CN111031296B - Single-fiber and double-fiber transmission mode self-adaptive system of optical transceiver - Google Patents
Single-fiber and double-fiber transmission mode self-adaptive system of optical transceiver Download PDFInfo
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- CN111031296B CN111031296B CN201911298914.XA CN201911298914A CN111031296B CN 111031296 B CN111031296 B CN 111031296B CN 201911298914 A CN201911298914 A CN 201911298914A CN 111031296 B CN111031296 B CN 111031296B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/22—Adaptations for optical transmission
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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
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
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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
- H04B10/40—Transceivers
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Abstract
The invention discloses a single-fiber and double-fiber transmission mode self-adaptive system of an optical transceiver, which comprises a single-fiber and double-fiber data transmission channel module; a channel gating module; MCU monitoring module and local storage module. The invention can self-adaptively switch the single-fiber and double-fiber transmission modes according to the layout condition of an implementation field, and avoids replacing optical transceiver modules due to different environmental wiring optical fibers. The invention adds a specific circuit and a software algorithm on the basis of the principle of a general optical transmitter and receiver to realize the transmission mode self-adaptation. Meanwhile, the invention can also realize the information reading of the display terminal and the local storage application.
Description
Technical Field
The invention belongs to the field of signal transmission of optical transceivers, and particularly relates to a single-fiber and double-fiber transmission mode self-adaptive system of an optical transceiver.
Background
The application of optical transceiver video transmission is becoming more and more widespread, and optical transceivers on the market currently support single-fiber (single-mode or multi-mode) transmission or dual-fiber (single-mode or multi-mode) transmission modes. However, such an optical transceiver cannot be completely compatible with a fixed layout mode of a single fiber or a dual fiber in a field, which results in that the application of the optical transceiver is not wide and flexible enough.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide an optical transceiver single-fiber and double-fiber transmission mode adaptive system to solve the problem that the optical transceiver in the prior art cannot be completely compatible with a single-fiber and double-fiber fixed mode.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
an optical transceiver single-fiber and double-fiber transmission mode self-adaptive system comprises a data transmission channel module, a channel gating module and an MCU monitoring module;
one end of the data transmission channel module is connected with the channel gating module, and the other end of the data transmission channel module is connected with the MCU monitoring module;
the MCU monitoring module is also connected with the channel gating module.
Further, the data transmission channel module comprises a high-speed video data channel and a low-speed communication control channel; and the two ends of the high-speed video data channel and the low-speed communication control channel are respectively connected with the channel gating module and the MCU monitoring module.
Further, the system also comprises a light module and a local storage module; one end of the optical module is connected with the high-speed video data channel, and the other end of the optical module is connected with the MCU monitoring module; one end of the local storage module is connected with the low-speed communication control channel, and the other end of the local storage module is connected with the MCU monitoring module.
Further, the low-speed communication control channel comprises a remote low-speed communication control channel and a local low-speed communication control channel.
Furthermore, the channel gating module is an MOS tube switching circuit.
Furthermore, the channel gating module and the MCU monitoring module are simultaneously connected with a signal source.
Compared with the prior art, the invention has the following beneficial effects:
the invention solves the problem that the current optical transmitter and receiver can not adapt to the switching of single fiber and double fiber by adding the structures of a channel gating module, an MCU monitoring module and the like in the existing optical transmitter and receiver; detecting the transmission state of the double fibers in real time through the MCU, and adjusting the low-speed channel in real time to realize the self-adaptive function; and an MCU module is added to realize state detection, judge control, simulate the signal of double-fiber reverse transmission to perform data interaction with a source end, and perform real-time reading and writing on local storage to achieve the effect of simulating double-fiber interaction.
Drawings
FIG. 1 is a block diagram of the system of the present invention.
Detailed Description
The working principle and technical scheme of the present invention are further described in detail with reference to the drawings and the specific embodiments of the specification.
As shown in fig. 1, an optical transceiver single-fiber and dual-fiber transmission mode adaptive system includes a data transmission channel module, a channel gating module, an MCU monitoring module, an optical module, and a local storage module; the data transmission channel module comprises a high-speed video data channel and a low-speed communication control channel
One end of the high-speed video data channel is connected with the channel gating module, and the other end of the high-speed video data channel is connected with the optical module;
one end of the low-speed communication control channel is connected with the channel gating module, and the other end of the low-speed communication control channel is connected with the local storage module.
One end of the optical module and one end of the local storage module are simultaneously connected with the MCU monitoring module.
The low-speed communication control channel comprises a remote transmission low-speed communication control channel and a local low-speed communication control channel.
The channel gating module is an MOS tube switching circuit.
The channel gating module and the MCU monitoring module are simultaneously connected with a signal source.
The data transmission channel module comprises a high-speed video data channel and a low-speed communication control channel, wherein the high-speed video data channel is the same as the video data channel of the general optical transceiver, and the low-speed communication control channel is divided into a remote transmission channel and a local channel and is used for reading information before video transmission, including EDID information, a display terminal equipment number and the like;
and the channel gating module is connected with the transmission data channel by utilizing the switching characteristic of the MOS and the conduction characteristic of the recessive diode and is used for switching the low-speed communication control signal channel.
The MCU monitoring module is added with an MCU control system on the basis of the traditional optical transmitter and receiver module and is used for monitoring the on-off state of a double-fiber signal in real time, converting information acquired by the optical module into a control instruction and transmitting the instruction to the gating module; and meanwhile, when a single-fiber mode is detected, the data and format of double-fiber reverse transmission are simulated to communicate with the source end.
And the local storage module is respectively connected with the MCU monitoring module and the single-fiber data transmission channel and is used for carrying out low-speed information interaction with the source end in a single-fiber transmission mode.
The MCU detects the state of the front-end SFP module of the optical transceiver, judges the physical connection characteristic of the optical fiber, opens the channel 2 in a single-fiber mode, simulates a signal transmitted back by the RX end of the optical transceiver, performs data interaction before display by the MCU of the TX end and the source end, and simultaneously changes the information reading address of the source end from the RX side to a local storage end of the TX side.
And a local storage module is added for storing all conventional display data, and the conventional requirements of a display end can be locally met in a single-line mode.
When the local storage module aims at the abnormal display data, the data can be read from the display end through the MCU at the TX side and written into the local storage device in real time.
The MCU module is connected with the optical transceiver, the gating module and the local storage module, judges the current state through a certain AND-OR relation by sampling an optical fiber plugging signal state A, a signal transmission state B and a third party input C of the optical module, controls a gating 1 channel if the current state is a double-fiber mode, and performs low-speed reverse transmission interaction on data communication between the display end and the source end through one of double fibers. And the interactive suspension of the MCU and the source end is invalid.
When the low-speed signal is pulled out and a high-speed single fiber is left, the MCU controls the gating 2 channel after detection and judgment, the analog display end sends a request command to the source end in a signal format reversely transmitted, the signal format reversely transmitted by the double fibers is switched to the local storage unit, and after interaction, the high-speed data signal is displayed.
Under the condition that the current display is not supported, the MCU can read the information of the display end and write the information into the local storage unit, simulate the information reversely transmitted by the display end and the sending request command of the source end again, read the local information again, and the source end outputs an accurate high-speed signal.
The local storage module is connected with the data transmission channel and is used for displaying standard data information of the terminal interacted with the source terminal in a single-fiber mode;
the local storage module and the MCU control module are used for writing in data information required by a field in real time, reading information such as EDID (extended display identification data) and the like of a field display end through the MCU, writing in the local module and using the local module only in a single-fiber transmission mode.
In this embodiment, when the single-fiber mode is selected, the system rejects the signal transmitted by the dual-fiber of the corresponding optical transceiver, and the information processing is based on the local storage information and the analog interaction. The local storage information can be timely adjusted and written according to the field requirement, and the local storage information is written in by one key in a key pressing mode. When the dual-fiber reverse transmission mode is selected, the system ignores the data information stored locally, and the information reversely transmitted by the optical module is taken as the standard.
The invention is based on the design principle of a general optical transmitter and receiver, and the data transmission channel module, the channel gating module, the MCU monitoring module and the local storage module are added at the TX side to realize single-fiber single-mode signal transmission and single-fiber double-fiber self-adaptive switching.
It will be appreciated by those skilled in the art that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of or equivalence to the invention are intended to be embraced therein.
Claims (2)
1. An optical transceiver single-fiber and double-fiber transmission mode self-adaptive system is characterized by comprising an MUC monitoring module, wherein the MUC monitoring module is respectively connected with an optical module, a local storage module, a gating module and a signal source,
the MCU monitoring module is used for monitoring the on-off state of the double-fiber signal in real time, converting the information acquired by the optical module into a control instruction and transmitting the instruction to the gating module; the data and format used for simulating double-fiber reverse transmission when a single-fiber mode is detected are used for communicating the signal source end;
the method comprises the steps that an MCU monitoring module detects the state of an optical module, when in a single-fiber mode, a low-speed communication control channel is opened, a signal transmitted back by an RX end of an optical transceiver is simulated, the MCU monitoring module of the TX end performs data interaction before display with a signal source end, and meanwhile, an information reading address of the signal source end is changed from the RX end to a local storage module of the TX end;
the MCU monitoring module judges the current state by sampling an optical fiber plugging signal state A, a signal transmission state B and a third party input C of the optical module, when in a double-fiber mode, a high-speed video data channel is opened, and data communication between a display end and a signal source end of the optical module carries out low-speed reverse transmission interaction through one of double fibers;
the local storage module is connected with the single-fiber data transmission channel and used for carrying out low-speed information interaction with the signal source end in a single-fiber transmission mode; the local storage module is used for storing all conventional display data in a single-fiber mode, and the local storage module reads the data of the unconventional display data at the display end of the optical module through the MCU monitoring module at the TX end and writes the data into the unconventional display data in real time.
2. The optical transceiver single-fiber and dual-fiber transmission mode adaptive system according to claim 1, wherein the channel gating module is a MOS transistor switching circuit.
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| CN201911298914.XA CN111031296B (en) | 2019-12-17 | 2019-12-17 | Single-fiber and double-fiber transmission mode self-adaptive system of optical transceiver |
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| CN201911298914.XA CN111031296B (en) | 2019-12-17 | 2019-12-17 | Single-fiber and double-fiber transmission mode self-adaptive system of optical transceiver |
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| CN111031296B true CN111031296B (en) | 2021-05-14 |
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| US6810080B1 (en) * | 1997-07-31 | 2004-10-26 | Lsi Logic Corporation | Method and apparatus for decoding video data |
| CN1577609A (en) * | 2003-07-04 | 2005-02-09 | 三星电子株式会社 | Method and memory system having mode selection between dual data strobe mode and single data strobe mode with inversion |
| CN1784073A (en) * | 2004-12-02 | 2006-06-07 | 华为技术有限公司 | Switching method for keeping continuous communication in mobile communication system |
| CN101485133A (en) * | 2006-06-23 | 2009-07-15 | 松下电器产业株式会社 | Retransmission of data in a multiple input multiple output (MIMO) system |
| CN101751361A (en) * | 2008-12-16 | 2010-06-23 | 联想(北京)有限公司 | Switchover method for controlling data transmission interface in mobile terminal and terminal equipment |
| CN202798757U (en) * | 2012-09-27 | 2013-03-13 | 刘静 | Dual mode switch |
| CN106470070A (en) * | 2016-09-28 | 2017-03-01 | 杭州迪普科技股份有限公司 | The method and apparatus of detection Link State |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203645781U (en) * | 2013-12-11 | 2014-06-11 | 大连世安科技股份有限公司 | Video and data automatic switching optical transceiver |
| CN107529689A (en) * | 2017-08-26 | 2018-01-02 | 康体佳智能科技（深圳）有限公司 | A kind of power-line carrier communication method of intelligent selection signalling channel |
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6810080B1 (en) * | 1997-07-31 | 2004-10-26 | Lsi Logic Corporation | Method and apparatus for decoding video data |
| CN1577609A (en) * | 2003-07-04 | 2005-02-09 | 三星电子株式会社 | Method and memory system having mode selection between dual data strobe mode and single data strobe mode with inversion |
| CN1784073A (en) * | 2004-12-02 | 2006-06-07 | 华为技术有限公司 | Switching method for keeping continuous communication in mobile communication system |
| CN101485133A (en) * | 2006-06-23 | 2009-07-15 | 松下电器产业株式会社 | Retransmission of data in a multiple input multiple output (MIMO) system |
| CN101751361A (en) * | 2008-12-16 | 2010-06-23 | 联想(北京)有限公司 | Switchover method for controlling data transmission interface in mobile terminal and terminal equipment |
| CN202798757U (en) * | 2012-09-27 | 2013-03-13 | 刘静 | Dual mode switch |
| CN106470070A (en) * | 2016-09-28 | 2017-03-01 | 杭州迪普科技股份有限公司 | The method and apparatus of detection Link State |
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