CN202617301U - Optical switch - Google Patents
Optical switch Download PDFInfo
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- CN202617301U CN202617301U CN201220264337XU CN201220264337U CN202617301U CN 202617301 U CN202617301 U CN 202617301U CN 201220264337X U CN201220264337X U CN 201220264337XU CN 201220264337 U CN201220264337 U CN 201220264337U CN 202617301 U CN202617301 U CN 202617301U
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Abstract
The utility model discloses an optical switch, which comprises an optical path cross linking module, an optical transceiver module, a signal processing module, a power module, and a fault detecting module, wherein the optical path cross linking module, the optical transceiver module, the signal processing module and the power module are connected sequentially; and the fault detecting module is connected with the optical path cross linking module, the optical transceiver module, the signal processing module and the power module respectively. The fault detecting module is used for detecting fault of the optical switch and controlling the optical path cross linking module when the fault of the optical switch occur, and the optical path cross linking module is directly communicated with an uplink optical fiber and a downlink optical fiber so as to directly transmit an optical signal and realize the cross recombination of an optical path, so that when the fault of the optical switch occur, the smooth connection of the optical path is still ensured, transmission of signals and exchange of data in a network are not influenced, and influence on the normal running of the network due to the fault of an optical transceiver is avoided.
Description
Technical field
The utility model relates to field of network connections, is specifically related to a kind of optical switch that carries out information exchange and transfer of data with light signal.
Background technology
Along with the continuous extension of social development and economic life, the scope of information exchange and transfer of data is increasing, and distance is more and more longer.Optical fiber is because its transmission capacity is big, and propagation loss is low fast and more and more universal in information exchange and data transmission network with transmission speed.The laying capacity of optical cable is all strengthening year by year, and is also more and more to the demand of optical switch.Optical switch is the visual plant that connects each optical-fiber network, in case an optical switch breaks down in the network, will influence the communication of whole network, and serious also can cause network paralysis, loses data transmission capabilities, produces heavy losses.And present optical switch does not have fault detect and light path is switched recombination function, when switch self breaks down, will directly cause crashing or mistake, can't accomplish optical signal transmission and exchanges data.
Therefore be necessary to provide a kind of and can carry out fault detect automatically, and when detecting optical switch and break down, can recombinate and the optical switch that makes light path keep clear and connect light path.
The utility model content
The utility model provides a kind of and can carry out fault detect automatically to the problem that existing optical switch exists, and when detecting optical switch and break down, and can recombinate and the optical switch that makes light path keep clear and connect to light path.
The utility model is realized through following technical scheme: a kind of optical switch; Comprise the cross-linked module of light path, optical transceiver module, the signal processing module that connect successively, also comprise power module and the fault detection module that is connected the cross-linked module of light path, optical transceiver module, signal processing module, power module respectively.
The cross-linked module of light path be used to receive the light signal of optical fiber and with optical signal transmission to optical transceiver module, and the light signal that optical transceiver module sends sent in the optical fiber; The cross-linked module of light path also is used for when optical switch breaks down, and receives the order of fault detection module, directly the light signal that receives is forwarded.
Optical transceiver module is used for the light signal of the cross-linked module of receiving light path transmission, and converts light signal into the signal of telecommunication and be sent to signal processing module; Receive the signal of telecommunication that signal processing module transmits, and be to be sent to the cross-linked module of light path behind the light signal electrical signal conversion.
Signal processing module is used for the signal that receives is handled, and the signal that needs send is handled.
Power module is used to switch stable working power is provided.
Fault detection module is used to detect the operating state of optical transceiver module, signal processing module, power module; And in optical transceiver module, signal processing module and power module two break down with upper module simultaneously; Or one of them is when breaking down, and control light path cross link module directly forwards the light signal that receives.
A kind of optical switch of the utility model; Through the input and output light signal that the cross-linked module of light path receives uplink optical fibers and downlink optical fiber is set before optical transceiver module; And when the optical switch operate as normal, light signal is sent to optical transceiver module; By optical transceiver module light signal is converted into and to be sent to signal processing module behind the signal of telecommunication and to handle; Electrical signal conversion after optical transceiver module is handled signal processing module again is a light signal, is sent to the cross-linked module of light path, is sent to other optical switchs by the cross-linked module of light path through uplink optical fibers and downlink optical fiber.And when fault detection module detects the back in real time and finds that optical switch breaks down optical transceiver module, signal processing module and power module; Fault detection module will be sent and control signal to light path cross link module; Control light path cross link module directly is communicated with uplink optical fibers and downlink optical fiber, so that directly transmit light signal, to realize the intersection reorganization of light path; Thereby can remain on optical switch when breaking down; Still guaranteed the unobstructed connection of light path, and do not influenced the transmission of signal in the network and the exchange of data, thereby avoided influencing the normal operation of network owing to the optical transceiver fault.
Description of drawings
Fig. 1 is the structural representation of a kind of optical switch of the utility model;
Fig. 2 is that the cross-linked module of light path is connected sketch map with the optical transceiver module light path;
Fig. 3 is when switch breaks down, and light path connects sketch map in the cross-linked module of light path;
Fig. 4 is a kind of optical switch control flow chart of the utility model;
Fig. 5 is the circuit module structural representation.
Embodiment
A kind of optical switch of the utility model; Through the input and output light signal that the cross-linked module of light path receives uplink optical fibers and downlink optical fiber is set before optical transceiver module; And when the optical switch operate as normal, light signal is sent to optical transceiver module; By optical transceiver module light signal is converted into and to be sent to signal processing module behind the signal of telecommunication and to handle; Electrical signal conversion after optical transceiver module is handled signal processing module again is a light signal, is sent to the cross-linked module of light path, is sent to other optical switchs by the cross-linked module of light path through uplink optical fibers and downlink optical fiber.And when fault detection module detects the back in real time and finds that optical switch breaks down optical transceiver module, signal processing module and power module; Fault detection module will be sent and control signal to light path cross link module; Control light path cross link module directly is communicated with uplink optical fibers and downlink optical fiber, so that directly transmit light signal, to realize the intersection reorganization of light path; Thereby can remain on optical switch when breaking down; Still guaranteed the unobstructed connection of light path, and do not influenced the transmission of signal in the network and the exchange of data, thereby avoided influencing the normal operation of network owing to the optical transceiver fault.
Below in conjunction with accompanying drawing the utility model is described in detail, seen also Fig. 1 to Fig. 5.
As shown in Figure 1, a kind of optical switch of the utility model comprises the cross-linked module of light path, optical transceiver module, signal processing module, fault detection module and power module.The cross-linked module of light path, optical transceiver module, signal processing module connect successively, and fault detection module connects the cross-linked module of light path, optical transceiver module, signal processing module, power module respectively.
Power module is used to switch stable working power is provided.
The cross-linked module of light path receive the light signal of optical fiber and with optical signal transmission to optical transceiver module, and the light signal that optical transceiver module sends sent in the optical fiber.When optical switch broke down, the cross-linked module of light path received the order of fault detection module, directly the light signal that receives is forwarded.
The light signal of the cross-linked module of optical transceiver module receiving light path transmission, and convert light signal into the signal of telecommunication and be sent to signal processing module; Receive the signal of telecommunication that signal processing module transmits, and be to be sent to the cross-linked module of light path behind the light signal electrical signal conversion.Optical transceiver module adopts the photoelectricity electro-optical conversion circuit to realize.Comprise Optical Transmit Unit and light receiving unit.For Optical Transmit Unit, design laser signal drive circuit is a light signal with electrical signal conversion.Drive circuit receives input electrical signal, amplifies and the enhancing driving force through signal, and is luminous with big current forms drive laser, is light signal with electrical signal conversion.For light receiving unit, the design optical receiving circuit converts light signal into the signal of telecommunication.Adopt photo-detector that input optical signal is detected, convert faint optical signal into faint current signal, re-use transimpedance amplifier and further amplify through photosensitive tube, through shaping, the signal of telecommunication that output waveform is good.
Signal processing module is handled the signal that receives, and the signal that needs send is handled, and comprises digital coding, decoding, code conversion, data framing, packing data etc.
Fault detection module is used to detect the operating state of optical transceiver module, signal processing module, power circuit module; And the arbitrary module in optical transceiver module, signal processing module and power module breaks down; Perhaps two when breaking down simultaneously with upper module, control light path cross link module directly forwards the light signal that receives.
In the preferred version of a kind of optical switch of the utility model, as shown in Figure 2, the cross-linked module of light path is used for the input and output light path is dynamically switched and the optical fiber link reorganization, is in the state of effective operation all the time to ensure optical transport network.The cross-linked module of light path has 8 optical interfaces, is respectively up smooth input interface, up smooth output interface, descending smooth input interface, descending smooth output interface, the up smooth input interface of optical transceiver module, the up smooth output interface of optical transceiver module, the descending smooth input interface of optical transceiver module, the descending smooth output interface of optical transceiver module.
Said up smooth input interface, up smooth output interface connect uplink optical fibers respectively; Descending smooth input interface, descending smooth output interface connect downlink optical fiber respectively; The up smooth input interface of said optical transceiver module connects the up smooth input interface of optical transceiver module; The up smooth output interface of optical transceiver module connects the up smooth output interface of optical transceiver module; The descending smooth input interface of optical transceiver module connects the descending smooth input interface of optical transceiver module, and the descending smooth output interface of optical transceiver module connects the descending smooth output interface of optical transceiver module.
Optical transceiver module is used between the signal of telecommunication of light signal on the light path and optical switch inside, changing.Optical transceiver module also is divided into up smooth input interface, up smooth output interface, descending smooth input interface, descending smooth output interface to 4 optical interfaces should be arranged.Connect the up smooth input interface of optical transceiver module, the up smooth output interface of optical transceiver module, the descending smooth input interface of optical transceiver module, the descending smooth output interface of optical transceiver module on the cross-linked module of light path respectively.During operate as normal, the light signal that optical transceiver module will be sent by the last optical switch that the uplink optical fibers that up smooth input interface receives is sent here converts the signal of telecommunication into, sends into signal processing module and handles.And be that light signal is sent to uplink optical fibers through up smooth output interface with the treated electrical signal conversion that signal processing module sends over, transfer to a last optical switch by uplink optical fibers.The light signal that optical transceiver module also will be sent by the next optical switch that the downlink optical fiber that descending smooth input interface receives is sent here converts the signal of telecommunication into, sends into signal processing module and handles.And be that light signal is sent to downlink optical fiber through descending smooth output interface with the treated electrical signal conversion that signal processing module sends over, transfer to next optical switch by downlink optical fiber.Like this, can between local device and upstream plant and downstream plant, transmit and swap data.
Signal processing module is handled the signal that receives, and the signal that sends is handled, and comprises digital coding, decoding, code conversion, data framing, packing data etc.Signal processing module need be handled 5 kinds of data from different directions, is respectively uplink optical fibers input data, uplink optical fibers dateout, downlink optical fiber input data, downlink optical fiber dateout and local transmission data.Data transfer mode has 6 kinds: uplink optical fibers input transfer of data is to local device; Uplink optical fibers input transfer of data to downlink optical fiber is exported; Downlink optical fiber input transfer of data is to local device; Downlink optical fiber input transfer of data is to up optical fiber output; Local device transfer of data to up optical fiber; The local device transfer of data is to downlink optical fiber.
Signal processing module uses large scale integrated circuit to realize, mainly the data of input and output is handled.Between upstream data input, upstream data output, downlink data input, downlink data output, local data input, local data output, carry out the processing of data transfer direction; The operations such as data are encoded, packing, verification to transmitting simultaneously are to ensure the correctness of transmission data.
In above-mentioned priority scheme, the cross-linked module of light path comprises control circuit and multichannel optical switch.The input/output port of multichannel optical switch connects row, descending light path and local light path as required respectively; Under the effect of control circuit; According to instruction between the uplink and downlink light path or set up light path between uplink and downlink light path and the local light path and be connected; Realize that local optical switch inserts the transmission optical-fiber network, or local optical switch is isolated optical transport network.As shown in Figure 3, when local optical switch broke down, control circuit control multichannel optical switch directly was communicated with up smooth input interface and descending smooth output interface, descending smooth input interface and up smooth output interface.
The operating state of fault detection module monitoring optical switch; And, optical switch provides fault-signal when breaking down; Trigger the cross-linked module of light path of optical switch; Delivery optics is switched, optical transceiver module optical interface and the cross-linked module of light path are broken off, be communicated with through the cross-linked module of light path with the downlink optical fiber light path up.Like this, when exchange fault, set up direct-connected optical channel between upstream plant and the downstream plant, the fault switch is isolated, the operate as normal of having guaranteed optical-fiber network with communicate by letter.When the optical switch fault is got rid of; Fault detection module provides normal signal, triggers the cross-linked module of light path, and delivery optics is switched; Up and downlink optical fiber light path are connected with the optical transceiver module optical interface through the cross-linked module of light path, play the effect of normal transmission light signal.
Fault detection module monitoring optical switch whether break down and the flow process controlled as shown in Figure 4.
S1: the state that reads optical transceiver module;
S2: judge whether the optical transceiver module state is normal, if, then get into S2, otherwise optical transceiver module breaks down, get into S8;
S3: the state that reads signal processing module;
S4: judge whether the signal processing module state is normal, if, then get into S5, otherwise signal processing module breaks down, get into S8;
S5: the state that reads power module;
S6: judge whether the power module state is normal, if, then get into S7, otherwise power module breaks down, get into S8;
S7: the cross-linked module of the light path that resets is communicated with the light path between cross-linked module of light path and the optical transceiver module;
S8: start the control circuit in the cross-linked module of light path, carry out light path with the control multichannel optical switch and switch, directly be communicated with uplink optical fibers and downlink optical fiber.
Fault detection module is used to detect the transfer of data fault that optical switch self occurs, like optical module damage, processor deadlock, transfer of data fault etc.Fault detection module has adopted separate optical signals technology and dynamic light power adjustment technology, detects the malfunction of optical module in real time., optical module provides fault-signal when breaking down and can't adjust to normal malfunction.For the situation that processor crashes, fault detection module also can detect, and mainly compares through data and the data check realization.Because the application of fault detection module, optical switch has had intelligentized function, is equipped with the cross-linked module of light path, has realized intelligentized optical link reorganization and network reconfiguration.
As a kind of preferred version, power module is as shown in Figure 5.The power module design uses solar cell to import as power supply; And comprise solar battery suppling circuit; Solar battery suppling circuit comprises voltage stabilizing circuit, filter circuit, energy storage unit and the energy distribution unit that connects successively; To adopt technological means such as voltage stabilizing, filtering, spike absorption, energy storage, energy distribution, realize solid interface with solar cell.Voltage stabilizing circuit mainly adopts voltage-stabiliser tube and power supply voltage stabilizing chip to realize, can bear the input voltage greater than specified input voltage range, has protected the unlikely damage of power circuit.Filter circuit and spike absorb circuit to be realized through the filter circuit that passive component constitutes, and can smoothly import power supply, reduces disturbing pulse.Be designed with energy storage unit and energy distribution unit in the module, can be on average and the out-put supply of buffering solar cell, and the big electric current of moment is provided when starting for optical switch, optical switch can be resetted reliably, the entering steady-working state.From the unsteadiness of solar cell and the reliability that ensures optical communication network, the optical switch specialized designs power down process circuit, when the solar cell fault; Power module loses the power supply supply, can't keep normal operating voltage, at this moment; The cross-linked module of light path starts auto-reset function, and the processing when breaking down as switch is the same, and optical transceiver module optical interface and the cross-linked module of light path are broken off; Be communicated with through the cross-linked module of light path with the downlink optical fiber light path up; Between upstream plant and downstream plant, set up direct-connected optical channel, switch is isolated, the operate as normal of having guaranteed optical-fiber network with communicate by letter.When solar cell recovered normal power supply, the cross-linked module of light path was switched delivery optics, uply passed through the cross-linked module of light path with the downlink optical fiber light path and was connected with the optical transceiver module optical interface, played the effect of normal transmission light signal.
Adopt the technical scheme of the utility model, have the following advantages:
1, this optical switch is designed with the multichannel light path, possesses the cross-linked function of light path, can realize that light path automaticallyes switch.When operate as normal, optical switch receives external data and also transmits, and between up, downstream plant and local device, transmits data.When optical switch breaks down, can't receive data and when transmitting, or break down for the solar cell of optical switch power supply; In the time of can not continuing as switch power supply be provided; For not influencing the proper communication of overall optical network, the optical switch light path that can automatically switch directly is communicated with up optical channel and descending optical channel; Optical switch is separated from optical transport network, and other optical switch can operate as normal on the network.When the eliminating of optical switch fault, or when the eliminating of solar cell fault, recover just often, optical switch can start the light path handoff functionality automatically, and switch is linked in the optical transport network, realizes the normal operation of optical transport network.Make that optical communication network can rebuild light path automatically when having fault to take place, excise faulty equipment, guaranteed the reliability of optical communication.
2, solar cell for supplying power is used in this optical switch design, has designed the special power circuit that is adapted to the solar cell characteristics.This circuit has energy storage function and energy distribution mechanism; Unsettled power supply to solar cell output carries out energy storage and redistributes; The average generally supply capacity and the stability of solar cell out-put supply; On voltage amplitude, play the effect of regulated output voltage, in the electric current supply, improved the electric current deliverability that starts moment, made optical switch in the occasion of solar cell for supplying power, to work reliably.This optical switch energy savings, environmental protection can reduce energy resource consumption, reduces discharging, meets conservation-minded society and sustainable development idea.Simultaneously easy to install and use, can be applicable to remote area and places such as field, mountain forest.Install simultaneously simply, easy to use, can form the bus type optical transport network, transmission range almost can infinitely be extended.
3, the communications status testing mechanism of this optical switch special and swap data checking circuit detect the optical communication state, judge whether the optical communication state is in normal condition or has fault to take place.And the data of transmission, exchange are carried out verification through the data check circuit, receive whether consistent with the data of transmitting with checking.Guaranteed the accuracy of data light transmission exchange from mechanism, for failure judgment and processing provide foundation.
4, cost is low, and performance is good, and light path devices and control technology realization fault detect and light path switching through application of advanced have high performance price ratio.
5, install simply, easy to use, can form the bus type optical transport network, transmission range almost can infinitely be extended.
6, through reliability design, reliability is high, and stable performance is applied widely.
Should be noted that at last; Above content is only in order to explain the technical scheme of the utility model; But not to the restriction of the utility model protection range; The simple modification that those of ordinary skill in the art carries out the technical scheme of the utility model perhaps is equal to replacement, does not all break away from the essence and the scope of the utility model technical scheme.
Claims (5)
1. optical switch; It is characterized in that: comprise the cross-linked module of light path, optical transceiver module, the signal processing module that connect successively, also comprise power module and the fault detection module that is connected the cross-linked module of light path, optical transceiver module, signal processing module, power module respectively;
The cross-linked module of said light path be used for receiving optical signals and with optical signal transmission to optical transceiver module; And the light signal that optical transceiver module sends sent; The cross-linked module of said light path also is used for when optical switch breaks down; Receive the control signal of fault detection module, directly the light signal that receives is forwarded;
Said optical transceiver module is used for the light signal of the cross-linked module of receiving light path transmission, and converts light signal into the signal of telecommunication and be sent to signal processing module; Receive the signal of telecommunication that signal processing module transmits, and be to be sent to the cross-linked module of light path behind the light signal electrical signal conversion;
Said signal processing module is used for the signal that receives is handled, and the signal that needs send is handled;
Power module is used to switch stable working power is provided;
Said fault detection module is used to detect the running status of optical transceiver module, signal processing module, power module; And when optical transceiver module and/or signal processing module and/or power module broke down, control light path cross link module directly forwarded the light signal that receives.
2. optical switch according to claim 1 is characterized in that: the cross-linked module of said light path comprises up smooth input interface, up smooth output interface, descending smooth input interface, descending smooth output interface, the up smooth input interface of optical transceiver module, the up smooth output interface of optical transceiver module, the descending smooth input interface of optical transceiver module, the descending smooth output interface of optical transceiver module;
Said up smooth input interface, up smooth output interface connect uplink optical fibers respectively; Descending smooth input interface, descending smooth output interface connect downlink optical fiber respectively; The up smooth input interface of said optical transceiver module connects the up smooth input interface of optical transceiver module; The up smooth output interface of optical transceiver module connects the up smooth output interface of optical transceiver module; The descending smooth input interface of optical transceiver module connects the descending smooth input interface of optical transceiver module, and the descending smooth output interface of optical transceiver module connects the descending smooth output interface of optical transceiver module.
3. optical switch according to claim 2 is characterized in that: the cross-linked module of said light path comprises control circuit and multichannel optical switch;
Said control circuit is used to receive the control signal of fault detection module; Be communicated with light path Cross module and optical transceiver module with the control multichannel optical switch; Perhaps when optical switch broke down, the control multichannel optical switch directly was communicated with up smooth input interface and descending smooth output interface, descending smooth input interface and up smooth output interface;
Said multichannel optical switch is used under the control of control circuit; Be communicated with light path Cross module and optical transceiver module; Perhaps when optical switch breaks down, directly be communicated with up smooth input interface and descending smooth output interface, descending smooth input interface and up smooth output interface.
4. according to claim 1 or 2 or 3 described optical switchs, it is characterized in that: said power module comprises solar cell.
5. optical switch according to claim 4; It is characterized in that: said power module also comprises solar battery suppling circuit, and said solar battery suppling circuit comprises voltage stabilizing circuit, filter circuit, energy storage unit, the energy distribution unit that connects successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220264337XU CN202617301U (en) | 2012-06-06 | 2012-06-06 | Optical switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220264337XU CN202617301U (en) | 2012-06-06 | 2012-06-06 | Optical switch |
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| CN202617301U true CN202617301U (en) | 2012-12-19 |
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| CN201220264337XU Expired - Fee Related CN202617301U (en) | 2012-06-06 | 2012-06-06 | Optical switch |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103986670A (en) * | 2014-04-24 | 2014-08-13 | 电子科技大学 | Method for obtaining performance of optical switch chip |
| CN108809417A (en) * | 2018-05-28 | 2018-11-13 | 安徽维德工业自动化有限公司 | A kind of fault detection system and its detection method of fiber optical transceiver |
| CN111901193A (en) * | 2020-07-16 | 2020-11-06 | 苏州伏特通信科技有限公司 | Communication transmission equipment fault detection system |
| CN113904998A (en) * | 2021-09-29 | 2022-01-07 | 杭州迪普科技股份有限公司 | Switch state indication method and device |
-
2012
- 2012-06-06 CN CN201220264337XU patent/CN202617301U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103986670A (en) * | 2014-04-24 | 2014-08-13 | 电子科技大学 | Method for obtaining performance of optical switch chip |
| CN103986670B (en) * | 2014-04-24 | 2017-11-21 | 电子科技大学 | A kind of acquisition methods of smooth exchange chip performance |
| CN108809417A (en) * | 2018-05-28 | 2018-11-13 | 安徽维德工业自动化有限公司 | A kind of fault detection system and its detection method of fiber optical transceiver |
| CN108809417B (en) * | 2018-05-28 | 2021-02-19 | 安徽维德工业自动化有限公司 | Fault detection system and method for optical fiber transceiver |
| CN111901193A (en) * | 2020-07-16 | 2020-11-06 | 苏州伏特通信科技有限公司 | Communication transmission equipment fault detection system |
| CN113904998A (en) * | 2021-09-29 | 2022-01-07 | 杭州迪普科技股份有限公司 | Switch state indication method and device |
| CN113904998B (en) * | 2021-09-29 | 2023-10-27 | 杭州迪普科技股份有限公司 | Switch state indication method and device |
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Granted publication date: 20121219 Termination date: 20130606 |