CN112764964A - Method and system for solving problem that FOTA cannot be refreshed after upgrading failure - Google Patents
Method and system for solving problem that FOTA cannot be refreshed after upgrading failure Download PDFInfo
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- CN112764964A CN112764964A CN202011478160.9A CN202011478160A CN112764964A CN 112764964 A CN112764964 A CN 112764964A CN 202011478160 A CN202011478160 A CN 202011478160A CN 112764964 A CN112764964 A CN 112764964A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/14—Error detection or correction of the data by redundancy in operation
- G06F11/1402—Saving, restoring, recovering or retrying
- G06F11/1415—Saving, restoring, recovering or retrying at system level
- G06F11/1433—Saving, restoring, recovering or retrying at system level during software upgrading
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/14—Error detection or correction of the data by redundancy in operation
- G06F11/1402—Saving, restoring, recovering or retrying
- G06F11/1446—Point-in-time backing up or restoration of persistent data
- G06F11/1448—Management of the data involved in backup or backup restore
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F8/00—Arrangements for software engineering
- G06F8/60—Software deployment
- G06F8/65—Updates
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F8/00—Arrangements for software engineering
- G06F8/70—Software maintenance or management
- G06F8/71—Version control; Configuration management
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Abstract
The invention relates to a method and a system for solving the problem that the FOTA cannot be refreshed after the FOTA upgrading failure, wherein the memory of an ECU is partitioned into a program operation area and a program storage area; the DS server sends the ECU refreshing task file to the TSP platform, the TSP platform analyzes the refreshing task file package, and after the analysis is completed, the refreshing task file package is sent to the T-BOX of the automobile end; the vehicle end T-BOX continues to analyze the refreshing task file package, and after the analysis is completed, an ECU refreshing flow is started; the ECU updates the downloaded software upgrading package to the program storage area, if the problems of poor network signals, wrong refreshing task file packages or wrong refreshing processes occur in the updating process, the refreshing task files in the program storage area cannot be transferred into the program operation area for updating within the preset time, the situation that after FOTA refreshing of the ECU fails, refreshing of the ECU cannot be executed again within a short time can be effectively prevented, the ECU software can keep the current software version, self functions are recovered, and normal use of a vehicle is guaranteed.
Description
Technical Field
The invention relates to the technical field of automobile electric control, in particular to a method for solving the problem that a FOTA cannot be re-brushed after upgrading failure
Background
In the prior art, when software of an automobile central control system is upgraded, a power failure and a disconnection occur, which may cause that the upgrading of the automobile central control system fails, and cause the conditions of crash, restart, AT non-continuity and the like of the automobile central control system, thereby greatly affecting the reliability of the automobile central control system, and simultaneously bringing great workload to after-sale maintenance of the automobile central control system.
More information about the above solution can also be found in the following documents:
the invention discloses a wireless Firmware (FOTA) upgrading method in the Chinese patent with the publication number of CN 106610840A, which comprises the steps of establishing a partition upgrading information identification table and setting a backup buffer area; the partition upgrading information identification table is used for storing upgrading state information of each partition; before the partition is upgraded, storing the system files in the partition to be upgraded into the backup buffer area; upgrading each partition needing to be upgraded in sequence according to the partition upgrading file in the FOTA upgrading packet; and when the partition upgrading fails, acquiring the partition information of the partition with the upgrading failure from the partition upgrading information identification table, acquiring the original partition system file stored in the backup buffer area according to the acquired partition information of the partition with the upgrading failure, and recovering the partition with the upgrading failure.
The invention patent of China with the publication number of CN 106610840A discloses an FOTA upgrading method, a wireless communication terminal and a storage medium. The method comprises the following steps: entering a standard mode, and executing a backup process on the recovery partition; upgrading the recovery partition; entering a recovery mode, sequentially judging whether each normal partition is a partition to be upgraded, and if so, executing a backup process on the normal partition; upgrading all normal partitions to be upgraded; the backup process comprises the following steps: writing the partition index information of the partition to be upgraded in the backup partition; and backing up the data of the partition to be upgraded to the backup partition. According to the embodiment of the invention, by means of backup of the partition data before upgrading and recovery of the data to the corresponding partition after next power-on of the interrupted upgrading, the memory chip can be verified to be normal when upgrading is carried out again after the upgrading fails, and the problem of difficult recovery of the wireless communication terminal caused by the upgrading failure is solved.
However, in the prior art, after the ECU performs the FOTA refresh error, the refresh operation cannot be performed again in a short time or the refresh operation cannot be successfully performed.
Disclosure of Invention
Therefore, a method and a system for solving the problem that the FOTA cannot be refreshed after the FOTA upgrading fails are needed to prevent the ECU software from keeping the current software version, recovering the functions of the ECU software and ensuring the normal use of the vehicle under the condition that the ECU cannot be refreshed again within a short time after the FOTA refreshing of the ECU fails.
In order to achieve the above object, the inventor provides a method for solving the problem that the FOTA cannot be refreshed after being upgraded successfully, which comprises the following steps:
partitioning the memory of the ECU into a program operation area and a program storage area;
the DS server sends the ECU refreshing task file to the TSP platform, the TSP platform analyzes the refreshing task file package, and after the analysis is completed, the refreshing task file package is sent to the T-BOX of the automobile end;
the vehicle end T-BOX continues to analyze the refreshing task file package, and after the analysis is completed, an ECU refreshing flow is started;
the ECU updates the downloaded software upgrading packet to a program storage area, and if the problems of poor network signals, wrong refreshing task file packets or wrong refreshing processes occur in the updating process, the refreshing task files in the program storage area cannot be transferred to a program operation area within preset time for updating;
if the problems of poor network signals, errors in the refreshing task file packet or errors in the refreshing process do not occur, after the refreshing task upgrading packet is completely updated into the program storage area, the refreshing task file in the program storage area is transferred into the program running area for updating until the updating is completed. The memory structure of the ECU is changed into a program operation area and a program storage area, so that the ECU with failed software flashing can be effectively prevented from losing functions, and the vehicle can still be normally used.
As a preferred method of the invention, if the problems of poor network signal, error of refreshing task file package or error of refreshing process occur, the ECU does not update the software version, keeps the current version, and deletes the refreshing file package. After the updating fails, the current version is still maintained, the operation problem of the vehicle ECU is effectively solved, the problem that the ECU cannot be started and operated directly due to the updating failure is effectively prevented, the updated file packet is deleted after the updating failure, and the storage space of the program storage area can be effectively saved.
As a preferred method of the invention, after deleting the refresh file packet, the diagnostic apparatus is accessed into the T-BOX of the automobile end for diagnosis, whether other error problems exist or whether the related data of the refresh file packet is deleted completely, and the ECU maintains the smooth link when the automobile is diagnosed and refreshed. And accessing the diagnostic apparatus, and rechecking whether the data of the refreshed file packet is completely deleted or not, so that on one hand, the storage space can be saved, and on the other hand, the mutual conflict with the subsequent refreshed file packet can be prevented.
As a preferred method of the invention, if the problems of poor network signal, error of the refreshing task file packet or error of the refreshing process do not occur, the refreshing task file packet is updated into the program storage area, whether the refreshing task file packet is completely updated into the program storage area is judged, and if the refreshing task file packet is completely updated into the program storage area, the updating is carried out by transferring into the program operation area. The updating task of the program storage area is judged, and the program operation area is switched to after the complete updating is judged, so that the updating of the program operation area is guaranteed.
As a preferred method of the invention, before shifting to the program operation area, the ECU performs trial operation on the refreshing task file in the program storage area, tests whether the problem of the error of the refreshing task file packet or the error of the refreshing process exists, and shifts to the program operation area for updating if the problem of the error of the refreshing task file packet or the error of the refreshing process does not occur. The test operation is firstly carried out, and further guarantee is provided for the updating and the successful operation of the program operation area.
As a preferred method of the invention, the ECU feeds back the ECU refreshing result to the automobile T-BOX in real time, the automobile T-BOX feeds back the ECU refreshing result and the log to the TSP platform, and the TSP platform feeds back the ECU refreshing result and the log to the DS server. And realizing real-time feedback of the refreshing result.
The invention further provides a system for solving the problem that the FOTA cannot be rewashed after the FOTA upgrade fails, which comprises an execution unit and a storage unit, wherein the execution unit is used for executing any one of the methods for solving the problem that the FOTA cannot be rewashed after the FOTA upgrade fails.
Different from the prior art, the technical scheme divides the memory of the ECU into a program operation area and a program storage area; the DS server sends the ECU refreshing task file to the TSP platform, the TSP platform analyzes the refreshing task file package, and after the analysis is completed, the refreshing task file package is sent to the T-BOX of the automobile end; the vehicle end T-BOX continues to analyze the refreshing task file package, and after the analysis is completed, an ECU refreshing flow is started; the ECU updates the downloaded software upgrading package to the program storage area, if the problems of poor network signals, wrong refreshing task file packages or wrong refreshing processes occur in the updating process, the refreshing task files in the program storage area cannot be transferred into the program operation area for updating within the preset time, the situation that after FOTA refreshing of the ECU fails, refreshing of the ECU cannot be executed again within a short time can be effectively prevented, the ECU software can keep the current software version, self functions are recovered, and normal use of a vehicle is guaranteed.
Drawings
FIG. 1 is a flowchart illustrating the FOTA upgrade of a vehicle ECU according to an embodiment;
FIG. 2 is a flowchart illustrating an upgrade process for solving the problem of failure to re-refresh after an FOTA upgrade is failed according to an embodiment;
FIG. 3 is a flowchart illustrating steps of a method for solving the problem of failure of a FOTA upgrade in accordance with an exemplary embodiment.
Description of reference numerals:
101. a program storage area is provided in the memory area,
102. a program running area is arranged in the computer,
103、ECU，
104、T-BOX，
105. a TSP platform having a plurality of TSP platforms,
106. and a DS server.
Detailed Description
To explain technical contents, structural features, and objects and effects of the technical solutions in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.
Referring to fig. 1 to 3, the present embodiment provides a method for solving the problem that the FOTA cannot be refreshed after the FOTA upgrade fails, specifically, when a software function upgrade requirement exists in an ECU on a vehicle or some software-related BUGs need to be repaired, the ECU needs to be upgraded at this time, the upgraded software is sent to the DS server, the DS server makes an ECU upgrade update compression package file according to a specific protocol, and the ECU upgrade update compression package file mainly includes an ECU upgrade flow file, an ECU software upgrade package, upgrade-related requirement information, related security verification information, and the like. Sending the upgrade compressed packet file to a TSP platform, analyzing and verifying the upgrade compressed packet file by the TSP platform, sending the analyzed content to a vehicle-end remote service function module, namely T-BOX after the T-BOX receives the relevant file, feeding back the file receiving result and analyzing the file for the second time, sending an upgrade starting instruction to the T-BOX by the TSP platform when the appointed time is up, commanding the vehicle to be electrified by the T-BOX, completely electrifying and initializing the ECU of the whole vehicle, starting a refresh engine by the T-BOX according to a refresh flow, sending a refresh instruction to the upgrade ECU, formally starting the ECU refresh flow, obtaining the ECU refresh result by the T-BOX after the upgrade is completed, if the upgrade result is successful, feeding back the refresh result to the TSP platform by the T-BOX, sending the result to a DS server after the TSP platform obtains the result, and filing the task result, and if the upgrading result is failure, feeding back the refreshing result and the refreshing log to the TSP platform, and trying upgrading again.
The embodiment provides a method for solving the problem that a FOTA cannot be refreshed after upgrading failure, which comprises the following steps:
s101, partitioning a memory of the ECU 103 into a program operation area 101 and a program storage area 102;
s102, the DS server 106 sends the ECU refreshing task file to the TSP platform 105, the TSP platform 105 analyzes the refreshing task file package, and after the analysis is completed, the refreshing task file package is sent to the T-BOX of the automobile end;
s103, continuously analyzing the refreshing task file package by the automobile end T-BOX 104, and starting an ECU refreshing process after the analysis is finished;
the ECU updates the downloaded software upgrading packet to a program storage area, and if the problems of poor network signals, wrong refreshing task file packets or wrong refreshing processes occur in the updating process, the refreshing task files in the program storage area cannot be transferred to a program operation area within preset time for updating;
s1041, if the problems of poor network signals, wrong refreshing task file packages or wrong refreshing process occur, the ECU does not update the software version, keeps the current version, and deletes the refreshing file packages. After the updating fails, the current version is still maintained, the operation problem of the vehicle ECU is effectively solved, the problem that the ECU cannot be started and operated directly due to the updating failure is effectively prevented, the updated file packet is deleted after the updating failure, and the storage space of the program storage area can be effectively saved.
Furthermore, after the refresh file packet is deleted, the diagnostic instrument is accessed into the T-BOX of the automobile end for diagnosis, whether other error problems exist or whether the related data of the refresh file packet is completely deleted is diagnosed, and the ECU maintains the smooth link when the automobile is diagnosed and refreshed. And accessing the diagnostic apparatus, and rechecking whether the data of the refreshed file packet is completely deleted or not, so that on one hand, the storage space can be saved, and on the other hand, the mutual conflict with the subsequent refreshed file packet can be prevented.
S1042, if the problems of poor network signals, errors in the refreshing task file packet or errors in the refreshing process do not occur, after the refreshing task upgrading packet is completely updated into the program storage area, the refreshing task file in the program storage area is transferred into the program running area to be updated until the updating is completed.
Further, if the problems of poor network signals, errors in the refreshing task file package or errors in the refreshing process do not occur, the refreshing task file package is updated into the program storage area, whether the refreshing task file package is completely updated into the program storage area or not is judged, and if the refreshing task file package is completely updated into the program storage area, the program operation area is switched to for updating. The updating task of the program storage area is judged, and the program operation area is switched to after the complete updating is judged, so that the updating of the program operation area is guaranteed.
Furthermore, before the program operation area is switched to, the ECU performs trial operation on the refreshing task file in the program storage area, tests whether the problem of the error of the refreshing task file packet or the error of the refreshing process exists, and switches to the program operation area for updating if the problem of the error of the refreshing task file packet or the error of the refreshing process does not exist. The test operation is firstly carried out, and further guarantee is provided for the updating and the successful operation of the program operation area.
Further, the ECU feeds back the ECU refreshing result to the automobile T-BOX in real time, the automobile T-BOX feeds back the ECU refreshing result and the log to the TSP platform, and the TSP platform feeds back the ECU refreshing result and the log to the DS server. And realizing real-time feedback of the refreshing result.
The invention further provides a system for solving the problem that the FOTA cannot be rewashed after the FOTA upgrade fails, which comprises an execution unit and a storage unit, wherein the execution unit is used for executing any one of the methods for solving the problem that the FOTA cannot be rewashed after the FOTA upgrade fails.
The ECU memory structure is divided into a program operation area and a program storage area. The DS server sends the ECU refreshing task file to the TSP platform, the TSP platform sends the refreshing task file to the vehicle end T-BOX after analysis is completed, the ECU refreshing process is started after the T-BOX is successfully analyzed, the ECU updates the latest downloaded software upgrading packet to the program storage area, if the latest downloaded software upgrading packet is successfully updated to the program operation area, otherwise, the program operation area is not updated, at the moment, if the network signal is not good or other problems are generated, the file packet is refreshed or the refreshing process is wrong, the ECU can not be refreshed again in a short time, the ECU with the failed software refreshing can not lose the self function at the moment, and the vehicle can be normally used.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrases "comprising … …" or "comprising … …" does not exclude the presence of additional elements in a process, method, article, or terminal that comprises the element. Further, herein, "greater than," "less than," "more than," and the like are understood to exclude the present numbers; the terms "above", "below", "within" and the like are to be understood as including the number.
As will be appreciated by one skilled in the art, the above-described embodiments may be provided as a method, apparatus, or computer program product. These embodiments may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. All or part of the steps in the methods according to the embodiments may be implemented by a program instructing associated hardware, where the program may be stored in a storage medium readable by a computer device and used to execute all or part of the steps in the methods according to the embodiments. The computer devices, including but not limited to: personal computers, servers, general-purpose computers, special-purpose computers, network devices, embedded devices, programmable devices, intelligent mobile terminals, intelligent home devices, wearable intelligent devices, vehicle-mounted intelligent devices, and the like; the storage medium includes but is not limited to: RAM, ROM, magnetic disk, magnetic tape, optical disk, flash memory, U disk, removable hard disk, memory card, memory stick, network server storage, network cloud storage, etc.
The various embodiments described above are described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a computer apparatus to produce a machine, such that the instructions, which execute via the processor of the computer 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 device 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 apparatus to cause a series of operational steps to be performed on the computer apparatus to produce a computer implemented process such that the instructions which execute on the computer apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It should be noted that, although the above embodiments have been described herein, the invention is not limited thereto. Therefore, based on the innovative concepts of the present invention, the technical solutions of the present invention can be directly or indirectly applied to other related technical fields by making changes and modifications to the embodiments described herein, or by using equivalent structures or equivalent processes performed in the content of the present specification and the attached drawings, which are included in the scope of the present invention.
Claims (7)
1. A method for solving the problem that the FOTA cannot be refreshed after the FOTA upgrading failure is characterized by comprising the following steps:
partitioning the memory of the ECU into a program operation area and a program storage area;
the DS server sends the ECU refreshing task file to the TSP platform, the TSP platform analyzes the refreshing task file package, and after the analysis is completed, the refreshing task file package is sent to the T-BOX of the automobile end;
the vehicle end T-BOX continues to analyze the refreshing task file package, and after the analysis is completed, an ECU refreshing flow is started;
the ECU updates the downloaded software upgrading packet to a program storage area, and if the problems of poor network signals, wrong refreshing task file packets or wrong refreshing processes occur in the updating process, the refreshing task files in the program storage area cannot be transferred to a program operation area within preset time for updating;
if the problems of poor network signals, errors in the refreshing task file packet or errors in the refreshing process do not occur, after the refreshing task upgrading packet is completely updated into the program storage area, the refreshing task file in the program storage area is transferred into the program running area for updating until the updating is completed.
2. The method for solving the problem of failure of recalling after FOTA upgrade failure as claimed in claim 1, wherein: if the problems of poor network signals, wrong refreshing task file packages or wrong refreshing processes occur, the ECU does not update the software version, keeps the current version and deletes the refreshing file packages.
3. The method for solving the problem of failure of recalling after FOTA upgrade as claimed in claim 2, wherein: after the refreshing file packet is deleted, the diagnostic instrument is accessed into the T-BOX of the automobile end to diagnose whether other error problems exist or whether the related data of the refreshing file packet is completely deleted, and the ECU maintains the smooth link when the automobile is diagnosed and refreshed.
4. The method for solving the problem of failure of recalling after FOTA upgrade failure as claimed in claim 1, wherein: if the problems of poor network signals, errors in the refreshing task file packet or errors in the refreshing process do not occur, the refreshing task file packet is updated into the program storage area, whether the refreshing task file packet is completely updated into the program storage area or not is judged, and if the refreshing task file packet is completely updated into the program storage area, the program operation area is switched to for updating.
5. The method of claim 4, wherein the problem that the FOTA cannot be re-brushed after the FOTA upgrade fails is solved by: before the program operation area is switched into, the ECU performs trial operation on the refreshing task file in the program storage area, tests whether the problem of the refreshing task file packet error or the refreshing flow error exists, and switches into the program operation area to update if the problem of the refreshing task file packet error or the refreshing flow error does not occur.
6. The method for solving the problem of failure of recalling after FOTA upgrade failure as claimed in claim 1, wherein: and the ECU feeds the ECU refreshing result back to the automobile T-BOX in real time, the automobile T-BOX feeds the ECU refreshing result and the log back to the TSP platform, and the TSP platform feeds the ECU refreshing result and the log back to the DS server.
7. A system for solving the problem of incapability of recalling after failure of FOTA upgrade, which is characterized by comprising an execution unit and a storage unit, wherein the execution unit is used for executing the method for solving the incapability of recalling after failure of FOTA upgrade as claimed in any one of claims 1-6.
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