CN107707307A - A kind of GEPON optical repeaters for intelligent grid - Google Patents

A kind of GEPON optical repeaters for intelligent grid Download PDF

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Publication number
CN107707307A
CN107707307A CN201710572170.0A CN201710572170A CN107707307A CN 107707307 A CN107707307 A CN 107707307A CN 201710572170 A CN201710572170 A CN 201710572170A CN 107707307 A CN107707307 A CN 107707307A
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optical
optical splitter
change over
gepon
onu
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CN201710572170.0A
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CN107707307B (en
Inventor
冯朝力
肖艳炜
赵玉成
储建新
雷虹云
陆建琴
陆萍
胡景博
吴桂萍
曹志勇
施敏达
潘炫霖
刘海林
张依辰
李豹
雷建新
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Haiyan Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
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Haiyan Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
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Priority to CN201710572170.0A priority Critical patent/CN107707307B/en
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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
    • H04B10/29—Repeaters
    • 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
    • H04B10/29—Repeaters
    • H04B10/291—Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form
    • H04B10/293—Signal power control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • H04Q11/0067—Provisions for optical access or distribution networks, e.g. Gigabit Ethernet Passive Optical Network (GE-PON), ATM-based Passive Optical Network (A-PON), PON-Ring
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13191—Repeater

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

Abstract

The present invention relates to a kind of light relay equipment for luminous power enhancing in GEPON technical fields, a kind of GEPON optical repeaters for intelligent grid include mechanical switch unit, WDM units, circuit module, microprocessor module and power subsystem, mechanical switch unit includes several one-to-two optical splitters, optical splitter change over adapter and optical splitter switch motor, mechanical switch unit is between WDM units and ONU, the fixed optical splitter change over adapter of rotor of optical splitter switch motor, optical splitter switch motor is controlled by microprocessor module, optical splitter change over adapter and one-to-two optical splitter clamping, two branch optical fibers of one-to-two optical splitter are connected with ONU.The beneficial effects of the invention are as follows：A kind of mechanical switch unit is added in traditional optical repeater, solves the problems, such as the demand assignment luminous power according to ONU.

Description

A kind of GEPON optical repeaters for intelligent grid
Technical field
The present invention relates to gigabit ethernet passive optical network (GEPON) technical field, more particularly to a kind of luminous power that is used for increase Strong light relay equipment.
Background technology
With the EPON based on gigabit Ethernet（Hereinafter referred to as GEPON, or gigabit ethernet passive optical network） During building intelligent grid, the cost for controlling communication system is to obtain the key point of economic benefit.Power grid application There is obvious difference in environment, telecommunications network GEPON is the technology for accessing and researching and developing for home broadband, telecommunications network with telecommunications network Optical network unit（Hereinafter referred to as ONU）Distribution is than comparatively dense, the general optical splitter for using multiport number, with one point 16, one point 32 optical splitter dosages are most, so the series of optical splitter is less, typically within two-stage, and intelligent grid GEPON ONU Distribution is distant between ONU then than sparse, mainly uses one-to-two optical splitter, especially should in chain and hand in hand networking Even more so in, this network structure optical power fluctuation is unreasonable, so optical splitter series is more, the light work(of prime ONU distribution Rate is relatively more, and waste is larger, and the luminous power of rear class ONU distribution is reduced step by step, then insufficient to end ONU power, limits access Intelligent grid GEPON ONU quantity, while standby optical loop also needs to optical line terminal（Hereinafter referred to as OLT）PON mouths are provided to connect Connect, now OLT can also occupy ONU interface resources, so as to limit ONU quantity.So needs develop one kind and are used for intelligent grid GEPON optical repeaters, for meeting ONU light power requirements.
The A of Chinese patent notification number CN 104954073, publication date September in 2015 30 days are a kind of general intelligent GEPON luminous powers strengthen equipment, built-in double optical port self-healed protection function GEPON ONU, can remote network management, extend GEPON's Transmission range, and optical branch number can be increased；Industrial environment requirement is suitable for, there is the characteristics of miniaturization, clamping-rail installation.Including GEPON ONU, downstream signal regenerative circuit, upward signal regenerative circuit, multiple task operating system, equipment webmaster software module, The functional modules such as man machine interface software module, power protecting circuit.But the intelligent GEPON luminous powers enhancing equipment is not Can solve the irrational problem of optical power fluctuation, the present invention adds a kind of mechanical switch unit in traditional optical repeater, solves The problem of demand assignment luminous power according to ONU of having determined.
The content of the invention
The technical problem to be solved in the present invention is the irrational problem of ONU optical power fluctuations for solving intelligent grid GEPON.
The present invention is that technical scheme is used by solving the above problems：A kind of GEPON light for intelligent grid relays Device, including mechanical switch unit, WDM units, circuit module, microprocessor module and power subsystem, it is characterised in that the machine Tool switch unit includes several one-to-two optical splitters, optical splitter change over adapter and optical splitter switch motor, the mechanical switch Unit is between WDM units and ONU, the fixed optical splitter change over adapter of rotor of the optical splitter switch motor, optical splitter Switch motor is controlled by microprocessor module, the optical splitter change over adapter and one-to-two optical splitter clamping, the one-to-two point Two branch optical fibers of light device are connected with ONU；The WDM units include wavelength division multiplexer A and wavelength division multiplexer B, wavelength-division multiplex Device A is connected between OLT and circuit module by optical fiber, and wavelength division multiplexer B is connected to circuit module by optical fiber and machinery is cut Change between unit.
Preferably, described mechanical switch cell operation step is as follows：
S1：The light power requirements p for the ONU being connected with mechanical switch unit is calculated, calculation formula is, p in formulai For the demand power of each business in power network, AiFor the weight coefficient of the business, KiFor i-th section of optical fiber attenuation amount, LiFor i-th Flexible jumper attenuation, Fi are i-th of fused fiber splice joint attenuation, McSpent for optical fiber is more than needed, when transmission range is less than 5km When, Mc[1,2) scope value, when transmission range is less than 10km more than 5km, Mc[2,3) scope value, work as transmission When distance is more than 10km, McTake the numerical value more than 3；
S2：Light power requirements p result of calculations is corresponding with form, select the one-to-two optical splitter for adapting to ONU light power requirements；
S3：Optical splitter switch motor is controlled by microprocessor module, rotor is switched to corresponding with optical splitter change over adapter One-to-two optical splitter；
Preferably, described circuit module includes upward signal regenerative circuit, downstream signal regenerative circuit and goes here and there/go here and there and become Change circuit and DDM digital diagnostics circuitries；The microprocessor module includes FPGA unit and aiding CPU unit, for control machine Tool switch unit and circuit module.
Preferably, described optical splitter switch motor is stepper motor, its angular displacement is controlled by microprocessor module, Switching for one-to-two optical splitter.
Preferably, described one-to-two optical splitter also includes optical splitter switching interface, for optical splitter change over adapter Clamping, the optical splitter switching interface are made up of spring, sheet metal and pad, and the spring and the sheet metal are used for optical splitter Change over adapter slides in and out, and the spring is located at the both sides of optical splitter switching interface, and the sheet metal traverses whole from middle part Individual optical splitter switching interface, it is divided into two panels up and down, the wherein sheet metal at optical splitter switching interface is arc-shaped, herein sheet metal Positive up/down side be spring；Sheet metal wherein in the middle part of optical splitter switching interface is arc-shaped, and its radius of curvature is cut with optical splitter Changing-over is identical；The pad is used to fix in the middle part of sheet metal, the distance between two pads and optical splitter change over adapter diameter It is equal, for fixing optical splitter change over adapter.
Preferably, the optical splitter switching interface also includes positive stop key, the optical splitter change over adapter includes keyway, institute State positive stop key and the keyway is used for pair of the fiber cross-sections of optical splitter switching interface and the fiber cross-sections of optical splitter change over adapter It is accurate.
Preferably, the splitting ratio type of the one-to-two optical splitter is 10:90、20:80、30:70、40:60 and 50: 50, above-mentioned one-to-two optical splitter lines up ring-type from top to bottom successively, for meeting different ONU light power requirements, microprocessor The job step of module control stepper motor is as follows：
S1：Microprocessor module control stepper motor resets, reset position 10:90 one-to-two optical splitters；
S2：The gear n according to corresponding to calculating light power requirements p results obtain one-to-two optical splitter, wherein, 10:90、20:80、 30:70、40:60 and 50:50 one-to-two optical splitters are corresponding in turn to 0,1,2,3,4 and 5 grade；
S3：Microprocessor module sends high level according to gear number to stepper motor, and n shelves send n high level；
S4：Stepper motor, which receives a high level, can move an one-to-two optical splitter in order, receive n high level and then move Onto corresponding one-to-two optical splitter.
Preferably, the upward signal regenerative circuit includes uplink receiving and amplifying unit and up transmitting element, For being amplified again to upward signal, reshaping and again timing, by and go here and there/serial to parallel conversion circuit and DDM numerical diagnostics electricity Road electrically connects with FPGA unit.
Preferably, the downstream signal regenerative circuit includes downlink reception and amplifying unit and descending transmitting element, For being amplified again to downstream signal, reshaping and timing again, by and go here and there/serial to parallel conversion circuit is electrically connected with FPGA unit Connect.
As preferential, the GEPON optical repeaters for intelligent grid also include reset key and indicator lamp, the indicator lamp Including up indicator lamp and descending indicator lamp, the descending indicator lamp is used for representing that optical repeater is received from the descending of OLT Optical signal, the front outside of optical repeater is mechanically fastened at, descending indicator lamp is red LED lamp；The up indicator lamp is used for Represent that optical repeater receives the uplink optical signal from ONU, be mechanically fastened at the front outside of optical repeater, descending indicator lamp For green LED lamp.
The present invention substantial effect be：A kind of mechanical switch unit is added in traditional optical repeater, solves root According to ONU demand assignment luminous power the problem of.
Brief description of the drawings
Fig. 1 is the GEPON network topological diagrams of one-level optical repeater.
Fig. 2 is the GEPON optical repeater structure charts for intelligent grid.
Fig. 3 is the mechanical switch cellular construction figure in this GEPON optical repeaters.
Fig. 4 is optical splitter change over adapter and interface structure sectional view.
In figure：1st, mechanical switch unit, 2, WDM units, 3, circuit module, 4, microprocessor module, 5, power subsystem, 6, Downlink reception and amplifying unit, 7, descending transmitting element, 8, up transmitting element, 9, uplink receiving and amplifying unit, 10, simultaneously String/serial to parallel conversion circuit, 11, FPGA unit, 12, reset key and indicator lamp, 13, aiding CPU unit, 14, Ethernet interface, 15th, optical splitter switch motor, 16, optical splitter change over adapter, 17,10:90 one-to-two optical splitters, 18,20:80 one-to-two are divided Device, 19,30:70 one-to-two optical splitters, 20,40:60 one-to-two optical splitters, 21,50:50 one-to-two optical splitters, 22, optical splitter cuts Alias, 23, the fiber cross-sections of optical splitter switching interface, 24, the fiber cross-sections of optical splitter change over adapter, 25, positive stop key, 26, Keyway, 27, sheet metal, 28, spring, 29, pad, 30, DDM digital diagnostics circuitries.
Embodiment
Below by specific embodiment, and with reference to accompanying drawing, the embodiment of the present invention is further described in detail.
Fig. 1 is the GEPON network topological diagrams of one-level optical repeater, and typical power system GEPON networks include webmaster meter Calculation machine, OLT, optical splitter, GEPON optical repeaters and some ONU, wherein OLT are the terminal devices for connecting light main line, OLT is used to send Ethernet data to ONU with broadcast mode, is typically a little arrived using optical splitter to realize in GEPON networks The light splitting function of multiple spot.Because GEPON has the characteristics that cost is low, powerful, networking flexibility, so being increasingly becoming soft exchange The mainstream technology of net, but unlike that telecommunications network, telecommunications network typically uses the optical splitter of multiport number, with one point 16, one point 32 optical splitter dosages are most, so the series of optical splitter is less, typically within two-stage, and intelligent grid GEPON ONU Distribution is distant between ONU then than sparse, mainly uses one-to-two optical splitter, especially should in chain and hand in hand networking Even more so in, this network structure optical power fluctuation is unreasonable, so optical splitter series is more, the light work(of prime ONU distribution Rate is relatively more, and waste is larger, and the luminous power of rear class ONU distribution is reduced step by step, then insufficient to end ONU power, limits access Intelligent grid GEPON ONU quantity, while standby optical loop also needs to OLT and provides the connection of PON mouths, now OLT can also occupy ONU interface resources, so as to limit ONU quantity.As long as shown in figure 1, one-level light relaying is added in the centre position of fiber optic network Device, it is possible to which the power budget of optical link is lifted one times.If mechanical switch unit is added in traditional GEPON optical repeaters 1, then can is assigned to the power of branching networks, the horse after optical link is lifted according to the regulation in time of the required power of ONU2 Upper adjustment power distribution can improve the utilization ratio of whole light network, and this addresses the problem the demand assignment light according to ONU The problem of power.
As Figure 2-3, a kind of GEPON optical repeaters for intelligent grid include mechanical switch unit 1, WDM units 2nd, circuit module 3, microprocessor module 4 and power subsystem 5, mechanical switch unit 1 include several one-to-two optical splitters, light splitting Device change over adapter 16 and optical splitter switch motor 15, mechanical switch unit 1 is between WDM units 2 and ONU, optical splitter switching The fixed optical splitter change over adapter 16 of rotor of motor 15, optical splitter switch motor 15 are controlled by microprocessor module 4, optical splitter Change over adapter 16 and one-to-two optical splitter clamping, two branch optical fibers of one-to-two optical splitter are connected with ONU；WDM units 2 include Wavelength division multiplexer A and wavelength division multiplexer B, wavelength division multiplexer A are connected between OLT and circuit module 3 by optical fiber, wavelength-division multiplex Device B is connected between circuit module 3 and mechanical switch unit 1 by optical fiber.Circuit module 3 include upward signal regenerative circuit, Downstream signal regenerative circuit and go here and there/serial to parallel conversion circuit 10 and DDM digital diagnostics circuitries 30；Microprocessor module 4 includes FPGA Unit 11 and aiding CPU unit 13, for control machinery switch unit 1 and circuit module 3.Upward signal regenerative circuit includes upper Row receives and amplifying unit 9 and up transmitting element 8, logical for being amplified again to upward signal, reshaping and timing again Cross and go here and there/serial to parallel conversion circuit 10 and DDM digital diagnostics circuitries 30 electrically connect with FPGA unit 11.Downstream signal regenerative circuit bag Downlink reception and amplifying unit 6 and descending transmitting element 7 are included, for being amplified again to downstream signal, reshaping and fixed again When, by and go here and there/serial to parallel conversion circuit 10 electrically connects with FPGA unit 11.Aiding CPU unit 13 is connected in FPGA unit 11, It is directly connected to simultaneously with Ethernet interface 14.
If Fig. 3 is the structure chart of mechanical switch unit 1 in this GEPON optical repeaters, optical splitter switch motor 15 is in figure Stepper motor, its angular displacement are controlled by microprocessor module 4, the switching for one-to-two optical splitter.Optical splitter change over adapter 16 are fixed on the rotor of optical splitter switch motor 15, and microprocessor module 4 often sends an arteries and veins to optical splitter switch motor 15 Signal is rushed, stepper motor will drive optical splitter change over adapter 16 to switch an optical splitter, and one-to-two optical splitter is according to splitting ratio It is divided into five, i.e., 10:90 one-to-two optical splitters 17,20:80 one-to-two optical splitters 18,30:70 one-to-two optical splitters 19,40:60 One-to-two optical splitter 20 and 50:50 one-to-two optical splitters 21, for meeting different ONU light power requirements, pass through mechanical switch Unit 1 switches different one-to-two optical splitters, flexibly to improve the efficiency of whole light network.
Fig. 4 is optical splitter change over adapter and interface structure sectional view, and Fig. 4 illustrates the switching of optical splitter, one-to-two light splitting Device also includes optical splitter switching interface 22, for the clamping of optical splitter change over adapter 16, optical splitter switching interface 22 by spring 28, Sheet metal 27 and pad 29 form, and spring 28 and sheet metal 27 are used for sliding in and out for optical splitter change over adapter 16, spring 28 Positioned at the both sides of optical splitter switching interface 22, sheet metal 27 traverses whole optical splitter switching interface 22 from middle part, is divided into upper and lower two Piece, the sheet metal 27 wherein at optical splitter switching interface 22 are arc-shaped, and the positive up/down side of sheet metal 27 is spring 28 herein； The sheet metal 27 at the wherein middle part of optical splitter switching interface 22 is arc-shaped, and its radius of curvature is identical with optical splitter change over adapter 16； Pad 29 is used to fixing the middle part of sheet metal 27, and the distance between two pads 29 are equal with the diameter of optical splitter change over adapter 16, use In fixed optical splitter change over adapter 16.Optical splitter switching interface 22 includes positive stop key 25, and the optical splitter change over adapter 16 includes Keyway 26, the positive stop key 25 and the keyway 26 are used for the fiber cross-sections and optical splitter change over adapter of optical splitter switching interface 22 The alignment of 16 fiber cross-sections.Optical splitter change over adapter 16 is slided from the side of optical splitter switching interface 22 by two panels sheet metal 27 To among optical splitter switching interface 22, the now compressive deformation of spring 28, the elastic deformation of sheet metal 27, in optical splitter change over adapter 16 Slip into the central process of optical splitter switching interface 22, spring 28 and sheet metal 27 restore, and restoring force causes optical splitter to switch The positive stop key 25 of interface 22 is caught in the keyway 26 of optical splitter change over adapter 16, now the fiber cross-sections 23 of optical splitter switching interface With the Dock With Precision Position of fiber cross-sections 24 of optical splitter change over adapter, two low-loss docking of optical fiber are realized, its insertion loss is less than 0.15dB.Optical splitter change over adapter 16 skids off optical splitter switching from optical splitter switching interface 22 centrally through two panels sheet metal 27 Interface 22, now the compressive deformation of spring 28, the elastic deformation of sheet metal 27, skids off optical splitter switching in optical splitter change over adapter 16 and connects In mouthful 22 central process, spring 28 and sheet metal 27 gradually restore, so as to optical splitter change over adapter 16 completes entirely to slip into/ Skid off the process of optical splitter switching interface 22.
GEPON optical repeaters for intelligent grid also include reset key and indicator lamp 12, and the indicator lamp includes upper Row indicator lamp and descending indicator lamp, the descending indicator lamp are used for representing that optical repeater receives the downlink optical signal from OLT, The front outside of optical repeater is mechanically fastened at, descending indicator lamp is red LED lamp；The up indicator lamp is used for representing in light The uplink optical signal from ONU is received after device, is mechanically fastened at the front outside of optical repeater, descending indicator lamp is green LED.GEPON optical repeaters are the design of industrial clamping-rail, and clamp rail is located at equipment rear portion, and its technical grade is designed to adapt to various Adverse circumstances, strong thunderbolt and strong electromagnetic can be resisted so that the stable operation of whole smart grid security.
Embodiment described above is a kind of preferable scheme of the present invention, not the present invention is made any formal Limitation, there are other variants and remodeling on the premise of without departing from the technical scheme described in claim.

Claims (10)

1. a kind of GEPON optical repeaters for intelligent grid, including mechanical switch unit, WDM units, circuit module, Wei Chu Manage device module and power subsystem, it is characterised in that
The mechanical switch unit includes several one-to-two optical splitters, optical splitter change over adapter and optical splitter switch motor, institute Mechanical switch unit is stated between WDM units and ONU, the fixed optical splitter switching of rotor of the optical splitter switch motor connects Head, optical splitter switch motor is controlled by microprocessor module, the optical splitter change over adapter and one-to-two optical splitter clamping, described Two branch optical fibers of one-to-two optical splitter are connected with ONU；
The WDM units include wavelength division multiplexer A and wavelength division multiplexer B, and wavelength division multiplexer A is connected to OLT and electricity by optical fiber Between the module of road, wavelength division multiplexer B is connected between circuit module and mechanical switch unit by optical fiber.
A kind of 2. GEPON optical repeaters for intelligent grid according to claim 1, it is characterised in that described machine Tool switch unit job step is as follows：
S1：The light power requirements p for the ONU being connected with mechanical switch unit is calculated, calculation formula is, p in formulai For the demand power of each business in power network, AiFor the weight coefficient of the business, KiFor i-th section of optical fiber attenuation amount, LiFor i-th Flexible jumper attenuation, Fi are i-th of fused fiber splice joint attenuation, McSpent for optical fiber is more than needed, when transmission range is less than 5km When, Mc[1,2) scope value, when transmission range is less than 10km more than 5km, Mc[2,3) scope value, work as transmission When distance is more than 10km, McTake the numerical value more than 3；
S2：Light power requirements p result of calculations is corresponding with form, select the one-to-two optical splitter for adapting to ONU light power requirements；
S3：Optical splitter switch motor is controlled by microprocessor module, rotor is switched to corresponding with optical splitter change over adapter One-to-two optical splitter.
A kind of 3. GEPON optical repeaters for intelligent grid according to claim 1, it is characterised in that described electricity Road module includes upward signal regenerative circuit, downstream signal regenerative circuit and goes here and there/serial to parallel conversion circuit and DDM numerical diagnostics electricity Road；
The microprocessor module includes FPGA unit and aiding CPU unit, for control machinery switch unit and circuit module.
A kind of 4. GEPON optical repeaters for intelligent grid according to claim 1, it is characterised in that described point Light device switch motor is stepper motor, and its angular displacement is controlled by microprocessor module, the switching for one-to-two optical splitter.
5. a kind of GEPON optical repeaters for intelligent grid according to claim 1 or 4, it is characterised in that described One-to-two optical splitter also includes optical splitter switching interface, for optical splitter change over adapter clamping,
The optical splitter switching interface is made up of spring, sheet metal and pad,
The spring and the sheet metal are used for sliding in and out for optical splitter change over adapter, and the spring is located at optical splitter switching The both sides of interface, the sheet metal traverse whole optical splitter switching interface from middle part, are divided into two panels up and down,
Sheet metal wherein at optical splitter switching interface is arc-shaped, and the positive up/down side of sheet metal is spring herein；
Sheet metal wherein in the middle part of optical splitter switching interface is arc-shaped, and its radius of curvature is identical with optical splitter change over adapter；
The pad is used to fix in the middle part of sheet metal, and the distance between two pads are equal with optical splitter change over adapter diameter, use In fixed optical splitter change over adapter.
A kind of 6. GEPON optical repeaters for intelligent grid according to claim 5, it is characterised in that the light splitting Device switching interface also includes positive stop key, and the optical splitter change over adapter includes keyway, and the positive stop key and the keyway are used to divide The alignment of the fiber cross-sections of light device switching interface and the fiber cross-sections of optical splitter change over adapter.
7. a kind of GEPON optical repeaters for intelligent grid according to claim 5, it is characterised in that described one point The splitting ratio type of two optical splitters is 10:90、20:80、30:70、40:60 and 50:50, above-mentioned one-to-two optical splitter is successively from upper Ring-type is lined up under, for meeting different ONU light power requirements, the job step of microprocessor module control stepper motor is such as Under：
S1：Microprocessor module control stepper motor resets, reset position 10:90 one-to-two optical splitters；
S2：The gear n according to corresponding to calculating light power requirements p results obtain one-to-two optical splitter, wherein, 10:90、20:80、 30:70、40:60 and 50:50 one-to-two optical splitters are corresponding in turn to 0,1,2,3,4 and 5 grade；
S3：Microprocessor module sends high level according to gear number to stepper motor, and n shelves send n high level；
S4：Stepper motor, which receives a high level, can move an one-to-two optical splitter in order, receive n high level and then move Onto corresponding one-to-two optical splitter.
8. a kind of GEPON optical repeaters for intelligent grid according to claim 3, it is characterised in that described up Signal regeneration circuit includes uplink receiving and amplifying unit and up transmitting element, for being amplified again to upward signal, Reshaping and again timing, by and go here and there/serial to parallel conversion circuit and DDM digital diagnostics circuitries electrically connect with FPGA unit.
9. a kind of GEPON optical repeaters for intelligent grid according to claim 3, it is characterised in that described descending Signal regeneration circuit includes downlink reception and amplifying unit and descending transmitting element, for being amplified again to downstream signal, Reshaping and again timing, by and go here and there/serial to parallel conversion circuit electrically connects with FPGA unit.
10. a kind of GEPON optical repeaters for intelligent grid according to claim 1, it is characterised in that also include multiple Position button and indicator lamp, the indicator lamp include up indicator lamp and descending indicator lamp,
The descending indicator lamp is used for representing that optical repeater receives the downlink optical signal from OLT, is mechanically fastened at light relaying The front outside of device, descending indicator lamp is red LED lamp；
The up indicator lamp is used for representing that optical repeater receives the uplink optical signal from ONU, is mechanically fastened at light relaying The front outside of device, descending indicator lamp is green LED lamp.
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CN207150599U (en) * 2017-07-13 2018-03-27 国网浙江海盐县供电公司 A kind of GEPON optical repeaters for intelligent grid

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US20090252495A1 (en) * 2006-06-30 2009-10-08 Applied Materials, Inc. Method and apparatus for demultiplexing optical signals in a passive optical network
US20100272436A1 (en) * 2009-04-27 2010-10-28 Hitachi, Ltd. Optical passive network system and its operation method
CN102590953A (en) * 2011-09-13 2012-07-18 博创科技股份有限公司 Wavelength-selective optical switch
CN104954073A (en) * 2014-04-04 2015-09-30 贵州电网公司六盘水供电局 Built-in-ONU-contained GEPON optical relay device
CN207150599U (en) * 2017-07-13 2018-03-27 国网浙江海盐县供电公司 A kind of GEPON optical repeaters for intelligent grid

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