2144 results about "Access method" patented technology

The invention relates to an intelligent equipment access system and access method based on an AI large model, and relates to the field of artificial intelligence and Internet of Things. According to the technical scheme, a dynamically adaptive universal object model access framework is constructed, functional attributes, control instructions and data formats of intelligent devices of different brands and protocols are mapped into a standardized logic model, meanwhile, a multi-mode AI large model engine is combined, high-precision voice recognition, voiceprint feature detection and multi-level semantic intention analysis capabilities are integrated, and the intelligent devices of different brands and protocols can be obtained. And an intelligent interaction closed loop of end-cloud collaboration is formed. Semantic analysis adopts a mixed strategy, a natural language instruction is converted through function mapping, a local knowledge base is utilized to match user scene requirements, and external data is queried by means of cloud networking to optimize instruction logic. According to the scheme, the multi-device access and operation and maintenance cost is remarkably reduced, the semantic understanding accuracy and scene adaptability are improved, and the method is widely applied to the fields of smart home, smart medical treatment and industrial Internet of Things.

The invention discloses an adjustable load security access method for a virtual power plant, and relates to the technical field of power system automation, and the method comprises the following steps: in the operation process of a virtual power plant scheduling system, after an upper-layer scheduling center issues a unified adjustment instruction according to an operation demand, all access nodes are monitored in real time, and the adjustment instruction is sent to the upper-layer scheduling center; the method comprises the following steps: receiving a scheduling instruction from an access node, collecting response behavior data of the access node to the scheduling instruction, preprocessing the collected original response data of a single node, and carrying out unified coding and formatted storage on historical and current response behaviors according to node identification and scheduling time sequence information to construct a structured data set. According to the method, accurate identification and dynamic correction of the adjustable load frequency response offset risk in the virtual power plant are realized, the heterogeneous load perception and control capability is improved, frequency staggering resonance and scheduling failure caused by inconsistent response are avoided, the system cooperative adjustment stability and the load safety access reliability are enhanced, and the method has a good application prospect.

The invention relates to the technical field of geographic information systems, in particular to a map tile data efficient access method and system based on hybrid storage and intelligent layering, and the method comprises the following steps: constructing a multi-level storage architecture, carrying out dynamic heat analysis, carrying out intelligent layering scheduling, preloading and space prediction, and carrying out transmission and access optimization. The method has the beneficial effects that the multi-level storage pool is constructed by combining the advantages of object storage and a distributed file system; adopting a dynamic tile popularity analysis model to realize hot data cache acceleration and cold data hierarchical archiving; and meanwhile, a tile request preloading mechanism is introduced, and an access path is optimized in combination with a spatial locality prediction algorithm. According to the method, the storage cost can be remarkably reduced, the tile request delay is reduced, quick response in a high-concurrency scene is supported, and the method is suitable for application scenes such as Internet map services and smart cities.

The invention discloses a memory access method, a program product, equipment and a medium, and relates to the technical field of computers, firmware is utilized to determine to-be-reserved physical memory information, the to-be-reserved physical memory information is analyzed and continuously split to obtain physical memory segments, and the physical memory segments are divided and aligned; dividing the virtual address space, and performing alignment processing on the divided virtual address space; performing memory mapping on the processed physical memory segment and a physical address space corresponding to the processed virtual address space; generating a page table by utilizing a physical address space corresponding to the mapped and processed virtual address space; when an access instruction of a user is obtained, the corresponding target physical address space is screened from the page table to determine the mapped target physical memory segment, so that the user accesses the target physical memory segment based on the user mode process, the range and capacity of the memory segment are dynamically configured, the stability of the memory during key load operation is guaranteed, and the memory access performance is improved.

The embodiment of the invention provides a memory access method and device, electronic equipment and a readable storage medium. The method comprises the following steps: receiving a cache line access request; extracting label information from a target memory address corresponding to the cache line access request, wherein the label information comprises a shared label, a private label, a group index, inter-block offset and intra-block offset; querying whether the cache line access request hits the L1 cache or not based on the label information; the group index is used for determining a target group, the shared tag and the private tag are used for determining a target cache line in the target group, and the inter-block offset is used for determining a target cache block in the target cache line; and if the cache line access request hits the L1 cache, determining a target data position in a hit target cache block based on the in-block offset, and executing a corresponding memory access request based on the target data position. According to the embodiment of the invention, on the basis of ensuring the data access efficiency, the storage space of the cache line is fully utilized, and the waste of the cache space is reduced.

The present application relates to the technical field of data storage. Disclosed are a multi-source heterogeneous distributed system, a memory access method and a nonvolatile readable storage medium. The method comprises: a first unified interconnection bus unit receiving, by means of a protocol adaptation interface module, a read request sent by a first device, and setting the cache state of a first memory unit to be an invalid state; sending to a second unified interconnection bus unit of a second device a request message obtained by packaging the read request, the second unified interconnection bus unit reading data from a second memory unit; setting the cache state of the second memory unit to be a shared state, and sending to the first unified interconnection bus unit a response message, the first unified interconnection bus unit storing in the first memory unit data carried by the response message; and setting the cache state of the first memory unit to be a shared state. Thus, deploying a unified interconnection bus unit on each device can achieve a consistent memory communication between the devices, thereby achieving memory sharing, and further improving the performance of the multi-source heterogeneous distributed system.

The invention provides a data sharing network security privacy hierarchical control trust access method and device, and relates to the technical field of data access. The method comprises the following steps: acquiring a data identifier input by a target user at a target client, and performing primary verification; under the condition that the first-level verification is passed, the fingerprint of the target client is obtained, and second-level verification is carried out; under the condition that the second-level verification is passed, login information input by a target user at a target client is obtained, and first dynamic verification information and second dynamic verification information are sent to the target client; acquiring third dynamic verification information and fourth dynamic verification information input by the target user at the target client, and performing third-level verification; under the condition that the three-level verification is passed, determining an environment risk assessment value, and under the condition that the environment risk assessment value is smaller than a preset threshold value, passing the ultimate verification of the target user; a temporary token is generated for the target user. According to the method, the data sharing efficiency can be greatly improved while the compliance is ensured.

The invention provides a chip system and an access method, relates to the technical field of chips, and improves the data access performance of a high-performance computing system. According to the specific scheme, the chip system comprises a snoop filter, a plurality of processor cluster nodes and a plurality of memories, the processor cluster nodes are coupled through a bus, the snoop filter is coupled with the bus, the processor cluster nodes are in one-to-one correspondence with the memories, and the snoop filter adopts a unified directory format. The snoop filter is used for obtaining an access request initiated by the processor cluster node, and the access request comprises address information. The snoop filter is further used for determining an access mode of the access request based on the address information, wherein the access mode comprises a unified memory access mode and a non-unified memory access mode. The processor cluster node is to access the memory based on the access pattern and the access request. The embodiment of the invention is used for the process of accessing the memory by the processor cluster node.

The invention provides a modularized integrated circuit unit and a distributed storage unit access method and system, and the modularized integrated circuit unit comprises at least one memory controller which sends a storage address access request to a storage unit; the at least one storage unit provides unified memory access for the storage address access request, and the storage unit comprises a local storage unit and a virtual far-end storage unit; the at least one computing unit initiates a storage address access request; and the at least one internet-on-chip is used for interleaving the storage address indicated by the storage address access request, generating interleaved storage address distribution, determining a corresponding target storage unit, and storing the target storage unit by setting a local storage unit and a virtual far-end storage unit. Uniform address access and load balancing of the distributed storage units on the modularized integrated circuit units are achieved through the address interleaving technology and the virtual storage mapping, the resource utilization rate is increased, and the performance and usability of the distributed storage system are improved.

A metadata access method, apparatus, and computer-readable storage medium for efficient metadata retrieval through cache management. The method receives metadata query requests including target index information from processes and performs matching operations on a global cache file containing records with index information and slot identifiers. Each cache description array corresponds to memory blocks caching metadata. Upon successful matching, the target cache description array is accessed using the target slot identifier. The data state of target metadata is determined from the cache description array, and target address information indicating the location of the target memory block in shared memory is obtained and returned to the requesting process, enabling efficient shared memory-based metadata access.

The invention provides a multi-core GPU cache division method, architecture and data access method, relates to the technical field of graphics processor design, and aims to realize cross-core access performance system-level optimization and improve the performance of processing large-scale image data by introducing a cache allocation mechanism based on topology awareness. The method comprises the steps that a multi-core-grain GPU topological structure comprising a target computing core grain and at least one associated computing core grain is obtained, a to-be-divided far-end data cache of the target computing core grain is used for caching image data from a far-end video memory, and the to-be-divided far-end data cache is connected with the associated computing core grain through an inter-core-grain interconnection network; if the number of the calculation core particles contained in the multi-core-particle GPU does not exceed a first preset threshold value, the inter-core-particle hop count between each associated calculation core particle and a target calculation core particle is determined based on the topological structure, and then the corresponding capacity of the associated calculation core particles in the to-be-divided cache of the target calculation core particle is determined; and dividing the to-be-divided cache according to the capacity corresponding to each associated calculation core particle.

The invention discloses an access method, device and equipment and a computer readable storage medium, which are applied to the technical field of computers, and comprise the following steps: loading a consistency label list corresponding to an authorized access consistency domain; when an access request is initiated to a target consistency domain in the shared memory, performing permission verification on the access request through the consistency label list and the target consistency domain; when the permission verification is passed, determining whether an access conflict exists or not through a local access state cache and the type of the access request; if the access conflict exists, a controller arbitration engine is triggered, and the access request is executed according to an arbitration result; and if the access conflict does not exist, executing the access request. According to the method, the consistency label list and the access state cache are formulated for each device, the consistency problem existing when multiple devices access the shared memory in an existing system is solved, and efficient, low-conflict and flexible consistency guarantee can be achieved under the scene that multiple devices concurrently access the shared memory.

The invention provides a mobile application security access method based on randomness, and relates to the field of mobile application security, and the method comprises the steps: firstly, sending request information to a server through a client, and then carrying out the risk assessment of the request information through the server by using a deep learning algorithm, including the extraction of a user identity, an operation type and context information; and in combination with real-time security threat intelligence, dynamic response coding characteristics are generated by utilizing structured and semantic coding technologies, and the risk level of the request is calculated, so that the challenge complexity is dynamically adjusted, and random challenges are generated and sent to the client. And after the client responds, the server verifies the correctness so as to decide whether to continue service processing or deny access. Thus, risks can be quantified within milliseconds, the delay and stiffness problems of a traditional static strategy are solved, and efficient safety protection and good user experience balance are achieved.

The invention discloses a memory access method and device, a storage medium and a program product, and relates to the technical field of memory access, comprising: monitoring memory access information of a target memory; the memory access information comprises a missing page address sequence during memory access, an address distribution characteristic when an address conversion failure event occurs in an address conversion lookaside buffer, a cross-node access event and a virtual memory access frequency; determining corresponding target feature information; the target feature information comprises spatial locality, thermal density, access dispersion and unbalance degree data; and determining a current memory access mode based on the target feature information, and determining a target access strategy from preset memory access strategies configured with different memory page table prefetching rules to access the memory. The memory access feature information is quantified through the memory access information, the corresponding memory access mode is determined, and the corresponding memory page table prefetching rule is executed, so that the traversal delay of the multi-level page table can be reduced, and the memory access performance is improved by fully utilizing the memory bandwidth.

In a cross-security-region resource access method in a cloud computing system, a virtual block device, which is simulated by a virtio protocol-based BLK front-end driver in the cloud computing system and taken as an RPC calling client, receives an IO access request for data resources maintained by a resource service program triggered by a business application installed on each virtual node through a simulated RPC channel on the virtual block device; in response to the IO access request, encapsulates the IO access request into an RPC request for performing an RPC calling for target data resources, sends the RPC request to a RPC calling server program simulated by a virtio protocol-based BLK service through the RPC channel, so that the RPC calling server program submits the RPC request to a resource access agent program, which submits the RPC request to the resource service program to complete cross-security region resource access.

The embodiment of the invention discloses an access method in a distributed file system, computing equipment and file access equipment. The method is applied to a first metadata node, the first metadata node belongs to the multiple metadata nodes, the same directory information is stored in each metadata node in the multiple metadata nodes, and the directory information is used for storing directory metadata of the distributed file system. The method comprises the following steps: receiving a first access request from a client, wherein the first access request comprises an object path to be accessed; determining first file fragment information corresponding to first metadata according to the directory information and the to-be-accessed object path; determining an operation result corresponding to the first metadata according to the first file fragment information and the fragment routing information of the first metadata node; and sending the operation result to the client.

The invention discloses a storage system supporting Cache and RAM double-form access and an access method thereof, and the system comprises a data storage array which is divided into a plurality of structured storage sub-blocks; the storage mode register is used for storing a configuration value, and the configuration value is used for dynamically configuring each storage sub-block to work in a Cache mode or an RAM mode, so that the data storage array works in a full Cache mode or a full RAM mode or a Cache and RAM coexistence mode; and the storage access control logic is used for arbitrating the storage access request, mapping the storage access request to the corresponding storage sub-block for read-write access according to the access address and the configuration value, activating the storage sub-block mapped by the storage access request, and inactivating the storage sub-block not mapped by the storage access request. According to the method, dynamic configuration is achieved, access of Cache and RAM forms is supported at the same time, part of or all memory banks can be configured to be Cache or RAM, the advantages of the two memory forms are utilized at the same time, parallel access of a plurality of memory sub-blocks is supported, use is flexible and efficient, and power consumption is reduced.

The invention discloses an equipment access method, device and equipment based on address space identification. The method is applied to simplifying an equipment memory management unit and comprises the steps of establishing each single-level range table; acquiring an equipment access request, reading an address space identifier and a virtual address from the equipment access request, and matching a corresponding target range table from each single-level range table based on the address space identifier; and calculating a target physical address according to the target range table and the virtual address, and establishing equipment access based on the target physical address. By replacing a traditional multi-level page table with a single-level structure, the data structure design of address mapping is simplified, the dynamic configuration complexity is reduced, and hardware formal verification is facilitated. Through direct matching of the address space identifier, the traditional steps of analyzing the equipment identity identifier and querying the external table item are omitted, and the external memory access frequency is reduced. By calculating the target physical address and establishing access, the hardware address conversion logic is simplified, the hardware implementation cost and power consumption are reduced, and the data transmission efficiency is improved.

The invention discloses a data index secure access method and related equipment, and relates to the technical field of data processing.The method comprises the steps that in response to a data access instruction, a dynamic index topological structure matched with a current network delay jitter value is generated based on a dynamic behavior fingerprint of a request terminal; performing real-time reconstruction on the dynamic index topological structure based on spatial and temporal distribution characteristics of the dynamic behavior fingerprints to generate an anti-collision verification path; a quantum noise signal is injected into the anti-collision verification path to form a cross-layer verification channel; performing asymmetric hash chain verification on the target data index through a cross-layer verification channel, and generating a verification result containing a fuzzy topology mark; performing dynamic remapping on the original index node according to the fuzzy topology mark, and outputting a security data index; and performing data access based on the secure data index. According to the method, the dynamicity, the unpredictability and the anti-analysis capability of the index path are realized, and the security and the anti-attack capability in the data access process can be comprehensively improved.

The invention discloses an Internet of Things secure access method based on cloud edge collaboration, which comprises the following steps: firstly, an Internet of Things device and an edge server respectively register in a CSC (Content Service Controller), and obtain an intelligent card or related data to complete information updating and storage; the equipment is inserted into an intelligent card to log in, and data are sent to the edge server after identity password verification; the edge server verifies the timestamp and then forwards the data to the CSC; the CSC verifies the timestamp and the identity, generates a session key parameter and sends the session key parameter to the edge server; the edge server verifies the identity of the CSC and then generates session key encrypted data to be transmitted back, and after the verification of the device is passed, secure communication is established. According to the method, mutual verification and encryption protection are adopted in identity verification; a timestamp, a random value and strict verification are used for message transmission to prevent replay and man-in-the-middle attack; secret key management guarantees safety through dynamic change of secret values, attacks such as physical capture are resisted in combination with PUF, and communication safety is comprehensively guaranteed.

The invention relates to a distributed storage access method initiated by a GPU (Graphics Processing Unit) in an AI (Artificial Intelligence) scene. The method comprises the following steps: S100: constructing a software cache module and an I / O (Input / Output) queue module in a GPU memory; s200, the GPU thread queries the target data through the software cache module, reads the target data if the target data is hit, and enters the next step if the target data is not hit; s300, when the I / O request is not hit, the repeated I / O requests initiated by multiple threads are automatically combined to generate a single effective I / O request, and the request is written into an I / O queue module; s400, the user mode distributed storage client monitors the written submission queue, reads the target data and then transmits the target data to the software cache module, and a completion queue of the I / O queue module is updated; and S500, the GPU thread polls the updated completion queue, and updates the reference count of the software cache module after reading the data. The main purpose of the invention is to realize high-throughput and low-delay data transmission without the participation of a CPU (Central Processing Unit).

The embodiment of the invention provides a distributed data service cluster access method and device, electronic equipment and a storage medium, and belongs to the technical field of finance and the field of medical services, and the method comprises the steps: obtaining a target business request from a target business scene and cluster configuration information of a distributed data service cluster; determining a target service cluster in a plurality of distributed data service clusters based on the target service request; searching a corresponding cluster access instance in a historical instance library according to the cluster configuration information; if the matched cluster access instance is found, determining the found cluster access instance as a target cluster access instance; if the cluster access instance is not found, creating a target cluster access instance according to the cluster configuration information; and performing data access on the target service cluster through the target cluster access instance to obtain target response data. According to the embodiment of the invention, the development complexity caused by environment change of the distributed data cluster can be reduced, so that the stability of data access is improved.

One or more embodiments of the invention provide a unified access method and device for heterogeneous data sources, a storage medium and a program product. The uniform access method for the heterogeneous data sources is applied to a uniform access platform, the uniform access platform maintains a routing rule set for each heterogeneous data source, and the routing rule set is used for describing a query mode of fields, mapped in a virtual view of the uniform access platform, of the heterogeneous data sources in the heterogeneous data sources; the method comprises: receiving a query statement; determining a target virtual view involved in the query statement, and screening out a target routing rule matched with the query field in the query statement from a routing rule set corresponding to the target virtual view; according to the query statement and the target routing rule, generating a query request for a heterogeneous data source pointed by the target virtual view; sending the query request to a heterogeneous data source pointed by the target virtual view to obtain query content; and based on the query content, generating a query result of the query statement and returning the query result.

The invention provides an access method and device, which are applied to the fields of environmental Internet of Things (Ambient IoT) and the like, and the method comprises the following steps: sending a first random access request to network equipment; receiving a random access response message from the network equipment; the random access response message comprises first confirmation information and second confirmation information; the first confirmation information is used for indicating that the random access of the first terminal equipment corresponding to the first random access request is successful. Through the above process, after the network equipment receives a plurality of random access requests at the same time unit, the confirmation information corresponding to each random access request in the plurality of random access requests can be carried through one random access response message, so that the competition solution of a plurality of terminal equipment is completed through one random access response message; the multiple terminal devices are enabled to complete random access, the random access capacity is improved, and the random access efficiency is improved.

The embodiment of the invention provides a consistency directory access method, a directory controller and computer equipment, and the method comprises the steps: obtaining an access request which is used for accessing cache information of a target cache data block in a consistency directory; the consistency catalog comprises a coarse-grained catalog and a fine-grained catalog; judging whether the access request hits a directory cache or not, wherein the directory cache caches a part of items with a consistent directory; if the access request hits the directory cache, judging whether the access request causes the state change of the target cache data block in the consistent directory record or not; and if the access request does not cause the state change of the target cache data block recorded in the consistent directory, determining response information of the access request based on cache information of the target cache data block hit in the directory cache. According to the embodiment of the invention, the access overhead of the consistency directory can be reduced, and the performance of a computer system is improved.

The embodiment of the invention provides a network application access method and related equipment, a security protection system receives a first message from a terminal, the first message comprises an application layer message header, the application layer message header in the first message carries a first virtual IP address corresponding to a user identifier, and the user identifier is an identifier of a user logging in the terminal; the first virtual IP address is an IP address in a second network; the security protection system obtains a second message based on the first message, the second message comprises an IP basic header, and a source IP address field in the IP basic header in the second message carries a first virtual IP address; and the security protection system sends the second message to the server. According to the embodiment of the invention, the difficulty of tracing to the user based on the message source IP can be reduced.

The invention relates to an equipment access method and device, an electronic device and a storage medium, and the equipment access method comprises the steps: obtaining metadata notification packet information of target access equipment, determining an equipment protocol type of the target access equipment according to the metadata notification packet information and preset feature library data, and sending the equipment protocol type to the target access equipment; and determining a protocol analysis plug-in according to the device protocol type, loading the protocol analysis plug-in to extract a device capability set, mapping the device capability set to a national standard registry to determine a national standard mapping result, and adding the target access device to the national standard management platform according to the national standard mapping result. Through the application, the problem of how to access the equipment only supporting standard streaming media output to the platform meeting the national standard protocol requirement is solved, the access and management of the multi-protocol standard streaming media equipment to the national standard platform are realized, the process is simplified, the system integration complexity and development cost are reduced, and the method has good compatibility and expansibility, and is suitable for popularization and application. The system stability and the resource utilization rate are improved.

The invention discloses a server system based on a public cloud technology and an access method thereof, and belongs to the technical field of cloud services. The server system comprises a server and an external device inserted in the server. A virtual machine manager in the server is used for providing a virtual external device and a virtual memory for a virtual machine in the server, the virtual external device is obtained through device simulation based on the external device, and the virtual memory is obtained through device simulation based on a memory configured for the external device. The virtual device driver of the virtual external device is used for sending an access request carrying the target GPA to the external device when the virtual external device accesses the target GPA of the virtual memory. And the external device is used for obtaining a target host physical address corresponding to the target client physical address based on the access request, obtaining target data recorded by the target host physical address, and sending the target data to the virtual device driver. According to the invention, the address translation performance of the server system is effectively improved.

The invention provides a resource access method and device, a zero-trust platform and a storage medium, and the method comprises the steps: receiving an internal resource access request of a zero-trust client, the access request carrying an access address of a target resource, user information of the zero-trust client, and temporary authentication information; the access address comprises a zero-trust platform domain name and a target resource identifier, the zero-trust platform domain name points to a public network address of the zero-trust platform, and the target resource identifier is used for uniquely identifying a target resource; the temporary authentication information is used for authenticating that the zero-trust client has the qualification of initiating the access request; based on the user information and the temporary authentication information, verifying the user identity and the access authority of the zero-trust client; after the verification is successful, determining a real address of the target intranet server based on a pre-configured mapping relationship between the real address of the intranet server and the internal resource identifier; and forwarding the access request to the target intranet server according to the real address of the target intranet server.

The invention relates to an Internet of Things terminal zero-trust access method and device. The method comprises the following steps: a controller obtains a first SPA single-packet knocking authentication message from an Internet of Things terminal; determining the type of the Internet of Things terminal based on the first SPA single-packet knocking authentication message, wherein the type comprises an account user or a fingerprint user; according to the type and the first SPA single-packet knocking authentication message, performing first authentication verification on the Internet of Things terminal; after the first-time authentication verification is passed, a second-time SPA single-packet door knocking authentication message from the Internet of Things terminal is acquired; carrying out second-time authentication verification on the Internet of Things terminal based on the second-time SPA single-packet knocking authentication message; and after the second authentication verification is passed, accessing the Internet of Things terminal to a zero-trust gateway. According to the method and the device, the access security of the Internet of Things terminal can be ensured, dynamic authority control and accurate access management of different types of terminals can be realized, and the security and maintainability in an industrial Internet of Things environment can be remarkably improved.