539 results about "Sound barrier" patented technology

The invention discloses a control method and device for a mounting and dismounting integrated robot of a sound barrier, and relates to the field of robot control. According to the method, a digital twinborn model and a dynamic environment model are constructed according to original sensor data, and a current environment risk value is determined; a mounting or dismounting sequence is generated based on a sound barrier topology rule, and a motion path and a mechanical arm motion track are generated according to the digital twin model, the dynamic environment model and the mounting or dismounting sequence; rehearsing the motion path and the motion track of the mechanical arm in the digital twin model, and when a rehearsing result meets a preset requirement, generating an initial instruction based on the motion path and the motion track of the mechanical arm; the current clamping force is determined through an impedance control algorithm, the current hoisting parameter is determined according to the load weight, the initial instruction is adjusted according to the current clamping force, the current hoisting parameter and the current environment risk value to obtain a control instruction, and the control instruction is executed. By implementing the technical scheme provided by the invention, the mounting and dismounting efficiency is improved, and the operation safety is enhanced.

The invention discloses a carbon fiber composite material sound barrier forming device, and relates to the technical field of sound barrier forming, the carbon fiber composite material sound barrier forming device comprises a working bottom table and a first supporting column, the first supporting column is fixedly connected to the top surface of the working bottom table, an upper mold is installed on the lower surface of the top end of the first supporting column, a sound insulation barrier is arranged on the working bottom table, and an auxiliary assembly is arranged on the working bottom table; production and forming of the carbon fiber composite material sound barrier are divided into simultaneous operation of four stations with coherent processes, the four stations do not interfere with one another during operation, and the problems that in the traditional hot press forming process, equipment is in an idle state during cooling, demolding and other steps, four stations are adopted for simultaneous operation, and when one station is used for cooling and demolding, the equipment is not in an idle state are solved. Other stations can be used for machining, residue removal or release agent spraying, feeding and other operations, the equipment utilization rate is greatly improved, no obvious intermittency exists in the production process, and therefore more carbon fiber composite material sound barriers can be produced in unit time.

The partial or full dehydration of organic or inorganic matter containing water by induction of matter into a vacuum and processing matter through a specially designed acceleration channel is disclosed. The inducted matter accelerates in air from zero speed to sub-sonic speed to reach supersonic speed. As the material transitions the sound barrier, it is subject to acoustic shock waves and an instant negative pressure drop occurs. The sound waves disintegrate, disinfect the material and extract part or all moisture from any organic or inorganic material.

The embodiment of the invention discloses a noise reduction regulation and control method and device for a self-adaptive sound barrier and a medium, and relates to the technical field of noise reduction, and the method comprises the steps: collecting multi-source vehicle noise data which comprises current sound pressure signal time sequence data, preposed sound pressure signal time sequence data and preposed vehicle point cloud data, according to the front sound pressure signal time sequence data and the front vehicle point cloud data, determining a noise source position prediction result corresponding to a sound barrier front node so as to perform sound field prediction on the sound barrier node, and determining a corresponding sound field energy distribution thermodynamic diagram; according to a preset sensitive frequency band threshold value, a target noise high-frequency band needing to be offset is determined in the sound field energy distribution thermodynamic diagram, so that a reverse sound wave signal corresponding to a phase array offset module is generated, and the target noise high-frequency band is offset; and according to the current sound pressure signal time sequence data and the reinforcement learning strategy, determining dynamic sound absorption regulation and control parameters of the dynamic sound absorption module so as to absorb a low-frequency band.

The invention provides a sound barrier corrosion state identification method based on image and multi-sensor data fusion, and relates to the field of data processing. The method comprises the following steps: acquiring image data and multi-sensor data of a target area of a target sound barrier; extracting a first corrosion area feature from the image data; according to the multi-sensor data, constructing a second corrosion area feature by adopting GRU coding; based on the first corrosion region feature and the second corrosion region feature, calculating by adopting a space-time diagram neural network to obtain a corrosion risk score of the target region; and determining the corrosion state of the target sound barrier according to the corrosion risk score. By implementing the technical scheme provided by the invention, the accuracy of identifying the corrosion state of the sound barrier is improved.

The invention provides a laser plasma sound barrier and magneto-rheological antiknock array collaborative protection method. The method comprises the following steps: firstly, constructing a collaborative protection structure consisting of a laser plasma sound barrier layer and a magneto-rheological antiknock array layer; a shock wave leading signal is detected in real time and input into a preset multi-dimensional feature model, the model dynamically generates a protection strategy, and a sound barrier instruction and an anti-explosion instruction are output respectively. The laser plasma sound barrier layer outputs specific reverse sound waves according to a sound barrier instruction and attenuates shock waves through destructive interference; meanwhile, the magneto-rheological anti-explosion array layer instantaneously solidifies a magnetic field according to an anti-explosion instruction, and shock wave energy is efficiently absorbed. According to the laser plasma sound barrier and magneto-rheological anti-explosion array cooperative protection method provided by the invention, the cooperative protection structure and the preset multi-dimensional feature model are constructed, so that the cooperative effect of the sound barrier and the anti-explosion array is realized, the response speed to shock waves is increased, the energy processing efficiency is improved, and the adaptability and reliability of protection are enhanced.

The invention discloses an integrated photovoltaic sound barrier which comprises a single-face power generation photovoltaic sound barrier module, a sound barrier interaction module and a double-face power generation photovoltaic sound barrier module. The structures of the single-sided power generation photovoltaic sound barrier module, the sound barrier interaction module and the double-sided power generation photovoltaic sound barrier module are constructed to be stacked up and down to form a photovoltaic sound barrier body, so that full-frequency noise within the range of 200Hz-2000Hz is effectively absorbed. According to the photovoltaic sound barrier, the photovoltaic power generation function and the sound absorption and insulation noise reduction function of the photovoltaic sound barrier are integrated, through modular design and stacking assembly, the use area and the power generation efficiency of a photovoltaic assembly are effectively improved, the sound absorption frequency band is widened, and the noise reduction effect is improved.

The embodiment of the invention discloses a sound barrier optimization method and device based on a noise source database and a medium, and relates to the technical field of sound barriers, and the method comprises the steps: collecting the multi-source noise time sequence data corresponding to a target road, carrying out the noise feature extraction and noise prediction based on the multi-source noise time sequence data, constructing the noise source database, and obtaining the noise source database; the noise source database comprises a real-time noise feature database corresponding to a current time node and a predicted noise feature database corresponding to a future time node; performing multi-period noise propagation simulation on the noise sensitive area of the target road through the real-time noise feature database and the predicted noise feature database, determining sensitive noise data corresponding to multiple time nodes, and determining a multi-period constraint condition corresponding to the sound barrier; and based on the multi-period constraint condition and a preset multi-objective optimization algorithm, determining a corresponding sound barrier design parameter solution set, so as to determine a sound barrier optimization strategy according to the design parameter solution set.

The invention discloses a sound barrier sound insulation characteristic evaluation method suitable for a real ship complex sound field, and belongs to the technical field of real ship sound barriers, and the method comprises the steps: arranging hydrophone arrays at acoustic mirror symmetry positions at two sides of a real ship fairing sound barrier to form an in-situ measurement pair; controlling the ship to sail at a plurality of navigational speeds, and synchronously acquiring sound pressure time domain signals on two sides; carrying out preprocessing and time-frequency analysis on the signals, and calculating sound pressure levels of a sound facing surface and a sound backing surface to obtain an in-situ sound pressure level difference; and based on the sound pressure level difference at different navigational speeds, analyzing the change rule of the sound insulation performance along with the frequency and the navigational speed, and carrying out comprehensive evaluation. In addition, by arranging a vibration sensor and a turbulence measuring device, path separation of structural sound and flow-induced noise is achieved, spatial coherence weighted average is introduced, and the accuracy and representativeness of evaluation under a complex sound field are improved. The method overcomes the limitations of laboratory test environment distortion and single working condition, and can truly and comprehensively reflect the actual sound insulation efficiency of the sound baffle in the dynamic navigation of a real ship.

The invention discloses a sound barrier-based viaduct noise radiation prediction method and device and a medium, and relates to the technical field of noise radiation prediction, and the method comprises the steps: obtaining noise source data, and carrying out the noise feature extraction of a noise source state of the noise source data, so as to obtain a noise source feature matrix; obtaining dynamic environment data, and performing environment key parameter analysis on the dynamic environment data to determine environment parameters; based on the noise source feature matrix and the environmental parameters, a noise radiation path is obtained through mixed sound ray tracking; according to the noise radiation path, initial arrangement data of the sound barrier are determined through sound barrier interception configuration; and carrying out sound barrier interception optimization on the initial arrangement data of the sound barrier to obtain a multi-source sound barrier configuration strategy. According to the method, the technical problem that noise radiation prediction in a viaduct environment cannot meet sound barrier arrangement is solved.

The invention provides a sound barrier multi-risk fusion identification method and device based on deep learning, and relates to the field of data processing. The method comprises the following steps: acquiring detection data for target sound barrier risk detection; determining risk assessment data corresponding to the risk factors according to the detection data; carrying out data fusion on the risk assessment data by adopting a deep learning model to obtain risk category probability distribution; and determining whether the target sound barrier has a risk based on the risk category probability distribution. By implementing the technical scheme provided by the invention, the accuracy of sound barrier risk identification can be improved.

The invention relates to the technical field of multi-layer material preparation, in particular to a high-light-transmittance weather-proof impact-resistant striped sound insulation board. The problem that transparency, weather resistance and sound insulation effect of a traditional stripe material are difficult to consider at the same time is solved. The light scattering and absorption center is reduced and high transparency and low haze are realized through reactive extrusion of the recycled material, combination of high-temperature adsorption activated carbon, multi-stage high vacuum and deep purification of a reactive decolorizing agent, and matching of transparent dispersion diffusion master batch and a compatilizer. The surface layer adopts the core-shell weather-resistant master batch and the secondary high-energy UV fluorosilicone curing coating for double shielding of ultraviolet and inhibition of photodegradation and yellowing; styrene-maleic anhydride damping resin is introduced into the middle layer, and uniform inclined micropores and asymmetric stripes formed by supercritical CO2 are combined, so that the medium and low frequency sound insulation index is improved; the bottom layer is repaired and guaranteed to be durable in impact resistance by virtue of a core-shell toughening agent and molecular chain extension; the defects of traditional products are overcome, and the service life requirement of sound barriers for expressways and rail transit is met.

The present invention discloses a rail transit sound barrier based on phononic crystal cells, which is divided into several cells of equal volume by dividing modules; a resonance cavity with an opening on one side is embedded in each cell; one side of the opening of the resonance cavity faces the sound source; the opening extends outward in a trumpet shape to increase the sound receiving area; several phononic crystal cells that do not contact each other are fixedly arranged in the resonance cavity; the resonance cavity in the present invention can achieve triple acoustic performance improvements, namely sound insulation, sound elimination and sound absorption: its overall appearance belongs to a Holmhelix resonance cavity, which is itself a good sound elimination device, which is the first sound elimination; the trumpet-like opening structure on the sound source side is conducive to the introduction of sound waves, and the phononic crystal cells are arranged inside, which is the second sound insulation of the device; the tail adopts a boss with the same size as the end of the trumpet mouth, which is conducive to the flow of sound waves, and a certain thickness of sound-absorbing rock wool is used on the inner wall of the tail, which is the third sound absorption.

The invention discloses a sound barrier made of a tailing material and a preparation method of the sound barrier, and belongs to the technical field of sound barriers. The sound barrier comprises a base material, a functional additive and a self-healing additive, and the base material mainly adopts tailing particles and is compounded with alumina powder, Portland cement and nano-hydroxyapatite; the functional additive is prepared from a polypyrrole-polyaniline compound, silicon dioxide nano aerogel, nano molybdenum disulfide particles and polyacrylate coated paraffin microcapsules; the self-healing additive is prepared from polyurethane coated epoxy resin microcapsules, polyurethane coated amine curing agent microcapsules, CaCO3 microcrystals, nano montmorillonite particles and nano nickel coated carbon particles. Resource utilization of the tailings is achieved, and the mechanical property, the sound absorption and insulation performance, the self-healing performance and the weather resistance of the sound barrier are remarkably improved.

The utility model relates to the technical field of sound barriers, in particular to a sound barrier with a protection mechanism, and adopts the technical scheme that the sound barrier with the protection mechanism comprises stand columns, a barrier plate, grooves, convex blocks, a protection plate and first anchoring holes; three barrier plates which are arranged from top to bottom are arranged between the two stand columns which are opposite in the left-right direction, grooves are formed in the stand columns, the left sides and the right sides of the barrier plates are fixedly connected with protruding blocks matched with the grooves, the front portions and the rear portions of the stand columns are each provided with two protection plates located at the joints of the barrier plates, and four first anchoring holes are formed in each protection plate. According to the sound barrier, an existing sound barrier is improved, the protection plates located on the front side and the rear side of the joint of the barrier plates are additionally arranged on the stand columns, the protection plates are tightly attached to the joint of the barrier plates, the joint of the barrier plates is protected, the phenomena of air leakage and sound leakage at the joint of the barrier plates can be prevented, and the noise reduction efficiency of the sound barrier is improved.

The utility model discloses a sound barrier structure arranged back to a noise source, which comprises a T-shaped device body, the top end of the device body is provided with a sound absorber structure, the sound absorber structure comprises a plurality of tip sound absorbers which are arranged in sequence, each tip sound absorber is of an isosceles right triangle structure, and the tip sound absorbers are arranged at the top end of the T-shaped device body. The first right-angle side of each tip sound absorber serves as the bottom of the tip sound absorber and is connected with the top end of the T-shaped device body, the first right-angle sides and the inclined sides are arranged in the mode that the first right-angle sides and the inclined sides do not face a noise source, namely the second right-angle sides are opposite to the noise source, and the second right-angle side of each tip sound absorber serves as the height of the tip sound absorber and is right opposite to the noise source in a vertical mode. Compared with the prior art, the sound barrier structure has the highest insertion loss value within the center frequency range of 500 Hz to 1600 Hz, so that the sound wave absorption rate is highest, and the noise reduction effect is best.

The invention discloses a sound barrier self-adaptive acoustic diffuser regulation and control method, equipment and a medium, and relates to the technical field of sound barrier regulation and control. The method comprises the steps that noise signals on the two sides of a sound barrier are collected, and traffic flow data and meteorological parameters are synchronously obtained; performing multi-scale spectrum analysis on the noise signal to obtain spectrum features; calculating a sound field coupling effect between adjacent units according to the topological connection relationship of the diffuser units; inputting the spectrum characteristics, the traffic flow, the meteorological parameters and the sound field coupling effect into a pre-trained mapping model to generate a regulation and control instruction; the diffuser units are driven to adjust geometric parameters according to the regulation and control instruction, the adjustment priority of the diffuser units is distributed, and the geometric parameters comprise the groove depth and the distance between every two adjacent units. According to the method, the wide-frequency-band noise suppression effect is improved, the sound energy transfer matrix is constructed, the insertion loss contribution rate is calculated, the priority is scientifically distributed and adjusted, and overall performance reduction caused by local optimization is avoided.

The invention discloses a method for evaluating a subjective noise reduction effect of a photovoltaic sound barrier. The method comprises the following steps: measuring, collecting and analyzing a sound sample before noise control; establishing a sound barrier prediction model, and calculating sound barrier insertion loss; synthesizing a noise-controlled sound sample; according to the sound sample before noise control, the sound sample after noise control and the sound barrier prediction model, calculating or measuring to obtain related parameters; and calculating the reduction percentage of the annoyance degree, and evaluating the subjective noise reduction effect of the photovoltaic sound barrier. Through the steps of collecting a sound sample before noise control, establishing a sound barrier prediction model, synthesizing a sound sample after noise control and the like, the annoyance degree reduction percentage calculated based on a sound absorption coefficient and psychoacoustic parameters is obtained, subjective experiments are not needed in the whole evaluation process, time and labor are saved, operation is easy and convenient, and evaluation is rapid and accurate.

The invention provides a resonant cavity broadband sound barrier based on a double-helix acoustic black hole. The resonant cavity broadband sound barrier comprises a plurality of double-helix acoustic black hole resonant cavity broadband sound absorption structure cells and a supporting and connecting assembly. The multiple double-spiral acoustic black hole resonant cavity broadband sound absorption structure cells are connected together through the supporting and connecting assemblies, and a plate-shaped sound barrier is formed; the double-spiral acoustic black hole resonant cavity broadband sound absorption structure cell is in the shape of a hollow regular hexagon nut, the inner side face of the cell is open, and six cavities with the inner sides open are formed in the cell. Two spiral curved surface rolling plates with the same or different spiral curve parameters are arranged in each cavity; the curved surface of the spiral curved surface rolling plate is perpendicular to the upper end face and the lower end face of the double-spiral acoustic black hole resonant cavity broadband sound absorption structure cell. A plurality of protruding teeth are distributed on the inner side face and the outer side face of the spiral curved-surface rolling plate. The invention has the advantages that the broadband sound absorption characteristic is realized; certain ventilation and lighting performance is achieved, and the driving environment of an inner channel of the closed traffic sound barrier can be more comfortable.

The invention belongs to the technical field of road traffic noise reduction, and particularly relates to a sound barrier shape optimization method based on an isogeometric particle swarm singular boundary method. Comprising the steps of building a sound barrier geometric model, building a sound barrier shape optimization model, building a Burton Miller type singular boundary method program, calculating sound pressure, carrying out particle swarm iterative solution, outputting an optimization result and the like. According to the method, the model is optimized based on the isogeometric singular boundary method of the basic solution of the acoustic control equation for the first time, the model is applied to the optimization design of the sound barrier, the sound barrier is optimized by combining the particle swarm optimization method, only the size of the target function is needed, complex sensitivity derivation is not needed, and when the sound barrier with the complex shape is calculated, the method is simple and convenient to operate. The method has great flexibility and high efficiency, seamless integration between CAD and CAE is realized by introducing isogeometric analysis, namely representing geometric boundaries by using an NURBS function, and a tedious grid division step in an optimization process is avoided, so that the precision and efficiency of sound barrier optimization are remarkably improved.

The utility model relates to a staggered and superposed wave-shaped sound barrier which comprises a base and a frame. The base is fixedly connected with the frame, and the plate body, the first wave-shaped screen body assembly and the second wave-shaped screen body assembly are sequentially installed on the inner side of the frame from front to back. Wherein the first wave-shaped screen body assembly and the second wave-shaped screen body assembly are similar in structure, each wave-shaped screen body assembly is composed of a plurality of wave-shaped sound absorption strips, and the left side face and the right side face of each wave-shaped sound absorption strip are both wave faces; the wave-shaped sound-absorbing strips in the first wave-shaped screen body assembly and the wave-shaped sound-absorbing strips in the second wave-shaped screen body assembly are arranged in a staggered manner, are overlapped with each other and then are fixedly connected with the plate body; and a wave-shaped sound barrier is formed. According to the wave-shaped sound barrier, the two layers of wave-shaped screen body structures are overlapped in a staggered mode, so that the path of sound waves is more complex when the sound waves pass through the sound barrier, the reflection, diffraction and absorption capacities of the screen bodies on noise are improved, noise energy is effectively weakened, meanwhile, the sound barrier can present rich light and shadow effects and dynamic aesthetic feeling along with changes of light rays and observation angles, and the sound barrier is more attractive. And the appearance is more attractive.

The invention discloses a sound barrier anomaly recognition method and device based on an anomaly detection model, and relates to the field of anomaly detection. In the method, a spatio-temporal data matrix is constructed according to a timestamp, spatial coordinates of a sensor and multi-dimensional data, and a preset state feature vector is constructed according to the timestamp, environmental data and current traffic flow data; constructing a sensor topological graph according to the spatio-temporal data matrix, obtaining a spatio-temporal feature vector of each time step according to the sensor topological graph, and determining an abnormal candidate event according to the target spatio-temporal feature vector; determining the confidence of the abnormal candidate event; and determining the sensor corresponding to the abnormal candidate event of which the confidence coefficient is greater than a second threshold value as a target sensor, determining an abnormal position in the sound barrier according to a space coordinate of the target sensor, and determining an abnormal type according to a target spatial-temporal feature vector corresponding to the target sensor. By implementing the technical scheme provided by the invention, the effects of accurately identifying the abnormal condition of the sound barrier and improving the detection efficiency and accuracy are achieved.

The utility model discloses a cadmium telluride power generation glass sound barrier which comprises a base frame, the base frame is of a U-shaped structure, movable grooves are formed in the inner walls of the two sides of the base frame, a lower sound insulation plate is arranged at the lower end in the base frame, a plurality of upper sound insulation plates are installed on the inner side of the base frame above the lower sound insulation plate, and movable blocks are arranged on the outer walls of the two sides of the upper sound insulation plates. A plurality of locking bolts are installed on the outer surfaces of the two sides of the base frame, one ends of the locking bolts penetrate through the base frame and are in threaded connection with the surfaces of the movable blocks, bottom frames are arranged on the two sides of the bottom end of the base frame, two L-shaped positioning bases are arranged on the outer walls of the bottom frames, and first cadmium telluride power generation glass is installed on the outer wall of one side of the lower sound insulation plate. Second cadmium telluride power generation glass is installed on the outer wall of the side, away from the first cadmium telluride power generation glass, of the lower sound insulation plate. According to the utility model, the purpose that the sound barrier is easy to replace and maintain is achieved, the energy utilization efficiency is improved, and the stability of the sound barrier in use is improved.

The invention discloses an adjustable sound barrier system for noise reduction of a transformer and a noise reduction method. The adjustable sound barrier system comprises a sound barrier and an adjustable silencer, and the adjustable silencer comprises a silencing device and an electric shutter; the blades of the electric louver are opened or closed, so that the electric louver has a good sound insulation effect but is not ventilated, or can be ventilated but does not have the sound insulation effect. Through the integrated design of the sheet type silencer and the electric shutter, on the premise that the noise reduction performance is ensured, the length of the silencer is compressed to 0.6-1.2 m from the traditional length of 1.5 m or above, and the occupied area and cost are remarkably reduced; according to the difference between day and night noise limit values and the real-time oil temperature of the transformer, working modes are automatically switched, and accurate control of'preferential daytime heat dissipation and preferential night noise reduction 'is achieved; an existing oil temperature monitoring system of the transformer is used as a data source, additional sensors are not needed, and the structure and wiring are simplified; and multiple alarm logics are set, shutter faults and oil temperature abnormity are found and prompted in time, and equipment and noise safety is guaranteed.

The invention discloses a sound barrier auxiliary rapid installation tool and method, and relates to the technical field of sound barrier plate installation. Comprising a telescopic joint, a rotary hoisting head arranged at the top of the telescopic joint, telescopic rods arranged at the two ends of the telescopic joint and protection devices arranged at the two ends of the telescopic rods and used for clamping rubber strips at the ends of a sound barrier screen body or supporting the screen body, and the protection devices completely cover and protect the rubber strips. And the screen body cannot be blocked by the rubber strip and can be smoothly lowered, so that the rubber strip can be prevented from being damaged, and the screen body can be smoothly mounted.

The utility model discloses a kind of basalt fiberboard sound barriers, belong to sound barrier technical field, including concrete bottom beam, its upper fixedly arranged with the support column of array arrangement;Barrier main body, it is by several fiber baffle from top to bottom splicing and is constituted, the fiber baffle includes plate main body, its both ends are fixedly arranged with mounting clamping block;Among them, the back of the support column both sides are all opened with several groups of installation slot corresponding with mounting clamping block.The technical points are: the mounting clamping block of fiber baffle both sides is aligned with the installation slot on support column, i.

The invention discloses a sound barrier rapid installation structure, system and installation method, and relates to the technical field of sound barrier installation, and the sound barrier rapid installation structure comprises a pressing plate base and a buckle pressing plate. The pressing plate base is in a long strip shape and provided with a mounting groove extending in the length direction of the pressing plate base. An opening extending in the length direction is formed in one side of the mounting groove; the buckle pressing plate comprises a pressing plate and a buckle; two side edges in the width direction of the pressing plate are used for respectively pressing the outer side surfaces of two adjacent screen bodies; the lower side of the pressing plate is fixedly connected with a buckle extending in the length direction of the pressing plate. Blocking parts protruding inwards are arranged on one or two inner side walls, in the width direction, of the mounting groove, and matching parts protruding outwards are arranged on one or two outer side walls, in the width direction, of the buckle; and the buckle can be inserted into the mounting groove through the opening. The method has the advantages of being high in construction efficiency, few in installation materials, low in cost, free of material falling risks, free of maintenance in the later period, capable of reducing accident disputes and the like.

The invention discloses a sound barrier sealing system, a metal screen body, a transparent screen body and a sound barrier system, and relates to the technical field of sound barrier sealing, the sound barrier sealing system comprises a first sealing joint, a second sealing joint, a third sealing joint and a pressing plate, the first sealing joint is integrally formed by the metal wall face of the metal screen body, and the second sealing joint is integrally formed by the metal wall face of the transparent screen body; the edge of the top extends outwards to form a first baffle; the second sealing joint is provided with a clamping groove and a second baffle plate; the clamping groove is used for inserting and clamping the edge of the transparent screen body; the third sealing joint is provided with a clamping groove and a third baffle, the clamping groove is used for allowing the edge of the transparent screen body to be inserted and clamped, and the third baffle is used for being in lap joint with the lower surface of the other adjacent transparent screen body; the pressing plate is detachably arranged on the cross beam, and the edge of the pressing plate in the width direction is used for being in lap joint with the upper surface of the metal screen body and / or the transparent screen body. According to the invention, all nodes in the totally-enclosed sound barrier system are designed, the purpose of waterproofing gaps at all nodes is achieved, and the waterproof effect is good.

The invention provides a high-speed railway subgrade filler with noise reduction and crack resistance functions and a preparation process thereof, and particularly relates to a totally-enclosed sound barrier structure for high-speed railway noise reduction engineering, which comprises an entrance-exit hole section, a plurality of standard sections and a plurality of expansion joint sections, the access hole section and the first standard section are sequentially connected front and back, the standard sections and the expansion joint sections are arranged at intervals one by one, and one expansion joint section is arranged between every two adjacent standard sections; the totally-closed sound barrier has the advantages that the totally-closed sound barrier is divided into the access hole section, the standard section and the expansion joint section, the access hole is connected with the stand columns through the steel beams inclining inwards by 45 degrees, the ends of the arc-shaped stand columns are connected through the double-curved-surface arc-shaped steel beams, the integrity of the steel structure is improved, splicing nodes are optimized, the standard section is formed by arranging the arc-shaped steel beams at the interval of 2 m, and the expansion joint section is formed. The arc steel beams are arranged at intervals at the position of the expansion joint, the standard steel beams on the two sides of the expansion joint are designed to be of a full-cloth structure, firmness is improved, and the safe, reliable, economical and practical sound barrier design is formed.

The invention discloses a control method and device of a sound barrier inspection and maintenance integrated robot, and relates to the field of robot control. According to the method, a three-dimensional digital twinborn model is constructed according to structural feature data and material attribute data of a sound barrier; generating an initial inspection path, constructing a dynamic obstacle avoidance strategy, correcting path planning parameters in real time to obtain a current inspection path, and collecting an image, bolt resonant frequency and environmental parameters of each target area of the sound barrier based on the current inspection path; determining a corrosion target area according to the image, determining a corrosion area ratio and a loosening displacement according to the corrosion target area, a bolt resonant frequency and a three-dimensional digital twinborn model, and determining an environmental corrosion factor according to the environmental parameters; and the damage index of the target area is determined according to the corrosion area ratio, the loosening displacement and the environment corrosion factors, and the main mechanical arm and the auxiliary mechanical arm are controlled to maintain the target area according to the damage index. By implementing the technical scheme provided by the invention, the inspection and maintenance efficiency is remarkably improved.