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38results about How to "With traceability" patented technology

File security control and trace method and system based on digital fingerprints

The invention discloses a file security control and trace method and system based on digital fingerprints. The method includes the file uploading procedure and the file downloading procedure. In the file uploading procedure, when a user uploads files to a file server, the file server starts a natural language analysis program and conducts full-context scanning and matched analysis on file contexts, a position where the digital fingerprints can be inserted is found, a fingerprint feature position list is generated, the fingerprint feature position list and original files are stored in the file server together, the uploading and downloading record list is generated, and information uploaded this time is recorded. In the file downloading procedure, when the user sends a file downloading request to the file server, the file server generates binary random codes with the same length according to the length of the fingerprint feature position list, when the random code corresponding position is 1, the digital fingerprints are inserted in the contexts at the corresponding position, a new file is generated and sent to the user, and meanwhile the downloaded information is recorded in the uploading and downloading record list. By means of the method and system, the context files can be traced back, and the security of the context files is managed.
Owner:陈佳阳 +1

Internal and external network system data transmission encryption method and device, equipment and medium

The invention provides an intranet and extranet system data transmission encryption method and device, equipment and a medium. The method comprises the following steps: generating a first public key,a first private key, a second public key and a second private key through a data encryption and decryption verification center deployed on a gateway server; issuing the first private key and the second public key to a client, and issuing the first public key and the second private key to a server; receiving request information generated by the client based on the first private key via the data encryption and decryption verification center, decrypting request data by using a first public key based on the request information, and directly sending the request data to the server; receiving response information generated by the server based on the second private key via the data encryption and decryption verification center, decrypting response data by using the second public key based on the response information, and directly sending the response data to the client. The method has the advantages that a data exchange function can be realized in an isolated state, a multi-level security mechanism is provided, and cross-network data transmission security can be ensured.
Owner:福建亿能达信息技术股份有限公司

File content secret leakage management system and secret leakage tracing method

The invention discloses a file content secret leakage management system and a secret leakage tracing method. The file content secret leakage management system comprises a secret leakage prevention monitoring unit used for monitoring operation of a user on file contents and triggering a secret leakage processing unit to perform secret leakage prevention processing on the file contents when the userperforms the file content obtaining operation, the secret leakage prevention processing unit used for generating a secret leakage prevention identifier associated with current user information and adding the secret leakage prevention identifier to the file contents, and a secret leakage tracing unit used for performing analysis processing on the obtained secret leakage prevention identifier to trace a secret leakage source. Through the file content secret leakage management system and the secret leakage tracing method, secret leakage of the file contents can be securely and effectively managed; and the leaked file contents can be subjected to accurate tracing of the secret leakage source.
Owner:四川腾云法智互联网科技有限公司

A communication method between router nodes and a switching method thereof

The invention discloses a communication method between router nodes, which comprises the following steps of: carrying out user-defined selection on first transaction data in a standard OSPF working process to enable the first transaction data to become second transaction data matched with blockchain communication; Performing secondary configuration on the nodes based on the standard OSPF workflowto enable the second transaction data between the nodes to be matched with each other so as to realize synchronization; And generating a corresponding block for the second transaction data based on the block chain communication workflow, and adding the block into the block chain after each node verifies the block. The invention provides a communication method between router nodes, which innovatively improves and fuses standard OSPF (Open Service Provider Function) and block chain processes aiming at the opportunity of transmitting or receiving transaction data, only modifies the standard blockchain processes, does not need to modify the OSPF standard processes, ensures compatibility with the existing protocol, and can be interconnected and intercommunicated with the existing network.
Owner:MIANYANG NETOP TELECOM EQUIP

Full automatic intelligent production line of piston

The invention discloses a full automatic intelligent production line of a piston. The production line comprises a charging area, a processing area, a discharging area, a piston conveying line, a PLC control module and an industrial personal computer, wherein the charging area comprises a charging platform, a two-dimensional code marking machine, a robot I and a photoelectric switch; the processingarea comprises a plurality of numerical control machine tools; robots II are arranged on the numerical control machine tools; the discharging area comprises a detecting platform, a discharging platform and a robot III; a piston detector is arranged on the detecting platform; the two-dimensional code marking machine, the photoelectric switch, the robot I, the numerical control machine tools, the robots II, the piston detector and the robot III are correspondingly connected to the PLC control module; and the PLC control module is connected to the industrial personal computer. With the adoptionof the full automatic intelligent production line of the piston, the piston production efficiency is improved; the labor cost is decreased; the product processing reliability is improved; and the difficulty in production management is reduced.
Owner:青岛默森智能科技有限公司

Data asset value evaluation device and method based on block chain

The invention discloses a data asset value evaluation method based on a block chain, and relates to the technical field of block chain application, the block chain comprises a data chain and a value chain, and the asset value evaluation method comprises the following steps: obtaining a data set of data assets, and uploading the data set to the data chain for recording and saving; participating inbidding on the value chain according to the data set by user nodes; calculating bids of the user nodes participating in bidding on the value chain according to an intelligent contract of a preset ruleto obtain a bidding result; and obtaining an evaluation result of the data asset value according to the bidding result, and ensuring that the recording, pricing and transaction processes of the dataassets are all realized on the chain by a'data chain + value chain 'double-chain mechanism, so that the evaluation method has traceability, and the reliability of the evaluation of the data asset value is enhanced.
Owner:STATE GRID ENERGY RES INST +2

Crop seed management system based on radio frequency identification (RFID) tag

The invention provides a crop seed management system based on a radio frequency identification (RFID) tag. The system comprises the RFID tag, a handheld RFID reader, a fixed RFID reader and a seed management computer; the RFID tag is arranged on an outer seed package, and basic information is established in the production link and uploaded to the seed management computer; processing information is added to the RFID tag in a processing link, high-value seeds and low-value seeds are distinguished through the RFID tag, and meanwhile, updated information on the RFID tag is uploaded to the seed management computer; the seed management computer allocates the high-value seeds and the low-value seeds to different warehouses, and storage information is added to the RFID tag in a storage link and uploaded to the seed management computer; the handheld RFID reader is applied to the production link and the storage link, and the fixed RFID reader is applied to the storage link. The system realizes seed resource information management, has whole-process monitoring capability and traceability, and is favorable for effectively implementing seed management and ensuring grain production safety.
Owner:苏州田园优贡电子商务有限公司

Salt bag with electronic tag and preparation device and method thereof

InactiveCN105905416ASolve the problem that it is not easy to implant on packaging bags such as salt bagsWith traceabilityBagsSacksEngineeringTraceability
The invention provides a salt bag with an electronic tag and a preparation device and a method thereof. The salt bag comprises a salt bag body; and a RFID electronic tag is planted on the salt bag body. The preparation device comprises a film unwinding coil, an ink image-text printing device, an electric conducting ink printing device, an insulation ink printing device, an instant drying system, a code spraying printing system and a film winding coil; the instant drying system includes a drying tunnel; high-temperature air of 110-130 DEG C is in the drying tunnel; and the machine speed is 150 m / min. In order to meet the requirement on traceability of salt by the government, the information of the salt can be read or written into the tag through the readable and writeable RFID electronic tag in each procedure, the salt has the traceability, and the salt management and the information inquiry are convenient. The salt bag belongs to the salt field.
Owner:GUIZHOU JIN RUI NEW STYLE PACKAGING MATERIALS

Federal learning data tamper-proof monitoring method and related device

ActiveCN113094761ATraining results have not been tampered withWith traceabilityEnsemble learningDigital data protectionTamper resistanceLearning data
The invention discloses a federal learning data tamper-proof monitoring method and a related device, and the method comprises the steps: transmitting training configuration data to target equipment obtained after screening through a server, enabling the target equipment to carry out local training according to the training configuration data, and obtaining a training result; calculating a first hash value of the training result through the target device by adopting a preset hash algorithm, sending the first hash value to the block chain, sending the training result to the server, and enabling the block chain to establish connection with the server and the target device through a preset smart contract; and performing result verification through the server according to the received training result and the first hash value obtained from the block chain, and judging that the training result received by the server is not tampered if the verification is passed. The technical problem that the updating effect of a global model is affected due to the fact that a server cannot judge the credibility of data due to the fact that existing federal learning is lack of a transmission data tampering monitoring mechanism is solved.
Owner:SUN YAT SEN UNIV

Preparation method of self-tracing grating standard substance capable of accurately shortening pitch value

The invention relates to a preparation method of a self-tracing grating standard substance capable of accurately shortening a pitch value, which is used for preparing a hundred-nanometer-scale and below small-pitch tracing standard substance on the basis of a laser convergence atomic deposition technology and a soft X-ray interference photoetching technology, and comprises the following steps of:(1) obtaining a mask substrate; (2) adopting a laser convergence atomic deposition technology to deposit and prepare a mask on the mask substrate; (3) obtaining a photoresist sample which comprises photoresist and a second underlayment, exposing and developing the photoresist by adopting the mask through a soft X-ray interference photoetching technology to obtain a photoresist grating structure; and (4) transferring the photoresist grating structure to the second underlayment to obtain the self-tracing grating standard substance. Compared with the prior art, the self-tracing grating standard substance prepared by the method has the advantages of high precision, traceability, accurate shortening of the pitch value and the like.
Owner:TONGJI UNIV +1

Verification system for vaccination

The invention provides a verification system for vaccination. The verification system comprises a vaccination verification system which comprises a vaccination verification device, a vaccination datadisplay device, a vaccination data display same-screen device, an authority verification device, a vaccine identification device, a vaccination process data acquisition device, an alarm device, a printing device and a database. The vaccination verification system provided by the invention has an informatization, electronization and networking method to realize informatization management in a vaccination verification link; the phenomena of wrong vaccine and invalid vaccine in the vaccination verification process caused by human factors are avoided; the system has the advantages that medical disputes caused by wrong vaccines and invalid vaccines are reduced, the efficiency of the verification process can be greatly improved, the time cost is saved, the electronic tracing ability of the verification link is achieved, the last checkpoint is achieved, and a closed loop is formed in the vaccination informatization traceable process.
Owner:深圳玮凡智能科技发展有限公司

Engineering Drawing Method of Rolling Bearing Based on VB

ActiveCN109344499AAccurate Design ImplementationRealize Roughness DesignGeometric CADDrawing from basic elementsVisual BasicInterface design
A rolling bearing engineering drawing method based on VB belongs to the drawing method field. At present, it takes a long time to draw the bearing electronic drawing by AutoCAD, and the drawing process needs to consult the relevant specifications and other data, and the problem of high error rate. The invention relates to a rolling bearing engineering drawing method based on VB. Design process ofinquiring bearing precision function; Design Process of Two-Dimensional Structure Drawing Function of Bearing Parts; Dimensioning function design process; The design process of scaling function; Interface design process; The design process of data import and export function; The design process of data real-time updating. The invention uses Visual Basic and AutoCAD to realize bearing precision design, roughness design, bearing whole set drawing, drawing scale arbitrary zoom and so on, and shortens product design cycle.
Owner:AVIC HARBIN BEARING

Enterprise power consumption capacity rights and interests trading method based on block chain

The invention belongs to the technical field of power industry management, and particularly relates to an enterprise power consumption capacity rights and interests trading method based on block chain. According to the invention, the optimal configuration of the power consumption rights of the enterprise users entering a park is divided into two stages of initial pre-distribution and market transaction; wherein the market transaction stage comprises quantity reporting and quoting of enterprise users, bidirectional auction and P2P transaction of power utilization rights, P2P listing transaction of the power utilization rights and delivery settlement; the transaction process is realized on block chain, and developing an intelligent contract which can be actually operated in the Ethereum; transaction information is stored in the block chain, is maintained and permanently stored by all nodes with maintenance functions, cannot be tampered, and is public and transparent to participants; and a reward mechanism is designed to promote standardization of enterprise user behaviors. According to the invention, a decentralized and detrusted block chain technology is adopted, so that the transaction cost can be greatly reduced and efficient distribution and reasonable utilization of power resources can be realized in comparison with a traditional centralized power utilization right resource scheduling and distribution mode.
Owner:FUDAN UNIV

A decentralized IoT data transaction system

The invention discloses a decentralized Internet of Things data transaction system, which is implemented based on a block chain network. The Internet of Things data provider publishes the information of tradable data to the block chain network through a smart contract, and realizes the transaction based on a smart contract. Automatic point-to-point data transactions, the data supplier obtains the digital certificate and delivers the data, and the system records the execution result in the blockchain ledger. Among them, the data supplier only acts as a data provider, and the data demander only acts as a data demander, and neither acts as an accounting node on the blockchain network. The decentralized Internet of Things data transaction system proposed by the present invention is a high-efficiency, high-quality, and short-cycle Internet of Things data transaction method based on blockchain technology, which can realize the security of Internet of Things data generated by users (terminal devices) , Paid, and quickly used by the demand side, to achieve the purpose of ensuring the fairness of the data supply and demand sides and the legal and compliant use of IoT data through technical means.
Owner:杭州环普数据技术有限公司

Electronic warranty list management system based on alliance block chain

The invention relates to the technical field of computers. The invention further discloses an electronic warranty list management system based on the alliance block chain. The system comprises an enterprise warranty list service application front end and an alliance block chain rear end. The enterprise warranty list service application front end is composed of a user client and a cloud manager, wherein the alliance block chain rear end is constructed in an alliance block structure form, and the user client is application software for a consumer user to apply for an enterprise warranty service,and is in secure communication with the cloud manager so as to enable the user to complete related operations based on an electronic warranty list service. The invention discloses an electronic warranty list management system based on an alliance block chain. Therefore, the warranty sheet of the consumer has the advantages of convenience, durability and the like, can completely replace a traditional paper warranty sheet and a traditional electronic warranty sheet, provides safe, reliable and traceable warranty service for the consumer, replaces a paper warranty sheet with the electronic warranty sheet,, reduces the cost, and is environment-friendly and convenient to use.
Owner:武汉智鼎云网络科技有限公司

Human image verification method and device

One or more embodiments of the invention disclose a portrait verification method and device, which are used for realizing open type portrait storage and management so as to improve the efficiency andaccuracy of portrait verification. The method comprises the following steps: in response to a portrait verification instruction for carrying out portrait verification on a user, obtaining a first portrait comparison record which corresponds to user information and meets a preset condition from a portrait management system according to the user information of the user contained in the portrait verification instruction; Determining a first reference portrait corresponding to the user according to the first portrait comparison record; Comparing the first reference portrait with a currently collected portrait to be verified of the user to obtain a comparison result; And determining whether the to-be-verified portrait passes verification according to the comparison result, Wherein the portraitmanagement system stores portrait comparison records of a plurality of users.
Owner:ADVANCED NEW TECH CO LTD

Supply chain storage sorting method and system based on virtual data chain

ActiveCN110738286AGuaranteed traceabilityEnsure the traceability of goods in the warehouse sorting systemCo-operative working arrangementsLogisticsData miningDatabase
The invention relates to a supply chain storage sorting method and system based on a virtual data chain. The supply chain storage sorting method comprises the following steps: commodity warehousing: establishing a unique virtual label according to commodity information of different commodities, and taking commodity information data as basic data of the virtual label; warehouse allocation: allocating a temporary warehouse space uniquely corresponding to the virtual tag from the idle warehouse space, and taking identification information and allocation time of the temporary warehouse space as first additional data of the virtual tag; commodity sorting: associating commodities in the temporary storage space according to the commodities required by the order information, taking out, sorting and packaging the corresponding commodities, and taking the associated order information as second additional data of the virtual tags; and commodity delivery: pasting a waybill on the packaged commodity, wherein waybill information is used as third additional data of the virtual label. And the virtual label is used as the unique identity label of the commodity in the warehousing sorting system, sothat the labor intensity of information acquisition work is reduced, the warehousing sorting cost is reduced, and the working efficiency is improved.
Owner:杜明利

Transmission method and transmission management system of secrecy contents

The invention discloses a transmission method and a transmission management system of secrecy contents. The transmission method of the secrecy contents includes: sending the secrecy contents to a useraccount; carrying out account login by a user, and acquiring the secrecy contents; and generating an anti-divulgence identifier associated with current user information, and synchronously presentingthe anti-divulgence identifier and the secrecy contents. Through the transmission method and the transmission management system of the secrecy contents of the invention, secure and highly efficient transmission on the secrecy contents can be realized, and at the same time, the transmitted secrecy contents can be enabled to have traceability of a divulgence source.
Owner:四川腾云法智互联网科技有限公司

Traceable boric acid nano-drug compound, preparation method and use thereof

The invention provides a traceable boric acid nano-drug compound and a preparation method thereof. The traceable boric acid nano-drug compound comprises natural polyphenol, a boric acid drug and ironions. The preparation method includes: in an organic solution, firstly mixing the boric acid drug with natural polyphenol, and then mixing the obtained product with iron ions to obtain the boric acidanticancer nano-drug compound containing the boric acid drug, natural polyphenol and iron ions. The traceable boric acid nano-drug compound can be used for tumor tracing and the like. The invention also puts forward application of the nano-drug compound in preparation of drugs for prevention and / or treatment of tumors and inflammatory diseases. The nano-drug compound also has tracing ability, canensure that anti-cancer drugs only take effect at tumor sites so as to reduce side effects, and has better biocompatibility and better therapeutic efficiency. The traceable boric acid nano-drug compound provided by the invention has the characteristics of simple and safe synthesis, efficient and safe delivery of boric acid drugs, and has excellent medical value.
Owner:EAST CHINA NORMAL UNIV +1

Tracking targeting plasmid of vaccinia virus Tiantan strain and preparation method thereof

The invention discloses a tracking targeting plasmid of a vaccinia virus Tiantan strain. The plasmid includes upstream homologous recombinant arms VTT-TKL and downstream homologous recombinant arms VTT-TKR of vaccinia virus Tiantan strain TK genes. Luciferase reporter genes and EGFP green fluorescent protein marker genes, which are expressed through promoters P 7.5, are inserted between the upstream homologous recombinant arms VTT-TKL and the downstream homologous recombinant arms VTT-TKR. The invention further discloses a preparation method of the tracking targeting plasmid of the vaccinia virus Tiantan strain. According to the tracking targeting plasmid of the vaccinia virus Tiantan strain, the targeted removal of the TK genes in the vaccinia virus Tiantan strain can be achieved, and a recombinant Tiantan strain virus with the TK genes removed is prepared.
Owner:XIAN MEDICAL UNIV

House building quality data processing method and device and storage medium

InactiveCN111242410AHas disaster recovery capabilityWith traceabilityResourcesQuality dataEngineering
The invention relates to a house building quality data processing method and device, and a storage medium. The house building quality data processing method comprises the steps of determining the number of data nodes and performing sorting; collecting data for house building quality evaluation; starting from the second data node, enabling each data node to process and store the data sent by the previous data node, and then send the processed data to each data node before the sequence of the data node for storage and to the next data node for processing; and enabling the last data node to process the data, store the data and send the data to each of the rest data nodes for storage. The data processing device can use the method to process house building quality data, and programs and instructions corresponding to the method are stored in the storage medium. The method has the effects of continuous data, multi-copy storage and higher authenticity.
Owner:建信项目管理有限公司

Medium and long term electricity transaction method and system based on smart contract

The invention discloses a medium and long term power transaction method and system based on a smart contract, and belongs to the field of distributed power transaction, and the method comprises the steps: S1, a power grid enterprise sets a power transmission and distribution price, and uploads the power transmission and distribution price to a block chain; S2, after the electricity seller and the electricity purchaser reach a transaction intention, an intelligent contract is called to obtain the power transmission and distribution price from the block chain to draw up a medium and long term transaction contract and the transaction contract is stored to the block chain through the smart contract; S3, the power grid enterprise calls an intelligent contract to obtain a transaction contract from the block chain and performs security check and when the security check result is that the transaction is approved, contract signing succeeds; S4, the power grid enterprise uploads the measured transaction electric quantity of the seller and the buyer to the block chain through the smart contract for electric quantity settlement; and S5, the electricity purchaser sends the settled transaction fee to the smart contract account so that the smart contract account can distribute the transaction fee, and contract execution is completed. According to the invention, the problems of low cross-department data processing efficiency and difficulty in transaction information tracing and supervision in medium and long-term power transactions can be solved.
Owner:HUAZHONG UNIV OF SCI & TECH +2

Production logistics management system and method based on block chain

The invention belongs to the technical field of block chain technology and production logistics, and provides a production logistics management system and method based on a block chain. The system is managed by a distributed storage node, a transportation node and an MEC node and is interconnected through the Internet of Things, decentralized logistics services are provided among the nodes based on the block chain technology, and interaction and benefit safety delivery are completed by using an intelligent contract; when the storage node issues a transportation service request, the transportation node signed with the smart contract games with the storage node according to the respective situation, and determines the final transportation service providing node to provide the transportation service; and when the transportation node issues a calculation service request, the MEC node close to the transportation node provides a calculation task and obtains corresponding earnings. Compared with a traditional production logistics management system, the system has the advantages of distributed storage, high safety and reliability, easy traceability and the like.
Owner:CHONGQING UNIV OF POSTS & TELECOMM

A positioning method for the manufacture of casing support plate

The invention relates to the casting field, particularly to a positioning method for manufacturing of a cartridge receiver support plate. Three positioning bosses A1, A2, and A3 are arranged at one side of a blade body of a cartridge receiver support plate, wherein the three positioning bosses A1, A2, and A3 are distributed in a three-point positioning mode; a positioning boss is arranged at a positioning point B1 located at the upper side of the mounting edge of one side of the blade body, a positioning boss is arranged at a positioning point B2 located at the lower side of the mounting edge of one side of the blade body, and a positioning boss is arranged at a positioning point C1 located at the back of a flange of the cartridge receiver support plate. Blade positioning is realized by using the three positioning bosses A1, A2, and A3 as the main primary references; the axial height dimension is localized by using the positioning bosses B1 and B2 as auxiliary positioning points; and the circumferential dimension is localized by using the positioning boss C1 as the auxiliary reference positioning point. According to the invention, six positioning bosses are manufactured at the parts like the support plate blade body and the mounting edge and the like and are used as the unique reference system for dimension measurement, mechanical processing, and cartridge receiver welding; reference unification of all procedures can be realized; the support plate dimension can be measured rapidly and accurately; and processing, welding, positioning, and installation can be realized conveniently.
Owner:SHENYANG LIMING AERO-ENGINE GROUP CORPORATION

A method for preparing self-traceable grating reference material with precise shortening of pitch value

The present invention relates to a preparation method of self-traceable grating standard substance that accurately shortens the pitch value. The method is based on laser convergence atomic deposition technology and soft X-ray interference lithography technology, and prepares small-pitch traceable standard substance with a scale of 100 nanometers or less, including The following steps: 1) Obtain a mask plate substrate; 2) Use laser convergent atom deposition technology to deposit and prepare a mask plate on the mask plate substrate; 3) Obtain a photoresist sample, the photoresist sample includes photoresist and the second substrate; using a mask plate, through soft X-ray interference lithography technology, the photoresist is exposed and developed to obtain a photoresist grating structure; 4) transferring the photoresist grating structure to the second substrate On, obtain the self-traceable grating standard substance. Compared with the prior art, the self-traceable grating standard substance prepared by the invention has the advantages of high precision, traceability, accurate shortening of pitch value and the like.
Owner:TONGJI UNIV +1

Communication method between router nodes and switching method thereof

The invention discloses a communication method between router nodes, comprising: customizing the selection of the first transaction data in the standard OSPF work flow, so that it becomes the second transaction data matched with the block chain communication; The standard OSPF workflow performs secondary configuration of each node, so that the second transaction data between the nodes cooperates with each other and realizes synchronization; based on the blockchain communication workflow, the corresponding block is generated for the second transaction data, and each node After verification, it is added to the blockchain. The invention provides a communication method between router nodes, which innovates and improves the timing of sending or receiving transaction data and integrates standard OSPF and blockchain processes, which only modifies the standard blockchain process without modifying the OSPF standard process , to ensure compatibility with existing protocols and interoperability with existing networks.
Owner:MIANYANG NETOP TELECOM EQUIP

Data collection method, device and system and storage medium

The invention provides a data collection method, device and system and a storage medium, the method is applied to a system comprising a tail end collection node, a middle collection node and a terminal collection node, and the method comprises the following steps: collecting initial data through the tail end collection node, and uploading the initial data to the middle collection node; filtering the initial data through the intermediate sink node according to service requirements to obtain intermediate data, and uploading the intermediate data to the terminal sink node; and filtering the intermediate data through the terminal sink node to obtain target data. Therefore, the data can be subjected to hierarchical processing, the high-level data processing amount is reduced, the data has traceability, data management is facilitated, and the universality is high.
Owner:BEIJING WODONG TIANJUN INFORMATION TECH CO LTD +1

Intelligent integrated hydrogen cylinder valve

The invention provides an intelligent integrated hydrogen cylinder valve. The intelligent integrated hydrogen cylinder valve comprises an electronic chip, a GPS positioning device, a built-in power supply, an electronic display screen, a wireless communication module and a filling lock; the GPS positioning device is internally installed in a cylinder valve and a gas cylinder; the built-in power supply is connected with the electronic chip and the GPS positioning device so as to realize independent power supply; the electronic display screen is connected with the electronic chip so as to receive and display the data transmitted by the electronic chip; the wireless communication module is connected with an acquisition device of a hydrogen refueling station so that the acquisition device canreceive target information sent by the electronic chip, and the target information at least comprises the number of times of filling of the cylinder valve, parameters of the cylinder valve and parameters of a whole vehicle; and the filling lock is arranged on the power supply side, and a signal of the filling lock is controlled through a hydrogenation machine so as to realize on-off of the power supply. The novel hydrogen cylinder valve for the vehicle has a traceable function, a visual data display and reading function and a remote communication function.
Owner:上海舜华新能源系统有限公司

A method and system for document security control and traceability based on digital fingerprints

The invention discloses a file security control and trace method and system based on digital fingerprints. The method includes the file uploading procedure and the file downloading procedure. In the file uploading procedure, when a user uploads files to a file server, the file server starts a natural language analysis program and conducts full-context scanning and matched analysis on file contexts, a position where the digital fingerprints can be inserted is found, a fingerprint feature position list is generated, the fingerprint feature position list and original files are stored in the file server together, the uploading and downloading record list is generated, and information uploaded this time is recorded. In the file downloading procedure, when the user sends a file downloading request to the file server, the file server generates binary random codes with the same length according to the length of the fingerprint feature position list, when the random code corresponding position is 1, the digital fingerprints are inserted in the contexts at the corresponding position, a new file is generated and sent to the user, and meanwhile the downloaded information is recorded in the uploading and downloading record list. By means of the method and system, the context files can be traced back, and the security of the context files is managed.
Owner:陈佳阳 +1

Data registration and trusted circulation system, method, electronic device and storage medium

The embodiment of the present invention discloses a data registration and trusted circulation system, including: a data provider, a data demander, a data registration and trusted circulation platform, a data standardization tool, a registration application tool, a trusted computing tool, and a trusted computing Platform; the data provider uses the data standardization tool to standardize the fields in the database to be registered and released to obtain a standardized database, uses the registration application tool to calculate the registration feature code of the standardized database, generates a feature code, and then generates a registration application ; The data registration and trusted circulation platform publishes the summary information of the standardized database for trusted transaction circulation. On the premise of not breaking away from the control of the data provider, the data transaction and circulation are completed through the trusted computing tool and the trusted computing platform, which enhances the control over the data in the process of trusted circulation, and ensures that authorization is required before use, the use process is controllable, Traceable after use.
Owner:HENAN DATARIGHTS TECH CO LTD
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