CN103162860A - Optical fiber temperature measurement system of high voltage distribution cabinet - Google Patents
Optical fiber temperature measurement system of high voltage distribution cabinet Download PDFInfo
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- CN103162860A CN103162860A CN201110412350.5A CN201110412350A CN103162860A CN 103162860 A CN103162860 A CN 103162860A CN 201110412350 A CN201110412350 A CN 201110412350A CN 103162860 A CN103162860 A CN 103162860A
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Abstract
An optical fiber temperature measurement system of a high voltage distribution cabinet comprises a liquid crystal display screen connected with an industrial personal computer, an audible and visual alarm device, an intelligent router and an optical fiber temperature measurement main machine. The intelligent router is connected with a short message alarm device through the Internet. The optical fiber temperature measurement main machine is connected with a 1*2 optical divider through an optical fiber connection box and a single core optical cable. The 1*2 optical divider is connected with an optical path segregator through a connecting line. The optical path segregator is connected with a sensor probe arranged in the distribution cabinet through a multimode optical fiber. Due to adoption of an optical fiber material which is high voltage resistant, electromagnetic interference resistant and good in electrical insulating property and artificial intelligent relative technology, a multipoint temperature measurement and real-time temperature on-line measurement system is developed for the distribution cabinet device, temperature data collection and remote transmission of up to thousands of measurement points can be conducted in every second and the optical fiber temperature measurement system of the high voltage distribution cabinet has the advantage of being accurate in measured data.
Description
Technical field
The present invention relates to the optical fiber temperature measurement system in a kind of high voltage power distributing cabinet, be used for the three-phase isolation switch contact of power distribution cabinet and the real-time online optical fiber thermometric of conducting wire connector.
Background technology
High voltage power distributing cabinet is as the important electric equipment that distributes electric energy, in the equipment During Process of Long-term Operation, the positions such as the switch contact in power distribution cabinet and bus bar junction are because of aging or contact resistance is excessive generates heat, this aging heating is a long-term time-continuing process, what have may continue some months and can display, again because have exposed high pressure in cabinet, temperature monitoring to these heating positions can't be implemented with the way of routine, present coming into operation of a large amount of unattended operation transformer stations particularly, conventional manual inspection method can not be competent at especially.Situation of change owing to temperature under the power distribution cabinet abnormal conditions can not in time being detected finally causes the generation of fire failure, causes inevitable loss.By the real time execution situation of contact temperature in the monitoring power distribution cabinet, in time the temperature information of feedback contact is the effective solution that prevents that effectively the power distribution cabinet accident from occuring.But due to structural limitations narrow and small in power distribution cabinet, can't carry out again conventional temperature survey and artificial inspection measurement, realize that therefore the temperature real time on-line monitoring is the important means that guarantees the high voltage power distributing cabinet safe operation.
Summary of the invention
Problem for the prior art existence, the purpose of this invention is to provide the optical fiber temperature measurement system in a kind of high voltage power distributing cabinet, this system mainly adopts the fibre optic temperature sensor probe contact temperature-measuring of contact, carry out data transmission by temperature sensing optical fiber, avoided because of problems such as high-voltage electromagnetic interference and radio-frequency radiations.Have the characteristics such as easy for installation, that thermometric is accurate, data transmission security is reliable, in time the temperature information of feedback contact, effectively prevent the generation of high voltage power distributing cabinet accident.
to achieve these goals, the technical solution used in the present invention is: the optical fiber temperature measurement system in a kind of high voltage power distributing cabinet, optical fiber temperature measurement system in a kind of high voltage power distributing cabinet, comprise the LCDs that rainy industrial computer is connected, audible-visual annunciator, intelligent router and optical fiber temperature-measurement main frame, wherein intelligent router is connected with Short message alarm by Internet, the optical fiber temperature-measurement main frame is by the optical fiber breakout box, single fiber cable is connected with the 1*2 optical branching device, the 1*2 optical branching device is connected with optical path separator by connecting line, optical path separator is connected with sensor probe in being located at power distribution cabinet by multimode optical fiber.
Described sensor probe 15 is arranged near power distribution cabinet 13 contacts and conducting wire connector.
Described sensor probe is more than one fluorescent optical fiber temperature sensor probe, gathers the temperature information of high voltage power distributing cabinet, and with the temperature information that gathers by the thermometric main frame of Optical Fiber Transmission to master control.Described signal transmission unit, it comprises optical branching device, optical fiber breakout box, optical fiber.Be mainly used in the temperature signal transmission communication.Described signal processing unit mainly comprises the thermometric main frame, it is the method that adopts fluorescence fiber temperature measurement, and its main devices is made of exciting light source part (inspiring exciting light), detecting temperature part (fluorescent probe and coupling fiber), fluorescence signal test section, part of data acquisition.This exciting light source is subjected to voltage controlled oscillator output modulation, and exciting light sends by lens combination and is coupled into optical fiber, by filter plate, some parasitic lights is eliminated, and is divided into some optical fiber and the fluorescent material that is radiated on probe inspires fluorescence through fiber coupler.Fluorescence signal enters reception optical fiber, enter photodetector by fiber coupler and optical filter, to send in pulse modulated pair of reference signal phaselocked loop testing circuit after fluorescence signal amplification and filtering, Single Chip Microcomputer (SCM) system gathers the last stable output of voltage controlled oscillator data is processed, and designs at last virtual instrument and shows by serial ports RS-232 and industrial computer communication.Described industrial computer, it is as the terminal monitoring main frame, the main high-performance industrial control computer that adopts, employing standard RS-232 bus and on-the-spot multichannel optical fiber thermometric main frame consist of bus-network, temperature monitoring, the panalarm that is distributed in on-the-spot each monitoring point carried out unified management and setting, and whole temperature datas is realized unified management.Computing machine has been installed the monitoring software of friendly interface, and monitoring and alarm settings interface are provided, and configures simultaneously active audio amplifier, can realize that for unusual condition local voice is reported to the police and the screen graph caution.
This system is by adopting the fiber optic materials that anti-high-voltage electromagnetic disturbs, electrical insulating property is good and adopting the artificial intelligence correlation technique, going out multi-point temp for the power distribution cabinet equipment development detects and the real time temperature on-line monitoring system, can survey temperature data acquisition and the remote transmission of ten thousand monitoring points of as many as in per second, transmission range can reach several kilometers to tens of kilometer, and its Monitoring Data accurately and have a higher cost performance.
The invention has the beneficial effects as follows:
This system has adopted current advanced person's mechanics of communication, microprocessor technology, digital temperature sensing technology.Low temperature, highfield, wet environment running technology with original creation design.And by adopting fiber optic materials can avoid the powerful electromagnetic interference (EMI) of high-voltage electrical equipment, complete safety data are sent to monitoring terminal.
Description of drawings
Accompanying drawing is structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing, structural principle of the present invention and principle of work are described in further detail.
with reference to accompanying drawing, optical fiber temperature measurement system in a kind of high voltage power distributing cabinet, optical fiber temperature measurement system in a kind of high voltage power distributing cabinet, comprise the LCDs 1 that rainy industrial computer 2 is connected, audible-visual annunciator 5, intelligent router 3 and optical fiber temperature-measurement main frame 6, wherein intelligent router 3 is connected with Short message alarm 4 by Internet, optical fiber temperature-measurement main frame 6 is by the optical fiber breakout box, single fiber cable 9 is connected with 1*2 optical branching device 10, 1*2 optical branching device 10 is connected with optical path separator 12 by connecting line 11, optical path separator 12 is connected by multimode optical fiber 14 sensor probe 15 interior with being located at power distribution cabinet 13.
Described sensor probe 15 is arranged near power distribution cabinet 13 contacts and conducting wire connector.
Described front end temperature signal collection unit is to be made of several fibre optic temperature sensors.Described signal transmission unit comprises optical branching device, optical fiber breakout box, optical fiber.Described signal processing unit comprises the thermometric main frame.Described industrial computer adopts the high-performance industrial control computer.
A plurality of fluorescent optical fiber temperature sensor in this power distribution cabinet are made of sensing probe 15 and connection optical fiber 14, and this sensor probe 15 is arranged near high voltage power distributing cabinet contact and conducting wire connector, gathers the temperature signal of high voltage power distributing cabinet.the fine tail end that connects optical fiber 14 by this sensor probe 15 is connected with the input end of optical branching device 12 in being arranged on power distribution cabinet, the synthetic a branch of main light source of a plurality of light signals is reclaimed, and be connected with the 1*2 optical branching device 10 of power distribution cabinet 13 outsides, the light signal that simultaneously temperature sensor in two power distribution cabinets is detected is merged into a branch of, enter single fiber cable 9 by its output terminal, rear many single fiber cables will monitor a plurality of power distribution cabinets connections by optical fiber breakout box 8 pass through optical fiber breakout box 8 and corresponding multicore main cable 7 continued accesses together, multicore main cable 7 directly is connected with the optical fiber temperature-measurement main frame 6 on backstage, this optical fiber temperature-measurement main frame 6 can gather multichannel light signal simultaneously, after multichannel light signal by 6 pairs of collections of optical fiber temperature-measurement main frame carries out conversion process, data-signal after processing is transferred to backstage industrial computer 2 by the RS-232 communication interface, in 2 pairs of these each power distribution cabinets of backstage industrial computer, the temperature data of monitoring shows, monitoring, as note abnormalities and to realize the temperature signal monitoring by the program software of himself installing, the functions such as demonstration and fault alarm.Carry on this industrial computer 2 the RJ45 interface can with intelligent router 3 wired connections, undertaken communicating by letter in the networking and report to the police to peripheral sending short message by mobile phone by Internet and other computing machine on backstage.
Claims (3)
1. the optical fiber temperature measurement system in a high voltage power distributing cabinet, it is characterized in that, comprise the LCDs (1) that rainy industrial computer (2) is connected, audible-visual annunciator (5), intelligent router (3) and optical fiber temperature-measurement main frame (6), wherein intelligent router (3) is connected with Short message alarm (4) by Internet, optical fiber temperature-measurement main frame (6) is by the optical fiber breakout box, single fiber cable (9) is connected with 1*2 optical branching device (10), 1*2 optical branching device (10) is connected with optical path separator (12) by connecting line (11), optical path separator (12) is connected by multimode optical fiber (14) sensor probe 15 interior with being located at power distribution cabinet (13).
2. the optical fiber temperature measurement system in a kind of high voltage power distributing cabinet according to claim 1, is characterized in that, described sensor probe (15) is arranged near power distribution cabinet (13) contact and conducting wire connector.
3. the optical fiber temperature measurement system in a kind of high voltage power distributing cabinet according to claim 1, is characterized in that, is connected by RS-232 between described industrial computer (2) and optical fiber temperature-measurement main frame (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110412350.5A CN103162860A (en) | 2011-12-13 | 2011-12-13 | Optical fiber temperature measurement system of high voltage distribution cabinet |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110412350.5A CN103162860A (en) | 2011-12-13 | 2011-12-13 | Optical fiber temperature measurement system of high voltage distribution cabinet |
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| Publication Number | Publication Date |
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| CN103162860A true CN103162860A (en) | 2013-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110412350.5A Pending CN103162860A (en) | 2011-12-13 | 2011-12-13 | Optical fiber temperature measurement system of high voltage distribution cabinet |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104215357A (en) * | 2014-07-09 | 2014-12-17 | 武汉轻工大学 | Aquatic product cold chain temperature measurement system and method based on optical fiber sensor |
| CN105070473A (en) * | 2015-08-26 | 2015-11-18 | 国网山东省电力公司淄博供电公司 | Electrified oiling device for distribution transformer |
| CN107941364A (en) * | 2017-12-15 | 2018-04-20 | 中国长江电力股份有限公司 | A kind of generator excitation equipment temperature measuring equipment and method based on the more temperature transducers of infrared, fluorescence optical fiber |
-
2011
- 2011-12-13 CN CN201110412350.5A patent/CN103162860A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104215357A (en) * | 2014-07-09 | 2014-12-17 | 武汉轻工大学 | Aquatic product cold chain temperature measurement system and method based on optical fiber sensor |
| CN105070473A (en) * | 2015-08-26 | 2015-11-18 | 国网山东省电力公司淄博供电公司 | Electrified oiling device for distribution transformer |
| CN107941364A (en) * | 2017-12-15 | 2018-04-20 | 中国长江电力股份有限公司 | A kind of generator excitation equipment temperature measuring equipment and method based on the more temperature transducers of infrared, fluorescence optical fiber |
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| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130619 |