300results about How to "Strong visual impact" patented technology

The invention discloses a melamine veneer and a preparation method thereof, and belongs to the technical field of decorating materials. The melamine veneer is composed of a substrate and melamine impregnated paper. The melamine impregnated paper is obtained by impregnating paper in a melamine resign adhesive and processing the impregnated paper. The melamine resin adhesive has better activity as the formula thereof is determined by repeated tests. The melamine veneer has a simple processing technology, which causes the melamine resin adhesive to be more evenly and thoroughly immersed into decorating paper. The veneer formed by pressing has a plurality of advantages of the traditional melamine veneer such as high hardness, good abrasion resistance and good heat resistance, good chemical resistance, smooth and clean surface, easy maintenance and cleaning and the like, and further has the advantage of high luminance.

The invention discloses a method for manufacturing a transfer film. The method comprises the steps of (1) manufacturing a master die with Fresnel lens patterns and laser graph patterns, and then electroforming to form a die-pressing working plate; (2) mounting the die-pressing working plate on a die-pressing roller, coating a layer of ultraviolet curing embossed coating on a lower surface of a plastic film and enabling the ultraviolet curing embossed coating to be closely contacted with the die-pressing roller, and then curing the coating layer; (3) separating the ultraviolet curing embossed coating layer from the die-pressing working plate to obtain a transfer film. A method for manufacturing transfer aluminum-plating paper comprises the follow-up steps on the basis of the transfer film: (4) plating aluminum on the ultraviolet curing embossed coating layer to form an aluminum-plating layer; (5) coating a layer of oil paint on the aluminum-plating layer and then drying; (6) compounding the transfer film with printing paper, and then separating the ultraviolet curing embossed coating layer from the aluminum-plating layer to obtain the transfer aluminum-plating paper. According to the method, clear Fresnel lens patterns and laser graph patterns can be formed on the transfer film and the transfer aluminum-plating paper.

The invention discloses a camera device for the holography congealing effect of moving objects in videos and advertisements, and a photography method thereof. The camera device is provided with a plurality of photography recording units, a track, a controller and a control signal transmission component, wherein, the plurality of photography recording units are mounted on the track, the controller is connected with the control signal transmission component which is in connection with each photography recording unit, and the controller controls and adjusts the photography recording units to shoot at the same time or shoot at a certain interval. The holography congealing photography method of the camera device comprises designing of the camera device, installing, debugging, shooting, data outputting, and post-processing. According to the invention, the plurality of photography recording units are combined regularly to form a photography system and shoot under the control of the controller orderly shoot an object at the same time or in a certain interval so as to obtain the panorama image record which has strong visual impact after being post-processed and edited.

The invention provides a large-span railway desk type concrete arch bridge structure. When transverse and longitudinal rigidities and stresses of the arch bridge structure are preferably satisfied, construction difficulties and construction risks of a main arch ring and an arch structure can be reduced, and engineering cost is greatly reduced. The large-span railway desk type concrete arch bridge structure comprises the main arch ring (1), a border pier (21), an arch beam (3), an arch column (4) and an arch support foundation (5), wherein arch feet on two sides of the border pier (21) and the main arch ring (1) are supported on the arch support foundation (5); the arch beam (3) is supported on the main arch ring (1) by the arch column (4). The main arch ring (1) is equal-height single-box and multi-chamber section box-like plate arch; the arch top of the main arch ring is an equal-width section (11); and arc foot parts close to two sides of the main arch ring are linear widened sections (12). The border pier (21) forms a border pier T structure (2) together with a T structure beam (22) fixedly connected with the top end of the border pier (21); and the arch beam (3) is a multi-span continuous beam.

The invention relates to the technical field of wallpapers, and particularly relates to sand wallpaper and a preparation method thereof. The sand wallpaper comprises a base material layer, a printing layer and a sand layer, which are sequentially arranged, wherein the sand layer is prepared from the following raw materials in parts by weight: 100 parts of modified acrylic resin emulsion, 40-100 parts of a packing composition, 0.5-5 parts of an adhesion auxiliary and 0.1-3 parts of a thickening agent; and the packing composition is prepared from packing A, packing B and packing C at the ratio in parts by weight of (4-100) to (2-5) to 1. The sand wallpaper is simple in process, and has a distinct stereoscopic vision, a strong sense of touch, and a good three-dimensional effect.

The invention relates to an encoding method and a decoding method for a color two-dimensional code, and belongs to the technical field of computers and two-dimensional codes. The encoding method comprises the following steps: step one, enabling all colors needing to be used by the two-dimensional code to correspond to corresponding numerical values in a one-to-one correspondence mode; step two, converting information to be expressed into single characters one by one; step three, converting the single characters into ASCII (American Standard Code for Information Interchange) codes; step four, converting the ASCII codes into N-system digits; step five, converting the digits into different colors; step six, filling a matrix graph with the colors in the step five to form the color two-dimensional code. The encoding method and the decoding method for the color two-dimensional code provided by the invention is good in practicability, can overcome the problems that a traditional two-dimensional code is low in information storage content and poor in compatibility and cannot express complicated pictures and scenes; meanwhile, the color two-dimensional code has rich colors and relatively strong visual impact.

The invention discloses a button with a hammer effect and a preparation method of the button. The button comprises a base material, and a coating with a hammer effect is sprayed onto the base material and is a mixture of hammer paint, a curing agent and a diluent with the ratio in parts by weight of 1: (0.2-0.3): 0.5. The preparation method comprises the following steps of: processing the base material: carrying out water-grinding treatment on the base material to be sprayed to guarantee that the surface of the base material is clean without pollution; spraying, wherein the viscosity of the coating is controlled for 14s-20s, and then the coating is sprayed onto the base material; and molding, namely naturally drying or stoving the base material with the coating. The button provided by the invention is strong in visual impact and decoration function, simple in preparation method and beneficial to waste reduction, and also has good performance of scratch resistance, friction resistance, shock resistance, washing durability and general chemical corrosion resistance; and the raw materials are easily available, and suitable materials are more.

The invention discloses a holographic laser printing transfer film and a production process for a metal package. The transfer film comprises a plastic substrate layer, a UV release layer, an information layer, an ink layer, an aluminum reflecting layer, a hot melt adhesive layer and a metal substrate layer which are superposed sequentially. According to the holographic laser printing transfer film of the above structure, the UV release layer, the information layer, the ink layer, the aluminum reflecting layer, the hot melt adhesive layer and the metal substrate layer are combined tightly and mutually and are all high in elongation, and cracks are avoided during composite stripping and punching forming. Compared with existing common metal printing package materials, the holographic laser printing transfer film has a holographic laser anti-counterfeiting function and high visual impact force, meets the requirements of the properties such as impact resistance, surface hardness, stretchability and heat resistance in aftertreatment, and meets the test requirement for the metal package in the subsequent machining procedure. In addition, according to the production process for the metal package, metal printing equipment is omitted, and the cost of a common metal package process is reduced significantly.

The invention relates to a Kinect-based 3D virtual dressing mirror realization method. The Kinect-based 3D virtual dressing mirror realization method comprises steps of establishing a skeleton node array, obtaining an initial three-dimensional virtual clothes model and adding virtual skeleton nodes to obtain a three-dimensional clothes model, obtaining practical skeleton nodes of a user, performing a skeleton node correlation operation with the skeleton node array to obtain a human body virtual skeleton model, performing a skeleton node correlation operation on the three-dimensional virtual clothes model and the human body virtual skeleton model to obtain a three-dimensional linkage skeleton node model, and importing the three-dimensional linkage skeleton node model into a virtual scene to obtain a three-dimensional virtual clothes effect animation. The Kinect-based 3D virtual dressing mirror realization method and system realize linkage between the three-dimensional virtual clothes model and skeleton points, obtain practical skeleton information of the user through a somatosensory sensor, enable the three-dimensional virtual clothes model to be matched with the skeleton points of the user body skeleton information to form linkage, enable the three-dimensional virtual clothes model to move along the motion of the user, can let a user experience dressing effects in various motions and build up a vivid dressing experience.

The invention discloses a laser projection type anti-counterfeit label and a preparation method thereof, and belongs to the fields of optical anti-counterfeiting and micro-nano processing. The surface of the label is provided with a single layer or multiple layers of disordered nano-scale embossment structures, and an anti-counterfeiting image can be presented after laser irradiation. The surface structure of the label is obtained by means of computer aided optical design, and by means of diffraction optics and Fourier optics, the anti-counterfeiting image is converted into a phase modulation structure on the surface of the label. Under the same incident light condition, different anti-counterfeiting images are corresponding to different label surfaces. The preparation method of the label comprises the steps of preparing a mother template by mean of optical etching, prepaing a nickel template by means of electroplating, and preparing the label by means of nano-impression. The laser projection type anti-counterfeit label has the advantages that a common laser pen is used as an identification tool, the projected anti-counterfeit image is high in brightness and strong in visual impart force, and different from the characteristics of a common laser holographic label that an optical variable image is low in contrast and difficult to discriminate, the laser projection type anti-counterfeit label can effectively improve the anti-counterfeit performance.

The related control method for LED used as decorative lighting lamp comprises: applying IR technology to remote control the LED, using MCU or ASIC to code or random control signal, arranging an external analog electric signal input interface and pre-set remote control coding data memory, using embedded-MPU to receive signal and generate digital PWC signal to control RGB current of every LED. This invention is benefit to build individual dynamic lighting atmosphere.

The image processing method for specifying dot arrangements for respective ink components according to image data, when forming an image on a recording medium by means of dots of inks of n colors, where n is any positive integer, the method comprises the steps of: calculating color correlation and spatial frequency components from the image data; specifying a dot overlap function for controlling overlapping between dots of the ink components, according to the calculated color correlation and spatial frequency components; calculating an ink recording rate of each of the inks from the image data; specifying the dot arrangement of a first ink component by means of a prescribed method, according to the ink recording rate; and determining a dot arrangement for the inks of the n colors, in such a manner that, taking k to be an integer where 2≦k≦n, the dot arrangement of the kth ink component is specified according to the ink recording rate of the kth ink component, and the previously specified dot arrangement and dot overlap function of the first ink component through to the (k−1)th ink component.

The invention relates to a pet food, and in particular relates to a novel branded pet food. The novel branded pet food is prepared by the steps of clearing up fresh meat raw material, and chopping the meat raw material which is cleared up into meat paste; evenly mixing all ingredients with the meat paste in sequence, and taking the mixture as an initial material; molding the initial material by hand or a molding machine; steaming the molded material in a state of boiling water; cooling and then hanging pulp in the prepared feed liquid; drying the product until the water content is 22+ / -2%; branding on the upper surface or the lower surface of the product; cutting the product into a certain shape to obtain the novel branded pet food. The novel branded pet food provided by the invention is reasonable in technology and formulation, and is excellent in color, taste and texture on the basis of guaranteeing the nutrition of the product to be balanced; the finished product has the color and the empyreumatique of barbecue, is neither too hard, nor too soft in texture and does not adhere teeth; the novel branded pet food is warped with pulp and has brand, so that the product appearance is novel and unique and has strong visual impact, and defects of the existing pet food in the respect can be made up.

The invention relates to a naked-eye 3D mobile phone backboard film and a preparation method thereof as well as a mobile phone. The naked-eye 3D mobile phone backboard film comprises a transparent film layer, wherein a micro lens array layer is arranged on the front surface of the transparent film layer; a microstructure pattern layer and a local printing layer are sequentially arranged on the back surface of the transparent film layer; a supporting layer is arranged on the back surface of the local printing layer; and the micro lens array layer comprises a plurality of micro lenses arranged in an array. The naked-eye 3D mobile phone backboard film is remarkable in stereoscopic impression, rich in appearance display effect, capable of presenting a naked-eye 3D display effect in a 360-degree full-angle range, strong in visual impact and sensual experience, and excellent in wear resistance.

The invention provides an electronic equipment housing, a preparation method thereof, and electronic equipment. The electronic equipment housing includes a housing body. The housing body includes a bottom wall and at least one side wall connected with the bottom wall. At least one of the inner surface of the bottom wall and the inner surface of the side wall has a millimeter-sized first stereoscopic texture; the outer surface of the bottom wall is a plane or a cambered surface; the outer surface of the side wall is a cambered surface; and at least one of the outer surface of the bottom wall and the outer surface of the side wall has a millimeter-sized second stereoscopic texture. In the electronic equipment housing, by setting the millimeter-sized stereoscopic texture on the inner surface,a user can directly see a strong stereoscopic effect by naked eyes; and since the outer surface of the housing has the millimeter-sized second stereoscopic texture, the user can feel the stereoscopictexture effect when viewing by naked eyes and holding with hands. The housing can simultaneously give the user a strong stereoscopic effect from the visual and tactile aspects, thus meeting the requirements of fashion and individuation and providing users with a good use experience.

The invention provides a production method of an IML face shell with a magnetic printing ink stereo pattern effect. The production method comprises the following steps: carrying out dust removal, heating and preshrinking processing to a transparent film; printing a color tracking and positioning color batch on the back surface of the transparent film through a screen printing machine; printing the magnetic printing ink on the back surface of the transparent film through the screen printing machine; carrying out pattern magnetized setting on the magnetic printing ink to form a magnetic printing ink stereo pattern layer; performing curing and drying; performing screen printing on an IML printing ink layer on the back surface of the magnetic printing ink stereo pattern layer; forming through injection molding. Therefore, the production method breaks through a traditional production process form of the IML face shell, the IML face shell is viewed from the transparent film layer, and the magnetic printing ink stereo pattern layer can show luster with light and shade contrast and the stereo effects of multiple layers and uniform transition, can bring strong visual impact to people, and only a magnetic printing ink printing line is increased on the conventional IML printing production line. Compared with the prior art, the production method is simple and efficient and high in practicability, and the produced IML face shell has a strong stereo effect.

The invention belongs to the technical field of wood veneer / batten manufacturing, and particularly relates to a dyeing technology for a wood veneer / batten. The dyeing technology solves the problem that the existing technology is not reasonable in design and the like. The dyeing technology for the wood veneer / batten comprises the following steps that A, separation is conducted; B, kiering is conducted; C, dyeing is conducted; D, water is removed; F, drying is conducted; and F, post-treatment is conducted. The dyeing technology has the beneficial effects that firstly, removing resin oil, a mineral line, spots, cracks and the like is the purpose of kiering, the color required by a customer is achieved, the color of the wood veneer is whiter and whiter, and the hand feeling is more comfortable and softer; secondly, the technology is simple and easy to control; thirdly, the quality and structural stability of products are improved, and practicability is higher; and fourthly, the dyeing quality is improved.

The invention discloses a multifunctional solar advertizing and planting lamp box, which comprises a seat, an advertizing box and an air condenser, wherein the seat is provided with a support; the top of the support is provided with a rain baffle; the upper surface of the rain baffle is provided with a solar panel connected with a storage battery; the storage battery is provided with a control circuit board; the air condenser is connected with the storage battery; the advertizing box is arranged beside the seat; a planting box is arranged on the advertizing box, is connected with the air condenser through a guide pipe and is provided with an overflow port; a light source is arranged in the advertizing box and is connected with the storage battery. The multifunctional solar advertizing and planting lamp box is novel, unique, environment-friendly and energy-saving, has multiple functions such as environmental greening, urban streetscape decorating, solar power supply, automatic irrigation by making water through air condensation and advertising, is multipurpose and appears for the first time in the industry; the multifunctional solar advertizing and planting lamp box can attract private capital investment and reduce public expense of the government.

The invention provides a visual monitoring method and system for the heat supply network data of a heating station heat supply area. The method comprises the following steps that: collecting the monitoring data of the fixing monitoring point of a heat-supply pipe network in each heating station heat supply area in an appointed area; taking each piece of collected monitoring data as the heat supplynetwork data of the corresponding heating station heat supply area; according to a preset first mapping relationship, obtaining an identification color corresponding to the heat supply network data of each heating station heat supply area, wherein the first mapping relationship comprises a corresponding relationship between the numerical value range of the heat supply network data and the identification color; and according to the obtained identification color, independently identifying the corresponding boundary graph of each heating station heat supply area in a heat supply heat supply network graph. By use of the method, management personnel can conveniently and visually know the working condition of the heat supply network and carry out regulation and control according to the workingcondition of the heat supply network, energy waste is reduced so as to be favorable for energy saving and emission reduction, in addition, the comprehensive monitoring of a thermodynamic system is realized, and therefore, heat supply service quality is favorably provided.

The invention relates to a method for converting a 2D video into a 3D video, belongs to the field of mode identification and computer vision, and aims to eliminate an unpredictable error brought in by scene depth estimation and viewpoint synthesis in the prior art and meanwhile greatly improve a calculation speed. The method disclosed by the invention comprises a training stage and a using stage; the training stage sequentially comprises the steps of data input, feature extraction, feature fusion, viewpoint synthesis and parameter updating; and the using stage sequentially comprises the steps of data input, feature extraction, feature fusion and viewpoint synthesis. In the training stage, a 10<6>-level side-by-side 3D stereoscopic video movie film is trained, scene depth estimation and viewpoint synthesis are simultaneously subjected to optimization solution and parameters are determined, so that pixel-level accuracy prediction of an output right-sided view is ensured, and an error brought in by dividing conversion from the 2D video to the 3D video into two task operations; and after training is completed, conversion from the 2D video to the 3D video can be directly carried out, so that conversion efficiency can be greatly improved, and accuracy of a finally output 3D stereoscopic video is ensured.

The invention discloses a bus opening and closing dual-purpose bus roof structure, a double-layer traveling sightseeing bus and a bus roof opening and closing deformation method. A bus roof comprises a movable bus roof and a fixed bus roof, wherein the movable bus roof is positioned at the front half part; the fixed bus roof is positioned at the back half part; a support frame mechanism and a pushing mechanism are arranged at the upper part of a vehicle body side wall corresponding to the movable bus roof; a movable slide rail is supported on the support frame mechanism; the movable bus roof is arranged on the movable slide rail; the top of the fixed bus roof is provided with a fixed slide rail parallel to the bus body; one of two final work positions of the support frame mechanism is used for raising up the movable slide rail and enabling the slide rail to be in butt joint with the fixed slide rail fixed on the bus roof; the other final work position is used for enabling the movable slide rail to fall down until the movable bus roof is aligned with the fixed bus roof; the pushing mechanism is used for pushing the movable bus roof to backwards move onto the fixed bus roof after the movable slide rail and the fixed slide rail are in butt joint. The problem that the existing sightseeing bus cannot simultaneously meet the dual requirements of sightseeing and comfort of tourists is solved.

The invention relates to a virtual practical teaching system. The system comprises a teaching module, an operation training module, an examination and evaluation module and a virtual reality module, wherein the teaching module is used for storing teaching content; the teaching content comprises 3D model scene of landscape and horticulture practical training; the operation training module is used for performing corresponding actions according to the teaching content and executing simulation operation according to a landscape and horticulture practical training process; the examination and evaluation module is used for performing examination and evaluation according to a simulating operation result of the operation training module; the virtual reality module is used for demonstrating the teaching content in a 3D dynamic visual scene form. The virtual reality module is used for demonstrating the teaching content in the 3D dynamic visual scene form, so that a real scene is restored, visual impact and influence are high, the effect of being personally on the scene is realized, and landscape architecture and various flowers and trees can be observed and known comprehensively from all viewing angles.

The invention relaters to a naked-eye 3D display module for games and a preparation method of the naked-eye 3D display module. The naked-eye 3D display module for games comprises a piece of grating glass and a liquid crystal layer; the liquid crystal layer is a piece of liquid crystal glass, the grating glass comprises a naked-eye 3D imaging material and a piece of optical super white glass which are attached by an optical adhesive layer; oriental attaching to locating points on the grating glass and the liquid crystal glass is performed by a high-definition camera. According to the naked-eye 3D display module for games and the preparation method of the naked-eye 3D display module, oriental attaching to locating points on the grating glass and the liquid crystal glass is performed by the high-definition camera, the alignment accuracy and the consistency are increased, and the production efficiency is improved to a great extent; the liquid crystal glass but not a liquid crystal display is adopted, so that full contact of the grating glass and the liquid crystal glass can be realized, the grating glass is directly attached to the liquid crystal glass by an attaching technology, and the flatness of the display module is improved greatly.

The invention discloses a melamine veneer and a preparation method thereof, and belongs to the technical field of decorating materials. The melamine veneer is composed of a substrate and melamine impregnated paper. The melamine impregnated paper is obtained by impregnating paper in a melamine resign adhesive and processing the impregnated paper. The melamine resin adhesive has better activity as the formula thereof is determined by repeated tests. The melamine veneer has a simple processing technology, which causes the melamine resin adhesive to be more evenly and thoroughly immersed into decorating paper. The veneer formed by pressing has a plurality of advantages of the traditional melamine veneer such as high hardness, good abrasion resistance and good heat resistance, good chemical resistance, smooth and clean surface, easy maintenance and cleaning and the like, and further has the advantage of high luminance.

The invention relates to a composite film with a local pearl effect and a preparation method thereof. The composite film is formed by compounding a heat-sealing layer and a printed layer, wherein the printed layer adopts a bidirectional stretching polyester film; the heat-sealing layer adopts a polyethylene film; and pearlized patterns are printed on the printed layer. The composite film is prepared by the steps of plate-making process, printing ink preparation, intaglio printing process, dry-type composite process and cutting process. The preparation of the composite film has the advantages of easy operation, low production and using cost, wide application range and capacity of preparing composite films of a plurality of material structures. The composite film has the advantages of prominent local pearl effect, strong visual impact and suitability for packaging different products such as the common snack food, milk powder, frozen food, cooked food and the like.

The invention discloses a display system and method for a virtual keyboard. The display method comprises the following steps of: S1, receiving a command of a user, and calling an output function F (P1) from a function library; S2, after receiving an operation that the user touches one key of the virtual keyboard, acquiring coordinates P1 of the key; S3, substituting the P1 to the output function F (P1) and calculating to obtain an output result, wherein the output result represents a display layer of the virtual keyboard; and S4, drawing the output result onto a display interface of the virtual keyboard. By adopting the display system and method disclosed by the invention, display of ripple shape and colour of the key can be obtained, so that the touched key is displayed more clearly in the display interface; and the displayed colour is more diverse, and thus user experience is enhanced.

The invention discloses an NCVM (Non Conductive Vacuum Metallization) spraying surface treatment process and an NCVM product. The process comprises the following steps: (1), undercoat spraying: an undercoat is sprayed on a substrate to form an undercoat layer; (2), electroplating: the surface of the undercoat layer is subjected to electroplating treatment to form an electroplating film layer; (3), laser etching oil paint spraying: laser etching oil paint which is convenient for laser etching process is sprayed on the electroplating film to form a laser etching oil paint layer; (4), 3D (Three Dimensional) laser etching: the laser etching oil paint layer is divided into a laser etching area and a non laser etching area, and a laser etching machine is used to perform laser etching process on the laser etching area to form a laser etching layer; (5) finishing coat spraying; (6) 3D laser processing; and (7) curing. By sequentially performing undercoat spraying, electroplating, laser etching oil paint spraying, 3D laser etching, finishing coat spraying, 3D laser processing and curing on the substrate, a shiny surface and matte surface combined object with a handfeel is formed; a shiny surface and a matte surface are combined, so that the appearance of a cell phone is attractive, and a strong visual impact is formed by the shiny surface and the matte surface; and for the use handfeel of the product, the fine and smooth feeling of the shiny surface and the matte surface of the product can be felt.

The invention provides a three-dimensional visualization method and device for OD relations in a GIS. The method is used for generating a corresponding three-dimensional curve capable of being recognized by a GIS system according to input data of a user and carrying out three-dimensional visual display, and comprises the following steps: S1, obtaining OD relation statistical data used for reflecting the relation between two positions and places; S2, acquiring curve construction information input by a user; S3, generating a curve type; S4, calculating curve heights of the plurality of curves; S5, sampling each curve in sequence so as to calculate sampling point coordinates of a plurality of sampling points corresponding to each curve; S6, converting the data into a corresponding statisticalfile containing all the curves in the GIS according to the curves, the corresponding sampling point coordinates and the OD relation statistical data; and S7, visually displaying the statistical filethrough a three-dimensional visual application.

The invention discloses a double-layer sightseeing bus. The bus top of a double-layer sightseeing bus body comprises a movable bus top positioned at the front half part and a fixing bus top positioned at the rear half part; each side wall of the bus body, corresponding to the movable bus top, of an upper layer bus body, is formed up-down butt joint of an upper side wall and a lower side wall; each of lower wall push-and-pull mechanisms and a corresponding upper wall lifting mechanism are arranged in the bus body corresponding to the movable bus top; each of the lower wall push-and-pull mechanisms is used for pulling the corresponding lower side wall to retract to the bus; each of the upper wall lifting mechanisms is used for driving the corresponding upper side wall to fall to the initial position of the corresponding lower side wall; a frame supporting mechanism and a propelling mechanism are arranged at the upper part of each of the upper side walls; a movable sliding rail is supported on each of the frame supporting mechanisms, and the movable bus top is arranged on the movable sliding rails; fixing sliding rails which are parallel to the bus body are arranged at the top of the fixing bus top; and the propelling mechanism is used for propelling the movable bus top to move backwards to the fixing bus top after the movable sliding rails and the fixing sliding rails are in butt joint.