Road geometric data detection system

Abstract

The invention discloses a road geometric data detection system, and belongs to the technical field of road quality detection.The road geometric data detection system comprises an equipment loading vehicle, wheels are connected to the bottom of the equipment loading vehicle through a rack, a mounting support is arranged at the head position of the equipment loading vehicle, and a gyroscope is fixedly connected to the center of the top of the mounting support; laser distance measuring sensors are fixedly connected to the positions, close to the two sides, of the top of the mounting support, and rotary encoders are fixedly mounted at hubs of the wheels. According to the road geometric data detection system, the transverse and longitudinal slopes and the curvature radius of the road surface can be rapidly, efficiently and accurately detected, the detection efficiency of the road geometric data detection system is improved, the sensor mounting bracket of the data detection system can be positioned and calibrated, and the accuracy of the data detection system is improved; a sensor of a data detection system can be driven to reach a proper acquisition position, and limiting protection can be carried out on the outer side of the mounting bracket.

Description

Technical Field

[0001] The present invention relates to the technical field of road quality detection, and particularly relates to a road geometric data detection system. Background Art

[0002] During the completion acceptance of road projects and the post-operation evaluation, increasing attention has been paid to the transverse and longitudinal slopes of the road surface and the curvature radius index. The transverse and longitudinal slopes of the road surface and the curvature radius index are important indicators for evaluating road quality. At present, most detections require manual operations, with low efficiency. In order to detect the transverse and longitudinal slopes of the road surface and the curvature radius more quickly, efficiently, and accurately, a road geometric data detection system is needed to achieve this.

[0003] However, in the process of using traditional road geometric data detection systems, they cannot detect the transverse and longitudinal slopes of the road surface and the curvature radius quickly, efficiently, and accurately, which will affect the detection efficiency of the road geometric data detection system. There is a lack of a positioning and calibration structure, and the sensor mounting bracket of the data detection system will swing, resulting in a decrease in the accuracy of the data detection system. It is impossible to adjust the elongation of the mounting bracket, and it cannot ensure that the sensor of the data detection system is in a suitable acquisition position. In addition, the mounting bracket may collide and shift, which will affect the normal use of the road geometric data detection system.

[0004] Therefore, in view of the above problems, this case proposes a road geometric data detection system. Summary of the Invention

[0005] The main purpose of the present invention is to provide a road geometric data detection system, which can effectively solve the technical problems in the background art.

[0006] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0007] A road geometric data detection system includes an equipment loading vehicle. The bottom of the equipment loading vehicle is connected with wheels through a frame, and a mounting bracket is arranged at the front position of the equipment loading vehicle. A gyroscope is fixedly connected to the middle position of the top of the mounting bracket, and laser distance sensors are fixedly connected to both sides of the top of the mounting bracket. A rotary encoder is fixedly installed at the hub of the wheel. A data detection and analysis system is installed on the top of the equipment loading vehicle. A positioning and calibration structure is connected between the mounting bracket and the equipment loading vehicle.

[0008] The positioning and calibration structure includes a limit baffle, a fixed seat, a first toothed plate, and a second toothed plate. The limit baffle is fixed to the inner side of the mounting bracket, the fixed seat is fixed to the bottom of the equipment loading vehicle, the first toothed plate is fixed to the inner side of the limit baffle, and the second toothed plate is arranged on the inner side of the limit baffle.

[0009] As a further aspect of the present invention, a connecting rod is penetratingly connected inside the fixed seat. The second toothed plate is fixed at the end of the connecting rod, and the second toothed plate meshes with the first toothed plate. A threaded pin is screwed into the fixed seat, and a threaded groove adapted to the threaded pin is provided inside the fixed seat.

[0010] As a further aspect of the present invention, the connecting rod is fixedly connected to the fixed seat through the threaded pin and the threaded groove, and the second toothed plate moves synchronously with the connecting rod.

[0011] As a further aspect of the present invention, a guiding frame is arranged outside the mounting bracket. The guiding frame is fixed to the bottom of the equipment loading vehicle. A connecting plate is fixedly connected to the outer surface of the mounting bracket, and the connecting plate is snapped into the guiding frame.

[0012] As a further aspect of the present invention, a sliding groove adapted to the connecting plate is provided inside the guiding frame. A locking pin is screwed into the end of the guiding frame, and the connecting plate is fixedly connected to the guiding frame through the locking pin.

[0013] As a further aspect of the present invention, a connecting column is fixedly connected to the front of the equipment loading vehicle. A buffer column is inserted into the connecting column, and a protective baffle is connected to the end of the buffer column.

[0014] As a further aspect of the present invention, an adapter head is connected inside the connecting column at one end of the buffer column. A buffer spring is connected between the adapter head and the connecting column, and the protective baffle is movably connected to the connecting column through the buffer column, the adapter head and the buffer spring.

[0015] As a further aspect of the present invention, a storage battery is installed inside the equipment loading vehicle, and a wire routing groove is provided inside the equipment loading vehicle.

[0016] As a further aspect of the present invention, the gyroscope and the laser distance measuring sensor are in the same horizontal direction, and the rotary encoder moves synchronously with the wheels.

[0017] As a further aspect of the present invention, the data detection and analysis system includes a data processing lower computer, an analysis module, a processing module, an output module and a computer. The data processing lower computer, the analysis module, the processing module, the output module and the computer are sequentially communicatively connected. Data transmission cables are connected between the data processing lower computer and the gyroscope, the laser distance measuring sensor and the rotary encoder.

[0018] The beneficial effects of the present invention are as follows:

[0019] 1. By cooperating the gyroscope, laser ranging sensor, rotary encoder with the data detection and analysis system, the transverse and longitudinal slopes and the radius of curvature of the road surface can be detected quickly, efficiently and accurately, improving the detection efficiency of the road geometric data detection system;

[0020] 2. By setting the positioning and calibration structure, the sensor mounting bracket of the data detection system can be positioned and calibrated to ensure that the mounting bracket is in the correct installation position, avoiding the situation of the mounting bracket swinging, and improving the accuracy of the data detection system;

[0021] 3. By setting the guide frame, connecting plate and locking pin, the elongation of the mounting bracket can be adjusted, and the sensor of the data detection system can be driven to reach the appropriate acquisition position;

[0022] 4. By setting the connecting column, buffer column and protective baffle, limit protection can be carried out on the outside of the mounting bracket, and the situation of the mounting bracket colliding and shifting can be avoided. Description of the Drawings

[0023] Figure 1 It is a schematic diagram of the overall structure of a road geometric data detection system of the present invention;

[0024] Figure 2 It is an axonometric structure schematic diagram of a road geometric data detection system of the present invention;

[0025] Figure 3 It is a schematic diagram of the positioning and calibration structure of a road geometric data detection system of the present invention;

[0026] Figure 4 It is a connection schematic diagram of the guide frame, connecting plate and locking pin of a road geometric data detection system of the present invention;

[0027] Figure 5 It is a connection schematic diagram of the connecting column, buffer column and protective baffle of a road geometric data detection system of the present invention;

[0028] Figure 6 It is a system block diagram of the data detection and analysis system of a road geometric data detection system of the present invention.

[0029] In the figure: 1. Equipment loading vehicle; 2. Wheel; 3. Mounting bracket; 4. Gyroscope; 5. Laser ranging sensor; 6. Rotary encoder; 7. Data detection and analysis system; 8. Positioning and calibration structure; 9. Limit baffle; 10. Fixed seat; 11. First toothed plate; 12. Connecting rod; 13. Second toothed plate; 14. Threaded pin; 15. Threaded groove; 16. Guide frame; 17. Connecting plate; 18. Chute; 19. Locking pin; 20. Connecting column; 21. Buffer column; 22. Protective baffle; 23. Adapter; 24. Buffer spring. Detailed implementation mode

[0030] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation modes.

[0031] As Figures 1-6 shown, a road geometric data detection system includes an equipment loading vehicle 1. The bottom of the equipment loading vehicle 1 is connected with wheels 2 through a frame, and an installation bracket 3 is arranged at the front of the equipment loading vehicle 1. A gyroscope 4 is fixedly connected to the middle position of the top of the installation bracket 3, and laser ranging sensors 5 are fixedly connected to both sides of the top of the installation bracket 3. A rotary encoder 6 is fixedly installed at the hub of the wheel 2. A data detection and analysis system 7 is installed on the top of the equipment loading vehicle 1. A positioning and calibration structure 8 is connected between the installation bracket 3 and the equipment loading vehicle 1;

[0032] The positioning and calibration structure 8 includes a limit baffle 9, a fixed seat 10, a first toothed plate 11, and a second toothed plate 13. The limit baffle 9 is fixed to the inner side of the installation bracket 3, the fixed seat 10 is fixed to the bottom of the equipment loading vehicle 1, the first toothed plate 11 is fixed to the inner side of the limit baffle 9, and the second toothed plate 13 is arranged on the inner side of the limit baffle 9.

[0033] In this embodiment, a connecting rod 12 penetrates through the fixed seat 10, the second toothed plate 13 is fixed to the end of the connecting rod 12, and the second toothed plate 13 meshes with the first toothed plate 11. A threaded pin 14 is screwed into the fixed seat 10, and a threaded groove 15 adapted to the threaded pin 14 is opened in the fixed seat 10.

[0034] Push the connecting rod 12, the connecting rod 12 drives the second toothed plate 13 to approach the first toothed plate 11. When the second toothed plate 13 meshes with the first toothed plate 11, the limit baffle 9, the second toothed plate 13 and the first toothed plate 11 cooperate to perform positioning and calibration inside the installation bracket 3, which can prevent the installation bracket 3 from swinging.

[0035] In this embodiment, the connecting rod 12 is fixedly connected to the fixed seat 10 through the threaded pin 14 and the threaded groove 15, and the second toothed plate 13 moves synchronously with the connecting rod 12.

[0036] After positioning and calibration, the connecting rod 12 is fixed to the fixed seat 10 through the threaded pin 14 and the threaded groove 15 to relatively fix the positioning and calibration structure 8.

[0037] In this embodiment, a guiding frame 16 is arranged on the outer side of the installation bracket 3. The guiding frame 16 is fixed to the bottom of the equipment loading vehicle 1. A connecting plate 17 is fixedly connected to the outer surface of the installation bracket 3, and the connecting plate 17 is clamped into the guiding frame 16.

[0038] Pull the mounting bracket 3. The mounting bracket 3 drives the connecting plate 17 to move inside the guide frame 16, and the elongation of the mounting bracket 3 can be adjusted.

[0039] In this embodiment, a chute 18 adapted to the connecting plate 17 is provided inside the guide frame 16. A locking pin 19 is screwed into the end of the guide frame 16. The connecting plate 17 is fixedly connected to the guide frame 16 through the locking pin 19.

[0040] Fix the connecting plate 17 to the guide frame 16 through the locking pin 19 to fix the mounting bracket 3 after adjusting the elongation.

[0041] In this embodiment, a connecting column 20 is fixedly connected to the front of the vehicle head of the equipment loading vehicle 1. A buffer column 21 is inserted into the connecting column 20. A protective baffle 22 is connected to the end of the buffer column 21. One end of the buffer column 21 and inside the connecting column 20 is connected with an adapter 23. A buffer spring 24 is connected between the adapter 23 and the connecting column 20. The protective baffle 22 is movably connected to the connecting column 20 through the buffer column 21, the adapter 23 and the buffer spring 24.

[0042] When the equipment loading vehicle 1 is collided, the protective baffle 22 performs primary buffering. At the same time, the protective baffle 22 moves relative to the connecting column 20 through the buffer column 21, the adapter 23 and the buffer spring 24 for secondary buffering, which can perform limit protection outside the mounting bracket 3 and can prevent the mounting bracket 3 from colliding and shifting.

[0043] In this embodiment, a storage battery is installed inside the equipment loading vehicle 1, and a wire trough is provided inside the equipment loading vehicle 1.

[0044] The storage battery supplies power to the entire road geometric data detection system, and the wire trough can facilitate the routing of data transmission cables.

[0045] In this embodiment, the gyroscope 4 and the laser distance sensor 5 are in the same horizontal direction, and the rotary encoder 6 moves synchronously with the wheel 2.

[0046] The laser distance sensor 5 measures the vertical distance to the road surface. The computer software calculates the lateral inclination angle between the equipment loading vehicle 1 and the road surface according to the distance between the laser distance sensors 5. The gyroscope 4 measures the lateral and longitudinal angles between the equipment loading vehicle 1 and the horizontal plane and the deflection angle of the heading within a certain distance. The rotary encoder 6 collects the number of pulses obtained by the rotation of the wheel 2, and then accurately measures the driving distance and the current vehicle speed of the vehicle.

[0047] In this embodiment, the data detection and analysis system 7 includes a data processing lower computer, an analysis module, a processing module, an output module, and a computer. The data processing lower computer, the analysis module, the processing module, the output module, and the computer are sequentially connected for communication. Data transmission cables are connected between the data processing lower computer and the gyroscope 4, the laser range finder 5, and the rotary encoder 6 respectively.

[0048] The data processing lower computer processes the collected sensor signals and transmits them to the computer. Calculations are performed through the data acquisition and processing software in the computer, and the required data is output and saved.

[0049] It should be noted that the present invention is a road geometric data detection system. When in use, the equipment loading vehicle 1 is moved to the road to be detected. The connecting rod 12 is pushed, and the connecting rod 12 drives the second toothed plate 13 to approach the first toothed plate 11. When the second toothed plate 13 meshes with the first toothed plate 11, the limit baffle 9, the second toothed plate 13, and the first toothed plate 11 cooperate to perform positioning and calibration inside the mounting bracket 3, which can prevent the mounting bracket 3 from swinging. After positioning and calibration, the connecting rod 12 is fixed to the fixed seat 10 through the threaded pin 14 and the threaded groove 15 to relatively fix the positioning and calibration structure 8.

[0050] The mounting bracket 3 is pulled, and the mounting bracket 3 drives the connecting plate 17 to move inside the guiding frame 16, which can adjust the elongation of the mounting bracket 3. The connecting plate 17 is fixed to the guiding frame 16 through the locking pin 19 to fix the mounting bracket 3 after adjusting the elongation, which can drive the sensors of the data detection system to reach the appropriate acquisition position.

[0051] The equipment loading vehicle 1 is driven. The laser range finder 5 measures the vertical distance to the road surface. The computer software calculates the lateral inclination angle between the equipment loading vehicle 1 and the road surface according to the distance between the laser range finders 5. The gyroscope 4 measures the lateral and longitudinal angles between the equipment loading vehicle 1 and the horizontal plane and the deflection angle of the heading within a certain distance. The rotary encoder 6 collects the number of pulses obtained by the rotation of the wheels 2, and then accurately measures the vehicle driving distance and the current vehicle speed. The data processing lower computer processes the collected sensor signals and transmits them to the computer. Calculations are performed through the data acquisition and processing software in the computer, and the required data is output and saved.

[0052] When the equipment loading vehicle 1 is collided, the protective baffle 22 performs preliminary buffering. At the same time, the protective baffle 22 moves relative to the connecting column 20 through the buffer column 21, the connecting head 23, and the buffer spring 24 for secondary buffering, which can perform limit protection outside the mounting bracket 3 and can prevent the mounting bracket 3 from colliding and shifting.

[0053] The above has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A road geometric data detection system, characterized in that: It includes an equipment loading vehicle (1), wheels (2) are connected to the bottom of the equipment loading vehicle (1) through a frame, and a mounting bracket (3) is arranged at the front position of the equipment loading vehicle (1). A gyroscope (4) is fixedly connected to the middle position of the top of the mounting bracket (3), and laser range sensors (5) are fixedly connected to both sides of the top of the mounting bracket (3) near the two sides. A rotary encoder (6) is fixedly installed at the hub of the wheel (2). A data detection and analysis system (7) is installed on the top of the equipment loading vehicle (1). A positioning and calibration structure (8) is connected between the mounting bracket (3) and the equipment loading vehicle (1); The positioning and calibration structure (8) includes a limit baffle (9), a fixed seat (10), a first toothed plate (11), and a second toothed plate (13). The limit baffle (9) is fixed to the inner side of the mounting bracket (3), the fixed seat (10) is fixed to the bottom of the equipment loading vehicle (1), the first toothed plate (11) is fixed to the inner side of the limit baffle (9), and the second toothed plate (13) is arranged on the inner side of the limit baffle (9).

2. The road geometric data detection system according to claim 1, wherein: A connecting rod (12) penetrates through the interior of the fixed seat (10). The second toothed plate (13) is fixed to the end of the connecting rod (12), and the second toothed plate (13) meshes with the first toothed plate (11). A threaded pin (14) is screwed into the interior of the fixed seat (10), and a threaded groove (15) adapted to the threaded pin (14) is provided in the interior of the fixed seat (10).

3. The road geometric data detection system according to claim 2, characterized in that: The connecting rod (12) is fixedly connected to the fixed seat (10) through the threaded pin (14) and the threaded groove (15), and the second toothed plate (13) moves synchronously with the connecting rod (12).

4. The road geometric data detection system according to claim 1, characterized in that: A guide frame (16) is arranged on the outer side of the mounting bracket (3). The guide frame (16) is fixed to the bottom of the equipment loading vehicle (1). A connecting plate (17) is fixedly connected to the outer surface of the mounting bracket (3), and the connecting plate (17) is inserted into the interior of the guide frame (16).

5. The road geometry data detection system according to claim 4, characterized in that: A chute (18) adapted to the connecting plate (17) is provided in the interior of the guide frame (16). A locking pin (19) is screwed into the end of the guide frame (16), and the connecting plate (17) is fixedly connected to the guide frame (16) through the locking pin (19).

6. The road geometry data detection system according to claim 1, characterized in that: A connecting column (20) is fixedly connected to the front of the equipment loading vehicle (1). A buffer column (21) is inserted into the interior of the connecting column (20), and a protective baffle (22) is connected to the end of the buffer column (21).

7. The road geometric data detection system according to claim 6, characterized in that: One end of the buffer column (21) and inside the connecting column (20) is connected with an adapter head (23). A buffer spring (24) is connected between the adapter head (23) and the connecting column (20). The protective baffle (22) is movably connected to the connecting column (20) through the buffer column (21), the adapter head (23), and the buffer spring (24).

8. A road geometric data detection system according to claim 1, characterized in that: A storage battery is installed inside the equipment loading vehicle (1), and a wire groove is provided inside the equipment loading vehicle (1).

9. A road geometric data detection system according to claim 1, characterized in that: The gyroscope (4) and the laser ranging sensor (5) are in the same horizontal direction, and the rotary encoder (6) moves synchronously with the wheel (2).

10. A road geometric data detection system according to claim 1, characterized in that: The data detection and analysis system (7) includes a data processing lower computer, an analysis module, a processing module, an output module, and a computer. The data processing lower computer, the analysis module, the processing module, the output module, and the computer are sequentially connected for communication. Data transmission cables are connected between the data processing lower computer and the gyroscope (4), the laser ranging sensor (5), and the rotary encoder (6).

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