CN216437197U - Multi-channel optical signal link active switching device - Google Patents
Multi-channel optical signal link active switching device Download PDFInfo
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- CN216437197U CN216437197U CN202122810623.3U CN202122810623U CN216437197U CN 216437197 U CN216437197 U CN 216437197U CN 202122810623 U CN202122810623 U CN 202122810623U CN 216437197 U CN216437197 U CN 216437197U
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Abstract
The utility model discloses an active switching device of multichannel optical signal link, which comprises a first group of photoelectric conversion units, a second group of photoelectric conversion units and a third group of photoelectric conversion units which are respectively connected with a first optical link, a second optical link and a third optical link; and an electric signal switching unit connected to the first, second, and third groups of photoelectric conversion units, respectively; and the control unit is respectively connected with the first group of photoelectric conversion units, the second group of photoelectric conversion units and the third group of photoelectric conversion units, the control unit is also connected with the electric signal switching unit, and the control unit receives optical link state information corresponding to the first group of photoelectric conversion units and the second group of photoelectric conversion units and sends a control instruction to the electric signal switching unit for switching. The utility model discloses light signal decay is low, and conduction distance is far away, can realize that multichannel active automatic switch-over, manual control switch-over and remote control switch-over.
Description
Technical Field
The application belongs to the technical field of optical transmission, and particularly relates to an active switching device for a multichannel optical signal link.
Background
The optical signal transmission technology has the characteristics of high sensitivity, high transmission bandwidth, high transmission rate and strong anti-interference performance, and is widely applied to network transmission projects of computer networks, cities and the like at present. At present, optical signal transmission mainly adopts optical fiber transmission, and the difficulty of optical signal transmission lies in controlling the transmission loss of optical signals.
Although the existing passive optical signal link switching method can realize switching of an optical signal link, the switching brings attenuation of an optical signal, transmission loss of the optical signal cannot be controlled, the quality of the switched optical signal is difficult to guarantee, and long-distance transmission cannot be realized.
The current optical signal link switching scheme has no control switching unit module, and cannot realize the manual switching and remote switching functions of the optical signal link. In addition, the current scheme also has no indication function of switching the state, and cannot indicate the link state of the optical signal link and the state of the channel where the optical signal link is switched in real time.
Disclosure of Invention
The application aims to provide a multichannel optical signal link active switching device to solve the problems of easy attenuation, unstable transmission and the like of optical signals.
In order to achieve the purpose, the technical scheme of the application is as follows:
a multi-channel optical signal link active switching device for implementing switching of a third optical link to a first optical link or a second optical link, the multi-channel optical signal link active switching device comprising:
the first group of photoelectric conversion units, the second group of photoelectric conversion units and the third group of photoelectric conversion units are respectively connected with the first optical link, the second optical link and the third optical link;
an electric signal switching unit connected to the first, second, and third groups of photoelectric conversion units, respectively;
the control unit is respectively connected with the first group of photoelectric conversion units, the second group of photoelectric conversion units and the third group of photoelectric conversion units, the control unit is also connected with the electric signal switching unit, and the control unit receives optical link state information corresponding to the first group of photoelectric conversion units and the second group of photoelectric conversion units and sends a control instruction to the electric signal switching unit for switching.
Optionally, the multi-channel optical signal link active switching apparatus further includes:
and the state indicating unit is connected with the control unit.
Optionally, the multi-channel optical signal link active switching apparatus further includes:
and the information acquisition unit is connected with the control unit.
Optionally, the multi-channel optical signal link active switching apparatus further includes:
and the change-over switch is connected with the control unit.
Optionally, the multi-channel optical signal link active switching apparatus further includes:
and the remote control interface is connected with the control unit.
The utility model provides an active auto-change over device of multichannel optical signal link, light signal decay reduces, and the conduction distance is far away, can realize the active automatic switch-over of multichannel of light signal, manual control switching and remote control switching, can also instruct the real-time condition that the light signal switches over, obtains the health management information such as the voltage, electric current and the temperature of device, switches and the switching of remote optical link transmission when being applicable to multichannel optical link.
Drawings
Fig. 1 is a schematic structural diagram of an active switching device for a multi-channel optical signal link.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
In one embodiment, as shown in fig. 1, there is provided a multi-channel optical signal link active switching apparatus for implementing switching of a third optical link to a first optical link or a second optical link, including:
the first group of photoelectric conversion units, the second group of photoelectric conversion units and the third group of photoelectric conversion units are respectively connected with the first optical link, the second optical link and the third optical link;
an electric signal switching unit connected to the first, second, and third groups of photoelectric conversion units, respectively;
the control unit is respectively connected with the first group of photoelectric conversion units, the second group of photoelectric conversion units and the third group of photoelectric conversion units, the control unit is also connected with the electric signal switching unit, and the control unit receives optical link state information corresponding to the first group of photoelectric conversion units and the second group of photoelectric conversion units and sends a control instruction to the electric signal switching unit for switching.
In this embodiment, 3 sets of photoelectric conversion units are respectively composed of N optical modules, that is, each set of photoelectric conversion unit includes N optical channels, and mainly realizes conversion of photoelectric signals. The switching of the electrical signals is realized through an electrical signal switching unit (mainly composed of a plurality of digital cross switches), namely, the optical signals transmitted from the outside are firstly converted into electricity through an optical module in the device, then the electrical signals are switched, and the converted electrical signals are converted into light through the optical module. Therefore, the direct switching operation of the optical signals is effectively avoided, the optical signal transmission is divided into two independent sections before and after switching through the active device, the power of the optical signals is ensured, and the transmission distance of the optical signals is further ensured.
The electric signal switching unit (mainly composed of a plurality of digital cross switches) mainly realizes synchronous switching of multiple paths of electric signals. The digital crossbar configures the number of digital crossbars according to the number of channels of the signal.
The control unit can be realized by adopting an MCU (micro control unit), receives optical link state information corresponding to the first group of photoelectric conversion units and the second group of photoelectric conversion units, and sends a control instruction to the electric signal switching unit for switching. The MCU is used as a core unit and is mainly used for controlling the on and off of an optical module in the photoelectric conversion unit and the on and off of a digital cross switch signal channel in the electric signal switching unit.
It should be noted that, in the present application, the control unit only acquires the optical link state information from the first group of photoelectric conversion units and the second group of photoelectric conversion units, for example, when receiving a high level, the control unit considers that the state is abnormal, and when receiving a low level, the control unit considers that the state is normal. And then a control instruction can be sent to the electric signal switching unit through a simple comparison circuit. For example, level signals received from the first group of photoelectric conversion units and the second group of photoelectric conversion units are compared, and when the electric signal sent from the first group of photoelectric conversion units is at a high level, a control instruction for switching to the second group of photoelectric conversion units is sent, wherein the instruction is a series of pulse signals, such as 01 or 10. Therefore, the control unit can be realized by adopting a simple digital circuit, and the improvement of a computer program is not involved. The photoelectric conversion and the electrical signal switching are well-established technologies in the field, and are not described herein again.
In another specific embodiment, the multi-channel optical signal link active switching device of the present application further includes:
and the state indicating unit is connected with the control unit.
In this embodiment, the status indication unit mainly includes 8 indicator lights, and is respectively used for displaying the power status, the operating status, the switching status, and the link operating status of the device. The running state, switching state and link working state indicator lamps can be controlled by the MCU. The control unit can judge the control state indicator lamp according to the switched channel state and display the current switching state and the link state in real time.
It should be noted that the control unit controls the status indication unit to display, which belongs to a common technical means in the field and does not relate to the improvement of the computer program.
In another specific embodiment, the multi-channel optical signal link active switching device of the present application further includes:
and the change-over switch is connected with the control unit.
In this embodiment, the control unit may receive a control signal of the switch, and implement a switching function of manually controlling the optical signal link.
In another specific embodiment, the multi-channel optical signal link active switching device of the present application further includes:
and the remote control interface is connected with the control unit.
In this embodiment, the control unit may receive a control signal of a remote control interface (e.g., a gigabit network interface), so as to implement a switching function of a remote control optical signal link.
In another specific embodiment, the multi-channel optical signal link active switching device of the present application further includes:
and the information acquisition unit is connected with the control unit.
The information acquisition unit of the embodiment mainly comprises a voltage and current sensor, a temperature sensor and the like. The device is mainly used for collecting the internal voltage, current, temperature and other health management information of the device. Such health management information may be obtained by the control unit via the I2C bus.
The control unit can send the relevant information (the health management information such as voltage, current and temperature, the current switching state information and the like) of the device to a control center (such as a computer) connected with the periphery through a remote control interface, so as to realize remote real-time monitoring.
When the multichannel optical signal link active switching device is powered on and started, the multichannel optical signal link active switching device enters an automatic detection state, firstly, the state of an optical signal link corresponding to a 1 st group of photoelectric conversion units is judged, and if the optical signal link corresponding to the 1 st group of photoelectric conversion units is normal at the moment, the current switching state is kept unchanged; if the optical signal link corresponding to the 1 st group of photoelectric conversion units fails, the optical signal link corresponding to the 2 nd group of photoelectric conversion units is automatically switched to. If the optical signal link corresponding to the 2 nd group of photoelectric conversion units is also failed when the optical signal link is switched to the 2 nd group of photoelectric conversion units, the channel is switched back to the 1 st group of photoelectric conversion units, and the optical signal link corresponding to the 1 st group of photoelectric conversion units is kept in the switching state of the 1 st group of photoelectric conversion units regardless of whether the state of the optical signal link corresponding to the 1 st group of photoelectric conversion units is normal or not.
When the device is in a normal working state, the corresponding change-over switch is pressed, and the device can be switched to another state. For example, if the channel corresponding to the 1 st group of photoelectric conversion units is currently switched to the optical signal link of the 2 nd group of photoelectric conversion units, the channel corresponding to the 2 nd group of photoelectric conversion units is switched to if the switch corresponding to the channel corresponding to the 2 nd group of photoelectric conversion units is pressed; and if the change-over switch corresponding to the 1 st group of photoelectric conversion units is pressed, keeping the current state unchanged.
The control unit receives the switching control information through the remote control interface and realizes the switching of the optical signal link by analyzing the switching instruction of the remote control. For example, if a switching instruction for switching to the 2 nd group of photoelectric conversion units from the remote control interface is received in a channel corresponding to the 1 st group of photoelectric conversion units, the optical signal link of the 1 st group of photoelectric conversion units can be switched; and if a switching instruction for switching the remote control interface to the 1 st group of photoelectric conversion unit channels is received, keeping the current state unchanged.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (5)
1. An active switching device for a multi-channel optical signal link, configured to implement switching from a third optical link to a first optical link or a second optical link, the active switching device comprising:
the first group of photoelectric conversion units, the second group of photoelectric conversion units and the third group of photoelectric conversion units are respectively connected with the first optical link, the second optical link and the third optical link;
an electric signal switching unit connected to the first, second, and third groups of photoelectric conversion units, respectively;
the control unit is respectively connected with the first group of photoelectric conversion units, the second group of photoelectric conversion units and the third group of photoelectric conversion units, the control unit is also connected with the electric signal switching unit, and the control unit receives optical link state information corresponding to the first group of photoelectric conversion units and the second group of photoelectric conversion units and sends a control instruction to the electric signal switching unit for switching.
2. The multi-channel optical signal link active switching device of claim 1, further comprising:
and the state indicating unit is connected with the control unit.
3. The multi-channel optical signal link active switching device of claim 1, further comprising:
and the information acquisition unit is connected with the control unit.
4. The multi-channel optical signal link active switching device of claim 1, further comprising:
and the change-over switch is connected with the control unit.
5. The multi-channel optical signal link active switching device of claim 1, further comprising:
and the remote control interface is connected with the control unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122810623.3U CN216437197U (en) | 2021-11-16 | 2021-11-16 | Multi-channel optical signal link active switching device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122810623.3U CN216437197U (en) | 2021-11-16 | 2021-11-16 | Multi-channel optical signal link active switching device |
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| Publication Number | Publication Date |
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| CN216437197U true CN216437197U (en) | 2022-05-03 |
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| CN202122810623.3U Active CN216437197U (en) | 2021-11-16 | 2021-11-16 | Multi-channel optical signal link active switching device |
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