CN215187080U - Video output control system applied to agricultural machinery driving computer - Google Patents
Video output control system applied to agricultural machinery driving computer Download PDFInfo
- Publication number
- CN215187080U CN215187080U CN202121319859.0U CN202121319859U CN215187080U CN 215187080 U CN215187080 U CN 215187080U CN 202121319859 U CN202121319859 U CN 202121319859U CN 215187080 U CN215187080 U CN 215187080U
- Authority
- CN
- China
- Prior art keywords
- signal
- lvds
- control system
- output control
- video output
- 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
- 230000005236 sound signal Effects 0.000 claims abstract description 17
- 238000006243 chemical reaction Methods 0.000 claims description 25
- 239000004973 liquid crystal related substance Substances 0.000 claims description 17
- 238000012545 processing Methods 0.000 claims description 5
- 230000008054 signal transmission Effects 0.000 abstract description 6
- 230000035939 shock Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 10
- 230000005540 biological transmission Effects 0.000 description 8
- 101001074449 Crotalus durissus terrificus Phospholipase A2 inhibitor CNF Proteins 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Images
Landscapes
- Controls And Circuits For Display Device (AREA)
Abstract
The utility model discloses a be applied to video output control system of agricultural machinery driving computer, include: CPU microprocessor, LVDS converter, image/audio signal special chip, host power module and display; the CPU microprocessor is respectively connected with the host power supply module, the display and the LVDS converter; the image/audio signal dedicated chip is connected with the display and the LVDS converter respectively. The utility model discloses both guaranteed good video signal transmission ability, guaranteed the anti-seismic performance of video cable again, more be adapted to agricultural machine equipment's high shock environment and use.
Description
Technical Field
The utility model relates to a video signal control technical field, concretely relates to be applied to video output control system of agricultural machinery driving computer.
Background
At present, with the development of social science and technology, people have higher and higher requirements on video quality and form, video resolution is continuously improved, and the types of video interfaces are more and more. High Definition Multimedia Interface (HDMI) is a digital video/audio Interface technology, and does not require digital-to-analog or analog-to-digital conversion before signal transmission, and is a currently common audio and video Interface signal; therefore, during the video or playing process, files in other interface forms are often converted into HDMI interface signals.
However, when the LVDS signal is converted into the HDMI interface signal, the conventional technology applies an X86CPU processor on a complex command system computer CICS device to convert the LVDS signal into an analog VGA signal through a programming and digital-to-analog converter, and then converts the VGA into the HDMI interface signal by using a video-dedicated chip. The method uses a CPU programming method to realize the conversion of signals, the intermediate process is converted from digital image signals to analog VGA, and the analog VGA signals are converted into signals of an HDMI interface through a special chip. The method is not beneficial to the miniaturization of the equipment because the computer equipment CICS equipment with complex instructions is adopted; meanwhile, the intermediate conversion process is subjected to analog-to-digital conversion processing, so that certain loss is caused to image signals.
Secondly, in the field of agricultural machinery, a driving computer host and a display of the agricultural machinery are far away, the video signal transmission capacity is poor, the anti-seismic performance of a video cable is unstable, and the video cable is not suitable for being used in a high-vibration environment of agricultural machinery equipment.
Therefore, it is highly desirable to have an output video signal with high transmission, high precision and high shock resistance, which is a problem of great concern to researchers.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem that exists among the prior art, the utility model provides a be applied to video output control system of agricultural machine driving computer, based on compound transmission mode, combined LVDS video signal's good difference performance, transmission distance and DVI24+ 5's good physics hasp technique promptly, both guaranteed good video signal transmission ability, guaranteed the anti-seismic performance of video cable again, more be adapted to agricultural mechanical equipment's high shock environment and use.
In order to achieve the above object, the utility model provides a following scheme:
a video output control system applied to a traveling computer of agricultural machinery is characterized by comprising: CPU microprocessor, LVDS converter, image/audio signal special chip, host power module and display;
the CPU microprocessor is respectively connected with the host power supply module, the display and the LVDS converter; the image/audio signal dedicated chip is connected with the display and the LVDS converter respectively.
Preferably, the LVDS converter includes: various types of signal receiving ports, an LVDS signal conversion module and an LVDS signal output port;
the CPU microprocessor is connected with the signal receiving ports of various types; the LVDS signal conversion module is respectively connected with the various types of signal receiving ports and the LVDS signal output port; the LVDS signal output port is connected with the image/audio signal special chip.
Preferably, the image/audio signal dedicated chip includes: an HDMI signal converter;
the HDMI signal converter is respectively connected with the LVDS signal output port and the display.
Preferably, the HDMI signal converter adopts MeIntercom ML-Z300.
Preferably, the HDMI signal converter includes: the LVDS signal receiving port, the HDMI signal conversion module and the HDMI signal output port;
the LVDS signal receiving port is respectively connected with the HDMI signal conversion module and the LVDS signal output port; the HDMI signal output port is respectively connected with the HDMI signal conversion module and the display.
Preferably, the display comprises: the device comprises a backlight setting module, an HDMI signal receiving port and a liquid crystal display screen; the backlight setting module also comprises an LVDS signal processing unit;
the backlight setting module is connected with the CPU microprocessor; the HDMI signal receiving port is respectively connected with the liquid crystal display screen and the HDMI signal output port.
Preferably, the liquid crystal display screen adopts a group-creation vehicle-mounted liquid crystal display screen.
Preferably, the display further comprises: a display power module; and the display power supply module is connected with the liquid crystal display screen.
Preferably, the backlight setting module and the CPU microprocessor are connected by a DVI24+5 line.
Preferably, the CPU microprocessor adopts an IMX8 main chip.
The utility model discloses a following beneficial effect:
the utility model discloses combine LVDS video signal's good difference performance, transmission distance and DVI24+ 5's good physics hasp technique, both guaranteed good video signal transmission ability, guaranteed the anti-seismic performance of video cable again, more be adapted to agricultural machinery equipment's high vibrations environment and use.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a schematic view of a video output control system according to the present invention;
fig. 2 is the pin connection diagram of the video-dedicated chip of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
Referring to fig. 1, the utility model provides a be applied to video output control system of agricultural machinery driving computer, include: CPU microprocessor, LVDS converter, image/audio signal special chip, host power module and display; the CPU microprocessor is respectively connected with the host power supply module, the display and the LVDS converter; the image/audio signal dedicated chip is connected with the display and the LVDS converter respectively.
The CPU microprocessor adopts a main chip of an MIX8 model and is used for sending audio/video data signals or format signals and controlling a display to display corresponding video images; the LVDS converter is used for converting the audio/video data signals or format signals sent by the CPU microprocessor into LVDS signals which have stronger anti-jamming capability, good differential performance and transmission distance;
the special chip for the image/audio signal is used for converting the LVDS converted by the LVDS converter into an HBMI signal, solves the problems that a computer device CICS adopting complex instructions in the prior art is not beneficial to miniaturization of the device, and the intermediate conversion process is subjected to digital-to-analog conversion treatment, loss is caused to the image signal and the like, the utility model discloses only needs to convert the LVDS signal into the HBMI signal which is still a digital signal after being converted through a DVI digital signal interface, the DVI digital signal interface adopts a DVI24+5 model, has good physical locking technology, ensures the anti-seismic performance of the video cable, and is more suitable for being used in the high-vibration environment of agricultural mechanical equipment; the analog signal is still the analog signal after being converted by the VGA analog signal interface, the problems of image signal loss and the like after digital-analog conversion do not exist, and the video output can be realized without complex control instructions.
The LVDS converter includes: various types of signal receiving ports, an LVDS signal conversion module and an LVDS signal output port; the CPU microprocessor is connected with the signal receiving ports of various types; the LVDS signal conversion module is respectively connected with the various types of signal receiving ports and the LVDS signal output port; the LVDS signal output port is connected with the image/audio signal special chip.
The image/audio signal dedicated chip includes: an HDMI signal converter; the HDMI signal converter is respectively connected with the LVDS signal output port and the display. The HDMI signal converter adopts MeIntercom ML-Z300. The HDMI signal converter comprises: the LVDS signal receiving port, the HDMI signal conversion module and the HDMI signal output port; the LVDS signal receiving port is respectively connected with the HDMI signal conversion module and the LVDS signal output port; the HDMI signal output port is respectively connected with the HDMI signal conversion module and the display.
The display, comprising: the device comprises a backlight setting module, an HDMI signal receiving port and a liquid crystal display screen; the backlight setting module also comprises an LVDS signal processing unit; the backlight setting module is connected with the CPU microprocessor through a DVI24+5 line; the HDMI signal receiving port is respectively connected with the liquid crystal display screen and the HDMI signal output port. The liquid crystal display screen adopts a group vehicle-mounted liquid crystal display screen. The display, still include: a display power module; and the display power supply module is connected with the liquid crystal display screen.
The utility model discloses a CPU microprocessor in agricultural machinery 'S computer mainframe controls remote display' S video/audio frequency image and shows, firstly, CPU sends relevant video/audio data signal or format signal (for example AV, TV, VGA, S-video etc.) and sends for the LVDS converter, each type signal reception port in the LVDS converter receives after the signal of polymorphic type at this moment transmits and carries out signal type conversion for LVDS signal conversion module, turn into LVDS signal with video/audio data signal or format signal unification, refer to fig. 2 and show, this signal has the good difference performance and the transmission distance of LVDS video signal, satisfy the circumstances that driving computer mainframe and screen work in agricultural machinery have stronger interference and vibrations more; then output by LVDS signal output port, and send to image/audio signal special chip.
Then, an LVDS signal receiving port in the image/audio signal special chip receives the LVDS signal and transmits the LVDS signal to the HDMI signal conversion module, the LVDS signal is converted into an HDMI signal, and the HDMI signal is output by an HDMI signal output port and is sent to a display.
And finally, the HDMI receiving port in the display receives the HDMI signal and the group-created vehicle-mounted liquid crystal display screen displays the image content. The system comprises a main machine power supply module, a main machine power supply module and a power supply module, wherein the main machine power supply module of the whole system is used for supplying power to the whole main machine and controlling the operation of the whole system; the display power module is used for supplying power for the display, and passes through the backlight that sets up the module adjustment screen in a poor light, because the bright break-make state that goes out and depends on inside many LED of display, consequently, the utility model discloses need provide the constant current source and guarantee the adjustment setting in a poor light of screen.
In addition, the CPU microprocessor can also directly output LVDS signals through the main chip IMX8 and transmit the LVDS signals to the display through a DVI24+5 line, then the main chip IMX8 can control the output current of a constant current source in the display so as to lighten the backlight of the screen, and then the LVDS signals are analyzed by an LVDS signal processing unit in the backlight setting module and displayed by the group-created vehicle-mounted liquid crystal display screen.
To sum up, the utility model designs a compound transmission mode, the good difference performance, transmission distance and DVI24+ 5's that have combined LVDS video signal good physics hasp technique has both guaranteed good video signal transmission ability, has guaranteed the anti-seismic performance of video cable again, and the high vibration environment that more is suitable for agricultural machinery uses.
The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and those skilled in the art should also be able to make various modifications and improvements to the technical solution of the present invention without departing from the spirit of the present invention, and all such modifications and improvements are intended to fall within the scope of the present invention as defined in the appended claims.
Claims (10)
1. A video output control system applied to a traveling computer of agricultural machinery is characterized by comprising: CPU microprocessor, LVDS converter, image/audio signal special chip, host power module and display;
the CPU microprocessor is respectively connected with the host power supply module, the display and the LVDS converter; the image/audio signal dedicated chip is connected with the display and the LVDS converter respectively.
2. The video output control system applied to the agricultural machinery running computer according to claim 1, wherein the LVDS converter comprises: various types of signal receiving ports, an LVDS signal conversion module and an LVDS signal output port;
the CPU microprocessor is connected with the signal receiving ports of various types; the LVDS signal conversion module is respectively connected with the various types of signal receiving ports and the LVDS signal output port; the LVDS signal output port is connected with the image/audio signal special chip.
3. The video output control system applied to the agricultural machinery running computer is characterized in that the image/audio signal special chip comprises: an HDMI signal converter;
the HDMI signal converter is respectively connected with the LVDS signal output port and the display.
4. The video output control system applied to the agricultural machinery running computer as claimed in claim 3, wherein the HDMI signal converter adopts Meintercom ML-Z300.
5. The video output control system applied to the agricultural machinery running computer as claimed in claim 3, wherein the HDMI signal converter comprises: the LVDS signal receiving port, the HDMI signal conversion module and the HDMI signal output port;
the LVDS signal receiving port is respectively connected with the HDMI signal conversion module and the LVDS signal output port; the HDMI signal output port is respectively connected with the HDMI signal conversion module and the display.
6. The video output control system for the agricultural machine driving computer according to claim 5, wherein the display comprises: the device comprises a backlight setting module, an HDMI signal receiving port and a liquid crystal display screen; the backlight setting module also comprises an LVDS signal processing unit;
the backlight setting module is connected with the CPU microprocessor; the HDMI signal receiving port is respectively connected with the liquid crystal display screen and the HDMI signal output port.
7. The video output control system applied to the agricultural machinery driving computer as claimed in claim 6, wherein the liquid crystal display screen adopts a group-creation vehicle-mounted liquid crystal display screen.
8. The video output control system for use with an agricultural machine travel computer of claim 6, wherein the display further comprises: a display power module; and the display power supply module is connected with the liquid crystal display screen.
9. The video output control system applied to the agricultural machinery running computer is characterized in that the backlight setting module and the CPU microprocessor are connected through a DVI24+5 line.
10. The video output control system applied to the agricultural machinery running computer as claimed in claim 1, wherein the CPU microprocessor adopts an IMX8 main chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121319859.0U CN215187080U (en) | 2021-06-15 | 2021-06-15 | Video output control system applied to agricultural machinery driving computer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121319859.0U CN215187080U (en) | 2021-06-15 | 2021-06-15 | Video output control system applied to agricultural machinery driving computer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215187080U true CN215187080U (en) | 2021-12-14 |
Family
ID=79386550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121319859.0U Active CN215187080U (en) | 2021-06-15 | 2021-06-15 | Video output control system applied to agricultural machinery driving computer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215187080U (en) |
-
2021
- 2021-06-15 CN CN202121319859.0U patent/CN215187080U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100367479B1 (en) | Monitor driving apparatus with auxiliary monitor | |
| EP0778516B1 (en) | Hardware independent display device interface | |
| US10447964B2 (en) | Interface conversion circuit, display panel driving method and display apparatus | |
| US8325195B2 (en) | System and method for interfacing graphical information with an information handling system wireless transceiver | |
| US20040218598A1 (en) | Method and apparatus for efficient transmission of multimedia data packets | |
| US20120066425A1 (en) | Multi-device docking with a displayport compatible cable | |
| CN211184115U (en) | Vehicle-mounted display control terminal with multi-channel video display function | |
| CN205754539U (en) | The embedded video capture card of gathered multiclass video signal based on FPGA | |
| WO2017092108A1 (en) | Liquid crystal television apparatus and system | |
| CN201655249U (en) | Integrated audio/video controller for LED display | |
| CN215187080U (en) | Video output control system applied to agricultural machinery driving computer | |
| CN101098436A (en) | Universal HDMI equipment based high definition video image capture display process | |
| KR100471057B1 (en) | portable computer and method for reproducing video signal on screen thereof | |
| CN107707829B (en) | Multi-interface intelligent SDI video conversion box realized based on FPGA | |
| US20040246198A1 (en) | Electronic apparatus and display device power management method | |
| CN206274660U (en) | A kind of processing system for video | |
| CN116939134A (en) | HDMI system based on MIPIDPHY output | |
| CN206993311U (en) | A kind of optical projection system based on portrait layout LCD | |
| EP1736866B1 (en) | Display apparatus with a network connection | |
| US20030210208A1 (en) | Portable computer capable of displaying foreign image signal | |
| CN221081389U (en) | Low-resolution video preview control platform based on MPSoC | |
| US20070005785A1 (en) | Display apparatus and control method thereof | |
| CN218868282U (en) | Multi-adaptive LVDS display screen signal transmission circuit | |
| CN102419700B (en) | Video loop-out device for computers | |
| CN220964965U (en) | Portable video image generator with multi-type signal interface conversion function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |