120 results about "Broadcast time" patented technology

The invention relates to a time slot allocation method and device of a dynamic TDMA protocol and a storage medium. The method comprises the following steps: carrying out time slot allocation on a network allocation frame in a broadcast time slot according to the priority size of node packet sending, resending a time slot request frame in an arbitration time slot when a certain node applies for sending high-priority data, and after a plurality of nodes send the time slot request frame in the arbitration time slot, sending the time slot request frame in the arbitration time slot. And the main node calculates to obtain an arbitration value corresponding to each node according to the weight corresponding to the priority category of each data to be sent and the weight of the number of frames to be sent, and inserts the new time slot allocation table into the next stage according to the arbitration values from large to small to continue to send the data. By adopting the method, when temporary high-priority data is inserted, high-priority emergencies can be responded in time.

The invention discloses a GNSS (Global Navigation Satellite System) precision satellite clock error correction calculation method based on state space representation. The method comprises the following steps of: 1, selecting a data segment of 10 epochs as a fitting object, thereby effectively reducing the calculation amount, improving the speed of real-time calculation and ensuring the high efficiency and accuracy of clock correction correction fitting; 2, deducting the average value of the respective system clock correction of the current epoch according to the clock correction data of each epoch; 3, recovering the satellite clock error after the broadcast time is delayed for 5 seconds by adopting the SSR data before and after the detection, and carrying out secondary difference comparison on the clock error data after the gross error detection and the original clock error data; 4, the real-time precision clock error is recovered through the generated SSR information; and step 5, after the data of the real-time data stream received by the BNC is stored, real-time imitated clock error estimation is carried out. Compared with the prior art, the method has the advantages that high-precision positioning can be kept, and meanwhile the stability and performance of a positioning system are further improved.

The invention provides a satellite phased array wave beam scanning application method, which comprises the following steps that: in a broadcast time slot, phased array transmitting wave beams cover wave positions one by one according to a scanning pattern, and when the wave positions of satellite terminals are covered, the satellite terminals receive satellite-ground announcements; the satellite terminal scans the pattern information according to the common control channel resources and the scanning pattern information in the satellite-ground announcement; carrying out random access in the common control time slot; and after the access is successful, allocating a service beam, and dynamically generating a scanning pattern of a service time slot and a time slot allocation plan during a beam position residence period according to the position information and service requirements of the satellite terminal, thereby meeting communication requirements. According to the method provided by the invention, through fine division and dynamic allocation of time slot resources and in combination with the design of a phased array scanning strategy, wide-area concurrent service, random access and on-demand coverage of a satellite to a plurality of ground terminals are realized, and efficient utilization of phased array beam resources is ensured.

The invention relates to an intelligent emergency broadcast safe broadcast monitoring controller, which belongs to the technical field of emergency broadcast monitoring and comprises an emergency broadcast scheduling platform and a broadcast time plan management module. The emergency broadcast scheduling platform comprises a data acquisition module, a broadcast scheme monitoring and analysis module, a real-time audio stream monitoring and analysis module and an intelligent visual monitoring terminal management module, and the emergency broadcast scheduling platform is connected with a visual intelligent monitoring and control terminal. According to the intelligent emergency broadcast safe broadcast monitoring controller, broadcast task data, audio stream metadata of the IP broadcast microphone and equipment operation logs are integrated through the data acquisition module to carry out multi-dimensional dynamic monitoring on broadcast tasks, and if a certain broadcast task is triggered in an abnormal time period and the audio stream contains unauthorized content, the broadcast task is not triggered in the abnormal time period. The system can mark time violation and content abnormity at the same time and accurately position composite risks, so that the abnormity identification accuracy can be effectively improved, and the false report and missing report rate can be reduced.

A system and process for coordinating streaming content or messages is provided. A network-connected server maintains a database containing media content-related data, such as the text of a message, accompanying media, time of airing, payment, and related comments. A user can view these feeds or streams of these consciousness messages by downloading a mobile application or browsing to a website. The application can also be used to create, schedule, and pay for a media content message.

The invention discloses an intelligent anchor user data processing method, system and device and a medium. The method comprises the steps that a performance assessment score strategy is generated according to a performance target setting instruction; collecting whole live broadcast data in real time; obtaining anchor time period assessment data corresponding to each anchor through the whole live broadcast data, an anchor actual live broadcast time period set obtained based on anchor user information, the whole live broadcast data and a face recognition model, and a forbidden word time point set obtained based on forbidden word information, the whole live broadcast data and a voice recognition model; if an anchor performance assessment instruction is received, anchor time period assessment data corresponding to each anchor is obtained according to an assessment period, and an anchor performance assessment data set is obtained; and obtaining a performance assessment result corresponding to each anchor according to the performance assessment score strategy and the anchor performance assessment data set. According to the invention, the live broadcast process data of each anchor can be quickly, accurately and automatically acquired and processed, and the data processing efficiency is improved.

The invention provides an interaction method and device in a virtual space, electronic equipment and a storage medium, and belongs to the technical field of multimedia. The method comprises the following steps: in a virtual space of a first anchor object, displaying the first anchor object and a second anchor object participating in a target live broadcast event, and the score of each anchor object in the target live broadcast event; in response to a target interaction behavior appearing in the virtual space, the target interaction behavior is displayed in the virtual space, and the target interaction behavior is used for reducing the score of the second anchor object; and if the live broadcast time is within a preset time period corresponding to the target live broadcast event, displaying a target display event in the virtual space on the basis of displaying the target interactive behavior, the target display event being used for representing that the atmosphere of the target live broadcast event changes. According to the technical scheme, the interaction efficiency between the anchor object and the audience object and the man-machine interaction efficiency can be improved.

According to the intelligent set top box and the live broadcast delay reduction method provided by the invention, the HLS data of the live broadcast source after channel switching is obtained in response to the channel switching instruction; the HLS data comprises an index file, and the index file records downloading addresses and playing durations corresponding to a plurality of data files. And analyzing to obtain the playing duration and the downloading duration corresponding to each data file in the first index file. And then determining a first data file meeting the playing condition from back to front according to the to-be-played sequence of the plurality of data files, and taking the first data file meeting the playing condition as a target data file. And then playing is started from the target data file, and each data file after the target data file is cached, so that the live broadcast fluency is ensured. According to the method and the device, the target data file is found from back to front according to the to-be-played sequential storage of the plurality of data files, so that the first broadcast position is closer to the live broadcast time after channel switching, and the live broadcast delay is reduced.

The invention relates to the technical field of communication, in particular to a time calibration method, device and system.A data management system issues the same broadcast time calibration command to devices to be calibrated in different time zones, and the broadcast time calibration command comprises local current time and time deviation parameters of the data management system; the to-be-calibrated devices located in different time zones obtain the calibrated time of the to-be-calibrated devices according to the local current time and the time deviation parameter of the data management system and the local time zone parameter of the to-be-calibrated devices, the data management system does not need to store correct time zone information of the to-be-calibrated devices in advance, the time calibration efficiency is greatly improved, and the time calibration cost is reduced. And meanwhile, the time management complexity of the data management system on each piece of to-be-calibrated equipment is reduced.

The invention relates to the technical field of wireless communication synchronization and gate valve action collaboration, in particular to a multichannel audio master-slave sound role intelligent conversion system and method.A master control unit broadcasts a time calibration packet to synchronize unit clocks, and an automatic calibration protocol is executed to generate an inherent processing delay baseline value; the subordinate gate valve unit records an instruction receiving and action completion timestamp through a delay detection module, calculates actual delay containing wireless transmission and local processing delay, and packages the actual delay into a structured feedback data packet for real-time feedback; a dynamic adjustment module of the main control unit filters noise through a weighted moving average algorithm, and calculates individual compensation delay parameters in combination with the dynamic buffer compensation amount of the environment interference monitoring module and delay trend prediction of an adaptive learning engine; and when abnormity occurs, historical data is called for replacement and self-inspection is triggered, an instruction distribution time sequence is adjusted according to compensation parameters, a gate valve action execution confirmation module verifies the displacement precision, and the fluid control precision and stability are improved.

The invention discloses a 2.4 G-based RSSI (Received Signal Strength Indicator) positioning data relay transmission device and method, and belongs to the technical field of wireless communication. The device comprises a positioning label, a positioning gateway, a relay gateway and a public network gateway. The positioning tag broadcasts a 2.4 G signal containing the ID of the positioning tag; the positioning gateway scans the 2.4 G signal, and generates and broadcasts a data packet in which a positioning gateway address, a data packet number, a relay level and aggregated data are packaged; a relay gateway is switched to a low-power-consumption mode after initialization through a monitoring-learning-synchronization mechanism, wakes up and receives data in a broadcast time window of an upstream gateway of the relay gateway, updates a relay level and forwards the data to a downstream gateway, and therefore multi-hop relay transmission of the data is achieved. And the public network gateway finally uploads the data to a cloud platform or an upper computer. According to the invention, through data aggregation and time synchronization dormancy, the system power consumption is greatly reduced, and long-distance and long-endurance positioning data transmission of battery power supply in a complex environment is realized.

The application discloses an implementation method suitable for a high-throughput satellite communication hybrid duplex system, which acquires double-network statistical basic data containing end station round-trip propagation delay distribution and phased array antenna transmission-reception switching characteristics; constructs a dual-coupling time planning mathematical model with original network and mirror network time window start and end time as optimization variables, and solves optimal time parameters under the conditions of satisfying physical constraints such as delay reachability, antenna switching safety and main station reception zero overlap; and the main station broadcasts time slot configuration instructions to cooperatively control all network end stations to perform hybrid duplex transmission-reception. The application also introduces a closed-loop feedback mechanism based on end station local observation, estimates delay drift by using network clock reference information, and corrects model input. The application realizes zero conflict hybrid duplex communication under complex physical constraints by converting static configuration into dynamic mathematical optimization solution, and improves satellite spectrum resource utilization rate and system operation stability.

The present invention relates to a collision-free connection method and system for large-scale low-power Bluetooth devices, and relates to the field of connection control of large-scale low-power Bluetooth devices. For all low-power Bluetooth slave devices, when the predetermined fixed broadcast time interval arrives, the random delay time generation algorithm calculates the target random delay time for itself by using the parameters generated by the offline dynamic parameter generation library; each low-power Bluetooth slave device starts broadcasting to attempt to establish a connection with the Bluetooth gateway after the target random delay time, and disconnects the connection after successfully interacting with data and enters the low-power mode; the low-power Bluetooth slave device repeats the next round of broadcasting and data transmission according to the preset time period. The randomization of the broadcast start time in this application greatly reduces the communication collision risk generated when multiple low-power Bluetooth slave devices attempt to connect to the Bluetooth gateway at the same time, ensuring that even in a high-density device network environment, an efficient connection process can be maintained.

The application discloses a channel distribution scheduling management method and system for IPTV live broadcast service, relates to the technical field of IT and software development, and aims to solve the problem that IPTV live broadcast service application mainly includes different application scenarios such as live broadcast unicast, live broadcast time shift, live broadcast review, and the number of access channels based on different province live broadcast sources is more than 300 channels, and the number of channels is relatively large, so that higher requirements are needed for storage system capacity, read-write IO ability and program saving redundancy security strategy, technical solution points are as follows: S1: intelligent channel distribution management, live broadcast cache flow service nodes realize multi-node channel access distribution management based on an intelligent channel distribution management mechanism, S2: accurate scheduling of terminal service request, accurate scheduling redirection mechanism is combined with different node associated different channel list configuration, and it is guaranteed that terminal request supports hotspot channel service service direct response to any live broadcast cache flow service node. The effect of reducing end-to-end network data transmission and reducing transmission delay is achieved.

The embodiments of the present invention provide a positioning method, device, electronic device and computer storage medium. The positioning method includes: obtaining the target estimated position of the target object and the code phase measurement data in the satellite signals of three positioning satellites received by the target object; determining the pseudo-range sub-millisecond part of the three positioning satellites according to the code phase measurement data; estimating the broadcast time of the three positioning satellites according to the ephemeris of the three positioning satellites, the pseudo-range sub-millisecond part, the target estimated position of the target object, and the reception time of the received satellite signal; determining the road point closest to the target object as the positioning position of the target object according to the ephemeris of the three positioning satellites and the estimated broadcast time and reception time of the satellite signal, and the longitude and latitude of multiple road points included in the path where the target object is located. The positioning method can use fewer satellites for positioning when the satellite signal is poor.

A responder user equipment (UE) in separate ranging sessions may determine whether there is a collision between the ranging signals assigned to broadcast in the separate ranging sessions. A collision in the ranging signals is detected when the ranging signals have the same frequencies and broadcast times, e.g., the broadcast time of one ranging signal is within a predetermined amount of time for the other ranging signal. When a collision in the ranging signals is detected, the responder UE sends a message to the initiator UE indicating the possibility of a collision. Available times for broadcasting the ranging signals may be determined, e.g., by the responder UE or the initiator UE. The initiator UE may initiate a new ranging session based on the available times for broadcasting the ranging signal or may proceed with the ranging session with the possibility that the responder UE will not participate.

A request, from an end user device associated with a user, for supplemental media is received. Based on the request, metadata and a broadcast time associated with a primary media stream transmitted to the end user device is determined. Based on the metadata and the broadcast time, supplemental media from an account of the user on a platform is retrieved. A supplemental media stream, that includes the supplemental media, is sent in synchronization with the primary media stream.

The application discloses a Wi-Fi network access method and device, communication equipment and a readable storage medium, and belongs to the technical field of communication. The method can comprise: a target Wi-Fi access point sending M Wi-Fi information under the condition of meeting a target condition, each Wi-Fi information being used for indicating one Wi-Fi type supported by the target Wi-Fi access point, and M being an integer greater than or equal to 2; wherein under the condition that M Wi-Fi types indicated by the M Wi-Fi information include a Wi-Fi type supported by a first electronic device, the first electronic device is connected with the target Wi-Fi access point, and the first electronic device is an electronic device receiving the M Wi-Fi information; the target condition meeting any one of the following: reaching a target broadcast time of the target Wi-Fi access point, and the target Wi-Fi access point receiving a target Wi-Fi detection request from the first electronic device.

This application provides a surface logging system, a network clock synchronization method, and electronic equipment, belonging to the field of petroleum logging technology. The method includes: periodically broadcasting time synchronization protocol data packets based on a clock server; synchronizing the current operating time of the depth tension display panel and the current operating time in the logging data uploaded by the first type of logging instrument to the logging network as the system reference time, based on the depth tension display panel and the first type of logging instrument; periodically broadcasting time synchronization protocol data packets to the logging network using a time synchronization protocol; receiving the time synchronization protocol data packets based on a second type of logging instrument and synchronizing the current operating time in the logging data uploaded by the second type of logging instrument to the logging network as the system reference time; or synchronizing the current operating time of the second type of logging instrument with the operating time of the depth tension display panel based on the depth tension display panel. This application's solution can realize logging operations in all logging scenarios.

The application discloses a 5G video stream edge intelligent regulation and control system with adaptive code rate, relates to the technical field of edge video regulation and control technology, and comprises a global snapshot modeling module, a hierarchical cache arrangement module, a version closed-loop correction module and an experience constraint distribution module. The snapshot module collects link observation, edge resource margin, terminal session state and interactive event count, calculates a rate matrix and a time delay matrix, decomposes a propagation item and a transcoding item of end-to-end live broadcast time delay, and encapsulates a state snapshot. The cache arrangement module analyzes hierarchical requests, divides shared layers and non-shared layers, generates a cache plan, a scheduling plan and a code rate version table under the constraints of capacity, availability and inter-layer dependency, and executes hierarchical fallback synchronous correction of code rate when resources are insufficient. The closed-loop correction module completes unique distribution of terminals to edge servers and corrects code rate under the constraints of bandwidth and computing power. The experience constraint distribution module executes hard check, conflict positioning, minimum disturbance incremental replacement and versioned rollback output.

The invention discloses an emergency broadcast system scheduling control scheme generation method, which relates to the technical field of emergency broadcast intelligent scheduling, and comprises the following steps: collecting a multi-source emergency event information data stream, and generating a unified event description record containing a global unique identifier, a quantitative influence level and an accurate geographical range through space-time correlation analysis and data fusion. The resource demand is calculated based on the record, and a scheduling conflict detection and optimization algorithm is utilized to generate a plurality of alternative schemes consisting of a terminal activation sequence, channel allocation mapping and broadcast time window arrangement in combination with a real-time resource state. And screening out an optimal scheduling scheme through the evaluation model and converting the optimal scheduling scheme into an executable instruction sequence. According to the method, the accurate integration of the emergency event information from heterogeneous to unified is realized, and the conflict problem in resource scheduling is solved through multi-scheme optimization decision, so that the automation level and the resource allocation efficiency of the emergency broadcast system in response to complex events are improved.

Provided is a system for time synchronization between a server and an Internet-of-Things (IoT) device. The system may include a server configured to broadcast a time-point synchronization signal including absolute time point information; and an IoT device configured to receive the broadcast time-point synchronization signal and calculate absolute time point information by using the absolute time point information included in the time-point synchronization signal, computation time information according to an internal computation operation, and transmission time information required to receive the time-point synchronization signal.

The invention provides a low-power-consumption working method and system based on a wireless HART (Highway Addressable Remote Transducer) wireless temperature transmitter. The low-power-consumption working method comprises the steps that S1, a main communication unit is responsible for protocol stack and data processing, a coprocessor manages RTC (Real Time Clock) awakening and power gating, and zero static power consumption in a non-communication time period is realized through partitioned power supply; s2, the coprocessor obtains a TDMA scheduling table from the main unit; s3, comparing the threshold value of the local temperature data delta T, and triggering reporting only when the threshold value exceeds the limit; rSSI / SNR is dynamically evaluated, a non-key broadcast time slot is intelligently skipped, and deep dormancy in a stable period is realized; and S4, the equipment reports an energy state through a Join Request and a health report, the network manager allocates relay tasks by adopting an energy weighting algorithm, and if the electric quantity of the battery node is lower than a threshold value, a terminal mode can be entered. And S5, the LSTM predicts the node electric quantity and the network load, reinforcement learning dynamically adjusts the TDMA scheduling and routing strategy, and active prediction maintenance and whole network energy balance are realized.

The invention discloses a node synchronization method for a wireless ad hoc network and a communication node. The node synchronization method comprises the following steps: searching a frame synchronization signal according to a preset mode; in response to the searched frame synchronization signal sent by the temporary synchronization node, receiving a broadcast message sent by the temporary synchronization node; judging whether the temporary synchronization node is a father node of the temporary synchronization node based on the network configuration information; in response to the fact that the temporary synchronization node is not the father node of the temporary synchronization node, determining a channel used by the father node of the temporary synchronization node for sending a broadcast time slot based on the network configuration information; and searching a frame synchronization signal on a channel used by the parent node for sending the broadcast time slot, and receiving a corresponding broadcast message after the frame synchronization signal is searched until the sending node of the broadcast message is determined to be the parent node of the parent node or an exit condition is met. By using the method, the node can be quickly synchronized to the specified father node, so that the network connection can be quickly established, and the stability of the wireless ad hoc network connection is improved.

A method of and system for handling latency issues encountered in producing real-time entertainment such as games of skill synchronized with live or taped televised events is described herein. There are multiple situations that are dealt with regarding latencies in receiving a television signal with respect to real-time entertainment based on the unfolding games played along with the telecasts. Systemic delays, arbitrarily imposed delays of a broadcast signal and variances in the precise broadcast times of taped television programs have to be equalized so as to provide fair entertainment.

The invention provides a tag inventory method and device and electronic equipment, and relates to the technical field of wireless, and the method comprises the steps that a reader-writer sends a first message; under the condition that the N response messages received by the reader-writer collide, the reader-writer sends a second message to the N tags; under the condition that the label number of the returned response message is one, the reader-writer backtracks an interference response message which is closest to the first response message of the target label and contains a second response message of the target label, and performs interference elimination on the interference response message according to the first response message to obtain a residual response message; and the reader-writer performs inventory on the first tag and the tag corresponding to the residual response message. According to the method and the device, the response result of the multiple tags is backtracked, and interference elimination is performed on the response result of the multiple tags according to the response result of the single tag, so that the residual response message is decoded, the broadcasting frequency of a reader-writer is reduced, and the inventory efficiency of the tags can be improved.

In the embodiments of the present application, a material detection method, apparatus, computer equipment and readable storage medium are provided, including: first, according to the received material quality inspection task, material information corresponding to the material quality inspection task is obtained from the broadcast database, and the material to be inspected corresponding to the material quality inspection task is obtained from the material storage unit; then, the material to be inspected is quality inspected to obtain a first quality inspection result; then, the first quality inspection result is sent to the broadcast database, so that the review quality inspection unit performs manual quality inspection on the material to be inspected based on the first quality inspection result to obtain a second quality inspection result; when the first quality inspection result is an abnormal quality inspection result, a material detection result is generated according to the first-opening personnel marking information, the second quality inspection result and the broadcast time of the material to be inspected. Such a design ensures the combined use of automatic quality inspection results and manual quality inspection results, thereby improving the quality safety of the material to be inspected.

A method for managing the access, by a reader device, to a multimedia content. The method includes, for the same content: acquiring a set of multicast broadcast channels associated with respective broadcast times spaced out over time, requesting rendering of data representative of multicast channels obtained during the acquiring, and receiving a selection of one multicast broadcast channel from amongst the broadcast channels included in the rendering request.

Embodiments of the present disclosure provide a live-streaming processing method and apparatus, where the live-streaming processing method includes: using a virtual character to live-stream in a live-streaming room and acquiring a live-streaming setting parameter of the live-streaming room, where the live-streaming setting parameter includes an intelligent broadcast time interval corresponding to an intelligent play mode; determining a scene type to be played corresponding to the intelligent play mode in a case that it is determined that a current clive-streaming time reaches a starting time point of the intelligent broadcast time interval; acquiring a material to be played corresponding to the scene type to be played from a preset resource pool, determining data to be played of the intelligent play mode based on the material to be played; and controlling the virtual character to live-stream for the data to be played in the live-streaming room.

The invention relates to a live broadcast video processing method and device, electronic equipment and a storage medium, and the method comprises the steps: obtaining an original live broadcast video clip and a target presentation special effect material of a target live broadcast room in a target live broadcast time period corresponding to a live broadcast clip generation instruction in response to the live broadcast clip generation instruction corresponding to the target live broadcast room, the target presentation special effect material is a presentation special effect material corresponding to a target virtual article presented by a live broadcast browsing object in the target live broadcast room in a target live broadcast time period; generating a target live video clip based on the original live video clip and the target presentation special effect material; and releasing the target live video clip to a target account corresponding to the target live room. According to the embodiment of the invention, the content richness and expansibility of the published live broadcast video clip can be improved, the published live broadcast video clip can effectively reflect the real situation of the live broadcast room, the quality of the published live broadcast video clip is improved, and the recommendation effect and recommendation efficiency of the live broadcast room can be improved.