340 results about "Broadcast data" patented technology

The invention discloses a live broadcast anomaly detection method and electronic equipment, and belongs to the technical field of terminals. The method comprises the following steps: performing feature extraction on modal data in live broadcast data to obtain multi-modal features; wherein the multi-modal features comprise at least two modal features of a video feature, an audio feature and a text feature; performing cross-modal correction and intra-modal aggregation processing on the multi-modal features to obtain target multi-modal features; wherein the target multi-modal features comprise target modal features corresponding to the modal features; based on the contribution degree corresponding to each target modal feature, fusing the target multi-modal features to obtain an overall feature; calculating the semantic similarity between the overall feature and the standard live broadcast abnormal feature; and when the semantic similarity is greater than or equal to the similarity threshold, outputting a live broadcast anomaly result, thereby ensuring the accuracy of live broadcast anomaly detection.

The invention discloses a switch, a method and a system for realizing collective communication based on a multicast replication engine, the switch comprises a plurality of ports and a multicast replication engine, and the multicast replication engine comprises a group matcher and a broadcast module; if the multicast replication engine determines that the communication request transmitted by the request port is a broadcast request, the multicast replication engine sends the communication request to a group matcher and receives broadcast data transmitted by a request port target; the group matcher responds to the received broadcast request, determines broadcast ports and corresponding broadcast addresses according to a preset broadcast group table and transmits the broadcast ports and the corresponding broadcast addresses to the broadcast module, the broadcast group table comprises memory addresses configured for all the ports, the broadcast ports are other ports except the request port, and the broadcast addresses are one or more of the memory addresses; and when the broadcast module receives the broadcast ports and the broadcast addresses, each broadcast port is controlled to receive broadcast data through the broadcast addresses. According to the invention, the broadcast operation efficiency can be improved, and the data transmission delay is reduced.

The invention relates to the technical field of live broadcast management, in particular to a digital intelligent live broadcast bullet screen supervision method and system. The method comprises the following steps: acquiring live broadcast bullet screen data and real-time live broadcast data; analyzing the live broadcast bullet screen data, and determining an abnormal bullet screen and an abnormal level of the abnormal bullet screen; performing risk assessment on the abnormal bullet screen in combination with the real-time live broadcast data, and determining a dynamic shielding judgment threshold value of the abnormal bullet screen; and comparing the abnormal level with the dynamic shielding judgment threshold, and determining a display strategy of the abnormal bullet screen according to a level comparison result. And in combination with the real-time live broadcast data, risk assessment is performed on the abnormal bullet screen, the dynamic shielding judgment threshold of the abnormal bullet screen is determined, and the high-risk scene recognition accuracy is improved. And comparing the abnormal level with a dynamic shielding judgment threshold, and determining a display strategy of the abnormal bullet screen according to a level comparison result, thereby reducing interference, retaining free expression of the user, reducing the complaint rate of the user, and inhibiting malicious screen refreshing diffusion.

The invention discloses an interactive behavior feature extraction method and device, equipment, a medium and a product, and relates to the technical field of computers, the method comprises the following steps: obtaining original live broadcast data generated in a live broadcast room, the live broadcast room comprising at least one interactive object; determining multi-modal live broadcast behavior data of the original live broadcast data in the target time window based on the multi-modal behavior data of the interactive object; dividing the multi-modal live broadcast behavior data into a plurality of behavior subsequences; based on the behavior data corresponding to the behavior subsequences, determining behavior cooperation features between the behavior subsequences, behavior interaction features between the interaction objects and time evolution features; and determining a target feature of the live broadcast room based on a fusion result of the behavior cooperation feature, the behavior interaction feature and the time evolution feature. By implementing the technical scheme of the invention, real-time modeling for the multi-behavior sub-sequence of the live broadcast room is realized, and the global feature of the live broadcast room level can be accurately extracted.

The invention discloses a data transmission network optimization method and system for a low-altitude aircraft, and relates to the technical field of unmanned aerial vehicle network optimization, and the method comprises the steps: firstly starting the low-altitude aircraft, setting local communication parameters, and building an initial network registry; periodically broadcasting data by the aircraft, and creating a multi-layer network topological graph; link communication quality prediction is carried out, and relay node path adaptation optimization is carried out according to the link communication quality prediction; a relay node is selected according to an optimization result to establish a real-time data communication path; and finally performing data transmission management based on the selected node and path. The technical problems of poor communication stability, insufficient real-time performance and low data transmission reliability caused by single-dimensional evaluation, insufficient dynamic adaptability and low path optimization efficiency of a traditional communication network optimization method are solved, and multi-dimensional feature fusion, dynamic topology response and multi-target path optimization are achieved. And the technical effects of stability, real-time performance and data transmission reliability of a communication network of the low-altitude aircraft are further improved.

The present invention relates to methods and systems for dynamically rendering interactive elements in a live broadcast. The method performed by an application server includes identifying chroma key areas in a live broadcast created by a creator and streamed to users via a live streaming interactive platform. The method includes obtaining an interactive element to be displayed in the chroma key areas based on user inputs from the creator and the users in the live streaming interactive platform, and live broadcast data. Further, the method includes rendering at least a portion of the interactive element in the chroma key areas based on an image fusion technique. The method includes rendering the live broadcast of the creator to the users upon post-processing of the interactive element, thereby enabling the users to view the interactive element rendered in the chroma key areas of the live broadcast.

The invention discloses a ship traffic intelligent prediction and cooperative guidance method and system based on NAVDAT communication, and the method comprises the steps: 1) collecting NAVDAT broadcast data, and carrying out the processing of the collected data, and obtaining a unified format tensor; 2) carrying out traffic state modeling and prediction, namely dynamically predicting the traffic density, berthing waiting time and potential congestion points of a specific water area based on a graph neural network and a sliding time window mechanism by fusing ship behaviors, task attributes and environmental factors; 3) according to the credibility level of the prediction result, constructing a differentiated information broadcast content packet, and broadcasting and pushing a recommendation strategy to multiple ships through an NAVDAT system to realize consistent guidance; and 4) optimizing ship response feedback, obtaining a response behavior of the ship to suggestions through ship-shore communication or indirect data acquisition, using execution deviation data for prediction updating and pushing mechanism optimization, and constructing a prediction-guidance-feedback-learning closed-loop optimization path.

The invention provides a live broadcast data processing method and device, a computer readable medium and a program product. A specific embodiment of the invention comprises the following steps: carrying out time sequence alignment on live broadcast data of multiple modes in a time period to obtain multi-mode alignment data; determining live broadcast topics in a time period according to the multi-modal alignment data; determining respective group behavior characteristic data of at least one type of users participating in the live broadcast topic according to the multi-modal alignment data; and determining the health degree of the live broadcast process according to the group behavior feature data under the respective live broadcast topics in the plurality of time periods in the live broadcast process. According to the method, the live broadcast content and various types of users participating in the live broadcast process are accurately and comprehensively described in combination with the live broadcast data of multiple modes, an accurate and comprehensive data basis is provided for downstream tasks, and the health degree of the live broadcast room can be accurately determined.

The embodiment of the invention provides a continuous playing method and system for a multimedia data stream, a storage medium and an electronic device, and the method comprises the steps: transmitting a first data packet corresponding to the multimedia data stream to a mobile terminal when a first playing terminal plays the multimedia data stream, the mobile terminal uses the first data packet to generate a continuous playing instruction data packet required by continuous playing of a second playing terminal in the at least two playing terminals; analyzing a continuous playing instruction data packet sent by the mobile terminal to obtain a continuous playing instruction; generating a control signal according to the playing progress of the first playing terminal, cutting off a signal route of the first playing terminal by using the control signal, and obtaining a continuous playing data stream of the multimedia data stream according to the continuous playing address; and performing format conversion on the continuous playing data stream according to the playing format of the second playing terminal to obtain the target data stream, and playing the target data stream on the second playing terminal, thereby solving the problem of how to improve the continuous playing efficiency of the equipment in a multi-equipment switching playing scene in the related technology.

The invention relates to the technical field of information acquisition, in particular to a fire-fighting emergency broadcast data information acquisition system which comprises the following steps: performing sound source positioning analysis on original data to obtain sound source distribution data; performing sound propagation loss estimation according to the sound source movement track data to obtain sound propagation loss data; emergency broadcast coverage demand period reference simulation evaluation is carried out according to the sound propagation loss data to obtain period reference data; and according to a strategy gradient algorithm, an emergency broadcast putting strategy adjustment model is constructed through the environment correction data, and the emergency broadcast putting strategy adjustment model is sent to a fire-fighting command cloud platform so as to execute fire-fighting emergency broadcast data information acquisition and analysis. According to the method, the attenuation degree of the broadcast signals under different environment conditions can be analyzed through estimation of the sound propagation loss, data support can be provided for the actual broadcast propagation effect, the broadcast signals can be optimally delivered according to the environment conditions, and therefore effective transmission of the signals is ensured.

The invention relates to a multi-terminal offline media synchronous playing method and system in a local area network. The multi-terminal offline media synchronous playing method in the local area network comprises the following steps: performing master-slave election on all terminals, and confirming a master device and a plurality of slave devices; performing clock synchronization on the master device and all the slave devices; packaging the synchronized playing progress of the master device to form a master device broadcast data packet, and sending the master device broadcast data packet to all slave devices; after the slave device analyzes the time delay and play delay, time delay and play delay are calculated respectively, and network time delay and progress errors are obtained; whether the absolute value progress error of the current slave device exceeds an error threshold value or not is judged; if not, the master device continues to broadcast the data packet; and if yes, pre-estimated target frame correction is carried out on the slave device, and playing progress synchronization of the slave device is completed. According to the multi-terminal off-line media synchronous playing method in the local area network, the dependence of the server is effectively reduced, and the playing progress synchronization precision is remarkably improved.

The invention discloses a terminal network distribution system and method, and belongs to the technical field of smart home. The system comprises a terminal and a control terminal. The terminal is used for continuously sending Bluetooth broadcast data after being powered on, and the Bluetooth broadcast data carries a first encrypted message; the control end is used for obtaining a second encrypted message after receiving the Bluetooth broadcast data, and the second encrypted message is generated in response to successful decryption of the first encrypted message; and the terminal is also used for establishing a Bluetooth connection with the control end after receiving the second encrypted message and successfully decrypting the second encrypted message, so as to access the WIFI network through the control end. According to the invention, the terminal continuously sends the Bluetooth broadcast data after being electrified, so that the terminal can automatically enter the network distribution state to continuously send the Bluetooth broadcast data without actively controlling the terminal by a user, and the user experience in the network distribution process of the terminal is improved.

A system and method for enabling a sensor attached to a moveable item to wirelessly broadcast data signals in an unrestricted area or zone while simultaneously ensuring that the sensor attached to the moveable item stops wirelessly broadcasting the data signals in a classified area or zone, where the sensor is configured to harvest ambient or other RF energy. The system and method include a barrier infrastructure for positioning in the unrestricted area or zone.

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 embodiment of the invention provides an intensive care data acquisition method and system, which can solve the problems of alarm fatigue, low equipment management efficiency and data islanding existing in an ICU environment for a long time. The method comprises the following steps: receiving a Bluetooth broadcast data packet reported by a plurality of Bluetooth gateways deployed in an ICU ward, wherein the Bluetooth broadcast data packet comprises Bluetooth Beacon signals periodically broadcasted by bed unit Bluetooth tags configured by a plurality of sickbed units and low-power-consumption Bluetooth broadcast signals from a plurality of Bluetooth converters; performing position estimation on each Bluetooth converter based on the Bluetooth broadcast data packet, so as to automatically bind the medical equipment and the bed units according to the spatial position relationship between the Bluetooth converters and each bed unit; and when the equipment monitoring data from the Bluetooth converter is received, associating the equipment monitoring data with the patient information of the corresponding bed unit, and generating a structured monitoring data record with the unique identification of the bed unit, the patient identification and the medical equipment identification.

This application relates to the field of IoT smart devices and provides a method for linking a pet collar and a feeder. The method includes: controlling the pet collar as a Bluetooth beacon to broadcast data packets with a preset transmission power and preset period; controlling the feeder to initiate Bluetooth passive scanning, listening to the broadcast channel according to preset scanning parameters, and performing format filtering and signal strength value threshold filtering after receiving data packets; storing the media access control address, signal strength value, and timestamp of the corresponding pet collar into a local fixed-capacity circular buffer queue after the format filtering and threshold filtering are passed; controlling the feeder to perform verification at a preset period, clearing historical data exceeding a preset valid duration in the circular buffer queue; when all data corresponding to the pet collar in the circular buffer queue is cleared, determining that the pet has left the area, reporting a record containing the corresponding media access control address, current UTC, and cumulative presence time, and triggering a preset linkage action.

The application discloses a game event live broadcast data processing method and device, a storage medium and computer equipment. The method comprises the following steps: acquiring game event data collected by a game event terminal and distributing the game event data to a local rendering window and an off-screen rendering window; rendering local display content in the local rendering window according to a local rendering rule for local viewing, and performing off-screen rendering on game competition data according to a live off-screen rendering rule through a rendering process to obtain a GPU texture handle and convert the GPU texture handle into a DirectX texture object to determine live display content as a second data source; sending game picture data to live streaming software, storing each frame of texture object of the off-screen rendering window in an image buffer, capturing the texture object in the image buffer frame by frame and sending the texture object to the live streaming software, and pushing the live streaming to a live broadcast platform after completing content synthesis at a GPU level. The director can hide some key information when performing tactical analysis.

The utility model relates to the technical field of intelligent livestock breeding, in particular to a Bluetooth collecting and positioning device based on Beidou communication and a necklace, which comprise a Beidou communication circuit, a Bluetooth host scanning circuit, a positioning circuit and a processing circuit. The device is compact and simple in structure, low in weight and low in cost, can be worn by cattle, sheep, horses, camels and other livestock in field grazing, scans matched Bluetooth node necklace broadcast data around the device through the Bluetooth host scanning circuit, obtains current position coordinate information through the positioning circuit, uploads the position coordinate information to a Beidou satellite through the Beidou communication circuit, and sends the position coordinate information to the Beidou satellite through the Beidou communication circuit. And the domestic Beidou communication system can ensure that the livestock can accurately report the positioning information in an outdoor area without signal coverage.

The invention relates to a remote sensing satellite broadcast data processing method and system, and belongs to the technical field of satellite remote sensing data processing, and the method comprises the steps: S1, receiving remote sensing satellite broadcast data, and verifying and storing a data packet; s2, the data packet is analyzed, a remote sensing image is generated, and the remote sensing image comprises a single slice or an area image formed by splicing a plurality of sub-images; s3, generating a unique orbit number for each orbit remote sensing image; s4, when packet loss occurs in the data transmission process, automatically identifying lost data blocks, and blackening lost parts in the remote sensing image; and S5, distributing the processed remote sensing image and related data to a target user. According to the method, intelligent packet loss processing and a unique track number generation mechanism are introduced into a data processing flow, so that the integrity of the remote sensing image and the convenience of data management are remarkably improved.

The invention provides a communication method and system, electronic equipment and a program product, and relates to the technical field of vehicle communication. The method applied to a target vehicle comprises the following steps: determining a first target device set, wherein the first target device set comprises at least one first target device; obtaining a shared data set of each first target device, and generating to-be-broadcasted data based on the shared data set of each first target device and / or the shared data set of the target vehicle; and broadcasting a first broadcast message carrying the to-be-broadcasted data. The method is used for solving the problem that in the prior art, normal communication of vehicles is affected due to the fact that connection to a cloud service center cannot be achieved through the Internet.

There is provided a system including a display, a wireless communication element, a non-transitory memory storing an executable code, and a hardware processor executing the executable code to receive an input signal including a media content and a data content associated with the media content, extract the data content from the input signal, display the media content on the display, and transmit the data content of the input signal to a user device using the wireless communication element.

This invention discloses a method, apparatus, and system for sending broadcast data packets longer than a preset length to a group. The method includes: when there are broadcast data packets longer than a preset length to be sent to the group, splitting the broadcast data packets to be sent into multiple sub-data packets; determining the number of transmission time slot groups required to send the broadcast data packets to be sent; dividing the sub-data packets into multiple subgroups according to the number of groups; a transmission synchronization frame in one cycle includes one set of transmission time slots, each time slot accommodating one subgroup of data packets; all sub-data packets contained in all time slots corresponding to each data packet to be sent constitute one set of data packets; sending a synchronization frame header indication packet for that set at the beginning of each transmission time slot, indicating that multiple sub-data packets will be sent consecutively thereafter; and sending the sub-data packets to the group within the time slots of different subgroups corresponding to each cycle. This invention can efficiently send broadcast data packets longer than a preset length to a group in high-density wireless communication scenarios.

The invention discloses a distributed energy storage scheduling method and system, and the method comprises the steps: constructing a master node and a slave node for energy storage scheduling, enabling the master node to be used for issuing an energy storage scheduling instruction to the slave node, and pre-constructing a period duration and a non-period duration of energy storage scheduling in the master node, and enabling the period duration and the non-period duration to be generated alternately; time slot segmentation is carried out on each energy storage scheduling period in the master node, a unicast request instruction is sent to the slave node according to the segmented time slots of the energy storage scheduling periods, the unicast request instruction comprises an energy storage scheduling instruction, and the slave node can only send data after receiving the unicast request instruction of the master node; an execution command is configured in the non-period of the master node and sent to the slave node in the non-period, and the slave node obtains the corresponding execution command in the non-period and then executes the energy storage scheduling instruction through execution equipment; and each slave node obtains the corresponding unicast request instruction and then sends broadcast data to the outside for data synchronization, and synchronously executes corresponding energy storage scheduling.

The invention discloses a battery health state monitoring method based on Bluetooth Beacon long data packet broadcast, and relates to the technical field of electric bicycle battery fire safety monitoring. According to the method, all batteries are forced to adopt the same Bluetooth Beacon long data packet format to broadcast data through a unified reporting standard protocol, brand barriers are thoroughly broken, and seamless access and centralized management of global battery data are realized; according to the invention, through dual-channel real-time data acquisition of the Bluetooth gateway and the mobile phone App and in combination with a cloud millisecond risk analysis model, the whole process from data receiving, decryption and analysis to instruction issuing can be completed within 3 seconds. According to the invention, through data communication among the electric bicycle battery health state data reporting standard protocol, the battery BMS module with the Bluetooth function, the Bluetooth gateway, the mobile phone App and the cloud server, monitoring and early warning of the battery health state can be realized, and fire accidents caused by the electric bicycle battery are restrained from the source.

The invention discloses a safety detection method, system and device for a controller local area network, and belongs to the technical field of electric digital data processing, and the method comprises the following steps: collecting broadcast data of the controller local area network; preprocessing the broadcast data to obtain a data table of the to-be-detected data; predicting the data table through the prediction model to obtain a security category; wherein a self-attention module of the prediction model is connected with input layers of the graph neural network and the LSTM network; after the hidden layer output of the graph neural network and the LSTM is subjected to splicing operation and activation, obtaining a feature vector; and the feature vector passes through a classifier to obtain a security category. Predicting the to-be-detected data of the CAN bus through a prediction model based on machine learning to obtain a security category; extracting spatial features of the table through GCN; extracting time features through LSTM; the spliced features retain the space-time characteristics of the broadcast data, and the accuracy and reliability of classification are improved.

The embodiment of the invention discloses an interface display method and device for a tourism platform, electronic equipment and a storage medium, and the method comprises the steps: displaying a scenic spot list of the tourism platform, the scenic spot list comprises a plurality of scenic spots, and each scenic spot corresponds to at least one camera position; in response to a selection operation for the scenic spot list, determining a scenic spot corresponding to the selection operation as a target scenic spot; obtaining people flow information, scenic spot introduction information and camera position information of the target scenic spot; and displaying a live broadcast interface corresponding to the target scenic spot according to the visitor flow rate information, the scenic spot introduction information and the camera position information, and displaying a time axis in the live broadcast interface of the target scenic spot, the time axis covering a real-time live broadcast time period and a historical playback time period, and displaying a plurality of time mark points on the time axis. The scheme can improve the query efficiency of the user for the live broadcast data.

Provided are a communication method and a communication apparatus. In the method, a communication apparatus can receive first information, one or more values in the first information corresponding to broadcast data generated by a core network, and the communication apparatus can also generate a first value corresponding to broadcast data received from an access network device. Therefore, on the basis of whether the one or more values in the first information match the first value, the communication apparatus can determine whether the broadcast data received from the access network device is generated by the core network. If the broadcast data received from the access network device is generated by the core network, same indicates that the broadcast data is legitimate. On the basis of the first information, the verification of the legitimacy of the broadcast data received by the communication apparatus is added, which helps ensure the normal operation of the communication apparatus.

The embodiment of the invention relates to the Internet technology, discloses a live broadcast auxiliary method and system, a server, a storage medium and a program product, and can improve the live broadcast efficiency and the live broadcast effect, thereby effectively improving the average stay time of a user and improving the user experience. The method comprises the following steps: generating auxiliary performance content according to real-time live broadcast data and a preset content library; determining whether a cold field event occurs or not according to the real-time live broadcast data, and if the cold field event occurs, determining that a broadcast accompanying service is needed; and when it is determined that the accompanying broadcast service is needed, selecting auxiliary performance content for collaborative live broadcast, and executing the auxiliary performance content by AI virtual accompanying broadcast.

The application provides a live video generation method and device, an electronic device and a storage medium, relates to the technical field of network live broadcast, and can make the virtual background in the live video more real and improve the live broadcast effect. The method is applied to a content expression device in a live broadcast system and includes the following steps: acquiring audio data; acquiring three-dimensional scene data; processing the audio data based on a digital person image generation model to obtain multiple frames of digital person images corresponding to the audio data; the digital person image generation model has the capability of obtaining multiple frames of digital person images corresponding to the audio data based on the audio data; rendering multiple frames of live broadcast images based on the multiple frames of digital person images and the three-dimensional scene data; the live broadcast images include digital person images and a virtual three-dimensional scene indicated by the three-dimensional scene data; and sending the audio data and the multiple frames of live broadcast images to a live broadcast data generation device, so that the live broadcast data generation device generates live broadcast video data based on the audio data and the multiple frames of live broadcast images.

An evolved multimedia broadcast multicast services (eMBMS) core may map sensor data or telemetry data from a central repository server (e.g., tag it with an area code from where the data is being generated) to a service area. The eMBMS core may inform the radio access network to create a service area for the specific area code, which may be part of or an entire city, county, or the like. Then the radio access network may broadcast the data to the vehicles or devices in the specific area code.