87results about How to "Does not affect the visual effect" patented technology

The invention discloses a screen inner rupture-proof film, and a preparation method thereof. The screen inner rupture-proof film is adhered to the inner surface of a screen glass cover plate so as to realize protection of the screen. The screen inner rupture-proof film comprises a base material; one surface of the base material is coated with a UV varnish adhesive layer, and the other surface of the base material is coated with an acrylic adhesive layer; the other surface of the acrylic adhesive layer is coated with a release film; the thickness of the base material ranges from 20 to 100<mu>m, and the base material is prepared from one ingredient selected from PET, OPP, and PE; the release film is a PET release film with a thickness ranging from 50 to 150<mu>m; and the release force ranges from 3 to 20gf. According to the preparation method, one surface of the screen inner rupture-proof film is provided with the UV vanish adhesive layer, so that the screen inner rupture-proof film possesses impressionability, the screen inner rupture-proof film is printed with the shape and the appearance of the screen, and then the screen inner rupture-proof film adhered to the inner surface of the screen glass cover plate. The visual effect of the screen is seldom influenced because that the light-admitting quality of the screen inner rupture-proof film is high, and the screen inner rupture-proof film is printed with the shape and the appearance of the screen, and at the same time protection effect on the screen and electronic components in the screen is realized.

The invention provides a system for realizing real-time multi-angle three-dimensional sight, which comprises an ultrasonic ranging array, a position information processing device, a computer and shutter glass, wherein the ultrasonic ranging array is connected with the position information processing device to transmit information about motion distances of ultrasonic waves; the position information processing device is connected with the computer to transmit the position information of left and right eyes; the computer is connected with the shutter glass to transmit synchronization control information; and the ultrasonic ranging array is connected with the computer and the shutter glass respectively to transmit the ultrasonic information. Images of the left and right eyes can be obtained by calculating the real-time position information of the left and right eyes and are alternatively displayed by a display, the shutter glass is controlled to synchronously shield the liquid crystal glass of the left and right eyes and finally the real-time multi-angle three-dimensional sight is provided for a shutter glass user, namely, when the position and a visual angle of the shutter glass user are changed, the visual effect of a three-dimensional image is not influenced.

The invention provides a method for adjusting backlight of a liquid crystal display screen. The backlight brightness is divided into multiple brightness grades from darkness to brightness, wherein all-on indicates the highest grade marked as the N-th brightness grade, and N is a positive integer greater than 1. The method comprises the following steps: A, obtaining the duty cycle of the current backlight brightness grade M of the liquid crystal display screen, and marking as the M-th grade duty cycle; B, obtaining the duty cycle of the next brightness grade (M-1) adjacent to the current brightness grade, and marking as the (M-1)th grade duty cycle; and C, dividing the interval between the (M-1)th grade duty cycle and the Mth grade duty cycle into multiple sections; reducing the backlight duty cycle of the liquid crystal display screen from the Mth grade duty cycle to the (M-1)th grade duty cycle in turn according to the division; and increasing the backlight duty cycle of the liquid crystal display screen from the (M-1)th grade duty cycle to the Mth grade duty cycle, wherein M is a positive integer and more than or equal to 1 and less than or equal to N. Through the invention, the power consumption of the terminal equipment is effectively reduced, and the terminal equipment using time is prolonged in the condition of limited power supply of batteries.

The invention discloses a method for eliminating the visual blindness of motor vehicle driver. The method includes that a flexible transparent display screen is installed on the component which blocks the line of sight of the driver in the cockpit of motor vehicle; the image of the visual blindness which is blocked in the line of sight of driver is displayed in the flexible transparent display screen which is connected with an image processing controller and a camera; the information of the image of the visual blindness is obtained through one or multiple cameras arranged on the motor vehicle; the image information is addressed through the image processing controller to be connected with the view of the driver, so as to be sent to the flexible transparent display screen to display. In addition, the invention also discloses an equipment for eliminating the visual blindness of motor vehicle driver. The flexible transparent display screen has the advantages of simple structure, being convenient to install, small calorific power, do not needing to design and install the structure and the cooling system, do not affecting the previous visual effect of the vehicle, the space in the vehicle and the environment in the vehicle, being capable of displaying the whole CAN(Controller Area Network) information, being convenient for the driver to acquire the driving information and assisting the driver to make driving judgement.

The invention discloses a two-dimensional code identification method which comprises the steps that arraying directions of identification head code points, distances among the identification head code points, mass center positions of the identification head code points, a position of a dominant straight line, and the number of code elements in a content data component in a code word block are confirmed; a virtual state box of the whole code word block is obtained according to the arraying directions of the identification head code points, the distances among the identification head code points, the mass center positions of the identification head code points, the position of the dominant straight line, and the number of the code elements in the content data component in the code word block; a coded value indicated by each code element of the content data component is obtained according to the virtual state box of the whole code word block, and combined according to a set sequence; and coded information of the whole code word block is obtained. Correspondingly, the invention further discloses a two-dimensional code identification device, a two-dimensional code reading method and a two-dimensional code micro platemaking method. According to an approximate position of a locating code word block of the dominant straight line, an identification algorithm is simple, and an identification rate is high.

The invention discloses a protection film with the glittering and antistatic effects and a preparation method thereof. The protection film brings a stronger aesthetic feeling. The protection film comprises a protection film layer, a use layer and a release layer from top to bottom. The use layer comprises a UV hardened layer, an antistatic layer, a B base material and a B adhesive layer. The UV hardened layer is made of UV type acrylic resin glue, and the thickness of the UV hardened layer is 2-10 micrometers. The thickness of the antistatic layer is 1-10 micrometers. The B base material is one of a PET film, a PEN film, a PE film and a BOPET film, and the thickness of the B base material is 20-200 micrometers. The main component of the B adhesive layer is an organosilicone pressure-sensitive adhesive layer, and the thickness of the B adhesive layer is 20-100 micrometers. The surface resistance of the protection film can reach 108-1010 ohm.m, and thus the good antistatic effect is achieved; the UV hardened layer can achieve the wear-resisting and scratch-preventing effects and also can prevent loss of an antistatic agent, and thus the service life of the antistatic agent is prolonged.

The invention provides a method and a device for remote control, which belongs to the technical field of image communication. The method comprises the following steps that: the one-to-one corresponding relation between concrete operation options in each species of operation options of imaging equipment and key values of a remote controller is set respectively; the key values sent by the remote controller are received; a corresponding operation option classification is acquired according to the current state of the imaging equipment; and according to the one-to-one corresponding relation between the concrete operation options and the key values of the remote controller, the concrete operation options corresponding to the received key values are acquired from a first operation option classification, and corresponding operation is performed on the imaging equipment. By setting one key value to correspond to a plurality of states and through remote control operation performed by users according to the states displayed on a screen, the quantity of keys on the remote controller is effectively reduced. In addition, as the surfaces of the keys do not need to be provided with corresponding picture-text marks, the problem that the users cannot correctly use the remote controller because of the fuzziness of the picture-text marks is avoided.

A related aqueous high-molecular waterproof coating is characterized by comprising the following compositions in parts by weight: 20-50 parts of an emulsion, 0.08-1.8 parts of a thickening agent, 0.08-0.25 parts of auxiliary agent AMP95, 0.45-2.3 parts of a dispersing agent, 0.04-0.23 parts of a wetting agent, 0.08-0.55 parts of an anti-foaming agent, 35-65 parts of a powder material, 0.8-2.5 parts of a film-forming auxiliary agent, 0.8-2.2 parts of a cosolvent, 0.045-0.23 parts of an antiseptic, 0.1-0.3 parts of a softening agent, 0.2-0.7 parts of an ageing-resistant agent, and 3-12 parts of water. The aqueous high-molecular waterproof coating is safe, free of toxic and side effects, free of pollution to environment, high in caking strength, short in drying time, convenient to use, free of influence to visual effect, resistant to corrosion, waterproof, resistant to acids and alkalis, and the like. Also, the coating is simple in preparation technology and high in cost performance, and widely applicable to metal surfaces.

The invention discloses an image display method and system through superposition. The method comprises following steps of obtaining video frames of a main playing video output in a full screen; obtaining an area from area space when the video frames is output in the full screen according to a small window size when auxiliary images are output, wherein the dynamic change of the contents of the video frames in the area is the minimum; taking the area as a target area; displaying the auxiliary images in the target area through superposition; and displaying the auxiliary images through superposition in the area in which the dynamic change of the contents of the video frames output in the full screen is the minimum. According to the image display method and system through superposition provided by the invention, the visual effect of the main playing video is not influenced, moreover the auxiliary images are displayed, and the user experience is improved.

The invention relates to a method and device for tampering authentication of paper documents. The method comprises the steps of: extracting key sensitive data information from an electronic document and storing; carrying out anti-counterfeiting processing on a seal image in the electronic document; printing and outputting the electronic document and embedding watermark information in the printed and output paper document at the same time; when authenticating the paper document, digitally processing the paper document to obtain digital image content data and carrying out the tampering authentication by utilizing the key sensitive data information and the watermark information; and judging whether the paper document is an original document or not by authenticating the seal image of the paperdocument, wherein the tampering authentication comprises preliminary tampering authentication and deep tampering authentication. Through the method disclosed by the invention, the technical problemsthat the accuracy the low, the speed is low, the tampering position cannot be accurately located, the authentication of the paper documents cannot be accurately carried out and the like in the currentpaper document tampering authentication field are solved.

The invention discloses an automobile backsight device and a display thereof, which is used for realizing high-brightness displaying effect. As to the physical hierarchical structure, the display sequentially comprises a first polarizing plate, a glass liquid crystal unit, a second polarizing plate, a brightness enhancement film, at least a diffusion film, a backlight plate and a heat dissipation plate which are constrained on a framework. The hierarchy distribution of the display leads the brightness to be ranging from 3000cd / m<2> to 8000cd / m<2>; therefore, when being combined with an anti-glare mirror with luminousness being 12-20%, the display can ensure the vision of a driver so that the driver can not only see information displayed on the display, but also see objects behind the automobile reflected by the anti-glare mirror.

The invention discloses a copyright protection method based on a block chain and picture steganography. A scheme of combining a block chain with picture steganography is utilized; confirmation disputes of the copyright of the picture work can be greatly reduced. A least significant bit of each pixel point component (rgba) of a picture is changed; wherein the picture effect cannot be identified bynaked eyes, so that extra information can be stored in the least significant bit of the pixel component, the information is hidden in the picture, the original effect of the picture is not changed, and once the decentralized distributed account book and the chained account book information of the blockchain technology are chained, the information cannot be tampered; based on an account system of an encryption algorithm, the security of private data can be effectively ensured; the programmed contract guarantees the automation and consistency of contract execution, reduces the cost of copyrightconfirmation, solves problems that a copyright owner cannot be found through authorization and authorization registration and charging are complex, reduces the cost of right protection, and reduces the number of processes.

The invention discloses a method of rapidly rolling back a list. The method of rapidly rolling back the list comprises the following steps: judging whether a sliding operation enters an area corresponding to a list interface; judging the sliding direction of the sliding operation is upward or downward; and rolling back to the top row or the terminal row according to the sliding direction. Compared with the prior art, the method of rapidly rolling back the list judges whether the sliding operation enters the area corresponding to the list interface at first, if the judged result is yes, the sliding direction of the sliding operation is judged to be upward or downward, when the sliding direction is upward, the top row of the list interface is rolled back to, when the sliding direction is downward, the terminal row is rolled back to, and therefore rapid rolling-back of the list is achieved. Besides, tools like a sliding block are not needed to occupy the list interface, and therefore the visual effect of the entire list interface is not affected. The invention further discloses a terminal of rapidly rolling back the list.

The invention discloses a 3D pattern plastic shell processing technology, belonging to the shell processing technology. The processing technology comprises the steps of preheating, hot pressing, cutting, injection moulding and post-processing, wherein in the preheating step, a 3D pattern sheet is preheated by a hot press to realize a softening effect; in the hot pressing step, the softened 3D pattern sheet is subjected to hot forming by a hot press and to positioning shaping by a setting die to obtain a 3D pattern shell; in the cutting step, the scraps of the 3D pattern shell are cut and removed; in the injection moulding step, the 3D pattern shell is placed in an injection moulding die, and injection moulding is performed in the 3D pattern shell by an injection moulding machine to obtain a 3D pattern plastic shell; and in the post-processing step, the scraps of the 3D pattern plastic shell are cut. The 3D pattern plastic shell processing technology can finish 3D imaging on the whole surface of the plastic shell once.

The invention relates to a keycap with an invisible character effect, and a production method and the production method application thereof. The keycap comprises a shading shell and a light transmission inner shell, the light transmission inner shell comprises an inner shell external surface, an inner shell internal surface and an inner shell thickness, the inner shell external surface is provided with at least a light transmission symbol portion with a micro protrusion and a flat portion, the light transmission symbol portion with the micro protrusion comprises an outer protruding light transmission surface and an inner concave light transmission surface and is used for generating a stereo perception and a wide light refraction range, the shading shell comprises a shell external surface, a shell inner surface and a shell thickness, and the shell inner surface is recessed towards the shell external surface so that the shell thickness is reduced and an intaglio symbol portion is formed. According to the keycap, the shading shell performs intaglio of a character pattern, when light emits in the keycap, the character pattern is displayed by the shading shell, the character on the keycap can be see whatever the light condition is, mimeograph is avoided, environmental protection and durability are achieved, and more importantly, the damage to eyes is avoided.

The invention provides an intelligent constant display method and mobile equipment. The adaptive use of different algorithm programs is carried out through the adaption of a single-clock mode and a multi-clock mode of an AOD function of the mobile equipment, and specifically, a display region and an algorithm program are determined for the single-clock mode set by a user through a 2bit algorithm program, so that the display area is small, in order to adapt to the small display area, the time, place, date and other information in the single clock window also show a small display effect, the edge burr phenomenon does not exist, and the display effect is improved; a display area and an algorithm program are determined by using a 1bit algorithm program for the multi-clock mode (such as double clocks) set by a user, so that the display area is enlarged, the method can adapt to the display of multiple clocks, and the time, place, date and other information of each clock can be ensured to be presented in the corresponding display area.

The invention relates to a water-based high-molecular damping coating. The coating is characterized by comprising the components in parts by weight: 20 to 50 parts of emulsion, 0.08 to 1.8 parts of a thickening agent, 0.08 to 0.25 parts of an additive AMP95, 0.45 to 2.3 parts of a dispersing agent, 0.04 to 0.23 parts of a wetting agent, 0.08 to 0.55 parts of a defoaming agent, 35 to 65 parts of powder, 0.8 to 2.5 parts of a coalescing agent, 0.8 to 2.2 parts of a cosolvent, 0.045 to 0.23 parts of an anticorrosive agent, and 3 to 12 parts of water. The coating has the characteristics of high safety, no toxic or side effects, no pollution on environment, high bonding strength, short drying time, high convenience for use, no influence on visual effect, corrosion prevention, acid-base resistance, and the like; besides, the preparation technology for the coating is simple, high in performance-price ratio, and widely applied to metal surfaces; the wide application of the coating can reduce the construction energy consumption in China prominently, and alleviate the burden brought by the development of the construction industry to the environment.

The invention provides a special effect processing method, a special effect processing device, electronic equipment and a computer readable storage medium, and belongs to the technical field of games.The method comprises the steps of obtaining a special effect to be processed, wherein the special effect to be processed comprises one or more special effect elements; extracting features of the special effect elements; determining one or more similar special effect element sets from the special effect elements based on the feature similarity of the special effect elements; and performing simplification processing on the special effect elements in the similar special effect element set, and generating a target special effect according to the processed special effect elements. The data size ofthe special effect can be reduced while the special effect visual effect is guaranteed, the pressure caused by special effect operation to hardware is reduced, and the application range of the special effect is widened.

The present invention discloses an OLED display controller, which comprises an OLED display screen, a row driver and a column driver connected to the OLED display screen, and a row and column controller connected to the row driver and column driver; the row and column controller comprises an enabling control unit, which is connected to the row driver and column driver to transmit ON and OFF signals to the row driver and column driver at a predefined time interval to switch on and off the OLED display screen. The present invention further discloses an OLED display control method. The controller and the method provided in the present invention can prolong the service life of the OLED display screen, without adverse effect to the visual effect for human eyes.

The invention provides a computer data embedding and displaying method as well as a computer data embedding and displaying device. The computer data embedding and displaying device comprises a recording part 701, an associating part 702, a mapping part 703, a displaying part 704 and an updating part 705; the recording part 701 records identity information; the associating part 702 obtains the identity information provided by the recording part 701 and associates the identity information with time information; the mapping part 703 obtains the associated identity information and time information provided by the associating part 702 and performing character string mapping; the displaying part 704 receives information after being mapped by the mapping part 703 and displays the mapped information; and the updating part 705 is used for updating the time information and providing the time information to the associating part 702. In the technology provided by the invention, through regional encryption, storage cost and time cost required by decryption are saved, reliability of reverse tracing is also added, and a visual effect of normal chatting is not affected.

In current technique, obvious symbol as scaleplate is setup in file in order to raise image recognition of file scanned. But, if copier covers the scaleplate, the scaleplate is out of action. In addition, random noise is added to original file caused by printing, scanning and copying processes, and attached scaleplate is also affected. Thus, recognizing and testing scaleplate is becoming difficult. The disclosed method implants shading composed of dots at bottom of content of file. Specific net dotsimplanted in shading is as scaleplate. Recognizing net dots as scaleplate calculates angle of rotation and scaling of scanned image. Features are: high security and interference killing feature since invisible information of scaleplate.

The invention relates to a dual-degradation heatproof food package film. The dual-degradation heatproof food package film is in a layered structure and sequentially comprises the following layers from outer to inner: a transparent heatproof protective layer (1), a printed layer (2), a printed base material layer (3), a visible light degradation baffling layer (4), and a biodegradable heat sealed layer (5). The transparent heatproof protective layer (1) comprises fumed silica. The transparent heatproof protective layer (1) and the printed base material layer (3) comprise a photosensitizer. The visible light degradation baffling layer (4) is prepared through copolymerization between monomers with photosensitive groups and olefin monomers. The biodegradable heat sealed layer (5) is prepared from aliphatic polyester with an ester group structure. The neighbored layers of the dual-degradation heatproof food package film are adhered together through hot pressing. The added fumed silica can enable the package film to have a good heatproof property. Moreover, the discarded package film can be degraded by light and organisms, the package film is green and environment-friendly, and the application range is wide.

The invention discloses one-piece electromagnetic shielding protective clothing, which comprises an upper outer garment, trousers, a hat, a face mask, shielding gloves and shielding boots, wherein the upper outer garment, the trousers and the hat are connected in a top stitching way to form an integrated structure; a zip fastener is arranged on a middle piece on the rear parts of the upper outer garment and the hat; a closed door is arranged at an opening of the zip fastener; the face mask is adhered to the hat; a transparent material is arranged at the eyes of the face mask; the shielding gloves are connected with sleeves of the upper outer garment in an overturning way; and the shielding boots are connected with trouser legs of the trousers in the overturning way. By the one-piece electromagnetic shielding protective clothing, a totally-enclosed shielding protection function in a wearer can be realized, electromagnetic radiation can be shielded or attenuated, and the damage of the electromagnetic radiation to a human body can be reduced. The one-piece electromagnetic shielding protective clothing is applied to workers of an electromagnetic radiation pollution source area.

The invention discloses an adjustable unit type LED oil price display board with a wireless remote control function. The adjustable unit type LED oil price display board comprises a box body, an adjustable LED oil price display device and a remote control emitter, wherein the adjustable LED oil price display device is positioned on the box body, and the remote control emitter performs switching on, switching off and brilliance control for the adjustable LED oil price display device through a wireless remote control mode. According to the embodiment of the invention, LED is used as a light source, the service life is long, the penetrating power is strong, the visual effect of the LED lamp cannot be influenced even in severe weather, and people's attention can be attracted; and besides, a user can performs brilliance control on the LED oil price display device through the remote control emitter according to illuminance of the environment, not only is the operation convenient and efficient, but also unnecessary electric energy waste can be avoided, the energy is saved, and the environment protection is achieved.

The invention discloses a steel plate coating technology for ink-jetting a pattern by adopting an inkjet machine to solve the technical problem of high production cost of steel plate coating technologies in the prior art. The steel plate coating technology is characterized in that a steel plate is sequentially coated with a PVC protection layer, an aqueous color coating layer, a gloss oil layer and a protection film. The steel plate coating technology comprises the following steps: 1, the steel plate is coated with a PVC paste after undergoing a surface treatment process, and the PVC paste isplasticized at a high temperature to form the PVC protection layer; 2, aqueous ink is ink-jetted on the PVC protection layer through the inkjet machine to ink-jet the pattern, and the aqueous ink is dried with ultrasonic rays to form the aqueous color coating layer; 3, the aqueous color coating layer is coated with gloss oil, and the gloss oil is dried with ultraviolet rays to form the gloss oil layer; and 4, the protection film is attached to the gloss oil layer.

The invention relates to an anti-UV protective film of an OLED screen body for a vehicle light. The anti-UV protective film comprises release paper, an adhesive layer, a resin film and a UV barrier layer which are arranged in sequence from bottom to top, and has the total thickness of 40 to 100 [mu]m; the resin film contains an ultraviolet absorbent; the visible light transmittance of a composition comprising the adhesive layer, the resin film and the UV barrier layer is 75 to 90 percent; the adhesive layer is used for connecting the OLED screen body with the resin film, and has the characteristics of low volatilization and low fogging degree; the resin film is made of PET or PEI resin, thus guaranteeing the high-temperature resistance and the tear strength of a protective film main body;the ultraviolet absorbent is UV-P or UV-531. With the barrier rate of 95 to 100 percent, the anti-UV protective film can prevent ultraviolet radiation at the wavelength of 5 to 430 nm; the anti-UV protective film is high in adhesiveness, can resist high temperature, is easy to construct, and provides a good anti-UV radiation effect for the OLED screen body for the vehicle light.

The invention provides a bone-fracture minimally-invasive fixation strengthening apparatus comprising a guiding unit, a strengthening belt and a strengthening gun. The rear end of the guiding unit is arranged to be a groove or a ring so as to carry the strengthening belt to penetrate bone and other tissues, and the strengthening belt penetrating the bone and the tissues is firmly fixed to the surface of the bone tissue surface or the steel plate surface to repair fracture sites through the strengthening gun. The bone-fracture minimally-invasive fixation strengthening apparatus has the advantages that low damage is caused to the tissues by adopting the minimally-invasive fixation strengthening apparatus, in particular, fixation of positions of weak bone tissues is not suitable for being fixed through nail-board combinations and the like, and the apparatus can serve as an auxiliary fixation unit used for the surgical procedure; the bone-fracture minimally-invasive fixation strengthening apparatus is simple in operation and stable in fixation, and risk of refracture after fixation is greatly reduced; meanwhile, use amount of medical instruments and apparatus of high-value material nail boards and the like is reduced, patient's financial burden and burden of social health insurance are alleviated, and the bone-fracture minimally-invasive fixation strengthening apparatus is worthy of clinical promotion and use.

The embodiment of the invention discloses an image processing method and device, electronic equipment and a storage medium. The method comprises the steps of acquiring a current frame image; detectinga moving object in the current frame image to obtain a region of interest and a background region, the region of interest including the moving object; compressing the image data of the region of interest to obtain compressed first image data; and outputting the compressed first image data and background image data corresponding to the background area to a display device, so that the display equipment displays a current frame image.

The invention discloses a method for reducing power consumption of a mobile terminal, the mobile terminal and a device with a storage function. The method comprises the steps of obtaining a preset resolution list when an application of the mobile terminal is started; matching the application with the resolution list; if matching is successful, obtaining a first resolution corresponding to the application from the preset resolution list, and rendering the application according to the first resolution. In the way, the power consumption of the application in the running process can be reduced, and therefore the power consumption of the mobile terminal can be reduced.

The invention relates to a five-point type safety restraint device for a motor vehicle passenger and a use method of the five-point type safety restraint device. A headrest is positioned on a car seat back, an LATCH hook is connected to an LATCH interface behind a car seat in a hung mode; a cushion is fixed to the car seat; the passenger sits on the cushion and catches a safety belt spring bolt of a limit force precautionary retractor I by hand to insert the safety belt spring bolt into a lock catch I on one side of the cushion, a five-point type clamping head I is inserted into a five-point bayonet, the passenger catches the safety belt spring bolt of a limit force precautionary retractor II by hand to insert the safety belt spring bolt into a lock catch II on the other side of the cushion, a five-point type clamping head II is inserted into the five-point bayonet, and the overall five-point type safety restraint device for a car is formed; and when not in use, the five-point type clamping head I and the five-point type clamping head II are pulled out correspondingly, starting keys of the lock catch I and the lock catch II are pressed correspondingly, and limit force precautionary retractor I and the limit force precautionary retractor II automatically retract the seat belt spring bolt. When collision happened to the car, the passenger can be firmly fixed to the seat, the damage is avoided, and the safety of the passenger is improved.