CN112269675A

CN112269675A - Data backup method and device and terminal equipment

Info

Publication number: CN112269675A
Application number: CN202011000438.1A
Authority: CN
Inventors: 朱炼兵
Original assignee: Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
Current assignee: Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
Priority date: 2020-09-22
Filing date: 2020-09-22
Publication date: 2021-01-26

Abstract

The application discloses a data backup method, which comprises the following steps: when the backup triggering condition is met, determining data to be backed up in a preset storage path; screening target data from the data to be backed up; and backing up the target data to a backup server. The embodiment of the application provides a data backup method, a data backup device and terminal equipment, which can reduce redundancy of data to be backed up so as to improve the space utilization rate of a backup server.

Description

Data backup method and device and terminal equipment

Technical Field

The present application relates to the field of data processing, and in particular, to a data backup method, apparatus, and terminal device.

Background

At present, data backup services of a plurality of terminal devices in the market are all placed on a third party service provider, and for the cost consideration of both parties, the size of free backup space provided for a user by the third party service provider is only dozens of GB generally according to the protocol of a manufacturer of the terminal devices. The existing backup technology is either based on backup contents set by a user for backup, or backups all data information updated and stored by the mobile terminal after the last backup, wherein the former is complicated in operation, and the latter can cause a large amount of unnecessary backup data information to occupy a backup server.

In view of the above, there is an urgent need to design a new data backup method to overcome the above problems of the existing backup method.

Disclosure of Invention

The embodiment of the application provides a data backup method, a data backup device and terminal equipment, which can reduce redundancy of data to be backed up so as to improve the space utilization rate of a backup server, and the technical scheme is as follows:

in a first aspect, the present application provides a data backup method, including:

when the backup triggering condition is met, determining data to be backed up in a preset storage path;

screening target data from the data to be backed up;

and backing up the target data to a backup server.

In a second aspect, an embodiment of the present application provides a data backup apparatus, including:

the determining module is used for determining the data to be backed up in a preset storage path when the backup triggering condition is met;

the screening module is used for screening target data from the data to be backed up;

and the backup module is used for backing up the target data to a backup server.

In a third aspect, embodiments of the present application provide a computer storage medium storing a plurality of instructions adapted to be loaded by a processor and to perform the above-mentioned method steps.

In a fourth aspect, an embodiment of the present application provides an electronic device, including: a memory and a processor; wherein the memory stores a computer program adapted to be loaded by the processor and to perform the above-mentioned method steps.

In one or more embodiments of the present application, when a terminal device executes a backup operation, a specific algorithm is first used to perform a screening operation on data to be backed up, and the target data is screened out and then backed up to a backup server, so as to avoid waste of a backup server space caused by data redundancy; furthermore, the terminal device classifies non-target data except the target data in the backup data based on data types, and the classified non-target data is moved into different folders to remind a user of backup or clearing actions, so that the user can sort the data and release the storage space of the terminal device conveniently.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic architecture diagram of a data backup system according to an embodiment of the present application;

fig. 2 is a schematic flowchart of a data backup method according to an embodiment of the present application;

fig. 3A, fig. 3B, and fig. 3C are schematic diagrams illustrating a method for screening a plurality of pictures according to an embodiment of the present disclosure;

4A, 4B, 4C are schematic diagrams of a method for screening a plurality of documents provided by the embodiment of the application;

FIG. 5 is a schematic flowchart of another data backup method provided in an embodiment of the present application;

fig. 6 is a schematic structural diagram of a data backup device according to an embodiment of the present application;

fig. 7 is a schematic structural diagram of a computer program product provided in an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the present application, it is to be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present application, it is noted that, unless explicitly stated or limited otherwise, "including" and "having" and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus. For those skilled in the art, the above terms are to be understood as being specifically understood in the context of the present disclosure

Meaning. Further, in the description of the present application, "a plurality" means two or more unless otherwise specified. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.

The present application will be described in detail with reference to specific examples.

As shown in fig. 1, an architecture of a data backup system provided in an embodiment of the present application includes a backup server 10 and one or more terminal devices. The backup server 10 may be a server or a service device based on internet cloud technology, and provides services such as storage, reading, and downloading of information for enterprises and individuals through the internet, and the most important function is to provide a storage space with a certain space capacity for users. Terminal equipment (terminal device) includes, but is not limited to, a Mobile Station (MS), a mobile terminal device (mobile terminal), a mobile phone (mobile phone), a handset (handset), a portable device (portable device), etc., and the terminal device may communicate with one or more core networks via a Radio Access Network (RAN), for example, the terminal device may be a mobile phone (or referred to as a "cellular" phone), a computer with wireless communication function, etc., and the terminal device may also be a portable, pocket, hand-held, computer-embedded, or vehicle-mounted mobile device or equipment, for example: as shown in fig. 1, the terminal device includes electronic devices such as a smart phone 11A, a computer 11B, a tablet computer 11C, etc., and has a function of storing data, and the terminal device may establish data communication with the backup server 10 through an internet service, for example: data such as pictures and documents uploaded by the terminal device are sent to the backup server 10, and the terminal device downloads the data stored in the backup server 10. As shown in fig. 1,

users

12A, 12B, 12C, etc. include businesses and individuals, and interact with the terminal device by means of touch or voice input, for example: setting a backup period for backing up data once a week on the terminal equipment, and when the backup time comes, the terminal equipment sends a message popup to a user.

In order to prevent the loss of the stored data caused by the loss or damage of the terminal equipment, nowadays, users pay more and more attention to data backup, but based on cost consideration, the storage space provided by the backup server to the users is usually only dozens of GB, and the backup of a large amount of unnecessary repeated data only wastes the space of the backup server.

In order to solve the problem of data backup in the prior art, an embodiment of the present application provides a method for data backup, as shown in fig. 2, fig. 2 is a schematic flow diagram of the method for data backup provided in the embodiment of the present application.

And S21, determining the data to be backed up in a preset storage path when the backup triggering condition is met.

In one or more embodiments, the backup trigger condition for the terminal device to perform the data backup operation may be: the method comprises the steps of establishing Wi-Fi connection by the terminal equipment, detecting the backup time or receiving a backup instruction of a user, or combining the situations. The preset storage path may be one or more specified folders preset by a user, one or more specified disk spaces, or the like. When the backup triggering condition is met, the main control unit of the terminal device determines all data in the preset storage path as data to be backed up according to the preset storage path.

For example, the user opens a data backup setting page of the terminal device, and selects the column "backup trigger condition" on the setting page: 1 to 23 days of each week, establishing Wi-Fi connection, and selecting in the column of 'preset storage path': all data in the disk C are stored in a set data backup setting page; the terminal equipment receives a setting instruction of a user and stores the backup trigger condition and a preset storage path; and when the terminal equipment detects that the time is 1 point of the day of the week and detects that the Wi-Fi connection is established, the terminal equipment determines all data in the disk C as data to be backed up.

And S22, screening target data from the data to be backed up.

In this embodiment of the present application, the target data is data that is actually backed up to the backup server, and the data to be backed up is all data in a preset storage path, including: pictures, documents, address lists, video, audio, and other types of data. The data to be backed up has redundancy, for example: similar pictures, documents with different storage paths but completely consistent names and contents, sound recordings completely blank for one or two seconds and the like.

In one or more possible embodiments, a plurality of pictures exist in the data to be backed up, the terminal device matches at least one group of similar picture sets in the plurality of pictures, and a picture with the highest definition in the similar picture sets is taken as a target picture. For example, as shown in fig. 3A, the terminal device determines 9 pictures as data to be backed up in a preset storage path C disk, where the 9 pictures are named as picture 1, picture 2, picture 3, picture 4, picture 5, picture 6, picture 7, picture 8, and picture 9, respectively. In the embodiment of the present application, the principle that the terminal device matches similar pictures may be: firstly, the sizes of the 9 pictures are scaled to be uniform 8X8, 64 pixels are used in total, so that only basic information such as picture color structures, light and shade and the like is reserved, and picture differences caused by different sizes and proportions of a plurality of pictures are abandoned; then, carrying out binarization processing on the 9 pictures, and processing the pictures into black and white pictures with certain gray levels, namely that pixel points of one picture only have gray levels; then processing the color fingerprint of each picture as characteristic information, wherein the processing process comprises the following steps: calculating the gray average value of the 64 pixel points, comparing the gray value of each pixel with the average value, if the gray value of one pixel is larger than the average value, marking as 1, otherwise, marking as 0, and combining the comparison results into a 64-bit integer according to a certain combination rule, wherein the integer is the color fingerprint of the picture; and finally comparing the color fingerprints of each picture, and if the number of different data bits of the color fingerprints of the two pictures is less than 5, judging that the two pictures are similar pictures. The matching method of the similar pictures is not limited in the embodiment of the application. As shown in fig. 3B, the terminal device uses the picture 1, the picture 4, and the picture 5 that are matched as similar pictures as a group of similar picture sets to move into the set of the similar picture set 1, and uses the picture 3 and the picture 8 as another group of similar picture sets to move into the set of the similar picture set 2. And finally, the terminal device takes the picture with the highest definition in the 2 similar picture sets as a target picture, wherein the target picture is one of the target data which are actually backed up. In the embodiment of the present application, the calculation of the definition of the picture may be calculated by using a lattice, for example: taking the brightness of each row of pixel points on the picture as a group, calculating the maximum value, the minimum value and the average value of the brightness values of each row of data, and the sum of squares of the maximum value and the average value, the sum of squares of the minimum value and the average value of the brightness values, and adding the sums of squares of the groups to obtain the definition, wherein the larger the definition value is, the clearer the picture is, for example, in a similar picture set 1, the definition of a picture 1 is 53, the definition of a picture 4 is 24, and the definition of a picture 5 is 67, and then taking the picture 5 as a target picture; in the similar picture set 2, if the resolution of the picture 3 is 62 and the resolution of the picture 8 is 45, the picture 3 is taken as the target picture. In another embodiment, the sharpness value may also be calculated by calculating the number of pixels of the picture. The embodiment of the present application does not limit the method for calculating the sharpness. Finally, as shown in fig. 3C, the terminal device takes picture 2, picture 3, picture 5, picture 6, picture 7, and picture 9 as target pictures, and moves the target pictures into the target picture set, where the target pictures are one of the actual backup data.

In one or more possible embodiments, the present application embodiment may further screen out the target picture based on the size of the storage space occupied by the picture, for example: and screening out pictures occupying storage space and having the size not exceeding 100 kb.

In one or more possible embodiments, the data to be backed up further includes a plurality of documents, the terminal device matches at least one group of similar document sets in the plurality of documents, and takes the document with the latest storage time in the similar document sets as the target document. For example, the terminal device determines all the documents as data to be backed up according to the preset storage path C, as shown in fig. 4A, including 5 documents. Then, the terminal device matches at least one group of similar document sets, and the matching algorithm may be that the document names are the same or the repetition rate of the document content is as high as 99%, for example: the terminal device presets data backup in all storage spaces, and a user downloads the same "class address book" document on the Tencent QQ and the enterprise WeChat, but the storage paths of the two social software are respectively two different folders, so that the same file is stored in two by the operation of the user, and when the terminal device performs data backup, the two same files are put into one set, as shown in FIG. 4B, and one similar file set comprises two "class address book" documents. Finally, the terminal device takes the document with the latest saving time in the similar document set as the target document and moves the document into the target document, as shown in fig. 4C. Specifically, the terminal device detects that the storage time of one "class address book" file in the similar document set is 8/25/2020, and the storage time of the other "class address book" file is 8/27/2020, and determines that the latter is a target file, including other documents, and moves the target file into the target document set, where the target file is one of the actually backed-up data.

In one or more possible embodiments, the data to be backed up further includes address book data, and the terminal device compares the address book data with the address book data that was backed up last time. The data of the address book comprises: contact name phone and address, call log, etc.; and then, the terminal equipment filters the repeated part in the address book data compared with the address book data which is backed up last time to obtain the target address book data. For example: the last backup address book data comprises the telephone number of the contact A, the telephone number 1 of the contact B and the total 30 call records, and at the moment, the address book data comprises the telephone number of the contact A, the telephone numbers 1 and 2 of the contact B, the telephone number of the contact C and the total 50 call records; the main control unit filters 30 call records of repeated call records of the telephone number of the contact A, the telephone number 1 of the contact B and the 50 call records in the address book data to be backed up, and the telephone number 2 of the contact B, the telephone number of the contact C and the 20 call records are left as target address book data, wherein the target address book data are actual backup data.

The embodiment of the application has at least the following beneficial effects: based on the algorithm, the terminal device filters the data to be backed up, so that the redundant data is prevented from occupying the space of the backup server, the waste of the space of the backup server is avoided, and the problem that uploading a large amount of repeated data occupies more time and network channels is avoided.

And S23, backing up the target data to a backup server.

The main control unit of the terminal device uploads the target data to the backup server for processing through channels such as a Wi-Fi channel or a cellular data network after screening the data to be backed up. The backup server 10 may be a server or a service device based on an internet cloud technology, and provides services such as information storage, reading, downloading and the like for enterprises and individuals through the internet, the most important function is to provide a storage space with a certain space capacity for users, and the backup server may be a cloud server provided by a third party enterprise, another terminal device, or a security server built by the user.

For example, a user opens a data backup setting interface of a smartphone, and sets a column of "backup trigger condition" on a setting page for selection: after 1 to 23 days of each week are connected with a computer through a data line, selecting the following items in a column of 'preset storage path': the folder named as backup data stores the set data backup setting page; the terminal equipment receives a setting instruction of a user and stores the backup trigger condition and a preset storage path; when the smart phone detects that the time is 1 point every day and the equipment is connected with the computer through a data line, determining all data in a folder named as backup data as data to be backed up, screening target data from the data to be backed up, and sending a backup application instruction to the computer through a data line by the smart phone; the computer receives the backup application instruction, creates a folder for storing backup data on the disk C, and sends a backup application approval instruction to the smart phone through the data line; after receiving the backup application approval instruction, the smart phone packs and sends target data to a computer through a data line; and the computer receives the packed target data and saves the packed target data into a folder of backup data saving of the C disk.

The embodiment of the application has at least the following beneficial effects: based on the steps, after the terminal device performs backup storage on the target data in the backup server, when the user loses or damages the terminal device, important data can be reserved, and the loss of the user is greatly reduced.

Fig. 5 is a schematic flow chart of another data backup method according to an embodiment of the present application.

And S51, determining the data to be backed up in a preset storage path when the backup triggering condition is met.

In this embodiment of the application, when the backup triggering condition is satisfied, the main control unit of the terminal device first determines a preset storage path range, and then determines that all data in the storage path are to-be-backed up data, and the specific working manner of step S51 may refer to step S21 in fig. 2.

And S52, screening the target data from the data to be backed up.

In this embodiment of the application, the main control unit of the terminal device filters the data to be backed up based on a certain algorithm and rule to screen out the target data, and the specific working manner of step S52 may refer to step S22 in fig. 2.

In one or more possible embodiments, the screening of the target data by the terminal device may also be: detecting the recorded audio, and screening out the blank audio when detecting the blank audio; and performing frame division processing on the stored video, comparing pictures of all frames of the plurality of videos, judging the video to be a similar video if the number of the pictures of the similar or identical frames of the two videos exceeds a certain threshold value, and taking the video with updated storage time as target data.

And S53, backing up the target data to a backup server.

In this embodiment of the application, the main control unit of the terminal device sends the screened target data to the backup server for saving, and the specific operation manner of step S33 may refer to step S23 in fig. 2.

And S54, screening non-target data except the target data in the data to be backed up.

Specifically, after the main control unit of the terminal device screens the data to be backed up, the target data and the non-target data are distinguished. For example, non-target data may include: and (3) screening the picture left after the clearest picture is screened from the similar photo collection, screening the document left after the document with the latest storage time is screened from the similar document collection, or screening the audio with blank space of only one or two seconds, and the like.

S55, classifying the non-target data based on the data type, and moving the classified data into different folders.

In the embodiment of the application, a main control unit of the terminal device divides non-target data into types such as video, audio, documents, pictures, compressed packets and the like, automatically generates a plurality of folders in a specified storage path based on the preset, moves the non-target data into different folders according to file types, and deletes the non-target data in the original storage path. For example: the user specifies that data which is not backed up after the data is backed up each time is stored in the disk A; after the data is backed up, the non-target data in the data to be backed up includes 5 videos, 3 audios, 50 documents and 20 pictures, 4 folders are newly built in the disk a by the main control unit of the terminal device, and are named as "videos to be processed", "audios to be processed", "documents to be processed" and "pictures to be processed", respectively, and the main control unit then moves the 5 videos, the 3 audios, the 50 documents and the 20 pictures in the original storage path into the 4 folders, respectively.

In one or more possible embodiments, the main control unit of the terminal device may further classify the non-target data according to the file size of the non-target data, or classify the non-target data according to the file creation time, automatically generate a plurality of folders in a specified storage path based on a preset rule, and move the non-target data into different folders according to the classification rule.

And S56, reminding the user to process the non-target data according to a preset period.

Specifically, the main control unit of the terminal device sends a reminding message to the user based on a preset period, wherein the reminding message is used for reminding the user to process non-target data without backup. For example: the user opens a data backup setting interface, and selects in a column of 'reminding' on the setting interface: and sending a popup message prompt 72 hours after the data backup is finished, and filling in a column of 'reminding content': if the data which is not backed up exists, whether the cleaning or backup operation is carried out immediately or not is judged, and the selection is carried out in the column of 'reminding again': sending a popup message prompt 72 hours after the first reminding, and storing the setting interface by the user; the terminal equipment receives a setting instruction of a user and stores the content in the setting interface; when the terminal device detects that the data backup is completed and reaches 72 hours, a popup message prompt is popped up on the display screen, and the popup content is as follows: if the data which is not backed up exists, the cleaning or backup operation is immediately carried out.

And S57A, when a cleaning instruction of the user for the non-target data is received, cleaning the target data in response to the cleaning instruction.

In the embodiment of the application, the user can execute the cleaning operation after receiving the prompt message, and the terminal equipment responds to the cleaning instruction to clean the target data when receiving the cleaning instruction of the user. The cleaning may be for all non-target data or for some non-target data. For example: after a user receives a popup message prompt, an 'automatic cleaning' button is arranged at the lower right corner of the popup message prompt, and the user selects 'automatic cleaning'; and the terminal equipment receives the cleaning instruction and moves all the non-target data in the preset storage path into the recycle bin.

And S57B, when receiving a second backup instruction of the user for the non-target data, backing up the non-target data in response to the second backup instruction.

In the embodiment of the application, after receiving the prompt message, the user may perform a backup operation again, input a second backup instruction to the main control unit, and the terminal device also backs up the non-target data to the backup server in response to the second backup instruction. The backup operation may be for some non-target data, and may be for all target data. For example: after receiving a popup message prompt, a user selects a storage path for searching non-target data, selects data which is considered to be important in the non-target data and selects a backup option; and the main control unit of the terminal equipment receives the operation instruction, selects the non-target data part selected by the user, and backs up the non-target data part to a backup server through a Wi-Fi protocol or a cellular data network.

In one or more possible embodiments, when the terminal device does not receive a processing instruction of a user, the non-target data is automatically cleaned when the storage duration of the non-target data exceeds a preset duration. For example: the user selects in the column "auto clean" of the data backup settings interface: the data storage time exceeds one month, the data is automatically cleaned, and a user stores a setting interface; and the terminal equipment receives the operation instruction, and automatically moves the data into the recycle bin when detecting that the storage time of the data such as a document or audio reaches 30 days.

In one or more possible embodiments, when the terminal device does not receive a processing instruction of a user, but based on a preset threshold of the size of the storage space of the terminal device, the non-target data is automatically cleaned, that is, when the terminal device detects that the storage space is less than a certain value, the non-target data is cleaned in sequence according to the storage time of the non-target file. For example: the user selects in the column "auto clean" of the data backup settings interface: when the storage space is less than 10GB, automatically cleaning data; and the terminal equipment receives the operation instruction, detects the storage time of all the non-target data in the preset storage path when detecting that the storage space is lower than 10GB, starts to clean the non-target data with the longest storage time, and cleans the non-target data according to the time sequence until the terminal equipment detects that the capacity of the storage space is larger than 10 GB.

The embodiment of the application has at least the following beneficial effects: based on the steps, the terminal device performs backup or cleaning operation on the non-target data, so that the problem that important data is wrongly classified into the non-target data due to the screening operation in the steps is avoided, the important data is not backed up and stored, and a user is prompted to clean the non-target data so as to release the storage space of the terminal device.

As shown in fig. 6, a schematic structural diagram of a data backup apparatus provided in an embodiment of the present application is shown, where the data backup apparatus may implement the data backup method shown in fig. 2 to 3, and includes: a determination module 61, a screening module 62, and a backup module 63.

The determining module 61 is configured to determine data to be backed up in a preset storage path when a backup trigger condition is met;

the screening module 62 is configured to screen target data from the data to be backed up;

and the backup module 63 is used for backing up the target data to the backup server.

The embodiment of the present application and the method embodiments of fig. 2 to 5 are based on the same concept, and the technical effects brought by the embodiment are also the same, and the specific process may refer to the description of the method embodiments of fig. 2 to 5, and will not be described again here.

The control device may be a field-programmable gate array (FPGA), an application-specific integrated chip, a system on chip (SoC), a Central Processing Unit (CPU), a Network Processor (NP), a digital signal processing circuit, a Micro Controller Unit (MCU), or a Programmable Logic Device (PLD) or other integrated chips.

An embodiment of the present application further provides a computer storage medium, where the computer storage medium may store a plurality of instructions, where the instructions are suitable for being loaded by a processor and executing the above method steps, and a specific execution process may refer to specific descriptions of the embodiments shown in fig. 2 to fig. 5, which are not described herein again.

The present application further provides a computer program product, which stores at least one instruction, and the at least one instruction is loaded and executed by the processor to implement the control method according to the above embodiments.

Fig. 7 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure. As shown in fig. 7, the electronic device 7 may include: at least one processor 701, at least one network interface 704, a user interface 703, memory 705, at least one communication bus 702.

Wherein a communication bus 702 is used to enable connective communication between these components.

The user interface 703 may include a Display screen (Display) and a Camera (Camera), and the optional user interface 703 may also include a standard wired interface and a standard wireless interface.

The network interface 704 may include a standard wired interface, a wireless interface (e.g., a Wi-Fi interface), among others.

Processor 701 may include one or more processing cores, among other things. The processor 701 connects various parts within the overall terminal 700 using various interfaces and lines, and performs various functions of the terminal 500 and processes data by executing or executing instructions, programs, code sets, or instruction sets stored in the memory 705, as well as calling data stored in the memory 705. Optionally, the processor 701 may be implemented in at least one hardware form of Digital Signal Processing (DSP), Field-Programmable Gate Array (FPGA), and Programmable Logic Array (PLA). The processor 701 may integrate one or a combination of a Central Processing Unit (CPU), a Graphics Processing Unit (GPU), a modem, and the like. Wherein, the CPU mainly processes an operating system, a user interface, an application program and the like; the GPU is used for rendering and drawing the content required to be displayed by the display screen; the modem is used to handle wireless communications. It is understood that the modem may not be integrated into the processor 701, and may be implemented by a single chip.

The Memory 705 may include a Random Access Memory (RAM) or a Read-Only Memory (Read-Only Memory). Optionally, the memory 705 includes a non-transitory computer-readable medium. The memory 705 may be used to store instructions, programs, code sets, or instruction sets. The memory 705 may include a program storage area and a data storage area, wherein the program storage area may store instructions for implementing an operating system, instructions for at least one function (such as a touch function, a sound playing function, an image playing function, etc.), instructions for implementing the various method embodiments described above, and the like; the storage data area may store data and the like referred to in the above respective method embodiments. The memory 705 may optionally be at least one memory device located remotely from the processor 701. As shown in fig. 7, the memory 705, which is a kind of computer storage medium, may include therein an operating system, a network communication module, a user interface module, and a loading application of a driver file.

In the electronic device 700 shown in fig. 7, the user interface 703 is mainly used as an interface for providing input for a user to obtain data input by the user; the processor 701 may be configured to call a loading application of the driver file stored in the memory 705, and specifically perform the following operations:

screening target data from the data to be backed up;

and backing up the target data to a backup server.

In one embodiment, the data to be backed up includes a plurality of pictures; the processor 701 executes the process of screening out target data from the data to be backed up, including:

matching at least one group of similar picture sets in the plurality of pictures; the similar picture set comprises at least two similar pictures;

taking the picture with the highest definition in the similar picture set as a target picture; wherein the target data comprises a target picture.

In one embodiment, the processor 701 performs matching of at least one set of similar picture sets among the plurality of pictures, including:

carrying out zooming processing and binaryzation on the plurality of pictures to obtain a plurality of pictures to be processed;

calculating characteristic information of a plurality of pictures to be processed;

and adding one or more pictures with the similarity of the characteristic information smaller than the similarity threshold value in the plurality of pictures to be processed into the same group of similar picture sets.

In one embodiment, the data to be backed up includes a plurality of documents; the processor 701 executes screening of target data from the data to be backed up, including:

matching at least one group of similar document sets in a plurality of documents; wherein, the similar document set comprises at least two documents with the same name;

taking the document with the latest storage time in the document set as a target document; wherein the target data comprises a target document.

In one embodiment, when the backup triggering condition is satisfied, before the processor 701 executes determining data to be backed up in a preset storage path, the method further includes:

when the terminal equipment establishes Wi-Fi connection, determining that a backup trigger condition is met; or

When the backup time is detected, determining that a backup trigger condition is met; or

And when receiving a backup instruction of a user, determining that a backup trigger condition is met.

In one embodiment, the processor 701 further performs the steps of:

screening non-target data except the target data in the backup data;

classifying the non-target data based on the data type, and moving the classified data into different folders;

reminding a user to process non-target data according to a preset period;

when a cleaning instruction of a user for non-target data is received, cleaning the non-target data in response to the cleaning instruction; or

And when a second backup instruction of the user for the non-target data is received, backing up the non-target data in response to the second backup instruction.

In one embodiment, processor 701 further performs the following steps further comprising:

screening non-target data except the target data in the backup data;

and when the storage time of the non-target data exceeds the preset time, cleaning the non-target data.

The technical concept of the embodiment of the present application is the same as that of fig. 2 to 5, and the specific process may refer to the method embodiment of fig. 2 to 5, which is not described herein again.

The embodiment of the application has at least the following beneficial effects: according to the embodiment of the application, the data to be backed up is screened through a specific algorithm, the target data is screened out and then backed up to the backup server, and waste of the backup server space caused by uploading of redundant data is avoided; furthermore, the terminal device classifies non-target data except the target data in the backup data based on data types, moves the classified non-target data into different folders, and reminds a user to perform backup or clearing actions, so that the user can sort the data and release the storage space of the terminal device conveniently.

It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program, which can be stored in a computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a read-only memory or a random access memory.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present application and is not to be construed as limiting the scope of the present application, so that the present application is not limited thereto, and all equivalent variations and modifications can be made to the present application.

Claims

1. A method for data backup, comprising:

screening target data from the data to be backed up;

and backing up the target data to a backup server.

2. The method of claim 1, wherein the data to be backed up comprises a plurality of pictures; the screening of the target data from the data to be backed up includes:

matching at least one group of similar picture sets in the plurality of pictures; wherein, the similar picture set comprises at least two similar pictures;

taking the picture with the highest definition in the similar picture set as a target picture; wherein the target data comprises the target picture.

3. The method of claim 2, wherein matching at least one set of similar picture sets among the plurality of pictures comprises:

zooming and binarizing the pictures to obtain a plurality of pictures to be processed;

calculating characteristic information of the plurality of pictures to be processed;

and adding one or more pictures of which the similarity of the characteristic information is smaller than a similarity threshold value in the plurality of pictures to be processed into the same group of similar picture sets.

4. The method of claim 1, wherein the data to be backed up comprises a plurality of documents; the screening of the target data from the data to be backed up includes:

matching at least one group of similar document sets in the plurality of documents; wherein, the similar document set comprises at least two documents with the same name;

taking the document with the latest storage time in the similar document set as a target document; wherein the target data comprises the target document.

5. The method according to claim 1, wherein before determining the data to be backed up in the preset storage path when the backup triggering condition is satisfied, the method further comprises:

6. The method of claim 1, further comprising:

screening non-target data except the target data in the backup data;

reminding a user to process the non-target data according to a preset period;

when a cleaning instruction of the user for the non-target data is received, cleaning the non-target data in response to the cleaning instruction; or

7. The method of claim 1, further comprising:

screening non-target data except the target data in the backup data;

8. A data backup apparatus, comprising:

9. A computer storage medium, characterized in that it stores a plurality of instructions adapted to be loaded by a processor and to carry out the method steps according to any one of claims 1 to 7.

10. An electronic device, comprising: a memory and a processor; wherein the memory stores a computer program adapted to be loaded by the processor and to perform the method steps of any of claims 1 to 7.