CN113783620B - Control method and device of light conversion equipment, light conversion equipment and communication system - Google Patents
Control method and device of light conversion equipment, light conversion equipment and communication system Download PDFInfo
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- 238000004891 communication Methods 0.000 title claims abstract description 160
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/29—Repeaters
- H04B10/291—Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
- H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
- H03K17/687—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being field-effect transistors
- H03K17/6871—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being field-effect transistors the output circuit comprising more than one controlled field-effect transistor
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
- H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
- H03K17/687—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being field-effect transistors
- H03K17/693—Switching arrangements with several input- or output-terminals, e.g. multiplexers, distributors
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Abstract
The application relates to a control method and a control device of light conversion equipment, the light conversion equipment and a communication system, wherein the light conversion equipment comprises a power module, a gating module, a light conversion module and a signal enhancement module; the power supply module is connected with the gating module, and the gating module is respectively connected with the optical conversion module and the signal enhancement module; the gating module is used for selecting to be connected with the test equipment through the optical conversion module under the control of the optical conversion equipment, or selecting to be connected with the next-level communication equipment through the signal enhancement module; the signal enhancement module is used for amplifying the coaxial signal received by the light conversion equipment; namely, the light conversion equipment can be used as not only common coaxial light conversion equipment but also signal enhancement equipment for increasing the transmission distance of coaxial signals; by carrying out signal enhancement processing on the attenuated signals, the transmission distance of the coaxial signals can be increased, the communication requirements among coaxial communication devices in different environments are met, and the application range of the coaxial communication devices is increased.
Description
Technical Field
The present application relates to the field of optical fiber communication technologies, and in particular, to a method and an apparatus for controlling a light conversion device, and a communication system.
Background
The Fiber Channel (FC) bus technology is mainly applied to the communication network technology of aerospace electronic systems, has the characteristics of high transmission speed, low delay, long transmission distance, high reliability and the like, and the maximum speed of the FC Fiber communication technology can reach 4.5Gbps at present; therefore, the FC-AE-1553 optical fiber communication data bus technical protocol adopted by the FC optical fiber communication technology is mainly applied to the fields of aerospace and military industry.
The external port of the communication equipment with the FC-AE-1553 protocol function generally has two forms: FC optical port and FC coaxial port; the FC coaxial port adopts a coaxial cable as a transmission medium, and generally can only transmit about 30 meters of distance to the maximum extent, so that the transmission distance is short.
Disclosure of Invention
In view of the above, it is desirable to provide a method and an apparatus for controlling an optical relay device, and a communication system, which can increase a coaxial communication distance.
In a first aspect, a light conversion device is provided, the light conversion device comprising: the device comprises a power supply module, a gating module, an optical conversion module and a signal enhancement module; the power supply module is connected with the gating module, and the gating module is respectively connected with the optical conversion module and the signal enhancement module;
the gating module is used for selecting to be connected with the test equipment through the optical conversion module under the control of the optical conversion equipment, or selecting to be connected with the next-level communication equipment through the signal enhancement module;
and the signal enhancement module is used for amplifying the coaxial signal received by the light conversion equipment.
In one embodiment, the gating module comprises a transmitting gating unit and a receiving gating unit; the power supply module is respectively connected with the transmitting gating unit and the receiving gating unit;
the transmitting gating unit is respectively connected with the optical conversion module and the signal enhancement module; the receiving gating unit is respectively connected with the optical conversion module and the signal enhancement module.
In one embodiment, the signal enhancement module comprises a first signal enhancement unit and a second signal enhancement unit; the first signal enhancement unit is respectively connected with the optical conversion module and the second signal enhancement unit through the sending gating unit; the first signal enhancement unit is also connected with the optical conversion module and the second signal enhancement unit respectively through the receiving gating unit;
the second signal enhancement unit is used for amplifying the first coaxial signal transmitted by the sending gating unit and transmitting the amplified first coaxial signal to the next-stage communication equipment; the first signal enhancement unit is used for amplifying the second coaxial signal transmitted by the receiving gating unit and then transmitting the amplified second coaxial signal to the previous-stage communication equipment; the first coaxial signal is sent by a previous-stage communication device connected with the light conversion device, and the second coaxial signal is sent by a next-stage communication device connected with the light conversion device.
In one embodiment, the light conversion device further comprises a switch module;
the switch module is respectively connected with the transmitting gating unit and the receiving gating unit in a switching-on and switching-off manner and is used for controlling the transmitting gating unit and the receiving gating unit and selectively connected with the testing equipment through the optical conversion module or the next-stage communication equipment through the second signal enhancement unit.
In one embodiment, the switch module comprises an on-off switch, a first field effect transistor and a second field effect transistor; the power supply module is connected with the on-off switch; the on-off switch is connected with the transmitting gating unit through a first field effect tube and is connected with the receiving gating unit through a second field effect tube;
under the condition that the on-off switch is in an off state under the control of the light conversion equipment, the first field effect tube and the second field effect tube are not conducted, and the transmitting gating unit and the receiving gating unit are selectively connected with the test equipment through the light conversion module;
and under the condition that the on-off switch is in a closed state under the control of the light conversion equipment, the first field effect tube and the second field effect tube are conducted, and the transmitting gating unit and the receiving gating unit are selectively connected with the next-stage communication equipment through the second signal enhancement unit.
In one embodiment, the signal enhancement module is a coaxial transformer.
In a second aspect, a method for controlling a light conversion device is provided, which is applied to any one of the light conversion devices in the first aspect, and includes:
acquiring a switch control signal according to a current service scene; the current service scene comprises a test scene and a non-test scene;
and according to the switch control signal, controlling the gating module to be selectively connected with the test equipment through the optical conversion module, or selectively connected with the next-level communication equipment through the signal enhancement module.
In a third aspect, there is provided a control device for a light conversion device, which is applied to any one of the light conversion devices in the first aspect, and includes:
the acquisition module is used for acquiring a switch control signal according to the current service scene; the current service scene comprises a test scene and a non-test scene;
and the control module is used for controlling the gating module to be selectively connected with the test equipment through the optical conversion module or to be selectively connected with the next-level communication equipment through the signal enhancement module according to the switch control signal.
In a fourth aspect, there is provided a computer readable storage medium having stored thereon a computer program which when executed by a processor performs the steps of:
acquiring a switch control signal according to a current service scene; the current service scene comprises a test scene and a non-test scene;
and according to the switch control signal, controlling the gating module to be selectively connected with the test equipment through the optical conversion module, or selectively connected with the next-level communication equipment through the signal enhancement module.
In a fifth aspect, a communication system is provided, which includes a previous-stage communication device, a next-stage communication device, and at least one light-converting device in any one of the first aspects;
the former-stage communication equipment is connected with the next-stage communication equipment after cascading with at least one light conversion equipment.
The control method and device of the light conversion device, the light conversion device and the communication system are provided, wherein the light conversion device comprises: the device comprises a power supply module, a gating module, an optical conversion module and a signal enhancement module; the power supply module is connected with the gating module, and the gating module is respectively connected with the optical conversion module and the signal enhancement module; the gating module is used for selecting to be connected with the test equipment through the optical conversion module under the control of the optical conversion equipment, or selecting to be connected with the next-level communication equipment through the signal enhancement module; the signal enhancement module is used for amplifying the coaxial signal received by the light conversion equipment; that is to say, the light conversion device in the embodiment of the present application can be used not only as a common coaxial light conversion device, but also as a signal enhancement device for increasing the transmission distance of coaxial signals; when the signal enhancement device is used as a signal enhancement device, the attenuated coaxial signal is subjected to signal enhancement processing, so that the transmission distance of the coaxial signal can be increased, the communication requirements among coaxial communication devices under different environments can be met, the application range of the coaxial communication devices can be further increased, and the flexible adjustment performance of the communication distance can be improved.
Drawings
Fig. 1 is a schematic structural diagram of a light conversion device provided in an embodiment of the present application;
fig. 2 is another schematic structural diagram of a light conversion device provided in an embodiment of the present application;
fig. 3 is another schematic structural diagram of a light conversion device provided in an embodiment of the present application;
fig. 4(a) is a schematic connection diagram of a switch module in a light conversion device provided in an embodiment of the present application;
fig. 4(b) is another connection schematic diagram of a switch module in the light conversion device provided in the embodiment of the present application;
fig. 5 is another schematic structural diagram of a light conversion device provided in an embodiment of the present application;
FIG. 6 is a flow chart illustrating a method of controlling a light conversion device according to an embodiment;
fig. 7 is a block diagram showing a configuration of a control device of the light conversion device in one embodiment;
fig. 8 is a schematic structural diagram of a communication system in one embodiment.
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.
The light conversion equipment provided by the embodiment of the application is suitable for the technical field of optical fiber communication, in particular to the communication technology in the fields of aerospace and military industry; the FC communication device generally adopts an FC-AE-1553 optical fiber communication data bus technical protocol, and external ports of the FC communication device having the FC-AE-1553 protocol function generally have two forms: FC optical port and FC coaxial port; the transmission media and transmission distances of these two ports are as follows:
the FC optical port adopts an optical fiber line as a transmission medium, the FC optical port can adopt an FC multi-mode optical module and an FC single-mode optical module, the FC multi-mode optical module adopts a multi-mode optical fiber line and can transmit a distance of hundreds of meters, and the FC single-mode optical module adopts a single-mode optical fiber line and can transmit kilometers or even dozens of kilometers.
The FC coaxial port uses a coaxial cable as a transmission medium, and generally can transmit only about 30 meters of distance.
Therefore, for the FC coaxial communication device whose external port is the FC coaxial port, the communication distance of the FC coaxial communication device in practical application needs to be increased to meet the communication requirements under different environments.
The embodiment of the application provides a light conversion device, which is added with a coaxial signal enhancement function on the basis of the existing coaxial light conversion device, so that the light conversion device not only can be used as a common coaxial light conversion device, but also can be used as a signal enhancement device for increasing the transmission distance of coaxial signals; when the optical conversion equipment is used as common coaxial optical conversion equipment, the optical conversion equipment is used for converting a coaxial signal output by a coaxial port of FC coaxial communication equipment into an optical signal so as to match with optical port input of test equipment, and further carrying out related function test on the connectivity of the coaxial port; when the light conversion device is used as an enhancement device, the light conversion device can enhance the signal of the attenuation signal transmitted by the coaxial cable, so that the enhanced coaxial signal can be transmitted for a longer distance, and the transmission distance of the coaxial signal is increased.
The following describes the technical solutions of the present application and how to solve the above technical problems with specific examples. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments. Embodiments of the present application will be described below with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of a light conversion device provided in an embodiment of the present application. As shown in fig. 1, the light conversion device 10 includes: the system comprises a power supply module 11, a gating module 12, a light conversion module 13 and a signal enhancement module 14; the power module 11 is connected with the gating module 12, and the gating module 12 is respectively connected with the optical conversion module 13 and the signal enhancement module 14; the gating module 12 is used for selecting to be connected with the testing device 15 through the optical conversion module 13 or to be connected with the next-stage communication device 16 through the signal enhancement module 14 under the control of the optical conversion device 10; and the signal enhancement module 14 is configured to amplify the coaxial signal received by the light conversion device 10.
Optionally, the light conversion device 10 may further include a controller, and the controller may be configured to control the gating module 12, so that the gating module 12 is selectively connected to the testing device 15 through the light conversion module 13, or selectively connected to the next-stage communication device 16 through the signal enhancement module 14; the controller comprises but is not limited to a control device such as an MCU, a CPU, a DSP, an FPGA programmable logic device and the like.
Optionally, the power module 11 may be a DC/DC isolated power supply for performing power voltage conversion to provide a power voltage for at least one of the gating module 12, the optical conversion module 13 and the signal enhancement module 14; for example: the power supply module 11 can provide a power supply voltage of 3.3V for the gating module 12, and can also provide a power supply voltage of 5V for the signal enhancement module 14; of course, the power module 11 may also provide a required power voltage for other modules in the light conversion device 10, which is not limited in this embodiment of the application; besides, the power module 11 may also be other types of power modules, such as an AC/DC power supply, as long as the power module 11 can provide a required power voltage for each module in the light conversion device 10, which is not limited in the embodiment of the present application.
Optionally, the optical conversion module 13 may be configured to implement interconversion between a coaxial electrical signal and an optical signal, and since the external port type of the testing device matched with the FC communication device is an optical port, when testing a coaxial interface of the FC coaxial communication device (the external port type is a coaxial port), the optical conversion module 13 in the optical conversion device 10 needs to implement interconversion between the coaxial electrical signal and the optical signal, so as to perform related tests on functions such as connectivity of the coaxial interface. Optionally, the optical conversion module 13 supports an FC protocol, and can convert an FC electrical signal into an FC optical signal, where the transmission medium is an optical fiber line.
Optionally, when the optical converter 10 is used for data communication, the previous-stage communication device 17 may be connected to the next-stage communication device 16 through the optical converter 10, and after the optical converter 10 receives the coaxial signal output by the previous-stage communication device 17, since the coaxial signal is seriously attenuated in the transmission process of the coaxial cable, the signal enhancement module 14 in the optical converter 10 needs to perform signal enhancement processing on the attenuated coaxial signal to improve the transmission power of the coaxial signal, so that the coaxial signal can be continuously transmitted to the next-stage communication device 16 through the coaxial cable. Optionally, the strength of the coaxial signal enhanced by the signal enhancement module 14 may be the same as the strength of the coaxial signal output by the previous-stage communication device 17, or may be slightly greater than or smaller than the strength of the coaxial signal output by the previous-stage communication device 17; that is to say, in this embodiment of the present application, relevant parameters of the signal enhancement module 14 may be flexibly set or adjusted according to actual communication requirements, so that the signal enhancement module 14 may output coaxial signals with different powers, which is not limited in this embodiment of the present application.
Optionally, when the light conversion device 10 is used for data communication, in a communication link between the previous-stage communication device 17 and the next-stage communication device 16, a plurality of light conversion devices 10 may also be cascaded, that is, an output of one light conversion device 10 is connected to an input of another light conversion device 10, so as to implement signal transmission at different communication distances, and the universality and flexibility are strong.
The light conversion equipment comprises a power supply module, a gating module, a light conversion module and a signal enhancement module; the power supply module is connected with the gating module, and the gating module is respectively connected with the optical conversion module and the signal enhancement module; the gating module is used for selecting to be connected with the test equipment through the optical conversion module under the control of the optical conversion equipment, or selecting to be connected with the next-level communication equipment through the signal enhancement module; the signal enhancement module is used for amplifying the coaxial signal received by the light conversion equipment; that is to say, the light conversion device in the embodiment of the present application can be used not only as a common coaxial light conversion device, but also as a signal enhancement device for increasing the transmission distance of coaxial signals; when the signal enhancement device is used as a signal enhancement device, the attenuated coaxial signal is subjected to signal enhancement processing, so that the transmission distance of the coaxial signal can be increased, the communication requirements among coaxial communication devices under different environments can be met, the application range of the coaxial communication devices can be further increased, and the flexible adjustment performance of the communication distance can be improved.
In one embodiment, as shown in fig. 2, the gating module 12 includes a transmission gating unit 121 and a reception gating unit 122; the power supply module 11 is connected with the transmission gating unit 121 and the reception gating unit 122, respectively; the transmission gating unit 121 is respectively connected with the optical conversion module 13 and the signal enhancement module 14; the receiving gate unit 122 is connected to the optical conversion module 13 and the signal enhancement module 14, respectively.
Alternatively, the transmission gating unit 121 may select to connect with the testing device 15 through the optical conversion module 13 under the control of the optical conversion device 10, or select to connect with the next-stage communication device 16 through the signal enhancement module 14; the receiving gating unit 122 may also be selectively connected to the testing device 15 through the optical conversion module 13 or the next-stage communication device 16 through the signal enhancement module 14 under the control of the optical conversion device 10. Alternatively, the transmitting gating unit 121 and the receiving gating unit 122 may simultaneously select to be connected to the testing device 15 through the optical conversion module 13 under the control of the optical conversion device 10 to be used as a common coaxial optical conversion device, or simultaneously select to be connected to the next-stage communication device 16 through the signal enhancement module 14 to be used as a signal enhancement device to increase the transmission distance of the coaxial signal.
Optionally, when the transmitting gating unit 121 and the receiving gating unit 122 simultaneously select to be connected with the next-stage communication device 16 through the signal enhancement module 14 for use, for a transmitting signal path, the previous-stage communication device 17 outputs a coaxial signal through a coaxial transmitting port, transmits the coaxial signal to the signal enhancement module 14 through the transmitting gating unit 121, and then transmits the attenuated coaxial signal to a receiving port of the next-stage communication device 16 through the transmitting port of the signal enhancement module 14 after the attenuated coaxial signal is amplified by the signal enhancement module 14; for the receiving signal path, the transmitting port of the next-stage communication device 16 outputs a coaxial signal, and the receiving port of the signal enhancement module 14 receives the attenuated coaxial signal, amplifies the attenuated coaxial signal, and transmits the amplified coaxial signal to the coaxial receiving port of the previous-stage communication device 17 through the receiving gating unit 122, thereby completing the receiving of the coaxial signal.
In this embodiment, the gating module includes a transmitting gating unit and a receiving gating unit, the power module is respectively connected with the transmitting gating unit and the receiving gating unit, the transmitting gating unit is respectively connected with the optical conversion module and the signal enhancement module, and the receiving gating unit is respectively connected with the optical conversion module and the signal enhancement module; that is, the light conversion device in this embodiment includes a transmission data path and a reception data path, and data transmission and reception do not interfere with each other, so that data transmission and reception efficiency can be improved.
In one embodiment, as shown in fig. 3, the signal enhancement module 14 includes a first signal enhancement unit 141 and a second signal enhancement unit 142; the first signal enhancement unit 141 is connected to the optical conversion module 13 and the second signal enhancement unit 142 through the transmission gate unit 121, respectively; the first signal enhancement unit 141 is also connected to the optical conversion module 13 and the second signal enhancement unit 142 through the reception gating unit 122, respectively; a second signal enhancement unit 142 for amplifying the first coaxial signal transmitted through the transmission gating unit 121 and transmitting the amplified first coaxial signal to the next-stage communication device 16; the first signal enhancement unit 141, configured to amplify the second coaxial signal transmitted by the receiving gating unit 122 and transmit the amplified second coaxial signal to the previous-stage communication device 17; the first coaxial signal is transmitted by the former-stage communication device 17 connected to the light conversion device 10, and the second coaxial signal is transmitted by the next-stage communication device 16 connected to the light conversion device 10.
Optionally, when the transmitting gating unit 121 and the receiving gating unit 122 simultaneously select to be connected to the next-stage communication device 16 through the signal enhancement module 14, and when the first signal enhancement unit 141 receives a first coaxial signal from the previous-stage communication device 17 through a coaxial transmitting port for a transmitting signal path, the first coaxial signal may be transmitted to the second signal enhancement module 142 through the transmitting gating unit 121, so that the second signal enhancement module 142 amplifies the attenuated first coaxial signal and transmits the amplified first coaxial signal to the next-stage communication device 16; optionally, the first signal enhancement unit 141 may further perform some preprocessing operations on the attenuated first coaxial signal, and then transmit the preprocessed first coaxial signal to the second signal enhancement module 142 through the transmission gating unit 121; for example, the preprocessing operation may be an equalization processing operation on the attenuated coaxial signal.
For the received signal path, after receiving the second coaxial signal sent by the next-stage communication device 16, the second signal enhancement module 142 may transmit the second coaxial signal to the first signal enhancement module 141 through the receiving gating unit 122, so that the first signal enhancement module 141 amplifies the attenuated second coaxial signal and transmits the amplified second coaxial signal to the previous-stage communication device 17; optionally, the second signal enhancement unit 142 may further perform some preprocessing operations on the attenuated second coaxial signal, and then transmit the preprocessed second coaxial signal to the first signal enhancement module 141 through the receiving gating unit 122; for example, the preprocessing operation may be an equalization processing operation on the attenuated coaxial signal.
Optionally, when the transmission gating unit 121 and the reception gating unit 122 simultaneously select to be connected to the test equipment through the optical conversion module 13, and are used as common coaxial optical conversion equipment, for the transmission signal path, after the first signal enhancement unit 141 receives a third coaxial signal sent from the previous stage communication equipment 17 through the coaxial transmission port, the third coaxial signal may be transmitted to the optical conversion module 13 through the transmission gating unit 121, so that the optical conversion module 13 converts the third coaxial signal into the first optical signal and outputs the first optical signal to the test equipment; for the receiving signal path, after receiving the second optical signal sent by the testing device, the optical conversion module 13 converts the second optical signal into a fourth coaxial signal, and transmits the fourth coaxial signal to the first signal enhancement module 141 through the receiving gating unit 122, so that the first signal enhancement module 141 sends the fourth coaxial signal to the previous-stage communication device 17.
Alternatively, the signal enhancement module 14 may be a coaxial transformer, the first signal enhancement unit 141 may be a first coaxial transformer, and the second signal enhancement unit 142 may be a second coaxial transformer; the first coaxial transformer and the second coaxial transformer may both have a transmitting driver and a receiving equalizer, the transmitting driver is configured to perform enhancement processing on the signal and perform power method processing on the signal, and the receiving equalizer is configured to perform optimal analysis on the signal and equalization processing; optionally, the coaxial transformer may further include a filter and an isolation transformer.
In this embodiment, the signal enhancement module in the light conversion device includes a first signal enhancement unit and a second signal enhancement unit, the first signal enhancement unit is connected to the optical conversion module and the second signal enhancement unit through the transmission gating unit, and the first signal enhancement unit is further connected to the optical conversion module and the second signal enhancement unit through the reception gating unit; the second signal enhancement unit is used for amplifying the first coaxial signal transmitted by the sending gating unit and transmitting the amplified first coaxial signal to the next-stage communication equipment; the first signal enhancement unit is used for amplifying the second coaxial signal transmitted by the receiving gating unit and then transmitting the amplified second coaxial signal to the previous-stage communication equipment; the first coaxial signal is sent by a previous-stage communication device connected with the light conversion device, and the second coaxial signal is sent by a next-stage communication device connected with the light conversion device. That is to say, the optical switch device in this embodiment can perform signal enhancement processing on the coaxial signal on the transmission data path, and can also perform signal enhancement processing on the coaxial signal on the reception data path; in addition, the two signal enhancement units can optimize and equalize the attenuated coaxial signals received by the light conversion equipment, and then perform signal enhancement on the optimized coaxial signals, so that the signal enhancement effect is greatly improved.
In one embodiment, as shown in fig. 4(a), the light conversion device 10 further includes a switch module 18; the switch module 18 is respectively connected to the transmitting gating unit 121 and the receiving gating unit 122 in an on-off manner, and is configured to control the transmitting gating unit 121 and the receiving gating unit 122 to selectively connect to the testing device through the optical conversion module 13, or selectively connect to the next-stage communication device through the second signal enhancement unit 142.
Alternatively, the switch module 18 may be of the type that is directly activated by the user, for example: when the light conversion equipment is provided with the switch module of the type, a user can manually control the light conversion equipment to be used as common coaxial light conversion equipment or signal enhancement equipment; the switching module 18 may also be of the type controlled by electrical signals, for example: when the switch module of the type is arranged in the light conversion equipment, the switch module can be controlled by a controller arranged in the light conversion equipment or by a controller in the switch module, so that the on-off switching control of the switch module is realized.
Alternatively, as shown in fig. 4(a), the switch module 18 may be connected to the channel selection control terminal of the transmission gating unit 121, and the channel selection control terminal of the reception gating unit 122; the first transmitting end of the transmitting gating unit 121 is connected to the optical conversion module 13, and the second transmitting end of the transmitting gating unit 121 is connected to the second signal enhancing unit 142; the first receiving end of the receiving gating unit 122 is connected to the optical conversion module 13, and the second receiving end of the receiving gating unit 122 is connected to the second signal enhancement unit 142. The on and off of the switch module 18 can control the level states of the channel selection control terminals of the transmission gating unit 121 and the reception gating unit 122, and in different level states, the transmission gating unit 121 will select the first transmission terminal or the second transmission terminal to transmit a signal, and the reception gating unit 122 will select the first reception terminal or the second reception terminal to receive a signal. For example: when the channel selection control terminal is at a high level, the transmission gating unit 121 selects the first transmission terminal to transmit a signal, and the reception gating unit 122 selects the first reception terminal to receive a signal, that is, selects to connect with the optical conversion module 13; when the channel selection control terminal is at a low level, the transmit gating unit 121 selects the second transmitting terminal to transmit signals, and the receive gating unit 122 selects the second receiving terminal to receive signals, i.e., selects to connect with the second signal enhancement unit 142.
Alternatively, as shown in fig. 4(b), the switch module 18 may also be connected between the transmitting end of the transmitting gating unit 121 and the receiving end of the receiving gating unit 122, that is, the switch module 18 may be connected between the gating module 12 (the transmitting gating unit 121 and the receiving gating unit 122) and the optical conversion module 13, and the switch module 18 may be connected between the gating module 12 (the transmitting gating unit 121 and the receiving gating unit 122) and the second signal enhancing unit 142; the transmitting gating unit 121 is controlled to be connected to the optical conversion module 13 or to the second signal enhancing unit 142, and the receiving gating unit 122 is controlled to be connected to the optical conversion module 13 or to the second signal enhancing unit 142, by different states of the switching module 18.
It should be noted that, in the embodiment of the present application, a connection manner in which the switch module is respectively connected to the transmitting gating unit and the receiving gating unit in a switchable manner is not limited, as long as the transmitting gating unit can be controlled to select the optical conversion module or the signal enhancement module through the switchable connection with the transmitting gating unit, and the receiving gating unit can be controlled to select the optical conversion module or the signal enhancement module through the switchable connection with the receiving gating unit.
In this embodiment, the optical switching device further includes a switch module, the switch module is respectively connected to the receiving gating unit and the transmitting gating unit in a switchable manner, and is configured to control the receiving gating unit and the transmitting gating unit, and selectively connect to the test device through the optical conversion module, or selectively connect to the next-stage communication device through the second signal enhancement unit; that is to say, the light conversion module in this embodiment realizes the switching selection between the light conversion module and the signal enhancement module by setting the switch module, so that the structural design of the light conversion device can be simplified, and the implementability and operability of the light conversion device are improved.
In one embodiment, as shown in fig. 5, the switch module 18 includes an on/off switch U3, a first fet U2, and a second fet U1; the power supply module 11 is connected with an on-off switch U3; the on-off switch U3 is connected to the transmitting gate unit 121 through a first fet U2 and to the receiving gate unit 122 through a second fet U1.
The transmitting gating unit 121 is a transmitting gating chip U7, the receiving gating unit 122 is a receiving gating chip U8, the optical conversion module 13 is an FC optical module U6, the second signal enhancement unit 142 is a coaxial transformer U4, and the first signal enhancement unit 141 is a coaxial transformer U5.
Optionally, the first fet U2 and the second fet U1 may be N-channel MOS transistors when the voltage between GS is appliedU GS When the voltage is larger than a certain threshold voltage, the MOS tube is conducted,U S =U D when the voltage between GSU GS When the voltage is less than a certain threshold voltage, the MOS tube is not conducted,U S ≠U D 。
alternatively, the on/off switch U3 may be a toggle switch, with the on/off switch U3 being open when the toggle switch is toggled to 1 and the on/off switch U3 being closed when the toggle switch is toggled to 2.
Alternatively, in the case where the on-off switch U3 is in an off state under the control of the light conversion device 10, the first field effect transistor U2 and the second field effect transistor U1 are not conductive, and the transmission gating unit 121 and the reception gating unit 122 are selectively connected to the test device through the light conversion module 13; when the on-off switch U3 is in a closed state under the control of the light conversion device 10, the first fet U2 and the second fet U1 are turned on, and the transmission gating unit 121 and the reception gating unit 122 are selectively connected to the next-stage communication device through the second signal enhancement unit 142. For example: when dialingWhen the switch is turned to 1, the on-off switch U3 is turned off,U GS the first fet U2 and the second fet U1 are not turned on less than the turn-on threshold voltage of the MOS transistor, and the channel selection control terminal 1211 (OE) signals of the transmission gate unit 121 and the reception gate unit 122 are pulled up, i.e., OE =1, to be in a high state, so that the transmission gate unit 121 and the reception gate unit 122 are selectively connected to the optical conversion module 13. When the dial switch is toggled to 2, the on/off switch U3 is closed, the G stage of the first fet U2 and the second fet U1 is pulled up to VCC3V3, the S stage is pulled down to GND, and therefore,U GS the first field effect transistor U2 and the second field effect transistor U1 are conducted when the conduction threshold voltage of the MOS transistor is larger than the conduction threshold voltage; since the weak pull-up (to VCC3V3 with 4.7K resistance) and the strong pull-down (to ground with 0.1K resistance) are connected together, the channel selection control terminal 1211 (OE) signals of the transmitting gate unit 121 and the receiving gate unit 122 appear as pull-down, i.e., OE =0, to be in a low state, and thus, the transmitting gate unit 121 and the receiving gate unit 122 are selectively connected to the second signal enhancing unit 142.
In this embodiment, the switch module includes an on-off switch, a first field effect transistor, and a second field effect transistor; the power supply module is connected with the on-off switch, and the on-off switch is connected with the transmitting gating unit through a first field effect tube and is connected with the receiving gating unit through a second field effect tube; the switch module in this embodiment implements channel selection control of the gating module through a simple hardware circuit structure, further simplifies the overall structural design of the light conversion device, and the light conversion device has a low cost, thereby improving the implementability and operability of the light conversion device.
In one embodiment, as shown in fig. 6, a method for controlling a light conversion device is provided, which is described by taking the method as an example applied to the light conversion device in fig. 1, and includes the following steps:
The optical conversion device can be used as a common coaxial optical conversion device in the test scene, and is used for connecting a communication device with an external port as a coaxial port and a test device with an external port as an optical port to realize the mutual conversion between a coaxial electric signal and an optical signal; in a non-test scene, the light conversion device can be used as a signal enhancement device for connecting a previous-stage communication device with a next-stage communication device and increasing the communication distance between the two-stage communication devices.
Optionally, a switch element operable by a user, such as the dial switch, a key operation, a display screen or a touch screen, may be set on the light conversion device, and a corresponding switch control signal may be obtained by obtaining a trigger operation of the user; the light conversion equipment can also be provided with a communication module, and the switch control signal is obtained by receiving a control signal sent by external terminal equipment; wherein, the communication module may be a wired communication module, for example: an RS485 serial port communication module, an I2C bus communication module and the like; the communication module may also be a wireless communication module, for example: bluetooth, WIFI, ZigBee, LoRa, NB-loT, 4G, 5G and the like; in the embodiment of the present application, a manner of obtaining the switch control signal by the light conversion device is not limited.
Optionally, the light conversion device may control the gating module to selectively connect with the test device through the light conversion module or selectively connect with the next-stage communication device through the signal enhancement module according to the obtained switch control signal through a hardware circuit; the gating module can be controlled to be selectively connected with the testing equipment through the optical conversion module or selectively connected with the next-level communication equipment through the signal enhancement module under the control of software according to the acquired switch control signal.
In the control method of the light conversion equipment, a switch control signal is obtained according to the current service scene, and the gating module is controlled to be selectively connected with the test equipment through the light conversion module or the next-stage communication equipment through the signal enhancement module according to the switch control signal; the current service scene comprises a test scene and a non-test scene; that is to say, in the embodiment of the present application, for different service application scenarios, the light conversion device can perform flexible conversion between the common coaxial light conversion device and the signal enhancement device according to the obtained switch control signal, so that the light conversion device can be used not only as the common coaxial light conversion device, but also as the signal enhancement device for increasing the coaxial signal transmission distance; when the signal enhancement device is used as a signal enhancement device, the attenuated coaxial signal is subjected to signal enhancement processing, so that the transmission distance of the coaxial signal can be increased, the communication requirements among coaxial communication devices under different environments can be met, the application range of the coaxial communication devices can be further increased, and the flexible adjustment performance of the communication distance can be improved.
In one embodiment, as shown in fig. 7, there is provided a control apparatus of a light conversion device, including: an obtaining module 701 and a control module 702, wherein:
an obtaining module 701, configured to obtain a switch control signal according to a current service scenario; the current service scene comprises a test scene and a non-test scene;
and the control module 702 is configured to control the gating module to selectively connect with the test device through the optical conversion module or selectively connect with the next-stage communication device through the signal enhancement module according to the switch control signal.
For specific limitations of the control device of the light conversion device, reference may be made to the above limitations on the control method of the light conversion device, which are not described herein again. All or part of the modules in the control device of the light conversion device can be realized by software, hardware and a combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.
In one embodiment, a computer-readable storage medium is provided, having a computer program stored thereon, which when executed by a processor, performs the steps of:
acquiring a switch control signal according to a current service scene; the current service scene comprises a test scene and a non-test scene;
and according to the switch control signal, controlling the gating module to be selectively connected with the test equipment through the optical conversion module, or selectively connected with the next-level communication equipment through the signal enhancement module.
In one embodiment, as shown in fig. 8, a communication system 80 is provided, the communication system 80 comprising a previous communication device 801, a next communication device 803, and at least one light conversion device 802 of any of the above first aspects; the former-stage communication device 801 is connected to the next-stage communication device 803 by cascading at least one light conversion device 802.
Optionally, a plurality of optical conversion devices (when used as signal enhancement devices) can be connected in a coaxial communication link of a coaxial communication system, and each additional optical conversion device can transmit a coaxial signal of the link by a distance of about 30 meters, and when n optical conversion devices are connected, the communication distance of the entire link can be transmitted to 30 × (n + 1) meters, where n is the number of optical conversion devices in the communication link.
The communication system in the embodiment can flexibly increase the light conversion equipment according to the actual communication distance to increase the communication distance between the two stages of communication equipment, greatly breaks through the limitation that the communication distance can only be transmitted by 30 meters originally, greatly increases the application range of the coaxial communication equipment, and improves the application flexibility of the coaxial communication equipment.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database or other medium used in the embodiments provided herein can include at least one of non-volatile and volatile memory. Non-volatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical storage, or the like. Volatile Memory can include Random Access Memory (RAM) or external cache Memory. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM), among others.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
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 (10)
1. A light conversion device, comprising: the device comprises a power supply module, a gating module, an optical conversion module and a signal enhancement module; the power supply module is connected with the gating module, and the gating module is respectively connected with the optical conversion module and the signal enhancement module;
the gating module is used for selecting to be connected with the test equipment through the optical conversion module under the control of the optical conversion equipment or selecting to be connected with the next-level communication equipment through the signal enhancement module;
the signal enhancement module is used for amplifying the coaxial signal received by the light conversion equipment;
the gating module comprises a transmitting gating unit and a receiving gating unit; the power supply module is respectively connected with the transmitting gating unit and the receiving gating unit;
the transmitting gating unit is respectively connected with the optical conversion module and the signal enhancement module; the receiving gating unit is respectively connected with the optical conversion module and the signal enhancement module;
wherein the signal enhancement module comprises a first signal enhancement unit and a second signal enhancement unit; the first signal enhancement unit is respectively connected with the optical conversion module and the second signal enhancement unit through the sending gating unit; the first signal enhancement unit is also connected with the optical conversion module and the second signal enhancement unit respectively through the receiving gating unit;
the second signal enhancement unit is used for amplifying the first coaxial signal transmitted by the sending gating unit and transmitting the amplified first coaxial signal to the next-stage communication equipment; the first signal enhancement unit is used for amplifying the second coaxial signal transmitted by the receiving gating unit and then transmitting the amplified second coaxial signal to the previous-stage communication equipment; the first coaxial signal is a signal which is sent by the former-stage communication equipment connected with the light conversion equipment and is preprocessed by the first signal enhancement unit, and the second coaxial signal is a signal which is sent by the next-stage communication equipment connected with the light conversion equipment and is preprocessed by the second signal enhancement unit.
2. The light conversion device of claim 1, further comprising a switch module;
the switch module is respectively connected with the transmitting gating unit and the receiving gating unit in a switching-on and switching-off manner and is used for controlling the transmitting gating unit and the receiving gating unit to be connected with the testing equipment through the optical conversion module or connected with the next-stage communication equipment through the second signal enhancement unit.
3. The light conversion device of claim 2, wherein the switch module comprises an on/off switch, a first field effect transistor, and a second field effect transistor; the power supply module is connected with the on-off switch; the on-off switch is connected with the transmitting gating unit through the first field effect tube and is connected with the receiving gating unit through the second field effect tube;
if the on-off switch is in an off state under the control of the light conversion device, the first field effect tube and the second field effect tube are not conducted, and the transmitting gating unit and the receiving gating unit are selectively connected with the test device through the light conversion module;
if the on-off switch is in a closed state under the control of the light conversion equipment, the first field effect tube and the second field effect tube are conducted, and the transmitting gating unit and the receiving gating unit are selectively connected with the next-stage communication equipment through the second signal enhancement unit.
4. A light-converting apparatus according to claim 3, characterized in that the switchable switch is a dial switch.
5. The light conversion device of claim 1, wherein the signal enhancement module is a coaxial transformer.
6. The light conversion device according to claim 1 or 5, wherein the pre-processing is an equalization processing of the attenuated coaxial signal.
7. A method for controlling a light conversion device, which is applied to the light conversion device of any one of claims 1 to 6, the method comprising:
acquiring a switch control signal according to a current service scene; the current service scene comprises a test scene and a non-test scene;
controlling the gating module to be selectively connected with the test equipment through the optical conversion module or to be selectively connected with the next-level communication equipment through the signal enhancement module according to the switch control signal;
the gating module comprises a transmitting gating unit and a receiving gating unit; the power supply module is respectively connected with the transmitting gating unit and the receiving gating unit; the controlling the gating module to select to be connected with the test equipment through the optical conversion module or to select to be connected with the next-level communication equipment through the signal enhancement module according to the switch control signal comprises:
controlling the sending gating unit and the receiving gating unit according to the switch control signal, and selecting to be connected with the test equipment through an optical conversion module or to be connected with the next-level communication equipment through a signal enhancement module;
wherein the signal enhancement module comprises a first signal enhancement unit and a second signal enhancement unit; the first signal enhancement unit is respectively connected with the optical conversion module and the second signal enhancement unit through the sending gating unit; the first signal enhancement unit is also connected with the optical conversion module and the second signal enhancement unit respectively through the receiving gating unit; the second signal enhancement unit is used for amplifying the first coaxial signal transmitted by the sending gating unit and transmitting the amplified first coaxial signal to the next-stage communication equipment; the first signal enhancement unit is used for amplifying the second coaxial signal transmitted by the receiving gating unit and then transmitting the amplified second coaxial signal to the previous-stage communication equipment; the first coaxial signal is a signal which is sent by the former-stage communication equipment connected with the light conversion equipment and is preprocessed by the first signal enhancement unit, and the second coaxial signal is a signal which is sent by the next-stage communication equipment connected with the light conversion equipment and is preprocessed by the second signal enhancement unit.
8. A control device for a light converting device, which is applied to the light converting device according to any one of claims 1 to 6, the device comprising:
the acquisition module is used for acquiring a switch control signal according to the current service scene; the current service scene comprises a test scene and a non-test scene;
the control module is used for controlling the gating module to be selectively connected with the test equipment through the optical conversion module or to be selectively connected with the next-level communication equipment through the signal enhancement module according to the switch control signal;
the gating module comprises a transmitting gating unit and a receiving gating unit; the power supply module is respectively connected with the transmitting gating unit and the receiving gating unit;
the control module is specifically configured to control the transmitting gating unit and the receiving gating unit according to the switch control signal, and select to be connected with the test device through the optical conversion module, or select to be connected with the next-stage communication device through the signal enhancement module; wherein the signal enhancement module comprises a first signal enhancement unit and a second signal enhancement unit; the first signal enhancement unit is respectively connected with the optical conversion module and the second signal enhancement unit through the sending gating unit; the first signal enhancement unit is also connected with the optical conversion module and the second signal enhancement unit respectively through the receiving gating unit; the second signal enhancement unit is used for amplifying the first coaxial signal transmitted by the sending gating unit and transmitting the amplified first coaxial signal to the next-stage communication equipment; the first signal enhancement unit is used for amplifying the second coaxial signal transmitted by the receiving gating unit and then transmitting the amplified second coaxial signal to the previous-stage communication equipment; the first coaxial signal is a signal which is sent by the former-stage communication equipment connected with the light conversion equipment and is preprocessed by the first signal enhancement unit, and the second coaxial signal is a signal which is sent by the next-stage communication equipment connected with the light conversion equipment and is preprocessed by the second signal enhancement unit.
9. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method as claimed in claim 7.
10. A communication system comprising a previous communication device, a next communication device, and at least one light conversion device of any one of claims 1 to 6;
the former-stage communication equipment is connected with the next-stage communication equipment after cascading at least one light conversion equipment.
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| CN107426073A (en) * | 2017-08-08 | 2017-12-01 | 深圳市三旺通信技术有限公司 | The method and device that a kind of Controller Area Network BUS extends |
| CN210274089U (en) * | 2019-04-04 | 2020-04-07 | 南京杰德科技有限公司 | Optical fiber other end optical equipment connection state detection device |
| CN111983341A (en) * | 2020-07-15 | 2020-11-24 | 中国工程物理研究院应用电子学研究所 | Signal preprocessing module for strong electromagnetic pulse shielding effectiveness test and system thereof |
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Address after: 701, 7th Floor, Building 6, Courtyard 8, Kegu 1st Street, Beijing Economic and Technological Development Zone, Daxing District, Beijing, 100176 Patentee after: Beijing Tasson Technology Ltd. Address before: Room 701, 7 / F, building 6, courtyard 8, KEGU 1st Street, Beijing Economic and Technological Development Zone, Daxing District, Beijing 100176 Patentee before: BEIJING TASSON TECHNOLOGY Ltd. |