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1391 results about "Transaction processing" patented technology

Transaction processing is information processing in computer science that is divided into individual, indivisible operations called transactions. Each transaction must succeed or fail as a complete unit; it can never be only partially complete.

Systems and Methods for Decentralized Event Orchestration and Microservice-Based Transaction Processing in a Distributed Ledger Network

Systems and methods for decentralized orchestration of event records within decentralized computing environments. A processing system including decentralized execution nodes dynamically allocates microservice instances based upon real-time node performance metrics. Transaction requests including transaction data digitally associated with decentralized identifiers (DIDs) are processed by allocated microservice instances. The processing includes verifying transactions, generating cryptographically-linked immutable memorialization records associated with respective DIDs, and distributing these records to a tamper-evident distributed ledger configured to enforce immutability through consensus nodes. The processing system dynamically reallocates microservice instances among decentralized execution nodes based upon monitored utilization metrics and predefined scaling thresholds. Each memorialization record is cryptographically secured and linked permanently to the DID for data immutability, enhanced security, and dynamic scalability for event data processing in distributed infrastructures.
Owner:VANNADIUM INC

Self-correction structured bid evaluation guide method for public resource transaction

The invention discloses a self-correction structured bid evaluation guide method for public resource transaction, and relates to the field of resource transaction processing, the method is based on a bid evaluation system, and the method comprises a data preprocessing unit, a structured analysis unit, a rule unit, an intelligent evaluation unit, a workflow management unit, a report generation unit and a data filing unit. Historical similar project scoring data is analyzed based on a large language model through an intelligent review unit, a real-time scoring reference interval is generated, expert experience and data driving are combined, professional judgment is reserved, scoring randomness is reduced through data quantification, a workflow management unit adopts an LSTM neural network to construct a review behavior prediction model, and the review behavior prediction model is used for predicting the review behavior. According to the method, the degree of deviation between expert scores and predicted values is compared in real time, meanwhile, multi-party review cases are integrated based on federal learning to form a dynamic knowledge base, review after the event is changed into real-time monitoring and intelligent intervention, the objectivity of bid evaluation is enhanced, and subjective item scores tend to be standardized.
Owner:LINYI PUBLIC RESOURCES TRADING CO LTD

Cache architecture and method of AXI interconnection module, electronic equipment and storage medium

The invention provides a cache architecture and method of an AXI interconnection module, electronic equipment and a storage medium, and relates to the technical field of storage, the cache architecture comprises an index cache region, a shared cache region and a shared cache access controller, the index cache region comprises an index entry list, and the shared cache region comprises an instruction cache region and a data cache region; each index cache region corresponds to one main device, the shared cache region corresponds to all the main devices, and the index entry list is used for recording index information of access transactions of the corresponding main devices; each index entry in the index entry list corresponds to one access transaction; and the shared cache access controller is used for storing instruction information corresponding to the access transaction in the instruction cache region based on the index information and storing data information corresponding to the access transaction in the data cache region. By applying the scheme of the invention, the utilization efficiency of on-chip resources can be improved on the basis of ensuring the transaction processing performance.
Owner:SHANDONG YUNHAI GUOCHUANG CLOUD COMPUTING EQUIP IND INNOVATION CENT CO LTD

Transaction processing mechanism optimization method and system for time series data

The invention discloses a transaction processing mechanism optimization method and system for time series data, and belongs to the technical field of databases, and the method realizes a differentiated ACID support mechanism, strengthens atomicity and durability guarantee, and weakens consistency and isolation requirements; comprising the following steps: designing a collaborative architecture of a transaction system and a pre-write log WAL, and establishing a binding relationship between a transaction state and WAL writing; generating a WAL record only for the successfully submitted transaction operation, and performing persistent storage by adopting a batch group submission strategy; transaction scheduling is realized through a lightweight transaction manager, and the life cycle of a transaction request is managed; the functions of efficient writing of transaction granularity, log storage and rapid recovery are realized through a pre-writing log manager; through intelligent Checkpoint background service, based on a periodic incremental check point mechanism, compression merging and space recovery of the WAL file are realized. According to the invention, the performance breakthrough of the time sequence database in a high-concurrency write-in scene can be realized.
Owner:山东浪潮数据库技术有限公司 +1

Electric power spot market electricity charge settlement system and method fused with block chain technology

The invention discloses an electric power spot market electric charge settlement system and method fused with a block chain technology, and the system comprises a core settlement layer which is used for storing the electricity price and user identity data, and executing an electric charge settlement rule through a built-in intelligent contract module; the high-frequency transaction processing layer is used for processing a transaction process through an under-chain caching technology and uploading data in the transaction process to the core settlement module; an external data interface is integrated on one side of the high-frequency transaction processing module and used for acquiring electric quantity and load data in real time, and a cross-chain gateway is arranged on the other side of the high-frequency transaction processing module and used for achieving synchronous settlement of electric charge and capital flow. According to the method, the efficiency and transparency defects of a traditional mode are overcome, the performance and energy consumption bottleneck of the block chain technology in an electric power scene is broken through, high efficiency, safety, expandability and environmental protection benefits are achieved, and a credible, real-time and compliant digital settlement infrastructure is provided for an electric power spot market.
Owner:STATE GRID ZHEJIANG ELECTRIC POWER CO MARKETING SERVICE CENT

Credential management and use in a distributed system

A method of provisioning a credential for a transaction between a payment device of a user and a transaction processing device is described. The method is implemented a third-party server remote from the payment device and the transaction processing device. The method comprises assigning the credential to the transaction and the user and provisioning the credential into the payment device for subsequent retrieval by the payment device. Assigning the credential to the transaction comprises: determining unique identifying information of the user; allocating a first user-identifying portion of the credential to correspond to the unique identifying information; determining a plurality of properties intrinsic to the transaction and encoding the plurality of properties into transaction-identifying information; and allocating a second transaction-identifying portion of the credential to correspond to the transaction-identifying information. The credential is associated with encrypted authentication data that is generated by the payment device during the transaction, and used for subsequent authentication of the transaction by the remote third-party server.
Owner:MASTERCARD INT INC

Block chain fragment security extension method of trusted state synchronization chain

The invention discloses a block chain fragment security expansion method of a trusted state synchronization chain, which realizes state consistency verification between fragments by constructing a Layer1 state synchronization chain, and adopts an unbiased random leader rotation mechanism based on a preorder block signature and an efficient two-stage submission protocol. Three rounds of communication of traditional BFT consensus are compressed into two rounds of parallel processing under a state fragmentation architecture, and a dynamic fragmentation recombination strategy and a state difference synchronization technology are combined, so that the core problems of throughput bottleneck, cross-fragmentation transaction atomicity, attack risk prediction by a leader, reduction of recombination efficiency and the like in a block chain fragmentation system are systematically solved; the parallel transaction processing is realized, the consensus time delay is reduced by 30%, the cross-fragment transaction verification efficiency is improved by 60%, the system throughput is linearly expanded along with the fragment number, and the system security is enhanced through a pledge economic model and a malicious node detection mechanism.
Owner:GUANGZHOU UNIVERSITY

Virtual power plant operation management and control method based on block chain

The invention discloses a virtual power plant operation management and control method based on a block chain, original power data are compressed into Hash fingerprints to be chained through a collaborative architecture of an edge computing layer and an AI pre-decision module, the block chain network load is effectively reduced, and a dynamic elastic PBFT consensus mechanism adjusts the scale of verification nodes in real time based on transaction types, so that the efficiency is improved. And compared with a traditional fixed node consensus mechanism, the network communication overhead is reduced. And a hash value asynchronous pre-verification technology is adopted, so that the interaction rate of the multi-dimensional power data is improved, and the efficiency is improved compared with that of a conventional data uplink mode. Through the decoupling design of the intelligent contract execution flow and the consensus verification flow and in combination with the pre-decision data cache queue, the resource scheduling instruction issuing time delay is reduced. The block chain transaction throughput is improved and is effectively improved compared with a standard alliance chain architecture, and the technical problems that the consensus mechanism processing transaction speed of an existing block chain is limited and the high-frequency real-time data interaction requirement of a virtual power plant is difficult to meet are successfully solved.
Owner:GUANGDONG ANT JINGPENG ENERGY GROUP CO LTD

DMA (Direct Memory Access) communication device for computing network integration computing architecture and working method of DMA communication device

The invention discloses a direct memory access (DMA) communication device for a computing network convergence computing architecture and a working method of the DMA communication device. The DMA communication device comprises a DMA transaction processing module and a protocol conversion module; the DMA transaction processing module is used for analyzing related DMA read-write requests, realizing processing of the DMA read-write requests and receiving of response data of the DMA read requests and completing processing of interrupt requests at the same time, and the protocol conversion module is used for completing conversion of read-write requests between a DMA interface and an AXI interface and mapping of response states. The invention aims to realize efficient protocol conversion between AXI and DMA interfaces, avoid the problem of DMA read request starvation caused by resource competition and ensure the consistency of DMA data access so as to improve the performance of an accelerator in high-performance calculation and artificial intelligence application, reduce transmission delay and improve data transmission bandwidth and energy efficiency.
Owner:NAT UNIV OF DEFENSE TECH

Consensus authentication method and device based on block chain, electronic equipment and program product

The invention discloses a block chain-based consensus authentication method and device, electronic equipment and a program product, and relates to the technical field of block chains, and the method comprises the steps: generating a pre-preparation message based on a financial transaction request initiated by a client through a main node, and broadcasting the pre-preparation message to all consensus nodes, part of preparation messages returned by consensus nodes are received through a main node, signatures in the part of preparation messages are aggregated into batch signatures under the condition that the validity verification of the messages is passed, submission information is generated based on the batch signatures, and the submission information is broadcasted to all the consensus nodes. And counting the number of the consensus nodes which pass verification of the aggregated batch signatures, and completing the consensus authentication process of the current batch transaction under the condition that the number of the consensus nodes reaches a preset node number threshold value. According to the method and the device, the technical problems of low consensus efficiency and complex verification process when the alliance chain adopts a batch processing signature mechanism to perform batch processing in a high-concurrency transaction processing scene in the related technology are solved.
Owner:INDUSTRIAL AND COMMERCIAL BANK OF CHINA

Spring Batch and large model-based data synchronization method and device

The invention provides a data synchronization method and device based on Spring Batch and a large model. Synchronously initializing a large model micro service and a Spring Batch framework, and establishing a model service hot standby mechanism; obtaining data source features through a metadata scanning engine driven by a large model, and generating an adaptive synchronization strategy; optimizing a query plan based on the synchronization strategy, dynamically controlling data fragmentation and executing streaming preprocessing and semantic mapping conversion; a target table structure is adapted, a three-level conflict detection mechanism is adopted to eliminate data conflicts, and meanwhile transaction processing and batch writing logic are optimized; the data quality is verified through three-level verification, performance parameters are dynamically adjusted and optimized, and fault-tolerant recovery and resource elastic expansion and contraction are achieved; metadata are synchronized, an execution report is generated, knowledge base self-learning is completed based on task full-link indexes, and a data consanguinity map and a reusable processing case library are constructed. According to the scheme, diversified and dynamic enterprise data synchronization requirements can be met.
Owner:SHANDONG LANGCHAO YUNTOU INFORMATION TECH CO LTD

Chip design verification method and related device

The embodiment of the invention provides a chip design verification method and a related device. The chip design verification method comprises the steps of obtaining a to-be-tested chip design and executing the to-be-tested chip design; in the process of executing the to-be-tested chip design, when it is detected that a current transaction processed by the to-be-tested chip design generates blocking delay due to input blocking conditions, if it is determined that the blocking delay exceeds the upper limit of the preset blocking period number, the blocking delay caused by the input blocking conditions is relieved, and the current transaction continues to be processed; in the process of continuing to process the current transaction, if it is detected that the current transaction generates transaction processing delay due to a non-input blocking condition and it is determined that the transaction processing delay exceeds a preset delay upper limit, an error indication is returned; wherein the transaction processing delay is the time difference between the moment when the starting signal of the current transaction is valid and the moment when the completion signal is valid. Through transaction processing delay detection, omission of scenes with problems in the chip can be avoided, and comprehensiveness of problem detection is enhanced.
Owner:HYGON INFORMATION TECH CO LTD

Efficient database reading method based on multi-level cache optimization and dynamic index fragmentation

The invention relates to the field of database reading, and particularly discloses an efficient database reading method based on multi-level cache optimization and dynamic index fragment.The efficient database reading method comprises the steps that high-frequency query data is accurately recognized through a sliding window algorithm, a dynamic cache loading and preheating strategy is implemented, query delay is effectively shortened, and the database burden is relieved; intelligent distribution of index fragments is realized by applying a consistent Hash algorithm, and the query efficiency is greatly improved in cooperation with distributed query routing and transaction processing optimization; the query load balancing ensures stable and efficient operation of the system in a high-concurrency scene by means of weighted polling and a minimum connection strategy in combination with real-time monitoring and an elastic capacity expansion and contraction mechanism. According to the method, the database access efficiency and the dynamic adaptive capacity are remarkably improved, and the method is particularly suitable for a large-scale distributed data processing environment.
Owner:YANTAI JIERUI NETWORK TRADING

The camera and the back cover of the mobile phone

1. Name of the Design Product: Camera and Rear Cover of Mobile Phone. 2. Use of the Design Product: The overall use is to provide network communication, voice calls, transaction processing (data storage, recording, picture browsing), etc.; the local use is to protect the internal structure of the mobile phone and take pictures and videos. 3. Design Key Points of the Design Product: Lies in the local shape to be protected. 4. Picture or Photo Most Illustrating the Design Key Points: 3D View 2 of Design 1. 5. Design 1 is designated as the basic design. 6. Other Circumstances Requiring Explanation: Other Explanation: The parts not required to be protected are indicated by dashed lines in Designs 1 to 4.
Owner:HUAWEI DEVICE CO LTD

System of security that prevents abuse of identity data in global commerce via mobile wireless authorizations

A system of security that prevents misuse of identity data of an identity data owner in an identity data driven transaction in a global commerce network, that has in the system, a transaction processing entity that after it receives a identity data driven transaction from a transaction initiating entity, puts on hold the processing of the transaction for a period of time and via the identity data owner's wireless mobile communication device, contacts the identity data owner for authorization of the transaction before the transaction processing is completed. The system of security for identity data may be used in the identity data driven transaction is one from a group of (i) credit card payment, (ii) bank account payment, (iii) release of credit profile, (iv) release of financial data, and (v) release of medical data.
Owner:SINGHAL TARA CHAND

Federated Strategy Implementation to Improve the Transaction Per Second (TPS) in Proof of Work and Proof of Stake with Carbon Efficiency

Federated Learning systems and methods optimize blockchain transaction processing speed (TPS) and carbon efficiency. Blockchain networks have nodes with a Local Federated Learning Model (LFLM) that can develop / refine computational strategies for block generation in PoW systems or transaction validation in POS systems without revealing sensitive data. Nodes communicate with a Federated Learning Information Server (FLIS) to aggregate, analyze, and distribute optimized strategies across the network to reduce block generation and transaction validation computational resources. This boosts TPS and cuts blockchain network energy use. Incentive-mechanisms reward nodes that create / share efficient computational strategies, encouraging innovation. Dynamic strategy adoption modules select and apply optimum strategies based on network conditions and node capabilities. The POS system auto-approves validators to ensure transaction validation. Decentralized computational strategy exchange via a peer-to-peer protocol is also disclosed. Federated Learning with blockchain technology improves operational efficiency and reduces energy consumption and carbon footprint.
Owner:BANK OF AMERICA CORP

Data transmission method and device, heterogeneous system, and coherent interconnect processing component

The present application relates to the technical field of data storage, and specifically discloses a data transmission method and device, a heterogeneous system, and a coherent interconnect processing component. The coherent interconnect processing component installed on a device enables corresponding coherent interconnect interfaces on the basis of the number of other devices to be interconnected in a heterogeneous system where said device is located, initializes physical communication links to obtain memory interconnect parameters, establishes memory coherent interconnect communication links between the devices on the basis of the memory interconnect parameters, allocates corresponding cache spaces from said device, and on the basis of the memory coherent interconnect communication links and the cache spaces, performs cache coherent transaction processing of said device and the other devices, so as to implement memory coherent interconnect transmission requests between said device and the other devices. Therefore, topologies can be dynamically sensed, and memory coherent interconnect communication links between devices in a heterogeneous system can be automatically established, thereby mitigating the problem that different device interconnect protocols need to be managed in the heterogeneous system, achieving inter-device cache coherence, and further improving the access performance.
Owner:LANGCHAO ELECTRONIC INFORMATION IND CO LTD

Lightweight block chain node consensus mechanism optimization method

The invention discloses a lightweight block chain node consensus mechanism optimization method, and relates to the technical field of block chains. According to the method, the computing power of the lightweight nodes is accurately evaluated through a hierarchical verification aggregation algorithm, efficient participation of the lightweight nodes in a resource-constrained environment is realized, a transaction set is divided into a plurality of subsets by adopting a transaction verification fragmentation strategy, and verification results are aggregated by utilizing a Merkel tree aggregation verification technology; in addition, a dynamic storage management strategy is established, the depth of locally stored historical data is dynamically adjusted according to the node storage capacity, and network storage and retrieval are performed through a distributed hash table; the bottleneck problem of storage and network transmission is effectively solved, and the network bandwidth utilization efficiency and the storage management flexibility are improved.
Owner:TIBET CHENYUN INFORMATION TECH CO LTD

Block chain transaction processing method and system, electronic equipment and program product

The embodiment of the invention discloses a block chain transaction processing method and system, electronic equipment and a program product, and relates to the technical field of block chains, the method can be applied to a block chain system, and the block chain system comprises a main chain and a sub-chain; the method comprises the steps that a subchain determines the transaction category of at least one transaction request submitted by a user; in response to the fact that the transaction category of a first transaction request in the at least one transaction request is a first preset category, the sub-chain generates a zero-knowledge proof corresponding to the first transaction request, and at least submits the compressed transaction data and the zero-knowledge proof to the main chain together for verification; in response to the fact that the transaction category of the first transaction request is a second preset category, the sub-chain at least submits the compressed transaction data to the main chain to wait for challenge; and updating the global state tree, and releasing a corresponding number of assets to the account address of the receiver. According to the embodiment of the invention, the performance of the sub-chain in the aspects of transaction throughput, transaction reliability verification and the like can be improved.
Owner:CHINA ACADEMY OF INFORMATION & COMM +1

Mobile phone and its main body

1. Name of the design product: Mobile phone and its main body. 2. Use of the design product: Mainly used for providing network communication, voice calls, transaction processing (data storage, recording, picture browsing), etc. 3. Design key points of the design product: Lies in the partial shape of the product to be protected. 4. Picture or photo that best shows the design key points: 3D view 2 of Design 1. 5. Design 1 is designated as the basic design. 6. Other situations that need to be explained: Other explanations: The parts not required to be protected are shown by dashed lines in the figure.
Owner:HUAWEI DEVICE CO LTD

Distributed system transaction processing method and device based on two-stage commit protocol, equipment and medium

The invention discloses a distributed system transaction processing method and device based on a two-stage commit protocol, equipment and a medium, and relates to the technical field of distributed computing, and the method comprises the steps: obtaining transaction data sent by a coordinator before a preparation stage; sending a first response message to the coordinator and the participants based on the transaction data, so as to send an operation instruction to each participant according to the first response message; receiving a second response message sent by each participant, and storing a target number of copy data based on each second response message; if the operation instruction is not received in the target time period, processing the transaction data based on the copy data; and obtaining a corresponding processing result, and synchronizing the processing result to the target participant so as to optimize the two-stage submission protocol. By sharing the transaction state information among the participants, the participants can still complete transaction submission or rollback under the condition that the coordinator loses efficacy in the system, so that the occurrence of indefinite blockage is avoided.
Owner:SHANDONG LANGCHAO YUNTOU INFORMATION TECH CO LTD

Quality safety supervision system based on block chain and Internet of Things

The invention discloses a quality safety supervision system based on a block chain and the Internet of Things, and the system comprises an Internet of Things sensor network which is used for collecting the environment data, construction equipment operation data and building material state data of a construction site of a construction project in real time; the edge computing equipment is connected with the Internet of Things sensor network and is used for carrying out primary processing and screening on the acquired data; the block chain node receives the effective data from the edge computing device through a 5G communication technology, and stores and processes the effective data; the system has the beneficial effects that the real-time and comprehensive acquisition of data is realized by fully utilizing the Internet of Things technology, the timeliness and integrity of quality data are ensured, and a more accurate data basis is provided for quality safety supervision; the improved Byzantine fault-tolerant consensus algorithm based on creditworthiness improves the transaction processing efficiency of the block chain, reduces the storage cost, and enhances the responsibility of the node and the data credibility through creditworthiness weight setting.
Owner:西安市交通运输综合执法支队

Ultrahigh-frequency radio frequency tableware batch identification and transaction control system based on artificial intelligence

The invention discloses an ultrahigh-frequency radio frequency tableware batch identification and transaction control system based on artificial intelligence, and the system comprises a tableware radio frequency tag module which is used for embedding an ultrahigh-frequency RFID tag in a tableware body; the radio frequency reading and signal acquisition module is used for outputting structured data records; the artificial intelligence identification and error correction module is used for generating a credible tableware identifier set and a state feature set; the array antenna control module is used for dynamically adjusting a beam direction angle and a transmitting power parameter value of the array antenna; the edge computing transaction processing module is used for inputting the trusted tableware identifier set into an edge computing transaction processing flow and executing repeated charging risk verification; the payment control module is used for returning a payment result; and the background management and tracking module is used for generating operation statistics and abnormal record entries. The system has high-precision tableware identification, low-delay settlement and abnormity prevention and control capabilities, and is suitable for automatic identification and intelligent settlement management of batch tableware in a catering scene.
Owner:苏州惠商智能科技有限公司

cellular phone

1. The name of the design product: mobile phone. 2. The use of the design product: the design product is used to provide network communication, voice call, transaction processing (data storage, recording, picture browsing), etc. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: design 1 perspective view 1. 5. Design 1 is designated as the basic design. 6. Other circumstances that need to be explained: the rear cover in design 1 and design 3 is made of transparent material.
Owner:纳欣科技有限公司

IoT based authentication

Aspects of the disclosure relate an IoT authentication system to strengthen and streamline authentication for transaction processing for users. A transaction computing platform using artificial intelligence may receive from a plurality of IoT devices information regarding interactions with a user. In some arrangements, transaction computing platform may generate constellations based on the received information. A trust status may be determined based on the generated constellations. Transaction authentication may be based at least in part on the determined trust status. In some embodiments, real-time updates of trust status along with transaction alerts may be provided to IoT devices.
Owner:BANK OF AMERICA CORP

A payment system that integrates crypto assets and fiat currencies

Conventional cryptocurrency payment systems are cumbersome due to the need for exchange with fiat currency, collaboration with institutions that provide asset exchange functions, and tax procedures, and transaction delays and high costs have been barriers to their widespread adoption. Another issue is the lack of an integrated payment system that can handle a variety of digital assets, such as NFTs and tokens. [Solution] This invention provides a system that integrates institutional collaboration and tax processing, providing settlement and asset exchange functions, and realizes real-time selection of optimal exchange rates, high-speed transaction processing, and automatic generation of tax data. Furthermore, it solves existing problems as an integrated platform that supports crypto assets, fiat currencies, and digital assets.
Owner:KASPA PAY CO LTD

PIO communication device and computing equipment for computing network integration computing architecture

The PIO communication device comprises a protocol conversion module and a PIO transaction processing module, the protocol conversion module and the PIO transaction processing module are connected with each other, the protocol conversion module is connected with a computing component connected to a network-on-chip NoC through an AXI interface, and when the computing component initiates a PIO read-write request, the PIO transaction processing module sends the PIO read-write request to the computing component; the protocol conversion module performs conversion of read-write requests between an AXI protocol and a PIO protocol and mapping of response states, and the PIO transaction processing module initiates register access and descriptor writing operation to the network protocol processing component by analyzing the converted PIO read-write requests and receives register read response data returned by the network protocol processing component. According to the invention, a decoupling design of an address channel, a data channel and a response channel is adopted, conversion of a PIO read-write transaction between an AXI interface and a network protocol interface is completed, and high-bandwidth and low-delay non-blocking PIO data transmission and processing are realized.
Owner:NAT UNIV OF DEFENSE TECH

Transaction processing method in block chain system and block chain node

The transaction processing method in the block chain system comprises the following steps: executing post-verification processing on a transaction sequence indicated by a consensus proposal reaching a consensus, deleting an abnormal transaction from the transaction sequence, obtaining a target transaction sequence allowed to be packaged to a first block, values of nonce fields included in a plurality of first transactions initiated by any first account address in the target transaction sequence are progressively increased by taking a first verification number corresponding to the first account address as an initial numerical value according to an arrangement sequence of the plurality of first transactions in the transaction sequence, and the step length is 1; the first verification number is updated to be the sum of the first verification number and the accumulated number of the first transactions; and when the first verification number is greater than a lower limit value of a first expected receiving range corresponding to the first account address, the first expected receiving range is updated according to the first verification number, and the first expected receiving range is used for deciding whether to discard a second transaction after the block chain node receives the second transaction initiated by using the first account address from the client.
Owner:ANT BLOCKCHAIN TECHNOLOGY (SHANGHAI) CO LTD

Intelligent product oil circulation supervision platform and monitoring method

The invention belongs to the technical field of oil product transaction supervision, and discloses an intelligent supervision platform and a monitoring method for oil product circulation. The method comprises the following steps: deploying an edge node at a gas station and calibrating through a satellite signal; synchronizing a device signal based on an improved PTP protocol; the method comprises the following steps: collecting product oil circulation data through product oil circulation equipment, adding a PTP calibration timestamp to the product oil circulation data, and storing the product oil circulation data through a Hyperledger Fabric alliance chain to generate a block containing a time anchor point; the SSL / TLS protocol is adopted to encrypt and transmit data to the provincial cloud platform, and cross-database operation of product oil circulation data is carried out through a two-stage submission transaction processing mechanism; product oil circulation data are integrated based on an SOA architecture, a standardized tax control model is generated through ETL, and intelligent analysis and early warning are performed through a dynamic double-track early warning mechanism; according to the method, the problem of unreliable time synchronization in a complex network environment is solved, data such as transaction and inventory are ensured to carry credible timestamps, and second-level anomaly traceability is supported.
Owner:XINJIANG AREOSPACE INFORMATION CO LTD

Internet of vehicles double-layer block chain fragmentation method

The invention discloses an Internet of Vehicles double-layer block chain fragmentation method, and relates to the field of intelligent transportation systems.The Internet of Vehicles double-layer block chain fragmentation method is characterized in that consensus tasks are processed in a labor division mode through an'mining-packaging 'double-layer fragmentation structure, parallel transaction processing is achieved, single-node load is reduced, and the overall processing capacity is improved; a node reputation evaluation mechanism is used for dynamically evaluating and screening consensus nodes, low-reputation even malicious nodes are effectively eliminated, the Byzantine risk is reduced, and safe operation of the block chain is guaranteed.
Owner:XIAN TECH UNIV