107 results about "Datacasting" patented technology

The invention relates to the technical field of GNSS (Global Navigation Satellite System) navigation and positioning, in particular to a GNSS real-time precise single-point positioning ambiguity fixing method for a complex environment. The method comprises the steps of obtaining and processing data, obtaining a precision satellite orbit and a precision satellite clock error from original observation data, broadcast ephemeris and an SSR correction number which are originally obtained in sequence, obtaining original frequency point non-difference floating point ambiguity, obtaining fixed integer inter-satellite single-difference wide-lane ambiguity, and obtaining floating point inter-satellite single-difference narrow-lane ambiguity. And finally, selecting the complete set ambiguity according to the precision index of the floating point narrow lane ambiguity, and carrying out iteration to obtain an ambiguity subset meeting the optimal aperture check rule. Through the method, the ambiguity fixing reliability can be further improved, and the convergence time is shortened.

The invention belongs to the technical field of satellite positioning, and discloses an unmanned aerial vehicle positioning cruise method and system based on satellite-based enhancement, and the method comprises the steps: setting an unmanned aerial vehicle cruise region range, a high-coverage cruise route and flight time; and checking software and hardware equipment of the unmanned aerial vehicle, taking off from a safe area, and starting automatic cruise. Observation data, broadcast ephemeris and Beidou B2b and Galileo HAS products are obtained through an unmanned aerial vehicle receiver. Carrying out decoding and correction number matching on the B2b and the HAS messages; correcting the satellite orbit, the clock error and the code and phase deviation according to the correction number provided by the B2b and the HAS; performing gross error elimination, clock jump repair and cycle slip detection on the data; and performing parameter estimation by using Kalman filtering to obtain high-precision position coordinates. If an emergency occurs, an operator can send a return instruction to the unmanned aerial vehicle through a Beidou short message. And after the cruise task is finished or a return instruction is received, the unmanned aerial vehicle completes safe landing at the planned return point.

The invention provides a Cholesky decomposition heterogeneous parallel optimization method and system based on an SW architecture, and relates to the technical field of high-performance computing. The method comprises the following steps: performing sub-block division on a symmetric positive definite matrix based on a distributed parallel distribution scheme, and performing iteration to complete matrix decomposition; each sub-block is distributed to different processes through an MPI programming model, data exchange is carried out between the processes through asynchronous communication, and coarse-grained task-level parallel acceleration is carried out; performing two-stage parallel acceleration on four operations in Cholesky decomposition by utilizing the acceleration parallel characteristic of a master core and a slave core of the SW architecture; wherein for GEMM and SYRK operations, column vectors of a matrix are mapped to a slave core array, and columns are divided according to the number of slave cores; the calculation process is optimized through a double-buffering mechanism, vectorization operation and a loop expansion technology, and the parallel efficiency is improved; and for the TRSM operation, the TRSM operation is decomposed into a plurality of TRSV operations, the TRSV operations are allocated to the slave cores for parallel execution, and a circular reading and data broadcasting mode is adopted to reduce data dependence and realize efficient parallel calculation.

The embodiment of the invention provides a data processing method and device, electronic equipment and a computer program product, and relates to the technical field of big data. The method comprises the steps that to-be-processed stream data is acquired, a service database table corresponding to the to-be-processed stream data is determined, and the service database table is used for generating an association dimension table; subscribing the incremental data broadcast message according to the data mapping information between the service database table and the message queue theme; in response to the received incremental data broadcast message, determining service database table incremental data corresponding to the service database table, and synchronizing the service database table incremental data to a local cache of the dimension table association logic; and executing the dimension table association task based on the local cache of the dimension table association logic to obtain a real-time association dimension table. According to the method and the device, dimension table association is carried out through data broadcasting and local cache, millisecond-level updating of data can be realized on the premise of ensuring task performance, the purpose of real-time data updating of services is achieved, and stability and consistency of dimension table data are ensured.

The invention provides a troposphere delay correction method and system, electronic equipment and a storage medium, and the method comprises the steps: extracting troposphere delay of a reference station through a non-difference combination observation value method according to the obtained real-time reference station observation data, broadcast ephemeris, ultra-fast orbit and clock correction, carrying out the adjustment of observation values of a plurality of satellites, and carrying out the adjustment of the observation values of a plurality of satellites; the zenith troposphere delay of the base station is obtained; the zenith troposphere level of the base station after normalization processing is interpolated to the position of the moving station through an inverse distance weighted interpolation method, zenith troposphere delay of the moving station is obtained according to a pre-constructed elevation normalization model, and the elevation normalization model is constructed based on ERA5 horizontal atmospheric layer meteorological data. According to the method, the adaptability of the model to complex terrains can be improved, so that the model precision is improved, the precision single-point positioning convergence time of the moving station is effectively shortened, and the precision single-point positioning precision is improved.

The invention relates to a satellite laser attitude data broadcasting method based on a multi-star sensor, the multi-star sensor comprises a platform cabin star sensor and a laser self-star sensor, and the platform cabin star sensor and the laser self-star sensor are arranged on a satellite side plate. The method comprises the following steps: judging the validity of a platform cabin star sensor and a laser star sensor, and determining the source of laser attitude data to be broadcasted; calculating a time difference; taking the attitude quaternion measured by a plurality of star sensors as a quaternion initial value, combining the time difference and the satellite angular velocity, and performing time delay correction by using a time delay integral correction algorithm to obtain an attitude quaternion after correcting the attitude deviation; and broadcasting the attitude quaternion after correcting the attitude deviation. According to the invention, the star sensor data of the laser is introduced and is combined with the data of other star sensors for comprehensive processing, so that the precision of attitude measurement is remarkably improved.

The invention belongs to the technical field of path planning, and discloses a path planning method and system based on roadside collaboration, and the method comprises the steps: coding the position of equipment in a planning region, recording the path information corresponding to the equipment according to a coding result, and generating a path information matrix based on the path information and a real-time updating mechanism; connecting the path information matrix to a data broadcast to generate a real-time path plan, and designing a path resource allocation scheme according to an equipment planning demand and a weight mechanism; and after receiving the path resource allocation scheme, the equipment implements return verification processing, executes a planning scheme according to a processing result, and monitors path information in a planning area in real time in the execution process to realize real-time update of allocation. According to the method, the path conflict is effectively avoided, and the efficient operation of the traffic flow is ensured.

The invention relates to the technical field of vehicle control, in particular to a motorcade collaborative automatic driving method and system based on distributed consensus decision. The invention provides a motorcade collaborative automatic driving method based on a distributed consensus decision, and the method comprises the steps: carrying out the dynamic networking and data broadcasting, enabling vehicles in a motorcade to automatically discover and carry out the networking through a V2V communication module, and forming a logic cluster; triggering a cooperative task and generating a proposal, and when a local system of any vehicle in the cluster detects a scene needing a motorcade cooperative response, the vehicle serves as a proposal node and generates a cooperative action proposal based on the vehicle and received shared information; and based on BFT distributed consensus decision, vehicles in the cluster independently verify security and rationality to achieve a consensus process after receiving a proposal. After all the vehicles reach the consensus, a time synchronization mechanism is kept, and it is ensured that all the vehicles execute the instructions on the same standard. The technical problem that in the prior art, an RSU-based motorcade collaborative automatic driving method is needed is solved.

The invention discloses a real-time quality detection method for Internet of Things big data of a new energy power grid. The method comprises the following steps: firstly, collecting equipment time sequence data in a new energy power grid by a lower-layer Internet of Things platform, and uniformly pushing the equipment time sequence data to a Kafka platform; a user needs to deliver quality inspection standard data to the Flink to be loaded in a broadcast stream mode; meanwhile, the system can realize automatic synchronization after change of measuring point grouping, detection rules and parameter thresholds by means of the characteristics of Flink broadcast streams according to metadata reloaded in a period agreed by a user; the method comprises the following steps: firstly, using an asynchronous IO to consume kafka, then indicating Flink to use asynchronous IO to consume kafka, using configuration in a quality inspection standard data broadcast stream, then carrying out data detection, and finally dropping the detected data into a distributed time sequence database cluster by virtue of Flink Sink. The problems that an existing offline scheme is poor in timeliness, insufficient in adaptability and difficult to cope with super-large-scale concurrency are solved.

The invention provides a broadcast communication method, a broadcast communication system and a base station applied to the broadcast communication system, the broadcast communication system comprises the base station and a plurality of terminal devices in broadcast communication with the base station, and the method comprises the following steps: acquiring a current frame number, generating a synchronization signal according to the current frame number, and broadcasting the synchronization signal to each terminal device, performing frame number synchronization on each terminal device and the base station based on the synchronization signal; generating an encryption key according to the current frame number and a preset scheduling period length; and according to the encryption key, encrypting the to-be-broadcasted data, generating encrypted data, and broadcasting the encrypted data to each terminal device, so that the security of broadcast communication is improved, and the bandwidth occupied by the broadcast communication is reduced.

The invention provides a troposphere anisotropy-considered real-time PPP positioning method, and relates to the technical field of satellite navigation and positioning, and the method comprises the following steps: S01, receiving real-time GNSS observation data, broadcast ephemeris data and precision correction data, carrying out detection and restoration of clock slip and cycle slip, data quality control and preprocessing of antenna phase correlation errors on the data to obtain a preprocessed data set; s02, calculating the solar altitude after atmospheric refraction correction according to each preprocessed data set and the geographic position and observation time of the observation station corresponding to each data set; and S03, based on the solar altitude and the satellite altitude. According to the method, solar altitude parameters are introduced, the troposphere anisotropy effect caused by solar radiation is effectively modeled, and the precision and convergence speed of real-time precise single-point positioning are remarkably improved.

A forwarding method and system for data broadcast reduction in a Vehicle Named Data Networking (VNDN) is proposed. The method includes (a) setting name centrality (NameCent) count data with respect to an interest packet received by a node of the VNDN; (b) measuring, by a Received Signal Strength Indicator (RSSI), a power level of signal received from an access point (AP) or any other vehicle in wireless communication; (c) calculating a weight of the interest packet for a data forwarder in a current node or a previous node based on the name centrality (NameCent) count data and signal strength measured by the Received Signal Strength Indicator (RSSI); and (d) determining a potential forwarder of a data packet by comparison of variables of the weight calculated in step (c).

The invention discloses a hybrid fragmentation two-stage consensus protocol implementation method and system, and the method comprises the following steps: S1, in a sub-fragmentation, a sub-block chain node generates data needing to be recorded on a sub-block chain, and broadcasts a transaction data packet; s2, in the sub-fragments, sub-block chain nodes form a consensus result; s3, in the sub-fragments, the sub-block chain accounting node generates a block, stores the block in a local sub-block chain, and broadcasts a block data packet; 4, in the sub-fragments, the sub-blockchain node verifies the block, and the block passing the verification is stored in the local sub-blockchain; s5, in the main fragment, submitting sub-fragment block hash head data and broadcasting a transaction data packet by a sub-fragment block chain accounting node; s6, in the main fragment, forming a consensus result by the main block chain node; s7, in the main fragment, the main block chain accounting node generates a block, stores the block in a local main block chain, and broadcasts a block data packet; and S8, in the main fragment, the main block chain node verifies the block, and the block passing the verification is stored in the local main block chain.

The present invention proposes a high-order FIR digital filter based on reduced calculation. The filter taps are n single-bit binary random coefficients. During each sampling period, the filter inputs a sampling point and calculates the product of the n sampling points and the previous n-1 sampling points, which are composed of n sampling points and n binary random coefficients. The multiplication result of the sampling point and the binary random coefficient is specified: if the coefficient is 1, the multiplication result is the value of the original sampling point; otherwise, the multiplication result is the inverse of the sampling point. Based on this reduced calculation, the present invention designs a high-order FIR digital filter based on a data broadcast structure. The sampling point and the binary random coefficient are combined into n items. The partial sum of the combined items is a finite number of items. A lookup table with a small depth is used to compress the large number of repeated additions required to calculate the partial sum at each addition node. Each addition node of the filter obtains the corresponding partial sum by matching the address of each table entry in the lookup table, which greatly reduces the use of adders.

The invention discloses a clipboard method and system for realizing cross-platform synchronous sharing delay loading, and the method comprises the steps: dynamically switching a stateless role, a source role and a target role through a preset module, and avoiding a multi-device conflict in combination with a timestamp mechanism; clipboard data are monitored and acquired based on an operating system underlying protocol, and dependence of a third party is avoided; cross-platform compatibility is realized through many-to-many mapping of Linux and Windows data formats; a delay loading strategy is adopted, real data are transmitted only when application triggers pasting, and bandwidth consumption is reduced; and data broadcast and request response between the devices are realized through the wide area network module based on a custom protocol. According to the method, synchronous sharing of the two-way clipboard among Windows, Kylin, United Response, Swan and other Linux systems is supported, the convenience, compatibility and performance of cross-platform collaborative office are improved, and the use of the clipboard by the original application is not influenced.

The invention discloses a factor graph optimization-based integer ambiguity fixing method and a storage device. According to the method, observation factors are obtained based on different observation models according to GNSS observation data and broadcast ephemeris data which can be obtained and observation data of other selected sensors; constructing an ambiguity single-node graph optimization model based on the selected GNSS carrier phase observation value processing form, and adding an observation factor; creating a multivariate ambiguity penalty factor based on the ambiguity function model, determining the weight of the ambiguity penalty factor by the ambiguity covariance matrix, and adding the weight of the ambiguity penalty factor into the ambiguity single-node graph optimization model; and constructing a graph optimization solver, and carrying out optimization problem solving on the to-be-estimated parameters through iterative optimization and dynamic weight determination, so that the factor graph optimization-based integer ambiguity fixing method can be realized. According to the method, the positioning precision and stability are improved, the calculation process is simplified, and the calculation efficiency is improved.

The invention relates to an insurance service data broadcasting method and device, equipment and a storage medium. According to the main technical scheme, the method comprises the following steps: acquiring insurance service data, and constructing a data broadcast task according to the insurance service data to obtain insurance task data; periodically scanning the insurance task data, and constructing a to-be-pushed task according to the insurance task data to obtain to-be-pushed data; reading preset subscription system information, and matching and binding the to-be-pushed data and the preset subscription system information to obtain to-be-broadcasted data; and broadcasting the to-be-broadcasted data to a corresponding subscription system in the preset subscription system information according to the preset timing task. According to the application, the data broadcasting task and the to-be-pushed task are constructed through the preset construction method, and then the to-be-broadcasted data are obtained and broadcast of the to-be-broadcasted data is realized, so that the problem of relatively high system maintenance cost caused by a large number of template codes is eliminated, and the effect of improving the working efficiency of workers is achieved.

The invention discloses a data processing method and system, electronic equipment and a readable storage medium, the method is applied to acquisition equipment, and the method comprises the following steps: performing binary conversion on acquired original data to obtain original binary data; combining the original binary data, and checking each group of combined data to obtain a plurality of first-level check codes; and obtaining target data according to the original binary data and the plurality of primary check codes, sending the target data to the server through the gateway equipment, determining error data in effective binary data in the target data by the server according to the received target data, and correcting the error data. According to the scheme disclosed by the invention, data check and error correction are realized, so that the number of retransmission times caused by data errors is remarkably reduced, the probability of occurrence of a data broadcast storm is reduced, and the operation pressure and downtime risk of a server are reduced.

The invention relates to the field of animation control, and discloses an animation special effect playing control method and device, equipment and medium, and the method comprises the steps: responding to an animation playing notification event, and displaying an animation special effect on a graphical user interface where a live broadcasting room is located according to the multi-layer animation data of the animation special effect specified by the event; monitoring configuration operation of an associated user of the animation special effect, and determining that a target layer configured in the animation special effect and editing change data of the target layer form special effect playing control data; and broadcasting the special effect broadcast control data to the live broadcast room, and triggering to update the layer animation data of the target layer which is still displayed according to editing change data in the special effect broadcast control data so as to refresh the animation special effect. According to the method, the multi-layer animation special effect is allowed to be edited in real time and synchronously refreshed in the same live broadcast room, a complete file does not need to be issued again, and zero-delay personalized interaction is realized.

The invention relates to the technical field of satellite time service, in particular to an electric power communication clock verification method, system and device based on Beidou B2b and a medium. A main clock obtains local time according to time zone setting, receives Beidou signals and obtains observation data, broadcast ephemeris and Beidou signal correction information based on the received Beidou signals; extracting a satellite orbit and a clock error correction number based on the Beidou signal correction information, correcting a broadcast ephemeris based on the extracted clock error correction number, obtaining a precise satellite orbit and a clock error, and performing data preprocessing on observation data; constructing an observation equation based on the preprocessed observation data, the precise satellite orbit and the clock error, and obtaining the deviation between the local time of the master clock and the standard time through a parameter estimation method; and based on the obtained deviation between the local time of the master clock and the standard time, the master clock sends the time code to the power system equipment, and the power equipment performs time verification according to the time code, so that the time consistency and the operation stability of the power communication system are improved.

A reward management system 10 enabling a viewer to reward program participants of a digital broadcast television program, the system being configured such that, when a television receiver 2 receives and displays a digital broadcast television program, information for reward is included in the content of a data broadcast displayed by the television receiver 2. A reward management system 10 includes: a data broadcast creation server that creates data broadcast content including information for rewards; and a management server (1) that receives the data relating to the reward via the Internet connection and determines the number of points to be distributed to the program participant when the viewer performs the reward based on the information for the reward included in the content broadcasted by the data.

This disclosure relates to parallel inference methods, apparatuses, devices, and media for multiple LoRA large models, and pertains to the field of deep learning technology. By adding a dedicated process for the LoRA model, it achieves decoupling and separate management from the original large model process at the process level. At the system architecture level, it realizes isolation and parallel computing of the basic large model and multiple LoRA models in terms of computing and storage resources. Compared with traditional methods that deploy the large model and LoRA models on the same device, this disclosure can deploy more LoRA models and improve inference concurrency. Before each iteration of inference, the metadata data is synchronized within the LoRA process group, and the input data is controlled to be broadcast only within the large model process group, avoiding communication and storage redundancy caused by broadcasting input data to the LoRA process and optimizing preprocessing efficiency. By separating the LoRA process and the large model process for parallel operation, efficient separation and collaboration of inference are achieved.

Disclosed in the present invention are an asynchronous blockchain consensus method and system with decoupled data broadcast and consensus, an electronic device and a storage medium. The system comprises a plurality of nodes, wherein the nodes may be co-served by a plurality of mutually trusted physical or virtual devices. The method comprises: data broadcast and data sequential consensus are decoupled, wherein the nodes jointly maintain a plurality of broadcast protocol instances and a Byzantine consensus protocol; broadcast protocols are responsible for transmitting data at a certain node to other nodes, the Byzantine consensus protocol is responsible for reaching a consensus on results of the plurality of broadcast protocol instances; and in the nodes, the plurality of broadcast protocol instances can be maintained by a plurality of devices in an one-to-one correspondence mode, and execution results of the broadcast protocols are transmitted to devices responsible for executing the Byzantine consensus protocol in the nodes. The present invention can be implemented to improve the efficiency of a blockchain system, and additionally, to more conveniently improve system efficiency by increasing physical resources.

A TV-Internet Integration Box allows display of first data broadcast over a TV subscriber channel simultaneously together with second data broadcast over a digital data communications network has respective first and second inputs for receiving at a user premises the first data and the second data according to a user-profile associated with the second data. A combiner unit combines the first data and second data to form a combined video signal; and a video output coupled to the combiner unit conveys the combined video signal to a TV set in a user premises for displaying a first image corresponding to the first data and having superimposed thereon a second image corresponding to the second data. A user at the user premises may interact with the second image for redirecting to the digital data communications network and displaying a program broadcast thereby in at least a portion of the TV set.

The invention discloses a monitoring data processing method and system for a power distribution system, and relates to the technical field of data processing, and the method comprises the following steps: obtaining the broadcast data and monitoring state data of each node of a power distribution network, and carrying out the grouping of the broadcast data through employing a clustering algorithm, and obtaining a plurality of broadcast behavior groups; performing broadcast conflict density evaluation on the plurality of broadcast behavior groups, and identifying idle propagation windows; using a greedy algorithm to screen idle propagation windows of the plurality of broadcast behavior groups to obtain an optimal broadcast time period of each node; in the optimal broadcast time period, storing the monitoring state data of each node into a preset cache region and compressing the monitoring state data to obtain a compressed state data packet of each node; according to the method, the broadcast sequence of the compressed state data packets of each node is optimally sorted, and the broadcast task of the compressed state data packets is executed according to the optimal sorting, so that the problems of link congestion and redundant transmission caused by multi-node concurrent transmission in the broadcast process of the monitoring data of the power distribution system are solved.

Disclosed in the present invention are an asynchronous blockchain consensus method and system with decoupled data broadcast and consensus, an electronic device and a storage medium. The system comprises a plurality of nodes, wherein the nodes may be co-served by a plurality of mutually trusted physical or virtual devices. The method comprises: data broadcast and data sequential consensus are decoupled, wherein the nodes jointly maintain a plurality of broadcast protocol instances and a Byzantine consensus protocol; broadcast protocols are responsible for transmitting data at a certain node to other nodes, the Byzantine consensus protocol is responsible for reaching a consensus on results of the plurality of broadcast protocol instances; and in the nodes, the plurality of broadcast protocol instances can be maintained by a plurality of devices in an one-to-one correspondence mode, and execution results of the broadcast protocols are transmitted to devices responsible for executing the Byzantine consensus protocol in the nodes. The present invention can be implemented to improve the efficiency of a blockchain system, and additionally, to more conveniently improve system efficiency by increasing physical resources.

This application provides a method, apparatus, device, storage medium, and program product for broadcasting transaction data, relating to the field of blockchain technology. The method includes: acquiring target transaction data; packaging the target transaction data into blocks to generate a target block; determining an n-level intermediate node for the consensus nodes in the blockchain based on the participating nodes; further determining the transmission path of the target block based on the consensus nodes and the n-level intermediate nodes; and broadcasting the target block through the transmission path. This application, by setting an n-level intermediate node for the consensus nodes in the blockchain and determining the transmission path for the target block based on the n-level intermediate nodes corresponding to the consensus nodes, enables each participating node in the blockchain to receive and broadcast only a limited number of transaction data from participating nodes, thereby improving the broadcasting efficiency of the blockchain and reducing the risk of broadcast storms.

To provide a sound adjustment function using a GUI with unified operability and design. [Solution] The device includes an application processing unit that launches an application based on data broadcasting while broadcast content is being presented, and presents content of a media service by executing the application, and a switching processing unit that presents a means for switching to the presentation state of the broadcast content if it is not possible to switch to the presentation state of the broadcast content, and the switching processing unit determines whether it is possible to switch to the presentation state of the broadcast content based on the data broadcasting.

The present invention relates to the field of data processing technology, and discloses a cross-chain method based on a national secret algorithm, comprising the following steps: step 101, building a multi-party computing cross-chain group network; step 102, each participating node distributes its own identity information and homomorphic encryption information of a national secret private key to other nodes; step 103, performing multi-party computing on the nodes to obtain public public key information; step 104, establishing a cross-chain account; step 105, the current number of online nodes is m; step 106, when the synchronization node on the source blockchain listens to the data cross-chain request, the cross-chain data is broadcast to the cross-chain group network; step 107, the current m nodes respectively authenticate and sign the cross-chain data to generate a final cross-chain transaction; step 108, broadcasting the transaction to the target blockchain network; the cross-chain method of the present invention has no special requirements on the architecture of the blockchain, and can be compatible with data cross-chain between various heterogeneous chains.

The application discloses a data broadcast method, a service server, a terminal device and a storage medium. The method comprises the following steps: acquiring a plurality of service data of different service types to be broadcast, and determining a corresponding broadcast channel of each service data in a preset broadcast channel based on the service type of each service data in the plurality of service data; using a preset channel layer data protocol, performing channel coding on each service data based on the corresponding broadcast channel of each service data, to obtain a plurality of groups of single-channel data frames corresponding to the plurality of service data; using a preset link layer data protocol, performing link coding on the plurality of groups of single-channel data frames based on a preset channel priority of the corresponding broadcast channel of each service data, and determining the coded data as to-be-broadcast data; and performing data broadcast on the to-be-broadcast data through the preset broadcast channel. Through the technical scheme, the efficiency of data broadcast is improved.