CN209305502U - Based on the circuit and device for controlling information iteration in video realization - Google Patents
Based on the circuit and device for controlling information iteration in video realization Download PDFInfo
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- CN209305502U CN209305502U CN201821926471.5U CN201821926471U CN209305502U CN 209305502 U CN209305502 U CN 209305502U CN 201821926471 U CN201821926471 U CN 201821926471U CN 209305502 U CN209305502 U CN 209305502U
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Abstract
The utility model discloses a kind of based on the circuit and device of controlling information iteration in video realization, and the utility model obtains the situation of remote of vehicle by micro-control unit, and the situation of remote is sent to instrument video superposition module；Video conversion module controls vision signal in obtaining, and the middle control vision signal is converted into the first signal, and first signal is sent to the instrument video superposition module；The instrument video superposition module, draw the situation of remote, and the situation of remote by first signal and after drawing carries out superposition, it realizes and the information of automobile middle control is shown in instrument, the display of instrument panel and middle control are linked, facilitate driver by viewing instrument panel understand in the state controlled, not only the user experience is improved, more reduces driver because controlling in operation simultaneously, watching instrument bring security risk.
Description
Technical field
The utility model relates to technical field of automotive electronics more particularly to it is a kind of based on video realize in control information iteration
Circuit and device.
Background technique
With the improvement of living standards, the owning amount and popularity of automobile are higher and higher；With the development of science and technology people
Visualization and the raising of intelligent demand for automobile instrument and middle control, simulate the liquid crystal digital of instrument and the intelligence of middle control
Change degree is also higher and higher.Middle control large-size screen monitors are often used in display map and various amusement functions, if in startup procedure continually
It turns one's head and watches the middle control large-size screen monitors on right side, it is possible that traffic safety hidden danger.Therefore map and entertainment information are shown to instrument
On table display screen, allow be driven in pay attention to environment while, the eye that slightly makes a movement is fine, and focus moment is put into instrument display screen
On, i.e., it is observed that map and various amusement function information, become the pursuing of goal of major vehicle-mounted middle control and instrument manufacturer.
Existing automobile instrument major part or combination instrument do not interact too much with middle control, independent to realize respective function
Can, information sharing can not be carried out with middle control, some can realize simple data interaction and communication by hard-wire transfers such as buses,
This not only results in bad user experience, but will cause user operate at the same time in control, viewing instrument when distraction, reduce
The safety of trip.
Above content is only used for auxiliary and understands the technical solution of the utility model, does not represent and recognizes that above content is existing
Technology.
Utility model content
The main purpose of the utility model is to provide it is a kind of based on video realize in control information iteration circuit and device,
Aim to solve the problem that the technical problem that the video information of automobile middle control in the prior art can not be shared with instrument.
To achieve the above object, the utility model provides a kind of based on the circuit for controlling information iteration in video realization, described
Circuit includes micro-control unit, video conversion module and instrument video superposition module；Wherein,
The micro-control unit is sent to the instrument for obtaining the situation of remote of vehicle, and by the situation of remote
Video superposition module；
The middle control vision signal is converted into the first letter for controlling vision signal in obtaining by the video conversion module
Number, and first signal is sent to the instrument video superposition module；
The instrument video superposition module, for drawing the situation of remote, and by first signal and after drawing
Situation of remote carries out superposition.
Preferably, the video conversion module includes middle control Video Output Modules and instrument video input module, it is described in
Control Video Output Modules and it is middle control and the instrument video input module be separately connected, the instrument video input module with it is described
The connection of instrument video superposition module, the middle control Video Output Modules are used to convert the middle control vision signal of the middle control output
For FPD-Link signal；The instrument video input module is used to the FPD-Link signal being converted to first signal.
Preferably, the middle control Video Output Modules include that the first video interface chip LT9211 and video interface convert core
Piece DS90UB947；The first video interface chip LT9211 and the video interface conversion chip DS90UB947 and it is described in
Control is separately connected, and the video interface conversion chip DS90UB947 is connect with the instrument video input module.
Preferably, the middle control Video Output Modules include video interface conversion chip DS90UR927, video interface conversion
One of chip DS90UR925, video interface conversion chip DS90UR905, video interface conversion chip DS90UR907.
Preferably, the instrument video input module includes that video interface conversion chip DS90UB948 and the second video connect
Mouth chip LT9211；The video interface conversion chip DS90UB948 and the video interface conversion chip DS90UB947 and institute
It states the second video interface chip LT9211 to be separately connected, the second video interface chip LT9211 and the instrument video superposition
Module connection.
Preferably, the instrument video input module includes video interface conversion chip DS90UR910.
Preferably, the circuit further includes instrument display screen, and the instrument display screen is for showing the image after superposition.
Preferably, the instrument video superposition module includes instrument central processing unit, the instrument central processing unit and institute
Video conversion module is stated to connect by utilizing camera interface.
The utility model also proposes a kind of device based on control information iteration in video realization, described based in video realization
The device of control information iteration includes as described above based on the circuit for controlling information iteration in video realization.
The utility model obtains the situation of remote of vehicle by micro-control unit, and the situation of remote is sent to instrument
Video superposition module；Video conversion module controls vision signal in obtaining, and the middle control vision signal is converted into the first signal, and
First signal is sent to the instrument video superposition module；The instrument video superposition module draws the vehicle condition letter
Breath, and the situation of remote by first signal and after drawing carries out superposition, realizes the information of automobile middle control being shown to instrument
In table, the display of instrument panel and middle control are linked, facilitates driver by the state controlled in viewing instrument panel understanding, is not only promoted
User experience, more reduce driver because and meanwhile operation in control, viewing instrument bring security risk.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, the structure that can also be shown according to these attached drawings obtains other attached drawings.
Fig. 1 is a kind of functional module based on one embodiment of circuit for controlling information iteration in video realization of the utility model
Figure；
Fig. 2 is the structural schematic diagram of the first embodiment of video conversion module in Fig. 1；
Fig. 3 is the structural schematic diagram of the second embodiment of video conversion module in Fig. 1；
Fig. 4 is the effect picture after middle control video information and situation of remote superposition.
The embodiments will be further described with reference to the accompanying drawings for the realization, functional characteristics and advantage of the utility model aim.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describing, it is clear that described embodiment is only a part of the embodiment of the utility model, rather than all
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, fall within the protection scope of the utility model.
It is to be appreciated that if related in the utility model embodiment directionality instruction (such as upper and lower, left and right, it is preceding,
Afterwards ...), then directionality instruction is only used for explaining opposite between each component under a certain particular pose (as shown in the picture)
Positional relationship, motion conditions etc., if the particular pose changes, directionality instruction is also correspondingly changed correspondingly.
In addition, if relating to the description of " first ", " second " etc. in the utility model embodiment, " first ", " the
Two " etc. description is used for description purposes only, and is not understood to indicate or imply its relative importance or is implicitly indicated meaning
The quantity of the technical characteristic shown." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least one
A this feature.It in addition, the technical solution between each embodiment can be combined with each other, but must be with ordinary skill
Based on personnel can be realized, this technical side will be understood that when the combination of technical solution appearance is conflicting or cannot achieve
The combination of case is not present, also not within the protection scope of the requires of the utility model.
The utility model provides a kind of circuit based on control information iteration in video realization, referring to Fig.1, in an embodiment
In, the circuit includes micro-control unit 200, video conversion module 100 and instrument video superposition module 300；Wherein,
The micro-control unit 200 is sent to the instrument for obtaining the situation of remote of vehicle, and by the situation of remote
Table video superposition module 300；
The middle control vision signal is converted into first for controlling vision signal in obtaining by the video conversion module 100
Signal, and first signal is sent to the instrument video superposition module 300；
The instrument video superposition module 300, for drawing the situation of remote, and by first signal and after drawing
Situation of remote carry out superposition.
The micro-control unit 100 (Microcontroller Unit, MCU) is MCU minimum system, the microcontroller list
First 100 responsible power managements and by the situation of remote of vehicle by controller LAN (Controller Area Network,
CAN) bus and other hardware, which explain, carrys out and is sent to instrument CPU.
The letter of the instrument such as the situation of remote, including but not limited to speed, mileage, oil mass, various alarms, various settings
Breath.
The middle control vision signal, media player signal, Bluetooth signal and navigation signal including middle control.Specifically,
The including but not limited to title of the song of media player, singer, cover, broadcast state etc., bluetooth telephone function dial phone, connect
It answers a call, incoming information, title of the song, broadcast state of Bluetooth music function etc., the letter such as map path of navigation, direction information, hypervelocity
Breath.
The instrument video superposition module 300 include instrument central processing unit (Central Processing Unit,
CPU), the instrument CPU is connect with the video conversion module 100 by camera interface, and the instrument CPU is for driving instrument
Table display screen and the various situation of remote of drafting are also responsible for the video information of middle control output and situation of remote carrying out superposition.
Further, the circuit further includes instrument display screen 400, and the instrument display screen 400 is for after showing superposition
Image.
It should be noted that the instrument display screen can be liquid crystal display (Liquid Crystal Display,
LCD) or organic light emitting diode display (Organic Light-Emitting Diode, OLED), it is responsible for the instrument
The content that CPU is drawn is reduced into the image that human eye can identify.
In the concrete realization, the video conversion module 100 includes middle control Video Output Modules 110 and instrument video input
Module 120, the middle control Video Output Modules 110 are separately connected with middle control 500 and the instrument video input module 120, institute
It states instrument video input module 120 to connect with the instrument video superposition module 300, the middle control Video Output Modules 110 are used
In by it is described it is middle control output middle control vision signal be converted to FPD video serial communication (Flat Panel Display Link,
FPD-Link) signal；The instrument video input module 120 is used to the FPD-Link signal converting first signal.
It is understood that middle control is typically mounted at automobile cab front, it is a kind of gather other than driver behavior
Most of control button set panel.The multimedias such as picture, video in movable storage device can be read directly in middle control
Data in movable storage device are stored the storage unit to middle control by information.
Instrument is then made of various instrument, indicator, warning lamp alarm etc., and required automobilism is provided for driver
Parameter information.The information that the conventional instrument of general automobile is shown has speedometer, revolution counter, oil pressure gauge, water-thermometer, combustion
Oil meter, charging table etc..
Since middle control host and instrument are respectively in the different position of vehicle, transmission path is too long, and does not have on the market at present
Display serial line interface (Mobile Industry Processor Interface Display Serial can directly be received by having
Interface, MIPI DSI)/Low Voltage Differential Signal (Low-Voltage Differential Signaling, LVDS)/24
The CPU of the video interfaces such as position three primary colors (R-8bit, G-8bit, B-8bit, RGB888), it is therefore desirable in middle control host and instrument
Between increase video conversion module, allow the video information of middle control by superposition into instrument.
It should be noted that first signal be instrument CPU can direct received signal, international telecommunication association in this way view
Frequency marking standard (ITU-RBT656/1120, BT656/1120) signal and (the Mobile Industry of video camera serial line interface 2
Processor Interface Camera Serial Interface 2, MIPI_CSI2) signal etc..
The FPD-Link signal is Low Voltage Differential Signal, and specifically, FPD-Link signal is FPD- in the present embodiment
Link III signal, FPD-Link III can be used for the interface of numerous automobile applications, can be carried out point-to-point transmission of video, can pass through
Inexpensive cable (twisted pair or coaxial cable) supports high-definition digital video transmission.
The working principle of the present embodiment is, after vehicle powers on, MCU initially enters initialization process, and startup power supply manages mould
Block carries out power on operation to each module, as instrument display screen, instrument video superposition module, MCU peripheral components such as band electrically erasable can
The power supply of the modules such as read-write memory, bus transceiver is programmed, and the vehicle condition solution from vehicle is received by CAN and related rigid line
It releases, after the instrument CPU in instrument video superposition module is also initialized successfully, just draws the information from MCU, simultaneously
The video information that centering control transmits is shown after carrying out superposition by instrument display screen.
The present embodiment obtains the situation of remote of vehicle by micro-control unit, and the situation of remote is sent to instrument view
Frequency superposition module；Video conversion module controls vision signal in obtaining, and the middle control vision signal is converted into the first signal, and will
First signal is sent to the instrument video superposition module；The instrument video superposition module, draws the situation of remote,
And the situation of remote by first signal and after drawing carries out superposition, realizes the information of automobile middle control being shown to instrument
In, the display of instrument panel and middle control are linked, facilitates driver by the state controlled in viewing instrument panel understanding, not only improves
User experience, more reduce driver because and meanwhile operation in control, viewing instrument bring security risk.
It is the structural schematic diagram of the first embodiment of video conversion module in Fig. 1 referring to Fig. 2, Fig. 2.In the present embodiment, institute
Stating middle control Video Output Modules 110 includes the first video interface chip LT9211 and video interface conversion chip DS90UB947；Institute
It states the first video interface chip LT9211 and video interface conversion chip DS90UB947 and the middle control is separately connected, institute
Video interface conversion chip DS90UB947 is stated to connect with the instrument video input module.
The first video interface chip LT9211 is used for the MIPI DSI of the MIPI interface output of the middle control full will T7 of CPU
Signal is converted to LVDS signal, and the video interface conversion chip DS90UB947 is used to the LVDS signal being converted to FPD-
Link signal.
It should be understood that video interface chip LT9211 has single port MIPI DSI or CSII-2 transmitter, there is 1
High-frequency clock channel and 1~4 configurable high-speed data channel, maximum functional can support height in the lane 1.8Gb/s/
Up to the total bandwidth of 7.2Gb/s, may be implemented MIPI DSI signal being converted to LVDS signal, and LVDS signal is converted to
BT656 or BT1120 signal.
Video interface conversion chip DS90UB947 is LVDS interface (the Open LVDS Display of a opening
Interface, OpenLDI) to FPD-Link III bridge device, it and FPD-Link III DS90UB940/DS90UB948
Deserializer is used cooperatively, and provides single channel by the economical and practical single-ended coaxial or 100 Ω difference shielded twisted-pair cables of 50 Ω
Or dual channel high speed serial data stream.FPD-Link III interface is supported to carry out video and audio number by same differential link
According to transmission and full duplex control, the integration of video data and control is realized by two differential pairs.The device serializability
The video resolution (24 color depths) for being up to 1080p60 is supported in OpenLDI input.DS90UB947 support is connect by exterior I 2S
Mouth receives multi-channel audio, and the received audio data of the device can be encrypted and be sent by FPD-Link III interface,
It is regenerated again by deserializer later.
It should be noted that middle control Video Output Modules 110 include but is not limited to the first video interface chip LT9211 and
The combination of video interface conversion chip DS90UB947 is also possible to realize that MIPI DSI signal is converted to FPD-Link signal
Other chips or other chip portfolios.
Further, FPD-Link signal is converted into the receivable signal of instrument CPU to realize, the instrument video is defeated
Entering module 120 includes video interface conversion chip DS90UB948 and the second video interface chip LT9211；The video interface turns
Change the chip DS90UB948 and video interface conversion chip DS90UB947 and the second video interface chip LT9211 points
It does not connect, the second video interface chip LT9211 is connect with the instrument video superposition module.
The video interface conversion chip DS90UB948 is used to the FPD-Link signal being converted to LVDS signal, institute
It states the second video interface chip LT9211 and is conveyed to instrument for the LVDS signal to be converted to BT656 or BT1120 signal
The camera interface of CPU I.MX6 by the vehicle situation of remote from serial ports and comes from camera interface eventually by instrument CPU
Middle control information carry out superposition, the effect after specific superposition is as shown in Figure 4.
It should be noted that 120 video interface conversion chip of instrument video input module includes but is not limited to video interface
Conversion chip DS90UB948 and the second video interface chip LT9211 is also possible to realize that FPD-Link signal is converted to BT656
Or other chips or other chip portfolios of BT1120 signal.
The present embodiment passes through middle the first video interface chip LT9211 controlled in Video Output Modules and video interface conversion
The MIPI DSI signal of middle control output is converted to FPD-Link signal by chip DS90UB947, then by instrument video input module
In video interface conversion chip DS90UB948 and the second video interface chip LT9211 FPD-Link signal is converted into instrument
The receivable BT656 or BT1120 signal of CPU realizes the high quality that the video information of instrument CPU is arrived in therefrom control by chip
Conversion, makes middle control video information can be carried out high definition in instrument and shows that the user experience is improved, increase the competitiveness of product.
It is the structural schematic diagram of the second embodiment of video conversion module in Fig. 1 referring to Fig. 3, Fig. 3.In the present embodiment, institute
State middle control Video Output Modules 110 include video interface conversion chip DS90UR927, video interface conversion chip DS90UR925,
One of video interface conversion chip DS90UR905, video interface conversion chip DS90UR907.
It is understood that the information for sharing to instrument that middle control will be drawn synthesizes vision signal, pass through middle control CPU
Full will T7 exports RGB888 signal, through video interface conversion chip DS90UR927/DS90UR925/DS90UR905/
The chips such as DS90UR907 are converted to the output of FPD-Link signal.
Video interface conversion chip DS90UR927/DS90UR925/DS90UR905/DS90UR907 serializer with
DS90UB910 deserializer matches, it is possible to provide complete digital interface is to realize in automobile display screen and image sensing application
Video, audio and the high-speed parallel transmission for controlling data.The chipset is very suitable to the Vehicular video display system of high-definition format
And the vehicle-mounted vision system with million pixel class resolution ratios.DS90UR927/DS90UR925/DS90UR905/
DS90UR907 incorporates built-in bidirectional control channel and low latency GPIO control.The device turns FPD-Link video interface
It is changed to the High Speed Serialized interface of single pair.FPD-Link III universal serial bus scheme is supported realizing high speed just by single differential link
It is controlled to the full duplex of tunnel data transport and low-speed reverse tunneling traffic.By single differential pair integrate audio, video and and
Control data can reduce interconnection line size and weight, while also eliminating offset issue and simplifying system design.
It should be noted that the video interface conversion chip in middle control Video Output Modules 110 includes but is not limited to
DS90UR927/DS90UR925/DS90UR905/DS90UR907 is also possible to realize that RGB888 signal is converted to FPD-Link
Other chips of signal.
Further, the instrument video input module 120 includes video interface conversion chip DS90UR910.
It is understood that PDF-Link signal is converted by instrument by video interface conversion chip DS90UR910
The signal of MIPI-CSI2V1.0 format, then instrument CPU is given to by the camera interface of instrument CPU I.MX6, eventually by instrument
Vehicle situation of remote from serial ports is carried out superposition with the middle control information from camera interface by table CPU.
It should be noted that 120 video interface conversion chip of instrument video input module includes but is not limited to
DS90UR910 is also possible to other chips for realizing that FPD-Link signal is converted to MIPI-CSI2 signal.
The present embodiment is by controlling video output in being used as DS90UR927/DS90UR925/DS90UR905/DS90UR907
The RGB888 signal of middle control output is converted to FPD-Link signal, then is connect by the video in instrument video input module by module
FPD-Link signal is converted into the receivable MIPI-CSI2 signal of instrument CPU by mouth conversion chip DS90UR910, passes through chip
It realizes and therefrom controls the Video Quality Metric to instrument CPU and simplify circuit design, achieved the purpose that middle control transmission of video, promoted
User experience, increases the competitiveness of product.
The utility model also proposes a kind of device based on control information iteration in video realization, described based in video realization
The device of control information iteration includes as described above based on the circuit for controlling information iteration in video realization, it is to be understood that institute
Stating at least has beneficial effect brought by above-described embodiment based on the device for controlling information iteration in video realization.
The above is only the preferred embodiments of the utility model, and therefore it does not limit the scope of the patent of the utility model, all
Equivalent structure or equivalent flow shift made based on the specification and figures of the utility model, is applied directly or indirectly in
Other related technical areas are also included in the patent protection scope of the utility model.
Claims (9)
1. a kind of based on the circuit for controlling information iteration in video realization, which is characterized in that the circuit includes micro-control unit, view
Frequency conversion module and instrument video superposition module；Wherein,
The micro-control unit is sent to the instrument video for obtaining the situation of remote of vehicle, and by the situation of remote
Superposition module；
The video conversion module, for obtain in control vision signal, the middle control vision signal is converted into the first signal, and
First signal is sent to the instrument video superposition module；
The instrument video superposition module, for drawing the situation of remote, and the vehicle condition by first signal and after drawing
Information carries out superposition.
2. as described in claim 1 based on the circuit for controlling information iteration in video realization, which is characterized in that the Video Quality Metric
Module includes middle control Video Output Modules and instrument video input module, the middle control Video Output Modules and middle control and the instrument
Table video input module is separately connected, and the instrument video input module is connect with the instrument video superposition module, it is described in
Control Video Output Modules are used to the middle control vision signal of the middle control output being converted to FPD-Link signal；The instrument video
Input module is used to the FPD-Link signal being converted to first signal.
3. as claimed in claim 2 based on the circuit for controlling information iteration in video realization, which is characterized in that the middle control video
Output module includes the first video interface chip LT9211 and video interface conversion chip DS90UB947；First video connects
The mouth chip LT9211 and video interface conversion chip DS90UB947 and the middle control are separately connected, and the video interface turns
Chip DS90UB947 is changed to connect with the instrument video input module.
4. as claimed in claim 2 based on the circuit for controlling information iteration in video realization, which is characterized in that the middle control video
Output module includes video interface conversion chip DS90UR927, video interface conversion chip DS90UR925, video interface conversion
One of chip DS90UR905, video interface conversion chip DS90UR907.
5. as claimed in claim 3 based on the circuit for controlling information iteration in video realization, which is characterized in that the instrument video
Input module includes video interface conversion chip DS90UB948 and the second video interface chip LT9211；The video interface turns
Change the chip DS90UB948 and video interface conversion chip DS90UB947 and the second video interface chip LT9211 points
It does not connect, the second video interface chip LT9211 is connect with the instrument video superposition module.
6. as claimed in claim 4 based on the circuit for controlling information iteration in video realization, which is characterized in that the instrument video
Input module includes video interface conversion chip DS90UR910.
7. as described in any one of claims 1 to 6 based on the circuit for controlling information iteration in video realization, which is characterized in that
The circuit further includes instrument display screen, and the instrument display screen is for showing the image after superposition.
8. as described in any one of claims 1 to 6 based on the circuit for controlling information iteration in video realization, which is characterized in that
The instrument video superposition module includes instrument central processing unit, and the instrument central processing unit and the video conversion module are logical
Cross utilizing camera interface connection.
9. it is a kind of based on video realize in control information iteration device, which is characterized in that described device include as claim 1 to
Based on the circuit for controlling information iteration in video realization described in any one of 8.
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| CN201821926471.5U CN209305502U (en) | 2018-11-21 | 2018-11-21 | Based on the circuit and device for controlling information iteration in video realization |
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| CN201821926471.5U CN209305502U (en) | 2018-11-21 | 2018-11-21 | Based on the circuit and device for controlling information iteration in video realization |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112693396A (en) * | 2019-10-23 | 2021-04-23 | 比亚迪股份有限公司 | Vehicle and control system thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112693396A (en) * | 2019-10-23 | 2021-04-23 | 比亚迪股份有限公司 | Vehicle and control system thereof |
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