43 results about "Road surveying" patented technology

The invention discloses a short-time rail transit flow prediction method and device based on a decoupling process. The method belongs to the technical field of public transport data analysis and prediction, and comprises the following operation steps: collecting subway AFC card punching data to obtain a passenger OD data set; defining a region to establish a rail transit reality topological structure, and designing a multi-modal convolution feature map through entity subway road measurement data and an OD data set; the method comprises the following steps of: improving an initial Cell structure of an LSTM (Long Short Term Memory), fusing a Swin Transform module into the Cell, and adjusting an original gating structure; and constructing a prediction network by using the IST-LSTM as a new prediction unit and the SBULSTM in parallel. According to the method, AFC clock-in data is collected, a new multi-modal convolution feature map is constructed by using a dynamic time warping method, and a new multi-modal convolution feature map is established by simulating a signal decoupling process; meanwhile, an LSTM unit is improved, and the attention function of Swin Transform is integrated, so that all time features in a time period can be captured, global decoupling information provided by the multi-modal convolution feature map can be enhanced, and the prediction accuracy of the rail traffic flow is improved.

The invention relates to the field of road measuring devices, in particular to a road gradient measuring device and a measuring method.The road gradient measuring device comprises a vehicle body and further comprises a measuring box, a storage box is installed at the upper end of the vehicle body, the measuring box is located on the inner side of the storage box, driving wheels are installed at the front end and the rear end of the vehicle body, and the two driving wheels are located on the left side and the right side of the vehicle body; the outer sides of the two driving wheels are connected through a crawler belt, a box cover is installed at the upper end of the storage box, and the front end and the rear end of the measuring box are movably connected with the storage box through lifting assemblies. The measuring device is placed at the slope bottom of the road, the RTK positioning module collects information at different positions of the road through walking of the vehicle body, height information of the multiple positions of the road is obtained, remote control and data wireless transmission are achieved through the wireless module, personnel can conveniently control through terminal equipment, and in the measuring process, the measuring efficiency is improved. And personnel do not need to check and record data information all the time, so that the working intensity is reduced, and the convenience is improved.

Described are systems and techniques for road surveying. Information indicative of a sequence of target road sections each comprising one or more road segments can be used to configure a vehicle to perform a road survey by traveling each target road section of the sequence. Data acquisition can be started from onboard sensors of the vehicle based on detecting a first trigger event where a current position of the vehicle is within a configured threshold distance from a first target road section of the sequence. Respective road survey data can be obtained for each road segment in each target road section of the sequence, and can comprise a subset of acquired data obtained from the onboard sensors between a corresponding start and end point automatically determined for the respective road segment based on detecting the occurrence of trigger events corresponding to the current vehicle position and / or heading.

1. The name of the design product: electronic engineering road surveying instrument. 2. The use of the design product: the design product is used for road engineering surveying. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

The invention provides road traffic planning and design surveying equipment which comprises a box body, moving wheels, telescopic rods and a lifting frame structure, a tilt angle sensor and the four telescopic rods are arranged below a partition plate at the lower end of the box body, the tilt angle of the box body can be detected in real time through a PID self-adaptive control module, and the telescopic amount of the telescopic rods is automatically adjusted; measuring equipment is ensured to be located on a horizontal reference surface, and distance and angle measurement accuracy is improved; the handle box on the side surface of the box body and the moving wheels realize convenient transfer of the equipment, and collision loss of the instrument in the carrying process is reduced; the shield at the top end of the lifting frame and the measuring instrument bottom frame form a two-degree-of-freedom adjusting mechanism, the shield can transversely rotate by 360 degrees, the measuring instrument bottom frame achieves head raising / lowering angle adjustment through an arc groove and a clamping column structure, the measuring datum plane can be accurately calibrated in cooperation with scale marks and a rotary adjusting bolt, and the measuring requirements of different terrains and directions are met. Through automatic horizontal calibration, multi-angle adjustment and integrated design, the precision and efficiency of road survey are improved.

The utility model relates to the technical field of measuring devices, in particular to an integrated measuring device for surveying municipal roads, which comprises a shell component, an operating component is arranged at the position, close to the upper end, of the shell component, a measuring component is rotatably connected to the inner side of the shell component, and the shell component comprises a ruler shell and an inner ring shell. The left side and the right side of the inner ring shell are fixedly connected with permanent magnet blocks, the inner side of each permanent magnet block is provided with a containing groove, the inner side of each containing groove is fixedly connected with two sealing air bag rings, the inner side of each containing groove is provided with a flow dividing hole, and the inner side of the ruler shell is provided with a branch channel and a cylindrical square groove; when the device is used for measuring the gradient of the municipal administration, the tedious adjusting process before measurement of a traditional gradient ruler is simplified, the requirement for multiple times of measurement can be rapidly met, and the convenience of gradient survey at the initial stage of construction is remarkably improved.

This invention discloses a method for transporting tall, long arch ribs on complex mountain roads. The core process includes road surveying and transportation simulation, a proportional arch rib transportation passability test, precise loading and locking of the arch ribs and installation of attitude monitoring devices, transportation along a preset trajectory and point-of-care inspection, and three-level graded acceptance and control. This invention employs a self-righting, low-center-of-gravity counterweight vertical transport scheme, equipped with prefabricated tooling that can adapt to longitudinal slopes and small-radius turns, and features a gravity balance sensor to automatically adjust the arch rib attitude. A dedicated braking system is customized for the transport vehicle. This invention effectively lowers the transportation center of gravity and road traffic requirements, reduces road widening projects, saves costs, protects the environment, solves the problem of transporting tall, long arch ribs on complex mountain roads with steep longitudinal slopes and small-radius turns, improves transportation safety, avoids arch rib deformation and damage, and ensures construction quality.

A multi-action composite anti-stripping performance measuring instrument applicable to multiple scenes belongs to the technical field of road measurement, a closed box is mounted at the bottom of a frame and used for being in contact with a detected road surface to provide a closed environment and a simulation environment, and a knob device is arranged at the upper end of the closed box and used for applying friction force to the detected road surface. The load control device is mounted on the frame through the lifting device, acts on the knob device and applies load to the knob device, and the negative pressure type exfoliated object collecting device is mounted on the frame and is used for collecting exfoliated objects and applying negative pressure to a detected road surface. The device is wide in application scene, can be used for measuring the anti-stripping performance of a rut plate test piece in a laboratory, can also be transported to a designated area on a road in a dragging mode, and can also be connected to a vehicle through a square opening connecting device to move along with the vehicle for multi-point measurement. The controllable horizontal knob stripping effect and the upward suction stripping effect can be sequentially applied to the road surface, and the stripping effect can be more comprehensively applied to the road surface.

The utility model belongs to the field of municipal traffic reconnaissance drilling, and particularly relates to a temporary hole sealing device for municipal road reconnaissance drilling. The device is composed of a top gland, a plugging barrel body, a clamping block, a positioning plate, a screw rod and a conical block. The top gland is a circular steel plate with a center hole and a chamfer, the plugging cylinder body is a cylindrical steel cylinder with a specific through hole and a pin hole, and all the parts are in close fit. By rotating the hexagon nut of the screw and utilizing the synergistic effect of the conical block and the clamping block, the clamping block can be conveniently retracted or stretched out, the device can be effectively fixed or taken out, the operation is efficient, and the hole sealing quality and the road safety can be guaranteed. By means of the device, the traffic safety of the road in the investigation period is remarkably improved, and a reliable scheme is provided for temporary hole sealing of municipal road drilling.

The invention relates to the related technical field of road surveying and mapping, and discloses a geological radar carrying back frame for road surveying and mapping, which comprises a geological detection radar, a foldable driving structure mounted on the geological detection radar, and a back frame structure carried by an operator, through structural innovation and mechanical-electrical integration design, the problems of portability, terrain adaptability and operation comfort of a traditional geological radar are solved, the field operation efficiency and the data acquisition quality are remarkably improved, and the radar is suitable for various complex environments such as road detection and geological exploration.

The utility model discloses a road surface detection device for road surveying and mapping engineering, which belongs to the technical field of road surface detection and comprises a mounting table, a shock absorber, trundles and a touch screen, the touch screen is arranged at one end of the mounting table, a battery is fixedly mounted on the upper surface of the mounting table, and an adjusting mechanism is fixedly mounted on the upper surface of the mounting table. Visual sensors are fixedly installed at the two ends of the adjusting mechanism. Pictures and parameters detected by the visual sensors are displayed through the touch screen, operation of the motor and the visual sensors is controlled, the positions of the two visual sensors can be adjusted under the condition that the device is not moved by arranging the adjusting mechanism, the detection range is expanded, and the working efficiency is improved; and meanwhile, a connecting wire of the visual sensor can be wound, so that the connecting wire is prevented from being wound.

The utility model relates to the technical field of road measurement, and discloses a road engineering road measuring tool which comprises a mounting seat, a motor is fixedly connected to the inner bottom surface of the mounting seat, a lead screw is fixedly connected to the output end of the motor, the lead screw is in threaded connection with a movable seat, and a horizontal assembly is arranged on the top end face of the movable seat. According to the road engineering road measuring tool, the measuring instrument drives the hemispheroid and the movable ring to rotate, so that the hemispheroid and the movable plate rotate around the connecting rod, the measuring instrument is always kept in a horizontal state, the accuracy of a measuring result is further ensured, and even if the device is not on a horizontal plane, the measuring instrument can be automatically adjusted to keep horizontal; the threaded groove is in threaded connection with the spiral thread, so that the movable ring and the hemisphere are fixed in an angle mode, the stability is ensured, the situation that the measuring instrument shakes due to the fact that the device is touched accidentally in the measuring process is avoided, the operation safety and reliability are enhanced, and the measuring work is smoother and more efficient.

The utility model relates to the technical field of road surveying and mapping, and discloses a portable road surveying and mapping device, wherein an extension rod is provided through the upper end of the surveying and mapping pole, a positioning plate is fixedly connected to the upper end of the extension rod, and a limiting mechanism is symmetrically provided on the outer side of the surveying and mapping pole, and the limiting mechanism includes a rotating rod that passes through the outer side of the surveying and mapping pole, one end of the rotating rod is connected to a turntable, and a groove is also provided on the inner side of the surveying and mapping pole, and a limiting plate is provided inside the groove; a stabilizing mechanism is also provided on the outer side of the surveying and mapping pole, and the stabilizing mechanism includes a positioning sleeve that is sleeved on the outer side of the surveying and mapping pole, an adjustment sleeve is fixed on the outer side of the positioning sleeve, and a stabilizing rod is provided through the lower surface of the adjustment sleeve. By providing the extension rod, the height of the surveying and mapping pole can be increased, so that road surveying and mapping work can be better performed, and the work is convenient for carrying and road surveying and mapping.

The invention discloses road surveying and mapping marking equipment, and relates to the technical field of road surveying and mapping, the road surveying and mapping marking equipment comprises a frame, the frame is rotatably provided with a plurality of wheels, the road surveying and mapping marking equipment further comprises a marking mechanism, the marking mechanism is arranged on the frame, the marking mechanism comprises a marking cylinder, and the bottom end of the marking cylinder is provided with a discharging pipe used for marking a road; the first transmission assembly is arranged on the frame, and the discharging pipe is driven by forward rotation of the wheels so that discharging can be conducted through the discharging pipe; and the second transmission assembly is arranged on the frame, and the discharging pipe is driven by reverse rotation of the wheels so that the discharging pipe can stop discharging. According to the marking equipment for road surveying and mapping, starting and stopping of the marking equipment can be controlled through forward and reverse rotation of the wheels on the frame, so that workers can use the marking equipment conveniently, the production cost of the marking equipment is reduced, and then the road surveying and mapping efficiency of surveying and mapping personnel is improved.

The utility model relates to the technical field of road measurement, in particular to a road flatness measuring device which comprises a vehicle body and a measuring structure, the measuring structure is arranged at the lower end of the vehicle body and comprises a supporting rod, a measuring assembly and a feedback assembly, the feedback assembly is arranged at the lower end of the vehicle body, and the measuring assembly comprises measuring wheels, a supporting frame and a base plate. The supporting frame is hinged to the supporting rod, the base plate is hinged to the supporting frame, the measuring wheel is rotatably arranged at one end of the supporting frame and supported on the ground, and the base plate abuts against the feedback assembly. According to the utility model, the baffle plate is slidably arranged in the baffle block, when the measuring device operates, the baffle plate can block broken stones and push the broken stones to move together, so that the situation that the measuring wheel is damaged by the broken stones due to the contact between the measuring assembly and the broken stones is prevented.

Described are systems and techniques for road surveying. Information indicative of a sequence of target road sections each comprising one or more road segments can be used to configure a vehicle to perform a road survey by traveling each target road section of the sequence. Data acquisition can be started from onboard sensors of the vehicle based on detecting a first trigger event where a current position of the vehicle is within a configured threshold distance from a first target road section of the sequence. Respective road survey data can be obtained for each road segment in each target road section of the sequence, and can comprise a subset of acquired data obtained from the onboard sensors between a corresponding start and end point automatically determined for the respective road segment based on detecting the occurrence of trigger events corresponding to the current vehicle position and / or heading. Unlocking insights from geodata, the present disclosure further relates to improvements in sustainability and environmental developments: together we create a safe and liveable world.

The utility model discloses a road design measuring and positioning structure which comprises a bottom plate, the two sides of the bottom plate are connected with the ground through two fixing screws, a supporting block is fixedly assembled at the upper end of a screw rod, a control point is fixedly assembled at the upper end of the supporting block, guard plates are arranged in a C shape, the control point is a datum point for road measuring and positioning, and the guard plates are connected with the screw rod. In road design measurement, control points are divided into plane control points and elevation control points, and the plane control points are used for determining the position of a road on the plane, such as the trend of the road, the position of a curve and the like; the elevation control points are used for determining the longitudinal section of the road, namely the slope of the road and the elevation of each point, and in the construction process, due to the activities of mechanical equipment operation, earth excavation, filling and the like on the construction site, the temporary control points can be damaged or lost, so that the control point structure needs to be used for guaranteeing the timeliness of the control points, and the construction cost is reduced. And the control points are prevented from being damaged and lost to influence the measurement positioning effect.

This invention discloses a roadbed survey unit, detection system, and analysis method for addressing road hazards. The unit includes a survey box with a settlement detection mechanism inside for detecting roadbed settlement depth. A horizontal adjustment unit is located diagonally at the bottom of the survey box. The settlement detection mechanism includes a detection plate, the top of which is driven downwards by a pneumatic component. This invention relates to the field of road surveying technology. This roadbed survey unit, detection system, and analysis method for addressing road hazards, by incorporating a settlement detection mechanism, utilizes a pneumatic component to move the detection plate vertically downwards. The moving plate moves synchronously through the pulling of a traction rope and the cooperation of a support component. This not only enables subsequent roadbed settlement detection but also improves the accuracy and efficiency of the detection process by cleaning the test surface with a sweeping plate before settlement detection.

The invention relates to the technical field of road measurement, in particular to a portable accurate measuring instrument for road construction, which comprises a box body and the like, a cylinder is fixedly connected to the dead center in the box body, a lifting plate is connected in the cylinder in an up-down sliding manner, a rotating plate is rotatably connected in the lifting plate, and a measuring instrument for measurement is mounted on the rotating plate. The lifting plate is driven by a lifting mechanism to slide up and down, a shielding plate used for shielding the measuring instrument from sun and rain is arranged at the top of the box body, and the shielding plate is connected with the lifting plate through a connecting plate. The device is provided with the shielding plate and other parts, the shielding plate is used for shielding the measuring instrument, a sunshade effect is achieved in the burning sun, a rain shielding effect is achieved in rainy days, and the measuring instrument is prevented from being damaged due to the influence of external weather.

This invention relates to the field of image data processing technology, specifically to a digital highway surveying method and system based on machine vision. The method includes: acquiring multimodal data collected by a vehicle-mounted mobile scanning system; obtaining a hazard type matching deviation value under the current sampling based on the multimodal data; obtaining the feature vector of the multimodal data in the neural network under the current sampling, and determining the identifiable impact performance value under the current sampling based on the hazard type matching deviation value; obtaining random coefficients under the current sampling based on the identifiable impact performance value; determining the hazard type saliency under the current sampling based on the identifiable impact performance value and the random coefficients; dynamically adjusting the attention weights of the neural network using the hazard type saliency under the current sampling, and outputting the highway hazard identification result. This invention can improve the accuracy of edge feature extraction for multiple types of highway hazards.

The utility model relates to the technical field of highway engineering, municipal engineering, hydraulic engineering and the like, in particular to a measuring device used for highway investigation, which comprises a measuring instrument and a triangular support, the triangular support comprises a triangular panel and triangular support legs, the triangular support is connected with a support structure, and the triangular panel is connected with the triangular support. The supporting structure comprises a supporting rod and a middle shaft rod, the top end of the middle shaft rod is connected with the triangular panel, a blocking ring is arranged at the tail end of the outer surface of the middle shaft rod, the middle shaft rod is sleeved with an adjusting ring, a locking assembly is arranged on the adjusting ring, and anti-skid sleeves convenient to mount and dismount are arranged on the triangular supporting legs. A stable supporting structure is provided, the situation that the whole triangular support is unstable due to the fact that one supporting leg is unstable is prevented, the anti-skid sleeve arranged on the measuring device can be used under the geological condition that a measuring site is three kinds of soil or above during road surveying, the anti-skid capacity of the measuring device can be improved, and the measuring device is convenient to use. And the device is more stable during measurement.

The present application relates to an urban road surveying and marking vehicle for heating solvent-based road marking paint, and relates to the field of urban road surveying and marking technology. It includes a surveying and mapping bracket, on which a raw material barrel for heating and stirring the heated solvent-based road marking paint is provided, a spraying port is provided at the bottom of the raw material barrel, an adjusting device is provided below the spraying port, and a driving motor is provided on the surveying and mapping bracket, the output end of the driving motor is connected to the adjusting device, and the driving motor drives the adjusting device to move below the spraying port. The urban road surveying and marking vehicle for heating solvent-based road marking paint in the present application continuously discharges material from the spraying port, so that the heated solvent-based road marking paint is not easy to condense at the discharge port, reducing the possibility of affecting the quality of the sprayed dotted lines.

1. The name of this design product: road surveying instrument. 2. Purpose of this design product: This design product is used for road surveying and mapping. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the design points: Stereoscopic drawing 1.

The utility model belongs to the technical field of municipal road measuring devices, and particularly relates to a municipal road measuring device which comprises a movable frame. An auxiliary measuring device is mounted on the moving frame; a lifting mechanism is mounted at the top of the fixed plate; the bottom end, extending out of the outside, of the lifting rod is fixedly connected with a lifting plate; a telescopic mechanism is installed on the side face, close to the movable frame, of the lifting plate. A rotating cavity is formed in the vertical surface, close to the lifting plate, of the positioning plate; a rotating roller is rotationally mounted in the rotating cavity; convex clamping grooves are symmetrically formed in the two sides of the top end face of the lifting plate. The end part of the convex clamping block is fixedly connected with a connecting frame; a rotating shaft is rotationally mounted between an upper plate body and a lower plate body of the connecting frame; a cleaning brush is mounted outside the rotating shaft; under the action of the auxiliary measuring device, the movement track of the measuring device is prevented from deviating, and the measuring error is reduced.

The invention belongs to the technical field of road surveying and mapping, and particularly relates to a self-adaptive surveying and mapping device for a multi-terrain road, which comprises a base frame, a transverse adjusting module, a surveying and mapping module, a main obstacle crossing module, an auxiliary obstacle crossing module and a monitoring module. The two transverse adjusting modules are arranged on the two sides of the short edge of the base frame in a relatively sliding mode, a first telescopic rod is arranged between the two transverse adjusting modules in a crossing mode, and through the first telescopic rod and the surveying and mapping module capable of sliding in the axial direction of the first telescopic rod, the surveying and mapping effect is achieved when the surveying and mapping module faces obstacles such as gullies. The transverse position of the surveying and mapping module is freely adjusted to automatically avoid obstacles such as gullies, the effect of alternately supporting the base frame when facing a protruding obstacle is achieved through cooperation of the main obstacle crossing module and the auxiliary obstacle crossing module, and therefore the surveying and mapping device can directly cross the protruding obstacle, and the effects of crossing and obstacle avoidance are achieved; manual intervention is not needed, and various complex road surfaces can be mapped.

The utility model discloses a surveying and mapping data recording board which comprises a board body, the board body comprises a front board and a rear board, a clamping groove is formed in the inner wall of the front board, a movable hinge is installed between the upper end of the front board and the upper end of the rear board, a clamping piece is arranged at the position close to the lower end of the front board and the lower end of the rear board, and the clamping piece comprises a connecting rod and a blocking rod. The mounting assembly comprises a mounting rod, a fixing block, inserting plates and fixing screws, the mounting rod is inserted into the bottom ends of the front plate and the rear plate, the fixing block is arranged at the bottom of the mounting rod, the inserting plates are fixed to the two sides of the fixing block, and the fixing screws are arranged between the mounting rod and the front plate and between the mounting rod and the rear plate. According to the utility model, two surveying and mapping data recording modes of handwriting and electronic are set, selection is carried out according to surveying and mapping environments, the detachable ground anchor is arranged at the bottom, and the recording plate is inserted into the outdoor underground by utilizing the insertion plate to fix the position of the recording plate, or the recording plate is obliquely used by utilizing the straps, so that the flexibility is high; and road surveying and mapping data can be conveniently recorded.

The utility model provides a kind of measuring device for highway reconnaissance design belongs to road surveying equipment technical field.The utility model embodiment provides the measuring device for highway reconnaissance design, including staff component, drill, direct current motor, power component and support and adjusting mechanism, by rotating and setting drill in the end of staff component, direct current motor and the power component of power supply to direct current motor are built-in in the inside of staff component, when needing to insert staff component into the soil of ground survey point, only need to insert drill into the soil of ground survey point, then start direct current motor, make drill automatic drilling into the soil of ground survey point by direct current motor drive drill rotation, simultaneously, drill drives staff component to insert into the preset position in ground soil, so as not to need to insert staff component into the ground survey point by measurement personnel manually, save work time and improve measurement efficiency, can greatly reduce the labor intensity of measurement personnel, not easy to cause measurement personnel to appear fatigue.

The utility model discloses a road measuring device for highway engineering, which comprises a mounting plate, a counter is fixedly mounted on the bottom end surface of the mounting plate, a hinge piece I is fixedly mounted on the bottom end surface of the mounting plate, a mounting frame is fixedly mounted on the side surface of the hinge piece I, and a mounting block is fixedly mounted on the inner wall of the mounting frame. A second hinge piece is fixedly mounted on the end face of the mounting block. During distance measurement, the rotating wheel is in contact with the ground, the rotating wheel fluctuates up and down to drive the mounting frame to fluctuate with the hinge piece I as the circle center when encountering a bumpy road surface, and at the moment, the hinge piece II pushes the damping rod to drive the hinge piece III to deflect to adapt to fluctuation of the rotating wheel, so that the rotating wheel is in contact with the ground all the time; when the accurate wheel rotates, the number of turns of rotation of the rotating wheel is recorded through the counting point and the counter, distance measurement operation is completed, the situation that the distance measurement rotating wheel does not rotate or idles due to the uneven road surface, and then the measurement accuracy is affected can be avoided, and the measurement accuracy of the device is improved.

The invention belongs to the technical field of road surveying and mapping, and particularly relates to a roadbed and pavement compactness detection device which comprises a mounting frame, a comparison test system, an equivalent filling device and a storage battery. According to the device, the equivalent filling device is arranged, standard sand and soil are subjected to constant-volume blanking through the quantitative cabin, the volume error is reduced, the comparison testing system is arranged, the weight difference between the standard sand and the soil is measured through the lever principle, and therefore the compaction degree is obtained, and during multiple times of measurement, the measurement accuracy is greatly improved. The parameters can be rapidly changed only by discharging the soil material (or the standard sand) in the comparison cabin and filling the soil material (or the standard sand) in the equivalent filling device into the comparison cabin below, the operation is simple, and the problems of tedious operation steps and large error of the existing detection device are solved.

The invention relates to the technical field of pavement noise attenuation performance testing, and discloses a pavement noise attenuation performance testing system and method, and the method comprises the steps: executing a transverse and longitudinal sound pressure distribution strategy, respectively calculating the transverse and longitudinal sound pressure distribution of an under-bridge channel, and optimizing the number of measurement points of an on-bridge road and an under-bridge road; executing a period segmentation weighting strategy, obtaining a traffic signal period of a road under the bridge, and optimizing sound pressure time characteristics under the bridge; executing a noise transfer matrix estimation strategy, calculating a noise transfer matrix from the under-bridge road to the on-bridge road according to the sound pressure time characteristics, and estimating under-bridge noise received by the on-bridge road; executing an on-bridge noise correction strategy, calculating an on-bridge real sound pressure spectrum according to the on-bridge sound pressure time characteristics and the under-bridge noise, and weighting the frequency band of the real sound pressure spectrum; and executing an on-bridge noise attenuation fitting strategy, calculating the equivalent sound pressure level of each measurement point of the on-bridge road, and linearly fitting on-bridge noise attenuation in combination with the reference position, thereby improving the accuracy of the bridge noise test.