CN114090496A - Single SOC multi-operation system device based on commercial vehicle cabin - Google Patents
Single SOC multi-operation system device based on commercial vehicle cabin Download PDFInfo
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Abstract
A single SOC multi-operation system device based on a commercial vehicle cabin comprises: a central control system and an instrument system; wherein: the system comprises a central control system, wherein the hardware adopts an MCU subsystem and an MPU subsystem, and the software adopts an android subsystem and is used for displaying and controlling the central control of the commercial vehicle; the instrument system adopts an MCU subsystem and an MPU subsystem as hardware and adopts a Linux subsystem as software for displaying and controlling the commercial vehicle instrument. The invention discloses a single SOC multi-operating system device based on a commercial vehicle cabin, which realizes a software implementation mode that a single SOC runs a plurality of operating systems through an SOC separation core technology.
Description
Technical Field
The invention relates to the field of commercial vehicles, in particular to a single SOC multi-operation system device based on a commercial vehicle cabin.
Background
At present, an intelligent virtual cabin system in the automobile industry is a product in the process of developing a new generation architecture based on a traditional whole automobile electronic and electric appliance architecture steering domain controller.
The product redefines the relationship between the user and the car. The traditional car cabin functional area layout is fragmented, and information overload brings barriers to human-vehicle interaction, so that the smart phone becomes an entrance of human-vehicle interaction. Along with the improvement of the automobile electronization degree, the intelligent cabin domain controller integrates a liquid crystal instrument, a central control screen and a multi-product fusion of the environment image function.
In the field of commercial vehicles, vehicles are tools on which customers live, and the customers using the vehicles have a lot of time and come together with the vehicles, so that the requirements on the technological intellectualization of the vehicles are higher and higher.
Meanwhile, compared with a passenger vehicle, the commercial vehicle is more focused on cost performance by customers, more is biased to practicability in the aspects of practicability and intelligence, and after all, the vehicle is used for earning money instead of being used. Therefore, the high price of the cabin product in the passenger vehicle market is not suitable for the commercial vehicle field, and a technology is required to solve the dilemma caused by the high price;
the intelligent cabin scheme in the passenger car market realizes that the same controller unit drives a plurality of operating systems and a plurality of liquid crystal display screens, and intelligent functions such as data sharing, data communication, multi-screen interaction and the like can be performed between the systems and between the screens. Before the advent of this method, the common methods for intelligent cockpit products were:
the method comprises the following steps that a plurality of SOCs are adopted to distribute boards on the same hardware design, each SOC drives an operating system and a corresponding liquid crystal display screen, and a false image is adopted to realize the product of an intelligent cabin; the intelligent cockpit product has the defects that the concept of product definition is not met, the appearance is realized by means of stealing the concept, the product is consistent with the traditional single instrument and single central control scheme, the product cost is increased, and the system instability is caused by the complexity of single board design;
the method comprises the steps that a virtualization technology is adopted, a third-party software scheme is utilized, software resources are allocated on the same soc, and a plurality of operating systems and a plurality of liquid crystal display screens are simulated on the soc; the third-party software scheme core technology is mastered in a few enterprises in foreign countries, the cost is millions, the customization demand support is poor, flexible and variable demand innovation of customers is difficult to meet, the service support is weak, the breakthrough of technical difficulty of the enterprises in the use process is difficult to meet, and the third-party software scheme core technology belongs to monopoly industry and is easy to be blocked by the neck;
the method for driving the multiple display screens is adopted, the multiple screens are driven on the same soc, and the same operating system is used for realizing the product functions of the intelligent cabin; the intelligent cockpit has the advantages that the main components of the intelligent cockpit product are the instrument and the central control, the instrument belongs to a safety part in an automobile part, the central control belongs to an entertainment part and has a networking function and complex functions, the central control is realized by using the same operating system, and potential safety hazards are brought to the instrument safety part.
Disclosure of Invention
In view of the above, the present invention has been made in order to provide a single SOC multiple operating system arrangement based on a commercial vehicle cabin that overcomes or at least partially solves the above problems.
In order to solve the technical problem, the embodiment of the application discloses the following technical scheme:
a single SOC multi-operation system device based on a commercial vehicle cabin comprises: a central control system and an instrument system; wherein:
the central control system is characterized in that the hardware adopts an MCU subsystem and an MPU subsystem, and the software adopts an android subsystem and is used for displaying and controlling the central control of the commercial vehicle;
the instrument system adopts an MCU subsystem and an MPU subsystem as hardware and adopts a Linux subsystem as software for displaying and controlling the commercial vehicle instrument.
Furthermore, the MCU subsystem realizes the control of driving switches of the vehicle lamps, the skylight and the like on the vehicle by collecting and filtering CAN bus data, LIN bus communication, vehicle analog quantity collection, sensor quantity collection and system dormancy management.
Further, the MPU system at least comprises a main control MPU, an internal memory DDR4, a storage EMMC, a power management chip, a radio chip, a sound effect processing module, a power amplifier module, a Bluetooth and WiFi module, a positioning module, a video output module, a video input module, a USB module and a 4G module.
Furthermore, an SOC separation core technology is adopted to divide single SOC resources, so that the android subsystem and the Linux subsystem operate on the same hardware platform.
Furthermore, the same DDR controller is shared between the instrument system and the central control system, the instrument system and the central control system are divided into different system spaces, and access to the DDR space between the instrument system and the central control system is controlled by permission.
Further, a specific method for accessing the DDR space between the instrumentation system and the central control system is as follows: and dividing the DDR space into an instrument system and a central control system, allocating corresponding access identities for the instrument system and the central control system, and matching the access identities corresponding to the instrument system and the central control system with the access rights of the divided corresponding DDR space.
Further, data interaction can be performed between the central control system and the instrument system, and the specific method comprises the following steps: the central control system and the instrument system respectively transmit data through the MBOX driver at each end, and the data are stored in an IPC driver receiving buffer area at the central control system end or the instrument system end according to user requirements, so that data interaction between the central control system and the instrument system is realized.
Furthermore, the central control system and the instrument system are subjected to reset management through the processor, and the processor performs parallel reset signal transmission on the central control system and the instrument system through IPC and IQR driving, so that normal operation of the central control system and the instrument system is not interfered.
The technical scheme provided by the embodiment of the invention has the beneficial effects that at least:
the invention discloses a single SOC multi-operation system device based on a commercial vehicle cabin, which comprises: a central control system and an instrument system; wherein: the system comprises a central control system, wherein the hardware adopts an MCU subsystem and an MPU subsystem, and the software adopts an android subsystem and is used for displaying and controlling the central control of the commercial vehicle; the instrument system adopts an MCU subsystem and an MPU subsystem as hardware and adopts a Linux subsystem as software for displaying and controlling the commercial vehicle instrument. The invention discloses a single SOC multi-operating system device based on a commercial vehicle cabin, which realizes a software implementation mode that a single SOC runs a plurality of operating systems through an SOC separation core technology.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a structural diagram of a single SOC multi-operation system device based on a commercial vehicle cabin in embodiment 1 of the present invention;
fig. 2 is a schematic diagram of memory access between an instrumentation system and a central control system according to embodiment 1 of the present invention;
fig. 3 is a schematic diagram of data interaction between an instrumentation system and a central control system in embodiment 1 of the present invention;
fig. 4 is a schematic view of resetting between the instrumentation system and the central control system in embodiment 1 of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
In order to solve the problems in the prior art, the embodiment of the invention provides a single-SOC multi-operating system device based on a commercial vehicle cabin.
Example 1
A single SOC multi-operation system device based on a commercial vehicle cabin, as shown in figure 1, comprises: a central control system and an instrument system; wherein:
the system comprises a central control system, wherein the hardware adopts an MCU subsystem and an MPU subsystem, and the software adopts an android subsystem and is used for displaying and controlling the central control of the commercial vehicle; specifically, the MCU subsystem realizes the control of driving switches of the vehicle lamps, the skylight and the like on the vehicle by collecting and filtering CAN bus data, LIN bus communication, vehicle analog quantity collection, sensor quantity collection and system dormancy management.
The instrument system adopts an MCU subsystem and an MPU subsystem as hardware and adopts a Linux subsystem as software for displaying and controlling the commercial vehicle instrument. Specifically, the MPU system at least comprises a main control MPU, a memory DDR4, a memory EMMC, a power management chip, a radio chip, a sound effect processing module, a power amplifier module, a Bluetooth and WiFi module, a positioning module, a video output module, a video input module, a USB module and a 4G module.
In this embodiment, an SOC separation core technology is adopted to divide a single SOC resource, so that the android subsystem and the Linux subsystem operate on the same hardware platform. Specifically, as the functions and performances of the existing chip are stronger and stronger, basically one soc has more than 4 cores of CPUs and more than 2 cores of GPUs; based on the rapid development of the soc, a software method is used for processing the separation technology of the hardware resources in the soc, so that the resource division of a hardware core is realized, and for example, a 2-core CPU + 1-core GPU is used for realizing an instrument operating system, and another 2-core CPU + 1-core GPU is used for realizing a central control operating system. In this embodiment, the central control system adopts an Android 9.0 operating system, the instrument system adopts a linux + QT operating system, and the dual operating systems operate on the same hardware platform. Through the SOC separation core technology, the requirements of intelligent cabin products are met, the software authorization cost of a third party is reduced, the hardware cost of multiple SOCs is reduced, and the price requirement of a commercial vehicle can be met in the cost performance.
In this embodiment, the same DDR controller is shared between the instrumentation system and the central control system, the instrumentation system and the central control system are divided into different system spaces, and access to the DDR space between the instrumentation system and the central control system is controlled by permission.
Specifically, as shown in fig. 2, the specific method for accessing the DDR space between the instrumentation system and the central control system is as follows: and dividing the DDR space into an instrument system and a central control system, allocating corresponding access identities to the instrument system and the central control system, and matching the access identities corresponding to the instrument system and the central control system with the access authority of the divided corresponding DDR space.
In this embodiment, data interaction may be performed between the central control system and the meter system, as shown in fig. 3, the specific method is as follows: the central control system and the instrument system respectively transmit data through the MBOX drive of each end, and the data are stored in an IPC drive receiving buffer area of the central control system end or the instrument system end according to user requirements, so that data interaction between the central control system and the instrument system is realized.
In this embodiment, the central control system and the instrument system perform reset management through the processor, and the processor performs parallel reset signal transmission on the central control system and the instrument system through IPC and IQR drivers, so as to ensure that normal operation of the central control system and the instrument system is not interfered. Specifically, as shown in fig. 4, the core reset of the Cortex-a53 quad core and the Cortex-a7 single core is adopted, and the Cortex-R5 single core is used for managing the reset of the central control and instrument systems, so that the normal operation of the other system is not influenced when one system is started.
The utility model discloses a many operating system devices of single SOC based on commercial car passenger cabin, includes: a central control system and an instrument system; wherein: the system comprises a central control system, wherein the hardware adopts an MCU subsystem and an MPU subsystem, and the software adopts an android subsystem and is used for displaying and controlling the central control of the commercial vehicle; the instrument system adopts an MCU subsystem and an MPU subsystem as hardware and adopts a Linux subsystem as software for displaying and controlling the commercial vehicle instrument. The invention discloses a single SOC multi-operating system device based on a commercial vehicle cabin, which realizes a software implementation mode that a single SOC runs a plurality of operating systems through an SOC separation core technology.
It should be understood that the specific order or hierarchy of steps in the processes disclosed is an example of exemplary approaches. Based upon design preferences, it is understood that the specific order or hierarchy of steps in the processes may be rearranged without departing from the scope of the present disclosure. The accompanying method claims present elements of the various steps in a sample order, and are not intended to be limited to the specific order or hierarchy presented.
In the foregoing detailed description, various features are grouped together in a single embodiment for the purpose of streamlining the disclosure. This method of disclosure is not to be interpreted as reflecting an intention that the claimed embodiments of the subject matter require more features than are expressly recited in each claim. Rather, as the following claims reflect, invention lies in less than all features of a single disclosed embodiment. Thus, the following claims are hereby expressly incorporated into the detailed description, with each claim standing on its own as a separate preferred embodiment of the invention.
Those of skill would further appreciate that the various illustrative logical blocks, modules, circuits, and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both. To clearly illustrate this interchangeability of hardware and software, various illustrative components, blocks, modules, circuits, and steps have been described above generally in terms of their functionality. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the overall system. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present disclosure.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. A software module may reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be integral to the processor. The processor and the storage medium may reside in an ASIC. The ASIC may reside in a user terminal. Of course, the processor and the storage medium may reside as discrete components in a user terminal.
For a software implementation, the techniques described herein may be implemented with modules (e.g., procedures, functions, and so on) that perform the functions described herein. The software codes may be stored in memory units and executed by processors. The memory unit may be implemented within the processor or external to the processor, in which case it can be communicatively coupled to the processor via various means as is known in the art.
What has been described above includes examples of one or more embodiments. It is, of course, not possible to describe every conceivable combination of components or methodologies for purposes of describing the aforementioned embodiments, but one of ordinary skill in the art may recognize that many further combinations and permutations of various embodiments are possible. Accordingly, the embodiments described herein are intended to embrace all such alterations, modifications and variations that fall within the scope of the appended claims. Furthermore, to the extent that the term "includes" is used in either the detailed description or the claims, such term is intended to be inclusive in a manner similar to the term "comprising" as "comprising" is interpreted when employed as a transitional word in a claim. Furthermore, any use of the term "or" in the specification of the claims is intended to mean a "non-exclusive or".
Claims (8)
1. A single SOC multi-operation system device based on a commercial vehicle cabin is characterized by comprising: a central control system and an instrument system; wherein:
the system comprises a central control system, wherein the hardware adopts an MCU subsystem and an MPU subsystem, and the software adopts an android subsystem and is used for displaying and controlling the central control of the commercial vehicle;
the instrument system adopts an MCU subsystem and an MPU subsystem as hardware and adopts a Linux subsystem as software for displaying and controlling the commercial vehicle instrument.
2. The single-SOC multi-operating-system device based on the commercial vehicle cabin as claimed in claim 1, wherein the MCU subsystem controls the driving switches of the vehicle lights, the skylight and the like by collecting and filtering CAN bus data, LIN bus communication, vehicle analog quantity collection, sensor quantity collection and system sleep management.
3. The single SOC multi-operation system device based on the commercial vehicle cabin as claimed in claim 1, wherein the MPU system at least comprises a main control MPU, a memory DDR4, a memory EMMC, a power management chip, a radio chip, an audio processing, a power amplifier module, a Bluetooth & WiFi module, a positioning module, a video output module, a video input module, a USB module, and a 4G module.
4. The single-SOC multi-operating-system device based on the commercial vehicle cabin as claimed in claim 1, wherein a SOC separation core technology is adopted to divide single SOC resources, so that an android subsystem and a Linux subsystem operate on the same hardware platform.
5. The single SOC multiple operating system device based on the commercial vehicle cabin as claimed in claim 1, wherein the same DDR controller is shared between the instrumentation system and the central control system, the instrumentation system and the central control system are divided into different system spaces, and access to the DDR space between the instrumentation system and the central control system is controlled by authority.
6. The single SOC multi-operating system device based on the commercial vehicle cabin as claimed in claim 5, wherein the specific method for accessing DDR space between the instrumentation system and the central control system is as follows: and dividing the DDR space into an instrument system and a central control system, allocating corresponding access identities for the instrument system and the central control system, and matching the access identities corresponding to the instrument system and the central control system with the access rights of the divided corresponding DDR space.
7. The single-SOC multi-operating-system device based on the commercial vehicle cabin is characterized in that data interaction can be carried out between a central control system and an instrument system, and the specific method comprises the following steps: the central control system and the instrument system respectively transmit data through the MBOX driver at each end, and the data are stored in an IPC driver receiving buffer area at the central control system end or the instrument system end according to user requirements, so that data interaction between the central control system and the instrument system is realized.
8. The single-SOC multi-operating-system device based on the commercial vehicle cabin is characterized in that the central control system and the instrument system are subjected to reset management through the processor, and the processor performs parallel reset signal transmission on the central control system and the instrument system through IPC and IQR driving to ensure that the central control system and the instrument system are not interfered in normal operation.
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