197 results about "Document storage" patented technology

The invention relates to the technical field of intelligent railways, and provides a method for constructing a railway multi-mode knowledge base question-answering system of a hybrid RAG architecture, which comprises the following steps: 1, deploying and finely adjusting a local model of a server; 2, data processing and database establishment; establishing a railway specification knowledge base database management system based on a MongoDB content memory and a PostgreSQL vector retrieval library; for multiple groups of data, search results are optimized and merged based on hybrid retrieval and an RRF algorithm, and finally reordering and search filtering are carried out; 3, constructing a multi-modal knowledge base; the method comprises the following steps of: embedding pictures and texts into a vector database by using multi-modal embedding, storing corresponding original pictures and texts in a document storage, acquiring pictures in the document storage during hybrid similarity retrieval, and transmitting the original pictures and text blocks to a large model to generate answers; and 4, multi-platform expansion. According to the method, the railway multi-mode knowledge base question-answering system can be well constructed.

Systems and methods are provided for implementing deep search functionality using large language models (“LLMs”). In various examples, a computing system uses at least one LLM to generate intents based on a user query, to generate alternative queries based on a selected or identified primary intent, and to generate a relevance score for each search result that is obtained from a search utility (e.g., an Internet search engine, a file storage search utility, an email search utility, or a document storage search utility) in response to a primary query (corresponding to the primary intent) and the generated alternative queries being entered into the search utility. The search results from the search utility are sorted based on the corresponding generated relevance scores, and the sorted search results are caused to be displayed to the user as a deep search response to the user query.

The invention relates to the technical field of file storage, and discloses a method and a system for storing multiple concurrent large files. According to the method and the system, the format and the size of a file are verified, a unique file name is generated and used for identifying metadata of a storage file and outputting the file, each small block of the file is divided into a fixed size and is divided into small blocks, a unique identifier is generated for each small block, a database is connected, and the metadata of the file is stored in the database. Then traversing each small block, selecting a storage node for each small block, uploading the small blocks by using multiple threads, setting a request queue, processing file uploading and downloading requests in sequence, avoiding concurrent write-in conflicts of the same file by using a lock mechanism for file uploading, and reading and controlling a read request through a read-write lock; and acquiring the information of the storage file from the database, acquiring each small block by utilizing a concurrent downloading mode, recombining the small blocks into an original file in sequence after downloading is completed, and performing integrity verification after file recombining.

The invention provides a photovoltaic knowledge question-answering method, system and device based on a ReAct architecture, and relates to the technical field of photovoltaic information. The method comprises the steps that a photovoltaic industry knowledge base is obtained, original photovoltaic industry knowledge documents are processed through analysis, abstract generation and abstract vectorization, and a three-layer storage structure containing an abstract vector index table, a document metadata table and a complete document storage library is formed; obtaining a user question, initializing a ReAct cycle and creating a memory storage structure according to the user question and a retrieval tool set constructed based on the three-layer storage structure; the ReAct circulation is executed until the end, and each round of circulation comprises the steps that questions, system cue words and memory data are integrated to generate a context, a round tool and parameters are obtained through reasoning of a large language model, and accordingly the tool is called to retrieve a knowledge base, update memory and remove duplication; after the loop is terminated, an answer is generated based on the memory data. According to the method, when the photovoltaic problem is solved, the key diagnosis link and the solution can be deeply given out without omitting the key diagnosis link and the solution.

The invention relates to a retrieval routing optimization method and device based on a distributed retrieval system, and relates to the field of computer technology distributed retrieval, the method comprises the following steps: obtaining inverted metadata of a document, including routing information, fragmentation information and a document storage identifier, judging whether the document is a new document, and combining the resource state and availability of each node to optimize the retrieval routing optimization of the document. And determining an optimal routing path by adopting an optimal execution fragmentation formula. A retrieval request is split into a plurality of sub-requests and is directionally issued to a target fragment, and the coordination node integrates return results of the fragments and then returns the return results to the client. The device comprises an information integration module, an inverted metadata recorder and a retrieval routing control module, and supports a dynamic configuration routing strategy, a document state refreshing mechanism and performance monitoring parameters. By introducing the document state identifier, the dynamic routing algorithm and the node resource monitoring mechanism, accurate routing and efficient processing of the retrieval request are realized, so that the retrieval performance and the resource utilization rate of the system are improved.

The invention provides an archive information storage method and system, and relates to the technical field of data processing, and the method comprises the steps: obtaining the access frequency and storage time of each archive file in a preset time interval; classifying the archive files according to the access frequency and the storage time, adding classification labels, and dividing the archive files into high-frequency use files and low-frequency use files; obtaining a file storage state of the archive file, wherein the file storage state comprises a file storage format, a file storage medium and a file index mode; judging whether the file storage state of the archive file is matched with the access requirement corresponding to the classification tag or not; and if not, adjusting the file storage state of the archive file according to the access requirement corresponding to the classification tag. According to the scheme, the file storage state of the archive file can be flexibly adjusted according to the access requirements and storage time of different archive files, and the long-term readability of the archive file is ensured on the premise that the access efficiency of the archive file is ensured.

The present invention relates to the field of data processing technology, and discloses a batch document intelligent management system and method based on edge algorithm, the system comprising: a document collection module counts all documents uploaded in the edge computing data layer, performs cluster analysis on all uploaded documents according to key features, a document analysis module determines the influence coefficient of each document according to the document size and word proportion, a document judgment module compares the average influence coefficient with the average influence coefficient threshold, determines the document storage set of each document in the document series according to the comparison result, compares the document keywords of each document in the document storage set, determines whether to store it in the document storage subset according to the comparison result, and a document management module determines the management score of the document storage subset according to the storage status, and determines the document management level of the document storage subset according to the management score. The present invention realizes intelligent management of documents by utilizing edge algorithms and performing data processing on them.

This item is a folder. The folder of this item is used to hold and store documents. As shown in the reference front view showing the names of the parts, the folder of this item has a front cover, a back cover, and a wrapper. The front cover and the back cover each have a roughly rectangular shape with a long side and a short side. The wrapper is connected to one of the two edges along the short side of the back cover via a first fold. The wrapper has a second fold parallel to the first fold and spaced a predetermined distance from the first fold. A third fold is provided between the back cover and the front cover. The back cover has a ridge portion on the edge opposite to the edge where the wrapper is connected, out of the two edges along the short side. The ridge portion can display the names of documents to be held in the folder of this item. The folder of this item is used in a state where it is folded along the third fold and the back cover and the front cover overlap, as shown in the reference front view showing the usage state and the reference back view showing the usage state. At this time, as shown in the reference perspective view, the wrapper is folded so as to be positioned between the back cover and the front cover. The wrapper is folded at the first fold as shown in the reference front view with the front cover open in the use state, but depending on the number of documents to be sandwiched, it can also be folded at the second fold. The folder of the present item is stored in the document storage shelf with the ridge portion positioned at the front and the third fold in contact with the storage shelf surface of the document storage shelf. The folder of the present item can be smoothly inserted and removed by the third fold sliding against the storage shelf surface. The ridge portion is disposed shifted toward the cover side from the center line in the short direction of the back cover. The ridge portion has a first inclined portion on the side closer to the cover and a second inclined portion on the side farther from the cover. Comparing the inclination angle of the first inclined portion with respect to the short direction of the back cover and the inclination angle of the second inclined portion with respect to the short direction of the back cover, the inclination angle of the second inclined portion is smaller and is inclined more gently. The second inclined portion has a slightly recessed concave shape. The second inclined portion is located on the upper side when the folder is stored in the document storage shelf. When a user takes out the folder from the document storage shelf, the user can hold the folder with the peak portion located between the user's thumb and index finger. At this time, the area near the base of the user's thumb can easily fit into the concave shape, allowing the user to stably hold the folder.The second inclined portion has a gentle inclination angle, so that the ridge portion is less likely to bend or tear, and the area of ​​the ridge portion is wider, so that information such as the name of the document can be easily displayed. The cover has a cut portion at a position corresponding to the ridge portion when the folder of the present article is folded at the third fold to overlap with the back cover. The cut portion is cut steeply on the side corresponding to the first inclined portion, and cut gently on the side corresponding to the second inclined portion. The provision of the cut portion makes it easier to see the information displayed on the ridge portion. When a user takes out the folder of the present article stored in the document storage shelf, the user can grasp the vicinity of the ridge portion located on the front side. The user can place the taken-out folder of the present article on the desk surface with the ridge portion facing the user. The user can then open the cover and then open the wrapper. Since the wrapper is opened to the side away from the user, it does not occupy space on the front side of the desk surface, and the user can secure a working space in front of the folder of the present article.

A method includes creating a document retrieval and large language model architecture including at least one vector database including vectorized data corresponding to one or more documents from one or more document storage locations and a large language model. The method also includes receiving a query to generate a report associated with a current project using the large language model. The method also includes returning, in response to the query, a relevant context generated using the at least one vector database. The method also includes generating and outputting, using the large language model and based on the relevant context, one or more portions of the report.

The application provides a large language model power grid regulation system semantic retrieval method based on a knowledge graph, and the method comprises the following steps: obtaining a regulation document through a company regulation document storage system API call, inputting the regulation document into a semantic recognition model after structure recognition processing, outputting a provision semantic unit set, constructing a double-structure knowledge graph suitable for a power grid regulation system retrieval scene based on the provision semantic unit set, mapping a natural language question input by a user into a structured semantic representation, completing multi-hop retrieval of a provision set related to the semantic of the question of the user and a path structure thereof, matching all path structure representations with the structured semantic, and taking the first several paths with the highest cosine similarity scores as retrieval results. A structure-driven retrieval system capable of realizing responsibility chain reconstruction and path closed-loop semantic output is constructed, and a reliable semantic retrieval scheme is provided for key businesses such as power system compliance query, fault review and responsibility positioning.

1. The name of this design product: File storage rack. 2. The use of this design product: For storing items. 3. The design key points of this design product: Lie in the shape. 4. The picture or photo that best shows the design key points: Perspective view.

The invention provides a knowledge graph fused large language model power grid rule and regulation semantic retrieval method, which comprises the following steps of: calling and obtaining a rule document through a company rule document storage system API (Application Program Interface), performing structure recognition processing on the rule document, inputting the rule document into a semantic recognition model, outputting a term semantic unit set, and storing the term semantic unit set into a database; a double-structure knowledge graph suitable for a power grid rule and regulation retrieval scene is constructed based on a clause semantic unit set, a natural language question input by a user is mapped into structured semantic representation, and multi-hop retrieval of a clause set related to user question semantics and a path structure of the clause set is completed. All path structure representations are matched with structured semantics, and the first several paths with the highest scores according to cosine similarity serve as retrieval results. A structure-driven retrieval system capable of realizing responsibility chain reconstruction and path closed-loop semantic output is constructed, and a reliable semantic retrieval scheme is provided for key businesses such as compliance query, fault redisk and responsibility positioning of a power system.

The invention relates to the field of data access, and discloses a document security access method and device based on a block chain, equipment and a storage medium. The method comprises the following steps: storing identification information and encrypted data characteristics of a document in the block chain; setting a permission configuration strategy of the document through a preset configuration logic of the block chain; performing identity and permission verification on the user based on the permission configuration strategy, and storing verification-related interaction information in the block chain; and performing data recovery or integrity verification on the document based on the encrypted data features and the identification information stored in the block chain. According to the document security access method based on the block chain provided by the invention, the security and reliability of document storage are improved and auditing and recovery processes are simplified by utilizing the characteristics of decentralization, tampering resistance and transparency of the block chain.

A system and method for distributed storage and release of print jobs with a networked fleet of multifunction peripherals (MFSs) employs the Interplanetary File System (IPFS) for document storage with document metadata and document transactions stored on a blockchain housed on nodes formed by the multifunction peripherals. A user sends a print job to the network via a print driver on their local device. The print job is stored in the IPFS by the print driver, and the metadata and document transactions are hashed and stored to the blockchain which is managed by MFP consensus. The print job may be accessed via its content at any MFP for release and printing. Access and printing information is also added to the blockchain.

The invention provides a document storage method, an intelligent question answering method and system, equipment and a medium. The storage method comprises the following steps: acquiring a to-be-analyzed document; performing type identification on the document, and extracting document content from the document based on the identified document type; calculating semantic similarity between the document content and a plurality of pre-stored standard classification contents, and determining a content category corresponding to the document according to the semantic similarity; wherein each standard classification content corresponds to one content category; performing chapter division on the document content, and determining a chapter abstract of each chapter; wherein each chapter corresponds to one chapter abstract; performing semantic recognition on each chapter, and segmenting each chapter into a plurality of semantic segments; and according to the hierarchical relationship among the content category, the chapter abstract and the semantic fragment, performing structured storage on the document. According to the method and the device, the adaptation capability to multi-source heterogeneous documents is improved, and more accurate and finer-grained structured information extraction of complex document contents is realized.

The disclosure for a method for providing information. The traditional methods of managing information within vehicles, such as physical document storage and manual verification processes, are plagued by security vulnerabilities, limited accessibility, and organizational challenges. Stand-alone digital storage devices and cloud-based solutions offer alternatives but come with their own set of concerns, including security risks and dependence on internet connectivity. To address these shortcomings, the present disclosure proposes a comprehensive solution for securely managing and accessing information within the vehicle environment. By leveraging electronic devices within vehicles, encryption techniques, user authentication methods, and dynamic document management, the present disclosure ensures both security and convenience. This integrated approach enhances user experience, facilitates emergency response, and minimizes the risk of document loss or damage. The present disclosure represents a significant advancement in information management within vehicles, offering practical solutions to longstanding challenges.

This document discloses a method and system for assessing integrity of a stack of ballots or other documents. A processor receives a first set of electronic source document files, each of which includes content of a corresponding source document. The processor generates a verification image, segments the verification image into slices, and causes a print device to print verification document sheets. Each verification document sheet includes data from one of the source electronic document files and, on an edge of the sheet, a unique one of the slices of the verification image. The verification document sheets are stacked so that the slices appear on a side of the stack and, when all of the verification document sheets have been placed onto the stack, the slices collectively form the verification image.

The utility model belongs to the technical field of file storage cabinets, and particularly discloses a moisture-proof file storage cabinet which is characterized in that a drying box is located at the position, close to the bottom, in the file storage drying cabinet, one end of the drying box is flush with the outer wall of the file storage drying cabinet, the interior of the drying box is of a hollow structure, and two symmetrical supporting plates are arranged in the drying box; the supporting plate is fixedly connected with the inner wall of the drying box, and one end of the filter screen extends to the outer side of the drying box; the drain pipe is located at one end of the drying box. One end of the drain pipe is sleeved with a sealing cover for sealing. A calcium chloride dehumidification particle layer is arranged on the top of the filter screen in the drying box, the calcium chloride dehumidification particle layer is poured into the drying box, the calcium chloride dehumidification particle layer is blocked by the filter screen, and the calcium chloride dehumidification particle layer is subjected to a physical reaction to be converted into liquid after being alkaline and absorbing moisture; moisture in the file storage drying cabinet is adsorbed and converted into liquid, and then the liquid is filtered by the filter screen and accumulated in the drying box, so that the interior of the file storage drying cabinet is kept dry.

The invention provides a context reconstruction method and system based on father-child document matching, and the method comprises the steps: firstly obtaining a target father document and an associated child document set thereof, the child document set comprises a plurality of child document units, and each unit comprises a context paragraph and a paragraph identifier; extracting global structure features including paragraph hierarchical distribution and title nesting depth, and local content features including paragraph core word sequences and semantic coherence indexes; determining hierarchical membership relation parameters of the sub-document unit paragraph identifiers and the parent document according to the sub-document unit paragraph identifiers, matching context paragraphs with corresponding paragraph hierarchies, performing dynamic semantic alignment processing including paragraph boundary calibration and semantic redundancy elimination on the context paragraphs on the basis of the characteristics, generating reconstructed context data blocks, and storing the reconstructed context data blocks in the parent document. And generating a target parent document optimization version and outputting the target parent document optimization version to a document storage system to trigger version updating operation.

The invention relates to the technical field of electronic document management, and discloses an electronic document management system oriented to a micro-service architecture. Comprising a user authority management micro-service module, a document storage micro-service module, a document retrieval micro-service module, a document editing micro-service module, a document encryption and security micro-service module, a workflow and approval micro-service module and a micro-service database. According to the electronic document management system oriented to the micro-service architecture, the micro-service architecture in the system allows each service to independently allocate resources according to the load demand of the service, and when a document storage micro-service processes uploading or downloading of a large number of documents, more internal memories and storage resources are rapidly obtained, and the system is convenient to use. The document retrieval micro-service can use computing resources as needed when executing complex query, through targeted resource allocation, the performance bottleneck caused by unreasonable resource allocation in a traditional single framework is avoided, and the resource utilization efficiency of the system and the response speed and processing capacity of the system are improved.

The application relates to the technical field of file storage equipment, in particular to a file safe storage device and an operating method, which comprises a mobile hard disk, the mobile hard disk is slidingly installed in a hard disk box, one side of the hard disk box is provided with a plug-in plate, the other side of the hard disk box is abutted with an anti-falling cover, slots are formed in the two sides of the anti-falling cover, the slots are slidably connected with one end of plug-in blocks, the other end of the plug-in blocks is provided with a transmission assembly, the transmission assembly comprises a first connecting plate, a second connecting plate and a third connecting plate, one side of the third connecting plate is rotationally connected with a connecting block, the connecting block is fixedly sleeved at the top of a sliding rod, and the bottom of the sliding rod is slidingly sleeved in a fixed block; one end of the hard disk box is plugged with the plug-in plate, so that the falling of the mobile hard disk is preliminarily prevented; the anti-falling cover is buckled on one side of the hard disk box, so that the falling of the mobile hard disk is further prevented; the plug-in blocks are plugged into the slots, so that the anti-falling cover is limited and fixed, and the anti-falling cover is further prevented from loosening, so that the mobile hard disk is also prevented from falling due to vibration after being plugged.

The utility model discloses a data storage rack, which belongs to the technical field of storage racks and comprises a protective box, at least three drawers are mounted in the protective box in a sliding manner, and a first illuminating lamp positioned above each drawer is arranged in an inner cavity of the protective box; a storage rack body is movably mounted in the drawer; the storage rack body comprises an upper placing rack, a middle placing rack and a lower placing rack. The drawers can be drawn out to the maximum state, then the storage rack body is pulled open, a user can conveniently store, take and look up files, when the files need to be stored in the protective box, the storage rack body can be closed, the drawers are closed in the protective box, and therefore the files can be stored in the protective box, and compared with a traditional open type storage cabinet, the storage rack is convenient to use and use. The foldable storage rack is small in occupied space after being folded, the space utilization rate is effectively improved, and compared with a traditional cabinet type storage rack, the flexibility of the foldable storage rack is greatly improved.

The objective is to provide a document storage bag that helps prevent documents from being forgotten or left out. [Solution] The document storage bag 1 comprises a first sheet 110 and a second sheet 120, which are arranged opposite each other in the thickness direction X and are made of transparent material; a partition plate 130, which is placed between the first sheet 110 and the second sheet 120; a connecting part 140, which connects the first sheet 110 and the second sheet 120; and an opening / closing connecting part 150, which connects the first sheet 110 and the second sheet 120 so as to be openable and closable. The first sheet 110 is provided with a first sheet pattern 200 consisting of a predetermined design, and the partition plate 130 is provided with a partition plate pattern 300 consisting of a predetermined design different from the first sheet pattern 200.

The utility model belongs to the field of enterprise management, and particularly relates to a file storage device which comprises a placing frame, a plurality of partition plates are arranged in the placing frame, a storage frame is arranged above each partition plate in a sliding mode, a plurality of first long grooves are formed in the side wall of one side in each storage frame, and second long grooves are formed in the side walls of the two sides of each first long groove. A plurality of clamping holes are formed in the second long groove, a classification fixing plate is rotationally arranged in the first long groove, a rotary clamping assembly is arranged at one end of the classification fixing plate, elastic pieces are arranged on the two sides of the other end of the classification fixing plate, and a plurality of third long grooves are formed in the side wall of the other side in the storage frame. A plurality of clamping teeth are arranged on the side walls of the two sides of each third long groove. According to the file classification frame, the structures such as the classification fixing plates are arranged, so that when the file classification frame stores files, the classification fixing plates can be rotated and moved to carry out hierarchical processing on the types of the stored files, and the time for searching the files is effectively saved.

This utility model discloses a project management document storage device, including an assembly, an adjustment component, and a moisture-proof component. The adjustment component is located in the middle of the assembly, and the moisture-proof components are located on both sides of the assembly. Each moisture-proof component includes a fixed frame, a through hole, a drawer, and a moisture-proof layer. The fixed frame has a through hole in its middle, and the drawer is located inside the fixed frame. In this project management document storage device, elastic buckles are provided at both ends of a support plate, allowing for position adjustment within the cabinet. The support plate is made of iron. A baffle is then magnetically attached to the iron support plate via a bottom magnetic block, limiting the placement of project management document folders. The storage device includes a monitoring block and a display screen. An internal probe on the monitoring block positions the project management document folders for quick retrieval. Finally, a desiccant is placed inside the drawer to prevent moisture damage to the documents inside the cabinet.

The utility model provides a file storage device, which relates to the technical field of storage appliances and particularly comprises a storage main body, a limiting mechanism and a locking component, the storage body comprises a box body and a box cover, the box body is provided with a box opening and a rotating shaft, the rotating shaft is located on the edge of the box opening, and the box cover is rotationally connected with the box body through the rotating shaft. The limiting mechanism comprises an elastic reset piece and a pressing piece, the elastic reset piece is arranged on the box body, one end of the pressing piece is connected with the other end of the elastic reset piece, and the end, away from the elastic reset piece, of the pressing piece extends into the box body. After files are placed in the box body, the end, away from the elastic reset piece, of the pressing piece presses the files stacked in the box, when the files need to be taken and placed, the end of the pressing piece can be manually lifted up so that the files can be taken out or placed in, the pressing piece and the elastic reset piece can be matched to continuously press the files, the files are prevented from moving in the box, and the files are prevented from being damaged due to friction. And during carrying or moving, the files are prevented from falling off, and the files in the box are effectively protected.

The disclosure for a method for providing information. The traditional methods of managing information within vehicles, such as physical document storage and manual verification processes, are plagued by security vulnerabilities, limited accessibility, and organizational challenges. Stand-alone digital storage devices and cloud-based solutions offer alternatives but come with their own set of concerns, including security risks and dependence on internet connectivity. To address these shortcomings, the present disclosure proposes a comprehensive solution for securely managing and accessing information within the vehicle environment. By leveraging electronic devices within vehicles, encryption techniques, user authentication methods, and dynamic document management, the present disclosure ensures both security and convenience. This integrated approach enhances user experience, facilitates emergency response, and minimizes the risk of document loss or damage. The present disclosure represents a significant advancement in information management within vehicles, offering practical solutions to longstanding challenges.

The present invention relates to the technical field of stamping devices, and specifically to an integrated device for automatic stamping, scanning and binding, which comprises a base. It is characterized in that a document storage box, a Y-axis moving module, an X-axis moving module, a stamping device, a scanning device, a paper moving mechanism and a binding device are arranged on the base; the Y-axis moving module is slidably connected to the base and can move along the Y-axis direction; the X-axis moving module is connected to the Y-axis moving module and can move along the X-axis direction; the stamping device is connected to the X-axis moving module and is arranged above the document storage box; the scanning device is connected to the base through a scanning bracket and is arranged above the base; the paper moving mechanism is connected to the base and is arranged on one side of the X-axis moving module; the binding device is connected to the base and is arranged on one side of the paper moving mechanism. The present invention can realize the integrated automatic stamping, scanning and binding process of the device, saving manpower and time and improving the efficiency of stamping, scanning and binding documents.

The utility model provides a file storage device and system, which comprises a cabinet body, a plurality of storage drawers, a locking mechanism and a control mechanism, the cabinet body comprises a storage cavity and a separation structure, and the separation structure divides the storage cavity into a plurality of storage grooves; the storage drawers are arranged in the corresponding storage grooves in a sliding mode, and guide mechanisms are arranged between the storage drawers and the corresponding storage grooves; the locking mechanism comprises a plurality of locks, and the locks are arranged between the storage drawers and the cabinet body. The control mechanism comprises an identity recognition module, a control panel and a control module. The control module is used for controlling the corresponding lock based on a recognition signal of the identity recognition module. According to the utility model, the identification function can be realized through the identity identification module so as to obtain the identity and authority of an operator, and the control module can control the opening of a corresponding lock based on an identification signal of the identity identification module, so that the function of storing or taking out a corresponding file is realized, and the confidentiality of a project cost technical file is ensured.

The utility model discloses an assembly type multi-layer document cabinet, which relates to the technical field of document cabinets, and comprises a lower supporting seat main body, a fixed base is fixedly arranged on the upper surface of the lower supporting seat main body, a plurality of rolling steel balls are arranged on the top of the fixed base, and the same supporting top ring is arranged on the plurality of rolling steel balls. And annular grooves corresponding to the rolling steel balls and the supporting top ring are formed in the top of the fixing base, a bottom plate is clamped to the top of the supporting top ring, and a fixing column is fixedly connected to the center of the upper surface of the bottom plate. According to the document storage device, the motor with the number of layers needing to be stored and taken is started, the second gear and the meshed first gear are driven to rotate synchronously, and therefore the rotating column is driven to rotate, the document storage mechanism is driven to rotate, then the document storage cavity needing to be stored or taken is rotated to the notch to be stored and taken, and through the layered rotating mode, the storage efficiency is improved. The whole device does not need to be rotated manually, time and labor are saved, and the practicability of the device is improved.