CN112230353A - Optical fiber adapter based on FPGA and use method thereof - Google Patents
Optical fiber adapter based on FPGA and use method thereof Download PDFInfo
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- CN112230353A CN112230353A CN202011193102.1A CN202011193102A CN112230353A CN 112230353 A CN112230353 A CN 112230353A CN 202011193102 A CN202011193102 A CN 202011193102A CN 112230353 A CN112230353 A CN 112230353A
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4274—Electrical aspects
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4274—Electrical aspects
- G02B6/428—Electrical aspects containing printed circuit boards [PCB]
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4285—Optical modules characterised by a connectorised pigtail
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Abstract
The invention discloses an optical fiber adapter based on FPGA and a use method thereof, wherein the optical fiber adapter comprises the following components: a housing; the PCB board is arranged in the shell; the FPGA device is arranged on the PCB and is provided with a plurality of data receiving channels, a plurality of data conversion channels and a test interface, and the test interface is used for being connected with a tester; the PHY module is electrically connected with the FPGA device; the optical fiber data interface is in signal connection with the PHY module and is used for being connected with a device to be tested; the plurality of optical fiber data interfaces are respectively in signal connection with the plurality of data receiving channels through the PHY module, and in a working state, data signals input by the optical fiber data interfaces are converted into data signals matched with the testing interfaces after passing through the corresponding data receiving channels and the data conversion channels, so that the problem of inconvenient field testing data conversion of the intelligent substation can be solved.
Description
Technical Field
The invention relates to an optical fiber adapter based on an FPGA and a using method thereof, belonging to the technical field of optical fiber adapters.
Background
The intelligent substation is widely adopted in a power grid, so that the existing new technology can be widely applied to the substation, compared with the traditional substation, the importance of the communication technology in the operation and maintenance work of secondary intelligent equipment of the intelligent substation needs to be continuously improved, and particularly, various optical fiber interfaces are complicated in types due to the fact that the unified networking standard does not exist, and great inconvenience is brought to the maintenance work.
Because the intelligent substation adopts a large number of optical fibers, when the optical fibers are connected with secondary intelligent equipment, various optical fiber jumpers appear due to the fact that optical fiber interfaces of different equipment manufacturers are different, such as common optical fiber jumpers of different types including ST-ST, ST-LC, ST-FC, LC-LC and the like. When the secondary intelligent equipment is regularly checked, because the testing instrument generally only has one optical signal output interface, such as a common LC or ST optical output interface, if the fiber-skipping type configured by the testing instrument is not complete, or the fiber-skipping length is too short, the fiber-skipping is usually performed through a special flange. However, one flange can only be used for connecting two different jump fibers, and the periodical inspection of the secondary intelligent device is often influenced by the reasons that the flange is not provided, the model of the flange is not complete, or the model of the flange provided is not complete, or the model of the jump fiber provided is not complete, and the like.
In addition, although the traditional optical fiber adapter has the problem that one path of light is converted into multiple paths of light through the optical splitter, the optical fiber interface is single, the optical line interface output by the same optical fiber after being split by the optical splitter cannot meet the functions of different interfaces required by different field debugging, so that more debugging equipment is needed during field debugging, the types of original pieces to be prepared are various, and manpower and material resources are wasted.
Disclosure of Invention
Based on the above, the invention provides an optical fiber adapter based on an FPGA and a use method thereof, so as to solve various switching problems caused by different switching requirements of various optical fiber interfaces when the conventional secondary intelligent equipment is regularly checked.
The technical scheme of the invention is as follows: an FPGA-based fiber optic adapter, wherein the adapter comprises:
a housing;
a PCB board mounted in the housing;
the FPGA device is arranged on the PCB and is provided with a plurality of data receiving channels, a plurality of data conversion channels and a test interface, and the test interface is used for being connected with a tester;
the PHY module is electrically connected with the FPGA device;
the optical fiber data interface is in signal connection with the PHY module and is used for being connected with a device to be tested;
the plurality of optical fiber data interfaces are respectively in signal connection with the plurality of data receiving channels through the PHY module, and in a working state, data signals input by the optical fiber data interfaces are converted into data signals matched with the test interface after passing through the corresponding data receiving channels and the data conversion channels.
In one example, the test interfaces are an ST fiber interface and an LC fiber interface, and the fiber data interface includes two sets of interfaces, one set of interfaces corresponds to the ST fiber interface, and the other set of interfaces corresponds to the LC fiber interface.
In one example, the optical fiber data interfaces in the two groups of interfaces include any of FC, LC, ST, SC optical fiber interfaces.
In one example, each of the two groups of fiber optic data interfaces includes four fiber optic interfaces FC, LC, ST, SC.
In one example, the test interface is an ST optical fiber interface, and the optical fiber data interface includes any of FC, LC, ST, and SC optical fiber interfaces.
In one example, the test interface is an LC fiber interface, and the fiber data interface includes any of FC, LC, ST, and SC fiber interfaces.
In one example, the optical fiber data interfaces include four optical fiber interfaces of FC, LC, ST, SC.
In one example, the PHY module is a hundred mega PHY.
The invention also provides a using method of the fiber adapter based on the FPGA, wherein the method comprises the following steps:
selecting the optical fiber data interface of the corresponding type to be connected with the data interface according to the data interface of the device to be tested;
selecting the corresponding type of test interface to be connected with the data interface according to the data interface of the tester;
and a data signal sent by the device to be tested is input into the FPGA device through the optical fiber data interface, and is input into the tester through the test interface after being converted.
The invention has the beneficial effects that: in the adapter, because the multiple optical fiber data interfaces have multiple optical fiber interfaces, different optical fiber interface devices of the secondary equipment of the intelligent substation can be flexibly matched, the problem that the optical fiber interfaces of the secondary equipment of the intelligent substation are various and need frequent switching can be effectively solved, debugging equipment needed due to different optical fiber interfaces of field equipment is reduced, and the adapter is simple and flexible to operate.
Drawings
FIG. 1 is a schematic diagram of an FPGA-based fiber optic adapter;
fig. 2 is a schematic diagram of an application of the fiber optic adapter based on the FPGA.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed as broadly as the present invention is capable of modification in various respects, all without departing from the spirit and scope of the present invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1, an optical fiber adapter based on an FPGA according to an embodiment of the present invention includes a housing, a PCB, an FPGA device, a PHY module, and an optical fiber data interface.
The shell is mainly used for mounting parts such as a PCB (printed circuit board), an FPGA (field programmable gate array) device, a PHY (physical layer) module, an optical fiber data interface and the like. The PCB board is installed in the shell. The FPGA device is arranged on the PCB and is provided with a plurality of data receiving channels, a plurality of data conversion channels and a test interface, and the test interface is used for being connected with a tester. The PHY module is electrically connected with the FPGA device. The optical fiber data interface is in signal connection with the PHY module and is used for being connected with a device to be tested, wherein the plurality of optical fiber data interfaces are in signal connection with the plurality of data receiving channels through the PHY module respectively, and in a working state, data signals input by the optical fiber data interfaces are converted into data signals matched with the testing interface after passing through the corresponding data receiving channels and the data conversion channels. The PHY module in this embodiment may be a hundred megabyte PHY.
The FPGA has the following characteristics: firstly, the flexibility, the reprogrammability and the customization are realized; the maintenance is easy, and the transplantation, the upgrade or the expansion are convenient; NRE cost is reduced, and the time of the product on the market is accelerated; and the system supports abundant peripheral interfaces and can be configured according to requirements. Secondly, the parallelism, the higher speed and the higher bandwidth are realized; can meet the requirement of real-time processing. Thirdly, integration, more interfaces and protocol support; various termination matching elements can be integrated into the device, so that the BOM cost is effectively reduced; and board-level wiring is reduced, and the difficulty in layout and wiring is effectively reduced.
FPGA data receiving and conversion have 8 groups of data channels, FPGA is mainly used for connecting various optical fiber interfaces through PHY, ST-FC data interface mutual conversion, ST-LC data interface mutual conversion, ST-ST data interface mutual conversion, ST-SC data interface mutual conversion, LC-FC data interface mutual conversion, LC-LC data interface mutual conversion, LC-ST data interface mutual conversion and LC-SC data interface mutual conversion can be realized.
In the adapter, because the multiple optical fiber data interfaces have multiple optical fiber interfaces, different optical fiber interface devices of the secondary equipment of the intelligent substation can be flexibly matched, the problem that the optical fiber interfaces of the secondary equipment of the intelligent substation are various and need frequent switching can be effectively solved, debugging equipment needed due to different optical fiber interfaces of field equipment is reduced, and the adapter is simple and flexible to operate.
In one embodiment, the test interfaces are an ST fiber optic interface and an LC fiber optic interface, and the fiber optic data interface includes two sets of interfaces, one set of interfaces corresponding to the ST fiber optic interface and the other set of interfaces corresponding to the LC fiber optic interface. Specifically, two groups of data conversion interfaces are arranged on the FPGA device, one group of data conversion interfaces can convert data into ST optical fiber signals, the other group of data conversion interfaces can convert data into LC optical fiber signals, and therefore the test requirements of an ST or LC tester are met, and the application range of the adapter is further widened.
The optical fiber data interfaces in the two groups of interfaces comprise any optical fiber interfaces of FC, LC, ST and SC. Preferably, each of the two sets of fiber optic data interfaces includes four fiber optic interfaces FC, LC, ST, SC. The conversion data types are shown in table 1:
TABLE 1 fibre-optic interface conversion table
In table 1, the 4 ST interfaces of the optical fiber adapters share one ST interface, and the 4 LC interfaces of the optical fiber adapters share one LC interface.
In one embodiment, the test interface may be only an ST fiber optic interface, and the fiber optic data interface may include any of FC, LC, ST, SC fiber optic interfaces. Preferably, the optical fiber data interface comprises four optical fiber interfaces of FC, LC, ST and SC.
In one embodiment, the test interface may be a LC only fiber optic interface, and the fiber optic data interface may include any of FC, LC, ST, SC fiber optic interfaces. Preferably, the optical fiber data interface comprises four optical fiber interfaces of FC, LC, ST and SC.
Referring to fig. 2, a method for using an FPGA-based fiber adapter according to an embodiment of the present invention includes:
1. selecting an optical fiber data interface of a corresponding type to be connected with the data interface of the device to be tested;
2. selecting a test interface of a corresponding type to be connected with the data interface of the tester;
3. the data signal sent by the device to be tested is input into the FPGA device through the optical fiber data interface, and is input into the tester through the test interface after being converted.
Specifically, the optical fiber adapter and a device to be tested of the intelligent substation can be connected through FC, LC, ST and SC optical fiber interfaces, the device to be tested transmits data to the FC, LC, ST and SC optical fiber interfaces of the multifunctional optical fiber adapter, the multifunctional optical fiber adapter transmits the data to the field programmable gate array FPGA through hundred mega PHY, the field programmable gate array FPGA analyzes and processes the data, and transmits the data to the ST or LC optical fiber interface of the multifunctional optical fiber adapter through hundred mega PHY, and then the data is sent to a tester with ST or LC. Therefore, various switching problems caused by different switching requirements of various optical fiber interfaces during the periodic inspection of the secondary intelligent equipment are solved, the debugging work of field debugging personnel is facilitated, and a large amount of financial resources and material resources are reduced.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (9)
1. An FPGA-based fiber optic adapter, wherein the adapter comprises:
a housing;
a PCB board mounted in the housing;
the FPGA device is arranged on the PCB and is provided with a plurality of data receiving channels, a plurality of data conversion channels and a test interface, and the test interface is used for being connected with a tester;
the PHY module is electrically connected with the FPGA device;
the optical fiber data interface is in signal connection with the PHY module and is used for being connected with a device to be tested;
the plurality of optical fiber data interfaces are respectively in signal connection with the plurality of data receiving channels through the PHY module, and in a working state, data signals input by the optical fiber data interfaces are converted into data signals matched with the test interface after passing through the corresponding data receiving channels and the data conversion channels.
2. The FPGA-based fiber optic adapter of claim 1, wherein the test interfaces are an ST fiber optic interface and an LC fiber optic interface, and the fiber optic data interface comprises two sets of interfaces, one set of interfaces corresponding to the ST fiber optic interface and the other set of interfaces corresponding to the LC fiber optic interface.
3. The FPGA-based fiber optic adapter of claim 2, wherein the fiber optic data interfaces of said two sets of interfaces comprise any of the fiber optic interfaces FC, LC, ST, SC.
4. The FPGA-based fiber optic adapter of claim 3, wherein each of said two sets of fiber optic data interfaces comprises four of FC, LC, ST, SC fiber optic interfaces.
5. The FPGA-based fiber optic adapter of claim 1, wherein the test interface is an ST fiber optic interface, and the fiber optic data interface comprises any of FC, LC, ST, and SC fiber optic interfaces.
6. The FPGA-based fiber optic adapter of claim 1, wherein the test interface is an LC fiber optic interface and the fiber optic data interface comprises any of FC, LC, ST, and SC fiber optic interfaces.
7. The FPGA-based fiber optic adapter of claim 5 or 6, wherein the fiber optic data interface comprises four of FC, LC, ST, SC.
8. The FPGA-based fiber optic adapter of claim 1, wherein the PHY module is a hundred mega PHY.
9. The method for using the FPGA-based fiber optic adapter of any one of claims 1-8,
the method comprises the following steps:
selecting the optical fiber data interface of the corresponding type to be connected with the data interface according to the data interface of the device to be tested;
selecting the corresponding type of test interface to be connected with the data interface according to the data interface of the tester;
and a data signal sent by the device to be tested is input into the FPGA device through the optical fiber data interface, and is input into the tester through the test interface after being converted.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011193102.1A CN112230353A (en) | 2020-10-30 | 2020-10-30 | Optical fiber adapter based on FPGA and use method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011193102.1A CN112230353A (en) | 2020-10-30 | 2020-10-30 | Optical fiber adapter based on FPGA and use method thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104901741A (en) * | 2015-04-30 | 2015-09-09 | 国家电网公司 | Power system intelligent station fiber interface conversion apparatus |
| CN104917705A (en) * | 2015-06-18 | 2015-09-16 | 国家电网公司 | Network message management method of intelligent substation process layer switch |
| CN205142243U (en) * | 2015-11-26 | 2016-04-06 | 贵州电网有限责任公司六盘水供电局 | Handheld network data isolator that intelligent substation used |
| CN208367265U (en) * | 2018-07-02 | 2019-01-11 | 国网湖南省电力有限公司 | A kind of multifunctional light interface convertor |
-
2020
- 2020-10-30 CN CN202011193102.1A patent/CN112230353A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104901741A (en) * | 2015-04-30 | 2015-09-09 | 国家电网公司 | Power system intelligent station fiber interface conversion apparatus |
| CN104917705A (en) * | 2015-06-18 | 2015-09-16 | 国家电网公司 | Network message management method of intelligent substation process layer switch |
| CN205142243U (en) * | 2015-11-26 | 2016-04-06 | 贵州电网有限责任公司六盘水供电局 | Handheld network data isolator that intelligent substation used |
| CN208367265U (en) * | 2018-07-02 | 2019-01-11 | 国网湖南省电力有限公司 | A kind of multifunctional light interface convertor |
Non-Patent Citations (1)
| Title |
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| 蒋政权: "一种适用于继电保护测试的多功能光纤适配器研究与应用", 《机电信息》 * |
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Application publication date: 20210115 |