55 results about "Datacasting" patented technology

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 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 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 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.

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.

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.

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.

The application provides a fusion data broadband coseismic velocity waveform real-time reconstruction method based on cascade filtering, which uses cascade filtering to fuse high-frequency GNSS original Doppler data, high-frequency GNSS carrier phase data and accelerometer data to realize broadband coseismic velocity waveform real-time reconstruction, and the realization process comprises the following steps: high-frequency GNSS / accelerometer co-located station real-time acquisition of high-frequency GNSS observation data, broadcast ephemeris and original acceleration data, and sending to a ground computing center; the ground computing center real-time calculation of high-frequency GNSS TDCP average velocity and high-frequency GNSS RD instantaneous velocity; the ground computing center zero offset correction of the real-time received original acceleration data to obtain zero offset correction acceleration data; and the ground computing center real-time reconstruction of the broadband coseismic velocity waveform of the high-frequency GNSS / accelerometer co-located station according to the high-frequency GNSS TDCP average velocity, the high-frequency GNSS RD instantaneous velocity and the zero offset correction acceleration data by using cascade filtering.

To provide a receiver and a reception method for confirming whether or not an application is appropriate before starting.SOLUTION: In a broadcast system, a reception device 2 determines whether or not it is compatible with activation of a registered general application specified by BroadcastMarkupLanguage (BML) content transmitted by data broadcasting, a reception unit 21 receives a broadcast wave via an antenna, an input unit 22 acquires an operation signal based on a user's operation and outputs the acquired operation signal to a main system unit 20, and the main system unit 20 has a function of controlling an operation of the reception device 2. The main system 20 separates a data signal from the broadcast signal input from the receiver 21, decodes an audio signal and a video signal indicating the audio forming the content, and outputs the decoded audio signal and video signal to the output unit 25.SELECTED DRAWING: Figure 3

The application relates to a Beidou / Galileo system fusion-based satellite-based precise timing method and system. Observation data, broadcast ephemeris data and correction numbers broadcast by a Beidou three-satellite system and a Galileo satellite system are respectively received by a receiver, two different systems are fused for timing, system clock differences between the two satellite systems are respectively taken as constants, white noises and random walks for construction of an estimation model, a PPP fusion model of the two satellite systems is constructed, each estimation model is brought into the fusion model for calculation, the estimation model corresponding to the best timing precision is taken as an optimal estimation model for correction of the system clock difference, other satellite data is corrected, receiver clock difference parameters are obtained, the parameters are used for clock taming, and satellite-based precise timing is completed. The method has higher timing precision and a wider application range.

The present disclosure provides a data transmission method, a broadcast engine, an electronic device and a storage medium. First, the intra-cluster broadcast engine acquires broadcast data and a broadcast mask in response to a broadcast request reported by the computing unit. Then, the intra-cluster broadcast engine performs intra-cluster broadcast processing in the current block processing cluster based on the broadcast data and the broadcast mask. Then, the intra-cluster broadcast engine forwards the broadcast data and the broadcast mask to the intra-cluster broadcast engine of other block processing clusters through the inter-cluster interconnection network, so as to trigger other intra-cluster broadcast engines to perform intra-cluster broadcast processing based on the broadcast data and the broadcast mask. The embodiment of the present disclosure can break through the data broadcast limitation of a single block processing cluster, realize efficient cross-block processing cluster data broadcast, and improve the data transmission efficiency.

The present invention relates to an e-commerce system and method using a networked retail store, comprising: a buyer terminal that accesses a retail store shopping mall of a data broadcasting service, searches for a product, selects and orders it, and enters a payment number to receive the ordered product; a retail store headquarters server having a product DB regarding various products that can be searched; a data broadcasting server that provides a product search and order screen to the buyer terminal by linking the product DB of the retail store headquarters server in real time when a retail store shopping mall menu is selected on a broadcast screen after the buyer terminal is connected via a set-top box by the buyer; a retail store terminal that is connected to the retail store headquarters server via a dedicated line and is networked on a regional basis; a transaction confirmation / authentication system that receives the buyer's payment number from the data broadcasting server, verifies it, and transmits the authenticated result to the data broadcasting server; and a financial institution server that receives financial information such as the buyer's payment number from the transaction confirmation / authentication system, processes the payment approval when a payment request signal is transmitted from the data broadcasting server, and transmits the payment result to the data broadcasting server. According to the present invention, since each retail store (mart, supermarket, discount store, convenience store, etc.) networked with a dedicated line in each region of the country can be utilized, rapid delivery is possible 24 hours a day, year-round, and returns and exchanges can be made quickly in the event of product defects.

This invention relates to a blockchain-based trusted collaborative control method and system for vehicle platoons, belonging to the field of intelligent connected transportation technology. The method includes steps such as vehicle state perception and data broadcasting, RSU node data verification and blockchain uploading, vehicle comprehensive trust value calculation and updating, predictive control compensation mechanism, abnormal behavior detection and malicious node isolation, and dynamic optimization and adjustment of the platoon structure. The system executes this method, ensuring data consistency and immutability through blockchain technology to enhance information security; utilizing trust value calculation and anomaly detection mechanisms to guarantee platoon security; and dynamically adjusting the platooning order based on priority scoring to improve collaborative control performance. This invention achieves high security, high real-time performance, and high robustness in collaborative vehicle platoon control under complex conditions, and has significant application value.

The application discloses a data scheduling method for a systolic array and belongs to the technical field of neural networks.The application comprises the following steps: step 1, distributing data A to be convolved / matrix-multiplied on m cores; step 2, broadcasting data B to the m cores, and the m cores each obtain the same b to perform calculation; step 3, when the distributed data A on each core is calculated with all the b, the result is written back to the main memory; and step 4, repeating steps 1-3 to perform calculation on the next part of the data A.The application can effectively improve the reuse times of on-chip data, reduce the bandwidth requirement, and effectively improve the performance of a hardware accelerator.

The present invention relates to the field of computers, and more specifically to a matrix data broadcast architecture. Systems, apparatuses, and methods are disclosed for efficiently executing multiple work units in a processor in parallel by reducing the number of memory accesses. A computing system includes a processor core having a parallel data architecture. The processor core executes a software application with matrix operations. The processor core supports broadcasting shared data to multiple compute units of the processor core. A compiler or other code assigns a thread group to a compute unit based on detecting shared data between compute units. The processor core generates a single access request instead of sending multiple read accesses to a memory subsystem to fetch the shared data. The single access request includes information identifying the multiple compute units to receive the shared data when broadcast by the processor core.

The invention relates to the field of many-core processors, and particularly provides a matrix multiplication calculation method and device for a many-core processor architecture, and the method comprises the following steps: S1, a calculation chip comprises a plurality of calculation cores, each calculation core is provided with an on-chip memory, and data transmission is carried out between the calculation cores through an on-chip network NOC; s2, carrying out matrix multiplication calculation and partitioning; s3, broadcasting weight data; and S4, multi-core parallel computing is carried out. Compared with the prior art, the method has the advantages that the load balancing on the calculation core can be realized through a flexible block design mode in combination with weight data broadcasting, and the method has relatively high innovation value and practical value.

The present application relates to a kind of mimicry security data exchange methods based on MQTT, the method utilizes the subscription / distribution capacity of MQTT proxy, constructs MQTT proxy redundancy cluster, broadcast one data to multiple MQTT proxy by distribution component, adopts the large number of decision mode of mimicry security, and the same theme data is merged;The method is based on the framework composition of MQTT proxy's mimicry security data exchange, and the composition structure includes publisher, distribution component, MQTT proxy cluster, decision component, subscriber, negative feedback component;The problem that multiple data transmission paths are increased for security but also bring difficult to merge in data transmission of mimicry security framework is solved, the present application is based on the original mimicry security defense architecture, utilizes the data distribution capacity of MQTT subscription, redundantly parallelly deploys multiple MQTT proxy, and effectively protects the intelligent fusion terminal application in the edge side of Internet.

The invention provides a Beidou router mobile operation positioning control method and device based on satellite-based enhancement, and the method comprises the steps: receiving RTK differential correction data and B2b-PPP broadcast correction data after a Beidou router is started, and collecting local original observation data; in the starting stage, when RTK differential correction data is unavailable, B2b-PPP broadcast correction data and local original observation data are adopted for positioning; when the RTK differential correction data is available, performing joint positioning by adopting the RTK differential correction data, the B2b-PPP broadcast correction data and the local original observation data; in the mobile operation stage, when the RTK differential correction data, the B2b-PPP broadcast correction data and the local original observation data are adopted for joint positioning, if the B2b-PPP broadcast correction data are interrupted, reconvergence is carried out on the B2b-PPP broadcast correction data based on the historical state parameters, and positioning is maintained.

The invention provides an efficient fault-tolerant broadcasting method for a dragonfly network. The method comprises the following steps: selecting any node as a root node r; dividing the construction process of the vertex independent spanning tree into two situations according to whether a first sub-node connected with a root node r in the spanning tree is an intra-group node or an out-group node; respectively generating n + h-1 vertex independent spanning trees which take r as a root and cover all vertexes in the network according to a preset construction process of the corresponding situation; and broadcasting data by using the spanning trees. According to the method, based on the topological characteristics of'in-group full interconnection and inter-group regular connection 'of the dragonfly network, unified VISTs construction logic is designed in combination with the types (in-group nodes and out-group nodes) of first-hop connection nodes of root nodes, a construction algorithm does not need to be designed for different values of the dragonfly network, and efficient broadcasting and safe distribution of data can be achieved.

Embodiments of the present application provide a block processing method based on a blockchain network and related equipment, the blockchain network includes a first blockchain node, the method is executed by the first blockchain node, and the method includes: obtaining a first block broadcast to the blockchain network, the first block includes K transactions; K is a positive integer; serially executing the K transactions in the first block within a preset execution duration, and generating first execution progress information of the first block, the first execution progress information is used to indicate: when a deadline of the preset execution duration is reached, a transaction that is executed in the first blockchain node is cut off; generating first round voting data P11 of the first block according to the first execution progress information; the first round voting data P11 includes the first execution progress information; and broadcasting the first round voting data P11 of the first block to the blockchain network. In this way, the probability and efficiency of reaching a consensus on the block in the blockchain network can be improved.