11results about How to "Achieve persistence" patented technology

The invention provides an electric vehicle energy recovery method and device, a storage medium, a controller and a product. The method comprises the steps that vehicle control information, driving habit information and road information of a vehicle are collected; the collected vehicle control information, the driving habit information and the road information are subjected to preset processing, and a first variable mathematical model, a second variable mathematical model and a third variable mathematical model are obtained respectively; establishing an energy recovery strategy mathematical model based on the first variable mathematical model, the second variable mathematical model and the third variable mathematical model; performing optimization solution on the energy recovery strategy mathematical model through an optimization algorithm to obtain a predicted optimal energy recovery strategy of the electric vehicle; and controlling the electric vehicle according to the obtained predicted optimal energy recovery strategy. According to the scheme provided by the invention, the current optimal energy recovery strategy can be determined to optimize the service life of the battery, and the endurance mileage of the whole vehicle is improved.

This invention discloses a dynamic compression-type distributed data storage method, storage system, and apparatus, comprising: setting up a distributed storage node plugin, starting a private distributed storage node, and triggering a content addressing identifier smart contract based on a storage request from an external system; generating a corresponding key pair for the distributed storage node, wherein the content addressing identifier smart contract specifies a blockchain node address; enabling the distributed storage node to adapt to a dynamic distributed network based on the content addressing identifier smart contract; the blockchain node selecting a weighting factor for the stored data and calculating the data value of the stored data; the distributed storage node setting stored data attributes, allocating the entire storage area, reserving storage space for the stored data according to the data value, and determining a default storage period; compressing the stored data according to the data value, data attributes, reserved storage space, and storage period, and storing the compressed data in a database.

The invention provides a globally serializable multi-database transaction control method and system. The globally serializable multi-database transaction control method comprises the steps that an application service registers a multi-database transaction processing logic to a gasket layer; a multi-database transaction request initiated by a client is received, and a gasket layer intercepts and starts a global transaction of a multi-database transaction; the gasket layer executes the sub-transaction request of the multi-database transaction according to the multi-database transaction processing logic; and submitting the global transaction to the two-stage submission coordinator, and returning an execution result of the multi-database transaction request to the client. According to the method, atomicity, durability and global serializability guarantee is provided for multi-database transactions; concurrency control of an existing database system is reused based on a gasket layer, and seamless integration to existing applications can be achieved; transaction coordination overhead is low, and the method adapts to a high-concurrency environment; the consistency distributed transaction control of the grid has a good ACID (Access Control Identifier) characteristic; the method does not depend on a specific service implementation platform; and low invasiveness is kept for the application, and the transaction control does not influence the writing of normal business codes.

The invention provides a storage method and a database system. The method comprises the steps that in response to modification operation of a plurality of data pages, a plurality of log records are generated, and each log record corresponds to the modification operation of one data page; writing the plurality of log records into a log storage node; based on the plurality of log records in the log storage node, updating the plurality of data pages to obtain a plurality of updated data pages; and writing the plurality of updated data pages into a data storage node. According to the scheme, the performance of the database system can be improved.

The application discloses a multi-model reasoning method and device based on a graph structure, a medium and a program product, wherein the method comprises the following steps: querying a task target node in a graph database and starting from the task target node, and performing reasoning path expansion in the graph database according to a corresponding driving model, wherein the graph database comprises a plurality of directed acyclic graphs, and each directed acyclic graph is obtained by mapping metadata of a registered analysis model; generating a task topology execution graph according to model nodes involved in the expanded reasoning path and the corresponding driving model; and sequentially scheduling actual execution of each model node according to the task topology execution graph, and obtaining an explanation result corresponding to the task target node. The application improves the reasoning execution efficiency by explicitly attributing the analysis model and optimizing the reasoning path by using graph calculation, and improves the intelligence, performance and interpretability of multi-model collaborative analysis.

The invention discloses a Websocket pushing method supporting capacity expansion, which belongs to the technical field of network communication, and realizes reliable transmission of messages among a plurality of Websocket server instances through a Redis subscription or release mechanism. And the session information is stored in the Redis, so that the synchronization and persistence of the session state are realized. By means of the mode, the Websocket pushing method can achieve efficient data pushing and has the good capacity expansion capacity, the Websocket server instance connection object and the load balancing strategy are managed through subscription of the Redis server, the requirement of large-scale user concurrent requests can be met, and the stability and reliability of a system are improved.

The preparation method is characterized by comprising the following steps: mixing ethylene glycol and zinc white according to the weight ratio of (3-100): 1, and grinding until the solid particle size in the material is 80-110 nm to obtain nano zinc white dispersion liquid; 20-25 parts by weight of terephthalic acid, 25-30 parts by weight of ethylene glycol and 1-5 parts by weight of nano zinc white dispersion liquid are put into a reaction kettle and heated for an esterification reaction, 1-3 parts by weight of a catalyst and 1-2 parts by weight of a stabilizer are added after the esterification reaction is finished, heating is carried out for a vacuum polycondensation reaction, after the reaction is finished, materials after the reaction are cooled and granulated, and the nano zinc white dispersion liquid is obtained. And preparing the polyester chip capable of resisting odor-causing bacteria. The anti-odorizing bacteria polyester chip and the textile thereof prepared by the invention can inhibit the activity of the anti-odorizing bacteria from the source to achieve the deodorization effect, are particularly suitable for manufacturing textiles including socks, insoles, underwear and the like, have good anti-odorizing bacteria performance and can pass safety class A detection.

The invention provides an in-vivo mineralization self-growth method of a double-layer protective coating, the corresponding double-layer protective coating and a preparation method of the double-layer protective coating, which can be applied to the technical field of preparation of medical implantable medical instruments such as oral cavities, orthopedics and heart stents. According to the method, the magnesium metal surface is subjected to in-vivo biomineralization, then rich calcium sources and phosphorus sources in body fluid are dynamically converted into a mineral substance protection layer on the magnesium metal surface in situ under the in-vivo biomineralization effect, through the reasonable structural design, new mineral substances can be continuously deposited in the coating, defects in the coating are repaired, and the compactness and integrity of the coating are kept. As the newly generated mineral substances are self-generated in a body fluid environment, the newly generated mineral substances can better adapt to a body fluid corrosion environment and keep good stability in the body fluid, so that durable and self-adaptive protection of magnesium-based metal in a complex body fluid corrosion environment is realized, and the magnesium-based metal has good biocompatibility and biological activity.

The invention provides a time sequence data storage method and device, electronic equipment and a storage medium, and relates to the technical field of data storage, the method comprises the following steps: under the condition that first time sequence data is received, caching the first time sequence data into a memory space, and storing the first time sequence data into a log file of a disk space; under the condition that the timestamp of the first time sequence data cached in the memory space meets a time condition, writing the first time sequence data into a complete file of the disk space from the memory space, and deleting the first time sequence data in the memory space; and deleting the first time sequence data in the log file under the condition that the first time sequence data is written into the complete file of the disk space. According to the method, the problem of loss of the latest time series data in the memory caused by sudden downtime or fault of the equipment can be avoided.

The invention relates to an oyster peptide compound for promoting postoperative recovery, protecting the liver and dispelling the effects of alcohol and a preparation method of the oyster peptide compound. The compound is mainly composed of modified oyster peptide and dihydromyricetin, an antioxidant, a cross-linking agent, an adhesive and a pH regulator are matched, and the stability, bioavailability and release control ability of the oyster peptide are improved through a chemical modification method. The compound has the remarkable functions of protecting the liver, dispelling the effects of alcohol, resisting oxidation and promoting postoperative recovery. Oyster peptide is modified through esterification reaction and has a synergistic effect with small organic molecules such as dihydromyricetin and the like, so that the action effect of the oyster peptide in vivo is improved. The compound disclosed by the invention has excellent performance in the aspects of promoting postoperative recovery, improving the hemostatic effect, enhancing the antioxidant capacity and accelerating biodegradation, has a wide application prospect, and is particularly suitable for the fields of functional foods and health-care products.

The application provides a natural resource asset accounting method and device based on a model operator, equipment and a medium. The method comprises the following steps: in a visual modeling interface, a plurality of accounting operators are selected from a preset operator library in response to a user drag operation, a data flow direction and a dependency relationship between the operators are configured through a connection line, a natural resource asset accounting model is constructed, and a structured machine-readable model description file is converted; the model description file is submitted to a distributed task execution engine for analysis, an executable task graph is dynamically constructed, an accounting task is executed based on the executable task graph by using a Master-Worker distributed node architecture, and an accounting result of the natural resource asset is generated; and based on the accounting result of the natural resource asset, a natural resource asset balance sheet is automatically filled and generated according to a preset report template and a data association rule, so as to solve the problems of high maintenance cost and poor flexibility of a natural resource asset accounting system caused by the fact that accounting logic is fixed in a code level.