KR20170086235A - Optical line monitoring system - Google Patents
Optical line monitoring system Download PDFInfo
- Publication number
- KR20170086235A KR20170086235A KR1020160005815A KR20160005815A KR20170086235A KR 20170086235 A KR20170086235 A KR 20170086235A KR 1020160005815 A KR1020160005815 A KR 1020160005815A KR 20160005815 A KR20160005815 A KR 20160005815A KR 20170086235 A KR20170086235 A KR 20170086235A
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- South Korea
- Prior art keywords
- optical
- signal
- light
- branching
- wavelength
- Prior art date
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
- H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
- H04B10/0793—Network aspects, e.g. central monitoring of transmission parameters
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
- H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
- H04B10/0795—Performance monitoring; Measurement of transmission parameters
- H04B10/07955—Monitoring or measuring power
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
- H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
- H04B10/0795—Performance monitoring; Measurement of transmission parameters
- H04B10/07957—Monitoring or measuring wavelength
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Optical Communication System (AREA)
Abstract
The present invention relates to an optical line monitoring system for monitoring the state of an optical line due to deterioration, disconnection or short-circuit. The optical line monitoring system includes a plurality of optical splitters (110-1, 110- 2, ..., 110-n) for detecting a characteristic value of light passing through a corresponding optical line from optical signals branched by corresponding optical splitters, (110-1, 110-2, ..., 110-n), and transmits the characteristic values of the light detected by the plurality of signal processing units (200) to the monitoring center (500) A hub 300 and a monitoring center 500 for receiving outputs from the hub 300. The monitoring center 500 monitors the status of the plurality of optical lines using the received characteristic values of the light do.
Description
More particularly, the present invention relates to an optical line monitoring system for measuring the power and / or wavelength of an optical signal passing through an optical patch cord on an optical line and for remotely transmitting and managing the measured data .
Since the optical communication system was introduced, the optical line facility continues to expand, and most of the domestic telecommunication network is in charge. Also, the FTTH of the subscriber line for the smooth provision of broadband communication service is promoted and the FTTH of the communication network is accelerating Recently, there has been an increase in the number of apartments and buildings that introduce fiber to the home (FTTH), which is also called optical fiber in home or optical fiber in home.
Since the optical line is installed in a wide area and is exposed to the natural environment, deterioration due to environmental factors is likely to occur, and the possibility of disconnection or short-circuit of the optical cable due to external impact is also increasing. There is a problem that it can not only affect but also develop into a situation where communication is impossible, and that it takes a long time to recover from a failure.
In order to connect the optical cable and the optical cable, a connector for connecting the optical fiber (optical line) and the optical fiber of the optical cable is connected to both ends of the optical patch. An optical patchcord is used.
In addition, a fiber distribution frame (FDF) is used as a means for distributing optical signals to an assembly building such as an apartment or a building through an optical fiber cable for each generation. In this FDF, And distributes the incoming optical signal to each household.
Accordingly, in order to measure and monitor the power and / or the wavelength of the optical signal flowing through the optical line, the power and / or the power of the optical signal passing through the optical patch cord is measured using an optical patch cord in the FDF installed inside or outside the building, Or wavelengths of the optical line can be monitored by monitoring and managing the deterioration, disconnection, short-circuit, etc. of the optical line. There is a technology described in Patent Document 1 that performs such a function and a product thereof is disclosed in Non-Patent Document 1 have.
However, in Patent Documents 1 and 1, as shown in Fig. 1, optical signal data conversion and transmission means 11-1, 11-2, ..., 11-n, which are constitutions for measuring and monitoring optical power and wavelength, Is directly installed in the optical fiber (optical patch cord), there is a problem in that an optical communication function, which is a basic function of the optical fiber, also fails when an abnormality occurs in the configuration for measuring optical power and wavelength.
Patent Document 1 and Non-Patent Document 1 disclose that an optical power source for the operation of each optical patch cord is separately supplied from the outside to each of a plurality of optical patch cords provided in the FDF, There is a disadvantage in that power supply means such as power supply adapters for the number of power supply units must be installed in the FDF. In the case where a failure occurs in these power supply means, not only the optical power and / This problem is caused by the fact that the optical patch cord of the prior art is an integrated optical analysis function including an optical characteristic analysis function.
SUMMARY OF THE INVENTION The present invention has been made in view of the above problems of the prior art, and it is an object of the present invention to provide an optical module capable of transmitting basic optical signals without supplying a separate external power source, measuring and monitoring the power and / or wavelength of an optical signal flowing through the optical line, Another object of the present invention is to provide an optical line monitoring system capable of continuing the transmission of an optical signal by an optical patch cord even when a failure occurs in an apparatus for measuring the power and / or wavelength of the optical signal.
According to an aspect of the present invention, there is provided an optical line monitoring system comprising: a plurality of optical branching means for branching light transmitted through a plurality of optical lines; A plurality of signal processing means for detecting characteristic values of light passing through the corresponding optical line from the optical signals branched by the corresponding optical branching means among the optical branching means of the plurality of signal processing means, And the monitoring center monitors the state of the plurality of optical lines using the received characteristic value of the light.
Preferably, each of the plurality of signal processing means includes photoelectric conversion means for converting an optical signal branched by the plurality of optical branching means into electric signals, and electric power conversion means for converting electric signals converted by the plurality of photoelectric conversion means into electric signals, Signal conversion means for converting a signal into an optical signal of an original size before the branch and for detecting a characteristic value of light of an optical signal transmitted through each of the plurality of optical lines from the optical signal, And signal analyzing means for analyzing the power of the optical signal transmitted through the optical line from the detected characteristic value of the light and transmitting the result of the power analysis to the monitoring center.
Preferably, the hub further includes a hub for transmitting a result of the power analysis output from the plurality of signal analysis means to the monitoring center in association with identification means for identifying the optical line corresponding to the result of the power analysis, respectively.
Preferably, a wavelength of light passing through the corresponding optical line is detected from an optical signal branched by the corresponding optical branching means among the plurality of optical branching means, corresponding to each of the plurality of optical branching means, And the monitoring center monitors the state of the plurality of optical lines by using one or both of the characteristic value of the received light and the wavelength of the light.
Preferably, each of the plurality of wavelength detecting means includes: an optical variable filter for passing light of a specific wavelength among lights respectively inputted from the plurality of optical branching means under the control of a filter control unit; And photoelectric conversion means for converting the light of the passed wavelength into electric signals respectively.
Preferably, the display device further includes a display device for displaying a power analysis result analyzed by the signal analysis means.
According to the optical line monitoring system of the present invention having the above-described configuration, it is possible to measure the optical characteristics such as the power of the optical signal transmitted through the optical line without interruption of the optical signal transmission, The transmission of the optical signal by the optical patch cord can be continued.
1 is a view showing a configuration of a conventional optical patch cord,
2 is a diagram showing a schematic configuration of an optical line monitoring system according to a preferred embodiment of the present invention,
3 is a view showing a detailed configuration of the photoelectric conversion and power detection unit of FIG. 2,
4 is a diagram showing a configuration of a photoelectric conversion portion according to a modified example of the present invention.
Hereinafter, an optical line monitoring system according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings. 2 is a diagram showing a schematic configuration of an optical line monitoring system according to a preferred embodiment of the present invention.
2, the optical line monitoring system according to a preferred embodiment of the present invention includes a
The
However, the optical patch cord is merely an example, and the plurality of optical splitters 110-1, 110-2, ..., 110-n may be provided directly on optical lines such as optical cables or individual optical fibers.
The
2, one
The
3, the photoelectric conversion and
The
The
The
In analyzing the optical power by the
When the power analysis result of the optical signal is output to the
When the power value of the detected optical signal is smaller than the reference value and there is a problem in the optical communication, the
2, the wired / wireless
The
At this time, the power analysis result of the optical signal for each IP collected in the
The
According to the optical line monitoring system of the present embodiment configured as described above, the power measurement of the optical signal transmitted through the optical patch cord can be performed by measuring the optical characteristics such as the power of the optical signal flowing through the optical line And even when a failure occurs in the device for measuring the power of the optical signal including the power source, the optical signal can be continuously transmitted by the optical patch cord.
In the above embodiment, the monitoring system for monitoring the optical line by measuring the optical power of the optical signal transmitted through each of the plurality of optical patch cords has been described. However, the present invention is limited to the optical line monitoring by measuring the optical power But the optical line may be monitored by measuring the wavelength of the optical signal transmitted through each of the plurality of optical patch cords.
An optical line monitoring system for monitoring an optical line by measuring the wavelength of an optical signal will be described. 4 is a diagram showing a configuration of a photoelectric conversion portion according to a modified example of the present invention.
The optical line monitoring system of the modified example is different from the optical line monitoring system of the embodiment in the structure of the photoelectric conversion unit and the other parts are the same as those of the optical line monitoring system of the embodiment, .
The photoelectric conversion unit 211-1 of the modified example includes an
The optical
More specifically, the
The
The present invention is not limited to the above-described embodiment and modifications, and various changes and modifications are possible within the scope of the present invention.
The above embodiment and the modified examples may be performed separately or in combination.
100 optical branching section
200 signal processor
210 Photoelectric Conversion and Power Detector
211, and 211b,
211a optical variable filter
212 signal conversion unit
213 Signal Analysis Section
230 wired / wireless signal conversion unit
300 hub
500 Monitoring Center
Claims (6)
A plurality of signal processing means provided corresponding to each of the plurality of optical branching means and detecting a characteristic value of light passing through a corresponding optical line from optical signals branched by corresponding optical branching means of the plurality of optical branching means, and,
And a monitoring center for receiving characteristic values of light detected by the plurality of signal processing means,
Wherein the monitoring center monitors a state of the plurality of optical lines by using a characteristic value of the received light.
Wherein each of the plurality of signal processing means comprises:
Photoelectric conversion means for converting the optical signals branched by the plurality of optical branching means into electrical signals,
A signal for converting the electrical signal converted by the plurality of photoelectric conversion means into an optical signal of the original size before the branching and for detecting a characteristic value of light of the optical signal transmitted through each of the plurality of optical lines, Conversion means,
And signal analyzing means for analyzing the power of the optical signal transmitted through the optical line from the characteristic value of the light detected by each of the plurality of signal converting means and transmitting the result of the power analysis to the monitoring center Optical line monitoring system.
Further comprising: a hub for transmitting a result of the power analysis output from the plurality of signal analysis means to the monitoring center in association with identification means for identifying an optical line corresponding to the result of the power analysis, respectively.
A wavelength of light passing through a corresponding optical line from an optical signal branched by a corresponding optical branching unit among the plurality of optical branching units is detected corresponding to each of the plurality of optical branching units and transmitted to the monitoring center Further comprising a plurality of wavelength detecting means,
Wherein the monitoring center monitors the state of the plurality of optical lines using one or both of the characteristic value of the received light and the wavelength of the light.
Wherein the plurality of wavelength detecting means comprises:
An optical variable filter for passing light of a specific wavelength among lights inputted from the plurality of optical branching means under the control of a filter control unit,
And photoelectric conversion means for converting light of a wavelength having passed through the plurality of optical variable filters into electric signals respectively.
And a display device for displaying a power analysis result analyzed by said signal analyzing means.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020160005815A KR20170086235A (en) | 2016-01-18 | 2016-01-18 | Optical line monitoring system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020160005815A KR20170086235A (en) | 2016-01-18 | 2016-01-18 | Optical line monitoring system |
Publications (1)
Publication Number | Publication Date |
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KR20170086235A true KR20170086235A (en) | 2017-07-26 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR1020160005815A KR20170086235A (en) | 2016-01-18 | 2016-01-18 | Optical line monitoring system |
Country Status (1)
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KR (1) | KR20170086235A (en) |
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2016
- 2016-01-18 KR KR1020160005815A patent/KR20170086235A/en not_active Application Discontinuation
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