CN115174611A - Vehicle-mounted virtualization platform - Google Patents
Vehicle-mounted virtualization platform Download PDFInfo
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- CN115174611A CN115174611A CN202210613630.0A CN202210613630A CN115174611A CN 115174611 A CN115174611 A CN 115174611A CN 202210613630 A CN202210613630 A CN 202210613630A CN 115174611 A CN115174611 A CN 115174611A
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- 238000005192 partition Methods 0.000 claims abstract description 91
- 238000004891 communication Methods 0.000 claims abstract description 38
- 238000005457 optimization Methods 0.000 claims description 4
- 238000000638 solvent extraction Methods 0.000 abstract description 4
- 230000006870 function Effects 0.000 description 19
- 238000005516 engineering process Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 238000002955 isolation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009440 infrastructure construction Methods 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/20—Network architectures or network communication protocols for network security for managing network security; network security policies in general
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1097—Protocols in which an application is distributed across nodes in the network for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS]
Abstract
The invention provides a vehicle-mounted virtualization platform, comprising: n partition modules, a bus application framework module and a hardware platform module; the bus application framework module is respectively in communication connection with each partition module, and the hardware platform module is in communication connection with the bus application framework module; each partition module is stored with a service function application program; the bus application framework module is used for transmitting the application data of the partition module to the hardware platform module so that the hardware platform module can run, and N is a positive integer. The application running on different hardware can be run on the same hardware platform through a partitioning mechanism, and the application running on different hardware does not affect each other. It is here possible to implement different SIL level service function software running in the same hardware without reducing the security level of the higher SIL level application software.
Description
Technical Field
The invention relates to the technical field of communication, in particular to a vehicle-mounted virtualization platform.
Background
In recent years, the urban rail transit technology is rapidly developed, the technical equipment level is continuously improved, the infrastructure construction and operation performance is obvious, people can travel more conveniently, but with the development of the technology, the urban rail transit faces new challenges, and the urban rail transit has irreplaceable effects in public transport due to the characteristics of large transportation volume, small separation, punctuation rate and the like.
The urban rail transit is developed aiming at vehicle-mounted equipment and comprises a vehicle-mounted automatic driving subsystem, a vehicle-mounted automatic protection subsystem, a passenger service subsystem, a vehicle management subsystem and other business subsystems. The equipment manufacturers are therefore equipped with a large number of devices for supporting the service subsystems in stages in the limited space of the vehicle and have formed an increasing trend year by year.
Since the urban rail transit signal system is divided into different network Security Integrity Levels (SILs) aiming at the subsystem devices bearing different service functions, how to ensure the availability and the Safety of the high SIL Level function after the software of the subsystems with different SILs levels is fused with each other becomes a problem which needs to be solved urgently.
Disclosure of Invention
The invention provides a vehicle-mounted virtualization platform, which is used for overcoming the defect that in the prior art, after software of subsystems with different SIL grades is fused with each other, the usability and the safety of a function with a high SIL grade are guaranteed.
The invention provides a vehicle-mounted virtualization platform, which comprises: the system comprises N partition modules, a bus application framework module and a hardware platform module;
the bus application framework module is respectively in communication connection with each partition module, and the hardware platform module is in communication connection with the bus application framework module;
each partition module is stored with a service function application program;
the bus application framework module is used for transmitting the application data of the partition module to the hardware platform module so as to enable the hardware platform module to run, and N is a positive integer.
The invention provides a vehicle-mounted virtualization platform, which comprises: the bus application framework sub-module and the bus communication equipment driving sub-module;
the bus application framework submodule is used for transmitting the application data of the partition module to other partition modules, and is also used for transmitting the application data of the partition module to the bus communication equipment driving submodule;
the bus communication equipment driving submodule is used for carrying out type optimization on the application data according to the interface type of the hardware platform module and transmitting the optimized application data to the hardware platform module.
According to the vehicle-mounted virtualization platform provided by the invention, under the condition that a first partition memory module in the N partition modules has non-safety codes, a second partition module in the N partition modules normally operates.
According to the vehicle-mounted virtualization platform provided by the invention, the bus application framework module is specifically used for:
and under the condition of receiving a plurality of application messages sent by the N partition modules, determining the safe communication protocol and the sending priority of each application message based on the safety integrity level corresponding to the plurality of application messages.
According to the vehicle-mounted virtualization platform provided by the invention, the N partition modules all run in the same board card, and the safety integrity levels of the service function application programs stored in the partition modules are different.
According to the vehicle-mounted virtualization platform provided by the invention, a client operating system is also operated in the partition module.
According to the vehicle-mounted virtualization platform provided by the invention, the bus application framework module is used for shielding visibility of different field buses to business function application programs in the partition module.
The vehicle-mounted virtualization platform provided by the invention can realize that applications running on different hardware run on the same hardware platform through a partition mechanism, and the applications do not influence each other. It is here possible to implement different SIL level service function software running in the same hardware without reducing the security level of the higher SIL level application software.
Drawings
In order to more clearly illustrate the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural diagram of a vehicle-mounted virtualization platform according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of a bus application framework module described in the embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 is a schematic structural diagram of a vehicle-mounted virtualization platform provided in an embodiment of the present application, as shown in fig. 1, including: n partition modules 11, a bus application framework module 12 and a hardware platform module 13;
the bus application framework module 12 is in communication connection with each partition module 11, and the hardware platform module 13 is in communication connection with the bus application framework module 12;
each partitioning module 11 stores a service function application program;
the bus application framework module 12 is configured to transmit the application data of the partition module 11 to the hardware platform module 13, so that the hardware platform module 13 runs, where N is a positive integer.
The host operating system may specifically be a basic operating system of the vehicle-mounted virtualization platform.
Specifically, the N partition modules described in the embodiments of the present application specifically refer to configuring system resources (memory, IO, and the like) through a partition mechanism, and establishing a plurality of partition modules, where the partition modules include resources allocated by a system, and the partition modules are isolated from each other.
The partition modules realize mutual communication among different partitions on the same physical machine through message queues, pipelines, sockets and other modes.
In the embodiment of the application, a bus application framework module is provided for the application of the field bus, and the differences of the use method of the underlying equipment and the standard protocol stack are shielded. Here, different service qualities need to be provided by the bus application framework module according to the service function SIL grade of the partition application
In the embodiment of the present application, the partition isolation technology makes each partition unable to access the space resources outside the partition module, and the external partition module also unable to access the space resources inside the partition module. Different applications run in different partition modules, and the applications cannot sense the existence of other partition module applications due to isolation between partitions, so that the whole hardware resource is considered to be shared independently. Therefore, the applications running on different hardware can run on the same hardware platform through the partitioning mechanism, and the applications do not affect each other. It is here possible to implement different SIL level service function software running in the same hardware without reducing the security level of the higher SIL level application software.
In the embodiment of the present application, the hardware platform module may include vehicle-mounted devices each running a service function application in the partition module.
In the embodiment of the application, the applications running on different hardware can run on the same hardware platform through a partitioning mechanism, and the applications do not affect each other. It is here possible to implement different SIL level service function software running in the same hardware without reducing the security level of the higher SIL level application software. In addition, the vehicle-mounted application based on the partition technology widely supports various hardware platforms across the hardware platforms, so that complex software functions can be rapidly developed and transplanted to different hardware platforms. The virtualization technology can effectively isolate the program operating environment among all service subsystems, and can effectively reduce the occupancy rate of the limited vehicle space on the premise of ensuring the safety and the availability of signal products.
Optionally, the bus application framework module includes: the bus application framework sub-module and the bus communication equipment driving sub-module;
the bus application framework submodule is used for transmitting the application data of the partition module to other partition modules, and is also used for transmitting the application data of the partition module to the bus communication equipment driving submodule;
the bus communication equipment driving submodule is used for carrying out type optimization on the application data according to the interface type of the hardware platform module and transmitting the optimized application data to the hardware platform module.
Specifically, fig. 2 is a schematic structural diagram of a bus application framework module described in the embodiment of the present application, and as shown in fig. 2, the bus application framework module 12 includes: a bus application framework sub-module 121 and a bus communication device driver sub-module 122.
In the embodiment of the present application, since various different interface types may exist in the hardware platform module 13, and the bus application framework module cannot be directly applied to each type of interface when performing data transmission, the sub-module 122 needs to be driven by the bus communication device in the embodiment of the present application, so as to implement adaptation to different interfaces.
In this embodiment, the bus communication device driver sub-module 122 may implement compatibility with various data interfaces during data transmission, and after receiving the data transmitted by each partition, the bus application framework sub-module 121 may further transmit the data to the bus communication device driver sub-module 122, and transmit the data to a corresponding interface in the hardware device through the bus communication device driver sub-module 122.
In the embodiment of the application, the method comprises the following steps: the bus application framework submodule and the bus communication equipment driving submodule support various data interfaces.
Optionally, when a first partition module of the N partition modules has a non-secure code, a second partition module of the N partition modules operates normally.
In the embodiment of the application, data between the partition modules run independently without mutual influence, and when the application software of the first partition memory module and the application software of the second partition memory module are started, if the application software of the first partition memory module has a non-safety code.
And checking whether the application software of the partition 1 abnormally exits from running or the partition 2 normally runs according to the original design logic through a serial port, a network port or a command console.
In the embodiment of the application, the safety of each partition can be ensured through the partition isolation technology.
Optionally, the bus application framework module is specifically configured to:
and under the condition of receiving a plurality of application messages sent by the N partition modules, determining the safe communication protocol and the sending priority of each application message based on the safety integrity level corresponding to the plurality of application messages.
Specifically, in the embodiment of the present application, the secure communication protocol and the sending priority level of the application message may be determined according to different security integrity levels, where a higher security integrity level is used for a message, the corresponding sending priority level is also higher, and the security level of the secure communication protocol of a higher security integrity level is lower for a message.
For example, a first partition memory module and a second partition memory module are started, the application software in the first partition memory module sends data once according to 200ms, and the application software in the second partition memory module sends data once according to 200 ms.
And checking through the serial port log, and when the bus application framework module receives the information of which the application level is 4 and the application level is 2 in the same period, the bus application framework distinguishes the sending priority according to the application level. And adding a corresponding safety communication protocol for the corresponding information data by the bus application framework according to the application level.
In the embodiment of the application, the secure communication protocol and the sending priority of each application message are further specified according to the security integrity level, so that the sending order of the bus application framework module is ensured.
Optionally, the N partition modules all operate on the same board card, and the service function application programs stored in the partition modules have different safety integrity levels.
Optionally, a client operating system is also running in the partition module.
Optionally, the bus application framework module is configured to shield visibility of different fieldbus to the service function application in the partition module.
Specifically, in the embodiment of the present application, since application software with different SIL levels is changed from running on respective independent hardware boards to running on the same board, the original communication mode of the industrial ethernet, the CAN bus, 485, and the like may be changed to a software communication mode, for example: message queues, pipes, local loopback sockets, and the like. The complexity of the vehicle-mounted cabinet can be effectively reduced.
The bus application framework can effectively shield the visibility of different field buses for application software, and is favorable for the transplantation, the deployment and the rapid development of the application software. The bus application framework can provide different services for the application according to real-time performance and safety of different types of information and safety levels of different application software.
The key points are easier to realize related function deployment and remote or local restart service functions, and are more favorable for field experiments and operation maintenance.
As an alternative embodiment, an in-vehicle virtualization platform includes: the system comprises N partition modules, a bus application framework module and a hardware platform module;
wherein, the bus application framework module includes: the bus application framework sub-module and the bus communication equipment driving sub-module;
the bus application framework submodule is used for transmitting the application data of the partition module to other partition modules, and is also used for transmitting the application data of the partition module to the bus communication equipment driving submodule;
the bus communication equipment driving submodule is used for carrying out type optimization on the application data according to the interface type of the hardware platform module and transmitting the optimized application data to the hardware platform module.
The bus application framework module is respectively in communication connection with each partition module, and the hardware platform module is in communication connection with the bus application framework module;
each partition module is stored with a service function application program;
the bus application framework module is used for transmitting the application data of the partition module to the hardware platform module so as to enable the hardware platform module to run, and N is a positive integer.
In the application embodiment, the vehicle-mounted application based on the partition technology widely supports various hardware platforms across hardware platforms, so that complex software functions can be rapidly developed and transplanted to different hardware platforms. The program running environment among all service subsystems can be effectively isolated based on the virtualization technology, and the limited vehicle space occupancy rate can be effectively reduced on the premise of ensuring the safety and the usability of signal products.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. Based on the understanding, the above technical solutions substantially or otherwise contributing to the prior art may be embodied in the form of a software product, which may be stored in a computer-readable storage medium, such as ROM/RAM, magnetic disk, optical disk, etc., and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method according to the various embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (7)
1. An in-vehicle virtualization platform, comprising: n partition modules, a bus application framework module and a hardware platform module;
the bus application framework module is respectively in communication connection with each partition module, and the hardware platform module is in communication connection with the bus application framework module;
each partition module is stored with a service function application program;
the bus application framework module is used for transmitting the application data of the partition module to the hardware platform module so as to enable the hardware platform module to run, and N is a positive integer.
2. The in-vehicle virtualization platform of claim 1, wherein the bus application framework module comprises: the bus application framework sub-module and the bus communication equipment driving sub-module;
the bus application framework submodule is used for transmitting the application data of the partition module to other partition modules, and is also used for transmitting the application data of the partition module to the bus communication equipment driving submodule;
the bus communication equipment driver submodule is used for carrying out type optimization on the application data according to the interface type of the hardware platform module and transmitting the optimized application data to the hardware platform module.
3. The on-board virtualization platform of claim 1, wherein a second partition module of the N partition modules is functioning properly in the presence of non-secure code in a first partition module of the N partition modules.
4. The vehicle-mounted virtualization platform of claim 3, wherein the bus application framework module is specifically configured to:
and under the condition of receiving a plurality of application messages sent by the N partition modules, determining the safe communication protocol and the sending priority of each application message based on the safety integrity level corresponding to the plurality of application messages.
5. The vehicle-mounted virtualization platform of claim 1, wherein the N partition modules all run on the same board, and the service function applications stored in each partition module have different security integrity levels.
6. The in-vehicle virtualization platform of claim 1, wherein the partition module further runs a guest operating system therein.
7. The in-vehicle virtualization platform of claim 1, wherein the bus application framework module is configured to mask visibility of different fieldbus to business function applications in the partition module.
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| CN202210613630.0A CN115174611A (en) | 2022-05-31 | 2022-05-31 | Vehicle-mounted virtualization platform |
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| DE102011085463A1 (en) * | 2011-10-28 | 2013-05-02 | Mtu Friedrichshafen Gmbh | Control device for controlling drive system e.g. hybrid drive for rail vehicle, has control modules which are communicatively connected via internal and external data buses |
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