Computer data security automatic backup system
By introducing data monitoring, backup triggering, data replication, management and security verification modules into the computer data backup system, the problems of untimely, incomplete and insufficient data backup in the existing technology are solved, and data efficiency and security are achieved. and reliable backup.
Patent Information
- Application Number
- CN202411225379.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-03
- Publication Date
- 2024-12-27
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The existing computer data backup system cannot monitor data changes in real time, cannot accurately identify key data, the backup trigger mechanism is imperfect, the data backup and management methods are not efficient enough, and the security verification measures are insufficient, resulting in data backup not being timely and incomplete, and the key data cannot be obtained. Effective protection, the security of backup data cannot be guaranteed, which can easily lead to data loss.
A computer data security automatic backup system is designed, including data monitoring module, backup trigger module, data backup module, backup management module and security verification module. Through the data change monitoring unit and the key data identification unit, data changes are monitored in real time and identified key data. , the timing trigger unit and event trigger unit flexibly trigger backup, the data copy unit and the compression encryption unit perform data copying and encryption processing, the task management unit, the history query unit and the data recovery unit perform backup management and recovery, the identity verification unit and the access control The unit performs security verification.
Realize real-time monitoring and timely backup of computer data, ensure that key data is protected in a timely manner, provide flexible backup triggering mechanisms, save storage space and improve data security, enhance the security and management efficiency of backup data, and prevent illegal access. Ensure data integrity and recovery.
Smart Images
Figure CN119201544A_ABST
Abstract
Description
Technical Field
[0001] The present invention belongs to the technical field of computer systems, and in particular relates to a computer data security automatic backup system. Background Art
[0002] With the rapid development of computer technology, the amount of data stored in computers is increasing, and data security has become critical. However, computer data may be lost or damaged due to hardware failure, software error, virus attack, human error and other reasons.
[0003] In the prior art, the safe backup of computer data is of vital importance. However, the current backup system may have some problems, such as the inability to monitor data changes in real time, the inability to accurately identify key data, the imperfect backup trigger mechanism, the inefficient data backup and management methods, and the insufficient security verification measures. These problems may lead to untimely and incomplete data backup, ineffective protection of key data, and the inability to ensure the security of backup data. These problems will make it impossible for the computer system to perform a complete backup of data, which may easily lead to data loss. Summary of the invention
[0004] The purpose of the present invention is to provide a computer data security automatic backup system, aiming to solve the problems in the prior art such as the inability to monitor data changes in real time, the inability to accurately identify key data, the imperfect backup trigger mechanism, the inefficient data backup and management method, and the insufficient security verification measures. These problems may lead to untimely and incomplete data backup, ineffective protection of key data, and the inability to ensure the security of backup data. These problems will make it impossible for the computer system to perform a complete backup of data, which may easily lead to the problem of data loss.
[0005] To achieve the above object, the present invention provides the following technical solutions:
[0006] A computer data security automatic backup system comprises: a data monitoring module, a backup trigger module, a data backup module, a backup management module and a security verification module, wherein the data monitoring module is used to monitor the changes of data in the computer system in real time, the backup trigger module is used to perform backup operations according to the monitoring results of the data monitoring module, the data backup module is used to copy the data to be backed up to a designated storage device, the backup management module is used to manage the backed up data, and the security verification module is used to protect the security of the backup data.
[0007] As a preferred solution of the present invention, the data monitoring module is provided with a data change monitoring unit and a key data identification unit, the data change monitoring unit is used to monitor data changes, and the key data identification unit is used to identify key data in the data.
[0008] As a preferred solution of the present invention, the monitoring frequency of the data change monitoring unit is calculated as follows:
[0009]
[0010] Where: F is the data change monitoring frequency, a is the adjustment coefficient, and T is the preset time interval.
[0011] As a preferred solution of the present invention, the key data identification unit uses a specific algorithm to identify the key data in the computer system, and the calculation method is as follows:
[0012] I = bC + dD;
[0013] The calculation results show that I is the importance value of key data, b and d are weight coefficients, C is the importance factor of data type, and D is the data access frequency factor.
[0014] As a preferred solution of the present invention, a timing trigger unit and an event trigger unit are provided in the backup trigger module. The timing trigger unit is used to trigger according to a preset time point, and the event trigger unit is used to trigger a backup operation when a specific event occurs.
[0015] As a preferred solution of the present invention, a data copying unit and a compression encryption unit are provided in the data backup module. The data copying unit is used to copy data to a designated storage device, and the compression encryption unit is used to compress and encrypt the backup data.
[0016] As a preferred solution of the present invention, the compression ratio of the data compression by the compression encryption unit is calculated as follows:
[0017]
[0018] Where: R is the compression ratio, O1 is the original data size, and O2 is the compressed data size.
[0019] As a preferred scheme of the present invention, the value range of the adjustment coefficient a is 0.5-2, the sum of the weight coefficients b and d is 1, and the value range of the weight coefficient b is 0.3-0.7, the value range of the weight coefficient d is 0.3-0.7, the value range of the importance factor C of the data type and the data access frequency factor D are both 0-1, and the value range of the compression ratio R is 0.1-0.9.
[0020] As a preferred solution of the present invention, the backup management module is provided with a task management unit, a history record query unit and a data recovery unit. The task management unit is used for users to create, modify and delete backup tasks, the history record query unit is used for users to query backup history records, and the data recovery unit is used to quickly recover data.
[0021] As a preferred solution of the present invention, an identity authentication unit and an access control unit are provided in the security verification module. The identity authentication unit is used to authenticate the operating user, and the access control unit strictly controls the access to the backup data.
[0022] Compared with the prior art, the present invention has the following beneficial effects:
[0023] 1. The present invention can monitor the data changes in the computer system in real time and accurately identify key data through the data change monitoring unit and key data identification unit in the data monitoring module. This helps to timely discover data changes, ensure that important data is backed up and protected in time, and avoid losses caused by data omissions or misjudgments.
[0024] 2. In the present invention, the timing trigger unit and event trigger unit are set in the backup trigger module, so that the backup operation can be performed according to the preset time point and can be triggered in time when a specific event occurs. This flexible backup trigger mechanism can better adapt to different application scenarios and data changes, ensuring the timeliness and comprehensiveness of data backup.
[0025] 3. The data copying unit and the compression and encryption unit in the data backup module of the present invention can effectively copy the data to the designated storage device and perform compression and encryption processing, which not only saves storage space but also improves data security. The task management unit, the history query unit and the data recovery unit in the backup management module enable users to conveniently manage backup tasks, query backup history records and quickly recover data, thereby improving the efficiency of data backup and management.
[0026] 4. In the present invention, the identity authentication unit and access control unit in the security verification module are used to authenticate the operating user and strictly control the access to the backup data, which effectively prevents the intrusion and unauthorized access of illegal users, greatly enhances the security of the backup data, and protects the user's important information and privacy. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:
[0028] Figure 1 A system block diagram of a computer data security automatic backup system in the present invention;
[0029] Figure 2 This is a module structure diagram of a computer data security automatic backup system of the present invention;
[0030] Figure 3 The present invention is a flowchart of a computer data security automatic backup system. DETAILED DESCRIPTION
[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0032] Example 1
[0033] See also Figure 1-Figure 3 , the present invention provides the following technical solutions:
[0034] A computer data security automatic backup system includes: a data monitoring module, a backup trigger module, a data backup module, a backup management module and a security verification module. The data monitoring module is used to monitor the changes in data in the computer system in real time. The backup trigger module is used to perform backup operations according to the monitoring results of the data monitoring module. The data backup module is used to copy the data to be backed up to a designated storage device. The backup management module is used to manage the backed up data. The security verification module is used to protect the security of the backup data.
[0035] In a specific embodiment of the present invention, the data monitoring module is used to monitor the changes of specified data in the computer system in real time, such as the creation, modification, deletion and other operations of files; when the data monitoring module detects that the data has changed, the backup trigger module triggers the backup operation according to the preset backup strategy, and the backup strategy may include scheduled backup (such as backup at specific time points such as daily, weekly, and monthly), data volume change threshold backup (backup is performed when the data volume increases or decreases to a certain threshold), etc.; the data backup module is responsible for copying the data to be backed up to a specified backup storage device, such as an external hard disk, a network storage device or a cloud storage, etc., and the backed up data may include operating system files, application files, user personal data files, etc.; the backup management module is used to manage the backed up data, including the creation, modification, and deletion of backup tasks, the query of backup history records, the recovery of backup data, etc., and the user can set the backup parameters through this module, such as the frequency of backup, the storage location of backup, the type of backup data, etc.; the security verification module is used to ensure the security of the backup data, and before performing the backup operation, the user identity is verified, and the verification method may include password verification, fingerprint verification, facial recognition and other methods. Only the verified user can perform the backup operation.
[0036] Specifically, the data monitoring module is provided with a data change monitoring unit and a key data identification unit. The data change monitoring unit is used to monitor data changes, and the key data identification unit is used to identify key data in the data.
[0037] In this embodiment: the data change monitoring unit can monitor the changes of data in the computer system in real time, including operations such as file creation, modification, and deletion. Once data changes are detected, the backup trigger module is notified immediately; the key data identification unit can identify key data in the computer system, such as important documents, database files, etc., and focus on monitoring these key data; the data change monitoring unit continuously scans the files and data storage areas in the computer system, compares the data status at different time points, and immediately sends a notification to the backup trigger module once any data changes are found, ensuring that data changes can be detected in time, avoiding data loss due to untimely backup, improving the timeliness and accuracy of backup, and reducing the risk of data loss; the key data identification unit screens and identifies the data in the computer system according to preset key data features, such as file type, file name, storage path, etc. Once it is determined to be key data, it will be marked and monitored more frequently, increasing the backup priority of key data and enhancing the protection of important data. Under limited backup resources, the security of key data is given priority.
[0038] Specifically, the monitoring frequency of the data change monitoring unit is calculated as follows:
[0039]
[0040] Where: F is the data change monitoring frequency, a is the adjustment coefficient, and T is the preset time interval.
[0041] In this embodiment: The frequency of file creation, modification, and deletion in the computer system is determined to monitor the file creation, modification, and deletion operations in the computer system. The adjustment coefficient a can be adjusted in the range of [0.5, 2] according to the computer system performance and user needs, and T is the preset time interval; for example, if a is 1 and T is set to 10 minutes, the monitoring frequency F is once every 10 minutes.
[0042] Specifically, the key data identification unit uses a specific algorithm to identify the key data in the computer system, and the calculation method is as follows:
[0043] I = bC + dD;
[0044] The calculation results show that I is the importance value of key data, b and d are weight coefficients, C is the importance factor of data type, and D is the data access frequency factor.
[0045] In this embodiment: the key data identification unit uses a specific algorithm to identify the key data in the computer system, and the importance of the key data is calculated by the formula I=bC+dD, where b and d are weight coefficients, the sum of which is 1, and the value ranges are [0.3, 0.7] and [0.3, 0.7] respectively; C is the importance factor of the data type, and the value range is [0, 1]; D is the data access frequency factor, and the value range is also [0, 1]; for example, for important document data types, the C value may be higher; if certain data is frequently accessed, the D value will also increase accordingly, thereby increasing the possibility of the data being identified as key data.
[0046] Specifically, a timing trigger unit and an event trigger unit are provided in the backup trigger module. The timing trigger unit is used to trigger according to a preset time point, and the event trigger unit is used to trigger the backup operation when a specific event occurs.
[0047] In this embodiment: the timing trigger unit and the event trigger unit in the backup trigger module decide whether to trigger the backup operation according to the preset strategy, and once the trigger condition is met, the backup module is notified to start working; the timing trigger unit automatically triggers the backup operation according to the preset time interval, for example, backup is performed at a specific time point every day, week or month; the event trigger unit triggers the backup operation when a specific event occurs, such as system update, software installation, etc.; when the timing trigger unit is working, a timer can be set, and when the timer reaches the preset time point, a backup trigger signal is sent to the backup module. For example, the user can set an automatic backup at 12 o'clock every night, and the timing trigger unit will start the backup operation at this time point, providing the user with a predictable backup method, ensuring that the data is stably backed up and protected within a certain time period, and preventing the risk of data loss from increasing due to long-term non-backup; the event trigger unit monitors specific events in the computer system, such as system update events can be achieved by monitoring the relevant records in the system log, and software installation events can be achieved by monitoring the running status of the software installation program. Once a specific event is detected, the backup operation is immediately triggered, and a timely response can be made to events that may affect data security, thereby improving the pertinence and real-time nature of the backup.
[0048] Specifically, a data copying unit and a compression encryption unit are provided in the data backup module. The data copying unit is used to copy the data to a designated storage device, and the compression encryption unit is used to compress and encrypt the backup data.
[0049] In this embodiment: the data copying unit of the data backup module copies the data to be backed up to the designated storage device, and the compression and encryption unit processes the data to ensure the security of the data and the effective use of the storage space. The data copying unit is responsible for copying the data to be backed up to the designated storage device, and the storage device can be a local hard disk, an external storage device, a network storage device or a cloud storage, etc.; the compression and encryption unit compresses and encrypts the data during the backup process to ensure the security of the backup data and the efficient use of the storage space; the data copying unit reads the data to be backed up from the computer system according to the instructions of the backup trigger module, and copies it to the designated storage device. The storage device can be a local hard disk, an external storage device, a network storage device or a cloud storage, etc. It is responsible for copying the data that needs to be backed up to the designated storage device, ensuring that the data has a complete copy in the backup storage device, realizing redundant storage of the data. Even if there is a problem with the original data, the data can be restored from the backup storage device, thereby improving the recoverability of the data. The compression and encryption unit compresses the backup data by adopting a data compression algorithm to reduce the data volume, and then encrypts the compressed data using an encryption algorithm. Only users with the correct key can decrypt and access the backup data. By compressing the data, the storage space occupied by the backup data is reduced, thereby reducing the storage cost. At the same time, the encryption processing ensures the security of the backup data and prevents the data from being illegally accessed or stolen. During the backup process, the data is compressed and encrypted to ensure the security of the backup data and the efficient use of the storage space.
[0050] Specifically, the compression ratio of the compression encryption unit for data compression is calculated as follows:
[0051]
[0052] Where: R is the compression ratio, O1 is the original data size, and O2 is the compressed data size.
[0053] In this embodiment: the compression encryption unit compresses the backup data, and the compression ratio is calculated by the formula Determine, where O1 is the original data size, O2 is the compressed data size, and the compression ratio ranges from [0.1, 0.9], depending on the type and size of the data; at the same time, the compressed data is encrypted using advanced encryption algorithms to ensure that only authorized users can access the backup data.
[0054] Specifically, the adjustment coefficient a ranges from 0.5 to 2, the sum of the weight coefficients b and d is 1, the weight coefficient b ranges from 0.3 to 0.7, the weight coefficient d ranges from 0.3 to 0.7, the data type importance factor C and the data access frequency factor D range from 0 to 1, and the compression ratio R ranges from 0.1 to 0.9.
[0055] Specifically, the backup management module is provided with a task management unit, a history record query unit and a data recovery unit. The task management unit is used for users to create, modify and delete backup tasks, the history record query unit is used for users to query backup history records, and the data recovery unit is used to quickly recover data.
[0056] In this embodiment: the task management unit, history query unit and data recovery unit of the backup management module provide users with convenient backup task management and data recovery functions. Users can use the management module to understand the execution status of backup tasks at any time and restore the backed up data when needed. The task management unit creates, modifies, deletes and other operations on backup tasks, and users can customize backup tasks according to their own needs; the history query unit allows users to query backup history records and understand the execution status of backup tasks; when necessary, users can use the data recovery unit to quickly restore backed up data; the task management unit can provide a user interface, through which users can set the parameters of backup tasks, such as backup time, backup data type, storage device, etc. At the same time, users can modify and delete the created backup tasks, providing users with a flexible backup task management method to meet the different needs of different users The backup needs in different scenarios can be met, and backup tasks can be created, modified, deleted, and other operations can be performed on them. Users can customize backup tasks according to their own needs; the history query unit records the execution time of each backup task, the amount of backed up data, the backup status, and other information, and provides a query interface through which users can query the backup history records within a specific time period. Users can view the execution history of backup tasks at any time to understand the status of data backup, so as to discover problems in a timely manner and take corresponding measures, allowing users to query backup history records and understand the execution status of backup tasks; the data recovery unit provides a data recovery interface, and users can select the backup version to be restored, and then read the corresponding data from the backup storage device and restore it to the computer system. When data is lost or damaged, users can easily restore data from the backup storage device to reduce data loss. When necessary, users can quickly restore backed up data through this unit.
[0057] Specifically, an identity authentication unit and an access control unit are provided in the security authentication module. The identity authentication unit is used to authenticate the operating user, and the access control unit strictly controls the access to the backup data.
[0058] In this embodiment: the identity authentication unit in the security verification module authenticates the user before the backup operation to ensure that only legitimate users can perform the backup operation, and the access control unit strictly controls the access to the backup data to prevent unauthorized access; in order to ensure the security of the backup data, before the backup operation, the user identity is verified by the identity authentication unit, and the verification method may include password verification, fingerprint verification, facial recognition and other methods; the access control unit is used to control the access to the backup data, and only authorized users can access the backup data; the identity authentication unit can require the user to provide identity authentication information, such as password, fingerprint, facial recognition, etc. before the backup operation starts, and only the verified user can perform the backup operation, preventing unauthorized users from performing the backup operation, thereby improving the security of the backup data. In order to ensure the security of the backup data, the user identity is verified before the backup operation is performed; the access control unit can set access rights for the backup storage device, and only users with correct authorization can access the backup data. Encryption technology, access control lists and other methods can be used to implement access control to prevent the backup data from being illegally accessed or tampered with, further improving the security of the data, and controlling the access to the backup data, and only authorized users can access the backup data.
[0059] In the present invention, the user first needs to install the computer data security automatic backup system of the present invention and configure it according to his own needs. The configuration content includes backup strategy, storage device selection, security verification method, etc.
[0060] Data monitoring: After the system is started, the data monitoring module starts to monitor the changes of data in the computer system in real time. When data changes are detected, the backup trigger module is notified immediately;
[0061] Backup trigger: The backup trigger module determines whether a backup operation is required based on the preset backup strategy. If backup is required, the data backup module is notified to perform the backup.
[0062] Data backup: The data backup module copies the data to be backed up to the designated storage device. During the backup process, data compression and encryption technology are used to ensure the security of the backup data and the efficient use of storage space.
[0063] Backup management: Users can manage backup tasks through the backup management module, including viewing backup history, restoring backup data, etc.
[0064] Security verification: Before performing a backup operation, the system will authenticate the user. Only verified users can perform the backup operation, ensuring the security of the backup data.
[0065] Through the collaborative work of the above modules and units, this computer data security automatic backup system can provide users with efficient and reliable data protection and ensure the security and recoverability of computer data.
[0066] The system of the present invention can automatically monitor changes in computer data and automatically perform backup operations without manual intervention, thereby improving the efficiency and reliability of backup, and adopting advanced data compression and encryption technologies to ensure the security of backup data; at the same time, through the security verification module, only verified users can perform backup operations, further improving the security of data, and users can customize backup strategies, storage device selection, security verification methods, etc. according to their own needs to meet the personalized needs of different users; the backup management module provides an intuitive interface, and users can easily manage backup tasks, view backup history records, restore backup data and other operations; users can manage backup tasks through the backup management module, including viewing backup history records, restoring backup data and other operations; before performing a backup operation, the system will authenticate the user, and only verified users can perform a backup operation, thereby ensuring the security of the backup data.
[0067] Example 2
[0068] The present invention also provides a method for using the computer data security automatic backup system. In order to better explain and illustrate the computer data security automatic backup system provided in Example 1, the details are as follows:
[0069] S1. System installation and initialization:
[0070] The user downloads and installs this computer data security automatic backup system;
[0071] The system performs initial settings, including asking the user to select a backup storage device (local hard disk, external storage device, network storage device or cloud storage, etc.), and the initial setting of the backup strategy (such as the time interval for scheduled backup, whether to perform special monitoring on key data, etc.);
[0072] The user sets up security verification methods according to the prompts, such as password verification, fingerprint verification, or facial recognition;
[0073] S2. Data monitoring starts:
[0074] The data change monitoring unit and key data identification unit in the data monitoring module start working;
[0075] The data change monitoring unit monitors the changes of data in the computer system in real time, including operations such as file creation, modification, and deletion;
[0076] The key data identification unit identifies and focuses on monitoring key data in the computer system;
[0077] S3, backup trigger judgment:
[0078] The timing trigger unit and event trigger unit in the backup trigger module make judgments based on the preset strategies;
[0079] The timing trigger unit checks whether the preset backup time point has been reached;
[0080] The event trigger unit determines whether a specific event occurs, such as system update, software installation, etc.;
[0081] If the trigger condition is met, proceed to the next step; otherwise, continue to monitor data changes;
[0082] S4. Data backup execution:
[0083] The data copying unit of the data backup module copies the data to be backed up to the designated storage device;
[0084] The compression and encryption unit compresses and encrypts the backup data to ensure data security and efficient use of storage space;
[0085] S5. Backup management and query:
[0086] The task management unit of the backup management module allows users to manage backup tasks, such as modifying backup strategies, pausing or resuming backup tasks, etc.
[0087] The history query unit allows users to query backup history records and understand the execution status of backup tasks;
[0088] S6. Security verification and access control:
[0089] Before performing a backup operation and when a user accesses backup data, an identity verification unit of the security verification module authenticates the user;
[0090] Only authenticated users can perform backup operations or access backup data;
[0091] The access control unit strictly controls access to backup data to prevent unauthorized access.
[0092] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A computer data security automatic backup system, characterized in that: include: A data monitoring module, a backup trigger module, a data backup module, a backup management module and a security verification module. The data monitoring module is used to monitor the changes in data in the computer system in real time. The backup trigger module is used to perform backup operations according to the monitoring results of the data monitoring module. The data backup module is used to copy the data to be backed up to a specified storage device. The backup management module is used to manage the backed up data. The security verification module is used to protect the security of the backup data.
2. A computer data security automatic backup system according to claim 1, characterized in that: The data monitoring module is provided with a data change monitoring unit and a key data identification unit. The data change monitoring unit is used to monitor data changes, and the key data identification unit is used to identify key data in the data.
3. A computer data security automatic backup system according to claim 2, characterized in that: The monitoring frequency of the data change monitoring unit is calculated as follows: Where: F is the data change monitoring frequency, a is the adjustment coefficient, and T is the preset time interval.
4. A computer data security automatic backup system according to claim 3, characterized in that: The key data identification unit uses a specific algorithm to identify the key data in the computer system, and the calculation method is as follows: I = bC + dD; The calculation results show that I is the importance value of key data, b and d are weight coefficients, C is the importance factor of data type, and D is the data access frequency factor.
5. A computer data security automatic backup system according to claim 4, characterized in that: The backup trigger module is provided with a timing trigger unit and an event trigger unit. The timing trigger unit is used to trigger according to a preset time point, and the event trigger unit is used to trigger a backup operation when a specific event occurs.
6. A computer data security automatic backup system according to claim 5, characterized in that: The data backup module is provided with a data copying unit and a compression encryption unit. The data copying unit is used to copy the data to a designated storage device, and the compression encryption unit is used to compress and encrypt the backup data.
7. A computer data security automatic backup system according to claim 6, characterized in that: The compression ratio of the data compression by the compression encryption unit is calculated as follows: Where: R is the compression ratio, O1 is the original data size, and O2 is the compressed data size.
8. A computer data security automatic backup system according to claim 7, characterized in that: The value range of the adjustment coefficient a is 0.5-2, the sum of the weight coefficients b and d is 1, and the value range of the weight coefficient b is 0.3-0.7, the value range of the weight coefficient d is 0.3-0.7, the value range of the importance factor C of the data type and the data access frequency factor D are both 0-1, and the value range of the compression ratio R is 0.1-0.
9.
9. A computer data security automatic backup system according to claim 8, characterized in that: The backup management module is provided with a task management unit, a history query unit and a data recovery unit. The task management unit is used by users to create, modify and delete backup tasks, the history query unit is used by users to query backup history records, and the data recovery unit is used to quickly recover data.
10. A computer data security automatic backup system according to claim 9, characterized in that: The security verification module is provided with an identity verification unit and an access control unit. The identity verification unit is used to authenticate the operating user, and the access control unit strictly controls the access to the backup data.