Road inspection data acquisition and processing device

Abstract

The utility model relates to the technical field of road inspection, and discloses a road inspection data acquisition and processing device, which comprises a three-dimensional geological radar assembly and an inspection vehicle, an adjusting assembly is arranged at one end of the three-dimensional geological radar assembly, and a Doppler range finder is arranged at the tail end of the adjusting assembly. The three-dimensional geological radar assembly comprises a trailer body, a geological radar body, a trailer support and a vertical frame, the geological radar body is horizontally installed in the trailer body, the vertical frame is installed on the outer wall of one end of the trailer body, and one end of the trailer support is installed on the outer wall of the side, close to the vertical frame, of the geological radar body. And the trailer bracket and the tail of the inspection vehicle are mounted in a hanging manner. The front end of the device is provided with a detection wheel system with a contact optimization function, an integrated displacement sensor and a pressure sensor, so that the contact pressure of a detection end to the ground can be dynamically positioned, the attitude of a test bottom end plane of the geological radar is adjusted, stable coupling under a complex terrain is ensured, and a stable detection result is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to road inspection field, more specifically, it relates to a road inspection data acquisition and processing device. BACKGROUND

[0002] Periodic road inspection can timely find the safety hidden danger of road, road cavity, road cavity, pavement crack, pavement damage and the like, if these hidden dangers are not handled in time, can constitute the threat to the driving safety, even lead to the occurrence of traffic accident, through the inspection, can understand the use condition of road and its facilities, timely find the wear and tear, aging and the like of road, so that timely maintenance and maintenance, keep the good state of road.

[0003] If the periodic road inspection equipment exists stone, gravel or other obstacles in the inspection process, still has part of the steep slope, water area or obstacle area cannot guarantee the effective coupling of antenna and ground, can lead to the antenna and ground not to be in full contact, thereby influence signal transmission. UTILITARIAN CONTENT

[0004] The utility model provides a kind of road inspection data acquisition and processing device, solve the technical problem in relevant art.

[0005] The utility model provides a kind of road inspection data acquisition and processing device, including three-dimensional geologic radar assembly and inspection car, adjusting assembly is equipped in one end of three-dimensional geologic radar assembly, Doppler range finder is equipped on the end of adjusting assembly, three-dimensional geologic radar assembly includes trailer body, geologic radar body, trailer support and vertical frame, geologic radar body is horizontally installed to trailer body inside, vertical frame is installed to the outer wall of one end of trailer body, one end of trailer support is installed on the outer wall of the side of geologic radar body close to vertical frame, and trailer support and the tail of inspection car are installed by hanging connection;

[0006] Auxiliary detection assembly is installed in one end of three-dimensional geologic radar assembly close to vehicle, and the detection end of auxiliary detection assembly is placed to ground, and auxiliary detection assembly includes connecting support, signal connector and detection wheel unit, connecting support is movably connected on the outer side wall of trailer body, and a plurality of groups of detection wheel units are arranged between the connecting of both sides, wherein detection wheel unit includes connecting frame, connecting shaft, support spring, detection wheel body and displacement sensor, the vertical section of connecting frame is U-shaped structure, support spring is installed on the bottom end outer wall of both ends of connecting frame, the shaft end of connecting shaft is equipped with connecting piece, the end of connecting piece is connected to the bottom end of support spring, detection wheel body is installed on connecting shaft, and displacement sensor is installed on the top end inner side wall of connecting frame;

[0007] The outer wall of the detection wheel body is provided with a pressure sensor, and the signal end of the pressure sensor is also connected to the signal connector through electric signal connection.

[0008] Further, the adjusting assembly is slidably installed on the vertical frame, the adjusting assembly comprises a horizontal support, an electric cylinder and a cross support, one end of the horizontal support is slidably connected to the vertical frame, the cross support is movably connected between the horizontal support and the trailer body, the electric cylinder is installed on the trailer body, and a movable end of the electric cylinder is movably connected to one side of the cross support.

[0009] Further, the data acquisition room is arranged in the vehicle body of the inspection vehicle for data relay processing, and the mobile processing terminal is arranged in the data acquisition room.

[0010] Further, the front camera is installed above the driving end of the vehicle body of the inspection vehicle, and the front camera is used for detecting the road surface information in front of the inspection vehicle.

[0011] Further, the detection end of the displacement sensor is located on the same vertical plane as the detection wheel body, the signal end of the displacement sensor is connected to the signal connector through electric signal connection, and the signal connector is connected to the mobile processing terminal in the data acquisition room through electric signal connection.

[0012] Further, the RTK assembly is installed on the outer wall of one side of the vertical frame, the RTK assembly is used for positioning and recording vehicle trajectory data, and the signal end of the RTK assembly is connected to the mobile processing terminal in the data acquisition room through electric signal connection.

[0013] Further, the rear camera is installed on the outer wall of the top end of the vertical frame, and the rear camera is used for collecting the road information behind the inspection vehicle.

[0014] Further, the fixed frame is arranged on the outer wall of the side of the vertical frame close to the inspection vehicle, the fixed frame is installed on the outer wall of the tail door of the inspection vehicle, auxiliary ropes are connected between the top end of the vertical frame and the top of the tail of the inspection vehicle, and the trailer support, the fixed frame and the auxiliary ropes are used for connecting the inspection vehicle and the three-dimensional geological radar assembly.

[0015] The beneficial effects of the utility model lie in:

[0016] The device is provided with a contact optimization at the front end, a detection wheel system integrating a displacement sensor and a pressure sensor, a movable detection end for dynamically positioning and detecting the contact pressure of the ground, and an adjusting attitude of the test ground plane of the geological radar, so that stable coupling under complex terrain is ensured, and the accuracy of stable detection results is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1This is a schematic diagram of the usage structure of a road inspection data acquisition and processing device proposed in this utility model;

[0018] Figure 2 This is a schematic diagram of the axonometric structure of a road inspection data acquisition and processing device proposed in this utility model;

[0019] Figure 3 This is a structural schematic diagram from another perspective of the road inspection data acquisition and processing device proposed in this utility model;

[0020] Figure 4 This is the utility model Figure 3 A schematic diagram of the detection wheel unit.

[0021] In the diagram: 100, Inspection vehicle; 200, Data acquisition room; 300, Front camera; 400, Rear camera; 500, 3D ground-penetrating radar component; 510, Trailer body; 520, Ground-penetrating radar body; 530, Trailer support; 540, Vertical frame; 550, Auxiliary rope; 600, Doppler rangefinder; 700, Adjustment component; 710, Horizontal support; 720, Electric cylinder; 730, Cross support; 800, Auxiliary detection component; 810, Connecting bracket; 820, Signal connector; 830, Detection wheel unit; 831, Connecting frame; 832, Connecting shaft; 833, Support spring; 834, Detection wheel body; 835, Displacement sensor; 900, RTK component. Detailed Implementation

[0022] The subject matter described herein will now be discussed with reference to exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and implement the subject matter described herein, and changes may be made to the function and arrangement of the elements discussed without departing from the scope of this specification. Various processes or components may be omitted, substituted, or added as needed in the examples. Furthermore, features described in some examples may be combined in other examples.

[0023] like Figures 1-4 As shown, a road inspection data acquisition and processing device is used by towing an inspection vehicle 100. A data acquisition room 200 for data transfer and processing is set in the body of the inspection vehicle 100. A mobile processing terminal is set in the data acquisition room 200. A front-facing camera 300 is installed above the driving end of the inspection vehicle 100. The front-facing camera 300 is used to detect the road surface information in front of the inspection vehicle 100.

[0024] The device comprises a three-dimensional geological radar assembly 500, an adjusting assembly 700 is arranged at one end of the three-dimensional geological radar assembly 500, and a Doppler range finder 600 is arranged at the end of the adjusting assembly 700, the Doppler range finder 600 is used for monitoring displacement changes of the rear ground surface, and an auxiliary detection assembly 800 is arranged at the end of the three-dimensional geological radar assembly 500 close to the vehicle, and a detection end of the auxiliary detection assembly 800 is placed on the ground surface;

[0025] The three-dimensional geological radar assembly 500 comprises a trailer body 510, a geological radar body 520, a trailer support 530 and a vertical frame 540, the geological radar body 520 is horizontally arranged in the trailer body 510, the vertical frame 540 is arranged on the outer wall of one end of the trailer body 510, one end of the trailer support 530 is arranged on the outer wall of one side of the geological radar body 520 close to the vertical frame 540, and the trailer support 530 and the tail of the inspection vehicle 100 are connected through the hanging connection;

[0026] It should be noted that the electric adjusting members are arranged at the four corners of the connection between the trailer body 510 and the geological radar body 520, and the electric adjusting members comprise but are not limited to micro pneumatic cylinders, and the moving ends of the micro pneumatic cylinders are electrically connected with the auxiliary detection assembly 800;

[0027] The adjusting assembly 700 is slidably arranged on the vertical frame 540, the adjusting assembly 700 comprises a horizontal support 710, an electric cylinder 720 and a cross support 730, one end of the horizontal support 710 is slidably connected with the vertical frame 540, the cross support 730 is movably connected between the horizontal support 710 and the trailer body 510, the electric cylinder 720 is arranged on the trailer body 510, and the moving end of the electric cylinder 720 is movably connected with one side of the cross support 730;

[0028] The auxiliary detection assembly 800 comprises a connecting support 810, a signal connector 820 and a detection wheel unit 830, the connecting support 810 is movably connected with the outer wall of the trailer body 510, a plurality of groups of the detection wheel units 830 are arranged between the two connecting supports, wherein the detection wheel unit 830 comprises a connecting frame 831, a connecting shaft 832, a supporting spring 833, a detection wheel body 834 and a displacement sensor 835, the vertical section of the connecting frame 831 is in a U-shaped structure, the supporting spring 833 is arranged on the bottom end of the two ends of the connecting frame 831, the shaft end of the connecting shaft 832 is provided with a connecting piece, the end of the connecting piece is connected with the bottom end of the supporting spring 833, the detection wheel body 834 is arranged on the connecting shaft 832, the displacement sensor 835 is arranged on the top end of the inner wall of the connecting frame 831, the detection end of the displacement sensor 835 is located in the same vertical plane as the detection wheel body 834, the signal end of the displacement sensor 835 is electrically connected with the signal connector 820, and the signal connector 820 is electrically connected with the mobile processing terminal in the data acquisition room 200;

[0029] It also needs to be added that the outer wall of the detection wheel body 834 is provided with a pressure sensor, and the signal end of the pressure sensor is also connected to the signal connector 820 through electrical connection, and the signal connector 820 is connected to the mobile processing terminal in the data acquisition room 200 through electrical connection;

[0030] Among them, the working principle of the pressure sensor and the displacement sensor 835 are both prior art;

[0031] An RTK component 900 (Real-Time Kinematic component) is installed on one side of the outer wall of the vertical frame 540, which refers to a real-time dynamic differential positioning device, which is mainly applied to various fields requiring high-precision position information, and is used for positioning and recording vehicle trajectory data. The signal end of the RTK component 900 is connected to the mobile processing terminal in the data acquisition room 200 through electrical connection;

[0032] A rear camera 400 is installed on the top outer wall of the vertical frame 540, which is used to collect road information behind the inspection vehicle 100;

[0033] A fixing frame is provided on the outer wall of the vertical frame 540 close to the inspection vehicle 100, which is installed on the outer wall of the tail door of the inspection vehicle 100, and an auxiliary rope 550 is connected between the top of the vertical frame 540 and the top of the tail of the inspection vehicle 100. The tow bracket 530, the fixing frame and the auxiliary rope 550 are used to stably connect the inspection vehicle 100 and the three-dimensional geological radar component 500.

[0034] The working principle of the road inspection data acquisition and processing device for road inspection is as follows:

[0035] The three-dimensional geological radar component 500 detects the damage under the road through the geological radar body 520, which adopts Ground Penetrating Radar (GPR) technology. The following is a brief description of its working principle:

[0036] Transmit electromagnetic waves: The geological radar body 520 transmits high-frequency electromagnetic waves to the underground through the transmitting antenna;

[0037] Receive electromagnetic waves: When electromagnetic waves propagate in the underground medium, they are reflected or scattered when they encounter interfaces with different electrical properties. The reflected or scattered electromagnetic waves are received by the receiving antenna;

[0038] Generate radar map: Generate a radar map according to the received electromagnetic wave signals;

[0039] Data analysis: According to the characteristics of the waveform, amplitude intensity and time change of the electromagnetic wave in the radar map, the spatial position, structure, form and burial depth of the underground medium can be inferred.

[0040] It should be noted that the auxiliary detection assembly 800 in the road inspection work, when encountering abnormal road surface, the ground penetrating radar body 520 in the working time, there is a problem of poor coupling between the antenna and the ground;

[0041] For example, the abnormal road surface is as follows: the road surface has protrusions, pits or other obstacles, which will cause the antenna to fail to fully contact the ground, thereby affecting signal transmission;

[0042] When the above problems occur, the detection wheel unit 830 of the auxiliary detection assembly 800 will move vertically upward when encountering protrusions, and the entire detection wheel body 834 will compress the supporting spring 833 when encountering the protrusion position, and the detection distance between the top wheel surface of the detection wheel body 834 and the displacement sensor 835 will be reduced. At this time, record the displacement signal and the position of the detection wheel unit 830, if the road surface protrusion is a slope, a group of detection wheel units 830 will have displacement signals;

[0043] At this time, when encountering pits, the detection wheel body 834 will move vertically downward, the supporting spring 833 will be elongated, and the detection distance between the top wheel surface of the detection wheel body 834 and the displacement sensor 835 will be increased. At this time, record the displacement signal and the position of the detection wheel unit 830, if the road surface pit is a slope, a group of detection wheel units 830 will have displacement signals;

[0044] The position of the displacement signal is superimposed on the radar monitoring diagram of the ground penetrating radar body 520, and the abnormality of the radar monitoring diagram at the position is marked, and the classification result of the abnormality is given;

[0045] Then the detection results of each abnormality are re-detected to avoid the problem of poor coupling between the antenna and the ground caused by the existence of protrusions, pits or other obstacles on the road surface. Because of the poor coupling phenomenon, it will cause many hidden problems of the spatial position, structure, form and burial depth in the local detection result on the radar monitoring diagram to be inaccurate;

[0046] At the same time, the rear camera 400 will supplement the detection of the road surface information, and at the same time, the height of the horizontal support 710 is adjusted, which is deformed by the electric cylinder 720 driving the cross support 730, and the monitoring range of the Doppler range finder 600 on it changes, which is used to detect the driving information and road information behind it also changes, which improves the secondary supplement of the detection of the rear camera 400. Road surface information improves the image acquisition of road surface information;

[0047] At the same time, when the position where the antenna is not well coupled with the ground due to the existence of bumps, pits or other obstacles on the road surface is detected, the attitude of the ground penetrating radar body 520 is adjusted by the electric adjusting member, so that the test end of the ground penetrating radar body 520 is better attached to the road surface, and the ground penetrating radar body 520 is better coupled with the road.

[0048] Through the above information, while monitoring the underground cavity, the algorithm is used to intelligently identify the surface diseases (for example: cracks, pits, peeling, ruts, bulges, etc.), and record the position (coordinates), time, disease type and photos of the diseases, and send them to the "city road safety hidden danger management system" connected with the device. Such images can bring great convenience to actual road maintenance work, reducing repetitive work and labor costs; at the same time, the accumulated surface disease database is used for deep learning of the algorithm, and the identification algorithm is continuously optimized to cope with surface disease identification work in various complex scenarios.

[0049] The above describes the embodiments of the present embodiment, but the present embodiment is not limited to the specific embodiments described above, and the specific embodiments described above are only illustrative but not limiting, and those skilled in the art can make many forms under the inspiration of the present embodiment, which all belong to the protection of the present embodiment.

Claims

1. A road inspection data collection and processing device, characterized by comprising: The utility model provides a kind of three-dimensional geological radar component (500) and inspection vehicle (100), adjusting component (700) is equipped in one end of three-dimensional geological radar component (500), three-dimensional geological radar component (500) includes trailer body (510), geological radar body (520), trailer support (530) and vertical frame (540), geological radar body (520) is horizontally installed into trailer body (510), vertical frame (540) is installed to the outer wall of one end of trailer body (510), one end of trailer support (530) is installed on the outer wall of the side of geological radar body (520) close to vertical frame (540), and trailer support (530) is hung and is installed between the tail of inspection vehicle (100); Auxiliary detection component (800) is installed in the end of three-dimensional geological radar component (500) close to vehicle, and auxiliary detection component (800) includes connecting bracket (810), signal connector (820) and detection wheel unit (830), connecting bracket (810) is movably connected on the outer side wall of trailer body (510), and a plurality of detection wheel units (830) are arranged between the connecting of both sides; Detection wheel unit (830) includes connecting frame (831), connecting shaft (832), support spring (833), detection wheel body (834) and displacement sensor (835), connecting frame (831) is U-shaped structure, support spring (833) is installed on the outer wall of the bottom end of both ends of connecting frame (831), the shaft end of connecting shaft (832) is provided with connecting piece, the tail end of connecting piece is connected to the bottom end of support spring (833), detection wheel body (834) is installed on connecting shaft (832), and displacement sensor (835) is installed on the inner side wall of the top end of connecting frame (831); Pressure sensor is arranged on the outer wall of detection wheel body (834), and the signal end of pressure sensor is connected to signal connector (820) by electric signal, and electrically connected between the action end of electrically adjustable part and auxiliary detection component (800) is arranged at the four corners of the connecting place of trailer body (510) and geological radar body (520).

2. The road inspection data collection and processing device according to claim 1, wherein, Adjusting component (700) is slidably installed on vertical frame (540), adjusting component (700) includes horizontal support (710), electric cylinder (720) and cross support (730), one end of horizontal support (710) is slidably connected on vertical frame (540), cross support (730) is movably connected between horizontal support (710) and trailer body (510), electric cylinder (720) is installed on trailer body (510), and the movable end of electric cylinder (720) is movably connected with one side of cross support (730), doppler range finder (600) is arranged on the tail end of adjusting component (700).

3. The road inspection data collection and processing device according to claim 2, wherein, Data acquisition room (200) for data relay processing is arranged in the vehicle body of inspection vehicle (100), and mobile processing terminal is arranged in data acquisition room (200).

4. The road inspection data collection and processing device according to claim 3, wherein, The front camera (300) is installed above the running end of the vehicle body of the inspection vehicle (100), and is used to detect the road surface information in front of the inspection vehicle (100).

5. The road inspection data collection and processing device of claim 4, wherein, The detection end of the displacement sensor (835) is located in the same vertical plane as the detection wheel body (834), the signal end of the displacement sensor (835) is connected to the signal connector (820) through electrical connection, and the signal connector (820) is connected to the mobile processing terminal in the data acquisition room (200) through electrical connection.

6. The road inspection data collection and processing device according to claim 5, wherein, The RTK assembly (900) is installed on one side of the outer wall of the vertical frame (540), and is used to position and record vehicle trajectory data.

7. The road inspection data collection and processing device of claim 6, wherein, The rear camera (400) is installed on the top end of the outer wall of the vertical frame (540), and is used to collect the road information behind the inspection vehicle (100).

8. The road inspection data collection and processing device according to claim 7, wherein, The fixed frame is arranged on the outer wall of the vertical frame (540) close to the inspection vehicle (100), the fixed frame is installed on the outer wall of the tail door of the inspection vehicle (100), the auxiliary rope (550) is connected between the top end of the vertical frame (540) and the top of the tail of the inspection vehicle (100), and the towing support (530), the fixed frame and the auxiliary rope (550) are used to connect the inspection vehicle (100) and the three-dimensional geological radar assembly (500).

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