CN201903411U - Power equipment temperature online monitoring system based on fiber bragg grating temperature sensor - Google Patents
Power equipment temperature online monitoring system based on fiber bragg grating temperature sensor Download PDFInfo
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- CN201903411U CN201903411U CN2010206449789U CN201020644978U CN201903411U CN 201903411 U CN201903411 U CN 201903411U CN 2010206449789 U CN2010206449789 U CN 2010206449789U CN 201020644978 U CN201020644978 U CN 201020644978U CN 201903411 U CN201903411 U CN 201903411U
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- temperature sensor
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- online monitoring
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 20
- 239000000835 fiber Substances 0.000 title abstract description 13
- 230000005540 biological transmission Effects 0.000 claims abstract description 9
- 238000004891 communication Methods 0.000 claims description 6
- 230000003287 optical effect Effects 0.000 abstract description 2
- 230000010365 information processing Effects 0.000 abstract 3
- 230000007935 neutral effect Effects 0.000 abstract 1
- 238000012805 post-processing Methods 0.000 abstract 1
- 238000009529 body temperature measurement Methods 0.000 description 5
- 239000013307 optical fiber Substances 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
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- Measuring Temperature Or Quantity Of Heat (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The utility model discloses a power equipment temperature online monitoring system based on a fiber bragg grating temperature sensor, which comprises an information processing system and the fiber bragg grating temperature sensor, wherein the information processing system is used for performing post processing of received data, and the fiber bragg grating temperature sensor is mounted on the surface of the power equipment with a temperature to be detected. An output end of the fiber bragg grating temperature sensor is connected with an online temperature analyzer used for demodulating and analyzing a signal via a transmission optical cable, and an output end of the online temperature analyzer is connected with the information processing system. The power equipment temperature online monitoring system based on the fiber bragg grating temperature sensor is high in use reliability, the signal transmitted by the sensor does not generate drifting deviation, and the sensor is electrically neutral and safe in use.
Description
Technical field
The utility model belongs to and relates to a kind of power equipment temperature online monitoring system, particularly a kind of power equipment temperature online monitoring system based on fiber-optical grating temperature sensor.
Background technology
Power system device has characteristics such as complex structure, high-voltage great-current, strong electromagnetic, measuring point are many, and cause its temperature measurement on-line to be had relatively high expectations: (1) temperature point place often has high pressure, requires temperature measurement equipment and signal to export and has good insulation; (2) the temperature point place often has big electric current and passes through, and follows strong electromagnetic, requires temperature measurement equipment to have very strong antijamming capability; (3) the temperature point place may be in semi-enclosed space, requires temperature measurement equipment to have strong dirigibility in installation and transmission course; (4) temperature point is many, requires temperature measurement equipment can carry out the distributed group net mode and measures.The temperature sensor that uses in the existing power device temperature on-line monitoring system, usually employing analog quantity mode is measured and is transmitted, failure rate height in use, can not stably satisfy above-mentioned requirements, and traditional sensor produces deviation of signal because of the analog quantity drift easily, in addition, sensor output electric signal, charged dangerous.
Summary of the invention
In order to solve the aforementioned problems in the prior, the utility model provides a kind of power equipment temperature online monitoring system based on fiber-optical grating temperature sensor, and its dependability height, that the sensor transmissions signal can not produce drift bias, sensor is not charged, safe in utilization.
For realizing the purpose of this utility model, adopt following technical scheme:
Power equipment temperature online monitoring system based on fiber-optical grating temperature sensor, comprise and carry out the information handling system of post-processed receiving data, described power equipment temperature online monitoring system also comprises and is installed in the fiber-optical grating temperature sensor for the treatment of thermometric power equipment surface, the output terminal of this fiber-optical grating temperature sensor is connected with the temperature online analyser that signal is carried out demodulation, analysis by transmission cable, and the output terminal of described temperature online analyser is connected with described information handling system.Described information handling system is used to carry out post-processed work such as data recording, tracing analysis, alarm decision, report generation.
Further, described power equipment temperature online monitoring system also comprises GPRS data communication module, remote monitoring center, and described information handling system is connected with remote monitoring center with wireless mode by this GPRS data communication module.
Further, the output terminal of described temperature online analyser is connected with information handling system by RS232 interface or USB or Ethernet.
Preferably, described information handling system comprises industrial computer, audible-visual annunciator, fire alarm display disc, printer.
The beneficial effects of the utility model are: (1) adopts optical fiber to carry out signal transmission, dependability height; (2) fiber-optic grating sensor Transmission Fibers signal can not produce the analog quantity drift bias; (3) sensor is not charged, safe in utilization.
Description of drawings
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.
Fig. 1 is the structural representation of the utility model embodiment.
Embodiment
With reference to shown in Figure 1, power equipment temperature online monitoring system based on fiber-optical grating temperature sensor, comprise and carry out the information handling system 1 of post-processed receiving data, described power equipment temperature online monitoring system also comprises and is installed in the fiber-optical grating temperature sensor 2 for the treatment of thermometric power equipment surface, the output terminal of this fiber-optical grating temperature sensor 2 is connected with the temperature online analyser 3 that signal is carried out demodulation, analysis by transmission cable, and the output terminal of described temperature online analyser 3 is connected with described information handling system 1.Described information handling system 1 is used to carry out post-processed work such as data recording, tracing analysis, alarm decision, report generation.Described fiber-optical grating temperature sensor 2 is positioned at measure field, and described temperature online analyser 3, information handling system 1 are positioned at the pulpit.
Described power equipment temperature online monitoring system also comprises GPRS data communication module, remote monitoring center, and described information handling system is connected with remote monitoring center with wireless mode by this GPRS data communication module.
In the present embodiment, the output terminal of described temperature online analyser 3 is connected with information handling system 1 by Ethernet, and in addition, connected mode can also be RS232 interface or USB.
Described information handling system 1 comprises industrial computer, audible-visual annunciator, fire alarm display disc, printer.
Fiber-optical grating temperature sensor is a temperature sensitivity of utilizing fiber grating, and the reflection wavelength of fiber grating and temperature have linear relationship and the temperature sensors of high precision of making, and can be used for direct pick-up temperature and strain and realization other the many physical quantitys relevant with temperature and strain and the indirect measurement of chemistry amount.Fiber-optical grating temperature sensor is often realized by directly make a plurality of gratings on quartzy single-mode fiber, can connect into the grating sensing chain behind packaging protection, can easily realize the unification of sensor and transmission line, and installation and transmission are very simple.Fiber-optical grating temperature sensor is except having the anti-electromagnetism of ordinary optic fibre sensor, anticorrosive, high temperature resistant, in light weight, advantage such as volume is little, and also have following unique advantage: sonde configuration is simple, and size is little, is easy to and the optical fiber coupling, and coupling loss is little; Belong to the wavelength-modulated type, antijamming capability is strong; Collect sensing and be transmitted in one and have stronger multiplexing capacity, be easy to constitute sensing network; Measuring object is extensive, is easy to realize the multiparameter sensing measurement.Just because of these unique advantages, make fiber grating become at present and have most development prospect, one of the most representative fiber optic passive device, its application is expansion day by day also.
Present embodiment is to use closed optical fiber mode to carry out the signal transmission owing to adopt above-mentioned fiber-optical grating temperature sensor, therefore bears dirty, oil resistant the reliability height; Fiber-optical grating temperature sensor is that wavelength is detected rather than to intensity detection, therefore avoids traditional sensors to adopt the analog quantity mode to measure and transmits the deviation of signal that brings; Fiber-optical grating temperature sensor adopts pure optical method for measuring, and measure field is not charged, and is safe in utilization.
Claims (4)
1. based on the power equipment temperature online monitoring system of fiber-optical grating temperature sensor, comprise and carry out the information handling system of post-processed receiving data, it is characterized in that: described power equipment temperature online monitoring system also comprises and is installed in the fiber-optical grating temperature sensor for the treatment of thermometric power equipment surface, the output terminal of this fiber-optical grating temperature sensor is connected with the temperature online analyser that signal is carried out demodulation, analysis by transmission cable, and the output terminal of described temperature online analyser is connected with described information handling system.
2. the power equipment temperature online monitoring system based on fiber-optical grating temperature sensor as claimed in claim 1, it is characterized in that: described power equipment temperature online monitoring system also comprises GPRS data communication module, remote monitoring center, and described information handling system is connected with remote monitoring center with wireless mode by this GPRS data communication module.
3. the power equipment temperature online monitoring system based on fiber-optical grating temperature sensor as claimed in claim 1 or 2 is characterized in that: the output terminal of described temperature online analyser passes through RS232 interface or USB or Ethernet and is connected with information handling system.
4. the power equipment temperature online monitoring system based on fiber-optical grating temperature sensor as claimed in claim 1 is characterized in that: described information handling system comprises industrial computer, audible-visual annunciator, fire alarm display disc and printer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206449789U CN201903411U (en) | 2010-12-07 | 2010-12-07 | Power equipment temperature online monitoring system based on fiber bragg grating temperature sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206449789U CN201903411U (en) | 2010-12-07 | 2010-12-07 | Power equipment temperature online monitoring system based on fiber bragg grating temperature sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201903411U true CN201903411U (en) | 2011-07-20 |
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| CN2010206449789U Expired - Lifetime CN201903411U (en) | 2010-12-07 | 2010-12-07 | Power equipment temperature online monitoring system based on fiber bragg grating temperature sensor |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102944801A (en) * | 2012-12-10 | 2013-02-27 | 天津亿利科能源科技发展股份有限公司 | Online monitoring system for carrying capacity of cable |
| CN103090908A (en) * | 2011-11-05 | 2013-05-08 | 国家电网公司 | Converting station tubular busbar on-line monitoring system |
| CN103728048A (en) * | 2013-11-15 | 2014-04-16 | 成都市宏山科技有限公司 | Optical fiber sensing temperature detection device for bus connector |
| CN105469527A (en) * | 2016-01-13 | 2016-04-06 | 上海腾盛智能交通技术有限公司 | Multisensor-based fire temperature measurement system |
| CN109540330A (en) * | 2018-11-01 | 2019-03-29 | 国网宁夏电力有限公司检修公司 | Reactor on-line monitoring method based on grating thermometric |
| CN111105886A (en) * | 2019-12-18 | 2020-05-05 | 岭东核电有限公司 | Calibration-free temperature measurement method and device in strong radiation environment |
-
2010
- 2010-12-07 CN CN2010206449789U patent/CN201903411U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103090908A (en) * | 2011-11-05 | 2013-05-08 | 国家电网公司 | Converting station tubular busbar on-line monitoring system |
| CN102944801A (en) * | 2012-12-10 | 2013-02-27 | 天津亿利科能源科技发展股份有限公司 | Online monitoring system for carrying capacity of cable |
| CN103728048A (en) * | 2013-11-15 | 2014-04-16 | 成都市宏山科技有限公司 | Optical fiber sensing temperature detection device for bus connector |
| CN105469527A (en) * | 2016-01-13 | 2016-04-06 | 上海腾盛智能交通技术有限公司 | Multisensor-based fire temperature measurement system |
| CN109540330A (en) * | 2018-11-01 | 2019-03-29 | 国网宁夏电力有限公司检修公司 | Reactor on-line monitoring method based on grating thermometric |
| CN111105886A (en) * | 2019-12-18 | 2020-05-05 | 岭东核电有限公司 | Calibration-free temperature measurement method and device in strong radiation environment |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110720 |