CN105119652A - Optical cable main/standby routing controller - Google Patents
Optical cable main/standby routing controller Download PDFInfo
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- CN105119652A CN105119652A CN201510604314.7A CN201510604314A CN105119652A CN 105119652 A CN105119652 A CN 105119652A CN 201510604314 A CN201510604314 A CN 201510604314A CN 105119652 A CN105119652 A CN 105119652A
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Abstract
The invention discloses an optical cable main/standby routing controller. The controller includes a first optical-to-electric unit, a second optical converting unit, a 3R detecting control unit, a device monitoring unit, an electric-to-optical unit, and a power supply unit. The optical-to-electric unit receives a main optical cable optical signal sent by a main optical cable, converts the signal into a main electric signal, sends the main electric signal to the 3R detecting control unit, and sends an optical-to-electric main state signal to the device monitoring unit. The device monitoring unit receives the optical-to-electric main state signal, a switch control signal is obtained after the optical-to-electric main state signal is processed, and the switch control signal is sent to the 3R detecting control unit through a CPLD. The 3R detecting control unit selects one electric signal, makes the electric signal serve as an electric signal that is needed by an optical cable terminal device, and sends the electric signal to the electric-to-optical unit. The electric-to-optical unit simultaneously transmits the electric signal to a light receiving end of the optical cable terminal device and the device monitoring unit. The controller effectively avoids the insertion loss of optical signals, so the optical signals are transmitted in a lossless manner, and safe communication and running of optical cables are guaranteed.
Description
Technical field
The present invention relates to the route protection in light fiber optic communications field, specifically the active and standby path control deivce of a kind of optical cable.
Background technology
The protection of SDH ring network is all adopted in the fiber optic cable plant handoff technique of current operation, but helpless for exchange ether business, also helpless to point-to-point optical communication optical cable.The active and standby path control deivce of light path based on mechanical optical switch inevitably brings junction loss at mechanical connection place, and mechanical dimension can not crash consistency, light signal is caused to have the Insertion Loss of the 3-5dbm caused because of light splitting at least, insertion loss is large, and this loss also may cause original optical cable transmission to interrupt; The relay that mechanical optical switch adopts needs current drives to produce magnetic force to carry out control switch and carry out action, the inevitable drop-out of all light signals, therefore light signal switching time is long, the lossing signal time is long, useful life and environment receive restriction greatly, cannot adapt to the field conditions of various fiber optic cable communications.
Summary of the invention
For above-mentioned prior art Problems existing, the invention provides the active and standby path control deivce of a kind of optical cable, this controller can effectively avoid light signal insertion loss, amplifying optical signals simultaneously, shorten light signal switching time, reduce dropout, thus light signal is transmitted when harmless, ensure fiber optic cable communications safe operation.
To achieve these goals, the invention provides the active and standby path control deivce of a kind of optical cable, comprise that the first light turns electric unit, the second optical conversion element, 3R detect control unit, monitoring of tools unit, electricity turn light unit and power subsystem;
Described first light turns electric unit and receives primary optical fiber cables signal that primary optical cable sends and be converted to the primary signal of telecommunication and send to described 3R to detect control unit, sends light simultaneously and turns electric master state signal to described monitoring of tools unit;
Described second light turns electric unit and receives the reserve cable light signal that sends of reserve cable and be converted to standby electricity signal and send to described 3R to detect control unit, sends light simultaneously and turns electric stand-by state signal to described monitoring of tools unit;
Described monitoring of tools unit is made up of webmaster plate, wireless transport module, CPLD and MPU, and described MPU receives that described light turns electric master state signal, light turns electric stand-by state signal and carries out processing rear acquisition switch-over control signal and send to described 3R to detect control unit by described CPLD;
Described 3R detects control unit and receives the described primary signal of telecommunication, standby electricity signal and switch-over control signal, and selects the described primary signal of telecommunication and the standby electricity signal Zhong mono-road signal of telecommunication to send to described electricity to turn light unit as the signal of telecommunication needed for optical fiber cable termination equipment according to described switch-over control signal;
Described 3R detects control unit and is made up of switch unit and three 3R amplifying units, described switch unit is by comparator, microprocessor and electronic switch composition, the switch-over control signal that microprocessor is sent according to described CPLD by comparator carries out Quality estimation to through the primary signal of telecommunication of 3R amplifying unit process and standby electricity signal and compares, if the primary signal of telecommunication and standby electricity signal all exist, then by comparator to select in the primary signal of telecommunication and standby electricity signal current value comparatively the great mono-road signal of telecommunication transmit through 3R amplifying unit to electronic switch as electrical signal transfer needed for optical fiber cable termination equipment,
Described 3R amplifying unit is used for when resetting the signal of telecommunication, heavily regenerate and weigh Shape correction;
Described electricity turns light unit and receives described 3R and detect the electrical signal transfer that sends of control unit to the receipts light end of described optical fiber cable termination equipment; Electricity is turned light state signal simultaneously and send to described monitoring of tools unit;
Received electricity is turned light signal state by the MPU of described monitoring of tools unit, light turns the electric primary signal of telecommunication and light turn electric stand-by state signal transmission give described webmaster plate carry out changing and send to described monitoring host computer to show through described wireless transport module, wireless mesh network;
Described power subsystem be used for for described first light turn electric unit, the second light turns electric unit, 3R detects control unit, monitoring of tools unit and electricity and turns light unit and provide system power supply.
Electronic switch is made up of two triode gate circuit, and the control electrode of electronic switch is exported by Microprocessor S3C44B0X 0 or 1 to control break-make.
Described wireless mesh network is interconnected by multiple wireless exchange board and forms.
The present invention adopts 3R to detect control unit, and shorten the switching time of 1/2 than the light path protection instrument of traditional mechanical optical switch, electronic switch is less than 10ms instantaneous switching time; lossing signal is less than 10ms; not interrupt communication business, thus shorten light signal switching time, reduce dropout.Mechanical optical switch needs motor to drive, and time and the contact point of Mechanical Moving are uncontrollable, and useful life is limited; And electronic type optical switch of the present invention does not need to drive, substantially reduce switching time.3R amplifying unit is all provided with at two inputs of switch unit and output in the present invention, the time domain distortion of digit pulse is eliminated when adopting 3R amplifying unit to reset light signal, heavily regenerate the power output ensureing that signal transmits in every bar optical cable, carry out the pulse distortion that reformation shape eliminates the factor generations such as dispersion, thus can effectively avoid light signal insertion loss, amplifying optical signals simultaneously, improve intensity and the quality of light signal, the insertion loss caused because of light splitting can not be introduced, affect circuit to run, adopt three 3R amplifying units, can effectively reduce the wastage, ensure the quality of Signal transmissions.And traditional mechanical optical switch is added among system due to the inevitable insertion loss of optical switch, and system is not powered, amplification strengthens function, cannot use when original system does not have sufficient luminous power redundancy, add light reflection and the influence of light of contact point simultaneously.The present invention can be widely used in the private line services such as electric power, telecommunications, bank, public security, video conferencing, or in other important data service, for user provides highly reliable, high performance light signal to protect transmission channel.The business supported comprises: gigabit main line active-standby system, SDH/PDH/FC/POS Optical Channel Protection system, visual line-monitoring system etc.
Comprehensively above-mentioned, the present invention adopts 3R to detect control unit and realizes ultrahigh speed switching, speed-sensitive switch routing is carried out for important two ways of optical signals circuit, and 3R amplification is carried out to the light signal after routing product and routing, within the time of Microsecond grade, complete TURP change, be much better than the 50ms of mechanical optical switch switching time.
Accompanying drawing explanation
Fig. 1 is structured flowchart of the present invention;
Fig. 2 is the structured flowchart of middle switch unit of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
As depicted in figs. 1 and 2, the active and standby path control deivce of a kind of optical cable, comprises that the first light turns electric unit, the second optical conversion element, 3R detect control unit, monitoring of tools unit, electricity turn light unit and power subsystem;
Described first light turns electric unit and receives primary optical fiber cables signal that primary optical cable sends and be converted to the primary signal of telecommunication and send to described 3R to detect control unit, sends light simultaneously and turns electric master state signal to described monitoring of tools unit;
Described second light turns electric unit and receives the reserve cable light signal that sends of reserve cable and be converted to standby electricity signal and send to described 3R to detect control unit, sends light simultaneously and turns electric stand-by state signal to described monitoring of tools unit;
It is for the ease of the process of hardware circuit to signal that two light turn electric unit, and its composition comprises optical secondary module (OpticalSubassembly; And electronics secondary module (ElectricalSubassembly OSA); ESA) two large divisions; First optical secondary module part is using GaAs (GaAs), indium phosphide (InP), InGaAsP (InGaAs) etc. as luminous and inspection luminescent material, forms light signal; Electronics secondary module inside comprises transmits drive IC and receives drive IC, respectively in order to drive laser diode and inspection optical diode, forms the signal of telecommunication; Thus the light signal making main road be come by standby route optical cable can be converted to the signal of telecommunication.
Described monitoring of tools unit is made up of webmaster plate, wireless transport module, CPLD and MPU, and described MPU receives that described light turns electric master state signal, light turns electric stand-by state signal and carries out processing rear acquisition switch-over control signal and send to described 3R to detect control unit by described CPLD;
Described 3R detects control unit and receives the described primary signal of telecommunication, standby electricity signal and switch-over control signal, and selects the described primary signal of telecommunication and the standby electricity signal Zhong mono-road signal of telecommunication to send to described electricity to turn light unit as the signal of telecommunication needed for optical fiber cable termination equipment according to described switch-over control signal;
If main road is lost by the signal of telecommunication and the standby route signal of telecommunication Zhong You mono-road signal of telecommunication, then another road signal of telecommunication is transmitted as electrical signal transfer needed for optical fiber cable termination equipment to electronic switch; If light main road is all lost by the signal of telecommunication and the standby route signal of telecommunication, then electronic switch attonity.
Described 3R detects control unit and is made up of switch unit and three 3R amplifying units, described switch unit is by comparator, microprocessor and electronic switch composition, the switch-over control signal that microprocessor is sent according to described CPLD by comparator carries out Quality estimation to through the primary signal of telecommunication of 3R amplifying unit process and standby electricity signal and compares, if the primary signal of telecommunication and standby electricity signal all exist, then by comparator to select in the primary signal of telecommunication and standby electricity signal current value comparatively the great mono-road signal of telecommunication transmit through 3R amplifying unit to electronic switch as electrical signal transfer needed for optical fiber cable termination equipment,
Described 3R amplifying unit is used for when resetting the signal of telecommunication, heavily regenerate and weigh Shape correction; 3R amplifying unit adopts Maxim3872 as main process chip, for equipment de-sign provides discrete velocity, multiple speed and continuously adjustable clock and data recovery integrated circuit, can the application of light integrated protocol the unknown, and automatically lock speed and turn electric data flow at the input light of 12.3Mbps ~ 2.7Gbps, without the need to reference clock, simultaneously by the photosignal data rate of serial line interface report acquisition.
Described electricity turns light unit and receives described 3R and detect the electrical signal transfer that sends of control unit to the receipts light end of described optical fiber cable termination equipment; Electricity is turned light state signal simultaneously and send to described monitoring of tools unit;
Received electricity is turned light signal state by the MPU of described monitoring of tools unit, light turns the electric primary signal of telecommunication and light turn electric stand-by state signal transmission give described webmaster plate carry out changing and send to described monitoring host computer to show through described wireless transport module, wireless mesh network;
Described power subsystem be used for for described first light turn electric unit, the second light turns electric unit, 3R detects control unit, monitoring of tools unit and electricity and turns light unit and provide system power supply.Power subsystem alternating current 220V, or/and direct current-48V, then exports the power supply required for each unit; Ensure that protection instrument backs up power supply while obtaining alternating current 220V and direct current-48 power supply, guarantee the reliable and stable operation protecting instrument.
Electronic switch is made up of two triode gate circuit, and the control electrode of electronic switch is exported by Microprocessor S3C44B0X 0 or 1 to control break-make.
Described wireless mesh network is interconnected by multiple wireless exchange board and forms.Wireless mesh Network Communication has the advantage of applied range and high reliability.
Adopt 3R to detect control unit, shorten the switching time of 1/2 than the light path protection instrument of traditional mechanical optical switch, electronic switch is less than 10ms instantaneous switching time; lossing signal is less than 10ms; not interrupt communication business, thus shorten light signal switching time, reduce dropout.Mechanical optical switch needs motor to drive, and time and the contact point of Mechanical Moving are uncontrollable, and useful life is limited; And electronic type optical switch of the present invention does not need to drive, substantially reduce switching time.3R amplifying unit is all provided with at two inputs of switch unit and output in the present invention, the time domain distortion of digit pulse is eliminated when adopting 3R amplifying unit to reset light signal, heavily regenerate the power output ensureing that signal transmits in every bar optical cable, carry out the pulse distortion that reformation shape eliminates the factor generations such as dispersion, thus can effectively avoid light signal insertion loss, amplifying optical signals simultaneously, improve intensity and the quality of light signal, the insertion loss caused because of light splitting can not be introduced, affect circuit to run, adopt three 3R amplifying units, can effectively reduce the wastage, ensure the quality of Signal transmissions.And traditional mechanical optical switch is added among system due to the inevitable insertion loss of optical switch, and system is not powered, amplification strengthens function, cannot use when original system does not have sufficient luminous power redundancy, add light reflection and the influence of light of contact point simultaneously.The present invention can be widely used in the private line services such as electric power, telecommunications, bank, public security, video conferencing, or in other important data service, for user provides highly reliable, high performance light signal to protect transmission channel.The business supported comprises: gigabit main line active-standby system, SDH/PDH/FC/POS Optical Channel Protection system, visual line-monitoring system etc.Adopt 3R to detect control unit and realize ultrahigh speed switching, speed-sensitive switch routing is carried out for important two ways of optical signals circuit, and 3R amplification is carried out to the light signal after routing product and routing, within the time of Microsecond grade, complete TURP change, be much better than the 50ms of mechanical optical switch switching time.
During concrete networking is implemented, if need multy-way switching, the system configuration of blocking can be adopted, make the one the second photoelectric conversion units, electrooptic switching element, 3R detect control unit, monitoring of tools unit and power subsystem and monitoring host computer forms an organic whole.Between two light end equipment at two ends, insert two active and standby path control deivces of optical cable, between the active and standby path control deivce of optical cable, access a pair protection reserve cable, namely can be implemented between primary optical cable and reserve cable and carry out harmless automatic instantaneous switching.And can every state of remote real-time monitoring equipment, the conscientiously stable operation of protection electric power communication device.
Claims (3)
1. the active and standby path control deivce of optical cable, comprises that the first light turns electric unit, the second optical conversion element, monitoring of tools unit, electricity turn light unit and power subsystem, it is characterized in that, also comprises 3R and detect control unit;
Described first light turns electric unit and receives primary optical fiber cables signal that primary optical cable sends and be converted to the primary signal of telecommunication and send to described 3R to detect control unit, sends light simultaneously and turns electric master state signal to described monitoring of tools unit;
Described second light turns electric unit and receives the reserve cable light signal that sends of reserve cable and be converted to standby electricity signal and send to described 3R to detect control unit, sends light simultaneously and turns electric stand-by state signal to described monitoring of tools unit;
Described monitoring of tools unit is made up of webmaster plate, wireless transport module, CPLD and MPU, and described MPU receives that described light turns electric master state signal, light turns electric stand-by state signal and carries out processing rear acquisition switch-over control signal and send to described 3R to detect control unit by described CPLD;
Described 3R detects control unit and receives the described primary signal of telecommunication, standby electricity signal and switch-over control signal, and selects the described primary signal of telecommunication and the standby electricity signal Zhong mono-road signal of telecommunication to send to described electricity to turn light unit as the signal of telecommunication needed for optical fiber cable termination equipment according to described switch-over control signal;
Described 3R detects control unit and is made up of switch unit and three 3R amplifying units, described switch unit is by comparator, microprocessor and electronic switch composition, the switch-over control signal that microprocessor is sent according to described CPLD by comparator carries out Quality estimation to through the primary signal of telecommunication of 3R amplifying unit process and standby electricity signal and compares, if the primary signal of telecommunication and standby electricity signal all exist, then by comparator to select in the primary signal of telecommunication and standby electricity signal current value comparatively the great mono-road signal of telecommunication transmit through 3R amplifying unit to electronic switch as electrical signal transfer needed for optical fiber cable termination equipment,
Described 3R amplifying unit is used for when resetting the signal of telecommunication, heavily regenerate and weigh Shape correction;
Described electricity turns light unit and receives described 3R and detect the electrical signal transfer that sends of control unit to the receipts light end of described optical fiber cable termination equipment; Electricity is turned light state signal simultaneously and send to described monitoring of tools unit;
Received electricity is turned light signal state by the MPU of described monitoring of tools unit, light turns the electric primary signal of telecommunication and light turn electric stand-by state signal transmission give described webmaster plate carry out changing and send to described monitoring host computer to show through described wireless transport module, wireless mesh network;
Described power subsystem be used for for described first light turn electric unit, the second light turns electric unit, 3R detects control unit, monitoring of tools unit and electricity and turns light unit and provide system power supply.
2. the active and standby path control deivce of a kind of optical cable according to claim 1, is characterized in that, electronic switch is made up of two triode gate circuit, and the control electrode of electronic switch is exported by Microprocessor S3C44B0X 0 or 1 to control break-make.
3. the active and standby path control deivce of a kind of optical cable according to claim 1 and 2, is characterized in that, described wireless mesh network is interconnected by multiple wireless exchange board and forms.
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| CN201510604314.7A CN105119652A (en) | 2015-09-21 | 2015-09-21 | Optical cable main/standby routing controller |
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| CN201510604314.7A CN105119652A (en) | 2015-09-21 | 2015-09-21 | Optical cable main/standby routing controller |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106374997A (en) * | 2016-08-26 | 2017-02-01 | 上海电信工程有限公司 | System and method for maintaining uninterrupted optical cable signal |
| CN110224849A (en) * | 2019-04-18 | 2019-09-10 | 广州市高科通信技术股份有限公司 | A kind of method preventing PTN device loss of data, system and storage medium |
| CN114648862A (en) * | 2021-12-20 | 2022-06-21 | 中国联合网络通信集团有限公司 | Overhead optical cable early warning processing method, device, equipment and storage medium |
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Application publication date: 20151202 |