CN203838113U - System for on-line monitoring of mechanical states of ceramic post insulators - Google Patents
System for on-line monitoring of mechanical states of ceramic post insulators Download PDFInfo
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- CN203838113U CN203838113U CN201420133723.4U CN201420133723U CN203838113U CN 203838113 U CN203838113 U CN 203838113U CN 201420133723 U CN201420133723 U CN 201420133723U CN 203838113 U CN203838113 U CN 203838113U
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- 239000012212 insulator Substances 0.000 title claims abstract description 57
- 238000012544 monitoring process Methods 0.000 title claims abstract description 21
- 239000000919 ceramic Substances 0.000 title abstract 4
- 238000004891 communication Methods 0.000 claims abstract description 23
- 230000005284 excitation Effects 0.000 claims abstract description 13
- 229910052573 porcelain Inorganic materials 0.000 claims description 51
- 230000001133 acceleration Effects 0.000 claims description 10
- 238000013519 translation Methods 0.000 claims description 7
- 238000011161 development Methods 0.000 abstract description 2
- 230000007547 defect Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000007405 data analysis Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Abstract
The utility model relates to a system for on-line monitoring of mechanical states of ceramic post insulators. The system comprises an exciter adsorbed to a flange at the bottom of the insulator and a signal collector. The output end of a wireless excitation acquisition module is connected with the input end of the exciter, the output end of the signal collector is connected with the input end of the wireless excitation acquisition module, the wireless excitation acquisition module is in wireless communication with a wireless relay module, the wireless relay module is in wireless communication with a central receiving station, and the central receiving station is connected with a background computer through a serial port. According to the system, by collecting, analyzing and controlling mechanical parameters of the ceramic post insulators, not only can real-time monitoring be achieved, but also a mechanical performance development curve of each ceramic post insulator can be observed; when the insulators are damaged or mechanical strength drops to be below a prewarning value, the mechanical states can be timely acquired by the system, the system timely gives an alarm to inform workers, and accordingly accidents are avoided.
Description
Technical field
The utility model relates to porcelain strut insulator crack monitoring technical field in electric system, especially a kind of porcelain strut insulator machine performance on-line monitoring system.
Background technology
Porcelain strut insulator is the important composition equipment of power house and substation operation, plays a part support wire and insulation.Because porcelain strut insulator is the electrotechnical porcelain product that high temperature sintering becomes, belong to hard brittle material, do not have intrinsic deformation energy and toughness extremely low, moreover porcelain strut insulator work under bad environment, be subject to external influence factor a lot, as strong wind, sleet, icing, Exposure to Sunlight etc., and the extra-stress causing increases, if porcelain strut insulator exists tiny flaw, just easily concentrate and damage at this place's generation stress.In recent years, often occurred because of the porcelain strut insulator accident causing that ruptures.
In order effectively to detect the crackle of porcelain strut insulator, carry out not damaged research work for porcelain strut insulator both at home and abroad always, at present domestic have ultra-sonic defect detector, uv electron optical inspection instrument, vibroacoustics defectoscope etc. at conventional equipment aspect the nondestructive examination of insulator, three all adopts off-line type detection mode, there is following defect in off-line type monitoring mode: owing to must adopting artificial offline inspection, easily causes human operational error, false retrieval, the undetected false judgment causing; Take human resources, inefficiency; Cannot accomplish Real-Time Monitoring, occur when abnormal at porcelain strut insulator, cannot and alarm, cannot avoid in time the generation of accident.
Utility model content
The purpose of this utility model be to provide a kind of can on-line real time monitoring porcelain strut insulator machine performance, without manual operation, improve the porcelain strut insulator machine performance on-line monitoring system of the reliability detecting.
For achieving the above object, the utility model has adopted following technical scheme: porcelain strut insulator machine performance on-line monitoring system, comprise the energizer and the signal picker that are adsorbed on porcelain strut insulator flange in the bottom, the output terminal of wireless exciting acquisition module is connected with the input end of energizer, the output terminal of signal picker is connected with the input end of wireless exciting acquisition module, wireless exciting acquisition module and the wireless telecommunications of wireless relay module, wireless relay module and the wireless telecommunications of center receiving station, center receiving station is connected with background computer by serial ports; Described energizer adopts the excitation oscillator with magnet base, and excitation oscillator is adsorbed on porcelain strut insulator flange in the bottom by its magnet base; Described signal picker adopts the acceleration transducer with magnet base, and acceleration transducer is adsorbed on porcelain strut insulator flange in the bottom by its magnet base; Described excitation oscillator is connected with the output terminal of wireless exciting acquisition module by shielded signal line, and described acceleration transducer is connected with the input end of wireless exciting acquisition module by shielded signal line.
Described wireless exciting acquisition module comprises external power supply circuit and solar-electricity source circuit, its output terminal is connected with the input end of power selection circuit respectively, the output terminal of power selection circuit is connected with the input end of the first main control MCU, the input/output terminal of the first main control MCU is connected with the input/output terminal of the first wireless communication module, RS485 communication module respectively, the input end of the first main control MCU is connected with the output terminal of signal picker by Acquisition Circuit, and the output terminal of the first main control MCU is connected with the input end of energizer by energizing circuit.
Described wireless relay module comprises the second wireless communication module, the output terminal of the second wireless communication module is connected with the input end of signal input circuit, the output terminal of signal input circuit is connected with the input end of charge voltage translation circuit, the output terminal of charge voltage translation circuit is connected with the input end of digital filter circuit, the output terminal of digital filter circuit is connected with the input end of auto-gain circuit, the output terminal of auto-gain circuit is connected with the input end of A/D change-over circuit, the output terminal of A/D change-over circuit is connected with the input end of the second main control MCU, the output terminal of the second main control MCU respectively with digital filter circuit, auto-gain circuit, the input end of low frequency 433M wireless module is connected, described solar-electricity source circuit comprises solar panels, and its output terminal passes through lightning protection circuit, charging circuit successively to powered battery, and battery, external power supply circuit are all connected with the input end of power selection circuit, and external power supply circuit connects civil power, the input end of described the first main control MCU is connected with FLASH storer, external trigger circuit respectively, and described the first wireless communication module is WIFI module, described the second wireless communication module is WIFI module.
As shown from the above technical solution, the utility model produces vibratory impulse by wireless exciting acquisition module and drives energizer to produce vibration signal, mechanical parameter to porcelain strut insulator gathers, and to the data analysis and the control that gather, can not only accomplish Real-Time Monitoring, the mechanical property progress curve of every porcelain strut insulator of observable simultaneously, in the time that porcelain strut insulator occurs that damage or physical strength drop to below early warning value, can be caught by native system in time, in time alert notice staff, thus the generation of accident avoided.The utility model will thoroughly be avoided human operational error, false retrieval, the undetected false judgment causing, and improves the safe operation degree of electrical network; And the potential safety hazard that adopts radio network technique to avoid field wiring to bring, without taking human resources, has improved work efficiency greatly.
Brief description of the drawings
Fig. 1 is system principle block scheme of the present utility model.
Fig. 2 is mounting structure schematic diagram of the present utility model.
Fig. 3 is wireless exciting acquisition module figure in Fig. 1.
Fig. 4 is the circuit block diagram of wireless relay module in Fig. 1.
In figure, sequence number is: excitation oscillator 1, acceleration transducer 2, wireless exciting acquisition module 3, wireless relay module 4, center receiving station 5, background computer 6, shielded signal line 7, porcelain strut insulator 8.
Embodiment
Porcelain strut insulator machine performance on-line monitoring system, comprise the energizer and the signal picker that are adsorbed on porcelain strut insulator 8 flange in the bottom, the output terminal of wireless exciting acquisition module 3 is connected with the input end of energizer, the output terminal of signal picker is connected with the input end of wireless exciting acquisition module 3, wireless exciting acquisition module 3 and 4 wireless telecommunications of wireless relay module, wireless relay module 4 and 5 wireless telecommunications of center receiving station, center receiving station 5 is connected with background computer 6 by serial ports, as shown in Figure 1.Wireless exciting acquisition module 3 adopts solar powered and mains-supplied pattern, and wireless exciting acquisition module 3 real-time workings, gather as required, and each wireless exciting acquisition module 3 has the mark of its unique coded address as porcelain strut insulator 8.
As shown in Figure 2, described energizer adopts the excitation oscillator 1 with magnet base, and excitation oscillator 1 is adsorbed on porcelain strut insulator 8 flange in the bottom by its magnet base; Described signal picker adopts the acceleration transducer 2 with magnet base, and acceleration transducer 2 is adsorbed on porcelain strut insulator 8 flange in the bottom by its magnet base; Described excitation oscillator 1 is connected with the output terminal of wireless exciting acquisition module 3 by shielded signal line 7, and described acceleration transducer 2 is connected with the input end of wireless exciting acquisition module 3 by shielded signal line 7.Described wireless exciting acquisition module 3 is arranged on porcelain strut insulator 8 place frameworks and is positioned at the below of porcelain strut insulator 8, and described wireless relay module 4 is arranged on porcelain strut insulator 8 place frameworks and is positioned at the below of wireless exciting acquisition module 3.Because the wireless telecommunications coverage of wireless exciting acquisition module 3 is 100 meters of left and right, so wireless relay module 4 is fixed on from wireless exciting acquisition module 3 at a distance of 100 meters with in interior scope, the wireless telecommunications coverage of wireless relay module 4,1200 meters of left and right, can cover whole transformer station.Center receiving station 5 receives the data of wireless exciting acquisition module 3 by wireless relay module 4, be arranged on outdoor applicable position, and be connected on background computer 6 by RS485 interface, on background computer 6, just can receive the data of wireless exciting acquisition module 3, realize wireless receiving and the control of data by operation background computer 6.Wireless relay module 4 is fixed on porcelain strut insulator 8 frameworks, is responsible for receiving data and the coded address of wireless exciting acquisition module 3, and by data and coded address teletransmission to center receiving station 5.In order effectively to transmit data, reduce data collision, each wireless relay module 4 is in charge of 32 wireless exciting acquisition modules 3, and the transmission range of wireless relay module 4 is greater than 1200 meters; The receiving range of described center receiving station 5 is greater than 1200 meters; Described the first wireless communication module communication distance is greater than 100 meters.
As shown in Figure 3, described wireless exciting acquisition module 3 comprises external power supply circuit and solar-electricity source circuit, its output terminal is connected with the input end of power selection circuit respectively, the output terminal of power selection circuit is connected with the input end of the first main control MCU, the input/output terminal of the first main control MCU is connected with the input/output terminal of the first wireless communication module, RS485 communication module respectively, the input end of the first main control MCU is connected with the output terminal of signal picker by Acquisition Circuit, and the output terminal of the first main control MCU is connected with the input end of energizer by energizing circuit.Described solar-electricity source circuit comprises solar panels, and its output terminal passes through lightning protection circuit, charging circuit successively to powered battery, and battery, external power supply circuit are all connected with the input end of power selection circuit, and external power supply circuit connects civil power; The input end of described the first main control MCU is connected with FLASH storer, external trigger circuit respectively, and described the first wireless communication module is WIFI module.Charge voltage translation circuit: converting the signal of sensor to voltage signal and being enlarged into rear class processing provides preparation.The utility model adopts dual power supply, when, solar-electricity source circuit poor in weather condition cannot meet condition of power supply, can connect civil power by external power supply circuit and power.
As shown in Figure 4, described wireless relay module 4 comprises the second wireless communication module, the output terminal of the second wireless communication module is connected with the input end of signal input circuit, the output terminal of signal input circuit is connected with the input end of charge voltage translation circuit, the output terminal of charge voltage translation circuit is connected with the input end of digital filter circuit, the output terminal of digital filter circuit is connected with the input end of auto-gain circuit, the output terminal of auto-gain circuit is connected with the input end of A/D change-over circuit, the output terminal of A/D change-over circuit is connected with the input end of the second main control MCU, the output terminal of the second main control MCU respectively with digital filter circuit, auto-gain circuit, the input end of low frequency 433M wireless module is connected, described the second wireless communication module is WIFI module.Digital filter circuit is made up of high pass, low pass, bandpass filter, and object is filtering interference signals; Auto-gain circuit is adjusted automatic gain by calculating, ensures that output signal maintains 2V, not controlled by the power of input signal.
In the time of work, first, wireless exciting acquisition module 3 produces vibratory impulse, carrying out signal through power amplifier amplifies after processing, drive energizer to produce vibration signal, this vibration signal is applied on tested porcelain strut insulator 8, makes tested porcelain strut insulator 8 that extensional vibration occur; Secondly, signal picker receives the vibration echoed signal of tested porcelain strut insulator 8, and deliver to wireless exciting acquisition module 3 and gather, wireless exciting acquisition module 3 is converted into digital signal and sends data to wireless relay module 4 by the first wireless communication module after signal is processed; Again, wireless relay module 4 receives the data that wireless exciting acquisition module 3 sends, and forwards the data to center receiving station 5; Then, center receiving station 5 receives the data that the wireless relay module 4 in grouping sends, and exports data to background computer 6 by serial ports; Finally, background computer 6 deposits the data of the porcelain strut insulator of reception 8 in background data base, and by analyzing and processing, in the time that data exceed warning value, controlling warning system reports to the police, and notify staff, can carry out at any time data acquisition, consult historical data, can carry out Data Comparison by function menu, analyze the mechanical property progress curve of porcelain strut insulator 8, and can realize arbitrarily by background computer 6 the collection control of front end simultaneously.
In sum, the utility model produces vibratory impulse by wireless exciting acquisition module 3 and drives energizer to produce vibration signal, mechanical parameter to porcelain strut insulator 8 gathers, and to the data analysis and the control that gather, can not only accomplish Real-Time Monitoring, the mechanical property progress curve of every porcelain strut insulator of observable 8 simultaneously, in the time that porcelain strut insulator 8 occurs that damage or physical strength drop to below early warning value, can be caught by native system in time, in time alert notice staff, thus the generation of accident avoided.The utility model will thoroughly be avoided human operational error, false retrieval, the undetected false judgment causing, and improves the safe operation degree of electrical network; And the potential safety hazard that adopts radio network technique to avoid field wiring to bring, without taking human resources, has improved work efficiency greatly; By vibroacoustics principle, machine performance and development trend thereof that can Real-Time Monitoring porcelain strut insulator, the characteristic of nearly all good and bad porcelain strut insulator can reflect, thereby can significantly distinguish judgement, can detect the defects such as all interior external crack of porcelain insulator body, mechanical property reduction or forfeiture, recall rate approaches 100%.
Claims (6)
1. porcelain strut insulator machine performance on-line monitoring system, it is characterized in that: comprise the energizer and the signal picker that are adsorbed on porcelain strut insulator (8) flange in the bottom, the output terminal of wireless exciting acquisition module (3) is connected with the input end of energizer, the output terminal of signal picker is connected with the input end of wireless exciting acquisition module (3), wireless exciting acquisition module (3) and wireless relay module (4) wireless telecommunications, wireless relay module (4) and center receiving station (5) wireless telecommunications, center receiving station (5) is connected with background computer (6) by serial ports.
2. porcelain strut insulator machine performance on-line monitoring system according to claim 1, it is characterized in that: described energizer adopts the excitation oscillator (1) with magnet base, excitation oscillator (1) is adsorbed on porcelain strut insulator (8) flange in the bottom by its magnet base; Described signal picker adopts the acceleration transducer (2) with magnet base, and acceleration transducer (2) is adsorbed on porcelain strut insulator (8) flange in the bottom by its magnet base; Described excitation oscillator (1) is connected with the output terminal of wireless exciting acquisition module (3) by shielded signal line (7), and described acceleration transducer (2) is connected with the input end of wireless exciting acquisition module (3) by shielded signal line (7).
3. porcelain strut insulator machine performance on-line monitoring system according to claim 1, it is characterized in that: described wireless exciting acquisition module (3) comprises external power supply circuit and solar-electricity source circuit, its output terminal is connected with the input end of power selection circuit respectively, the output terminal of power selection circuit is connected with the input end of the first main control MCU, the input/output terminal of the first main control MCU respectively with the first wireless communication module, the input/output terminal of RS485 communication module is connected, the input end of the first main control MCU is connected with the output terminal of signal picker by Acquisition Circuit, the output terminal of the first main control MCU is connected with the input end of energizer by energizing circuit.
4. porcelain strut insulator machine performance on-line monitoring system according to claim 1, it is characterized in that: described wireless relay module (4) comprises the second wireless communication module, the output terminal of the second wireless communication module is connected with the input end of signal input circuit, the output terminal of signal input circuit is connected with the input end of charge voltage translation circuit, the output terminal of charge voltage translation circuit is connected with the input end of digital filter circuit, the output terminal of digital filter circuit is connected with the input end of auto-gain circuit, the output terminal of auto-gain circuit is connected with the input end of A/D change-over circuit, the output terminal of A/D change-over circuit is connected with the input end of the second main control MCU, the output terminal of the second main control MCU respectively with digital filter circuit, auto-gain circuit, the input end of low frequency 433M wireless module is connected.
5. porcelain strut insulator machine performance on-line monitoring system according to claim 3, it is characterized in that: described solar-electricity source circuit comprises solar panels, its output terminal passes through lightning protection circuit, charging circuit successively to powered battery, battery, external power supply circuit are all connected with the input end of power selection circuit, and external power supply circuit connects civil power; The input end of described the first main control MCU is connected with FLASH storer, external trigger circuit respectively, and described the first wireless communication module is WIFI module.
6. porcelain strut insulator machine performance on-line monitoring system according to claim 4, is characterized in that: described the second wireless communication module is WIFI module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420133723.4U CN203838113U (en) | 2014-03-24 | 2014-03-24 | System for on-line monitoring of mechanical states of ceramic post insulators |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420133723.4U CN203838113U (en) | 2014-03-24 | 2014-03-24 | System for on-line monitoring of mechanical states of ceramic post insulators |
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| Publication Number | Publication Date |
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| CN203838113U true CN203838113U (en) | 2014-09-17 |
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| CN201420133723.4U Expired - Fee Related CN203838113U (en) | 2014-03-24 | 2014-03-24 | System for on-line monitoring of mechanical states of ceramic post insulators |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103954686A (en) * | 2014-03-24 | 2014-07-30 | 国家电网公司 | Porcelain post insulator mechanical state online monitoring system and monitoring method |
| CN107607033A (en) * | 2017-10-27 | 2018-01-19 | 国家电网公司 | Porcelain strut insulator Machinery State Monitoring System |
-
2014
- 2014-03-24 CN CN201420133723.4U patent/CN203838113U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103954686A (en) * | 2014-03-24 | 2014-07-30 | 国家电网公司 | Porcelain post insulator mechanical state online monitoring system and monitoring method |
| CN107607033A (en) * | 2017-10-27 | 2018-01-19 | 国家电网公司 | Porcelain strut insulator Machinery State Monitoring System |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140917 Termination date: 20200324 |
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| CF01 | Termination of patent right due to non-payment of annual fee |