CN109818671A - A kind of control method and system for intelligent light with measurement - Google Patents
A kind of control method and system for intelligent light with measurement Download PDFInfo
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Abstract
The present invention provides a kind of control method and system for intelligent light with measurement, it include: when fibre circuit breaks down or there are when disruption risk, the collected optical power trajectory diagram of optical time domain reflectometer OTDR and non-faulting optical fiber curve comparison are determined the fault point on fibre circuit and abort situation by optical line terminal OLT；Match handover scheme based on preset intelligent light, optical time domain reflectometer OTDR controls the photoswitch OS in the first optical distribution network equipment ODN1 equipment, signal of communication is switched to other non-faulting fibre circuits.The reference curve when present invention works normally collected optical power trajectory diagram and optical fiber compares, determine fault message, optical line terminal OLT starts preset switching prediction scheme, equipment is instructed to change path in time, and the status information of equipment of itself is reported to optical line terminal OLT, realize the fast and safely reliable switching of optic communication signal.
Description
Technical field
The invention belongs to intelligent light to match technical field, and in particular to a kind of with the control method measured and to be for intelligent light
System.
Background technique
In recent years, major way of the electric power optical cable network as powerline network, as optical fiber transmission is logical in electric power
The automatic management level urgent need of application in communication network, magnanimity optical fiber gets a promotion.Currently, optical cable monitoring system can not also be real
The timely monitoring of existing tens of routes will directly influence entire electric system production when electric power optical cable network breaks down
The safety and stability of operation will cause the massive losses of power grid once important link communication is broken down.Wherein, power optical fiber is matched
Important component of the telecommunication net as smart grid power transmission and transformation link, with power industry power supply reliability require it is continuous
It improves, it is desirable that real-time monitoring is carried out to the operation conditions of distribution network and realizes the real-time processing of failure, promotes power generation fortune
Capable managerial ability and electric service are horizontal.
Based on electric power passive optical-fiber network (PON), the characteristics of hierarchical layered, broad covered area, makes power optical fiber power distribution network
Obtaining becomes extremely difficult to the monitoring of distribution.The network structure of PON is made of OLT, ONU and ODN system, and wherein ODN system is
The point-to-multipoint bridge of OLT and ONU is constituted, it is mainly by Optical Distribution Frame, light cross-connecting box, optical wiring case, optical splitter, light separated time
The inactive components such as box and optical cable are constituted, and transmission line is provided between OLT and ONU.The structure of ODN is generally point-to-multipoint,
Its structure can be broadly divided into 4 kinds, i.e. star, tree-like, bus and annular according to connection type difference.Wherein, tree structure is most
Be it is common, since Optical Distribution Frame, light cross-connecting box, optical splitter and optical fiber etc. are placed in field for a long time in ODN, solarization of exposing to wind and rain
It influences, the connector of optical fiber may be made to loosen, situations such as covering of optical fiber falls off, fibercuts, caused under quality of optical fiber communication
Drop even communication disruption, if not only be easy to causeing user's communication disruption without finding in time, also making the maintenance difficulties of system significantly
Increase.It was not only taken a substantial amount of time by artificial maintenance merely, but also satisfied result may not necessarily be obtained.
With being growing for ODN construction scale, resource is more and more, and traditional ODN resource management mode occurs very
The disadvantage that can not mostly coordinate.When user network breaks down, just start to repair this section of ODN network, it is this passively
O&M mode often will cause the decline of whole network quality.
Therefore, how realizing the intelligence of ODN and establishing perfect intelligent light with measurement control system is to need at present
It solves the problems, such as.
Summary of the invention
In view of the deficiencies of the prior art, the present invention proposes a kind of control method and system for intelligent light with measurement.
A kind of control method for intelligent light with measurement, comprising steps of when detecting fibre circuit failure or depositing
In disruption risk, optical line terminal OLT is by the collected optical power trajectory diagram of optical time domain reflectometer OTDR and non-faulting optical fiber
Curve comparison determines the fault point on fibre circuit and abort situation；Match handover scheme based on preset intelligent light, optical time domain is anti-
The photoswitch OS for penetrating instrument OTDR control optical distribution network equipment ODN1 equipment side, switches to other non-faulting optical fiber for signal of communication
Route.
When fibre circuit failure or there are when disruption risk, optical line terminal OLT adopts optical time domain reflectometer OTDR
The optical power trajectory diagram and non-faulting optical fiber curve comparison collected, determines the fault point on fibre circuit and abort situation, comprising:
For optical line terminal OLT by the collected back rayleigh scattering light of optical time domain reflectometer OTDR, being formed with the position of optical fiber is cross
Coordinate, using the backscattering power dB value of sampled point as the back rayleigh scattering optical power trajectory diagram of ordinate；
After back rayleigh scattering optical power trajectory diagram and non-faulting optical fiber curve comparison, electric power passive optical-fiber network is obtained
Fault point present on fibre circuit and event type in PON；Using Distribution GIS, determine fault point in map
Corresponding abort situation.
Match handover scheme based on preset intelligent light, optical time domain reflectometer OTDR controls optical distribution network equipment ODN equipment
On photoswitch OS, signal of communication is switched into other non-faulting fibre circuits, comprising: when optical time domain reflectometer OTDR is detected
Key light distribution network equipment ODN1 and from the fibre circuit 1 between optical distribution network equipment ODN2 there are failure or exist eventually interrupt wind
When dangerous, optical time domain reflectometer OTDR matches handover scheme according to preset intelligent light, the control side key light distribution network equipment ODN1
Signal of communication is switched on other non-faulting fibre circuits 6 by photoswitch；
Slave optical distribution network equipment ODN2 on failure fibre circuit by other from optical distribution network equipment ODN3, will be with
The status information and the status information of itself of the optical network unit ONU of its connection send optical link to through optical time domain reflectometer OTDR
Terminal OLT.
Match handover scheme based on preset intelligent light, optical time domain reflectometer OTDR controls optical distribution network equipment ODN1 equipment
On photoswitch OS, signal of communication is switched into other non-faulting fibre circuits, comprising: when optical time domain reflectometer OTDR is detected
There are failure or there is interruption wind from the fibre circuit 2 between optical distribution network equipment ODN2 optical network unit ONU 1 connected to it
When dangerous, optical time domain reflectometer OTDR matches handover scheme according to preset intelligent light, controls from optical distribution network equipment ODN2
Photoswitch OS switches to signal of communication on other non-faulting fibre circuits 3；Optical network unit ONU 1 utilizes fibre circuit 7 will
For the status information of itself by coupled, optical network unit ONU 2 sends optical line terminal to through optical time domain reflectometer OTDR
OLT。
It is detected using each fibre circuit of the optical time domain reflectometer OTDR to access electric power passive optical-fiber network PON；
Event type include: fibre circuit bending or have weld head in the case of the non-reflective event that occurs and in optical fiber cable
The reflection event that the breaking part on road or joint occur.
A kind of control system for intelligent light with measurement, comprising: fault determination module, it will for optical line terminal OLT
The collected optical power trajectory diagram of optical time domain reflectometer OTDR and non-faulting optical fiber curve comparison, determine the failure on fibre circuit
Point and abort situation；Switching module, for matching handover scheme based on preset intelligent light, optical time domain reflectometer OTDR control light is matched
Signal of communication is switched to other non-faulting fibre circuits by the photoswitch OS in line network equipment ODN1 equipment.
Fault determination module, comprising: optical power trajectory diagram submodule, compare submodule, Distribution GIS module and
Starting module；Optical power track module, it is collected backwards to auspicious by optical time domain reflectometer OTDR for optical line terminal OLT
Benefit scattering light forms using the position of optical fiber as abscissa, is ordinate backwards to auspicious using the backscattering power dB value of sampled point
Benefit scattering optical power trajectory diagram；Comparison module, for back rayleigh scattering optical power trajectory diagram and non-faulting optical fiber curve comparison
Afterwards, fault point and event type present on fibre circuit in electric power passive optical-fiber network PON are obtained；
Distribution GIS module, for determining fault point corresponding abort situation in map.
Switching module, comprising: optical distribution network equipment switching module and optical distribution network facility information transmission module；
Optical distribution network equipment switching module, for detecting key light distribution network equipment as optical time domain reflectometer OTDR
ODN1 and from the fibre circuit 1 between optical distribution network equipment ODN2 there are failure or when there is whole disruption risk, optical time domain reflection
Instrument OTDR matches handover scheme according to preset intelligent light, controls the photoswitch of the side key light distribution network equipment ODN1, communication is believed
It number is switched on other non-faulting fibre circuits 6；
Optical distribution network facility information transmission module, the slave optical distribution network equipment ODN2 on failure fibre circuit are logical
It crosses other from optical distribution network equipment ODN3, the status information of optical network unit ONU connected to it and the state of itself is believed
Breath sends optical line terminal OLT to through optical time domain reflectometer OTDR.
Switching module, comprising: optical network unit switching module and optical network unit information transmission modular；
Optical network unit switching module, for when optical time domain reflectometer OTDR detect from optical distribution network equipment ODN2 with
Fibre circuit 2 between its optical network unit ONU 1 connected is there are failure or there are when disruption risk, optical time domain reflectometer OTDR
Match handover scheme according to preset intelligent light, controls from the photoswitch OS on optical distribution network equipment ODN2, signal of communication is cut
It shifts on other non-faulting fibre circuits 3；
Optical network unit information transmission modular is believed the state of itself using fibre circuit 7 for optical network unit ONU 1
For breath by coupled, optical network unit ONU 2 sends optical line terminal OLT to through optical time domain reflectometer OTDR.
Detection module, for when fibre circuit breaks down or there are when disruption risk, utilizes optical time domain reflectometer OTDR
Each fibre circuit of access electric power passive optical-fiber network PON is detected；
Event type include: fibre circuit bending or have weld head in the case of the non-reflective event that occurs and in optical fiber cable
The reflection event that the breaking part on road or joint occur.
Compared with the prior art, the invention has the benefit that
1, of the invention when fibre circuit breaks down, when collected optical power trajectory diagram and optical fiber are worked normally
Reference curve compares, and determines fault message, and optical line terminal OLT starts preset switching prediction scheme, equipment is instructed to change road in time
Diameter realizes the fast and safely reliable switching of optic communication signal；
2, the present invention is in the optical fiber for detecting fibre circuit or access optical network unit ONU in light distribution network equipment ODN
For route there are when failure, the photoswitch of light distribution network equipment ODN equipment side will start preset switching prediction scheme, guarantee optic communication chain
The normal operation on road；
3, the present invention carries out inspection to each incoming fiber optic using the optical time domain reflectometer OTDR of optical line terminal OLT side,
And the status information of each equipment is reported to the OLT of optical line terminal by optical time domain reflectometer OTDR, realize intelligent light distribution network
The long-range switching control of equipment ODN, and then realize the automatic switchover of optical path.
Detailed description of the invention
Fig. 1 is the design flow diagram of control system of the present invention；
Fig. 2 is the structural schematic diagram of electric power passive optical-fiber network PON of the present invention；
Fig. 3 is the structure chart of control system of the present invention.
Specific embodiment
Specific embodiments of the present invention will be described in further detail with reference to the accompanying drawing.
As shown in Figure 1, control method of the invention, comprising steps of using optical time domain reflectometer OTDR to access electric power without
Each fibre circuit of source fiber optic network PON is detected；When detecting that fibre circuit breaks down or there are when disruption risk,
Optical line terminal OLT determines the collected optical power trajectory diagram of optical time domain reflectometer OTDR and normal optical fiber curve comparison
Fault point and abort situation on fibre circuit；Match handover scheme, optical time domain reflectometer OTDR control based on preset intelligent light
Signal of communication, is switched to the fibre circuit of other health by the photoswitch OS of optical distribution network equipment ODN1 equipment side.
As shown in Fig. 2, electric power passive optical-fiber network PON structure of the invention includes: optical line terminal OLT, light distribution network
Equipment ODN and optical network unit ONU.
As shown in figure 3, the present invention is in the ODN equipment such as the Optical Distribution Frame of optical distribution network equipment ODN system and light cross-connecting box
Upper introducing optical path switches switch OS, and designs between terminal optical network unit ONU and ONU, ODN equipment and ODN equipment spare
Optical fiber, when optical time domain reflectometer OTDR monitors fibre circuit failure or risk, OTDR carries out each incoming fiber optic
Inspection, intellectual analysis goes out fault point present on optical fiber, abort situation and relevant parameter, after obtaining far, according to
The intelligent light of systemic presupposition remotely controls the photoswitch OS in ODN equipment with handover scheme, and signal of communication is switched to certain and is good for
On the fibre circuit of health, being switched fast automatically for fibre circuit is realized.
When optical line terminal OLT analyzes the type and positioning of fiber failure, the preset intelligent light of foundation system is matched
Handover scheme plans the communication path of terminal communication device ONU again, controls OS photoswitch in time by OTDR to fibre circuit
It switches over, just uses the spare connection optical fiber between ONU and ONU, ODN and ODN at this time, such as terminal communication device ONU1
The route (2) of access is there are failure or when may cause the risk of communication disruption, the further root of OS photoswitch of 1 side of ODN equipment
Match handover scheme according to intelligent light, instructs the photoswitch of 2 side of ODN equipment, signal of communication is switched into another healthy cable line
On road (3).
When the signal of communication of communication equipment ONU1 switches on lightguide cable link (3), power optical fiber that OTDR will test
Status data sends ONU1 to, and ONU1 is and guided to change path in time, and the status information of ONU1 itself is transmitted OTDR, realizes logical
Believe the automatic switchover in path.
OLT acquires the back rayleigh scattering light passed back by OTDR, is formed using the position of optical fiber as abscissa, with sampled point
Backscattering power dB value be ordinate back rayleigh scattering optical power trajectory diagram, back when itself and optical fiber are worked normally
Analyse and compare to Rayleigh scattering curve, judge fault point present on optical fiber and event type (such as in fibre-optical bending or
The reflection event for having the non-reflective event occurred in first-class situation that welds, occurring in the breaking part of optical fiber or joint), in combination
Information system GIS is managed, realizes the accurate positioning of abort situation, directly marks out of order exact position on map, and final
Be out of order analysis report；According to comparison result, preset intelligent light is called to match handover scheme, the light of the control each equipment side ODN is opened
It closes, fibre circuit is switched fast, realizes the automatic switchover of optical path, guarantees the normal operation of communication service.
It introduces light in ODN equipment side to open the light, for example, there are failures or can when OTDR detects the route (2) of ONU1 access
When can lead to the risk of communication disruption, handover scheme is matched according to intelligent light, OTDR instructs the light of 1 side of ODN equipment to open the light OS, switching
To another healthy lightguide cable link (3), ONU1 is connected using the spare fibre route (7) between ONU2 and ONU1, it is real
The real-time switching of existing communication path, guarantees the normal operation of optical communication link, OTDR and the electric power optical cable status number that will test
ONU1 is sent to according to by the communication path after change, while ONU1 passes through ONU2 for the shape of equipment ONU1 itself also by former road
State information sends OTDR to.
When OTDR detects the fibre circuit (1) between ODN equipment 1 and ODN equipment 2 there are failure or may cause communication
When the risk of interruption, handover scheme is matched according to the intelligent light for being stored in the side OLT, OTDR instructs the photoswitch of 1 side of ODN equipment, cuts
It changes on fibre circuit (6), connects ODN equipment 2 using the spare fibre route (5) between ODN equipment 2 and ODN equipment 3,
Guarantee the normal operation of the lower ONU equipment of ODN equipment 2, and after the network status data that will test of OTDR is by changing
Communication path sends ODN equipment 2 to, while ODN equipment 2 sets the ONU under ODN equipment 2 by ODN equipment 3 also by former road
The status information of standby and equipment itself sends OTDR to.
The status information for the entire distribution that intelligent light can be received with handover scheme according to OTDR, by corresponding man-machine
Interface carries out editor's maintenance, to guarantee the normal operation of entire distribution optical fiber link.
Based on the same inventive concept, the present invention also provides it is a kind of for intelligent light with measure control system, below into
Row explanation.
The control system includes: fault determination module, collects optical time domain reflectometer OTDR for optical line terminal OLT
Optical power trajectory diagram and non-faulting optical fiber curve comparison, determine the fault point on fibre circuit and abort situation；Switching module,
For matching handover scheme based on preset intelligent light, optical time domain reflectometer OTDR is controlled in optical distribution network equipment ODN1 equipment
Signal of communication is switched to other non-faulting fibre circuits by photoswitch OS.
Fault determination module, comprising: optical power trajectory diagram submodule, compare submodule, Distribution GIS module and
Starting module；Optical power track module, it is collected backwards to auspicious by optical time domain reflectometer OTDR for optical line terminal OLT
Benefit scattering light forms using the position of optical fiber as abscissa, is ordinate backwards to auspicious using the backscattering power dB value of sampled point
Benefit scattering optical power trajectory diagram；Comparison module, for back rayleigh scattering optical power trajectory diagram and non-faulting optical fiber curve comparison
Afterwards, fault point and event type present on fibre circuit in electric power passive optical-fiber network PON are obtained；
Distribution GIS module, for determining fault point corresponding abort situation in map.
Switching module, comprising: optical distribution network equipment switching module and optical distribution network facility information transmission module；Light is matched
Line network equipment switching module, for detecting key light distribution network equipment ODN1 and from optical wiring as optical time domain reflectometer OTDR
There are failure or when there is whole disruption risk in the fibre circuit 1 between network equipment ODN2, optical time domain reflectometer OTDR is according to default
Intelligent light match handover scheme, control the side key light distribution network equipment ODN1 photoswitch, signal of communication is switched to other non-
On failure fibre circuit 6；
Optical distribution network facility information transmission module, the slave optical distribution network equipment ODN2 on failure fibre circuit are logical
It crosses other from optical distribution network equipment ODN3, the status information of optical network unit ONU connected to it and the state of itself is believed
Breath sends optical line terminal OLT to through optical time domain reflectometer OTDR.
Switching module, comprising: optical network unit switching module and optical network unit information transmission modular；
Optical network unit switching module, for when optical time domain reflectometer OTDR detect from optical distribution network equipment ODN2 with
Fibre circuit 2 between its optical network unit ONU 1 connected is there are failure or there are when disruption risk, optical time domain reflectometer OTDR
Match handover scheme according to preset intelligent light, controls from the photoswitch OS on optical distribution network equipment ODN2, signal of communication is cut
It shifts on other non-faulting fibre circuits 3；
Optical network unit information transmission modular is believed the state of itself using fibre circuit 7 for optical network unit ONU 1
For breath by coupled, optical network unit ONU 2 sends optical line terminal OLT to through optical time domain reflectometer OTDR.
Detection module, for when fibre circuit breaks down or there are when disruption risk, utilizes optical time domain reflectometer OTDR
Each fibre circuit of access electric power passive optical-fiber network PON is detected；Event type includes: fibre circuit bending or has
The reflection event for welding the non-reflective event occurred in the case of head and occurring in the breaking part of fibre circuit or joint.
It should be understood by those skilled in the art that, embodiments herein can provide as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the application
Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the application, which can be used in one or more,
The computer program implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) produces
The form of product.
The application is referring to method, the process of equipment (system) and computer program product according to the embodiment of the present application
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices.
Finally it should be noted that: the above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof, to the greatest extent
Invention is explained in detail referring to above-described embodiment for pipe, it should be understood by those ordinary skilled in the art that: still
It can be with modifications or equivalent substitutions are made to specific embodiments of the invention, and without departing from any of spirit and scope of the invention
Modification or equivalent replacement, are intended to be within the scope of the claims of the invention.
Claims (16)
1. a kind of control method for intelligent light with measurement, which is characterized in that comprising steps of
When detecting that fibre circuit breaks down or there are when disruption risk, optical line terminal (OLT) is by optical time domain reflectometer
(OTDR) collected optical power trajectory diagram and non-faulting optical fiber curve comparison determine the fault point on the fibre circuit and event
Hinder position；
Match handover scheme based on preset intelligent light, the optical time domain reflectometer (OTDR) controls optical distribution network equipment (ODN)
Signal of communication is switched to other non-faulting fibre circuits by the photoswitch (OS) of equipment side.
2. control method according to claim 1, which is characterized in that described when fibre circuit breaks down or there is interruption
When risk, optical line terminal (OLT) is by the collected optical power trajectory diagram of the optical time domain reflectometer (OTDR) and non-faulting light
Fine curve comparison determines the fault point on the fibre circuit and abort situation, comprising:
The optical line terminal (OLT) is formed by the optical time domain reflectometer (OTDR) collected back rayleigh scattering light
Using the position of optical fiber as abscissa, using the backscattering power dB value of sampled point as the back rayleigh scattering optical power rail of ordinate
Mark figure；
After the back rayleigh scattering optical power trajectory diagram and the non-faulting optical fiber curve comparison, the electric power passive light is obtained
Fault point and event type present on fibre circuit in fibre web network (PON)；
Using Distribution GIS, the fault point corresponding abort situation in map is determined.
3. control method according to claim 1, which is characterized in that it is described that handover scheme is matched based on preset intelligent light,
Photoswitch (OS) in described optical time domain reflectometer (OTDR) control optical distribution network equipment (ODN) equipment, signal of communication is cut
Shift to other non-faulting fibre circuits, comprising:
When the optical time domain reflectometer (OTDR) detects key light distribution network equipment (ODN1) and from optical distribution network equipment
(ODN2) fibre circuit (1) between is there are failure or there are when disruption risk, and the optical time domain reflectometer (OTDR) is according to
Preset intelligence light matches handover scheme, controls the photoswitch of key light distribution network equipment (ODN1) side, signal of communication is cut
It changes on other non-faulting fibre circuits (6).
4. control method according to claim 1 or 3, which is characterized in that further include:
Slave optical distribution network equipment (ODN2) on failure fibre circuit by other from optical distribution network equipment (ODN3), will be with
The status information and the status information of itself of its optical network unit (ONU) connected are transmitted through the optical time domain reflectometer (OTDR)
Give the optical line terminal (OLT).
5. control method according to claim 1, which is characterized in that it is described that handover scheme is matched based on preset intelligent light,
Photoswitch (OS) in described optical time domain reflectometer (OTDR) control optical distribution network equipment (ODN) equipment, signal of communication is cut
Shift to other non-faulting fibre circuits, comprising:
When the optical time domain reflectometer (OTDR) is detected from optical distribution network equipment (ODN2) optical network unit connected to it
(ONU1) fibre circuit (2) between is there are failure or there are when disruption risk, and the optical time domain reflectometer (OTDR) is according to
Preset intelligence light matches handover scheme, and control is described from the photoswitch (OS) on optical distribution network equipment (ODN2), and communication is believed
It number switches on other non-faulting fibre circuits (3).
6. control method according to claim 1 or 5, which is characterized in that further include:
The status information of itself is passed through coupled, optical-fiber network using fibre circuit (7) by the optical network unit (ONU1)
Unit (ONU2) sends the optical line terminal (OLT) to through the optical time domain reflectometer (OTDR).
7. control method according to claim 1, which is characterized in that
It is examined using each fibre circuit of the optical time domain reflectometer (OTDR) to access electric power passive optical-fiber network (PON)
It surveys.
8. control method according to claim 2, which is characterized in that the event type includes:
Fibre circuit be bent or have weld head in the case of the non-reflective event that occurs and breaking part or connector in fibre circuit
Locate the reflection event occurred.
9. a kind of control system for intelligent light with measurement characterized by comprising
Fault determination module is used for optical line terminal (OLT) for the collected optical power rail of the optical time domain reflectometer (OTDR)
Mark figure and non-faulting optical fiber curve comparison, determine the fault point on the fibre circuit and abort situation；
Switching module, for matching handover scheme based on preset intelligent light, the optical time domain reflectometer (OTDR) controls optical wiring
Signal of communication is switched to other non-faulting fibre circuits by the photoswitch (OS) in the network equipment (ODN1) equipment.
10. control system according to claim 7, which is characterized in that the fault determination module, comprising: optical power rail
Mark figure submodule compares submodule, Distribution GIS module and starting module；
Optical power track module is adopted for the optical line terminal (OLT) by the optical time domain reflectometer (OTDR)
The back rayleigh scattering light collected forms using the position of optical fiber as abscissa, is vertical with the backscattering power dB value of sampled point
The back rayleigh scattering optical power trajectory diagram of coordinate；
The comparison module, after the back rayleigh scattering optical power trajectory diagram and the non-faulting optical fiber curve comparison,
Obtain fault point and event type present on fibre circuit in the electric power passive optical-fiber network (PON)；
The Distribution GIS module, for determining the fault point corresponding abort situation in map.
11. control system according to claim 9, which is characterized in that the switching module, comprising: optical distribution network is set
Standby switching module and optical distribution network facility information transmission module；
The optical distribution network equipment switching module, for detecting key light distribution network as the optical time domain reflectometer (OTDR)
Equipment (ODN1) and from the fibre circuit (1) between optical distribution network equipment (ODN2) there are failure or there are when disruption risk, institute
Optical time domain reflectometer (OTDR) is stated according to the preset intelligent light with handover scheme, controls the key light distribution network equipment
(ODN1) signal of communication is switched on other non-faulting fibre circuits (6) by the photoswitch of side.
12. the control system according to claim 9 or 11, which is characterized in that
The optical distribution network facility information transmission module, the slave optical distribution network equipment (ODN2) on failure fibre circuit
By other from optical distribution network equipment (ODN3), by the status information of optical network unit connected to it (ONU) and itself
Status information sends the optical line terminal (OLT) to through the optical time domain reflectometer (OTDR).
13. control system according to claim 9, which is characterized in that the switching module, comprising: optical network unit is cut
Change the mold block and optical network unit information transmission modular；
The optical network unit switching module, for detecting as the optical time domain reflectometer (OTDR) from optical distribution network equipment
(ODN2) fibre circuit (2) between optical network unit (ONU1) connected to it is described there are failure or there are when disruption risk
Optical time domain reflectometer (OTDR) matches handover scheme according to the preset intelligent light, and control is described from optical distribution network equipment
(ODN2) photoswitch (OS) on switches to signal of communication on other non-faulting fibre circuits (3).
14. the control system according to claim 9 or 13, which is characterized in that
The optical network unit information transmission modular, for the optical network unit (ONU1) using fibre circuit (7) by itself
Status information by coupled, optical network unit (ONU2) sends the light to through the optical time domain reflectometer (OTDR)
Line terminal (OLT).
15. control system according to claim 9, which is characterized in that the control system further include:
Detection module, it is right using optical time domain reflectometer (OTDR) for breaking down or there are when disruption risk when fibre circuit
Each fibre circuit of access electric power passive optical-fiber network (PON) is detected.
16. control system according to claim 10, which is characterized in that the event type includes:
Fibre circuit be bent or have weld head in the case of the non-reflective event that occurs and breaking part or connector in fibre circuit
Locate the reflection event occurred.
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