CN101826040A - Method and system for automatically detecting and restoring memory equipment - Google Patents
Method and system for automatically detecting and restoring memory equipment Download PDFInfo
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- CN101826040A CN101826040A CN200910079146A CN200910079146A CN101826040A CN 101826040 A CN101826040 A CN 101826040A CN 200910079146 A CN200910079146 A CN 200910079146A CN 200910079146 A CN200910079146 A CN 200910079146A CN 101826040 A CN101826040 A CN 101826040A
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Abstract
The invention discloses a method for automatically detecting and restoring memory equipment, which is used for automatically detecting and restoring the memory equipment in embedded equipment. The method comprises the following steps of: monitoring reading and writing operation of the memory equipment in real time, and backing up data corresponding to the reading and writing operation of the memory equipment; judging whether the reading and writing operation of the memory equipment causes data errors or not; covering error data by using corresponding backup data to restore and recover the data if data errors occur; and keeping monitoring whether the reading and writing operation of the memory equipment causes data errors or not if no data errors occur. Correspondingly, the invention also discloses a system for automatically detecting and restoring the memory equipment. By using the method and the system, data errors occurring in the memory equipment can be monitored in real time, and data in the memory region can be efficiently protected in real time.
Description
Technical field
The present invention relates to the field of information security technology of computer data, more particularly, relate to the method and system that a kind of memory device detects and repairs automatically.
Background technology
Embedded system is a kind of dedicated computer system, and is application-centered, based on computer technology, but and the software and hardware cutting, and systemic-function, reliability, cost, volume, power consumption had strict demand.In many embedded devices, the storage inside system is a very crucial part, if storage system breaks down or inadequate resource, then can cause whole embedded device to crash, even again can't use.
In the present most embedded device, high-performance and jumbo memory device have been extensive use of, such as Flash Memory (flash memory), EEPROM (Electrically Erasable Programmable ReadOnly Memory, EEPROM (Electrically Erasable Programmable Read Only Memo)), hard disk, disk etc., these memory devices all have certain capacity can stored programme, data etc., and after outage, exist wherein program and data can not lose, can reuse in the opening device next time.
Existing embedded device is to use hard disk as main memory device more, and the major issue that many users face is because the losing of the computer data that hard disk operation is brought.Operation to hard disk in the embedded device application process also has mechanically actuated except electric power operation.Be understandable that because natural cause or human factor in these operations, hard disk may break down when operation, this has increased the probability of generation error in data (comprising loss of data, corrupted data) greatly.Because error in data takes place easily, a lot of embedded systems are used read-only file systems, though safety has like this been lost the dirigibility of system.At present there has been the multiple method that memory device carries out memory protection that is used for, for example:
The method of utilizing the mirror image in hard-disc storage district to back up: this method can back up and recover the data in the storer fast; and can guarantee that data can be not destroyed; but this method is the protection of carrying out in the set time scope; if mistake appears in system in some unpredictable time periods; and do not arrive the set time of backup image this moment, then the mistake in the system can not be repaired.
The method of utilizing hardware mechanisms to protect: this method is protected the data the hard disk on the aspect of hardware and is recovered; can recover the various loss of datas of having a mind to or being not intended to cause, especially disconnect suddenly that hardware connects or hardware effort abnormal the time.But this method still lacks the protection for the accident in the data transmission procedure, occurs at random in system can causing unpredictable mistake equally under the situation of mistake.
Utilize start traverse scanning memory device to protect: this method is used comparatively general on PC, can guarantee effectively that the PC system of starting shooting each time afterwards can normally enable.But; because PC is more looser than embedded environment; PC is not supported the inspection at once after mistake appears in system simultaneously; that is to say and have only when PC is each starts shooting; just can find mistake; therefore this is a kind of mode of passive wait, is not suitable for embedded system protection critical data.
As seen, the storage system of current embedded device is in operation and still has a lot of shortcomings, particularly: if memory device mistake occurs in some unpredictable time periods, especially the accident in the data transmission procedure also can guarantee thoroughly to find wrong without any mechanism and repairs accordingly and recover.
Summary of the invention
In view of this, the method and system that the embodiment of the invention provides a kind of memory device to detect and repair automatically can be monitored the error in data that occurs in the memory device at any time, carries out real-time guard efficiently for the data in the storage area.
The embodiment of the invention is achieved in that
The read-write operation of monitoring memory device backs up the corresponding data of read-write operation with memory device in real time;
Whether the read-write operation of judging described memory device causes error in data;
If the generation error in data then covers the data that make a mistake by corresponding Backup Data and carries out the reparation and the recovery of data;
If error in data does not take place, whether the read-write operation that then continues the monitoring memory device causes error in data.
Preferably, the read-write operation of described monitoring memory device can trigger in the following manner:
When the read-write operation of described memory device was triggered, described monitoring was triggered automatically; Perhaps, select to trigger described monitoring by user's input control.
Preferably, the read-write operation of described monitoring memory device comprises:
According to the default time interval, the corresponding data of the described memory device read-write operation of timing scan perhaps, when the read-write operation of described memory device is triggered, scan the corresponding data of memory device read-write operation automatically.
Further, the corresponding data of the read-write operation of described backup and memory device comprise:
According to the default time interval, regularly carry out data backup, perhaps, when the read-write operation of described memory device is triggered, carry out data backup automatically.
Preferably, described scanning triggers by user's input control.
Preferably, described data backup triggers by user's input control.
Among the present invention, described error in data comprises: loss of data and/or corrupted data.
According to embodiments of the invention, the system that a kind of memory device detects and repairs is automatically also disclosed, be used for the memory device of embedded device is detected automatically and repairs, comprising:
The operation control module, the read-write operation that is used to control described memory device is monitored, according to backup of monitoring result control data and/or reparation;
Real-time monitoring means is used for monitoring in real time the read-write operation of memory device, judges whether the read-write operation of described memory device causes error in data, and monitoring result is fed back to the operation control module;
The data backup unit is used to receive the backup instruction of described operation control module, the corresponding data of read-write operation of backup and memory device;
The data repair unit is used to receive the reparation instruction of described operation control module, covers the data that make a mistake by corresponding Backup Data in the described data backup unit and carries out the reparation and the recovery of data.
Further, described system also comprises:
User input unit is used for artificial input control and selects to trigger real-time monitoring means, and user input instruction is sent to the operation control module.
Preferably, described real-time monitoring means comprises:
The first real-time monitoring means is used for according to the default time interval, timing scan and the corresponding data of described memory device read-write operation;
The second real-time monitoring means is used for when the read-write operation of described memory device is triggered, and automatically the corresponding data of memory device read-write operation is scanned.
Preferably, described data backup unit comprises:
The first data backup unit was used for according to the default time interval, regularly carried out data backup;
The second data backup unit is used for when the read-write operation of described memory device is triggered, and carries out data backup automatically.
Prior art is compared, and the technical scheme that the embodiment of the invention provides has the following advantages and characteristics:
At first, the embodiment of the invention is monitored in real time at the read-write operation process of memory device, by backup to the corresponding data of read-write operation, carry out the automatic protection of data, when monitoring generation storage error in data, make response at once, trigger the reparation of corresponding data automatically, avoid occurring because the error in data that loss of data or damage cause;
And the embodiment of the invention also provides the user artificially to activate the memory device function of monitoring in real time, can realize the activation of this function by simple terminal, and technology realizes simple, no technology barrier.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use among the embodiment below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The flow chart of steps of the method embodiment that Fig. 1 detects automatically and repairs for a kind of memory device of the present invention;
Fig. 2 is the method step process flow diagram that a media player detects automatically and repairs;
Fig. 3 utilizes the user of the media player of corresponding figures 2 to import control function, the flow chart of steps that detects automatically and repair;
Fig. 4 is the structured flowchart of the automatic system embodiment that detects and repair of a kind of memory device of the present invention;
Fig. 5 is the UML sequence chart of the explanation embodiment of the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described.
Core idea of the present invention is, monitors in real time at the read-write operation process of the storage system in the embedded device, and the corresponding data in the read-write operation process protected automatically, and when the storage error in data takes place when, the reparation of trigger data immediately.The present invention can be when monitoring storage system, timely crucial data of backup, and in repair process, preferentially utilize backup file to recover crucial data.
With reference to figure 1, show the flow chart of steps of the automatic method embodiment that detects and repair of a kind of memory device of the present invention, specifically can may further comprise the steps:
Step 101, monitor the read-write operation of memory device in real time, the corresponding data of read-write operation of backup and memory device;
Step 102, judge whether the read-write operation of described memory device causes error in data, if then execution in step 103; If not, execution in step 104 then;
If error in data takes place step 103, then cover the data that make a mistake and carry out the reparation and the recovery of data by corresponding Backup Data;
If error in data does not take place step 104, whether the read-write operation that then continues the monitoring memory device causes error in data.
Hard disk failure can cause catastrophic consequence, for the user, commercial user particularly, data are only part the most expensive in the system, they need be can to may occur since the error in data that fault produces monitor in real time.
Usually our hard disk failure faced can be divided into two big classes: unpredictable fault and fault predictive.Hard disk failure can cause the data relevant with hard disk read-write operations to make a mistake, and comprises losing or damaging of data.
Unpredictable fault refers in the hard disk operational process herein, because the unexpected power down of peripheral circuit, is easy to cause losing or damaging of hard disc data.
Fault predictive has before hard disk can not be worked fully, the characteristics that its relevant parameters can change in time.Comprise software fault and hardware fault in this type of fault.Many mechanical faults all are counted as typical fault predictive.According to these characteristics, can carry out failure prediction, analyze and offer suggestions by the attribute that real time monitoring is monitored hard disk, thereby taken precautions against.In real-time observation process, by the observation circuit of hard disk and the monitoring of software on the main frame ruuning situation of hard disk and historical record and default safety value are analyzed, relatively, when situation about occurring beyond the safety value scope, can give a warning from the trend user, and more advanced technology can also be reminded network manager's attention.
Whether the read-write operation of judging described memory storage in the described step 102 causes error in data, can judge by means of cyclic check code (CRC sign indicating number) usually.The CRC sign indicating number is a kind of error check code the most frequently used in the data communication field, during practical application, dispensing device calculates crc value and together sends to receiving trap with data, receiving trap recomputates CRC to the data of receiving and compares with the CRC that receives, if two crc value differences illustrate that then mistake appears in data communication.Carry out the detailed process that error in data is judged about using the CRC sign indicating number, belong to the known technology of this area professional and technical personnel, the present invention no longer gives unnecessary details at this.
Memory device provided by the invention detects and repair mechanism automatically; can monitor the error in data that may occur in the memory device at any time; simultaneously the corresponding data in the read-write operation process is carried out the automated back-up protection; automatically reduce the travelling speed of hard disk; the significant data file is dumped to other safe sector, even file backup is arrived other hard disk or memory device.When the storage error in data takes place when, the reparation of trigger data immediately.As seen, the present invention can take into account the error in data that above-mentioned unpredictable fault and fault predictive cause, thus for the data in the storage area carry out efficiently, real-time guard easily.
In order to increase the operability of monitoring in real time for hard disk failure; can increase the intervention of user's operation; input control by the user is monitored for the scanning of hard disk; and before fault takes place; send the notice of reminding the user ID data; the user manually controls the backup critical file, carries out data protection.
For the security requirement higher system, it is especially important that the mistake that real-time monitoring system may occur at any time just seems.Therefore; can be by being provided with when the read-write operation of memory device is triggered, the corresponding data to the memory device read-write operation scans automatically, and the backup of carrying out corresponding data automatically; memory device is carried out real-time monitoring and protection, improve the security and the stability of system.
For the lower system of security requirement, then can select the corresponding data of timing scan memory device read-write operation, the error in data that may occur is at any time monitored.The frequency interval of scanning can set in advance according to the action need of reality, and at a fixed time at interval, system can scan read-write operation process memory device and memory device automatically.Simultaneously, at a fixed time in, the backup that memory device carries out corresponding data is set.
In order to make those skilled in the art understand the present invention better, below with one simple and the exemplary media player is an example, describe described the memory device monitoring and the method for repairing automatically in detail.
With reference to Fig. 2, show the method step process flow diagram that a media player is monitored automatically and repaired, specifically can may further comprise the steps:
Corresponding data of step 203, backup and read-write operation or according to user's definition backup critical data, the process of this backup also can be divided into: timed backup and trigger-type backup, that is to say in fixed intervals or triggering read-write operation, system can corresponding the reading and writing data of automated back-up distinguish or critical data district data, in order further to improve safety of data, Backup Data can be stored on another piece non-volatile memory device;
K200 shown in the figure, K201 represent memory block and residing another memory block of backup file of periodic monitor control respectively;
The error in data problem appears in step 205, discovery memory block, then sends information to the user: in the memory block of this media player of prompting user error in data takes place, need carry out data repair;
Above-mentioned media player is monitored and repair process automatically, is to trigger automatically to carry out when this media player carries out read-write operation or in Preset Time.In the practical application, media player can possess this function of monitoring and repairing automatically separately, also can import the selectable punction that control triggers media player monitoring in real time and repairs for this media player setting by the user simultaneously, after making that media player is opened, the user can monitor the data in the media player stores district at any time as required in real time, and in time repairs the data that make a mistake.Fig. 3 has provided and has utilized the user of this media player to import control function, carries out the flow chart of steps of error in data scanner uni data backup:
In the actual application, can select for the file in the memory block of needs scanning, for example: specify concrete file according to user's appointment read path.
K300 shown in the figure, K301 represent memory block and residing another memory block of backup file according to the control of user's Input Monitor Connector respectively;
Data problem appears in step 305, discovery memory block, then send the information of finding misdata to the user, and the prompting user prepares to carry out data repair;
Equally, thisly import by the user that control triggers monitoring in real time and the selectable punction repaired also can separately exist in the media player.Like this, the user can activate the monitoring function of media player artificially at any time, user's outside input control can be adopted the simple terminal of similar telepilot, external button, switch and so on, needn't use the equipment such as keyboard of complicated operation, has reached simple effect.
With reference to figure 4, show the structured flowchart of the system embodiment of automatic monitoring of a kind of memory device of the present invention and reparation, specifically can comprise with lower unit:
Real-time monitoring means 402, the operation of this unit real-time monitoring system, send operations such as read-write (these operations have caused the mistake of memory device) in case find the operation control module to storer, this unit carries out error scanning to the part of making modification at once, informs result's feedback of operation control module 401 these scannings simultaneously;
Generally, system can each critical data that keeps a backup further increase the reliability of system as redundancy in internal memory and another piece memory block;
Preferably, according to the needs of system, among the native system embodiment, can also comprise:
User input unit, the user can intervene the monitoring and the reparation of data in the memory block artificially by this unit, the result of user's selection input directly delivers to the operation control module, decides next step monitoring and repair process in case of necessity by the operation control module then.
Need to prove that under the situation that the user intervenes artificially to the monitoring and the reparation of memory block, monitoring means is monitored any input of user simultaneously in real time, judge whether because these operations cause the mistake of data in the memory block.
Particularly, described real-time monitoring means further comprises:
The first real-time monitoring means is used for according to the default time interval, timing scan and the corresponding data of described memory device read-write operation;
The second real-time monitoring means is used for when the read-write operation of described memory device is triggered, and automatically the corresponding data of memory device read-write operation is scanned.
And preferably, described data backup unit further comprises:
The first data backup unit was used for according to the default time interval, regularly carried out data backup;
The second data backup unit is used for when the read-write operation of described memory device is triggered, and carries out data backup automatically.
UML (Unified Modeling Language, unified modeling language) sequence chart is a kind of common graphic technique, and its fundamental purpose is the definition sequence of events, produces the output of some hope.Most of sequence chart can be represented what message transmitted between the object of a system, and their orders of taking place.Sequence chart is transmitted information according to level and vertical dimension: vertical dimensions is represented message/call the time series of generation from top to down, and horizontal dimensions is from left to right represented the object instance that message sends to.
Utilize the system of automatic monitoring of above-mentioned memory device and reparation, further specify the realization flow of native system embodiment below with the sequence chart of UML, as shown in Figure 5, can learn may further comprise the steps:
Step 501 (a), operation control module send initiation message to real-time monitoring means, and real-time monitoring means is started;
Step 501 (b), operation control module send message to user input unit, and user input unit is started, and the user can pass through outside input control, select whether to monitor the read-write operation of user's generation subsequently;
Step 502, the message of monitoring means transmission are in real time monitored the data file in the storage body region on the hard disk in real time to the storage body region;
Perhaps, user input unit sends message to the storage body region, according to user's input control, the file of storing appointment in the body region is carried out trigger sweep;
Step 503, operation control module send message to the data backup unit, when Fixed Time Interval or the triggering of any read-write operation, and the log-on data backup units;
Perhaps, the operation control module sends message to the data backup unit, if the user need carry out backup operation, then controls according to user's input, then the log-on data backup units;
Step 504, data backup unit send message to the storage body region, in the storage body region, obtain the respective backup data by the data backup unit;
Step 505, data backup unit send message to the data backup zone, and the data backup unit arrives the data backup zone with the respective data storage of obtaining, and backs up;
Step 506, the monitoring result reflection of monitoring means in real time, mistake appears in data in the storage body region;
Step 507, real-time monitoring means transmitting supervisory result feed back to the operation control module, inform that error in data takes place in operation control module memory block;
Step 508, operation control module send message to the data backup zone, obtain the information of respective backup data;
Step 509, operation control module send message to data recovery unit, and data recovery unit is started;
Step 510, data recovery unit send it back should give the operation control module, preferentially cover the data division that makes a mistake by the respective backup data of obtaining in the data recovery unit, carry out the recovery of misdata, and the monitoring of notice operation control module epicycle, repair process end after recovery finishes.
For system embodiment, because it is substantially corresponding to method embodiment, so description is fairly simple, corresponding part gets final product referring to the part explanation of method embodiment, and the present invention no longer gives unnecessary details at this.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined herein General Principle can realize under the situation that does not break away from the spirit or scope of the present invention in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (11)
1. the method that memory device detects and repairs automatically is used for the memory device of embedded device is detected automatically and repairs, and it is characterized in that described method comprises:
The read-write operation of monitoring memory device backs up the corresponding data of read-write operation with memory device in real time;
Whether the read-write operation of judging described memory device causes error in data;
If the generation error in data then covers the data that make a mistake by corresponding Backup Data and carries out the reparation and the recovery of data;
If error in data does not take place, whether the read-write operation that then continues the monitoring memory device causes error in data.
2. method according to claim 1 is characterized in that, the read-write operation of described monitoring memory device can trigger in the following manner:
When the read-write operation of described memory device was triggered, described monitoring was triggered automatically;
Perhaps, select to trigger described monitoring by user's input control.
3. method according to claim 1 is characterized in that, the read-write operation of described monitoring memory device comprises:
According to the default time interval, the corresponding data of the described memory device read-write operation of timing scan, perhaps,
When the read-write operation of described memory device is triggered, automatically the corresponding data of memory device read-write operation are scanned.
4. method according to claim 1 is characterized in that, the corresponding data of the read-write operation of described backup and memory device comprise:
According to the default time interval, regularly carry out data backup, perhaps,
When the read-write operation of described memory device is triggered, carry out data backup automatically.
5. method according to claim 3 is characterized in that, described scanning triggers by user's input control.
6. method according to claim 4 is characterized in that, described data backup triggers by user's input control.
7. method according to claim 1 is characterized in that, described error in data comprises: loss of data and/or corrupted data.
8. the system that memory device detects and repairs automatically is used for the memory device of embedded device is detected automatically and repairs, and it is characterized in that, comprising:
The operation control module, the read-write operation that is used to control described memory device is monitored, according to backup of monitoring result control data and/or reparation;
Real-time monitoring means is used for monitoring in real time the read-write operation of memory device, judges whether the read-write operation of described memory device causes error in data, and monitoring result is fed back to the operation control module;
The data backup unit is used to receive the backup instruction of described operation control module, the corresponding data of read-write operation of backup and memory device;
The data repair unit is used to receive the reparation instruction of described operation control module, covers the data that make a mistake by corresponding Backup Data in the described data backup unit and carries out the reparation and the recovery of data.
9. system according to claim 8 is characterized in that, described system also comprises:
User input unit is used for artificial input control and selects to trigger real-time monitoring means, and user input instruction is sent to the operation control module.
10. system according to claim 8 is characterized in that, described real-time monitoring means comprises:
The first real-time monitoring means is used for according to the default time interval, timing scan and the corresponding data of described memory device read-write operation;
The second real-time monitoring means is used for when the read-write operation of described memory device is triggered, and automatically the corresponding data of memory device read-write operation is scanned.
11. system according to claim 8 is characterized in that, described data backup unit comprises:
The first data backup unit was used for according to the default time interval, regularly carried out data backup;
The second data backup unit is used for when the read-write operation of described memory device is triggered, and carries out data backup automatically.
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| CN200910079146A CN101826040A (en) | 2009-03-03 | 2009-03-03 | Method and system for automatically detecting and restoring memory equipment |
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| CN200910079146A CN101826040A (en) | 2009-03-03 | 2009-03-03 | Method and system for automatically detecting and restoring memory equipment |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103310506A (en) * | 2012-03-15 | 2013-09-18 | 深圳光启创新技术有限公司 | Communication method of access control system |
| CN107526650A (en) * | 2017-09-07 | 2017-12-29 | 郑州云海信息技术有限公司 | A kind of TCAM error scannings and the method repaired |
| CN109800211A (en) * | 2019-04-17 | 2019-05-24 | 深圳市先河系统技术有限公司 | Control method, system and the relevant device of decentralization storage |
| CN110515769A (en) * | 2019-08-15 | 2019-11-29 | 苏州浪潮智能科技有限公司 | A kind of backup processing method, device and electronic equipment and readable storage medium storing program for executing |
| CN111176900A (en) * | 2019-12-30 | 2020-05-19 | 浪潮电子信息产业股份有限公司 | Distributed storage system and data recovery method, device and medium thereof |
| CN111199701A (en) * | 2020-03-17 | 2020-05-26 | 上海仰邦科技股份有限公司 | Synchronous control system of LED dot matrix display screen and self-checking method thereof |
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2009
- 2009-03-03 CN CN200910079146A patent/CN101826040A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103310506A (en) * | 2012-03-15 | 2013-09-18 | 深圳光启创新技术有限公司 | Communication method of access control system |
| CN107526650A (en) * | 2017-09-07 | 2017-12-29 | 郑州云海信息技术有限公司 | A kind of TCAM error scannings and the method repaired |
| CN107526650B (en) * | 2017-09-07 | 2021-07-02 | 郑州云海信息技术有限公司 | TCAM error scanning and repairing method |
| CN109800211A (en) * | 2019-04-17 | 2019-05-24 | 深圳市先河系统技术有限公司 | Control method, system and the relevant device of decentralization storage |
| CN109800211B (en) * | 2019-04-17 | 2019-08-13 | 深圳市先河系统技术有限公司 | Control method, system and the relevant device of decentralization storage |
| CN110515769A (en) * | 2019-08-15 | 2019-11-29 | 苏州浪潮智能科技有限公司 | A kind of backup processing method, device and electronic equipment and readable storage medium storing program for executing |
| CN111176900A (en) * | 2019-12-30 | 2020-05-19 | 浪潮电子信息产业股份有限公司 | Distributed storage system and data recovery method, device and medium thereof |
| CN111199701A (en) * | 2020-03-17 | 2020-05-26 | 上海仰邦科技股份有限公司 | Synchronous control system of LED dot matrix display screen and self-checking method thereof |
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