CN220173316U - Mixed video optical transceiver - Google Patents
Mixed video optical transceiver Download PDFInfo
- Publication number
- CN220173316U CN220173316U CN202321519820.2U CN202321519820U CN220173316U CN 220173316 U CN220173316 U CN 220173316U CN 202321519820 U CN202321519820 U CN 202321519820U CN 220173316 U CN220173316 U CN 220173316U
- Authority
- CN
- China
- Prior art keywords
- video
- input
- signals
- optical
- assembly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 82
- 239000013307 optical fiber Substances 0.000 claims abstract description 63
- 238000006243 chemical reaction Methods 0.000 claims description 31
- 230000005540 biological transmission Effects 0.000 description 14
- 238000004891 communication Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 230000006978 adaptation Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 230000003044 adaptive effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Abstract
The utility model discloses a mixed video optical transceiver, which comprises: a transmitting device and a receiving device; the transmitting device and the receiving device are connected through an optical fiber; the transmitting apparatus includes: the system comprises a multi-video source input unit, a video switching unit, a control unit and a video mixing unit; the multi-video source input unit sends video signals in various formats to the video switching unit; the video switching unit switches the video signals with various formats sent by the multi-video source input unit in a differential mode according to the instruction of the control unit and transmits the video signals to the video mixing unit; the video mixing unit converts the signals transmitted by the video switching unit into optical signals with different wavelengths and sends the optical signals to the receiving device through an optical fiber; the receiving device analyzes the optical signals received through the optical fibers to obtain a plurality of video signals. The mixed video optical transceiver provided by the utility model mixes a plurality of video signals and sends out the mixed video signals by adopting the same optical fiber.
Description
Technical Field
The utility model relates to the technical field of video transmission, in particular to a hybrid video optical transceiver.
Background
At present, a plurality of photoelectric conversion system (optical transceiver) products exist on the market, a video optical transceiver converts video or graphic signals into light and transmits the light through an optical fiber, the optical transceiver solves the problem of loss caused by long-distance transmission in video image transmission, the transmission distance can be increased, the transmission distance can reach tens of kilometers by adopting a single-mode optical fiber, and at present, with the development of the optical fiber, 10Gbps ten-megameters optical fiber, even 40G optical fiber and 100G optical fiber, the optical transceiver becomes a main flow application mode of high-definition video image transmission.
The main problems of the products in the market at present are as follows:
(1) Photoelectric conversion of a single image source can only be completed, the interfaces are few, and cameras with all different interfaces and protocols cannot be adapted, such as Cameralink, PAL, SDI mixed video.
(2) The transmission delay is large. The protocol processing is adopted in the general optical transceiver, so that software delay is increased, the transmitted image delay is large, and the method is not suitable for being applied to scenes with particularly high real-time requirements.
With the development of communication technology and Sensor technology, more and more image sensors and sensors can output high-resolution images with different systems, the data volume of video images is larger and larger, 4K/8K images are widely applied to the fields of industry and automation, and the hybrid video optical transmitter and receiver is used as a new technology of broadband optical fiber transmission and is increasingly applied to the field of video images, so that the hybrid video optical transmitter and receiver has great market demands and market prospects.
Most of the video image optical terminals currently available in the market are single video source optical terminals, such as an audio optical terminal, an HD-SDI optical terminal, a VGA optical terminal, a DVI optical terminal, an HDMI optical terminal, a data optical terminal, a telephone optical terminal, an ethernet optical terminal, etc., and the working principle thereof is as follows: a single video image source is converted into a digital signal at the transmitting optical terminal side through protocol conversion or encoding and decoding, then is converted into light through photoelectric conversion, and then the light signal is received by the receiving optical terminal for demodulation, and then is converted into an original video image for output and display.
The prior art has the following defects:
(1) Video input does not enable adaptation of all different systems of video image sensors (or cameras)) and protocol adaptation. Video image sensors (or cameras) have various output interfaces and protocol types, such as analog cameras, digital cameras, and high-speed serial cameras, and cameras with different interfaces and systems are difficult to perform electro-optical conversion with uniform standards due to different electrical characteristics.
(2) The optical fiber output is generally in duplex mode, and multipath optical fibers are difficult to realize the application of the photoelectric slip ring of the moving platform.
Disclosure of Invention
The utility model aims to provide a hybrid video optical transceiver to solve the defects in the background technology.
In order to achieve the above object, the present utility model provides a hybrid video optical transmitter and receiver, comprising: a transmitting device and a receiving device;
the transmitting device and the receiving device are connected through an optical fiber;
the transmitting apparatus includes: the system comprises a multi-video source input unit, a video switching unit, a control unit and a video mixing unit;
the multi-video source input unit sends video signals in various formats to the video switching unit;
the video switching unit switches the video signals with various formats sent by the multi-video source input unit in a differential mode according to the instruction of the control unit and transmits the video signals to the video mixing unit;
the video mixing unit converts the signals transmitted by the video switching unit into optical signals with different wavelengths and sends the optical signals to the receiving device through an optical fiber;
the receiving device analyzes the optical signals received through the optical fibers to obtain a plurality of video signals.
Optionally, the multi-video source input unit includes: the device comprises a high-definition digital input assembly, a standard-definition digital input assembly, an analog video input assembly, a differential analog video input assembly and an optical fiber signal input assembly;
the output ends of the high-definition digital input assembly, the standard definition digital input assembly, the analog video input assembly, the differential analog video input assembly and the optical fiber signal input assembly are respectively connected with the video switching unit;
the high-definition digital input component inputs a high-definition digital video signal to the video switching unit, the standard-definition digital input component inputs a standard-definition digital video signal to the video switching unit, the analog video input component inputs an analog video signal to the video switching unit, the differential analog video input component inputs a differential analog video signal to the video switching unit, and the optical fiber signal input component inputs an optical fiber video signal to the video switching unit.
Optionally, the high-definition digital input assembly includes a plurality of high-definition digital signal input branches, each high-definition digital signal input branch includes a high-definition video cable equalizer, and an output end of the high-definition video cable equalizer is connected with an input end of the video switching unit;
the standard definition digital input assembly comprises a plurality of standard definition digital signal input branches, each standard definition digital signal input branch comprises a standard definition video cable equalizer, and the output end of the standard definition video cable equalizer is connected with the input end of the video switching unit.
Optionally, the analog video input component comprises an analog video signal input branch comprising a video analog signal-to-digital signal converter, a video conversion module and a standard definition video cable equalizer;
the input end of the video analog signal-digital signal converter is connected with the output end of the video conversion module;
the output end of the video conversion module is connected with the input end of the standard definition video cable equalizer;
the output end of the standard definition video cable equalizer is connected with the video switching unit;
the optical fiber signal input assembly comprises an optical signal input branch, the optical signal input branch comprises a photoelectric converter, and the output end of the photoelectric converter is connected with the video switching unit to convert a received optical signal into an electric signal and send the electric signal to the video switching unit.
Optionally, the control unit includes: a CAN controller and an FPGA controller;
the output end of the CAN controller is connected with the input end of the FPGA controller, and the output end of the FPGA controller is connected with the control end of the video mixing unit.
The CAN controller converts the received CAN signals into serial communication and sends the serial communication to the FPGA controller, and the FPGA controller controls the video switching unit to switch according to instructions of the CAN controller.
Optionally, the video mixing unit includes: a plurality of photoelectric converters and wavelength division multiplexers;
the input ends of the photoelectric converters are respectively connected with the video switching unit;
the output ends of the photoelectric converters are respectively connected with the wavelength division multiplexer;
the photoelectric converters respectively convert the video signals output by the video switching unit into optical signals with different wavelengths and send the optical signals to the wavelength division multiplexer;
the wavelength division multiplexer transmits a plurality of optical signals to the receiving device through an optical fiber.
Optionally, the sending device further includes a plurality of high-definition video output branches and a plurality of standard definition video output branches;
the high-definition video output branch circuit comprises a high-definition video differential driver, the input end of the high-definition video differential driver is connected with the video switching unit, and the high-definition video differential driver converts a signal output by the video switching unit into a high-definition digital signal to be output;
the standard definition video output branch circuit comprises a standard definition video differential driver, the input end of the standard definition video differential driver is connected with the video switching unit, and the standard definition video differential driver converts signals output by the video switching unit into standard definition digital signals and outputs the standard definition digital signals.
Optionally, the receiving device includes: the device comprises a wavelength division demultiplexer, a photoelectric conversion assembly, a display control assembly and a cable driving assembly;
the input end of the wavelength division demultiplexer is connected with the transmitting device through an optical fiber, and the output end of the wavelength division demultiplexer is connected with the input end of the photoelectric conversion component;
the input end of the display control assembly is connected with the output end of the photoelectric conversion assembly, and the output end is connected with the input end of the cable driving assembly;
and the output end of the cable driving assembly outputs the decoded video signal.
Optionally, the photoelectric conversion assembly comprises a plurality of branches, and each branch is provided with a photoelectric converter;
the input end of the photoelectric converter is connected with the wavelength division demultiplexer, and the output end of the photoelectric converter is connected with the display control assembly;
the photoelectric converter converts the optical signals decomposed by the wavelength division demultiplexer into electric signals and sends the electric signals to the display control assembly;
the display control assembly decodes the electric signals sent by the photoelectric converter and outputs the electric signals through the cable driving assembly.
Optionally, the cable drive assembly includes a plurality of standard definition digital signal branches and a plurality of high definition digital signal branches;
each standard definition digital signal branch comprises a standard definition video cable equalizer, and the input end of the standard definition video cable equalizer is connected with the display control assembly;
each high-definition digital signal branch circuit comprises a high-definition video cable equalizer, and the input end of the high-definition video cable equalizer is connected with the display control assembly.
The technical scheme of the utility model has the following beneficial technical effects:
1. the utility model mixes multiple video signals and adopts the same optical fiber to send out, which can support multiple signal types and has wide application range, meanwhile adopts the same optical fiber to send out, which can reduce the cost of laying optical fiber, and simultaneously adopts a single optical fiber to realize the application of the photoelectric slip ring of the motion platform.
2. The multi-video source input unit supports the input of high-definition digital video signals, standard definition digital video signals, analog video signals, differential analog video signals and optical fiber video signals, has wider application range and more adaptive interfaces and protocol types.
3. The CAN controller and the FPGA controller with excellent usability of the control unit have the advantages of high processing speed, quick response and low delay. The optical signals with various wavelengths are sent out by adopting the same optical fiber by adopting the wavelength division multiplexer, so that the optical fiber resource is saved.
Drawings
Fig. 1 is a schematic diagram of the overall structure of a hybrid video optical transceiver according to an embodiment of the present utility model;
fig. 2 is a schematic structural diagram of a transmitting device according to an embodiment of the present utility model;
fig. 3 is a schematic structural diagram of a receiving device according to an embodiment of the present utility model.
Detailed Description
The objects, technical solutions and advantages of the present utility model will become more apparent by the following detailed description of the present utility model with reference to the accompanying drawings. It should be understood that the description is only illustrative and is not intended to limit the scope of the utility model. In addition, in the following description, descriptions of well-known structures and techniques are omitted so as not to unnecessarily obscure the present utility model.
It will be apparent that the described embodiments are some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be noted that the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In addition, the technical features of the different embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.
At present, a plurality of photoelectric conversion system (optical transceiver) products exist on the market, a video optical transceiver converts video or graphic signals into light and transmits the light through an optical fiber, the optical transceiver solves the problem of loss caused by long-distance transmission in video image transmission, the transmission distance can be increased, the transmission distance can reach tens of kilometers by adopting a single-mode optical fiber, and at present, with the development of the optical fiber, 10Gbps ten-megameters optical fiber, even 40G optical fiber and 100G optical fiber, the optical transceiver becomes a main flow application mode of high-definition video image transmission.
The prior art has the following defects:
(1) Video input does not enable adaptation of all different systems of video image sensors (or cameras)) and protocol adaptation. Video image sensors (or cameras) have various output interfaces and protocol types, such as analog cameras, digital cameras, and high-speed serial cameras, and cameras with different interfaces and systems are difficult to perform electro-optical conversion with uniform standards due to different electrical characteristics.
(2) The optical fiber output is generally in duplex mode, and multipath optical fibers are difficult to realize the application of the photoelectric slip ring of the moving platform.
The utility model aims to protect a hybrid video optical transceiver, which is used for solving part of problems in the prior art.
Example 1
Fig. 1 shows an overall structure schematic diagram of a hybrid video optical transceiver according to an embodiment of the present utility model. Fig. 2 shows a schematic configuration of the transmitting apparatus.
Referring to fig. 1 and 2, the present utility model provides a hybrid video optical transceiver, comprising: a transmitting device and a receiving device;
the transmitting device and the receiving device are connected through an optical fiber; alternatively, the transmitting means and the receiving means include a housing, the shape of which is not limited, for example, rectangular, diamond, triangular, circular, etc. may be set according to a specific environment;
the transmitting apparatus includes: the system comprises a multi-video source input unit, a video switching unit, a control unit and a video mixing unit; the multi-video source input unit may support input of a plurality of video formats, for example, an optical signal, an analog video signal, a differential analog video signal, a high definition digital signal, a standard definition digital signal, and the like;
the multi-video source input unit sends video signals in various formats to the video switching unit; the video switching unit can adopt a differential switching chip, and the control unit can adopt a singlechip or an FPGA chip and the like;
the video switching unit switches the video signals with various formats sent by the multi-video source input unit in a differential mode according to the instruction of the control unit and transmits the video signals to the video mixing unit;
the video mixing unit converts the signals transmitted by the video switching unit into optical signals with different wavelengths and sends the optical signals to the receiving device through an optical fiber;
the receiving device analyzes the optical signals received through the optical fibers to obtain a plurality of video signals.
The mixed video optical transceiver provided by the embodiment mixes multiple video signals and sends out the mixed video signals by adopting the same optical fiber, so that the mixed video optical transceiver can support multiple signal types and has a wide application range, meanwhile, the cost of laying the optical fiber can be reduced by adopting the same optical fiber, and meanwhile, the application of the photoelectric slip ring of the motion platform can be realized by adopting a single optical fiber.
Example 2
Referring to fig. 2, as a preferred embodiment, the multi-video source input unit includes: the device comprises a high-definition digital input assembly, a standard-definition digital input assembly, an analog video input assembly, a differential analog video input assembly and an optical fiber signal input assembly;
the output ends of the high-definition digital input assembly, the standard definition digital input assembly, the analog video (PAL) input assembly, the differential analog video input assembly and the optical fiber signal input assembly are respectively connected with the video switching unit;
the high-definition digital input component inputs a high-definition digital video signal to the video switching unit, the standard-definition digital input component inputs a standard-definition digital video signal to the video switching unit, the analog video input component inputs an analog video signal to the video switching unit, the differential analog video input component inputs a differential analog video signal to the video switching unit, and the optical fiber signal input component inputs an optical fiber video signal to the video switching unit.
As a preferred embodiment, the high-definition digital input assembly includes a plurality of high-definition digital signal input branches, each high-definition digital signal input branch includes a high-definition video cable equalizer, and an output end of the high-definition video cable equalizer is connected to an input end of the video switching unit;
as a preferred embodiment, the standard definition digital input assembly includes a plurality of standard definition digital signal input branches, each standard definition digital signal input branch includes a standard definition video cable equalizer, and an output end of the standard definition video cable equalizer is connected to an input end of the video switching unit.
As a preferred embodiment, the analog video input assembly includes an analog video signal input branch including a video analog signal-to-digital signal converter, a video conversion module, and a standard definition video cable equalizer;
the output end of the video analog signal-digital signal converter is connected with the input end of the video conversion module;
the output end of the video conversion module is connected with the input end of the standard definition video cable equalizer;
the output end of the standard definition video cable equalizer is connected with the video switching unit;
the optical fiber signal input assembly comprises an optical signal input branch, the optical signal input branch comprises a photoelectric converter, and the output end of the photoelectric converter is connected with the video switching unit to convert a received optical signal into an electric signal and send the electric signal to the video switching unit.
The differential analog video input assembly comprises an operational amplifier, a video analog signal-digital signal converter, a video conversion module and a high-definition video encoder;
the output end of the operational amplifier is connected with the input end of the video analog signal-digital signal converter;
the output end of the video analog signal-digital signal converter is connected with the input end of the video conversion module;
the output end of the video conversion module is connected with the input end of the standard definition video cable equalizer;
and the output end of the standard definition video cable equalizer is connected with the video switching unit.
The multi-video source input unit provided by the embodiment supports the input of high-definition digital video signals, standard definition digital video signals, analog video signals, differential analog video signals and optical fiber video signals, has wider application range and more adaptive interfaces and protocol types.
Example 3
Referring to fig. 2, as a preferred embodiment, the control unit includes: a CAN controller and an FPGA controller;
the output end of the CAN controller is connected with the input end of the FPGA controller, and the output end of the FPGA controller is connected with the control end of the video mixing unit.
The CAN controller converts the received CAN signals into serial communication and sends the serial communication to the FPGA controller, and the FPGA controller controls the video switching unit to switch according to instructions of the CAN controller.
The FPGA controller mainly completes control of the video switching unit and analyzes protocol instructions of the CAN controller module, and the FPGA adopts a high-performance 7-series FPGA XC7K325T of XILINX to complete complex control and supplement algorithm functions, so that the video switching unit has extremely low delay and quick response, and LVDS differential video is subjected to lossless switching.
The CAN controller mainly completes the CAN communication function with the main control unit. Bus communication is realized by adopting an STM32 singlechip integrated with a CAN controller.
STM32F407 is a high performance microcontroller developed by ST (schematic semiconductor). The chip has the following characteristics: the 32-bit high-performance ARM Cortex-M4 processor supports clocks up to 168Mhz, 144 pins and I/O ports, has three low-power consumption modes of sleep, stop and standby, has up to 17 communication serial ports, and adopts a capacitive isolation type CAN bus transceiver ISO1050 for CAN interface driving.
The video mixing unit includes: a plurality of photoelectric converters and wavelength division multiplexers; referring to fig. 2, the number of photoelectric converters is preferably 4;
the input ends of the photoelectric converters are respectively connected with the video switching unit;
the output ends of the photoelectric converters are respectively connected with the wavelength division multiplexer;
the photoelectric converters respectively convert the video signals output by the video switching unit into optical signals with different wavelengths and send the optical signals to the wavelength division multiplexer;
the wavelength division multiplexer transmits a plurality of optical signals to the receiving device through an optical fiber.
The transmitting device also comprises a plurality of high-definition video output branches and a plurality of standard definition video output branches;
the high-definition video output branch circuit comprises a high-definition video differential driver, the input end of the high-definition video differential driver is connected with the video switching unit, and the high-definition video differential driver converts a signal output by the video switching unit into a high-definition digital signal to be output;
the standard definition video output branch circuit comprises a standard definition video differential driver, the input end of the standard definition video differential driver is connected with the video switching unit, and the standard definition video differential driver converts signals output by the video switching unit into standard definition digital signals and outputs the standard definition digital signals.
The video switching unit may employ a switch chip, such as SN65LLVCP408. The switching of LVDS differential video is mainly completed, the video switching unit is controlled by the FPGA, and video delay is dynamically adjusted according to a control instruction of the FPGA.
The CAN controller and the FPGA controller with excellent usability of the control unit provided by the embodiment have the advantages of high processing speed, quick response and low delay. The optical signals with various wavelengths are sent out by adopting the same optical fiber by adopting the wavelength division multiplexer, so that the optical fiber resource is saved.
Example 4
Fig. 3 shows a schematic structural diagram of a receiving device, and referring to fig. 3, the receiving device includes: the device comprises a wavelength division demultiplexer, a photoelectric conversion assembly, a display control assembly and a cable driving assembly;
the input end of the wavelength division demultiplexer is connected with the transmitting device through an optical fiber, and the output end of the wavelength division demultiplexer is connected with the input end of the photoelectric conversion component;
the input end of the display control assembly is connected with the output end of the photoelectric conversion assembly, and the output end is connected with the input end of the cable driving assembly;
the output end of the cable driving assembly outputs the decoded video signal.
The photoelectric conversion assembly comprises a plurality of branches, and each branch is provided with a photoelectric converter;
the input end of the photoelectric converter is connected with the wavelength division demultiplexer, and the output end of the photoelectric converter is connected with the display control assembly;
the photoelectric converter converts the optical signals decomposed by the wavelength division demultiplexer into electric signals and sends the electric signals to the display control assembly;
the display control assembly decodes the electric signals sent by the photoelectric converter and outputs the electric signals through the cable driving assembly.
The cable driving assembly comprises a plurality of standard definition digital signal branches and a plurality of high definition digital signal branches;
each standard definition digital signal branch comprises a standard definition video cable equalizer, and the input end of the standard definition video cable equalizer is connected with the display control assembly;
each high-definition digital signal branch circuit comprises a high-definition video cable equalizer, and the input end of the high-definition video cable equalizer is connected with the display control assembly.
The display control assembly includes: a display and an FPGA controller; the FPGA controller receives and decodes the electric signals sent by the photoelectric converter, displays the decoded video signals through a display and sends out the decoded video signals through a cable driving assembly.
The display control component performs video monitoring while decoding, can timely find transmission errors, and timely determine problems.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While obvious variations or modifications are contemplated as falling within the scope of the present utility model.
It is to be understood that the above-described embodiments of the present utility model are merely illustrative of or explanation of the principles of the present utility model and are in no way limiting of the utility model. Accordingly, any modification, equivalent replacement, improvement, etc. made without departing from the spirit and scope of the present utility model should be included in the scope of the present utility model. Furthermore, the appended claims are intended to cover all such changes and modifications that fall within the scope and boundary of the appended claims, or equivalents of such scope and boundary.
Claims (10)
1. A hybrid video optical transceiver, comprising: a transmitting device and a receiving device;
the transmitting device and the receiving device are connected through an optical fiber;
the transmitting apparatus includes: the system comprises a multi-video source input unit, a video switching unit, a control unit and a video mixing unit;
the multi-video source input unit sends video signals in various formats to the video switching unit;
the video switching unit switches the video signals with various formats sent by the multi-video source input unit in a differential mode according to the instruction of the control unit and transmits the video signals to the video mixing unit;
the video mixing unit converts the signals transmitted by the video switching unit into optical signals with different wavelengths and sends the optical signals to the receiving device through an optical fiber;
the receiving device analyzes the optical signals received through the optical fibers to obtain a plurality of video signals.
2. The hybrid video optical transceiver of claim 1, wherein,
the multi-video source input unit includes: the device comprises a high-definition digital input assembly, a standard-definition digital input assembly, an analog video input assembly, a differential analog video input assembly and an optical fiber signal input assembly;
and the output ends of the high-definition digital input assembly, the standard definition digital input assembly, the analog video input assembly, the differential analog video input assembly and the optical fiber signal input assembly are respectively connected with the video switching unit.
3. The hybrid video optical transceiver of claim 2, wherein,
the high-definition digital input assembly comprises a plurality of high-definition digital signal input branches, each high-definition digital signal input branch comprises a high-definition video cable equalizer, and the output end of the high-definition video cable equalizer is connected with the input end of the video switching unit;
the standard definition digital input assembly comprises a plurality of standard definition digital signal input branches, each standard definition digital signal input branch comprises a standard definition video cable equalizer, and the output end of the standard definition video cable equalizer is connected with the input end of the video switching unit.
4. The hybrid video optical transceiver of claim 2, wherein,
the analog video input assembly comprises an analog video signal input branch circuit, and the analog video signal input branch circuit comprises a video analog signal-digital signal converter, a video conversion module and a standard definition video cable equalizer;
the input end of the video analog signal-digital signal converter is connected with the output end of the video conversion module;
the output end of the video conversion module is connected with the input end of the standard definition video cable equalizer;
the output end of the standard definition video cable equalizer is connected with the video switching unit;
the optical fiber signal input assembly comprises an optical signal input branch, the optical signal input branch comprises a photoelectric converter, and the output end of the photoelectric converter is connected with the video switching unit to convert a received optical signal into an electric signal and send the electric signal to the video switching unit.
5. The hybrid video optical transceiver of claim 2, wherein,
the control unit includes: a CAN controller and an FPGA controller;
the output end of the CAN controller is connected with the input end of the FPGA controller, and the output end of the FPGA controller is connected with the control end of the video mixing unit.
6. The hybrid video optical transceiver of claim 1, wherein,
the video mixing unit includes: a plurality of photoelectric converters and wavelength division multiplexers;
the input ends of the photoelectric converters are respectively connected with the video switching unit;
the output ends of the photoelectric converters are respectively connected with the wavelength division multiplexer;
the photoelectric converters respectively convert the video signals output by the video switching unit into optical signals with different wavelengths and send the optical signals to the wavelength division multiplexer;
the wavelength division multiplexer transmits a plurality of optical signals to the receiving device through an optical fiber.
7. The hybrid video optical transceiver of claim 1, wherein,
the transmitting device also comprises a plurality of high-definition video output branches and a plurality of standard definition video output branches;
the high-definition video output branch circuit comprises a high-definition video differential driver, the input end of the high-definition video differential driver is connected with the video switching unit, and the high-definition video differential driver converts a signal output by the video switching unit into a high-definition digital signal to be output;
the standard definition video output branch circuit comprises a standard definition video differential driver, the input end of the standard definition video differential driver is connected with the video switching unit, and the standard definition video differential driver converts signals output by the video switching unit into standard definition digital signals and outputs the standard definition digital signals.
8. The hybrid video optical transceiver of claim 1, wherein,
the receiving device includes: the device comprises a wavelength division demultiplexer, a photoelectric conversion assembly, a display control assembly and a cable driving assembly;
the input end of the wavelength division demultiplexer is connected with the transmitting device through an optical fiber, and the output end of the wavelength division demultiplexer is connected with the input end of the photoelectric conversion component;
the input end of the display control assembly is connected with the output end of the photoelectric conversion assembly, and the output end is connected with the input end of the cable driving assembly;
and the output end of the cable driving assembly outputs the decoded video signal.
9. The hybrid video optical transceiver of claim 8, wherein,
the photoelectric conversion assembly comprises a plurality of branches, and each branch is provided with a photoelectric converter;
the input end of the photoelectric converter is connected with the wavelength division demultiplexer, and the output end of the photoelectric converter is connected with the display control assembly;
the photoelectric converter converts the optical signals decomposed by the wavelength division demultiplexer into electric signals and sends the electric signals to the display control assembly;
the display control assembly decodes the electric signals sent by the photoelectric converter and outputs the electric signals through the cable driving assembly.
10. The hybrid video optical transceiver of claim 8, wherein,
the cable driving assembly comprises a plurality of standard definition digital signal branches and a plurality of high definition digital signal branches;
each standard definition digital signal branch comprises a standard definition video cable equalizer, and the input end of the standard definition video cable equalizer is connected with the display control assembly;
each high-definition digital signal branch circuit comprises a high-definition video cable equalizer, and the input end of the high-definition video cable equalizer is connected with the display control assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321519820.2U CN220173316U (en) | 2023-06-14 | 2023-06-14 | Mixed video optical transceiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321519820.2U CN220173316U (en) | 2023-06-14 | 2023-06-14 | Mixed video optical transceiver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220173316U true CN220173316U (en) | 2023-12-12 |
Family
ID=89053800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321519820.2U Active CN220173316U (en) | 2023-06-14 | 2023-06-14 | Mixed video optical transceiver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220173316U (en) |
-
2023
- 2023-06-14 CN CN202321519820.2U patent/CN220173316U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107426551B (en) | FPGA-based full-mode Cameralink digital image optical transceiver receiving end and transmitting end | |
| CN201726404U (en) | KVM optical transmitter and receiver. | |
| CN104104893A (en) | Device capable of carrying out remote transmission on mixed signals simultaneously through single optical fiber and transmission method | |
| CN110881027A (en) | Video transmission system and conversion method of Camera Link-ARINC818 protocol | |
| CN101841698A (en) | Long-distance transfer system for video data | |
| CN202334778U (en) | High-definition multimedia interface (HDMI) optical fiber transmission device | |
| CN201655249U (en) | Integrated audio/video controller for LED display | |
| CN220173316U (en) | Mixed video optical transceiver | |
| US20190141336A1 (en) | Chip and digital video signal transmission system | |
| CN105025277A (en) | Optical fiber transmission system for LED display screen | |
| CN202602805U (en) | Digital video recorder using twisted-pair cables for transmitting video signals, and camera using twisted-pair cables for transmitting video signals | |
| CN202513993U (en) | Single-optical fiber high-definition multimedia interface (HDMI) signal transmission module | |
| CN113422941B (en) | HDMI data transmission and control system | |
| CN102740128A (en) | Video transmission device with surfing function and implementation method thereof | |
| CN104639898A (en) | Multifunctional service transmission device based on Rapidio switching network | |
| CN212660274U (en) | IP network-based streaming media coding and decoding equipment | |
| CN213938205U (en) | 4k composite video remote transmission device | |
| CN212572779U (en) | Remote HDMI signal extender with color space conversion function | |
| CN112532956A (en) | Interactive mixed light cascade matrix | |
| CN202364224U (en) | Four-core optical fiber HDMI optical transceiver | |
| CN201332483Y (en) | System capable of achieving connection between computer and television through TV box and PC box | |
| CN109803128A (en) | A kind of Video Long-distance Transfer System Controled based on FPGA | |
| CN214256489U (en) | Interactive mixed light cascade matrix | |
| CN213938183U (en) | Remote lossless transmission device for 4k video | |
| CN210491048U (en) | HDMI extender powered by POE |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |