CN207388874U - A kind of digitlization display instrument - Google Patents
A kind of digitlization display instrument Download PDFInfo
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- CN207388874U CN207388874U CN201721261500.6U CN201721261500U CN207388874U CN 207388874 U CN207388874 U CN 207388874U CN 201721261500 U CN201721261500 U CN 201721261500U CN 207388874 U CN207388874 U CN 207388874U
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Abstract
The utility model is related to a kind of digitlization display instrument, including：Housing, liquid crystal display, video processor, microcontroller, video decoding chip and CAN transceiver；Liquid crystal display is embedded in the upper surface of housing；Video processor, microcontroller, video decoding chip and CAN transceiver are located at the inside of housing；Video processor is connected respectively with video decoding chip and liquid crystal display；Microcontroller is connected with video processor, also passes through CAN transceiver external automobile parameter acquisition equipment；Video decoding chip also external camera and automobile data recorder.Wherein, the model of video processor is based on ARM Cortex A9 dual core processors, and core is the Tigera2 cores of Nvidia.The utility model transmits number by CAN bus, due to being digitizer, without error, high sensitivity；Video processor operating frequency is up to 1GHz, rich interface；Liquid crystal display resolution ratio is higher, and digital lcd is shown, display color is beautiful, and display content is enriched, can the perfect state and information that vehicle is presented.
Description
Technical field
The utility model is related to field of instrumentation technology, more particularly to a kind of digitlization display instrument.
Background technology
With the development of economy and society, automobile is increasingly popularized, the display instrument in automobile can show for driver or passenger
Show the present situation parameter of automobile (including automobile driving speed).Therefore, the display instrument in automobile is in running automobile
Passenger and the life security of driver play a crucial role, tradition passes through the analogue instrument of stepper motor drive finger
(pointer-type) there are it is certain the defects of, for example, grade of errors is larger, can generally accomplish 0.5 grade it is good at last；Mechanical structure is determined
Error can become larger therewith after determining component wear；Have magnet steel element, be affected by temperature compared with；Dial plate limited size system, it is impossible to which display is more
More information (such as the information such as multimedia messages, vehicle backing backsight).
Utility model content
The utility model provides a kind of digitlization display instrument, to solve or partly solve above-mentioned technical problem.
The technical solution that the utility model solves above-mentioned technical problem is as follows：A kind of digitlization display instrument, including：Shell
Body, liquid crystal display, video processor, microcontroller, video decoding chip and CAN transceiver；
The liquid crystal display is embedded in the upper surface of the housing；
The video processor, the microcontroller, the video decoding chip and the CAN transceiver are located at the housing
Inside；
The video processor is connected respectively with the video decoding chip and the liquid crystal display；
The microcontroller is connected with the video processor, is also set by the CAN transceiver external automobile parameter acquisition
It is standby；
The video decoding chip also external camera and automobile data recorder；
Wherein, the model of the video processor is based on ARM Cortex-A9 dual core processors, core Nvidia
Tigera2 cores.
The beneficial effects of the utility model are：The utility model transmits number by CAN bus, due to being digitlization electricity
Road, without error, high sensitivity.In addition, video processor uses the Tigera2 cores of Nvidia, and based on ARM Cortex-
The video processor of A9 double-cores, operating frequency are up to 1GHz, rich interface.In addition, liquid crystal display resolution ratio is higher, digital liquid
Crystalline substance display, display color is beautiful, display content enrich (can it is diversified display multimedia system information, as media information,
Phone information can even realize that the perfection to navigation information is presented), can the perfect state and information that vehicle is presented, can be arbitrary
Customize the pattern of instrument.
Further, the model TW8836 of the video decoding chip, the model MB91F520 of the microcontroller, it is described
The model TJA1043 of CAN transceiver.
Further, the video processor is connected by BT656 interfaces with the video decoding chip, also passes through RGB888
Interface is connected with the liquid crystal display；
The video decoding chip is communicated to connect respectively with the camera and the automobile data recorder by CVBS.
The further advantageous effect of the utility model is：Video processor receives the reversing letter of video decoding chip TW8836
Number and automobile data recorder vision signal, enter by the BT656 interfaces of Video processor module, inside Video processor module
After processing, video image is exported by the video interface of RGB888 to display screen.
Further, the microcontroller is also connected by I2C buses with the video decoding chip.
The further advantageous effect of the utility model is：I2C videos are sent by microcontroller to video decoding chip to control
Instruction, video decoding chip send the corresponding vision signal of the instruction to video processor, realize according to the video control instruction
Multitasking when needed, can switch between multiple display content interfaces.I2C is used for video decoding chip
Initialization, be vision signal switching, vision signal is divided into back-up video signal and automobile data recorder vision signal two, this
Two can only independently show, it is impossible to meanwhile, therefore, microcontroller sends video control by I2C bus marcos to video decoding chip
System instruction, video decoding chip send the corresponding vision signal of the instruction according to the video control instruction to video processor.
Further, the instrument further includes light sensor；
In the light sensor setting and the liquid crystal display, and it is connected with the microcontroller.
The further advantageous effect of the utility model is：Light sensor is equipped with above display screen, microcontroller can be by this
Light sensor gathers the intensity of ambient light in real time, and the bright of display screen is adjusted by video processor according to different luminous intensities dynamic
Signal is spent, brightness can be heightened daytime, night can turn down brightness.
Further, the instrument further includes memory；
The memory is connected by I2C buses with the microcontroller.
The further advantageous effect of the utility model is：Memory is mainly hung on microcontroller, is stored for microcontroller
Some important information, such as mileage information, sequence number information etc..
Further, the size of the liquid crystal display is 10.1 inches, resolution ratio 1280*422.
Description of the drawings
Fig. 1 is a kind of structure diagram for digitlization display instrument that the utility model one embodiment provides；
Fig. 2 is a kind of structure diagram for digitlization display instrument that the utility model another embodiment provides；
Fig. 3 is a kind of structure diagram for digitlization display instrument that the utility model another embodiment provides；
Fig. 4 is a kind of structure diagram for digitlization display instrument that the utility model another embodiment provides.
Specific embodiment
The principle and feature of the utility model are described below in conjunction with attached drawing, example is served only for explaining this practicality
It is new, it is not intended to limit the scope of the utility model.
Embodiment one
A kind of digitlization display instrument 100, as shown in Figure 1, including：Housing, liquid crystal display, video processor, monolithic
Machine, video decoding chip and CAN transceiver.Wherein,
Liquid crystal display is embedded in the upper surface of housing；Video processor, microcontroller, video decoding chip and CAN transmitting-receivings
Device is located at the inside of housing；Video processor is connected respectively with video decoding chip and liquid crystal display；At microcontroller and video
Device connection is managed, also passes through CAN transceiver external automobile parameter acquisition equipment；Video decoding chip also external camera and driving are remembered
Record instrument；Wherein, the model of video processor is based on ARM Cortex-A9 dual core processors, and core is Nvidia's
Tigera2 cores.
It should be noted that microcontroller is connected by its serial ports with video processor, also pass through CAN transceiver external automobile
Parameter acquisition equipment.Wherein, CAN is the abbreviation of controller local area network (ControllerArea Network, CAN).Instrument
It can also include translucent cover, which is located on housing and on the top of liquid crystal display.
The analogue instrument (pointer-type) that tradition passes through stepper motor drive finger：Grade of errors is larger, can generally accomplish
0.5 grade good at last；Error can become larger therewith after mechanical structures shape component wear；There is magnet steel element, be affected by temperature
It is larger；Dial plate limited size system, it is impossible to show more information, such as the information such as multimedia messages, vehicle backing backsight.
Number is transmitted by CAN bus, due to being digitizer, without error, high sensitivity.In addition, video is handled
Device uses the Tigera2 cores of Nvidia, and based on the video processor of ARM Cortex-A9 double-cores, operating frequency is up to
1GHz, rich interface.In addition, liquid crystal display resolution ratio is higher, digital lcd is shown, display color is beautiful, and display content is rich
It is rich (can diversified display multimedia system information, such as media information, phone information, can even realize to navigation information
Perfect presentation), can the perfect state and information that vehicle is presented, can arbitrarily customize the pattern of instrument.
Embodiment two
On the basis of embodiment one, the model TW8836 of video decoding chip, the model MB91F520 of microcontroller,
The model TJA1043 of CAN transceiver.
Video processor is connected by BT656 interfaces with video decoding chip, also passes through RGB888 interfaces and liquid crystal display
Screen connection；Video decoding chip is communicated to connect respectively with camera and automobile data recorder by CVBS.
Video processor receives the astern signal of video decoding chip TW8836 and the vision signal of automobile data recorder, passes through
The BT656 interfaces of Video processor module enter, and after Video processor module inter-process, video image is passed through RGB888's
Video interface is exported to display screen.
The English full name of CVBS is Composite Video Broadcast Signal, and Chinese is known as Composite Video Baseband
Signal.
Embodiment three
On the basis of embodiment one or embodiment two, as shown in Fig. 2, microcontroller is also decoded by I2C buses and video
Chip connects.
I2C video control instructions are sent to video decoding chip by microcontroller, video decoding chip is according to the video control
System instruction sends the corresponding vision signal of the instruction to video processor, realizes multitasking, when needed, can be more
It is switched between a display content interface.I2C is used for the initialization to video decoding chip, is the switching of vision signal, depending on
Frequency signal is divided into back-up video signal and automobile data recorder vision signal two, the two can only independently show, it is impossible to meanwhile, because
This, microcontroller sends video control instruction by I2C bus marcos to video decoding chip, and video decoding chip is according to the video
Control instruction sends the corresponding vision signal of the instruction to video processor.
I2C English full name is Inter-Integrated Circuit, and Chinese is known as twin wire universal serial bus.
Example IV
On the basis of any embodiment in embodiment one to embodiment three, as shown in figure 3, instrument further includes light biography
Sensor.In light sensor setting and liquid crystal display, and it is connected with microcontroller.
Light sensor is equipped with above display screen, microcontroller can gather the strong of ambient light in real time by the light sensor
Degree is adjusted the luminance signal of display screen by video processor according to different luminous intensities dynamic, can heighten brightness, night meeting daytime
Turn down brightness.
Embodiment five
On the basis of any embodiment in embodiment one to example IV, as shown in figure 4, instrument further includes storage
Device, memory are connected by I2C buses with microcontroller.
Memory is mainly hung on microcontroller, some important information, such as mileage information, sequence are stored for microcontroller
Row information etc..
Embodiment six
On the basis of any embodiment in embodiment one to embodiment five, the size of liquid crystal display is 10.1 English
It is very little, resolution ratio 1280*422.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all in this practicality
Within new spirit and principle, any modifications, equivalent replacements and improvements are made should be included in the guarantor of the utility model
Within the scope of shield.
Claims (7)
1. a kind of digitlization display instrument, which is characterized in that including：Housing, liquid crystal display, microcontroller, regard video processor
Frequency decoding chip and CAN transceiver；
The liquid crystal display is embedded in the upper surface of the housing；
The video processor, the microcontroller, the video decoding chip and the CAN transceiver are located at the interior of the housing
Portion；
The video processor is connected respectively with the video decoding chip and the liquid crystal display；
The microcontroller is connected with the video processor, also passes through the CAN transceiver external automobile parameter acquisition equipment；
The video decoding chip also external camera and automobile data recorder；
Wherein, the model of the video processor is based on ARM Cortex-A9 dual core processors, and core is Nvidia's
Tigera2 cores.
A kind of 2. digitlization display instrument according to claim 1, which is characterized in that the model of the video decoding chip
For TW8836, the model MB91F520 of the microcontroller, the model TJA1043 of the CAN transceiver.
3. a kind of digitlization display instrument according to claim 2, which is characterized in that the video processor passes through
BT656 interfaces are connected with the video decoding chip, are also connected by RGB888 interfaces with the liquid crystal display；
The video decoding chip is communicated to connect respectively with the camera and the automobile data recorder by CVBS.
4. a kind of digitlization display instrument according to claim 3, which is characterized in that the microcontroller is also total by I2C
Line is connected with the video decoding chip.
5. a kind of digitlization display instrument according to any one of claims 1 to 4, which is characterized in that the instrument is also wrapped
Include light sensor；
In the light sensor setting and the liquid crystal display, and it is connected with the microcontroller.
6. a kind of digitlization display instrument according to any one of claims 1 to 4, which is characterized in that the instrument is also wrapped
Include memory；
The memory is connected by I2C buses with the microcontroller.
A kind of 7. digitlization display instrument according to any one of claims 1 to 4, which is characterized in that the liquid crystal display
The size of screen is 10.1 inches, resolution ratio 1280*422.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721261500.6U CN207388874U (en) | 2017-09-28 | 2017-09-28 | A kind of digitlization display instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721261500.6U CN207388874U (en) | 2017-09-28 | 2017-09-28 | A kind of digitlization display instrument |
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| CN207388874U true CN207388874U (en) | 2018-05-22 |
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| CN201721261500.6U Active CN207388874U (en) | 2017-09-28 | 2017-09-28 | A kind of digitlization display instrument |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109348157A (en) * | 2018-11-21 | 2019-02-15 | 深圳创维数字技术有限公司 | Based on circuit, the method and device for controlling information iteration in video realization |
| CN114194028A (en) * | 2021-12-21 | 2022-03-18 | 航天科技控股集团股份有限公司 | Realization system of video image of backing car of truck instrument |
-
2017
- 2017-09-28 CN CN201721261500.6U patent/CN207388874U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109348157A (en) * | 2018-11-21 | 2019-02-15 | 深圳创维数字技术有限公司 | Based on circuit, the method and device for controlling information iteration in video realization |
| CN114194028A (en) * | 2021-12-21 | 2022-03-18 | 航天科技控股集团股份有限公司 | Realization system of video image of backing car of truck instrument |
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Address after: Room 572, 18th Floor, Building B4, Phase I, Longshan Innovation Park, Wuhan Future Science and Technology City, No. 999 Gaoxin Avenue, Donghu New Technology Development Zone, Wuhan City, Hubei Province, 430000 Patentee after: Wuhan Haiwei Technology Co.,Ltd. Country or region after: China Address before: Room 1588-2, 15th floor, building B3, zone 2, National Geospatial Information Industry base, No.3, wudayuan 4th Road, Donghu New Technology Development Zone, Wuhan City, Hubei Province, 430040 Patentee before: WUHAN HAIWEI TECHNOLOGY Co.,Ltd. Country or region before: China |