33results about How to "Realize decentralized storage" patented technology

The invention discloses a converting method from an open EHR Template to a relation database. The converting method includes the steps: analyzing an open EHR prototype, and building a prototype object model; restraining the prototype object model, and building a template object model; generating an entity object meeting JPA standards; mapping the entity object into a specific database table; analyzing an inputted AQL (acceptable quality level) statement to generate an operating statement of the database table; running the database table, and operating the AQL statement to obtain corresponding data operation results; generating a new data result dADL file, and returning the dADL file to a calling party. According to the method, storage data corresponding to the database table are constructed through the open HER template, data of each open HER template example are stored into the corresponding database table, the data are dispersedly stored and can be accessed according to specific database table, data access performance is improved, and the requirements of actual medical businesses can be met.

The invention provides a user-defined form description and form analysis method including steps of firstly, inputting description information of a management form through a form description information configuration module and adding data index, field storage modes and description of form storage field corresponding to form controls into the description information; secondly, analyzing to acquire form configuration and saving the same through a server; thirdly, using data to access to an agent level, and loading configuration in a form running link in a data agent mode according to the form configuration data which are saved on the server side by the form configuration module. In a user-defined form system, user defining of data storage structures is realized through a data agent module, scatter storage of the data is achieved without increase of complexity in data query and storage, and the bottleneck of data access of the system can be broken through easily.

The invention provides a file processing method. The method is applied to a first user side and comprises the steps that after it is confirmed that primary user registration and identity verificationare passed, generating a public key and a private key which are matched with each other, the first user side stores the private key locally, and a DAPP registers the public key uploaded by the first user side to a Fabric network through a preset Fabric node; when a file uploading signal is detected, obtaining a to-be-uploaded file, and obtaining a public key; encrypting the to-be-uploaded file byusing the public key, and uploading the obtained first encrypted file to the DAPP; the DAPP splits the first encrypted file into a plurality of file blocks, and stores the file blocks to an IPFS storage node in an IPFS network; and the DAPP stores the node address returned by the IPFS storage node for storing the file block to a preset storage position. The invention further provides a user side,a server and a readable storage medium. The invention aims to provide a decentralized data storage technical scheme which is safe, credible and easy to implement.

The invention requests to protect an electronic evidence storage method based on a block chain smart contract, and the method comprises the steps: carrying out the evidence storage through the smart contract by a evidence storage person, carrying out the query of evidence information through the smart contract by a verification person, carrying out the evidence downloading through the smart contract by a researcher, and carrying out the uploading of an evidence analysis result through the smart contract. The smart contract is a key logic module for realizing the method and exchanges data withthe block chain, so that the integrity, the verifiability and the tamper resistance of the electronic evidence are ensured. And meanwhile, all data operations are recorded on the block chain, so thatthe traceability of the electronic evidence is realized.

The invention belongs to the field of blockchain data sharing, and particularly relates to an electronic prescription sharing method based on blockchain and conditional agent re-encryption, which comprises the following steps: generating common parameters, and initializing sharing nodes; generating a second secret key of the user; enabling an electronic prescription issuer to sign an electronic prescription; enabling the electronic prescription sharer to encrypt the IPFS value and the symmetric key; enabling the electronic prescription sharer to generate a conditional proxy re-encryption key by using the key; allowing the shared person to obtain and verify the electronic prescription; according to the invention, the identity-based key escrow problem is solved through distributed key generation, fine-grained decryption authority delegation of data is achieved through conditional agent re-encryption, and finally safe storage and trusted sharing of electronic prescriptions are achieved incombination with the decentralization and non-tampering characteristics of the blockchain.

The invention provides a social communication method based on a block chain, and the method comprises the steps: building the block chain through social platform regional server cluster nodes, and enabling each cluster node to store the personal data of a user in the block chain. The invention provides a social communication method based on a block chain. The decentralized storage and authentication of the user privacy data in the social network are realized; the authentication process is completed in the block chain, the validity of the user identity is ensured by utilizing the tamper resistance of the block chain, the data abstract is used for replacing a user personal information plaintext, information is matched for the user according to the data abstract, the user privacy informationplaintext cannot be checked even if a malicious attacker intercepts the user information, and the privacy of the user is protected.

The invention provides a data processing system and method. The data processing system comprises a data management server, a first database and a second database. The data management server is connected with the first database and the second database, which is used for dumping data in the pre-set dumping condition from the first database to the second database. Data of the first database is easierto modify than data of the second database. Data of the database is easier to inquire than data of the second database. The data processing system and method realizes reasonable distribution storageof data through a mixed storage mode so that processing efficiency of subsequent data query and data correction is increased.

The invention discloses a cloud document encryption method and device, a cloud document decryption method and device, and a processing system. The cloud document encryption method comprises the steps of encrypting a document body by selecting a corresponding document encryption key based on preset document permission information; encrypting the document encryption key by respectively adopting a product protection key and a mechanism protection key so as to generate a product document encryption key and a mechanism document encryption key, and storing the encryption keys in a document head of a document; calculating based on information stored in the document head to obtain a first Hash value, and storing the first Hash value into the encrypted document body, wherein the document head and the encrypted document body compose an encrypted document, and the information of the document head comprises the product document encryption key, the mechanism document encryption key and the document permission information; and transmitting the encrypted document to a server. The cloud document encryption method realizes scattered storage of document keys, can optimize the storage structure of the document and solves risks in centralized storage of the document keys.

The invention provides a blockchain-based artwork authentication filing method and system, the method comprising: obtaining filing data, and obtaining a filing registration object from the filing data; if the filing registration object is a node in a notarization chain, sending the filing data to the filing registration object for authentication; obtaining authentication information and generating a new block based on the authentication information and the filing data and linking the new block to a notarization chain. The system comprises: a receiving unit configured to obtain the filing dataand obtain the filing registration object from the filing data; a query unit configured to query whether the filing registration object is a node in the notarization chain; an authentication unit configured to send the filing data to the filing registration object for authentication; a new block generation unit configured to obtain the authentication information, generate a new block based on theauthentication information and the filing data and link the new block to the notary chain. The method and system can realize decentralized storage, obtain complete filing data, and synchronize the filing information.

The invention relates to a commodity traceability method and system, and mainly relates to the technical field of block chains and commodity traceability. The method comprises the following steps: constructing a traceability alliance chain, implanting a block chain into the traceability alliance chain, obtaining commodity information and commodity circulation information written by a service module, associating the commodity information and the commodity circulation information with a traceability code of a commodity, and uploading the commodity information and the commodity circulation information to the block chain; and respectively developing and calling each business module and the whole-course blockchain intelligent contract, and respectively realizing whole-course information traceability of each business module and the traceability alliance chain through the traceability code. According to the application, the consumer can trace the whole process of commodity production, storage, distribution, logistics transportation and the like, and the publicity and transparency of the traceability data are realized, so that the consumer can trust the source and brand of the commodity, the transmission of the commodity value can be brought, and the data credibility is improved.

The invention discloses a household multimedia intelligent set top box system which comprises a user side and a browsing side used for accessing an external database, and meanwhile, redundant storagespace of the user side is used for setting up storage space of a cloud server, so that decentralized distributed storage is realized. The user side comprises a processor, IoT equipment and a router chip. The processor is provided with a multimedia interface, a USB interface, a memory card and a memory, has an IOT data transmission function and integrates an Internet of Things communication protocol to realize data interaction between different intelligent devices and the processor, and the processor is connected with a cloud server through a router chip. The router chip is provided with a 5G port to realize connection with the external Internet, so that the home equipment end can communicate with the external Internet through wifi. Meanwhile, a distributed mining function is achieved. Thecombination of 5G network, Internet of Things home and personal data protection is realized, and the system is safer and more reliable.

Embodiments of the invention disclose a data storage method and device, a data search method and device and a data processing system. The data storage method comprises the following steps of: classifying to-be-stored data according to at least one preset dimensionality, and dividing each type of to-be-stored data into N parts, wherein N is the quantity of determined disks and is greater than 1; and respectively storing the N parts of to-be-stored data into the N disks. Visibly, the same type of data is stored in the N disks, so that the dispersed storage of similar data is realized, when datasearch is required, the data is searched in the N disks, and a reading/writing speed allowed by the N disks is much greater than a reading/writing speed allowed by one disk, so that the I/O blocking conditions can be decreased.

The present invention provides a tamper-proofing storage system of network device resource exploration information and a control method thereof, and relates to the field of information safety. The system comprises a base station and a plurality of intelligent devices connected with the base station, the base station and the intelligent devices are all provided with fog computing programs, the basestation is provided with a fog computing center virtual machine, the intelligent devices are provided with a plurality of fog computing sub virtual machines, the sub virtual machines are managed by the center virtual machine, and the center virtual machine and the sub virtual machines are all provided with data packet analysis programs. The tamper-proofing storage system of network device resource exploration information and the control method thereof reduce the computing amount of the base station, improve the large-scale data processing capacity and provide enough computing power for the blockchain technology.

The invention discloses a data evidence storage method and device, an apparatus and a storage medium, and relates to the technical field of block chains. The specific implementation scheme of the method comprises when a data storage instruction triggered by a data provider is detected, encrypting to-be-stored data by adopting a storage key, and uploading the encrypted to-be-stored data to an out-of-chain storage network to obtain an out-of-chain storage identifier of the to-be-stored data; encrypting the storage key based on the account information of the data provider to generate a query key;and based on the out-of-chain storage identifier, the account information of the data provider and the query key, generating a data storage transaction request and transmitting the data storage transaction request to the block chain network, so that the block chain node processes the data storage transaction request and stores the data in the data storage transaction request in an uplink manner.According to the embodiment of the invention, the decentralized storage of the data is realized, the storage efficiency is improved, the storage cost is reduced, the ownership authority of the storeddata is defined, and the security of the data storage is improved.

The invention discloses a traffic network-based big data analysis method and system. The method comprises the following steps of: generating a unique traffic network recognition code; obtaining traffic network data according to the unique traffic network recognition code and generating a time stamp according to the current time; and writing the traffic network data and the time stamp into a blockchain. According to the method and system, the unique traffic network recognition code is generated through utilizing a block chain technology, and the traffic network data is written into the block chain to synchronize data of traffic network equipment in real time, so that decentralized storage and backup of the traffic network data are realized and loss of the traffic network data is avoided.

The invention provides an information security storage and transmission method and device and electronic equipment, and the method comprises the steps: generating an electronic certificate according to the modified information when the modification operation of any information transfer node on the information is received, and enabling the electronic certificate to correspond to the information stored in a data storage center; whether the electronic certificate is legal or not is judged according to an electronic certificate bookkeeping sheet, and the electronic certificate bookkeeping sheet is pre-stored in the block chain and used for recording the circulation process of the information; and if the electronic certificate is illegal, not updating the electronic certificate bookkeeping sheet. According to the method and the device, the electronic certificate recorded in the electronic certificate bookkeeping sheet and the information of the data storage center can be verified, so that the information which is not tampered can be traced. The block chain technology is adopted, information decentralized storage and archive circulation are achieved, the information can be true and credible like a real entity archive in the physical world, and the authenticity, reliability, safety and effectiveness of the information are improved.

The invention provides a multi-terminal system, a data backup method thereof and a storage medium, the multi-terminal system comprises a control device and a plurality of terminals, and the data backup method comprises the following steps: the control device used for issuing a data backup instruction to the plurality of terminals according to a preset data backup strategy; the plurality of terminals used for receiving the data backup instruction and determining that the terminals are source terminals or destination terminals for data backup according to the data backup instruction; wherein data needing to be backed up by each source terminal is backed up to more than two target terminals; if it is determined that the target terminal is the source terminal, data needing to be backed up is sent to the corresponding target terminal for data backup; and if it is determined that the source terminal is the destination terminal, data needing to be backed up is received from the correspondingsource terminal for data backup. According to the scheme provided by the invention, the problem that data cannot be effectively replied when the terminal or the control center breaks down can be avoided, and the data security is protected.

The invention discloses a database optimization method and system, and belongs to the technical field of databases. The database optimization system comprises a storage area division module, a keywordfeature extraction module, a query calling module, a comprehensive analysis module, a clustering processing module and a query optimization module. The storage area division module is connected withthe keyword feature extraction module, the overall planning analysis module is respectively connected with the keyword feature extraction module, the query calling module and the clustering processingmodule, and the query optimization module is connected with the clustering processing module. The invention provides a database optimization method and system. The method comprises the following steps of: extracting keywords from data in each line list in each partition table in a database. The method has the advantages that the extracted keywords are extracted, weight statistics and clustering analysis are performed on the extracted keywords, database search is optimized, hierarchical distribution query is adopted, the query complexity is reduced, the search efficiency is improved, unnecessary repeated links are reduced, the time cost is saved, and the database optimization efficiency is greatly improved.