CN105679007A - Transformer station data transmission method and apparatus thereof - Google Patents
Transformer station data transmission method and apparatus thereof Download PDFInfo
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- CN105679007A CN105679007A CN201511031484.7A CN201511031484A CN105679007A CN 105679007 A CN105679007 A CN 105679007A CN 201511031484 A CN201511031484 A CN 201511031484A CN 105679007 A CN105679007 A CN 105679007A
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C23/00—Non-electrical signal transmission systems, e.g. optical systems
- G08C23/06—Non-electrical signal transmission systems, e.g. optical systems through light guides, e.g. optical fibres
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/25—Arrangements specific to fibre transmission
- H04B10/2507—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion
- H04B10/2543—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion due to fibre non-linearities, e.g. Kerr effect
- H04B10/2563—Four-wave mixing [FWM]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B2210/00—Indexing scheme relating to optical transmission systems
- H04B2210/07—Monitoring an optical transmission system using a supervisory signal
- H04B2210/078—Monitoring an optical transmission system using a supervisory signal using a separate wavelength
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B2210/00—Indexing scheme relating to optical transmission systems
- H04B2210/25—Distortion or dispersion compensation
- H04B2210/258—Distortion or dispersion compensation treating each wavelength or wavelength band separately
Abstract
The invention relates to a transformer station data transmission method and an apparatus thereof. The method comprises the following steps: identifying the types of messages to be sent, respectively transiting the messages to be sent into light signals with different wavelengths, combining the light signals with different wavelengths to obtain a combined light signal, and transmitting the combined light signal. The types of the messages are identified through the transformer station data transmission method when various types of the messages to be sent exist, the various types of the messages are respectively transited into the light signals with different wavelengths in order to distinguish different types of the messages, the light signals with different wavelengths are combined to obtain the combined light signal, and the combined light signal is transmitted through an optical fiber, so transmission of various messages among the electric devices of a transformer station is realized through the one optical fiber without separate transmission of all the messages through a plurality of optical fibers, thereby the quantity of the optical fibers for transmission is reduced.
Description
Technical field
The present invention relates to power domain, particularly to a kind of substation data transmission method and device.
Background technology
Along with development and the progress of Substation Automation System, due to the application of information digitalization, digital transformer substation is that various senior application provides the foundation, and has become as the Main way of Substation Automation System development. After transformer station's digitized information layered; the information exchange of process layer and bay device; instead of the cable between tradition transforming plant primary equipment (equipment such as ac sensor and chopper) and secondary device (equipment such as relay protection and automation equipment) to connect, Ye Yao inheriting tradition transformer station is for the requirement of these electrical connection high reliability and safety simultaneously.
It is the Topology connection realizing process layer and bay device with switch at the beginning of digital transformer substation design, relies both on timing device and realize unlike signal time alignment section. Owing to switch and timing device are likely to become the short slab of security reliability, mode that domestic creationary employing " directly adopts straight jumping ", namely the mode of critical data point-to-point connection between process layer and bay device, avoids the short slab of the security reliability of switch and timing device. But point-to-point connection brings another engineering problem, namely digital transformer substation connection number of fibers is too much.
Summary of the invention
Based on this, it is necessary to for the problem that the number of fibers of transformer station is more, it is provided that a kind of substation data transmission method that can reduce number of fibers and device.
A kind of substation data transmission method, comprises the following steps:
Obtain Substation Electric Equipment message to be sent, identify the type of message of described message to be sent;
According to described type of message, described message to be sent is respectively converted into the optical signal of different wave length;
The optical signal of described different wave length is merged, it is thus achieved that combined light signal;
Described combined light signal is transmitted.
Wherein in an embodiment, described message to be sent includes SV message and GOOSE message;
Described according to described type of message, the step of the optical signal that described message to be sent is respectively converted into different wave length includes:
Described SV message is converted to the optical signal that wavelength is 1550 nanometers;
Described GOOSE message is converted to the optical signal that wavelength is 1310 nanometers.
Wherein in an embodiment, also include after the described step that described combined light signal is transmitted:
Receive described combined light signal, and described combined light signal is decomposed, it is thus achieved that the optical signal after the decomposition of different wave length;
Wavelength according to optical signal, is respectively converted into different types of message by the optical signal after described decomposition.
Wherein in an embodiment, described message to be sent includes SV message and GOOSE message, and the optical signal of described different wave length includes the optical signal that wavelength is 1550 nanometers and the optical signal that wavelength is 1310 nanometers;
The described combined light signal of described reception, and described combined light signal is decomposed, it is thus achieved that the step of the optical signal after the decomposition of different wave length particularly as follows:
Receive described combined light signal, and described combined light signal is decomposed, it is thus achieved that described wavelength is the optical signal of 1550 nanometers and optical signal that described wavelength is 1310 nanometers.
Wherein in an embodiment, the described wavelength according to optical signal, the step that the optical signal after described decomposition is converted to different types of message is included:
The optical signal that described wavelength is 1550 nanometers is converted to described SV message;
The optical signal that described wavelength is 1310 nanometers is converted to described GOOSE message.
The present invention also provides for a kind of substation data transmitting device, and including the first optic module and splicer, described first optic module is connected with described splicer, and described first optic module is also connected with the processor of Substation Electric Equipment.
Described processor obtains Substation Electric Equipment message to be sent, identify the type of message of described message to be sent, and described message to be sent is transmitted separately to the first optic module, different types of described message to be sent is respectively converted into the optical signal of different wave length by described first optic module, and by the optical signal transmission of described different wave length to described splicer, the optical signal of described different wave length is merged by described splicer, obtain combined light signal, and described combined light signal is transmitted.
Wherein in an embodiment, described message to be sent includes SV message and GOOSE message, described first optic module includes the first fiber unit and the second fiber unit, described first fiber unit is connected with described processor and described splicer respectively, described second fiber unit is connected with described processor and described splicer respectively, described processor is by described SV message transmissions to described first fiber unit, by described GOOSE message transmission to described second fiber unit, described SV message is converted to the optical signal that wavelength is 1550 nanometers by described first fiber unit, and by optical signal transmission that described wavelength is 1550 nanometers to described splicer, described GOOSE message is converted to the optical signal that wavelength is 1310 nanometers by described second fiber unit, and by optical signal transmission that described wavelength is 1310 nanometers to described splicer.
Wherein in an embodiment, above-mentioned substation data transmitting device also includes beam splitter and the second optic module, and described beam splitter is connected with described splicer and described second optic module respectively;
Described beam splitter receives the described combined light signal of described splicer transmission, and described combined light signal is decomposed, obtain the optical signal after the decomposition of different wave length, and by the optical signal transmission after described decomposition to described second optic module, described second optic module wavelength according to optical signal, is converted to different types of message by the optical signal after described decomposition.
Wherein in an embodiment, described message to be sent includes SV message and GOOSE message, described first optic module includes the first fiber unit and the second fiber unit, described first fiber unit is connected with described processor and described splicer respectively, described second fiber unit is connected with described processor and described splicer respectively, described processor is by described SV message transmissions to described first fiber unit, by described GOOSE message transmission to described second fiber unit, described SV message is converted to the optical signal that wavelength is 1550 nanometers by described first fiber unit, and by optical signal transmission that described wavelength is 1550 nanometers to described splicer, described GOOSE message is converted to the optical signal that wavelength is 1310 nanometers by described second fiber unit, and by optical signal transmission that described wavelength is 1310 nanometers to described splicer, described beam splitter receives described combined light signal, and described combined light signal is decomposed, obtain the optical signal that described wavelength is 1550 nanometers and the optical signal that described wavelength is 1310 nanometers.
Wherein in an embodiment, described second optic module includes the 3rd fiber unit and the 4th fiber unit, described 3rd fiber unit and described 4th fiber unit are connected with described beam splitter respectively, the optical signal that described wavelength is 1550 nanometers that described 3rd fiber unit obtains after being decomposed by described beam splitter is converted to described SV message, and the optical signal that described wavelength is 1310 nanometers that described 4th fiber unit obtains after being decomposed by described beam splitter is converted to described GOOSE message.
Above-mentioned substation data transmission method and device, first identify the type of message of message to be sent, according to type of message, message to be sent is respectively converted into the optical signal of different wave length, and the optical signal of different wave length is merged, it is thus achieved that combined light signal is transmitted. by above-mentioned substation data transmission method and device, when there being polytype message to be sent, type of message is identified, and all types of messages is respectively converted into the optical signal of different wave length, thus different types of message can be distinguished, and the optical signal of different wave length merged obtain combined light signal, it can be transmitted by combined light signal by an optical fiber, the transmission of multiple message between the electrical equipment of transformer station can be realized thereby through an optical fiber, without respectively every kind of message to be carried out separately transmission by multifiber, thus reducing the number of fibers being transmitted.
Accompanying drawing explanation
Fig. 1 is the flow chart of the substation data transmission method of a kind of embodiment;
Fig. 2 is the flow chart of the substation data transmission method of another embodiment;
Fig. 3 is the flow chart of the substation data transmission method of another embodiment;
Fig. 4 is the module map of the substation data transmitting device of a kind of embodiment;
Fig. 5 is the module map of the substation data transmitting device of another embodiment;
Fig. 6 is the module map of the substation data transmitting device of another embodiment.
Detailed description of the invention
Refer to Fig. 1, it is provided that the substation data transmission method of a kind of embodiment, comprise the following steps:
S100: obtain Substation Electric Equipment message to be sent, identify the type of message of message to be sent.
In actual applications, Substation Electric Equipment can produce or acquire the message needing to send, Substation Electric Equipment is provided with processor, after processor obtains Substation Electric Equipment message to be sent, process accordingly, namely identify the type of message of message to be sent, follow-up different types of message is carried out different process.
S200: according to type of message, message to be sent is respectively converted into the optical signal of different wave length.
In transformer station, need message transmissions to be sent in the electrical equipment of transmitting terminal to the electrical equipment of receiving terminal, but, in optical fiber transmission line, optical signal can only be transmitted, thus needing the message in electrical equipment is converted to the optical signal that can transmit in a fiber, be converted to optical signal to be sent by message to be sent in electrical equipment. In actual applications, by optic module, message to be sent in electrical equipment is converted to optical signal to be sent, and message to be sent is likely to comprise multiple, it is made a distinction the message obtained after distinguishing, namely after obtaining different types of message, message after distinguishing is changed respectively, obtains the optical signal of different wave length.
S300: the optical signal of different wave length is merged, it is thus achieved that combined light signal.
After obtaining the optical signal of different wave length, in order to reduce the number of fibers of transmission optical signal, first optical signal to be sent is merged into a branch of combined light signal, thus obtaining combined light signal. In actual applications, different optical signals can be merged by splicer and obtain combined light signal.
S400: combined light signal is transmitted.
After splicer carries out optical signal merging, it is combined optical signal and is transmitted, owing to combined light signal is the merging to multiple optical signal, when being transmitted, only need an optical fiber can realize the transmission of multiple optical signal.
Above-mentioned substation data transmission method, first identifies the type of message of message to be sent, according to type of message, message to be sent is respectively converted into the optical signal of different wave length, and the optical signal of different wave length is merged, it is thus achieved that combined light signal is transmitted. by above-mentioned substation data transmission method, when there being polytype message to be sent, type of message is identified, and all types of messages is respectively converted into the optical signal of different wave length, thus different types of message can be distinguished, and the optical signal of different wave length merged obtain combined light signal, it can be transmitted by combined light signal by an optical fiber, the transmission of multiple message between the electrical equipment of transformer station can be realized thereby through an optical fiber, without respectively every kind of message to be carried out separately transmission by multifiber, thus reducing the number of fibers being transmitted.
Refer to Fig. 2, wherein in an embodiment, also include after the step S400 that combined light signal is transmitted:
S500: receive combined light signal, and be combined optical signal and decompose, it is thus achieved that the optical signal after the decomposition of different wave length.
S600: the wavelength according to optical signal, is converted to different types of message by the optical signal after decomposing.
By combined light signal by a fiber-optic transfer after optical signal is merged by splicer, the beam splitter of receiving terminal receives this combined light signal, owing to the electrical equipment of receiving terminal is to need the message that the electrical equipment to transmitting terminal sends to resolve and analyze, thus at the combined light signal obtained, need and it is decomposed, and the optical signal after decomposing is converted to message, thus the message that the electrical equipment obtaining transmitting terminal sends, its message being converted to is resolved and analyzes, thus would know that the content that the electrical equipment of transmitting terminal sends. in actual applications, utilize beam splitter to and be combined optical signal and decompose, it is thus achieved that the optical signal after decomposition, and utilize optic module that the optical signal after decomposing is converted to message.
By the optical signal after the decomposition of different wave length can be obtained after being combined optical signal and decomposing, and the wavelength according to optical signal, optical signal after decomposing is converted to different types of message, beam splitter directly accepts the combined light signal after splicer merges, and it is decomposed, and the optical signal after decomposing is separately converted to different types of message, it is achieved the transmission of the dissimilar message between equipment. It is that combined light signal is decomposed at receiving terminal, thus obtaining the optical signal that transmitting terminal is to be sent, by different signals can be distinguished after decomposing, namely unlike signal is physically distinguished, it is not necessary to carried out the message forwarding acquisition to want as traditional transmission method by switch, do not reduce the reliability of point-to-point connection, do not increase message transmissions time delay, ensure that whole group of movement time does not increase accordingly, be transmitted without by multifiber, reduce number of fibers.
Referring to Fig. 3, wherein in an embodiment, message to be sent includes SV message and GOOSE message.
Digital transformer substation is generally made up of successively three levels, i.e. process layer, wall and station level model. The equipment of process layer refers generally to primary equipment, also referred to as process layer devices, for instance; the equipment such as ac sensor and chopper, the equipment of wall refers generally to secondary device, for instance; the equipment such as protective relaying device and measure and control device, station level equipment refers to the equipment for supervision interval layer and process layer. SV (SampledValue is adopted between process layer and wall and between wall, sampled value) message and GOOSE (GenericObject-OrientedSubstationEvent, transformer substation case towards general object) message carries out the transmission of the information such as sampled data, on off state and control command, thus, in transformer station, when process layer and wall need to carry out data transmission, namely it is the message field to be sent in electrical equipment is divided into SV message and GOOSE message is transmitted.
According to type of message, the step S200 of the optical signal that message to be sent is respectively converted into different wave length is included:
S210: SV message is converted to the optical signal that wavelength is 1550 nanometers.
S220: GOOSE message is converted to the optical signal that wavelength is 1310 nanometers.
When utilizing optical fiber to be transmitted, it is necessary to message is converted into optical signal and just can be transmitted, utilize optic module that SV message is converted to the optical signal that wavelength is 1550 nanometers, GOOSE message is converted to the optical signal that wavelength is 1310 nanometers. Then optical signal that wavelength is 1550 nanometers and optical signal that wavelength is 1310 nanometers are merged and obtain combined light signal, and this combined light signal is transmitted.
Wherein in an embodiment, receive combined light signal, and be combined optical signal and decompose, it is thus achieved that the step S600 of the optical signal after the decomposition of different wave length particularly as follows:
Receive combined light signal, and be combined optical signal and decompose, it is thus achieved that wavelength is the optical signal of 1550 nanometers and optical signal that wavelength is 1310 nanometers.
Message owing to sending at the electrical equipment of transmitting terminal includes SV message and Goose message, optical signal that wavelength is 1550 nanometers and the optical signal that wavelength is 1310 nanometers is obtained after changing, thus after beam splitter receives the combined light signal of transmission, the optical signal after it is decomposed includes the optical signal that wavelength is 1550 nanometers and the optical signal that wavelength is 1310 nanometers.
Please continue to refer to Fig. 3, wherein in an embodiment, making a block booking according to optical signal, the step S600 that the optical signal after decomposition is converted to different types of message is included:
S610: the optical signal that wavelength is 1550 nanometers is converted to SV message.
S620: the optical signal that wavelength is 1310 nanometers is converted to GOOSE message.
Beam splitter is combined after optical signal decomposes, optic module is utilized to obtain SV message and Goose message after the optical signal that wavelength is 1550 nanometers that obtains after decomposing and optical signal that wavelength is 1310 nanometers are changed respectively, it is achieved the reception of the message that the electrical equipment of transmitting terminal is sent.
After optical signal is decomposed and is converted to message by beam splitter, obtain SV message and Goose message, different signals can be distinguished thereby through after decomposing, namely SV message and Goose message are physically distinguished, it is not necessary to carried out the message forwarding acquisition to want as traditional transmission method by switch, do not reduce the reliability of point-to-point connection, do not increase message transmissions time delay, ensure that whole group of movement time does not increase accordingly, be transmitted without by multifiber, reduce number of fibers.
Refer to Fig. 4, the present invention also provides for the substation data transmitting device of a kind of embodiment, including the first optic module 100 and splicer 200, the first optic module 100 is connected with splicer 200, and the first optic module 100 is also connected with the processor 300 in the electrical equipment of transformer station. Processor 300 obtains Substation Electric Equipment message to be sent, identify the type of message of message to be sent, and message to be sent is transmitted separately to the first optic module 100, different types of message to be sent is respectively converted into the optical signal of different wave length by the first optic module 100, and by the optical signal transmission of different wave length to splicer 200, the optical signal of different wave length is merged by splicer 200, it is thus achieved that combined light signal, and is transmitted by combined light signal.
Splicer 200 is the device merged together by the optical signal of two or more different wave lengths, i.e. multiplexer, also known as wave multiplexer, optical signal after converging is coupled in same optical fiber of optical link and is transmitted, beam splitter 400 is the device separated by the optical signal of different wave length, i.e. demultiplexer, is also called channel-splitting filter. Optic module is generally made up of opto-electronic device, functional circuit and optical interface etc., opto-electronic device includes launching and receiving two parts, wherein, emitting portion is the modulation optical signal that the signal of telecommunication of input one constant bit rate launches respective rate through internal driving chip process rear drive semiconductor laser or light emitting diode, with luminous power automatic control circuit inside it, the optical signal power of output is made to remain stable for. Reception part be a constant bit rate optical signal input module after be converted to the signal of telecommunication by optical detection diode, after preamplifier export phase code rate the signal of telecommunication. The effect of optic module is exactly opto-electronic conversion, and emitting portion converts electrical signals into optical signal, and by optical fiber transmission, reception part converts the signal of telecommunication to optical signal. In the present embodiment, processor 300 is CPU (CentralProcessingUnit, central processing unit) or FPGA (Field-ProgrammableGateArray, field programmable gate array).
In actual applications, Substation Electric Equipment can produce or acquire the message needing to send, message to be sent is likely to comprise multiple, Substation Electric Equipment is provided with processor 300, after processor 300 obtains Substation Electric Equipment message to be sent, process accordingly, namely identify the type of message of message to be sent, follow-up different types of message is carried out different process. In optical fiber transmission line, optical signal can only be transmitted, thus needing the message in electrical equipment is converted to the optical signal that can transmit in a fiber, namely by the processor 300 in electrical equipment by the message transmissions after differentiation to the first optic module 100, the different wave length optical signal that the first optic module 100 is respectively converted into. In order to reduce the number of fibers of transmission optical signal, by splicer 200, optical signal to be sent need to be merged into a branch of combined light signal, thus obtaining combined light signal, after carrying out optical signal merging, it is combined optical signal to be transmitted, owing to combined light signal is the merging to multiple optical signal, when being transmitted, only need an optical fiber can realize the transmission of multiple optical signal.
Above-mentioned substation data transmitting device, first identifies the type of message of message to be sent, according to type of message, message to be sent is respectively converted into the optical signal of different wave length, and the optical signal of different wave length is merged, it is thus achieved that combined light signal is transmitted. by above-mentioned substation data transmitting device, when there being polytype message to be sent, type of message is identified, and all types of messages is respectively converted into the optical signal of different wave length, thus different types of message can be distinguished, and the optical signal of different wave length merged obtain combined light signal, it can be transmitted by combined light signal by an optical fiber, the transmission of multiple message between the electrical equipment of transformer station can be realized thereby through an optical fiber, without respectively every kind of message to be carried out separately transmission by multifiber, thus reducing the number of fibers being transmitted.
Referring to Fig. 5, wherein in an embodiment, above-mentioned substation data transmitting device also includes beam splitter 400 and the second optic module 500, and beam splitter 400 is connected with splicer 200 and the second optic module 500 respectively. Beam splitter 400 receives the combined light signal of splicer 200 transmission, and be combined optical signal and decompose, obtain the optical signal after the decomposition of different wave length, and by the optical signal transmission after decomposition to the second optic module 500, second optic module 500 wavelength according to optical signal, is converted to different types of message by the optical signal after decomposing.
Combined light signal is transmitted after being merged by multiple optical signal by splicer 200 by an optical fiber, owing to the electrical equipment of receiving terminal is to need the message that the electrical equipment to transmitting terminal sends to resolve and analyze, thus the combined light signal obtained at beam splitter 400, need and it is decomposed, and by the second optic module 500, the optical signal after decomposing is converted to message, thus the message that the electrical equipment obtaining transmitting terminal sends, its message being converted to is resolved and analyzes, thus would know that the content that the electrical equipment of transmitting terminal sends.
By the optical signal after the decomposition of different wave length can be obtained after being combined optical signal and decomposing, and the wavelength according to optical signal, optical signal after decomposing is converted to different types of message, beam splitter 400 directly accepts the combined light signal after splicer 200 merges, and it is decomposed, and the optical signal after decomposing is separately converted to different types of message, it is achieved the transmission of the dissimilar message between equipment. It is that combined light signal is decomposed at receiving terminal, thus obtaining the optical signal that transmitting terminal is to be sent, by different signals can be distinguished after decomposing, namely unlike signal is physically distinguished, it is not necessary to carried out the message forwarding acquisition to want as traditional transmission method by switch, do not reduce the reliability of point-to-point connection, do not increase message transmissions time delay, ensure that whole group of movement time does not increase accordingly, be transmitted without by multifiber, reduce number of fibers.
Splicer 200 and beam splitter 400 may be disposed at outside electrical equipment respectively, for saving space, it is achieved equipment miniaturization, it is possible to splicer 200 and beam splitter 400 are arranged at inside electric appliance, realize with board form.
Referring to Fig. 6, wherein in an embodiment, message to be sent includes SV message and GOOSE message. first optic module 100 includes the first fiber unit 110 and the second fiber unit 120, first fiber unit 110 is connected with processor 300 and conjunction light respectively, second fiber unit 120 is connected with processor 300 and splicer 200 respectively, processor 300 is by SV message transmissions to the first fiber unit 110, by GOOSE message transmission to the second fiber unit 120, SV message is converted to the optical signal that wavelength is 1550 nanometers by the first fiber unit 110, and by optical signal transmission that wavelength is 1550 nanometers to splicer 200, GOOSE message is converted to the optical signal that wavelength is 1310 nanometers by the second fiber unit 120, and by optical signal transmission that wavelength is 1310 nanometers to splicer 200, the optical signal that wavelength is 1550 nanometers and the optical signal that wavelength is 1310 nanometers are merged by splicer 200, obtain combined light signal.
When utilizing optical fiber to be transmitted, need that message is converted into optical signal just can be transmitted, utilize the first fiber unit 110 that SV message is converted to the optical signal that wavelength is 1550 nanometers, GOOSE message is converted to the optical signal that wavelength is 1310 nanometers by the second fiber unit 120, then utilize splicer 200 optical signal that wavelength is 1550 nanometers and optical signal that wavelength is 1310 nanometers to be merged and obtain combined light signal, and this combined light signal is transmitted.
Wherein in an embodiment, beam splitter 400 receives combined light signal, and is combined optical signal and decomposes, it is thus achieved that wavelength is the optical signal of 1550 nanometers and optical signal that wavelength is 1310 nanometers.
Message owing to sending at the electrical equipment of transmitting terminal includes SV message and Goose message, optical signal that wavelength is 1550 nanometers and the optical signal that wavelength is 1310 nanometers is obtained after changing, thus after beam splitter 400 receives the combined light signal of transmission, the optical signal after it is decomposed includes the optical signal that wavelength is 1550 nanometers and the optical signal that wavelength is 1310 nanometers.
Wherein in an embodiment, second optic module 500 includes the 3rd fiber unit 510 and the 4th fiber unit, 3rd fiber unit 510 and the 4th fiber unit are connected with beam splitter 400 respectively, the optical signal that wavelength is 1550 nanometers that 3rd fiber unit 510 obtains after being decomposed by beam splitter 400 is converted to SV message, and the optical signal that wavelength is 1310 nanometers that the 4th fiber unit obtains after being decomposed by beam splitter 400 is converted to GOOSE message.
Beam splitter 400 is combined after optical signal decomposes, optic module is utilized to obtain SV message and Goose message after the optical signal that wavelength is 1550 nanometers that obtains after decomposing and optical signal that wavelength is 1310 nanometers are changed respectively, it is achieved the reception of the message that the electrical equipment of transmitting terminal is sent.
After optical signal is decomposed and changes by beam splitter 400, obtain SV message and Goose message, different signals can be distinguished thereby through after decomposing, namely SV message and Goose message are physically distinguished, it is not necessary to carried out the message forwarding acquisition to want as traditional transmission method by switch, do not reduce the reliability of point-to-point connection, do not increase message transmissions time delay, ensure that whole group of movement time does not increase accordingly, be transmitted without by multifiber, reduce number of fibers.
Each technical characteristic of above example can combine arbitrarily, for making description succinct, all possible combination of each technical characteristic in above-described embodiment is not all described, but, as long as the combination of these technical characteristics is absent from contradiction, all it is considered to be the scope that this specification is recorded.
Above example only have expressed the several embodiments of the present invention, and it describes comparatively concrete and detailed, but can not therefore be construed as limiting the scope of the patent. It should be pointed out that, for the person of ordinary skill of the art, without departing from the inventive concept of the premise, it is also possible to making some deformation and improvement, these broadly fall into protection scope of the present invention. Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. a substation data transmission method, it is characterised in that comprise the following steps:
Obtain Substation Electric Equipment message to be sent, identify the type of message of described message to be sent;
According to described type of message, described message to be sent is respectively converted into the optical signal of different wave length;
The optical signal of described different wave length is merged, it is thus achieved that combined light signal;
Described combined light signal is transmitted.
2. substation data transmission method according to claim 1, it is characterised in that described message to be sent includes SV message and GOOSE message;
Described according to described type of message, the step of the optical signal that described message to be sent is respectively converted into different wave length includes:
Described SV message is converted to the optical signal that wavelength is 1550 nanometers;
Described GOOSE message is converted to the optical signal that wavelength is 1310 nanometers.
3. substation data transmission method according to claim 1, it is characterised in that also include after the described step that described combined light signal is transmitted:
Receive described combined light signal, and described combined light signal is decomposed, it is thus achieved that the optical signal after the decomposition of different wave length;
Wavelength according to optical signal, is respectively converted into different types of message by the optical signal after described decomposition.
4. substation data transmission method according to claim 3, it is characterised in that described message to be sent includes SV message and GOOSE message, the optical signal of described different wave length includes the optical signal that wavelength is 1550 nanometers and the optical signal that wavelength is 1310 nanometers;
The described combined light signal of described reception, and described combined light signal is decomposed, it is thus achieved that the step of the optical signal after the decomposition of different wave length particularly as follows:
Receive described combined light signal, and described combined light signal is decomposed, it is thus achieved that described wavelength is the optical signal of 1550 nanometers and optical signal that described wavelength is 1310 nanometers.
5. substation data transmission method according to claim 4, it is characterised in that the described wavelength according to optical signal, includes the step that the optical signal after described decomposition is converted to different types of message:
The optical signal that described wavelength is 1550 nanometers is converted to described SV message;
The optical signal that described wavelength is 1310 nanometers is converted to described GOOSE message.
6. a substation data transmitting device, it is characterised in that including the first optic module and splicer, described first optic module is connected with described splicer, and described first optic module is also connected with the processor of Substation Electric Equipment;
Described processor obtains Substation Electric Equipment message to be sent, identify the type of message of described message to be sent, and described message to be sent is transmitted separately to the first optic module, different types of described message to be sent is respectively converted into the optical signal of different wave length by described first optic module, and by the optical signal transmission of described different wave length to described splicer, the optical signal of described different wave length is merged by described splicer, obtain combined light signal, and described combined light signal is transmitted.
7. substation data transmitting device according to claim 6, it is characterized in that, described message to be sent includes SV message and GOOSE message, described first optic module includes the first fiber unit and the second fiber unit, described first fiber unit is connected with described processor and described splicer respectively, described second fiber unit is connected with described processor and described splicer respectively, described processor is by described SV message transmissions to described first fiber unit, by described GOOSE message transmission to described second fiber unit, described SV message is converted to the optical signal that wavelength is 1550 nanometers by described first fiber unit, and by optical signal transmission that described wavelength is 1550 nanometers to described splicer, described GOOSE message is converted to the optical signal that wavelength is 1310 nanometers by described second fiber unit, and by optical signal transmission that described wavelength is 1310 nanometers to described splicer.
8. substation data transmitting device according to claim 6, it is characterised in that also include beam splitter and the second optic module, described beam splitter is connected with described splicer and described second optic module respectively;
Described beam splitter receives the described combined light signal of described splicer transmission, and described combined light signal is decomposed, obtain the optical signal after the decomposition of different wave length, and by the optical signal transmission after described decomposition to described second optic module, described second optic module wavelength according to optical signal, is converted to different types of message by the optical signal after described decomposition.
9. substation data transmitting device according to claim 8, it is characterized in that, described message to be sent includes SV message and GOOSE message, described first optic module includes the first fiber unit and the second fiber unit, described first fiber unit is connected with described processor and described splicer respectively, described second fiber unit is connected with described processor and described splicer respectively, described processor is by described SV message transmissions to described first fiber unit, by described GOOSE message transmission to described second fiber unit, described SV message is converted to the optical signal that wavelength is 1550 nanometers by described first fiber unit, and by optical signal transmission that described wavelength is 1550 nanometers to described splicer, described GOOSE message is converted to the optical signal that wavelength is 1310 nanometers by described second fiber unit, and by optical signal transmission that described wavelength is 1310 nanometers to described splicer, described beam splitter receives described combined light signal, and described combined light signal is decomposed, obtain the optical signal that described wavelength is 1550 nanometers and the optical signal that described wavelength is 1310 nanometers.
10. substation data transmitting device according to claim 9, it is characterized in that, described second optic module includes the 3rd fiber unit and the 4th fiber unit, described 3rd fiber unit and described 4th fiber unit are connected with described beam splitter respectively, the optical signal that described wavelength is 1550 nanometers that described 3rd fiber unit obtains after being decomposed by described beam splitter is converted to described SV message, and the optical signal that described wavelength is 1310 nanometers that described 4th fiber unit obtains after being decomposed by described beam splitter is converted to described GOOSE message.
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Effective date of registration: 20210810 Address after: 510663 3 building, 3, 4, 5 and J1 building, 11 building, No. 11, Ke Xiang Road, Luogang District Science City, Guangzhou, Guangdong. Patentee after: China Southern Power Grid Research Institute Co.,Ltd. Patentee after: Beijing Sifang Automation Co.,Ltd. Patentee after: FOSHAN POWER SUPPLY BUREAU, GUANGDONG POWER GRID Corp. Patentee after: ELECTRIC POWER RESEARCH INSTITUTE, GUIZHOU POWER GRID Co.,Ltd. Patentee after: ELECTRIC POWER RESEARCH INSTITUTE, GUANGXI POWER GRID Co.,Ltd. Address before: 13-21 / F, West Tower, Yuedian building, No.6 and 8 shuijungang, Dongfeng East Road, Yuexiu District, Guangzhou, Guangdong 510000 Patentee before: CSG POWER GRID TECHNOLOGY RESEARCH CENTER Patentee before: China Southern Power Grid Research Institute Co.,Ltd. Patentee before: Beijing Sifang Automation Co.,Ltd. Patentee before: FOSHAN POWER SUPPLY BUREAU, GUANGDONG POWER GRID Corp. Patentee before: ELECTRIC POWER RESEARCH INSTITUTE, GUIZHOU POWER GRID Co.,Ltd. Patentee before: ELECTRIC POWER RESEARCH INSTITUTE, GUANGXI POWER GRID Co.,Ltd. |