CN105450484A - Realization method for timeslice isolation-based power terminal multi-service communication access system - Google Patents

Realization method for timeslice isolation-based power terminal multi-service communication access system Download PDF

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Publication number
CN105450484A
CN105450484A CN201510760720.2A CN201510760720A CN105450484A CN 105450484 A CN105450484 A CN 105450484A CN 201510760720 A CN201510760720 A CN 201510760720A CN 105450484 A CN105450484 A CN 105450484A
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China
Prior art keywords
optical
timeslice
service
isolation
line terminal
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CN201510760720.2A
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Chinese (zh)
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CN105450484B (en
Inventor
闫龙
操彦
张程炜
王剑锋
李霜冰
王建波
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State Grid Corp of China SGCC
State Grid Tianjin Electric Power Co Ltd
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State Grid Corp of China SGCC
State Grid Tianjin Electric Power Co Ltd
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Priority to CN201510760720.2A priority Critical patent/CN105450484B/en
Publication of CN105450484A publication Critical patent/CN105450484A/en
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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/2854—Wide area networks, e.g. public data networks
    • H04L12/2856—Access arrangements, e.g. Internet access
    • H04L12/2869—Operational details of access network equipments
    • H04L12/2878—Access multiplexer, e.g. DSLAM
    • H04L12/2887—Access multiplexer, e.g. DSLAM characterised by the offered subscriber services
    • H04L12/2889—Multiservice, e.g. MSAN
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • H04Q11/0067—Provisions for optical access or distribution networks, e.g. Gigabit Ethernet Passive Optical Network (GE-PON), ATM-based Passive Optical Network (A-PON), PON-Ring

Abstract

The invention provides a realization method for a timeslice isolation-based power terminal multi-service communication access system. The method comprises the steps of constructing a communication system; processing the downlink signal of an optical line terminal; processing the signal of an optical network unit; processing the uplink signal of the optical line terminal and the like. According to the technical scheme of the invention, the effect of a timeslice isolation-based power terminal multi-service communication access system is realized. Based on the timeslice isolation-based power EPON communication system carrying multiple services, the services of the power system at different security level requirements and different isolation requirements can be carried by the same set of communication system. Therefore, the network construction cost is reduced, and the fiber occupation is lowered.

Description

Based on the electric power terminal multi-service telecommunications access systems implementation method of timeslice isolation
Technical field
The invention belongs to technical field of power system communication, particularly relate to a kind of electric power terminal multi-service telecommunications access systems implementation method based on timeslice isolation.
Background technology
Current electric power system terminal communication access network construction principle is based on Fibre Optical Communication Technology, and wireless and power line carrier is important supplement.Electric power terminal communication access net carries related services such as comprising power distribution automation, power information collection, distributed power source, intelligent recharge and discharge station, the characteristic such as bandwidth demand, requirement of real-time of different business is different, above-mentioned business also need according to " electric power secondary system security protection regulation " requirement simultaneously, be divided into production control great Qu and management information great Qu business, especially the production control great Qu business such as power distribution automation should be transmitted on special passage, in physical layer and other Network Isolation.Due to the asynchronous communication network that EPON technology is based on Ethernet, the demand of electric power enterprise business isolation cannot be met at present, address this problem, just need to improve on EPON system design itself.
Summary of the invention
In order to solve the problem, the object of the present invention is to provide a kind of electric power terminal multi-service telecommunications access systems implementation method based on timeslice isolation.
In order to achieve the above object, the electric power terminal multi-service telecommunications access systems implementation method based on timeslice isolation provided by the invention comprises the following step performed in order:
Step 1) build communication system:
Build the communication system based on EPON network, described communication system comprises: optical line terminal, Optical Distribution Network and multiple optical network unit, wherein: optical line terminal is connected with multiple optical network unit by Optical Distribution Network;
Step 2) optical line terminal processes downstream signal:
By the production control great Qu process business module of optical line terminal inside and management information great Qu Service Processing Module completely independent, when business is descending, data are sent to PON mouth by crossover bus by certain Service Processing Module in above-mentioned optical line terminal, are then converted to light signal and send to optical network unit 3;
Step 3) optical network unit processes signal:
When the optical module of optical network unit receives signal, by buffer memory and pretreatment module, the subregion to signal judges, after judgement by data allocations to corresponding Service Processing Module, the signal back light module need uploaded after Service Processing Module is disposed carries out data upload, after uploading, empty the data that buffer area waits for future time sheet immediately;
Step 4) optical line terminal processes upward signal:
After uplink service signal enters optical line terminal, it judges the service identification in timeslice, and enters corresponding Service Processing Module by crossover bus and process; Now, EPON network enters future time sheet, starts the business transmitting-receiving of another safe great Qu, so hockets.
Described optical line terminal is arranged in transformer station or community switchgear house, is connected with the optical network unit in each power distribution station by Optical Distribution Network.
Described optical network unit is arranged on power business terminal equipment side, is connected with optical line terminal by Optical Distribution Network, realizes the access of electric power terminal communication service.
Described Optical Distribution Network is made up of the optical cable laid the same period with supply line.
The effect of the electric power terminal multi-service telecommunications access systems based on timeslice isolation provided by the invention:
Utilize the electric power EPON communication system of multiple service supporting based on timeslice isolation of the present invention, make different electric power safety class requirement, the power system service of insulation request carries by same set of communication system, thus reduce network construction cost and optical fiber takies.
Accompanying drawing explanation
Fig. 1 is the working mode figure of EPON network.
Fig. 2 is provided by the invention based on the inner schematic diagram of optical line terminal in the electric power terminal multi-service telecommunications access systems of timeslice isolation.
Fig. 3 is provided by the invention based on the inner schematic diagram of optical network unit in the electric power terminal multi-service telecommunications access systems of timeslice isolation.
Embodiment
Below in conjunction with the drawings and specific embodiments, the electric power terminal multi-service telecommunications access systems implementation method based on timeslice isolation provided by the invention is described in detail.
Electric power terminal multi-service telecommunications access systems implementation method based on timeslice isolation provided by the invention comprises the following step performed in order:
Step 1) build communication system:
Build the communication system based on EPON network, typical case's EPON system optical link full guard mode of operation as shown in Figure 1, described communication system comprises: optical line terminal (OLT) 1, Optical Distribution Network (ODN) 2 and multiple optical network unit (ONU) 3, wherein: optical line terminal 1 is connected with multiple optical network unit 3 by Optical Distribution Network 2;
Described optical line terminal 1 is arranged in transformer station or community switchgear house, is connected with the optical network unit 3 in each power distribution station by Optical Distribution Network 2.
Optical line terminal 1 is when carrying out signal transacting, and the business information of a production control great Qu Service Processing Module process for producing control great Qu of its inside, management information great Qu Service Processing Module only processes the business information of management information great Qu.Production control great Qu Service Processing Module is connected with electric power backbone communications by respective Ethernet interface with management information great Qu Service Processing Module, realizes data upload.
Described optical network unit 3 is arranged on power business terminal equipment side, is connected with optical line terminal 1 by Optical Distribution Network 2, realizes the access of electric power terminal communication service.
Optical network unit 3 is connected with power business terminal equipment by Ethernet interface; For ensureing the isolation of business, the Ethernet interface that the terminal equipment of different safe great Qu is different from optical network unit 3 respectively connects.Inner at optical network unit 3, the business information of production control great Qu Service Processing Module only process for producing control great Qu, management information great Qu Service Processing Module only processes the business information of management information great Qu.
Described Optical Distribution Network 2 is made up of the optical cable laid the same period with supply line, mode of operation adopts optical link full guard mode of operation or protects mode of operation hand in hand, also can adopt unprotect pattern.
The EPON networking model of native system with traditional on optical fiber networking mode is consistent, but when optical fiber link signal transmission, time domain is divided into the timeslice of loop cycle, and carry out data processing by independently Service Processing Module on optical line terminal 1 and optical network unit 3, thus realize the isolation in physical significance;
Step 2) optical line terminal processes downstream signal:
As shown in Figure 2, by the production control great Qu process business module of optical line terminal 1 inside and management information great Qu Service Processing Module completely independent, when business is descending, data are sent to PON mouth by crossover bus by certain Service Processing Module in above-mentioned optical line terminal 1, are then converted to light signal and send to optical network unit 3;
Step 3) optical network unit processes signal:
When the optical module of optical network unit 3 receives signal, according to the mode of Fig. 3, by buffer memory and pretreatment module, the subregion to signal judges, after judgement by data allocations to corresponding Service Processing Module, the signal back light module need uploaded after Service Processing Module is disposed carries out data upload, after uploading, empty the data that buffer area waits for future time sheet immediately;
Step 4) optical line terminal processes upward signal:
After uplink service signal enters optical line terminal 1, it judges the service identification in timeslice, and enters corresponding Service Processing Module by crossover bus and process; Now, EPON network enters future time sheet, starts the business transmitting-receiving of another safe great Qu, so hockets.
The Service Processing Module one_to_one corresponding of the Service Processing Module of different safe great Qu and the corresponding safe great Qu of optical line terminal 1 on described optical network unit 3, and distinguished by service identification.Data are shunted based on above-mentioned service identification by the buffer memory on the crossover bus on optical line terminal 1 and optical network unit 3 and pretreatment module, to make on optical link timeslice each time only allow the data of some safe great Qu to take, thus achieve the multi-service isolation bearing function based on a set of communication system.
The above embodiment is only one embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as limiting the scope of the invention.The explanation of above embodiment just understands core concept of the present invention for helping.In sum, this description should not be construed as limitation of the present invention.For the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.
Electric power terminal multi-service telecommunications access systems based on timeslice isolation provided by the invention, in conjunction with service identification, by time-domain being divided into the timeslice of loop cycle, carries out transfer of data using each timeslice as a sub-channels.In logic, each business takies different timeslices, and physically, different business takies physical channel in turn.For the business carried on different time sheet, some particular moments only have a kind of business of a timeslice to transmit, and time dimension thoroughly achieves the isolation of different business.This just for different business message is assigned with the transmission channel exclusively enjoyed, achieves the function of the multiple power business being born with insulation request in same communication system.

Claims (4)

1. based on an electric power terminal multi-service telecommunications access systems implementation method for timeslice isolation, it is characterized in that: the described electric power terminal multi-service telecommunications access systems implementation method based on timeslice isolation comprises the following step performed in order:
Step 1) build communication system:
Build the communication system based on EPON network, described communication system comprises: optical line terminal (1), Optical Distribution Network (2) and multiple optical network unit (3), wherein: optical line terminal (1) is connected with multiple optical network unit (3) by Optical Distribution Network (2);
Step 2) optical line terminal processes downstream signal:
By production control great Qu process business module inner for optical line terminal (1) and management information great Qu Service Processing Module completely independent, when business is descending, data are sent to PON mouth by crossover bus by certain Service Processing Module in above-mentioned optical line terminal (1), are then converted to light signal and send to optical network unit (3);
Step 3) optical network unit processes signal:
When the optical module of optical network unit (3) receives signal, by buffer memory and pretreatment module, the subregion to signal judges, after judgement by data allocations to corresponding Service Processing Module, the signal back light module need uploaded after Service Processing Module is disposed carries out data upload, after uploading, empty the data that buffer area waits for future time sheet immediately;
Step 4) optical line terminal processes upward signal:
After uplink service signal enters optical line terminal (1), it judges the service identification in timeslice, and enters corresponding Service Processing Module by crossover bus and process; Now, EPON network enters future time sheet, starts the business transmitting-receiving of another safe great Qu, so hockets.
2. the electric power terminal multi-service telecommunications access systems implementation method based on timeslice isolation according to claim 1, it is characterized in that: described optical line terminal (1) is arranged in transformer station or community switchgear house, be connected with the optical network unit (3) in each power distribution station by Optical Distribution Network (2).
3. the electric power terminal multi-service telecommunications access systems implementation method based on timeslice isolation according to claim 1, it is characterized in that: described optical network unit (3) is arranged on power business terminal equipment side, be connected with optical line terminal (1) by Optical Distribution Network (2), realize the access of electric power terminal communication service.
4. the electric power terminal multi-service telecommunications access systems implementation method based on timeslice isolation according to claim 1, is characterized in that: described Optical Distribution Network (2) is made up of the optical cable laid the same period with supply line.
CN201510760720.2A 2015-11-09 2015-11-09 Electric power terminal multi-service telecommunications access systems implementation method based on timeslice isolation Active CN105450484B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107734499A (en) * 2017-07-28 2018-02-23 国网信通亿力科技有限责任公司 Suitable for the wireless isolation base station of the transregional Integrated services access of electric power
WO2020244634A1 (en) * 2019-06-06 2020-12-10 中国移动通信有限公司研究院 Optical module, management and control information processing method, and communication system
CN107734499B (en) * 2017-07-28 2024-04-12 国网信通亿力科技有限责任公司 Wireless isolation base station suitable for electric power cross-region integrated service access

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107734499A (en) * 2017-07-28 2018-02-23 国网信通亿力科技有限责任公司 Suitable for the wireless isolation base station of the transregional Integrated services access of electric power
CN107734499B (en) * 2017-07-28 2024-04-12 国网信通亿力科技有限责任公司 Wireless isolation base station suitable for electric power cross-region integrated service access
WO2020244634A1 (en) * 2019-06-06 2020-12-10 中国移动通信有限公司研究院 Optical module, management and control information processing method, and communication system
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