6results about How to "Reduce storage consumption" patented technology

The invention relates to a video slice management method and device, computer equipment, a computer readable storage medium and a computer program product. The method comprises the following steps: receiving a video playing request sent by a client; the video playing request is used for requesting the video content of the target video content source channel within the time range from the first time to the second time; querying a first index node matched with the first time and a second index node matched with the second time in a target channel index red-black tree of a channel sharing index structure; each index node in the target channel index red-black tree is inserted into the target channel index red-black tree by taking the timestamp information of the corresponding video slice file as a keyword; and in a target channel index chain table of the channel sharing index structure, traversing to obtain the video slice file corresponding to each index node between the first index node and the second index node, and returning the video slice file to the client. By adopting the method, the concurrent response capability of the live broadcast server system can be improved.

The invention provides a data layout method oriented to a cloud edge end collaborative environment. A data placement strategy for cloud edge end environment characteristics and application requirements is researched and designed. The overall thought of the method is as follows: key elements influencing data distribution are extracted and calculated by analyzing nodes, networks and data features of a cloud edge end environment, and a node-data model is constructed for subsequent analysis and use; establishing a total optimization target with constraint conditions, and providing a mathematical tool for a data layout task; according to a node-data model, rapid initial data layout is realized, a large amount of overhead of optimization calculation is reduced, and the storage pressure of nodes connected with a terminal for collecting data is relieved; and performing data re-layout according to actual use requirements of a user to realize layout optimization.

The present application relates to a kind of multi-node probe flexible attachment re-planning method, belong to aerospace and artificial intelligence cross technical field.The system constraint conflict problem that may be generated by the task sequence of initial planning being executed in view of small asteroid exploration activities, due to insufficient cognition to small asteroid environment, each node of probe and possible fault in node subsystem, facing the flexible attachment task demand of multi-node probe, the present application establishes the flexible landing re-planning problem model of multi-node probe, creates the layered constraint graph model of re-planning, proposes the re-planning method of layered time delay satisfaction verification mechanism and layered neighborhood re-planning search algorithm based on layered constraint graph, to meet the demand of multi-node probe flexible landing to autonomous re-planning.The present application lays a technical foundation for the successful landing of multi-node probe and subsequent small asteroid resource collection, planet walk and other further exploration tasks.

The embodiment of the invention discloses a city operation data monitoring system, method and equipment and a computer readable medium. According to a specific embodiment of the system, a city operation data uploading node is configured to encrypt city operation data; uploading the encrypted city operation data to a city operation data storage cluster; the city operation data access node is configured to send data request information to the node monitoring cluster; acquiring encrypted city operation data from the city operation data storage cluster; decrypting the encrypted city operation data to obtain city operation data; and carrying out monitoring processing on the obtained urban operation data. According to the embodiment of the invention, the computing resources and time consumed by the urban operation data monitoring system for monitoring the urban operation data can be reduced, the data safety and the stability of the urban operation monitoring system can be improved, and the situation that the urban operation monitoring system has a single-point fault can be reduced.

The application relates to a kind of implementation methods of verifiable Internet of Things device data asset transaction, based on the data seller, blockchain and data buyer involved in Internet of Things data asset transaction system, the process for realizing verifiable data asset transaction is as follows: data seller publishes encrypted data on blockchain through smart contract, data buyer requests data according to needs and submits verification request.Smart contract is responsible for verifying the integrity and authenticity of data, and transmits decryption key to data buyer after verification.The data buyer decrypts the data using the key and completes the transaction.If the buyer finds that the decrypted data is abnormal, the smart contract is called to initiate arbitration.Through the confusion encryption mode, RSA accumulator technology, hash verification mechanism and on-chain arbitration mechanism, these attack behaviors are effectively resisted, and the privacy, integrity and verifiability of data transaction are ensured.

The invention is suitable for the technical field of layout analysis and storage methods, and provides a standard layout analysis and structured storage method based on intelligent identification, which comprises the following operation steps: S1, data labeling: converting a standard pdf document related to the safety and reliability standard of a robot into a picture form, and carrying out binarization processing on the picture form to obtain a data label; removing the watermark of the image, and performing data annotation on the image to obtain a standard image; s2, coordinate information: carrying out layout analysis on the standard image obtained in S1 through a layout analysis network of multi-scale information fusion. According to the standard layout analysis and structured storage method based on intelligent identification, the retrieval time of the content of the robot standard document is shortened, directory structure information is effectively restored, the storage consumption of the document is reduced, the reading efficiency of the document is improved, a user can conveniently obtain the text information of the robot standard document, and the reading efficiency is improved.