CN117785045A - Autosar-based controller ASW data storage method and device - Google Patents
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Abstract
The invention discloses an automatic sar-based controller ASW data storage method and device, and relates to the technical field of vehicle data storage. When the data is required to be stored, the method and the device firstly judge whether the spare nodes exist in the storage queue of the NVM storage stack, if the spare nodes exist in the storage queue, the storage request of the data Block can be written into the storage queue after the WC calls the Write Block function corresponding to the data Block, so that the data storage failure caused by the fact that the storage request cannot be written into the storage queue can be avoided, and the controller ASW data can be ensured to be successfully stored.
Description
Technical Field
The invention relates to the technical field of vehicle data storage, in particular to an automatic sar-based controller ASW data storage method and device.
Background
In autosar (Automotive Open System Architecture, automobile open system architecture), data in a data block that needs to be stored by the controller ASW (Application Software, application software layer) may be written into a corresponding NV block, but in some cases, a storage request of the data in the data block may not enter a storage queue, so that data storage in the data block fails, which affects implementation of a controller software function, and thus affects user experience. Therefore, to ensure the implementation of the controller software function, the problem of how to ensure the successful storage of the controller ASW data needs to be considered.
Disclosure of Invention
The invention solves the technical problem of how to ensure successful storage of the ASW data of the controller by providing the ASW data storage method and the ASW data storage device of the controller based on autosar.
In one aspect, the present invention provides the following technical solutions:
an autosar-based controller ASW data storage method comprises the following steps:
judging whether the data in the data block of the controller ASW changes or not;
if the data in the data block changes, judging whether a spare node exists in a storage queue of the NVM storage stack;
and if the storage queue has spare nodes, calling a Write Block function in a Client-Service interface corresponding to the data Block to Write the data in the data Block into an NV Block corresponding to the data Block.
Optionally, if there are spare nodes in the storage queue, calling a Write Block function in a Client-Service interface corresponding to the data Block to Write the data in the data Block into an NV Block corresponding to the data Block, and then further including:
acquiring a calling result returned by the Write Block function;
and if the calling result is that the calling fails, repeatedly calling the Write Block function until the calling result is that the calling is successful.
Optionally, after the obtaining the call result returned by the Write Block function, the method further includes:
and if the calling result is that the calling is successful, judging whether the data in the NV block corresponding to the dequeue element of the storage queue is successfully stored or not.
Optionally, the determining whether the data in the data block of the controller ASW changes includes:
and judging whether the data in the data block changes or not by taking the integral multiple of the running period of the SWC in the ASW as a judging period.
Optionally, if there are spare nodes in the storage queue, calling a Write Block function in a Client-Service interface corresponding to the data Block to Write the data in the data Block into an NV Block corresponding to the data Block, and then further including:
if the Write Block functions corresponding to a plurality of data blocks are called at the same time, acquiring the priority of each data Block;
and preferentially writing the storage request corresponding to the data block with the high priority into the storage queue.
Optionally, before determining whether the data in the data block of the controller ASW changes, the method further includes:
and distributing a corresponding RAM Block for each NV Block in the RAM, and configuring the Client-Service interface for each RAM Block.
On the other hand, the invention also provides the following technical scheme:
an autosar-based controller ASW data storage device, comprising:
the judging module is used for judging whether the data in the data block of the controller ASW changes or not;
if the data in the data block changes, judging whether a spare node exists in a storage queue of the NVM storage stack;
and the calling module is used for calling a Write Block function in the Client-Service interface corresponding to the data Block if the free nodes exist in the storage queue so as to Write the data in the data Block into the NV Block corresponding to the data Block.
Optionally, the controller ASW data storage device further includes:
the acquisition module is used for acquiring a calling result returned by the Write Block function;
and the calling module is further configured to repeatedly call the Write Block function if the calling result is that the calling fails, until the calling result is that the calling is successful.
Optionally, the judging module is further configured to judge whether the data in the NV block corresponding to the dequeue element of the storage queue is successfully stored if the call result is that the call is successful.
Optionally, the judging module is further configured to judge whether the data in the data block changes by using an integer multiple of an operation period of the SWC in the ASW as a judging period.
Optionally, the controller ASW data storage device further includes:
the acquisition module is used for acquiring the priority of each data Block if the Write Block functions corresponding to a plurality of data blocks are called at the same time;
and the writing module is used for preferentially writing the storage request corresponding to the data block with the high priority into the storage queue.
Optionally, the controller ASW data storage device further includes:
and the configuration module is used for distributing a corresponding RAM Block for each NV Block in the RAM and configuring the Client-Service interface for each RAM Block.
On the other hand, the invention also provides the following technical scheme:
an electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing any of the autosar-based controller ASW data storage methods described above when executing the computer program.
On the other hand, the invention also provides the following technical scheme:
a computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements any of the autosar-based controller ASW data storage methods described above.
The one or more technical schemes provided by the invention have at least the following technical effects or advantages:
when the data is required to be stored, the method and the device firstly judge whether the spare nodes exist in the storage queue of the NVM storage stack, if the spare nodes exist in the storage queue, the storage request of the data Block can be written into the storage queue after the WC calls the Write Block function corresponding to the data Block, so that the data storage failure caused by the fact that the storage request cannot be written into the storage queue can be avoided, and the controller ASW data can be ensured to be successfully stored.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments 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 may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of an automatic sar-based controller ASW data storage method according to an embodiment of the present invention;
fig. 2 is a schematic diagram of an automatic sar-based controller ASW data storage device according to an embodiment of the present invention.
Detailed Description
The embodiment of the invention solves the technical problem of how to ensure successful storage of the ASW data of the controller by providing the ASW data storage method and the ASW data storage device of the controller based on autosar.
In order to better understand the technical scheme of the present invention, the following detailed description will refer to the accompanying drawings and specific embodiments.
The autosar architecture is, in order from top to bottom, an application Software layer (ASW), a real-Time Environment layer (RTE), and a base Software layer (BSW). Wherein the ASW is composed of a plurality of SWCs (Software Component, software components) that interact with each other through ports. The BSW provides an NVM (NVRAM Manager) for managing data storage, the NVM storage stack Service layer provides a Client-Service interface for implementing a data storage request for each data Block required to be stored by the ASW, when the SWC in the ASW needs to store data, the SWC in the Client-Service interface can call a Write Block function in the Client-Service interface to store data, after the Write Block function is called, the storage request of the data Block can be written into a storage queue of the NVM storage stack, and the NVM sequentially writes the data in the data Block corresponding to the storage request into the corresponding NV Block according to the sequence of the storage request in the storage queue.
Based on the data storage principle, if the NVM storage stack storage queue has no free node, the storage request of the data block cannot be written into the storage queue, so that the NVM cannot process the data block to be stored, and the data storage failure may be caused.
As shown in fig. 1, the automatic sar-based controller ASW data storage method according to the embodiment of the present invention includes:
step S1, judging whether data in a data block of a controller ASW changes or not;
step S2, if the data in the data block changes, judging whether spare nodes exist in a storage queue of the NVM storage stack;
and step S3, if the free nodes exist in the storage queue, calling a Write Block function in a Client-Service interface corresponding to the data Block to Write the data in the data Block into an NV Block corresponding to the data Block.
Before step S1, the controller ASW data storage method further includes: the BSW configures NV blocks for ASW data to be stored, corresponding RAM blocks are allocated for each NV Block in the RAM, and a Client-Service interface is configured for each RAM Block. The data required to be stored by the vehicle central controller ASW include data related to various functions such as whole vehicle control, thermal management control and vehicle body electronic control, more important functions can occupy one or even two NV blocks independently, less important functions can occupy a slightly larger NV block together, several related functions can occupy one NV block together, for example, vehicle VIN codes can be stored in one NV block independently to avoid interference of other data, and bluetooth key SK codes can be stored in two NV blocks for backup. The data to be stored by the SWC exists in the form of individual data blocks, and the data blocks can have priority, and the more important data, the higher the priority of the data blocks where the data blocks are located. After the SWC calls a Write Block function corresponding to the data Block, the NVM will Write the data in the data Block into the RAM Block for temporary storage, write the storage request of the data Block into the storage queue, and Write the data in the RAM Block into the corresponding NV Block when the storage request is processed.
In step S2, if the data in a certain data block changes, the representative data value changes, and the change is stored in the NV block. In step S3, if there are spare nodes in the storage queue, after the SWC calls the Write Block function corresponding to the data Block, the storage request of the data Block may be written into the storage queue, and then the storage request may be processed to complete data storage. Therefore, when the controller ASW data storage method in the embodiment of the invention needs to store data, whether the memory queue of the NVM memory stack has spare nodes or not is judged first, if the memory queue has spare nodes, the memory request of the data Block can be written into the memory queue after the Write Block function corresponding to the data Block is called by the SWC, so that the data storage failure caused by the fact that the memory request cannot be written into the memory queue can be avoided, and the controller ASW data can be ensured to be successfully stored.
In general, the Write Block function is basically called successfully, and successful storage can be basically realized, but occasionally, the Write Block function call fails. In order to improve the success rate of data storage, after step S3, the controller ASW data storage method may further include: acquiring a calling result returned by a Write Block function; if the calling result is that the calling fails, the Write Block function is repeatedly called until the calling result is that the calling is successful. Therefore, after the Write Block function is called once, the Write Block function can be repeatedly called until the call is successful, and data storage failure caused by the failure of calling the Write Block function once is avoided. Of course, to avoid too high a frequency of calling the Write Block function, a call may be called again after a failure of one call, for example, 500 ms.
In general, after a Write Block function corresponding to a certain data Block is called, after a storage request of the data Block is processed, a storage state of data in an NV Block corresponding to an dequeue element of a storage queue needs to be obtained, which includes erasing, writing completion, writing failure, and the like, so as to grasp a data storage process. Therefore, after obtaining the call result returned by the Write Block function, the controller ASW data storage method further includes: if the calling result is that the calling is successful, judging whether the data in the NV block corresponding to the dequeue element of the storage queue is successfully stored or not. If the storage is successful, the storage is ended, and the storage failure needs to be stored again.
Because the same data block includes a plurality of data, the data may change simultaneously and continuously, if the judging period for judging whether the data in the data block changes is too short, frequent calling of the Client-Service interface corresponding to the data block may result in frequent occupation of the resources of the storage queue. To avoid frequent occupation of the resources of the storage queue, step S1 may include: and judging whether the data in the data block changes or not by taking the integral multiple of the running period of the SWC in the ASW as a judging period. For example, the operation period of the SWC is 20ms, the judging period may be 100ms, and if the data of the same data block changes simultaneously and continuously between the two judging periods, whether the data in the data block changes or not will not be judged, and the corresponding Client-Service interface will not be continuously called.
As mentioned above, a priority may be set for each data block, so that important data is preferentially stored, and after step S3, the controller ASW data storage method may further include: if the Write Block functions corresponding to the plurality of data blocks are called at the same time, the priority of each data Block is obtained; and preferentially writing the storage request corresponding to the data block with the high priority into the storage queue.
As shown in fig. 2, an embodiment of the present invention further provides an autosar-based controller ASW data storage device, including:
the judging module is used for judging whether the data in the data block of the controller ASW changes or not;
if the data in the data block changes, judging whether a spare node exists in a storage queue of the NVM storage stack;
and the calling module is used for calling a Write Block function in the Client-Service interface corresponding to the data Block if the free nodes exist in the storage queue so as to Write the data in the data Block into the NV Block corresponding to the data Block.
The controller ASW data storage device further comprises: the configuration module is used for configuring NV blocks for ASW data to be stored, distributing corresponding RAM blocks for each NV Block in the RAM, and configuring a Client-Service interface for each RAM Block. The judging module and the configuring module both belong to BSW. The data required to be stored by the vehicle central controller ASW include data related to various functions such as whole vehicle control, thermal management control and vehicle body electronic control, more important functions can occupy one or even two NV blocks independently, less important functions can occupy a slightly larger NV block together, several related functions can occupy one NV block together, for example, vehicle VIN codes can be stored in one NV block independently to avoid interference of other data, and bluetooth key SK codes can be stored in two NV blocks for backup. The data to be stored by the SWC exists in the form of individual data blocks, and the data blocks can have priority, and the more important data, the higher the priority of the data blocks where the data blocks are located. After the SWC calls a Write Block function corresponding to the data Block, the NVM will Write the data in the data Block into the RAM Block for temporary storage, write the storage request of the data Block into the storage queue, and Write the data in the RAM Block into the corresponding NV Block when the storage request is processed.
If the judging module judges that the data in a certain data block changes, the representative data value changes and needs to be stored in the NV blcok. The calling module belongs to the SWC. If there are spare nodes in the storage queue, after the SWC calls the Write Block function corresponding to the data Block, the storage request of the data Block can be written into the storage queue, and then the storage request can be processed to complete data storage. Therefore, when the controller ASW data storage device needs to store data, whether the storage queue of the NVM storage stack has spare nodes or not is judged, if the storage queue has spare nodes, a storage request of the data Block can be written into the storage queue after the Write Block function corresponding to the data Block is called by the SWC, so that the data storage failure caused by the fact that the storage request cannot be written into the storage queue can be avoided, and the controller ASW data can be stored successfully.
In general, the Write Block function is basically called successfully, and successful storage can be basically realized, but occasionally, the Write Block function call fails. In order to improve the success rate of data storage, the controller ASW data storage method may further include: the acquisition module is used for acquiring a calling result returned by the Write Block function; and the calling module is also used for repeatedly calling the Write Block function if the calling result is that the calling is failed, until the calling result is that the calling is successful. Therefore, after the Write Block function is called once, the Write Block function can be repeatedly called until the call is successful, and data storage failure caused by the failure of calling the Write Block function once is avoided. Of course, to avoid too high a frequency of calling the Write Block function, a call may be called again after a failure of one call, for example, 500 ms.
In general, after a Write Block function corresponding to a certain data Block is called, after a storage request of the data Block is processed, a storage state of data in an NV Block corresponding to an dequeue element of a storage queue needs to be obtained, which includes erasing, writing completion, writing failure, and the like, so as to grasp a data storage process. Therefore, after the acquisition module acquires the call result returned by the Write Block function, the judgment module can also be used for judging whether the data in the NV Block corresponding to the dequeue element of the storage queue is successfully stored if the call result is that the call is successful. If the storage is successful, the storage is ended, and the storage failure needs to be stored again.
Because the same data block includes a plurality of data, the data may change simultaneously and continuously, if the judging period for judging whether the data in the data block changes is too short, frequent calling of the Client-Service interface corresponding to the data block may result in frequent occupation of the resources of the storage queue. To avoid frequent occupation of the resources of the storage queue, the determining module may be further configured to: and judging whether the data in the data block changes or not by taking the integral multiple of the running period of the SWC in the ASW as a judging period. For example, the operation period of the SWC is 20ms, the judging period may be 100ms, and if the data of the same data block changes simultaneously and continuously between the two judging periods, whether the data in the data block changes or not will not be judged, and the corresponding Client-Service interface will not be continuously called.
In the above description, a priority may be set for each data Block, so that important data is stored preferentially, and the obtaining module may be further configured to obtain the priority of each data Block if Write Block functions corresponding to a plurality of data blocks are called simultaneously; the controller ASW data storage may further include a writing module, configured to write the storage request corresponding to the data block with the high priority into the storage queue with priority.
Based on the same inventive concept as the autosar-based controller ASW data storage method described above, an embodiment of the present invention further provides an electronic device, including a memory, a processor, and a computer program stored on the memory and executable on the processor, where the processor implements the steps of any one of the autosar-based controller ASW data storage methods described above when executing the computer program.
Where a bus architecture (represented by a bus), a bus may comprise any number of interconnected buses and bridges, linking together various circuits, including one or more processors, as represented by a processor, and a memory, as represented by a memory. The bus may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., as are well known in the art and, therefore, will not be further described herein. The bus interface provides an interface between the bus and the receiver and transmitter. The receiver and the transmitter may be the same element, i.e. a transceiver, providing a unit for communicating with various other apparatus over a transmission medium. The processor is responsible for managing the bus and general processing, while the memory may be used to store data used by the processor in performing operations.
Since the electronic device described in the embodiment of the present invention is an electronic device used to implement the auto sar-based controller ASW data storage method in the embodiment of the present invention, based on the auto sar-based controller ASW data storage method described in the embodiment of the present invention, those skilled in the art can understand the specific implementation of the electronic device and various modifications thereof, so how to implement the method in the embodiment of the present invention in the electronic device will not be described in detail herein. Any electronic device used by those skilled in the art to implement the automatic sar-based controller ASW data storage method according to the embodiments of the present invention falls within the scope of the present invention.
Based on the same inventive concept as the above-described autosar-based controller ASW data storage method, the present invention also provides a computer-readable storage medium having a computer program stored thereon, which when executed by a processor, implements any of the above-described autosar-based controller ASW data storage methods.
It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (10)
1. An autosar-based controller ASW data storage method, comprising:
judging whether the data in the data block of the controller ASW changes or not;
if the data in the data block changes, judging whether a spare node exists in a storage queue of the NVM storage stack;
and if the storage queue has spare nodes, calling a Write Block function in a Client-Service interface corresponding to the data Block to Write the data in the data Block into an NV Block corresponding to the data Block.
2. The method for storing controller ASW data based on autosar according to claim 1, wherein if there are free nodes in the storage queue, calling a Write Block function in a Client-Service interface corresponding to the data Block to Write the data in the data Block into an NV Block corresponding to the data Block, further comprising:
acquiring a calling result returned by the Write Block function;
and if the calling result is that the calling fails, repeatedly calling the Write Block function until the calling result is that the calling is successful.
3. The automatic sar-based controller ASW data storage method of claim 1, wherein after the call result returned by the Write Block function is obtained, further comprising:
and if the calling result is that the calling is successful, judging whether the data in the NV block corresponding to the dequeue element of the storage queue is successfully stored or not.
4. The autosar-based controller ASW data storage method of claim 1, wherein the determining whether the data in the data block of the controller ASW has changed comprises:
and judging whether the data in the data block changes or not by taking the integral multiple of the running period of the SWC in the ASW as a judging period.
5. The method for storing controller ASW data based on autosar according to claim 1, wherein if there are free nodes in the storage queue, calling a Write Block function in a Client-Service interface corresponding to the data Block to Write the data in the data Block into an NV Block corresponding to the data Block, further comprising:
if the Write Block functions corresponding to a plurality of data blocks are called at the same time, acquiring the priority of each data Block;
and preferentially writing the storage request corresponding to the data block with the high priority into the storage queue.
6. The autosar-based controller ASW data storage method of claim 1, wherein the determining whether the data in the data block of the controller ASW has changed further comprises:
and distributing a corresponding RAM Block for each NV Block in the RAM, and configuring the Client-Service interface for each RAM Block.
7. An autosar-based controller ASW data storage device, comprising:
the judging module is used for judging whether the data in the data block of the controller ASW changes or not;
if the data in the data block changes, judging whether a spare node exists in a storage queue of the NVM storage stack;
and the calling module is used for calling a Write Block function in the Client-Service interface corresponding to the data Block if the free nodes exist in the storage queue so as to Write the data in the data Block into the NV Block corresponding to the data Block.
8. The autosar-based controller ASW data storage device of claim 7, further comprising:
the acquisition module is used for acquiring the priority of each data Block if the Write Block functions corresponding to a plurality of data blocks are called at the same time;
and the writing module is used for preferentially writing the storage request corresponding to the data block with the high priority into the storage queue.
9. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the autosar-based controller ASW data storage method of any one of claims 1-6 when the computer program is executed.
10. A computer readable storage medium, characterized in that the computer readable storage medium has stored thereon a computer program which, when executed by a processor, implements the autosar-based controller ASW data storage method of any of claims 1-6.
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