CN111163344A - Long-distance double-screen interactive entertainment information processing system - Google Patents
Long-distance double-screen interactive entertainment information processing system Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/4104—Peripherals receiving signals from specially adapted client devices
- H04N21/4122—Peripherals receiving signals from specially adapted client devices additional display device, e.g. video projector
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
- G06F3/1454—Digital output to display device ; Cooperation and interconnection of the display device with other functional units involving copying of the display data of a local workstation or window to a remote workstation or window so that an actual copy of the data is displayed simultaneously on two or more displays, e.g. teledisplay
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/4302—Content synchronisation processes, e.g. decoder synchronisation
- H04N21/4307—Synchronising the rendering of multiple content streams or additional data on devices, e.g. synchronisation of audio on a mobile phone with the video output on the TV screen
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
- H04N21/4363—Adapting the video stream to a specific local network, e.g. a Bluetooth® network
- H04N21/43632—Adapting the video stream to a specific local network, e.g. a Bluetooth® network involving a wired protocol, e.g. IEEE 1394
- H04N21/43635—HDMI
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
- H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- General Engineering & Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The invention discloses a long-distance double-screen interactive entertainment information processing system, which comprises a host screen and an interactive screen; a main processor is arranged in the host screen, and a display unit and a touch unit are arranged in the host screen and the interactive screen; the main processor is used for acquiring touch signals of the touch units of the host screen or the interactive screen so as to control the display units of the host screen and the interactive screen to display synchronously. The invention realizes the functions of interconnection, mutual control and interaction of two machines in the back row of the automobile.
Description
Technical Field
The invention relates to the technical field of interactive display, in particular to a long-distance double-screen interactive entertainment information processing system.
Background
In order to add entertainment fun to the back row of people in the automobile, a display screen is respectively arranged behind the seat back pillows of the main driver and the auxiliary driver of the automobile so as to meet the entertainment facilities of the back row of people. In the prior art, there are two main information processing systems for two display screens in the rear row of an automobile:
1) the system of the two display screens works independently, the playing and displaying contents of the two display screens are different, and the sound is completely independent. In this case, if three persons sit in the back row, although the person in the middle seat can select to see the program on the left or right display screen, the sound is not good to handle; if the earphone mode is adopted, people in the middle cannot hear the earphone mode, and if the loudspeaker mode is adopted, the situation of mutual interference exists.
2) The two display screens share one system, one display screen is a host screen, the other display screen is a single display, all operations are performed on the host screen, and the single display cannot operate the machine. In this case, only one person can operate the host screen, which is also inconvenient.
In addition, in the rear row entertainment information processing system of the automobile, the following two problems also exist:
1) the threading positions of the transmission lines of the two display screens are limited, so that the transmission wire harness needs to be small, the threading is convenient, and the wrapping of the seat is not damaged;
2) the transmission lines of the left display screen and the right display screen are relatively long, generally 3-4m, and the signal transmission of the two display screens in the prior art is difficult to realize within the distance.
Disclosure of Invention
The invention aims to provide a long-distance double-screen interactive entertainment information processing system which realizes the functions of interconnection, mutual control and interaction of two machines in the back row of an automobile.
In order to realize the purpose, the following technical scheme is adopted:
a long-distance double-screen interactive entertainment information processing system comprises a host screen and an interactive screen; a main processor is arranged in the host screen, and a display unit and a touch unit are arranged in the host screen and the interactive screen; the main processor is used for acquiring touch signals of the touch units of the host screen or the interactive screen so as to control the display units of the host screen and the interactive screen to display synchronously.
Preferably, the information processing system further includes:
the video signal coding unit is arranged in the host screen, connected with the main processor and used for acquiring a source video signal generated by the main processor, converting the source video signal into an AHD video signal and transmitting the AHD video signal to the interactive screen;
and the video signal decoding unit is internally arranged in the interactive screen and is used for acquiring the AHD video signal converted by the video signal coding unit and decoding the AHD video signal into a preset video signal for the display unit of the interactive screen to display.
Preferably, the information processing system further includes:
the touch signal coding unit is internally arranged in the interactive screen and is used for acquiring an I2C touch signal of the touch unit of the interactive screen, converting the signal into a UART signal and transmitting the UART signal to the host screen;
and the touch signal decoding unit is arranged in the host screen, is connected with the main processor, and is used for acquiring the UART signal converted by the touch signal encoding unit, decoding the UART signal into an I2C touch signal and transmitting the touch signal to the main processor.
Preferably, the source video signal generated by the main processor is an HDMI video signal, and the main processor is provided with an HDMI interface; the video signal encoding unit is set as a first video signal encoding unit and used for converting the HDMI video signal into an AHD video signal.
Preferably, the source video signal generated by the main processor is an LVDS video signal, and the main processor is provided with an LVDS interface; the video signal encoding unit is set as a second video signal encoding unit and is used for converting the LVDS video signal into an AHD video signal.
Preferably, the source video signal generated by the main processor is an eDP video signal, and an eDP interface is arranged on the main processor; the video signal encoding unit is set as a third video signal encoding unit and is used for converting the eDP video signal into an AHD video signal.
Preferably, the source video signal generated by the main processor is an MIPI video signal, and the main processor is provided with an MIPI interface; the video signal encoding unit is set as a fourth video signal encoding unit and used for converting the MIPI video signal into an AHD video signal.
By adopting the scheme, the invention has the beneficial effects that:
two display screens in the present case, one is the host computer screen, one is interactive screen, and the host computer screen passes through encoding into AHD video signal with high definition video signal and transmits interactive screen on, returns the host computer screen after the I2C touch signal of interactive screen passes through encoding into the UART signal simultaneously, and two machines show the content the same, and the audio frequency of broadcast is the same, and two machines can all operate simultaneously. Compared with the prior art, the two host computer screens are used for realizing the functions of the two host computer screens, the cost is saved, and meanwhile, the two machines are interconnected, mutually controlled and interacted, so that the entertainment is increased.
In addition, the single-line transmission is realized by converting the source video signal generated by the main processor into an AHD format, and the long-distance transmission (3-4m) is realized by converting the I2C touch signal of the touch unit into a UART format, so that the number of transmission lines is minimized while the long-distance transmission is satisfied, and the threading in the automobile seat is facilitated.
Drawings
FIG. 1 is a schematic overview of the present invention;
FIG. 2 is a schematic diagram of embodiment 1 of the present invention;
FIG. 3 is a schematic diagram of embodiment 2 of the present invention;
FIG. 4 is a schematic diagram of embodiment 3 of the present invention;
FIG. 5 is a schematic diagram of embodiment 4 of the present invention;
FIG. 6 is a schematic view of the mounting structure of the present invention;
wherein the figures identify the description:
1-a host screen, 2-an interactive screen,
3-a main processor, 4-a display unit,
5-touch unit, 6-video signal coding unit,
7-a video signal decoding unit, 8-a touch signal encoding unit,
9-touch signal decoding unit, 10-transmission line.
Detailed Description
The invention is described in detail below with reference to the figures and the specific embodiments.
Referring to fig. 1 to 6, the invention provides a long-distance double-screen interactive entertainment information processing system, which comprises a host screen 1 and an interactive screen 2; a main processor 3 is arranged in the host screen 1, and a display unit 4 and a touch unit 5 are arranged in the host screen 1 and the interactive screen 2; the main processor 3 is configured to obtain a touch signal of the touch unit 5 of the host screen 1 or the interactive screen 2, so as to control the display units 4 of the host screen 1 and the interactive screen 2 to display synchronously.
The main processor 3 is realized by using an ARM system architecture main chip, and certainly, the present invention is not limited to using an ARM system architecture main chip, and can also be realized by using a main chip of another system, as long as the main chip can process touch signals, video signals, audio signals and the like of a display screen to realize a touch display function, which should be understood as a simple deformation or transformation of the present invention, and falls into the protection scope of the present invention.
Wherein the information processing system further comprises:
the video signal coding unit 6 is arranged in the host screen 1, connected with the main processor 3, and used for acquiring a source video signal generated by the main processor 3, converting the source video signal into an AHD video signal and transmitting the AHD video signal to the interactive screen 2;
and the video signal decoding unit 7 is arranged in the interactive screen 2 and is used for acquiring the AHD video signal converted by the video signal encoding unit 6 and decoding the AHD video signal into a preset video signal for being displayed by the display unit 4 of the interactive screen 2.
Due to the video output format of the main chip of the ARM system architecture, namely, the source video signal, such as high definition multimedia signal interface format (HDMI), low voltage differential signaling format (LVDS), enhanced display port (eDP), mobile industry processor interface format (MIPI), a part of the source video signal cannot be transmitted over a long distance, such as LVDS and eDP; the other part can transmit in a long distance, but needs more transmission lines 10, which is not beneficial to threading installation in the automobile seat, such as HDMI.
AHD is a reliable transmission technology of high-definition video signal, AHD technology can realize the reliable transmission of the high-definition video signal of ultra-long distance (500 meters) on the existing analog transmission line; the method adopts advanced Y/C signal separation and analog filtering technology, can effectively reduce color noise of a high-frequency region, and has better image reducibility. Compared with the traditional analog high-definition product, the quality of the monitoring image of the AHD has qualitative leap and improvement, and the highest definition can be equal to the full high-definition level of network high-definition 1080P (1920 x 1280). Therefore, when the host screen 1 transmits the video signal to the interactive screen 2, the source video signal (HDMI/LVDS/eDP/MIPI) is encoded into an AHD video signal and then transmitted, and the problem that long-distance transmission cannot be achieved is solved. Without such processing, 1080P (1920 × 1280) high-definition digital video is transmitted through a large number of video lines, 10 video lines in a small number, and 20 video lines in a large number, so that the wiring harness is too large to be installed by threading on an automobile seat.
The main processor 3 is used for acquiring a touch signal of the host screen 1 or a touch signal of the interactive screen 2 to control the display unit 4 of the host screen 1 and the interactive screen 2 to play and display synchronously, and before the main processor 3 transmits a video signal to the interactive screen 2, the main processor converts a source video signal into an AHD video signal and then transmits the AHD video signal, so that the long-distance transmission of the video signal is realized:
1) the method is used for acquiring an I2C touch signal of the touch unit 5 of the host screen 1, generating a video signal and then dividing the video signal into two paths: one path is a preset video signal, specifically an eDP video signal, which is transmitted to the display unit 4 of the host screen 1; the other path is processed into an input format which can be encoded by the video signal encoding unit 6, such as HDMI/LVDS/eDP/MIPI, that is, the source video signal is converted into an AHD video signal by the video signal encoding unit 6, and then is decoded by the video signal decoding unit 7 and transmitted to the display unit 4 of the interactive screen 2, so that the host screen 1 and the interactive screen 2 are synchronously played.
2) The touch control unit is used for acquiring touch control signals transmitted by the touch control unit 5 of the interactive screen 2, I2C touch control signals generated by the touch control unit 5 of the interactive screen 2 are encoded into a UART format by the touch control signal encoding unit 8 and then transmitted to the host screen 1, the touch control signals are decoded by the touch control signal decoding unit 9 in the host screen 1 and then transmitted to the main processor 3 for processing, video signals are generated in the main processor 3 and then divided into two paths, one path is transmitted to the display unit 4 of the host screen 1, the other path is transmitted to the display unit 4 of the interactive machine 2, and the transmission modes of the two paths are the same as those of the two paths in the step (1), which.
The source video signal generated by the main processor 3, different video signal interfaces, different implementation manners, and correspondingly different video signal encoding units:
example 1:continuing to refer to fig. 2, the source video signal generated by the main processor 3 is an HDMI video signal, and the main processor 3 is provided with an HDMI interface; the video signal encoding unit 6 is a first video signal encoding unit, and is configured to convert an HDMI video signal into an AHD video signal.
Example 2:continuing to refer to fig. 3, the source video signal generated by the main processor 3 is an LVDS video signal, and the main processor 3 is provided with an LVDS interface; the video signal encoding unit 6 is set as a second video signal encoding unit for converting the LVDS video signal into an AHD video signal.
Example 3:continuing to refer to fig. 4, the source video signal generated by the main processor 3 is an eDP video signal, and an eDP interface is arranged on the main processor 3; the video signal encoding unit 6 is a third video signal encoding unit for converting an eDP video signal into an AHD video signal.
Example 4:continuing to refer to fig. 5, the source video signal generated by the main processor 3 is an MIPI video signal, and the main processor 3 is provided with an MIPI interface; the video signal encoding unit 6 is a fourth video signal encoding unit, and is configured to convert the MIPI video signal into an AHD video signal.
Further, the information processing system further includes:
the touch signal encoding unit 8 is internally arranged in the interactive screen 2, and is used for acquiring an I2C touch signal of the touch unit 5 of the interactive screen 2, converting the signal into a UART signal and transmitting the UART signal to the host screen 1, wherein the UART signal is not limited to be converted, but also can be converted into other transmission signals, and as long as the UART signal can be adapted to long-distance transmission, the UART signal encoding unit is understood to be simple deformation or conversion in the present case and falls into the protection range of the present case;
and a touch signal decoding unit 9, which is disposed in the host screen 1 and connected to the host processor 3, and is configured to acquire the UART signal converted by the touch signal encoding unit 8, decode the UART signal into an I2C touch signal, and transmit the touch signal to the host processor 3.
The touch signal encoding unit 8 and the touch signal decoding unit 9 cooperate to convert the I2C touch signal into a UART signal and then transmit the UART signal, so that long-distance transmission of the touch signal is realized:
the touch signal output from the touch unit 5 is in an I2C format with 2 lines, two lines of an I2C bus are an SDA serial data line) and an SCL (serial clock line), and the I2C bus is not suitable for long-distance transmission, and the transmission distance is 10-20cm, so that the touch signal of the interactive screen 2 cannot be sent to the host screen 1.
The I2C signal is encoded into a UART signal, two lines of the UART are Rx (receiving data) and Tx (sending data) and can be transmitted in a long distance, and the transmission distance can be increased to 3-4m by using the UART signal also by using two lines (not adding wiring harnesses). The I2C touch signal transmitted from the interactive screen 2 is first converted into a signal in UART format by the touch signal encoding unit 8 and then transmitted back to the host screen 1, and the touch signal decoding unit 9 in the host screen 1 decodes the signal in UART format into an I2C touch signal and then transmits the touch signal to the host processor 3, thereby realizing long-distance transmission of the touch signal.
After the scheme is improved, the transmission lines 10 of the host screen 1 and the interactive screen 2 can be controlled within 10 lines respectively: power lines, ground lines, audio lines, video lines, USB + lines, USB-lines, UART + lines, UART-lines, REST lines, INT lines. The audio signal is transmitted through an audio line, the video signal is transmitted through a video line, and the touch signal is transmitted through a UART + line and a UART-line. The vehicle-mounted long-distance double-screen interaction function can be realized through the coding and decoding processing modes (touch signals and video signals). The long-distance transmission capability of the USB and the audio are matched, so that the system can be suitable for scene application of an automobile rear entertainment information processing system.
With continued reference to fig. 6, in a specific embodiment, the transmission line 10 connected to the host screen 1 penetrates through the joint of the seat top cover and penetrates out of the bottom of the seat; the transmission line 10 of connecting interactive screen 2 penetrates from the seat bottom to wear out from the concatenation department of seat top foreskin, and the present case improves the back pencil and obviously reduces, is favorable to threading installation in the seat foreskin.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A long-distance double-screen interactive entertainment information processing system is characterized by comprising a host screen and an interactive screen; a main processor is arranged in the host screen, and a display unit and a touch unit are arranged in the host screen and the interactive screen; the main processor is used for acquiring touch signals of the touch units of the host screen or the interactive screen so as to control the display units of the host screen and the interactive screen to display synchronously.
2. The long-distance dual-screen interactive entertainment information processing system of claim 1, further comprising:
the video signal coding unit is arranged in the host screen, connected with the main processor and used for acquiring a source video signal generated by the main processor, converting the source video signal into an AHD video signal and transmitting the AHD video signal to the interactive screen;
and the video signal decoding unit is internally arranged in the interactive screen and is used for acquiring the AHD video signal converted by the video signal coding unit and decoding the AHD video signal into a preset video signal for the display unit of the interactive screen to display.
3. The long-distance dual-screen interactive entertainment information processing system of claim 1, further comprising:
the touch signal coding unit is internally arranged in the interactive screen and is used for acquiring an I2C touch signal of the touch unit of the interactive screen, converting the signal into a UART signal and transmitting the UART signal to the host screen;
and the touch signal decoding unit is arranged in the host screen, is connected with the main processor, and is used for acquiring the UART signal converted by the touch signal encoding unit, decoding the UART signal into an I2C touch signal and transmitting the touch signal to the main processor.
4. The system of claim 2, wherein the source video signal generated by the main processor is an HDMI video signal, and the main processor is provided with an HDMI interface; the video signal encoding unit is set as a first video signal encoding unit and used for converting the HDMI video signal into an AHD video signal.
5. The long-distance double-screen interactive entertainment information processing system according to claim 2, wherein the source video signal generated by the main processor is an LVDS video signal, and the main processor is provided with an LVDS interface; the video signal encoding unit is set as a second video signal encoding unit and is used for converting the LVDS video signal into an AHD video signal.
6. The long-distance double-screen interactive entertainment information processing system according to claim 2, wherein the source video signal generated by the main processor is an eDP video signal, and an eDP interface is provided on the main processor; the video signal encoding unit is set as a third video signal encoding unit and is used for converting the eDP video signal into an AHD video signal.
7. The long-distance double-screen interactive entertainment information processing system of claim 2, wherein the source video signal generated by the main processor is an MIPI video signal, and the main processor is provided with an MIPI interface; the video signal encoding unit is set as a fourth video signal encoding unit and used for converting the MIPI video signal into an AHD video signal.
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| CN111756356A (en) * | 2020-07-08 | 2020-10-09 | 上海威固信息技术股份有限公司 | Program-controlled microstrip filter based on UART protocol and sine wave generation method |
| CN112104946A (en) * | 2020-08-21 | 2020-12-18 | 黄冈格罗夫氢能汽车有限公司 | Audio and video entertainment sound management system and strategy for fuel cell hydrogen energy automobile |
| CN115946632A (en) * | 2023-01-10 | 2023-04-11 | 润芯微科技(江苏)有限公司 | Multi-screen display central control entertainment system and display method |
| CN115946632B (en) * | 2023-01-10 | 2023-08-18 | 润芯微科技(江苏)有限公司 | Multi-screen display central control entertainment system and display method |
| CN116055660A (en) * | 2023-04-03 | 2023-05-02 | 广州聚融电子科技有限公司 | Vehicle-mounted video entertainment system capable of realizing multi-screen interaction |
| CN116055660B (en) * | 2023-04-03 | 2023-09-29 | 广州聚融电子科技有限公司 | Vehicle-mounted video entertainment system capable of realizing multi-screen interaction |
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