A vehicle-mounted pavement aging detection device, system and vehicle

Abstract

The application provides a vehicle-mounted road surface aging detection device, system and vehicle, wherein the vehicle-mounted road surface aging detection device comprises a shell part including a shell and a cover plate; the shell surface is formed with an opening area, and an accommodating space in communication with the opening area is arranged inside; the cover plate is movably mounted on the opening area; a protection part includes a cleaning belt and first and second spools oppositely arranged on both sides of the shell; the cleaning belt is at least laid on the outer surface of the cover plate corresponding to the opening area, and both ends of the cleaning belt are connected with the first and second spools respectively; a measurement assembly is arranged in the accommodating space; wherein the cover plate and the cleaning belt are both transparent materials. Through the above structure, the lens or detection window can be cleaned in time under complex road conditions, the detection accuracy is ensured, and then nondestructive, continuous, efficient and high-precision highway road surface aging detection is realized.

Description

Technical Field

[0001] This utility model relates to the field of intelligent transportation and vehicle inspection technology, and in particular to an on-board road surface aging detection device, system and vehicle. Background Technology

[0002] With the accelerated construction of highways and urban road networks, road surface maintenance is becoming increasingly important for traffic safety and efficiency. Asphalt pavements are subjected to vehicle loads, ultraviolet radiation, temperature changes, and rain and snow erosion over long periods, making the binder prone to oxidation and aging, leading to cracking, spalling, and decreased strength. Failure to monitor aging and implement preventative maintenance in a timely manner will not only increase future repair costs but may also pose traffic safety risks.

[0003] Currently, relevant technologies typically monitor road surface aging through manual visual observation or sampling experiments. However, both methods have significant drawbacks: manual methods are difficult to quantify, are easily affected by lighting and environmental interference, and have limited measurement accuracy; while sampling analysis can achieve higher accuracy, it requires drilling road surface core samples, which is inefficient and damages the road surface structure. In addition, some related technologies attempt to mount detection equipment on vehicles to improve efficiency, but this leads to distorted detection results when facing complex road conditions such as water accumulation and mud.

[0004] Therefore, how to design a road surface aging detection device to achieve non-destructive, efficient, and high-precision road surface aging detection when conducting tests on roads with different conditions has become an urgent technical problem to be solved. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide an on-board road surface aging detection device, system and vehicle to solve or partially solve the above problems.

[0006] To achieve the above objectives, this utility model provides a vehicle-mounted road surface aging detection device, comprising: The outer casing includes a housing and a cover plate; the surface of the housing has an opening area, and an accommodating space communicating with the opening area is provided inside; the cover plate is movably installed in the opening area so that the cover plate covers and seals the opening area; The protective part includes a cleaning tape and a first and a second reel disposed opposite to each other on both sides of the housing; the cleaning tape is at least laid on the outer surface of the cover plate corresponding to the opening area, and its two ends are respectively connected to the first and the second reel. A measuring component, located within the accommodating space, is used at least to acquire reflectance spectral data of the road surface; Both the cover plate and the cleaning belt are made of transparent material.

[0007] Optionally, at least one of the first and second reels is provided with a scraper; one end of the scraper is fixed and the other end abuts against the surface of the cleaning belt.

[0008] Optionally, at least one of the first and second reels is provided with a driving mechanism to drive the cleaning belt to move along the outer surface of the cover plate and to wind the cleaning belt from one reel to the other reel.

[0009] Optionally, a waterproof curtain is also provided at the top of the housing.

[0010] Optionally, the accommodating space is further provided with a displacement mechanism, and the measuring component is tractively connected to the displacement mechanism so that the measuring component can move within the accommodating space.

[0011] Optionally, the displacement mechanism includes a displacement screw and a sliding seat that cooperate with each other, and the measuring component is hinged to the sliding seat.

[0012] Optionally, the bottom surface of the sliding seat is provided with a sliding groove, and the corresponding area of ​​the bottom surface of the accommodating space is provided with a sliding rail that cooperates with the sliding groove.

[0013] Optionally, the transparent material of the cover plate includes, but is not limited to, tempered glass, PC board, or acrylic board; The transparent material of the cleaning strip includes, but is not limited to, PET film, FEP film, or optical-grade TPU film.

[0014] Based on the same concept, this application also provides an on-board road surface aging detection system, comprising: The vehicle-mounted road surface aging detection device described above is installed in the front area of ​​the vehicle, and the opening area faces away from the vehicle body. The controller is electrically connected to the vehicle-mounted road surface aging detection device and is used to receive and process the data collected by the vehicle-mounted road surface aging detection device.

[0015] Based on the same concept, this application also provides a vehicle, including: the vehicle-mounted road surface aging detection system as described above.

[0016] As can be seen from the above description, the vehicle-mounted road surface aging detection device, system, and vehicle provided by this utility model include: a housing part, comprising a housing and a cover plate; an opening area is formed on the surface of the housing, and an accommodating space communicating with the opening area is provided inside; the cover plate is movably installed on the opening area to cover and seal the opening area; a protective part, comprising a cleaning strip and a first and a second reel disposed opposite to each other on both sides of the housing; the cleaning strip is at least laid on the outer surface of the cover plate corresponding to the opening area, and its two ends are respectively connected to the first and second reels; a measuring component, located in the accommodating space, the measuring component being used at least to collect the reflectance spectral data of the road surface; wherein, the cover plate and the cleaning strip are both made of transparent material. This application integrates sensors on vehicles to collect data in real time, such as road surface reflectivity and infrared characteristics, thereby directly reflecting the aging degree of asphalt binder. This avoids the subjectivity of manual visual inspection and does not require damage to the road structure. At the same time, it is equipped with a protective and automatic cleaning mechanism, which can clean the lens or detection window in time under complex road conditions such as water accumulation, mud, and dust, ensuring detection accuracy. This enables non-destructive, continuous, efficient and high-precision detection of highway pavement aging, providing scientific and real-time data support for road maintenance. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the vehicle-mounted installation status according to an embodiment of the present utility model; Figure 2 This is a front view of the vehicle-mounted installation state as shown in an embodiment of the present utility model; Figure 3 This is a schematic diagram of the structure of the vehicle-mounted road surface aging detection device according to an embodiment of the present invention; Figure 4 This is an exploded view of the structure of the vehicle-mounted road surface aging detection device according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the protective structure of the vehicle-mounted road surface aging detection device according to an embodiment of the present utility model; Figure 6 This is a schematic diagram of the waterproof curtain structure of the vehicle-mounted road surface aging detection device according to an embodiment of the present invention; Figure 7 This is a schematic diagram of the internal structure of the vehicle-mounted road surface aging detection device according to an embodiment of the present invention.

[0019] Explanation of reference numerals in the attached figures: 100. Outer shell; 110. Housing; 111. Opening area; 112. Receiving space; 120. Cover plate; 200. Protective part; 210. Cleaning belt; 211A. First reel; 211B. Second reel; 300. Measuring component; 400. Scraper; 500. Waterproof curtain; 600. Displacement mechanism; 610. Displacement screw; 620. Sliding seat; 621. Slide groove; 622. Slide rail; 1000. Vehicle-mounted road surface aging detection device; 2000. Controller. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0021] It should be noted that, unless otherwise defined, the technical or scientific terms used in the embodiments of this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," and similar terms used in this application do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the term encompasses the elements or objects listed following the term and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0022] As described in the background section, with the continuous expansion of highways and urban road networks, road surface quality directly affects traffic safety and efficiency. Over long periods of operation, asphalt pavements not only endure continuous vehicle loads and frequent braking impacts, but also suffer from ultraviolet radiation, alternating day and night temperature differences, and rain and snow erosion. These multiple factors cause the asphalt binder to gradually oxidize, harden, and lose its binding force, leading to surface cracking, loosening and spalling, and a decrease in structural strength. If the degree of pavement aging cannot be dynamically and comprehensively monitored and assessed, preventative maintenance cannot be implemented in a timely manner, inevitably increasing the cost of later major repairs and creating potential traffic safety hazards.

[0023] Currently, the two most widely used methods in related technologies are: First, manual visual inspection, where professionals judge aging based on surface characteristics such as changes in pavement color and crack morphology; the principle is to indirectly infer the degree of asphalt oxidation by visually recognizing phenomena such as surface loss of gloss, whitening, and cracks. Second, core sampling and laboratory analysis, where pavement core samples are drilled on-site, and chemical indicators such as carbonyl index and sulfonyl index in the asphalt binder are detected using instruments such as chromatography, mass spectrometry, or Fourier transform infrared spectroscopy (FTIR) to quantitatively assess the aging level; this method, through chemical composition analysis, can accurately reveal the aging mechanism inside the material.

[0024] In response to the aforementioned prior art, the inventors of this application have discovered that, since road surface aging is essentially a degradation of the internal chemical composition and mechanical properties of materials, continuous and quantitative detection of a large area of ​​road surface is necessary while ensuring normal road traffic. However, the aging process is insidious and gradual, making it difficult to accurately identify with the naked eye alone. Furthermore, the degree of aging is unevenly distributed along road sections, and detection relying on only a small number of sampling points cannot comprehensively reflect the overall condition. Moreover, manual visual investigation is subject to a certain degree of subjectivity, greatly affected by lighting, weather, and the experience of operators, and cannot provide a unified quantitative standard. At the same time, the detection range is limited by manpower, making it difficult to continuously cover long road sections. Core drilling analysis is destructive and has a time lag; sampling damages the road surface structure and requires subsequent repairs. The detection cycle is long and only reflects the condition of the sampling points, failing to reflect changes in the overall road condition in real time, and also failing to achieve continuous and quantitative detection of a large area of ​​road surface while ensuring normal road traffic.

[0025] In addition, some related technologies have attempted to install cameras, optical or radar equipment on vehicles to improve detection efficiency. However, in complex road conditions such as water accumulation and mud, the detectors lack protection and cleaning mechanisms, and the lenses are easily blocked, leading to data distortion and deviation in detection results. It is still difficult to achieve non-destructive, continuous, and high-precision all-weather monitoring.

[0026] To address the aforementioned problems, the inventors of this application propose an on-board road surface aging detection device 1000 capable of non-destructive, efficient, high-precision, continuous, and quantitative detection when performing tests on roads under different conditions, in order to solve or partially solve the aforementioned problems.

[0027] The following is in conjunction with the appendix Figures 1-7 The embodiments of this application will be described in detail below.

[0028] In some embodiments, such as Figure 3 , Figure 4 and Figure 5 As shown, this application provides an on-board road surface aging detection device 1000, comprising: The outer casing 100 includes a housing 110 and a cover plate 120; the surface of the housing 110 has an opening region 111, and the interior of the housing 110 has a receiving space 112 communicating with the opening region 111; the cover plate 120 is movably installed on the opening region 111 so that the cover plate 120 covers and seals the opening region 111. The protective part 200 includes a cleaning tape 210 and a first roll 211A and a second roll 211B disposed opposite to each other on both sides of the housing 110; the cleaning tape 210 is at least laid on the outer surface of the cover plate 120 corresponding to the opening area 111, and its two ends are respectively connected to the first roll 211A and the second roll 211B. The measuring component 300 is located within the accommodating space 112, and the measuring component 300 is used at least to collect the reflectance spectrum data of the road surface; Both the cover plate 120 and the cleaning belt 210 are made of transparent material.

[0029] Exemplarily, the outer casing 100 comprises a housing 110 and a cover plate 120. The surface of the housing 110 has an opening area 111, and an accommodating space 112 is formed inside the housing, communicating with the opening area 111. The cover plate 120 is movably mounted on the opening area 111, covering and sealing the opening area 111. Optionally, it engages with the housing 110 by sliding, hinge, or snap-fit ​​to ensure a tight fit. The accommodating space 112 not only provides fixation and protection for the measuring component 300 but also ensures that the optical sensor can acquire external road surface signals.

[0030] Optionally, the cover plate 120 may be made of a transparent material (such as tempered glass) to balance optical transmittance and mechanical strength; the housing 110 may be made of weather-resistant and corrosion-resistant materials, such as aluminum alloy or high-strength engineering plastics, to ensure long-term reliable operation.

[0031] For example, the protective part 200 includes a cleaning belt 210 covering the surface of the cover plate 120 and rollers disposed on both sides of the housing 110. The two ends of the cleaning belt 210 are respectively wound and fixed on the first roller 211A and the second roller 211B, and can be moved along the surface of the cover plate 120 by a tensioning mechanism or a driving device (driving mechanism). When the surface of the cleaning belt 210 is contaminated by water mist, mud or dust, the driving mechanism can roll the dirty part into the roller, so that the clean section of the cleaning belt 210 covers the surface of the cover plate 120, thereby achieving continuous cleaning or timed replacement.

[0032] Optionally, both the first reel 211A and the second reel 211B can be driven by a motor or a spring, and a dustproof and corrosion-resistant mechanism can be added while they are fixed to the housing 110. The cleaning belt 210 can be made of transparent, wear-resistant, and anti-aging materials (such as PET film, FEP film, or optical-grade TPU film, etc.), which will not affect optical measurements and can cope with pollutants such as road surface water, mud, and dust, enabling real-time cleaning and long-term continuous operation.

[0033] Exemplarily, the measuring component 300 is located inside the housing 110's accommodating space 112, and includes at least an optical or spectral sensor for collecting road surface reflectance spectral data. Further, the measuring component 300 is angle-adjustable via a bracket to ensure the optical axis maintains the optimal distance and angle of incidence with the road surface, and is connected to the vehicle-mounted computing unit or controller 2000 via a data cable or wireless module to achieve real-time data transmission and processing. The measuring component 300 can non-destructively and continuously monitor the aging degree of asphalt binder, and has vibration resistance, waterproofing, and dustproofing capabilities. Optionally, the accommodating space 112 can be equipped with a shock-absorbing bracket or buffer pad to ensure that the sensor stably collects high-precision data during driving.

[0034] The application embodiment will be described by way of example, referring to the cooperative operation between the housing 100, the protective part 200, and the measuring component 300.

[0035] During road aging tests, the outer casing 100, together with the housing 110 and the cover plate 120, forms a sealed receiving space 112, enclosing the measuring component 300 inside. This prevents rainwater, dust, and mud from entering and provides a stable environment, ensuring that the sensor is not affected by vibration or impact during vehicle operation. Simultaneously, the cover plate 120 is made of a transparent material, allowing optical signals to pass through smoothly, enabling the measuring component 300 to accurately acquire road surface spectral data.

[0036] The protective unit 200 fits tightly with the outer shell 100, and the cleaning belt 210 covers the outer surface of the cover plate 120, constantly cleaning away contaminants such as water mist, mud, dust, or fallen leaves. The cleaning belt 210 moves along the surface of the cover plate 120 via a reel and drive mechanism. When a contaminated area is detected, the dirty part is rolled into the reel, while the clean section covers the cover plate 120, thus ensuring that the optical sensor can acquire a clear signal in any environment. Even under complex road conditions during continuous driving, such as rainy days, muddy roads, or dusty environments, the protective unit 200 can automatically adjust the position of the cleaning belt 210 to achieve real-time cleaning without manual intervention.

[0037] It should be noted that the measuring component 300 is located within the protected receiving space 112, and the optical axis can be adjusted via a bracket to maintain the optimal incident angle and measuring distance with the road surface. Under the sealed protection of the outer casing 100 and the continuous maintenance of the cleaning belt 210, the sensor can continuously collect road surface reflectance spectral data to quantitatively analyze the aging degree of the asphalt binder. Simultaneously, the data is transmitted and processed in real time with the controller 2000, enabling long-distance, non-destructive, and continuous monitoring.

[0038] In summary, the outer casing 100 provides stable protection, the protective unit 200 ensures the cleanliness of the optical channel, and the measuring component 300 efficiently acquires signals; the three work together organically. Even in adverse road conditions, the protective unit 200 automatically cleans the surface of the cover plate 120, and the measuring component 300 maintains high-precision detection, ensuring reliable test results. Furthermore, the entire device is easy to maintain, stable in long-term use, and meets the requirements for continuous road aging monitoring.

[0039] This embodiment provides a vehicle-mounted road surface aging detection device 1000, including: a housing 100, comprising a housing 110 and a cover plate 120; the housing 110 has an opening area 111 formed on its surface, and an accommodating space 112 communicating with the opening area 111 is provided inside; the cover plate 120 is movably installed on the opening area 111 so that the cover plate 120 covers and seals the opening area 111; a protective part 200, including a cleaning strip 210 and a first reel 211A and a second reel 211B disposed opposite to each other on both sides of the housing 110; the cleaning strip 210 is at least laid on the outer surface of the cover plate 120 corresponding to the opening area 111, and its two ends are respectively connected to the first reel 211A and the second reel 211B; a measuring component 300 is located in the accommodating space 112, and the measuring component 300 is at least used to collect the reflectance spectrum data of the road surface; wherein, the cover plate 120 and the cleaning strip 210 are both made of transparent material. This embodiment integrates sensors on the vehicle to collect data in real time, such as road surface reflectivity and infrared characteristics, thereby directly reflecting the aging degree of asphalt binder. This avoids the subjectivity of manual visual inspection and does not require damage to the road structure. At the same time, it is equipped with a protective and automatic cleaning mechanism, which can clean the lens or detection window in time under complex road conditions such as water accumulation, mud, and dust, ensuring detection accuracy. This enables non-destructive, continuous, efficient and high-precision detection of highway pavement aging, providing scientific and real-time data support for road maintenance.

[0040] In some embodiments, such as Figure 3 , Figure 4 and Figure 5 As shown, at least one of the first reel 211A and the second reel 211B is provided with a scraper 400; one end of the scraper 400 is fixed, and the other end abuts against the surface of the cleaning belt 210.

[0041] For example, the scraper 400 is mounted on at least one of the first reel 211A and the second reel 211B. One end of the scraper is fixed to a mounting bracket outside the reel body or housing 110, and the other end is in close contact with the surface of the cleaning belt 210, sliding relative to it along the movement trajectory of the cleaning belt 210, thereby cleaning contaminants such as water mist, mud, dust, or fallen leaves adhering to the surface of the cleaning belt 210. Specifically, the fixed end of the scraper 400 can be installed by screws, clips, or hinges to ensure stable positioning and withstand the tension of the cleaning belt 210; its free end (the end that abuts against the cleaning belt 210) allows it to move continuously while in contact with the cleaning belt 210, achieving a scraping effect. The width of the scraper 400 can be adapted according to the design of the cleaning belt 210 to ensure comprehensive coverage and thorough cleaning.

[0042] For example, the scraper blade 400 may be made of wear-resistant and elastic rubber, polyurethane, or silicone to avoid damaging the surface of the cleaning belt 210 when removing mud, dust, or water stains. Optionally, its shape may be designed as a flat plate, arc, or trapezoid with a slightly curved front end to enhance the fit with the cleaning belt 210, improve cleaning efficiency, and reduce frictional resistance. Furthermore, an adjustable mounting base may be provided on the reel or mounting bracket to adjust the contact pressure between the scraper blade 400 and the cleaning belt 210, thereby balancing cleaning effectiveness and the lifespan of the cleaning belt 210.

[0043] For example, the scraper 400 works in conjunction with the cleaning belt 210, the reels (first reel 211A and / or second reel 211B), and the measuring component 300. During the movement of the cleaning belt 210, the scraper 400 performs initial cleaning of large particulate contaminants, making the winding of the cleaning belt 210 smoother and ensuring that the surface of the cleaning belt 210 corresponding to the covered area remains clean, thereby ensuring the accuracy of the optical or spectral data acquired by the measuring component 300. The scraper 400, fixed to the end of the reel or a bracket, maintains effective contact even when the cleaning belt 210 is wound and stored, achieving continuous cleaning. By keeping the cleaning belt 210 clean, the scraper 400 indirectly ensures that the measuring component 300 stably acquires high-quality data under different road conditions, avoiding measurement errors.

[0044] It is important to note that during use, the contact pressure between the scraper blade 400 and the cleaning belt 210 should be moderate. Excessive pressure may wear down the cleaning belt 210, while insufficient pressure will affect the cleaning effect. The materials must be resistant to high and low temperatures and aging to adapt to different climates. The installation structure must be stable and vibration-proof to prevent the scraper blade 400 from shifting or being damaged due to vehicle movement. It is also crucial to ensure that the shape of the scraper blade 400 matches the width of the cleaning belt 210 so that the entire effective width can be cleaned.

[0045] This embodiment improves protection capabilities, extends the lifespan of the cleaning belt 210, ensures detection accuracy, and enhances continuity by providing a scraper 400 in at least one of the first reel 211A and the second reel 211B. The scraper 400 can remove large particulate pollutants from the cleaning belt 210, reduce the friction load on the cleaning belt 210, prevent mud and water from directly covering the cover plate 120 or the cleaning belt 210, ensure that the optical sensor can still operate with high precision under complex road conditions, and reduce manual maintenance intervention.

[0046] In some embodiments, such as Figure 3 , Figure 4 and Figure 5 As shown, at least one of the first spool 211A and the second spool 211B is provided with a driving mechanism to drive the cleaning belt 210 to move along the outer surface of the cover plate 120 and to wind the cleaning belt 210 from one spool to the other spool.

[0047] Exemplarily, at least one of the first reel 211A and the second reel 211B is equipped with a drive mechanism to move the cleaning belt 210 along the outer surface of the cover plate 120, thereby enabling the cleaning belt 210 to be wound and stored from one reel to the other. Specifically, the drive mechanism can be a small motor, a stepper motor, or a gear / belt drive device, which transmits rotational power to the reel through bearings fixed on the reel, causing the cleaning belt 210 to move continuously. The two ends of the cleaning belt 210 are respectively fixed on the first reel 211A and the second reel 211B. During movement, it is pulled by the drive reel, while the other reel plays a role in storing or tensioning, maintaining a constant tension on the cleaning belt 210. In addition, if both reels are equipped with drive mechanisms, bidirectional movement or automatic reverse cleaning function can be achieved through synchronous control.

[0048] Optionally, the drive mechanism may be a waterproof and dustproof motor, combined with a reduction gear or belt drive, to ensure smooth movement and controllable speed of the cleaning belt 210. A tension adjustment device may be installed on the reel or drive mechanism to maintain appropriate tension on the cleaning belt 210 under different working conditions, preventing wear caused by slackness or excessive tightness.

[0049] For example, the drive mechanism works in conjunction with the reel, cleaning belt 210, and other components. The drive mechanism provides rotational power, which the reel converts into linear motion of the cleaning belt 210, ensuring continuous movement of the cleaning belt 210 along the surface of the cover plate 120. The reel winds up and unwinds the cleaning belt 210 while maintaining appropriate tension, keeping it in close contact with the shape of the cover plate 120 to improve cleaning effectiveness.

[0050] This embodiment achieves automatic cleaning and continuous operation by cooperating with the first roll 211A and the second roll 211B through a drive mechanism. It can drive the cleaning belt 210 to clean up dust, mud, water stains and other pollutants in real time, improving the measurement accuracy of the optical / spectral sensor. At the same time, it does not require manual intervention, which can meet the needs of continuous detection on highways. In environments with water accumulation, mud or a lot of dust, continuous cleaning ensures that the sensor optical path is unobstructed, so that the detection data is accurate and reliable.

[0051] In some embodiments, such as Figure 6 As shown, a waterproof curtain 500 is also provided at the top of the housing 110.

[0052] For example, a waterproof curtain 500 is provided at the top of the housing 110 to shield the opening area 111 and its surrounding area, thereby protecting the measuring component 300. Specifically, the fixed end of the waterproof curtain 500 can be rotatably connected to the top of the housing 110 via a pin, mounting post, etc., ensuring both stability and reliability, and allowing adjustment of the hanging angle of the free end to adapt to different protection requirements.

[0053] For example, the material of the waterproof curtain 500 needs to have weather resistance, UV resistance, low temperature resistance, and wear resistance. Silicone rigid sheet, flexible alloy sheet, transparent rigid sheet, etc., can be selected. Its width is slightly larger than the opening area 111 to ensure that some rainwater or splashing mud is blocked.

[0054] This embodiment, by setting up a waterproof curtain 500 and further combining it with a multi-layer protection mechanism formed by a cover plate 120, a cleaning belt 210, and a scraper 400, can effectively ensure the long-term stable operation of the device and reduce the impact of environmental interference on optical measurements.

[0055] In some embodiments, such as Figure 4 and Figure 7 As shown, a displacement mechanism 600 is also provided in the accommodating space 112, and the measuring component 300 is connected to the displacement mechanism 600 in a transmission manner so that the measuring component 300 can move within the accommodating space 112.

[0056] For example, a displacement mechanism 600 is provided within the accommodating space 112 to drive the measuring component 300 to move along a predetermined trajectory, thereby achieving continuous detection of the entire opening area 111. Specifically, the displacement mechanism 600 can be driven by a guide rail + slider, electric lead screw, linear motor, or gear rack, etc., to drive the measuring component 300 to the drive source (such as a motor). The measuring component 300 is fixedly connected to the slider or motion platform (sliding seat 620) via a bracket or connecting seat to ensure that the optical axis direction and height remain stable during movement. The displacement mechanism 600 is mounted on the base plate of the accommodating space 112 and can also be guided to ensure smooth movement and avoid shaking or tilting.

[0057] For example, the displacement mechanism 600 works closely with the measuring component 300, the cover plate 120, and the cleaning belt 210. The displacement mechanism 600 drives the measuring component 300 to move along a predetermined trajectory, enabling the sensor to collect spectra of the corresponding detection coverage area along the entire length of the cover plate 120; the cleaning belt 210 keeps the surface of the cover plate 120 clean, ensuring that the optical data is not affected by contamination; at the same time, it can also be combined with the vehicle control unit to control the displacement speed, sampling frequency, and scanning mode to achieve high-resolution, continuous road aging measurement.

[0058] This embodiment expands the detection coverage and improves data accuracy and resolution by setting a displacement mechanism 600; at the same time, the mobile measurement can cover the road surface at multiple points and generate a high-resolution aging distribution map; it can also be combined with protective measures such as cover plate 120, cleaning belt 210, and waterproof curtain 500 to ensure that the measurement component 300 moves smoothly and the optical path is clear in complex environments without the need for manual intervention.

[0059] In some embodiments, such as Figure 7 As shown, the displacement mechanism 600 includes a displacement screw 610 and a sliding seat 620 that cooperate with each other, and the measuring component 300 is hinged to the sliding seat 620.

[0060] For example, the displacement mechanism 600 employs a high-precision lead screw drive, consisting of a precision threaded shaft (lead screw, displacement lead screw 610) and a drive motor. The drive motor can be a stepper motor or a servo motor, and can also be integrated into the support base. By rotating the lead screw, it drives the sliding seat 620 to move linearly along the axial direction. The outer surface of the lead screw is machined with high-precision threads, and its pitch and lead can be optimized according to the requirements of measurement accuracy and movement speed, thereby achieving stable and controllable linear displacement within a limited space. In addition, both ends of the lead screw can be fixed to the bottom plate of the housing 110 through support bases with support bearings. The drive motor and the lead screw can be coaxially connected or connected through a coupling to ensure smooth transmission and reduce operating noise.

[0061] Specifically, the sliding seat 620 is screwed into the lead screw via a nut or threaded block, enabling smooth linear movement when the lead screw rotates.

[0062] For example, a hinged connection device is provided above the sliding seat 620 for mounting the measuring component 300. The hinge point can be a wear-resistant alloy pin or a self-lubricating bushing, which can maintain flexible rotation and angle fine adjustment function under long-term vibration environment. Specifically, the measuring component 300 is fixed on the sliding seat 620 through this hinged connection, and can be freely adjusted within a small angle range perpendicular to the direction of movement of the lead screw to automatically correct the optical angle or compensate for deviations caused by slight vibration. When the motor drives the lead screw to rotate, the sliding seat 620 moves smoothly along the axial direction, realizing high-precision displacement of the measuring component 300 within the accommodating space 112. The hinged structure allows the measuring component 300 to automatically compensate for the angle of the road surface with slight undulations, keeping the optical detection axis perpendicular to the road surface or within the set angle range, ensuring stable and reliable data acquisition.

[0063] In this embodiment, a displacement mechanism 600 is used, consisting of a lead screw 610 and a sliding seat 620 that work together. The fine step size and high positioning accuracy transmitted by the lead screw 610 enable continuous scanning at millimeter level or even higher resolution. Meanwhile, the automatic angle adjustment of the hinged measuring component 300 further improves the reliability and accuracy of spectral data acquisition.

[0064] In some embodiments, such as Figure 7 As shown, the bottom surface of the sliding seat 620 is provided with a sliding groove 621, and the corresponding area of ​​the bottom surface of the accommodating space 112 is provided with a sliding rail 622 that cooperates with the sliding groove 621.

[0065] For example, the bottom surface of the sliding seat 620 is machined with a longitudinal groove 621 along its direction of movement. Optionally, the groove 621 has a "U" or "V" shaped cross-section to provide a stable guiding effect. A matching metal or engineering plastic slide rail 622 is fixedly installed on the corresponding area of ​​the bottom surface of the accommodating space 112. The slide rail 622 fits tightly with the groove 621 and is coated with a wear-resistant coating. After assembly, the groove 621 and the slide rail 622 form a fitted guiding structure, which can guide the sliding seat 620 to move smoothly along a predetermined trajectory under the drive of a lead screw, while effectively limiting lateral sway and tilting, improving overall displacement accuracy and vibration resistance.

[0066] This embodiment adds a slide groove 621 and a slide rail 622 mechanism to form a double guide constraint on the basis of using a displacement screw 610 and a sliding seat 620 that cooperate with each other as the displacement mechanism 600. This can effectively suppress the lateral sway and offset generated during vehicle movement and ensure that the measuring component 300 moves smoothly along the predetermined trajectory.

[0067] In some embodiments, the transparent material of the cover plate 120 includes, but is not limited to, tempered glass, PC board, or acrylic board; The transparent material of the cleaning strip 210 includes, but is not limited to, PET film, FEP film, or optical-grade TPU film.

[0068] For example, the cover plate 120 is made of high-strength tempered glass as a transparent protective layer, and its surface is treated with anti-glare and anti-scratch coating to ensure that it still has excellent light transmittance and impact resistance under high-speed driving and bad weather conditions.

[0069] The cleaning belt 210 is made of optical-grade TPU film, which is flexible, wear-resistant and highly transparent. It can move continuously along the outer surface of the cover plate 120 under the drive mechanism to achieve real-time cleaning of the cover plate 120 and protection of the optical window.

[0070] By selecting and combining different transparent materials, this embodiment not only ensures that the measuring component 300 continuously obtains clear optical signals in rainy and dusty environments, but also improves the overall durability and long-term stability of the device.

[0071] Based on the same concept, such as Figure 1 and Figure 2 As shown, this application also provides an on-board road surface aging detection system, including: The vehicle-mounted road surface aging detection device 1000 described above is installed in the front area of ​​the vehicle, and the opening area 111 faces away from the vehicle body. The controller 2000 is electrically connected to the vehicle-mounted road surface aging detection device 1000 and is used to receive and process the data collected by the vehicle-mounted road surface aging detection device 1000.

[0072] For example, this system is installed entirely on a moving vehicle, enabling non-destructive, continuous, and quantitative aging detection of asphalt pavement while the vehicle is in motion. The entire platform consists of an onboard pavement aging detection device 1000 and a controller 2000, forming an integrated real-time detection system with the vehicle through electrical connections and mechanical protection structures. While the vehicle is in normal operation, the system can simultaneously collect pavement spectral signals and location information, and instantly output aging distribution results, providing accurate decision-making basis for road maintenance.

[0073] For example, the vehicle-mounted road surface aging detection device 1000 is installed below the front of the vehicle or on the front bumper, with its opening area 111 facing away from the vehicle body, allowing the optical probe to be directly aimed at the road surface and avoiding interference caused by vehicle body reflections. The sensors in the vehicle-mounted road surface aging detection device 1000 include, but are not limited to, a spectral sensor, which can collect the road surface reflectance spectrum in real time, covering the absorption band of characteristic functional groups of asphalt binder (typically 1600 cm⁻¹). -1 -1800cm -1 and 1000cm -1 -1300cm -1The mid-infrared or near-infrared bands directly reflect the degree of asphalt aging.

[0074] In addition, the cleaning strip 210 and the waterproof curtain 500 keep the optical window clean and transparent during vehicle operation, effectively blocking pollutants and ensuring stable optical path even in water, mud or dusty road conditions.

[0075] For example, the controller 2000 includes a positioning assistance unit and a control and data processing unit.

[0076] The positioning assistance unit consists of a high-precision GPS module and an inertial measurement unit (IMU). The GPS records the precise geographic coordinates of each sampling point, while the IMU provides three-axis acceleration and attitude information to compensate for optical errors caused by vehicle bumps, vibrations, and tilting. Both are connected to the control and data processing unit via a CAN bus or serial bus to achieve synchronization of spectral data and position information.

[0077] The control and data processing unit can employ a high-performance embedded processor, maintaining a reliable connection with the spectral sensor, GPS, and IMU via a waterproof cable. Optionally, its internal data processing software can integrate chemometric algorithms (such as partial least squares (PLS)) to calculate the aging index or other indicators in real time from the acquired raw spectrum and bind the results to the corresponding coordinates. The processed data can directly generate a long-distance, high-resolution road aging distribution map and transmit it to the back-end management system in real time via a wireless module.

[0078] The vehicle-mounted road surface aging detection system provided in this embodiment can achieve full-width continuous scanning of the road surface without damaging the road surface. At the same time, the cleaning belt 210 and waterproof curtain 500 of the vehicle-mounted road surface aging detection device 1000 form multiple layers of protection, ensuring that the optical probe can operate in all weather conditions, even in complex environments such as rain, mud, and dust. In addition, by determining the aging data based on the collected road surface spectral data and corresponding it one-to-one with the precise geographical location, it is convenient for road maintenance departments to accurately locate and formulate maintenance plans.

[0079] Based on the same concept, this application also provides a vehicle, including: the vehicle-mounted road surface aging detection system as described above.

[0080] The beneficial effects of this vehicle are the same as those of the vehicle-mounted road surface aging detection system in the above embodiments, and will not be repeated here.

[0081] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of this application (including the claims) is limited to these examples; within the scope of this invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of this invention as described above, which are not provided in the details for the sake of brevity.

[0082] The embodiments of this utility model are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A vehicle-mounted road surface aging detection device, characterized in that, include: The outer casing includes a housing and a cover plate; the surface of the housing has an opening area, and the interior of the opening area has a receiving space communicating with the opening area; The cover plate is movably installed in the opening area so that the cover plate covers and seals the opening area; The protective part includes a cleaning tape and a first and a second reel disposed opposite to each other on both sides of the housing; the cleaning tape is at least laid on the outer surface of the cover plate corresponding to the opening area, and its two ends are respectively connected to the first and the second reel. A measuring component, located within the accommodating space, is used at least to acquire reflectance spectral data of the road surface; Both the cover plate and the cleaning belt are made of transparent material.

2. The vehicle-mounted road surface aging detection device according to claim 1, characterized in that, At least one of the first and second reels is provided with a scraper; one end of the scraper is fixed and the other end abuts against the surface of the cleaning belt.

3. The vehicle-mounted road surface aging detection device according to claim 1, characterized in that, At least one of the first and second reels is provided with a drive mechanism to move the cleaning belt along the outer surface of the cover plate and to wind the cleaning belt from one reel to the other reel.

4. The vehicle-mounted road surface aging detection device according to claim 1, characterized in that, A waterproof curtain is also provided at the top of the shell.

5. The vehicle-mounted road surface aging detection device according to claim 1, characterized in that, The accommodating space is also equipped with a displacement mechanism, and the measuring component is connected to the displacement mechanism in a transmission manner so that the measuring component can move within the accommodating space.

6. The vehicle-mounted road surface aging detection device according to claim 5, characterized in that, The displacement mechanism includes a displacement screw and a sliding seat that cooperate with each other, and the measuring component is hinged to the sliding seat.

7. The vehicle-mounted road surface aging detection device according to claim 6, characterized in that, The bottom surface of the sliding seat is provided with a sliding groove, and the corresponding area of ​​the bottom surface of the accommodating space is provided with a sliding rail that cooperates with the sliding groove.

8. The vehicle-mounted road surface aging detection device according to claim 1, characterized in that, The transparent material of the cover plate includes, but is not limited to, tempered glass, PC board or acrylic board; The transparent material of the cleaning strip includes, but is not limited to, PET film, FEP film, or optical-grade TPU film.

9. A vehicle-mounted road surface aging detection system, characterized in that, include: The vehicle-mounted road surface aging detection device according to any one of claims 1-8 is installed in the front area of ​​the vehicle, and the opening area is oriented away from the vehicle body; The controller is electrically connected to the vehicle-mounted road surface aging detection device and is used to receive and process the data collected by the vehicle-mounted road surface aging detection device.

10. A vehicle, characterized in that, include: The vehicle-mounted road surface aging detection system as described in claim 9.

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