CN203350861U - Vehicle separation screen multimedia system - Google Patents
Vehicle separation screen multimedia system Download PDFInfo
- Publication number
- CN203350861U CN203350861U CN 201320462725 CN201320462725U CN203350861U CN 203350861 U CN203350861 U CN 203350861U CN 201320462725 CN201320462725 CN 201320462725 CN 201320462725 U CN201320462725 U CN 201320462725U CN 203350861 U CN203350861 U CN 203350861U
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- lvds
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- separation screen
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Abstract
The utility model discloses a vehicle separation screen multimedia system which comprises a host side and a separation screen side which are connected, wherein the host side is provided with an ARM processor module; the separation screen side comprises a display screen, a power module and a touch screen module used for input operation; the host side is provided with a low voltage differential signaling (LVDS) sending module connected with the ARM processor module; the separation screen side is provided with an LVDS receiving module which is respectively connected with the display screen, the power module and the touch screen module; the LVDS sending module is connected with the LVDS receiving module by an LVDS connecting piece. According to the vehicle separation screen multimedia system, the separation screen side is connected with the host side by the LVDS connecting piece, so that the system can transmit one-way digital video signals and two-way control data; the system adopts all-digital signal encoding and decoding and transmission, thus being long in transmission distance, high in speed and strong in anti-interference capability; the system can guarantee high-quality video image signals, and is low in noise/ electromagnetic interference, low in power consumption and low in voltage, thus realizing lossless transmission of high-definition video in deed.
Description
Technical field
The utility model relates to a kind of board separation screen multimedia system.
Background technology
The dirigibility that some auto vendors arrange on automobile in order to meet video and audio product, reduce the requirement that instrument desk is arranged, the setting that increasing producer can adopt display screen to separate with main frame.The implementation of separating at present screen has following two schemes.Scheme 1:ARM processor chips are arranged on separates the screen side.The RGB888 signal (being that color depth is 8 rgb signal) of arm processor chip output directly outputs to display screen, the advantage of this kind of scheme is that display screen rgb video signal cabling is shorter, weak point is to separate screen and main frame control line and signal wire before can increase, signal transmission attenuation is large, wire harness is subject to outside electromagnetic interference, and EMC test is difficult for passing through etc.Scheme 2:ARM processor chips are arranged on host computer side.The RGB888 digital signal of arm processor output will be connected to and separate screen by connecting line after video DAC chip converts YUV or RGB simulating signal to, separates after this side of screen needs again the ADC chip to convert the RGB888 signal to and is defeated by display screen.Advantage is that separation screen and main frame wire harness can reduce; Shortcoming is that the RGB888 signal can be through DAC and ADC conversion, and video signal losses and distortion are large, and analog signal transmission is subject to external interference, and image effect is poor.
LVDS, Low Voltage Differential Signaling, be a kind of technology of Low Voltage Differential Signaling interface.A kind of digital signal transmission mode that its shortcoming such as power consumption is large when overcoming with Transistor-Transistor Logic level mode transmission broadband high code rate data, the EMI electromagnetic interference (EMI) is large that are U.S. NS companies (National Semiconductor) is developed.The LVDS output interface utilizes low-down voltage swing (about 350mV) to carry out the transmission of data, i.e. low-voltage differential signal transmission by difference on two PCB cablings or a pair of balanced cable.Adopt the LVDS output interface, can so that signal on difference PCB line or balanced cable with the speed rates of hundreds of Mbit/s, owing to adopting low pressure and low current type of drive, therefore, realized low noise and low-power consumption.
The utility model content
In order to address the above problem, the utility model provides a kind of novel on-vehicle to separate the design proposal of screen multimedia system.
A kind of board separation screen multimedia system, comprise interconnective host side and separate the screen end, host side is provided with the arm processor module, separate the screen end and comprise display screen and connected supply module, and for the touch screen module of input operation, described host side is provided with the LVDS sending module be connected with the arm processor module, separate the screen end and be provided with the LVDS receiver module be connected with display screen, supply module and touch screen module respectively, the LVDS sending module is connected by the LVDS web member with the LVDS receiver module.
Described LVDS sending module comprises the LVDS transmitter be connected with the arm processor module, and the LVDS transmitting terminal interface be connected with the LVDS transmitter, and LVDS transmitting terminal interface is connected with the LVDS receiver module by the LVDS web member.
Described LVDS receiver module comprises the LVDS receiver, and the LVDS receiving end interface be connected with the LVDS receiver, and LVDS receiving end interface is connected with the LVDS sending module by the LVDS web member.
In sum, the utlity model has following beneficial effect: (1) is separated the screen end and is connected by the LVDS web member with host side, can transmit unidirectional digital video signal and two-way control data; (2) adopt complete digital signal encoding and decoding and transmission, long transmission distance, transmission speed is high, and antijamming capability is strong; (3) can guarantee the high-quality video picture intelligence, low noise/low electromagnetic interference (EMI), low-power consumption, low-voltage, realize the harmless transmission of real HD video.
The accompanying drawing explanation
Fig. 1 is the system framework figure of a kind of board separation screen multimedia system described in the utility model.
Embodiment
In order to allow those skilled in the art understand better the technical solution of the utility model, below the utility model is further elaborated.
As shown in Figure 1, the utility model has disclosed a kind of board separation screen multimedia system, comprise interconnective host side and separate the screen end, host side is provided with the arm processor module, separate the screen end and comprise display screen and connected supply module, and for the touch screen module of input operation, described host side is provided with the LVDS sending module be connected with the arm processor module, separate the screen end and be provided with the LVDS receiver module be connected with display screen, supply module and touch screen module respectively, the LVDS sending module is connected by the LVDS web member with the LVDS receiver module.
Described LVDS sending module comprises the LVDS transmitter be connected with the arm processor module, and the LVDS transmitting terminal interface be connected with the LVDS transmitter, and LVDS transmitting terminal interface is connected with the LVDS receiver module by the LVDS web member.
Described LVDS receiver module comprises the LVDS receiver, and the LVDS receiving end interface be connected with the LVDS receiver, and LVDS receiving end interface is connected with the LVDS sending module by the LVDS web member.
RGB888 digital video signal and backlight illumination control signal when the output of arm processor module, be encoded into the LVDS data through LVDS transmitter (IC).And send to the LVDS receiver module by LVDS transmitting terminal interface and LVDS web member.The LVDS receiver module also can receive the LVDS data of the touch screen operation signal of self-separation screen end simultaneously.
After the LVDS receiver module receives by the LVDS receiver, be decoded into RGB 888 digital video signals and backlight illumination control signal, giving respectively display screen demonstration image and supply module adjusts backlight, meanwhile this LVDS receiver can also, the touch screen operation signal (I2C signal) of touch screen module output, be encoded into the LVDS data transmission and process to host side.
The present embodiment is more excellent embodiment of the present utility model, and the part be not described in detail all adopts known mature technology.It should be noted that; in the situation that do not deviate from the utility model spirit and essence thereof; those of ordinary skill in the art are when making various corresponding changes and distortion according to the utility model, but these changes and distortion all should belong to the protection domain of the appended claim of the utility model.
Claims (3)
1. a board separation is shielded multimedia system, comprise interconnective host side and separate the screen end, host side is provided with the arm processor module, separate the screen end and comprise display screen and connected supply module, and for the touch screen module of input operation, it is characterized in that, described host side is provided with the LVDS sending module be connected with the arm processor module, separate the screen end and be provided with the LVDS receiver module be connected with display screen, supply module and touch screen module respectively, the LVDS sending module is connected by the LVDS web member with the LVDS receiver module.
2. a kind of board separation according to claim 1 is shielded multimedia system, it is characterized in that, described LVDS sending module comprises the LVDS transmitter be connected with the arm processor module, and the LVDS transmitting terminal interface be connected with the LVDS transmitter, LVDS transmitting terminal interface is connected with the LVDS receiver module by the LVDS web member.
3. a kind of board separation according to claim 2 is shielded multimedia system, it is characterized in that, described LVDS receiver module comprises the LVDS receiver, and the LVDS receiving end interface be connected with the LVDS receiver, and LVDS receiving end interface is connected with the LVDS sending module by the LVDS web member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320462725 CN203350861U (en) | 2013-07-31 | 2013-07-31 | Vehicle separation screen multimedia system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320462725 CN203350861U (en) | 2013-07-31 | 2013-07-31 | Vehicle separation screen multimedia system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203350861U true CN203350861U (en) | 2013-12-18 |
Family
ID=49750732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320462725 Expired - Fee Related CN203350861U (en) | 2013-07-31 | 2013-07-31 | Vehicle separation screen multimedia system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203350861U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104268116A (en) * | 2014-09-24 | 2015-01-07 | 重庆长安汽车股份有限公司 | Communication mode for vehicle-mounted entertainment host and split type touch screen |
| CN114390158A (en) * | 2021-12-20 | 2022-04-22 | 浙江零跑科技股份有限公司 | Method for inhibiting vehicle-mounted video interference |
-
2013
- 2013-07-31 CN CN 201320462725 patent/CN203350861U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104268116A (en) * | 2014-09-24 | 2015-01-07 | 重庆长安汽车股份有限公司 | Communication mode for vehicle-mounted entertainment host and split type touch screen |
| CN114390158A (en) * | 2021-12-20 | 2022-04-22 | 浙江零跑科技股份有限公司 | Method for inhibiting vehicle-mounted video interference |
| CN114390158B (en) * | 2021-12-20 | 2024-06-11 | 浙江零跑科技股份有限公司 | Method for inhibiting vehicle-mounted video interference |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 516006 Guangdong province Huizhou City Zhongkai high tech Zone and five West Road No. 103 Patentee after: HUIZHOU DESAY SV AUTOMOTIVE Co.,Ltd. Address before: 516006 Guangdong province Huizhou City Zhongkai high tech Zone and five West Road No. 103 Patentee before: HUIZHOU DESAY SV AUTOMOTIVE Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131218 |