31results about How to "Improve communication effect" patented technology

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 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 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 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.

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 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 invention discloses a journal content intelligent creation and editing system based on a large language model, and relates to the field of journal content intelligent processing, and the journal content intelligent creation and editing system comprises a local computing power support module, an intelligent creation and editing core module, a dynamic knowledge service module, a full-process compliance management and control module, and an intelligent marketing and data feedback module. According to the publication content intelligent creation and editing system based on the large language model, the system constructs a complete business closed loop of creation, editing, compliance, publishing, marketing and feedback, reader feedback and business index data collected by the data feedback analysis module provides accurate guidance for subsequent topic selection planning and content optimization, and the user experience is improved. A continuously iterative virtuous cycle is formed, and popularization materials adaptive to multiple channels are generated by the scene marketing file sub-module, so that the publication exposure degree and the sales conversion rate are effectively improved; the full-process data visualization report provides decision support for management personnel.

This utility model relates to a deep-sea LED driver control board with adjustable serial communication, belonging to the field of electronic control technology for deep-sea lighting equipment. It aims to solve the problems of existing deep-sea LED driver control boards being unable to adapt to small dry chambers, having low heat dissipation efficiency, and low integration. The device includes a control board module, a 40mm diameter circular driver board module, and a dry chamber encapsulation and heat dissipation structure. The control board module integrates a main control unit, multi-stage power supply, digital isolation, and RS485 serial communication unit. The circular driver board module integrates a boost driver and a current sampling feedback unit. The two are electrically connected via plug-in terminals. The overall volume is ≤20cm³, making it suitable for small deep-sea dry chambers with an inner diameter of 45mm. The dry chamber encapsulation and heat dissipation structure constructs a complete heat dissipation path from "driver board - heat sink - dry chamber shell - seawater." It features small size, high integration, high heat dissipation efficiency, and high control precision, and can be widely used in lighting systems for various miniature deep-sea exploration equipment.

The utility model belongs to the technical field of advertisement display platforms, and particularly relates to a multimedia advertisement display platform. A base; the adjusting device is arranged on the base and comprises a rotating mechanism and a lifting mechanism, the rotating mechanism is connected with the advertising screen and used for adjusting the angle of the advertising screen, and the lifting mechanism is connected with the advertising screen and used for adjusting the height of the advertising screen; the device further comprises a moving mechanism arranged at the bottom of the base. The advertisement display device has the beneficial effects that the adjusting device comprises the rotating mechanism and the lifting mechanism, the advertisement screen can rotate in the horizontal plane due to the arrangement of the rotating mechanism, so that the advertisement display angle is adjusted to meet the watching requirements of different positions, and the height of the advertisement screen is adjusted due to the arrangement of the lifting mechanism; the advertisement display platform can meet the watching requirements of different heights, and the advertisement display platform can have high flexibility and adaptability.

The utility model provides a steam pipe, and belongs to the technical field of steam pipes, the steam pipe comprises a steam channel and a rotating structure, the steam channel and the rotating structure are clamped and fixed through a clamping piece; the water vapor channel comprises an inner pipe and an outer pipe, and the inner pipe is a Teflon pipe; the rotating structure comprises two gears formed through rotation, and when the rotating structure is located at the first gear, the water vapor channel is vertically downward; when in the second gear, a fixed inclination angle is formed between the water vapor channel and the machine body; the utility model provides a steam pipe which can solve the problem that after a steam pipe used by an existing machine body rotates, the angle is difficult to fix accurately.

The utility model relates to traffic planning and safety field especially relates to a traffic planning traffic warning device, including base, stand, lighting assembly and display component. The stand is fixed on the base, and the top of stand installs warning light, the lighting assembly and display component are installed in the both sides of top of stand respectively, the lighting assembly includes U type frame and light supplementing lamp, one end of U type frame is fixed in the top of stand, and light supplementing lamp is rotatably connected with U type frame, the display component includes branch arm no. One end of branch arm no. One end is fixed on the stand, and the other end of branch arm no. The other end is rotatably connected with branch arm no. Two, and the other end of branch arm no. Two installs display screen. The utility model discloses rotatable light supplementing lamp, can adjust the light supplementing angle according to actual lighting demand, improves the visibility of early warning information under the night or low light environment, and guarantees traffic safety.

The application discloses a negative pressure head cover capable of preventing droplet transmission and a use method thereof, and belongs to the technical field of medical devices. The negative pressure head cover comprises a sealed head cover, a sealed face cover, and a negative pressure pipe. The sealed head cover is transparent. The sealed face cover is detachably arranged on the outer side of the sealed head cover and is transparent. The negative pressure pipe is arranged on the outer side of a sterilization assembly. The application effectively solves the problem that the exhaled gas cannot be sterilized before being discharged, thereby realizing that the negative pressure pipe can extract the gas in the sealed face cover, input the gas into the inside of the sterilization assembly for sterilization, and then discharge the gas through the exhaust pipe, so that the exhaled gas of the patient can be sterilized before being discharged, the gas in the sealed head cover is prevented from being emitted into the air when the sealed head cover is removed, and the effect of preventing droplet transmission is improved.

The all-terrain vehicle comprises a vehicle frame, a vehicle body covering part, a container and an electrical system, the vehicle frame comprises a main vehicle frame body and an auxiliary vehicle frame body, and the main vehicle frame body comprises a front vehicle frame body; the vehicle body covering part comprises a front fender, and the front fender covers at least part of the front vehicle frame; at least part of the container is arranged on the frame; the electric appliance system comprises a horn which is arranged on the frame; the container comprises a front container arranged on the front frame, the front container is arranged below the front fender, and the horn is arranged below the front container and fixed to the front frame. The container comprises a container cover arranged in front of the front container, a first notch is formed in the lower edge of the container cover, and the first notch is overlapped with the horn when observed in the length direction of the frame. Through the arrangement, the horn faces the front of the all-terrain vehicle, and the container cover is provided with the first notch, so that the container cover is prevented from shielding the horn, and the transmission effect of the horn can be improved.

The utility model relates to the technical field of display equipment, and discloses folding advertisement display equipment which comprises two bases, the top ends of the two bases are rotationally connected with supporting columns, adjusting assemblies are arranged in the two supporting columns, the top ends of the adjusting assemblies are rotationally connected with a first fixing plate, and the first fixing plate is connected with a second fixing plate. A motor is fixedly connected to the interior of the first fixing plate, a positioning column is fixedly connected to the driving end of the motor, a first rotating block is rotatably connected to the exterior of the positioning column, a second fixing plate is fixedly connected to the exterior of the first rotating block, a guide groove is formed in the exterior of the second fixing plate, and a pull rod is slidably connected to the interior of the guide groove. According to the utility model, along with the rotation of the outermost rotating plate, the pull rod slides in the guide groove to pull other rotating plates in sequence, so that the plurality of rotating plates are unfolded successively, more advertisement contents can be displayed, the attraction and the propagation effect of advertisements are enhanced, and diversified display requirements are effectively met.

The invention discloses a decentralized information promotion method based on big data, and relates to the technical field of information promotion, and the method comprises the steps: obtaining the historical behavior data of a user, and carrying out the analysis to generate a user information chain; for the information needing to be popularized, a popularization matching coefficient is calculated according to the user information chain, and the information needing to be popularized is popularized to users with the coefficients larger than a threshold value; a decentralized network is arranged in an information promotion system, any node in the network can execute an information promotion task, obtain information promotion data of the node in real time, calculate the promotion influence of the node, perform descending sorting, and perform node information synchronization on high-quality information in combination with the quality score and the promotion influence of the information in the node. Through accurate information matching and personalized recommendation, efficient resource utilization of a decentralized network, information quality guarantee and efficient propagation of high-quality content, the correlation, real-time performance and effect of information promotion are improved, propagation of high-quality information is ensured, and user experience is optimized.

The invention discloses a multi-platform combined antenna communication tower of an ocean floating production device, which comprises a communication tower main structure consisting of steel pipe main body upright posts, the communication tower main structure comprises a first communication tower structure layer (1), a second communication tower structure layer (2), a third communication tower structure layer (3), a fourth communication tower structure layer (4), a fifth communication tower structure layer (5) and a sixth communication tower structure layer (6), and each communication tower structure layer is provided with a vertical ladder (8) with a protective fence (9). According to the multi-platform combined antenna communication tower of the ocean floating production device, the area of a deck platform of a ship is effectively saved, the arrangement problem of antenna communication equipment is solved, the space utilization rate of the ship is increased, and the space utilization rate of the ship is increased. And the phenomena of interference of other equipment, electromagnetic field interference, signal attenuation, adjacent high-power input damage and the like on a transceiving radio station are reduced.

The application discloses a kind of construction method and application of intelligent signal detection model, belong to mobile communication technical field;The application constructs a new type of graph neural network containing aggregation update module, the global feature of each node is aggregated with its neighbor node information, so as to extract the hidden feature state of data according to the feature information of neighbor node and itself, and then realize the effective capture of the feature of communication signal such non-euclidean space data;In addition, after each aggregation is completed, the intermediate feature obtained by aggregation is further extracted in the application Feature, to improve the expression ability of intermediate feature, so that the designed graph neural network has more efficient information interaction ability and more powerful relationship reasoning ability, greatly improve the precision of signal detection.The application effectively solves the problem that the performance and computational complexity of traditional signal detection method are difficult to balance, and has strong robustness to channel estimation error.

The utility model relates to the technical field of advertisement exhibition stands, and discloses a multi-view advertisement exhibition stand which comprises a vertical rod, a protective top is fixedly installed at the top end of the vertical rod, a fastening sleeve is arranged at the bottom of the protective top, a set of connecting pieces are distributed on the outer wall of the fastening sleeve in the circumferential direction at equal intervals, and connecting blocks are rotatably installed in the connecting pieces; one end of each connecting block is fixedly connected with an advertisement exhibition board, a supporting assembly is arranged between every two adjacent advertisement exhibition boards, and each supporting assembly comprises a reverse threaded sleeve and a threaded rod. According to the exhibition stand, the fixing holes in the fixing feet are matched with bolts, the exhibition stand can be firmly fixed to a site, and external interference is effectively resisted; due to the design of a fastening sleeve, a connecting piece and a connecting block, the advertisement exhibition board can rotate freely, the multi-angle exhibition requirement is met, and the information spreading effect is improved. The telescopic structure of the back wall of the advertisement exhibition board can flexibly adjust the supporting length according to the specification of the exhibition board to ensure stable exhibition.