CN103209023A - Intelligent optical network unit (ONU) optical transceiver module capable of automatically locking and controlling emergency light emitting - Google Patents
Intelligent optical network unit (ONU) optical transceiver module capable of automatically locking and controlling emergency light emitting Download PDFInfo
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- CN103209023A CN103209023A CN2013101294309A CN201310129430A CN103209023A CN 103209023 A CN103209023 A CN 103209023A CN 2013101294309 A CN2013101294309 A CN 2013101294309A CN 201310129430 A CN201310129430 A CN 201310129430A CN 103209023 A CN103209023 A CN 103209023A
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Abstract
An intelligent ONU optical transceiver module capable of automatically locking and controlling emergency light emitting comprises an optical receiving unit 1 and an optical sending unit 3. The optical receiving unit 1 receives optical signals and outputs high-speed serial data signals to an optical module interface; the optical sending unit 3 inputs the high-speed serial data signals from the optical module interface and sends optical signals; a control unit 2 is connected onto the optical module interface, connected with the optical receiving unit 1, monitors emergency sending signals of an ONU master chip and signal sending of the optical sending unit 3 in real time and turns off a laser of the optical sending unit 2 to stop sending of ONU uplink signals when the emergency sending signals or the signal sending of the optical sending unit 3 exceeds a preset threshold.
Description
Technical field
The present invention relates to a kind of optical transceiver module.
Background technology
At passive optical network (PON, comprise GPON and EPON) in, what optical line terminal (OLT) and a plurality of optical network unit (ONU) adopted is that point is to multi-point communication (being to meet 32 or 64 ONU under the OLT port generally speaking), therefore ONU adopts time division multiplexing mode to the uplink of OLT, just can open its laser when an ONU sends data according to the indication of OLT carries out data and sends, data send to finish must close laser, sends with the data of not disturbing other ONU.So ONU is extremely important at the moment of appointment opening and closing laser according to the indication of OLT, otherwise will cause the paralysis of whole PON network.In actual applications, luminous (luminous time slot entanglement or luminous time slot are long at the time slot of regulation not according to the indication of OLT for ONU, be commonly called as rogue ONU) then can influence the light signal of all ONU under the same PON interface, cause all other normal ONU all can lose communication and control with OLT, therefore can't judge it is the fault that ONU occurs at the OLT end, even if hand inspection ONU one by one, because ONU mostly is placed in user's family, checking to the doorstep also has a lot of inconvenience.Along with the large tracts of land of PON network is disposed, this type of problem is more and more outstanding, is greatly perplexing Virtual network operator, does not up to the present also have effective solution.Through test with analyze, the reason of finding to cause this type of fault substantially all is that fault has appearred in the optical module of ONU, can't be controlled by the control of the burst of ONU master chip.
Optical transceiver module comprises the sudden two parts that transmit and receive as the chief component among the ONU.Burst transmissions partly is: the signal of telecommunication of importing a constant bit rate is launched the modulated light signal of respective rate through the driving chip processing rear drive semiconductor laser (LD) of inside, its inside has the burst sending controling circuit, accept the burst control signal of ONU master chip output, open and close control by the bias current to laser, realize that laser sends the opening and closing of signal.Because present optical module all is passive electricity/light conversion, can't realize Fault Isolation and control when breaking down.
Summary of the invention
In order to solve the problem luminous out of control (it is long generally to show as luminous time slot entanglement or luminous time slot) of existing ONU optical transceiver module, the invention provides a kind of luminous intelligent ONU optical transceiver module of burst that automatically locks and control.
The technical solution adopted for the present invention to solve the technical problems is:
A kind ofly automatically lock and control the luminous intelligent ONU optical transceiver module of burst, comprise light receiving unit and Optical Transmit Unit, described light receiving unit all is connected with the optical module interface with Optical Transmit Unit, and described intelligent optical transceiver module also comprises in order to realize monitoring automatically and the luminous Monitoring and Controlling unit of control burst.
Light receiving unit comprises main amplifier and ROSA assembly, main amplifier adopts limiting amplifier, the ROSA assembly is integrated photodetector, transreactance amplifier, one-level voltage amplifier, accept the light signal strength indicating device, finish signal opto-electronic conversion, amplification and signal strength signal intensity deixis.
The light transmitting element comprises laser modulator and TOSA module, and laser modulator is straight mode driver commonly used, and the TOSA module is that straight mode is annotated optical device, and it is built-in with the high response speed back light detector.
Monitoring unit comprises a microprocessor, an analog to digital converter, a memory, a light emission controller, a burst control device, a luminescence detector.
Burst signal detection device in described Monitoring and Controlling unit to the burst of sending here from the ONU master chip transmit control signal (control laser open pulse signal) also detect in real time.The time that obtains happening suddenly and transmit control signal.When general EPON ONU normally moved, the pulse length that transmits control signal generally below 1ms, went wrong if this time, illustrates EPON ONU master chip greater than 1ms.When GPON ONU normally moved, the pulse length that transmits control signal generally below 125us, went wrong if this time exceeds 125us explanation GPON ONU master chip
Further, if finding the ONU master chip breaks down, the power supply that the Laser Modulation driver is closed by transmitting signal controller in optical module Monitoring and Controlling unit is closed the laser of optical module, stop the transmission of ONU upward signal, and can break down by optical module fault indication signal alignment ONU master chip report optical module.
Further, if the ONU master chip transmits control signal normally, luminescence detector is monitored in real time to the transmission light of laser in the Monitoring and Controlling unit, under the normal condition, transmitting optical power should be less than-45dBm when laser cut out, and luminous power should be greater than-5dBm when laser was opened.The transmission signal time of opening that just can detect laser by luminescence detector carries out sampled measurements, can draw the luminous slot length of laser accordingly, (EPON ONU is 1ms to the maximum if the luminous slot length of laser exceeds due scope, GPON ONU is 125us to the maximum), illustrate that the ONU optical module breaks down.
Further, if the ONU optical module goes wrong, the power supply that the Laser Modulation driver is closed by transmitting signal controller in optical module Monitoring and Controlling unit is closed the laser of optical module, stop the transmission of ONU upward signal, so just realized that the ONU that optical module breaks down can close the luminous of its optical module automatically, and do not influenced the operate as normal of other ONU.
Further, if optical module Monitoring and Controlling unit finds that this fault appears in optical module, can break down by optical module fault indication signal alignment ONU master chip report optical module.
Beneficial effect of the present invention mainly shows: can monitor the failure light emission of optical transceiver module and the burst fault of ONU master chip automatically, and can close the luminous of optical module automatically after this type of fault occurring.This optical transceiver module can be good at solving the difficult problem that rogue ONU in the present PON optical-fiber network disturbs other operate as normal ONU.
Description of drawings
Fig. 1 is that point of the present invention is to the PON network configuration block diagram of multiple spot.
Fig. 2 is theory diagram of the present invention.
Fig. 3 is structured flowchart of the present invention.
Embodiment
Below in conjunction with accompanying drawing the present invention is further described.With reference to accompanying drawing 1-3:
With reference to Fig. 1, in EPON (PON) network, what optical line terminal (OLT) and a plurality of optical network unit (ONU) adopted is that point is to multi-point communication, OLT is to the communication of the descending employing broadcast mode of ONU, ONU adopts time division multiplexing mode to the uplink of OLT, just can open its laser and carry out data and send when an ONU sends data according to the indication of OLT, data send to finish must close laser, sends with the data of not disturbing other ONU.
With reference to Fig. 2, automatically lock and control the luminous intelligent ONU optical transceiver module of burst, comprise light receiving unit 1, light transmitting element 3; Described light is accepted unit 1 and is accepted light signal, to described optical module interface output high-speed serial data signal; Described smooth transmitting element 3 sends light signal from optical module interface input high-speed serial data signal; It is characterized in that:
Also be connected with a control unit 2 on the described optical module interface, control unit 2 connects light and accepts unit 1, the burst of 2 pairs of ONU master chips of described control unit sends signal and monitors in real time, when burst sends signal above preset threshold value, control unit 2 closes the laser of black out transmitting element 3, stops the transmission of ONU upward signal;
With reference to Fig. 3, described light receiving unit 1 comprises; Main amplifier 11 and ROSA assembly 12; Described smooth transmitting element 3 comprises Laser Modulation driver 31 and TOSA assembly 32;
Described control unit 2 comprises microprocessor 21, and described microprocessor 21 is connected with analog to digital converter 22, burst signal detection device 23, light mission controller 24, luminescence detector 25, memory 26; Described analog to digital converter 22 connects described ROSA assembly 12; The burst that described burst signal detection device 23 is accepted the ONU master chip sends signal, and the transmission signal that will happen suddenly is transferred to Laser Modulation driver 31; In the burst length that microprocessor 21 obtains happening suddenly and transmits control signal, when luminous duration signal surpassed threshold value, microprocessor 21 sent the command signal of cutting out Laser Modulation driver 31 to light mission controller 24; Described microprocessor 21 breaks down by optical module fault indication signal alignment ONU master chip report ONU master chip; 25 pairs of TOSA assemblies 32 of described luminescence detector are sampled, and obtain the length that laser is opened luminous time slot, and input microprocessor 21; 21 pairs of luminous slot lengths of laser of microprocessor compare with the threshold value that is pre-stored in the memory 26, if greater than threshold value, then microprocessor 21 instruction light mission controllers 24 are closed the Laser Modulation driver.
Described microprocessor 21 breaks down by optical module fault indication signal alignment ONU master chip report optical module, and the ONU master chip can inquire fault type by communication interface.
Described threshold value adopts 1ms for EPON ONU, adopts 125us for GPON ONU.
The described content of this specification embodiment only is enumerating the way of realization of inventive concept; protection scope of the present invention should not be regarded as only limiting to the concrete form that embodiment states, protection scope of the present invention also reach in those skilled in the art conceive according to the present invention the equivalent technologies means that can expect.
Claims (3)
1. the luminous intelligent ONU optical transceiver module of burst be can automatically lock and control, light receiving unit 1, light transmitting element 3 comprised; Described light is accepted unit 1 and is accepted light signal, to described optical module interface output high-speed serial data signal; Described smooth transmitting element 3 sends light signal from optical module interface input high-speed serial data signal; It is characterized in that:
Also be connected with a control unit 2 on the described optical module interface, control unit 2 connects light and accepts unit 1, the burst of 2 pairs of ONU master chips of described control unit sends signal and monitors in real time, when burst sends signal above preset threshold value, control unit 2 closes the laser of black out transmitting element 3, stops the transmission of ONU upward signal;
Described light receiving unit 1 comprises; Main amplifier 11 and ROSA assembly 12; Described smooth transmitting element 3 comprises Laser Modulation driver 31 and TOSA assembly 32;
Described control unit 2 comprises microprocessor 21, and described microprocessor 21 is connected with analog to digital converter 22, burst signal detection device 23, light mission controller 24, luminescence detector 25, memory 26; Described analog to digital converter 22 connects described ROSA assembly 12; The burst that described burst signal detection device 23 is accepted the ONU master chip sends signal, and the transmission signal that will happen suddenly is transferred to Laser Modulation driver 31; In the burst length that microprocessor 21 obtains happening suddenly and transmits control signal, when luminous duration signal surpassed threshold value, microprocessor 21 sent the command signal of cutting out Laser Modulation driver 31 to light mission controller 24; Described microprocessor 21 breaks down by optical module fault indication signal alignment ONU master chip report ONU master chip; 25 pairs of TOSA assemblies 32 of described luminescence detector are sampled, and obtain the length that laser is opened luminous time slot, and input microprocessor 21; 21 pairs of luminous slot lengths of laser of microprocessor compare with the threshold value that is pre-stored in the memory 26, if greater than threshold value, then microprocessor 21 instruction light mission controllers 24 are closed the Laser Modulation driver.
2. optical transceiver module as claimed in claim 1 is characterized in that: described microprocessor 21 breaks down by optical module fault indication signal alignment ONU master chip report optical module, and the ONU master chip can inquire fault type by communication interface.
3. optical transceiver module as claimed in claim 2 is characterized in that: described threshold value adopts 1ms for EPON ONU, adopts 125us for GPON ONU.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013101294309A CN103209023A (en) | 2013-04-15 | 2013-04-15 | Intelligent optical network unit (ONU) optical transceiver module capable of automatically locking and controlling emergency light emitting |
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| CN2013101294309A CN103209023A (en) | 2013-04-15 | 2013-04-15 | Intelligent optical network unit (ONU) optical transceiver module capable of automatically locking and controlling emergency light emitting |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110497985A (en) * | 2018-05-18 | 2019-11-26 | 株式会社岛野 | Telescopic equipment, height-adjustable seat bar and bicycle assembly parts control system for human powered vehicle |
| CN116340241A (en) * | 2023-05-19 | 2023-06-27 | 无锡国芯微高新技术有限公司 | Serial communication protection method, device, equipment and storage medium |
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| JP2010187189A (en) * | 2009-02-12 | 2010-08-26 | Sumitomo Electric Ind Ltd | Optical transceiver |
| CN101820316A (en) * | 2009-02-27 | 2010-09-01 | ***通信集团公司 | Method for closing constant optical network unit and optical network unit thereof |
| WO2012114827A1 (en) * | 2011-02-25 | 2012-08-30 | 三菱電機株式会社 | Communication system, station side communication device, user side communication device, communication method, and control device |
| CN102749684A (en) * | 2012-03-26 | 2012-10-24 | 武汉华工正源光子技术有限公司 | Laser transceiving device, manufacturing method thereof and method for improving temperature operation range thereof |
| CN102916742A (en) * | 2012-11-06 | 2013-02-06 | 烽火通信科技股份有限公司 | Method and device for detecting and closing constant light-emitting optical network unit |
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2013
- 2013-04-15 CN CN2013101294309A patent/CN103209023A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2010187189A (en) * | 2009-02-12 | 2010-08-26 | Sumitomo Electric Ind Ltd | Optical transceiver |
| CN101820316A (en) * | 2009-02-27 | 2010-09-01 | ***通信集团公司 | Method for closing constant optical network unit and optical network unit thereof |
| WO2012114827A1 (en) * | 2011-02-25 | 2012-08-30 | 三菱電機株式会社 | Communication system, station side communication device, user side communication device, communication method, and control device |
| CN102749684A (en) * | 2012-03-26 | 2012-10-24 | 武汉华工正源光子技术有限公司 | Laser transceiving device, manufacturing method thereof and method for improving temperature operation range thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110497985A (en) * | 2018-05-18 | 2019-11-26 | 株式会社岛野 | Telescopic equipment, height-adjustable seat bar and bicycle assembly parts control system for human powered vehicle |
| CN110497985B (en) * | 2018-05-18 | 2022-05-27 | 株式会社岛野 | Telescoping apparatus, height adjustable seat post and bicycle component control system for human powered vehicles |
| CN116340241A (en) * | 2023-05-19 | 2023-06-27 | 无锡国芯微高新技术有限公司 | Serial communication protection method, device, equipment and storage medium |
| CN116340241B (en) * | 2023-05-19 | 2023-08-01 | 无锡国芯微高新技术有限公司 | Serial communication protection method, device, equipment and storage medium |
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Application publication date: 20130717 |