CN108509300A - A kind of single-particle self-picketing correction method based on satellite satellited system - Google Patents
A kind of single-particle self-picketing correction method based on satellite satellited system Download PDFInfo
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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
- G06F11/1458—Management of the backup or restore process
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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
- G06F11/0703—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation
- G06F11/0751—Error or fault detection not based on redundancy
- G06F11/0754—Error or fault detection not based on redundancy by exceeding limits
- G06F11/0757—Error or fault detection not based on redundancy by exceeding limits by exceeding a time limit, i.e. time-out, e.g. watchdogs
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Abstract
The application provides a kind of single-particle self-picketing correction method based on satellite satellited system, and the single-particle inversion correction capability and housekeeping software to improve the minimum code of technical grade device storage the double wrong correction capabilities of single-particle occur to house keeping computer memory (SRAM).The method of the double self-corrections staggered the time of single-particle and a kind of method for self-correction satellite satellited system minimal mode software memory block occurring single-particle list mistake occurring for house keeping computer memory including a kind of.The two methods are able to solve the problems, such as the influence of the double wrong influences and minimal mode software single-particle inversion of the single-particle inversion of house keeping computer memory.The method corrected using above-mentioned satellited system single-particle, the double mistakes of the single-particle of housekeeping software can be realized and be corrected, the single-particle inversion situation of minimal mode software can be monitored in real time, realized and quickly corrected, ensure that the operation steady in a long-term of technical grade device satellite satellited system.
Description
Technical field
This application involves the automatic error-correcting fields of satellite Star Service system software, more particularly to one kind being based on satellite satellited system
Single-particle self-picketing correction method.
Background technology
Single-particle inversion is one kind of Space Radiation Effects, is Energetic particle bombardment bistable unit, it is made to remember 0
Or 1 change, and takes place mostly in memory and register.The memory and register of Star Service subsystem be most in satellite system
More, single-particle inversion probability of occurrence is higher.However Star Service subsystem is satellite cental system, Star Service subsystem failure directly affects
Satellite task.
Housekeeping software minimal mode is used in the prior art, to ensure the risk prevention energy of satellite satellited system bottom line
Power.In general, housekeeping software minimal mode is stored in high-grade programmable read only memory (PROM)；Existing Star Service calculates
Machine memory (SRAM) has error detection and corrects (EDAC) function, can complete the correction of single-particle list mistake.
However, on the one hand, storing software minimal mode using high-grade programmable read only memory (PROM), there are prices
High problem, and be directed to by the way of the minimum code of technical grade device storage of relative low price, although effectively reducing
Cost, but the probability for single-particle inversion correspondingly occur increases, and there is no suitable correcting method for this point at present.Another party
Face, error detection and amendment (EDAC) function of house keeping computer memory, can only correct single-particle list mistake, for simple grain
Sub double wrong can detect is not corrected, and it is double wrong to handle single-particle using house keeping computer reset processing, will cause to defend in this way
Star tasks interrupt is unfavorable for satellite use steady in a long-term.
Invention content：
The many aspects of the application provide a kind of single-particle self-picketing correction method based on satellite satellited system, to improve work
The single-particle of the single-particle inversion correction capability of the minimum code of industry grade device storage and house keeping computer memory to housekeeping software
The correction capability of double mistakes.
The embodiment of the present application provides a kind of single-particle self-picketing correction method based on satellite satellited system, including：
Step 1) backs up the data partition domain being stored in the memory of the satellite satellited system；
Step 2) analyzes the data in above-mentioned memory, recognizes whether single-particle inversion phenomenon；
Step 3), to determining that there are storage regions where the data of single-particle inversion phenomenon to carry again after step 2) analysis
Enter Backup Data.
The embodiment method further comprises：The memory is static RAM (SRAM), the static state
Random access memory (SRAM) is made of code segment region and data segment region, and the code segment region is further divided into behaviour
Make system and Star Service managing storage area and application process storage region, the data segment region is further divided into important ginseng
Number data field and real-time update data field.
The embodiment method further comprises：Exist to the code run in the operating system and Star Service managing storage area
Redundancy backup is carried out in electrically erasable programmable read-only memory (EEPROM) or flash memory (FLASH), when detecting the operation
System and the appearance pair of Star Service managing storage area are staggered the time, and carry out data to the operating system and Star Service managing storage area immediately
Refresh operation.
The embodiment method further comprises：It is to the double mistake correcting methods of the single-particle of the application process storage region：
Application process code is backed up in memory, designs the dongle of application process, and detect the soft of application process in real time
Part dog counts, and when the dongle counting of abnormal of the application process, then reloads corresponding application process.
The embodiment method further comprises：By important parameter data area in electrically erasable programmable read-only memory
(EEPROM) redundancy backup is carried out in, when the important parameter data stored in the important parameter data area normally update,
Update the important parameter data backed up in electrically erasable programmable read-only memory (EEPROM) simultaneously, when detect it is double stagger the time it is vertical
Utilize the important parameter data backed up in electrically erasable programmable read-only memory (EEPROM) to memory important parameter data
The data stored in region carry out Refresh Data.The important parameter data definition is 5 kinds of data：Attitude control control parameter, thermal control
Control parameter, orbital data, ephemeris data and satellite operation mode data.
The embodiment method further comprises：The data for Refresh Data and the application process that is reloaded
Storage location is the memory of satellite local.
The embodiment method further comprises：Backup Data has check bit.
The embodiment method further comprises：Before progress Refresh Data and application process reload, to corresponding
Backup Data is verified.
The embodiment of the present application also provides a kind of method carrying out single-particle correction to satellite satellited system minimal mode software,
Including：
Satellited system includes minimal mode software and normal mode software；
By minimal mode software at electrically erasable programmable read-only memory (EEPROM) in the form of minimal mode code
Middle carry out redundancy backup；
After normal mode software starts, minimal mode code is verified in real time, when discovery minimal mode code check
When the error occurs, by the correct minimal mode code update of verification of backup to current minimal mode code region.
The embodiment method further comprises：The minimal mode code is stored in electrically erasable programmable read-only memory
(EEPROM) in, quantity is two parts, and every part of code has check bit.
The embodiment method further comprises：To minimal mode code in idle process after the startup of normal mode software
It is monitored in real time.
Subregional backup is carried out to the data in satellite Star Service system storage；
Data in above-mentioned memory are analyzed, recognize whether single-particle inversion phenomenon；
To determining that there are storage regions where the data of single-particle inversion phenomenon to be loaded into Backup Data again after analysis.
It, can be double to the single-particle of housekeeping software wrong using the above-mentioned single-particle self-picketing correction method based on satellite satellited system
It realizes and corrects, and the single-particle inversion situation of minimal mode software can be monitored in real time, realize and quickly correct.
Description of the drawings：
Attached drawing described herein is used for providing further understanding of the present application, constitutes part of this application, this Shen
Illustrative embodiments and their description please do not constitute the improper restriction to the application for explaining the application.In the accompanying drawings：
Fig. 1 is memory partitioning situation；
Fig. 2 is the double wrong correction flow charts of single-particle inversion for housekeeping software memory；
Fig. 3 is that minimal mode software single-particle inversion corrects flow chart.
Specific implementation mode：
To keep the purpose, technical scheme and advantage of the application clearer, below in conjunction with the application specific embodiment and
Technical scheme is clearly and completely described in corresponding attached drawing.Obviously, described embodiment is only the application one
Section Example, instead of all the embodiments.Based on the embodiment in the application, those of ordinary skill in the art are not doing
Go out the every other embodiment obtained under the premise of creative work, shall fall in the protection scope of this application.
Star Service subsystem is mainly made of house keeping computer and housekeeping software.Star Service subsystem is embedded system, Star Service
Computer is by processor, and memory, Electrically Erasable Programmable Read-Only Memory (EEPROM), flash memory (FLASH) and interface processing are existing
Field programmable gate array (FPGA) forms.Due to the importance of Star Service subsystem, the reliability of Star Service subsystem, which directly affects, to be defended
The execution of star task.
In order to improve reliability, reply space radiation influences, and house keeping computer uses the Redundancy Design of cold standby, Satellite
Business software is typically designed housekeeping software minimal mode and housekeeping software normal mode two parts software.
Housekeeping software minimal mode is the set of the startup section code and minimum function system of housekeeping software, and housekeeping software is most
Small mode is that the minimum feature set of satellite saved one's life closes, and completes the temperature control of satellite minimum, gesture stability ensures the satellite energy
And temperature.In addition housekeeping software minimal mode supports the in-orbit update to normal mode code so that normal mode code can be with
Again normal operation saves satellite and continues to execute task.
Housekeeping software normal mode is the function of tonic chord carrier that satellite function is realized, housekeeping software normal mode code is stored in
In nonvolatile storage such as Electrically Erasable Programmable Read-Only Memory (EEPROM) or flash memory (FLASH), by code copies when operation
To being run in memory.
In the first embodiment of the application, the memory of satellited system is divided into four regions, as shown in Figure 1, respectively
For：Memory is divided into code segment region and data segment region, code segment region is used for store code, and data segment region is for depositing
Store up data；Further, code segment region can be further divided into Star Service managing process ＆ operating system storage regions, application
Software storage region, data segment region can be further divided into important parameter data field, real-time update data field.
The double wrong correcting methods of memory single-particle are as follows：
1) data stored in memory SRAM are analyzed first.
It is two regions that housekeeping software running memory SRAM, which is divided to, and one is code segment region, and one is data segment region.Generation
Code section region can be further divided into two parts, when operating system and Star Service managing process storage region, second is that application software
Storage region.Operating system and Star Service managing process are unable to operate normally, and housekeeping software will appear race and fly.Application software can not be just
Often operation, Star Service managing process is detectable, can handle.Data segment region can further divide, when important parameter data field, two
It is real-time update data field.Important parameter data field storage satellite important state and important parameter, such as attitude control constant parameter,
Thermal control constant parameter, important model amount.This partial data has the characteristics that.When will not real-time update, at least one can be kept
More than it；Second is that this tittle can change satellite state of a control.Important parameter data field is the key area of single-particle protection.In real time
Updating the data area, there are two features, first, meeting real-time update, i.e., have the operation that memory is write in real time；Second is that the change of data will not shadow
Ring satellite task normal operation.
2) data results are directed to, the double wrong correction of single-particle inversion are realized by the following method：
(1) internal storage code section operating system and Star Service managing storage area occur double wrong.It is read-only in electrically erasable
Two parts of codes of storage are backed up in memory (EEPROM) or flash memory (FLASH).When detect it is double stagger the time, can by electric erasable
Code in program read-only memory (EEPROM) or flash memory (FLASH) is verified, and with correct code is verified, refreshes memory
Middle operating system code and Star Service managing process code.
(2) memory applications process storage region occurs double wrong.Design process dongle in Star Service managing process.Star Service pipe
Reason process detects in real time, and the dongle of application process counts, if application process dongle counting of abnormal, illustrates that application process is run
It is abnormal, then the application process is reloaded, double wrong eliminations, are not required to carry out software reset, housekeeping software can continue after process heavy duty
Normal operation.
(3) memory important parameter data area occurs double wrong.Significant data area content includes mainly attitude control parameter, thermal control
Parameter, injection orbit, ephemeris.Important parameter data field carries out in electrically erasable programmable read-only memory (EEPROM)
Redundancy backup when memory important parameter data normally update, while updating electrically erasable programmable read-only memory (EEPROM)
The important parameter data of middle backup.When detecting that double stagger the time utilize in electrically erasable programmable read-only memory (EEPROM) immediately
It verifies correct data and Refresh Data is carried out to the partial data in memory.
In the first embodiment of the application, it is further separated out real-time update data field, the partial data data volume is big,
It is small on satellite transit influence, when single-particle is double mistakes raw, correction processing need not be carried out, if this partial data is also backed up
Housekeeping software normal work can be influenced with refreshing..
In the second embodiment of the application, define in electrically erasable programmable read-only memory (EEPROM)
The method that minimal mode code single-particle is corrected：
Minimal mode software is the startup section code of housekeeping software and minimum function code set.Minimal mode software feature
It is that operation minimal mode is only likely in the case of normal mode software anomaly.In normal mode software normal operation, most
Small mode code is never called, and is not run.Increased in normal mode software according to this feature single in real time to minimal mode software
Particle overturning monitoring and maintenance function, can be improved minimal mode anti-single particle ability.The safeguard procedures of use are as described below：
(1) minimal mode software uses redundancy backup in electrically erasable programmable read-only memory (EEPROM).It is minimum
Schema code deposits two parts in electrically erasable programmable read-only memory (EEPROM), and every part of code has check bit.
(2) after normal mode software starts, idle process is designed, minimal mode software is carried out in idle process real
When monitor.Idle process each time cycle runs, and priority is minimum.Data check is carried out to minimal mode code in real time.
When finding minimal mode code check when the error occurs, by the correct minimal mode code update of verification of backup to currently most
Small mode code region ensures minimal mode software code correctness.
In the 3rd embodiment of the application, a kind of satellite housekeeping software single-particle of technical grade house keeping computer is defined
Correcting method, for the software systems of the house keeping computer of technical grade satellite, using as previously described for simple grain in memory
Son overturns double wrong correcting methods and is corrected accordingly for the single-particle inversion correcting method of minimal mode software.
The hardware cost of satellite system can effectively be reduced using the above method on technical grade satellite, and ensure that satellite system can be at this
It is worked normally under the action of correcting method.
In the fourth embodiment of the application, a kind of technical grade satellite system is defined, including house keeping computer, the star
The satellite housekeeping software of business computer uses single-particle correcting method as described above.
In the 5th embodiment of the application, a kind of computer readable storage medium of storage computer instruction is defined,
When the computer instruction is executed by one or more processors, it includes following to cause one or more of processor execution
Action：
Subregional backup is carried out to the data in satellite Star Service system storage；
Data in above-mentioned memory are analyzed, recognize whether single-particle inversion phenomenon；
To determining that there are storage regions where the data of single-particle inversion phenomenon to be loaded into Backup Data again after analysis.
In the 5th embodiment of the application, the computer readable storage medium can by any kind of volatibility or
Non-volatile memory device or combination thereof are realized, such as static RAM (SRAM), electrically erasable
Read-only memory (EEPROM), Erasable Programmable Read Only Memory EPROM (EPROM), programmable read only memory (PROM) are read-only
Memory (ROM), magnetic memory, flash memory, disk or CD.
It should be understood by those skilled in the art that, the embodiment of the present invention can be provided as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the present invention
Apply the form of example.Moreover, the present invention can be used in one or more wherein include computer usable program code computer
The computer program production implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.)
The form of product.
The present invention be with reference to according to the method for the embodiment of the present invention, the flow of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that can be realized by computer program instructions every first-class in flowchart and/or the block diagram
The combination of flow and/or box in journey and/or box and flowchart and/or the block diagram.These computer programs can be provided
Instruct the processor of all-purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine so that the instruction executed by computer or the processor of other programmable data processing devices is generated for real
The device for the function of being specified in present one flow of flow chart or one box of multiple flows and/or block diagram or multiple boxes.
These computer program instructions, which may also be stored in, can guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works so that instruction generation stored in the computer readable memory includes referring to
Enable the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one box of block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device so that count
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, in computer or
The instruction executed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram one
The step of function of being specified in a box or multiple boxes.
In a typical configuration, computing device includes one or more processors (CPU), input/output interface, net
Network interface and memory.
Memory may include computer-readable medium in volatile memory, random access memory (RAM) and/
Or the forms such as Nonvolatile memory, such as read-only memory (ROM) or flash memory (flash RAM).Memory is computer-readable medium
Example.
Computer-readable medium includes permanent and non-permanent, removable and non-removable media can be by any method
Or technology realizes information storage.Information can be computer-readable instruction, data structure, the module of program or other data.
The example of the storage medium of computer includes, but are not limited to phase transition internal memory (PRAM), static RAM (SRAM), moves
State random access memory (DRAM), other kinds of random access memory (RAM), read-only memory (ROM), electrically erasable
Except programmable read only memory (EEPROM), fast flash memory bank or other memory techniques, read-only disc read only memory (CD-ROM) (CD-
ROM), digital versatile disc (DVD) or other optical storages, magnetic tape cassette, tape magnetic disk storage or other magnetism are deposited
Equipment or any other non-transmission medium are stored up, can be used for storage and can be accessed by a computing device information.According to boundary herein
Fixed, computer-readable medium does not include temporary computer readable media (transitory media), such as the data-signal of modulation and
Carrier wave.
It should also be noted that, the terms "include", "comprise" or its any other variant are intended to nonexcludability
Including so that process, method, commodity or equipment including a series of elements include not only those elements, but also wrap
Include other elements that are not explicitly listed, or further include for this process, method, commodity or equipment intrinsic want
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that wanted including described
There is also other identical elements in the process of element, method, commodity or equipment.
The above-mentioned description to embodiment is that this Shen can be understood and applied for the ease of those skilled in the art
Please.Person skilled in the art obviously easily can make various modifications to these embodiments, and described herein
General Principle is applied in other embodiments without paying performing creative labour.Therefore, the application is not limited to implementation here
Example, those skilled in the art make according to herein disclosed content in the case where not departing from the application scope and spirit
It improves and changes within all scope of the present application.
Claims (10)
1. a kind of single-particle self-picketing correction method based on satellite satellited system, which is characterized in that include the following steps：
Step 1) backs up the data partition domain being stored in the memory of the satellite satellited system；
Step 2) analyzes the data in above-mentioned memory, recognizes whether single-particle inversion phenomenon；
Step 3), to determined after step 2) analysis there are storage region where the data of single-particle inversion phenomenon be loaded into again it is standby
Part data.
2. a kind of single-particle self-picketing correction method based on satellite satellited system as described in claim 1, it is characterised in that：It is described
Memory is static RAM SRAM, and the static RAM SRAM is by code segment region and data segment
Region is constituted, and the code segment region is further divided into operating system and Star Service managing storage area and application process storage
Region, the data segment region are further divided into important parameter data field and real-time update data field.
3. a kind of single-particle self-picketing correction method based on satellite satellited system as claimed in claim 2, it is characterised in that：To institute
It states the code run in operating system and Star Service managing storage area and carries out redundancy backup in EEPROM or FLASH, work as detection
It staggers the time to operating system in memory and the appearance pair of Star Service managing storage area, the operating system and Star Service management is stored immediately
Region carries out data refresh operation.
4. a kind of single-particle self-picketing correction method based on satellite satellited system as claimed in claim 3, it is characterised in that：To institute
The double wrong correcting methods of single-particle for stating application process storage region are：Application process code is backed up in memory, if
The dongle of application process is counted, and the dongle of detection application process counts in real time, when the dongle of the application process counts
When abnormal, then corresponding application process is reloaded.
5. a kind of single-particle self-picketing correction method based on satellite satellited system as claimed in claim 4, it is characterised in that：It will weigh
Supplemental characteristic region is wanted to carry out redundancy backup in EEPROM, when the important parameter number stored in the important parameter data area
When according to normal update, while the important parameter data backed up in EEPROM are updated, when detecting that double stagger the time utilize EEPROM immediately
The important parameter data of middle backup carry out Refresh Data to the data stored in important supplemental characteristic region, wherein the important ginseng
Number data definition is 5 kinds of data：Attitude control control parameter, thermal control control parameter, orbital data, ephemeris data and satellite operation mould
Formula data.
6. a kind of single-particle self-picketing correction method based on satellite satellited system as claimed in claim 5, it is characterised in that：In real time
The data update frequency updated the data in area is high, small on software operation state influence, and it is standby redundancy need not to be carried out in EEPROM
Part, if this partial data occurs double mistakes and does not need refresh process.
7. a kind of single-particle self-picketing correction method based on satellite satellited system as described in claim 1-6, it is characterised in that：Institute
The storage location for stating the data for Refresh Data and the application process being reloaded is depositing for satellite house keeping computer local
Reservoir.
8. a kind of single-particle self-picketing correction method based on satellite satellited system as described in claim 1-7, it is characterised in that：It is standby
Part data have check bit.
9. a kind of single-particle self-picketing correction method based on satellite satellited system as claimed in claim 8, it is characterised in that：Into
Before row Refresh Data and application process are reloaded, corresponding Backup Data is verified.
10. a kind of method carrying out single-particle correction to satellite satellited system minimal mode software, it is characterised in that：
Satellited system includes minimal mode software and normal mode software；
Minimal mode software is subjected to redundancy backup in the form of minimal mode code in EEPROM；The minimal mode code
Quantity is two parts, and every part of code has check bit；
In idle process after the startup of normal mode software, minimal mode code is verified in real time, when discovery minimal mode
Code check verifies correct minimal mode code update to current minimal mode code area when the error occurs, by backup
Domain.
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| CN110727544A (en) * | 2019-10-15 | 2020-01-24 | 深圳航天东方红海特卫星有限公司 | Microsatellite satellite-borne computer system based on industrial devices |
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| CN112987044A (en) * | 2021-02-25 | 2021-06-18 | 中国科学院微小卫星创新研究院 | Constellation ephemeris on-orbit updating method |
| CN113051007A (en) * | 2021-04-15 | 2021-06-29 | 中国科学院微小卫星创新研究院 | Device and method for quickly guiding housekeeping software |
| CN114090327A (en) * | 2022-01-20 | 2022-02-25 | 浙江吉利控股集团有限公司 | Single-particle error processing method, system and device |
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| CN111856991A (en) * | 2020-06-22 | 2020-10-30 | 北京遥测技术研究所 | Signal processing system and method with five-level protection on single event upset |
| CN111856991B (en) * | 2020-06-22 | 2021-11-16 | 北京遥测技术研究所 | Signal processing system and method with five-level protection on single event upset |
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| CN112256463A (en) * | 2020-09-30 | 2021-01-22 | 北京控制工程研究所 | Single-particle soft error processing method for ensuring content consistency of Cache and off-chip memory |
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