CN108037942A - A kind of self-adapting data of embedded device recovers and update method and device - Google Patents
A kind of self-adapting data of embedded device recovers and update method and device Download PDFInfo
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- CN108037942A CN108037942A CN201711276837.9A CN201711276837A CN108037942A CN 108037942 A CN108037942 A CN 108037942A CN 201711276837 A CN201711276837 A CN 201711276837A CN 108037942 A CN108037942 A CN 108037942A
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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
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Abstract
A kind of self-adapting data the invention discloses embedded device recovers and update method and device, solve the problems, such as that the underaction that self data recovery of existing embedded device and field data present in update method are recovered to bring by artificial renewal and artificial disassemblerassembler with update mode is easy, and backup formula data recovery with renewal because redundant memory cell is not used for a long time and caused by the utilization of resources is low and raising memory cell data exception probability reduction device data recovery and the problem of update reliability.
Description
Technical field
A kind of self-adapting data the present invention relates to equipment recovers and update method, more particularly to a kind of embedded device
Self-adapting data recovers and update method；A kind of self-adapting data the invention further relates to embedded device recovers and more new clothes
Put.
Background technology
Embedded device extensive use in the platform such as spaceborne, airborne, carrier-borne, vehicle-mounted and extreme environment at present, it is embedded
(such as embedded system, answer storage unit (such as NAND FLASH, NOR FLASH or NVRAM) storage data in formula equipment
With software when) when, because inevitable factor causes data exception to need data recovery；Because of Function Extension or performance boost etc.
Reason needs data update.Existing embedded device data recovery mainly has two classes with update method：First, field data is extensive
Multiple and renewal；Second, backup formula data recovery and renewal.It is that engineer carries maintenance workers that field data, which is recovered with the method for renewal,
Tool carries out the renewal and recovery of data, although this data recovery is reliable with update mode, needs to set to embedded at the scene
It is standby to carry out dismounting processing, spend human and material resources and inconvenient；Backup formula data recovery and the method for renewal are to utilize storage unit
Different subregions or different storage units carry out data backup, when performing the data exception in storage unit, by hard
Part switch means activate backup subregion or redundant memory cell, then using backup subregion or redundant memory cell as new execution
Storage unit copies the Backup Data in backup subregion or redundant memory cell in former execution storage unit to, due to standby
Part subregion or redundant memory cell are seldom accessed so that resource utilization is low, and it is big that abnormal probability occur in data.
The content of the invention
In order to solve to be needed at the scene to embedded present in the data recovery of existing embedded device and update method
Equipment carries out dismounting processing, spends human and material resources and inconvenient；Backup subregion or redundant memory cell are seldom accessed so that money
Source utilization rate is low, and the problem of abnormal probability is big occur in data, and the present invention provides a kind of self-adapting data of embedded device
Recovery and update method.A kind of self-adapting data of embedded device of the present invention recovers and update method, it is characterised in that bag
Include following steps：
After equipment starts, the storage unit that processing unit produces reads signal to arbitration unit；
After arbitration unit detects the reading signal produced by processing unit, produce storing data state and read signal to shape
State response unit；
After condition responsive unit detects that storing data state reads signal, status information stream is produced to arbitration unit, and
It is carried out at the same time condition responsive；
Arbitration unit is arbitrated after detecting status information stream, one work of selection in storage unit 1 and storage unit 2
To perform storage unit, row bus of going forward side by side switching, establishes the passage connection between processing unit and storage unit, and sends read signal
Give execution storage unit；
After storage unit detects read signal, data load signal is produced；
After processing unit detects data load signal, load data from execution storage unit and carry out data processing,
Data are produced during data processing and perform signal to arbitration unit；
After arbitration unit detects that data perform signal, the current data performed in storage unit are judged according to arbitration rules
It is whether normal, and produce arbitrating signals and give condition responsive unit, at the same according to arbitration result decide whether to produce reset signal to
Processing unit and bus selection is switched to another storage unit；
Condition responsive unit detects that arbitration result can be carried out storage after arbitrating signals is carried out at the same time condition responsive；
After processing unit detects reset signal, equipment can reset, and then processing unit can load another storage unit
In data；
In equipment running process, if communication unit detects update data stream by external communication interface, number can be produced
According to more new signal to processing unit；
Processing unit can receive renewal receipt after detecting data update signal, and produce storage unit write signal to arbitration
Unit；
Arbitration unit detects that arbitrating signals can be produced after storage unit write signal gives condition responsive unit, while switches total
Line establishes the connection of processing unit and non-executing storage unit, and produces write signal and give non-executing storage unit；
Storage unit produces data write signal to processing unit after detecting write signal；
Processing unit detects long-range updates the data write-in non-executing after data write signal by what is received in communication unit
Storage unit；
The arbitrating signals determine to set for the last time using which storage unit as storage unit, its value of saving is performed
Value in the arbitrating signals that arbitration unit produces in received shipment row, is stored in condition responsive unit, and after equipment startup, processing is single
Member can first determine a storage unit as execution storage unit according to this value of saving and therefrom load data；
Present invention also offers a kind of quick self-destruction device of encrypted stored data, it is characterised in that including：Storage unit
1st, storage unit 2, arbitration unit, condition responsive unit, processing unit, communication unit, external communication interface；
The storage unit 1 and storage unit 2 are used for the storage of various data, processing unit can according to arbitrating signals with
One of unit establishes connection, and as execution storage unit；
The arbitration unit is the core cell of the present apparatus, for arbitrating storage unit and determining which storage is single
Member is used as execution unit, and arbitration unit understands the state of memory cells information in stress state response unit, and according to arbitration rules
Establish the passage connection between processing unit and storage unit；
The condition responsive unit is used to respond the current state of whole device and to have recorded two storage units newest
Status information, before data are performed in the memory unit, arbitration unit can load these status informations, and according to certain rule come
Determine execution storage unit of the storage unit as this, condition responsive unit is connected with arbitration unit, receives and record
The status information of the two units simultaneously responds thereto；
The processing unit be used for handle various data and signal, in the present apparatus with communication unit and arbitration unit phase
Connection, in data loading phase, processing unit can determine to load the data in which storage unit according to arbitrating signals, soft
In part operational process, the teledata in communication unit can be detected, and writes data into non-executing storage unit.
The communication unit is mainly used for receiving with handling teledata, with processing unit and external communication interface phase
Even, after teledata is received, data can be verified, the processing such as package and caching, while data update can be produced
Signal is to processing unit.
The external communication interface is typically a kind of remote data communication interface, is that communication unit receives long-range renewal number
According to passage.
A kind of self-adapting data of embedded device of the present invention recovers to have with update method and device following beneficial to effect
Fruit, in terms of flexibility, due to introducing remote data update mechanism so that the software data data recovery of embedded device with
Renewal recovers departing from artificial data and updates, the intervention of arbitration unit in most cases so that storage unit can be with
Use is alternateed, substantially increases the utilization rate of resource so that the average read-write service life of storage device improves, and effectively keeps away
Exempt from storage unit and the problem of data exception occur because not accessed for a long time；In intelligent aspect, remote data update mechanism
Cooperate with arbitration unit arbitration mechanism so that equipment can load newest most effective data according to their needs, and lead to
Cross condition responsive unit accurately to reflect various real-time status, the data recovery of equipment and renewal is reached adaptive
Purpose；In terms of reliability, the mechanism that double memory cell coordinates arbitration unit effectively and reliably can ensure that local data is steady
Fixed storage and self-recovery, substantially increase local data data recovery and the reliability of renewal, remote data update aspect, leads to
Believe that unit can carry out checking treatment to data in itself, can ensure the reliable transmission of data to a certain extent, more be worth mentioning
, occur error in data during remote transmission, it is abnormal data to cause the data in a storage unit, still
The valid data in another storage unit can be performed, with ensure equipment still can normal operation, in the process of running, processing
Unit can receive newest data deposit storage unit again according to arbitrating signals, carry out according to this, until data transmission is correct.
Brief description of the drawings
Fig. 1 is that a kind of self-adapting data of embedded device of the present invention recovers to illustrate with the implementation of update method and device
It is intended to.
Embodiment
Fig. 1 is self-adapting data recovery and update method and the embodiment of device, the bag of a kind of embedded device of the present invention
Include：Storage unit 1, storage unit 2, arbitration unit, condition responsive unit, processing unit, communication unit, external communication interface.
The storage unit 1 and storage unit 2 are used for the storage of various data, and various data can be embedded device
The system bootstrap routine or embedded system or other application program of middle operation, and store number in specific position
According to header, for the newest status information of record storage unit, in the start-up course of whole equipment, processing unit and arbitration
Unit can load these status informations, and determine that a storage unit stores list as this execution according to certain rule
Member.The storage unit is preferably the storage chip that NOR FLASH or NVRAM etc. can be run, or NAND
The stable storage chip such as FLASH or EEPROM.
The arbitration unit is the core cell of the present apparatus, for arbitrating storage unit and determining which storage is single
Member is used as execution unit, and arbitration unit understands the state of memory cells information in stress state response unit, and according to arbitration rules
Establish the passage connection between processing unit and storage unit.The arbitration unit can be realized by FPGA or CPLD.
The condition responsive unit is used to respond the current state of whole device and to have recorded two storage units newest
Status information, before data are performed in the memory unit, arbitration unit can load these status informations, and according to certain rule come
Determine execution storage unit of the storage unit as this, condition responsive unit is connected with arbitration unit, receives and record
The status information of the two units simultaneously responds thereto.The state corresponding units can by MCU and NVRAM,
The mutual cooperation of the devices such as EEPROM and LED, buzzer or display screen is realized.
The processing unit be used for handle various data and signal, in the present apparatus with communication unit and arbitration unit phase
Connection, in data loading phase, processing unit can determine to load the data in which storage unit according to arbitrating signals, soft
In part operational process, the teledata in communication unit can be detected, and writes data into non-executing storage unit.The place
Manage unit can use inside the process chip such as MCU, ARM, PowerPC, FPGA, CPLD it is one or several kinds of with it is other external
Equipment cooperates to realize.
The communication unit is used to receive the data that external communication interface transmits, and carries out verification confirmation and tear open
The processing such as bag, then produces data update signal and is sent to processing unit.The communication unit can use ethernet communication
Other communication modules such as module, GPRS communication modules, cdma communication module and LTE communication module are realized.
External communication interface is used to detect and receive teledata, and sends the data to communication unit.The outside
Communication interface can be realized by the radio antenna based on various agreements or Ethernet interface etc..
A kind of self-adapting data of embedded device of the present invention recovers and update method, it is characterised in that including as follows
Step：
After equipment starts, the storage unit that processing unit produces reads signal to arbitration unit；
After arbitration unit detects the reading signal by processing unit production, produce storing data state and read signal to shape
State response unit；
After condition responsive unit detects that storing data state reads signal, status information stream is produced to arbitration unit, and
It is carried out at the same time condition responsive；
Arbitration unit is arbitrated after detecting status information stream, in storage unit 1 with determining that one is held in storage unit 2
Line storage unit, row bus of going forward side by side switching, establishes the connection between processing unit and storage unit, and send read signal and deposited to execution
Storage unit；
After storage unit detects read signal, data load signal is produced；
After processing unit detects data load signal, load data from execution storage unit and carry out data processing,
Data are produced during data processing and perform signal to arbitration unit；
After arbitration unit detects that data perform signal, the current data performed in storage unit are judged according to arbitration rules
It is whether normal, and produce arbitrating signals and give condition responsive unit, while generation reset signal is decided whether to according to arbitration result
Another storage unit is switched to processing unit and by bus selection；
Condition responsive unit detects that arbitration result can be carried out storage after arbitrating signals is carried out at the same time condition responsive；
After processing unit detects reset signal, equipment can reset, and then processing unit can load another storage unit
In data；
In equipment running process, if communication unit detects update data stream by external communication interface, number can be produced
According to more new signal to processing unit；
Processing unit can receive renewal receipt after detecting data update signal, and produce storage unit write signal to arbitration
Unit；
Arbitration unit detects that arbitrating signals can be produced after storage unit write signal gives condition responsive unit, while switches total
The connection of processing unit and non-executing storage unit is established, and produces write signal and gives non-executing storage unit；
Storage unit produces data write signal to processing unit after detecting write signal；
Processing unit detects long-range updates the data write-in non-executing after data write signal by what is received in communication unit
Storage unit.
Claims (7)
1. a kind of self-adapting data of embedded device recovers and updating device, it is characterised in that including：Storage unit 1, storage
Unit 2, arbitration unit, condition responsive unit, processing unit, communication unit, external communication interface；
The storage unit 1 and storage unit 2 are used for the storage of various data, processing unit can according to arbitrating signals with wherein
One unit establishes connection, and as execution storage unit；
The arbitration unit is used to arbitrate storage unit and determines one of storage unit is single as execution unit, arbitration
State of memory cells information in member meeting stress state response unit, and establish processing unit and storage unit according to arbitration rules
Between passage connection；
The condition responsive unit is used to respond the current state of whole device and have recorded two newest states of storage unit
Information, before data are performed in the memory unit, arbitration unit can load these status informations, and be determined according to certain rule
One storage unit is connected as this execution storage unit, condition responsive unit with arbitration unit, receive and record this two
The status information of a unit simultaneously responds thereto；
The processing unit is used to handle various data and signal, is connected in the present apparatus with communication unit and arbitration unit
Connect, in data loading phase, processing unit can determine to load the data in which storage unit according to arbitrating signals, in software
In operational process, the teledata in communication unit can be detected, and writes data into non-executing storage unit.
The communication unit is used to receiving and handling teledata, is connected with processing unit and external communication interface, works as reception
To after teledata, data can be verified, the processing such as package and caching, while data update signal can be produced to processing
Unit.
The external communication interface is typically a kind of remote data communication interface, is that communication unit reception remotely updates the data
Passage.
2. device according to claim 1, it is characterised in that：The state corresponding units can by MCU with
The mutual cooperation of the device such as NVRAM, EEPROM and LED, buzzer or display screen is realized.
3. device according to claim 1, it is characterised in that：The storage unit includes NOR FLASH or NVRAM
Etc. the storage chip that can be run, or the stable storage chip such as NAND FLASH or EEPROM.
4. device according to claim 1, it is characterised in that：The arbitration unit includes passing through FPGA or CPLD.
5. device according to claim 1, it is characterised in that：The processing unit can use MCU, ARM,
It is one or several kinds of mutual with other external equipments inside the process chips such as PowerPC, FPGA, CPLD.
6. device according to claim 1, it is characterised in that:The communication unit can use ethernet communication mould
Other communication modules such as block, GPRS communication modules, cdma communication module and LTE communication module are realized.
7. a kind of self-adapting data of embedded device recovers and update method, it is characterised in that includes the following steps：
After equipment starts, the storage unit that processing unit produces reads signal to arbitration unit；
After arbitration unit detects the reading signal by processing unit production, produce storing data state reading signal and rung to state
Answer unit；
After condition responsive unit detects that storing data state reads signal, status information stream is produced to arbitration unit, and at the same time
Carry out condition responsive；
Arbitration unit is arbitrated after detecting status information stream, in storage unit 1 with determining that an execution is deposited in storage unit 2
Storage unit, row bus of going forward side by side switching, establishes the connection between processing unit and storage unit, and it is single to storage is performed to send read signal
Member；
After storage unit detects read signal, data load signal is produced；
After processing unit detects data load signal, from performing loading data in storage unit and carrying out data processing, in number
Data are produced during according to processing and perform signal to arbitration unit；
After arbitration unit detects that data perform signal, whether the current data performed in storage unit are judged according to arbitration rules
Normally, and arbitrating signals are produced give condition responsive unit, while decide whether to produce reset signal to place according to arbitration result
Manage unit and bus selection is switched to another storage unit；
Condition responsive unit detects that arbitration result can be carried out storage after arbitrating signals is carried out at the same time condition responsive；
After processing unit detects reset signal, equipment can reset, and then processing unit can be loaded in another storage unit
Data；
In equipment running process, if communication unit detects update data stream by external communication interface, data can be produced more
New signal is to processing unit；
Processing unit can receive renewal receipt after detecting data update signal, and it is single to arbitration to produce storage unit write signal
Member；
Arbitration unit detects that arbitrating signals can be produced after storage unit write signal gives condition responsive unit, while switches total establish
Processing unit and the connection of non-executing storage unit, and produce write signal and give non-executing storage unit；
Storage unit produces data write signal to processing unit after detecting write signal；
Processing unit stores the long-range write-in non-executing that updates the data received in communication unit after detecting data write signal
Unit.
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| CN201711276837.9A CN108037942B (en) | 2017-12-06 | 2017-12-06 | Adaptive data recovery and update method and device for embedded equipment |
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| CN201711276837.9A CN108037942B (en) | 2017-12-06 | 2017-12-06 | Adaptive data recovery and update method and device for embedded equipment |
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| CN108037942B CN108037942B (en) | 2021-04-09 |
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| CN110031054A (en) * | 2019-03-27 | 2019-07-19 | 上海飞奥燃气设备有限公司 | Gas meter, flow meter intelligent controller and its firmware upgrade start method |
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| CN108037942B (en) | 2021-04-09 |
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