CN215268278U - Power optical cable network line detection system - Google Patents
Power optical cable network line detection system Download PDFInfo
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- CN215268278U CN215268278U CN202121787822.0U CN202121787822U CN215268278U CN 215268278 U CN215268278 U CN 215268278U CN 202121787822 U CN202121787822 U CN 202121787822U CN 215268278 U CN215268278 U CN 215268278U
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Abstract
A power optical cable network line detection system relates to the field of power system optical fiber communication, and solves the problems that an existing optical cable line based on an Optical Time Domain Reflectometer (OTDR) monopolizes a fiber core detection mode, wastes optical fiber core resources of the line, and increases detection cost; the optical cable line working fiber core online detection mode based on optical power can only provide optical cable line light receiving optical path fault alarm, needs manual fault detection, cannot identify faults occurring at line optical cable positions, solves the problems of long-time interruption and extension of optical fiber communication caused by long troubleshooting time and the like, and comprises main equipment and N pieces of slave equipment, wherein the main equipment is used for online detection of N optical cable lines between a main transformer station and N transformer stations; the N detection units share the control processor, the optical switch and the OTDR; the control processor is connected with the optical switch and the OTDR through the electrical interface respectively. This novel improve detecting system operational reliability, guarantee power optical cable net steady operation has satisfied the detection demand.
Description
Technical Field
The invention relates to the field of optical fiber communication of an electric power system, in particular to a power optical cable network line detection system.
Background
The network topology structure of the power optical cable network is complex, the laying environment is complex, and the geographic area is large, so that the operation, maintenance and overhaul of the optical fiber communication network of the power system are difficult. Once a power optical cable network circuit breaks down, communication interruption is caused to influence the safe operation of a power system, and economic loss is caused to power enterprises. The existing optical cable line on-line monitoring mode based on optical power can only provide line fault alarm, cannot provide detection information and has a false alarm condition; optical cable line detection based on an Optical Time Domain Reflectometer (OTDR) wastes valuable optical fiber core resources of the optical cable line because the optical fiber core needs to be monopolized for online line detection, and the construction requirements of an electric power optical cable network of an energy internet cannot be met. Therefore, the prior art is difficult to meet the detection requirement of the optical cable network line of the power system.
Therefore, the optical cable network line detection of the power system needs to carry out on-line detection on the optical cable network optical cable line, so that the influence on the normal communication of the optical cable network line is avoided, meanwhile, the reliability of the optical cable network on-line detection is improved, the time for detecting faults of the optical cable line is shortened, and the intelligent degree of the optical cable line on-line detection is improved.
Disclosure of Invention
The invention aims to solve the problems that the existing optical cable line based on an Optical Time Domain Reflectometer (OTDR) monopolizes a fiber core detection mode, wastes the fiber core resource of the line and increases the detection cost; the optical power-based on-line detection mode of the working fiber core of the optical cable line can only provide fault alarm of the optical receiving path of the optical cable line, needs manual fault detection, cannot identify faults occurring at the position of the line optical cable, solves the problems that long-time interruption and extension of optical fiber communication are caused by long troubleshooting time, and the like, and provides the power optical cable network line detection system.
A power optical cable network line detection system comprises a main device and N slave devices, wherein the main device is arranged in a main transformer station, and the N slave devices are respectively and correspondingly arranged in N transformer stations;
the main equipment consists of a control processor, an optical switch, an OTDR and N detection units and is used for carrying out online detection on N optical cable lines between the main substation and N substations, and one detection unit and one slave equipment together complete the online detection of a corresponding optical cable line;
the N detection units share a control processor, an optical switch and an OTDR; the control processor is respectively connected with the optical switch and the OTDR through an electrical interface;
each detection unit comprises a first wavelength division multiplexer, a second wavelength division multiplexer and an attenuator;
each slave device includes a third wavelength division multiplexer and a fourth wavelength division multiplexer;
the control processor is accessed to a data transmission network of the power system through an RJ45 network port and is connected with the server to realize remote control of the main equipment;
the control processor is connected with the optical switch through the control OTDR, and is connected with a first wavelength division multiplexer corresponding to the detection unit through an optical interface of the optical switch, the first wavelength division multiplexer is connected with a third wavelength division multiplexer at the slave equipment end through a corresponding optical cable line, the third wavelength division multiplexer is connected with a fourth wavelength division multiplexer, and the fourth wavelength division multiplexer is connected with a second wavelength division multiplexer corresponding to the detection unit through the corresponding optical cable line, so that the simultaneous online detection of the corresponding optical cable line light-emitting optical path and the corresponding optical receiving optical path under the normal optical communication condition is realized;
the control processor is sequentially connected to the first wavelength division multiplexers in the detection units of the main equipment in a circulating mode through the control optical switches, so that the light emitting optical path and the light receiving optical path of each optical cable line are sequentially detected, and the detection results are uploaded to the server through the control processor.
The invention has the beneficial effects that: according to the power optical cable network circuit detection system, a plurality of optical cable optical paths between a main station of a power system and a plurality of substations are detected on line, light emitting and optical fiber cores of the optical cable lines are detected on line, the optical cable communication optical path does not need to be cut off in the detection process, normal optical communication is not affected, the problem that optical fiber resources are wasted due to the fact that the optical cable lines are monopolized by the existing detection mode is solved, active devices such as optical switches do not exist in slave equipment, the operation reliability of the detection system is improved, the stable operation of the power optical cable network is guaranteed, and the detection requirements are met.
Drawings
Fig. 1 is a schematic structural diagram of a power cable network line detection system according to the present invention.
Detailed Description
First embodiment, the present embodiment is described with reference to fig. 1, and a power cable network line detection system includes a master device of one substation and slave devices of N (N-16) substations, the master device is installed in a master substation, the N slave devices correspond to N different substations,
the main equipment consists of N detection units, a control processor, an optical switch and an OTDR (optical time Domain reflectometer), wherein one detection unit and one slave equipment jointly complete the online detection of a corresponding optical cable network line;
n detection units in the main equipment, namely a unit i (i is more than or equal to 1 and less than or equal to N) and the slave equipment i realize the on-line detection of a light-emitting fiber core and a light-receiving fiber core of an optical cable i between the main substation and the substation i;
the control processor is respectively connected with the optical switch and the OTDR through an electrical interface; each detection unit comprises a wavelength division multiplexer 1, a wavelength division multiplexer 2 and an attenuator; the slave equipment of each substation comprises a wavelength division multiplexer 3 and a wavelength division multiplexer 4;
each detection unit has the same structure, each substation slave device has the same structure, and the master device side ODF and the slave device side ODF are connected by using corresponding optical cable lines.
And the control processor is accessed to a data transmission network of the power system through an RJ45 network port and is connected with the server to realize remote control of the main equipment.
In this embodiment, the emitting end of the light emitting fiber core of the optical cable line 1 is connected to the wavelength division multiplexer 1 of the detection unit 1 through the first Optical Distribution Frame (ODF) of the main device end, the wavelength division multiplexer 1 is connected to one end of the optical cable line 1 through the second ODF of the main device end, the other end of the optical cable line 1 is connected to the wavelength division multiplexer 3 of the slave device 1 through the first ODF of the slave device 1 end, and the wavelength division multiplexer 3 is connected to the receiving end of the light emitting fiber core 1, so as to realize normal optical communication of the light emitting optical path of the optical cable line 1;
the light receiving fiber core transmitting end of the optical cable line 1 is connected to the wavelength division multiplexer 4 through the second ODF of the slave device 1, the wavelength division multiplexer 4 is connected to the optical cable line 1 through the second ODF of the slave device 1, the optical cable line 1 is connected to the light receiving fiber core 1 receiving end through the second ODF of the master device end and the wavelength division multiplexer 2 of the detection unit 1, and normal optical communication of the light receiving fiber core 1 is achieved.
The control processor is connected with the optical switch through controlling the OTDR, and is connected to the wavelength division multiplexer 1 of the detection unit 1 through the optical interface 1 of the optical switch, the wavelength division multiplexer 1 is connected to the optical cable line 1 through the second ODF of the main device end, the optical cable line 1 is connected to the wavelength division multiplexer 3 of the slave device 1 through the first ODF of the slave device end, the wavelength division multiplexer 3 is connected to the wavelength division multiplexer 4, and is further connected to the optical cable line 1 through the first ODF of the slave device end, the optical cable line 1 is connected with the wavelength division multiplexer 2 of the detection unit 1 through the second ODF of the main device end, and the wavelength division multiplexer 2 is connected with the attenuator, so that the simultaneous online detection of the light-emitting optical path and the light-receiving optical path of the optical cable line 1 under the normal optical communication condition is realized.
The control processor is sequentially connected to the wavelength division multiplexers 1 in the detection units of the main equipment in a circulating mode through the control optical switches, so that the light emitting and light receiving optical paths of the optical cable lines are sequentially detected, and the detection results are uploaded to the server through the control processor.
The power optical cable network line detection system of the embodiment can automatically detect 16 optical cable optical paths between a main substation and 16 substations of a power optical cable network, and comprises the simultaneous detection of a light emitting fiber core and a light receiving fiber core of the optical cable optical path between a main station and each station.
In this embodiment, the optical switch is a 1 × 16 optical switch, the OTDR is an OTDR module, the wavelength division multiplexer 1 and the wavelength division multiplexer 4 are wavelength division multiplexer modules, and the wavelength division multiplexer 2 and the wavelength division multiplexer 3 are demultiplexer modules.
In this embodiment, the control processor is a single chip microcomputer of which the model is an STM8S103 series.
In fig. 1, thick black connecting lines represent optical cables, black connecting lines represent optical fiber cores and optical paths, thin connecting lines represent data connecting network lines, and thin connecting lines represent data connecting lines; the system comprises a main device and N auxiliary devices, wherein the main device comprises N detection units, a unit 1 and a unit 2 … share a control processor, an optical switch and an OTDR, the N detection units and the N auxiliary devices realize online detection of N optical cable lines between a main transformer station and N transformer substations, and the detection unit 1 and the auxiliary device 1 realize online detection of the optical cable line 1 between the main transformer station and the transformer substation 1;
the server controls the switch selection optical path 0 to be connected to the optical path 1 and connected to the port 3 of the wavelength division multiplexer 1 through the control processor, and at the moment, the optical cable line 1 is in an online detection mode.
According to the on-line detection requirement of the optical cable network line of the electric power system, the method detects N optical cable lines between a main transformer station and N transformer stations, the control processor controls the optical switch to sequentially select an optical path 0 to be connected to an optical path 1 to an optical path N, and the on-line detection of the optical cable line 1 to the optical cable line N is respectively realized through OTDR.
In this embodiment, the communication principle of the light-emitting optical path and the light-receiving optical path of the optical cable line 1 is as follows: in fig. 1, a 1-path light emitting fiber core 1 originating from an optical cable line 1 is connected to an 1310/1550nm wavelength light inlet port 1 of a wavelength division multiplexer 1 of a detection unit 1 in a master device, is connected to a trunk line of the optical cable line 1 through an optical outlet port 2 of the wavelength division multiplexer 1, is connected to an optical inlet port 2 of a wavelength division multiplexer 3 in a slave device 1, and is connected to a receiving end of the light emitting fiber core 1 through an optical outlet port 1 of 1310/1550nm wavelength light of the wavelength division multiplexer 3, so as to implement optical communication of the 1-path light emitting optical path of the optical cable line 1;
the 1-path receiving optical fiber core 1 originating end from the optical cable line 1 is connected to the trunk line of the optical cable line 1 through the light inlet port 1 of 1310/1550nm wavelength light of the wavelength division multiplexer 4 and the light outlet port 2 of the wavelength division multiplexer 4, is accessed to the light inlet port 2 of the wavelength division multiplexer 2 of the detection unit 1 in the main device, and is connected with the receiving end of the receiving optical fiber core 1 through the light outlet port 1 of the wavelength division multiplexer 2, so that the optical communication of the 1-path receiving optical path of the optical cable line 1 is realized.
The online detection principle of the light-emitting optical path and the light-receiving optical path of the optical cable line 1 is as follows: in fig. 1, 1 light-emitting fiber core 1 from the optical cable line 1 is connected to an optical input port 1 of 1310/1550nm wavelength light of a wavelength division multiplexer 1 of a detection unit 1 in a master device, is connected to a trunk of the optical cable line 1 through an optical output port 2 of the wavelength division multiplexer 1, is connected to an optical input port 2 of a wavelength division multiplexer 3 in a slave device 1, is connected to an optical input port 3 of 1625nm wavelength light of a wavelength division multiplexer 4 through a 1625nm wavelength division multiplexing optical port 3 of the wavelength division multiplexer 3, is connected to a trunk of the optical cable line 1 through an optical output port 2 of the wavelength division multiplexer 4, is connected to an optical input port 2 of the wavelength division multiplexer 2 in the master device unit 1, and is connected to an attenuator through a 1625nm wavelength division multiplexing optical port 3 of the wavelength division multiplexer 2.
The server controls the optical switch selection optical path 0 to be connected to the optical path 1 through the control processor, controls the OTDR to inject detection light into the 1625nm optical multiplexing port 3 of the wavelength division multiplexer 1 through the optical switch, and controls the OTDR to transmit the detection light into the optical input port 2 of the wavelength division multiplexer 3 of the slave 1 through the optical cable line 1 by the optical switch, and demultiplexes the detection light to the multiplexing port 3 of the wavelength division multiplexer 4 by the demultiplexing port 3 of the wavelength division multiplexer 3, and transmits the detection light to the optical input port 2 of the wavelength division multiplexer 2 in the unit 1 through the optical cable line 1 by the optical output port 2 of the wavelength division multiplexer 4, and demultiplexes the detection light by the optical output port 3 of the wavelength division multiplexer 2, and at the moment, the optical cable line 1 is in an online detection mode;
the server controls the optical switch through the control processor, sequentially switches to the wavelength division multiplexer multiplexing port optical paths of the optical fiber cores of the optical cable lines, realizes online detection of the optical cable lines through OTDR, and uploads the detection result to the server.
Claims (6)
1. A power optical cable network line detection system comprises a main device and N slave devices, wherein the main device is arranged in a main transformer station, and the N slave devices are respectively and correspondingly arranged in N transformer stations; the method is characterized in that:
the main equipment consists of a control processor, an optical switch, an OTDR and N detection units and is used for carrying out online detection on N optical cable lines between the main substation and N substations, and one detection unit and one slave equipment together complete the online detection of a corresponding optical cable line;
the N detection units share a control processor, an optical switch and an OTDR; the control processor is respectively connected with the optical switch and the OTDR through an electrical interface;
each detection unit comprises a first wavelength division multiplexer, a second wavelength division multiplexer and an attenuator;
each slave device includes a third wavelength division multiplexer and a fourth wavelength division multiplexer;
the control processor is accessed to a data transmission network of the power system through an RJ45 network port and is connected with the server to realize remote control of the main equipment;
the control processor is connected with the optical switch through the control OTDR, and is connected with a first wavelength division multiplexer corresponding to the detection unit through an optical interface of the optical switch, the first wavelength division multiplexer is connected with a third wavelength division multiplexer at the slave equipment end through a corresponding optical cable line, the third wavelength division multiplexer is connected with a fourth wavelength division multiplexer, and the fourth wavelength division multiplexer is connected with a second wavelength division multiplexer corresponding to the detection unit through the corresponding optical cable line, so that the simultaneous online detection of the corresponding optical cable line light-emitting optical path and the corresponding optical receiving optical path under the normal optical communication condition is realized;
the control processor is sequentially connected to the first wavelength division multiplexers in the detection units of the main equipment in a circulating mode through the control optical switches, so that the light emitting optical path and the light receiving optical path of each optical cable line are sequentially detected, and the detection results are uploaded to the server through the control processor.
2. The power cable network line detection system of claim 1, wherein: a light-emitting fiber core of a first optical cable line is connected to a light inlet port of a first wavelength division multiplexer of a first detection unit in the main device, is connected to the first optical cable line through a light outlet port of the first wavelength division multiplexer, is connected to a light inlet port of a third wavelength division multiplexer in the first slave device through the first optical cable line, and is connected to a light-emitting fiber core receiving end through a light outlet port of the third wavelength division multiplexer, so that normal optical communication of one path of light-emitting optical path of the first optical cable line is realized;
the transmitting end of the light receiving fiber core of the first optical cable line is connected to the light inlet port of the fourth wavelength division multiplexer in the first slave device, the light outlet port of the fourth wavelength division multiplexer is connected to the first optical cable line, the light inlet port of the second wavelength division multiplexer of the first detection unit in the master device is connected to the light receiving end of the light receiving fiber core through the light outlet port of the second wavelength division multiplexer, and normal optical communication of the light receiving fiber core of the first optical cable line is achieved.
3. The power cable network line detection system of claim 1, wherein: the transmitting end of the light-emitting fiber core and the receiving end of the light-receiving fiber core are both connected to the detection unit through an optical fiber distribution frame, and the two ends of the optical cable line are respectively connected to the detection unit and the slave equipment through the optical fiber distribution frame; and the light-emitting fiber core receiving end and the light-receiving fiber core transmitting end are both connected with the optical fiber distribution frame.
4. The power cable network line detection system of claim 3, wherein:
a light emitting fiber core of a first optical cable line is connected to a light inlet port of a first wavelength division multiplexer of a first detection unit through a first optical fiber distribution frame of a main equipment end, a light outlet port of the first wavelength division multiplexer is connected with one end of the first optical cable line through a second optical fiber distribution frame of the main equipment end, the other end of the first optical cable line is connected with a light inlet port of a third wavelength division multiplexer through a first optical fiber distribution frame of first slave equipment, and a light outlet port of the third wavelength division multiplexer is connected to a receiving end of the light emitting fiber core through a second optical fiber distribution frame of the first slave equipment end, so that normal optical communication of a light emitting optical path of the first optical cable line is realized;
the receiving optical fiber core of the first optical cable line is transmitted to the light inlet port of the fourth wavelength division multiplexer through the second optical distribution frame of the first slave device, the light outlet port of the fourth wavelength division multiplexer is connected with the first optical cable line through the first optical distribution frame of the first slave device, the second optical distribution frame of the first optical cable line is connected to the light inlet port of the second wavelength division multiplexer, the light outlet port of the second wavelength division multiplexer is connected to the receiving end of the receiving optical fiber core through the first optical distribution frame of the master device, and normal optical communication of the receiving optical path of the first optical cable line is achieved.
5. The power cable network line detection system of claim 4, wherein: the control processor is connected with the optical switch through a control OTDR optical interface, is connected with a multiplexing port of a first wavelength division multiplexer in the first detection unit through an optical path 0 of the control optical switch, is connected with 1 through a control optical switch, injects detection light with 1625nm wavelength, is connected with a second optical distribution frame at the main equipment end to a trunk line of a first optical cable line through an optical outlet port of the first wavelength division multiplexer, is connected with an optical inlet port of a third wavelength division multiplexer of the slave equipment 1 through a first optical distribution frame at the slave equipment end, is connected with a multiplexing port of a fourth wavelength division multiplexer through a demultiplexing port of the third wavelength division multiplexer, an optical outlet port of the fourth wavelength division multiplexer is connected with the trunk line of the first optical cable line through the first optical distribution frame at the slave equipment 1, is connected with an optical inlet port of the second wavelength division multiplexer of the first detection unit through a second optical distribution frame at the main equipment end, and is connected with an attenuator through the demultiplexing port of the second wavelength division multiplexer, and the on-line detection of the first optical cable line under the normal communication condition of the normal light emitting and light receiving optical paths is realized.
6. The power cable network line detection system of claim 5, wherein: the optical switch is a 1 × 16 optical switch, the first wavelength division multiplexer and the fourth wavelength division multiplexer are wavelength division multiplexer modules, and the second wavelength division multiplexer and the third wavelength division multiplexer are demultiplexer modules.
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| CN202121787822.0U CN215268278U (en) | 2021-08-02 | 2021-08-02 | Power optical cable network line detection system |
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| CN202121787822.0U CN215268278U (en) | 2021-08-02 | 2021-08-02 | Power optical cable network line detection system |
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