CN102928740B - Intelligent collection type fault diagnosis and In-Line Temperature Measure System - Google Patents
Intelligent collection type fault diagnosis and In-Line Temperature Measure System Download PDFInfo
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- CN102928740B CN102928740B CN201210438261.2A CN201210438261A CN102928740B CN 102928740 B CN102928740 B CN 102928740B CN 201210438261 A CN201210438261 A CN 201210438261A CN 102928740 B CN102928740 B CN 102928740B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02B90/20—Smart grids as enabling technology in buildings sector
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
- Y04S10/52—Outage or fault management, e.g. fault detection or location
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/124—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wired telecommunication networks or data transmission busses
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Abstract
The present invention relates to a kind of intelligent collection type fault diagnosis and In-Line Temperature Measure System, a total power supply place is provided with in test zone, optical fiber composite low-voltage cable passes into different user end from this total power supply place respectively, a smart set monitor supervision platform is provided with in described total power supply place, this smart set monitor supervision platform connects the first host computer and the second host computer respectively, the first described host computer connects fault diagnosis main frame, second host computer connects temperature measurement on-line main frame, Fiber connection in described fault diagnosis main frame and optical fiber composite low-voltage cable, described temperature measurement on-line main frame is connected with temperature-measuring optical fiber, this temperature-measuring optical fiber is laid in the surface of optical fiber composite low-voltage cable.The device of two kinds of difference in functionalitys concentrates in same monitor supervision platform by this intelligent platform, cable temperature on-line monitoring and Cable's Fault real-time judge in test zone inner fiber composite low-voltage cable can be completed in same platform, there is the advantage of intelligence advance and economic and practical.
Description
Technical field
The present invention relates to power transmission network, be related specifically to for the intelligent platform of transmitting electricity and information network is monitored, this intelligent platform has fault diagnosis and temperature measurement on-line function simultaneously.
Background technology
In recent years, with the quick growth of China economy, the developing rapidly and the intelligentized propelling of electrical network of electrical network, high-rate information transmission passage based on optical fiber communication is formed, but this result also in the continuous expansion of power telecom network scale, network structure increasingly sophisticated, power communication basic resource can not be utilized effectively, and seriously constrains the development of intelligent adapted electricity.
Fiber entering household is the inherent requirement of development intelligent grid, and State Grid Corporation of China is carrying forward vigorously power optical fiber and to register one's residence engineering construction.Traditional fiber entering household FTTH(Fiber to the home) high cost that scheme is laid at user side, make electrical network almost nil in the optical fiber rate of user side.Optical fiber composite low-voltage cable OPLC(Optical fiber composite low-voltages cable) will the preferred option of smart power grid user incoming end be become, be intelligent grid realize user interactions important channel, be the concentrated reflection of the interactive feature of intelligent grid.
In PFTTH (power optical fiber is to family) the network cable fault handling of reality, traditional OTDR(optical time domain reflectometer) requirement of real time on-line monitoring of Access Network multiple branch circuit, unidirectional high loss cannot be met, usually occur incuring loss through delay accident treatment because geographic position, trouble spot cannot be found quickly and accurately, cause losing situation about increasing.Meanwhile, OPLC cable has the advantages that distributed network is wide, leap geographic range is large, fault is sporadic by force, Daily Round Check difficulty is large, disaster loss is large and Resuming agent is high.Therefore, how real time on-line monitoring optical cable and cable running status, judge fast, intuitively, exactly and find the geographic position of PFTTH network cable and transmission cable trouble spot just to become the key point of OPLC fault diagnosis and on-line temperature monitoring, conscientiously realizing the integrated management to transport network resources.
Summary of the invention
The object of the invention is to the deficiency overcoming the existence of above-mentioned prior art, a kind of novel intelligent collection type fault diagnosis and In-Line Temperature Measure System are provided.Intelligent platform of the present invention wants the fault diagnosis that can realize optical fiber composite low-voltage cable OPLC and temperature measurement on-line function, and can be integrated into same monitor supervision platform come on realize this monitoring.
For achieving the above object, technical scheme provided by the invention is as follows.
Described intelligent collection type fault diagnosis and In-Line Temperature Measure System comprise: be first provided with a total place that powers in test zone, optical fiber composite low-voltage cable passes into different user end from described total power supply place respectively; A smart set monitor supervision platform is provided with in described total power supply place, described smart set monitor supervision platform connects the first host computer and the second host computer respectively, the first described host computer connects fault diagnosis main frame, and the second host computer connects temperature measurement on-line main frame; Fiber connection in described fault diagnosis main frame and optical fiber composite low-voltage cable; Described temperature measurement on-line main frame is connected with temperature-measuring optical fiber, and described temperature-measuring optical fiber is laid in the surface of optical fiber composite low-voltage cable.
Described fault diagnosis main frame comprises: laser instrument, wavelength division multiplexer, circulator and data processing unit, optical line terminal is connected to wavelength division multiplexer, this wavelength division multiplexer is connected to Optical Distribution Network by trunk optical fiber, light shunt components is provided with in Optical Distribution Network, the light splitting branch road that light shunt components separates to corresponding optical network unit, the shunt optical fiber between each light splitting branch road and optical network unit is provided with a reflecting element respectively by shunt Fiber connection, described wavelength division multiplexer is also connected to a port on circulator in three ports, two other port output terminal of connecting laser and input end of optical splitter respectively of this circulator, described optical splitter is provided with two-way output port, first via output port connects the first photoelectric detection module successively, first signal amplification module and the first data acquisition unit, second road output port connects the second photoelectric detection module successively, secondary signal amplification module and the second data acquisition unit, the output terminal of described first data acquisition unit and the second data acquisition unit is all connected to data processing unit.
Described temperature measurement on-line main frame comprises: pulsed laser, Raman filtering device, hyperchannel switching device, high-frequency low noise photoelectric commutator, high-speed data acquistion system and high-speed data processing unit, the laser that described pulsed laser is launched enters in temperature measuring optical cable through Raman filtering device and hyperchannel switching device, the signal reflected in temperature measuring optical cable transfers in high-frequency low-noise sound photoelectric commutator through Raman filtering device again, the feedback signal through opto-electronic conversion that high-frequency low-noise sound photoelectric commutator exports is connected to high-speed data acquistion system, the output of high-speed data acquistion system is connected to high-speed data processing unit.
The monitoring optical cable be connected with described fault diagnosis main frame is single mode fiber cable, uses band or nylon rope monitoring optical cable to be closely fixed on the optical fiber composite low-voltage cable surface of registering one's residence.
The temperature measuring optical cable be connected with described temperature measurement on-line main frame is multimode optical cable, and described temperature measuring optical cable band or nylon rope are closely fixed on the surface, loop of cable under test, temperature measuring optical cable both as temperature sensing optical cable, simultaneously also as Signal transmissions optical cable.
Described reflecting element can be a wavelength division multiplexer, or an optical filter, or fiber grating.
Based on technique scheme, tool of the present invention has the following advantages: the present invention is the platform of a kind of smart set fault diagnosis and temperature measurement on-line function, it adopts advanced distributed optical fiber temperature measurement technology and optical time domain reflection technology to carry out on-line monitoring to OPLC, make it to the control and measuring respectively of the territory, different districts in same test zone, and adopt same identical monitor supervision platform to complete monitoring, have Intelligent integrated degree high, easy to operate, monitoring is effective advantage in real time.Fully can meet the requirement of OPLC transmission network adapted electricity and fiber-optic communications traffic performance evaluation and management, conscientiously realize the integrated management to transport network resources
Accompanying drawing explanation
Fig. 1 is the anatomical connectivity schematic diagram of intelligent collection type fault diagnosis of the present invention and In-Line Temperature Measure System.
Fig. 2 is the structural representation of the fault diagnosis part in the present invention.
Fig. 3 is the structural representation of the temperature measurement on-line part in the present invention.
Embodiment
We do the present invention with specific embodiment by reference to the accompanying drawings and further elaborate below.
As shown in Figure 1, for intelligent platform of the present invention, as precondition, will set up a total power supply place in test zone, optical fiber composite low-voltage cable passes into different user end respectively from this total power supply place.The present invention is provided with a smart set monitor supervision platform 21 in described total power supply place, this smart set monitor supervision platform connects the first host computer 22 and the second host computer 23 respectively, the first described host computer 22 connects fault diagnosis main frame 24, second host computer 23 connects temperature measurement on-line main frame 25, described fault diagnosis main frame 24 and the Fiber connection in described optical fiber composite low-voltage cable, described temperature measurement on-line main frame 25 is connected with temperature-measuring optical fiber, and this temperature-measuring optical fiber is laid in the surface of described optical fiber composite low-voltage cable.
The first described host computer 22 is provided with the upper software module of the health status of monitoring section optical fiber.Second host computer 23 is provided with the upper software module that the scanning that realizes abnormity point and judgement, warning output function, DTS main frame temperature measurement data gather.
In the present invention, OTDR test is by utilizing emitted light pulse in optical fiber, and the information then returned at OTDR port accepts is carried out.When light pulse is transmitted in optical fiber, can due to the character of optical fiber itself, connector, abutment, bend or other similar event and produce scattering, reflection.Wherein the scattering of a part will turn back in OTDR with reflection.The useful information returned is measured by the detector of OTDR, and they are just as the time on diverse location in optical fiber or curve segment.From transmitting signals to the return signal time used, then determining the speed of light in glass substance, just can calculate distance.
Distributed optical fiber temperature measurement uses the glass core in the optical pulse irradiation optical fiber of a characteristic frequency.Thermometric main frame realizes the monitoring to exterior temperature change by the change of measuring Raman Back Scattering light.In the time domain, utilize OTDR technology, according to light transfer rate in a fiber and the mistiming between incident light and backward Raman scattering light, can different temperature spots be positioned, so just can obtain whole optical fiber along the line on temperature and accurate location.
The monitoring optical cable be connected with described fault diagnosis main frame is single mode fiber cable, uses band or nylon rope that monitoring optical cable is closely fixed on the OPLC cable surface of registering one's residence.
The temperature measuring optical cable be connected with described temperature measurement on-line main frame is multimode optical cable, and described temperature measuring optical cable band or nylon rope are closely fixed on the surface, loop of cable under test, temperature measuring optical cable both as temperature sensing optical cable, simultaneously also as Signal transmissions optical cable.
Fig. 2 is the anatomical connectivity principle schematic of the fault diagnosis part in the present invention.As seen from the figure, have in the optical-fiber network included by described fault diagnosis main frame 24: optical line terminal (OLT) 4, wavelength division multiplexer 3, Optical Distribution Network (ODN) 6 and optical network unit (ONU) 8.Wherein, optical line terminal 4 is connected on wavelength division multiplexer 3, and this wavelength division multiplexer 3 is connected to Optical Distribution Network 6 by trunk optical fiber 5.In Optical Distribution Network 6, be provided with light shunt components, the light splitting branch road that light shunt components separates respectively by shunt Fiber connection on corresponding optical network unit 8.
Judge to reach branch's branch road of breaking down, our shunt optical fiber between each light splitting branch road and optical network unit 8 arranges a reflecting element 7.Reflecting element 7 can be a wavelength division multiplexer, also can be an optical filter, can also choice for use fiber grating.Its effect is reflected back by the monitoring light signal on light splitting branch road, extraction and the analysis of signal is carried out through optical splitter, photoelectric detection module, signal amplification module, data acquisition unit, data processing unit, obtain the reflective information of Mei Zhi branch light path, and then accurately judge and determine fault branch light path.
Above-mentioned wavelength division multiplexer 3 is also connected on circulator 2, and circulator 2 is provided with three ports, and wavelength division multiplexer 3 then connects one of them port.Two other port output terminal of connecting laser 1 and input end of optical splitter 9 respectively of this circulator 2.
Above-mentioned optical splitter 9 is provided with two-way output port, and its first via output port connects the first photoelectric detection module 10, first signal amplification module 11 and the first data acquisition unit 12 successively.And the second road output port connects the second photoelectric detection module 13, secondary signal amplification module 14 and the second data acquisition unit 15 successively.The output terminal of above-mentioned first data acquisition unit 12 and the second data acquisition unit 15 is all connected to data processing unit 16.
Laser instrument 1 injects the monitoring light signal of two kinds of distinct pulse widths and power successively in trunk optical fiber 5, the laser pulse that wherein output pulse width is slightly wide is used for a detection to backscatter signals, and the extremely narrow laser pulse of another kind of output pulse width is used for the detection to reflected signal.Utilize optical splitter 9 that the backscatter signals returned and reflected signal are divided into two paths of signals by splitting ratio in the present invention, wherein first via signal is input in data processing unit 16 through the first photodetector 10, first signal amplification module 11 and the first data acquisition unit 12; Second road signal is input in data processing unit 16 through the second photodetector 13, secondary signal amplification module 14 and the second data acquisition unit 15.
The process of data processing unit 16 pairs of first via signals adopts software filtering algorithm to eliminate faint backscatter signals, by calculating, analyzing the light signal that passive optical network PON is reflected back by the reflecting element often propping up light splitting branch road, thus obtain the position of Mei Zhi branch light path optical network unit and the specifying information of reflected signal, and then judge and determine fault branch light path.Data processing unit 16 pairs of first via signals and the second road signal process successively, have processed after first via signal and result have been stored in the buffer, then processed the second road signal, and then call information output processing result after two-way process.
Judge that the method for light splitting branch road is as follows: in monitoring device, eliminate the impact of loose chrominance signal dorsad, in the relation waveform on each light splitting branch road between reflected signal and transmission range, the corresponding light splitting branch road of each crest.Once often prop up light splitting branch road to occur the situation that crest disappears, then show that this light splitting branch road breaks down, according to corresponding relation, the light splitting branch road broken down can be judged.
Data processing unit 16 adopts progressive mean, software filtering scheduling algorithm to the second road signal, extract the backscatter signals of whole passive optical network line from optical line terminal to optical network unit, to obtain the light loss data message of circuit, remove the light signal be reflected back by the reflecting element of Mei Zhi branch light path, and then judge and locate the trouble spot of optical network line.In backscatter signals and transmission range corresponding relation figure, the weak aggravation of somewhere, one end light loss, figure presents unexpected downslide, then show to break down in this place, and to glide corresponding position according to figure, judges the particular location broken down.The above-mentioned location point utilizing backscatter signals to judge to break down Application comparison in DTS system (temperature-measuring system of distributed fibers) is common, and the patent ZL201020128219.7 of earlier application mentions.
Data processing unit 16 also carries out integration process to the first via signal after process and the second road signal, obtains from optical line terminal 4 to the light loss data message of the whole passive optical network line of optical network unit 8 and reflected signal information.Data processing unit 16 finally exports the concrete light splitting branch road and the particular location of fault on whole optical-fiber network that break down.
The workflow of optical fiber temperature-measurement part: be applied to by temperature measuring optical cable on OPLC cable, by the measurement to cable surface temperature, in conjunction with autonomous current-carrying capacity algorithm, can provide tested cable inner conductor temperature in real time.Optical fiber temperature measurement host, for sending laser signal, detects the light signal returned, and carries out demodulation, signal transacting to this light signal, obtain temperature signal.
As shown in Figure 3, described temperature measurement on-line main frame 25 comprises hyperchannel switching device, Raman Raman filtering device, pulsed laser, high-frequency low noise photoelectric commutator, high-speed data acquistion system, high-speed data processing unit, mainly realizes the collection of Temperature of Power Cables data, process, identification and the functions such as output of reporting to the police.Temperature measuring optical cable both as sensing element, for detecting material state parameter information, again as telecommunication media, for transmission parameter information.The laser that described pulsed laser is launched enters in temperature measuring optical cable through Raman filtering device and hyperchannel switching device, the signal reflected in temperature measuring optical cable transfers in high-frequency low-noise sound photoelectric commutator through Raman filtering device again, through the feedback signal transmission of opto-electronic conversion to high-speed data acquistion system, the Signal transmissions that high-speed data acquistion system gathers is in high speed data processing unit.
To sum up, the present invention adopts advanced distributed optical fiber temperature measurement technology and optical time domain reflection technology to carry out on-line monitoring to OPLC, has Intelligent integrated degree high, easy to operate, and monitoring is effective advantage in real time.
Claims (3)
1. intelligent collection type fault diagnosis and In-Line Temperature Measure System, is characterized in that: be provided with a total power supply place in test zone, optical fiber composite low-voltage cable passes into different user end from described total power supply place respectively; A smart set monitor supervision platform (21) is provided with in described total power supply place, described smart set monitor supervision platform (21) connects the first host computer (22) and the second host computer (23) respectively, described the first host computer (22) connects fault diagnosis main frame (24), and the second host computer (23) connects temperature measurement on-line main frame (25); Described fault diagnosis main frame (24) and the Fiber connection in optical fiber composite low-voltage cable; Described temperature measurement on-line main frame (25) is connected with temperature-measuring optical fiber, and described temperature-measuring optical fiber is laid in the surface of optical fiber composite low-voltage cable;
Described fault diagnosis main frame comprises: laser instrument (1), wavelength division multiplexer (3), circulator (2) and data processing unit (16), optical line terminal (4) is connected to wavelength division multiplexer (3), this wavelength division multiplexer (3) is connected to Optical Distribution Network (6) by trunk optical fiber (5), Optical Distribution Network is provided with light shunt components in (6), the light splitting branch road that light shunt components separates respectively by shunt Fiber connection to corresponding optical network unit (8), shunt optical fiber between each light splitting branch road and optical network unit (8) is provided with a reflecting element (7), described wavelength division multiplexer (3) is also connected to a port in upper three ports of circulator (2), two other port output terminal of connecting laser (1) and input end of optical splitter (9) respectively of this circulator (2), described optical splitter (9) is provided with two-way output port, first via output port connects the first photoelectric detection module (10) successively, first signal amplification module (11) and the first data acquisition unit (12), second road output port connects the second photoelectric detection module (13) successively, secondary signal amplification module (14) and the second data acquisition unit (15), the output terminal of described first data acquisition unit (12) and the second data acquisition unit (15) is all connected to data processing unit (16),
Described temperature measurement on-line main frame comprises: pulsed laser, Raman filtering device, hyperchannel switching device, high-frequency low noise photoelectric commutator, high-speed data acquistion system and high-speed data processing unit, the laser that described pulsed laser is launched enters in temperature measuring optical cable through Raman filtering device and hyperchannel switching device, the signal reflected in temperature measuring optical cable transfers in high-frequency low-noise sound photoelectric commutator through Raman filtering device again, the feedback signal through opto-electronic conversion that high-frequency low-noise sound photoelectric commutator exports is connected to high-speed data acquistion system, the output of high-speed data acquistion system is connected to high-speed data processing unit,
Described reflecting element (7) is a wavelength division multiplexer, or optical filter, or fiber grating.
2.
as claimed in claim 1intelligent collection type fault diagnosis and In-Line Temperature Measure System, is characterized in that: the monitoring optical cable be connected with described fault diagnosis main frame is single mode fiber cable, uses band or nylon rope monitoring optical cable to be closely fixed on the optical fiber composite low-voltage cable surface of registering one's residence.
3.
as claimed in claim 1intelligent collection type fault diagnosis and In-Line Temperature Measure System, it is characterized in that: the temperature measuring optical cable be connected with described temperature measurement on-line main frame is multimode optical cable, described temperature measuring optical cable band or nylon rope are closely fixed on the surface, loop of cable under test, temperature measuring optical cable both as temperature sensing optical cable, simultaneously also as Signal transmissions optical cable.
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| CN103226172A (en) * | 2013-04-02 | 2013-07-31 | 国家电网公司 | Cable ampacity analysis system based on linear temperature-sensitive technology and calculation method for cable ampacity |
| CN103795460B (en) * | 2014-01-06 | 2018-02-02 | 孙麦可 | A kind of fiber optic network supervisory systems |
| CN105758552B (en) * | 2014-07-08 | 2019-06-14 | 国网山东省电力公司青岛供电公司 | A kind of remote fiber cable temperature detection alarm method |
| CN105333973B (en) * | 2015-12-02 | 2017-12-15 | 安徽师范大学 | Raman fiber temperature measuring equipment and its temp measuring method |
| CN118449592B (en) * | 2024-07-05 | 2024-09-03 | 深圳市泽信通信息工程有限公司 | Monitoring device of high-speed optical fiber width terminal equipment |
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