CN118113674A

CN118113674A - File management system and method thereof

Info

Publication number: CN118113674A
Application number: CN202410356354.3A
Authority: CN
Inventors: 谢文明; 陈冠鸿; 许登闵
Original assignee: Huanrong Electronics Huizhou Co ltd
Current assignee: Huanrong Electronics Huizhou Co ltd
Priority date: 2024-03-26
Filing date: 2024-03-26
Publication date: 2024-05-31

Abstract

A file management system and a method thereof are provided, wherein the file management system comprises at least one server and at least one user device. Based on the server file management application and the device file management application, the file management system is configured to: scanning each device file by the user device and generating a device file list, which contains at least one file characteristic of each device file; transmitting, by the user device, the device file manifest to the server; the server compares the device files with the server files according to the device file list and the server file list to obtain the same file list, wherein the same file list lists a first same file and a second same file; the same file list is transmitted by the server to the user device. Thus, a plurality of identical, similar or repeated files can be effectively managed.

Description

File management system and method thereof

Technical Field

The present invention relates to a file management system and a method thereof, and more particularly to a file management system and a method thereof for generating the same file list.

Background

In the trend of pursuing convenience life and advanced network technology, various file storage modes are developed. However, the file management method in the prior art can only inspect the files in the user (local) device, and as the number of files continues to increase, there may be duplicate files except for occupying more storage space, and the duplicate files may have a problem of inconsistent data content. When there are multiple user devices, the repeated file causes more storage space waste, and the repeated file located in another user device cannot be managed at the same time, and the repeated operation must be performed on the other user device, which results in complicated operation and inconvenience.

In addition, when the user selects to use all files in the cloud space set, the larger the data volume is, the larger the cloud space with larger capacity is required to be subscribed, so that the cost of the user is increased, the network flow and the time are increased due to a large amount of data transmission and synchronization, the user experience is further affected, and meanwhile, the safety and the privacy of the data are also affected by a cloud server.

In view of the foregoing, in the market of current document storage, there is a need to develop a document management system and a method thereof, which can effectively manage multiple duplicate documents in a server and a client device, and at the same time maintain the convenience of use, data security and save maintenance costs.

Disclosure of Invention

The invention provides a file management system and a method thereof, which are based on a server file management application program and a device file management application program, are used for scanning each device file by a user device and generating a device file list, wherein the device file list comprises at least one file characteristic of each device file, the server compares a plurality of device files according to a device file list to obtain the same file list, the same file list lists a plurality of same files, and the server transmits the same file list to the user device so as to manage repeated files without changing the using habit of the user, transferring the device files of the user device and greatly increasing the cost of the user.

According to an embodiment of the present invention, a file management system includes at least one server and at least one user device. The at least one server comprises a server processor and at least one server storage medium, wherein the at least one server storage medium is in communication connection with the server processor and comprises a plurality of server files, and one of the server files is a server file management application program. The at least one user device is communicatively coupled to the at least one server and comprises a device processor and at least one device storage medium, wherein the at least one device storage medium is communicatively coupled to the device processor and comprises a plurality of device files, one of the plurality of device files being a device file management application. Based on the server file management application and the device file management application, the file management system is configured to: generating, by the user device, at least one file feature for each device file; scanning each device file by the user device and generating a device file list, which contains at least one file characteristic of each device file; transmitting, by the user device, the device file manifest to the server; accessing each server file by a user device and generating at least one file characteristic of each server file; scanning, by a user device, each server file and generating a server file list including at least one file characteristic of each server file; transmitting, by the user device, the server file manifest to the server; the server compares the device files with the server files according to the device file list and the server file list to obtain the same file list, wherein the same file list lists first same files and second same files which are the same or similar, the first same files are the other of the device files, and the second same files are the other of the server files; transmitting, by the server, the same file list to the user device; displaying, by the user device, the same file manifest; and after the first identical file performs the operation event, the user device is used for providing a user to select a second identical file through the identical file list so as to delete the second identical file or synchronously update the second identical file to be identical to the first identical file.

According to another embodiment of the present invention, there is provided a file management method for at least one server and at least one user device communicatively connected thereto, the user device including at least one device storage medium including a plurality of device files, the file management method comprising: generating, by the user device, at least one file feature for each device file; scanning each device file by the user device and generating a device file list, which contains at least one file characteristic of each device file; transmitting, by the user device, the device file manifest to the server; the server compares the device files according to the device file list to obtain the same file list, wherein the same file list lists the first same file and the third same file, and the first same file and the third same file are the same or similar; and transmitting, by the server, the same file list to the user device.

Drawings

FIG. 1A is a diagram illustrating a file management system according to a first embodiment of the present invention;

FIG. 1B is a block diagram of a server of the file management system of FIG. 1A;

FIG. 1C is a block diagram of a user device of the file management system of FIG. 1A;

FIG. 2A is a flowchart illustrating a management mode of a file management method according to a second embodiment of the present invention; and

FIG. 2B is a flowchart illustrating another management mode of the file management method according to the second embodiment.

[ Symbolic description ]

100 File management System

109 Network(s)

110 Server

113 Server processor

114 Server communication module

120 Server storage medium

121 Server file management application

122 Feature comparison unit

129 Application program interface

131 Server File List

135 Device information database

136 Device storage space information database

137 File inventory database

141 Server file

143 Second identical document

144 Second classification file

150,150A,150b user device

151 Device processor

154 Device communication module

155 User interface

160 Device storage medium

161 Device File management application

162 Device information synchronization Unit

163 Storage space information synchronization unit

164 File characteristics generating unit

165 File scanning Unit

166 File listening Unit

168 Transmitting and receiving unit

171 Device File List

178 Identical File List

179 File Classification List

181 Device file

183 First identical document

184 First classified file

200 File management method

210,212,214,216,218,224,226,228,230,232,240,242,250,252,254,260,262 Step

Detailed Description

Fig. 1A is a schematic diagram of a file management system 100 according to a first embodiment of the present invention, fig. 1B is a block diagram of a Server (Server) 110 of the file management system 100 shown in fig. 1A, and fig. 1C is a block diagram of a Client device 150 of the file management system 100 shown in fig. 1A. Referring to fig. 1A to 1C, the file management system 100 includes at least one server 110 and at least one user device, such as user devices 150, 150a, 150b. Specifically, the user device 150 is a smart phone, the user device 150a is a tablet computer, the user device 150b is a notebook computer, and the number and types of the user devices in the file management system of the present invention are not limited thereto.

Referring to fig. 1B, the number of servers 110 in the file management system 100 according to the present invention may be one or more, and is not limited to the one shown in fig. 1B. The server 110 includes a server processor 113, a server Storage Medium (Storage Medium) 120 and a server communication module 114, wherein the server processor 113, the server Storage Medium 120 and the server communication module 114 are communicatively connected, the server Storage Medium 120 includes a plurality of server files 141, and one of the plurality of server files 141 is a server file management application 121.

Referring to fig. 1A and 1C, the user device 150 is communicatively connected to the server 110 via the wireless network 109 and includes a device processor 151, at least one device storage medium 160, a device communication module 154 and a user interface 155, wherein the device processor 151, the device storage medium 160, the device communication module 154 and the user interface 155 are communicatively connected, the device storage medium 160 includes a plurality of device files 181, and one of the plurality of device files 181 is a device file management application 161.

FIG. 2A is a flowchart illustrating a management mode of the file management method 200 according to a second embodiment of the present invention. Referring to fig. 2A, the file management method 200 is used for at least one server 110 and user devices 150, 150a, 150b communicatively connected thereto via a network 109. The file management system 100 according to the first embodiment and the file management method 200 according to the second embodiment of the present invention will be described together, and details of the user devices 150a and 150b may be referred to as the following related content of the user device 150.

Specifically, referring to fig. 1B, the server storage medium 120 includes a plurality of server files 141, and a plurality of the plurality of server files 141 may be an application program interface 129, a server file management application program 121, an identical file list 178, a file classification list 179, a device information database 135, a device storage space information database 136, and a file list database 137, wherein the server file management application program 121 includes a feature comparison unit 122, and the file list database 137 includes a server file list 131 and a device file list 171. Referring to fig. 1C, the device storage medium 160 includes a plurality of device files 181, and a plurality of the device files 181 may be a device file management application 161, a device file list 171, a same file list 178 and a file classification list 179, respectively, wherein the device file management application 161 includes a device information synchronization unit 162, a storage space information synchronization unit 163, a file feature generation unit 164, a file scanning unit 165, a file monitoring unit 166 and a sending and receiving unit 168. Furthermore, the server storage medium 120 and the device storage medium 160 are both non-volatile (Nonvolatile) storage media and include a Virtual File System (VFS).

Referring to fig. 1A-1C and 2A, the file management method 200 includes steps 214, 216, 218, 230, 232, and the file management system 100 is configured to execute the steps 214, 216, 218, 230, 232 of the file management method 200 based on the server file management application 121 and the device file management application 161.

Step 214 includes generating, by the file feature generating unit 164 of the user device 150, at least one file feature of each device file 181 according to the format, structure, metadata (Metadata) and other information of each device file 181. Step 216 includes scanning each device file 181 by the file scanning unit 165 of the user device 150 and generating a device file list 171 that includes file names, sizes, types, attributes, modification times, formats, structures, metadata, and at least one file feature of each device file 181. Step 218 includes the device communication module 154 of the user device 150 transmitting the device file list 171 to the server 110 and storing the device file list in the file list database 137 of the server 110. Specifically, the server 110 containing the file list database 137 is responsible for storing and maintaining a "list" of device files 181 (i.e., device file list 171), i.e., maintaining a list of files. The device file list 171 of the file list database 137 may include only the ID, file name, ID of the user device 150 in which the file is located, file attribute, file fingerprint, file feature, and the like of each device file 181, which are information that helps to determine the true location of the file and the similarity of the file. It should be noted that, in order to ensure the privacy of the user and consider the implementation method and the storage cost, the server 110 of the present invention does not need to store the original file of the user, so the user device 150 does not upload the complete original file of the user, and the server 110 does not store the complete original file of the user.

Step 230 includes comparing, by the feature comparison unit 122 of the server 110, the plurality of device files 181 according to the device file list 171 in the file list database 137 to obtain the same file list 178, which lists a first same file 183 (as shown in fig. 1C) and a third same file (not shown), wherein the first same file 183 and the third same file are the same or similar, so the same file list 178 may also be referred to as a similar file list, the same and similar file lists, and the same file list 178 lists information such as file names of the first same file 183 and the third same file. Specifically, the feature matching unit 122 is an algorithm for providing a file feature matching function by storing the device file list 171 in a plurality of distributed servers 110 in a distributed manner. The feature comparison unit 122 may calculate classifications of device files from different user devices, different device storage spaces, and confirm consistency and integrity of device files. The Feature comparison unit 122 is a technical means for determining whether the device file and the server file are the same or similar, and is mainly implemented by calculating whether the cryptographic hash function (Cryptographic Hash Function), the file fingerprint (FILE FINGERPRINT), the Feature Vector (Feature Vector) and the like of the device file and the server file are larger than a Threshold Value set in a corresponding algorithm.

Step 232 includes the user device 150 accessing the same file list 178 in the server 110 through the application program interface (API, application Programming Interface) 129 of the server 110 and transmitting the same file list 178 to the user device 150 by the server communication module 114 of the server 110, the server 110 including the server communication module 114 being responsible for information communication between the user device 150 and the server 110 and information communication between the user device 150 and the user devices 150a, 150 b. Thus, a plurality of identical, similar or repeated files can be effectively managed. Further, duplicate files can be managed without changing the usage habits of the user (user), without transferring the device files 181 of the user device 150, and without greatly increasing the costs of the user. Specifically, the server 110 including the application program interface 129 is responsible for processing requests issued by software functions of the user device 150, such as, but not limited to, logging in services, listing a list of device storage media 160, selecting one of the device storage media 160 to browse its device files 181, listing device files 181 in all of the device storage media 160, listing the same (similar) files, searching, copying, moving, deleting, sharing, etc. the operations associated with the files.

In detail, the user devices 150, 150a may include a first identical file 183 and a third identical file, respectively. Therefore, the device file management application 161 can realize remote management of any storage media in any network user device, and is convenient for a user to operate and manage. According to other embodiments of the present invention, the same user device may include a first identical file and a third identical file.

The number of the at least one server 110 may be plural, and the plurality of servers 110 are distributed servers. Therefore, the file management system 100 and the file management method 200 according to the present invention can improve the file management efficiency and the storage space utilization of the distributed server architecture.

At least one device storage space of the device storage medium 160 includes a plurality of device files 181, and the file management method 200 may further include steps 210, 212. Step 210 includes generating, by the device information synchronization unit 162 of the user device 150, a device identifier representing the user device 150 and detecting a connection status of the system information of the user device 150 with the network 109, and step 210 includes generating, by the storage space information synchronization unit 163 of the user device 150, a space identifier representing the device storage space individually for all the device storage spaces accessible within the rights of the device file management application 161 and detecting basic information, space usage information and health status of the device storage space. Step 212 includes the device information synchronization unit 162, the storage space information synchronization unit 163 and the device communication module 154 of the user device 150 encrypting and transmitting and synchronizing the device identification code and the space identification code to the server 110, and storing the device identification code and the space identification code in the device information database 135 and the device storage space information database 136 of the server 110 respectively. Therefore, the file management efficiency and the file management effectiveness are improved. Specifically, the device identifier may be a Universal Unique Identifier (UUID) or a Globally Unique Identifier (GUID), and the server 110 including the device information database 135 and the device storage space information database 136 is used as a database for storing user basic data, which user devices the user has, how the user devices communicate with each other, and so on.

The file management method 200 may further include steps 224, 226, 228. Step 224 includes accessing each of the server files 141 by the user device 150 and generating at least one file characteristic of each of the server files 141, specifically, if the user gives the authority to the device file management application 161, the device file management application 161 may access the server storage medium 120 of the server 110 through the network 109, such as Google Drive, oneDrive, dropBox, NFS, samba, etc. (but not limited thereto), that is, the file management system 100 and the file management method 200 of the present invention are not limited to managing the device files 181 stored in the user device 150, but may also manage external files to which the user device 150 has the authority and can be connected, and the file characteristic generating unit 164 may generate the server file list 131 and the file characteristic of the external files of the user device 150 and upload the server file list database 137 of the server 110. Step 226 includes scanning, by the user device 150, each server file 141 and generating a server file list 131 that includes at least one file characteristic of each server file 141. Step 228 includes transmitting, by the user device 150, the server file list 131 to the server 110. In addition, the server 110 may further store, add, change, and delete at least one file feature uploaded by the user device 150. Thus, the file management method in the prior art searches for the same file name through the file browsing program, but cannot determine whether the file contents are consistent and it is difficult to manage duplicate files, and the file management system 100 and the file management method 200 according to the present invention can accurately confirm the same or similar files by comparing the file characteristics.

In steps 214, 224, the at least one file characteristic of each device file 181 and each server file 141 may be at least one of a file fingerprint and a characteristic vector. Further, the file feature generating unit 164 of the user device 150 generates the file fingerprint string by using the encrypted hash function with high collision resistance (Collision Resistance) in the file fingerprint algorithm, such as MD5, SHA-512, SHA-256, SHA2, BLAKE2, but not limited thereto. The file feature generating unit 164 of the user device 150 generates feature vector attribute data through a deep learning Model in the feature vector algorithm, such as a Topic Model (Topic Model), a deep image search (DEEP IMAGE RETRIEVAL), a dual-stream convolutional neural network (Two-Stream Convolutional Neural Network, two-STREAM CNN), and a space-time convolutional neural network, but not limited thereto. Therefore, the file characteristics are compared by the server 110, and the file and the sensitive information of the user do not need to be uploaded and stored in the server 110 (cloud space), so that the privacy of the user can be guaranteed.

Specifically, step 230 may further include comparing, by the feature comparison unit 122 of the server 110, the plurality of device files 181 and the plurality of server files 141 according to the device file list 171 and the server file list 131 to obtain the same file list 178, which lists the first same file 183, the second same file 143, and the third same file, wherein the first same file 183, the second same file 143, and the third same file are the same or similar, and the first same file 183 is one of the plurality of device files 181, the second same file 143 is one of the plurality of server files 141, and the third same file is one of the device files of any one of the user devices 150, 150a, 150 b. Thus, the device file lists and the file characteristics thereof uploaded by all the user devices 150, 150a, 150b are already stored in the file list database 137 of the server 110, and the server 110 obtains the same file list 178 according to the device file lists and the file characteristics thereof of all the user devices 150, 150a, 150b recorded in the file list database 137. The server 110 including the feature comparison unit 122 is responsible for analyzing the characteristics, distribution and association degree of the file features, grouping and classifying the file features, and storing the result in the server 110. The final presentation to the user device 150 may be, but is not limited to: the same repeated file, the music file of the same singer, the photos shot in the same situation and the file files with highly similar content are arranged. The file management system 100 and the file management method 200 according to the present invention can directly manage duplicate files in a local device (e.g., the user device 150), and can also operate duplicate files of other devices (e.g., the user devices 150a, 150 b) or the server 100 at the same time, so that the file management system and the method thereof are simple and easy to use. In addition, according to the file management system and the method thereof of the present invention, according to the comparison result of the feature comparison unit of the server, the same file list may list only the first same file and the second same file, may list only the first same file and the third same file, and may list any combination of the same files in the plurality of device files and the plurality of server files. In other words, the first identical file listed in the identical file list according to the present invention may be a device file of another one of the plurality of device storage media, the second identical file may be a device file of another one of the plurality of device storage media, and so on. The first identical file and the second identical file listed in the identical file list may be a first similar file and a second similar file, respectively, where the first similar file may be a device file of another one of the plurality of device storage media, the second similar file may be a device file of another one of the plurality of device storage media, and so on.

Further, step 230 specifically includes merging, updating and storing device file lists uploaded by all user devices (which may refer to a plurality of user devices such as the user devices 150, 150a, 150b, other user devices, etc. according to actual conditions) by the server 110, wherein the device file lists include device file lists in at least one device storage medium uploaded by all user devices, and each device file list includes file features; the server 110 compares the file characteristics uploaded by each user device, calculates, generalizes, compares and generates the same file list. Moreover, the number of the same files listed in the same file list is not limited, and not only the same files (as shown in the following table one) but also similar files (as shown in the following tables two and three) can be listed, and the number of the listed similar files is not limited, and depending on whether the similarity of the feature values is close to each other, there are a plurality of similar files which possibly meet the threshold, and the same files and similar files in different storage media in the same user device can be listed, and the same files and similar files in different storage media between different user devices can be listed.

For example, the same file list according to the present invention may be listed in the following table one, table two and table three, wherein the same file list at least includes file names of device files, stored user devices and file attributes (no specific details of the file attributes are listed), table one indicates that the same device file is stored in three user devices, table two indicates that similar photos taken at the same/similar time in the same scene in the three user devices, and table three indicates similar photos taken at the same/similar time in the same scene in two user devices.

List one

File name	User device	File attributes
			Document one doc	Smart phone	File attributes
Document one (1) doc	Flat computer	File attributes
			Document one (2) doc	Notebook computer	File attributes

Watch II

File name	User device	File attributes
			Photo-similarity-jpg	Smart phone	File attributes
Second-order jpg of similar photo	Smart phone	File attributes
			Similar photo III dng	Smart phone II	File attributes
Similar photo IV dng	Smart phone II	File attributes
			Five, heic similar pictures	Flat computer	File attributes

Watch III

File name	User device	File attributes
			Photo-similarity-jpg	Smart phone	File attributes
Second-order jpg of similar photo	Smart phone	File attributes
			Similar photo three. Jpg	Smart phone	File attributes
Similar photo IV dng	Smart phone II	File attributes
			Five, dng similar pictures	Smart phone II	File attributes
Similar photo six. dng	Smart phone II	File attributes

The file management method 200 may further include steps 240, 242. Step 240 includes displaying the same file list 178 by the user interface 155 (e.g., screen, and the invention is not limited thereto) of the user device 150. Step 242 includes providing the user device 150 to select at least one of the second identical file 143 and the third identical file through the identical file list 178 to delete the second identical file 143/the third identical file or to synchronously update the second identical file 143/the third identical file to be identical to the first identical file 183 after the first identical file 183 performs the operation event (such as copying, moving, deleting, adding, modifying, renaming, compressing, decompressing, and not limited thereto). Thus, the file management method 200 can enable the user to continue to use the current user device 150 to manage duplicate files without changing the usage habit of the user. Furthermore, the file management method 200 can allow the user to maintain own data ownership and control right without transferring the user's file.

Further, when the user browses or selects a certain device file 181 on the user interface 155, the same file list of all files having the same content as the device file 181 can be listed, and the content of the files listed in the same file list is identical to the content of the current device file 181. The same file list may also list similar files of the device file 181, where the file content of the similar files is similar to the content of the current device file 181 in file characteristics, and the similar files may be ranked by the most or less relevant preceding files, but substantially listed by the same file list is the file determined to be more relevant.

The user may also view the device files of all the user devices 150, 150a, 150b globally at the user interface 155, and the same file list may list a first same file, a second same file or more same files, where the first same file and the second same file are identical to other same files in content, and the same files may be displayed in the same browsed area and explicitly indicate that the contents of the files are identical. The same file list may also list a first similar file, a second similar file, or more similar files, where similar files are similar in file characteristics to each other, and the similar files may also be displayed in the same browsed block and explicitly indicate that the contents of the files are similar and related in a certain characteristic.

The file management method 200 may further include steps 250, 252, 254. Step 250 includes updating, by the file characteristic generating unit 164 of the user device 150, at least one file characteristic of the first identical file 183 after confirming, by the file listening unit 166 of the user device 150, that the first identical file 183 is subjected to the operation event. Step 252 includes updating the device file list 171 by the user device 150, and step 254 includes notifying the server 110 by the sending and receiving unit 168 of the user device 150, the device communication module 154, to correspondingly update the device file list 171 of the server 110. Thus, the file management method 200 can effectively and conveniently manage data and use services without greatly increasing the cost of the user. Specifically, the user can manage the same, similar files and classified blocks through the sending and receiving unit 168 of the user device 150, the device file management application 161 sends notification to the target user device (e.g. the user devices 150a and 150 b) through the publish/subscribe service, and after the target user device receives and parses the information of the operation instruction, the target user device can perform corresponding management operation on the same file, and after the target user device successfully operates the device file, the target user device can synchronize the transaction content with the distributed server. Further, the first server 110 can add, delete, modify, and maintain file characteristics of the device files 181 stored in the second server 110, and the file characteristics are uploaded to the second server 110 by the user device 150; if the user deletes the device file 181 from the user device 150, the second server 110 will not store the file characteristics of the device file 181, i.e. delete the file characteristics of the device file 181; if the user modifies the device file 181 in the user device 150, the first server 110 will search for the uploaded modification data and correspondingly modify the file characteristics of the device file 181 stored in the second server 110.

Fig. 2B is a flowchart illustrating another management mode of the file management method 200 according to the second embodiment. Referring to fig. 2B, the file management method 200 may further include steps 260 and 262. After performing steps 210, 212, 214, 216, 218, 224, 226, step 260 includes comparing, by the feature comparison unit 122 of the server 110, the plurality of device files 181 and the plurality of server files 141 according to the device file list 171 and the server file list 131 in the file list database 137 to obtain a file classification list 179 listing a first classification file 184 (as shown in fig. 1C), a second classification file 144 (as shown in fig. 1B), and a third classification file (not shown in fig. 1B), where the first classification file 184, the second classification file 144, and the third classification file have at least one of the same or similar text features, character features, object features, and scene features. Step 262 includes the user device 150 accessing the file sort list 179 in the server 110 through the application program interface 129 of the server 110, and transmitting the file sort list 179 to the user device 150 by the server communication module 114 of the server 110. Thus, the file operation in the complex storage system can be further simplified by the feature comparison unit 122 of the server 110. The first classification file 184 is one of the plurality of device files 181 of the user device 150, the second classification file 144 is one of the plurality of server files 141, and the third classification file is one of the device files of any one of the user devices 150, 150a, 150 b. In addition, according to the file management system and the method thereof of the present invention, according to the comparison result of the feature comparison unit of the server, the file classification list may only list the first classification file and the second classification file, may only list the first classification file and the third classification file, and may also list any combination of classification files in the plurality of device files and the plurality of server files.

While the present invention has been described with reference to the embodiments, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention, and it is intended that the scope of the invention be limited only by the appended claims.

Claims

1. A file management system, comprising:

The server comprises a server processor and at least one server storage medium, wherein the at least one server storage medium is in communication connection with the server processor and comprises a plurality of server files, and one of the plurality of server files is a server file management application program; and

At least one user device communicatively connected to the at least one server and comprising a device processor and at least one device storage medium, wherein the at least one device storage medium is communicatively connected to the device processor and comprises a plurality of device files, one of the plurality of device files being a device file management application;

Wherein, based on the server file management application and the device file management application, the file management system is configured to:

generating, by the user device, at least one file feature for each of the device files;

Scanning each of the device files by the user device and generating a device file list including the at least one file characteristic of each of the device files;

transmitting, by the user device, the device file list to the server;

accessing, by the user device, each of the server files and generating at least one file characteristic for each of the server files;

Scanning each server file by the user device and generating a server file list, wherein the server file list comprises the at least one file characteristic of each server file;

transmitting, by the user device, the server file list to the server;

The server compares the device files with the server files according to the device file list and the server file list to obtain a same file list which lists a first same file and a second same file, wherein the first same file and the second same file are the same or similar, the first same file is another one of the device files, and the second same file is another one of the server files;

Transmitting, by the server, the same file list to the user device;

Displaying, by the user device, the same file list; and

After the first identical file performs an operation event, the user device is configured to provide a user with a selection of the second identical file through the identical file list, so as to delete the second identical file or update the second identical file synchronously to be identical to the first identical file.

2. The file management system of claim 1, wherein the at least one server is a plurality of servers, and wherein the plurality of servers are distributed servers.

3. The file management system of claim 1, wherein the at least one file feature is at least one of a file fingerprint and a feature vector, wherein the file fingerprint is generated by the user device by a high collision resistant cryptographic hash function of at least a portion of the contents of each of the device files or the feature vector is generated by a deep learning model.

4. A file management method for at least one server and at least one user device communicatively coupled thereto, the user device comprising at least one device storage medium comprising a plurality of device files, the file management method comprising:

transmitting, by the user device, the device file list to the server;

The server compares the device files according to the device file list to obtain a same file list, wherein the same file list lists a first same file and a third same file, and the first same file and the third same file are the same or similar; and

The same file list is transmitted to the user device by the server.

5. The method of claim 4, wherein the at least one user device is plural, and two of the plurality of user devices respectively include the first identical file and a third identical file.

6. The method of claim 4, wherein the at least one device storage space of the at least one device storage medium includes the plurality of device files, the method further comprising:

Generating, by the user device, a device identification code representing the user device and a space identification code representing the device storage space; and

The device identification code and the space identification code are transmitted to the server by the user device.

7. The file management method according to claim 4, further comprising:

Displaying, by the user device, the same file list; and

After the first identical file performs an operation event, the user device is configured to provide a user with a selection of the third identical file through the identical file list to delete the third identical file or to update the third identical file synchronously to be identical to the first identical file.

8. The file management method according to claim 7, further comprising:

after the operation event is performed on the first identical file, updating the at least one file characteristic of the first identical file by the user device;

Updating, by the user device, the device file list; and

The user device notifies the server to correspondingly update the device file list of the server.

9. The method of claim 7, wherein the at least one server comprises at least one server storage medium comprising a plurality of server files, the method further comprising:

transmitting, by the user device, the server file list to the server;

the server compares the device files with the server files according to the device file list and the server file list to obtain the same file list, derangement of the same file list is used for obtaining a second same file, the first same file and the second same file are the same or similar, and the second same file is one of the server files; and

After the first identical file performs the operation event, the user device is configured to provide the user with the selection of the second identical file through the identical file list, so as to delete the second identical file or update the second identical file synchronously to be identical to the first identical file.

10. The file management method according to claim 4, further comprising:

The server compares the device files according to the device file list to obtain a file classification list which lists a first classification file and a third classification file, wherein the first classification file and the third classification file have at least one of the same or similar character characteristics, person characteristics, object characteristics and scene characteristics; and

The file sort list is transmitted by the server to the user device.