CN202928615U - Transmission tower strain and vibration health status on-line monitoring and remote surveillance system - Google Patents
Transmission tower strain and vibration health status on-line monitoring and remote surveillance system Download PDFInfo
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- CN202928615U CN202928615U CN 201220696697 CN201220696697U CN202928615U CN 202928615 U CN202928615 U CN 202928615U CN 201220696697 CN201220696697 CN 201220696697 CN 201220696697 U CN201220696697 U CN 201220696697U CN 202928615 U CN202928615 U CN 202928615U
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Abstract
The utility model discloses a transmission tower strain and vibration health status on-line monitoring and remote surveillance system comprising a plurality of vibration sensors, strain sensors and wind speed and direction sensors which are arranged on a transmission tower. The vibration sensors are communicated with a lightning isolator which is communicated with an industrial control computer through a vibration signal conditioner. The strain sensors are communicated with the industrial control computer through a 232 serial port. The wind speed and direction sensors are connected with the industrial control computer through an 485 to 232 interface. The industrial control computer is connected with a remote monitoring system through wireless communication. The wind speed and direction sensors, the industrial control computer and the vibration signal conditioner are electrically connected with a controller which is connected with a storage battery. The storage battery is connected with a solar panel. According to transmission tower strain and vibration health status on-line monitoring and remote surveillance system, vibrating wire type strain gauges which are abundantly used in bridge, tunnel and metro projects are employed as strain measuring sensors, the performance is reliable, the price is low, and the system is convenient to popularize and apply. The system has the advantages of simple structure, convenient use and good effects of monitoring and surveillance.
Description
Technical field
The utility model relates to a kind of power automation technology, especially a kind of electric transmission pole tower strain and vibration health status on-line monitoring and Long-Range Surveillance System.
Background technology
At present, electric transmission pole tower is the important conveying electricity facility of electric system, and the electric transmission pole tower trouble free service is to ensure the requisite requirement of electrical network reliable power supply.As a kind of tall and slender structure, that electric transmission pole tower has is elongated, the characteristics of Gao Rou, and it is in the field, wind-engaging, ice and snow or seismic loading, strong or the tower principal post of its vibratory response bears larger compressive stress, perhaps surpasses limit stress, causes electric transmission pole tower fatigue or unstable failure.Along with country puts more effort to power grid construction, various places electric transmission pole tower collapse accident constantly occurs in recent years, needs electric transmission pole tower security to monitor for this reason.
" electric transmission pole tower ambient vibration state on_line monitoring and Wireless Long-range Transmission System " (patent No. ZL 200820184986.2) and Anhui Academy of Electric Power Sciences's " electric transmission pole tower system of condition monitoring " (patent No. ZL 200920142968.2) that Jiangsu electric power experiment al research institute and the Nanjing positive soft project of peace company limited apply for have all only realized on-line monitoring to the electric transmission pole tower vibration parameters, but do not possess on-line vibration mode and strain mode function.
201120133981 of the patent No.s have been carried out on-line monitoring to the electric power pylon strain.
The patent No. 201120133981 adopts the strains of fiber sensor measuring electric transmission pole tower, and with high costs, poor reliability, the strain value temperature influence that records can not truly represent the electric transmission pole tower strain signal greatly.
Summary of the invention
The purpose of this utility model is for overcoming above-mentioned the deficiencies in the prior art, and a kind of electric transmission pole tower strain and vibration health status on-line monitoring and Long-Range Surveillance System are provided, and this System Construction is simple, and is easy to use, monitors and monitor effective.
For achieving the above object, the utility model adopts following technical proposals:
A kind of electric transmission pole tower strain and vibration health status on-line monitoring and Long-Range Surveillance System, comprise the some vibration transducers, strain transducer and the wind speed wind direction sensor that are arranged on electric transmission pole tower, described vibration transducer is communicated by letter with the lightning protection isolator, the lightning protection isolator is communicated by letter with industrial computer through the vibration signal conditioner, strain transducer is communicated by letter with industrial computer through 232 serial ports, and described wind speed wind direction sensor turns 232 interfaces by 485 interfaces and is connected with industrial computer; Described industrial computer is connected with Long-Range Surveillance System by radio communication; Described strain transducer, wind speed wind direction sensor, industrial computer and vibration signal conditioner all are electrically connected to controller, and controller is connected with accumulator, and accumulator is connected with solar panels.
Described vibration transducer and strain transducer are 8 or 4.
Described strain transducer is vibrating string type strain transducer.
Described Long-Range Surveillance System is computing machine.
Vibration transducer in the utility model, strain transducer, wind speed wind direction sensor, lightning protection isolator, vibration signal conditioner, controller are existing hardware device, all can buy in market, do not repeat them here.
In the utility model, vibration and strain monitoring point number have determined number of probes and signal wire length, sensor protection and have fixed etc. directly related with the cost of on-line monitoring system.Obtain maximum electric transmission pole tower oscillation intensity status informations according to minimum monitoring point.Vibration and strain monitoring point must be arranged on electric power pylon oscillation intensity sensitive spot.The utility model adopts 8 vibrations and 8 strain measuring points.Also can be 4 oscillation points and 4 strain measuring points.4 measuring points are placed on two orthogonal horizontal directions of two corner posts of electric transmission pole tower the first tabula face, and other 4 measuring points are placed on two orthogonal horizontal directions of two corner posts of the cross-arm height that hangs power transmission line.
The utility model can be realized the important parameter strain of health status of electric transmission pole tower and vibration data long-term round-the-clock unmannedly gathers, automatically record and be wirelessly transmitted to operation maintenance department of supply line realizes remote monitoring.
The utility model is according to the vibration of monitoring point Real-time Collection and the spectrum analysis of strain signal, adopt the fitting parameter recognition methods can obtain the low order mode of oscillation (vertical 1 rank, horizontal 1 rank and reverse 1 rank) of electric transmission pole tower, and the destruction of electric transmission pole tower depend primarily on above-mentioned lower mode.
The utility model adopt in bridge, tunnel, subway engineering and a large amount of vibrating string extensometer that uses as strain gauge sensors dependable performance, cheap easy to utilize.
The beneficial effects of the utility model are, simple structure is easy to use, monitors and monitor effective.
Description of drawings
Fig. 1 is the utility model systematic schematic diagram;
Fig. 2 is vibration signal conditioner schematic diagram;
Embodiment
Below in conjunction with drawings and Examples, the utility model is further illustrated.
As shown in Figure 1, electric transmission pole tower strain and vibration health status on-line monitoring and Long-Range Surveillance System comprise a plurality of vibration transducers, strain transducer and the wind speed wind direction sensor that are arranged on electric transmission pole tower, and vibration transducer and strain transducer are 8 or 4.Strain transducer is vibrating string type strain transducer.
Vibration transducer is communicated by letter with the lightning protection isolator, and the lightning protection isolator is communicated by letter with industrial computer through the vibration signal conditioner, and strain transducer is communicated by letter with industrial computer through 232 serial ports, and described wind speed wind direction sensor turns 232 interfaces by 485 interfaces and is connected with industrial computer; Described industrial computer is connected with Long-Range Surveillance System by radio communication; Described wind speed wind direction sensor, strain transducer, industrial computer and vibration signal conditioner all are electrically connected to controller, and controller is connected with accumulator, and accumulator is connected with solar panels.Long-Range Surveillance System is computing machine.
As shown in Figure 2, the characteristics of vibration signal conditioner are:
1.8 parallel signal conditioning in road comprises signal amplification, high-pass filtering, low pass anti-aliasing filtering circuit for the little vibration of electric transmission pole tower.Enlargement factor is up to 1000 times.In order to guarantee that each channel gain is accurately identical, separately add the amplifier trimming circuit, this circuit is available circuit, does not repeat them here.
2.8 the high-speed digital signal process chip (DSP) that adopts the parallel USB2.0 data acquisition unit in road realizes the vibration signal data acquisition through conditioning.
Although above-mentionedly by reference to the accompanying drawings embodiment of the present utility model is described; but be not the restriction to the utility model protection domain; one of ordinary skill in the art should be understood that; on the basis of the technical solution of the utility model, those skilled in the art do not need to pay various modifications that creative work can make or distortion still in protection domain of the present utility model.
Claims (4)
1. an electric transmission pole tower strain and vibration health status on-line monitoring and Long-Range Surveillance System, it is characterized in that, comprise the some vibration transducers, strain transducer and the wind speed wind direction sensor that are arranged on electric transmission pole tower, described vibration transducer is communicated by letter with the lightning protection isolator, the lightning protection isolator is communicated by letter with industrial computer through the vibration signal conditioner, strain transducer is communicated by letter with industrial computer through 232 serial ports, and described wind speed wind direction sensor turns 232 interfaces by 485 interfaces and is connected with industrial computer; Described industrial computer is connected with Long-Range Surveillance System by radio communication; Described strain transducer, wind speed wind direction sensor, industrial computer and vibration signal conditioner all are electrically connected to controller, and controller is connected with accumulator, and accumulator is connected with solar panels.
2. the system as claimed in claim 1, is characterized in that, described vibration transducer and strain transducer are 8 or 4.
3. the system as claimed in claim 1, is characterized in that, described strain transducer is vibrating string type strain transducer.
4. the system as claimed in claim 1, is characterized in that, described Long-Range Surveillance System is computing machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220696697 CN202928615U (en) | 2012-12-14 | 2012-12-14 | Transmission tower strain and vibration health status on-line monitoring and remote surveillance system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220696697 CN202928615U (en) | 2012-12-14 | 2012-12-14 | Transmission tower strain and vibration health status on-line monitoring and remote surveillance system |
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| CN202928615U true CN202928615U (en) | 2013-05-08 |
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| CN 201220696697 Expired - Fee Related CN202928615U (en) | 2012-12-14 | 2012-12-14 | Transmission tower strain and vibration health status on-line monitoring and remote surveillance system |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105136348A (en) * | 2015-09-11 | 2015-12-09 | 云南电网有限责任公司电力科学研究院 | Power transmission iron tower stress online monitoring system |
| CN105371743A (en) * | 2015-10-19 | 2016-03-02 | 华南理工大学 | Iron tower stress energy-efficient monitoring device and method based on single-chip microcomputer |
| CN106017895A (en) * | 2016-07-01 | 2016-10-12 | 苏州东菱振动试验仪器有限公司 | Early warning mechanism and early warning method for wind generation set |
| CN106404071A (en) * | 2016-10-28 | 2017-02-15 | 国网四川省电力公司电力科学研究院 | Online transmission line tower state monitoring device and detection method thereof |
| CN106768061A (en) * | 2017-01-04 | 2017-05-31 | 广西电网有限责任公司电力科学研究院 | A kind of shaft tower monitoring system |
| CN106885602A (en) * | 2017-01-17 | 2017-06-23 | 广西电网有限责任公司电力科学研究院 | Transmission tower dynamic response monitoring system and its application under a kind of wind action |
| CN107121250A (en) * | 2017-04-27 | 2017-09-01 | 武汉大学 | A kind of power transmission tower and power transmission line mode Analysis of Internal Resonance system and method |
| CN107300412A (en) * | 2017-06-15 | 2017-10-27 | 贵州电网有限责任公司电力科学研究院 | A kind of method of measurement bar tower vibrations mode |
| CN108548568A (en) * | 2018-07-13 | 2018-09-18 | 广东电网有限责任公司江门供电局 | A kind of transmission tower on-line monitoring system with load-bearing monitor |
-
2012
- 2012-12-14 CN CN 201220696697 patent/CN202928615U/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105136348A (en) * | 2015-09-11 | 2015-12-09 | 云南电网有限责任公司电力科学研究院 | Power transmission iron tower stress online monitoring system |
| CN105371743B (en) * | 2015-10-19 | 2018-09-14 | 华南理工大学 | A kind of energy saving monitoring device of SCM Based steel tower stress and method |
| CN105371743A (en) * | 2015-10-19 | 2016-03-02 | 华南理工大学 | Iron tower stress energy-efficient monitoring device and method based on single-chip microcomputer |
| CN106017895A (en) * | 2016-07-01 | 2016-10-12 | 苏州东菱振动试验仪器有限公司 | Early warning mechanism and early warning method for wind generation set |
| CN106404071A (en) * | 2016-10-28 | 2017-02-15 | 国网四川省电力公司电力科学研究院 | Online transmission line tower state monitoring device and detection method thereof |
| CN106404071B (en) * | 2016-10-28 | 2018-02-13 | 国网四川省电力公司电力科学研究院 | Electric power line pole tower state on_line monitoring device and its detection method |
| CN106768061A (en) * | 2017-01-04 | 2017-05-31 | 广西电网有限责任公司电力科学研究院 | A kind of shaft tower monitoring system |
| CN106885602A (en) * | 2017-01-17 | 2017-06-23 | 广西电网有限责任公司电力科学研究院 | Transmission tower dynamic response monitoring system and its application under a kind of wind action |
| CN107121250A (en) * | 2017-04-27 | 2017-09-01 | 武汉大学 | A kind of power transmission tower and power transmission line mode Analysis of Internal Resonance system and method |
| CN107121250B (en) * | 2017-04-27 | 2019-04-09 | 武汉大学 | A kind of power transmission tower and power transmission line mode Analysis of Internal Resonance system and method |
| CN107300412A (en) * | 2017-06-15 | 2017-10-27 | 贵州电网有限责任公司电力科学研究院 | A kind of method of measurement bar tower vibrations mode |
| CN107300412B (en) * | 2017-06-15 | 2023-09-01 | 贵州电网有限责任公司电力科学研究院 | Method for measuring vibration mode of tower |
| CN108548568A (en) * | 2018-07-13 | 2018-09-18 | 广东电网有限责任公司江门供电局 | A kind of transmission tower on-line monitoring system with load-bearing monitor |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130508 Termination date: 20181214 |