352 results about "Data cache" patented technology

The invention relates to the technical field of cloud computing, and particularly provides a data cache prefetching method and device, a storage medium and a program product. According to the method, file access characteristics representing file access preferences of a user are obtained based on historical access data of the user, a target file meeting a cache prefetching strategy is determined based on the file access characteristics, and the target file is cached and prefetched. By dynamically analyzing the historical access data of the user, the system can adjust the cache content in real time, actively load the data possibly required by the user and ensure that the high-frequency access data is always available, and the mechanism not only improves the data access speed, but also remarkably reduces the influence caused by network delay.

The present application relates to the technical field of wireless communications, and discloses a resource allocation method, apparatus and device, a storage medium and a product, comprising: receiving a scheduling request signaling sent by a user equipment, and determining a signaling interaction time between the user equipment and a base station; sending an initial allocation signaling to the user equipment based on the scheduling request signaling and the signaling interaction time; determining target cache data according to the data cache state and a historical data cache state reported by the user equipment last time; and allocating uplink resources to the user equipment based on the target cache data, and sending a target allocation signaling corresponding to the target cache data to the user equipment. According to the method, multiple cache time slots are allocated to the user according to the signaling interaction time between the user and the base station, so that multi-thread uplink resource allocation is initiated, the user equipment can instantly report a data cache state to a satellite, and user data can be more instantly allocated with resources and transmitted.

Caching techniques can include: receiving, from a host, a read I / O operation requesting to read current content of a logical address; determining whether a data cache includes a data cache entry corresponding to the logical address; responsive to determining the data cache includes the data cache entry corresponding to the logical address, performing data cache hit processing to service the read I / O operation using the data cache entry; responsive to determining the data cache does not include the data cache entry corresponding to the logical address, performing data cache miss processing including: determining whether a mapping cache includes a descriptor corresponding to the logical address; and responsive to determining the mapping cache includes the descriptor corresponding to the logical address, performing mapping cache hit processing to service the read I / O operation using the descriptor of the mapping cache.

The invention relates to the technical field of earthquake and acoustic exploration, and discloses a signal acquisition and transmission method, device, equipment and medium based on a main control unit, and the method comprises the steps: generating a sampling clock signal and a time counting signal, driving an analog-to-digital conversion unit to obtain a digital acquisition signal, and reading equipment state parameters; after the timestamp is added, the digital signal is stored in the first cache unit, the state data after the timestamp is added is stored in the second cache unit, the data signal cache unit is written into a first FLASH partition after being full, and the state data cache unit is written into a second FLASH partition after being full. And after data is read from the FLASH, differential signals are output through the multi-wire parallel interface, the logic processing unit and the serialization unit. According to the invention, power consumption is reduced through unified power management and optimization of clock control and a dormancy mechanism, and transmission bandwidth is improved in combination with high-speed differential output, so that both low power consumption and high efficiency are realized.

The invention relates to an FPGA-based satellite-borne file adaptive storage and scheduling method, which comprises the following steps: defining a data plane and a control plane, the data plane being responsible for high-frequency and high-speed data processing, and the control plane being responsible for low-frequency and low-speed data management and decision making; the data plane obtains a real-time data stream to be stored and stores the real-time data stream into a data cache; monitoring the running state of the data cache in real time, generating cache state data and reporting the cache state data to a control plane; the control plane makes a strategy decision based on the cache state data to generate a target strategy instruction; the data plane obtains the instruction and carries out hardware priority judgment in combination with cache state data so as to determine a final data writing instruction; and the data plane responds to the write-in instruction, executes error correction coding processing, data write-in and file verification processing, and reports a file closing state to the control plane. The method has the advantages that the system can dynamically respond to the real-time system load, and the stability and reliability of system scheduling are improved.

The invention discloses a self-calibration and drift compensation method for an automatic underground water monitoring station, and the method comprises the following steps: 1, transmitting a reference measurement starting instruction to an underground bubble method device by an edge calculation gateway, forming a reference data pair by a bubble method water level reference value and a reference acquisition moment, and writing the reference data pair into a reference data cache region; 2, the edge computing gateway creates a state storage structure and a covariance storage structure; and step 3, the edge computing gateway reads a drift amount estimation value from the state storage structure as a drift compensation amount, and when a drift estimation standard deviation exceeds a set threshold, bubble method hardware reference acquisition is triggered. According to the invention, the problems of high manual calibration cost and lack of independent reference support in pure software estimation in the prior art are solved, so that a monitoring station can stably operate for a long time under an unattended condition and continuously output high-precision underground water level monitoring data.

The invention provides a data cache access method and device of a multi-core processor, and relates to the technical field of computer processors. The method comprises the following steps: accessing a data cache according to an access instruction, and responding to the access instruction to hit access data and write back the access data, or responding to the access instruction to not hit the access data, fetching back-filling data from a memory access failure queue and forwarding the back-filling data to the access queue. Accessing the data cache according to the data storage instruction, writing the stored data into the data cache in response to the access hit of the data cache, or calling a stored data retransmission unit in response to the access miss of the data cache; and sending a data storage failure request to the memory access failure queue, and taking back the backfill data and / or authority by the memory access failure queue. According to the method, the flexibility of the processing mode of the data cache access pipeline on the memory access instruction and the external consistency request can be improved, the access parallelism degree is improved, and the hardware resource utilization rate of the processor is increased.

The embodiment of the invention provides a multi-level cache access method, system and device and a storage medium, and relates to the technical field of data cache access, and the method comprises the following steps: obtaining a key field in a user auditing request, and converting the key field into a feature vector; searching whether a reasoning result corresponding to the feature vector exists in a first preset cache or not; if yes, a reasoning result is returned to the user; if not, a corresponding semantic partition is found in a second preset cache, and a historical cache vector with the highest similarity and a corresponding reasoning result are determined from the semantic partition; and determining a reasoning result corresponding to the feature vector according to the feature vector, a historical cache vector and a reasoning result corresponding to the historical cache vector. In this way, a two-stage cache mechanism based on the feature vector is constructed, a corresponding reasoning result is found in combination with semantic partition, the cache hit rate is increased, repeated reasoning of a large model is reduced, response delay is reduced, and therefore the requirements for high redundancy and high real-time performance of cache data reasoning are met.

The invention provides a hanger CAN signal processing method and device, equipment and an upper system. The hanger CAN signal processing method comprises the following steps: acquiring an original CAN message of a hanger CAN bus; according to a preset data frame structure, packaging the original CAN message to obtain a standardized data frame; analyzing the standardized data frame according to a preset frame description template and the frame identifier of the standardized data frame to obtain a CAN signal mapping relation; verifying the CAN signal mapping relation to obtain a verification result; when the verification result represents that the CAN signal mapping relation meets the preset verification requirement, the CAN signal mapping relation is stored in the data cache pool, processing of the CAN signals of the lifting appliance is completed, multi-protocol compatibility of CAN messages is achieved, redundant transmission of data is reduced, and the CAN signal transmission efficiency of the lifting appliance communication system is improved.

The invention belongs to the technical field of energy storage power stations and microgrids, and particularly relates to a method for automatically identifying industrial equipment based on a configurable protocol of an EMS. A protocol management module containing point location, equipment and business group management is constructed in an EMS system, and equipment connection information of different manufacturers, point location information (integrated into a standard protocol through a business unified identifier) and a business function and point location association relationship are configured, stored in a corresponding data table and refreshed to a general protocol cache. And the data acquisition program calls the corresponding protocol module to acquire real-time data, stores the real-time data in the data cache, and reads the data from the cache during display. According to the method, logic separation of the protocol and the program is realized, heterogeneous equipment of multiple manufacturers can be dynamically adapted without modifying the program, the problem of incompatibility of the protocol is solved, busy equipment bus and data delay are avoided, and the stability and the maintenance efficiency are improved.

The invention discloses a data caching method and device based on a data access request, terminal equipment and a storage medium, and relates to the technical field of data caching, and the method comprises the steps: determining the service priority of each piece of storage data in a service period through the service period, and according to a service scene, determining the service priority of each piece of storage data; determining a first weight of the access record, a second weight of the importance level and a third weight of the service priority, and performing weighted summation according to the access record, the first weight, the importance level, the second weight, the service priority and the third weight to calculate the data heat of each piece of storage data; and storing the storage data of which the data popularity is greater than a preset popularity threshold into a preset data cache region. Therefore, the data popularity of the storage data in each business period and business scene is evaluated from multiple dimensions, and then the storage data with the data popularity greater than the preset popularity threshold value is stored in the data cache region, so that the problem of low hit rate of cache data in the prior art is effectively solved.

The invention provides an integrated edge box with multi-protocol bidirectional conversion and intelligent reasoning, in the edge box, a multi-protocol access and bidirectional semantic conversion module analyzes protocol messages from different protocol devices through a plurality of pre-configured protocol adapters, and an analysis result is written into a unified data cache and message bus module; converting the content of the protocol message into a semantic object; according to a mapping rule defined by the semantic object, the semantic object is converted into a message format required by a target protocol, and semantic-driven cross-protocol bidirectional conversion is realized; the unified data caching and message bus module is responsible for data caching, format unification, inter-module communication and task scheduling; the edge AI reasoning and dynamic decision module obtains equipment data from the unified data cache and message bus module for AI reasoning; according to the scheme of the invention, heterogeneous equipment is enabled to cooperatively operate in a unified intelligent edge system, and cross-protocol semantic intercommunication and intelligent self-adaptive operation in a real sense are achieved.

The invention relates to a frame extraction method and system for a streaming media monitoring video, and the method comprises the steps: a streaming media server receives a frame extraction request sent by a third-party platform, obtains and analyzes a monitoring video stream according to the frame extraction request, carries out the frame extraction of the monitoring video stream according to the frame extraction parameter of the frame extraction request, and carries out the frame extraction of the monitoring video stream; and storing the obtained target binary video frame data to a data cache queue so as to consume and obtain the target binary video frame data from the data cache queue, and performing compression decoding on the target binary video frame data according to an output format of a third-party platform, and returning the compressed and decoded target binary video frame data to the third-party platform. Therefore, the frame extraction logic is embedded in the streaming media server, one-time analysis and multi-time multiplexing are achieved, resource loss is reduced, the resource utilization rate is increased, the response time is shortened by using the data cache queue, and the stability and expandability of the system are maintained.

Embodiments of the present disclosure relate to a memory system and an operating method thereof. The memory system can include a memory device and a memory controller configured to, when receiving a flush command indicating data to be cached in a data cache is flushed to the memory device from a host, flush first data to be cached in the data cache to the memory device, a size of the first data being less than a size of a reference write unit, write first parity associated with the first data to a parity storage block, update a value of a parity location pointer indicating a location where the first parity is written, and set a parity write flag indicating whether parity at a location pointed to by the parity location pointer is valid.

The invention discloses an optimization method for improving knowledge base image data caching processing, a platform can dynamically adjust a caching strategy according to a data access mode and access time change by utilizing a self-adaptive caching strategy combined with access time change and through replacement between two levels of caching strategies, so that the hit rate of caching is improved, and the caching efficiency is improved. According to the method, the access to a back-end database is reduced, the effective utilization of cache resources is ensured, and the platform can respond to the change of a user access mode in real time by dynamically adjusting a cache strategy, so that smoother and more efficient online transaction experience is provided; wherein the first-level cache stores frequently-used and frequently-accessed data, it is ensured that the data can be rapidly accessed, the time for obtaining the data from a rear-end database is shortened, the response speed of the system is improved, meanwhile, the second-level cache serves as a supplement of the first-level cache, more kinds of data are stored, and the coverage rate and efficiency of the cache are further improved.

The invention discloses an intelligent tightening data acquisition method based on a part identification code, and relates to the technical field of data acquisition. According to the method, a tightening result is obtained by scanning a part identification code at a sub-packaging station, a sub-packaging tightening data packet is generated, and a sub-packaging timestamp is recorded; and the same part identification code and the VIN code of the whole vehicle are scanned again at the main line assembly station, compliance verification is carried out on the part identification code based on the BOM list corresponding to the VIN code, only the compliance part is allowed to enter the main line data cache region, and the assembly timestamp is recorded. And through a time window matching algorithm, a matching interval is constructed according to the average transfer time length and the standard deviation of the part types between sub-packaging and assembling, sub-packaging and assembling data are automatically matched, and data verification is executed. And after matching succeeds, binding the subpackage tightening data with the VIN code of the whole vehicle, if a multi-version record exists, executing version control and generating a version chain, and finally uploading the tightening associated data of the whole vehicle to a tightening server.

The application provides a new muon event identification method for a plastic scintillator muon camera imaging detector, comprising: obtaining a muon signal, preprocessing the muon signal, generating muon data, analyzing the muon data, and dividing into special muon events and conventional muon events; respectively testing the special muon events and the conventional muon events, determining valid muon events, storing the valid muon events in a data cache area, and when the number of stored muon events is greater than a preset threshold, outputting all muon events in the data cache area to an upper computer for imaging. According to the inherent characteristics of muons passing through the detection plane, the muon events are divided into conventional muon events and special muon events by using an inside-out scanning method, and the conventional muon events and the special muon events are respectively tested. On the basis of ensuring the existing muon event identification accuracy, the muon events in special situations can be identified.

The application provides a load balancing configuration updating method and device, electronic equipment and a storage medium. The method comprises the following steps: in response to a data change event of a data source, updating original data related to the change event in an original data cache layer, and marking a configuration data cache layer as an invalid state; when a preset configuration checking condition is met, checking whether the configuration data cache layer is in the invalid state; when the configuration data cache layer is in the invalid state, updating configuration data in the configuration data cache layer by using original data in the original data cache layer, and updating the state of the configuration data cache layer to a valid state; and generating a load balancing configuration file based on the updated configuration data in the configuration data cache layer and applying the load balancing configuration file. The core time consumption of configuration updating is changed from real-time calculation to efficient state checking and cache reading, which significantly improves the system response efficiency.

The invention provides a vehicle communication data storage method and device and a vehicle, and the method relates to the field of vehicle-mounted communication, and the method comprises the steps: obtaining the configuration information of a first scene based on the identification information of the first scene carried in a data storage request when the data storage request is detected, the configuration information of the first scene is used for screening corresponding to-be-stored communication data of the vehicle in the first scene; determining a target scene based on the identification information of the first scene and the data cache state of the vehicle; and based on the configuration information of the target scene, storing target communication data of the vehicle in the target scene to a storage space, the target communication data being used for troubleshooting the vehicle. According to the method, the communication data of the vehicle can be stored, so that the troubleshooting efficiency of the vehicle is improved.

This describes a data cache with predictive hints for cache hits. The data cache comprises multiple cache lines, each including a data field, a tag field, and a predictive hint field. The predictive hint field is configured to store a predictive hint that indicates replacement behavior for a cache hit for that cache line. This predictive hint field is integrated with either the tag field or the path predictor field.

Incoming sensor data from a data collection device may be received at the data processing platform that includes the plurality of data processing microservices. A data processing microservice of the data processing platform may detect that the incoming sensor data from the data collection device caused an error. As a result, the incoming sensor data may be queued in a faulty data cache of the data processing platform. Subsequently, at least one of the data processing microservice or the incoming sensor data stored in the faulty data cache may be modified such that the incoming sensor data is processed by the data processing microservice without the error. Following the processing, the incoming sensor data may be deleted from the faulty data queue of the data processing platform.

The invention relates to a cross-system cache data updating method, system, device and medium, and the name and service scene description of a target upper-layer service system are added into a data cache message, so that a data source system can timely and clearly know which service system and which service scene the data is cached. According to the technical scheme, the application range of the cache is visualized and clarified, so that the subsequent data source system can send out the corresponding data change message in a targeted manner, and each upper-layer service system changes the data cached by the upper-layer service system in a targeted manner according to the corresponding data change message. Moreover, the data cache message and the data change message are sent in combination with the theme of the message queue, so that the cache data of the at least one upper-layer service system and the data of the data source system are synchronously changed in time, and chaos is avoided.

This invention relates to the field of chip technology, and more particularly to a data caching architecture, including a cache control module, N cache queues, and a shared cache; the shared cache includes M storage units; the cache control module is used to sequentially acquire data to be cached, A x For the x-th cached data, A x ={A1 x A2 x A3 x}, A1 x For A x The corresponding cache queue identifier, A2 x For A x The corresponding first and last valid data information, A3 x For A x The corresponding cached data; the cache control module is used to retrieve A x At that time, retrieve a valid memory cell B from the shared cache whose status is invalid. x , A3 x Stored in B x In the middle, B x The valid identifier state is set to valid, and an A is generated. x The corresponding queue cache information {D x E x ,F x}, store in A1 x The corresponding cache queue. This invention improves the chip's energy efficiency and performance.

This invention discloses a data management method and electronic device for a storage device, belonging to the field of storage technology. The data management method includes: when the lifetime of the hold table is less than the lifetime of the hold data area, writing data from the data cache to non-volatile memory, and the storage device entering a hibernation mode; when the lifetime of the hold table is greater than the lifetime of the hold data area, determining whether the data size in the data cache has reached a flush threshold; if the data size reaches the flush threshold, writing the data to non-volatile memory, and the storage device entering a hibernation mode; if the data size does not reach the flush threshold, saving the data to the hold data area, recording the boundary marker information of the data in the hold data area, and writing the system management data table to be migrated from the hold table to the non-volatile memory, and the storage device entering a hibernation mode. The data management method and electronic device for a storage device provided by this invention can extend the lifespan of the storage device.

The invention provides a data scheduling method, a controller, a transmission system, equipment and a storage medium, and relates to the technical field of communication. The method is applied to a data scheduling controller, and comprises the following steps: acquiring first temporary storage time of first to-be-scheduled data in a data cache unit; determining whether the first to-be-scheduled data is overtime scheduling data according to the first temporary storage time; and when it is determined that the first to-be-scheduled data is the overtime scheduling data, scheduling the overtime scheduling data to a data receiving unit. The data scheduling process is completed by the data scheduling controller, and the processor does not need to execute a software scheduling algorithm, so that the problem that software scheduling consumes computing resources of the processor is solved.

The application discloses a digital oscilloscope variable sampling rate acquisition and storage device, which comprises a data acquisition module, an upper computer, a data preprocessing module and a data cache module. The data acquisition module acquires data and sends the data to the data preprocessing module. The upper computer sets a threshold start position, a threshold end position and a sampling rate increase multiple according to user needs, and sets parameters for the data preprocessing module and the data cache module. According to control signals of the upper computer and the data cache module, the data preprocessing module changes the data extraction multiple, thereby changing the data sampling rate, and sends the data after the extraction to the data cache module. The data cache module caches the data, and sends control signals to the data preprocessing module according to the data cache condition. The application can adopt the variable sampling rate in the same waveform data, so that the user can observe the waveform details without wasting the storage space.

The invention provides a data cache fault diagnosis method and device, electronic equipment and a storage medium. The method comprises the following steps: acquiring initial first data; writing the first data into the to-be-diagnosed set by utilizing a memory address matched with the to-be-diagnosed set in the data cache in the memory data area; reading second data from the set to be diagnosed; if the second data is consistent with the first data, updating the first data and returning to execute the step of writing the first data into the to-be-diagnosed set until the updating frequency of the first data is greater than the frequency threshold value so as to complete fault diagnosis of the to-be-diagnosed set; switching a next set in the data cache to serve as a to-be-diagnosed set, and returning to execute the step of obtaining the initial first data until fault diagnosis of all the sets in the data cache is completed; and if the second data is not consistent with the first data, determining that the to-be-diagnosed set has a fault, thereby completing fault diagnosis of the data cache.

The application discloses a multi-core cache consistency debugging method based on multi-view access and belongs to the field of multi-core processor debugging. The method is characterized in that a target address is specified in a main memory by a host computer through a JTAG debugging interface, five groups of data of CPU view, L1 data cache view, L1 instruction cache view, L2 view and real memory view corresponding to the address are read in turn, whether cache is invalid is judged by comparing data consistency, and a cache level inconsistent is marked. The debugging system comprises a built-in JTAG TAP controller, an enhanced debugging access module, a storage level access arbitrator and a data and state collector. The application realizes direct access of the JTAG interface to data of each level of cache, does not need to modify hardware or disable cache, does not interfere with system operation, can quickly locate cache consistency problems under a multi-core architecture, improves debugging efficiency and accuracy, and is suitable for debugging scenes of large-scale multi-core processors.

The invention discloses a data processing method, electronic equipment and a storage medium. The method comprises the steps that in response to a received cache updating instruction of the data processing system, data configuration information of the data processing system is obtained, and the cache updating instruction is generated based on data updating operation of the data processing system; analyzing the data configuration information to obtain a data cache type of the data processing system, the data cache type being used for representing a data type for caching in the data processing system; based on the data cache type, a data updating instruction corresponding to a data cache region in the data processing system is generated, and the data cache region is used for storing cache data of the data processing system; and based on the data updating instruction and the updating data of the data processing system, updating the cache data of the data cache region. According to the method and the device, the technical problem of relatively low cache data updating efficiency in related technologies is solved.

This disclosure provides a hot data push system and method. The hot data push system includes: a data acquisition module configured to acquire data generated by an external device; a data identification module configured to receive the acquired data and identify the acquired data according to a hot data dictionary; a hot data push module configured to receive the identified hot data and push it; and a data reading node configured to cache the pushed hot data and update the pushed hot data to the data cache dictionary.