64results about How to "Improve stitching effect" patented technology

The invention provides a vehicle-mounted navigation panoramic video stitching method and system, and belongs to the technical field of auxiliary driving, and the method comprises the following steps: obtaining vehicle periphery original images of a vehicle body in multiple directions in real time; performing image distortion correction on the plurality of original images around the vehicle to obtain a plurality of overlook view angle images for splicing; and dividing the plurality of overlook view angle images into overlapped areas and non-overlapped areas by adopting a partition gradual-in and gradual-out weighted fusion method, retaining image information of the non-overlapped areas, performing weighted distribution on gray weight information of the overlapped areas, and fusing the overlapped areas according to a distributed gray value to obtain a spliced panoramic image around the vehicle body. According to the method, the visual blind area existing during turning, overtaking and side parking can be solved, potential safety hazards are greatly eliminated, meanwhile, ghosting or distortion occurring in the overlapping area can be eliminated, the splicing effect of the panoramic spliced image is improved, and a driver can make correct judgment conveniently.

The invention provides a laser confocal ocular surface image stitching method based on deep learning. Efficient and accurate image stitching is realized through unsupervised learning. Firstly, an ocular surface image is preprocessed, and a data set is constructed; then, a multi-scale feature pyramid is constructed by using a convolutional neural network, image features are automatically extracted and pre-aligned, and image alignment is optimized through global motion aggregation and local motion correction technologies. Thirdly, constructing a content fusion generative adversarial network which comprises a generator and a discriminator to smooth the fused image and generate a spliced image conforming to human eye perception; a staged training strategy is adopted, image alignment is optimized firstly, and then image smooth fusion is achieved. And finally, automatically finishing image alignment and fusion by using the trained network to obtain a seamless large-view confocal ocular surface image. According to the method, the splicing precision and robustness are improved, the method is suitable for image splicing in different environments, and the splicing success probability is remarkably improved.

The invention belongs to off-line reinforcement learning, and particularly relates to an off-line reinforcement learning method combining generalized advantage estimation and modal decomposition interaction. In order to solve the problems of insufficient track splicing capability and intra-modal interaction and inter-modal interaction of multi-modal information in a track in an off-line reinforcement learning method based on TransFormer, the track splicing capability of a model in an off-line data set is improved by adopting generalized advantage estimation, a modal decomposition interaction module utilizes an encoder-decoder structure, and a mode decomposition interaction module utilizes an encoder-decoder structure, so that the track splicing capability of the model in the off-line data set is improved. And the encoder effectively processes time sequence information in a single mode by utilizing modal internal interaction based on ConvFormer. Relative to this, the correlation between the state and the action is captured based on the interaction between the modes of the TransFormer, so that the characterization capability of the model on the state and action sequence is enhanced. The decoder further fuses multi-modal information by using convolution and cross-attention mechanisms, thereby realizing more accurate motion prediction.

The invention discloses an automatic fusion method for a large-scale framing map, and the method comprises the following steps: S1, training an image segmentation model, so as to achieve the extraction and segmentation of a map region; s2, registering a graphic area calibrated by the image segmentation model, and restoring the graphic area into a map image of a standard sheet; and S3, determining the position sequence of different framing pictures in the full-width map, splicing a large number of framing pictures, and finally splicing to form the full-width map. According to the method, the automatic fusion of the framing maps in a large-scale scene is realized, the splicing process of the framing maps is remarkably simplified through automatic operation, a large amount of manual operation is reduced, manpower is saved, and the splicing efficiency is greatly improved.

The present invention relates to the field of intelligent image splicing, and proposes an intelligent splicing method and system for electronic images based on a decision network. The method comprises: extracting feature descriptors of images to be spliced ​​using a preset convolutional neural network, and calculating feature similarity values, performing image registration using the feature similarity values, performing region segmentation using a preset clustering algorithm, extracting key feature points and calculating texture difference items, generating a splicing candidate set based on the texture difference items, and performing error detection using an automatic detection mechanism, inputting error detection records into an image splicing processing system for correction, extracting correction factors to generate a corrected image set, removing the splicing edges of the corrected image set, performing color balancing, and optimizing the splicing of images using a particle swarm optimization algorithm, and finally obtaining an optimized spliced ​​image. The present invention can improve the splicing accuracy and splicing efficiency of electronic images.

The invention relates to the field of traffic monitoring, in particular to a multi-millimeter-wave radar vehicle track splicing method and system in a tunnel. The method comprises the following steps: carrying out space-time calibration on all millimeter wave radars in a tunnel; respectively acquiring a set of vehicle information of all vehicles at any same moment in the overlapping area of all adjacent millimeter wave radars; similarity of adjacent radar vehicle information; and inputting the similarity into a pre-trained BP network, and determining whether to splice the vehicle tracks or not according to a result. According to the method, the vehicle tracks between the millimeter wave radars are spliced by adopting a BP neural network method, and the problem that the splicing effect of the vehicle tracks in the tunnel is not ideal due to the fact that millimeter wave radar signals have a multipath effect in the tunnel, detection interference is large and monitoring data precision is insufficient is solved.

The utility model provides a dura mater suturing device under a nasal endoscope, which comprises a titanium clip, and matched sawteeth are respectively arranged on the inner walls of two sides of the titanium clip; the clamp holder comprises a fixed rod, a movable rod arranged at the upper end of the fixed rod in a sliding mode, a lower clamp head, a fixed handle, an upper clamp head rotationally connected with the front end of the fixed rod through a first rotating shaft and a movable handle rotationally connected with the fixed handle through a second rotating shaft, wherein the lower clamp head and the fixed handle are fixedly connected to the two ends of the fixed rod respectively. A first linkage assembly is arranged between the movable handle and the movable rod, and when the movable handle rotates relative to the fixed handle, the movable rod is driven to slide along the fixed rod; and a second linkage assembly is arranged between the upper tong head and the end part of the movable rod. The operation defect that multiple times of suturing and knotting are needed in a narrow and deep space is overcome, the skull base dura mater can be sutured rapidly and firmly, the endoscopic skull base dura mater suturing technology is greatly simplified, the operation time is shortened, the suturing effect is improved, and the incidence rate of the complication of leakage of cerebrospinal fluid after a transnasal endoscopic skull base operation can be effectively reduced.

The invention relates to a corrugated board line width-splicing paper supply device and a corrugated board line, and relates to the field of corrugated board production equipment.The corrugated board line width-splicing paper supply device comprises a paper supply frame, a paper receiving guide roller set, a paper position control mechanism and a paper supply roller set which are sequentially arranged, and the paper supply frame comprises a paper supply frame body, a support installation shaft, a first side paper clamping plate, a middle paper clamping plate and a second side paper clamping plate; the support installation shaft is fixed to the paper supply frame body, a first middle paper clamping head and a second middle paper clamping head are arranged at the opposite positions of the two sides of the middle paper clamping plate correspondingly, and the first middle paper clamping head and the second middle paper clamping head can independently rotate relative to the middle paper clamping plate. The paper position control mechanism can control the positions of the two pieces of narrow-width paper on the paper supply roller set in real time, so that the two pieces of narrow-width paper are seamlessly spliced into wide-width spliced paper, narrow-width paper rolls are effectively utilized on the basis of ensuring the quality, and the production cost of corrugated boards is reduced.

The invention discloses a robot motion control system and control method based on machine vision, relates to the technical field of machine vision, and provides effective data input for an error calculation and correction module by extracting a local feature point set Fp during operation of the system. And the error calculation and correction module calculates an image translation error Et and a rotation error Er based on the feature point set Fp, obtains a translation vector T and a rotation error R by correcting the image position, generates a complete panoramic image P, and provides reliable visual information support for subsequent target positioning and path planning. The motion control and target positioning module is combined with a panoramic image P and a positioning algorithm, so that the target positioning precision is improved, the path planning is optimized, the problems of image dislocation, positioning errors and path instability in a traditional method are solved, and the adaptive capacity and task execution efficiency of the robot in a dynamic environment are greatly improved.

The utility model discloses a minimally invasive fascia stitching instrument with positioning, thread grasping and anti-slipping functions, which relates to the technical field of stitching instruments and comprises a stitching instrument main body, a fixing sleeve and a stitching needle. Positioning units are symmetrically arranged on the arc face of the left end of the stitching instrument body, a connecting plate is fixedly connected to the right end of the stitching instrument body, and a stitching needle is arranged at the right end of the connecting plate. The positioning unit comprises a wing plate, a sliding groove is formed in the upper side of the wing plate, the inner side of the sliding groove penetrates into the stitching instrument body, a rotating shaft is rotatably connected to the inner side of the sliding groove, the wing plate is rotatably connected with the rotating shaft, a sliding block is slidably connected into the sliding groove, and a hinge sleeve is fixedly connected to the upper side of the sliding block. The other end of the hydraulic push rod is fixedly connected with the interior of the fixing sleeve, the input end of the hydraulic push rod is electrically connected with the output end of an external controller, and the positioning unit is arranged, so that the stitching instrument can be properly positioned and fixed in the using process, a suture line is not prone to falling off, the stitching effect is effectively improved, and potential safety hazards in the process are avoided.

The present invention discloses a fascia suturing device with a locking assembly, including a puncture device, a suture device and a thread hook device, the suture device is installed on the puncture device, the thread hook device is detachably connected to the puncture device, the thread hook device includes a shell, a thread hook needle assembly is movably arranged in the shell, a locking assembly is connected in the shell, the locking assembly includes a locking block movably arranged in the shell, a front locking head of the locking block, an elastic member that pushes the locking block outward is connected to the locking block, the thread hook needle assembly has a push block, the thread hook needle assembly moves down so that the push block contacts the locking block and pushes the locking block to retract inward; the puncture device has a locking hole, the thread hook device is inserted into the puncture device and the locking head enters the locking hole to lock the shell on the puncture device. Through the above method, the fascia suturing device with a locking assembly of the present invention fixes the position of the thread hook device during the thread hooking operation, avoids the thread hook device moving up and down during the operation and causing suturing failure, and improves the suturing effect.

This invention provides a fiber-based biomimetic polyurethane artificial blood vessel and its preparation method. The method involves using wet spinning technology to obtain filaments, which are then drawn and wound onto the surface of a metal tube to form a polyurethane fiber inner layer. A fabric middle layer is woven onto the surface of the polyurethane fiber inner layer. An organic solvent is sprayed onto the surface of the fabric middle layer, and an outer polyurethane fiber layer is prepared on the fabric surface using electrospinning technology. Finally, after curing and demolding, the fiber-based biomimetic polyurethane artificial blood vessel is obtained. This invention combines wet spinning, weaving, and electrospinning technologies to achieve integrated preparation of polyurethane artificial blood vessels. The resulting artificial blood vessel is of high quality, with a tightly bonded three-layer fiber-based structure that maximally mimics the three-layer structure of natural blood vessels. The inner layer provides excellent compliance, the fabric layer increases the blood vessel's impermeability and sutureability, and the outer layer effectively prevents vascular delamination and promotes endothelialization. Furthermore, the preparation method is environmentally friendly and pollution-free, with a short process flow, making it suitable for continuous industrial production.

The invention discloses a portable test question segmentation collator, and relates to the technical field of test question segmentation printing. A portable test question segmentation collator includes a content extraction output device having a content extraction component and a content output component, and an extraction assist member attached to the content extraction output device. The extraction assisting member is provided with a content dividing section. The content dividing portion is adapted to define a print medium into at least two parts and define a content extraction area on the print medium. And the extraction auxiliary component is suitable for positioning the content extraction output device at a relative preset position of the content extraction area. When the area of the test question to be extracted on the printing medium is larger than the area of the content extraction area, segmentation, extraction and output are carried out through the following method: the content segmentation part is used for defining the printing medium into at least two parts; the content extraction assembly is used for extracting the printing content on the printing medium of each part. And the content output component is used for outputting the extracted printing content of each part to a specified medium.

The utility model relates to the technical field of spherical sunlight room splicing, in particular to a spherical sunlight room splicing structure which comprises a first endurance plate, a second endurance plate and two supporting frames which are used for splicing to form a spherical sunlight room main body, the first endurance plate is fixedly connected with one supporting frame, and the second endurance plate is fixedly connected with the other supporting frame. The first endurance plate is fixedly connected with one supporting frame, the second endurance plate is fixedly connected with the other supporting frame, the bottom face of the first endurance plate is fixedly connected with a plurality of first splicing pieces, and the surface of the upper end of the second endurance plate is fixedly connected with a plurality of second splicing pieces. Other tools and connecting pieces are not needed in the whole splicing process, convenience is achieved, the splicing efficiency is effectively improved, by arranging an adjusting mechanism, the distance between the first endurance plate and the two supporting frames and the distance between the second endurance plates and the two supporting frames can be flexibly adjusted, the adjustability is higher when the second endurance plates and the first endurance plates are spliced, and the splicing effect is improved.

The invention provides an image splicing method, system and device for a gate, and a storage medium. The method comprises the following steps: collecting an image in real time through a camera arranged at the position of the gate; inputting the previous frame image and the current frame image into an optical flow estimation model, and determining transverse motion data and longitudinal motion data according to output data of the optical flow estimation model; determining a starting point and an ending point of an image extracted from the current frame image based on the transverse motion data; extracting a splicing segment image from the current frame image based on a preset image extraction starting point and the width of the extracted image; processing the spliced segment image according to the longitudinal motion data to obtain a to-be-spliced image; and splicing the to-be-spliced image to one side of the output image corresponding to the previous frame of image to serve as the output image corresponding to the current frame of image. According to the invention, the image splicing effect for the gate is improved.

The invention relates to a method, a device, equipment and a medium for improving a vehicle side splicing effect, and the method comprises the steps: obtaining a video sequence for a vehicle side, and detecting a vehicle region in the video sequence according to the video sequence; according to a preset light metering area, determining an image area, corresponding to the light metering area, of each frame of image in the video sequence; for each image area, performing photometric analysis on the image area to obtain a photometric analysis result, and according to the photometric analysis result, performing brightness compensation on the image area to adjust the brightness of the image area to preset reference brightness to obtain a vehicle area image subjected to brightness compensation; and splicing all the vehicle area images after brightness compensation to generate a complete vehicle side image. According to the scheme, through continuous and unified photometric analysis and brightness compensation processing, the splicing quality of the vehicle side image is remarkably improved, and the image details and the visual effect are enhanced.

This application discloses an image processing method, apparatus, device, and storage medium. The technical solution provided by this application identifies temperature abrupt change points in an original image set, determines the image to be compensated from the original image set based on these temperature abrupt change points, and determines a reference image for each image to be compensated based on the position information of the image to be compensated and each original image in the original image set. Temperature compensation is then performed on each image to be compensated based on a first mask image of the image to be compensated and the corresponding reference image. This improves the temperature measurement effect of the original images in the original image set, eliminates the need to wait for the infrared camera's thermal stabilization time before capturing the original image, and effectively improves image acquisition and image stitching efficiency.

The invention provides a self-lubricating bearing gasket automatic nondestructive testing system based on a visual mechanical arm, which is used for terahertz wave detection of a workpiece, and comprises a visual mechanical arm control system for moving the workpiece, and a terahertz system for performing terahertz imaging and analysis on the workpiece, the detected surface of the workpiece is larger than a scanning imaging window of the terahertz system; when a workpiece is detected, a mechanical arm of the visual mechanical arm control system clamps a workpiece sample, so that a detected surface of the sample intermittently moves at a scanning imaging window of the terahertz system, the detected surface is locally scanned and imaged by the terahertz system after each movement, and then each local image is spliced; a detected surface integral image capable of being used for terahertz analysis is formed; according to the invention, the detection efficiency can be improved, positioning errors caused by manual operation are greatly avoided, the image splicing effect is improved, the safety of detection personnel is guaranteed, and automatic detection of complex parts is realized.

The building construction formwork comprises a bottom plate, a connecting frame arranged at the top of the bottom plate and the splicing structure for assembling the bottom plate and the connecting frame, and the splicing structure comprises limiting plates symmetrically arranged on the side surfaces of the connecting frame, threaded grooves symmetrically formed in the limiting plates and horizontal plates symmetrically arranged on the side surfaces of the bottom plate. The vertical plate is arranged at the top end of the horizontal plate, and a limiting groove allowing the limiting plate to be inserted is formed in the side surface of the vertical plate; the splicing structure has the beneficial effects that through the designed splicing structure, limitation during splicing of the bottom plate and the connecting frame is increased through cooperation of the limiting plates and the limiting grooves; the limiting plates inserted into the limiting grooves can be stabilized, so that rapid splicing of the bottom plate and the connecting frame is realized; the horizontal plate and the vertical plate are firmly spliced by utilizing the matching of the fastener and the bolt; the splicing performance of the bottom plate and the connecting frame is further improved through cooperation of the limiting columns and the inserting grooves; the strength of the connecting frame is further improved through cooperation of the stand columns and the connecting rods.

The utility model relates to the field of aluminum veneers, in particular to a spliced aluminum veneer. Comprising a spliced aluminum veneer body, a first threaded groove and a second threaded groove are formed in the spliced aluminum veneer body, a lifting and splicing assembly is slidably mounted in the spliced aluminum veneer body, a fixing assembly is fixedly mounted on one side of the lifting and splicing assembly, and positioning assemblies are fixedly mounted on one side of the fixing assembly and one side of the lifting and splicing assembly; a convenient-to-take assembly is movably installed in the spliced aluminum veneer body, a supporting assembly is fixedly installed in the spliced aluminum veneer body, and limiting assemblies are fixedly installed at one end of the supporting assembly, the outer surface of the supporting assembly and one side of the convenient-to-take assembly. The technical problem that splicing and taking are inconvenient is solved.

The application relates to a ligament rupture repair implant, belonging to the field of ligament repair technology, which comprises an implant body and a net body, the implant body is used for being inserted between two ends of a ligament tear, and the net body is provided with one at each end of the implant body, and the net body is circumferentially arranged on the implant body. The application has the advantages that a suture can be easily sutured to the net body circumferentially arranged on the implant body, suture operation of medical staff is facilitated, and in the suture process, the net body can be deformed along with the suture of the suture, the possibility of causing a ligament tear during suture is reduced, and the suture effect of the implant at the ligament tear is improved.

The utility model relates to the technical field of highway construction, and discloses a splicable road isolation device which comprises a stand column, a first splicing rod, a second splicing rod and a protection plate, an embedding groove is formed in the first splicing rod, and a connecting piece is installed at the top end of the protection plate. The first splicing rod and the second splicing rod are installed on the side edges of the different stand columns respectively, and the protection plates are installed on the two side edges of the different stand columns in a similar way, so that when combined use is needed, the insertion blocks can be inserted into the embedding grooves, and the protection plates are installed on the two side edges of the different stand columns. The connecting bolt is rotated after passing through the mounting hole to reach the position of the threaded groove, and then the connecting bolt reaches the position of the positioning groove to complete bottom connection, so that the splicing work between the first splicing rod and the second splicing rod can be completed in the working process, and the clamping pin is used for connecting and locking at the position of the connecting piece; therefore, the overall splicing capacity is well improved in the working process, and the construction applicability is improved.

The invention discloses assembly type wallboard splicing equipment, and belongs to the technical field of wallboard mounting, the assembly type wallboard splicing equipment comprises a counterweight seat, a mounting frame is arranged on one side of the top of the counterweight seat, a connecting box is arranged on the top side in the mounting frame, a fixing box is fixedly connected to the top of the connecting box, and an inclination adjusting assembly is arranged in the fixing box. According to the device, after the device is used for a long time, when a connecting box and a fixed box incline due to abrasion of a concave frame, a roller, a sliding groove and a mounting frame, a balancing weight in the fixed box can horizontally move at the moment, and the balancing weight can drive a connecting block and a vertical plate to convey liquid in a liquid bag into a first cavity; and the piston drives the sliding block and the wear-resisting block to move towards the outer side away from the concave frame, so that the wear-resisting block is in contact with the inner wall of the mounting frame, and the friction force between the mounting frame on the higher side in the inclination process is increased to assist in adjusting the levelness between the connecting box and the fixed box.

The utility model discloses a suturing matching supporting device, which belongs to the technical field of medical instrument auxiliary equipment and comprises a lower cover plate, a connecting plate is fixedly welded at the bottom of the lower cover plate, the side wall of the connecting plate is welded with the side wall of a movable plate, and a sliding rail for connection is arranged on the end face of the lower cover plate; a T-shaped sliding plate used for connection is welded to the bottom of the upper cover plate, the sliding plate is in sliding connection with the sliding rail, and the upper cover plate abuts against the lower cover plate; an upper arc plate and a lower arc plate which are movably connected are arranged in the upper cover plate and the lower cover plate respectively, and the side wall of the lower arc plate is connected with the lower cover plate through a spring with a damper. And the top of the bottom plate is symmetrically provided with two sliding rods used for limiting, a threaded rod convenient to drive is arranged between the two sliding rods, and the threaded rod and the sliding rods are connected with the movable plate. The arm fixing device not only can fix the arm of a patient for multiple times, but also can adjust the position of the connecting plate according to the height of the patient, so that the practicability of the device is improved.

The utility model relates to an arc-shaped screen supporting assembly, which is used for supporting an arc-shaped screen, the arc-shaped screen is provided with a projection surface and a supporting surface, the arc-shaped screen supporting assembly comprises a plurality of first locking hasps fixedly arranged on the supporting surface, the first locking hasps are matched with second locking hasps, the second locking hasps are fixedly connected with a plurality of layers of supporting plates, and the supporting plates are arranged on the supporting surface. The multiple layers of supporting plates are arranged in the height direction of the arc-shaped screen. The supporting plates are fixedly connected with a plurality of supporting frame assemblies, and the supporting frame assemblies are arranged around the axis of the arc-shaped screen. The first locking hasp is matched with the second locking hasp, the supporting plate and the arc-shaped screen are driven to be locked, the phenomenon that the screen is damaged in the installation process is reduced, meanwhile, the first locking hasp is arranged on the supporting face of the arc-shaped screen, the overall utilization rate of the screen can be increased, and the splicing effect is improved.

The utility model discloses a dry hanging stone closing-up connecting structure which comprises an original building wall body and a stone plate arranged at the internal corner of the original building wall body, and a connecting assembly for fixing the stone plate and the original building wall body is arranged between the original building wall body and the stone plate. Galvanized angle steel is fixed to the side, close to the riveting piece, of the stone hanging piece. According to the connecting assembly, the riveting piece is rigidly connected with the original building wall, the hanging piece is rigidly connected with the stone, and the riveting piece and the hanging piece are rigidly connected through welding or threaded connection by using the galvanized channel steel and the tinned angle steel, so that the overall stability of the connecting assembly is improved; the overall anti-seismic and anti-deformation capability can be improved, and the falling risk is reduced; the horizontal adjusting structure is in sliding fit with the moving block through an inclined groove formed by a limiting protrusion, a bolt locking mode is combined, and the stone hanging piece is allowed to be fixedly locked after being bidirectionally translated in the inclined groove direction.

The utility model relates to the technical field of water conservancy projects, and discloses an underwater bubble curtain sediment intercepting device which comprises a fixing plate, the top wall of the fixing plate is fixedly connected with an air compressor, a flow meter is fixedly installed on the left side of the bottom of the air compressor, and the bottom end of the flow meter is communicated with a conveying pipe. The rear end of the conveying pipe is fixedly connected with a valve, the rear end of the valve communicates with a connecting pipe, the rear end of the connecting pipe communicates with a connecting shell, the top wall of the connecting shell communicates with a plurality of spraying pipes at equal intervals, the bottom of the connecting shell is fixedly connected with a base, and the left side and the right side of the top of the base are each provided with a limiting assembly. According to the utility model, high-pressure airflow passes through a plurality of spray pipes to output bubbles, so that the bubbles which are continuously released can change a surrounding flow field, vertical circulation is formed on two sides of a bubble curtain by continuous aeration, silt is limited on one side of muddy water under the action of the circulation, and further ship navigation is prevented from being hindered.

The utility model relates to a kind of for precast concrete building component splicing mould, including splicing joint outer fixed plate, splicing joint inner filling fixed part, the splicing joint outer fixed plate is oppositely set, the splicing joint inner filling fixed part is provided with several groups, several groups splicing joint inner filling fixed part are arranged between opposite side splicing joint outer fixed plate, and the both ends of splicing joint inner filling fixed part are fixed on splicing joint outer fixed plate.This mould is through the unique structural design, realizes the dense filling and stable fixation of splicing joint, improves the splicing quality and the structural performance of building, strengthens the effect of splicing, simultaneously, using internal reinforcing member as the fixed structure of external formwork component, external formwork can be reused, reduce cost, it is suitable for use.

The utility model relates to the field of acoustical boards, in particular to a sound insulation mineral wool acoustical board which comprises an acoustical board body, a splicing assembly is fixed to the side surface of the acoustical board body, a dismounting assembly is arranged on the surface of the splicing assembly, the splicing assembly comprises a connecting frame fixed to the acoustical board body, and a U-shaped cylinder is fixed to the surface of the connecting frame. A first sliding groove is formed in the surface of the U-shaped barrel, and a first spring is arranged in the U-shaped barrel. The first convex columns slide and are clamped with the other set of splicing frames at the same time, the first springs can push the first convex columns to be clamped with the first limiting holes, and therefore the multiple sets of sound absorption board bodies can be clamped conveniently, splicing is convenient, use is convenient and fast, meanwhile, due to the fact that the rectangular strips, the arc-shaped blocks and the clamping strips are arranged on the surfaces of the connecting frames, positioning is convenient when the device is spliced up and down, and the splicing efficiency is improved. The splicing effect is improved, the second protruding columns can be separated from the second limiting holes by sliding the second protruding columns, the rectangular columns can be separated from the connecting frame by sliding the rectangular columns, and therefore the acoustic panel body can be replaced conveniently.