33 results about "Datacasting" patented technology

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 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.

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 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.

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.

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.

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 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 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.

The present application relates to the technical field of civil engineering construction safety monitoring, in particular to a kind of collapse monitoring safety early warning method and program product of comprehensive bridge under construction, comprising: generating dynamic safety threshold envelope adapted to current working condition;Calculate the residual of its measured value and the dynamic safety threshold envelope;When residual is over limit, extract the energy dissipation characteristics of measured data;If it is judged to be unstable, generate blocking instruction before bridge structure occurs physical fall and causes pipeline to reach tensile limit;The blocking instruction is used to trigger the action of the circuit breaking mechanism preinstalled at the two ends of the municipal pipe gallery, cut off the transmission line inside the pipe gallery, and synchronously trigger the traffic lock signal and emergency data broadcast;The present application overcomes the defect that traditional fixed threshold cannot adapt to the dramatic change of bridge stiffness under construction by establishing a time-varying mechanical model of structure, so as to ensure high sensitivity to the loss of structural stiffness while effectively shielding false alarms caused by normal construction vibration such as concrete pouring and hanging basket walking.

Embodiments of the present application provide a communication method and apparatus, which belong to the technical field of communications, and are used for reducing power consumption of terminal devices. In the method, a second device sends first information, and correspondingly, a first device receives the first information. The first information is used for determining a first resource. In the first resource, the first device does not need to receive or does not expect to receive, from the second device, at least one of the following: data, a broadcast channel, a signal used for measurement, a signal used for sensing, or a signal used for AI, or reception does not need to be performed or reception is not expected to be performed; and / or, the first device does not transmit or does not expect to transmit, to the second device, at least one of the following: data, a broadcast channel, a signal used for measurement, a signal used for sensing, or a signal used for AI, or transmission is not performed or transmission is not expected to be performed.

The invention provides a data transmission method, a broadcast engine, electronic equipment and a storage medium, and the method comprises the steps: enabling an intra-cluster broadcast engine to respond to a broadcast request reported by a calculation unit, and obtaining broadcast data and a broadcast mask; next, an intra-cluster broadcast engine performs intra-cluster broadcast processing within the current block processing cluster based on the broadcast data and the broadcast mask; then, an intra-cluster broadcast engine forwards the broadcast data and the broadcast mask to intra-cluster broadcast engines of other block processing clusters through the inter-cluster interconnection network to trigger other intra-cluster broadcast engines to perform intra-cluster broadcast processing based on the broadcast data and the broadcast mask, according to the embodiment of the invention, the data broadcasting limitation of a single block processing cluster can be broken through, the efficient data broadcasting of the cross-block processing cluster is realized, and the data transmission efficiency is improved.

This application provides a data broadcasting method, apparatus, computer device, and storage medium. The method includes acquiring node information of multiple nodes in a current network; constructing a network topology graph corresponding to the current network based on the node information; wherein the network topology graph is used to represent the data broadcasting relationship between the multiple nodes; determining an initial scheduling strategy with the shortest latency corresponding to the current network based on the network topology graph; and iteratively optimizing the initial scheduling strategy based on a Monte Carlo search tree algorithm, a determined power gradient search model, and a power gradient search space to obtain a target scheduling strategy; wherein the target scheduling strategy includes the transmission power used by the nodes in the matched time slots; and controlling the multiple nodes to broadcast data according to the target scheduling strategy. By utilizing the target scheduling strategy for data broadcasting in this application, the maximum throughput can be achieved while minimizing latency and energy consumption.

This invention discloses a method and storage device for fixing integer ambiguity based on factor graph optimization. The method derives observation factors based on different observation models using available GNSS observation data, broadcast ephemeris data, and observation data from selected other sensors. Based on the processing form of the selected GNSS carrier phase observations, a single-node graph optimization model for ambiguity is constructed, incorporating the observation factors. A multivariate ambiguity penalty factor is created based on the ambiguity function model, and its weight is determined by the ambiguity covariance matrix and added to the single-node graph optimization model. A graph optimization solver is constructed, and the optimization problem of the parameters to be estimated is solved through iterative optimization and dynamic weighting, thus realizing the method for fixing integer ambiguity based on factor graph optimization. This invention improves positioning accuracy and stability while simplifying the calculation process and increasing computational efficiency.

The present invention relates to an e-commerce method using a networked retail store. When a retail store shopping mall menu provided on the data broadcast screen is selected by the buyer after the buyer terminal is connected to a data broadcast server, the product DB of the retail store headquarters server is linked in real time under the control of the data broadcast server, and a product search menu screen is provided on the data broadcast screen of the buyer terminal. When a product is searched and selected on the product search menu screen, the retail store list DB of the retail store headquarters server is linked, and a list of retail stores having the selected product in stock is provided on the broadcast screen. When a retail store is selected by the buyer from the retail store list, the retail store map information DB of the retail store headquarters server is linked, and a map information screen of the selected retail store is provided on the broadcast screen. When the buyer orders a product and pays for the product to receive delivery from the selected retail store, the financial institution server approves the payment, and the approval details are transmitted to the data broadcast server. Upon receiving the payment approval details from the data broadcast server, the retail store headquarters server transmits the product order and payment details to the retail store terminal selected by the buyer, and the retail store terminal After receipt, the ordered product is delivered to the buyer's current address within a predetermined time. According to the present invention, the buyer can purchase the product under optimal conditions by directly comparing prices, estimated delivery times, and delivery methods for each retail store, and can further enhance the buyer's convenience by utilizing the nearest retail store through the location information of each retail store.

The invention relates to the technical field of distributed data storage and processing, and discloses a grid broadcast memory distribution system and method based on LBS, and the system comprises a grid routing management module, a business data broadcast module, a memory adaptive regulation and control module, a red-black tree local storage module, and an RPC query service module. Establishing logic mapping between geographic coordinates and a physical server through a grid routing management module; the service data broadcasting module analyzes longitude and latitude attributes of the changed data and executes directional distribution; the memory self-adaptive regulation and control module dynamically generates a full-amount memory or split storage strategy according to the memory occupancy rate of the JVM heap; a red-black tree local storage module responds to the strategy, cold attributes are serialized and placed in a disk in a split mode, and hot attributes and indexes are only reserved in a memory; and the RPC query service module returns complete data through cross-medium transparent assembly. According to the method, accurate routing based on the position and cold and hot separation of the object attribute level are achieved.

The invention provides a data broadcasting method and device and wireless communication equipment, and the method comprises the following steps: determining neighbor node information of a first node, the neighbor node information comprises a neighbor node set, the first node comprises at least two neighbor nodes, and the neighbor node set comprises the identification information of each neighbor node; writing indication information in the first data packet according to the neighbor node set to obtain a second data packet, the indication information being used for indicating the target node to reply an ACK message after receiving the second data packet; and the second data packet is broadcasted, an ACK message replied by a target node is received, and the target node belongs to one node in the neighbor node set. The data broadcasting method provided by the invention can be applied to a self-organizing communication network, one node in the neighbor node set is indicated to reply the ACK message after receiving the data packet, and the occupation of the ACK message on network resources is reduced while the data transmission reliability is improved.

The embodiment of the invention provides a communication method and device, belongs to the technical field of communication, and is used for reducing the power consumption of terminal equipment. In the method, a second device sends first information, correspondingly, a first device receives the first information, and the first information is used for determining a first resource; within the first resource: the first device does not need to receive or does not expect to receive at least one of the following from the second device: data, a broadcast channel, a signal for measurement, a signal for perception, or a signal for AI, or does not need to receive or does not expect to receive; and / or the first device does not send to the second device or does not expect to send to the second device at least one of data, a broadcast channel, a signal for measurement, a signal for perception or a signal for AI, or does not send or does not expect to send.

The invention relates to the technical field of civil engineering construction safety monitoring, in particular to a safety early warning method for collapse monitoring of a comprehensive bridge under construction and a related product, and the method comprises the steps: generating a dynamic safety threshold envelope line adaptive to a current working condition; calculating the residual error between the actually measured value and the dynamic safety threshold envelope; when the residual exceeds the limit, extracting the energy divergence characteristics of the actually measured data; if it is judged that the bridge structure is unstable, a blocking instruction is generated before the pipeline reaches the stretching limit due to physical falling of the bridge structure; triggering circuit breaking mechanisms preset at the two ends of the municipal pipe gallery to act by using the blocking instruction, cutting off a transmission line in the pipe gallery, and synchronously triggering a traffic blocking signal and emergency data broadcast; according to the method, by establishing the structural time-varying mechanical model, the defect that a traditional fixed threshold value cannot adapt to severe change of rigidity of the bridge under construction is overcome, and therefore false alarms caused by normal construction vibration such as concrete pouring and hanging basket walking are effectively shielded while high sensitivity to structural rigidity loss is guaranteed.

To provide a voice adjustment function using a GUI with unified usability and design. [Solution] The broadcasting system is a broadcasting system that broadcasts including AC-4 audio, and includes a receiving unit that receives an application for users to adjust dialogue via data broadcasting. The receiver is a receiver in a broadcasting system that broadcasts including AC-4 audio, and includes a receiving unit that receives an application for users to adjust dialogue via data broadcasting.

This invention discloses an underwater towed measurement system and its emergency response method, belonging to the field of underwater towed measurement technology. The system consists of multiple modules: a communication and power supply module for shipboard power conversion, Ethernet communication photoelectric conversion, and backup power supply; a main control module including a main controller for system power management, timing data broadcasting, and emergency response control; an acoustic positioning module for acquiring the system's underwater position; an emergency response module including a ballast jettison unit for adjusting system buoyancy, a satellite positioning communication unit for reporting the system's position after surface exposure, and a depth sensor for detecting the system's underwater depth; and a payload module for carrying payload equipment and collecting measurement data, including a payload controller for system power management and emergency response control in the event of main controller failure. The underwater towed measurement system and its emergency response method provided by this invention can improve the system's emergency self-rescue capability and search and rescue recovery success rate.