81results about How to "Improve communication effect" patented technology

The invention relates to a knowledge-enhanced large model data analysis agent visualization method, which comprises the following steps of: performing syntactic analysis by using a PCFG algorithm, identifying syntactic components and relationships of sentences, and splitting the sentences into sub-sentences with complete logic; extracting keywords and entity words of the sentences by combining a word segmentation technology with a business word segmentation library; recommending and summarizing candidate segmented words through a recall strategy, carrying out rough arrangement, fine arrangement and fine arrangement on the candidate segmented words, and correcting and complementing a segmented word result; splitting and analyzing the natural language problem based on the fine-tuned large model, and generating SQL statements meeting business requirements; analyzing the data set generated by the SQL, extracting field information and business meanings, and identifying an association relationship between fields; and automatically recommending chart styles according to data features and user preferences, assembling an analysis report and distributing the analysis report according to a specified frequency. According to the method, knowledge enhancement and large model technologies are combined, so that the efficiency and effect of data analysis and visualization are remarkably improved.

The embodiment of the invention provides a short video copywriting intelligent explanation method and device, and the method comprises the steps: obtaining a product oral broadcast copywriting and a product video according to a product selling point and a preset product video generation model, and enabling a sentence in the product oral broadcast copywriting to correspond to the product selling point, performing slicing operation on the product video according to each sentence in the product oral playing copywriting to obtain a corresponding video slice; according to the text length of the sentence corresponding to each video slice and a user group portrait sent by a developer, adjusting the playing speed of each video slice by setting a user portrait personalized model, and adding the product oral playing copywriting as a video subtitle into the product video to obtain an adjusted product video; the quality and the propagation effect of the video content can be effectively improved.

The invention discloses a Klebsiella phage and application thereof, and belongs to the technical field of life science. The Klebsiella bacteriophage is preserved in the China General Microbiological Culture Collection Center (CGMCC), the preservation number is CGMCC No.46000, the preservation date is July 22, 2024, and the Klebsiella bacteriophage is classified and named as FK9. The bacteriophage provided by the invention is a biological means capable of efficiently killing klebsiella pneumonia, has the characteristics of high efficiency, specificity and small side effect, achieves the effect of preventing and treating pneumonia caused by klebsiella pneumonia on the basis of not destroying in-vivo flora balance, is incomparable to antibiotics and other antibacterial drugs, and has a broad application prospect. And meanwhile, the method contributes to sustainable development of a health medical system.

The invention discloses an online knowledge base platform for ensuring knowledge content quality and contributor rights and interests and a business model of the online knowledge base platform, and relates to the field of online knowledge bases. The platform integrates block chains, data encryption and artificial intelligence technologies, and aims to improve the quality of knowledge content and protect the rights and interests of contributors. The platform mainly comprises a block chain system, a data encryption system, an artificial intelligence system, a member management system, an auditor evaluation system, a knowledge content collection system, a knowledge content auditing system, an incentive management system, a template management system, a fund management system, a suggestion supervision system, a point transaction system, an advertisement management system and the like. Through a decentralized knowledge management mechanism, a contributor auditing and evaluating mechanism, a knowledge content providing and auditing mechanism and a contributor right protection mechanism, high quality of knowledge base content and fair reward of contributors are ensured, and sharing and communication of knowledge are promoted.

The invention provides a digital human intelligent question-answering system and method for a water affair scene, and relates to the technical field of intelligent water affair, and the method comprises the steps: an inquiry receiving module obtains a user question through a digital human; the data updating module obtains real-time water affair data and updates the extended database; the question retrieval module is connected with the intelligent question and answer model and the water affair knowledge base, semantic matching retrieval is performed in the water affair knowledge base based on the user question through the intelligent question and answer model, and a matched question is obtained; an answer matching module queries a matching answer in an answer data set of the water affair knowledge base based on the matching question; the real-time data query module queries the associated real-time water affair data in the extended database based on the matching problem, and generates a real-time data query tag; and the interaction feedback module displays the matching answer and the real-time data query tag through a digital person. According to the invention, the technical problem of low water affair knowledge propagation efficiency caused by tedious water affair knowledge acquisition modes in the prior art is solved, and the water affair knowledge propagation efficiency and propagation effect are improved.

The invention belongs to the technical field of artificial intelligence and big data processing, and particularly discloses a user management system based on AI big data, and the system mainly comprises a data collection module which is in butt joint with a third-party service and social media platform through an API interface, and collects user behavior data; the feature extraction module processes basic information and behavior data of the user; the user behavior tag generation module generates behavior tags in combination with user features and interests; the user interest analysis module adopts an interest score TF-IDF calculation method to quantify user interests; the pushing grade module divides pushing grades according to the scores of the user behavior labels; the personalized recommendation module monitors the user participation degree and adjusts a video pushing strategy; the dynamic adjustment module adjusts the participation degree score in real time through an exponential decay function, and optimizes the video distribution and pushing sequence; according to the method, accurate personalized recommendation is realized by deeply mining the user data, and the user satisfaction and the interaction efficiency of the platform are remarkably improved.

The invention relates to a ceiling antenna based on bidirectional gain. The ceiling antenna comprises a bottom plate, an omnidirectional radiation oscillator and two reflecting plates. A through hole is formed in the mounting surface of the bottom plate, the omni-directional radiation oscillator penetrates through the through hole through the bottom and is connected with the core wire, the two reflecting plates are arranged on the side of the mounting surface and define a reflecting area, the omni-directional radiation oscillator is located in the reflecting area, and when the reflecting plates are arranged in a mirror symmetry mode, the center point of the omni-directional radiation oscillator is coplanar with the symmetry plane of the reflecting plates. The distance between the reflecting plates is in positive correlation with the distance between the reflecting plates and the first plane in the direction perpendicular to the first plane. According to the design, signal radiation is effectively concentrated to a long and narrow space by accurately configuring the relationship between the reflecting plate and the omnidirectional radiation oscillator, the problem of insufficient signal coverage of a traditional antenna in long and narrow environments such as a gallery is solved, bidirectional gain of the antenna is realized through mirror symmetry and optimal configuration of the reflecting plate, and the signal coverage uniformity is ensured. And the signal coverage effect is improved.

The utility model discloses a thin loudspeaker of an alto cone frame, which comprises a fixed seat, a connecting block sleeved at the upper end of the fixed seat, a sensing assembly arranged at one side of the outer end of the connecting block, a cone fixedly connected at the upper end of the connecting block, and a plurality of threaded holes arranged at the periphery of the top end of the cone. Wherein the upper end of the sound basin is provided with an elastic ring film, the sound transmission assembly is fixedly installed in the fixed seat and is used for sound transmission, through the synergistic effect of the sound transmission assembly, the sound basin, the elastic ring film and the hemispherical cover body, accurate conversion from an electric signal to a sound wave, the magnetic field effect of the sound transmission assembly and vibration generation are realized, and the sound transmission effect is improved. The sound cone can accurately generate vibration along with the change of an electric signal, and meanwhile, the design of the elastic ring film and the hemispherical cover body further enhances the transmission effect and focusing performance of sound, so that the sound is clearer.

The utility model relates to the technical field of advisement players, in particular to an advisement player with an image integrated structure, and solves the problem that the advisement player in the prior art plays a more and more important role in commercial propaganda as an intelligent information spreading tool. A traditional advertising machine mainly focuses on the display of videos and pictures, but has obvious shortages in the aspect of sound transmission, and cannot bring all-around sensory experience to audiences. An advertising machine with an image integrated structure comprises a bottom plate and a mounting frame. The mounting frame is connected to the center of the top of the bottom plate, and a plurality of display panels are connected to the interior of the mounting frame; and moving wheels are mounted at four corners of the bottom of the bottom plate. Through the innovative design in combination with sound, vision, convenient mobility and the like, the advertisement spreading effect and the omnibearing sensory experience of audiences are remarkably improved, meanwhile, the stability and the applicability of the advertising machine are guaranteed, and the requirements of modern commercial propaganda are better met.

The invention relates to the technical field of computer data processing, in particular to a personnel information offline processing method based on Android. According to the personnel information offline processing method realized by using the Android platform, the personnel information is stored on the mobile equipment by using the local database, so that the defects of a traditional mode are overcome. The method comprises the following steps: acquiring personnel information input by a user; storing the personnel information in a local database; and querying and displaying personnel information according to user requirements. According to the method and the device, offline processing of the personnel information is realized on the Android platform, so that the processing efficiency and the safety are improved, and meanwhile, the user experience is also improved.

The invention provides a telescopic three-section type electric helicopter aerial oil receiving device which comprises a first pipe 12, a second pipe 11, a third pipe 18, a sealing ring 8, a first operation box 9, a second operation box 17, an initial cable 10 and a relay cable 1, the first pipe 12, the second pipe 11 and the third pipe 18 achieve the telescopic function in a sleeving mode, and fuel oil flows in the first pipe 12, the second pipe 11 and the third pipe 18; the first pipe 12, the second pipe 11 and the third pipe 18 are coaxial, the second pipe 11 is sleeved with the first pipe 12, and the third pipe 18 is sleeved with the second pipe 11; the first pipe 12 is fixedly connected with the helicopter end, and the second pipe 11 is in butt joint with the oiling machine end. Each of the first operation box 9 and the second operation box 17 comprises a motor 33, a control box 6, a winch 4, a worm 22, a turbine 5 and a bearing 19; a first pipe tail end inner limiting ring 20 is arranged on the first pipe 12, a second pipe tail end inner limiting ring 7 and a second pipe front end outer limiting ring 16 are arranged on the second pipe 11, and a third pipe front end outer limiting ring 13 is arranged on the third pipe 18.

The utility model discloses a kind of safety warning devices for mine safety, including mounting seat, the top of mounting seat is rotatably connected with warning light by bearing, detachably mounted with protective cover in the outside of warning light in the top of mounting seat, and the top of protective cover is installed with dust cover, the central shaft end portion of warning light base is passed through mounting seat and is fixedly connected with mounting frame, speaker is detachably installed in mounting frame, the bottom of mounting seat is symmetrically fixedly connected with fixed rod, and the bottom of fixed rod is fixedly connected with support plate, the bottom center of support plate is fixedly installed with driving motor, and the central shaft end portion of driving motor is fixedly connected with mounting frame by passing through support plate, the utility model has the beneficial effects: the utility model can realize the double warning of vision and hearing, and rotation of warning light and speaker can be controlled in warning, the coverage range and propagation effect of sound warning are enhanced, and protective cover is installed conveniently and quickly, and it is convenient to disassemble and replace, improve the maintenance efficiency of device.

The invention provides a course ideological and political spreading method and system based on a short video platform, and relates to the technical field of education spreading, and the method comprises the steps: carrying out the text conversion of target course content, and obtaining text data; classifying and preprocessing the text data, and extracting element features related to ideological and political education through a natural language processing technology; performing video production according to the element features and the target course content to obtain a target short video; encrypting and publishing the target short video; monitoring the published target short video to obtain the watching behavior and interaction data of the crowd watching the target short video; and optimizing the target course content according to the watching behavior and the interaction data. According to the invention, the spreading efficiency and effect of ideological and political education can be improved, interaction between teachers and students can be promoted, the attraction of courses can be enhanced, dynamic optimization of education contents can be promoted, the system adapts to modern learning modes, and the system has important education value and social significance.

The invention relates to an information display method and device, electronic equipment, a storage medium and a program product. The method comprises the steps of displaying a material analysis page corresponding to a target material; and displaying a first analysis result on the material analysis page, the first analysis result representing first material optimization information of semantic indication of a target comment, and the target comment being a comment corresponding to the target material. The first material optimization information directly mined based on the real feedback (target comment) of the audience of the target material reflects the real demand of the audience, and a creator of the target material can adjust and improve the material in a targeted manner based on the real demand of the audience, so that the material optimization result can be matched with the real demand of the audience, and the user experience is improved. And the material optimization efficiency and the propagation effect are improved, and the time and energy of a creator are saved. Meanwhile, as accurate insight is provided for the needs of audiences, the trial and error of creators can be reduced, and the creation cost is reduced.

The utility model relates to bluetooth sound box technical field discloses an anti -skidding outdoor bluetooth sound box, including the shell, the shell outer wall both sides are provided with anti -skid subassembly, the shell inner wall is provided with quick detachable subassembly, the anti -skid subassembly includes two fixed end plate, two fixed end plate fixed connection in the shell outer wall both sides respectively, two fixed end plate outer walls all rotatoryly connected with telescopic link, two telescopic link outer wall one side all rotatoryly connected with linkage connecting rod, two linkage connecting rod one end all rotatoryly connected with connecting rod pivot, in the utility model, anti -skid subassembly provides stable support guarantee for outdoor use through ingenious mechanical linkage design, realizes three gear angle adjustment and locking, can adapt to different outdoor topography, such as slope, grassland complex environment, lets the sound box place more stable, collocation antiskid pad increases friction, effectively avoids the sound box to slide, to fall damage because of external force, guarantees the sound box stable sound production under the outdoor scene.

The utility model discloses a display device which comprises a display frame and an adjusting frame, a bottom frame block is fixedly installed at the bottom of an inner cavity of the display frame, rotating grooves are formed in the two sides of the bottom frame block, adjusting holes are formed in the two sides of the adjusting frame, and adjusting columns are rotationally installed in the adjusting holes. Display plates are fixedly mounted on the opposite sides of the adjusting columns, magnetic attraction plates are fixedly mounted in the display plates, magnetic attraction blocks are attracted to the two sides of each magnetic attraction plate, fastening rotating handles are in threaded connection with the outer sides of the adjusting columns, and supporting columns are fixedly mounted on the two sides of the bottom of the adjusting frame. According to the display device, voice broadcasting and scrolling display can be carried out on propaganda content at the same time through the voice broadcaster and the LED display screen, the display device has the advantages of being rich and diversified in display content and vivid in display mode, the spreading effect of the legal culture can be effectively improved, and popularization of the legal culture is promoted.

The present invention relates to the field of three-dimensional scanning technology, and in particular to a method for automatically extracting fish phenotypes based on a three-dimensional scanning model. The method comprises the following steps: performing three-dimensional scanning processing on a fish sample by a three-dimensional scanning device to obtain three-dimensional point cloud data of the fish sample surface and three-dimensional texture data of the fish sample surface; reconstructing a three-dimensional scanning model of the fish sample to obtain a three-dimensional scanning reconstruction model of the fish sample; performing fish region grid segmentation processing and sub-region fish phenotypic feature analysis on the three-dimensional scanning reconstruction model of the fish sample to obtain fish phenotypic feature data sets of different fish segmentation sub-regions; performing fish phenotypic parameter calculation and chart visualization conversion on the fish phenotypic feature data sets of different fish segmentation sub-regions to generate fish feature parameter visualization phenotypes of different fish segmentation sub-regions. The present invention can realize automatic and accurate extraction of fish phenotypes by intelligently processing three-dimensional scanning data.

The invention relates to the technical field of big data analysis, in particular to a data information pushing system based on a cloud conference, which comprises a data processing and sequence division module, a conference data association analysis module, a conference participating user behavior pattern recognition module and a conference content pushing formulation and optimization module. By extracting and processing conference data, an accurate and ordered data basis is provided for subsequent analysis; a correlation coefficient and a clustering algorithm are utilized to deeply mine relevance among conference data, conference themes are accurately divided, and powerful support is provided for conference content pushing; by defining a behavior label and training a decision tree classifier, the behavior pattern of a participant user is effectively identified, and an important basis is provided for personalized conference content pushing; by calculating the pushing weight and adjusting the pushing strategy, accurate and efficient conference content pushing is realized. The method and the device are used for solving the technical problem that content association and user behavior analysis are not comprehensive in current information management pushing.

The invention belongs to the technical field of advertising equipment, and discloses rotary combinable advertising equipment which comprises LED advertising screens arranged at equal angles, a flexible hinge is arranged in the middle of each LED advertising screen, a base is arranged at the bottom end of each LED advertising screen, and mounting rods are fixedly mounted on the outer side faces of the flexible hinges at equal angles. The end, away from the flexible hinge, of the mounting rod is connected with the middle of the inner side face of the LED advertising screen. Through cooperation of the first electric push rod, the adjusting assembly at the bottom end and the flexible hinges, when the flexible hinges form a circle, the multiple LED advertising screens can form the circle in a surrounding mode, rapid rotating display of the multiple LED advertising screens can be achieved through cooperation of the first electric push rod and the limiting holes, and the single LED advertising screen can display independent content; through rotary display of a plurality of LED advertisement screens, synchronous display of different advertisement information at various angles is achieved, the problems that a traditional device is single in display content and small in observation range are solved, and the advertisement spreading effect is improved.

The utility model discloses an automatic rotating guideboard advertisement which comprises a first mounting plate, two sliding grooves which are symmetrically distributed are formed in the top end of the first mounting plate, sliding blocks are arranged in the two sliding grooves in a sliding mode, and gear teeth are fixed to the sides, close to each other, of the top ends of the two sliding blocks. First advertisement boards are fixed to the tops of the two sliding blocks, a gear is rotationally arranged in the center of the top of the first mounting plate, a lead screw is fixed to the top of the gear, a mounting pipe is in threaded connection with the lead screw, two square plates which are symmetrically distributed are fixed to the outer wall of the mounting pipe, and limiting plates are arranged on the two sides of the mounting pipe; and a second advertisement board is fixed at the top of the mounting pipe. The utility model can improve the utilization rate and propagation efficiency of guideboard advertisements, reduce the probability of traffic accidents, and guarantee life health and safety.

The utility model relates to the related technical field of injection molding part production, and discloses a raw material crushing and constant-temperature mixing device for injection molding part production, which comprises a stirring and mixing barrel and a covering mechanism, and further comprises a motor arranged on the surface of the stirring and mixing barrel, an auger is fixed to the surface of the stirring rod, a constant-temperature water tank used for boiling water is arranged on one side of the surface of the stirring and mixing barrel, a conveying mechanism used for conveying water is arranged on the surface of the constant-temperature water tank, and a supporting plate is fixed to one side of the surface of the stirring and mixing barrel. When the constant-temperature water tank is used, a worker can use the conveying mechanism to enable hot water in the constant-temperature water tank to participate in stirring work of the stirring rod, so that heat can be in direct contact with raw materials, the heat spreading effect is further improved, in addition, under the action of the covering mechanism, the feeding hole can be covered, heat loss is further avoided, and the working efficiency is improved. The heat preservation capability of the stirring and mixing barrel is improved.

According to the intelligent high-voltage cable coupler, an intelligent cabin and a signal cabin are arranged on the outer wall of a middle shell in a connected mode, a cabin cover plate is detachably arranged on the intelligent cabin in a sealed mode, and a power source part and a control circuit board are arranged in the intelligent cabin; the receiving and transmitting part comprises a positioning function part and a communication part which are arranged in the signal cabin and are electrically connected to the control circuit board; the utility model provides an intelligent high-voltage cable coupler. A cabin cover plate is detachably sealed on an intelligent cabin; the power supply part and the control circuit board are arranged in the intelligent cabin, so that good sealing performance is achieved; the positioning function part and the communication part are arranged in the open signal cabin, so that a better communication effect can be realized; meanwhile, as the intelligent cabin is close to the signal cabin, the positioning function part and the communication part are electrically connected to the control circuit board simply and conveniently; the humidity sensor is arranged in the middle shell and electrically connected to the control circuit board to detect environmental parameters in the shell.

The invention discloses an inter-vehicle communication resource selection method and device, equipment, a medium and a product, and relates to the field of Internet of Vehicles communication, and the method comprises the steps: constructing an energy characteristic spectrum of a candidate resource library based on RB energy characteristics; based on the energy characteristic spectrum, constructing and training a DNN network, and modeling V2V communication link quality related to a vehicle motion state into environment state information; based on the DNN, establishing a DQN application model; when the VUE triggers and selects the resource block in any time slot, the DQN application model is utilized to select the resource block set matched with the quality of the current V2V communication link from the candidate resource library, V2V communication resources in a high-density traffic state can be reasonably allocated, and the reliability and time delay performance of message propagation can meet the technical requirements of automatic driving.

The utility model provides a ceiling iron rear barrel horn convenient for angle adjustment, which comprises a mounting plate, a transmission mechanism is arranged on one side of the bottom of the mounting plate, a driven mechanism is arranged on one side of the transmission mechanism at the bottom of the mounting plate, and a connecting rod is fixedly connected to the bottom of the driven mechanism. The driving motor is started, the output shaft end of the driving motor drives the transmission gear to rotate, due to the fact that the transmission gear is meshed with the driven gear, rotation of the transmission gear can drive the driven gear to rotate, the ceiling horn is fixedly installed at the bottom end of the connecting rod, and meanwhile the dustproof assembly is arranged at one end of the ceiling horn. And then the ceiling horn is driven by the connecting rod to adjust the angle. Therefore, the ceiling horn can be rapidly adjusted to the optimal sound production angle according to different spatial layouts and use scenes, thereby improving the sound transmission effect and the coverage range.

Embodiments of the present application provide a video recommendation method and device, equipment and a storage medium, receiving a video set acquisition request sent by a client, the video set acquisition request comprising a user identifier corresponding to a user; determining a user group category corresponding to the user according to the user identifier; determining a video set corresponding to pre-edited label information matched with the user group category as a target video set, the video set being a set of videos obtained by mixing and cutting a plurality of to-be-cut videos; and sending the target video set to the client to enable the client to play the target video set. Embodiments of the present application enable a target video collection recommended to a user to attract a target user group through video features related to the label information of the target video collection, enhance user viewing stickiness, and improve the propagation effect of the target video, thereby achieving more accurate quick-look video recommendation for different users.

This utility model discloses a novel emergency alarm device, comprising a housing, a trigger module, a transmission module, an alarm module, and a power supply module. The housing has a trigger hole at its top and a mounting slot at its bottom. The trigger module is located at the top of the housing, and the transmission module is connected to it. A stationary contact is fixed to the bottom of the housing, and a moving contact is mounted on the bottom of a linkage slider. The alarm module includes a striking hammer, a metal bell, and a sound-emitting cavity. One end of the striking hammer is connected to the linkage slider via a rotating shaft, and the other end has a rubber hammer head. The power supply module is connected to both the transmission module and the alarm module, achieving dual mechanical and electronic alarm functionality. The device adopts a modular design and has an anti-accidental trigger structure, maintaining the mechanical alarm function even during power outages.

This invention provides a method for intelligently generating health knowledge video personalities (IPs). It involves extracting features from acquired multimodal behavioral data to obtain user feature vectors; constructing a candidate pool based on textual, visual, behavioral, and professional qualification data of multiple health knowledge video personalities (IPs), and calculating the attribute feature vectors of all IPs in the candidate pool; inputting the user feature vectors and the attribute feature vectors of all IPs in the candidate pool into a trained bimodal Transformer fusion model for prediction, obtaining a fit score for each feature vector; sorting all fit scores in descending order, selecting the top few IP recommendation schemes, and using all IP recommendation schemes to fine-tune the attribute feature vectors of all IPs in the candidate pool to generate health knowledge video personality (IP) schemes; thereby improving the accuracy of IP matching with user needs and enhancing the dissemination effect of health knowledge.

The present invention discloses a method, system and medium for mining dynamic topic evolution based on a dynamic academic network. The method includes: extracting phrase-level technical words from text information, using the extracted technical words and papers to build a dynamic academic network; obtaining a technical word dynamic vector with time series characteristics based on the dynamic academic network, and generating a technical word distribution of the paper in a global sense based on the academic heterogeneous network of the final time series of the dynamic academic network; inputting the technical word dynamic vector and the technical word distribution into a dynamic topic model, generating the distribution of paper topics at different times, modeling the time series characteristics of paper topics, and obtaining the dynamic evolution trajectory of paper topics at different times. The present invention improves the recognition accuracy of technical words, enhances the modeling ability of the dynamic topic model, and enhances the cross-paper dissemination ability of technical words, which is conducive to generating more interpretable and higher quality topics.

The present application belongs to the technical field of urban computing and data mining, and in particular to a multi-view urban area embedding method based on spatial function consistency. The method comprises the following steps: S1: multi-view data collection and processing; S2: spatial function consistency intra-view representation learning; S3: intra-regional cross-view interaction; S4: inter-regional cross-view interaction; S5: double-feature attention fusion; and S6: downstream task application. The present application can effectively suppress information interference caused by noise edges and weakly related connections, and improve the accuracy and stability of regional local structure modeling. At the same time, the present application enhances the global semantic connectivity and cross-view information propagation capability of the regional representation. On this basis, through a double-layer attention fusion mechanism, adaptive integration of multi-view features and inter-regional associated features is realized, further improving the discriminability, robustness and generalization capability of the final regional embedding representation.

The utility model discloses rotary display equipment for network popularization, and relates to the technical field of rotary display. The device comprises a box body and a motor fixedly installed on the inner wall of the bottom of the box body, a driving mechanism and a configuration mechanism are arranged on the box body, the driving mechanism comprises a first rotating shaft fixedly installed on an output shaft of the motor, a connecting rod is arranged on the outer wall of the first rotating shaft, a second rotating shaft is rotationally arranged on the connecting rod in a sleeving mode, and the second rotating shaft is connected with the driving mechanism. The outer wall of the first rotating shaft is fixedly sleeved with a first gear, the outer wall of the second rotating shaft is fixedly sleeved with a second gear, the second gear is meshed with the first gear, the outer wall of the second rotating shaft is fixedly sleeved with a connecting block, and a round rod is fixedly installed at the top of the connecting block. By arranging the driving mechanism, when the display board needs to be rotationally displayed, the motor can be firstly driven to drive the first rotating shaft to rotate, and the first rotating shaft drives the first gear on the first rotating shaft to be meshed with the second gear on the second rotating shaft, so that the second rotating shaft is driven to rotate.