CN208158742U - A kind of Video Quality Metric distributor with network management - Google Patents
A kind of Video Quality Metric distributor with network management Download PDFInfo
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- CN208158742U CN208158742U CN201820683527.2U CN201820683527U CN208158742U CN 208158742 U CN208158742 U CN 208158742U CN 201820683527 U CN201820683527 U CN 201820683527U CN 208158742 U CN208158742 U CN 208158742U
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- hdmi
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- transmitting terminal
- conversion module
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Abstract
The utility model discloses a kind of Video Quality Metric distributor with network management, it is the video long pass distribution system based on HDMI interface for integrating high definition video collecting, transmission and display, it can be realized the acquisition of high-definition video signal, without compression transmission, it is communicated simultaneously using serial ports with terminal presentation facility, the problem of not only solving real-time difference and poor image quality, moreover it is possible to which terminal presentation facility is accordingly controlled.
Description
Technical field
The utility model relates to rail traffic technical field of video transmission more particularly to a kind of video with network management to turn
Change distributor.
Background technique
With the increase of subway line, the importance of rail traffic is increasingly highlighted, in order to improve metro operation management water
It is flat, expand subway and passenger facilities range, the various information bulletins of quickening are transmitted, PIS (passenger information system：Passenger
Information System) it comes into being.PIS is to rely on multimedia network technology, using computer system as core, by setting
The display terminal for setting subway concourse, platform, entrance, train allows passenger timely and accurately to understand train operation information and public medium
The multimedia comprehensive information system of information；Passenger information system under normal circumstances, provides Passenger Notice, service time, train
To hair the time, time-table, manager's bulletin, government notice, tour reference, stock information, Media News, live game coverage,
The real-time dynamic multimedia messages such as advertisement；Under the abnormal conditions such as fire, obstruction and the attack of terrorism, it is urgent thin to provide dynamic
Dissipate prompt.
Since rail traffic PIS system terminal playback equipment and terminal display screen are generally there are 1 hundred to hundreds of meters distance,
So current many schemes, which are used, carries out network transmission for video data compression, then real in the mode that decoding terminals play out
Existing, in addition a playback terminal needs support eight or more display terminals, so needing using video long pass distribution technique.So
And this mode results in the distortion of video, leads to the problem of real-time difference and poor image quality.
Utility model content
In order to solve the technical problems in background technology, the utility model proposes a kind of videos with network management
Distributor is converted, to improve the real-time and picture quality of the audio-video signal transmitted between playing controller and display terminal.
The utility model proposes a kind of Video Quality Metric distributor with network management, including transmitting terminal and receiving end, hair
The HDMI video data that playing controller acquires are converted to optical signal by sending end, and are transferred to receiving end by optical-fiber network, are received
End converts optical signals to HDMI video data, is then connected to display terminal via HDMI interface and is shown；Wherein,
Transmitting terminal includes：
HDMI input module, connect with playing controller, receive the audio signal that acquire and sent by playing controller with
Vision signal；
Transmitting terminal HDMI shunt module, including input interface, the first output interface and the second output interface, input interface with
The connection of HDMI input module, the input signal of HDMI all the way from HDMI input module are divided into two-way HDMI output signal, and first
Road HDMI output signal is output to rear class electrooptic conversion module by the first output interface, and the second road HDMI output signal passes through the
The output of two output interfaces；
Electrooptic conversion module, input terminal are connect with the first output interface of transmitting terminal HDMI shunt module, and it is defeated to receive HDMI
HDMI signal is converted to optical signal, is transferred to receiving end by optical-fiber network by signal out；
Transmitting terminal microcontroller, connect with playing controller and electrooptic conversion module respectively, carries out to electrooptic conversion module
Configuration；And connect with serial ports control module, enable end is carried out to eight serial-port/optical-fiber conversion modules by serial ports control module and is led to
The disconnected timesharing management with completion to eight road serial ports；
Receiving end includes：
Photoelectric conversion module, input terminal are connected by the electrooptic conversion module output end of optical-fiber network and transmitting terminal, are being received
HDMI signal is converted into after the optical signal sent by electrooptic conversion module；
The output end of receiving end HDMI shunt module, input terminal and photoelectric conversion module connects, and HDMI signal will turn all the way
Change two-way HDMI signal into, two paths of signals is connect with terminal presentation facility respectively；
Serial-port/optical-fiber conversion module is connect by light network with serial-port/optical-fiber conversion module；
Receiving end microcontroller turns serial port module with optical fiber and connect, and reception optical fiber turns two of serial port module interface offer
Pin is used as rs 232 serial interface signal, and distribution is sent on other two serial ports.
Preferably, transmitting terminal microcontroller is connect with playing controller and electrooptic conversion module by serial ports respectively.
Preferably, transmitting terminal microcontroller configures electrooptic conversion module by I2C interface.
Preferably, transmitting terminal HDMI shunt module is the IT6661 chip of ITE.
Preferably, electrooptic conversion module and photoelectric conversion module are SD1503 chip.
Preferably, transmitting terminal microcontroller and receiving end microcontroller are STM32f103 chip.
Preferably, serial ports control module is 74HC125 chip.
In the utility model, provide it is a kind of integrate high definition video collecting, transmission and display based on HDMI
The video long pass of (High Definition Multimedia Interface, high-definition multimedia interface) interface distributes system
System can be realized the acquisition of high-definition video signal, be communicated without compression transmission, while using serial ports with terminal presentation facility,
The problem of not only solving real-time difference and poor image quality, moreover it is possible to which terminal presentation facility is accordingly controlled.
Detailed description of the invention
Fig. 1 is a kind of Video Quality Metric dispensing arrangement figure with network management that the utility model embodiment 1 proposes.
Specific embodiment
The utility model embodiment 1 proposes a kind of Video Quality Metric distributor with network management, and transmitting terminal will be played and be controlled
The HDMI video data of device acquisition processed are converted to optical signal, and are transferred to receiving end by optical-fiber network, and receiving end turns optical signal
HDMI video data are changed to, then display terminal is connected to via HDMI interface and is shown；Playing controller and display equipment
Between hold consultation automatically, select suitable video format (support 1080P), synchronously output AV signal.It broadcasts simultaneously
Putting controller can be communicated by serial ports with display terminal, be believed to realize the control of display terminal and display terminal
The feedback of breath.
Specific structure is as shown in Figure 1, transmitting terminal 100 includes：
HDMI input module 110, connect with playing controller, receive acquired and sent by playing controller without compression
Audio signal and high definition video signal；
Transmitting terminal HDMI shunt module 120, including input interface, the first output interface and the second output interface, input connect
Mouth is connect with HDMI input module 110, and the input signal of HDMI all the way from HDMI input module 110 is divided into two-way HDMI output
Signal, first via HDMI output signal are output to rear class electrooptic conversion module 130 by the first output interface, and the second road HDMI is defeated
Signal is exported by the second output interface out, as the HDMI signal link that ring goes out, can be used for real-time monitoring, such as connection LED
Indicator light, carrying out signal, whether there is or not instructions.Wherein, the IT6661 chip of ITE can be used in transmitting terminal HDMI shunt module.
Electrooptic conversion module 130, input terminal are connect with the first output interface of transmitting terminal HDMI shunt module 120, are received
HDMI signal is converted to optical signal, is transferred to receiving end by optical-fiber network by HDMI output signal.Wherein, electrooptic conversion module
SD1503 chip can be used.
Transmitting terminal microcontroller 140 is connect by serial ports with playing controller and electrooptic conversion module 130 respectively, is passed through
I2C (Inter-Integrated Circuit, IC bus) interface configures electrooptic conversion module 130；And with
Serial ports control module 150 connects, and carries out enable end to eight serial-port/optical-fiber conversion modules 160 by serial ports control module 150 and leads to
The disconnected timesharing management with completion to eight road serial ports.Playing controller sends control number to transmitting terminal microcontroller 140 by serial ports
After being received according to, transmitting terminal microcontroller 140, it is transmitted to serial-port/optical-fiber conversion module 160, is transmitted via optical fiber, receiving end is reached
Optical fiber turns serial port module, is transmitted further to receiving end microcontroller, and the string of terminal presentation facility is transferred to by receiving end microcontroller
Mouthful, realize that playing controller passes through the communication of serial ports and display terminal.STM32f103 can be used in the present embodiment as micro-control
74HC125 chip can be used in device processed, serial ports control module.
Receiving end includes：
Photoelectric conversion module 210, input terminal are connected by 130 output end of photoelectric conversion module of optical-fiber network and transmitting terminal,
HDMI signal is converted into after receiving the optical signal sent by transmitting terminal electrooptic conversion module 130.
Receiving end HDMI shunt module 220, input terminal is connect with the output end of photoelectric conversion module 210, will HDMI all the way
Signal is converted into two-way HDMI signal, and two paths of signals is connect with terminal presentation facility respectively, and the long range for completing video data passes
It is defeated.
Optical fiber turns serial port module 240, is connect by light network with serial-port/optical-fiber conversion module 160；
Receiving end microcontroller 230 turns serial port module 240 with optical fiber and connect, and reception optical fiber turns 240 interface of serial port module
Two pins provided are used as rs 232 serial interface signal, are sent on other two serial ports by program code reallocation, to realize the one of serial ports
Turn two to expand, the link of data communication is provided between playing controller and display screen.Receiving end microcontroller 230, which receives, to be sent
The control data that side controller is sent are transferred to the serial ports of terminal presentation facility by receiving end microcontroller, are realized and are played control
Device passes through the communication of serial ports and display terminal.
In the utility model, provide it is a kind of integrate high definition video collecting, transmission and display based on HDMI interface
Video long pass distribution system, can be realized the acquisition of high-definition video signal, without compression transmission, while aobvious using serial ports and terminal
The problem of showing that equipment is communicated, not only solving real-time difference and poor image quality, moreover it is possible to which phase is carried out to terminal presentation facility
It should control.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this
Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.
Claims (7)
1. a kind of Video Quality Metric distributor with network management, which is characterized in that including transmitting terminal and receiving end, transmitting terminal will be broadcast
The HDMI video data for putting controller acquisition are converted to optical signal, and are transferred to receiving end by optical-fiber network, and light is believed in receiving end
Number HDMI video data are converted to, are then connected to display terminal via HDMI interface and are shown；Wherein,
Transmitting terminal includes：
HDMI input module (110), connect with playing controller, receive the audio signal that acquire and sent by playing controller with
Vision signal；
Transmitting terminal HDMI shunt module (120), including input interface, the first output interface and the second output interface, input interface
It is connect with HDMI input module (110), it is defeated that the input signal of HDMI all the way from HDMI input module (110) is divided into two-way HDMI
Signal out, first via HDMI output signal are output to rear class electrooptic conversion module (130), the second tunnel by the first output interface
HDMI output signal is exported by the second output interface；
Electrooptic conversion module (130), input terminal are connect with the first output interface of transmitting terminal HDMI shunt module (120), are received
HDMI signal is converted to optical signal, is transferred to receiving end by optical-fiber network by HDMI output signal；
Transmitting terminal microcontroller (140) is connect, to electro-optic conversion mould respectively with playing controller and electrooptic conversion module (130)
Block (130) is configured；And connect with serial ports control module (150), light is turned to eight serial ports by serial ports control module (150)
Fiber module (160) carries out the on-off of enable end to complete the timesharing management to eight road serial ports；
Receiving end includes：
Photoelectric conversion module (210), input terminal are connected by electrooptic conversion module (130) output end of optical-fiber network and transmitting terminal,
HDMI signal is converted into after receiving the optical signal sent by electrooptic conversion module (130)；
Receiving end HDMI shunt module (220), input terminal are connect with the output end of photoelectric conversion module (210), will HDMI all the way
Signal is converted into two-way HDMI signal, and two paths of signals is connect with terminal presentation facility respectively；
Optical fiber turns serial port module (240), is connect by light network with serial-port/optical-fiber conversion module (160)；
Receiving end microcontroller (230) turns serial port module (240) with optical fiber and connect, and reception optical fiber turns serial port module (240) interface
Two pins provided are used as rs 232 serial interface signal, and distribution is sent on other two serial ports.
2. the Video Quality Metric distributor according to claim 1 with network management, which is characterized in that transmitting terminal microcontroller
(140), it is connect respectively with playing controller and electrooptic conversion module (130) by serial ports.
3. the Video Quality Metric distributor according to claim 1 with network management, which is characterized in that transmitting terminal microcontroller
(140) electrooptic conversion module (130) is configured by I2C interface.
4. the Video Quality Metric distributor according to claim 1 with network management, which is characterized in that transmitting terminal HDMI branch
Module is the IT6661 chip of ITE.
5. the Video Quality Metric distributor according to claim 1 with network management, which is characterized in that electrooptic conversion module
(130) and photoelectric conversion module (210) is SD1503 chip.
6. the Video Quality Metric distributor according to claim 1 with network management, which is characterized in that transmitting terminal microcontroller
(140) and receiving end microcontroller (230) is STM32f103 chip.
7. the Video Quality Metric distributor according to claim 1 with network management, which is characterized in that serial ports control module
It (150) is 74HC125 chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820683527.2U CN208158742U (en) | 2018-05-08 | 2018-05-08 | A kind of Video Quality Metric distributor with network management |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820683527.2U CN208158742U (en) | 2018-05-08 | 2018-05-08 | A kind of Video Quality Metric distributor with network management |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208158742U true CN208158742U (en) | 2018-11-27 |
Family
ID=64389735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820683527.2U Active CN208158742U (en) | 2018-05-08 | 2018-05-08 | A kind of Video Quality Metric distributor with network management |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208158742U (en) |
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2018
- 2018-05-08 CN CN201820683527.2U patent/CN208158742U/en active Active
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