CN109388432A - A kind of automobile mounted Infotainment general-purpose platform and application method - Google Patents
A kind of automobile mounted Infotainment general-purpose platform and application method Download PDFInfo
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- CN109388432A CN109388432A CN201811116572.0A CN201811116572A CN109388432A CN 109388432 A CN109388432 A CN 109388432A CN 201811116572 A CN201811116572 A CN 201811116572A CN 109388432 A CN109388432 A CN 109388432A
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- bluetooth
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- identifier
- prom
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/4401—Bootstrapping
- G06F9/4411—Configuring for operating with peripheral devices; Loading of device drivers
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F8/00—Arrangements for software engineering
- G06F8/60—Software deployment
- G06F8/65—Updates
- G06F8/654—Updates using techniques specially adapted for alterable solid state memories, e.g. for EEPROM or flash memories
Abstract
The present invention provides a kind of automobile mounted Infotainment general-purpose platform and application methods, and E is written in different hwids2In PROM, program reads E when powering on and bringing into operation2Hwid in PROM according to the hwid dynamically load read, is not loaded with, changes corresponding hardware driver software and be adapted to each product, to ensure that each product can share system provided by the invention.Based on general-purpose platform of the invention, all products share a set of Linux software systems, without establishing a set of Linux software systems for each product, to save the carrying cost of software systems；And only need to arrange personnel and developed based on this set of Linux software systems, reduce the development cost of software systems；Once platform improves to some extent, that is, it may be used in all products, without being updated for each product, to reduce the maintenance cost of software systems.
Description
Technical field
The invention belongs to technical field of automotive electronics, are related to automobile mounted information entertainment, are to relate to more specifically
And a kind of automobile mounted Infotainment general-purpose platform and application method.
Background technique
Automobile mounted information entertainment includes on-vehicle host and the Linux software systems that are mounted in on-vehicle host, vehicle
Carrying host includes CPU main controller, RAM and FlASH memory bank, LCD display, Touch Panel touch screen, Tuner radio
Etc. necessary hardware, further include Camera camera, GPS navigation, Bluetooth bluetooth, etc. optional hardware.It is existing vehicle-mounted
The software design approach of host linux system is that each product (includes the complete production of on-vehicle host and a variety of apolegamy hardware
Product) a set of Linux software systems are established, as shown in Figure 1, then each product arranges personnel according to the tool of each product accordingly
Body hardware state and model increase, delete, change corresponding hardware driving, to guarantee that each product can work normally.
Since each product there are a set of Linux software systems of oneself, the carrying cost of software systems is increased；It is each under normal conditions
Product all arranges personnel to carry out stand-alone development, and which increases the development costs of software systems；And when the software of some product changes
Into be all general to other products when, then need by improved software repeat increase in other products, which increase software systems
The maintenance cost of system.Obviously, this status for each product stand-alone development software systems, causes the increase of cost, waste
A large amount of human and material resources.
Summary of the invention
Through analysis it was found that most hardware are identical, such as CPU in product in vehicle-mounted information and entertainment system
Main controller, RAM and FlASH memory bank, Tuner radio are all etc.；Wherein there is the optional hardware of sub-fraction to be different, such as
Size and resolution ratio difference, Camera camera, GPS navigation, the Bluetooth of LCD display, Touch Panel touch screen
The selection of the hardware such as bluetooth is arranged in pairs or groups.Therefore, the Linux software section overwhelming majority of these products is also identical, and only one is small
The software of part different hardware parameter and optional hardware is different.Based on this, the present invention provides a kind of automobile mounted information
General-purpose platform is entertained, for the different hardware of this sub-fraction, E is written into these different hwids2In PROM, program
E is read when powering on and bringing into operation2Hwid in PROM, according to the hwid dynamically load read, be not loaded with,
Corresponding hardware driver software is changed to be adapted to each product, to ensure that each product can work normally, to enable institute
There is product that can share system provided by the invention.
In order to achieve the above object, the invention provides the following technical scheme:
A kind of automobile mounted Infotainment general-purpose platform, comprising: primary control program module, FLASH drive software, RAM driving
Software, Tuner drive software, LCD drive software, touch screen driver software, Camera webcam driver software, GPS navigation drive
Dynamic software and Bluetooth bluetooth drive software, the primary control program module are used for from E2LCD display mark is read in PROM
Symbol and Touch Panel touchscreen identifier, and parameter is driven according to identifier dynamic change LCD and touch screen, so that driving
Parameter is adapted with the true resolution of LCD and touch screen；Primary control program module is also used to from E2Camera is read in PROM to take the photograph
As head identifier, GPS navigation identifier and Bluetooth bluetooth identifier, and according to identifier dynamically load/be not loaded with
Camera webcam driver software, GPS navigation drive software and Bluetooth bluetooth drive software and/or change Camera take the photograph
As the driving parameter of head, GPS navigation drive parameter and Bluetooth bluetooth to drive parameter；LCD drive software, touch screen driving
Software, Camera webcam driver software, GPS navigation drive software and Bluetooth bluetooth drive software are respectively used to drive
LCD, touch screen, Camera camera, GPS navigation and Bluetooth are provided with hardware driving parameter in each drive software.
Further, E2Each hwid is previously stored in PROM.
The present invention also provides a kind of automobile mounted Infotainment common application methods, include the following steps:
E is written into each hwid2In PROM, each hwid be capable of the unique identification hardware parameter and/or
Installation condition；
From E2Each hwid is read in PROM；
The driving parameter or load/be not loaded with drive software that corresponding hardware is changed according to hwid, after enabling change
Each hardware driver software and driving parameter are adapted with hardware.
Further, implementation method specifically comprises the following steps:
By LCD display identifier, Touch Panel touchscreen identifier, Camera camera identification symbol, GPS navigation
E is written in identifier, Bluetooth bluetooth identifier2In PROM；LCD display identifier is capable of unique identification LCD display
Size or resolution ratio, Touch Panel touchscreen identifier are capable of the size or resolution of unique identification Touch Panel touch screen
Rate, Camera camera identification accord with the installation condition for capableing of unique identification Camera camera, and GPS navigation identifier can be unique
The installation condition of GPS navigation is identified, Bluetooth bluetooth identifier is capable of the installation condition of unique identification Bluetooth bluetooth；
From E2LCD display identifier is read in PROM；The driving of LCD display is changed according to LCD display identifier
Parameter, the resolution ratio in driving parameter after enabling change are adapted with LCD display；
From E2Touch Panel touchscreen identifier is read in PROM；It is changed according to Touch Panel touchscreen identifier
The driving parameter of TouchPanel touch screen, the resolution ratio and Touch Panel touch screen phase in driving parameter after enabling change
Adaptation；
From E2Camera camera identification symbol is read in PROM；It loads/is not loaded with according to Camera camera identification symbol
Camera webcam driver software and/or the driving parameter for changing Camera camera enable the Camera camera after changing
Drive software state and driving parameter are adapted with Camera camera；
From E2GPS navigation identifier is read in PROM；It is soft GPS navigation driving to be loaded/be not loaded with according to GPS navigation identifier
Part and/or the driving parameter for changing GPS navigation, the drive software state and driving parameter and GPS of the GPS navigation after enabling change
Navigation is adapted；
From E2Bluetooth bluetooth identifier is read in PROM；It loads/is not loaded with according to Bluetooth bluetooth identifier
Bluetooth bluetooth drive software and/or the driving parameter for changing Bluetooth bluetooth, the Bluetooth bluetooth after enabling change
Drive software state and driving parameter be adapted with Bluetooth bluetooth.
Compared with prior art, the invention has the advantages that and the utility model has the advantages that
Based on general-purpose platform of the invention, all products share a set of Linux software systems, without building for each product
A set of Linux software systems are found, to save the carrying cost of software systems；And it is a set of based on this only to need to arrange personnel
Linux software systems are developed, and the development cost of software systems is reduced；Once platform improves to some extent, that is, it may be used on institute
Have in product, without being updated for each product, to reduce the maintenance cost of software systems.
Detailed description of the invention
Fig. 1 is different product and existing system corresponding diagram.
Fig. 2 is different product and general-purpose platform corresponding diagram provided by the invention.
Fig. 3 is general-purpose platform frame diagram provided by the invention.
Specific embodiment
Technical solution provided by the invention is described in detail below with reference to specific embodiment, it should be understood that following specific
Embodiment is only illustrative of the invention and is not intended to limit the scope of the invention.In addition, step shown in the flowchart of the accompanying drawings
Suddenly it can execute in a computer system such as a set of computer executable instructions, although also, showing in flow charts
Logical order, but in some cases, it can be with the steps shown or described are performed in an order that is different from the one herein.
Automobile mounted Infotainment general-purpose platform provided by the invention, principle is as shown in Fig. 2, can be with different product pair
It connects, versatility is extremely strong.Its realize hardware structure as shown in figure 3, include common segment: CPU main controller, FLASH, RAM,
Tuner radio；The possible different piece of software parameter: LCD display, Touch Panel touch screen；Match hardware components:
Camara camera, GPS navigation, Bluetooth bluetooth；This general-purpose platform unique portion: for storage hardware identifier
E2PROM.It is matched, platform software frame include primary control program module, FLASH drive software, RAM drive software,
Tuner drive software, these hardware modules be it is indispensable, the drive software of other indispensable hardware is in institute in addition to primary control program module
It is all identical in product, but the application mode of other drivers in addition to indispensable drive software is different from routine techniques,
In routine techniques, the driving parameter in drive software is finished writing can not modify in advance, and can be according to identifier in the present invention
Dynamic is modified.In addition, system must also include LCD drive software, touch screen driver software, for drive LCD display and
Touch Panel touch screen.LCD display, Touch Panel touch screen have different resolution ratio, need drive software
It can adapt to all products, need when being powered according to the resolution ratio of LCD display or touch screen dynamic modification drive software
In driving parameter, so as to cover the resolution ratio of different hardware.The present invention is in E2Storage and hardware resolution phase in PROM
Corresponding identifier, in platform operation, primary control program is from E2It is read in PROM after corresponding identifier according to identifier dynamic
The driving parameter of hardware is changed, so that driving parameter matches with identifier, to enable the practical resolution of driving parameter and hardware
Rate is adapted.Driving parameter is obtained by primary control program and is stored in corresponding drive software after changing.
Specifically, the resolution ratio of the LCD display in each product that general-purpose platform provided by the invention is applicable in is different,
For example, LCD display resolution ratio has 1280x720,960x1280,1920x720 etc., E2The LCD display mark stored in PROM
Knowing symbol is 0 expression 1280x720,1 expression 960x1280,2 expression 1920x720.Program is in upper electricity operation from E2It is read in PROM
LCD display identifier is taken, if it is 0, then dynamic change LCD display driving parameter is 1280x720；If it is 1, then move
It is 960x1280 that state, which changes LCD display driving parameter,；If it is 2, then dynamically change LCD display driving parameter is
1920x720.Identifier and the corresponding relationship of driving parameter are stored in primary control program.This ensure that in each product not
Normally it can show and work with the LCD display of size and resolution ratio.The identifier referred in the present invention is using the numbers such as 0,1,2
Word is merely exemplary, as needed, can also be using other numbers, letter even text as identifier.One hardware
There may be multiple parameters to need to be arranged, therefore there can be multiple identifiers, but should be noted that a certain mark of some hardware
The a certain parameter (such as resolution ratio or other parameters) or installation condition of symbol and the hardware are correspondingly, that is, to pass through certain
A kind of identifier value can uniquely determine the parameter or installation condition of the hardware.For example, display screen is also in addition to resolution ratio
Luminance parameter may be set, this just needs another identifier to be corresponded to.
Likewise, the resolution ratio of Touch Panel touch screen has a variety of similar with LCD display, E2PROM is also stored
There is a Touch Panel touchscreen identifier, program is in upper electricity operation according to from E2The Touch Panel read in PROM is touched
Screen identifier dynamic change Touch Panel touch screen drives parameter to be adapted to different resolution or other parameters, to guarantee
Touch Panel touch screen in each product can normally be touched and be worked.
In addition, also need to have in advance in general-purpose platform Camera webcam driver software, GPS navigation drive software and
Bluetooth bluetooth drive software.Be provided with driving parameter, E in these softwares in advance2It is stored in PROM and type of hardware phase
Corresponding identifier, unlike LCD drive software above-mentioned and touch screen driver software, due to camera, navigation, bluetooth
Equal hardware can be matched, the specific identifier that whether should be installed comprising the expression hardware in identifier corresponding with them, with
Just when identifying this kind of hardware installation, corresponding drive software is loaded in systems, and when hardware is not installed, it is not loaded with corresponding
Drive software.
Specifically, whether the camera in each product is installed, Setup Type be it is optional, than if any product do not have
Camera, only one rearview camera of some products, some products then have 360 to look around four cameras, E2It is stored in PROM
Camera camera identification symbol be the no camera of 0 expression, 1 expression only one rearview camera, 2 indicate 360 to look around four
A camera.Main program is in upper electricity operation from E2Camera camera identification symbol is read in PROM, if it is 0, is then not loaded with
Camera webcam driver software；If it is other then dynamically load Camera webcam driver softwares, and judge identifier such as
When fruit is 1, then dynamic change Camera webcam driver parameter is only one camera；When if it is 2, then dynamic is changed
Camera webcam driver parameter is that there are four cameras.This ensure that Camera camera different in each product can
It works normally.Here the installation condition (whether installing, Setup Type) of Camera camera identification symbol and Camera camera
It is also one-to-one.
GPS navigation under this platform in each product is optionally that, for example, some products have, some products do not have,
E2The GPS hwid stored in PROM is the no GPS of 0 expression, 1 indicates GPS, and program is in upper electricity operation from E2PROM
Middle reading GPS hwid, if it is 1, then dynamically load GPS navigation software；If it is 0, then it is soft to be not loaded with GPS navigation
Part；This ensure that each product can work normally.Under normal conditions, default drives comprising GPS navigation soft when leaving the factory
Part.
Bluetooth bluetooth under this platform in each product be optional and gPS class seemingly, program is in upper electricity operation
According to from E2The identifier dynamically load read in PROM/be not loaded with the corresponding software of Bluetooth bluetooth, to ensure that each
A product can work normally.Under normal conditions, default includes Bluetooth bluetooth drive software when leaving the factory.
Based on above-mentioned platform, the present invention also provides a kind of automobile mounted Infotainment common application method, including it is as follows
Step:
E is written into each hwid2In PROM, each hwid be capable of the unique identification hardware parameter and/or
Installation condition；
From E2Each hwid is read in PROM；
The driving parameter or load/be not loaded with drive software that corresponding hardware is changed according to hwid, after enabling change
Each hardware driver software and driving parameter are adapted with hardware.
Specifically comprise the following steps:
By LCD display identifier, Touch Panel touchscreen identifier, Camera camera identification symbol, GPS navigation
E is written in identifier, Bluetooth bluetooth identifier2In PROM；LCD display identifier is capable of unique identification LCD display
Size or resolution ratio, Touch Panel touch screen are capable of the size or resolution ratio of unique identification Touch Panel touch screen,
Camera camera identification accords with the installation condition for capableing of unique identification Camera camera, and GPS navigation identifier can be marked uniquely
Know the installation condition of GPS navigation, Bluetooth bluetooth identifier is capable of the installation condition of unique identification Bluetooth bluetooth；
From E2LCD display identifier is read in PROM；The driving of LCD display is changed according to LCD display identifier
Parameter, the resolution ratio in driving parameter after enabling change are adapted with LCD display；
From E2Touch Panel touchscreen identifier is read in PROM；It is changed according to Touch Panel touchscreen identifier
The driving parameter of TouchPanel touch screen, the resolution ratio and Touch Panel touch screen phase in driving parameter after enabling change
Adaptation；
From E2Camera camera identification symbol is read in PROM；It loads/is not loaded with according to Camera camera identification symbol
Camera webcam driver software and/or the driving parameter for changing Camera camera enable the Camera camera after changing
Drive software state and driving parameter are adapted with Camera camera；
From E2GPS navigation identifier is read in PROM；It is soft GPS navigation driving to be loaded/be not loaded with according to GPS navigation identifier
Part and/or the driving parameter for changing GPS navigation, the drive software state and driving parameter and GPS of the GPS navigation after enabling change
Navigation is adapted；
From E2Bluetooth bluetooth identifier is read in PROM；It loads/is not loaded with according to Bluetooth bluetooth identifier
Bluetooth bluetooth drive software and/or the driving parameter for changing Bluetooth bluetooth, the Bluetooth bluetooth after enabling change
Drive software state and driving parameter be adapted with Bluetooth bluetooth.
Except to E2PROM write-in identifier and primary control program are other than executing at first, other steps do not have successively suitable simultaneously
Sequence, can execute or concurrent processing simultaneously in any order.
It will be apparent that based on general-purpose platform of the invention, all products share a set of Linux software systems, without being each
A product establishes a set of Linux software systems, to save the carrying cost of software systems；And it only needs to arrange personnel and is based on
This set of Linux software systems is developed, and the development cost of software systems is reduced；Once platform improves to some extent, Ji Keying
It uses in all products, without being updated for each product, to reduce the maintenance cost of software systems.
The technical means disclosed in the embodiments of the present invention is not limited only to technological means disclosed in above embodiment, further includes
Technical solution consisting of any combination of the above technical features.It should be pointed out that for those skilled in the art
For, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also considered as
Protection scope of the present invention.
Claims (4)
1. a kind of automobile mounted Infotainment general-purpose platform characterized by comprising primary control program module, FLASH driving are soft
Part, RAM drive software, Tuner drive software, LCD drive software, touch screen driver software, Camera webcam driver software,
GPS navigation drive software and Bluetooth bluetooth drive software, the primary control program module are used for from E2LCD is read in PROM
Display screen identifier and Touch Panel touchscreen identifier, and according to identifier dynamic change LCD and touch screen driving ginseng
Number, so that driving parameter is adapted with LCD and touch screen；Primary control program module is also used to from E2Camera camera shooting is read in PROM
Head identifier, GPS navigation identifier and Bluetooth bluetooth identifier, and according to identifier dynamically load/be not loaded with Camera
Webcam driver software, GPS navigation drive software and Bluetooth bluetooth drive software and/or change Camera camera
Parameter, GPS navigation driving parameter and Bluetooth bluetooth is driven to drive parameter；LCD drive software, touch screen driver software,
Camera webcam driver software, GPS navigation drive software and Bluetooth bluetooth drive software are respectively used to driving LCD, touching
Screen, Camera camera, GPS navigation and Bluetooth are touched, is provided with hardware driving parameter in each drive software.
2. automobile mounted Infotainment general-purpose platform according to claim 1, which is characterized in that E2It is stored in advance in PROM
There is each hwid.
3. a kind of automobile mounted Infotainment common application method, which comprises the steps of:
E is written into each hwid2In PROM, each hwid is capable of the parameter and/or installation shape of the unique identification hardware
State；
From E2Each hwid is read in PROM；
The driving parameter or load/be not loaded with drive software that corresponding hardware is changed according to hwid, it is each hard after enabling change
Part drive software and driving parameter are adapted with hardware.
4. automobile mounted Infotainment common application method according to claim 3, which is characterized in that specifically include as follows
Step: LCD display identifier, Touch Panel touchscreen identifier, Camera camera identification symbol, GPS navigation are identified
E is written in symbol, Bluetooth bluetooth identifier2In PROM；LCD display identifier is capable of the size of unique identification LCD display
Or resolution ratio, Touch Panel touchscreen identifier are capable of the size or resolution ratio of unique identification Touch Panel touch screen,
Camera camera identification accords with the installation condition for capableing of unique identification Camera camera, and GPS navigation identifier can be marked uniquely
Know the installation condition of GPS navigation, Bluetooth bluetooth identifier is capable of the installation condition of unique identification Bluetooth bluetooth；
From E2LCD display identifier is read in PROM；The driving parameter of LCD display is changed according to LCD display identifier,
The resolution ratio in driving parameter after enabling change is adapted with LCD display；
From E2Touch Panel touchscreen identifier is read in PROM；Touch is changed according to Touch Panel touchscreen identifier
The driving parameter of Panel touch screen, the resolution ratio in driving parameter after enabling change are adapted with Touch Panel touch screen；
From E2Camera camera identification symbol is read in PROM；Camera is loaded/is not loaded with according to Camera camera identification symbol to take the photograph
As the driving parameter of head drive software and/or change Camera camera, the drive software of the Camera camera after enabling change
State and driving parameter are adapted with Camera camera；
From E2GPS navigation identifier is read in PROM；According to GPS navigation identifier load/be not loaded with GPS navigation drive software and/
Or the driving parameter of change GPS navigation, the drive software state and driving parameter and GPS navigation of the GPS navigation after enabling change
It is adapted；
From E2Bluetooth bluetooth identifier is read in PROM；It loads/is not loaded with according to Bluetooth bluetooth identifier
Bluetooth bluetooth drive software and/or the driving parameter for changing Bluetooth bluetooth, the Bluetooth bluetooth after enabling change
Drive software state and driving parameter be adapted with Bluetooth bluetooth.
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Application publication date: 20190226 |