CN105930236A - Application program version returning method based on BMS Bootloaderupgrade - Google Patents
Application program version returning method based on BMS Bootloaderupgrade Download PDFInfo
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- CN105930236A CN105930236A CN201610556569.5A CN201610556569A CN105930236A CN 105930236 A CN105930236 A CN 105930236A CN 201610556569 A CN201610556569 A CN 201610556569A CN 105930236 A CN105930236 A CN 105930236A
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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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Abstract
The invention discloses an application program version returning method based on BMS Bootloaderupgrade. The method comprises the following steps of (1) entering a working state when a BMS module is power on, reporting a current software version number to the BMS module by a host computer, and checking an update bit on FLASH; (2) when a system receives an update command sent by a control module, carrying out software update; (3) when the update is unsuccessful, returning to original version application program running, or returning to required history version application program running according to the actual condition. According to the application program version returning method based on BMS Bootloaderupgrade provided by the invention, two backup program storage areas are arranged, and an exception handling mechanism is adopted, so that the update of the BMS system has stronger self-recovery capability, the reliability of the software update process is greatly improved, the phenomenon of system boot failureoccurred after system update can be effectively prevented particularly, and higher practical value is achieved.
Description
Technical field
The invention belongs to BMS system updating technology field, more particularly, to one based on BMS
The application version backing method of Bootloader upgrading.
Background technology
Electric automobile internal structure is complicated, and high-tension battery group is carried in inside, local with certain risk,
So after sale personnel upgrade BMS system application mode be mainly by the communication party such as serial ports or CAN
Formula carries out remote online upgrading.Escalation process can cause upgrading unsuccessfully due to reasons such as communication failures, original
Old version program lose, thus need repeat update application program, have impact on electric automobile properly functioning.
Traditional method that BMS system carries out application upgrade is mainly to utilize bottom-boot program
Bootloader is by communication mode upgrade applications such as CAN, and the method does not accounts for can in renewal process
The situation of the interference that can run into, if there is upgrading unsuccessfully, the original application program of system will be lost, for
This, personnel's solution after sale can only be by repeatedly upgrading, if there is network failure, it is likely that
All can not make the original application program of BMS system roll-back, if system needs to run a certain old version,
Personnel after sale also need to give original old version application program for change and again upgrade, thus just can affect electric automobile
Often run, and operate and more bother, time-consumingly.
Existing electric automobile BMS application program is according to without producer's technology requirement, and application version is the most also
Different, when personnel are to electric automobile on-site maintenance after sale, if carrying out escalation process goes out to version
Now upgrading unsuccessful, system then needs again to upgrade, if there is network failure or according to practical situation need
The a certain version of history to be return back to, then can cause automobile quickly to put into effect.
Summary of the invention
For the defect of prior art, it is an object of the invention to provide a kind of based on BMS Bootloader liter
The application version backing method of level, it is intended to solve to utilize the failure of communication interface remote upgrade in prior art
Time, system cannot run the problem of application program, and BMS system can not return back to required as required
The problem of old version application program.
The invention provides a kind of application version backing method based on BMS Bootloader upgrading, bag
Include following step:
(1) entering duty after BMS module powers on, host computer is current soft to the report of BMS module
Part version number, and check the renewal position on FLASH；
(2) after system receives the renewal instruction that control module is sent, software upgrading is carried out；
(3) when updating unsuccessful, it return back to original version application program and run, or according to practical situation
It return back to required old version application version run.
The present invention, by arranging two stand-by program memory blocks, uses exception handling, makes BMS system
Update the stronger self-recovery ability that is provided with, the bigger reliability promoting software upgrading process, especially can
Enough it is effectively prevented the situation that the system start-up occurred after system update is failed, there is higher practical value.
Further, described software upgrading step particularly as follows:
S21: judge to update whether position is 0, the most then enter step S22；If it is not, position then will be updated
It is 0；
S22: report version number to the back-end, and receive new APP file；
S23: close and interrupt and read startup point value；
S24: when starting point value and being 0, new APP file is write memory block 1；When starting point value and being 1,
New APP file is write memory block 2；When starting point value and being other value, new APP file is simultaneously written
Memory block 0 and 1；And proceed to step S25；Wherein, memory block 0 refers to initial version memory block, memory block
1 refers to front version memory block, and memory block 2 refers to current version memory block.
S25: verify, amendment starts point value, and it is to restart system after 1 that juxtaposition updates position.
Further, carry out in software upgrading in step (2), use CAN protocol to receive host computer
The new APP file sent.
Further, after new APP file download, before first judging, version field is on a flash
Position, recalls the read/write function of FLASH by version memory block before the write of new APP file；After writing
Position 1 will be updated, and change startup point.
Further, if the current program version run is initial release, then by new APP file simultaneously
Write the first two memory block.
Further, FLASH includes Bootloader memory block, 3 APP file storage area and parameter
Configuring area；Wherein, 3 APP file storage area are respectively as follows: initial version storage from low to high according to address
District, front version memory block and current version memory block；Described initial version memory block is run for storage system
Time initial program file；Described front version storage is used for depositing last revision APP file；Described current version
Local area storage area is for depositing up-to-date APP file to be started；It is solid that parameter configuration district is used for depositing needs
Need the startup point used during the more new procedures changed and update the system configuration parameters such as position.
Wherein, the described point that starts is used for indicating which memory block loading APP file bootloader needs from；
The state that described renewal position carries out software upgrading for indicating system.
By the above technical scheme that the present invention is contemplated, compared with prior art, owing to the present invention proposes electricity
The bootloader of electrical automobile BMS can preserve old version information in upgrade applications, and such benefit is
For personnel after sale, during on-site maintenance electric automobile BMS, if it is unsuccessful to upgrade, system can return back to
Original version application program runs, or return back to required old version application program version according to practical situation
This operation.This strategy can guarantee that electric automobile BMS system can be still up in failed situation of upgrading,
Automobile remains able to quick normal operation input.
Accompanying drawing explanation
Fig. 1 is the structural representation of traditional flash memorizer in prior art；
Fig. 2 is the structural representation of the band version rollback function flash storage that the embodiment of the present invention provides；
Fig. 3 is the application version rollback based on BMS Bootloader upgrading that the embodiment of the present invention provides
The flowchart of software upgrading in method.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing and reality
Execute example, the present invention is further elaborated.Only should be appreciated that specific embodiment described herein
Only in order to explain the present invention, it is not intended to limit the present invention.
When the present invention can solve to utilize communication interface remote upgrade failure, system cannot run application program
Problem, and BMS system can not return back to required old version application program problem as required.This
Bright by arranging two stand-by program memory blocks, use exception handling, make the renewal of BMS system have
Stronger self-recovery ability, the bigger reliability promoting software upgrading process, enable in particular to effectively
Prevent the situation that the system start-up that occurs after system update is failed, there is higher practical value.
Fig. 1 shows the structure of traditional flash memorizer in prior art, including APP memory block and
Bootloader.Owing to using the layout meeting of traditional flash storage, there are the following problems: when system is carried out
During software upgrading, first new application A PP is downloaded in internal memory, then programming depositing to FLASH
Storage area, covers old APP.The situation that the method does not accounts for is in the updating if as the interference happened suddenly
Error in data or programming mistake can be caused, it is impossible to update and run application program.
In order to improve the reliability of software upgrading, the layout of FLASH memory has been carried out again setting by the present invention
Meter, as shown in Figure 2.Fig. 2 shows that the band version rollback function Flash storage that the embodiment of the present invention provides is shown
It is intended to；Compared with traditional flash storage (shown in Fig. 1), APP memory block is divided into: first version APP
Memory block 1, front version APP memory block 2, current version APP memory block 3 and parameter configuration district.Bootloader
3 APP file storage area are devised after memory block.Address is initial version memory block the most respectively,
Front version memory block and current version memory block.Initial program when initial version memory block storage system runs
File, front version memory block deposits last revision APP file, and current version district storage area is used for depositing currently to be wanted
The up-to-date APP file started.
Carry out software upgrading every time, version field before new APP file write, so reform into when proparea
Front version field, front version field then becomes works as proparea.Just version field is fixed on the 3rd subregion, and each is soft
The content of this memory block is not changed in part more new capital.Deposit additionally, design a parameter at the high address of FLASH
Storage area, needs the startup point used and updates the system configurations such as position during for depositing the more new procedures needing solidification
Parameter.Start point and be used to refer to bootloader needs which memory block to load APP file from, update position and use
System is indicated to carry out the state of software upgrading.
Fig. 3 shows the application version based on BMS Bootloader upgrading that the embodiment of the present invention provides
In backing method, software upgrading step realizes flow process；Particularly as follows:
S21: judge to update whether position is 0, the most then enter step S22；If it is not, position then will be updated
It is 0；
S22: report version number to the back-end, and receive new APP file；
S23: close and interrupt and read startup point value；
S24: when starting point value and being 0, new APP file is write memory block 1；When starting point value and being 1,
New APP file is write memory block 2；When starting point value and being other value, new APP file is simultaneously written
Memory block 0 and 1；And proceed to step S25；Wherein, memory block 0 refers to initial version memory block, memory block
1 refers to front version memory block, and memory block 2 refers to current version memory block.
S25: verify, amendment starts point value, and it is to restart system after 1 that juxtaposition updates position.
BMS module enters duty after powering on, and host computer is first to the software version that the report of this module is current
Number, the renewal position being then checked on FLASH, after system receives the renewal instruction that control module is sent, more
New process proceeds by software upgrading.Renewal process uses CAN protocol to receive the new APP that host computer is sent
File.After new APP file download, renewal process first judges front version field position on a flash
Put, then call the read/write function of FLASH by version memory block before the write of new APP file.After writing
Position 1 will be updated, and change startup point.If the current program version run is initial release, then will be new
APP file is simultaneously written the first two memory block.
The present invention is to improve reliability as design object, it is proposed that a kind of APP based on BMS bootloader
Version rollback strategy.This strategy has BMS system update long-range, automatization and the feature of reliability, energy
Effectively reduce maintenance cost after sale.
As it will be easily appreciated by one skilled in the art that and the foregoing is only presently preferred embodiments of the present invention, and
Not in order to limit the present invention, all made within the spirit and principles in the present invention any amendment, equivalent
With improvement etc., should be included within the scope of the present invention.
Claims (7)
1. an application version backing method based on BMS Bootloader upgrading, it is characterised in that
Comprise the steps:
(1) entering duty after BMS module powers on, host computer is current soft to the report of BMS module
Part version number, and check the renewal position on FLASH；
(2) after system receives the renewal instruction that control module is sent, software upgrading is carried out；
(3) when updating unsuccessful, it return back to original version application program and run, or according to practical situation
It return back to required old version application version run.
2. application version backing method as claimed in claim 1, it is characterised in that described software is more
New step particularly as follows:
S21: judge to update whether position is 0, the most then enter step S22；If it is not, position then will be updated
It is 0；
S22: report version number to the back-end, and receive new APP file；
S23: close and interrupt and read startup point value；
S24: when starting point value and being 0, new APP file is write memory block 1；When starting point value and being 1,
New APP file is write memory block 2；When starting point value and being other value, new APP file is simultaneously written
Memory block 0 and 1；And proceed to step S25；
S25: verify, amendment starts point value, and it is to restart system after 1 that juxtaposition updates position.
3. application version backing method as claimed in claim 2, it is characterised in that in step (2)
Carry out in software upgrading, use CAN protocol to receive the new APP file sent of host computer.
4. application version backing method as claimed in claim 3, it is characterised in that as new APP
After file download, version field position on a flash before first judging, recall the read-write of FLASH
Function is by version memory block before the write of new APP file；Position 1 will be updated after writing, and change startup point.
5. application version backing method as claimed in claim 4, it is characterised in that if currently transported
The program version of row is initial release, then new APP file is simultaneously written the first two memory block.
6. application version backing method as claimed in claim 4, it is characterised in that FLASH includes
Bootloader memory block, 3 APP file storage area and parameter configuration district；
Wherein, 3 APP file storage area are respectively as follows: initial version memory block from low to high according to address,
Front version memory block and current version memory block；Described initial version memory block is used for when storage system runs
Initially program file；Described front version storage is used for depositing last revision APP file；Described current version district
Storage area is for depositing up-to-date APP file to be started；
Need the startup point used when parameter configuration district is for depositing the more new procedures needing solidification and update position etc.
System configuration parameter.
7. application version backing method as claimed in claim 6, it is characterised in that described startup point
APP file is loaded for indicating bootloader to need from which memory block；Described renewal position is used for indicating system
System carries out the state of software upgrading.
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| CN201610556569.5A CN105930236A (en) | 2016-07-15 | 2016-07-15 | Application program version returning method based on BMS Bootloaderupgrade |
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| CN201610556569.5A CN105930236A (en) | 2016-07-15 | 2016-07-15 | Application program version returning method based on BMS Bootloaderupgrade |
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| CN107329874A (en) * | 2017-05-25 | 2017-11-07 | 云南思普投资有限公司 | A kind of System Monitor of accurate stable |
| CN107402847A (en) * | 2017-07-28 | 2017-11-28 | 安徽江淮汽车集团股份有限公司 | A kind of remote upgrade method and system of entire car controller software |
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| CN109189493A (en) * | 2018-07-23 | 2019-01-11 | 广州视源电子科技股份有限公司 | Application configuration method and apparatus, equipment, computer readable storage medium |
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| CN109992450A (en) * | 2018-01-03 | 2019-07-09 | 中兴通讯股份有限公司 | System upgrade backing method, terminal, server and storage medium |
| CN110083374A (en) * | 2019-03-25 | 2019-08-02 | 深圳猛犸电动科技有限公司 | A kind of upgrading rollback method, system and terminal device |
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| CN111694579A (en) * | 2019-03-11 | 2020-09-22 | 宁德时代新能源科技股份有限公司 | Remote upgrading method of energy storage system, energy management system and battery management system |
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| CN110569051A (en) * | 2019-08-02 | 2019-12-13 | 山东航天电子技术研究所 | On-orbit maintenance and verification method for supporting pre-started flight program |
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| CN112579103A (en) * | 2019-09-30 | 2021-03-30 | 上海度普新能源科技有限公司 | BMS program flashing device |
| CN112783547A (en) * | 2019-11-01 | 2021-05-11 | 中车株洲电力机车研究所有限公司 | Version backtracking method for software update, computer device and storage medium |
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| CN112015447B (en) * | 2020-08-10 | 2024-03-22 | 上海高仙自动化科技发展有限公司 | System updating method and device of electronic equipment, electronic equipment and storage medium |
| CN112612642A (en) * | 2020-12-17 | 2021-04-06 | 上海芯安信息科技有限公司 | Software starting and upgrading failure backspacing method and device and terminal equipment |
| CN112612642B (en) * | 2020-12-17 | 2024-06-07 | 上海芯安信息科技有限公司 | Method and device for rollback of software start and upgrade failure and terminal equipment |
| CN113434166B (en) * | 2021-06-11 | 2022-10-11 | 重庆长安汽车股份有限公司 | Double backup method containing fixed flash area and capable of rolling back |
| CN113434166A (en) * | 2021-06-11 | 2021-09-24 | 重庆长安汽车股份有限公司 | Double backup method containing fixed flash area and capable of rolling back |
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