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915 results about "Data buffer" patented technology

In computer science, a data buffer (or just buffer) is a region of a physical memory storage used to temporarily store data while it is being moved from one place to another. Typically, the data is stored in a buffer as it is retrieved from an input device (such as a microphone) or just before it is sent to an output device (such as speakers). However, a buffer may be used when moving data between processes within a computer. This is comparable to buffers in telecommunication. Buffers can be implemented in a fixed memory location in hardware—or by using a virtual data buffer in software, pointing at a location in the physical memory. In all cases, the data stored in a data buffer are stored on a physical storage medium. A majority of buffers are implemented in software, which typically use the faster RAM to store temporary data, due to the much faster access time compared with hard disk drives. Buffers are typically used when there is a difference between the rate at which data is received and the rate at which it can be processed, or in the case that these rates are variable, for example in a printer spooler or in online video streaming. In the distributed computing environment, data buffer is often implemented in the form of burst buffer that provides distributed buffering service.

Integrated forest fire intelligent analysis method and system

The invention relates to the technical field of forest fire management, in particular to an integrated forest fire intelligent analysis method and system. The system comprises a background service system, a central intelligent analysis system and a mobile intelligent analysis system. The background service system is deployed in a cloud computing server cluster and is used for uniformly storing personnel information, fire scene information and geographic information data and realizing multi-source data fusion and authority management through a standardized API (Application Program Interface); the central intelligent analysis system is deployed in a high-performance computer, integrates a forest fire danger auxiliary decision-making model, a forest fire spreading trend prediction model, a force distribution dynamic display module and a collaborative plotting module, and supports fire spreading prediction and real-time decision-making instruction issuing based on multi-dimensional data such as weather, terrain and vegetation; the mobile intelligent analysis system realizes fire spreading trend analysis, mobile plotting and instruction receiving in an offline environment, supports offline data caching and calling in an emergency scene, and effectively improves forest fire emergency response efficiency and resource scheduling accuracy.
Owner:BEIJING AINIBABY HEALTH MANAGEMENT CO LTD

High-speed data communication method and system based on synchronous triggering and parallel transmission

The invention relates to the technical field of embedded systems, and provides a high-speed data communication method and system based on synchronous triggering and parallel transmission. The method comprises the following steps: configuring a master timer, a plurality of slave timers and a corresponding number of DMA (Direct Memory Access) channels in an MCU (Microprogrammed Control Unit), and setting a data buffer area corresponding to each DMA channel; configuring a main timer to generate a synchronous trigger signal with a target sampling rate, and driving all slave timers to generate synchronous update events with sequentially delayed phases as parallel DMA trigger signals; the signals are utilized to control each DMA channel to alternately transmit external equipment data to a corresponding area of the buffer area in parallel; and finally, performing time sequence recombination on the multi-region data according to the phase sequence of the update event, and restoring a complete sampling sequence. The rate bottleneck of a single DMA channel is broken through, the aggregation bandwidth of multiple DMA channels is utilized, high-sampling-rate data collection far exceeding the single DMA limit is achieved under limited hardware resources, and the system data throughput rate is effectively improved.
Owner:SHENZHEN PHOENIX TECH CO LTD

Cross-border e-commerce abnormal transaction behavior risk prediction method based on graph neural network

The invention discloses a cross-border e-commerce abnormal transaction behavior risk prediction method based on a graph neural network, and the method comprises the steps: synchronously collecting multi-source data of a cross-border e-commerce platform, and writing the multi-source data into a data buffer region according to a unified event timestamp; mapping the multi-source data into a heterogeneous dynamic transaction graph; in the current time window, performing structure comparison on the historical transaction graph and the heterogeneous dynamic transaction graph to generate a structure difference sub-graph, and performing normalization processing to obtain a residual graph; splicing the heterogeneous dynamic transaction graph and the residual graph, inputting the spliced graph into a time sequence graph neural network, obtaining a risk embedding vector of a target transaction sub-graph, and calculating an abnormal score through a mapping function; and comparing the abnormal score with a first threshold value, outputting a risk level of the corresponding transaction and triggering early warning. The cross-border e-commerce abnormal transaction behavior risk can be quickly and accurately identified and predicted, the active identification and real-time early warning of the abnormal transaction risk can be realized, and the real-time performance and accuracy of the risk management of the cross-border e-commerce platform can be greatly improved.
Owner:JIANGSU MARITIME INST +1

Data cache prefetching method and device, storage medium and program product

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.
Owner:CHINA MOBILE (SUZHOU) SOFTWARE TECH CO LTD +1

Data cache optimization method, device and equipment for vehicle regulation MCU (Microprogrammed Control Unit) and storage medium

The invention provides a data cache optimization method, device and equipment for a vehicle-specification MCU and a storage medium, and the method comprises the steps: building a multi-target cache decision through predicting the future data access probability distribution, and giving consideration to the real-time performance and the memory utilization rate. A cache is divided into logic partitions with different priorities, and the sizes of the partitions are dynamically adjusted, so that a self-adaptive cache layout is formed. In combination with access probability distribution and a partitioning strategy, a dynamic pre-fetching threshold value is set, data pre-fetching is executed, and elimination and updating are performed in a task execution period, so that the caching efficiency and stability of a vehicle gauge MCU in a high-temperature and strong-vibration environment are improved, and the method is suitable for a vehicle-mounted control system with strict requirements on safety and performance.
Owner:BESITER CO LTD +1

Resource allocation method and device, equipment, storage medium and product

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.
Owner:PENG CHENG LAB

Database access parameter real-time cooperative processing method and device based on multi-level cache

The invention discloses a database access parameter real-time cooperative processing method and device based on multi-level cache, and belongs to the technical field of computer data caching. The method comprises the steps that a version number management table is configured; establishing a four-level cache architecture of a transaction-level cache layer, a process-level cache layer, a distributed cache layer and a database cache layer; receiving a transaction request, creating a transaction level cache layer and loading current version number information; comparing the version number in the transaction level cache layer with the version number in the process level cache layer; according to the version number comparison result, obtaining parameter data from the corresponding cache level according to a preset cache access priority strategy; and when the parameter change is detected, updating the corresponding version number in the version number management table, and updating the cache layer data as required. According to the method, real-time global effectiveness of parameter change is realized, parameter consistency of in-transit transaction is guaranteed, system processing performance and throughput are improved, system reliability and fault-tolerant capability are enhanced, and system resource utilization rate is optimized.
Owner:SHANDONG CITY COMMERCIAL BANK COOP ALLIANCE CO LTD

Data processing unit, distributed system and chip

The invention relates to a data processing unit, a distributed system and a chip, and the method comprises the steps: a first RDMA engine receives a first network message sent by a previous network node, analyzes the first network message to obtain first data, writes the first data into a first data buffer region, and reports a first receiving notification to a first processor in a reduction stage; the first processor reads the first data from the first data buffer area according to the first receiving notification, reads the second data from the local GPU memory, performs reduction calculation based on the first data and the second data to obtain third data, writes the third data into the first data buffer area, and issues a first sending notification to the first RDMA engine; the first RDMA engine reads third data from the first data buffer area according to the first sending notification, generates a second network message according to the third data, and sends the second network message to the next network node; according to the invention, the computing power of the network node and the utilization rate of the bandwidth can be improved.
Owner:SHENZHEN JAGUAR MICROSYSTEMS CO LTD

Caching techniques using a mapping cache and a data cache

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.
Owner:DELL PROD LP

Vehicle-mounted power supply short circuit heat prediction method based on big data analysis

The invention discloses a vehicle-mounted power supply short-circuit heat prediction method based on big data analysis, and the method comprises the following steps: collecting real-time operation data, and storing the data in a data cache, thereby obtaining a cache time sequence signal; filtering the cached time sequence signal, and extracting a basic feature sequence; constructing an RC network model based on the basic feature sequence, and converting a fractional order operator into an equivalent integer order model; performing parameter estimation on the equivalent integer order model to generate a thermal prediction model; taking the thermal prediction model and the basic feature sequence as joint input and output power loss features; inputting the power loss characteristics into a quantile regression forest model to form a heat prediction result; comparing the heat prediction result with a heat threshold value and a temperature rise threshold value, and outputting a control trigger signal; and calling parameters in a control strategy library according to the control trigger signal to generate a control strategy. According to the invention, vehicle-mounted power supply short-circuit heat prediction is realized.
Owner:CHONGQING JIUZHOU LONGLING TECH CO LTD

Data transfer processing method and device, storage medium and electronic equipment

The embodiment of the invention discloses a data transfer processing method and device, a storage medium and electronic equipment, and the method comprises the steps: determining a target data buffering demand in a planning period, obtaining initial transmission limit data associated with a plurality of data source nodes, a transaction data transfer rule and data transfer flow information, based on the target data buffer demand, the data transfer pipeline information, the initial transmission limit data and a transaction data transfer rule, executing data transfer task analysis on the transaction transfer request by adopting a target multi-mode large model to obtain a plurality of candidate data transfer execution packets meeting the target data buffer demand, and performing target scheme generation processing on the candidate data transfer execution packet according to a preset data transfer scheme constraint target to generate a target data transfer scheduling scheme for distributing each candidate data packet to different time points in a planning period, so that the intelligent degree of data transfer processing can be improved.
Owner:CHONGQING ANT CONSUMER FINANCE CO LTD

Signal acquisition and transmission method and device based on main control unit, equipment and medium

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.
Owner:HEFEI ZHONGKE CAIXIANG TECH CO LTD

Satellite-borne file self-adaptive storage and scheduling method based on FPGA (Field Programmable Gate Array)

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.
Owner:SHANGHAI JINGJI COMM TECH CO LTD

Bridge health monitoring system

The invention discloses a bridge health monitoring system which comprises a sensing layer, a transmission layer, a processing layer and an application layer which are in communication connection in sequence. The sensing layer synchronously collects structural mechanics, environmental influence and traffic load data through multi-source heterogeneous sensing nodes, and the sensing nodes adopt a solar energy and vibration energy double-source energy supply and low-power-consumption mechanism; the transmission layer adopts a'wireless private network + edge gateway 'mixed mode, and has data caching and breakpoint resuming functions; the processing layer analyzes data through a deep learning fusion algorithm based on an attention mechanism, and realizes dynamic early warning threshold adaptive adjustment in combination with a Bayesian reasoning model; and the application layer provides a visual interface, graded early warning and targeted maintenance decision suggestions. The system achieves the precise monitoring of the full life cycle of the bridge, improves the evaluation accuracy and system stability, reduces the operation and maintenance cost, provides scientific support for the safe operation and maintenance of the bridge, is suitable for the health monitoring scenes of various bridge types, and greatly improves the accuracy of the evaluation of the health state of the bridge.
Owner:LONGYANG HIGHWAY BRANCH

Hand-eye cooperative robot control system and method based on dynamic operator arrangement

The invention discloses a hand-eye cooperative robot control system and method based on dynamic operator arrangement, an upper computer planning layer operates a master control computer to periodically trigger task scheduling, a joint controller of a lower computer execution layer receives an instruction through a redundant bus to perform servo control, hand-eye camera data triggers a visual assembly line through an interrupt event, and a visual assembly line is controlled through a control interface. According to the method, pressure is calculated through visual processing, motion planning and joint control in a load sharing mode, a double-buffering mechanism is adopted to enable current frame visual processing and previous frame motion control to be executed in an overlapping mode, real-time scheduling and parallel computing of tasks are completed, hot data are cached in a memory database, cold data are archived to an HDFS and migrated through an LRU strategy, and the real-time scheduling and parallel computing of the tasks are completed. Data type conversion is automatically derived and performed based on a feature type registry, and conditional branch execution is triggered according to real-time sensor data. According to the control system, cross-hardware plug and play, algorithm flow configurability and data flow real-time sharing are achieved, and the requirement for improving the efficiency of complex operation tasks is met.
Owner:SUPER HIGH VOLTAGE BRANCH OF STATE GRID JIANGXI ELECTRIC POWER CO LTD

Uplink signal control

A base station may cancel or delay (e.g., pre-empt) a transmission from a wireless device by sending a pre-emption indication to the wireless device. Based on receiving the pre-emption indication, the wireless device may cancel the transmission, store an indication associated with the cancelled transmission, and / or store the cancelled transmission in a data buffer. The base station may request transmission of the data unit (e.g., at a later time) by transmitting another indication.
Owner:COMCAST CABLE COMM LLC

Multi-channel ultrasonic transducer phased array driving method based on DMA

The invention discloses a multichannel ultrasonic transducer phased array driving method based on direct memory access. The method comprises a waveform data buffer length determination step, a data path construction step, a phase parameter calculation step, a waveform data synthesis step and a DMA driving step. An independent DMA channel is configured for each GPIO port or each group of GPIO ports corresponding to the transducer array by utilizing the DMA characteristic of a universal microcontroller, and buffer data is transmitted to the output data registers of the GPIO ports automatically and periodically by DMA hardware, so that multi-channel driving signals with accurate frequency and controllable phases are generated in parallel under the condition that CPU (Central Processing Unit) intervention is not needed. According to the invention, high-precision time sequence control comparable with an FPGA (Field Programmable Gate Array) scheme is realized with extremely low hardware cost and CPU (Central Processing Unit) resource occupation, the problem of time sequence jitter of an existing MCU (Microprogrammed Control Unit) scheme is solved, and the method has high stability, high efficiency and excellent expandability.
Owner:SOUTHEAST UNIV

Distributed link tracing data processing method, device, and storage medium

Embodiments of the present disclosure relate to a distributed link tracing data processing method, a device, and a storage medium. The method includes: receiving a service request, processing the service request, caching first tracing data generated in a local cache, constructing a sub-request of the service request, delivering the sub-request to a next-hop service node, receiving second tracing data generated by the next-hop service node through processing the sub-request of the service request and fed back through a response message, caching the second tracing data in the local cache, processing the response message, caching third tracing data generated in the local cache, obtaining the first tracing data, the second tracing data, and the third tracing data, splicing the above tracing data to obtain full link tracing data generated by processing the service request, and storing the full link tracing data in a target storage device.
Owner:BEIJING VOLCANO ENGINE TECH CO LTD

Loading storage circuit and graphics processor

The invention provides a loading storage circuit and a graphics processor, and relates to the technical field of graphics processing. The loading storage circuit comprises an instruction scheduling module, an address generation module and a data service module, and is provided with a buffer area module which comprises an operand buffer area and an effective data buffer area and is used for caching information required by address calculation and data access; the instruction scheduling module is used for collecting a data access instruction and outputting instruction information; the address generation module calculates a target access address according to the instruction information and the operand; and the data service module executes corresponding data loading or storage operation on the target cache unit. According to the scheme, the operands and the valid data are pre-cached, so that overflow and stagnation caused by inconsistent processing rhythms among modules can be avoided, and the parallel processing capability of an assembly line is improved; through the independent address calculation and data access process, the stability of the access time sequence and the data processing efficiency can be improved.
Owner:MOORE THREADS TECH CO LTD

Variable-frequency energy-saving automatic control system of centrifugal machine

The invention relates to the technical field of centrifugal machines, in particular to a variable-frequency energy-saving automatic control system of a centrifugal machine, which comprises a centrifugal module used for separating materials according to the centrifugal machine to obtain a target product and comprising a driving motor used for providing centrifugal power; the data processing module comprises a data acquisition unit used for acquiring operation data of the centrifugal machine; the frequency conversion self-control module comprises a main MCU (Microprogrammed Control Unit) for outputting an adjusting strategy of the centrifugal machine according to a neural network model; the counting adjusting module is used for determining the counting frequency of the timer in the slave MCU according to the start-stop response duration of the driving motor; the feed-forward adjusting module is used for determining the feed-forward lead of the auxiliary motor according to the phase deviation value of the PWM signal; and the cache adjustment module is used for determining an operation data cache trigger threshold according to the slave MCU instruction response deviation duration. The real-time performance of frequency conversion self-control of the centrifugal machine is improved.
Owner:广州广重分离机械有限公司

Uplink Signal Control

A base station may cancel or delay (e.g., pre-empt) a transmission from a wireless device by sending a pre-emption indication to the wireless device. Based on receiving the pre-emption indication, the wireless device may cancel the transmission, store an indication associated with the cancelled transmission, and / or store the cancelled transmission in a data buffer. The base station may request transmission of the data unit (e.g., at a later time) by transmitting another indication.
Owner:COMCAST CABLE COMM LLC

Vehicle-mounted passive optical network unit system and communication method thereof

The invention relates to a vehicle-mounted passive optical network unit system and a communication method thereof. The vehicle-mounted passive optical network unit system comprises an optical line terminal; the plurality of optical network units receive downlink data; analyzing the downlink data to obtain an udp data packet; performing fcs verification on the instruction udp data packet; if the verification is successful, analyzing the instruction udp data packet to obtain instruction information; extracting the instruction information marked with the head and the tail, generating control information based on the instruction information marked with the head and the tail, issuing the control information to the vehicle-mounted terminal, and reading uplink data acquired by the vehicle-mounted terminal from the vehicle-mounted terminal; forming the uplink data into udp frames, and caching the processed uplink data; extracting the cached uplink data and transmitting the uplink data to the first interface; an optical splitter; a vehicle-mounted processor; and a vehicle-mounted terminal. The system has the advantages of low energy consumption, high broadband, low time delay, electromagnetic interference prevention, simple wiring, rapidness, stability, reliability and the like.
Owner:ANHUI GONGXIN PHOTONICS TECH CO LTD

Hanger CAN signal processing method, device, equipment and upper system

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.
Owner:SANY MARINE HEAVY INDUSTRY CO LTD

Discrete data collection method and system based on hierarchical aggregation

The invention relates to the technical field of data processing, and particularly discloses a discrete data collection method and system based on hierarchical aggregation, by constructing a hierarchical aggregation architecture of computing nodes, intermediate aggregation nodes and a central node, the computing nodes cache discrete data to a local pre-write log queue, and the central node stores the discrete data in the local pre-write log queue; when a time window or a data volume threshold value is met, the data are subjected to batch processing compression and then sent to the corresponding intermediate aggregation nodes, the intermediate aggregation nodes decompress the data, aggregate and deduplicate the data and send the aggregated data to the center node through a pre-write log and a check point persistence state, and the center node can achieve non-repeated write-in of the aggregated data; and a back pressure signal can be sent to adjust the transmission rhythm of the intermediate aggregation node, and data collection is ensured to meet accurate primary semantics through cooperation of a transaction ID, a check point and an idempotent interface. The method can eliminate the I / O bottleneck of the central node, improves the collection efficiency and data reliability, enhances the fault-tolerant capability, and is suitable for discrete data collection of a large-scale distributed system.
Owner:上海秉匠信息科技有限公司

Method for automatically identifying industrial equipment based on configurable protocol of EMS

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.
Owner:YIN NEW POWER TECH (SHANDONG) CO LTD

Heterogeneous nerve processing system of generative AI model

A heterogeneous neural processing system includes a first processor configured to perform encoding and decoding operations of an autoencoder, and a second processor configured to perform neural network operations of a particular task, the operations having iterative processing. The processors perform compute tasks through synchronous data exchange to implement a generative AI model. The first processor processes a feature map divided into data rows, caches the data into active memory using row-based depth-first scheduling, and selects deeper operations in the network hierarchy when processing branch inputs, outputs, and residual connections. And H reuses boundary pixels between the cache storage space segments, so that convolution and element-level operation can be executed simultaneously. A neural network adjusts the device analysis model to identify layer dependencies, applies search space constraints, performs an iterative search to generate a fusion plan, and selects an optimal plan based on external memory access and execution delays.
Owner:MEDIATEK INC

Data caching method and device based on data access request, terminal equipment and storage medium

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.
Owner:ELECTRIC POWER RES INST OF GUANGDONG POWER GRID CO LTD

Multiplexing memory module

Memory devices on a memory module may include two (or more) interfaces that access non-overlapping sets of memory arrays (i.e., two pseudo-channels). The data bus directionality of each of the two pseudo-channels may be specified or required to always be in the same direction (i.e., both read, or both write). When the data bus directionalities are tied in this manner, the data buffer devices of the module may interleave / deinterleave (i.e., time-multiplex) data for communication with a host between the two pseudo-channel data busses. The data bus directionality of each of the two pseudo-channels may be independent of the directionality of the other pseudo-channel (i.e., either can read or write without regard to the data bus directionality of the other). When the data bus directionalities are independent in this manner, the data buffer devices may interleave / deinterleave data for communication with a host within each of the two pseudo-channel data busses.
Owner:RAMBUS INC

Integrated edge box with multiprotocol bidirectional conversion and intelligent reasoning functions

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.
Owner:YANGTZE DEITA GRADUATE SCHOOI OF BEIJING INST OF TECH (JIAXING) +1

Frame extraction method and system for streaming media monitoring video

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.
Owner:FUJIAN FUNO MOBILE COMM TECH CO LTD