Road comprehensive performance detection vehicle based on multi-dimensional data acquisition

Abstract

The application discloses a road comprehensive performance detection vehicle based on multi-dimensional data collection and relates to the field of road detection equipment, which comprises a moving plate, an industrial computer, a ground penetrating radar, a laser profile gauge, a falling weight deflectometer, a GPS locator, a fixing frame and a road surface damage detection camera. The application can comprehensively evaluate various performance indexes of the road, including the road surface thickness, the road surface void condition, the road surface flatness, the structure depth, the rut condition, the road surface falling weight deflectometer condition and the road surface apparent damage condition, and through comprehensive road detection, the overall condition of the road can be accurately known. Through the setting of the GPS locator, the position of the problem road section can be accurately recorded, and the problem road section can be conveniently repaired. Through the piston movement, the application can blow air to the lens of the road surface damage detection camera, so that the dust on the lens can be removed, the definition of the detection equipment can be ensured, and the detection accuracy and reliability can be improved.

Description

Technical Field

[0001] This invention relates to the field of road testing equipment, and more particularly to a road comprehensive performance testing vehicle based on multi-dimensional data acquisition. Background Technology

[0002] With the rapid development of urban transportation infrastructure, road maintenance and inspection have become crucial for ensuring traffic safety and extending road lifespan. Traditional road inspection methods typically rely on manual inspections and single inspection devices, which are not only inefficient but also fail to comprehensively assess the overall performance of roads. In recent years, with technological advancements, multifunctional and automated road performance testing vehicles have gradually become the mainstream.

[0003] Road performance testing vehicles typically integrate multiple sensors and testing equipment to achieve a comprehensive assessment of various road performance aspects. These testing equipment includes, but is not limited to, ground-penetrating radar, laser profilometers, and pavement damage detection cameras, which can detect multiple indicators such as pavement thickness, voids, smoothness, texture depth, and rutting conditions. However, existing road performance testing vehicles still have some technical shortcomings.

[0004] Existing testing vehicles have shortcomings in cleaning the lenses of their testing equipment. Due to the complex road testing environment, the lenses of the testing equipment are easily affected by dust, which leads to a decline in data acquisition quality and consequently affects data accuracy. Summary of the Invention

[0005] The purpose of this invention is to provide a road comprehensive performance testing vehicle based on multi-dimensional data acquisition, which solves the technical problem in the prior art where the lens of the testing equipment is easily affected by dust, resulting in a decline in data acquisition quality and thus affecting data accuracy.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A road comprehensive performance testing vehicle based on multi-dimensional data acquisition includes: a moving plate; an industrial control computer mounted on the top surface of the moving plate; a ground-penetrating radar mounted on the bottom surface of the moving plate for detecting road thickness and road void conditions, and connected to the industrial control computer; a laser profiler mounted on the bottom surface of the moving plate for detecting road surface smoothness, texture depth, and rutting conditions, and connected to the industrial control computer; a falling weight deflectometer mounted through one side of the moving plate for detecting the falling weight deflection of the road surface, and connected to the industrial control computer; a GPS locator mounted on the top surface of the moving plate, and connected to the industrial control computer; a fixed frame mounted on the top surface of the moving plate; a road damage detection camera mounted on the fixed frame for detecting the apparent damage of the road surface, and connected to the industrial control computer; and a cleaning air supply mechanism. When the moving plate moves, the cleaning air supply mechanism cleans the lens of the road damage detection camera and supplies air to the industrial control computer.

[0008] Preferably, the road comprehensive performance testing vehicle based on multi-dimensional data acquisition further includes: two axles, both rotatably connected to the moving plate; four moving wheels, respectively installed at both ends of the two axles; multiple hanging rings, installed on the side of the moving plate away from the falling weight deflectometer, for connection with the traction vehicle; and a first bevel gear, fixedly sleeved on the axle close to the falling weight deflectometer.

[0009] Preferably, the cleaning air supply mechanism includes: a cleaning component for cleaning the lens of the road damage detection camera; an air supply component for supplying air into the industrial control computer; and a drive component for driving the cleaning component and the air supply component to operate.

[0010] Preferably, the cleaning assembly includes: two piston cylinders, both fixedly connected to the fixing frame, with piston plates slidably connected inside the piston cylinders, and an air extraction pipe and an air outlet pipe installed on the top of the piston cylinders; two piston rods, respectively fixedly connected to the piston plates inside the two piston cylinders; a hollow box, fixedly connected to and communicating with the two air outlet pipes; an air outlet slot, opened on one side of the hollow box, facing the lens of the road damage detection camera; and several air inlets, opened on the two air extraction pipes; wherein, when the piston rods move up and down reciprocally, the piston cylinders continuously deliver outside air to the hollow box, and the air inside the hollow box is quickly discharged through the air outlet slot.

[0011] Preferably, the drive assembly includes: a reciprocating screw rotatably connected to the moving plate and the fixed frame; a second bevel gear mounted on the lower end of the reciprocating screw and meshing with the first bevel gear; a fixed plate slidably connected to the fixed frame and fixedly connected to the lower ends of the two piston rods; and a moving cylinder passing through the fixed plate and fixedly connected to the fixed plate, and sleeved on the reciprocating screw; wherein, when the reciprocating screw rotates, the moving cylinder reciprocates along the reciprocating screw, and the fixed plate moves with the moving cylinder.

[0012] Preferably, the drive assembly further includes: two rings, both penetrating the fixing plate and fixedly connected to the fixing plate; and a cleaning wipe, which is annular, installed on the inner wall of the two rings respectively, and sleeved on the two suction pipes for cleaning the suction pipes.

[0013] Preferably, the gas delivery assembly includes: a fixed cylinder, installed on the top surface of the fixed frame; a filter plate, installed on the bottom surface of the fixed cylinder, the reciprocating screw passing through the filter plate and rotatably connected to the filter plate; a gas delivery pipe, one end of which is connected to the fixed cylinder and the other end of which is connected to the industrial control computer; and a blower fan blade, located inside the fixed cylinder and installed on the reciprocating screw.

[0014] Preferably, the road comprehensive performance testing vehicle based on multi-dimensional data acquisition also includes: a battery installed on the top surface of the moving plate, used to power the industrial control computer, ground penetrating radar, laser profiler, falling weight deflectometer, GPS locator and road damage detection camera.

[0015] Preferably, the road comprehensive performance testing vehicle based on multi-dimensional data acquisition also includes a road comprehensive performance testing system, which includes: a data acquisition module for acquiring road comprehensive performance data, including falling weight deflection, pavement voids, pavement smoothness, pavement surface damage, rutting, texture depth, and pavement thickness; a data processing module for receiving the comprehensive performance data from the data acquisition module, generating a comprehensive performance coefficient based on the comprehensive performance data, and then determining the corresponding testing vehicle movement speed level based on the comprehensive performance coefficient; and a reminder module for reminding the driver to adjust the movement speed of the towing vehicle according to the corresponding testing vehicle movement speed level, thereby adjusting the movement speed of the testing vehicle.

[0016] Preferably, the speed level of the detection vehicle is generated as follows: the speed level of the detection vehicle includes a first-level speed level, a second-level speed level, and a third-level speed level, wherein the first-level speed level, the second-level speed level, and the third-level speed level decrease in descending order; the preset threshold range of the comprehensive performance coefficient is P1 and P2, wherein P1 < P2; if P1 > the comprehensive performance coefficient, the data processing module generates a third-level speed level; if P1 ≤ the comprehensive performance coefficient ≤ P2, the data processing module generates a second-level speed level; if the comprehensive performance coefficient > P2, the data processing module generates a first-level speed level.

[0017] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0018] 1. The road comprehensive performance testing vehicle based on multi-dimensional data acquisition in this invention, equipped with an industrial control computer, ground-penetrating radar, laser profiler, falling weight deflectometer, and road damage detection camera, can comprehensively evaluate various performance indicators of the road, including road thickness, road voids, road smoothness, texture depth, rutting condition, falling weight deflection condition, and road surface damage condition. Through comprehensive road inspection, it is beneficial to accurately understand the overall condition of the road; and by setting up a GPS locator, it can accurately record the location of problem road sections, which is convenient for repairing problem road sections.

[0019] 2. The road comprehensive performance testing vehicle based on multi-dimensional data acquisition in this invention is equipped with a cleaning air supply mechanism. Through piston movement, air is blown towards the lens of the road damage detection camera, which can remove dust from the lens and ensure the clarity of the detection equipment, thereby improving the accuracy and reliability of the detection. In addition, the air supply component delivers air to the industrial control computer, which can accelerate the air flow inside the industrial control computer, help reduce the internal temperature of the industrial control computer, and extend the service life of the industrial control computer.

[0020] 3. The clean air delivery mechanism in this invention, by setting up a clean air delivery mechanism drive component, will drive the drive component to run when the moving plate and moving wheels move, eliminating the need for a separate drive device, reducing energy consumption, and also reducing the manufacturing and operating costs of the inspection vehicle; and when the drive component is running, it will drive the movable rod to move back and forth, thereby blowing air towards the lens of the road damage detection camera through the piston cylinder hollow box and the air outlet slot, while also driving the cleaning wipe to clean the surface of the air extraction pipe, and also driving the fan blade to rotate, so that the air is delivered to the industrial control computer through the hollow cylinder and the air delivery pipe. When the drive component is running, it can drive multiple components to move synchronously at the same time, improving the energy utilization rate.

[0021] 4. The road comprehensive performance testing vehicle based on multi-dimensional data acquisition in this invention can dynamically adjust the vehicle's moving speed by setting up a road comprehensive performance testing system, so that the vehicle can adapt to the testing requirements of different road sections and improve the pertinence and accuracy of the testing. Attached Figure Description

[0022] Figure 1 This invention provides a three-dimensional road comprehensive performance testing vehicle based on multi-dimensional data acquisition. Figure 1 ;

[0023] Figure 2 This invention provides a three-dimensional road comprehensive performance testing vehicle based on multi-dimensional data acquisition. Figure 2 ;

[0024] Figure 3 This invention provides a three-dimensional road comprehensive performance testing vehicle based on multi-dimensional data acquisition. Figure 3 ;

[0025] Figure 4 This is a schematic diagram of the assembly structure of the fixing frame, road damage detection camera and chute in this invention;

[0026] Figure 5 This is a perspective view of the clean gas delivery mechanism in this invention;

[0027] Figure 6 This is an exploded view of the clean gas delivery mechanism in this invention;

[0028] Figure 7 This is a schematic diagram showing the connection between the road comprehensive performance testing vehicle based on multi-dimensional data acquisition and the traction vehicle in this invention;

[0029] Reference numerals: 100, Moving plate; 101, Shaft; 102, Moving wheel; 103, Hanging ring; 104, First bevel gear; 110, Industrial control computer; 120, Ground penetrating radar; 130, Laser profiler; 140, Falling weight deflectometer; 150, GPS locator; 160, Battery; 170, Fixing frame; 171, Road damage detection camera; 172, Slide chute; 200, Cleaning air delivery mechanism; 210, Cleaning component; 211, Piston cylinder; 2111 2111. Suction pipe; 2112. Exhaust pipe; 212. Piston rod; 213. Hollow box; 214. Air outlet slot; 215. Air inlet; 220. Drive assembly; 221. Reciprocating screw; 222. Second bevel gear; 223. Fixing plate; 2231. Slider; 224. Moving cylinder; 225. Ring; 226. Cleaning wipe; 230. Air supply assembly; 231. Fixing cylinder; 232. Filter plate; 233. Air supply pipe; 234. Fan blade; 235. Mounting bracket. Detailed Implementation

[0030] To make the technical means, creative features, achieved objectives, and effects of this invention easier to understand, the invention is further described below with reference to specific embodiments and accompanying drawings. However, the following embodiments are merely preferred embodiments of this invention and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described herein without creative effort are all within the protection scope of this invention.

[0031] Specific embodiments of the present invention are described below with reference to the accompanying drawings.

[0032] Example 1

[0033] like Figures 1-4 and Figure 7 As shown, the road comprehensive performance testing vehicle based on multi-dimensional data acquisition includes a mobile board 100, an industrial control computer 110, a ground penetrating radar 120, a laser profiler 130, a falling weight deflectometer 140, a GPS locator 150, a fixed frame 170, and a road damage detection camera 171.

[0034] The movable plate 100 is L-shaped. Multiple hanging rings 103 are installed on the vertical part of the movable plate 100. The hanging rings 103 are used to connect with the towing vehicle, which is a truck or a semi-trailer tractor, etc. Two sets of bearing seats are installed on the bottom surface of the movable plate 100. A shaft 101 is rotatably installed on each set of bearing seats. Movable wheels 102 are installed at both ends of the two shafts 101. A first bevel gear 104 is fixedly sleeved on the shaft 101 away from the hanging rings 103.

[0035] An industrial control computer 110 is mounted on the top surface of the moving plate 100; a ground-penetrating radar 120 is mounted on the bottom surface of the moving plate 100, used to detect the road surface thickness and void condition, and connected to the industrial control computer 110 via signal transmission. A laser profiler 130 is mounted on the bottom surface of the moving plate 100, used to detect road surface smoothness, texture depth, and rutting condition, and connected to the industrial control computer 110 via signal transmission. A falling weight deflectometer 140 is mounted through the moving plate 100 on one side, used to detect the falling weight deflection condition of the road surface, and connected to the industrial control computer 110 via signal transmission. A GPS locator 150 is mounted on the top surface of the moving plate 100, and connected to the industrial control computer 110 via signal transmission. The fixed frame 170 is installed on the top surface of the movable plate 100; the road damage detection camera 171 is installed on the fixed frame 170. The road damage detection camera 171 is used to detect the surface damage of the road surface. The road damage detection camera 171 is connected to the industrial control computer 110 via signal.

[0036] A battery 160 is also installed on the top surface of the mobile plate 100. The battery 160 is used to power the industrial control computer 110, ground penetrating radar 120, laser profiler 130, falling weight deflectometer 140, GPS locator 150 and road damage detection camera 171.

[0037] Specifically, by connecting the hook 103 to the towing vehicle, the moving plate 100 will move when the towing vehicle moves; the ground penetrating radar 120 can detect the thickness of the road surface and the condition of road surface voids; the laser profiler 130 can detect the smoothness of the road surface, the depth of the structure and the condition of ruts; the hammer deflectometer can detect the falling weight deflection of the road surface; and the road damage detection camera 171 can detect the surface damage of the road surface.

[0038] like Figure 5 As shown, the road comprehensive performance testing vehicle based on multi-dimensional data acquisition also includes a clean air delivery mechanism 200. When the moving plate 100 moves, the clean air delivery mechanism 200 starts to operate, and the operating clean air delivery mechanism 200 cleans the lens of the road damage detection camera 171 and delivers air to the industrial control computer 110.

[0039] The cleaning air delivery mechanism 200 includes a cleaning component 210, an air delivery component 230, and a drive component 220. The cleaning component 210 is used to clean the lens of the road damage detection camera 171; the air delivery component 230 is used to deliver air into the industrial control computer 110; and the drive component 220 is used to drive the cleaning component 210 and the air delivery component 230.

[0040] like Figure 6 As shown, the cleaning assembly 210 includes two piston cylinders 211, two piston rods 212, a hollow box 213, an air outlet slot 214, and several air inlets 215. A connecting block is mounted on the top of each piston cylinder 211, connecting the piston cylinder 211 to the fixing bracket 170. A piston plate is slidably connected inside the piston cylinder 211. An air extraction pipe 2111 and an air outlet pipe 2112 are mounted on the top of the piston cylinder 211. The bottom of the air extraction pipe 2111 is solid. Both the air extraction pipe 2111 and the air outlet pipe 2112 are equipped with one-way valves, ensuring that air inside the piston cylinder 211 can only flow unidirectionally to the air outlet pipe 2112, and that outside air can only enter the piston cylinder unidirectionally through the air extraction pipe 2111. Inside cylinder 211, two piston rods 212 are fixedly connected to piston plates inside the two piston cylinders 211 respectively; hollow box 213 is fixedly connected to and communicates with two air outlet pipes 2112; air outlet slot 214 is opened on one side of hollow box 213, and air outlet slot 214 faces the lens of road damage detection camera 171; several air inlets 215 are opened on two air extraction pipes 2111. By setting several air inlets 215, the air entering the air extraction pipes 2111 can be filtered, and debris can be blocked outside the air extraction pipes 2111.

[0041] Specifically, when the piston rod 212 moves up and down, outside air enters the piston cylinder 211 through the air inlet 215 on the air extraction pipe 2111. The air in the piston cylinder 211 enters the hollow box 213 through the air outlet 2112. The air in the hollow box 213 is quickly discharged through the air outlet 214. The air discharged through the air outlet 214 blows away the dust adhering to the lens of the road damage detection camera 171, thus preventing dust from sticking to the lens.

[0042] like Figure 6 As shown, the drive assembly 220 includes a reciprocating screw 221, a second bevel gear 222, a fixed plate 223, and a moving cylinder 224. The reciprocating screw 221 is rotatably connected to the moving plate 100 and the fixed frame 170; the second bevel gear 222 is installed at the lower end of the reciprocating screw 221 and meshes with the first bevel gear 104; the fixed frame 170 has a sliding groove 172, and a slider 2231 is fixedly connected to the fixed plate 223. The fixed plate 223 is slidably connected to the fixed frame 170 through the slider 2231 and the sliding groove 172. The fixed plate 223 is fixedly connected to the lower ends of the two piston rods 212; the moving cylinder 224 passes through the fixed plate 223 and is fixedly connected to the fixed plate 223. The moving cylinder 224 is sleeved on the reciprocating screw 221, and a protrusion matching the groove of the reciprocating screw 221 is provided inside the moving cylinder 224.

[0043] Specifically, when the movable plate 100 moves, it drives the shaft 101 and the first bevel gear 104 to move, which in turn meshes and drives the second bevel gear 222 to rotate, which in turn drives the reciprocating screw 221 to rotate. When the reciprocating screw 221 rotates, the movable cylinder 224 moves up and down along the reciprocating screw 221, which in turn drives the fixed plate 223 to move up and down, which in turn drives the two piston rods 212 to move up and down.

[0044] like Figure 6 As shown, the drive assembly 220 also includes two rings 225 and a cleaning wipe 226. Both rings 225 pass through the fixing plate 223 and are fixedly connected to the fixing plate 223; the cleaning wipe 226 is annular and is installed on the inner wall of the two rings 225 respectively. The cleaning wipe 226 is sleeved on the two suction pipes 2111 respectively. The cleaning wipe 226 is used to clean the suction pipes 2111 and prevent debris from clogging the air inlet 215 on the suction pipes 2111.

[0045] Specifically, when the fixed plate 223 moves up and down repeatedly, it will drive the two rings 225 to move, which in turn will drive the cleaning wipe 226 to move and clean the suction pipe 2111, thereby preventing debris from clogging the air inlet 215 on the suction pipe 2111 and ensuring that air can smoothly enter the suction pipe 2111 and the piston cylinder 211.

[0046] like Figure 6 As shown, the air delivery assembly 230 includes a fixed cylinder 231, a filter plate 232, an air delivery pipe 233, and a blower blade 234. A mounting bracket 235 is fixedly fitted onto the fixed cylinder 231, and the mounting bracket 235 is connected to the top surface of a fixed frame 170. The filter plate 232 is installed on the bottom surface of the fixed cylinder 231, and a reciprocating screw 221 passes through the filter plate 232 and is rotatably connected to it. One end of the air delivery pipe 233 is connected to the fixed cylinder 231, and the other end is connected to an industrial computer 110. A valve (not shown) is also installed on the air delivery pipe 233. When the valve is closed, air inside the fixed cylinder 231 cannot enter the industrial computer 110 through the air delivery pipe 233. The blower blade 234 is located inside the fixed cylinder 231 and is mounted on the reciprocating screw 221.

[0047] Specifically, when the reciprocating screw 221 rotates, it drives the fan blades 234 to rotate, thereby delivering outside air into the fixed cylinder 231, and then allowing the outside air to enter the industrial computer 110 through the delivery pipe, thereby accelerating the airflow inside the industrial computer 110, which facilitates the cooling of the interior of the industrial computer 110.

[0048] Working principle: In practical use, by connecting the hook 103 to the towing vehicle, when the towing vehicle moves, it will drive the moving plate 100 and the moving wheel 102 to move. Then, by activating the ground penetrating radar 120, laser profiler 130, GPS locator 150 and road damage detection camera 171, the ground penetrating radar 120 can detect the thickness and void condition of the road surface, the laser profiler 130 can detect the smoothness, texture depth and rutting condition of the road surface, and the road damage detection camera 171 can detect the surface damage condition of the road surface.

[0049] The ground-penetrating radar 120 sends the road surface thickness information and road surface void status information to the industrial control computer 110; the laser profiler 130 sends the road surface smoothness status information, structure depth status information and rutting status information to the industrial control computer 110; and the road surface damage detection camera 171 sends the road surface damage status information to the industrial control computer 110.

[0050] When the towing vehicle stops after moving a certain distance, the falling weight deflectometer 140 is activated to detect the falling weight deflection of the road surface. The falling weight deflectometer 140 sends the falling weight deflection information to the industrial control computer 110. The industrial control computer 110 evaluates the overall performance of the road section based on the road thickness information, road void information, road smoothness information, texture depth information, rutting information, road surface damage information, and falling weight deflection information.

[0051] If any abnormalities are found in the road surface thickness, road surface void status, road surface smoothness, structural depth, rutting status, road surface damage status, or falling weight deflection status, the industrial control computer 110 will mark the location using the GPS locator 150 for later maintenance.

[0052] When the traction vehicle moves the moving plate 100 and the moving wheel 102, it will drive the shaft 101 to rotate, which in turn drives the first bevel gear 104 to rotate. The rotating first bevel gear 104 will mesh and drive the second bevel gear 222 to rotate, which in turn drives the reciprocating screw 221 to rotate. When the reciprocating screw 221 rotates, the moving cylinder 224 will move up and down along the reciprocating screw 221, which will drive the fixed plate 223 to move up and down, which will drive the two piston rods 212 to move up and down.

[0053] When the piston rod 212 moves up and down repeatedly, it draws outside air into the piston cylinder 211 through the air inlet 215 on the air extraction pipe 2111. The air in the piston cylinder 211 then enters the hollow box 213 through the air outlet 2112. The air in the hollow box 213 is then quickly discharged through the air outlet 214. The air discharged through the air outlet 214 blows away the dust adhering to the lens of the road damage detection camera 171, thus preventing dust from sticking to the lens.

[0054] Furthermore, when the fixed plate 223 moves up and down repeatedly, it will drive the two rings 225 to move, which in turn will drive the cleaning wipe 226 to move and clean the suction pipe 2111, thereby preventing debris from clogging the air inlet 215 on the suction pipe 2111 and ensuring that air can smoothly enter the suction pipe 2111 and the piston cylinder 211.

[0055] Furthermore, when the reciprocating screw 221 rotates, it will drive the fan blades 234 to rotate, thereby delivering outside air into the fixed cylinder 231, and then allowing outside air to enter the industrial computer 110 through the delivery pipe, thereby accelerating the airflow inside the industrial computer 110, which facilitates the cooling of the inside of the industrial computer 110 and avoids affecting its service life due to excessive internal temperature.

[0056] Example 2

[0057] like Figures 1-3 and Figure 7 While all other parts are the same as in Embodiment 1, the difference between this embodiment and Embodiment 1 is that the road comprehensive performance testing vehicle based on multi-dimensional data acquisition also includes a road comprehensive performance testing system, which includes a data acquisition module, a data processing module, and an alert module.

[0058] The data acquisition module is used to collect comprehensive road performance data, which includes falling weight deflection, pavement voids, pavement smoothness, pavement surface damage, rutting, texture depth, and pavement thickness. The data acquisition module includes a ground-penetrating radar 120, a laser profiler 130, a falling weight deflectometer 140, a GPS locator 150, a mounting frame 170, and a pavement damage detection camera 171.

[0059] The data processing module receives comprehensive performance data from the data acquisition module, generates comprehensive performance coefficients based on the comprehensive performance data, and then determines and generates the corresponding moving speed level of the detection vehicle based on the comprehensive performance coefficients. The data processing module is an industrial control computer 110.

[0060] The reminder module is used to remind the driver to adjust the speed of the towing vehicle based on the corresponding speed level of the inspection vehicle, thereby adjusting the speed of the inspection vehicle.

[0061] The working steps of the road comprehensive performance testing system are as follows:

[0062] Step 1: Set the threshold range of the comprehensive performance coefficient to P1 and P2, where P1 < P2;

[0063] Step 2: Set the weighting coefficient w for each parameter based on the condition of the road to be detected. i ;

[0064] Step 3: Divide the road to be tested into several segments at equal intervals, and mark the smaller road segments as L;

[0065] Step 4: Collect road performance data such as drop weight deflection, road voids, road smoothness, road surface damage, rutting, texture depth, and road thickness through the data acquisition module, and send the collected comprehensive road performance data to the data processing module.

[0066] Step 5: The data processing module generates a comprehensive performance coefficient based on the comprehensive performance data and labels the comprehensive performance coefficient as P;

[0067] Step Six: The data processing module compares P with the preset comprehensive performance coefficient threshold ranges P1 and P2.

[0068] If P1 > P, it indicates that the short road segment L is severely damaged, and the data processing module generates a three-level movement speed rating.

[0069] If P1≤P≤P2, it indicates that the short road segment L has minor damage, and the data processing module generates a level 2 movement speed rating.

[0070] If P > P2, it indicates that the overall performance of the short road segment L is good, all monitoring indicators are in a better state, and the data processing module generates a first-level moving speed level.

[0071] The vehicle speed levels include Level 1, Level 2, and Level 3, with Level 1, Level 2, and Level 3 decreasing in speed sequentially. Specifically, each vehicle speed level represents the speed at which it inspects the next short road segment L. In short, the more severe the damage to the current short road segment L, the slower the vehicle moves when inspecting the next segment, thus increasing the inspection frequency and accuracy, and vice versa.

[0072] Step 7: The reminder module is used to remind the driver to adjust the speed of the towing vehicle when inspecting the next short road segment L, based on the corresponding speed level of the inspection vehicle. This, in turn, adjusts the speed of the inspection vehicle, which is a road comprehensive performance inspection vehicle based on multi-dimensional data collection.

[0073] In step one, if the road being tested is newly built or in the initial stage after the most recent major overhaul, set a higher value for P1 and P2, because new road surfaces usually have better performance; as the road is used for a longer period of time, gradually reduce the values ​​of P1 and P2 to reflect the actual situation that the road performance decreases with time and use.

[0074] In step two, the weights are dynamically adjusted considering factors such as road usage frequency and the proportion of heavy-duty vehicles. For example, if the road is frequently used by heavy-duty vehicles, the weights of pavement thickness and rutting condition are appropriately increased. The weights of pavement smoothness and texture depth can also be fine-tuned based on the type of pavement material (such as asphalt, concrete, etc.) and its aging rate. If the road is in an area with high rainfall, the weight of pavement void condition is increased, as water infiltration may cause roadbed instability. If the road is in a mountainous or earthquake-prone area, the weight of pavement thickness is increased, as the pavement in this area requires stronger load-bearing capacity.

[0075] In step five, the data processing module generates the overall performance coefficients in the following way:

[0076] In the formula: P represents the comprehensive performance data of this road section; I DW This is a measurement of falling weight deflection; the smaller the value, the higher the pavement strength. (A) V This represents the percentage of pavement surface area that has become detached; a smaller value indicates fewer instances of pavement surface detachment. P This represents road surface smoothness; the closer the value is to 1, the smoother the road surface. PThis represents the pavement's construction depth; a smaller value indicates that the construction depth better meets the standards. R D , represents rutting depth; the smaller this value, the fewer the rutting problems; T is the ratio of actual pavement thickness to design thickness; the closer this value is to 1, the better the pavement thickness meets design requirements; D is the score for pavement appearance damage; the closer this value is to 0, the more severe the damage; w i The weighting coefficients for each parameter satisfy the following condition: It can be adjusted according to the actual situation; f(x) is the smoothness variation function over the length L of the road segment; dx is an overall measure of smoothness; the larger the integral, the worse the road smoothness. This is the attenuation factor, used to comprehensively consider the influence of all parameters.

[0077] The comprehensive road performance testing system can simultaneously collect and process multiple road performance indicators, such as falling weight deflection, pavement voids, and pavement smoothness, thereby providing a more comprehensive assessment of road performance. Through scientific data collection and processing methods, the system can provide accurate and reliable performance evaluation results. Furthermore, by dynamically adjusting the speed of the testing vehicle, the system can adapt to the testing requirements of different road sections, improving the targeting and accuracy of the testing.

[0078] The method for obtaining the road surface appearance damage score D in the above-mentioned section is as follows:

[0079] S1. The road surface is continuously photographed by the data acquisition module, such as the road damage detection camera 171, to capture various road damage conditions, such as cracks, potholes, and peeling.

[0080] S2. The data acquisition module transmits the acquired high-definition images to the data processing module in real time.

[0081] S3, the data processing module preprocesses the image, including noise reduction and contrast enhancement, then identifies and classifies the damage, and then uses image processing technology (such as edge detection, morphological analysis, etc.) to automatically identify road surface damage in the image; then the identified damage is classified according to type, size, etc.

[0082] S4. The data processing module sets a scoring standard for each type of damage based on factors such as the severity, scope, and impact of the damage; then it scores each type of identified damage; finally, it weights and sums the scores of various types of damage to obtain a comprehensive score D of the road surface appearance damage status of the road section.

[0083] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

[0084] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to specific implementations. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A road comprehensive performance testing vehicle based on multi-dimensional data acquisition, characterized in that, include: Mobile board; An industrial control computer is installed on the top surface of the movable board; Ground-penetrating radar, installed on the bottom surface of the moving plate, is used to detect the thickness of the road surface and the condition of road surface voids, and is connected to the industrial control computer for signal transmission. A laser profiler, installed on the bottom surface of the moving plate, is used to detect road surface smoothness, texture depth, and rut conditions, and is connected to the industrial control computer via signal transmission. A falling weight deflectometer is installed through one side of the moving plate to detect the falling weight deflection of the road surface and is connected to the industrial control computer. A GPS locator is installed on the top surface of the mobile board and is connected to the industrial control computer via signal. A fixing frame is installed on the top surface of the movable plate; A road surface damage detection camera, mounted on the mounting bracket, is used to detect the surface damage of the road surface and is connected to the industrial control computer via signal transmission. A cleaning air delivery mechanism includes an air delivery component, a cleaning component, and a drive component. The air delivery component is used to deliver air into the industrial control computer, the cleaning component is used to clean the lens of the road damage detection camera, and the drive component is used to drive the cleaning component and the air delivery component to operate. When the moving plate moves, the cleaning air supply mechanism cleans the lens of the road damage detection camera and supplies air into the industrial control computer. The road comprehensive performance testing vehicle based on multi-dimensional data acquisition also includes a road comprehensive performance testing system, which includes: The data acquisition module is used to collect comprehensive road performance data, which includes falling weight deflection, pavement voids, pavement smoothness, pavement surface damage, rutting, texture depth, and pavement thickness. The data processing module receives comprehensive performance data from the data acquisition module, generates a comprehensive performance coefficient based on the comprehensive performance data, and then determines and generates the corresponding detection vehicle movement speed level based on the comprehensive performance coefficient. The reminder module is used to remind the driver to adjust the speed of the towing vehicle according to the corresponding speed level of the inspection vehicle, thereby adjusting the speed of the inspection vehicle. The speed level of the detection vehicle is generated as follows: The speed levels of the inspection vehicle include Level 1, Level 2, and Level 3, with the speed levels decreasing sequentially from Level 1 to Level 3. The preset threshold range for the overall performance coefficient is: and The < ; like When the overall performance coefficient is considered, the data processing module generates a three-level movement speed rating. like ≤Comprehensive performance coefficient≤ At that time, the data processing module generates a secondary movement speed level; If the overall performance coefficient is greater than At that time, the data processing module generates a first-level movement speed rating.

2. The road comprehensive performance testing vehicle based on multi-dimensional data acquisition according to claim 1, characterized in that, Also includes: Both shafts are rotatably connected to the movable plate; Four movable wheels are respectively installed at both ends of the two shafts; Multiple hanging rings are installed on the side of the movable plate away from the falling weight deflectometer for connection to the traction vehicle; The first bevel gear is fixedly sleeved on the shaft near the falling weight deflectometer.

3. The road comprehensive performance testing vehicle based on multi-dimensional data acquisition according to claim 2, characterized in that, The cleaning components include: Two piston cylinders are fixedly connected to the fixed frame. A piston plate is slidably connected inside the piston cylinder. An air extraction pipe and an air outlet pipe are installed on the top of the piston cylinder. Two piston rods are respectively fixedly connected to piston plates inside the two piston cylinders; A hollow box is fixedly connected to and communicates with the two air outlet pipes; An air outlet duct is formed on one side of the hollow box, facing the lens of the road damage detection camera; Several air inlets are provided on the two aforementioned air extraction pipes; When the piston rod moves up and down repeatedly, the piston cylinder continuously delivers outside air to the hollow box, and the air inside the hollow box is quickly discharged through the air outlet.

4. The road comprehensive performance testing vehicle based on multi-dimensional data acquisition according to claim 3, characterized in that, The driving component includes: A reciprocating lead screw is rotatably connected to the moving plate and the fixed frame; The second bevel gear is installed at the lower end of the reciprocating lead screw and meshes with the first bevel gear; A fixing plate is slidably connected to the fixing frame and fixedly connected to the lower ends of the two piston rods; A movable cylinder passes through the fixed plate and is fixedly connected to the fixed plate, and is sleeved on the reciprocating lead screw; When the reciprocating screw rotates, the moving cylinder moves back and forth along the reciprocating screw, and the fixed plate moves with the moving cylinder.

5. The road comprehensive performance testing vehicle based on multi-dimensional data acquisition according to claim 4, characterized in that, The driving component also includes: Both rings pass through the fixing plate and are fixedly connected to the fixing plate; The cleaning wipes are ring-shaped and are installed on the inner walls of the two rings respectively, and are respectively fitted onto the two suction pipes for cleaning the suction pipes.

6. The road comprehensive performance testing vehicle based on multi-dimensional data acquisition according to claim 4, characterized in that, The gas delivery assembly includes: A fixing cylinder is installed on the top surface of the fixing frame; The filter plate is installed on the bottom surface of the fixed cylinder, and the reciprocating screw passes through the filter plate and is rotatably connected to the filter plate. The gas delivery pipe has one end connected to the fixed cylinder and the other end connected to the industrial control computer. The fan blades are located inside the fixed cylinder and are mounted on the reciprocating lead screw.

7. The road comprehensive performance testing vehicle based on multi-dimensional data acquisition according to claim 1, characterized in that, Also includes: A storage battery, installed on the top surface of the movable plate, is used to power the industrial control computer, ground penetrating radar, laser profiler, falling weight deflectometer, GPS locator, and road damage detection camera.

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