KR101272843B1 - Simultaneous Data and Electrical Power Transmission Method and System in Wavelength Division Multiplexed-Passive Optical Network without Exclusive Electrical Power Supply of Optical Network Unit - Google Patents

Simultaneous Data and Electrical Power Transmission Method and System in Wavelength Division Multiplexed-Passive Optical Network without Exclusive Electrical Power Supply of Optical Network Unit Download PDF

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KR101272843B1
KR101272843B1 KR20110092984A KR20110092984A KR101272843B1 KR 101272843 B1 KR101272843 B1 KR 101272843B1 KR 20110092984 A KR20110092984 A KR 20110092984A KR 20110092984 A KR20110092984 A KR 20110092984A KR 101272843 B1 KR101272843 B1 KR 101272843B1
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optical signal
power
data
module
header
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KR20110092984A
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KR20130029613A (en
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원용욱
한상국
채찬병
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연세대학교 산학협력단
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy

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  • Engineering & Computer Science (AREA)
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Abstract

An optical signal transmission terminal, a transmission system, and a method thereof are provided. The optical signal receiving terminal is an optical signal receiving terminal for receiving an optical signal packet including a header and data, the switch module for converting the received optical signal packet into power and supplying the converted power to the active module; And an active module which is driven by the supplied power and which is switched on in a state where at least the reception of the data among the optical signal packets is started.

Description

Simultaneous Data and Electrical Power Transmission Method and System in Wavelength Division Multiplexed-Passive Optical Network without Exclusive Electrical Power Supply of Optical Network Unit

The present invention relates to a system and method for simultaneously transmitting power and data in a passive optical subscriber network without subscriber-only external power supply.

Due to global warming, interest in green IT and green network technologies is increasing. Gartner and related technology trends analysts also report that in the IT sector, network power consumption will grow exponentially over the next decade. In view of this trend, the existing network system will be replaced by green network equipment at home and abroad, and the low power network equipment and parts market is expected to increase rapidly due to piggybacking on the green IT market.

In the optical communication field, a photovoltaic technology, which converts an optical signal transmitted through an optical cable into electric power, enables the optical signal receiving terminal to produce and supply its own power without a separate external power supply. Technology is being researched.

However, the light or data transmitted through the optical cable alone has a problem because it is somewhat insufficient to supply its own power for the normal operation of the receiving terminal. Therefore, in order to solve this problem, there is a need for an optical signal receiving apparatus and an optical signal packet structure therefor, which can efficiently use light energy supplied through an optical cable at a receiving side.

The present invention relates to an optical signal transmitting and receiving system and an optical signal transmitting and receiving system including the same, in which the receiving terminal efficiently converts and receives the received optical signal into electric power without separately receiving power from the outside. to be.

SUMMARY OF THE INVENTION An object of the present invention is to provide an optical signal receiving terminal apparatus which efficiently converts and receives a received optical signal into electric power without receiving power from the outside separately.

Another problem to be solved by the present invention is an optical signal packet structure that allows the receiving terminal device to operate only when the received data is its own, so that an optical signal can be efficiently converted and used, and an optical signal transmitting such an optical signal packet. It is to provide a signal transmission terminal device.

Another object of the present invention is to provide an optical signal receiving method that enables a receiving terminal to efficiently convert and use a received optical signal into electric power without separately receiving power from the outside.

The problems to be solved by the present invention are not limited to the above-mentioned problems, and other matters not mentioned can be clearly understood by those skilled in the art from the following description.

One aspect of an optical signal receiving terminal of the present invention for solving the above problems is an optical signal receiving terminal for receiving an optical signal packet including a header and data, wherein the received optical signal packet is converted into power and the converted power It may include a switch module for supplying the active module to the active module, and an active module that is driven by the supplied power, the power module is turned on at least when the reception of the data from the optical signal packet starts.

An aspect of an optical signal transmission terminal of the present invention for solving the above problems is an optical signal transmission terminal for transmitting an optical signal packet, wherein the optical signal packet is a first to n-th data unit (where n is 1). And the first through n-th data units each have the same or different wavelengths), wherein each of the data units is branched into units of different optical signal receiving terminals based on the wavelengths, Each of the n th data unit may include a header and general data, and the header may include a power-on command code.

Another aspect of the optical signal transmission terminal of the present invention for solving the above problems is an optical signal transmission terminal for transmitting an optical signal packet, wherein the optical signal packet is a first to n-th data unit having a first wavelength ( However, in the optical signal packet including n is a natural number of 1 or more), the optical signal packet is replicated and branched to a plurality of optical signal receiving terminals by a diverter, respectively, and includes first to nth having the first wavelength. The data unit may each contain a header and general data, and the header may each contain a destination code.

One aspect of the optical signal transmission system of the present invention for solving the above problems comprises a header, and data following the header, respectively, wherein the first to n-th data unit (where n is a natural number of 1 or more, and the first To n-th data units each having an optical signal packet including the same or different wavelengths); A diverter for dividing the data units into units based on a wavelength; And a plurality of optical signal receiving terminals for receiving the branched data unit, wherein at least one of the optical signal receiving terminals is a switch module that is always in operation, and at least when the reception of the data starts. It may include an active module that is switched to.

Another aspect of the optical signal transmission system of the present invention for solving the above problems includes a header, the first to n-th data unit having a first wavelength, respectively, wherein n is 1 An optical signal transmitting terminal for transmitting the optical signal packet including the above natural number; A divider for replicating and branching the optical signal packet; And a plurality of optical signal receiving terminals for receiving the branched optical signal packets, respectively, wherein at least one of the optical signal receiving terminals includes a switch module that is always in operation and a power supply at least when the reception of the data starts. It may include an active module that is turned on.

One aspect of the optical signal receiving method of the present invention for solving the above problems is the step of maintaining the power of the active module in the off state, the switch module receiving the header prior to the data, the switch module of the active module Switching the power to the on state and processing the data by the active module; and when the processing of the data is completed, the switch module may include switching the power of the active module to the off state.

Other specific details of the invention are included in the detailed description and drawings.

According to the optical signal receiving apparatus of the present invention, by reducing the power consumption by the whole of the receiving terminal does not always operate, by operating the receiving terminal only when the received data is its own, even if there is no separate external power supply The optical communication can be efficiently performed with only a small amount of light energy supplied through the signal.

1 is an embodiment of an optical signal receiving terminal of the present invention.
2 is another embodiment of an optical signal receiving terminal of the present invention.
FIG. 3 is an embodiment of an optical signal packet structure received by the optical signal receiving terminal of FIG. 1.
4 is another embodiment of an optical signal packet structure received by the optical signal receiving terminal in FIG.
FIG. 5 is a diagram illustrating a part of the optical signal packet structure of FIG. 4 in detail.
6 is an embodiment of an optical signal transmission system of the present invention.
7 is another embodiment of an optical signal transmission system of the present invention.
8 is a flowchart illustrating an embodiment of an optical signal receiving method of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Is provided to fully convey the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout.

Unless otherwise defined, all terms (including technical and scientific terms) used in the present specification may be used in a sense that can be commonly understood by those skilled in the art. Also, commonly used predefined terms are not ideally or excessively interpreted unless explicitly defined otherwise.

1 is an embodiment of an optical signal receiving terminal 100 of the present invention, Figure 2 is another embodiment of an optical signal receiving terminal 200 of the present invention. 3 is an embodiment of an optical signal packet structure received by the optical signal receiving terminal in FIG. 1, FIG. 4 is another embodiment of an optical signal packet structure received by the optical signal receiving terminal in FIG. 5 is a view showing a portion 450 of the optical signal packet structure of FIG.

The optical signal receiving terminal of the present invention is composed of the switch module (110, 210) and the active module (130, 230).

First, the switch module 110 of FIG. 1 receives power data transmitted through an optical cable and converts the power data into electrical energy, and power-on included in the header of the optical signal packet according to the present invention. And a power-on command code checker 113 to determine whether to supply power to the active module 130 by checking the command code.

The power converter 111 converts the light energy transmitted through the optical cable into electrical energy at all times even when the optical signal data as well as the optical signal data are not transmitted. The converted electrical energy is transferred to the power-on command code checker through the power line 1.

The power-on command code checking unit 113 checks the code included in the header of the optical signal packet received by the optical signal receiving terminal 100. In the exemplary embodiment of FIG. 1, an optical signal is transmitted in a wavelength division multiplexing scheme, divided by wavelengths in a branching unit, and a data unit having a specific wavelength is transmitted to a specific optical signal receiving terminal 100.

3 is a diagram illustrating the structure of an optical signal packet 300 received by the optical signal receiving terminal of FIG. 1. One optical signal packet 300 includes data transmitted to a plurality of optical signal receiving terminals. Thus, the optical signal packet 300 may include a plurality of data units. Each data unit has different wavelengths depending on which optical signal receiving terminal is transmitted. That is, the optical signal packet 300 of FIG. 3 shows an example in which n data units are included. The wavelengths of the n data units will be the same if the receiving terminals are identical, and if the receiving terminals are different, Will be another wavelength. That is, n data units are composed of n wavelengths or less.

Before the optical signal packet 300 of FIG. 3 is transmitted to the optical signal receiving terminal, the optical signal packet 300 is branched by the wavelength at the branching unit and a data unit having a specific wavelength is transmitted to the specific optical signal receiving terminal. The power-on command code confirming unit 113 of FIG. 1 confirms the header 301 of the received data unit. The header 301 includes a power-on command code. In the case of the wavelength division multiplexing method as shown in FIG. 1, a specific wavelength is allocated to each of the optical signal receiving terminals, and data is already branched and transmitted by the wavelength in the branching system. Unit. Accordingly, the header of each data unit in the embodiment of FIGS. 1 and 3 may all include the same power-on command code.

Alternatively, the power-on command codes included in the header of each data unit may be different codes containing information on respective wavelengths allocated to each optical signal receiving terminal. In this case, confirming the code by the power-on command code checker 113 may mean that the data to be received by the power-on command code checker 113 is correctly received.

If the power-on command code check unit 113 confirms that the power-on command code included in the header of the received data unit is the same as a code previously set and stored therein, there is data to be processed in the active module. In this case, therefore, the power-on command code checker 113 activates the power line 2 to transmit electrical energy to the active module 130.

The active module 130 may include photodiodes 131, laser diodes 135, amplifiers 133, and band pass filters 137 as components for processing data. The photodiode 131, the amplifier 133, and the laser diode 135 are supplied with power through the power line 2 to start operation to process general data.

That is, the power converter 111 included in the switch module 110 always operates based on light energy or optical signal data transmitted through the optical cable, and the power converter 111 operates power line 1 which is always activated. The electric power is delivered to the power-on command code check unit 113 through.

However, the active module 130 does not normally transmit power, and then the power line 2 only when it is confirmed that the data to be processed by the power-on command code checker 113 of the switch module 110 is received. Power is supplied to perform data processing. As a result, the light energy transmitted through the optical cable can be efficiently utilized.

On the other hand, the optical signal packet supplies light energy for converting the power of the active module 130 to the on state. However, the supplied light energy may be somewhat insufficient in order to directly convert the power of the active module 130 to the on state. Therefore, while the header of the optical signal packet 300 is received, the energy contained in the header is converted into power, but the energy contained in the header is enough to immediately convert the power of the active module 130 to the on state. In case of insufficient, the data may further include dummy data 302 for additional energy supply. That is, the dummy data 302 is used for the purpose of supplying energy for converting the active module 130 of the optical signal receiving terminal 100 into an on state to operate.

Accordingly, as shown in FIG. 3, the optical signal unit includes a header 301 and data, which may be configured to include dummy data 302 and general data 303. Here, the general data 303 means a portion including the actual data to be processed by the optical signal receiving terminal 100.

In FIG. 3, a separate dummy data 302 is included, but the scope of the present invention is not limited thereto. That is, the embodiment of replacing the role of the dummy data 302 by lengthening the length of the header 301 with the exception of the dummy data 302 should be considered to be included in the scope of the present invention.

When the reception of the data unit, specifically, the general data included in the data unit, is completed, the power-on command code checker 113 cuts off the power supplied to the active module 130, and thus the active module 130 is turned on. The state is turned off from the state.

Next, another embodiment of the optical signal receiving terminal of the present invention will be described with reference to FIGS. 2 and 4.

2 is replaced with the destination code check unit 213 instead of the power-on command code check unit 113 in comparison with the embodiment of FIG. 1, and other components are generally the same. 2 differs from the embodiment of FIG. 1 due to the shape and features of the optical signal packet received by the switch module 210 in FIG. 2.

4 is another embodiment of an optical signal packet received by the optical signal receiving terminal 200 of FIG. 2 and FIG. 5 is a diagram for explaining a portion of FIG. 4 in more detail. The optical signal receiving terminal 200 of FIG. 2 may receive only the portion indicated by 410 in FIG. 4 as an optical signal packet. That is, when s is 1, s is the number of wavelengths accommodated in the packet of FIG.

However, the data packet indicated by 410 may include a plurality of data units 410-1, 410-2,..., 410-n, where the plurality of data units 410-1, 410-2, ..., 410-n) have the same wavelength unlike the embodiment described with reference to FIG. Among these, the configuration of the data unit 1 410-1 having the first wavelength may take the form of 410-1 of FIG. 5.

That is, the header 410-1c, the dummy data 410-1b, and the general data 410-1a may be included. Here, the header 410-1c includes a destination code indicating a destination of the optical signal receiving terminal to which the data unit 410-1 is to be transmitted.

The dummy data 410-1b is used for the purpose of supplying energy for the active module 230 of the optical signal receiving terminal 200 to be turned on to operate. However, although FIG. 5 is configured to include separate dummy data 410-1b, the scope of the present invention is not limited thereto. That is, the embodiment of replacing the role of the dummy data 410-1b by lengthening the length of the header 410-1c without excluding the dummy data 410-1b should be considered to be included in the scope of the present invention.

The general data 410-1a means a portion including actual data to be processed by the optical signal receiving terminal 200.

The switch module 210 in FIG. 2 is always operated as in the case of FIG. 1, and the energy source may be light energy or optical signal data transmitted through an optical cable. The power converter 211 converts light energy into electrical energy and transmits the light energy to the destination code verification unit 213 through the power line 1.

Unlike FIG. 1, the optical signal receiving terminal 200 of FIG. 2 may receive the optical signal packet 410 configured with one frequency (that is, when s is 1). In this case, the branching machine does not branch to each data unit but rather duplicates one optical signal packet 410 by the number of optical signal receiving terminals, and transmits the duplicated optical signal packets to each of the plurality of optical signal receiving terminals. Therefore, at this time, the type of signal that the optical signal receiving terminal 200 receives may be the optical signal packet 410 itself.

The destination code checking unit 213 may include a destination code included in headers of each of the plurality of data units 410-1, 410-2,..., 410-n included in the received optical signal packet 410. Check Through this operation, it is checked whether there is a data unit whose destination is among the plurality of data units 410-1, 410-2, ..., 410-n. If it is confirmed that there is a data unit destined for itself, the destination code confirmation unit activates power line 2 to transfer electrical energy to the active module 230.

The active module 230 may include a photo diode 231, a laser diode 235, an amplifier 233, a band pass filter 237, and the like as components for processing data. The photodiode 231, the amplifier 233, and the laser diode 235 are powered through power line 2 to initiate operation.

That is, the power conversion unit 211 included in the switch module 210 always operates based on light energy or optical signal data transmitted through the optical cable, and the power conversion unit 210 operates power line 1 which is always activated. The electrical energy is transmitted to the destination code confirming unit 213 through.

However, the active module 230 normally transmits power through the power line 2 only when it is confirmed that a data unit to be processed by the destination code confirming unit 213 of the switch module 210 is received. The power is supplied to perform general data processing.

The destination code confirming unit 213 may block the power supplied to the active module 230 when reception of the general data included in one data unit, specifically, the data unit to be processed, is completed.

Alternatively, by checking the destination code of the data unit header input next to the data unit to be processed, if it is confirmed that the data unit is not the data unit whose destination is the destination, the power supplied to the active module 230 can be cut off. Accordingly, the active module 130 is switched from the on state to the off state.

A case where s is 2 or more will be described with reference to FIGS. 4 and 5.

As described above, one optical signal packet may include a plurality of data units. If s is 1, as described above, a plurality of data units 410-1, 410-2,..., 410-n are included in one optical signal packet 410.

In addition to this type, multiple data units can be carried together at different wavelengths in one data unit. For example, as shown in FIG. 4, data units having different wavelengths (second to s wavelengths) may be carried together with data unit 1 410-1 having a first wavelength. In this case, the data unit 1 420-1 having the second wavelength to the data unit 1 430-1 having the s-th wavelength may include only general data. This is because the energy required to turn on the power of the active module 230 of the optical signal receiving terminal 200 to the on state includes the header 410-1c and the dummy data of the data unit 1 410-1 having the first wavelength. This is because the power supply of the active module 230 has already been turned on by being already provided through 410-1b).

Accordingly, as shown in FIG. 5, the data unit 1 420-1 having the second wavelength to the data unit 1 430-1 having the s-th wavelength are the data unit 1 410-1 having the first wavelength. ) May be transmitted in synchronization with the time point at which the general data of) is transmitted.

In addition, as shown in FIG. 4, not only the data unit 1 but also the data unit 2 to the data unit n may have the same configuration as described above.

1 and 2 may refer to software or hardware such as a field-programmable gate array (FPGA) or an application-specific integrated circuit (ASIC). However, the components are not limited to software or hardware, and may be configured to be in an addressable storage medium and configured to execute one or more processors. The functions provided in the components may be implemented by a more detailed component or may be implemented by a single component that performs a specific function by combining a plurality of components.

Figure 6 is an embodiment of the optical signal transmission system of the present invention, Figure 7 is another embodiment of the optical signal transmission system of the present invention.

The embodiment of FIG. 6 is consistent with the embodiment of FIGS. 1 and 3. The optical signal transmitting terminal 500 transmits a plurality of optical signal packets 300-1, 300-2, ..., 300-m, wherein at least one of the optical signal packets is an optical signal described with reference to FIG. It can take the form of a packet. The optical signal packet 1 300-1 may include a plurality of data units, and each of the data units may have a different wavelength depending on a destination of a terminal to be transmitted.

For example, data unit 1 310, data unit 2 320, and data unit n 330 included in one optical signal packet 1 300-1 are different from each other. , Data units 1 310, data units 2 320, and data units n 330 have different wavelengths. In addition, when the data unit 1 310 and the data unit 3 (not shown) are both transmitted to the optical signal receiving terminal 1, the two data units may have the same wavelength.

The data units having these different wavelengths are branched by the branching unit 510 and branched to the optical signal receiving terminals 100-1, 100-2, and 100-n for each data unit. Since the optical signal receiving terminals 100-1, 100-2, and 100-n are the same as the optical signal receiving terminal illustrated in FIG. 1, a description thereof will be omitted.

The embodiment of FIG. 7 is consistent with the embodiment of FIGS. 2, 4 and 5. The optical signal transmitting terminal 600 transmits a plurality of optical signal packets 400-1, 400-2, ..., 400-p, at least one of which is shown in FIGS. It can take the same form as the optical signal packet described. The optical signal packet 1 400-1 may include a plurality of data units, and these data units may be configured with only one wavelength (first wavelength) as shown in 410 of FIG. Data units having an s-th wavelength may be further included. For a detailed description thereof, reference may be made to FIGS. 5 and 6.

These optical signal packets 400-1 to 400-p are duplicated by the number of optical signal receiving terminals by the branching unit 610, and the duplicated optical signal packets are transmitted to each of the plurality of optical signal receiving terminals, one by one. Therefore, as can be seen in Figure 7, each optical signal receiving terminal (200-1, 200-2, ..., 200-n) receives the same optical signal packet.

Each of the optical signal receiving terminals 200-1, 200-2,..., 200-n that has received the optical signal packet has a data unit having its own destination among the data units included in the received optical signal packet. If it is confirmed that there exists a data unit whose destination is the destination, it supplies power to the active modules of the respective optical signal receiving terminals to perform data processing. For a detailed description of the optical signal receiving terminal herein, reference may be made to the description of FIG. 2.

8 is a flowchart illustrating an embodiment of an optical signal receiving method of the present invention. If there is no data reception, the active module of the optical signal receiving terminal maintains the power supply OFF state (S810). That is, the switch module of the optical signal receiving terminal does not supply power to the active module.

Thereafter, the switch module of the optical signal receiving terminal receives and confirms the header of the received data unit to check whether there is data to be processed in the optical signal receiving terminal (S820). If it is determined that there is data to be processed in the optical signal receiving terminal, the switch module supplies power to the active module to turn on the power of the active module (S830).

When the reception and processing of data to be processed in the active module is finished, the switch module boils the power supplied to the active module and turns off the power of the active module (S840).

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, You will understand. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive.

100, 200: optical signal receiving terminal 110, 210: switch module
111, 211: power converter 113: power-on command code confirmation unit
213: destination code check unit 130, 230: active module
300, 400: optical signal packet 500, 600: optical signal transmission terminal
510, 610: turnout

Claims (23)

An optical signal receiving terminal for receiving an optical signal packet including a header and data,
A switch module for converting the received optical signal packet into power and supplying the converted power to an active module; And
And an active module which is driven by the supplied power, and wherein the power is turned on at least when the reception of the data is started among the optical signal packets, and the power is turned off again when the reception of the data is completed. Optical signal receiving terminal. The method of claim 1,
The switch module is an optical signal receiving terminal that is constantly operating by converting the light flowing through the optical cable into power. The method of claim 1,
The active module is an optical signal receiving terminal that is switched to the power-on state when the switch module is supplied with the power to which the received header is converted. The method of claim 1,
The data includes general data and dummy data,
The active module is an optical signal receiving terminal that is switched to the power-on state when the switch module is supplied with the power to which the received dummy data is converted. delete The method of claim 1,
When the switch module receives a header including a power-on command code, the optical signal receiving terminal for switching the power of the active module to the on state at least when the reception of the data starts. The method of claim 1,
And the switch module receives a header including a destination code and compares the destination code with a preset destination code to switch on the power of the active module only when the switch module matches. An optical signal transmitting terminal for transmitting an optical signal packet,
The optical signal packet,
A first to n-th data unit, wherein n is one or more natural numbers, and the first to n-th data units each have the same or different wavelengths,
The data units are branched into units of different optical signal receiving terminals based on the wavelength,
The first to n-th data units each include a header and general data,
The header includes a power-on command code. delete delete delete A header, each of the data following the header, and each of the first to nth data units, wherein n is one or more natural numbers, and the first to nth data units each have the same or different wavelengths. An optical signal transmitting terminal for transmitting an optical signal packet;
A diverter for dividing the data units into units based on a wavelength; And
A plurality of optical signal receiving terminal for receiving the branched data unit,
At least one of the optical signal receiving terminals includes a switch module that is always in operation, and at least at the time when the reception of the data is started, the power is turned on, and the power is turned off again when the reception of the data is completed. Optical signal transmission system comprising a module. The method of claim 12,
The data includes dummy data and general data,
The active module is an optical signal transmission system in which the switch module is switched to the power-on state by receiving the power to which the received dummy data is converted. The method of claim 12,
The header includes a power-on command code, the switch module of the optical signal receiving terminal receiving the power-on command code to switch the power of the active module to the on state. An optical signal transmitting terminal for transmitting an optical signal packet including a header and data following the header, and including first to nth data units having a first wavelength, wherein n is a natural number of one or more;
A divider for replicating and branching the optical signal packet; And
A plurality of optical signal receiving terminal for receiving each of the branched optical signal packet,
At least one of the optical signal receiving terminals includes a switch module that is always in operation, and at least at the time when the reception of the data is started, the power is turned on, and the power is turned off again when the reception of the data is completed. Optical signal transmission system comprising a module. 16. The method of claim 15,
The data includes dummy data and general data,
The active module is an optical signal transmission system in which the switch module is switched to the power-on state by receiving the power to which the received dummy data is converted. 16. The method of claim 15,
And the switch module receives a header including a destination code, and compares the destination code with a preset destination code and turns on the power of the active module if it matches. 17. The method of claim 16,
And the switch module turns off the power supply of the active module when the reception of the general data ends. 16. The method of claim 15,
And the switch module receives a header including a destination code, and compares the destination code with a preset destination code and turns off the power of the active module when it does not match. Maintaining a power off state of the active module;
The switch module receiving a header prior to the data;
The switch module turning on the power of the active module and processing the data by the active module; And
And switching the power of the active module to the off state when the processing of the data is terminated. 21. The method of claim 20,
The header includes a power-on command code, the switch module of the optical signal receiving terminal receiving the power-on command code to switch the power of the active module to the on-state. 21. The method of claim 20,
And the switch module receives a header including a destination code, and compares the destination code with a preset destination code and turns on the power of the active module when it matches. 21. The method of claim 20,
The data includes general data and dummy data,
The active module is an optical signal receiving method in which the switch module is switched to the power-on state by receiving the power to which the received dummy data is converted.
KR20110092984A 2011-09-15 2011-09-15 Simultaneous Data and Electrical Power Transmission Method and System in Wavelength Division Multiplexed-Passive Optical Network without Exclusive Electrical Power Supply of Optical Network Unit KR101272843B1 (en)

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CN103580747A (en) * 2013-11-15 2014-02-12 国网安徽省电力公司池州供电公司 High-speed electronic switch type optical cable protector

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JPH11296780A (en) * 1998-04-10 1999-10-29 Mitsubishi Electric Corp Data collection processing system using optical signal and data collection device used in the system

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JPH10247896A (en) * 1997-03-05 1998-09-14 Fujitsu Ltd Communication network, optical transmitter, optical receiver and communication method
JPH11296780A (en) * 1998-04-10 1999-10-29 Mitsubishi Electric Corp Data collection processing system using optical signal and data collection device used in the system

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103580747A (en) * 2013-11-15 2014-02-12 国网安徽省电力公司池州供电公司 High-speed electronic switch type optical cable protector
CN103580747B (en) * 2013-11-15 2015-12-09 国家电网公司 A kind of high speed electronic switch type cable protection instrument

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