A laser radar device for road smoothness detection

Abstract

The present invention discloses a laser radar device for detecting the flatness of a road, wherein: a fixed component is installed on a railing on the side of a road, a crossbar is installed between two fixed components; a mobile platform moves along the crossbar to detect the flatness of the road; two fixed seats are relatively clamped on the railing for fixing; a mounting seat is installed on one side of the fixed seat; a clamping piece for fixing the crossbar is installed on the mounting seat; the mobile platform is movably installed on the crossbar or the clamping piece, and a detector is installed on the outer side of the mobile platform close to the road; a laser radar and a camera are installed on one surface of the detector. The present invention fixes the crossbar on the railing on the side of the road by setting a fixed component, and by setting a fixed groove composed of a step groove and an arc groove, the fixed seat can be fixed on railings of different shapes, thereby expanding the use range of the device, and the road flatness is detected by setting a mobile platform loaded with a laser radar.

Description

Technical Field

[0001] The present invention belongs to the technical field of road detection, and in particular relates to a laser radar device for detecting road flatness. Background Art

[0002] Flatness refers to the measurement of the unevenness of the road surface within the specified standard indicators. It is an important indicator for measuring the quality of road construction and service level. The quality of road flatness affects the service life of the road, the loss of transport vehicles, transportation costs and transportation safety, and the road slope is also an important factor affecting the quality of the road. Therefore, how to quickly, effectively and accurately measure the road surface flatness and monitor the road slope has become a very meaningful topic today.

[0003] Existing road surface flatness detection equipment mainly includes two categories: cross-section flatness detection equipment and response type flatness detection equipment.

[0004] Cross-section detection equipment directly obtains the longitudinal section curve of the road surface. Commonly used equipment includes a three-meter ruler, a flatness meter, and a hand-push cross-section meter. There are few sampling points for flatness detection using this type of equipment, and it is not possible to comprehensively and objectively evaluate the flatness of the road. There are also disadvantages such as being greatly affected by human factors, low precision, low efficiency, and high cost. Among cross-section detection equipment, the more advanced detection equipment is the vehicle-mounted laser flatness detector, which has a fast detection speed, reliable data, and high precision, but the measurement accuracy is affected by the bumps and vibrations of the detection vehicle.

[0005] Response-type detection equipment has a fast detection speed but low accuracy because this type of detection equipment cannot directly measure the elevation of the longitudinal section of the road surface, and its detection indicators need to be converted with section-type detection indicators. Summary of the invention

[0006] The purpose of the present invention is to provide a laser radar device for road flatness detection. By setting a fixing component to fix the cross bar on the railing on the side of the road, by setting a fixing groove composed of a step groove and an arc groove, the fixing seat can be fixed on railings of different shapes, thereby expanding the use range of the device. By setting a mobile platform to load the laser radar, the road flatness is detected. Compared with the traditional manual 3m ruler method, it saves manpower and material resources, improves economic benefits, and at the same time improves the efficiency of road surface flatness detection.

[0007] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0008] The present invention discloses a laser radar device for detecting the flatness of a road, comprising a fixing assembly, a mobile platform and a crossbar; the fixing assembly is installed on a railing at the side of a road, and a crossbar is installed between two fixing assemblies; the mobile platform moves along the crossbar to detect the flatness of the road; the fixing assembly comprises a fixing seat, a mounting seat and a clamping piece; the two fixing seats are relatively clamped on the railing for fixing; a fixing groove for matching with the railing is provided on one side of the fixing seat; both sides of the opening end of the fixing groove are symmetrically arranged step grooves for matching with rectangular railings of different models, and the middle of the fixing groove is an arc groove for matching with a circular railing; the mounting seat is installed on a side surface of the fixing seat close to the road; a mounting protrusion is provided on the outer side surface of the mounting seat; a "T"-shaped clamping groove for clamping the crossbar is provided at each end of the side surface of the mounting protrusion; A clamping piece for fixing the cross bar is installed on the mounting seat; the upper and lower end surfaces of the clamping piece and the outer side surface close to the road are aligned and flush with the cross bar; a first guide strip is provided on the upper and lower end surfaces of the clamping piece; a second guide strip is provided on the upper and lower end surfaces of the cross bar; the first guide strip is aligned and flush with the second guide strip; the mobile platform is movably installed on the cross bar or the clamping piece, and a detector is installed on the outer side surface of the mobile platform close to the road; a laser radar and a camera are installed on one surface of the detector; a moving slide groove is provided on one side of the mobile platform; a guide groove is provided on the opposite sides of the moving slide groove; the guide groove slides in sliding cooperation with the first guide strip or the second guide strip; a plurality of mounting grooves are provided side by side on the inner bottom surface of the mobile slide groove; a plurality of driving wheels are installed in the mounting groove; the driving wheel drives the mobile platform to move along the cross bar.

[0009] Furthermore, the fixing seat is provided with a fixing plate at each end of the side of the fixing groove; the fixing plate is provided with a fixing hole; the two fixing seats fixed on the railing are fixed by the fixing plate and the fixing bolts, and the fixing bolts pass through the two fixing holes in sequence and cooperate with nuts;

[0010] A mounting base for fixing the mounting base is arranged on the other side surface of the fixing base; and a mounting screw hole is arranged on the upper surface of the mounting protrusion.

[0011] Furthermore, the mounting seat is fixed to the fixing seat by mounting bolts; a base is provided on one side of the mounting seat; a mounting slot matching the mounting seat is provided on one side of the base; the mounting slot and the mounting seat are both "T" shaped;

[0012] A first through hole is provided on the upper surface of the mounting slot; the mounting bolt passes through the first through hole and engages with the mounting screw hole;

[0013] A plurality of positioning grooves are arranged side by side at both upper and lower ends of the side surface of the mounting protrusion; and a plurality of mounting holes are arranged side by side in the middle of the side surface of the mounting protrusion.

[0014] Furthermore, the clamping part is fixed to the mounting seat by a fixing bolt; a clamping groove is provided on one side of the clamping part; the clamping groove is clamped and matched with the mounting protrusion; a plurality of positioning protrusions are arranged side by side on the two opposite sides of the clamping groove; the positioning protrusions are matched with the positioning groove; a plurality of second through holes are arranged side by side on the inner bottom surface of the clamping groove; the fixing bolt passes through the second through hole and engages with the mounting hole; the second through hole is a blind hole.

[0015] Furthermore, two opposite sides of the guide groove are provided with a plurality of guide wheels in parallel; the guide wheels are slidably matched with the first guide bar or the second guide bar.

[0016] Furthermore, a layer of anti-skid rubber ring is compounded on the peripheral side surface of the driving wheel, and a motor is installed inside the mobile platform, and the motor drives the movement of all the driving wheels.

[0017] Furthermore, a "T"-shaped socket is respectively provided on both end surfaces of the crossbar; the "T"-shaped socket is engaged with the "T"-shaped slot to fix the crossbar between the two fixing components.

[0018] Furthermore, the detector collects road smoothness data through a laser radar and a camera, and transmits the data to a terminal device through a communication module.

[0019] A method for using a laser radar device for road smoothness detection comprises the following steps:

[0020] Stp1. The staff selects the corresponding number of fixed components and crossbars according to the length of the road to be tested;

[0021] Stp2, the staff fixes the fixing assembly on the railing on the side of the road to be tested, and then fixes the crossbar between the two fixing assemblies;

[0022] Stp3, install the mobile platform on the fixed component on the far side, start the detector to start the detection, and the mobile platform is driven by the driving wheel to move along the crossbar until it reaches the fixed component on the other side to complete the detection.

[0023] The present invention has the following beneficial effects:

[0024] The present invention fixes the cross bar on the railing on the side of the road by arranging a fixing component, and by arranging a fixing groove composed of a step groove and an arc groove, the fixing seat can be fixed on railings of different shapes, thereby expanding the application range of the device, and the road flatness is detected by arranging a mobile platform loaded with a laser radar. Compared with the traditional manual 3m ruler method detection, it saves manpower and material resources, improves economic benefits, and at the same time improves the efficiency of road surface flatness detection.

[0025] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0027] Figure 1 It is a schematic diagram of the structure of a laser radar device for road smoothness detection;

[0028] Figure 2 for Figure 1 A partial enlarged view of the middle A;

[0029] Figure 3 is a lateral schematic diagram of a laser radar device for road smoothness detection;

[0030] Figure 4 It is a structural schematic diagram of a fixing seat, a mounting seat and a clamping part;

[0031] Figure 5 is a structural schematic diagram of a fixed seat;

[0032] Figure 6 is a schematic diagram of the structure of the mounting base;

[0033] Figure 7 is a schematic diagram of the structure of the mounting base;

[0034] Figure 8 It is a structural schematic diagram of the card assembly;

[0035] Fig. 9 It is a structural schematic diagram of the card assembly;

[0036] Fig.10 It is a structural diagram of the mobile platform;

[0037] Fig.11 It is a structural diagram of the mobile platform;

[0038] Fig.12 It is a schematic diagram of the structure of the crossbar. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] Embodiment 1:

[0041] See also Figure 1-11 As shown, the present invention is a laser radar device for detecting road flatness, comprising a fixed component, a mobile platform 4 and a crossbar 6; the fixed component is installed on a railing on the side of the road, and a crossbar 6 is installed between the two fixed components; the mobile platform 4 moves along the crossbar 6 to detect the road flatness;

[0042] like Figure 4-5 As shown, the fixing assembly includes a fixing seat 1, a mounting seat 2 and a clamping member 3; the two fixing seats 1 are clamped on the railing for fixing; a fixing groove 103 for matching with the railing is provided on one side of the fixing seat 1; both sides of the opening end of the fixing groove 103 are symmetrically arranged step grooves 1031 for matching with rectangular railings of different models, and the middle of the fixing groove 103 is an arc groove 1032 for matching with a circular railing;

[0043] The fixing seat 1 is provided with a fixing plate 102 at both ends of the side surface of the fixing groove 103; the fixing plate 102 is provided with a fixing hole 1021; the two fixing seats 1 fixed on the railing are fixed by the fixing plate 102 and the fixing bolts, and the fixing bolts pass through the two fixing holes 1021 in turn and cooperate with nuts; the other side surface of the fixing seat 1 is provided with a mounting base 101 for fixing the mounting seat 2; the upper surface of the mounting protrusion 101 is provided with a mounting screw hole 1011.

[0044] like Figure 6-7 As shown, the mounting seat 2 is mounted on a side surface of the fixing seat 1 close to the road; a mounting protrusion 202 is provided on the outer side surface of the mounting seat 2; a "T"-shaped card slot 203 for clamping the cross bar 6 is respectively provided at both ends of the side surface of the mounting protrusion 202; a clamping member 3 for fixing the cross bar 6 is installed on the mounting seat 2; the upper and lower end surfaces and the outer side surface close to the road of the clamping member 3 are aligned and flush with the cross bar 6;

[0045] like Figure 8-9As shown, a first guide strip 303 is provided on both upper and lower end surfaces of the clamping member 3; a second guide strip 602 is provided on both upper and lower end surfaces of the cross bar 6; the first guide strip 303 is aligned and flush with the second guide strip 602; the clamping member 3 is fixed to the mounting seat 2 by a fixing bolt; a clamping groove 301 is provided on one side of the clamping member 3; the clamping groove 301 is clamped and matched with the mounting protrusion 202; a plurality of positioning protrusions 3011 are arranged side by side on the opposite sides of the clamping groove 301; the positioning protrusion 3011 is matched with the positioning groove 204; a plurality of second through holes 302 are arranged side by side on the inner bottom surface of the clamping groove 301; the fixing bolt passes through the second through hole 302 and engages with the mounting hole 205; the second through hole 302 is a blind hole.

[0046] like Figure 10-11 As shown, the mobile platform 4 is movably mounted on the crossbar 6 or the fixture 3, and a detector 5 is mounted on the outer side of the mobile platform 4 close to the road; a laser radar 501 and a camera 502 are mounted on one surface of the detector 5; the detector 5 collects road flatness data through the laser radar 501 and the camera 502, and transmits it to the terminal device through the communication module;

[0047] A moving slide groove 401 is provided on one side of the moving platform 4; a guide groove 4011 is provided on the two opposite sides of the moving slide groove 401; the guide groove 4011 is slidably matched with the first guide bar 303 or the second guide bar 602; a plurality of mounting grooves 4012 are arranged side by side on the inner bottom surface of the moving slide groove 401; a plurality of driving wheels 402 are installed in the mounting groove 4012; the driving wheels 402 drive the moving platform 4 to move along the cross bar 6.

[0048] The mounting base 2 is fixed to the fixing base 1 by means of mounting bolts; a base 201 is provided on one side of the mounting base 2; a mounting slot 2011 cooperating with the mounting base 101 is provided on one side of the base 201; the mounting slot 2011 and the mounting base 101 are both "T"-shaped; a first through hole 2012 is provided on the upper surface of the mounting slot 2011; the mounting bolt passes through the first through hole 2012 and engages with the mounting screw hole 1011; a plurality of positioning grooves 204 are arranged side by side at both upper and lower ends of the side surface of the mounting protrusion 202; a plurality of mounting holes 205 are arranged side by side in the middle of the side surface of the mounting protrusion 202.

[0049] A plurality of guide wheels 403 are arranged side by side on opposite sides of the guide groove 4011; the guide wheels 403 are slidably matched with the first guide strip 303 or the second guide strip 602. A layer of anti-skid rubber ring is compounded on the peripheral side of the driving wheel 402. A motor is installed inside the mobile platform 4, and the motor drives the movement of all the driving wheels 402. The motor is powered by a lithium battery. A controller is arranged on the mobile platform 4, and the controller controls the switch of the motor.

[0050] like Fig.12As shown, a "T"-shaped clamping seat 601 is respectively provided on both end surfaces of the crossbar 6; the "T"-shaped clamping seat 601 is clamped and matched with the "T"-shaped clamping groove 203 to fix the crossbar 6 between the two fixing components.

[0051] Embodiment 2: A method for using a laser radar device for road smoothness detection, comprising the following steps:

[0052] Stp1, the staff selects the corresponding number of fixed components and crossbars 6 according to the length of the road to be tested;

[0053] Stp2, the staff fixes the fixing assembly on the railing on the side of the road to be tested, and then fixes the crossbar 6 between the two fixing assemblies;

[0054] Stp3, install the mobile platform 4 on the fixed component on the far side, start the detector 5 to start the detection, and the mobile platform 4 is driven by the driving wheel 402 to move along the cross bar 6 and the clamping part 3 until it reaches the end of the fixed component on the other side, and then runs in the opposite direction to the end of the other side. This is repeated multiple times to complete the detection; the average value of multiple detections is taken to improve the accuracy of the detection.

[0055] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0056] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A laser radar device for road roughness detection, characterized in that: It comprises a fixed component, a mobile platform (4) and a crossbar (6); the fixed component is mounted on a railing on the side of a road, and a crossbar (6) is mounted between two fixed components; the mobile platform (4) moves along the crossbar (6) to detect the flatness of the road; The fixing assembly comprises a fixing seat (1), a mounting seat (2) and a clamping member (3); the two fixing seats (1) are clamped on the railing for fixing; a fixing groove (103) for matching with the railing is provided on one side of the fixing seat (1); two sides of the opening end of the fixing groove (103) are symmetrically arranged stepped grooves (1031) for matching with rectangular railings of different models, and the middle of the fixing groove (103) is an arc groove (1032) for matching with a circular railing; The mounting seat (2) is mounted on a side surface of the fixing seat (1) close to the road; a mounting protrusion (202) is provided on the outer side surface of the mounting seat (2); a "T"-shaped slot (203) for clamping the cross bar (6) is provided at both ends of the side surface of the mounting protrusion (202); a clamping member (3) for fixing the cross bar (6) is mounted on the mounting seat (2); the upper and lower end surfaces and the outer side surface close to the road of the clamping member (3) are aligned and flush with the cross bar (6); The upper and lower end surfaces of the clamping member (3) are each provided with a first guide strip (303); the upper and lower end surfaces of the cross bar (6) are each provided with a second guide strip (602); the first guide strip (303) is aligned and flush with the second guide strip (602); The mobile platform (4) is movably mounted on a crossbar (6) or a clamping member (3); a detector (5) is mounted on the outer side of the mobile platform (4) close to the road; a laser radar (501) and a camera (502) are mounted on one surface of the detector (5); A movable slide groove (401) is provided on one side of the movable platform (4); two opposite side surfaces of the movable slide groove (401) are each provided with a guide groove (4011); the guide groove (4011) is slidably matched with a first guide bar (303) or a second guide bar (602); a plurality of mounting grooves (4012) are arranged side by side on the inner bottom surface of the movable slide groove (401); a plurality of driving wheels (402) are installed in the mounting grooves (4012); and the driving wheels (402) drive the movable platform (4) to move along the crossbar (6).

2. The laser radar device for road smoothness detection according to claim 1, characterized in that: The fixing seat (1) is provided with a fixing groove (103), and the two ends of the side surface are respectively provided with a fixing plate (102); the fixing plate (102) is provided with a fixing hole (1021); the two fixing seats (1) fixed on the railing are fixed by the fixing plate (102) and the fixing bolts, and the fixing bolts pass through the two fixing holes (1021) in sequence and cooperate with nuts; The other side surface of the fixing seat (1) is provided with a mounting seat (101) for fixing the mounting seat (2); the upper surface of the mounting seat (101) is provided with a mounting screw hole (1011).

3. The laser radar device for road smoothness detection according to claim 2, characterized in that: The mounting seat (2) is fixed to the fixing seat (1) by means of mounting bolts; a base (201) is provided on one side of the mounting seat (2); a mounting slot (211) matching with the mounting seat (101) is provided on one side of the base (201); the mounting slot (211) and the mounting seat (101) are both in a "T" shape; A first through hole (2012) is provided on the upper surface of the mounting slot (2011); the mounting bolt passes through the first through hole (2012) and engages with the mounting screw hole (1011); A plurality of positioning grooves (204) are arranged side by side at both upper and lower ends of the side surface of the mounting protrusion (202); and a plurality of mounting holes (205) are arranged side by side in the middle of the side surface of the mounting protrusion (202).

4. The laser radar device for road smoothness detection according to claim 3, characterized in that: The clamping member (3) is fixed to the mounting seat (2) via a fixing bolt; a clamping groove (301) is provided on one side of the clamping member (3); the clamping groove (301) is clamped and matched with the mounting protrusion (202); A plurality of positioning protrusions (3011) are arranged side by side on two opposite side surfaces of the mounting slot (301); the positioning protrusions (3011) cooperate with the positioning slot (204); a plurality of second through holes (302) are arranged side by side on the inner bottom surface of the mounting slot (301); the fixing bolt passes through the second through hole (302) and engages with the mounting hole (205); the second through hole (302) is a blind hole.

5. A laser radar device for road smoothness detection according to claim 1 or 3, characterized in that: A plurality of guide wheels (403) are arranged side by side on two opposite sides of the guide groove (4011); the guide wheels (403) are slidably matched with the first guide strip (303) or the second guide strip (602).

6. The laser radar device for road smoothness detection according to claim 1, characterized in that: The peripheral side surface of the driving wheel (402) is compounded with a layer of anti-slip rubber ring, and a motor is installed inside the mobile platform (4), and the motor drives the movement of all the driving wheels (402).

7. The laser radar device for road smoothness detection according to claim 1, characterized in that: A "T"-shaped clamping seat (601) is respectively provided on both end surfaces of the crossbar (6); the "T"-shaped clamping seat (601) and the "T"-shaped clamping slot (203) are snap-fitted together to fix the crossbar (6) between the two fixing components.

8. The laser radar device for road smoothness detection according to claim 1, characterized in that: The detector (5) collects road smoothness data through a laser radar (501) and a camera (502), and transmits the data to a terminal device through a communication module.

9. A method for using a laser radar device for road smoothness detection according to any one of claims 1 to 8, characterized in that: The following steps are involved: Stp1, the staff selects the corresponding number of fixing components and crossbars (6) according to the length of the road to be tested; Step 2: The staff fixes the fixing assembly to the railing on the side of the road to be tested, and then fixes the crossbar (6) between the two fixing assemblies; Step 3, the mobile platform (4) is mounted on the fixed component at the farthest side, the detector (5) is started to start the detection, and the mobile platform (4) is driven by the driving wheel (402) to move along the crossbar (6) until the detection is completed on the fixed component at the other side.

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