CN206019637U - A vehicle-mounted rapid detection system for highway tunnels - Google Patents

Abstract

The utility model discloses a vehicle-mounted highway tunnel rapid detection system, which comprises a visual detection device, a vehicle-mounted fixing device and a vehicle speed measuring device; the vision acquisition device is used for acquiring tunnel lining images and section sizes and comprises a supporting rod, a support, a connecting piece, a scanner mounting rod and a scanner mounting bracket; the vehicle-mounted fixing device is used for mounting the vision acquisition device on the top of a vehicle and comprises an aligning platform, a rotary support, a positioning bolt, a supporting platform, a supporting seat and a supporting beam; the vehicle speed measuring device is used for acquiring vehicle running displacement and speed data in real time and triggering the camera and the three-dimensional scanner. The utility model discloses a vehicular highway tunnel short-term test system has that the suitability is strong, convenient to use, detects fast, image acquisition high quality and advantage such as with low costs, a great deal of technological problem when having solved current highway tunnel short-term test system and using.

Description

Vehicle-mounted highway tunnel rapid detection system

Technical Field

The utility model belongs to the technical field of on-vehicle detection, particularly, relate to a vehicular highway tunnel short-term test system.

Background

At present, tunnel detection needs closed traffic, and detection tasks are usually completed by means of an overhead working truck and manual or manual instruments. The method based on manual detection has low working efficiency, large personal subjective degree, high cost and large danger, and cannot meet the requirement of quick and accurate detection. Frequent inspection items are newly added in the technical specification for highway tunnel maintenance (JTG _ H12-2015), the detection frequency is greatly increased, and informatization means is encouraged to carry out tunnel structure detection, the traditional method for detecting the tunnel structure by manpower is difficult to meet the requirements, more importantly, disease information cannot be managed, and the development trend of diseases is difficult to count and analyze.

In recent years, with the increasing number of highway tunnels, the traditional manual method cannot meet the requirement of rapid and accurate detection. The computer vision-based detection method has the advantages of visual image, high speed, high precision, easy data storage and the like, and is widely applied to nondestructive detection of structures such as highway pavements, railway tunnels and the like. Compared with a highway pavement and a railway tunnel, the cross section of the highway tunnel is complex in shape, diversified in internal illumination conditions and numerous in disease types, the detection process is greatly influenced by traffic flow, driving tracks and multidimensional vibration of the environment, and the research difficulty of the vision technology in intelligent detection of the highway tunnel is increased.

The tunnel images of several existing products are shot synchronously by a plurality of cameras, the cameras, light sources, sensors and other devices are integrated into a huge vehicle-mounted system, the problems of complex system, large data volume, high manufacturing cost and the like exist, and the wide application of the technology in the field of rapid detection of highway tunnels is limited.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a visual detection system that simple structure, low cost, suitability are stronger to with its integration on the vehicle, form one set of convenient to use's vehicular intelligence tunnel short-term test system. The utility model adopts the technical scheme as follows:

a vehicle-mounted highway tunnel rapid detection system is characterized by comprising a visual detection device, a vehicle-mounted fixing device and a vehicle speed measuring device; wherein,

the vision acquisition device is used for acquiring tunnel lining images and section sizes and comprises a supporting rod, a support, a connecting piece, a scanner mounting rod and a scanner mounting bracket; the support rod forms a support frame structure through a connecting piece and a support and is used for bearing the digital camera, the laser light source and the three-dimensional scanner; the three groups of cameras are fixed on the surface of the support frame through T-shaped bolts, and the camera mounting plate consists of two L-shaped acute angle mounting plates and an obtuse angle mounting plate assembly; the scanner mounting rod is fixed on a support beam outside the frame through a T-shaped bolt, and the laser three-dimensional scanner is fixed on the mounting rod through a scanner bracket and an inner hexagon bolt;

the vehicle-mounted fixing device is used for installing the vision acquisition device on the top of a vehicle and comprises an aligning platform, a rotary support, a positioning bolt, a supporting platform, a supporting seat and a supporting beam; the aligning platform is used for adjusting the gravity center of the vision acquisition device to be always superposed with the center of the vehicle luggage rack, the upper surface of the aligning platform is connected with the lower surface of the supporting frame, and the lower surface of the aligning platform is connected with the rotary driving rotating ring; the rotary drive is used for realizing data acquisition of the vision acquisition device at two positions of 0 degree and 180 degrees, and a fixing ring of the rotary drive is connected with the upper surface of the supporting platform; four groups of mounting holes are arranged on the edge of the supporting platform, the supporting beam and the supporting plate are connected through the supporting seat, and all the parts are fixedly hinged on the vehicle luggage rack through the supporting beam;

the vehicle speed measuring device is used for acquiring vehicle running displacement and speed data in real time and triggering the camera and the three-dimensional scanner and comprises a fixed support, an outer clamping plate, an inner clamping plate, a clamping ring, a fixed rod, a guide rod, a fastening nut, a mounting front panel, an encoder shell, a mounting rear panel, a guide shaft, a flange and a nut column; a sensor is arranged in the encoder shell, the sensor is positioned and fixed by mounting a front plate and a rear plate on two sides, an extending shaft of the sensor is fixed with a flange through a guide shaft, and the flange is connected with a vehicle hub through a nut column on the flange and further rotates along with a wheel; one end of the guide rod is connected with the encoder shell through a fastening nut, the other end of the guide rod and the lower end of the fixing rod form a sliding pair, reciprocating motion along the direction of the central line of the rod is achieved, and the upper end of the fixing rod is connected with the L-shaped fixed support through a clamping ring and connected with a vehicle sheet metal through an inner clamping plate and an outer clamping plate.

Preferably, the included angle between two adjacent camera mounting plates is 30-60 degrees.

Preferably, the L-shaped acute angle mounting plate and the obtuse angle mounting plate assembly are formed by welding two plates, wherein the angle range of the acute angle clamping plate is 80-90 degrees, and the angle range of the obtuse angle clamping plate is 95-100 degrees.

Preferably, the aligning platform is used for adjusting the position of the vision acquisition device in the vehicle luggage rack, so that the vision acquisition device is always positioned at the center, and the offset between the geometric center and the gravity center is 0-30 mm.

Preferably, the support frame material is an aluminum alloy section, the camera mounting plate material is a magnesium aluminum alloy plate, the aligning platform, the support platform, the encoder shell and the flange are made of aluminum alloy, and the support beam material is an alloy steel hollow square tube.

The invention discloses a rapid detection solution for a highway tunnel, which integrates a digital camera, a laser light source, a laser three-dimensional scanner, an encoder and a mechanical device on a common off-road vehicle, can acquire parameters such as vehicle displacement, speed and the like in real time under the condition of normal speed running without changing the overall structure of the vehicle, and triggers equipment such as the camera, the laser three-dimensional scanner and the like to acquire images of a tunnel lining and three-dimensional sizes of a section.

Drawings

Figure 1 is the embodiment of the utility model provides an in-vehicle highway tunnel short-term test system three-dimensional structure chart.

Fig. 2 is the embodiment of the utility model provides an in vehicular highway tunnel short-term test system vision collection system schematic structure.

Fig. 3 is the embodiment of the utility model provides an among the vehicular highway tunnel rapid detection system braced frame structure size sketch map.

Fig. 4 is the camera mounting panel structure chart in the embodiment of the utility model provides an in vehicular highway tunnel short-term test system.

Fig. 5 is the utility model provides an acute angle splint structure size sketch map in vehicular highway tunnel short-term test system.

Fig. 6 is the utility model provides an obtuse angle splint structure size sketch map among vehicular highway tunnel short-term test system.

Figure 7 is the embodiment of the utility model provides an among the vehicular highway tunnel rapid detection system scanner supporting structure size sketch map.

Fig. 8 is the utility model provides an embodiment on-vehicle fixing device three-dimensional structure chart among vehicular highway tunnel rapid detection system.

Fig. 9 is the embodiment of the utility model provides an among the vehicular highway tunnel short-term test system aligning platform structure size sketch map.

Fig. 10 is a schematic diagram of the structural dimension of the supporting platform in the vehicle-mounted rapid detection system for the highway tunnel in the embodiment of the present invention.

Fig. 11 is the utility model provides an in the embodiment vehicle-mounted highway tunnel quick detection system vehicle speed measuring device three-dimensional structure chart.

Fig. 12 is the embodiment of the utility model provides an encoder shell structure and size schematic diagram in vehicular highway tunnel short-term test system.

The reference numbers in the figures are as follows:

marking	Name (R)	Marking	Name (R)	Marking	Name (R)
						1	Vision collection device	2	Vehicle-mounted fixing device	3	Vehicle speed measuring device
1-01	Support rod	1-02	Support base	1-03	Connecting piece
						1-04	Camera mounting plate	1-05	Scanner mounting rod	1-06	Scanner bracket
2-01	Aligning platform	2-02	Rotary support	2-03	Supporting platform
						2-04	Supporting seat	2-05	Supporting beam	2-06	Positioning bolt
3-01	Fixed support	3-02	Outer splint	3-03	Inner splint
						3-04	Snap ring	3-05	Fixing rod	3-06	Guide rod
3-07	Fastening nut	3-08	Mounting front panel	3-09	Encoder shell
						3-10	Mounting the rear panel	3-11	Guide shaft	3-12	Flange
3-13	Nut column	1-04-01	Acute angle splint	1-04-02	Obtuse angle splint
						1-04-03	Angle adjusting plate

Detailed Description

The following description is made in conjunction with the specific embodiments and the accompanying drawings, but the scope of the present invention is not limited thereto.

Fig. 1 shows the utility model discloses a vehicular highway tunnel short-term test system three-dimensional structure in preferred embodiment, including vision collection system (1), on-vehicle fixing device (2) and speed of a motor vehicle measuring device (3), with above-mentioned each part integration on toyota hanlanda cross country vehicle, wherein on-vehicle fixing device (2) are fixed with vehicle luggage rack.

Fig. 2 shows a three-dimensional structure of the vision acquisition device (1), which comprises a support rod (1-01), a support (1-02), a connecting piece (1-03), a camera mounting plate (1-04), a scanner mounting rod (1-05), a scanner bracket (1-06), and the like. A supporting rod (1-01) of an OB.10-4545W2 type European standard industrial aluminum profile is adopted to form a supporting frame through a connecting piece (1-03) and a support (1-02), and the structural dimension parameters are shown in figure 3.

Fig. 4 shows a three-dimensional structure of a camera mounting plate (1-04), which is composed of an acute angle clamping plate (1-04-01), an obtuse angle clamping plate (1-04-02) and an angle adjusting plate (1-04-03), wherein the parts are made of magnesium-aluminum alloy plates with the thickness of 8 mm. The structure size of the acute angle splint (1-04-01) is shown in figure 5, and the welding angle between the acute angle splint and the angle adjusting plate (1-04-03) is 80 degrees; the obtuse angle splint (1-04-02) has the structural size shown in figure 6, and the welding angle between the obtuse angle splint and the angle adjusting plate (1-04-03) is 100 degrees.

Fig. 7 shows the three-dimensional structure and structural dimensions of the scanner bracket (1-06), which is fixed on the inner side of the supporting frame by T-shaped bolts by using 7075T651 type aluminum profiles, and has a distance of 500mm from the bottom end of the supporting frame.

Fig. 8 shows a three-dimensional structure of the vehicle-mounted fixing device (2), which comprises a centering platform (2-01), a rotary support (2-02), a supporting platform (2-03), a supporting seat (2-04), a supporting beam (2-05) and a positioning bolt (2-06). The self-aligning platform (2-01) is made of magnesium-aluminum alloy plates, is 12mm thick and is of an eccentric structure, the distance between the center and the center of gravity is 12mm, mounting holes are formed in the eccentric structure, and the structure size is shown in fig. 9. The supporting platform (2-03) is made of magnesium-aluminum alloy plates, the thickness of the supporting platform is 12mm, mounting holes are formed in the supporting platform, and the structural size of the supporting platform is shown in figure 10. The type of the rotary support (2-02) is OB.10-4545W2, the rotary support is installed between the aligning platform (2-01) and the supporting platform (2-03) through bolts and corresponding mounting holes, and when the rotary support (2-02) rotates to 0 degree or 180 degrees, the aligning platform (2-01) and the supporting platform (2-03) are locked through the positioning bolts (2-06) and positioning holes in the corresponding platforms, so that the locking and positioning effects are achieved. The supporting beam (2-05) is an aluminum alloy square tube with the model of 30mm multiplied by 20mm, the upper end of the supporting beam is connected with the supporting platform (2-03) through a supporting seat (2-04), and the lower end of the supporting beam is fixedly connected with a vehicle luggage rack.

Fig. 11 shows a three-dimensional structure of the vehicle speed measuring device (3), which includes a fixing support (3-01), an outer clamp (3-02), an inner clamp (3-03), a snap ring (3-04), a fixing rod (3-05), a guide bar (3-06), a fastening nut (3-07), a mounting front panel (3-08), an encoder housing (3-09), a mounting rear panel (3-10), a guide shaft (3-11), a flange (3-12), a nut post (3-13), and the like. The encoder shell (3-09) is made of a zinc-aluminum alloy plate, the structural size of the encoder shell is as shown in figure 12, and the encoder shell is fixed with the encoder and the front (3-08) and rear (3-10) plates of the encoder through mounting holes in the encoder shell; the diameter of the guide rod (3-06) is phi 16mm, the length is 300mm, the diameter of the fixed rod (3-05) is phi 35mm, the length is 300mm, the guide rod is of a hollow structure, rolling steel balls are arranged on the inner wall of the hollow structure, the guide rod (3-06) and the fixed rod (3-05) form a moving pair, and the stroke range of the moving pair is 150 mm. The connection mode of the vehicle speed measuring device (3) and the vehicle body is as follows: the automobile inner clamping plate is connected with an automobile body metal plate through three regular hexagonal prisms with the inscribed circle diameter of phi 24mm and the length of 52mm (3-13), the inner clamping plate (3-03) is connected with an automobile body metal plate through an installation hole with the size of phi 6.5mm, and the outer clamping plate (3-02), the fixed support (3-01) and the clamping ring (3-04) are connected with the fixed rod (3-05).

The disclosed solution for rapid detection of highway tunnels integrates a digital camera, a laser light source, a laser three-dimensional scanner, an encoder and a mechanical device on a common off-road vehicle, can acquire parameters such as vehicle displacement and speed in real time under normal speed running without changing the overall structure of the vehicle, and triggers equipment such as the camera and the laser three-dimensional scanner to acquire tunnel lining images and section three-dimensional dimensions, and the like.

It is to be understood that the above embodiments are merely exemplary embodiments that have been employed to illustrate the principles of the present invention, and that the present invention is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.

Claims (1)

1. A vehicle-mounted highway tunnel rapid detection system is characterized by comprising a visual detection device, a vehicle-mounted fixing device and a vehicle speed measuring device; wherein,

the vision acquisition device is used for acquiring tunnel lining images and section sizes and comprises a supporting rod, a support, a connecting piece, a scanner mounting rod and a scanner mounting bracket; the support rod forms a support frame structure through a connecting piece and a support and is used for bearing the digital camera, the laser light source and the three-dimensional scanner; the three groups of cameras are fixed on the surface of the support frame through T-shaped bolts, and the camera mounting plate consists of two L-shaped acute angle mounting plates and an obtuse angle mounting plate assembly; the scanner mounting rod is fixed on a support beam outside the frame through a T-shaped bolt, and the laser three-dimensional scanner is fixed on the mounting rod through a scanner bracket and an inner hexagon bolt;

the vehicle-mounted fixing device is used for mounting the vision acquisition device on the top of a vehicle and comprises an aligning platform, a rotary support, a positioning bolt, a supporting platform, a supporting seat and a supporting beam; the aligning platform is used for adjusting the gravity center of the vision acquisition device to be always superposed with the center of the vehicle luggage rack, the upper surface of the aligning platform is connected with the lower surface of the supporting frame, and the lower surface of the aligning platform is connected with the rotary driving rotating ring; the rotary drive is used for realizing data acquisition of the vision acquisition device at two positions of 0 degree and 180 degrees, and a fixing ring of the rotary drive is connected with the upper surface of the supporting platform; four groups of mounting holes are arranged on the edge of the supporting platform, the supporting beam and the supporting plate are connected through the supporting seat, and all the parts are fixedly hinged on the vehicle luggage rack through the supporting beam;

the vehicle speed measuring device is used for acquiring vehicle running displacement and speed data in real time and triggering the camera and the three-dimensional scanner and comprises a fixed support, an outer clamping plate, an inner clamping plate, a clamping ring, a fixed rod, a guide rod, a fastening nut, a mounting front panel, an encoder shell, a mounting rear panel, a guide shaft, a flange and a nut column; a sensor is arranged in the encoder shell, the sensor is positioned and fixed by mounting a front plate and a rear plate on two sides, an extending shaft of the sensor is fixed with a flange through a guide shaft, and the flange is connected with a vehicle hub through a nut column on the flange and further rotates along with a wheel; one end of the guide rod is connected with the encoder shell through a fastening nut, the other end of the guide rod and the lower end of the fixing rod form a sliding pair, reciprocating motion along the direction of the central line of the rod is achieved, and the upper end of the fixing rod is connected with the L-shaped fixed support through a clamping ring and connected with a vehicle sheet metal through an inner clamping plate and an outer clamping plate.