CN105015344A - Fully virtual automobile instrument system, working method thereof and automobile with the system - Google Patents
Fully virtual automobile instrument system, working method thereof and automobile with the system Download PDFInfo
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- CN105015344A CN105015344A CN201510340829.0A CN201510340829A CN105015344A CN 105015344 A CN105015344 A CN 105015344A CN 201510340829 A CN201510340829 A CN 201510340829A CN 105015344 A CN105015344 A CN 105015344A
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Abstract
The invention relates to a fully virtual automobile instrument system, a working method thereof and an automobile with the system. The fully virtual automobile instrument system comprises a main processor module in which an operation system is embedded, wherein the main processor module is used for providing a graphical interface of an automobile virtual instrument and automobile state data to an image module; and then the graphical interface of the automobile virtual instrument and the automobile state data are displayed by a display module; the image module is also used for detecting a working state of the main processor module in real time and requesting an auxiliary MCU (Microprogrammed Control Unit) module to transmit the automobile state data to the image module when the main processor module has no response; and the automobile state data are displayed by the display module after being transmitted to the image module. According to the fully virtual automobile instrument system provided by the invention, after the main processor module is judged in a crash state through the image module, the main processor module is replaced by the auxiliary MCU module to display corresponding driving data on a virtual instrument panel for a driver to check; and moreover, the main processor module is reactivated in the background without affecting the driving experience of the driver. A technical problem that the virtual instrument cannot obtain vehicle running data (the driving data) because the embedded operation system comes into a crash is effectively avoided.
Description
Technical field
The present invention relates to a kind of virtual instrument, particularly relate to a kind of full virtual car meter system, method of work and the automobile of this system is installed.
Background technology
In auto meter field, generally adopt traditional instrument as mechanical type instrument or the pointer meters dish etc. with LCDs, but only show the vehicle parameter about driving states.Also there is a lot of auto meter production firm to develop virtual instrument, namely adopt the main processor modules being built-in with operating system, carry out touch control operation and parameter display by touch-screen.
Because vehicle intellectualized degree improves, the traveling of automobile all the more relies on the work of vehicle-mounted computer, although the built-in operating system stability of processor module is better, be not easy to occur the phenomenons such as deadlock, but this low probability event is once occur, namely chaufeur cannot obtain vehicle operation data, causes to lose control of one's vehicle, causes traffic accident.
Summary of the invention
The object of this invention is to provide a kind of full virtual car meter system and method for work thereof, to solve when driving, if main processor modules is without response, then full virtual car meter system cannot display line car data, easily causes technical matters to lose control of one's vehicle.
In order to solve the problems of the technologies described above, the invention provides a kind of full virtual car meter system, comprise: the main processor modules of Built In Operating System, for providing graphical interfaces and the vehicle condition data of automobile virtual instrument to image module, to be shown by display module; Described image module is also for detecting main processor modules mode of operation in real time, and when main processor modules is without response, this image module is suitable for asking auxiliary MCU module vehicle condition data to be sent to image module for display module display.
Further, described auxiliary MCU module adopts micro controller system, and described image module is also connected with a Flash module, and this Flash module stores the graphical interfaces of automobile virtual instrument; When image module records main processor modules without response, the vehicle condition data of access are sent to image module by described image module request micro controller system, and vehicle condition data show in display module in conjunction with graphical interfaces by described image module.
Further, described image module is also suitable for activating the main processor modules without response, and after main processor modules activates, receives vehicle condition data by described main processor modules, and be sent to image module, to be shown by display module with regard to vehicle condition data and described graphical interfaces; Meanwhile, described image module stops receiving the vehicle condition data from micro controller system.
Another aspect, present invention also offers a kind of method of work of full virtual car meter system, namely be suitable for providing the main processor modules of virtual instrument graphical interfaces and vehicle condition data without when responding when image module records, this image module request assists MCU module vehicle condition data to be supplied to display module display.
Further, described main processor modules Built In Operating System and be suitable for the graphical interfaces that automobile virtual instrument is provided, and the vehicle condition data it received and this graphical interfaces are sent to image module, image module drives display module to show described graphical interfaces and vehicle condition data.
Further, the method by auxiliary MCU module vehicle condition data being supplied to display module display is comprised: described auxiliary MCU module adopts micro controller system, described micro controller system is connected with image module, and this image module is also connected with a Flash module, this Flash module stores the graphical interfaces of automobile virtual instrument; When image module records main processor modules without response, the vehicle condition data of access are sent to image module by described image module request micro controller system, and vehicle condition data show in display module in conjunction with graphical interfaces by described image module.
Further, described image module is also suitable for activating the main processor modules without response, and after main processor modules activates, receives vehicle condition data by described main processor modules, and be sent to image module, to be shown by display module with regard to vehicle condition data and described graphical interfaces; Meanwhile, described image module stops receiving the vehicle condition data from micro controller system.
Further, described image module judges that main processor modules comprises with or without the method for response: described image module stochastic generation one calculates formula, and this calculation formula is sent to main processor modules, and main processor modules will result in and send back to image module, described image module is verified from the result calculated and returning results of main processor modules, if the result is different, then judge that main processor modules is without response.
The third aspect, on the basis of above-mentioned full virtual car meter system, present invention also offers a kind of automobile, this automobile is provided with described full virtual car meter system.
The invention has the beneficial effects as follows, the present invention is quick by auxiliary MCU module, stable advantage, after image module judges that the main processor modules of Built In Operating System crashes, main processor modules is replaced to be presented on virtual meter panel by corresponding line car data, check for chaufeur, and reactivate main processor modules by image module on backstage, and then do not affect the driving experience of chaufeur, when chaufeur has no to discover, complete main processor modules fault detection, auxiliary MCU module is replaced, the process that main processor modules is restarted, actv. is avoided causing virtual instrument cannot obtain the technical matters of vehicle operation data (travelling data) because Built In Operating System crashes, safety control is provided for being tending towards intelligentized driving system.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the functional block diagram of full virtual car meter system of the present invention.
Detailed description of the invention
In conjunction with the accompanying drawings, the present invention is further detailed explanation.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present invention are described in a schematic way, and therefore it only shows the formation relevant with the present invention.
Embodiment 1
Fig. 1 is the functional block diagram of full virtual car meter system of the present invention.In figure, the four-headed arrow of main processor modules and image module represents handshake, and individual event arrow represents image signal transmission.
As shown in Figure 1, the full virtual car meter system of one of the present invention, comprising: the main processor modules of Built In Operating System, for providing graphical interfaces and the vehicle condition data of automobile virtual instrument to image module, to be shown by display module; Described image module is also for detecting main processor modules mode of operation in real time, and when main processor modules is without response, this image module is suitable for asking auxiliary MCU module vehicle condition data to be sent to image module for display module display.
Wherein, main processor modules be that main processor modules crashes, Built In Operating System crashes without response definition, system without response, treater is without phenomenons such as responding, go offline.
Full virtual car meter system of the present invention replaces traditional machinery instrument with display automobile status data by display module, and namely display module is by graphical interfaces or graphical interfaces display virtual meter panel.
Concrete, described main processor modules, auxiliary MCU module are connected with the data-interface of car running computer, to obtain vehicle condition data.Vehicle condition data such as but not limited to onboard sensor data, driving states data, i.e. the data such as oil consumption, the speed of a motor vehicle, tire pressure, engine speed, water temperature.Described display module is such as but not limited to employing LCDs (LCD of 1920 x 720 resolution), touch-screen.
Further, described main processor modules is suitable for the graphical interfaces (this graphic interface is such as but not limited to employing 3D interface, 2D interface) providing automobile virtual instrument, and the vehicle condition data it received and this graphical interfaces are sent to described image module, show for display module.Described main processor modules comprises: MCU unit and GPU unit, and wherein, described GPU unit supports 2D vector graphics computing and 3D graphics engine, and it is such as but not limited to employing iMx6 chip development; Described operating system is such as but not limited to operating systems such as employing Linux, Android, WindowCE, apples.
Further, described image module is also connected with a Flash module, and this Flash module stores the graphical interfaces (this graphic interface adopts 2D interface) of automobile virtual instrument; When main processor modules is without response, the vehicle condition data of access are sent to image module by described auxiliary MCU module, and above-mentioned data show in display module in conjunction with graphical interfaces by described image module.
Wherein, described image module is such as but not limited to modules such as employing FPGA, CPLD, and described auxiliary MCU module does not contain operating system such as but not limited to employing micro controller system, FPGA, CPLD etc., and can respond fast, good stability, the processing module that can not crash.Judge the working process of main processor modules without response (deadlock) to further illustrate this image module, described auxiliary MCU module is chosen micro controller system and is described, and namely utilizes micro controller system corresponding speed fast, stable, the advantage that can not crash.Concrete, when main processor modules cannot respond (during deadlock) primary processor can be replaced in time to carry out vehicle condition data Graphics Processing, the driving experience of chaufeur can not be affected, when chaufeur is not easy to discover, completes between main processor modules and micro controller system and switch.Judge the method whether main processor modules crashes, whether normally image module and main processor modules is such as adopted to pass through the work of handshake examinations main processor modules, if main processor modules is without response, then judge that this main processor modules crashes, then image module sends a request to described auxiliary MCU module, described auxiliary MCU module replaces main processor modules process vehicle condition data, is namely sent to image module, shows for display module.
And, can also verify whether main processor modules crashes by the result calculating algorithm, such as described image module generates a calculation formula, such as 3+4-3, and this calculation formula is sent to main processor modules, and main processor modules will result in and send back to image module, this image module is verified from the result calculated and returning results of main processor modules, see that whether result is identical, to judge whether primary processor crashes, and calculating formula is produced at random by image module, improves the reliability of automobile whole system.
Further, described image module is also suitable for activating the main processor modules without response, and after main processor modules activates, receives vehicle condition data by described main processor modules, and be sent to image module, to be shown by display module with regard to vehicle condition data and described graphical interfaces; Meanwhile, described image module stops receiving the vehicle condition data from micro controller system, and namely described image module receives the vehicle condition data from main processor modules.The method of concrete activation main processor modules comprises: the reset terminal of described image module to main processor modules inputs a reset signal, makes it reset; If cannot reset, then open after can controlling the supply module closedown of main processor modules, main processor modules is restarted.
Embodiment 2
On embodiment 1 basis, present invention also offers a kind of method of work of full virtual car meter system, namely be suitable for providing the main processor modules of virtual instrument graphical interfaces and vehicle condition data without when responding when image module records, this image module request assists MCU module vehicle condition data to be supplied to display module display.Further, described main processor modules Built In Operating System and be suitable for the graphical interfaces that automobile virtual instrument is provided, and the vehicle condition data it received and this graphical interfaces are sent to image module, image module drives display module to show described graphical interfaces and vehicle condition data.
Further, method vehicle condition data being supplied to display module display by auxiliary MCU module comprises:
Described auxiliary MCU module adopts micro controller system, and described micro controller system is connected with image module, and this image module is also connected with a Flash module, and this Flash module stores the graphical interfaces of automobile virtual instrument; When image module records main processor modules without response, the vehicle condition data of access are sent to image module by described image module request micro controller system, and vehicle condition data show in display module in conjunction with graphical interfaces by described image module.
Described image module is also suitable for activating the main processor modules without response, and after main processor modules activates, receive vehicle condition data by described main processor modules, and be sent to image module, to be shown by display module with regard to vehicle condition data and described graphical interfaces; Meanwhile, described image module stops receiving the vehicle condition data from micro controller system, to receive the vehicle condition data from main processor modules.Wherein, the described image module mode stopping receiving from the vehicle condition data of micro controller system can adopt and arrange Port Priority rank by image module, priority by the image data interface of main processor modules transmission is set to the highest, when this image data interface responds, the image data interface of auxiliary MCU module transmission is closed; Or initiatively close auxiliary MCU module transmit image data by the main processor modules after reactivating.
Described image module judges that main processor modules comprises with or without the method for response: described image module stochastic generation one calculates formula, and this calculation formula is sent to main processor modules, and main processor modules will result in and send back to image module, described image module is verified from the result calculated and returning results of main processor modules, if the result is different, then judge that main processor modules is without response.Concrete handshake procedure has carried out related description in embodiment 1.
Embodiment 3
On embodiment 1 basis, present invention also offers a kind of automobile, this automobile is provided with described full virtual car meter system.
With above-mentioned according to desirable embodiment of the present invention for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this invention technological thought, can carry out various change and amendment completely.The technical scope of this invention is not limited to the content on specification sheets, must determine its technical scope according to right.
Claims (9)
1. a full virtual car meter system, is characterized in that, comprising:
The main processor modules of Built In Operating System, for providing graphical interfaces and the vehicle condition data of automobile virtual instrument to image module, to show by display module;
Described image module is also for detecting main processor modules mode of operation in real time, and when main processor modules is without response, this image module is suitable for asking auxiliary MCU module vehicle condition data to be sent to image module for display module display.
2. full virtual car meter system according to claim 1, is characterized in that, described auxiliary MCU module adopts micro controller system, and described image module is also connected with a Flash module, and this Flash module stores the graphical interfaces of automobile virtual instrument;
When image module records main processor modules without response, the vehicle condition data of access are sent to image module by described image module request micro controller system, and vehicle condition data show in display module in conjunction with graphical interfaces by described image module.
3. full virtual car meter system according to claim 2, it is characterized in that, described image module is also suitable for activating the main processor modules without response, and after main processor modules activates, vehicle condition data are received by described main processor modules, and be sent to image module, to be shown by display module with regard to vehicle condition data and described graphical interfaces; Meanwhile, described image module stops receiving the vehicle condition data from micro controller system.
4. a method of work for full virtual car meter system, is characterized in that,
Be suitable for providing the main processor modules of virtual instrument graphical interfaces and vehicle condition data without when responding when image module records, this image module request assists MCU module vehicle condition data to be supplied to display module display.
5. the method for work of full virtual car meter system according to claim 4, is characterized in that,
Described main processor modules Built In Operating System and be suitable for the graphical interfaces that automobile virtual instrument is provided, and the vehicle condition data it received and this graphical interfaces are sent to image module, image module drives display module to show described graphical interfaces and vehicle condition data.
6. the method for work of full virtual car meter system according to claim 5, is characterized in that, the method that vehicle condition data are supplied to display module display by described auxiliary MCU module comprises:
Described auxiliary MCU module adopts micro controller system, and described micro controller system is connected with image module, and this image module is also connected with a Flash module, and this Flash module stores the graphical interfaces of automobile virtual instrument;
When image module records main processor modules without response, the vehicle condition data of access are sent to image module by described image module request micro controller system, and vehicle condition data show in display module in conjunction with graphical interfaces by described image module.
7. the method for work of full virtual car meter system according to claim 6, it is characterized in that, described image module is also suitable for activating the main processor modules without response, and after main processor modules activates, vehicle condition data are received by described main processor modules, and be sent to image module, to be shown by display module with regard to vehicle condition data and described graphical interfaces; Meanwhile, described image module stops receiving the vehicle condition data from micro controller system.
8. the method for work of full virtual car meter system according to claim 7, it is characterized in that, described image module judges that main processor modules comprises with or without the method for response: described image module stochastic generation one calculates formula, and this calculation formula is sent to main processor modules, and main processor modules will result in and send back to image module, described image module is verified from the result calculated and returning results of main processor modules, if the result is different, then judge that main processor modules is without response.
9. an automobile, is characterized in that, this automobile is provided with full virtual car meter system as claimed in claim 1.
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| CN111338317A (en) * | 2020-02-29 | 2020-06-26 | 惠州华阳通用电子有限公司 | Instrument system and implementation method thereof |
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