CN105162514A - Optical fiber ring network communication system and method - Google Patents
Optical fiber ring network communication system and method Download PDFInfo
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- CN105162514A CN105162514A CN201510615802.8A CN201510615802A CN105162514A CN 105162514 A CN105162514 A CN 105162514A CN 201510615802 A CN201510615802 A CN 201510615802A CN 105162514 A CN105162514 A CN 105162514A
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Abstract
The invention discloses an optical fiber ring network communication system and method. The system comprises network management equipment and a plurality of node equipment. The network management equipment and the plurality of node equipment are sequentially connected so as to jointly form a closed annular topological structure. Each node equipment is provided with a light shunt device and a light switch device. The light shunt device is used for dividing a received light signal into two same paths of light signal. One path of the light signal is directly input into the light switch device, and the other path of light signal is input into the node equipment. The light switch device is connected with the next node equipment and is used for inputting one path of light signal into next node equipment when the node equipment fails. Through adoption of the system, the reliability of the optical fiber ring network is greatly enhanced, so that the reliability of system running is improved.
Description
Technical field
The present invention relates to fiber optic communication field, particularly a kind of optical fiber ring network communication system and method.
Background technology
Loop network topology structure (RingNetworkTopology) is the enclosed shape topological structure not needing terminator.Each node device in network configuration connects in hand-in-hand mode, is connected on network management device always, the ring topology that common formation one is closed.When there being any two equipment to break down in this ring network structure, all fault-free devices communicatings between these two faulty equipments will being caused to break down, cause data transmission fails.
Therefore, be necessary to provide a kind of technical scheme, to solve when any two node devices in optical fiber ring network topological structure break down, the problem of the data energy proper communication of all fault-free equipment between two node failure equipment.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency existing in prior art, a kind of optical fiber ring network communication system and method are provided, be intended to solve when any two node devices in optical fiber ring network topological structure break down, the problem of the data energy proper communication of all fault-free equipment between two node failure equipment.
In order to solve the problems of the technologies described above, first, the invention provides a kind of optical fiber ring network communicating node device, comprise photoelectric conversion module, data processing and control module and electrooptic conversion module; It is characterized in that, also comprise optical branch device and optical switch device; Described optical switch device is provided with port A and access interface B; Described optical branch device, for the light signal received is divided into identical two ways of optical signals, wherein a road light signal directly inputs the port A of described optical switch device; Another road light signal inputs described photoelectric conversion module, is exported to the port B of described optical switch device after data processing and control module process again by electrooptic conversion module.
Further, described optical branch device is the passive Light splitter toy of 1:2.
Further, described optical switch device is active optical switch.
Further, port-for-port A is connected in described optical switch device power-off, and port-for-port B is connected in energising.
Secondly, the invention provides a kind of optical fiber ring network communication system, it is characterized in that, comprise network management device and multiple node device, network management device and multiple node device are in turn connected to form a closed ring topology; Described network management device one end is connected with the optical branch device input of a node device, and the other end is connected with the optical switch device port of a node device; The optical switch device port of previous node equipment is connected with the optical branch device input of a rear node device.
Again, the invention provides a kind of optical fiber ring network communication means, it is characterized in that: the method comprises the steps:
S1: network management device one end is connected with the optical branch device input of a node device, the other end is connected with the optical switch device port of a node device; The optical switch device port of previous node equipment is connected with the optical branch device input of a rear node device;
The light signal received is divided into identical two ways of optical signals by the described optical branch device of S2, each node device, wherein a road light signal directly inputs the port A of described optical switch device, another road light signal inputs described photoelectric conversion module, is exported to the port B of described optical switch device after data processing and control module process again by electrooptic conversion module;
S3, when node device normally works, the switch pole of optical switching device at port B, now port A end be in nonconducting state, the road light signal exported from described optical branch device is transferred to next energy-saving device by the port B of optical switching device;
S4, when node device breaks down, the switch pole of optical switching device is in port A, and the road light signal exported from described optical branch device is transferred to next node equipment from port A end.
Further, described optical branch device is the passive Light splitter toy of 1:2.
Further, described optical switch device is active optical switch.
Compared with prior art, beneficial effect of the present invention:
Optical branch device and optical switch device is increased in each node device structure of the present invention in original optical fiber ring network system, the light signal that node device receives by described optical branch device is divided into identical two ways of optical signals, wherein a road light signal directly inputs described optical switch device, in another road light signal input node equipment, described optical switch device and next node equipment connection, for being input to next node equipment by a described road light signal when described node device fault.The invention enables node device fault optical signal still can import next node equipment into, thus ensure that Signal transmissions can be gone out by any trouble-free node device, greatly strengthen the reliability of optical fiber ring network topological structure communication.
Accompanying drawing illustrates:
Fig. 1 is optical fiber ring network communication system schematic diagram of the present invention;
Fig. 2 is the optical fiber ring network communication system schematic diagram in one embodiment of the invention;
Fig. 3 is node device when normally working, optical signal transmission structural representation;
When Fig. 4 is node device fault, optical signal transmission structural representation.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail.But this should be interpreted as that the scope of the above-mentioned theme of the present invention is only limitted to following embodiment, all technology realized based on content of the present invention all belong to scope of the present invention.
The invention provides a kind of optical fiber ring network communication system, described optical fiber ring network is connected successively by network management device and multiple node device and jointly forms a closed ring topology, and each described node device is equipped with optical branch device and optical switch device; Wherein, described optical branch device, for the light signal received is divided into identical two ways of optical signals, wherein a road light signal directly inputs described optical switch device, and another road light signal inputs in described node device; Described optical switch device, with next node equipment connection, for being input to next node equipment by a described road light signal when described node device fault.
Optical branch device and optical switch device is increased in each node device structure of present system in original optical fiber ring network system, the light signal that node device receives by described optical branch device is divided into identical two ways of optical signals, wherein a road light signal directly inputs described optical switch device, in another road light signal input node equipment, described optical switch device and next node equipment connection, for being input to next node equipment by a described road light signal when described node device fault.The invention enables node device fault optical signal still can import next node equipment into, thus ensure that Signal transmissions can be gone out by any trouble-free node device, greatly strengthen the reliability of optical fiber ring network topological structure communication.
Below in conjunction with specific embodiment, the present invention is described.Concrete, referring to Fig. 1-2, described optical fiber ring network is connected successively by network management device and multiple node device (1-N) and jointly forms a closed ring topology, in the present embodiment, each described node device (1,2,3,4,5) is equipped with optical branch device and optical switch device.For convenience of description, in Fig. 2, only a node device 5 illustrates optical branch device 501 and optical switch device 502, and this is not used in restriction the present invention.Wherein, described optical branch device 501, for the light signal from previous node equipment 3 received is divided into identical two ways of optical signals, wherein a road light signal directly inputs described optical switch device 502, and another road light signal inputs in described node device 5; Described optical switch device 502, is connected with next node equipment 4, for a described road light signal being input to next node equipment 4 when described node device 5 fault.Optical branch device 501 described in the present embodiment is the passive Light splitter toy of 1:2.Described optical switch device 502 is active optical switch, described active optical switch has two light signal access interface (A, B), the default setting switch pole of optical switch is held at A, A end interface is used for accessing the described road light signal that described optical branch device directly exports, and the B end of optical switch connects the light signal that electrooptic conversion module exports.
When node device normally works, held at B by the switch pole of control line by optical switch, now A end is in nonconducting state, and the described road light signal exported from described optical branch device can not from the input of A end;
When node device breaks down, cannot be controlled the switch pole of optical switch by control line, optical switch switch pole is now in A end, and the described road light signal exported from described optical branch device is transferred to next node equipment after the input of A end.
Whether the passive Light splitter toy in the present invention and active optical switch have other alternative schemes to realize same technical functionality, whether must be necessarily that passive Light splitter toy or active optical switch could realize goal of the invention? if other devices or element can realize, please provide as far as possible.
Each described node device has photoelectric conversion module, and another road light signal described that described optical branch device exports inputs described photoelectric conversion module in described node device to carry out data processing in equipment; The described road light signal that described optical branch device exports by described optical switch device is input to described photoelectric conversion module in next node equipment to carry out data processing in equipment.
The embodiment of the present invention increases passive Light splitter toy and active optical switch in original node device structure, light signal is by Light splitter toy access arrangement, and the light signal of access can be divided into two-way by Light splitter toy, and a road directly connects optical switch, another road access optical-electrical converter, carries out the data processing in equipment.Optical switch has two gears A, B two light signal incoming ends as shown in Figure 4, the default setting of optical switch (is exactly do not have driven by power when optical switch, namely during non operating state) switch pole holds at A, A end interface is used for accessing the light signal that directly exports of optical splitter, and the B end of optical switch connects the light signal that electrooptic conversion module exports.
As shown in Figure 3, when node device normally works, held at B by the switch pole of control line by optical switch, now A end is in nonconducting state, and the light signal exported from optical splitter can not from the input of A end; As shown in Figure 4 when node device breaks down, the switch pole of optical switch cannot be controlled by control line, optical switch switch pole is now in A end, just can be transferred to next node equipment after the input of A end from the light signal of optical splitter output, thus ensure that Signal transmissions can be gone out by any trouble-free node device, greatly strengthen the communication reliability of optical fiber ring network topological structure.Adopt technical solution of the present invention, greatly can strengthen the reliability of optical fiber ring network, thus increase the reliability running of system.
Optical branch device and optical switch device is increased in each node device structure of the present invention in original optical fiber ring network system, the light signal that node device receives by described optical branch device is divided into identical two ways of optical signals, wherein a road light signal directly inputs described optical switch device, in another road light signal input node equipment, described optical switch device and next node equipment connection, for being input to next node equipment by a described road light signal when described node device fault.The invention enables node device fault optical signal still can import next node equipment into, thus ensure that Signal transmissions can be gone out by any trouble-free node device, greatly strengthen the reliability of optical fiber ring network topological structure communication.
A kind of optical fiber ring network communication means, is characterized in that: the method comprises the steps:
S1: network management device one end is connected with the optical branch device input of a node device, the other end is connected with the optical switch device port of a node device; The optical switch device port of previous node equipment is connected with the optical branch device input of a rear node device;
The light signal received is divided into identical two ways of optical signals by the described optical branch device of S2, each node device, wherein a road light signal directly inputs the port A of described optical switch device, another road light signal inputs described photoelectric conversion module, is exported to the port B of described optical switch device after data processing and control module process again by electrooptic conversion module;
S3, when node device normally works, the switch pole of optical switching device at port B, now port A end be in nonconducting state, the road light signal exported from described optical branch device is transferred to next energy-saving device by the port B of optical switching device;
S4, when node device breaks down, the switch pole of optical switching device is in port A, and the road light signal exported from described optical branch device is transferred to next node equipment from port A end.
Optical branch device and optical switch device is increased in present system and the method each node device structure in original optical fiber ring network system, the light signal that node device receives by described optical branch device is divided into identical two ways of optical signals, wherein a road light signal directly inputs described optical switch device, in another road light signal input node equipment, described optical switch device and next node equipment connection, for being input to next node equipment by a described road light signal when described node device fault.The invention enables node device fault optical signal still can import next node equipment into, thus ensure that Signal transmissions can be gone out by any trouble-free node device, greatly strengthen the reliability of optical fiber ring network topological structure communication.
By reference to the accompanying drawings the specific embodiment of the present invention is described in detail above, but the present invention is not restricted to above-mentioned execution mode, in the spirit and scope situation of claim not departing from the application, those skilled in the art can make various amendment or remodeling.
Claims (8)
1. an optical fiber ring network communicating node device, comprises photoelectric conversion module, data processing and control module and electrooptic conversion module; It is characterized in that, also comprise optical branch device and optical switch device; Described optical switch device is provided with port A and access interface B; Described optical branch device, for the light signal received is divided into identical two ways of optical signals, wherein a road light signal directly inputs the port A of described optical switch device; Another road light signal inputs described photoelectric conversion module, is exported to the port B of described optical switch device after data processing and control module process again by electrooptic conversion module.
2. node device according to claim 1, is characterized in that, described optical branch device is the passive Light splitter toy of 1:2.
3. node device according to claim 1, is characterized in that, described optical switch device is active optical switch.
4. optical fiber ring network communicating node device according to claim 1, is characterized in that, port-for-port A is connected in described optical switch device power-off, and port-for-port B is connected in energising.
5. an optical fiber ring network communication system, is characterized in that, comprises network management device and multiple node device, and network management device and multiple node device are in turn connected to form a closed ring topology; Described network management device one end is connected with the optical branch device input of a node device, and the other end is connected with the optical switch device port of a node device; The optical switch device port of previous node equipment is connected with the optical branch device input of a rear node device.
6. an optical fiber ring network communication means, is characterized in that: the method comprises the steps:
S1: network management device one end is connected with the optical branch device input of a node device, the other end is connected with the optical switch device port of a node device; The optical switch device port of previous node equipment is connected with the optical branch device input of a rear node device;
The light signal received is divided into identical two ways of optical signals by the described optical branch device of S2, each node device, wherein a road light signal directly inputs the port A of described optical switch device, another road light signal inputs described photoelectric conversion module, is exported to the port B of described optical switch device after data processing and control module process again by electrooptic conversion module; S3, when node device normally works, the switch pole of optical switching device at port B, now port A end be in nonconducting state, the road light signal exported from described optical branch device is transferred to next energy-saving device by the port B of optical switching device;
S4, when node device breaks down, the switch pole of optical switching device is in port A, and the road light signal exported from described optical branch device is transferred to next node equipment from port A end.
7. optical fiber ring network communication means according to claim 6, is characterized in that, described optical branch device is the passive Light splitter toy of 1:2.
8. optical fiber ring network communication means according to claim 6, is characterized in that, described optical switch device is active optical switch.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107302484A (en) * | 2017-06-12 | 2017-10-27 | 深圳市诺龙技术股份有限公司 | A kind of method and apparatus of looped network self-healing |
| CN107508631A (en) * | 2017-06-29 | 2017-12-22 | 北京广利核系统工程有限公司 | Communication by-pass collar, communication looped network and network communication method |
| CN112260760A (en) * | 2020-10-19 | 2021-01-22 | 中国核动力研究设计院 | Nuclear power plant distributed control system field bus system based on optical loop |
| CN112449148A (en) * | 2019-08-30 | 2021-03-05 | 杭州海康威视数字技术股份有限公司 | Camera, camera system and data transmission system |
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| CN205005051U (en) * | 2015-09-24 | 2016-01-27 | 中国民用航空总局第二研究所 | Optic fibre looped netowrk communication node equipment and system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107302484A (en) * | 2017-06-12 | 2017-10-27 | 深圳市诺龙技术股份有限公司 | A kind of method and apparatus of looped network self-healing |
| CN107508631A (en) * | 2017-06-29 | 2017-12-22 | 北京广利核系统工程有限公司 | Communication by-pass collar, communication looped network and network communication method |
| CN112449148A (en) * | 2019-08-30 | 2021-03-05 | 杭州海康威视数字技术股份有限公司 | Camera, camera system and data transmission system |
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| CN112260760A (en) * | 2020-10-19 | 2021-01-22 | 中国核动力研究设计院 | Nuclear power plant distributed control system field bus system based on optical loop |
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