1571 results about "Broadcasting" patented technology

The invention relates to the technical field of data processing, and discloses a PTP network performance monitoring method and system based on big data analysis, and a medium. The method comprises the following steps: acquiring PTP message data, equipment state data and RTP stream data; preprocessing the data and calculating a clock error; constructing a time sequence database and an analysis model; real-time monitoring and anomaly detection are executed; performing performance scoring and fault positioning by applying machine learning; and carrying out network optimization and predictive maintenance. According to the PTP network performance monitoring method based on big data analysis, global state monitoring, intelligent anomaly detection, accurate fault positioning and predictive maintenance of the PTP network are achieved, and therefore the high-precision time synchronization requirement of a broadcast and television IP making and broadcasting system is guaranteed.

The invention provides an HPLC (High Performance Liquid Chromatography) station area cooperative communication method based on clock synchronization, which comprises the following steps: step 1, multi-dimensional data acquisition and broadcasting: each concentrator periodically acquires clock precision, stability and reliability data, and sends a beacon frame containing a timestamp and a health degree score through a power line carrier broadcasting channel; step 2, dynamically calculating the index distinction degree by using an entropy weight method, adaptively allocating weights, and electing an optimal main CCO in real time; step 3, dual-mode PID cooperative control: the main CCO adopts a dual-mode switching strategy of a dynamic PID algorithm and a chaotic fractional order PID algorithm; 4, monitoring a synchronization state in real time by constructing a clock check network, and optimizing a fault isolation strategy in combination with weighted scoring to realize that the state switching time of the master node and the slave node is less than or equal to 50ms; cooperative communication is realized on the basis of completing synchronization of the concentrators CCO in the whole network. Redundant message transmission is reduced through a dynamic parameter resynchronization mechanism, and the utilization rate of network resources is optimized.

The invention discloses a construction site safety monitoring method and system based on a large model and RAG, and the method comprises the steps: carrying out the intelligent analysis of real-time video data of a construction region based on a visual large model, and recognizing the behavior safety, violation operation, dangerous facilities and environment risks of construction personnel; adding a time label to the analyzed security event text to form a construction site security event log; reasoning and analyzing the security event log, determining whether security early warning is generated or not, and pushing early warning information; carrying out on-site intelligent voice broadcasting according to the early warning information; through a multi-RAG architecture, a construction site safety log database, a public construction safety management database and an enterprise internal safety management database are constructed, and construction safety information is stored by using a vector database and a graph database. By adopting the technical scheme of the invention, the problems of insufficient real-time monitoring capability, limited intelligent analysis capability and lack of effective knowledge base support in the existing construction site safety supervision are solved.

A method of controlling a broadcast receiver and which includes displaying a broadcast program on a screen of the broadcast receiver, determining if a broadcast-related information enlargement mode is selected, and enlarging the broadcast-related information on the screen of the broadcast receiver when the determining step determines the broadcast-related information enlargement mode is selected.

The invention discloses a communication method and system based on a wireless ad hoc network technology, and belongs to the technical field of wireless communication, and the method comprises the steps: obtaining the multi-dimensional state information of a local node, and generating a node state beacon for broadcasting; receiving a node state beacon from a neighbor node; calculating a stability index of a link connected to the neighbor node; calculating the transmission energy efficiency cost of the link; a total path security performance score is calculated for each candidate path in the network. According to the method, the multi-dimensional state information is introduced, the decision basis is more comprehensive, the relative motion trend of the nodes can be evaluated by calculating the motion velocity vector, so that the stability of the link is pre-judged instead of passively responding after the link is interrupted, and the problem of frequent change of the network topology is effectively solved.

The invention particularly relates to an emergency broadcast intelligent early warning system applied to disaster prevention and reduction, and relates to the technical field of communication. The redundant communication and self-adaptive switching module is configured to establish a multi-mode communication network, monitor link states in real time and realize intelligent switching and load balancing of communication links based on a dynamic algorithm; an intelligent decision-making and precise broadcasting module; and the emergency broadcast terminal is connected with the offline execution module. According to the invention, a multi-mode communication architecture is established, each link monitors parameters such as signal strength, delay, packet loss rate and the like in real time, and intelligent switching and load balancing are carried out through a dynamic routing algorithm; and meanwhile, on the basis of memory thermal characteristic analysis, link faults are pre-judged in advance, switching is triggered, the success rate of early warning information transmission under extreme disasters is ensured, and the problem of transmission interruption of traditional single link communication under the scenes of power failure, base station damage and the like is solved.

The invention belongs to the technical field of artificial intelligence and multimedia processing, and discloses a multi-modal content conflict resolution method based on modal time sequence dependence modeling, which comprises the following steps of: constructing a modal representation vector by unifying time, space, semantics and priority information of modeling modal contents; and further structuring and quantifying complex dependency and conflict relationships among different modal contents by utilizing a modal time sequence dependency graph, and constructing a context relationship by combining a graph neural network, so that the system can identify conflicts of the contents in time, space and semantic levels, and realizes self-adaptive content reordering and display configuration based on conflict scores. According to the method, the limitation of traditional single-dimension conflict detection is overcome, the accuracy rate and the coverage range of conflict identification are improved, the method can be widely applied to multi-modal content-intensive scenes such as intelligent media generation, AI broadcasting, virtual navigation and XR interaction, information shielding and semantic redundancy are reduced, and the interaction experience of users and the system content quality are enhanced.

The invention discloses a wind and light storage and charging micro-grid distribution optimization method and system. The method comprises the following steps: acquiring parameter data of each node in a micro-grid in real time; constructing a load demand prediction model, and automatically adjusting the scheduling weight coefficient of the wind and light storage and charging equipment according to the weather type; based on a model output result, establishing a matching relationship between the line impedance and the load emergency degree, generating a power supply path set, and creating a power path selection mechanism based on a dynamic planning algorithm; calculating real-time charge-discharge efficiency based on the equivalent resistance parameter of the power supply path, and dynamically adjusting a charge-discharge rate threshold according to a prediction error; acquiring a real-time monitoring load curve, calculating the similarity between the load curve and historical data, and matching and identifying a potential sudden change risk; and according to a distributed negotiation protocol, each node achieves a scheduling consensus through a priority broadcasting mechanism. The method has the advantages that through load prediction and dynamic scheduling, optimal scheduling, power fluctuation stabilization and sudden change risk identification of the wind and light storage and charging equipment are realized.

The invention relates to the technical field of energy system control, and discloses a distributed cooperative fault-tolerant control method for a multi-energy-station cooling and heating system, and the method comprises the steps: enabling each energy station to measure and calculate a residual error based on a physical model and a sensor, forming a normalized health index, and carrying out the neighborhood broadcasting; carrying out robust anomaly judgment by utilizing a neighborhood median and a median absolute deviation, and isolating an abnormal site; cost coefficients are automatically generated for available sites according to equipment maneuverability, and control redistribution of minimum disturbance is solved and implemented through distributed consistency optimization; an exponential weighting updating mechanism of a residual error sequence is adopted to carry out online self-adaption on a noise baseline and a judgment threshold value so as to realize closed-loop self-calibration; when sensor abnormity, equipment errors or individual station faults occur in the multiple energy stations which work cooperatively, distributed rapid identification is achieved, faults are isolated, energy supply is redistributed with minimum disturbance, system control requirements are met, and equipment safety constraints are kept.

The invention discloses a broadcast television network security operation method and system based on a large model, and the method comprises the steps: collecting log, network flow and terminal behavior data in real time, storing the data in a Kafka message queue, receiving the data through an AI intelligent noise reduction module, extracting alarm text semantic features through an XLM-ROBERTa model, and carrying out the noise filtering through combining with a multi-classification model, thereby obtaining high-value data; inputting the high-value data and security document knowledge corresponding to the network threat intelligence into an RAG knowledge base module, generating enhanced context information data through knowledge extraction, vectorization storage and similarity retrieval, inputting the enhanced context information data into a cue word of a reply model, and outputting a first threat analysis reply; inputting the high-value data and the first threat analysis reply into a multi-model MOE architecture, distributing tasks through a gating network, integrating expert network output results, and generating a second threat analysis reply and a corresponding attack thermodynamic diagram; and executing feedback optimization operation of the corresponding module based on the second threat analysis reply, thereby improving the safety operation efficiency of the broadcast television network.

The invention relates to a multi-modal virtual human real-time generation method based on an expression control embedding space, and belongs to the field of artificial intelligence. According to the method, an expression control embedding space is constructed and used for fusing voice semantics, a rhythm structure and multi-dimensional emotion information, and continuous and controllable multi-modal driving vectors are generated. The whole system has an end-to-end linkage mechanism from audio input to expression and action output. Semantic features, rhythm structures and emotional states jointly act on generation paths of lip and upper body postures and expression modalities, and all modal features are fused and expressed in a unified control space through a collaborative coding and time sequence alignment mechanism. And finally, a high-consistency and high-fidelity virtual human video is generated in real time through an output scheduling mechanism. The method has remarkable advantages in the aspects of modal fusion consistency, generation expression naturalness and emotion control flexibility, and can be widely applied to key scenes such as virtual human broadcasting, voice interaction agency and meta-universe digital identity construction.

The invention discloses a method, a system and equipment for voice interaction inside and outside a vehicle and a storage medium, and relates to the technical field of intelligent cabins and human-computer interaction. Identifying an interaction trigger type (in-vehicle active request, out-of-vehicle passive request, or system active trigger) based on the perceived data and / or the vehicle event; determining a corresponding response permission strategy according to the trigger type, and determining whether to allow the system to respond based on the response permission strategy; and if so, calling a large language model to generate a voice text, synthesizing voice by combining external perception characteristics, and broadcasting the voice through a loudspeaker outside the vehicle or a sound box in the vehicle. According to the scheme, three types of interaction intentions including the in-vehicle active request, the out-vehicle passive request or the system active triggering are recognized, the large language model is called to generate the scene-adaptive voice text, and personalized voice synthesis and broadcasting are performed in combination with the external perception characteristics, so that the response efficiency, the expression naturalness and the object adaptability of the in-vehicle and out-vehicle voice interaction are improved.

The invention relates to a method and device for configuring a Bluetooth Mesh network through Bluetooth broadcast. The method comprises the following steps: receiving Bluetooth distribution network broadcast information; according to a first matching result of the message label and the cache information, determining a processing state of the Bluetooth network distribution broadcast information by the equipment to be subjected to network distribution; if the first matching result shows that the broadcast information is not processed, determining a matching relationship between the to-be-distributed network equipment and the target to-be-distributed network equipment according to a second matching result of the target address information and the address information of the to-be-distributed network equipment; if the second matching result shows that the two are matched, accessing the to-be-distributed network equipment to the network based on the broadcast information; and if the second matching result shows that the two devices are not matched, updating the message forwarding mark to obtain the updated broadcast message and forwarding the updated broadcast message to the next device until the target device to be subjected to network configuration is obtained through matching within the dynamic message distance determined based on the message forwarding mark and is accessed to the network. By adopting the method, the network distribution efficiency can be improved, and the resource redundancy in the network distribution process can be reduced.

The invention discloses a talkback method and system based on label door lock cooperation, and the method comprises the steps: broadcasting door lock binding information: obtaining a broadcasting result of the door lock binding information according to the fact that a door lock A detects that a Bluetooth label Tag-DID carried by an owner a leaves a communication range; neighbor door lock state detection: sending an empty query request according to a call button of a Bluetooth tag pressed by an owner a, and obtaining a response result of an idle door lock; door lock selection and call establishment: selecting a door lock ID displayed on a display screen of a door lock Z according to the owner a, extracting the cached IP by the door lock Z and initiating a call request to the door lock A by the door lock Z to obtain an establishment result of call connection between the door locks; and voice communication and switching management: realizing voice communication between the door lock Z and the door lock A according to the established call connection, and obtaining a cross-door-lock voice communication switching result. By utilizing the embodiment of the invention, the cooperative work capability between the door locks can be improved, and the communication experience of a user in an intelligent home environment is optimized.

The invention discloses an electronic contract signing method based on block chain evidence storage, and particularly relates to the technical field of electronic evidence preservation and intelligent contracts. Obtaining original data of the electronic contract and generating a hash abstract; setting a plurality of candidate block chain networks as evidence storage target chains; the transaction density index and the network propagation lag degree of each chain are collected in real time; inputting the parameters into a risk scoring model, and calculating a comprehensive risk score; executing a strategic broadcast operation according to a scoring result; monitoring a transaction confirmation state, and selecting a first block chain reaching a set confirmation number as a main storage certificate chain; when the evidence storage fails, under-chain supplementary evidence storage or re-broadcasting is triggered; according to the method, the chain state can be dynamically sensed, the optimal evidence storage path can be adaptively selected, the uplink success rate and the legal efficacy of the electronic contract are effectively improved, and the method has high disaster tolerance and cross-chain applicability and is suitable for scenes such as judicial, finance and government affairs with high evidence reliability requirements.

The invention discloses an AR glasses blogger live video anti-shake processing method and processing system, and the method specifically comprises the steps: carrying out the calculation based on an original video stream and equipment motion data, and generating a preliminary stable frame sequence; based on the preliminary stable frame sequence, marking a key semantic region as a strong stability demand region, and segmenting a foreground main body and a background region; performing fine stabilization on the strong stability demand area and the foreground main body by applying non-rigid transformation, performing stabilization on the background area by applying rigid transformation and retaining the depth of the scene, and obtaining a frame sequence after partition correction; predicting a future multi-frame equipment motion track based on the frame sequence after partition correction, the equipment motion data and the segmentation information of the foreground main body / background region; and calculating and executing prospective canvas motion compensation in advance based on the future multi-frame equipment motion trail and the segmentation information of the foreground main body / background region. According to the invention, efficient anti-shake processing of the live video of the AR glasses is realized, and the stability of the live picture and the user experience are effectively improved.

The invention provides a multi-level wake-up method and system based on a low-power-consumption wake-up protocol, a medium and a product, and relates to the technical field of intelligent voice recognition, and the method comprises the steps: triggering a first-level wake-up code broadcast module to broadcast a target wake-up signal through a target low-power-consumption wake-up protocol by using a received external trigger signal; obtaining a validity verification result obtained after the to-be-awakened device performs validity verification on the received target awakening signal, and determining whether the to-be-awakened device enters a low-power-consumption standby state or not according to the validity verification result; triggering a second-level voiceprint recognition module to monitor a target user in a preset distance range under the condition that the to-be-awakened device is determined to enter the low-power-consumption standby state, so as to collect a voice signal in the preset distance range; and obtaining a voiceprint feature matching result obtained after the second-stage voiceprint recognition module performs voiceprint feature verification on the collected voice signal, and judging whether to activate the to-be-awakened device or not according to the voiceprint feature matching result.

The invention discloses an earthquake early warning device and method based on campus broadcast, and the method comprises the steps: carrying out the building response coupling analysis through receiving an early warning signal of an earthquake monitoring center, generating an earthquake magnitude-building coupling feature, and mapping the earthquake magnitude-building coupling feature into an enhanced early warning source adaptive to an acoustic environment; acoustic cavity detection is carried out based on threatened area identification, and differential playing topology is constructed; extracting a high-risk gathering area through personnel density scanning, generating personalized evacuation guiding content and determining a playing priority; high-precision time sequence control is realized by adopting a synchronous reference anchor point technology, and a multi-mode playing domain is constructed through carrier modulation and frequency division multiplexing; and finally, an acoustic navigation field is utilized to guide accurate scheduling and playing of audio signals, differential playing and accurate coverage of early warning information can be realized according to the anti-seismic characteristics and acoustic environment characteristics of different buildings, and an intelligent acoustic solution is provided for campus earthquake early warning.

The embodiment of the invention discloses a video safety playing method and device based on multi-dimensional protection and a medium, and relates to the technical field of video transmission, and the method comprises the steps: obtaining terminal device information under the triggering of a video playing request of a target playing terminal, performing two-factor authentication on the target broadcast terminal based on the terminal equipment information and terminal registration information pre-stored in a block chain node, and determining an equipment authentication result; collecting a real-time network index of each transmission path through a pre-deployed network probe, and screening a target transmission path from the plurality of transmission paths based on the real-time network indexes; and when the device authentication result is passed, acquiring watermark fragment data corresponding to a target video stream in a pre-constructed block chain node, so as to transmit the watermark fragment data to the target broadcast terminal through the target transmission path, and monitoring the transmission process in real time to realize safe broadcast of the target video stream.

The invention provides a video coding method and device, electronic equipment and a storage medium, relates to the technical field of image processing, in particular to the field of video coding and the like, and can be applied to application scenes such as video live broadcast and the like. The specific implementation scheme is as follows: acquiring a reference frame which is adjacent to a current frame and has established initial ROI hierarchical division; multiplexing a motion vector generated by the reference frame in a motion compensation time domain filtering process, and determining an ROI position predicted value of the current frame; extracting feature points of the five sense organs of the current frame, and correcting an ROI position predicted value based on a feature point spatial topological relation in the initial ROI; respectively configuring differential quantization parameters for the corrected main face region, the corrected secondary face region and the corrected background region; dynamically allocating a three-layer area code rate according to a real-time network bandwidth; and outputting the coded frame of the current frame and the associated ROI level metadata. According to the scheme, the coding efficiency and quality can be improved.

The invention discloses a live broadcast room automatic operation method, system and equipment using an AIGC technology, and relates to the technical field of live broadcast operation, the system comprises a data acquisition unit, an AIGC operation unit, a resource scheduling unit and a terminal display unit, AIGC operation data is monitored through the data acquisition unit, NLP emotion analysis and user behavior modeling are carried out through the AIGC operation unit, and the AIGC operation unit is used for monitoring the AIGC operation data. The user value level is predicted in real time, and an optimal operation recommendation strategy is generated, so that dynamic strategy adjustment is supported, data real-time analysis and decision making are realized, and AIGC-driven automatic content is optimized; the resource scheduling unit is combined with the cost and income model to realize automatic optimal configuration of hardware resources, and the terminal display unit is used for AIGC live broadcast display and multi-terminal interaction optimization, so that the rendering resolution of each terminal is dynamically adjusted, the user experience and the cost control are considered, the service quality is ensured, and the operation cost is reduced.

The invention discloses a voice broadcasting method and device for visually impaired passengers and a storage medium, and relates to the technical field of vehicle-mounted voice broadcasting. The scheme comprises the steps of obtaining environment data of an environment where a target vehicle is located; and generating voice broadcast information according to the environment data by using a large language model so as to introduce the environment of the target vehicle to visually impaired passengers taking the target vehicle. Therefore, the environment data is integrated into the voice broadcast information, so that the visually impaired passenger can know the riding environment based on the voice broadcast content, the visual information gap is filled, the travel control feeling is effectively improved, the unstable emotion caused by information loss is relieved, and the riding experience of the visually impaired passenger is remarkably improved.

The invention discloses a low-altitude security control method based on a block chain, and the method comprises the following steps: collecting flight state data of an aircraft through a data collection layer, generating a Hash value, and storing the Hash value in a Merkle tree structure of the block chain; deploying a management and control rule smart contract through a smart contract layer; when the distance data of the aircrafts on the chain exceeds a threshold value, a control instruction is triggered, an AI model is called to calculate a risk level, and a result is returned to the chain; a plurality of nodes vote to generate a repelling instruction, track deviation is automatically calculated through a management and control rule intelligent contract, and related aircrafts are notified to repel through broadcast; according to the low-altitude security control method based on the block chain, task allocation is optimized through a resource scheduling contract according to the state data of the aircrafts on the chain, historical operation records are traced through a supervisor, and the compliance is verified, and the low-altitude security control method based on the block chain realizes automatic response of data credible storage, multi-party collaborative decision making and intelligent contract driving through the block chain. The problems of data islands, response delay and trust of a traditional system are solved.

A distributed spatio-temporal joint trajectory planning method for an intelligent agent cluster relates to the technical field of robot autonomous control, and comprises the following steps: planning the moving trajectory of each intelligent agent; collision conflict information between any intelligent agent and other intelligent agents in the cluster is detected in sequence, and the collision conflict information is sent to the other intelligent agents through network broadcasting; any agent generates a conflict graph after receiving the collision conflict information; based on the conflict graph, an approximate minimum vertex coverage algorithm is adopted to solve the minimum subset of the agents needing to re-plan the trajectory; re-planning the moving trajectory of the agents in the minimum agent subset at the same time; repeating the steps of collision conflict information detection, conflict graph generation, minimum agent subset construction and moving trajectory re-planning until the number of detected conflict information is zero, and determining the final moving trajectory of each agent; the method is used for solving the problems that traditional space-time coupling processing is poor, expandability is poor, dependence on a front-end path is high, and multi-constraint processing is complex.

The invention discloses a cockpit voice interaction method and device and a storage medium, and belongs to the technical field of vehicle control. The method comprises the steps of collecting sound information of a driver; acquiring a detection result and a control instruction of the elderly driver based on the sound information of the driver, wherein the detection result of the elderly driver is used for indicating whether the driver is an elderly driver; in response to the obtained detection result that the driver is the elderly driver, the vehicle is controlled to start a working mode suitable for the elderly; controlling the vehicle to execute the control instruction; collecting comprehensive noise values inside and outside the vehicle; calculating a broadcast volume and a broadcast speed based on the comprehensive noise value; and broadcasting the execution condition of the control instruction according to the broadcasting volume and the broadcasting speed. The accuracy of instruction recognition and voice broadcast functions of the cabin is improved, voice instructions of old people can be recognized more easily, voice broadcast content can be heard more easily, and therefore driving experience and driving safety are improved.

The invention provides a GNSS (Global Navigation Satellite System) network RTK (Real Time Kinematic) differential data broadcasting method and system based on user position sharing, aiming at improving the resource utilization efficiency and the positioning service precision of a network RTK system. According to the method, after a user sends out a differential data request, an existing broadcast product is searched within a certain range, if differential data meeting conditions do not exist, a new broadcast source is dynamically generated according to the initial position of the user, and the error is calculated through a regional ionosphere and troposphere error model and the correlation between the error and the distance and the elevation. Determining a coverage range of the broadcast source; and if the differential data meeting the condition exists, directly sharing the broadcast source. According to the method, resource waste caused by the fact that no user grid point exists in traditional grid broadcasting is avoided, and meanwhile the problem that troposphere correction numbers are inconsistent due to user elevation difference in a single-layer grid mode is solved by dynamically adjusting generation and sharing of broadcasting sources.

The invention relates to a low-cost Beidou satellite positioning enhancement method, and belongs to the technical field of GNSS positioning. According to the invention, the first Beidou terminal receives the correction number information, realizes high-precision positioning and obtains the observation value domain difference correction number of the position where the first Beidou terminal is located, and at the moment, the first Beidou terminal is used as a base station to establish a Beidou short message multicast group with other Beidou terminals; and broadcasting the observation value domain difference correction number to other Beidou terminals in the area through Beidou short message broadcasting. According to the invention, cooperative positioning of a plurality of north hopper terminals in a working area can be realized without relying on a ground base station; and communication resources of a Beidou No.3 global satellite navigation system are fully utilized, satellite-based and ground-based differential correction number broadcasting is realized based on Beidou short messages, and high-precision positioning and communication self-closed-loop of the system can be realized only through a Beidou system. Infrastructure construction investment is reduced to the maximum extent, the service coverage range is wide, cost is low, and the system is light and easy to deploy.

The invention discloses an enhanced positioning SSR real-time correction loop monitoring method and device, and belongs to the technical field of satellite navigation positioning. The method comprises the following steps: monitoring the quality of reference station data through an SSR correction parameter estimation monitoring end, and generating a data source link quality identifier Q-I; performing precision comparison and availability monitoring on the independently estimated SSR correction product and a third-party service mechanism product through an SSR correction product monitoring end, and generating a product information source link quality identifier Q-II; user positioning scenes with different precision requirements are simulated through an SSR correction product service monitoring end, and a product service link quality identifier Q-III is generated; and encoding the quality identifiers Q-I, Q-II and Q-III into an SSR message at an SSR recoding end for broadcasting. According to the invention, the operation system can provide hierarchical services, and different user requirements are guaranteed.

The invention relates to the field of digital data processing, and discloses a virtual display interaction system and method based on meta universe, and the method comprises the steps: capturing a weak interaction leading signal of a user in real time, converting the weak interaction leading signal into an interaction intention primitive carrying main body, target, action and intensity information through a lightweight rule, and broadcasting the interaction intention primitive; and each client integrates the elements to construct a dynamic interaction intention flow field, so that relevant data are preloaded prospectively, and fine auxiliary regulation and control are carried out on high-intention collaborative interaction. According to the method, the interaction intention flow field is used for estimating the group trend, intelligent preposition of resources and precise assistance of cooperation are achieved, virtual feedback time delay is remarkably shortened, and the success rate and naturalness of a complex cooperation task are improved.

The invention belongs to the technical field of crossing of satellite navigation and edge computing, and relates to a differential data broadcasting method based on edge computing, which comprises the following steps: accessing multi-source data through a dynamic data acquisition processing module, reducing noise, scheduling computing power through an edge node cooperative computing module, and fusing data to generate a differential factor; the spatio-temporal characteristic difference generation module generates adaptive difference data in combination with spatio-temporal and environmental parameters, then the intelligent broadcast resource management and control module selects channels and performs layered coding broadcast, the system health degree management module guarantees stability, the cross-domain collaborative application interface module adapts to multiple scenes, and after the system is started, all the modules operate in sequence, data are collected and processed firstly, and then the data are transmitted to the intelligent broadcast resource management and control module. And then generating factors through cooperative calculation, generating adaptive differential data, intelligently broadcasting the adaptive differential data, monitoring and maintaining the adaptive differential data by a health degree module, and finally docking each application scene through an interface module to realize high-precision positioning service.