911 results about "Large screen" patented technology

The invention discloses an interactive large-screen visualization system and method based on multi-dimensional data real-time rendering, relates to the technical field of image rendering, and aims to solve the bottleneck problems of a traditional system in the aspects of data throughput efficiency, rendering delay and interactive response. The method comprises the following steps: dividing space blocks by adopting a non-uniform octree, dynamically adjusting the size of the blocks according to data density, and combining a ZSTD + Hoffman hybrid compression algorithm; a CPU-GPU three-level asynchronous processing assembly line is constructed, and task priorities are dynamically adjusted through a fixation point weight algorithm; the master node dynamically allocates LOD parameters, and the slave nodes achieve special-shaped large-screen sub-pixel-level splicing based on a spherical coordinate system model; a Q-learning algorithm is adopted to predict a user operation sequence, and dual-channel bandwidth adaptive allocation is realized in combination with an ASTP protocol. The system comprises a dynamic partitioning module, a pipeline scheduling module, a multi-node cooperation module, an intelligent preloading module and an exception handling module. Real-time interaction visualization of a large amount of data can be realized, the rendering efficiency is improved, and hardware resource occupation is reduced.

The invention discloses a UE4-based digital twin model construction system and method, and relates to the technical field of computer vision, and the system comprises a geometric modeling unit which generates three-dimensional model data based on geometric modeling data of a target physical entity, and achieves dynamic LOD rendering level switching through virtualization processing; the real-time data interaction unit is used for analyzing the real-time sensor data flow and generating equipment state data in combination with a transmission operation and maintenance instruction; the simulation engine unit is used for executing rigid body motion and collision simulation based on the equipment state data and outputting a collision event sequence and state transition data by utilizing an event trigger; the machine learning unit is used for training an LSTM (Long Short Term Memory) model based on the collision event sequence and the state transition data, and optimizing state covariance parameters through adaptive Kalman filtering; and the visual interaction unit is used for realizing data synchronization of the command large screen and the mobile terminal through multi-screen collaboration. According to the method, the digital model capable of accurately reflecting physical entity behaviors and characteristics is constructed.

The invention discloses a railway vehicle test data management and analysis system, and the system comprises a multi-modal data collection module which collects the heterogeneous data of tests such as airtightness and weighing in real time; the block chain credible evidence storage module is used for performing time-space stamp marking and hash encryption on the data and verifying the integrity; the space-time atlas analysis module is used for constructing a space-time heterogeneous atlas and generating vehicle-level feature vectors through graph convolutional network fusion data; the predictive maintenance decision module is used for predicting subsystem performance degradation and fault risks and generating a hierarchical maintenance strategy; and the adaptive visual platform integrates a large screen and a mobile terminal to display data and decisions. According to the system, efficient integration and credible evidence storage of multi-source data are realized, the data utilization efficiency and analysis depth are improved, accurate maintenance decision is supported, and safe operation of railway vehicles is guaranteed.

The invention discloses a digital large-screen interaction method and device based on multi-agent cooperation and a medium, and relates to the technical field of digital large-screen interaction.The method comprises the steps that postures, expressions and voice data of a user are collected in real time, the attention weight is calculated in combination with spatial position information, the emotional state change rate is monitored, and the user experience is improved in combination with personal historical browsing preferences; acquiring a main interaction user, an emotional state feature and an emotional change trend; according to the main interaction user, the emotional state features and the emotional change trend, obtaining an initial confidence coefficient of the suspected interested field through a semantic understanding model; and based on the candidate guide images, identifying a user selection intention through a multi-modal fusion processing mechanism, calculating a selection probability, triggering content activation of the main interaction area and content dynamic generation of the auxiliary information area, synchronizing state information, and starting an immersive collaborative interaction process. Through three-level collaborative service configuration, the beneficial effects of improving large screen content organization efficiency and enhancing immersive interaction experience are achieved.

The invention belongs to the technical field of speech recognition, and discloses an intelligent chart dynamic generation method based on speech recognition and multi-modal interaction. Comprising the following steps: collecting user voice data and denoising to obtain accurate user voice data; performing semantic structure segmentation and combination, and outputting complete user semantic data; executing semantic analysis and outputting user query intention information; extracting a query target data subset; constructing a field structure portrait based on the query target data subset, generating a target chart format, and outputting target chart parameters; performing structure correction on the target chart parameters based on the multi-modal interaction information collected in real time, and outputting a dynamically corrected target chart; performing trend evolution display on the dynamically corrected target chart to obtain an optimized target chart, and sending the dynamically optimized target chart to a preset data large screen; the voice recognition accuracy and robustness are improved, the interaction function of the chart is optimized, the interaction requirement of the user is met, and the interaction experience of the user is improved.

The invention provides a wind power plant equipment modeling and operation and maintenance management and control method and device based on digital twinning, and the method comprises the steps: restoring a fan entity based on a 1: 1 three-dimensional modeling technology, integrating multi-source data, including equipment sensor, video monitoring and GIS topographic data, and achieving the real-time mapping of a physical field and a virtual field through the construction of a high-precision digital twinning model. And the intelligent decision support module predicts wind resource distribution by using a dynamic boundary layer model, optimizes a grid-connected control strategy in combination with a virtual inertia simulation technology, and guarantees the transient stability of the power grid in a new energy fluctuation scene. And the full-life-cycle management platform supports full-process management from site selection planning, operation monitoring to fault diagnosis, and realizes multi-service data fusion display and interactive operation and maintenance strategy verification through a three-dimensional visual large screen.

The invention discloses a building engineering construction quality progress monitoring method and system based on artificial intelligence. A BIM model is constructed according to image data and project drawings of an engineering site; according to the BIM model, intelligent sensors are arranged on site, and online construction information is collected; online construction information is extracted, three-dimensional environment scene reconstruction is carried out according to the surrounding environment, and construction progress data is obtained; calculating an environment fluctuation value according to the construction progress monitoring condition and the online construction information, and setting a construction adjustment strategy; constructing a gray scale prediction model, and predicting a progress critical value result according to the construction progress data and the construction period after construction adjustment; and the construction progress data, the three-dimensional environment scene and the progress critical value prediction result are visualized to generate a BIM simulation large screen, so that the scheduling scientization of the construction process is realized.

The invention relates to the technical field of data display, can be applied to business system platforms of financial science and technology, medical health and the like, and discloses a link monitoring large screen display method, device, equipment and medium, the method comprises the following steps: obtaining a plurality of visual components, performing component configuration on the plurality of visual components, and obtaining an initial configuration component library; obtaining component attributes of the initial configuration component library, and performing incremental updating on the component attributes to obtain component change attributes; obtaining an incremental component according to the component change attribute, performing component updating on the initial configuration component library by using the incremental component to obtain a target visual component library, and constructing a link monitoring large screen according to the target visual component library; obtaining link topology data, and performing link topology rendering on the link topology data to obtain target link data; and performing visual display on the target link data on the link monitoring large screen to obtain a data display result. According to the invention, high configurability and modularization of the link monitoring large screen can be realized.

The invention relates to the field of combat command and dispatch, in particular to a multistage linkage combat unit command and dispatch system. According to the invention, a basic-level minimum emergency unit element information base is constructed through a data acquisition module; generating an electronic map supporting 2D and 3D switching; an intelligent analysis early warning module identifies abnormal conditions and generates early warning information; a plurality of multi-level linkage combat unit topology networks are generated through the multi-level linkage command architecture module; generating a command data large screen for dynamically aggregating public security indexes and a global situation visualization electronic map through a global situation visualization module; an early warning area is circled and selected through the intelligent scheduling module; and associating the corresponding multi-stage linkage combat unit to generate a deployment instruction. According to the multi-level linkage combat unit command and dispatch system provided by the invention, the multi-level linkage combat unit is effectively combined with a dynamic visual geographical environment from data acquisition, analysis and early warning to command and dispatch through cooperation of multiple modules, so that the command and dispatch efficiency is remarkably improved.

The utility model discloses an inward and outward folding telescopic support for television installation, which comprises a connecting plate, hollow square tubes are vertically welded and fixed on two sides of the connecting plate, connecting ribs are arranged on the hollow square tubes at intervals, the hollow square tubes are connected with a hanging rack, and the hanging rack is connected with the connecting plate. The two sides of the middle portion of one side of the hanging frame are turned inwards to form two pairs of fixing pieces, the fixing pieces are connected with an upper U-shaped connecting piece and a lower U-shaped connecting piece, the two sides of each U-shaped connecting piece are perpendicularly turned on one side and are provided with threaded holes in a penetrating mode, and a telescopic assembly is installed on the side, away from the connecting plate, of each U-shaped connecting piece through a T-shaped sleeve. The utility model belongs to the technical field of television installation, particularly relates to an inward and outward folding telescopic support for television installation, and solves the problem that a socket, a signal box, a sound box and the like are difficult to avoid when a television is installed. And the problem that the installation elevation angle of the large-screen television cannot be stably fixed due to the fact that the television is installed in an embedded mode to increase the thickness away from the wall and an adjusting device is solved.

The invention provides a screen encryption method and device and an LED large screen system, and relates to the technical field of LED large screens, and the screen encryption method comprises the steps: controlling an upper computer to generate a first encryption instruction according to the authority determined by an administrator, transmitting the first encryption instruction to an encryption circuit for data conversion, and generating a corresponding dynamic random password; the dynamic random password is displayed on the LED display module; responding to a dynamic random password input by the user on the upper computer, and generating a corresponding second encryption instruction; determining an instruction similarity between the first encryption instruction and the second encryption instruction; and under the condition that the instruction similarity reaches a similarity threshold value, controlling the encryption circuit to conduct an enabling end of the LED display module so as to allow the LED display module to normally display contents. According to the application, the security of the LED large screen system can be improved, illegal control of the LED display module is prevented, and the legality of the display content is ensured.

The invention provides an intelligent large screen power supply system, method and device based on ambient light capture and a medium, and belongs to the technical field of energy-saving control. The system comprises an ambient light capturing module used for collecting ambient light and converting the ambient light into electric energy; the energy management module is used for collecting current ambient light intensity, processing electric energy, dynamically distributing the electric energy to a display system of the intelligent large screen for power supply or charging an energy storage module according to an instruction of the intelligent control module, and feeding back light intensity and energy flow data to the intelligent control module; the energy storage module is used for storing surplus electric energy under the control of the energy management module, outputting electric energy to the energy management module to maintain the operation of the display system when the light intensity is insufficient, and receiving a state detection instruction of the intelligent control module through a sleep wake-up mechanism; and the intelligent control module is used for receiving the light intensity data, generating an electric energy distribution and display parameter adjustment strategy, and controlling power supply mode switching of the energy management module and dormancy awakening of the energy storage module.

The invention discloses a stereoscopic vision optimization method and system for a naked-eye 3D large screen, and particularly relates to the technical field of naked-eye 3D vision optimizing.The method comprises the steps that environment illumination and audience positions are sensed in real time through multi-sensor fusion, and an environment light field model is established; glare crosstalk noise is predicted based on physical simulation, and self-adaptive suppression and compensation are carried out in combination with human eye visual sensitivity and image content features; a virtual camera is dynamically generated according to the real-time positions of the eyes of the audience, and a lightweight neural radiation field renderer is used for real-time re-rendering, so that motion parallax is realized; and finally, intelligently fusing the glare compensation layer and the perspective correction layer, coding and outputting to a screen. The system correspondingly comprises an environment perception module, a glare compensation module, a perspective rendering module and a fusion coding module. The naked-eye 3D large-screen display method effectively inhibits ambient light interference, improves the quality and immersion of a stereoscopic picture under different visual angles, and is suitable for naked-eye 3D large-screen display under outdoor and complex illumination environments.

The invention discloses terminal equipment, which comprises a display structure, a shielding structure and an antenna, and is characterized in that a second part of the shielding structure is arranged on the periphery of the side surface of the display structure, and the second part is arranged between a radiator and the side surface of the antenna, so that signal isolation is realized, and the absorption loss of the display structure to the antenna is reduced. According to the application, the miniaturization and large screen-to-body ratio of the terminal equipment can be realized, and the performance of the antenna can be ensured.

The invention provides a data analysis large screen generation method and device and a data analysis system.The method comprises the steps that an input data analysis requirement text is obtained, and the data analysis requirement text is a text describing a data analysis requirement; the data analysis demand text, the chart type and the data field are matched, a target chart type and a target data field are obtained, the target chart type is the chart type meeting the data analysis demand, and the target data field is the name of data needed by meeting the data analysis demand; matching a chart template according to the target chart type to obtain a target template; acquiring data corresponding to the target data field and filling the data into the target template to obtain a data chart; and generating a data analysis large screen according to the data chart. The problem of low efficiency of data analysis in the prior art is solved.

The invention discloses a BIM-based electromechanical installation resource management and control system, and the system comprises a data sensing layer which integrates a laser radar, an RFID, a UWB and an environment sensor, collects multi-modal data, and forms a total-factor digital twin base data stream after the multi-modal data is preprocessed by a mobile edge computing node; the model fusion layer is used for binding the construction progress with BIM component attributes, dynamically deducing a component-level progress path through an AI algorithm, identifying key path conflicts, integrating ERP resource data to generate a thermodynamic diagram and a cost deviation curve, and automatically detecting pipeline collision, progress lag and cost hyper-branched risks through a rule engine machine learning dual-mode engine; triggering multi-stage early warning and dynamically adjusting a threshold value; the intelligent decision-making layer is used for predicting the progress deviation probability of the future seven days by adopting LSTM, generating a non-tampering deviation correction scheme in combination with a block chain, and realizing hierarchical response through a yellow-orange-red three-level alarm system; and the user interaction layer is used for realizing multi-terminal collaboration and executing verification data feedback through AR glasses, a mobile terminal and a large-screen monitoring center.

The invention discloses a control method for wireless charging of an electric vehicle, which comprises the following steps of: detecting whether the current vehicle is in a wireless charging area or not in real time through a vehicle-mounted wireless charging module, and when the vehicle is detected to enter the wireless charging area, sending a reminding signal through a vehicle-mounted large screen to remind the area where the current vehicle is located. The method has the advantages that reminding, control and interaction in the wireless charging process are achieved through interaction control, and the accuracy of starting control of wireless charging and the experience feeling of a user during wireless charging are effectively improved.

The invention provides a building construction safety intelligent early warning and prevention and control system, and belongs to the technical field of building construction safety intelligent management. According to the invention, through GPS, sensor network and environmental parameter monitoring, dynamic perception of personnel behaviors, equipment states and construction environments is realized, high-place falling, mechanical faults and fire accidents are effectively prevented, a risk model constructed based on big data and machine learning can accurately identify accident rules, such as seasonal hidden dangers and equipment fatigue trends, and the safety of the system is improved. Traditional post-event processing is converted into pre-event prevention, personnel distribution, equipment states and environment data are displayed through a large screen and a mobile terminal, a manager can quickly allocate resources and balance safety and progress contradictions, a safety performance evaluation module generates a report through indexes of an accident rate and a hidden danger rectification rate, the safety management effect is quantified, and the management efficiency is improved. Weak links are helped to be positioned, risk model parameters and early warning rules are optimized regularly, and a PDCA cycle of'monitoring-early warning-prevention and control-evaluation 'is formed.

The invention provides a body function evaluation method and device based on multi-modal sensing fusion. Real-time detection and analysis of human motion and postures are achieved through a multi-modal sensing technology. According to the method, the test process is standardized, operation is automatic, scoring is objective, the accuracy and repeatability of the test are improved, and manual intervention is reduced. Through visualization and voice guidance, action demonstration and prompts are provided on a large screen, it is ensured that a testee completes a test autonomously, and the operation burden of workers is reduced. Meanwhile, the system automatically calculates scores and generates reports according to a standard SPPB scoring rule, provides result interpretation and rehabilitation suggestions, and remarkably improves the evaluation efficiency and practicability. In addition, a personalized video exercise prescription is generated according to the test score, so that the testee can track the training progress conveniently. The closed loop of detection and intervention services is ensured, and the rehabilitation effect is improved.

The invention discloses a design method of a head-mounted gesture interaction device for a 3D large screen. The interaction device comprises a positioning module, a gesture recognition module, 3D glasses and a large-screen terminal display module. The positioning module and the gesture recognition module are fixed on the 3D glasses, and the positioning module is used for determining viewpoint coordinates of a user in an interaction space. The large-screen terminal display module receives viewpoint coordinates and hand joint data provided by the positioning module and the gesture recognition module, and displays 3D virtual reality scene content required by a user viewpoint through a screen. The 3D glasses are used for watching the content displayed on the screen. According to the interaction device, the positioning module and the gesture recognition module are bound with the viewpoint of the user, and synchronous hand tracking under the dynamic viewpoint is achieved. The gesture recognition module pose is determined through the design method, on the premise that an effective interaction space is not affected, factors, such as gesture shielding, influencing recognition accuracy are weakened to the maximum extent, flexibility and recognition accuracy are improved, and cost is reduced.

The invention provides an LED large screen heat dissipation method and system for achieving intelligent partition temperature control, and belongs to the technical field of LED large screen heat dissipation. The method comprises the steps that an LED large screen is divided into pixel units, and a micro thermoelectric refrigeration sheet and a micro-channel heat dissipation layer are arranged between an LED chip and a substrate of each pixel unit; dividing the LED large screen into partitions, collecting environment temperature and humidity values, brightness values of all the partitions and real-time temperature values, and obtaining temperature prediction values of all the partitions by using an LSTM (Long Short Term Memory) model; and the target temperature of each subarea is calculated by combining the real-time temperature value and the temperature prediction value of each subarea, and the power of the micro thermoelectric refrigeration sheet is controlled according to the target temperature of each subarea. Intelligent partition temperature control heat dissipation of the large LED screen is achieved, the heat dissipation power can be dynamically adjusted according to the actual conditions of different partitions, the situation of excessive heat dissipation or insufficient heat dissipation is avoided, and the heat dissipation structure is optimized by adopting the mode of combining the micro thermoelectric refrigeration sheet and the micro-channel heat dissipation layer.

The invention belongs to the technical field of data filtering query, and particularly relates to a dynamic SQL-based parameter data transmission filtering query mode for a low-code visual component, which comprises the following steps of: S1, constructing a low-code visual large-screen component and a background service API (Application Program Interface); s2, interactively filtering the linkage demand by the visualized large-screen component, and realizing dynamic parameter transmission of the SQL parameter transmission query request; s3, providing a visual operation interface by using the visual large screen component; s4, calling the data source identifier stored in the step S2 by the SQL parameter analysis constructor generation component; and S5, performing parameter extraction on the structured filtering condition data by the SQL parameter analysis constructor. According to the overall structure provided by the embodiment of the invention, the SQL parameters are transmitted during data query, and then the back-end service constructs the filtering and screening conditions meeting the conditions based on the dynamic SQL parameter transmission mode to query the SQL and query the database to obtain the data, so that accurate filtering and screening query of the data can be realized; the problem that a traditional large screen cannot perform database level filtering and screening is solved.

The invention discloses a park large-screen centralized management and control method and system of an intelligent large-screen management platform, and relates to the technical field of intelligent large-screen management, and the method comprises the steps: building the network connection between a platform and a large screen through the configuration of communication parameters and the input of large-screen equipment identification information, and completing the equipment access authentication through the network connection relation; collecting parameter information and an equipment operation state of the accessed equipment; based on the parameter information of the accessed device, setting a content distribution strategy of a display area, and executing format adaptation and split screen template configuration on the multi-format content; and receiving a voice instruction, completing user identity recognition, and executing alarm grading and display content adjustment according to the collected equipment operation state. According to the method, an access mechanism based on automatic matching of communication parameter configuration and equipment identification information is constructed, so that the access efficiency of heterogeneous large-screen equipment and the automation level of system deployment are effectively improved.

The present application is suitable for the technical field of terminals. Provided are a game adaptation method and apparatus, an electronic device, and a computer-readable storage medium. The game adaptation method of the present application comprises: an electronic device acquiring a switching signal of a screen display state; in response to the switching signal, displaying a game interface in a first display region of an inner screen, the game interface comprising a game view region and game control regions which display in an overlapping manner; in response to a game mapping starting signal acquired in a second display region of the inner screen, displaying an actual control interface in the second display region, the actual control interface comprising operation controls having touch mapping with the game control regions. The present application displays the game interface and the actual control interface by means of split-screen, such that third-party games that have not been resolution-adapted to large screens can be adapted to large screens, thereby avoiding hand obstruction of the game view by means of the touch mapping between the operation controls and the game control regions while not reducing the game interface content, and improving the game experience.

The invention relates to the technical field of three-dimensional model image data processing, and discloses a three-dimensional model particularization splitting deduction and multi-mode feedback method, which comprises the following steps: carrying out lightweight three-dimensional model reconstruction according to an equipment process structure diagram, and generating a glTF format data packet with a process information embedding characteristic; establishing a virtual three-dimensional scene through a three.js engine, and instantiating a three-dimensional model object in a glTF format; non-uniform granulation processing is carried out on the equipment model by adopting a splitting and deducting mechanism, discrete motion tracks of parts are solved through a response algorithm, and an equipment dynamic decomposition path display effect is constructed; a calibration sensing link framework is established, an interaction response mechanism based on user behaviors is constructed, and a multi-mode visual feedback system of a large screen is achieved; according to the method, the technical bottlenecks of slow model loading, high interaction delay and the like in traditional industrial large screen display are effectively solved, and the dynamic interaction display effect and user perception of an industrial equipment structure are improved.

The invention discloses an image display method for a naked-eye 3D large screen, and particularly relates to the technical field of intelligent display, which comprises the following steps of: firstly, acquiring and tracking the positions of eyes of multiple audiences in front of the screen in real time through a depth camera network, and distributing a unique ID (Identity) for each audience to realize continuous tracking; thirdly, dividing the audiences into a plurality of visual areas based on a dynamic clustering algorithm, and calculating the rendering priority of each visual area according to the number of the audiences in each visual area and the importance of the content of the concerned screen; then, left and right eye views with correct parallax are rendered in parallel for each activated visual area, and digital pre-compensation is performed by using a pre-stored optical model so as to suppress crosstalk and uneven brightness; and finally, according to the distance and angle of the visual area of the audience, querying the human factor engineering database to obtain a comfortable parallax threshold, and dynamically compressing the extreme depth of field exceeding the threshold in the scene. According to the invention, multi-audience self-adaptive high-quality 3D display is realized, and the watching experience, the resource utilization efficiency and the visual comfort are effectively improved.

The invention provides a construction site safety pre-warning system based on AI model identification. The construction site safety pre-warning system comprises a multi-source sensing layer, an edge calculation layer, a pre-warning decision module, a data middle platform and a report center, the invention discloses a construction site safety early warning method based on AI model identification. The method comprises the following steps that S1, a multi-source sensing layer collects field state data in real time; s2, the edge calculation layer receives and processes the field state data, and sends the field state data to an early warning system core and a command large screen for real-time feedback; s3, the face recognition unit dynamically monitors personnel access, updates on-site personnel information, and counts individual working hours according to the on-site personnel information for management personnel to check; s4, an early warning decision module performs intelligent analysis by using a configured early warning model according to the field state data; and S5, if the early warning rule is triggered, the system immediately displays early warning details on the commanding and dispatching large screen and gives out an alarm sound. According to the invention, full-process digital management of second-level intelligent sensing and risk early warning and disposal of potential safety hazards on a construction site is realized.

This application relates to the technical field of fully automated water surface robots, and provides a performance unmanned boat, including a hull; a mounting frame fixed to the hull; a screen fixed to the mounting frame and located on the top side of the hull, the screen having a ventilation structure; and a float fixed to the hull and located on the side of the hull. The performance unmanned boat provided by this application uses a screen with a ventilation structure and a float in conjunction with the hull. The ventilation structure reduces the screen's resistance to natural wind flow, reducing the external force exerted on the screen by natural wind. Simultaneously, the float increases the hull's support points on the water surface, enhancing the hull's resistance to wind and waves. This effectively solves the technical problem of unmanned boats carrying large screens easily capsizing when navigating on water, improving the stability of the performance unmanned boat on water, ensuring the smooth completion of performance tasks, and enabling the performance unmanned boat to meet the requirements of cultural and publicity purposes.

The invention relates to the field of LED display, and discloses an optical seamless splicing LED large screen system based on AI self-calibration, a terminal and a control method, and the system comprises an LED display module array which is composed of a plurality of spliced LED display modules; the optical seamless fitting assembly is arranged at a splicing gap between the LED display modules; the AI self-calibration unit is arranged in each LED display module; the hot plug adapter module is electrically connected with the LED display module; the main control module is in communication connection with the LED display module array; and the power module supplies power to the system. According to the system architecture, the technical problems that an optical fault is caused by a physical splicing seam existing in an existing spliced LED large screen, calibration depends on external equipment and is low in efficiency, and seamless switching cannot be achieved due to the fact that manual calibration is needed after modules are replaced are solved at the same time.

The invention discloses a security protection method and system for screen display dynamic content, belongs to the technical field of multimedia content security, and is used for solving the technical problem that a video stream played or put by an existing outdoor LED large screen has a security risk of being tampered easily. The method comprises the following steps: acquiring a preset configuration file, and extracting a watermark parameter and an interception strategy from the preset configuration file; embedding a blind watermark into a to-be-played video stream according to the watermark parameter, and transmitting the to-be-played video stream embedded with the blind watermark; and triggering the interception strategy in response to a verification result of the blind watermark so as to display a preset pure color screen. According to the method, the to-be-played video stream is transmitted from the server to the terminal, and then security protection in the whole transmission process of the terminal decoder and the large-screen equipment is realized, so that the risk that the video stream is easily tampered is avoided, the concealment, the anti-interference performance and the multi-equipment compatibility are considered, and the security of the to-be-played video stream is improved. The method is widely applicable to outdoor large-screen content safety protection in scenes such as smart cities and transportation hubs.