439 results about "Broadcast system" patented technology

The invention discloses an intelligent fire evacuation system and method based on dynamic environment perception, and relates to the technical field of fire fighting and safety protection, and the method comprises the steps: collecting real-time data in a fire scene; dividing the evacuation area into a plurality of grid units by using a two-dimensional rasterization technology to form a real-time updated environment map; in combination with dynamic modeling data, an optimal evacuation path is generated by using an improved path planning algorithm; an evacuation path is transmitted to trapped people in real time in a visual and auditory mode, and the visual and auditory mode comprises the use of a dynamic indicator lamp, a marker lamp, an electronic screen and a voice broadcast system; the guidance content is adjusted in combination with real-time data, and the evacuation efficiency is optimized; fire fighting equipment is linked, and the evacuation path environment is optimized; and the evacuation state is monitored through a dynamic data feedback mechanism. According to the invention, an evacuation path is calculated and updated in real time by integrating a sensor network, fire scene dynamic modeling and an intelligent path planning algorithm, and a safe and efficient evacuation scheme is provided for trapped people in a fire.

The invention discloses a flood detention area emergency evacuation early warning method based on environmental perception and intelligent analysis, and relates to the technical field of flood control and disaster mitigation, and the method comprises the steps: collecting the original data of a flood detention area site, and forming a monitoring array; a monitoring array is divided into a plurality of monitoring units according to geographic grids, a rainfall permeation model is established according to rainfall data and soil humidity data, a surface runoff field is constructed in combination with terrain elevation data, and the confluence direction of the runoff field is calibrated through water level data; based on a rainfall penetration model and a surface runoff field, generating a flood detention area inundation evolution sequence, segmenting into an inundation grade map according to a time step length, planning a flood detention area emergency evacuation path, matching with a road network in a geographic information system, generating an optimal evacuation path, and issuing graded early warning information to an early warning area. And sending a withdrawal instruction to residents in the flood detention area through the emergency broadcasting system. According to the invention, by establishing a partition early warning mechanism and a differential early warning strategy, accurate delivery and efficient transmission of early warning information are realized.

The invention relates to the technical field of network communication and video processing, in particular to an intelligent global cloud live broadcast system based on AI and multi-operator and multi-cloud optimization, and the system comprises a data collection module which is used for collecting live broadcast video streams; the video compression module adopts H.265 coding; the content review module is used for performing multi-modal review; the RPMTS packaging module is used for accessing three operator cloud private line POP nodes through a public network after packaging; the decoding module is used for decoding POP nodes in the middle area; the translation module is used for generating multi-language subtitles or dubbing; the multi-operator and multi-cloud adaptability matrix module calculates an optimal path in combination with an AI algorithm and a multi-cloud cost adaptability matrix; the multi-branch access module is used for realizing branch node cooperative forwarding; and the multi-language distribution module is used for generating multi-language subtitles and dubbles and pushing the multi-language subtitles and dubbles to each global live broadcast platform, so that synchronous distribution is realized, and the system can reduce global live broadcast delay, improve multi-language coverage capability and realize high reliability and cost optimization.

The invention provides an emergency broadcast playing method and system for disasters in an outdoor scene, and relates to the technical field of emergency broadcasts, cameras in a region are adopted to monitor the evacuation state of personnel in the outdoor scene in real time, and an emergency broadcast system and a rescue system are triggered through the evacuation state to perform linkage, so that bidirectional information transmission is realized; and the priority of the broadcast content played by the emergency broadcast is adjusted according to different instruction information in bidirectional information transmission, so that the broadcast content has pertinence, and rescue workers can receive key instructions.

The invention discloses a parallel constant-voltage digital audio power amplifier and a broadcasting system. Comprising a line input module, a line output module, a first analog-to-digital conversion circuit, a second analog-to-digital conversion circuit, a third analog-to-digital conversion circuit, a digital signal processor, a single-chip microcomputer, a digital-to-analog conversion circuit, an error comparator, a modulator, an integrating circuit, a pulse width modulation input half-bridge output stage, and a first carrier frequency selection and gain adjustment module. A second carrier frequency selection and gain adjustment module, a first LC filter, a high-frequency compensation network, a communication bus and a power switch. The technical problems that an existing multi-channel parallel digital constant-voltage power amplifier is only limited to power amplifier channels in the same power amplifier, the parallel connection mode only uses the first channel as a main power amplifier and only uses the other channels as slave power amplifiers, and certain limitation exists are solved.

The invention relates to the technical field of live broadcast display, in particular to a live broadcast method and system based on an intelligent digital human model, and a medium. The method comprises the following steps: acquiring user live broadcast environment data; facial expression data, voice data and limb movement data are collected through a multi-modal sensor, and feature fusion processing is carried out to obtain user dynamic portrait data; generating a digital human model in real time based on the dynamic portrait data of the user, and constructing an intelligent driving engine comprising an emotion response module and a semantic understanding module for the digital human model; generating a personalized digital human image and a digital human behavior decision tree based on an intelligent driving engine; analyzing the live broadcast interaction data stream in real time; through multi-modal perception, an intelligent driving engine and a dynamic interaction strategy, a personalized, high-interactivity and self-adaptive flow pushing intelligent digital human live broadcast system is realized, and the technical bottlenecks of existing virtual live broadcast in the aspects of interactivity, personalization, scene fusion and the like are broken through.

The invention relates to the technical field of disaster early warning, in particular to an earthquake early warning method of an emergency early warning broadcast system, which comprises the following steps: acquiring latitude and longitude coordinates of a seismic source and earthquake monitoring data; according to the longitude and latitude coordinates of the seismic source, determining a broadcast station distribution area range which is represented by longitude and latitude; the method comprises the following steps: constructing an earthquake risk topological space based on historical earthquake data, and dividing earthquake risk grades in the topological space; according to the earthquake risk level, determining a corresponding broadcast emergency degree parameter, and generating a broadcast message code; and sending the broadcast message code to broadcast stations in the broadcast station distribution area through a power line carrier and a wireless communication network so as to trigger earthquake early warning broadcast, accurately determining an early warning range through a topological space mapping technology in combination with geological structure data, remarkably reducing early warning blind areas, and avoiding excessive early warning.

An alert broadcast system can receive a first alert message indicating an emergency from an alert management system. The first alert message generated by an emergency alert originator can include a unique identifier associated with the emergency. The alert broadcast system can forward the first alert message to a first group of wireless devices and cause each of the first group of wireless devices to temporarily store the unique identifier. The alert broadcast system can receive a second alert message, including the unique identifier from the alert management system. The alert broadcast system can forward the second alert message to a second group of wireless devices. The respective wireless device can perform an action based on a determination that the respective wireless device has received the first alert message prior to receiving the second alert message and that the second alert message is partly duplicative of the first alert message.

The invention discloses a broadcast signal interference correction method and system, a medium and equipment. A broadcast signal is collected in real time and converted into a digital signal, preprocessing is carried out to obtain a first audio signal, feature extraction is carried out according to the first audio signal to obtain audio features, and corresponding preprocessing is carried out on different types of audio features; integrating the audio features to generate an audio feature matrix, inputting the audio feature matrix into a preset fusion model to output interference analysis, receiving the interference analysis, obtaining a corresponding template in combination with a first confidence coefficient, and filling dynamic parameters to generate a correction strategy and the confidence coefficient; wherein the fusion model comprises a decision tree unit and a multi-modal fusion decision unit; and obtaining a correction index corrected by the correction strategy, generating an evaluation index in combination with interference analysis and the correction strategy, and performing adaptive feedback on the fusion model through the evaluation index. Intelligent detection and automatic correction of broadcast signal interference are realized, and the stability and signal quality of a broadcast system are improved.

The invention discloses an AI-based motion subject tracking and streaming media optimization live broadcast system, and particularly relates to the technical field of motion subject tracking and streaming media optimization, AI-driven motion subject detection and tracking and streaming media coding adaptive control are closely fused, and code rate fluctuation of a coding end and bandwidth change of a network end are sensed in real time, so that the accuracy of the motion subject tracking and streaming media optimization live broadcast system is improved. A continuous and explainable live broadcast jitter risk analysis index is constructed, potential image quality jitter and delay risks are identified in advance through fusion of causal rule scoring and time sequence prediction, and the live broadcast jitter risk analysis index is directly mapped into an adaptive coding and transmission adjustment instruction. Priority guarantee, code rate distribution smoothing and delay control optimization of a key area are realized, the definition and playing smoothness of a live broadcast picture are remarkably improved, and sudden jitter and jamming phenomena are reduced.

The invention relates to the technical field of digital network broadcasting, in particular to a multifunctional integrated digital network broadcasting system based on an intelligent algorithm. Comprising a multi-modal data acquisition module, a broadcast content generation module, a broadcast scheduling decision module, an abnormal interference suppression module and a terminal collaborative feedback module. The multi-modal data acquisition module collects multi-source information of a coverage area in real time. And the broadcast content generation module performs intelligent clustering analysis based on the information to generate structured content. And the broadcast scheduling decision module adopts a graph attention scheduling algorithm to optimize a scheduling strategy. And the abnormal interference suppression module identifies an interference source by using a residual convolutional network, and repairs an interfered signal through a recurrent neural network. And the terminal collaborative feedback module executes playing and data feedback, and dynamically adjusts receiving parameters and pushing strategies by means of federal reinforcement learning. The intelligent level, the adaptability, the user satisfaction and the overall service efficiency of the digital network broadcasting system are remarkably improved.

A device, system, and method whereby a speech-driven system can distinguish speech obtained from users of the system from other speech spoken by background persons, as well as from background speech from public address systems. In one aspect, the present system and method prepares, in advance of field-use, a voice-data file which is created in a training environment. The training environment exhibits both desired user speech and unwanted background speech, including unwanted speech from persons other than a user and also speech from a PA system. The speech recognition system is trained or otherwise programmed to identify wanted user speech which may be spoken concurrently with the background sounds. In an embodiment, during the pre-field-use phase the training or programming may be accomplished by having persons who are training listeners audit the pre-recorded sounds to identify the desired user speech. A processor-based learning system is trained to duplicate the assessments made by the human listeners.

The invention discloses a multifunctional emergency broadcasting system based on Beidou short messages. According to the invention, a voice recognition module in the intelligent voice interaction broadcast module can quickly convert a voice instruction input by a user through a microphone into text information, so that the complexity and possible misoperation of manual input are avoided, and user feedback is more direct and efficient; the natural language processing and demand analysis module performs semantic analysis on the recognized text, accurately extracts the core content required by the user, and associates an emergency keyword library in the system, so that the system can quickly understand the intention of the user; the multi-language speech synthesis module can convert a broadcast text generated by the system into a language or dialect familiar to a user, and the three parts act synergistically, so that the interaction efficiency of the system and the user, the accuracy of demand response and the coverage range of information transmission are remarkably improved, emergency broadcast is upgraded from one-way notification to two-way interaction, and the user experience is improved. And the practicability and the reliability of the system in a complex scene are further enhanced.

This application discloses a highway traffic diversion alarm broadcasting system and method based on AI recognition, relating to the field of highway diversion technology. This application analyzes the load of each vehicle and the driving experience, historical highway violations, and historical highway accidents of each driver to divert vehicles, diverting high-risk vehicles to safer highways, thereby ensuring vehicle safety. Different safe following distances and speeds are set for different highways to avoid traffic accidents caused by excessively close following distances or excessive speeds. Furthermore, the system monitors all vehicles traveling on each highway, broadcasting warnings when accidents or violations are detected, which enhances deterrence against drivers and prevents repeated violations from leading to traffic accidents.

A method and apparatus for inheriting a broadcast system information in a wireless communication system is provided. A wireless device receives, from a first cell, a broadcast system information including a first information and a second information. A wireless device receives, from a second cell, another broadcast system information including anew information to replace the first information. A wireless device performs a measurement procedure, a cell selection procedure, and / or a cell reselection procedure while in the second cell, based on the second information received from the first cell.

The invention relates to a face and limb fusion capture method, a virtual live broadcast system, equipment and a medium, a rear end adopts a first virtual camera to collect and process a first image shot by the first camera to obtain a first video stream, and adopts a second virtual camera to collect and process a second image shot by the second camera to obtain a second video stream; the back end extracts face key point coordinate data from the first video stream, extracts skeleton node coordinate data from the second video stream, integrates the face key point coordinate data and the skeleton node coordinate data to obtain a single message body, and sends the single message body to the front end; the front end receives and analyzes the single message body to obtain a facial two-dimensional absolute pixel coordinate and a skeleton three-dimensional absolute pixel coordinate, and performs spatial registration on the facial two-dimensional absolute pixel coordinate and the skeleton three-dimensional absolute pixel coordinate to obtain a facial three-dimensional absolute pixel coordinate; the front end fuses the three-dimensional absolute pixel coordinates of the face and the three-dimensional absolute pixel coordinates of the skeleton so as to drive the virtual character to live; and the phenomena of key frame loss and skeleton-expression dislocation are improved.

Systems and methods are described for batch materialization of an incremental change data capture (CDC) changeset. The primary keys are extracted from the incremental CDC changeset and are broadcast to a plurality of executors. By iteratively broadcasting the extracted primary keys in groups, each being a size that is less than a broadcast limitation, the full dataframe of extracted primary keys is broadcast to the executors. Each executor filters a baseline data table based on the extracted primary keys to generate a baseline match dataframe with all primary keys matching the extracted primary keys, and a baseline unmatched dataframe with all primary keys not matching the extracted primary keys. Each executor receives a partitioned incremental CDC changeset and applies the changes to the baseline match dataframe to produce a baseline change dataframe, which is merged with the baseline unmatched dataframe to produce a final changed baseline data table.

The invention, which relates to the technical field of emergency communication, provides a satellite-communication-based on-site data acquisition, backhaul and broadcasting system comprising a multi-mode communication system, an Internet of Things data acquisition, backhaul system, an early warning information broadcasting system, a power supply system, an information security encryption system and a control system. The multi-mode communication system integrates a Ku wave band satellite communication module, an L wave band satellite communication module, a Beidou short message module and a 4G / 5G communication module. According to the multi-mode communication system, complementation is achieved through multiple communication means such as satellites, Beidou and 4G / 5G, the defect that a traditional system depends on a ground network is overcome, it can still be guaranteed that a communication link is unblocked in a three-break scene, real-time transmission of early warning information and cooperative work of Ku-band and L-band satellite communication modules are achieved, and the communication efficiency is improved. It is ensured that the system has bidirectional communication and emergency broadcast capabilities under extreme meteorological conditions, the forward broadcast error rate is low, the transmission rate is stable, and the reliability requirement of disaster early warning is met.

The present invention discloses a method for identifying vehicle paths on highways, which belongs to the field of electronic communication technology for highways. The method comprises the following steps: S1, a vehicle enters the highway through an ETC gantry at a highway entrance, the ETC gantry transmits path identification point information to an OBU via an RSU radio frequency device, and transmits the information to an on-board path identification system via the OBU; S2, a message broadcast receiving module and a comparison broadcast receiving module on the on-board path identification system respectively receive broadcast signals of a message broadcast base station and a comparison broadcast base station in a broadcast system, and an on-board broadcast device normally plays audio converted from the broadcast signals transmitted by the message broadcast base station; the method can calculate the precise driving route of the vehicle according to the positions of the message broadcast base station 11 and the comparison broadcast base station 12, and utilizes the existing wireless broadcast system, thereby greatly reducing cost investment, improving the accuracy of calculation of the ETC charging system, and ensuring the interests of users.

The invention discloses a petroleum drilling machine driller voice interaction system and method. The system comprises a man-machine interaction voice operation control system, an integrated driller voice processing system and a drilling machine equipment processing terminal. Awakening, analysis and feedback of voice instructions are achieved through the off-line voice module, key equipment instructions (such as a winch, a rotating disc and a slurry pump) need to be confirmed through secondary voice so as to ensure safety, and non-key equipment instructions (such as a hydraulic station and picture switching) are directly executed; the alarm voice broadcasting system screens and broadcasts abnormal information of the drilling equipment in real time, and driller sight transfer is reduced; according to the control method, a voice instruction is transmitted to the integrated driller processing system through a 485 communication protocol, and drilling machine equipment is driven by a PROFINET protocol to execute actions after logic processing. The operation process is simplified through voice interaction, the operation efficiency and safety are improved, layered instruction confirmation and real-time alarm broadcasting are combined, and the intelligent level of petroleum drilling machine control is remarkably improved.

This disclosure relates to techniques for configuring conditional handover in a non-terrestrial wireless communication system. A wireless device and a cellular base station may establish a non-terrestrial network based wireless link. The wireless device may receive conditional handover information from the cellular base station in broadcast system information. The conditional handover information may indicate conditional handover trigger conditions for one or more candidate cells. The wireless device may evaluate the conditional handover trigger conditions. The wireless device may perform handover to a candidate cell when conditional handover to the candidate cell is triggered.

A device in a communication or broadcast system may comprise a memory, at least one transceiver, and at least one processor, comprising processing circuitry, connected to the memory and the at least one transceiver. The device may be configured to: acquire a signal; identify information about at least one dummy parity check (PC) bit among one or more PC bits of the signal on the basis of at least one information bit of the signal and a rate matching size for a polar code; identify a decoder setting for error detection and error correction on the basis of information about the at least one dummy PC bit; and decode the signal based on the decoder setting. The at least one dummy PC bit may include a bit having a fixed value regardless of one or more preceding bits of the decoding among the one or more PC bits.

The invention relates to the technical field of intelligent broadcasting, in particular to a data transmission method for intelligent broadcasting, which comprises the following steps of: presetting a point location in a scene, and receiving data information issued by a server through the point location; after processing the data information, carrying the data information through an optical signal and sending the data information; the receiving end receives and extracts the optical signals carrying the data information, and converts the received various optical signals into electric energy to charge receiving end equipment; and decoding the extracted optical signal to obtain data information. The problems of interference control, content maintenance and energy management existing in a traditional broadcasting system are solved, and the system is particularly suitable for application scenes with high requirements for information safety and equipment endurance.

The invention discloses an RPA automatic live broadcast system based on a WebView module embedded in a mobile device, the RPA automatic live broadcast system comprises the mobile device and a Web end, the mobile device comprises a pushing end and a watching end, and the WebView module is embedded in the pushing end; the WebView module is used for loading a customized JS script and calling a required JS method, can receive various data and instructions transmitted by the pushing end, and feeds back an execution result of the Web end to the pushing end; the Web end is provided with an RPA function module and has a live broadcast platform function; and the RPA function module can realize automatic simulation operation of account authorization, commodity popup and bullet screen sending. The invention also discloses a method of the live broadcast system. The method comprises the following steps: S1, initializing; s2, authorizing login; s3, live broadcast operation (including commodity pushing and bullet screen replying) is carried out; and S4, ending live broadcast. The method improves the live broadcast efficiency, reduces manual errors, improves the live broadcast quality, enhances the live broadcast flexibility, can be customized and developed according to different platforms, and is wide in application range.

A method comprising: at an importer of an IBOC digital radio broadcasting system: establishing a data link to an audio client configured to buffer audio from an audio source over a buffering duration, to produce buffered audio; receiving, from the audio client, an indication of the buffering duration; identifying a logical channel of an IBOC waveform assigned to the audio client and configured to transmit PDUs of the audio at a PDU rate; computing a quantized number of PDUs that is greater than one into which the buffered audio is to be divided at the audio client based on the buffering duration and the PDU rate; sending, to the audio client, an indication of the quantized number of the PDUs; and upon sending importer data requests to the audio client over the data link, receiving, from the audio client, client data responses each including the quantized number of the PDUs.

In a wireless communications system comprising a user device and a base station, the base station periodically broadcasts system information which is used by the user device in a random access procedure to connect to the base station. The base station grants uplink resource to the user device for sending a connection request message. In response to the connection request message, the base station transmits a contention resolution message, which the user device must acknowledge. The system information periodically broadcast by the base station comprises an acknowledgement control marker defining whether the acknowledgement is to be sent on a reserved uplink control channel using second uplink resource or via first uplink resource allocated to the user device in the uplink grant for the connection request message.

The invention relates to the fields of shipbuilding and information technology, and more particularly to watercraft intended for displaying advertising and entertainment content. The technical result, which consists in increasing target audience reach and providing more effective broadcasting of advertising and / or entertainment content, is achieved in that an advertising and entertainment surface vessel is configured in the form of a surface vessel having a deck; mounted to the deck, along both sides of the vessel, are vertical topside support structures; mounted to a topside support structure from above, along the entire length thereof and in an articulated manner, is a movable upper support structure configured to be positionable in a folded state transverse to the topside support structure such as to extend over the deck and to be positionable in an unfolded state along the topside support structure such as to be coplanar therewith and to form an upper extension thereof; and mounted to the outer side of each of the topside support structures and the upper support structures are display screens capable of accommodating an informational image, wherein the display screens on the upper support structures are configured to be capable of increasing the surface area of the broadcast image when in an unfolded state and of displaying the broadcast image into the upper hemisphere when in a folded state with the aid of advertising and entertainment content broadcasting systems.

The invention discloses a high-reliability digital broadcasting system and an abnormal fast continuous broadcasting method, and relates to the technical field of communication technology and emergency broadcasting, and the high-reliability digital broadcasting system comprises a server A, a server B, broadcasting terminal equipment and a server abnormity recovery module, the server A is provided with two redis sentry nodes, and the server B is provided with one redis sentry node; the server exception recovery module is used for switching the broadcast and quickly continuing the broadcast when the server is exceptional; when a server is started, a redis monitoring sub-process is started, and the redis monitoring sub-process performs fault transfer and master and slave node adjustment according to a local state when a master node is offline by checking the local state, the master node state and redis sentinel node information. According to the invention, when the server is abnormal, the broadcast task which is being executed can be continuously executed within one second, so that the continuous playing efficiency is greatly improved; according to the method, the redis sentry cluster is deployed by using the two servers, so that the number of the servers can be reduced, and the cost is effectively reduced.

The invention relates to a mining personnel positioning and emergency broadcasting method, and belongs to the field of underground coal mine positioning communication. In order to solve the problems of high cost and slow response caused by discrete deployment of a traditional positioning and broadcasting system, the invention provides a technical scheme of fusing dual systems: an industrial Ethernet is connected with an upper computer, a card reader and an identification card, and the upper computer is integrated with a positioning and broadcasting control module; the card reader is internally provided with a dormant state frequency modulation transmitter, receives an instruction to activate and converts voice data into a frequency modulation signal in an emergency; and a power-off frequency modulation receiver is arranged in the identification card and is started and broadcasted after receiving the instruction. According to the invention, the device reuse rate is 70%, the deployment cost is reduced by 50%, the positioning precision reaches 0.3 m, the broadcast end-to-end delay is less than 200 milliseconds, and the underground safety communication efficiency is effectively improved.

To perform appropriate audio reproduction depending on the receiver's capabilities.SOLUTION: A receiver that receives broadcasting that includes MPEG-H audio in an audio component obtains identification information indicating whether the MPEG-H audio is present from broadcast airwaves at a multiplexing layer, and selects the audio component according to the receiver's capabilities on the basis of the identification information, and decodes the audio data of the selected audio component.SELECTED DRAWING: Figure 15