CN213094408U - EPON optical network system - Google Patents
EPON optical network system Download PDFInfo
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- CN213094408U CN213094408U CN202022169190.3U CN202022169190U CN213094408U CN 213094408 U CN213094408 U CN 213094408U CN 202022169190 U CN202022169190 U CN 202022169190U CN 213094408 U CN213094408 U CN 213094408U
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Abstract
The utility model provides an EPON optical network system, which comprises a monitoring processing center, a partial discharge server, a switch, a first optical splitter and a second optical splitter; the monitoring processing center is in communication connection with the partial discharge server; the partial discharge server and the switch are arranged in the transformer substation; the switch is connected with an input end optical fiber of the first optical splitter through a wavelength division multiplexer; the first optical splitter and the second optical splitter are respectively provided with two output ends, one output end of the first optical splitter is connected with the input end of the second optical splitter, and the other output end of the first optical splitter is connected with a plurality of first optical network units; two output ends of the second optical splitter are connected with a plurality of second optical network units; the first optical network unit and the second optical network unit are both connected with partial discharge detection equipment. The utility model discloses can be through partial discharge check out test set real time monitoring cable state to carry out timely processing to the anomaly.
Description
Technical Field
The utility model relates to a passive optical network technical field especially relates to an EPON optical network system.
Background
At present, with the enlargement of the areas of various global large-scale engineering projects, heavy industries, residential buildings and other facilities, the corresponding power supply industry has also been rapidly developed. A plurality of high-voltage power cables are laid in the power cable tunnel, various abnormal conditions in the cable tunnel need to be found in time in order to guarantee safe operation of the power cables in the tunnel, and temperature, humidity, harmful gas and local grounding current in the cable tunnel are collected and monitored in real time.
And because the data transmission quantity generated in the local grounding current detection is huge, the traditional industrial bus cannot meet the requirement, and the long-term stable work of the local grounding current detection equipment in a cable tunnel cannot be ensured. Therefore, a Passive Optical Network (PON) system is required to transmit data in the local ground current detection device. However, the passive optical network system in the prior art cannot detect the local ground current of the cable, so that the current state of the cable cannot be judged and processed in time.
SUMMERY OF THE UTILITY MODEL
In view of the above, it is necessary to provide an EPON optical network system.
An EPON optical network system comprising: the system comprises a monitoring processing center, a partial discharge server, a switch, a first optical splitter and a second optical splitter; the monitoring processing center is in communication connection with the partial discharge server; the partial discharge server and the switch are arranged in the transformer substation; the switch is connected with an input end optical fiber of the first optical splitter through a wavelength division multiplexer; the first optical splitter and the second optical splitter are respectively provided with two output ends, one output end of the first optical splitter is connected with the input end of the second optical splitter, and the other output end of the first optical splitter is connected with a plurality of first optical network units; two output ends of the second optical splitter are connected with a plurality of second optical network units; the first optical network unit and the second optical network unit are both connected with partial discharge detection equipment.
Furthermore, the monitoring processing center is provided with a control center server, a display screen, a monitoring client and a real-time monitoring platform, wherein the control center server is in communication connection with the monitoring client and the real-time monitoring platform.
Further, the power supply system also comprises a remote power supply arranged in the transformer substation; the remote power supply remotely supplies power to the first optical network unit, the second optical network unit and the local discharge detection equipment.
Further, still include: the monitoring host, the partial discharge server and the switch are in communication connection; the monitoring host is connected with at least two collectors.
Furthermore, the monitoring host is connected with two collectors which are a first collector and a second collector respectively; the first collector is connected with a cable joint temperature sensor and a current transformer; and the second collector is connected with a gas sensor and a harmful gas probe.
Further, the first beam splitter is a 50%: 50% light splitting, and the second light splitter is 5%: 95% spectral analysis.
Further, the first optical network unit and the second optical network unit both adopt H3C ET704-L series.
Further, the partial discharge detection device adopts a TECHMP partial discharge instrument.
Further, the output ends of the first optical splitter and the second optical splitter are respectively connected to the first optical network unit and the second optical network unit through single-mode optical fibers.
Further, the output ends of the first optical splitter and the second optical splitter are respectively provided with a shunt router, and the first optical network unit and the second optical network unit are connected through the shunt routers.
The EPON optical network system is characterized in that a partial discharge server and a switch are arranged in a transformer substation, the switch is connected with the input end of a first optical splitter through a wavelength division multiplexer, the first optical splitter and a second optical splitter are respectively provided with two output ends, one output end of the first optical splitter is connected with the input end of a second optical splitter, so that the second optical splitter is connected with the switch through the first optical splitter, the other output end of the second optical splitter is connected with a plurality of first optical network units, the two output ends of the second optical splitter are respectively connected with a plurality of second optical network units, the first optical network units and the second optical network units are respectively connected with partial discharge detection equipment, the leakage situation of a cable is accurately monitored through the arrangement of the plurality of partial discharge detection equipment, the detected situation is timely transmitted to the partial discharge server through the optical network units and the switch, and the problem of the leakage situation of the cable is timely solved, thereby ensuring that the cable remains functioning properly.
Drawings
Fig. 1 is a schematic diagram of an EPON optical network system according to an embodiment;
fig. 2 is a schematic structural diagram of an EPON optical network system according to another embodiment;
fig. 3 is a schematic structural diagram of a monitoring processing center in one embodiment.
Detailed Description
In order to make the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, there is provided an EPON optical network system, an EPON or ethernet passive optical network, including: the monitoring processing center 60, the partial discharge server 10, the switch 20, the first optical splitter 30, and the second optical splitter 40; the partial discharge server 10 and the switch 20 are arranged in the transformer substation; the switch 20 is connected with the input end optical fiber of the first optical splitter 30 through a wavelength division multiplexer; the first optical splitter 30 and the second optical splitter 40 are both provided with two output ends, one output end of the first optical splitter 30 is connected with the input end of the second optical splitter 40, and the other output end is connected with a plurality of first optical network units 31; two output ends of the second optical splitter 40 are connected with a plurality of second optical network units 41; the partial discharge detection device 50 is connected to both the first optical network unit 31 and the second optical network unit 41.
In the present embodiment, the monitoring processing center 60 is communicatively connected to the partial discharge server 10 for monitoring the conditions in the cable tunnel and the substation in real time; the partial discharge server 10 and the switch 20 are arranged in a substation, the switch 20 is connected with an input end of a first optical splitter 30 through a wavelength division multiplexer, the first optical splitter 30 and a second optical splitter 40 are both provided with two output ends, one output end of the first optical splitter 30 is connected with an input end of a second optical splitter 40, so that the second optical splitter 40 is connected with the switch 10 through the first optical splitter 30, the other output end is connected with a plurality of first optical network units 31, both output ends of the second optical splitter 40 are connected with a plurality of second optical network units 41, both the first optical network units 31 and the second optical network units 41 are connected with partial discharge detection equipment 50, the leakage situation of the cable is accurately monitored through arranging a plurality of partial discharge detection equipment 50, and the detected situation is timely transmitted to the partial discharge server 10 through the first optical network units 31 or the second optical network units 41 and the switch 10 by the partial discharge detection equipment 50, the problem of electric leakage of the cable is solved in time, and therefore the cable is guaranteed to keep normal operation.
Among them, Passive Optical Network (PON), EPON is a Passive Optical Network system adopting IEEE802.3-2005 standard.
The wavelength division multiplexer (not shown) combines the optical signals with different wavelengths in the first optical splitter 30 and the second optical splitter 40 into one beam, and transmits the beam to the switch 20 along a single optical fiber.
As shown in fig. 3, a schematic structural diagram of the monitoring processing center 60 in this embodiment includes: a control center server 61, a display screen 62, a monitoring client 63 and a real-time monitoring platform 64; the control center server 61 is communicatively connected to the monitoring client 62 and the real-time monitoring platform 64.
In one embodiment, as shown in fig. 2, another EPON optical network system is provided, which further includes a remote power supply 80 disposed in a substation, where the remote power supply 80 remotely supplies power to the first optical network unit 31, the second optical network unit 41, and the local discharge detection apparatus 50. Since the power consumption of the first optical network unit 31, the second optical network unit 41 and the local discharge detection device 50 is high during operation, the remote power supply 80 needs to be remotely powered to ensure normal operation.
Specifically, the method further comprises the following steps: the monitoring host 70, the partial discharge server 10 and the switch 20 are in communication connection, and the monitoring host 70 is connected with at least two collectors.
The collector can obtain various parameters of the running state of the cable and transmit the parameters to the monitoring host 70, the monitoring host 70 transmits the parameters to the partial discharge server 10, and the partial discharge server 10 transmits the parameters to the monitoring processing center 60, so that the staff can monitor the state of the cable in real time and process the abnormity of the cable in time.
Specifically, the monitoring host 70 is connected with two collectors, namely a first collector 71 and a second collector 72, and the first collector 71 is connected with a cable joint temperature sensor 711 and a current transformer 712; the second collector 72 is connected to a gas sensor 721 and a harmful gas probe 722.
The cable joint temperature sensor 711 is used for detecting the surface temperature of a cable joint, and the current transformer 712 is used for detecting the grounding current of a cable and detecting whether a leakage situation occurs; the gas sensor 721 is used for detecting the oxygen content in the air in the cable tunnel, and the harmful gas probe 722 is used for detecting the harmful gas contained in the cable tunnel; the device can monitor the running state of the cable in real time and process abnormal situations in time.
Specifically, the first beam splitter 30 is 5%: 95% light splitting, and the second beam splitter 40 is 50%: 50% spectral.
Specifically, the first optical network unit 31 and the second optical network unit 41 both adopt the H3C ET704-L series.
Specifically, the partial discharge detection device 50 uses a techmp partial discharge instrument, and since the data transmission amount generated during the operation is huge, the transmission bandwidth at the peak value is close to 10Mbps, and the transmission is not satisfied by an industrial bus, it needs to be transmitted in a passive optical network system.
Specifically, the output ends of the first optical splitter 30 and the second optical splitter 40 are connected to the first optical network unit 31 and the second optical network unit 41 respectively through single-mode optical fibers.
Specifically, the output ends of the first optical splitter 30 and the second optical splitter 40 are respectively provided with a splitting router (not shown), and the first optical splitter 30 and the second optical splitter 40 are respectively connected to the first optical network unit 31 and the second optical network unit 41 through the splitting routers.
The foregoing is a more detailed description of the present invention that is presented in conjunction with specific embodiments, and it is not to be understood that the specific embodiments of the present invention are limited to these descriptions. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.
Claims (10)
1. An EPON optical network system, comprising: the system comprises a monitoring processing center, a partial discharge server, a switch, a first optical splitter and a second optical splitter; the monitoring processing center is in communication connection with the partial discharge server; the partial discharge server and the switch are arranged in the transformer substation; the switch is connected with an input end optical fiber of the first optical splitter through a wavelength division multiplexer; the first optical splitter and the second optical splitter are respectively provided with two output ends, one output end of the first optical splitter is connected with the input end of the second optical splitter, and the other output end of the first optical splitter is connected with a plurality of first optical network units; two output ends of the second optical splitter are connected with a plurality of second optical network units; the first optical network unit and the second optical network unit are both connected with partial discharge detection equipment.
2. The EPON optical network system of claim 1, wherein the monitoring processing center is configured with a control center server, a display screen, a monitoring client, and a real-time monitoring platform, and the control center server is communicatively connected to the monitoring client and the real-time monitoring platform.
3. The EPON optical network system of claim 1, further comprising a remote power supply disposed within the substation; the remote power supply remotely supplies power to the first optical network unit, the second optical network unit and the local discharge detection equipment.
4. The EPON optical network system of claim 1, further comprising: the monitoring host, the partial discharge server and the switch are in communication connection; the monitoring host is connected with at least two collectors.
5. The EPON optical network system of claim 4, wherein the monitoring host is connected with two collectors, namely a first collector and a second collector; the first collector is connected with a cable joint temperature sensor and a current transformer; and the second collector is connected with a gas sensor and a harmful gas probe.
6. The EPON optical network system of claim 1, wherein the first optical splitter is a 50%: 50% light splitting, and the second light splitter is 5%: 95% spectral analysis.
7. The EPON optical network system of claim 1, wherein the first optical network unit and the second optical network unit both use the H3C ET704-L family.
8. The EPON optical network system of claim 1, wherein the partial discharge detection device employs a techmp partial discharge instrument.
9. The EPON optical network system of claim 1, wherein the output ends of the first optical splitter and the second optical splitter are respectively connected to the first optical network unit and the second optical network unit via a single-mode optical fiber.
10. The EPON optical network system of claim 1, wherein the output ends of the first optical splitter and the second optical splitter are each provided with a branching router, and the first optical network unit and the second optical network unit are connected via the branching routers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022169190.3U CN213094408U (en) | 2020-09-28 | 2020-09-28 | EPON optical network system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022169190.3U CN213094408U (en) | 2020-09-28 | 2020-09-28 | EPON optical network system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213094408U true CN213094408U (en) | 2021-04-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022169190.3U Active CN213094408U (en) | 2020-09-28 | 2020-09-28 | EPON optical network system |
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|---|---|
| CN (1) | CN213094408U (en) |
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2020
- 2020-09-28 CN CN202022169190.3U patent/CN213094408U/en active Active
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