound signal, and be converted to after electric wave signal, store storer into, simultaneously, by output interface, export, can Real-time Collection, transmission, stored sound signal is electric signal, and can be by the data-signal of storing in storer through vertical amplifying circuit, horizontal amplifying circuit, after oscillatron, showing screen display, conveniently by display screen, directly check sound waveform, by sound wave signal, voltage device is carried out to early warning extremely, in sound observation process, directly use electric wave waveform show or electric signal is exported by output interface, do not need the electric signal after conversion to carry out data processing, degree of accuracy is high.
Further, transformer shell is outside equipped with hummer, and single-chip microcomputer is connected with hummer, when voice signal abnormal, Single-chip Controlling buzzer warning.
Further, the application can be connected the electric signal of sound is directly transferred to monitoring center from storer by Ethernet, RS485.
Further, between output interface and storer, be provided with capacitance, prevent that storer from disturbing to the signal in output interface data transmission procedure, monitoring accurately.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is sound monitoring device structural representation of the present invention;
Fig. 3 is electric wave display device structure schematic diagram.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further described.
As shown in Figure 1, the pre-alarm transformer based on sound monitoring, comprises transformer shell 1, is provided with coil 2 in transformer shell 1, is provided with sound monitoring device 3 and electric wave display device 4 in transformer shell 1.
As shown in Figure 2, sound monitoring device 3 comprises power circuit 301, acoustic pickup 302, storer 303, single-chip microcomputer 304 and output interface 305, and acoustic pickup 302, storer 303, single-chip microcomputer 304 and output interface 305 successively order are connected; Power circuit 301 is connected with acoustic pickup 302, storer 303, single-chip microcomputer 304, output interface 305; Acoustic pickup collected sound signal, and be converted to after electric wave signal, store storer 303 into,, by output interface 305, export meanwhile.
As shown in Figure 3, electric wave display device 4 comprises oscillatron 401, vertical amplifying circuit 402, horizontal amplifying circuit 403, saw-toothed wave generator 404, transformer shell 1 is outside equipped with display screen 5, between vertical amplifying circuit 402, horizontal amplifying circuit 401, is provided with synchronizing circuit 405; Vertical amplifying circuit 402, horizontal amplifying circuit 403 are all connected with saw-toothed wave generator 404, synchronizing circuit 405 is connected with oscillatron 401, oscillatron 401 is connected with display screen 5, display screen 5 is video screen, saw-toothed wave generator 404 is connected with storer 303, can be by the data-signal of storage in storer 303 after vertical amplifying circuit 402, horizontal amplifying circuit 403, oscillatron 401, showing screen display, conveniently by display screen, directly check sound waveform, by sound wave signal, voltage device is carried out to early warning extremely.
Transformer shell 1 is outside equipped with hummer 6, and single-chip microcomputer 304 is connected with hummer 6.
Output interface 305 comprises Ethernet interface, RS485 interface and USB interface; Can connect the electric signal of sound is directly transferred to monitoring center from storer by Ethernet, RS485, when Ethernet, RS485 connect, be subject to, also can the electric signal of sound be directly transferred to monitoring center from storer by USB interface in limited time.Not disturbed by the signal that iron core and winding are set in transformer.
On transformer shell 1, be provided with the through hole for accommodating output 305 interfaces; output interface 305 is fixedly installed in through hole; on through hole, be provided with the cover for the protection of output interface, external Ethernet interface, RS485 interface or USB interface can directly connect output interface 305 by inserted mode.Need not open transformer shell and just data can be sent out, not use under the state of output interface, use cover protection output interface, safety easy to use.
Between output interface 305 and single-chip microcomputer 304, be provided with capacitance, prevent that single-chip microcomputer 304 from disturbing to the signal in output interface 305 data transmission procedures.
Power circuit 301 is connected with the output terminal of the coil 2 of transformer, directly by transformer, obtains power supply, does not need external power supply.
Below be only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (8)
1. the pre-alarm transformer of monitoring based on sound, comprise transformer shell (1), in transformer shell (1), be provided with coil (2), it is characterized in that, in described transformer shell (1), be provided with sound monitoring device (3) and electric wave display device (4), sound monitoring device (3) is connected with electric wave display device (4);
Described sound monitoring device (3) comprises power circuit (301), acoustic pickup (302), storer (303), single-chip microcomputer (304) and output interface (305), and described acoustic pickup (302), storer (303), single-chip microcomputer (304) and output interface (305) successively order are connected; Described power circuit (301) is connected with acoustic pickup (302), storer (303), single-chip microcomputer (304), output interface (305);
Described electric wave display device (4) comprises oscillatron (401), vertical amplifying circuit (402), horizontal amplifying circuit (403), saw-toothed wave generator (404), described transformer shell (1) is outside equipped with display screen (5), between described vertical amplifying circuit (402), horizontal amplifying circuit (401), is provided with synchronizing circuit (405); Described vertical amplifying circuit (402), horizontal amplifying circuit (403) are all connected with saw-toothed wave generator (404), and described synchronizing circuit (405) is connected with oscillatron (401), and described oscillatron (401) is connected with display screen (5); Saw-toothed wave generator (404) is connected with storer (303).
2. the pre-alarm transformer based on sound monitoring according to claim 1, is characterized in that: described transformer shell (1) is outside equipped with hummer (6), and described single-chip microcomputer (304) is connected with hummer (6).
3. the pre-alarm transformer based on sound monitoring according to claim 1, is characterized in that: described output interface (305) comprises Ethernet interface and RS485 interface.
4. the pre-alarm transformer based on sound monitoring according to claim 1; it is characterized in that: described transformer shell is provided with the through hole for accommodating output interface (305) on (1); described output interface (305) is fixedly installed in described through hole, is provided with the cover for the protection of output interface (305) on described through hole.
5. the pre-alarm transformer based on sound monitoring according to claim 1, is characterized in that: described output interface (305) comprises USB interface.
6. the pre-alarm transformer based on sound monitoring according to claim 1, is characterized in that: between described output interface (305) and single-chip microcomputer (304), be provided with capacitance.
7. the pre-alarm transformer based on sound monitoring according to claim 1, is characterized in that: described display screen (5) is video screen.
8. the pre-alarm transformer based on sound monitoring according to claim 1, is characterized in that: described power circuit (301) is connected with the output terminal of the coil (2) of transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410191396.2A CN103995194A (en) | 2014-05-08 | 2014-05-08 | Early-warning transformer based on sound monitoring |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410191396.2A CN103995194A (en) | 2014-05-08 | 2014-05-08 | Early-warning transformer based on sound monitoring |
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| CN103995194A true CN103995194A (en) | 2014-08-20 |
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| CN201410191396.2A Pending CN103995194A (en) | 2014-05-08 | 2014-05-08 | Early-warning transformer based on sound monitoring |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107014483A (en) * | 2017-03-31 | 2017-08-04 | 柳州易农科技有限公司 | A kind of plant equipment self-checking system monitored based on sound |
| CN107036702A (en) * | 2017-05-16 | 2017-08-11 | 国网新疆电力公司昌吉供电公司 | Substation transformer audio monitoring device |
| CN107631791A (en) * | 2017-08-07 | 2018-01-26 | 国家电网公司 | A kind of sensor for monitoring oil-filled transformer noise |
| CN112945597A (en) * | 2021-01-28 | 2021-06-11 | 河海大学 | Transformer substation high-voltage equipment operation state monitoring method based on voice recognition method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107014483A (en) * | 2017-03-31 | 2017-08-04 | 柳州易农科技有限公司 | A kind of plant equipment self-checking system monitored based on sound |
| CN107036702A (en) * | 2017-05-16 | 2017-08-11 | 国网新疆电力公司昌吉供电公司 | Substation transformer audio monitoring device |
| CN107631791A (en) * | 2017-08-07 | 2018-01-26 | 国家电网公司 | A kind of sensor for monitoring oil-filled transformer noise |
| CN107631791B (en) * | 2017-08-07 | 2019-09-10 | 国家电网公司 | A kind of sensor monitoring oil-immersed transformer noise |
| CN112945597A (en) * | 2021-01-28 | 2021-06-11 | 河海大学 | Transformer substation high-voltage equipment operation state monitoring method based on voice recognition method |
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Application publication date: 20140820 |
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