CN2703365Y - Optical fibre line protecting apparatus - Google Patents
Optical fibre line protecting apparatus Download PDFInfo
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- CN2703365Y CN2703365Y CNU2003201311984U CN200320131198U CN2703365Y CN 2703365 Y CN2703365 Y CN 2703365Y CN U2003201311984 U CNU2003201311984 U CN U2003201311984U CN 200320131198 U CN200320131198 U CN 200320131198U CN 2703365 Y CN2703365 Y CN 2703365Y
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- path handover
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Abstract
The utility model provides an optical fiber line protecting apparatus, comprising a light path switching module, a system monitoring module and a switching control module. When the data communication equipment has some problems in the system running, the system monitoring module can send the command of cutting off the data communication equipment from the optical fiber net to the switching control module; then the switching control module sends the switching signal to the light switching module so the switching module of controlling the light line can make the data communication equipment cut off from the optical fiber net. When the data communication equipment recovers to normal work, the system monitoring module can send the command of connecting the data communication equipment to the optical fiber net to the switching control module; then the switching control module sends the switching signal to the light switching module so the switching module of controlling the light line can make the data communication equipment connect to the optical fiber net. The utility model changes the method of directly connecting the data communication equipment to the optical fiber line in fiber net and carries out effective buffer between the optical fiber line and the data communication equipment so the utility model avoids the influence on optical fiber line for the problems of equipment.
Description
Technical field
The utility model relates to the data communication field, relates in particular to a kind of device that realization is protected the fiber optic network circuit in data communications equipment (as router, Ethernet switch).
Background technology
The data communication network that adopts fiber medium to constitute generally has annular, star, topological structure such as netted.The feature of ring network is to constitute ring-type by serial connection in twos between the equipment, therefore expands more conveniently, also can connect remote equipment, the network that constituent ratio is relatively large.The greatest problem of ring network structure is that all nodes can't proper communication in can causing encircling when a node goes wrong.Stellate reticulum and mesh network structure do not have this shortcoming, but because its topological structure more complicated, the communication network that only is suitable between the near field communication devices constitutes.
In order to overcome the Single Point of Faliure problem of ring network, general solution is two loops of design, a conduct work loop, and another is as the protection loop.When the equipment on the network all during operate as normal, data flow in the work loop; When in the network during a certain equipment fault, adjacent with it equipment utilization protection switch function, will work loop and protection loop couple together, and constitute a new loop, and realization is to the shielding of fault point.As just adopt APS (APS) technology to realize protection adopting in the network of SDH technology to looped network.
There is following shortcoming in this method: the first, and this method is not suitable for the data communication network that has only disposed monocycle; The second, even a network that adopts twin nuclei, if there are two above equipment to break down simultaneously, then new loop also can't be set up, and whole looped network is still destroyed; The 3rd, when the equipment in the network breaks down (as outage), the protect networks switching action to wait until its neighbouring device detect the corresponding error signal after a period of time just can take place, switching time is long, reacts rapid inadequately.Relevant prior art comprises: application number is 02107389.9 Chinese patent literature; the patent No. is 5; 777; 761 american documentation literature; wherein above-mentioned Chinese patent literature realizes must be based on the network of two optical fiber formations to the protection of loop network; and above-mentioned american documentation literature mainly is the switching at the fault of fibre circuit own; when an optical-fiber line fault, switch to another fibre circuit; and during the data communications equipment fault on being connected to circuit, can not protect switching to fibre circuit.
The utility model content
The purpose of this utility model is in order to solve the shortcoming of existing Networks of Fiber Communications route protection scheme, a kind of device that can fast and effeciently realize the fibre circuit protection in physical layer to be provided.
In order to achieve the above object, the utility model by the following technical solutions, a kind of optical line protection device comprises:
The light path handover module is used for disconnecting with data communications equipment incoming fiber optic net or from optical networking;
The system monitoring module is used for the working state of system of monitor data communication equipment, and determines the mode of operation of light path handover module according to the operating state of data communications equipment system;
The switching controls module is used for according to the system monitoring module instruction, sends switching command to the light path handover module, the action of control light path handover module; Wherein
The light path handover module is electrically connected with system monitoring module and switching controls module, and system monitoring module and switching controls module are electrically connected; Described system monitoring module controls the mode of operation of whole optical line protection device, when system's operation of data communications equipment is broken down or is cut off the power supply, the system monitoring module is sent the instruction that this data communications equipment is broken from optical networking to the switching controls module, the switching controls module is sent switching signal according to instruction to the light path handover module, and control light path handover module disconnects data communications equipment from optical networking; When data communications equipment is recovered operate as normal, the system monitoring module is sent instruction with this data communications equipment incoming fiber optic net to the switching controls module, the switching controls module is sent switching signal according to instruction to the light path handover module, and control light path handover module is with this data communications equipment incoming fiber optic net.
The optical line protection device that the utility model provides; changed the way of the direct incoming fiber optic circuit of data communications equipment in the existing fiber net; between fibre circuit and data communications equipment, carry out effective isolation, thereby avoided equipment fault that fibre circuit is exerted an influence.
Below in conjunction with embodiment and with reference to accompanying drawing the technical solution of the utility model is elaborated.
Description of drawings
Fig. 1 is the position view of an embodiment in optical networking that the utility model provides.
Fig. 2 is the structural representation of an embodiment providing of the utility model.
Fig. 3 is the structural representation of light path handover module among the embodiment providing of the utility model.
Fig. 4 is the work schematic diagram of an embodiment providing of the utility model.
Embodiment
As shown in Figure 1, be the position view of the utility model line protective devices 101 in optical networking.In the optical networking, data communications equipment 103 connects upstream equipment (not label) and upstream device (not label) by fibre circuit.Line protective devices 101 can be arranged on the data communications equipment 103 physically, on the signal transmitting and receiving direction between the system interface 102 of fibre circuit and data communications equipment 103.When data communications equipment 103 operate as normal, the signal in the fibre circuit enters system interface 102 by line protective devices 101, and line protective devices 101 are sightless for the system of data communications equipment 103.When data communications equipment 103 broke down or cuts off the power supply, fibre circuit was realized straight-through in line protective devices 101, and signal no longer enters into the system interface 102 of data communications equipment 103, thereby directly faulty equipment 103 is peeled off from optical networking.
As shown in Figure 2, be the structural representation of the utility model optical line protection device 101, line protective devices 101 comprise light path handover module 201, switching controls module 202, system monitoring module 203 and outage monitoring module 204.Wherein, light path handover module 201 is connected to the upstream and downstream equipment of data communications equipment 103 by fiber optic network side interface (not label), is connected to data communications equipment 103 by data communications equipment 103 system-side interface (being the system interface 102 among Fig. 1).Light path handover module 201 also is electrically connected with the switching controls module 202 and the system monitoring module 203 of line protective devices 101; reception is from the instruction of switching controls module 202, and with the signal of fiber optic network side interface through to the upstream and downstream data communications equipment or be linked into the system-side interface of data communications equipment 103.Switching controls module 202 is made up of logic control circuit, be electrically connected with light path handover module 201 and system monitoring module 203, be used for the instruction of receiving system monitoring module 203, thereby send the action of switching signal control light path handover module 201 to light path handover module 201.System monitoring module 203; with light path handover module 201; switching controls module 202; outage monitoring module 204 is electrically connected; and be electrically connected with the internal system control unit of data communications equipment 103, realize to the monitoring of data communication equipment 103 working state of system with to the management of line protective devices 101 each module.System monitoring module 203 is control cores of line protective devices 101, all control commands of light path handover module 201 is all sent by it, and can be reported the operating state of line protective devices 101 to the system of data communications equipment 103.In the present embodiment; also be provided with outage monitoring module 204 in the line protective devices 101, realize monitoring, when the system cut-off of data communications equipment 103 system power supply of data communication equipment 103; the system monitoring module 203 of announcement trunk protective device 101 switches to fibre circuit straight-through.
As shown in Figure 3, light path handover module 201 is made of four light switch units 301, and each light switch unit 301 all comprises 1, two output port of an input port 2,3 (first output port 3 and second output port 2).These four light switch units 301 are connected in series in twos, receive respectively to receive and send in two fibre circuits.When data communications equipment 103 operate as normal, all light switch units 301 are set to input port 1 and first output port 3 is connected, at this moment data communications equipment 103 is access in fiber optic network, the system interface 302 of data communications equipment 103 (being the system interface 102 among Fig. 1) is connected with upstream device with the upstream equipment of optical networking respectively, makes fibre circuit form the incision state.When data communications equipment 103 breaks down, during cisco unity malfunction, under the effect of the control command that system monitoring module 203 is sent out, all light switch units 301 change connected state, promptly change input port 1 and 2 connections of second output port into, make fibre circuit form pass-through state, directly be communicated with the upstream and downstream equipment of data communications equipment 103.
As shown in Figure 4, system monitoring module 203 realizes that by the monitoring to data communication equipment 103 working state of system fibre circuit is in pass-through state with through the conversion between data communications equipment 103 connected states (incision state) two states.When data communications equipment 103 system operate as normal; the system monitoring module 203 of line protective devices 101 is sent the incision instruction to switching controls module 202; make reception and transmission fibre circuit be in incision state 401 by light path handover module 201, and data communication equipment 103 working state of system are carried out continual monitoring in 401 times maintenances of incision state.When data communications equipment 103 systems break down or cut off the power supply, system monitoring module 203 is sent straight-through instruction to switching controls module 202 at once, make reception and transmission fibre circuit be in pass-through state 402 by light path handover module 201, and remaining on pass-through state 402, wait data communications equipment 103 systems activate or power on.
Specific implementation of the present utility model can be a veneer in the data communications equipment.Wherein, the light path handover module, the switching controls module, system monitoring module and outage monitoring module be respectively by 1 * 2 optical switch, Drive and Control Circuit, CPLD (programmable logic device) and energy storage device formation.In this specific implementation, CPLD (system monitoring module) can monitor the working state of system of data communication equipment by the house dog logical circuit: if system keeps operate as normal, counter in then can periodic refreshing CPLD, make the house dog logic not produce action, when system breaks down, can not in time finish refreshing then of counter among the CPLD, impel the house dog logic to move, Drive and Control Circuit (switching controls module) to optical switch (light path handover module) is sent driving pulse, makes optical switch change on off state.When the data communications equipment system cut-off, energy storage device (outage monitoring module) can provide of short duration electric energy to optical switch control circuit and CPLD, CPLD is monitored have no progeny in the system power supply to send driving pulse, and the control optical switch changes state.
Electrical connection between each module of the utility model line protective devices; also variable more wireless coupling, blue bud connection waits other signal interactive modes, and this part is not the utility model emphasis; and the common skill personage of industry changes easy full of beard to this type of and reaches, and does not repeat them here.
The above only is a kind of execution mode of the present utility model, and its applied environment also is not limited only to the data communications equipment in the loop network, therefore should not be considered to be the restriction to the utility model scope.The claimed scope of the utility model should be as the criterion with claim, all personages who is familiar with this field skill, according to the disclosed technology contents of the utility model, can think easily and equivalence change, all should fall into protection range of the present utility model.
Claims (6)
1. an optical line protection device is located on the data communications equipment between the equipment of optical networking upstream and downstream, is used to protect the operation of fiber optic network circuit unimpeded, it is characterized in that this optical line protection device comprises:
The light path handover module is used for disconnecting with data communications equipment incoming fiber optic net or from optical networking;
The system monitoring module is used for the working state of system of monitor data communication equipment, and determines the mode of operation of light path handover module according to the operating state of data communications equipment system;
The switching controls module is used for according to the system monitoring module instruction, sends switching command to the light path handover module, the action of control light path handover module; Wherein
The light path handover module is electrically connected with system monitoring module and switching controls module, and system monitoring module and switching controls module are electrically connected; The system monitoring module controls the mode of operation of whole optical line protection device, when system's operation of data communications equipment is broken down or is cut off the power supply, the system monitoring module is sent the instruction that this data communications equipment is broken from optical networking to the switching controls module, the switching controls module is sent switching signal according to instruction to the light path handover module, and control light path handover module disconnects data communications equipment from optical networking; When data communications equipment is recovered operate as normal, the system monitoring module is sent instruction with this data communications equipment incoming fiber optic net to the switching controls module, the switching controls module is sent switching signal according to instruction to the light path handover module, and control light path handover module is with this data communications equipment incoming fiber optic net.
2. optical line protection device as claimed in claim 1; it is characterized in that; the light path handover module of described optical line protection device by the fiber optic network side interface be connected to data communications equipment on; upstream device; and be connected to data communications equipment by the system-side interface of data communications equipment; the light path handover module also is electrically connected with the switching controls module and the system monitoring module of line protective devices; reception is from the instruction of switching controls module, and with the signal of fiber optic network side interface through to last; upstream device or be linked into the system-side interface of data communications equipment.
3. optical line protection device as claimed in claim 2; it is characterized in that; described switching controls module is made up of logic control circuit; be electrically connected with light path handover module and system monitoring module; be used for the instruction of receiving system monitoring module, thereby send the action of switching signal control light path handover module to the light path handover module.
4. optical line protection device as claimed in claim 3; it is characterized in that; described system monitoring module is electrically connected with light path handover module and switching controls module; and be electrically connected with the internal system control unit of data communications equipment; realization is all sent by it all control commands of light path handover module to the monitoring of data facility communication system operating state with to the management of each module of line protective devices.
5. as claim 1 or 4 described optical line protection devices; it is characterized in that; also be provided with the outage monitoring module in the described line protective devices; be electrically connected with the system monitoring module; be used to realize monitoring to the system power supply of data communication equipment; when the system cut-off of data communications equipment, the system monitoring module of outage monitoring module announcement trunk protective device switches to fibre circuit straight-through.
6. optical line protection device as claimed in claim 5, it is characterized in that, described light path handover module is made of some smooth switch units, each light switch unit all comprises an input port (1), two output ports (2,3), these light switch units are divided into two groups, be concatenated into respectively and receive and send in two fibre circuits, when the data communications equipment operate as normal, all light switch units are set to input port (1) and first output port (3) is connected, at this moment data communications equipment is access in optical networking, and the system interface of data communications equipment is connected with upstream device with the upstream equipment of optical networking respectively, makes fibre circuit form the incision state; When data communications equipment breaks down, during cisco unity malfunction, under the effect of the control command that the system monitoring module is sent out, all light switch units change connected state, promptly changing input port (1) and second output port (2) into connects, make fibre circuit form pass-through state, directly be communicated with the upstream and downstream equipment of data communications equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2003201311984U CN2703365Y (en) | 2003-12-05 | 2003-12-05 | Optical fibre line protecting apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2003201311984U CN2703365Y (en) | 2003-12-05 | 2003-12-05 | Optical fibre line protecting apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2703365Y true CN2703365Y (en) | 2005-06-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2003201311984U Expired - Lifetime CN2703365Y (en) | 2003-12-05 | 2003-12-05 | Optical fibre line protecting apparatus |
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| CN (1) | CN2703365Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007030999A1 (en) * | 2005-09-12 | 2007-03-22 | China Mobile Communications Corporation | A optical fiber access network and a communication protection method thereof |
| CN101958751A (en) * | 2010-09-27 | 2011-01-26 | 中兴通讯股份有限公司 | Protection method and device of optical network |
| CN102158256A (en) * | 2010-12-21 | 2011-08-17 | 广汽本田汽车有限公司 | Coaxial cable communication exception handling method for spray room |
| CN103209099A (en) * | 2013-05-03 | 2013-07-17 | 广州市成格信息技术有限公司 | Automatic switching protection method for network communication circuit between nodes |
| CN103873137A (en) * | 2012-12-11 | 2014-06-18 | 中国移动通信集团山东有限公司 | Ring optical transmission network route switching method and device |
| CN104270191A (en) * | 2014-04-14 | 2015-01-07 | 上海大学 | System and method of implementing wavelength multiplexing function and mutual protection function in wavelength division multiplexing convergent access type double fiber ring optical network |
| CN105472325A (en) * | 2015-11-20 | 2016-04-06 | 武汉微创光电股份有限公司 | Method for dual protection during network video monitoring |
-
2003
- 2003-12-05 CN CNU2003201311984U patent/CN2703365Y/en not_active Expired - Lifetime
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8160441B2 (en) | 2005-09-12 | 2012-04-17 | China Mobile Communications Corp. | Optical fiber access network and commuication protection method thereof |
| WO2007030999A1 (en) * | 2005-09-12 | 2007-03-22 | China Mobile Communications Corporation | A optical fiber access network and a communication protection method thereof |
| CN101958751B (en) * | 2010-09-27 | 2015-04-01 | 中兴通讯股份有限公司 | Protection method and device of optical network |
| WO2012041061A1 (en) * | 2010-09-27 | 2012-04-05 | 中兴通讯股份有限公司 | Protection method and apparatus of optical network |
| CN101958751A (en) * | 2010-09-27 | 2011-01-26 | 中兴通讯股份有限公司 | Protection method and device of optical network |
| CN102158256A (en) * | 2010-12-21 | 2011-08-17 | 广汽本田汽车有限公司 | Coaxial cable communication exception handling method for spray room |
| CN102158256B (en) * | 2010-12-21 | 2014-04-09 | 广汽本田汽车有限公司 | Coaxial cable communication exception handling method for spray room |
| CN103873137A (en) * | 2012-12-11 | 2014-06-18 | 中国移动通信集团山东有限公司 | Ring optical transmission network route switching method and device |
| CN103873137B (en) * | 2012-12-11 | 2017-05-03 | 中国移动通信集团山东有限公司 | Ring optical transmission network route switching method and device |
| CN103209099A (en) * | 2013-05-03 | 2013-07-17 | 广州市成格信息技术有限公司 | Automatic switching protection method for network communication circuit between nodes |
| CN103209099B (en) * | 2013-05-03 | 2016-06-29 | 广州市成格信息技术有限公司 | A kind of automatic switching protection method of internodal network communication circuit |
| CN104270191A (en) * | 2014-04-14 | 2015-01-07 | 上海大学 | System and method of implementing wavelength multiplexing function and mutual protection function in wavelength division multiplexing convergent access type double fiber ring optical network |
| CN104270191B (en) * | 2014-04-14 | 2017-02-15 | 上海大学 | System and method of implementing wavelength multiplexing function and mutual protection function in wavelength division multiplexing convergent access type double fiber ring optical network |
| CN105472325A (en) * | 2015-11-20 | 2016-04-06 | 武汉微创光电股份有限公司 | Method for dual protection during network video monitoring |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20131205 Granted publication date: 20050601 |