CN205123735U - Down signal processing system of distribution automation system - Google Patents
Down signal processing system of distribution automation system Download PDFInfo
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- CN205123735U CN205123735U CN201520952272.1U CN201520952272U CN205123735U CN 205123735 U CN205123735 U CN 205123735U CN 201520952272 U CN201520952272 U CN 201520952272U CN 205123735 U CN205123735 U CN 205123735U
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- 239000013307 optical fiber Substances 0.000 claims abstract description 14
- 230000003287 optical effect Effects 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims description 19
- 230000008569 process Effects 0.000 claims description 17
- 238000004891 communication Methods 0.000 abstract description 21
- 238000010276 construction Methods 0.000 abstract description 7
- 239000000835 fiber Substances 0.000 abstract 2
- 230000005540 biological transmission Effects 0.000 description 6
- 230000005611 electricity Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000007726 management method Methods 0.000 description 2
- 230000006855 networking Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The utility model relates to a down signal processing system of distribution automation system comprises optical fiber communication system, optical network unit equipment, headend, relay, terminal equipment, coupler, the utility model discloses can realize fiber communication and carrier communication's hybrid network, therefore can reduce laying of optic fibre in the communication line construction, and then reduce the communication line construction cost, do simultaneously and accelerate the smart power grids construction progress.
Description
Technical field
The utility model relates to a kind of communication signal process system, particularly a kind of electrical power distribution automatization system downstream signal treatment system.
Background technology
Electrical power distribution automatization system is the main contents that intelligent grid is built.Intelligent grid is on open and interconnected information pattern basis, by loading system digital device and upgrading electricity grid network management system, realize the full-range intellectuality of power industry, informationization, the classification interactive managements such as generating, transmission of electricity, power supply, electricity consumption, client's sale of electricity, electrical network graded dispatching, integrated service, optical fiber communication is then Primary communication mode in electrical power distribution automatization system transformation.But see with practical conditions, for the region of not reserved communication pipe, the cost of investment of newly-built optical fiber communication facility is comparatively large, constructional difficulties; For the region of reserved communication pipe, due to reasons such as surface subsidence, other pipeline constructions, there is the pipeline of 20%-30% obstructed, cause optical fiber to pass.Due to these reasons, the cost that single use optical fiber communication mode carries out networking is higher.
Summary of the invention
In order to solve the above-mentioned problems in the prior art, the utility model provides a kind of need and lays the electrical power distribution automatization system downstream signal treatment system that optical-fibre channel just can solve data communication comprehensively.
The purpose of this utility model is achieved in that a kind of electrical power distribution automatization system downstream signal treatment system, is made up of, it is characterized in that optical fiber telecommunications system, device of optical network unit, headend, trunking, terminal equipment, coupler:
A. device of optical network unit is connected by netting twine with between the headend being provided with carrier signal process chip;
B. headend is connected with the trunking being provided with gain process chip through cable, and headend and trunking are all by coupler stube cable;
C. trunking is connected with the terminal equipment being provided with carrier signal process chip through cable, and trunking and terminal equipment are all by coupler stube cable;
D. terminal equipment is connected with user terminal.
Described trunking is also provided with carrier signal process chip, and trunking is directly connected with user terminal.
Described coupler is connected on the cable at electrical network switching station two ends.
Use downstream signal treatment system of the present utility model, docked with optical fiber telecommunications system by device of optical network unit, receive with the downlink data of form of light waves transmission and send digital signal, then by headend receiving digital signals, and be converted into the carrier signal that can transmit in the cable, by trunking, gain is carried out to this carrier signal simultaneously, to make up the loss in transmitting procedure, above-mentioned carrier signal is received eventually through terminal equipment, and be converted into digital signal and be sent to user terminal, the mixed networking of optical fiber communication and carrier communication can be realized, thus laying of optical fiber can be reduced in communication line construction, and then reduce communication line construction cost, also can accelerate intelligent grid construction progress simultaneously.
Accompanying drawing explanation
Fig. 1 is structured flowchart of the present utility model;
Fig. 2 is the utility model embodiment schematic diagram.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in Figure 1, 2, the utility model is made up of optical fiber telecommunications system, device of optical network unit 1, headend 2, trunking 3, terminal equipment 4, coupler 10.
The light signal that device of optical network unit sends for receiving optical fiber telecommunications system, and light signal is converted to digital signal, then send digital signal.Wherein, device of optical network unit and ONU (OpticalNetworkUnit); The light signal that optical fiber telecommunications system sends can be OLT(opticallineterminal) with the downlink communication data of the light wave form of broadcast mode transmission, after conversion, device of optical network unit can send the digital signal meeting IEEE802.3 standard, for representing downlink communication data.
Headend is connected with device of optical network unit by netting twine, for receiving digital signals, and digital signal is converted to carrier signal sends.Headend can be the equipment being provided with carrier signal process chip, such as electric power modem, its effect converts the digital signal meeting IEEE802.3 standard to be adapted at power line transmission analog electrical signal, for representing downlink communication data through process.Particularly, the digital signal meeting IEEE802.3 standard by headend port accepts passes through encryption, coding, modulation treatment, is converted to the carrier wave analog signal being adapted at power cable transmission.
Trunking is connected with headend by cable, for reception carrier signal, and carries out gain to carrier signal and sends.Because carrier signal is a kind of electromagnetic signal in essence, so itself can decay to some extent along with the increase of transmission range.Trunking can be the equipment being provided with gain process chip, such as electric power modem, and it can carry out signal gain to carrier signal, makes up the signal signal attenuation of long range propagation in the cable, compensate for losses.
Terminal equipment is connected with trunking by cable, for the carrier signal after receiving gain, and is converted into digital signal, sends digital signal to first user terminal 5.Terminal equipment can be the equipment being provided with carrier signal process chip, such as electric power modem, and its effect converts carrier signal to be adapted at transmitting in netting twine digital signal, for representing downlink communication data through process.Particularly, namely demodulation, decryption processing are carried out to the carrier signal that this device port receives, be converted to the digital signal meeting IEEE802.3 standard, then send it to the process of transmitting that first user terminal completes downlink data.
Because also may there be the user terminal needing downlink data receiving trunking position, so trunking can also be used for carrier signal to be converted to digital signal, and be sent to the second user terminal 6, namely trunking is provided with carrier signal process chip, carrier signal for sending head end device port carries out demodulation, decryption processing, be converted to the digital signal meeting IEEE802.3 standard, then send it to the second user terminal, complete the process of transmitting of downlink data.
The downstream signal treatment system of the present embodiment also comprises the first coupler 10-1 and the second coupler 10-2.Headend is connected with the first end of the first cable 11-1 by the first coupler, and trunking is connected with the second end of the first cable by the second coupler.Wherein the first coupler is used for described carrier signal to be coupled in described first cable; Second coupler is used for the carrier signal in the first cable to be coupled in trunking.
The present embodiment also comprises: the 3rd coupler 10-3 and the 4th coupler 10-4.Trunking is connected with the first end of the second cable 11-2 by the 3rd coupler, and terminal equipment is connected with the second end of the second cable by the 4th coupler.Wherein the 3rd coupler is used for the carrier signal after gain to be coupled in the second cable; 4th coupler is used for the carrier signal after gain in the second cable to be coupled in terminal equipment.
Coupler is arranged on the two ends of a cable respectively, its effect is coupling and the high_voltage isolation of signal, namely the carrier signal sent by equipment by coupling is coupled on cable and transmits, coupler installs on original cable line, do not need to change circuit, can not destroy circuit yet.
If be provided with switching station 12 in electrical network, then the position of coupler should stride across switching station, to avoid carrier signal in transmitting procedure directly through switching station, is subject to certain interference and has influence on the quality of signal.
Claims (3)
1. an electrical power distribution automatization system downstream signal treatment system, is made up of optical fiber telecommunications system, device of optical network unit, headend, trunking, terminal equipment, coupler, it is characterized in that:
A. device of optical network unit is connected by netting twine with between the headend being provided with carrier signal process chip;
B. headend is connected with the trunking being provided with gain process chip through cable, and headend and trunking are all by coupler stube cable;
C. trunking is connected with the terminal equipment being provided with carrier signal process chip through cable, and trunking and terminal equipment are all by coupler stube cable;
D. terminal equipment is connected with user terminal.
2. a kind of electrical power distribution automatization system downstream signal treatment system according to claim 1, it is characterized in that described trunking is also provided with carrier signal process chip, and trunking is directly connected with user terminal.
3. a kind of electrical power distribution automatization system downstream signal treatment system according to claim 1, is characterized in that described coupler is connected on the cable at electrical network switching station two ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520952272.1U CN205123735U (en) | 2015-11-26 | 2015-11-26 | Down signal processing system of distribution automation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520952272.1U CN205123735U (en) | 2015-11-26 | 2015-11-26 | Down signal processing system of distribution automation system |
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| Publication Number | Publication Date |
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| CN205123735U true CN205123735U (en) | 2016-03-30 |
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| CN201520952272.1U Active CN205123735U (en) | 2015-11-26 | 2015-11-26 | Down signal processing system of distribution automation system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105306103A (en) * | 2015-11-26 | 2016-02-03 | 国网辽宁省电力有限公司大连供电公司 | Processing system for downlink signal of power distribution automation system |
| CN106130642A (en) * | 2016-09-05 | 2016-11-16 | 国网辽宁省电力有限公司大连供电公司 | A kind of communication system |
-
2015
- 2015-11-26 CN CN201520952272.1U patent/CN205123735U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105306103A (en) * | 2015-11-26 | 2016-02-03 | 国网辽宁省电力有限公司大连供电公司 | Processing system for downlink signal of power distribution automation system |
| CN106130642A (en) * | 2016-09-05 | 2016-11-16 | 国网辽宁省电力有限公司大连供电公司 | A kind of communication system |
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