CN212969860U - Trillion all-optical non-blocking high-definition video switching matrix - Google Patents
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- CN212969860U CN212969860U CN202022338099.XU CN202022338099U CN212969860U CN 212969860 U CN212969860 U CN 212969860U CN 202022338099 U CN202022338099 U CN 202022338099U CN 212969860 U CN212969860 U CN 212969860U
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Abstract
A ten-gigabit all-optical non-blocking high-definition video switching matrix comprises a state acquisition and control chip U1, a ten-gigabit digital signal switching chip U2, a system control core processor unit U3, and a plurality of input optical modules, emission optical modules and optical splitters which are consistent in number, wherein the input optical modules receive optical signals input from the outside, the input optical modules are connected with the ten-gigabit digital signal switching chip U2, the ten-gigabit digital signal switching chip U2 is connected with the corresponding emission optical modules, and input signals are copied and switched to output ports of the corresponding emission optical modules by opening or closing a switch. The utility model discloses an advanced non-compression digital high definition video and high-speed digital switching technique, the signal of various resolution ratios can be received, switched, distributed to the receiver of the optic fibre transmitter of cooperation front end, rear end.
Description
Technical Field
The utility model belongs to the technical field of the light signal switches and specifically relates to a high definition audio frequency and video analog video CVBS, YPbPr, VGA, RGBHV for multichannel input, the light signal of digital video HDMI, DVI, SDI provides the switching matrix of signal switching, relaying, distribution.
Background
The matrix switcher switches one or more video and audio signals respectively and selectively transmits the signals to one or more display devices, and the types of the matrix switcher can be divided into the following types according to signal sources: VGA, AV, DVI, RGB, HDMI matrix switch. The method is mainly applied to projects requiring alternate use of multiple paths of audio and video signals, such as large-screen splicing, video conference projects, AV projects, monitoring and the like. The matrix switcher has the function of independently selecting and outputting multiple channels including 1 channel of signals according to needs under the condition of inputting multiple channels of signals, and completing the selection of the signals, and generally an M multiplied by N matrix. Currently, matrix switches support several signal types: the HDMI signal, DVI signal, VGA signal, RGB signal, component video signal, audio and video signal, audio signal and analog standard definition video signal.
Matrix switchers are currently widely used in various situations where video signals need to be switched and selected, such as: broadcast television, large screen projection television, audio-visual education, video teleconferencing, multimedia conference rooms, corporate conference rooms, forces, government agencies, control centers, classrooms, restaurants, home theaters, video conference rooms, and the like;
in most practical applications, the market-wide matrix already provides a good implementation. There are specific applications that require specific applications. A generic matrix cannot meet special requirements. For example, in a PIS system of an airport and a station, a front-end display device, a switching matrix exceeds the distance of cable transmission, the requirement of display resolution is clearer, the resolution reaches 4K, the distance between a plurality of conference sites of a unit video teleconference and a control center is hundreds of meters, a real-time video signal of the site needs to be transmitted to the control center through an optical fiber, a video signal output by the control center needs to be transmitted to the site through the optical fiber, and therefore an all-optical switching matrix is needed. Although the universal matrix has strong functions, the universal matrix has complex configuration and high technical requirements on operators, has high requirements on installation environment, and is not suitable for occasions with complex electromagnetic environments.
Disclosure of Invention
The utility model discloses a to general video matrix configuration complicacy, to operating personnel's technique, the high problem of installation environment requirement, and provide a ten thousand million full gloss non-blocking high definition video switching matrixes, adopt advanced non-compression digital high definition video and high-speed digital switching technique, the optical fiber transmitter of cooperation front end, the receiver of rear end can receive, switch, distribute the signal of various resolution ratios.
The technical scheme of the utility model:
a ten-thousand-million all-optical non-blocking high-definition video switching matrix comprises a state acquisition and control chip U1, a ten-thousand-million digital signal switching chip U2, a system control core processor unit U3, and a plurality of input optical modules, emission optical modules and optical splitters which are consistent in quantity, wherein the input optical modules receive externally input optical signals, the signal output ends of the input optical modules are connected with the input ends of the ten-thousand-million digital signal switching chip U2, the ten-thousand-million digital signal switching chip U2 is connected with the corresponding emission optical modules, the input signals are copied and switched to the output ports of the corresponding emission optical modules by opening or closing a switch, the emission optical modules are connected with the input ends of the corresponding optical splitters, and the optical splitters output corresponding optical signals after splitting and transmitting the corresponding optical signals through optical fibers; the control signal end of the ten-gigabit digital signal switching chip U2 is connected with a system control core processor unit U3, the system control core processor unit U3 is connected with a state acquisition and control chip U1, and the state acquisition and control chip U1 is connected with the corresponding control signal ends of the input optical module and the emission optical module.
Furthermore, the number of the input optical modules is 1-12, and the number of the emission optical modules and the number of the optical splitters are also 1-12 correspondingly.
Further, the optical splitter can split 1-8 optical signals to be output.
Further, the externally input optical signal includes an analog standard definition video, an analog high definition video, and a digital high definition video.
Further, the bandwidth of the optical signal is less than 11.3 Gbps.
Further, it also includes network management port, the system control core processor unit U3 connects with external PC through the network management port to carry out configuration and status reading.
Further, it also includes a control keyboard, which is connected to the system control core processor unit U3.
Further, the system also comprises a liquid crystal display screen, and the liquid crystal display screen is connected with the system control core processor unit U3 and is used for displaying the working state.
The utility model has the advantages that:
the utility model discloses can constitute 12 all-optical input 12 way full gloss output's of 12 ways high-speed video matrix, input and output all can transmit more than 5 kilometers to support 4K high definition video, support 1-8 way spectral output simultaneously, be particularly suitable for low cost, remote, high definition signal transmission. The matrix is simple in arrangement and convenient to maintain. Local keyboard settings are supported, as are remote network settings.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail exemplary embodiments thereof with reference to the attached drawings, in which like reference numerals generally represent like parts throughout.
Fig. 1 is a schematic diagram of the utility model connection.
Fig. 2 is a schematic block diagram of the present invention.
Fig. 3 is a schematic connection diagram of an embodiment of the present invention.
Detailed Description
Preferred embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While the preferred embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be embodied in various forms and should not be limited to the embodiments set forth herein.
As shown in fig. 1-3, a gigabit all-optical non-blocking high definition video switching matrix includes a state acquisition and control chip U1, a gigabit digital signal switching chip U2, a system control core processor unit U3, and a plurality of input optical modules, emission optical modules and optical splitters in the same number, where the input optical modules receive externally input optical signals, a signal output end of the input optical module is connected to an input end of the gigabit digital signal switching chip U2, the gigabit digital signal switching chip U2 is connected to a corresponding emission optical module, and copies and switches the input signals to an output port of the corresponding emission optical module by opening or closing a switch, the emission optical module is connected to an input end of the corresponding optical splitter, and the optical splitters output corresponding optical signals after splitting light and transmit the optical signals through optical fibers; the control signal end of the ten-gigabit digital signal switching chip U2 is connected with a system control core processor unit U3, the system control core processor unit U3 is connected with a state acquisition and control chip U1, and the state acquisition and control chip U1 is connected with the corresponding control signal ends of the input optical module and the emission optical module.
In the embodiment, the trillion all-optical non-blocking high-definition video switching matrix receives 1-12 paths of input video analog standard-definition videos, analog high-definition videos and digital high-definition videos, optical signals with the bandwidth less than or equal to 11.3Gbps are converted into electric signals, the electric signals can be switched and output through a hardware switch chip according to local and remote control commands, then the electric signals are converted into 1-12 output optical ports through an output optical module, and each output optical port can be divided into 1-8 paths of optical signals through an optical splitter to be output, so that the function of the all-optical switching matrix for light input and light output is realized. The input optical port of the optical matrix supports 12-path input maximally, the output optical port supports 12 groups of output maximally, each group supports 8 optical port outputs, and the optical matrix is connected with the post-stage optical receiver equipment. The utility model discloses a system control core processor unit of matrix passes through the operating condition that state collection and control chip collected light interface, matrix chip, not only realizes local keyboard switching control, can also receive the ethernet network management signal control of distal end, and configuration LCD screen can visual display port operating condition, system operating condition, switching command etc. simultaneously.
The receiving optical module FR1-FR12 of the trillion all-optical non-blocking high-definition video switching matrix adopts a market-universal 12.5G bandwidth SFP + optical module with DDM information, the state acquisition and control chip U1 adopts XC95288 of a CPLD chip XILINX company, the trillion digital signal switching chip U2 adopts an AD company ADN4612, the system control core processor unit U3 adopts an S3C44BOX of an ARM company, the 1-12 transmitting optical modules FT1-FT12 adopt a market-universal 12.5G bandwidth SFP + optical module with DDM information, the 1-12 optical splitters adopt universal optical splitters with average light splitting of 1 minute 2, 1 minute 4 and 1 minute 8, the control keyboard adopts a matrix of mechanically scanned 4X4, and the liquid crystal display screen LCD1 adopts a universal LCD display screen with the size larger than or equal to 6 inches.
Firstly, a receiving optical module FR1-FRn in a trillion all-optical non-blocking high-definition video switching matrix receives an optical signal Fin1-Finn input from outside by a maximum of 12 optical modules, the optical signal is converted by an external video optical transceiver, the optical signal is converted into a differential high-speed data signal IP/N0-IP/Nn by the optical modules and a maximum of 12 paths of signals, the IP/N0-IP/Nn signal is sent to an input end of a trillion digital signal switching chip U2, the U2 is connected with a matrix control core processor unit U3 through an asynchronous serial port control signal UART2, the U3 controls the U2 to be crossed to switch between input and output through a UART2, the input signal is copied and switched to a corresponding output port, the differential high-speed data signal OP/N0-NOP maximum of 12 paths of signals are output, the differential signal is sent to a differential data interface of a transmitting optical module FT1-FTn, the optical signals Fout1-foutn are converted into optical signals with maximum 12 paths, the optical signals are sent into optical splitters FD1-FDn with maximum 1-8 paths, each optical signal input by the optical splitters is divided into optical signals with maximum m-8 paths, and the optical signals are transmitted to the front end through optical fibers.
A system control core processor unit U3 built in a trillion all-optical non-blocking high-definition video switching matrix is a core processing unit of the system, and a microcomputer processing unit is adopted to mainly run a matrix control embedded program to control the running of the whole matrix system. The embedded program mainly comprises a control program of a CPLD chip U1, a switching control program for mainly monitoring the working states of a receiving optical module and a transmitting optical module, reading and setting DDM signals of the optical modules, controlling the transmitting optical module to be opened and closed and controlling a ten-gigabit digital signal switching chip U2, a keyboard communication program, a liquid crystal display program and a remote network management program. The U3 is connected with the state acquisition and control chip U1 through an asynchronous serial interface UART 1. The U3 is connected with a ten-gigabit digital signal switching chip U1 through an asynchronous serial interface UART1, the U3 is connected with a control keyboard through a keyboard interface KB1, and the U3 is connected with a liquid crystal display through a display interface LCD 1.
The state acquisition and control chip U1 in the trillion all-optical non-blocking high-definition video switching matrix is a CPLD chip, is internally provided with a state acquisition and control embedded program, is mainly responsible for acquiring the working states of a receiving optical module and a transmitting optical module and controlling the on and off of the transmitting optical module. The chip is connected with an LOS signal of a receiving optical module and a TX-fault signal of a transmitting optical module, and collects the alarm state of the optical module. And simultaneously, a TX-disable pin of the transmitting optical module is connected to control the on and off of the transmitting optical module. While U1 passes through I2And the bus C is used for connecting all I2C bus DDM signals of the receiving optical module and the transmitting optical module, setting working parameters of the optical module and collecting the working state of the optical module. The chip is connected with a system control core processor unit U3 through a UART1 bus, transmits the working state of the optical module to the system control core processor unit, and receives the control and configuration commands of the system control core processor unit.
The network management interface console of the trillion all-optical non-blocking high-definition video switching matrix is connected with the network interface MII of the system control core processor unit U3, an external PC is connected through the network management interface, and the PC performs configuration and state reading on the system control core processor unit by using a network pipe orifice.
The trillion all-optical non-blocking high-definition video switching matrix further comprises 1 control keyboard, the keyboard is connected with a system control core processor unit U3 through a special keyboard interface KB1, and the keyboard can be used for locally inputting commands to perform program control and calling on U3.
The trillion all-optical non-blocking high-definition video switching matrix comprises 1 liquid crystal display screen LCD1, the liquid crystal display screen is connected with a system control core processor unit U3 through an LCD1 signal interface, the liquid crystal display screen LCD1 can display the working state of the trillion all-optical non-blocking high-definition video switching matrix, and the working state and parameters of a transceiver optical module, the corresponding input and output states and the working state of equipment can be intuitively reflected.
Having described embodiments of the present invention, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.
Claims (8)
1. A ten-thousand-million all-optical non-blocking high-definition video switching matrix is characterized in that: the switching matrix comprises a state acquisition and control chip U1, a gigabit digital signal switching chip U2, a system control core processor unit U3, and a plurality of input optical modules, emission optical modules and optical splitters which are consistent in quantity, wherein the input optical modules receive externally input optical signals, the signal output ends of the input optical modules are connected with the input ends of the gigabit digital signal switching chip U2, the gigabit digital signal switching chip U2 is connected with corresponding emission optical modules, the input signals are copied and switched to the output ports of the corresponding emission optical modules by opening or closing a switch, the emission optical modules are connected with the input ends of the corresponding optical splitters, and the optical splitters output corresponding optical signals after splitting light and transmit the corresponding optical signals through optical fibers; the control signal end of the ten-gigabit digital signal switching chip U2 is connected with a system control core processor unit U3, the system control core processor unit U3 is connected with a state acquisition and control chip U1, and the state acquisition and control chip U1 is connected with the corresponding control signal ends of the input optical module and the emission optical module.
2. The trillion all-optical non-blocking high definition video switching matrix according to claim 1, characterized by: the number of the input optical modules is 1-12, and the number of the emission optical modules and the number of the optical splitters are also 1-12 correspondingly.
3. The trillion all-optical non-blocking high definition video switching matrix according to claim 1, characterized by: the optical splitter can split 1-8 optical signals to output.
4. The trillion all-optical non-blocking high definition video switching matrix according to claim 1, characterized by: the externally input optical signals include analog standard definition video, analog high definition video, and digital high definition video.
5. The trillion all-optical non-blocking high definition video switching matrix according to claim 4, characterized by: the bandwidth of the optical signal is less than 11.3 Gbps.
6. The trillion all-optical non-blocking high definition video switching matrix according to claim 1, characterized by: the system also comprises a network management port, and the system control core processor unit U3 is connected with an external PC through the network management port to perform configuration and state reading.
7. The trillion all-optical non-blocking high definition video switching matrix according to claim 1, characterized by: it also includes a control keyboard which is connected to the system control core processor unit U3.
8. The trillion all-optical non-blocking high definition video switching matrix according to claim 1, characterized by: the system also comprises a liquid crystal display screen, wherein the liquid crystal display screen is connected with the system control core processor unit U3 and is used for displaying the working state.
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| CN202022338099.XU CN212969860U (en) | 2020-10-19 | 2020-10-19 | Trillion all-optical non-blocking high-definition video switching matrix |
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| CN202022338099.XU CN212969860U (en) | 2020-10-19 | 2020-10-19 | Trillion all-optical non-blocking high-definition video switching matrix |
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