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60results about How to "Ensure traceability" patented technology

Article management method and device based on blockchain network and electronic equipment

The invention provides an article management method and device based on a block chain network, electronic equipment and a storage medium. The method comprises the steps of receiving user identity information uploaded by a first terminal corresponding to an article sharing party and article information of a to-be-shared article; authenticating the user identity information, and storing the articleinformation of the to-be-shared article into a block chain network when the user identity information passes the authentication; receiving an article query request sent by a second terminal corresponding to the article user, wherein the article query request carries a screening condition corresponding to the second terminal; in response to the article query request, querying articles meeting a screening condition in the to-be-shared articles from the blockchain network; and transferring the use permission of the article meeting the screening condition from the first terminal to the second terminal, so that the second terminal executes the use permission of the article meeting the screening condition. According to the invention, the traceability of the article information can be ensured, and the credibility of the article sharing process and the operation efficiency of article sharing are improved.
Owner:TENCENT TECH (SHENZHEN) CO LTD

Attendance management method and system

The present invention provides an attendance management method and system. The method comprises that a. a scheduling table is set, staff attendance information is collected, and the attendance information is uploaded to a server, wherein the attendance information comprises identity information, fingerprint information and scheduling information; b. according to the attendance information, the server collects statistics of the actual work record of staff, and dynamically assigns experimental test tasks through the fingerprint attendance condition of the test staff and the experiment workload; and c. the actual salary of the staff is automatically obtained by matching a pre-established salary system with the actual work record. According to the attendance management method and system provided by the present invention, a digital experiment and digital management platform is established, so that on one hand, assignment of experimental test tasks can be facilitated, efficiency in the experiment process can be improved, and the progress and result of the overall experiment can be ensured, and one the other hand, standardized management to the staff can be facilitated, and the salary system is combined, so that the cost of manual accounting is reduced, and the efficiency of the enterprise is improved.
Owner:LONCIN MOTOR

Self-adaptive filtering coefficient updating method and device

The invention discloses a self-adaptive filtering coefficient updating method. The self-adaptive filtering coefficient updating method comprises the following steps: step 1: equally dividing the length of a filter W(k) at a moment K into M sections; step 2: solving a secondary norm of a coefficient of each section of the filter; step 3: moving a rectangular window on the M sections of the filter, and accumulating the secondary norms of the coefficients of all sections of the filter in a window to obtain a maximum accumulated value; step 4: taking each filter subsection with the maximum accumulated value in the window as a filter active coefficient subsection Wa(k), and taking the others as non-active coefficient subsections Wn-a(k); and step 5: updating all the filter active coefficient subsections Wa(k) of the filter, and circularly updating one non-active coefficient subsection Wn-a(k). According to the self-adaptive filtering coefficient updating method disclosed by the invention, all the active coefficients of the filter are updated and one small section of the non-active coefficients are circularly updated, so that the effective length of the filter is reduced, the convergence speed is improved and the algorithm complexity is reduced. The invention further provides a self-adaptive filtering coefficient updating device.
Owner:SHAOGUAN COLLEGE

Electric power material management system based on PBFT alliance chain

The invention relates to an electric power material management system based on a PBFT alliance chain. The system is composed of a data layer, a network layer, a consensus layer, a contract layer and an application layer. The data layer is responsible for storing electric power material data and electric power material contracts, generating a fixed-length output string through a hash algorithm, generating a corresponding Merkle tree, and packaging the Merkle tree into a data block with a timestamp. The network layer is responsible for enabling all nodes in the alliance chain to participate in the check and accounting process of the data block. The consensus layer solves the consistency problem of the data layer participating in node maintenance data blocks through a PBFT consensus mechanism. The contract layer mainly completes signing of an electric power material contract through an intelligent contract, and an authority management module built by an RBAC model is added to further guarantee the safety of data. The application layer encapsulates various application scenarios of the alliance chain. According to the electric power material management system based on the PBFT alliancechain, electric power material data is subjected to refined management, and meanwhile safety and effectiveness of electric power material contract signing are guaranteed.
Owner:HANGZHOU DIANZI UNIV

Supervision system for breed conservation and source tracing of Thai black-bone chickens and Thai black-bone chickens

The invention discloses a supervision system for Taihe black-bone chicken and Taihe black-bone chicken egg breed conservation and traceability, and the system comprises a government supervision platform for a supervision link, and the platform is an intelligent terminal for a government supervision department; realizing user authentication supervision, traceability authorization and supervision oftracing equipment, and monitoring and statistics of real-time data of the platform; the method aims at enterprise application platforms of all links on a sales chain of production, processing and non-e-commerce ways, and opens intelligent terminals with different authorities for different types of authorized enterprises. The enterprise of the rear link can trace the supervision information of thefront link; the e-commerce platform for the online sales link is an intelligent terminal used by a recording enterprise. A user tracing query platform for the query link, which is an intelligent terminal used by the consumer; and a central data management platform for the data management link. According to the method, the source field management of Taihe black-bone chicken is taken as the source,covering all aspects, to ensure the whole process supervision and traceability from source to consumer..
Owner:INST OF AGRO FOOD SCI & TECH CHINESE ACADEMY OF AGRI SCI +1

Quantitative detection kit of hepatitis A virus

The invention relates to a quantitative detection kit of a hepatitis A virus. Specifically, a primer pair which detects the specificity of the hepatitis A virus is designed and verified; the optimal fluorescent quantitative PCR (Polymerase Chain Reaction) condition suitable for qualitatively and quantitatively detecting the hepatitis A virus is found by optimizing a fluorescent quantitative PCR system in real time; a standard substance and a quality control article for preparing a standard curve are additionally arranged in the detection kit to eliminate the differential interference among samples to ensure the precision and accuracy of quantitative detection to the maximum extent, thereby breaking through the defects that the previous detection methods of the hepatitis A virus are low in precision and great in uncertainty and the like. The detection method disclosed by the invention is high in sensitivity, and the lowest limit of detection can reach up to 10 copy/microlitre. Meanwhile, the kit is good in repeatability, and no significant differences (p is less than 0.05) exist in the group and among the groups after experiments are repeated for 6 times. The method disclosed by the invention can quickly and accurately detect the precise content of the hepatitis A virus.
Owner:WUHAN INST OF VIROLOGY CHINESE ACADEMY OF SCI

Power distribution network electric energy distributed transaction model based on distributed database support

The invention discloses a power distribution network electric energy distributed transaction model based on distributed database support, which is characterized in that electricity purchasing and selling parties send electricity purchasing and selling information through a distributed database network, and an electric energy transaction negotiation market chain code model completes negotiation oftransaction electric quantity and transaction price to form a temporary contract; the network security constraint chain code model performs security check on the temporary contract line power flow andthe node voltage; and the on-chain and off-chain model determines the temporary contract passing the security check as a final contract, and executes a transaction. According to the invention, the market main body is allowed to participate in the power market in a decentralized manner and negotiate the transaction electric quantity and the transaction price, the electricity purchasing cost of themarket main body can be effectively reduced, and the electricity selling income of the market main body is increased. Line power flow blocking and node voltage deviation conditions can be effectivelyjudged, and safe operation of a power distribution network is facilitated. The constructed distributed database capacity expansion architecture can ensure the safety and traceability of all historical data storage while ensuring the computing power of the distributed database.
Owner:SICHUAN UNIV

Belt online full-automatic coke sampling, sample preparation, analysis and determination system and method

InactiveCN114778862AIntelligentDiversified sample preparation processPreparing sample for investigationVideo monitoringMoisture analysis
The invention relates to the technical field of coke raw material sampling, sample preparation, detection and analysis, and provides a belt online full-automatic coke sampling, sample preparation, analysis and determination system and method, and the system comprises a sampling transmission unit, a granularity determination unit and a robot sample preparation analysis unit; the system has intelligence, multiple sets of sample preparation process application programs are built in the system for selection, and the sample preparation, measurement and analysis processes can be automatically and flexibly set through a control center computer or a field operation control touch screen. The system has high efficiency, and 96 batches of samples can be detected and analyzed per day; the system has transparency, information of the whole sample preparation process is archived, and video monitoring of the whole process is stored and checked; the system has accuracy, and samples are prepared and analyzed, and the whole process of prefabricated cleaning samples of different batches of materials is cleaned. Compared with a traditional coke sampling and sample preparation system, the coke sampling and sample preparation system is high in accuracy of granularity measurement, mechanical strength measurement and moisture analysis data, high in sample preparation representativeness, high in automation degree and high in sample preparation efficiency.
Owner:宁波检验检疫科学技术研究院宁波国检贸易便利化服务中心 +1
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