CN106503542A - The anti-Improvement of device parameter, equipment and air-conditioner - Google Patents
The anti-Improvement of device parameter, equipment and air-conditioner Download PDFInfo
- Publication number
- CN106503542A CN106503542A CN201610895388.5A CN201610895388A CN106503542A CN 106503542 A CN106503542 A CN 106503542A CN 201610895388 A CN201610895388 A CN 201610895388A CN 106503542 A CN106503542 A CN 106503542A
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- Prior art keywords
- data
- log
- eeprom
- equipment
- conditioner
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/50—Monitoring users, programs or devices to maintain the integrity of platforms, e.g. of processors, firmware or operating systems
- G06F21/51—Monitoring users, programs or devices to maintain the integrity of platforms, e.g. of processors, firmware or operating systems at application loading time, e.g. accepting, rejecting, starting or inhibiting executable software based on integrity or source reliability
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/50—Monitoring users, programs or devices to maintain the integrity of platforms, e.g. of processors, firmware or operating systems
- G06F21/52—Monitoring users, programs or devices to maintain the integrity of platforms, e.g. of processors, firmware or operating systems during program execution, e.g. stack integrity ; Preventing unwanted data erasure; Buffer overflow
Abstract
The invention discloses a kind of anti-Improvement of device parameter, equipment and air-conditioner, solve the data in existing equipment in EEPROM and are easily written over technical problem.After being included in device power, the log-on data of EEPROM memory storages is read；Judge whether log-on data is normal；If so, log-on data is backed up；If it is not, during by once going up electricity before equipment, through judge normal after in the log-on data write EEPROM that backs up so that equipment executes the data starting device in EEPROM；The protection that the mechanism for starting afterwards realizes log-on data is first backed up by upper electricity, the data in existing equipment in EEPROM is not only solved and is easily written over technical problem, be also accomplished that backup and recovery to newest log-on data；Also, which is without the need for writing log-on data in operation program so that in the homologous series equipment type of application difference log-on data, unified software can be developed, the versatility of software design is improved.
Description
Technical field
The invention belongs to air-conditioner technical field, specifically, be related to a kind of anti-Improvement of device parameter, equipment and
Air-conditioner.
Background technology
Electronic equipment, such as air-conditioner, control board in, by design hardware filtering circuit and mu balanced circuit come
The anti-interference of holding circuit and the stability of power supply.
Generally, the MCU of equipment（Micro-control unit）Minimum running voltage be 4.5V, EEPROM（Electric erazable programmable is only
Read memorizer）Minimum running voltage be 1.8V, when the situation for frequent break-make power supply occur, power source supplying voltage is in 1.8V
To between 4.5V, now, MCU has quit work, and EEPROM is still in work, namely EEPROM can be written and read, and now
MCU has quit work so that EEPROM is in runaway condition, and now, filter circuit and mu balanced circuit are also because brownout stops
Only work so that EEPROM be possible to can because be interfered, electromagnetic field or abnormity of power supply cause to occur read write command interrupt with
And the situation that data are written over.
Device systems and automatically controlled application data is commonly stored in EEPROM, for example, for air-conditioner, in EEPROM
The operational factors such as the position of air-conditioner guide plate, wind speed, design temperature are stored, if these parameters are written over, air-conditioner can be caused
Start is abnormal.
Content of the invention
This application provides a kind of anti-Improvement of device parameter, equipment and air-conditioner, solve EEPROM in existing equipment
In data be easily written over technical problem.
For solving above-mentioned technical problem, the application is employed the following technical solutions and is achieved：
A kind of anti-Improvement of device parameter is proposed, including：After device power, the log-on data of EEPROM memory storages is read；
Judge whether the log-on data is normal；If so, the log-on data is backed up；If it is not, during by once going up electricity before the equipment, warp
Judge that the log-on data of normal rear backup is write in the EEPROM, so that the data that the equipment is executed in the EEPROM are opened
Move the equipment；Wherein, when the log-on data is the device powers down, the operation being stored in the EEPROM sets ginseng
Number.
Further, described by electricity is once gone up before the equipment when, through judge normal after the log-on data write institute that backs up
State in EEPROM, specially：Through just judging when once going up electricity before reading the equipment from the memory element of the MCU of the equipment
The log-on data of backup after often；The log-on data of the backup is write in the EEPROM；Or, the backup from the EEPROM
Once go up before the equipment is read in region the log-on data backed up after judging normally during electricity；Log-on data by the backup
Write in the EEPROM.
Further, described judge that the log-on data is whether normal, specially：The log-on data for reading is carried out
Weighted sum is calculated；Numerical value of the weighted sum result of calculation with check bit storage in the EEPROM is compared；Judge to compare knot
Whether fruit is consistent；Wherein, when the numerical value of the check bit storage is a front power-off of the device power, it is stored in described
The weighted sum of the operation setup parameter in EEPROM.
A kind of equipment is proposed, including MCU and EEPROM；The EEPROM is used for the log-on data for storing the equipment；Institute
Stating equipment also includes backup units；The MCU includes read-write cell, judging unit and start unit；The read-write cell, is used for
On said device after electricity, the log-on data of the EEPROM memory storages is read；The judging unit, for judging the startup
Whether data are normal；The backup units, for will judge normal startup number through the judging unit during device power
According to being backed up；When the judging unit judges that the log-on data is abnormal, the read-write cell is additionally operable to from described standby
The startup number that backs up when judging normal through the judging unit when once going up electricity before reading the equipment in part unit simultaneously writes institute
State in EEPROM, so that the equipment is started based on the backup log-on data；Wherein, the log-on data is disconnected for the equipment
When electric, the operation setup parameter that is stored in the EEPROM.
Further, the backup units are the memory element of the MCU of the equipment；Or, the backup units are described
Backup region in EEPROM.
Further, the judging unit includes weighting block and comparison module；The weighting block, for by read
The log-on data is weighted and calculates；The comparison module, for by weighted sum result of calculation and the EEPROM lieutenant colonel
The numerical value for testing position storage is compared, and judges whether comparative result is consistent；Wherein, the numerical value of the check bit storage is set for described
During a front power-off of standby upper electricity, the weighted sum of the operation setup parameter being stored in the EEPROM.
A kind of air-conditioner is proposed, including MCU and EEPROM；The EEPROM is used for the startup number for storing the air-conditioner
According to；The air-conditioner also includes backup units；The MCU includes read-write cell, judging unit and start unit；The read-write is single
Unit, after electric on the air-conditioner, reads the log-on data of the EEPROM memory storages；The judging unit, for sentencing
Whether the log-on data of breaking is normal；The backup units, for will judge through the judging unit during electricity on the air-conditioner
Normal log-on data is backed up；When the judging unit judges that the log-on data is abnormal, the read-write cell is also
Back up when judging normal through the judging unit during for once going up electricity before reading the air-conditioner from the backup units
Log-on data is simultaneously write in the EEPROM, so that the air-conditioner is started based on the backup log-on data；Wherein, described open
When dynamic data are the air-conditioner power-off, the operation setup parameter being stored in the EEPROM.
Further, the backup units are the memory element of the MCU of the air-conditioner；Or, the backup units are institute
State the backup region in EEPROM.
Further, the judging unit includes weighting block and comparison module；The weighting block, for by read
The log-on data is weighted and calculates；The comparison module, for by weighted sum result of calculation and the EEPROM lieutenant colonel
The numerical value for testing position storage is compared, and judges whether comparative result is consistent；Wherein, the numerical value of the check bit storage is the sky
When adjusting a front power-off of electricity on device, the weighted sum of the operation setup parameter being stored in the EEPROM.
Compared with prior art, the advantage of the application and good effect are：The anti-rewriting side of device parameter that the application is proposed
In method, equipment and air-conditioner, after the log-on data that device power reads in EEPROM, directly do not execute and open according to log-on data
The step of dynamic equipment, but first judge whether log-on data is normal, if normally, the log-on data read from EEPROM is entered
Row backup, just executes startup program according to log-on data after the completion of backup, if abnormal, will once go up electricity and just judge before equipment
The log-on data backed up after often is read out in write EEPROM so that equipment is according to the backup log-on data for re-writing
Started；Thus, the protection that the mechanism for starting afterwards realizes log-on data is first backed up by a kind of upper electricity, is different from existing to go out
Factory's log-on data backup, the mode for recovering EEPROM data after the corrupted data in EEPROM with log-on data of dispatching from the factory, this Shen
Please in the data that not only solve in existing equipment in EEPROM of mode be easily written over technical problem, ensure that in EEPROM
In corrupted data after equipment also normally can start, be also accomplished that backup and recovery to newest log-on data；Also, should
Log-on data only need to be write i.e. achievable equipment in EEPROM and be started without the need for writing log-on data in operation program by mode,
So that in the homologous series equipment type of application difference log-on data, unified software can be developed, without the need for for per money machine
Type needs to change different editions software as log-on data is different, so as to improve the versatility of software design, it is to avoid software
The artificial maloperation that editor repeatedly easily causes.
After the detailed description of the application embodiment is read in conjunction with the accompanying, other features of the application and advantage will become more
Plus it is clear.
Description of the drawings
Fig. 1 is the flow chart of the anti-Improvement of device parameter that the application is proposed；
Fig. 2 is the equipment Organization Chart that the application is proposed.
Specific embodiment
Below in conjunction with the accompanying drawings the specific embodiment of the application is described in more detail.
The application aims to provide a kind of anti-Improvement of device parameter, realizes the anti-rewriting protection to equipment log-on data,
The capacity of resisting disturbance of enhancing equipment, it is ensured that normal startup.
As shown in figure 1, the application proposes a kind of device parameter housing reform write method, comprise the steps：
Step S11：Device power.
Step S12：Read the log-on data of EEPROM memory storages.
In device powers down, log-on data, such as equipment operation setup parameter can be stored in write EEPROM, equipment
After upper electricity, according to usual step, log-on data can be read from EEPROM, according to log-on data starting device.But in power-off or
Before the upper electricity of person is stable, there is situation of the running voltage between 1.8V to 4.5V, during this, it is possible to can be because interference etc.
Factor causes EEPROM to be mistakenly rewritten, and causes log-on data to damage so that equipment normally can not start.
Step S13：Judge whether log-on data is normal.
In the application, after log-on data is read out from EEPROM, starting device is not used directly to, but
Judgement is first passed around, when judging normal,
Step S14：Backup log-on data.
After judging that log-on data is normal, log-on data is backed up, is backed up the memory element of the preferred MCU in region,
Can be the special backup region that opens in EEPROM, can also be that single memory device, the embodiment of the present application are not limited.
If log-on data is abnormal, step S15：During by once going up electricity before equipment, the startup of backup after judging normally
In data write EEPROM, so that the data that equipment is executed in EEPROM start the equipment.
When the data for judging to read are abnormal, when region is backed up by electricity is once gone up before equipment, through step S11 to step
Rapid S14 through judge normal after the log-on data that backs up read out, and write in EEPROM, then, equipment is from EEPROM
The middle backup log-on data for re-writing that reads executes startup program.
Above-mentioned visible, what the embodiment of the present application was proposed is that a kind of device power first backs up the mechanism for starting afterwards, is accomplished that
The protection of log-on data, be different from existing will dispatch from the factory log-on data backup, after the corrupted data in EEPROM with startup of dispatching from the factory
The mode of data recovery EEPROM data, the mode in the application is due to carrying out normal log-on data first after device power
Backup, not only solves the data in existing equipment in EEPROM and is easily written over technical problem, ensure that in EEPROM
After corrupted data, equipment also normally can start, and also be accomplished that backup and recovery to newest log-on data.
Also, the mode that the embodiment of the present application is proposed only need to will start number without the need for writing log-on data in operation program
Start according to can achieve equipment in write EEPROM so that in the homologous series equipment type of application difference log-on data,
Unified software can be developed, without the need for needing to change different editions software due to log-on data difference for per money type, so as to
Improve the versatility of software design, it is to avoid the artificial maloperation that software editing is repeatedly easily caused.
When judging whether log-on data is normal, it is possible to use the mode of weighted sum verification, specifically, the startup that will be read
Data are weighted and calculate, and then the numerical value by weighted sum result of calculation with check bit storage in EEPROM is compared, school
The memory space of special storage check value of the position for arranging in addition to log-on data in EEPROM is tested, before the device power of storage
During power-off, the weighted sum of the operation setup parameter being stored in EEPROM, if judged result is consistent, illustrates log-on data
Normally, damage otherwise there occurs.Certainly, because weighted sum takes storage, position is more, and check value here can also be weighted sum
The numerical value of last bit is taken, accordingly, weighted sum result of calculation also takes the numerical value of last bit and check value is compared, or this
In check value can be a setting position numerical value, the such as place value should be AA, then inquire about the setting position in verification
Whether numerical value is AA verifying.The application is not limited with this embodiment yet and judges the whether normal mode of log-on data.
Based on the anti-Improvement of device parameter set forth above, the application also proposes a kind of equipment, as shown in Fig. 2 this sets
For including MCU 21, EEPROM 22 and backup units 23；EEPROM 22 is used for the log-on data of storage device；MCU 21 has
Body includes read-write cell 211, judging unit 212 and start unit 213；Read-write cell 211 is used for after device power, reads
The log-on data of 22 memory storages of EEPROM；Judging unit 212 is used for judging whether log-on data is normal；Backup units 23 are used for
To judge that normal log-on data is backed up through judging unit during device power；Judge log-on data not in judging unit 212
When normal, judge through judging unit when read-write cell 211 is additionally operable to once go up electricity from before reading equipment in backup units 23 normal
When the startup number that backs up write in EEPROM 22 so that equipment is started based on backup log-on data；Wherein, log-on data is
During device powers down, the operation setup parameter that is stored in EEPROM.
Here backup units 23 can be the memory element of the MCU of equipment；Or, for the backup region in EEPROM 22；
Or, being single memory device.
Judging unit 212 can specifically include weighting block and comparison module；Weighting block is used for the startup number that will be read
According to being weighted and calculate；Comparison module is used for the numerical value by weighted sum result of calculation with check bit storage in EEPROM to be compared
Compared with judging whether comparative result is consistent；If consistent, illustrate that log-on data is normal, otherwise abnormal.Among these, check bit storage
Numerical value for device power a front power-off when, be stored in EEPROM operation setup parameter weighted sum.
Based on the anti-Improvement of above-mentioned device parameter and equipment, the application also proposes a kind of air-conditioner, the air-conditioner bag
Include MCU, backup units and EEPROM；EEPROM is used for the log-on data for storing air-conditioner；MCU includes read-write cell, judges list
Unit and start unit；Read-write cell is used for the log-on data for reading EEPROM memory storages on air-conditioner after electricity；Judging unit is used
In judging whether log-on data is normal；Backup units are used for judge normal log-on data through judging unit during electricity on air-conditioner
Backed up；When judging unit judges that log-on data is abnormal, read-write cell is additionally operable to read air-conditioner from backup units
The front log-on data backed up when judging normal through judging unit when once going up electricity is simultaneously write in EEPROM, so that air-conditioner is based on standby
Part log-on data starts；Wherein, when log-on data is air-conditioner power-off, the operation setup parameter being stored in EEPROM.
Backup units can be the memory element of the MCU of air-conditioner；Or, the backup region in for EEPROM；Or, being independent
Memory device.
Judging unit can specifically include weighting block and comparison module；Weighting block is used for entering the log-on data of reading
Row weighted sum is calculated；Comparison module is used for the numerical value by weighted sum result of calculation with check bit storage in EEPROM and is compared,
Judge whether comparative result is consistent；Wherein, when the numerical value of check bit storage is a front power-off of electricity on air-conditioner, it is stored in
The weighted sum of the operation setup parameter in EEPROM.
It should be noted that described above is not limitation of the present invention, the present invention is also not limited to the example above,
Change, remodeling, interpolation or replacement that those skilled in the art are made in the essential scope of the present invention, also should
Belong to protection scope of the present invention.
Claims (9)
1. the anti-Improvement of device parameter, it is characterised in that include：
After device power, the log-on data of EEPROM memory storages is read；
Judge whether the log-on data is normal；If so,
Back up the log-on data；If it is not,
During by once going up electricity before the equipment, the log-on data backed up after judging normally is write in the EEPROM, so that institute
The data that states in the equipment execution EEPROM start the equipment；
Wherein, when the log-on data is the device powers down, the operation setup parameter being stored in the EEPROM.
2. the anti-Improvement of device parameter according to claim 1, it is characterised in that described will once go up before the equipment
When electric, the log-on data backed up after judging normally writes in the EEPROM, specially：
The startup that backs up after judging normally when electricity is once gone up before reading the equipment in the memory element of the MCU of the equipment
Data；
The log-on data of the backup is write in the EEPROM；Or,
The startup number backed up after judging normally when once going up electricity before reading the equipment from the backup region of the EEPROM
According to；
The log-on data of the backup is write in the EEPROM.
3. the anti-Improvement of device parameter according to claim 1, it is characterised in that the judgement log-on data is
No normal, specially：
The log-on data for reading is weighted and is calculated；
Numerical value of the weighted sum result of calculation with check bit storage in the EEPROM is compared；
Judge whether comparative result is consistent；
Wherein, when the numerical value of the check bit storage is a front power-off of the device power, it is stored in the EEPROM
Operation setup parameter weighted sum.
4. a kind of equipment, including MCU and EEPROM；The EEPROM is used for the log-on data for storing the equipment；Its feature exists
In the equipment also includes backup units；
The MCU includes read-write cell, judging unit and start unit；
The read-write cell, for electricity on said device after, read the log-on data of the EEPROM memory storages；
The judging unit, for judging whether the log-on data is normal；
The backup units, standby for will judge that normal log-on data is carried out through the judging unit during device power
Part；
When the judging unit judges that the log-on data is abnormal, the read-write cell is additionally operable to from the backup units
The startup number that backs up when judging normal through the judging unit when once going up electricity before reading the equipment simultaneously writes the EEPROM
In, so that the equipment is started based on the backup log-on data；
Wherein, when the log-on data is the device powers down, the operation setup parameter being stored in the EEPROM.
5. equipment according to claim 4, it is characterised in that the backup units are the storage list of the MCU of the equipment
Unit；Or,
The backup units are the backup region in the EEPROM.
6. equipment according to claim 4, it is characterised in that the judging unit includes weighting block and comparison module；
The weighting block, for being weighted the log-on data for reading and calculating；
The comparison module, is compared for the numerical value by weighted sum result of calculation with check bit storage in the EEPROM,
Judge whether comparative result is consistent；
Wherein, when the numerical value of the check bit storage is a front power-off of the device power, it is stored in the EEPROM
Operation setup parameter weighted sum.
7. a kind of air-conditioner, including MCU and EEPROM；The EEPROM is used for the log-on data for storing the air-conditioner；Which is special
Levy and be, the air-conditioner also includes backup units；
The MCU includes read-write cell, judging unit and start unit；
The read-write cell, after electric on the air-conditioner, reads the log-on data of the EEPROM memory storages；
The judging unit, for judging whether the log-on data is normal；
The backup units, standby for will judge that normal log-on data is carried out through the judging unit during electricity on the air-conditioner
Part；
When the judging unit judges that the log-on data is abnormal, the read-write cell is additionally operable to from the backup units
The log-on data that backs up when judging normal through the judging unit when once going up electricity before reading the air-conditioner simultaneously writes described
In EEPROM, so that the air-conditioner is started based on the backup log-on data；
Wherein, when the log-on data is the air-conditioner power-off, the operation setup parameter being stored in the EEPROM.
8. air-conditioner according to claim 7, it is characterised in that the backup units are depositing for the MCU of the air-conditioner
Storage unit；Or,
The backup units are the backup region in the EEPROM.
9. air-conditioner according to claim 7, it is characterised in that the judging unit includes weighting block and compares mould
Block；
The weighting block, for being weighted the log-on data for reading and calculating；
The comparison module, is compared for the numerical value by weighted sum result of calculation with check bit storage in the EEPROM,
Judge whether comparative result is consistent；
Wherein, when the numerical value of the check bit storage is a front power-off of electricity on the air-conditioner, the EEPROM is stored in
In operation setup parameter weighted sum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610895388.5A CN106503542B (en) | 2016-10-14 | 2016-10-14 | Equipment parameter rewriting prevention method, equipment and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610895388.5A CN106503542B (en) | 2016-10-14 | 2016-10-14 | Equipment parameter rewriting prevention method, equipment and air conditioner |
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| Publication Number | Publication Date |
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| CN106503542A true CN106503542A (en) | 2017-03-15 |
| CN106503542B CN106503542B (en) | 2020-11-27 |
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| CN109558083A (en) * | 2018-11-27 | 2019-04-02 | 惠科股份有限公司 | Prevent the method and memory that code is written over |
| CN110347430A (en) * | 2019-07-12 | 2019-10-18 | 四川虹美智能科技有限公司 | A kind of parameter of electric machine read method, apparatus and system |
| CN110865906A (en) * | 2019-11-05 | 2020-03-06 | 中国第一汽车股份有限公司 | Motor initial position angle storage method and device, vehicle and storage medium |
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|---|---|
| CN106503542B (en) | 2020-11-27 |
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