WO2013007017A1 - Unité de dérivation, procédé pour commuter le trajet de l'alimentation électrique et système de transmission optique - Google Patents

Unité de dérivation, procédé pour commuter le trajet de l'alimentation électrique et système de transmission optique Download PDF

Info

Publication number
WO2013007017A1
WO2013007017A1 PCT/CN2011/077064 CN2011077064W WO2013007017A1 WO 2013007017 A1 WO2013007017 A1 WO 2013007017A1 CN 2011077064 W CN2011077064 W CN 2011077064W WO 2013007017 A1 WO2013007017 A1 WO 2013007017A1
Authority
WO
WIPO (PCT)
Prior art keywords
port
power supply
optical
supply path
relay
Prior art date
Application number
PCT/CN2011/077064
Other languages
English (en)
Chinese (zh)
Inventor
赵茂
孙恺
周国耀
Original Assignee
华为海洋网络有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为海洋网络有限公司 filed Critical 华为海洋网络有限公司
Priority to CN201180004695.5A priority Critical patent/CN102714547B/zh
Priority to PCT/CN2011/077064 priority patent/WO2013007017A1/fr
Publication of WO2013007017A1 publication Critical patent/WO2013007017A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/44—Arrangements for feeding power to a repeater along the transmission line

Definitions

  • Shunt unit method for switching power supply path, and optical transmission system
  • the present invention relates to the field of optical communications, and more particularly to a splitting unit in the field of optical communications, a method of switching a power supply path, and an optical transmission system. Background technique
  • an optical signal carrying a service can be allocated to two ports through a branching unit (BU).
  • BUs branching unit
  • PSBU Power Switching Branching Unit
  • the BU with the electric switching function can restore part of the service by switching the power supply path in the BU.
  • the cable side can be grounded to ensure the maintenance personnel. Safety.
  • the power supply path in the BU may be necessary to switch the power supply path in the BU due to a cable breakage failure or a maintenance cable breakage.
  • complicated power-on and power-off configuration is required, that is, the power supply path reconfiguration between multiple ports of the BU is realized by configuring the power-on current magnitude, direction, and sequence of different landing points.
  • the switching state of the relay in the BU is changed by controlling the current between the ports of the BU, thereby realizing the change of the power supply path.
  • the embodiment of the present invention provides a branching unit, a method for switching a power supply path, and an optical transmission system, which can prevent the power supply path in the BU from being disturbed by current fluctuations and cause unnecessary switching, so that the power supply path in the BU can be switched when it is not needed. Stay in the current state to improve the stability of the power supply path.
  • an embodiment of the present invention provides a splitting unit, having a first port, a second port, a third port and an SE port
  • the branching unit includes a power supply module, a control module, and a switching module
  • the power supply module is configured to convert a strong current input to the branching unit into a weak current, and to the The control module outputs the weak current
  • the control module is configured to output an electrical signal to the switching module when the power supply path needs to be configured
  • the switching module includes a plurality of bistable relays, wherein, in the first a power supply path between the port, the second port, and any two of the third ports includes at least two bistable relays, and a power supply path between the first port and the SE port includes at least a bistable relay, the power supply path between the second port and the SE port includes at least two bistable relays, and the power supply path between the third port and the SE port includes at least two a bistable relay, for each bistable relay, when an electrical signal output by the control module flows through the coil
  • an embodiment of the present invention provides a method for switching a power supply path, including: receiving, by one of a first port, a second port, and a third port of a branching unit, a method sent by a remote control device for configuring the a control command of a power supply path in the branching unit, the branching unit further having an SE port; converting the control command into an electrical signal; and inputting the electrical signal to a coil of the bistable relay included in the power supply path Changing the switching state of the bistable relay, wherein the power supply path between any two of the first port, the second port, and the third port includes at least two bistable State relay, the power supply path between the first port and the SE port includes at least one bistable relay, and the power supply path between the second port and the SE port includes at least two bistable states A relay, the power supply path between the third port and the SE port includes at least two bistable relays.
  • an embodiment of the present invention provides an optical transmission system including at least one branching unit.
  • Each of the branching units has a first port, a second port, a third port, and an SE port
  • each of the branching units includes a power supply module, a control module, and a switching module, where: the power supply module is configured to input the points
  • the switching unit includes: a plurality of bistable relays, wherein a power supply path between any two of the first port, the second port, and the third port includes at least two bistable relays, A power supply path between a port and the SE port includes at least one bistable relay, and a power supply path between the second port and the SE port includes at least two bistable relays, in the third
  • the power path between the port and the SE port includes at least two pairs Steady-state relay, for each bistable relay, when the electrical signal output by the control module flows through the coil of the bistable relay, the switching state of the bistable relay changes.
  • the switching of the power supply path is controlled by using the switch of the bistable relay, so that the power supply path in the BU is prevented from being disturbed by the current fluctuation, thereby causing unnecessary switching, so that the power supply path in the BU can be switched when it is not required to be switched. Maintaining the current state improves the stability and reliability of the power supply path.
  • FIG. 1 is a block diagram showing the structure of a branching unit according to an embodiment of the present invention.
  • FIG. 2 is an implementation example of a branching unit according to an embodiment of the present invention.
  • FIG. 3 is a first implementation example of a control module in accordance with an embodiment of the present invention.
  • control module 4 is a second implementation example of a control module in accordance with an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of a power supply path in different states according to an embodiment of the present invention.
  • Figure 6 is a schematic illustration of a relay switch configuration corresponding to a power supply path in accordance with an embodiment of the present invention.
  • FIG. 7 is a flow chart of a method of switching a power supply path in accordance with an embodiment of the present invention.
  • FIG. 8 is a schematic illustration of an optical transmission system in accordance with an embodiment of the present invention. detailed description
  • branching unit 100 according to an embodiment of the present invention will be described with reference to FIG.
  • the branching unit 100 has a first port, a second port, a third port, and a SE (Sea Earth) port.
  • the A port is used to indicate the first port
  • the B port is the second port
  • the C port is the third port.
  • a current path can be formed between the two ports in the A, B, and C ports, and the remaining port is connected to the SE port to form a current path.
  • the branching unit 100 can include a power supply module 110, a control module 120, and a switching module 130.
  • the power supply module 110 can be used to convert the strong current of the input shunt unit 100 into a weak current and output a weak current to the 1 control module 120.
  • Control module 120 can be used to output an electrical signal to switching module 130 when a power supply path needs to be configured.
  • the switching module 130 can include a plurality of bistable relays, wherein a power supply path between any two of the first port, the second port, and the third port includes at least two bistable relays, at the first port and
  • the power path between the SE ports includes at least one bistable relay
  • the power path between the second port and the SE port includes at least two bistable relays
  • the power path between the third port and the SE port includes at least Two bistable relays, for each bistable relay, when the electrical signal output by the control module 120 flows through the coil of the bistable relay, the switching state of the bistable relay changes.
  • the power supply module 110 outputs a weak current to the control module 120 based on the strong current input to the shunt unit 100 to cause the control module 120 to operate.
  • the current is transmitted in the solid line of Fig. 1, and the optical signal is transmitted in the broken line of Fig. 1.
  • the power supply path provided in the switching module 130 is related to the C port, that is, the strong current flowing through the branching unit 100 needs to flow in or out from the C port, and the current flowing through the C port flows into or out of the switching module 130.
  • the power supply module 110 obtains current from the switching module 130 to provide an operating voltage for operation of the control module 120.
  • the power supply module 110 can also provide a protection function to prevent the shunt unit 100 from being subjected to excessive current from the outside, as described in connection with FIG.
  • the control module 120 may output an electrical signal under the trigger of an external control command, or may output an electrical signal by detecting a change in current transmission in the shunt unit 100 by itself. Through the electrical signal, the control module 120 can control the switching of the power supply path in the branching unit 100 to reconfigure the power supply path.
  • control module 120 is operative to receive an optical command transmitted by the remote control device from one of the first port, the second port, and the third port, and convert the optical command into an electrical signal.
  • the remote control device located on the shore may The optical command is transmitted to the branching unit 100 by the optical fiber that has passed through the access splitting unit 100.
  • the remote control device may transmit the optical command carrying the control information to the control module 120 in the branching unit 100 through the optical fiber at a specific wavelength, the specific wavelength being different from the wavelength carrying the service data information, so that the control module 120 Optical commands can be distinguished from optical signals transmitted by optical fibers.
  • the control module 120 Since the control module 120 needs to receive an optical command for configuring the power supply path, the control module 120 includes an optical transmission channel, i.e., an optical fiber, in the shunt unit 100.
  • the control module 120 obtains an optical command from the optical fiber, and performs photoelectric conversion on the optical command to analyze the information of the configured power supply path demodulated from the optical command, thereby obtaining an electrical signal for controlling the switching of the power supply path, and driving the electrical signal to switch.
  • the module 130 includes a coil of a bistable relay to switch the power supply path. The manner of converting the optical command into an electrical signal for switching the power supply path can be implemented as in the prior art, and details are not described herein again.
  • the switching module 130 switches the power supply path only when receiving an electrical signal from the control module 120. At this time, when the switching module 130 receives the electrical signal, the electrical signal flows through the coil of the bistable relay, thereby changing the switching state of the bistable relay, and causing the reconfiguration of the power supply path due to the change of the switching state.
  • a bistable relay is a relay with two steady states. It has two input loops that can cause two steady states when added to the input.
  • the switching state of the bistable relay changes accordingly; when there is no current flow in the coil of the bistable relay
  • the switching state of the bistable relay remains unchanged over time. Therefore, even if the current flowing through the branching unit 100 fluctuates greatly, unnecessary external interference occurs, and as long as the coil of the bistable relay is not driven, the control module 120 does not output an electric signal, and the switching state of the bistable relay It can remain unchanged, so the state of the power path will remain the same, avoiding unnecessary switching.
  • the control module 120 can output an electrical signal when receiving the control command.
  • the bistable relay can be a magnetic hold relay.
  • the normally closed or normally open state of the magnetic holding relay is completely dependent on the action of the permanent magnet, and the switching of the switching state is accomplished by a pulse signal of a certain width.
  • the magnetic hold relay may be a Double Pole Double Throw (DPDT) magnetic hold relay, as described below in connection with the example shown in FIG.
  • DPDT Double Pole Double Throw
  • the branching unit is subjected to bistable by switching the power supply path
  • the switching state of the relay is controlled, and the switching state of the bistable relay is changed only under the control of the electrical signal sent by the control module, so that the power supply path in the BU can be prevented from being disturbed by the current and causing unnecessary switching.
  • the power supply path in the BU can be maintained in the current state when it is not required to be switched, thereby improving the stability and reliability of the power supply path.
  • the power supply path can be kept in the current state when switching is not required, thus avoiding the heat generated by the unexpected power supply path switching, saving the power consumption of the branching unit, and reducing the shunting unit. The probability of a failure.
  • branching unit 200 provided by the embodiment of the present invention will be described in detail in conjunction with a specific example of the branching unit 200 shown in FIG.
  • the branching unit 200 shown in FIG. 2 is a PSBU having four ports A, B, C, and SE, and the following three power supply path states exist: A port-B port, C port-SE port; B port-C Port, A port - SE port; A port - C port, B port - SE port.
  • the switching of these three power path states is accomplished by configuring the bistable relays 11, 12, 13, 14.
  • the switching module 31 of the branching unit 200 includes bistable relays 11, 12, 13, 14.
  • the bistable relays 11, 12, 13, and 14 are DPDT high voltage relays that can be implemented by magnetically holding relays.
  • Each bistable relay includes two switches and coils.
  • the bistable relay 11 includes switches A1 and A2 and a reset line ⁇ RLR A and a set line ⁇ RLS A.
  • the bistable relay 12 includes switches B1 and B2 and a reset. ⁇ RLR B and set line ⁇ RLS B
  • bistable relay 13 includes switches C1 and C2 and reset line ⁇ RLR C and set coil RLS C
  • bistable relay 14 includes switch D1 and reset line ⁇ RLR D and The set line ⁇ RLS D, the other switch of the bistable relay 14 is not used in the example shown in FIG. 2.
  • the bistable relays 11 to 14 can be respectively connected to the power supply path between the four ports in the manner as shown in FIG.
  • the switch C1 of the bistable relay 13 When the switch C1 of the bistable relay 13 is closed and the switch A1 of the bistable relay 11 is closed, the power supply path between the A port and the B port is turned on; when the switch C1 of the bistable relay 13 is closed and the bistable relay When the B1 switch of 12 is closed, the power supply path between the A port and the C port is turned on; when the D1 switch of the bistable relay 14 is closed, the power supply path between the A port and the SE port is turned on; when the bistable relay When the B2 switch of 12 is closed and the A2 switch of the bistable relay 11 is closed, the power supply path between the B port and the C port is turned on; when the B2 switch of the bistable relay 12 is closed and the C2 switch of the bistable relay 13 is closed When the power path between the B port and the SE port is turned on; when the A2 switch of the bistable relay
  • the power path status of the B port-C port and the A port-SE port is reflected as follows: When the B2 switch of the bistable relay 12 is closed and the A2 switch of the bistable relay 11 is closed, between the B port and the C port The power supply path is turned on; when the D1 switch of the bistable relay 14 is closed, the power supply path between the A port and the SE port is turned on.
  • the power path status of the A port-C port, the B port-SE port is reflected in the following cases: When the switch C1 of the bistable relay 13 is closed and the B1 switch of the bistable relay 12 is closed, between the A port and the C port The power supply path is turned on; when the B2 switch of the bistable relay 12 is closed and the C2 switch of the bistable relay 13 is closed, the power supply path between the B port and the SE port is turned on.
  • the electrical signal from the control module 9 flows into the coil of the bistable relay to control the switching state of the bistable relay. Only when the control module 9 receives the control command, the control module 9 outputs an electrical signal to drive the turns of the bistable relays 11 to 14, thereby changing the switching states of the bistable relays 11 to 14, thus, the power supply Switching can be achieved between the three normal working states of the path.
  • the command received by the control module 9 may be from an externally input optical or electrical command, or may be from an internally issued command.
  • the set lines ⁇ RLS A to RLS D of the respective bistable relays are controlled by the first control unit 91 in the control module 9, and the reset lines ⁇ RLR A to RLR D of the respective bistable relays are second by the control module 9.
  • Control unit 92 controls.
  • Both the first control unit 91 and the second control unit 92 can control the switching state of the bistable relay by controlling the current flowing through the respective coils.
  • the first control unit 91 and the second control unit 92 operate only one of them each time the switch state of the bistable relay needs to be configured, such that the first control unit 91 and the second control Units 92 can be backed up to each other to increase the reliability of control module 9.
  • the first control unit 91 is configured to receive an optical command sent by the remote control device from one of the first port, the second port, and the third port; convert the optical command into an electrical signal; and output the electrical signal to the bistable relay In the bit coil.
  • the second control unit 92 can be configured to receive an optical command sent by the remote control device from one of the first port, the second port, and the third port; convert the optical command into an electrical signal; and output the electrical signal to the reset of the bistable relay In the line.
  • first control unit 91 and the second control unit 92 can be referred to the examples shown in Figs. 3 and 4.
  • a first example of a specific implementation when the control module 9 includes the first control unit 91 and the second control unit 92 will first be described with reference to FIG.
  • the first control module 91 can include a photoelectric converter 911 and optical filters 912, 913, 914. Although three optical filters are shown in FIG. 3, the first control module 91 may have only one optical filter, and may have two or more than three optical filters, depending on which The light command is input to the fiber in the root fiber, and the optical filter is installed in the fiber with the optical command input.
  • Each of the optical filters may be a filter including a spectroscopic device, and the light carrying the command information is filtered out through the spectroscopic device.
  • Each optical filter can extract optical commands for configuring the power supply path from the respective fibers, for example, optical commands can be carried in optical signals having specific wavelengths.
  • the optical filter 912 receives optical commands from the optical fiber 1, and the optical filter 913 also receives optical commands from the optical fiber 1, but the optical filter 912 operates in the case where the optical signal is transmitted from left to right, and the optical filter 913 operates in the optical signal. In the case of transmission from right to left, therefore, one of the optical filter 912 and the optical filter 913 performs a filtering operation based on the difference in the optical transmission direction in the optical fiber.
  • Optical filter 914 receives the light command from fiber 3.
  • the optical fiber 1 and the optical fiber 3 may be optical fibers that are connected to the branching unit 200 from a port other than the SE port, or may be optical fibers that are respectively connected to the branching unit 200 from two ports other than the SE port.
  • the optical filter 912, 913 or 914 outputs the extracted light command to the photoelectric converter 911 after extracting the light command from the optical signal transmitted along the optical fiber.
  • the photoelectric converter 911 can photoelectrically convert the optical command, demodulate and analyze the optical command, so that the optical command can be converted into an electrical signal, and the electrical signal is sent into the set line ⁇ of the bistable relay, thereby It is possible to control the switching state of the bistable relay, that is, the closed and open states.
  • the second control module 92 can include a photoelectric converter 921 and optical filters 922, 923, 924. Although three optical filters are shown in FIG. 3, the second control module 92 may have only one optical filter, and may have two or more than three optical filters, depending on which The light command is input to the fiber in the root fiber, and the optical filter is installed in the fiber with the optical command input.
  • Each of the optical filters may be a filter including a beam splitting device that filters the light carrying the command information through the beam splitting device.
  • Each optical filter can extract optical commands for configuring the power supply path from the respective fibers, for example, optical commands can be carried in an optical signal having a particular wavelength.
  • the optical filter 922 receives optical commands from the optical fiber 2, and the optical filter 923 also receives optical commands from the optical fiber 2, but the optical filter 922 operates in the case where the optical signal is transmitted from left to right, and the optical filter 923 operates in the optical signal. In the case of transmission from right to left, therefore, one of the optical filter 922 and the optical filter 923 performs a filtering operation based on the direction of light transmission in the optical fiber.
  • Optical filter 924 receives light commands from fiber 4.
  • the optical fiber 2 and the optical fiber 4 may be optical fibers that are connected to the branching unit 200 from one port other than the SE port, or may be optical fibers that are respectively connected to the branching unit 200 from two ports other than the SE port.
  • the optical filter 922, 923 or 924 outputs the extracted light command to the photoelectric converter 921 after extracting the light command from the optical signal transmitted along the optical fiber.
  • the photoelectric converter 921 can photoelectrically convert the optical command, demodulate and analyze the optical command, so that the optical command can be converted into an electrical signal, and the electrical signal is sent to the reset line of the bistable relay, thereby The switching states of the control bistable relay are closed and open.
  • the paths in which the first control unit 91 and the second control unit 92 receive the optical command are completely separated, so that the first control unit 91 and the second control unit 92 do not simultaneously receive the optical command, and the line is set. There is no current flowing through the reset line ,, and the backup of the control function in the control module 9 is realized.
  • the second example differs from the first example in that the first control unit 91 and the second control unit 92 receive the path coincidence of the optical command, and need to carry the identifier of the first control unit 91 or the second control unit 92 in the optical command. Distinguish who operates.
  • the first control unit 91 includes optical filters 931, 932, 933 and optical couplers 934, 935, 936 and a photoelectric converter 918.
  • the second control unit 92 includes optical filters 931, 932, 933 and optical couplers 934, 935, 936 and a photoelectric converter 928, wherein the optical filter and the optical coupler are in one-to-one correspondence.
  • the first control unit 91 and the second control unit 92 share the same optical filter and optical coupler, but use different photoelectric converters. Although three pairs of optical filters and optical couplers are shown in FIG.
  • the control module 9 may have only a pair of optical filters and optical couplers, and may have multiple pairs of optical filters and optical couplers, which may depend on Which optical fiber inputs the optical command, and the optical filter and the corresponding optical coupler are installed in the optical fiber with the optical command input.
  • Each of the optical filters may be a filter including a spectroscopic device, and the light carrying the command information is filtered out through the spectroscopic device.
  • Each of the optical couplers 934, 935, and 936 can be a 3 dB coupler that will have a corresponding light
  • the light containing the light command filtered by the filter and the filter is divided into two parts of the equal optical power, and output to the photoelectric converters 918 and 928, respectively.
  • Whether the operation is performed by the photoelectric converter 918 or the photoelectric converter 928 can be specified by setting an identification in the optical command.
  • the identifier set in the optical command may be the identifier of the first control unit 91 or the second control unit 92, or may be the identifier of the photoelectric converter 918 or the photoelectric converter 928.
  • the photoelectric converter 918 and the photoelectric converter 928 can determine whether or not they operate according to the identification by analyzing the light command.
  • the optoelectronic converter 918 of the first control unit 91 can be used to convert the optical command into an electrical signal that is output to the set line of the bistable relay.
  • the photoelectric converter 928 of the second control unit 92 can be used to convert the light command into an electrical signal and output the electrical signal to the reset line ⁇ of the bistable relay.
  • the optical command received by the above-described photoelectric converter 911, 912, 918 or 928 contains the action information and sequence of the bistable relay, as is the operation required to switch the power supply path described below in connection with Fig. 6.
  • the photoelectric converter can demodulate the optical command, and the demodulated information is sent to the parser included in the photoelectric converter for analysis, thereby analyzing the action information of the bistable relay, and inputting the electric signal corresponding to the action into the bistable In the coil of the state relay, the bistable relay is driven to complete the predetermined action.
  • control module 9 Two specific examples of the control module 9 are described above, and the other components of the branching unit 200 will be described below with reference to FIG.
  • the power supply module 32 of the branching unit 200 includes a transient suppression component 1, a resistor 2, a rectifier circuit 3, diodes 4, 5, 6, and a line ⁇ 7 and a switch 8 forming a monostable relay of the DPDT.
  • the power supply of the shunt unit usually operates in a constant current line. Since the system power distribution is usually as high as several thousand to tens of thousands of volts, a sudden short circuit near the shunt unit 200 may cause a large surge current to be generated, which may have a large influence on the normal operation of the shunt unit 200. To this end, as shown in Fig. 2, the transient suppression component 1 and the resistor 2 are provided as guard circuits.
  • the transient suppression component 1 can be an air discharge tube or a transient voltage suppressor (Transient Voltage)
  • the resistor 2 can also be an inductor line ⁇ which increases the transient impedance of the portion in parallel with the transient suppression component 1 so that the protection circuit absorbs the surge.
  • the rectifier circuit 3 can be constituted by a diode, and the presence of the rectifier circuit 3 allows the branching unit 200 to support power supply in both forward and negative directions.
  • Diodes 4, 5, and 6 are Zener diodes, which can be control module 9, set line ⁇ , reset line ⁇ Provides a stable voltage.
  • the Zener diode 4 provides a power supply input from the B port
  • the Zener diode 5 provides a power supply input from the C port
  • the Zener diode 6 is connected in parallel with the control module 9, and the control module 9 includes a first control unit 91 and a second control unit 92.
  • the set line ⁇ and the reset line ⁇ of the bistable relay are respectively driven.
  • Line ⁇ 7 and switch 8 form the monostable relay of the DPDT, which is a high voltage relay whose control line ⁇ 7 is connected in parallel with the Zener diode 4.
  • the line ⁇ 7 is energized, and the switch 8 operates in a closed state, that is, the COM end of the relay is connected to the NO terminal, the Zener diode 6 is connected in parallel with the control module 9, and the B port supplies power to the control module 9.
  • the control module 9 drives the set line ⁇ or reset line ⁇ of the bistable relay.
  • the coil ⁇ 7 of the monostable relay When there is no current flowing through the B port, the coil ⁇ 7 of the monostable relay is de-energized, and the switch 8 is operated in the off state, that is, the COM end of the relay is connected to the NC terminal, and the Zener diode 6 and the control module 9 are stabilized.
  • the voltage diodes 5 are connected in parallel, and the control module 9 is powered by the A port, and the power supply module 9 drives the set line ⁇ or reset line ⁇ of the bistable relay.
  • the power supply path status in (a) is the A port-B port, the C port-SE port; the power supply path status in (b) is A. Port-SE port, B port-C port; The power path status in (c) is A port-C port, B port-SE port.
  • the relay switch configurations for the three power path states are shown in (a), (b), and (c), respectively.
  • the corresponding power supply path is the A port-B port and the C port-SE port;
  • the corresponding power supply path is the A port-SE port and the B port-C port;
  • the corresponding power supply path is A port - C port and B port - SE port.
  • the B1 switch and the B2 switch of the bistable relay 12 are first closed, and the state of the three-terminal grounding is entered, that is, the state in (d) of Fig. 5. Then turn off the A1 switch and A2 switch of the bistable relay 11, that is, enter the state in (c).
  • the switching state of the power supply path is controlled by the switching state of the bistable relay, and the switching state of the bistable relay occurs only under the control of the electrical signal sent by the control module.
  • the change makes it possible to prevent the power supply path in the BU from being disturbed by the current and causing unnecessary switching, so that the power supply path in the BU can be maintained in the current state when the switching is not required, and the stability and reliability of the power supply path can be improved.
  • the method 700 includes: receiving, in S710, one of a first port, a second port, and a third port of the branching unit, configured by the remote control device, configured to configure a power supply path in the branching unit.
  • the control command, the branching unit also has an SE port; in S720, the control command is converted into an electrical signal; in S730, an electrical signal is input into the coil of the bistable relay included in the power supply path, thereby changing the silent relay a switching state, wherein a power supply path between any two of the first port, the second port, and the third port includes at least two bistable relays, and a power supply path between the first port and the SE port includes At least one bistable relay, the power path between the second port and the SE port includes at least two bistable relays, at the third port and the SE port The power path between the two contains at least two bistable relays.
  • method 700 can be performed by control module 120 in shunt unit 100.
  • the control module 120 can receive a control command sent by the remote control device on the shore from the optical fiber or cable, and include the action information and sequence of the bistable relay in the control command, and can convert the control command into an electrical signal to make the bistable relay
  • the switch state performs a corresponding action to achieve switching of the power supply path.
  • control command may be an optical command.
  • control module 120 For specific operations of the control module 120, reference may be made to the above detailed description. To avoid repetition, details are not described herein.
  • the switching state of the bistable relay is controlled by sending a control command to the branching unit, and the switching state of the bistable relay is only under the control of the electrical signal based on the control command. A change occurs, so that the power supply path in the BU is prevented from being disturbed by the current and unnecessary switching occurs.
  • the power supply path in the BU can be maintained in the current state when the switching is not required, thereby improving the stability and reliability of the power supply path.
  • Optical transmission system 800 is used to deliver optical signals. At least one branching unit is included in the optical transmission system 800. Three shunting units are shown in Fig. 8, but this is merely illustrative and does not limit the specific number of shunting units included in optical transmission system 800.
  • the branching unit included in the optical transmission system 800 may be the branching unit 100 shown in FIG.
  • the specific implementation of the splitting unit 100 can be as shown in FIG. 2, and the specific implementation of the control module in the splitting unit can be as shown in FIG. 3 or FIG. 4.
  • the switching of the power supply path is controlled by using the switch of the bistable relay, so that the power supply path in the BU is prevented from being disturbed by the current fluctuation, thereby causing unnecessary switching, so that the power supply path in the BU is It can be kept in the current state without switching, which improves the stability and reliability of the power supply path.
  • RAM random access memory
  • ROM read only memory
  • electrically programmable ROM electrically erasable programmable ROM
  • registers hard disk, removable disk, CD-ROM, or any other form of storage medium known in the art. in.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)

Abstract

L'invention concerne une unité de dérivation, un procédé pour commuter le trajet de l'alimentation électrique et un système de transmission optique. L'unité de branchement comprend un premier port, un deuxième port, un troisième port et un port SE. L'unité de dérivation comprend un module d'alimentation électrique, un module de commande et un module de commutation. La présente invention utilise des relais et commutateurs bistables pour commander la commutation de trajet d'alimentation, de façon que le trajet d'alimentation dans l'unité de dérivation ne subisse aucune commutation superflue due aux interférences sous l'effet des fluctuations de courant, ce qui permet au trajet d'alimentation dans l'unité de dérivation de maintenir un état de courant sans aucun besoin de commutation, et d'améliorer la stabilité et la fiabilité du trajet d'alimentation.
PCT/CN2011/077064 2011-07-12 2011-07-12 Unité de dérivation, procédé pour commuter le trajet de l'alimentation électrique et système de transmission optique WO2013007017A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201180004695.5A CN102714547B (zh) 2011-07-12 2011-07-12 分路单元、切换供电路径的方法和光传输系统
PCT/CN2011/077064 WO2013007017A1 (fr) 2011-07-12 2011-07-12 Unité de dérivation, procédé pour commuter le trajet de l'alimentation électrique et système de transmission optique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2011/077064 WO2013007017A1 (fr) 2011-07-12 2011-07-12 Unité de dérivation, procédé pour commuter le trajet de l'alimentation électrique et système de transmission optique

Publications (1)

Publication Number Publication Date
WO2013007017A1 true WO2013007017A1 (fr) 2013-01-17

Family

ID=46903945

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2011/077064 WO2013007017A1 (fr) 2011-07-12 2011-07-12 Unité de dérivation, procédé pour commuter le trajet de l'alimentation électrique et système de transmission optique

Country Status (2)

Country Link
CN (1) CN102714547B (fr)
WO (1) WO2013007017A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019065385A1 (fr) * 2017-09-29 2019-04-04 日本電気株式会社 Unité de branchement sous-marin et procédé de branchement sous-marin

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9755734B1 (en) * 2016-06-09 2017-09-05 Google Inc. Subsea optical communication network
CN115296727A (zh) * 2022-07-06 2022-11-04 中航宝胜海洋工程电缆有限公司 一种可靠远程控制的分支单元

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2287625A (en) * 1994-03-05 1995-09-20 Stc Submarine Systems Ltd Branching unit for underwater telecommunications systems
CN1170143A (zh) * 1996-07-09 1998-01-14 富士通株式会社 光学分路与插入装置及光学传输系统
EP0917300A2 (fr) * 1997-10-24 1999-05-19 Alcatel Unité de bifurcation d'un système de communication sous-marin
CN1882862A (zh) * 2003-10-16 2006-12-20 雷德斯凯萨布斯有限公司 用于海底光传输系统的海底分路单元
CN101957476A (zh) * 2009-07-21 2011-01-26 华为海洋网络有限公司 光分插复用器水下光分路器及其对应的光传输方法和系统

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2287625A (en) * 1994-03-05 1995-09-20 Stc Submarine Systems Ltd Branching unit for underwater telecommunications systems
CN1170143A (zh) * 1996-07-09 1998-01-14 富士通株式会社 光学分路与插入装置及光学传输系统
EP0917300A2 (fr) * 1997-10-24 1999-05-19 Alcatel Unité de bifurcation d'un système de communication sous-marin
CN1882862A (zh) * 2003-10-16 2006-12-20 雷德斯凯萨布斯有限公司 用于海底光传输系统的海底分路单元
CN101957476A (zh) * 2009-07-21 2011-01-26 华为海洋网络有限公司 光分插复用器水下光分路器及其对应的光传输方法和系统

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019065385A1 (fr) * 2017-09-29 2019-04-04 日本電気株式会社 Unité de branchement sous-marin et procédé de branchement sous-marin
JPWO2019065385A1 (ja) * 2017-09-29 2020-07-02 日本電気株式会社 海底分岐装置及び海底分岐方法
US20200257251A1 (en) * 2017-09-29 2020-08-13 Nec Corporation Submarine branching unit and submarine branching method
US11556096B2 (en) 2017-09-29 2023-01-17 Nec Corporation Submarine branching unit and submarine branching method

Also Published As

Publication number Publication date
CN102714547B (zh) 2015-04-08
CN102714547A (zh) 2012-10-03

Similar Documents

Publication Publication Date Title
JP7134992B2 (ja) 給電分岐ユニット（ｐｆｂｕ）の多ノード・ネットワークを使用して適応型電力分配を提供するための技法、およびそれを使用する海底光通信システム
US7936685B2 (en) Intelligent fast switch-over network tap system and methods
US10620678B2 (en) System for transmitting power to a remote PoE subsystem by forwarding PD input voltage
EP2805214B1 (fr) Dispositif et procédé d'alimentation de dispositif de mi-portée ethernet et de dispositif d'extrémité
EP3054623B1 (fr) Procédé et appareil d'initialisation de dispositif d'accès hybride opto-électrique
CN103166313A (zh) 一种直流固态功率控制器
WO2013007017A1 (fr) Unité de dérivation, procédé pour commuter le trajet de l'alimentation électrique et système de transmission optique
CN111919402A (zh) 一种光通信装置、光线路终端和光通信的处理方法
CN104993863A (zh) 网络通讯设备测试用的光模块
US9998213B2 (en) Network tap with battery-assisted and programmable failover
CN106341180A (zh) 一种光模块及光模块控制方法、装置
RU2536370C2 (ru) Сеть и блок расширения, а также способ функционирования сети
CN202978399U (zh) 一种分支单元
EP2811606B1 (fr) Système de contrôle de disjoncteur
CN104158670A (zh) 千兆以太网旁路器
CN207869116U (zh) 一种主备设备的切换控制系统
CN102265640B (zh) 光线路传输保护系统和方法
CN207995092U (zh) 实现光口冗余链路保护功能的光通信设备
CN104617654B (zh) 一种网络旁路装置及其状态设置方法
CN104135448A (zh) 包含多类型以太网传输接口的交换机
EP2929676B1 (fr) Rail de montage de dispositif de réseau pour connecter des modules amovibles
CN105282054A (zh) 一种抗干扰加固型以太网交换机
CN105356934B (zh) 一种高速电子开关型光缆保护仪的信号选择方式
EP2990893B1 (fr) Appareil de retour d'alimentation électrique
CN107959531B (zh) 一种光发射装置

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 201180004695.5

Country of ref document: CN

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 11869251

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 11869251

Country of ref document: EP

Kind code of ref document: A1