CN108962161A - A kind of liquid crystal instrument for automobile graphics controller - Google Patents
A kind of liquid crystal instrument for automobile graphics controller Download PDFInfo
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- CN108962161A CN108962161A CN201810736066.5A CN201810736066A CN108962161A CN 108962161 A CN108962161 A CN 108962161A CN 201810736066 A CN201810736066 A CN 201810736066A CN 108962161 A CN108962161 A CN 108962161A
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- interface
- reservoir
- liquid crystal
- module
- automobile
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
Abstract
The invention discloses a kind of liquid crystal instrument for automobile graphics controller, the liquid crystal instrument for automobile graphics controller constitutes as follows: MAINCON main interface, MPU main controller, PMU power module, DDR reservoir, EMMC reservoir, DEBUG test module, NOR FLASH memory and BOOT MODE module.The beneficial effects of the invention are as follows a variety of algorithms of preemption scheduling priority-based of the liquid crystal instrument for automobile graphics controller can be realized real-time task scheduling and prediction task response-time by QNX operating system, no matter ensuring system load, always high-priority task can be timely completed.Context switching and interruption reaction between task are the aspects that the strongest operating system of current real-time has more huge economic value and social value all in microsecond level-one.
Description
Technical field
The present invention relates to the design of the structure of automobile controller and applied technical fields, specifically provide a kind of liquid crystal automobile instrument
Table graphics controller.
Background technique
From ancient times to the present, automobile is always as the general presence of the industrial art work, along with different epoch rhythm, automobile
Also what can be grown with each passing hour develops out the technology of various novelties, and full liquid crystal instrument disk is the product under modern science and technology, with consumption
Pursuit of the person to vehicle personalization and technology sense, the demand at image conversion interface are more and more stronger.Conventional instrument because function it is simple,
Information content is insufficient, and white and black displays are single, can no longer meet display demand.Full liquid crystal instrument disk is by a monolith liquid crystal display
The equipment that curtain shows vehicle traveling information to driver.Different from conventional instrument disk, full liquid crystal instrument disk can to driver with
Carry out better interactive experience.It is not only only capable of being communicated to Vehicle Speed, the engine of the displaying of driver's tradition machinery instrument board
The essential informations such as revolving speed, Fuel Oil Remaining, additionally it is possible to show more more detailed running informations, tire pressure monitoring, digital map navigation, with
And reversing radar etc., driving active safety is improved to a certain extent；And driver can select according to the hobby of oneself
Select different display styles, realize personal settings to produce more gorgeous effect, improve vehicle technology sense and
Class sense.Therefore function is more complete, and the higher full liquid crystal automobile instrument panel of precision is the following inevitable trend.
Summary of the invention
The object of the present invention is to provide a kind of liquid crystal instrument for automobile graphics controllers.
Liquid crystal instrument for automobile graphics controller of the present invention constitutes as follows: MAINCON main interface, MPU main controller, PMU
Power module, DDR reservoir, EMMC reservoir, DEBUG test module, NOR FLASH memory and BOOT MODE module,
Wherein, the MAINCON main interface, PMU power module, DDR reservoir, EMMC reservoir, DEBUG test module, NOR
FLASH memory and BOOT MODE module are electrically connected with MPU main controller composition respectively；DDR reservoir, EMMC reservoir,
DEBUG test module, NOR FLASH memory and BOOT MODE module are electrically connected with PMU power module composition respectively,
In, the MAINCON main interface includes system reset input interface, LVDS video signal interface, USB HOST interface, USB
OTG interface, PWR power supply signal interface, rgb video transmission signaling interface, CSI camera input signal interface, CVBS video letter
Number interface, UART communication interface, CAN communication interface and I/O communication interface, the PWR power supply signal interface and PMU power module
Constitute electrical connection；MPU main controller transmits signaling interface by rgb video and is connected with external liquid crystal display；MPU main controller passes through
CSI camera input signal interface is connected with external camera；MPU main controller passes through CVBS video signal interface and external video
Conversion module is connected；MPU main controller pass through respectively LVDS video signal interface, USB HOST interface (9), USB OTG interface,
UART communication interface, CAN communication interface and I/O communication interface and outer floor are bi-directionally connected, and external reset device, which passes through, is
System resets input interface and is connected with MPU main controller.
Graphical interfaces is designed by QNX embedded OS, and using UI, to realize human-computer interaction.
MAINCON main interface obtains power supply, and after powering on, main power source starts to power, and PMU power module is powered, and generates very
Plurality of voltages, MPU main controller bring into operation.Start-up mode is selected by adjusting BOOT MODE, when utilization EMMC Starting mode
When, it is run being copied in DDR reservoir from reading code data in EMMC reservoir, executes order；It is opened when using SPI
When flowing mode, copies in DDR reservoir and run code data is read in NOR FLASH reservoir, execute order.
After program starting, MPU main controller is handled, and is transmitted signaling interface by rgb video and is passed on exterior display screen, we are just
It can see display effect.MPU main controller is used to handle all display data and externally interactive function, PMU power supply mould
Block is for real time monitoring and adjustment module operating voltage and module working condition, DDR reservoir, EMMC reservoir, NOR FLASH
Reservoir is used to store preset graphical display application software and corresponding operation code, and DEBUG test module is used to prison in real time
The working condition of control and debugging module.
After hardware module power supply, the work of MPU main controller, DDR reservoir, EMMC reservoir, in NOR FLASH memory
Operation code and interface applications software start to execute, and after the processing of MPU main controller, display data pass through interface unit externally not
It sends disconnectedly, while external control panel is by the communication interface in hardware interface unit, it is soft via MPU main controller and display application
Part real-time, interactive, MPU main controller will specifically show that data-pushing is externally exported to interface unit after interaction.MPU main controller is also
PMU power module can be adjusted according to different interface states to reach ideal working condition.In addition in liquid crystal instrument for automobile figure
During the modules of shape controller work normally, entire hardware module can be monitored and debug in real time by test cell
Working condition.
The MPU main controller uses automotive grade main control chip IMAX6.
The PMU power module uses automotive grade power supply chip MMPF0100.
The DDR reservoir uses automotive grade DDR storage chip EM6GD16.
The EMMC reservoir uses automotive grade storage chip THGBMHG6C.
The NOR FLASH memory uses automotive grade storage chip IS25LP064A.
The liquid crystal instrument for automobile graphics controller reduces heat, passes through optimization according to CPU usage dynamic adjustment frequency
GPU algorithm, directly renders buffer area, to reduce delay, realizes system upgrade in life cycle by USB, quickly
Start the time less than 1.5 seconds, application program is restored within 2 seconds after exiting extremely, when CPU usage is high, is guaranteed crucial
The expection resource of task, real-time message communicating≤5ms support OpenGL ES figure to accelerate the Ke Yifang in the interface 2D comprehensively
Just it is embedded in 3D model, the 3D effect of built-in several scenes conversion supports customized shaders.
The a variety of algorithms of preemption scheduling priority-based of liquid crystal instrument for automobile graphics controller are operated by QNX
System can be realized real-time task scheduling and prediction task response-time, it is ensured that no matter system load, high-priority task is total
It is that can be timely completed.Context switching and interruption reaction between task is the strongest operation of current real-time all in microsecond level-one
System has the aspect of more huge economic value and social value.
Detailed description of the invention
Fig. 1 is liquid crystal instrument for automobile graphics controller structure principle chart.
In figure: 1, MAINCON main interface；2, MPU main controller；3, PMU power module；4, DDR reservoir；5, EMMC is stored up
Storage；6, DEBUG test module；7, system reset input interface；8, LVDS video signal interface；9, USB HOST interface；
10, USB OTG interface；11, PWR power supply signal interface；12, rgb video transmits signaling interface；13, CSI camera input signal
Interface；14, CVBS video signal interface；15, UART communication interface；16, CAN communication interface；17, I/O communication interface；18,NOR
FLASH memory；19, BOOT MODE module.
Specific embodiment
As shown in Figure 1, the liquid crystal instrument for automobile graphics controller composition is as follows: MAINCON main interface 1, MPU main controller
2, PMU power module 3, DDR reservoir 4, EMMC reservoir 5, DEBUG test module 6, NOR FLASH memory 18 and BOOT
MODE module 19, wherein the MAINCON main interface 1, PMU power module 3, DDR reservoir 4, EMMC reservoir 5, DEBUG
Test module 6, NOR FLASH memory 18 and BOOT MODE module 19 are electrically connected with the composition of MPU main controller 2 respectively； DDR
Reservoir 4, EMMC reservoir 5, DEBUG test module 6, NOR FLASH memory 18 and BOOT MODE module 19 respectively with
PMU power module 3 constitutes electrical connection, wherein the MAINCON main interface 1 includes system reset input interface 7, LVDS video
Signaling interface 8, USB HOST interface 9, USB OTG interface 10, PWR power supply signal interface 11, rgb video transmit signaling interface
12, CSI camera input signal interface 13, CVBS video signal interface 14, UART communication interface 15,16 and of CAN communication interface
I/O communication interface 17, the PWR power supply signal interface 11 are electrically connected with the composition of PMU power module 3；MPU main controller 2 passes through RGB
Video transfer signal interface 12 is connected with external liquid crystal display；MPU main controller 2 passes through CSI camera input signal interface 13
It is connected with external camera；MPU main controller 2 is connected by CVBS video signal interface 14 with external video conversion module；MPU master
Control device 2 respectively by LVDS video signal interface 8, USB HOST interface 9, USB OTG interface 10, UART communication interface 15,
CAN communication interface 16 and I/O communication interface 17 are bi-directionally connected with outer floor, and external reset device is inputted by system reset
Interface 7 is connected with MPU main controller 2.
Graphical interfaces is designed by QNX embedded OS, and using UI, to realize human-computer interaction.
MAINCON main interface 1 obtains power supply, and after powering on, main power source starts to power, and PMU power module 3 is powered, and generates
Very plurality of voltages, MPU main controller 2 bring into operation, and select start-up mode by adjusting BOOT MODE19, open when using EMMC
When flowing mode, is run being copied in DDR reservoir 4 from the inner reading code data of EMMC reservoir 5, execute order.When
When using SPI Starting mode, transported being copied in DDR reservoir 4 from the inner reading code data of NOR FLASH reservoir 18
Row, executes order.After program starting, MPU main controller 2 is handled, and is passed to by rgb video transmission signaling interface 12 outer
On portion's display screen, we are it is seen that display effect.MPU main controller 2 is for handling all display data and to diplomacy
Mutual function, PMU power module 3 for monitoring in real time and adjustment module operating voltage and module working condition, DDR reservoir 4,
EMMC reservoir 5, NOR FLASH reservoir 18 are used to store preset graphical display application software and corresponding operation code,
DEBUG test module 6 is used to monitor in real time and the working condition of debugging module.
After hardware module power supply, MPU main controller 2 works, DDR reservoir 4, EMMC reservoir 5, NOR FLASH memory
Operation code and interface applications software in 18 start to execute, and after the processing of MPU main controller 2, display data pass through interface list
Member is externally constantly sent, while external control panel is by the communication interface in hardware interface unit, via MPU main controller 2 and
Show application software real-time, interactive, MPU main controller 2 will specifically show that data-pushing is externally exported to interface unit after interaction.
MPU main controller 2 can adjust PMU power module 3 according to different interface states also to reach ideal working condition.In addition in vapour
During the modules of vehicle liquid crystal instrument graphics controller work normally, it can monitor and debug in real time by test cell and is whole
The working condition of a hardware module.
The MPU main controller 2 uses automotive grade main control chip IMAX6.
The PMU power module 3 uses automotive grade power supply chip MMPF0100.
The DDR reservoir 4 uses automotive grade DDR storage chip EM6GD16.
The EMMC reservoir 5 uses automotive grade storage chip THGBMHG6C.
The NOR FLASH memory 18 uses automotive grade storage chip IS25LP064A.
The liquid crystal instrument for automobile graphics controller reduces heat, passes through optimization according to CPU usage dynamic adjustment frequency
GPU algorithm, directly renders buffer area, to reduce delay, realizes system upgrade in life cycle by USB, quickly
Start the time less than 1.5 seconds, application program is restored within 2 seconds after exiting extremely, when CPU usage is high, is guaranteed crucial
The expection resource of task, real-time message communicating≤5ms support OpenGL ES figure to accelerate the Ke Yifang in the interface 2D comprehensively
Just it is embedded in 3D model, the 3D effect of built-in several scenes conversion supports customized shaders.
The a variety of algorithms of preemption scheduling priority-based of liquid crystal instrument for automobile graphics controller are operated by QNX
System can be realized real-time task scheduling and prediction task response-time, it is ensured that no matter system load, high-priority task is total
It is that can be timely completed.Context switching and interruption reaction between task is the strongest operation of current real-time all in microsecond level-one
System has the aspect of more huge economic value and social value.
Claims (3)
1. a kind of liquid crystal instrument for automobile graphics controller, it is characterised in that: the liquid crystal instrument for automobile graphics controller is constituted such as
Under: MAINCON main interface (1), MPU main controller (2), PMU power module (3), DDR reservoir (4), EMMC reservoir (5),
DEBUG test module (6), NOR FLASH memory (18) and BOOT MODE module (19), wherein the MAINCON master connects
Mouth (1), PMU power module (3), DDR reservoir (4), EMMC reservoir (5), DEBUG test module (6), NOR FLASH are deposited
Reservoir (18) and BOOT MODE module (19) are constituted with MPU main controller (2) respectively to be electrically connected；DDR reservoir (4), EMMC storage
Device (5), DEBUG test module (6), NOR FLASH memory (18) and BOOT MODE module (19) respectively with PMU power supply mould
Block (3) constitutes electrical connection, wherein the MAINCON main interface (1) includes system reset input interface (7), LVDS vision signal
Interface (8), USB HOST interface (9), USB OTG interface (10), PWR power supply signal interface (11), rgb video transmit signal
Interface (12), CSI camera input signal interface (13), CVBS video signal interface (14), UART communication interface (15), CAN
Communication interface (16) and I/O communication interface (17), the PWR power supply signal interface (11) constitute with PMU power module (3) and are electrically connected
It connects；MPU main controller (2) is connected by rgb video transmission signaling interface (12) with external liquid crystal display；MPU main controller (2) is logical
CSI camera input signal interface (13) is crossed to be connected with external camera；MPU main controller (2) passes through CVBS video signal interface
(14) it is connected with external video conversion module；MPU main controller (2) passes through LVDS video signal interface (8), USB HOST respectively
Interface (9), USB OTG interface (10), UART communication interface (15), CAN communication interface (16) and I/O communication interface (17) and outer
Portion's bottom plate is bi-directionally connected, and external reset device is connected by system reset input interface (7) with MPU main controller (2).
2. liquid crystal instrument for automobile graphics controller according to claim 1, it is characterised in that: pass through QNX embedded operation
System, and graphical interfaces is designed using UI, to realize human-computer interaction.
3. liquid crystal instrument for automobile graphics controller according to claim 1, it is characterised in that: MPU main controller (2) fortune
With automotive grade main control chip IMAX6, the PMU power module (3) uses automotive grade power supply chip MMPF0100, the DDR storage
Storage (4) uses automotive grade DDR storage chip EM6GD16, and the EMMC reservoir (5) uses automotive grade storage chip
THGBMHG6C, the NOR FLASH memory (18) use automotive grade storage chip IS25LP064A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810736066.5A CN108962161A (en) | 2018-07-06 | 2018-07-06 | A kind of liquid crystal instrument for automobile graphics controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810736066.5A CN108962161A (en) | 2018-07-06 | 2018-07-06 | A kind of liquid crystal instrument for automobile graphics controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108962161A true CN108962161A (en) | 2018-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810736066.5A Pending CN108962161A (en) | 2018-07-06 | 2018-07-06 | A kind of liquid crystal instrument for automobile graphics controller |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007132724A (en) * | 2005-11-09 | 2007-05-31 | Alpine Electronics Inc | Navigation device and facility search method |
| US20130065678A1 (en) * | 2011-09-09 | 2013-03-14 | Igt | Retrofit devices for providing virtual ticket-in and ticket-out on a gaming machine |
| CN203438864U (en) * | 2013-09-12 | 2014-02-19 | 河北博联通讯科技有限责任公司 | Vehicle-mounted intelligent digital full-liquid-crystal combination meter |
| CN104527429A (en) * | 2014-11-19 | 2015-04-22 | 上海德科电子仪表有限公司 | Full-liquid crystal virtual instrument of car |
| CN105196870A (en) * | 2015-10-10 | 2015-12-30 | 重庆大成优美数控科技有限公司 | Automobile liquid crystal instrument |
| CN206254802U (en) * | 2016-11-18 | 2017-06-16 | 上海仪电汽车电子系统有限公司 | Full liquid crystal virtual instrument based on double MCU hardware architectures |
| CN107415691A (en) * | 2017-07-28 | 2017-12-01 | 上海仪电汽车电子系统有限公司 | Centralized car-mounted display control system |
| CN207267456U (en) * | 2017-07-04 | 2018-04-24 | 郑州精益达汽车零部件有限公司 | A kind of full liquid crystal instrument core control panel |
-
2018
- 2018-07-06 CN CN201810736066.5A patent/CN108962161A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007132724A (en) * | 2005-11-09 | 2007-05-31 | Alpine Electronics Inc | Navigation device and facility search method |
| US20130065678A1 (en) * | 2011-09-09 | 2013-03-14 | Igt | Retrofit devices for providing virtual ticket-in and ticket-out on a gaming machine |
| CN203438864U (en) * | 2013-09-12 | 2014-02-19 | 河北博联通讯科技有限责任公司 | Vehicle-mounted intelligent digital full-liquid-crystal combination meter |
| CN104527429A (en) * | 2014-11-19 | 2015-04-22 | 上海德科电子仪表有限公司 | Full-liquid crystal virtual instrument of car |
| CN105196870A (en) * | 2015-10-10 | 2015-12-30 | 重庆大成优美数控科技有限公司 | Automobile liquid crystal instrument |
| CN206254802U (en) * | 2016-11-18 | 2017-06-16 | 上海仪电汽车电子系统有限公司 | Full liquid crystal virtual instrument based on double MCU hardware architectures |
| CN207267456U (en) * | 2017-07-04 | 2018-04-24 | 郑州精益达汽车零部件有限公司 | A kind of full liquid crystal instrument core control panel |
| CN107415691A (en) * | 2017-07-28 | 2017-12-01 | 上海仪电汽车电子系统有限公司 | Centralized car-mounted display control system |
Non-Patent Citations (1)
| Title |
|---|
| 桑楠: "《嵌入式系统原理及应用开发技术(第2版)》", 31 January 2008 * |
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Application publication date: 20181207 |