CN105034808A - Dual-system full-virtual automobile instrument system, working method and automobile - Google Patents
Dual-system full-virtual automobile instrument system, working method and automobile Download PDFInfo
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- CN105034808A CN105034808A CN201510342616.1A CN201510342616A CN105034808A CN 105034808 A CN105034808 A CN 105034808A CN 201510342616 A CN201510342616 A CN 201510342616A CN 105034808 A CN105034808 A CN 105034808A
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Abstract
The invention relates to a dual-system full-virtual automobile instrument system, a working method and an automobile provided with the system. The dual-system full-virtual automobile instrument system comprises a host processor module in which an operating system is installed, an auxiliary MCU (microprogrammed control unit) module and an image module, wherein the host processor module is used for providing a graphical interface and automobile status data of an automobile virtual instrument for the image module, and the graphical interface and the automobile status data are displayed through a display module; the auxiliary MCU module and the image module are used for simultaneously detecting the working status of the host processor module in real time, and the automobile status data is sent to the image module by the auxiliary MCU module when that the host processor module has no response is judged and is displayed by the display module. According to the dual-system full-virtual automobile instrument system disclosed by the invention, after that the host processor module is halted is judged, the auxiliary MCU module displays corresponding automobile running data on a virtual instrument panel instead of the host processor module for a driver to view; moreover, the host processor module is reactivated in background, therefore the technical problem that the automobile running data cannot be acquired by the virtual instrument due to the fact that the built-in operating system is halted is effectively avoided.
Description
Technical field
The present invention relates to a kind of virtual instrument, particularly relate to the full virtual car meter system of a kind of dual 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 the full virtual car meter system of a kind of dual system and method for work thereof, to solve when driving, if main processor modules is without response, then traditional full virtual car meter system cannot display line car data, easily cause technical matters to lose control of one's vehicle, and the anti-locking system erroneous judgement of actv., causes system frequently to restart activation.
In order to solve the problems of the technologies described above, the invention provides the full virtual car meter system of a kind of dual 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; Auxiliary MCU module and image module are used for detecting main processor modules mode of operation in real time simultaneously, with when judging main processor modules without response, by auxiliary MCU module, vehicle condition data being sent to image module and showing for display module.
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; After judgement main processor modules is without response, by micro controller system, the vehicle condition data of access are sent to image module, vehicle condition data show in display module in conjunction with graphical interfaces by described image module.
Further, described image module or micro controller system are 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.
Another aspect, present invention also offers the method for work of the full virtual car meter system of a kind of dual system, namely, when auxiliary MCU module and image module judge to be suitable for providing the main processor modules of virtual instrument graphical interfaces and vehicle condition data without response simultaneously, by auxiliary MCU module, vehicle condition data are supplied to display module and show.
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; After judgement main processor modules is without response, by micro controller system, the vehicle condition data of access are sent to image module, vehicle condition data show in display module in conjunction with graphical interfaces by described image module.
Further, described image module or micro controller system are 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.
Further, described image module and micro controller system judge that main processor modules comprises with or without the method for response: described image module and the micro controller system corresponding calculation formula of stochastic generation respectively, and corresponding calculation formula is sent to main processor modules respectively, and corresponding resulting in is sent back to image module and micro controller system by main processor modules respectively, described image module and micro controller system to be verified corresponding with returning results of main processor modules from resulting in respectively, if the result is all not identical, then judge that main processor modules is without response.
Further, described image module and micro controller system judge that main processor modules also comprises with or without the method for response: if the true fictitious time of the result one, again result in wait, resulted in last time if result in herein identical, then judge main processor modules fault, activate this fault main processor modules by described image module or micro controller system.
The third aspect, on the basis of the full virtual car meter system of above-mentioned dual system, present invention also offers a kind of automobile, and this automobile is provided with the full virtual car meter system of described dual system.
The invention has the beneficial effects as follows, the present invention is quick by auxiliary MCU module, stable advantage, after image module and auxiliary MCU module judge that the main processor modules of Built In Operating System crashes simultaneously, main processor modules is replaced to be presented on virtual meter panel by corresponding line car data by auxiliary MCU module, 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 the full virtual car meter system of dual 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 the full virtual car meter system of dual system of the present invention.In figure, main processor modules represents corresponding handshake respectively to the four-headed arrow of image module and auxiliary MCU module, and individual event arrow represents image signal transmission.
As shown in Figure 1, the full virtual car meter system of a kind of dual system 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; Auxiliary MCU module and image module are used for detecting main processor modules mode of operation in real time simultaneously, with when judging main processor modules without response, by auxiliary MCU module, vehicle condition data being sent to image module and showing for display module.
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.
Dual system of the present invention full virtual car meter system 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 1920x720 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 described vehicle condition 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.The working process of main processor modules without response (deadlock) is judged in order to further illustrate this image module and auxiliary MCU module, described auxiliary MCU module is chosen micro controller system and is described, namely utilize 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 such as employing image module and auxiliary MCU module be normal by the work of corresponding handshake examinations main processor modules to 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, namely image module is sent to, for display module display, the present invention adopts dual judgement, namely by image module and auxiliary MCU module and main processor modules twice confirmation, actv. prevents erroneous judgement, avoid because erroneous judgement causes main processor modules frequently to restart, affect travel safety.
And, can also verify whether main processor modules crashes by the result calculating algorithm, such as described image module and auxiliary MCU module (micro controller system) generate and calculate formula accordingly, such as 3+4-3, described calculation formula is also sent to main processor modules by 4+7-1, and main processor modules will result in and 4 and 10 send back to image module, this image module by certainly result in 4 and 10 and returning results of main processor modules 4 and 10 to verify, see that whether result is identical, to judge whether primary processor crashes, and calculating formula is produced at random by image module, improve the reliability of automobile whole system.
Further, described image module or micro controller system are 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, and namely described image module receives the vehicle condition data from main processor modules.The method of concrete activation main processor modules comprises: described image module or the reset terminal of auxiliary MCU module to main processor modules input a reset signal, make 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 the method for work of the full virtual car meter system of a kind of dual system, namely, when auxiliary MCU module and image module judge to be suitable for providing the main processor modules of virtual instrument graphical interfaces and vehicle condition data without response simultaneously, by auxiliary MCU module, vehicle condition data are supplied to display module and show.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; After judgement main processor modules is without response, by micro controller system, the vehicle condition data of access are sent to image module, vehicle condition data show in display module in conjunction with graphical interfaces by described image module.
Described image module or micro controller system are 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 and micro controller system judge that main processor modules comprises with or without the method for response: described image module and the micro controller system corresponding calculation formula of stochastic generation respectively, and corresponding calculation formula is sent to main processor modules respectively, and corresponding resulting in is sent back to image module and micro controller system by main processor modules respectively, described image module and micro controller system to be verified corresponding with returning results of main processor modules from resulting in respectively, if the result is all not identical, then judge that main processor modules is without response.Concrete handshake procedure has carried out related description in embodiment 1.
And, described image module and micro controller system judge that main processor modules also comprises with or without the method for response: if the true fictitious time of the result one, again result in wait, resulted in last time if result in herein identical, then judge main processor modules fault, activate this fault main processor modules by described image module or micro controller system.
Embodiment 3
On embodiment 1 basis, present invention also offers a kind of automobile, this automobile is provided with the full virtual car meter system of described dual 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 (10)
1. the full virtual car meter system of dual 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;
Auxiliary MCU module and image module are used for detecting main processor modules mode of operation in real time simultaneously, with when judging main processor modules without response, by auxiliary MCU module, vehicle condition data being sent to image module and showing for display module.
2. the full virtual car meter system of dual 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 judging main processor modules without response, the vehicle condition data of access are sent to image module by described micro controller system, and vehicle condition data show in display module in conjunction with graphical interfaces by described image module.
3. the full virtual car meter system of dual system according to claim 2, it is characterized in that, described image module or micro controller system are 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 the full virtual car meter system of dual system, is characterized in that,
When auxiliary MCU module and image module judge to be suitable for providing the main processor modules of virtual instrument graphical interfaces and vehicle condition data without response simultaneously, by auxiliary MCU module, vehicle condition data are supplied to display module and show.
5. the method for work of the full virtual car meter system of dual 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 the full virtual car meter system of dual 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;
After judgement main processor modules is without response, by micro controller system, the vehicle condition data of access are sent to image module, vehicle condition data show in display module in conjunction with graphical interfaces by described image module.
7. the method for work of the full virtual car meter system of dual system according to claim 6, it is characterized in that, described image module or micro controller system are 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 the full virtual car meter system of dual system according to claim 7, it is characterized in that, described image module and micro controller system judge that main processor modules comprises with or without the method for response: described image module and the micro controller system corresponding calculation formula of stochastic generation respectively, and corresponding calculation formula is sent to main processor modules respectively, and corresponding resulting in is sent back to image module and micro controller system by main processor modules respectively, described image module and micro controller system to be verified corresponding with returning results of main processor modules from resulting in respectively, if the result is all not identical, then judge that main processor modules is without response.
9. the method for work of the full virtual car meter system of dual system according to claim 7, it is characterized in that, described image module and micro controller system judge that main processor modules also comprises with or without the method for response: if the true fictitious time of the result one, again result in wait, resulted in last time if result in herein identical, then judge main processor modules fault, activate this fault main processor modules by described image module or micro controller system.
10. an automobile, is characterized in that, this automobile is provided with the full virtual car meter system of dual system as claimed in claim 1.
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