110results about How to "Improve viewing effect" patented technology

The invention discloses a display screen calibration method and system, a product and a medium, and relates to the technical field of display screen correction, and the method comprises the steps: collecting the position feature data of a target edge user, and calculating the partition parameters of a target display screen based on the position feature data; the target display screen is divided into a plurality of dynamic display areas based on the partition parameters, each dynamic display area comprises a plurality of gradient overlapping boundaries, the width of the gradient overlapping boundaries is dynamically adjusted according to the visual parameter difference value of the adjacent display areas, and the display compensation value of each dynamic display area is calculated according to the visual parameters; and generating calibration image data based on the display compensation value, and outputting the calibration image data to each dynamic display area. By implementing the method, the display screen watching experience of edge users can be improved.

The utility model discloses a single-screen conference tablet computer which comprises a tablet computer assembly. Comprising a base, a rotating shaft rotationally installed at the top end of the base, a protective shell fixed to the top end of the rotating shaft, a single-screen flat plate placed in an inner cavity of the protective shell and rotating rods symmetrically fixed to the outer wall of the single-screen flat plate and rotationally installed on the protective shell. The adjusting assembly comprises a first fixing plate fixed to the outer wall of the protective shell, an electric push rod fixed to the first fixing plate, a first rack fixed to the electric push rod and a gear fixed to the rotating rod and engaged with the first rack. And a first limiting groove is formed in the side wall of the first rack, a limiting plate is fixed to the outer wall of the protection shell, and the other end of the limiting plate is inserted into the first limiting groove, so that the comfort of a user and the watching effect of a watcher can be improved.

The invention relates to the technical field of food processing, in particular to a holographic display system based on artificial intelligence, which comprises a display module, an artificial intelligence control module, a safety protection module and a noise reduction module, the display module comprises a plane holographic unit and a three-dimensional holographic unit, and the three-dimensional holographic unit is arranged in the plane holographic unit; the artificial intelligence control module enables the projection of the transmission image of the plane holographic unit and the projection of the three-dimensional image in the three-dimensional holographic unit on the plane where the plane holographic unit is located to be completely overlapped through a deep learning algorithm. According to the holographic display system, the display module, the artificial intelligence control module, the safety protection module and the noise reduction module are arranged, so that the intelligence and the safety of the holographic display system are realized. And the plane holographic unit and the three-dimensional holographic unit of the display module are combined, so that the image display is more three-dimensional and vivid. And the artificial intelligence control module ensures accurate superposition of the images through a deep learning algorithm, so that the accuracy and reality of the display effect are improved.

The invention relates to the technical field of computers, and provides a browser webpage spatialization method and device which are applied to a server side or augmented reality equipment to determine a first target element from webpage elements of a two-dimensional webpage. Configuring style attribute information of the first target element in the three-dimensional space, and obtaining a spatialized webpage code according to the code of the two-dimensional webpage and the style attribute information of the first target element; and sending the spatialized webpage code to the augmented reality device. The augmented reality device analyzes the spatialized webpage code and renders the spatialized webpage code to obtain a texture picture; extracting attribute information of the first target element in the texture picture and style attribute information of the first target element from the spatialized webpage code; and according to the texture picture, the attribute information of the first target element in the texture picture and the style attribute information of the first target element, drawing and displaying a spatialized webpage. According to the invention, the three-dimensional space can be fully utilized, the user interaction range can be dispersed, and the interaction precision and experience can be improved.

The utility model relates to the technical field of showing stands, and provides a project cost drawing showing stand which comprises a base, a support and a drawing showing board. The support is vertically arranged on the base in a supported mode, the drawing display board is connected to the support, a flashing board is further arranged on the top of the support in a supported mode, the flashing board is located above the drawing display board and arranged opposite to the drawing display board, and the projection of the flashing board on the horizontal plane covers the projection of the drawing display board on the horizontal plane; a plurality of universal wheels are installed at the bottom of the base, and a plurality of balancing weights are further arranged on the base. The drawing has the effect of reducing the abrasion of the drawing while the drawing is conveniently used on a construction site.

The utility model relates to the technical field of projection equipment, and discloses an adjustable screen for projection screen equipment, which comprises a base, a driving motor is arranged in the middle of the bottom of the inner side wall of the base, the output end of the driving motor is connected with a rotating rod, and the upper side wall of the rotating rod penetrates through the middle of the upper side wall of the base. And the middle position of the lower side wall of the rotating disc is connected with the middle position of the upper side wall of the rotating rod, an adjusting seat is installed in the middle position of the upper side wall of the rotating disc, and a double-shaft motor is installed in the middle position of the bottom of the inner side wall of the adjusting seat. The controller is used for controlling the output end of the driving motor installed in the middle of the bottom of the inner side wall of the base to drive the rotating rod to rotate, the rotating rod acts on the rotating disc, and the rotating disc drives the adjusting base to rotate along with rotation of the rotating rod. Therefore, the projection screen mounted on the inner side wall of the mounting frame is driven to rotate left and right, and the angle of the whole equipment can be conveniently adjusted.

The utility model provides a front windshield electric sunshade curtain and a vehicle, and belongs to the technical field of vehicles, the front windshield electric sunshade curtain comprises a driving motor, a rotating bracket, two groups of rolling and opening connecting rod mechanisms and a sunshade curtain assembly; the rotating bracket is assembled on a main shaft of the driving motor; the two groups of winding and opening connecting rod mechanisms are symmetrically connected to the rotating bracket by taking a main shaft of the driving motor as a symmetry axis and are respectively positioned on the left side and the right side of the driving motor; the two groups of winding and opening connecting rod mechanisms rotate along with the driving motor and move in the left-right direction in the same direction or in the opposite directions at the same time; the sunshade curtain assembly comprises a retractor, a sunshade curtain wound on the retractor and a bottom rod arranged at the free end of the sunshade curtain; a sliding rail extending in the left-right direction is arranged on the bottom rod, and the execution end of the rolling and opening connecting rod mechanism is connected to the sliding rail of the bottom rod in a sliding mode to drive the sunshade curtain to be rolled upwards or unfolded downwards. The system has the advantages of being easy to operate, high in driving safety, reliable in-vehicle curtain film watching and good in-vehicle layout visibility.

The invention relates to the technical field of travel content recommendation, in particular to a travel content recommendation system based on meta universe, which comprises a travel content recommendation platform, a classification item matching unit, a refining matching unit, a content division unit and a video sorting unit, according to the method, reasonable recommendation is carried out on the text travel content of the meta universe in a layer-by-layer progressive mode, so that the matching degree of text travel content recommendation and the watching effect of the user are improved, and video division feedback analysis is carried out on the text travel content classification items interested by the user in an information feedback mode; therefore, the tendency of the user to the playing duration of the played video in the main recommendation item or the priority recommendation item is known from the historical perspective, the played video is further divided and matched, and playing sequence information processing recommendation analysis is deeply performed on the scenic spot popularity information. And reasonable travel content recommendation can be carried out according to the interest tendency of the user and the popularity of the scenic spot in the played video content.

The invention relates to the technical field of display screen control, solves the problem that in the prior art, effective rotation interaction control cannot be carried out on an LED magic cube display screen, and provides a rotation interaction display adjusting method, device and system of the LED magic cube display screen. The method comprises the following steps: acquiring interaction duration and real-time position information; obtaining a buckle position and a display screen orientation; the LED magic cube display screen is rotated, and when the LED magic cube display screen is rotated to a target buckling position, the orientation of a target display screen is determined; according to the real-time position information, the orientation of the display screen where the interaction position is located is compared with the orientation of the target display screen, a main display area and a secondary display area are determined according to the orientation comparison result and the comparison result of the interaction duration and the duration threshold value, and original display parameters of the main display area are adjusted to main display parameters. And adjusting the display parameter of the secondary display area to the secondary display parameter. According to the invention, a more flexible and diversified rotating interaction effect on the LED magic cube display screen can be realized.

The utility model relates to the technical field of display screens, in particular to a light-emitting diode (LED) display screen structure, which comprises a mounting mechanism, a light-emitting diode (LED) module and a light-emitting diode module, the moving mechanism is arranged on the mounting mechanism; the two supporting arms are arranged on the moving mechanism, and connecting shafts are arranged in supporting arm mounting holes; the two mounting pieces are rotationally mounted on the two connecting shafts respectively, and connecting rods are rotationally arranged on the mounting pieces; the two fixing seats are rotationally arranged on the two connecting rods respectively; the two display screens are respectively mounted on the two fixed seats; the adjusting mechanism is arranged on the mounting mechanism and is used for adjusting the working height of the two display screens driven by the moving mechanism; the adaptability is high, the operation is flexible, and the film watching effect is improved.

The invention discloses an intelligent display device, and relates to the technical field of e-commerce teaching. The device comprises a display composite assembly, an article placement assembly is installed on one side of the display composite assembly, the display composite assembly plays a display role, the article placement assembly plays a role in assisting the display composite assembly in displaying, and the display composite assembly comprises an adjusting display module and a cleaning module. And a cleaning module is mounted on the side, close to the article placement assembly, of the adjusting display module, and the cleaning module plays a role in cleaning the adjusting display module. Through the arrangement of the display composite assembly, the stable effect of the display device can be kept when the display range of the display device is adjusted, and meanwhile, the display device can be prevented from being shielded by a cleaning part when the display device is cleaned, so that the effect that students watch the display device can be improved.

The utility model belongs to the technical field of traffic engineering, and particularly relates to a guide board for traffic engineering, which comprises a guide board body. A base is arranged on the side wall of the guide board body; the side wall of the base is fixedly connected with a sliding cylinder; the inner side wall of the sliding cylinder is slidably connected with a sliding rod. The sliding rod is fixedly connected with the guide board body; firstly, a worker holds and pulls a pull rod, under the sliding fit of a sliding rod and a sliding barrel, after the guide board body is moved and lifted to a proper height, the pull rod is loosened, an insertion rod is pushed into the side wall of a groove, and in the process, the problems that the height of an existing guide board body is difficult to adjust, and the guide board body is inconvenient to adjust can be solved. When the guide board is used, the guide board is easily blocked by a green belt beside a road and is difficult to perceive by vehicles and pedestrians, the use effect of the guide board body is affected to a certain extent, at the moment, the height of the guide board body can be adjusted when the guide board body is used through sliding fit of a sliding barrel and a sliding rod, and the practicability of the guide board body is improved.

The utility model relates to the technical field of display board devices, and discloses an adjustable display board which comprises a fixing frame, a storage mechanism is arranged at the front end of the inner wall of the fixing frame, a base is arranged below the fixing frame, and an adjusting mechanism is fixedly connected to the upper end of the base. The storage mechanism comprises a fixing groove, the fixing groove is formed in the front end of the inner wall of the fixing frame, a first spring is fixedly connected to the front end of the inner wall of the fixing groove, a pressing plate is fixedly connected to the rear end of the first spring, and a connecting column is fixedly connected to the front end of the pressing plate. According to the adjustable display board, the fixing frame is used, and the pressing plate, the first spring and other parts are used in a matched mode, so that the pressing plate can compress the display board needing to be displayed through the elasticity of the spring, the display board can be fixed in the fixing frame through the use of the top cover, and when the display board is replaced and detached, use is very convenient; and the workload of operators is reduced.

The present invention relates to the field of liquid crystal display technology, and discloses a method, system, and chip for reducing the power consumption of a timing control chip of a liquid crystal panel, including obtaining historical viewing data of a user, building and training a user visual preference prediction model; collecting the user's visual attention data and display content data in real time, and determining the focus area on the liquid crystal panel in combination with the prediction model; dividing the liquid crystal panel into high, medium, and low resolution areas and setting corresponding pixel density and refresh frequency thresholds; performing visual saliency analysis on the display content to determine key salient areas and non-key salient areas; performing local refresh in different resolution areas, wherein the refresh frequency of the key salient area is higher than the refresh frequency of the non-key salient area. The system includes multiple modules to implement the above method. The chip adopts the system and method, and can effectively reduce the power consumption of the timing control chip of the liquid crystal panel.

The connector welding device with the positioning and clamping functions comprises a smoke suction welding structure installed on a positioning and clamping structure, the smoke suction welding structure comprises a hollow installation body with the interior being of a hollow structure, and a plurality of protruding limiting blocks for relative adjusting and limiting are arranged on one side of the hollow installation body in a surrounding mode; meanwhile, the hollow mounting body penetrates through the mounting ring through a convex limiting block and is connected with a guide limiting groove formed in the mounting ring, fixing rods mounted on the connecting ring are sequentially arranged on the outer ring of the mounting ring, and a welding head welded to the connector is arranged in the connecting ring; and a through hole facilitating connection of the corrugated pipe is formed in the welding head through one side of the connecting ring in a penetrating mode, meanwhile, one end of the corrugated pipe is connected with the fan, the fan and the purification filter box are mounted through the mounting frame, and the purification filter box and the hollow mounting body are both mounted on the mounting table. And through the arranged fixing rods, the connecting, stress and supporting effects are achieved.

The utility model relates to the technical field of oil painting display, in particular to an art oil painting display device which comprises a rotary supporting mechanism, the rotary supporting mechanism comprises a supporting column, a servo motor is fixedly connected to the interior of the supporting column, a motor shaft of the servo motor is in transmission connection with a transmission shaft, and a rotary disc is fixedly connected to the top end of the transmission shaft. The bottom face of the rotating disc is rotationally connected with the top face of the supporting column, a plurality of connecting bases are fixed to the outer wall of the rotating disc at equal angles, and mounting grooves are formed in the outer walls of the connecting bases. According to the oil painting display device, the servo motor, the transmission shaft and the rotating disc are arranged in a matched mode, so that 360-degree stable rotation can be achieved when an oil painting is displayed, and multi-angle viewing experience is provided for audiences. Through cooperative arrangement of the adjusting mechanism and the display mechanism, the device can display oil paintings of different sizes, and the angle of the display mechanism in the pitching direction can be adjusted, so that the watching effect is improved.

The embodiment of the invention provides near-eye display equipment, and relates to the technical field of augmented reality. The near-to-eye display equipment comprises a mirror frame, an imaging assembly and a correction structure, the imaging assembly comprises a light machine and a display lens which are arranged on the frame, and the light machine can emit light towards the display lens along a set light path; the display lens is provided with an environment side and a user side which are opposite, and the display lens can obtain light rays from the light machine and can emit light towards the user side along a set light path; the correction structure comprises a mounting frame and a correction lens; the mounting rack is detachably connected with the glasses frame; the correction lens is arranged on the mounting rack, and is positioned on the user side of the display lens when the mounting rack and the lens frame are fixed. According to the invention, the image formed by the near-eye display device on the retina of the user is clearer, and the watching effect of the user wearing the near-eye display device is improved.

The utility model relates to the technical field of data analysis and display, and discloses a data analysis and display multi-screen device which comprises a supporting table, a fixing frame is fixedly connected to the rear portion of the upper end of the supporting table, and moving grooves are formed in the front portion and the rear portion of the inner wall of the upper end of the fixing frame. And moving lead screws are rotationally connected between the inner walls of the opposite sides of the two moving grooves, first positioning grooves are formed in the positions, close to the front portion and the rear portion, of the upper end of the supporting table, first positioning rods are fixedly connected between the inner walls of the two sides of the two first positioning grooves, and the outer walls of the two moving lead screws are sleeved with moving sliding blocks in a threaded mode. According to the display device, the display split screens and the moving mechanism are arranged, so that the two display split screens can be unfolded towards the corresponding sides, the display main screen arranged in a matched mode can display the content to be displayed in a multi-screen mode, and the shielding frame, the fixing frame and the lifting mechanism are arranged, so that the display main screen and the display split screens can be fully shielded.

The utility model discloses a construction safety alarm, which relates to the technical field of safety construction and comprises a supporting bottom shell, a supporting base is fixedly mounted at the top of the supporting bottom shell, a telescopic column is fixedly mounted at the top of the supporting base, and a placement bottom plate is slidably mounted at the top of the telescopic column. And a liquid crystal display screen is fixedly mounted at the top of the placement bottom plate. Through mutual cooperation of the motor, the adjusting groove, the threaded rod, the threaded sleeve block, the cleaning brush, the supporting frame, the sliding groove, the sliding block and the connecting frame, the problem that a liquid crystal display screen on the alarm is usually arranged outdoors, the surface of the liquid crystal display screen is stained with a large amount of dust and sundries, and the watching effect of people on the liquid crystal display screen is poor is solved. According to the liquid crystal display screen, the function of convenient cleaning is achieved, dust and sundries attached to the surface of the liquid crystal display screen are effectively cleaned, manual cleaning is not needed, the watching effect of the liquid crystal display screen is improved, and information warning is better prompted for people.

The disclosed embodiments provide a transparent display device and a preparation method, which relate to the field of display technology and can improve contrast. The transparent display device includes a liquid crystal box and a light source arranged opposite to the side thereof. The liquid crystal box includes a first substrate, a second substrate, a first electrode on the first substrate, a second electrode on the first substrate or the second substrate, a liquid crystal layer, a plurality of signal lines and a shading pattern. The liquid crystal layer sandwiched between the first substrate and the second substrate includes polymer molecules and liquid crystal molecules, which are used to cause total reflection or scattering of light incident on the liquid crystal layer under the control of the electric field provided by the first electrode and the second electrode. At least one of the plurality of signal lines on the first substrate and in the display area has a bottom surface close to the first substrate and a reflective side surface connected to the bottom surface and facing the light source, and the slope angle formed by the reflective side surface and the bottom surface is an acute angle. The shading pattern is on the second substrate and on the reflection path after the light emitted by the light source is irradiated to the reflective side surface.

The utility model relates to the technical field of neotame processing, and discloses an automatic neotame feeding reaction kettle which comprises a reaction kettle body, a supporting frame and a feeding mechanism, the supporting frame is arranged on the other side of the reaction kettle body and connected with the feeding mechanism, a first motor is installed at the position, close to the upper end, of the middle of one side wall of the feeding mechanism, and a second motor is installed on the other side wall of the feeding mechanism. The output end of the first motor is connected with a transmission rod, the other end of the transmission rod is connected with a driving gear, the middle position of the lower side wall of the driving gear is meshed with a driven gear, and the driven gear is rotationally connected with a stirring assembly. According to the utility model, the driven gear acts on the stirring assembly for synchronous rotation, so that the problem that the neotame raw materials are moist due to environmental influence when the equipment is not used and are bonded together to influence the quality of the raw materials is avoided, and the neotame raw materials adsorbed on the inner wall of the feeding mechanism are scraped by the scrapers mounted on the two side walls of the stirring assembly, so that the stirring efficiency is improved. The raw material utilization rate is improved.

The present invention provides a method for managing a TV startup page, comprising: monitoring a startup signal of a remote control device; obtaining the number of people watching in front of the TV in response to the startup signal, and determining whether the number of people watching is greater than one person; if not, obtaining the identity information of the remote control device holder, and displaying a license owner page pre-bound to the identity information according to the identity information; if yes, obtaining the identity information of a main person among all the viewers; and displaying a license owner page pre-bound to the identity information of the main person according to the identity information of the main person. The method solves the technical problem in the prior art that the user's preferred license owner page cannot be quickly accessed when the smart TV is turned on.

The utility model discloses an LED display screen with a waterproof function, which relates to the technical field of LED display screens and comprises an external component, a main body component and a connecting component. A sliding block is arranged on the outer surface wall of the threaded rod, a wiping rod is installed on one side of the sliding block, a motor is arranged on one side of the threaded rod, and a rotating shaft is installed at the output end of the motor; the waterproof box comprises a waterproof joint, a waterproof coating and a waterproof adhesive tape, the waterproof joint is arranged at each joint of the waterproof box, the connecting component comprises a bottom plate, two connecting columns are mounted on the upper surface of the bottom plate, and a crawling ladder is mounted on the upper surface of the bottom plate. The overall sealing performance of the display screen can be enhanced by arranging the waterproof joint, the waterproof coating and the waterproof adhesive tape at each joint of the waterproof box; the design of the waterproof box and the visual glass panel can prevent water from directly damaging internal electronic components, so that the service life of the display screen can be prolonged, and faults and maintenance cost caused by the water are reduced as much as possible.

The bottle breaking device for the ship bottle throwing gift comprises a stand column, the stand column is provided with a first connecting part and a second connecting part, the first connecting part is higher than the second connecting part, and the bottom end of the stand column is provided with an installation part used for being installed on a ship body; the swing rod is rotationally arranged on the second connecting part, a containing cavity used for containing the bottle body is formed in the swing rod, and the containing cavity is provided with an exposed section; the bottle breaking piece is arranged on the stand column and located below the second connecting part, and at least part of the bottle breaking piece is located in the rotating path of the exposed section; the wire bunching rod is provided with a wire bunching hole, the wire bunching rod is rotatably arranged on the first connecting part so as to be switched between a storage position and an unfolding position, the wire bunching hole is close to the stand column when the wire bunching rod is arranged at the storage position, and the wire bunching hole is far away from the stand column and higher than the second connecting part when the wire bunching rod is arranged at the unfolding position. According to the bottle breaking device for the ship bottle throwing gift, the bottle breaking device is convenient to install and transport, and the viewing effect of the bottle throwing gift is achieved.

The invention provides a near-to-eye display device capable of reducing image interference based on thickness, which comprises a display, an imaging lens, a plain film light splitting assembly and a concave film light splitting assembly, and is characterized in that the display is used for outputting a display picture, and the imaging lens is used for refracting projection light of the display picture and converging the projection light to the plain film light splitting assembly; the flat sheet light splitting assembly is used for reflecting part of converged light rays of a display picture to the concave sheet light splitting assembly, the concave sheet light splitting assembly is used for reflecting the reflected light rays to the flat sheet light splitting assembly again and then enabling the reflected light rays to enter human eyes, and the concave sheet light splitting assembly is sequentially provided with a first 1 / 4 phase delay film layer, an adhesive layer, an optical film and a concave surface substrate. The thickness of the first 1 / 4 phase delay film layer is T1, the thickness of the adhesive layer is T2, and T1 + T2 is smaller than 10 microns. By setting the thicknesses of the first 1 / 4 phase delay film layer and the adhesive layer in the concave light splitting assembly, the interference of an interference image on an expected image is reduced, so that the expected image is presented more clearly, and the viewing effect is greatly improved.

The invention provides a near-to-eye display device and a head-mounted display, the near-to-eye display device comprises a display, an imaging lens, a plain film light splitting assembly and a concave film light splitting assembly, the display is used for outputting a display picture, and the imaging lens is used for refracting projection light of the display picture and converging the projection light to the plain film light splitting assembly; the flat sheet light splitting assembly is used for reflecting part of converged light rays of a display picture to the concave sheet light splitting assembly, the concave sheet light splitting assembly is used for reflecting the reflected light rays to the flat sheet light splitting assembly again and then enabling the reflected light rays to enter human eyes, and the concave sheet light splitting assembly is sequentially provided with a first 1 / 4 phase delay film layer, an adhesive layer, an optical film and a concave surface substrate. The difference between the effective refractive index of the adhesive layer and the effective refractive index of the first 1 / 4 phase delay film is a, and a is larger than-0.05 and smaller than 0.05. By setting the thickness and / or refractive index difference of the first 1 / 4 phase delay film layer and the adhesive layer in the concave light splitting assembly, the interference of an interference image on an expected image is reduced, so that the expected image is presented more clearly, and the viewing effect is greatly improved.

The invention discloses an augmented reality near-to-eye display device and method based on multiple layers of light guide plates. The augmented reality near-to-eye display device comprises a multi-layer light guide illumination device, a micro display device, a light source controller, an eye movement tracking device, a main control module and the like. The light sources in the double-layer or multi-layer light guide lighting device are sequentially lightened, the light guide plate receives light from the light sources and transmits the light, the light is emitted through the dot matrix lists on the light guide plate to form a point light source array and then illuminates the micro-display device, and the micro-display device synchronously displays two-dimensional images of the light guide plate on the corresponding layer and enters pupils of human eyes so that the corresponding images can be watched. A corresponding image sequence loaded to the micro-display device is calculated through the main control module, and images on different depth focusing planes are fused with a real scene, so that an augmented reality type three-dimensional image can be always seen in a human eye pupil movement process, and therefore, augmented reality near-to-eye display is realized; the problems of convergence adjustment conflicts and too small field angle in the near-to-eye display device are effectively solved.

The utility model relates to the technical field of furniture sales, and discloses a rotary display device for furniture sales, which solves the problem that the current furniture is easy to topple over and be damaged in the rotating process, and comprises a base, locking universal wheels are fixedly arranged at the bottom of the base close to four corners, and the locking universal wheels are arranged on the base. A rotating mechanism is installed at the top of the base, a limiting mechanism is installed on the rotating mechanism, the limiting mechanism comprises a placing table located above the base, and two L-shaped plates are symmetrically and fixedly installed on the outer side of the placing table; according to the utility model, through the cooperation among the motor I, the bidirectional lead screw and the nut, the two guide plates can slide along the two guide grooves respectively, then the two sliding plates can be close to each other, and through the cooperation among the movable rods and the sliding plates and the cooperation among the limiting discs and the springs, the limiting discs can be tightly attached to furniture; and therefore, the furniture can be conveniently clamped and limited, and the furniture is prevented from toppling and being damaged in the rotating process.

The utility model relates to the technical field of propaganda racks, in particular to an outdoor knowledge propaganda rack convenient to observe at night, which comprises a display board and a mounting board, sliding rails are mounted on two sides of the front end of the display board, motors are mounted at the lower ends of the sliding rails, screws are connected in the sliding rails, and the screws are fixedly connected with output shafts of the motors. Sliding blocks are in threaded connection with the outer sides of the screw rods, movable rods are installed in the middles of the two sliding blocks, and cleaning cloth is arranged at the rear ends of the movable rods and attached to the display board; a photosensitive sensor is installed at the upper end of the display board, four LED bulbs are installed in the display board, and a controller is installed in the installation board. According to the utility model, the defects in the prior art are overcome, the watching effect at night is effectively improved by arranging the photosensitive sensor, the controller and the LED bulb, the waste of redundant energy can be avoided, and the workload of workers is effectively reduced by arranging the sliding rail, the motor, the screw rod, the sliding block, the movable rod and the cleaning cloth.

The invention discloses image acquisition equipment and an exposure control method and device. The image acquisition equipment comprises a controller, a digital signal processor and at least one image sensor group, the image sensor group comprises a first image sensor and a second image sensor which are longitudinally adjacent and have an overlapping area. The controller determines the exposure time difference of the first image sensor and the second image sensor; and according to the exposure time difference, respectively sending a frame synchronization signal to the first image sensor and the second image sensor. The first image sensor and the second image sensor respectively perform exposure according to the exposure starting time received by the first image sensor and the second image sensor, convert the received ambient light signal into an electric signal, and send the electric signal to the digital signal processor; and the digital signal processor is used for generating an image according to the received electric signal. Compared with a longitudinal splicing scheme in the prior art, the method has the advantages that the continuity when the moving object passes through the whole image splicing seam is improved, and the image watching effect is improved.