All-in-one machine device for road disease identification

Abstract

The utility model relates to the technical field of image acquisition equipment calibration, and discloses an all-in-one machine device for road disease identification, which comprises detection equipment arranged on a mounting plate, a camera can shoot information of a road surface in front of a vehicle, and the detection equipment is provided with a GPS (Global Positioning System) for positioning. The camera is provided with a camera shell and a GPS positioning unit, shot picture information and GPS positioning information can be transmitted to the processing unit, a deep learning neural network algorithm capable of recognizing lane lines is arranged in the processing unit, the road lines serve as standards, pixel points are collected, specific disease position information is determined, and a dimming assembly is arranged in the camera shell and in front of a camera body. The dimming assembly is used for selecting the direction of polarized light entering the camera, the dimming assembly is composed of the polarizer and the rotating assembly, the rotating assembly can drive a polaroid in the polarizer to rotate, light reflection caused by intense illumination on a road is eliminated through rotation of the polarizer, and color extraction is more accurate.

Description

Technical Field

[0001] The utility model relates to the technical field of image acquisition equipment calibration, in particular to an integrated device for road disease identification. Background Art

[0002] The road defect recognition device is an important technological innovation. This device is usually integrated into the car and uses advanced visual AI technology and precise recognition algorithms to detect and identify various road defects in real time. Whether it is a tiny crack or a large pothole, the road defect recognition device can capture and record it quickly and accurately. This data can not only help drivers adjust their driving strategies in time and avoid potential safety risks, but also provide valuable feedback to automobile manufacturers and road management departments so that they can repair road defects in time and improve road quality and service life. Therefore, the road defect recognition device plays an important role in improving road safety, reducing vehicle failures, optimizing road maintenance, etc., and provides strong support for the sustainable development of the automobile industry.

[0003] Most of the road defect identification devices currently used on the market take pictures of road surface information, extract pixel points on the picture, analyze the color, and make judgments through algorithms. However, when there are puddles and other reflective objects on the road surface, they will reflect light and form bright white spots on the picture, which will affect the extraction of pixels. Therefore, if you want to ensure the accuracy of road surface information recognition during the road recognition process, you need to reduce the exposure of these reflected lights to avoid overexposure of the picture and inaccurate color recognition. Utility Model Content

[0004] (I) Technical problems solved: In view of the deficiencies of the prior art, the present invention provides an all-in-one device for road damage identification, which has the advantage of not being disturbed by ambient light during road information identification and solves the problem of light reflection during road identification.

[0005] (ii) Technical solution: In order to achieve the purpose of not being disturbed by ambient light during the above-mentioned road information recognition, the utility model provides the following technical solution: an all-in-one device for road disease recognition, comprising a detection device, wherein the detection device is arranged in the middle of a mounting plate, the detection device is composed of a camera housing and a light shield, the camera housing is provided with a camera capable of photographing the road information in front of the detection device, the mounting plate is installed on the roof of the vehicle, and the camera can photograph the road surface information in front of the vehicle, the detection device is provided with a GPS positioning system, and can transmit the photographed image information and the GPS positioning information to a processing unit, the processing unit has a system capable of identifying lane line pixels, a dimming component is provided in the camera housing and in front of the camera head, the dimming component is used to select the direction of polarized light entering the camera, the dimming component is composed of a polarizer and a rotating component, and the rotating component can drive the polarizer in the polarizer to rotate.

[0006] Preferably, the rotating assembly consists of a stator and a rotor, the rotor is in the shape of a ring, one side of the rotor is connected to a polarizing plate in the polarizer to drive the polarizer to rotate, the other side of the rotor is in contact with the stator, and a flange-shaped spring is provided on the contact surface, the stator is provided with evenly arranged trapezoidal protrusions on the contact surface with the rotor, a piezoelectric ceramic element is provided on the side of the stator away from the rotor, the piezoelectric ceramic element is connected to the circuit in the camera housing, and converts electrical energy into ultrasonic vibration for transmission.

[0007] Preferably, a buffer block made of rubber is provided between the stator and rotor and the camera housing, so that it is flexibly connected to the camera housing to prevent vibration from being transmitted to the camera housing and causing the camera shooting to become blurred. The buffer block made of rubber has greater damping and can absorb a large amount of vibration.

[0008] Preferably, the rotor is made of aluminum, which is lighter overall and easier to rotate, and is specially treated at the joints to increase its wear resistance. The exterior of the camera housing is painted white to reduce the impact of temperature rise due to sunlight on internal equipment and precision adjustment parts.

[0009] Preferably, two dimming components are provided in the camera housing, the distance between the two dimming components does not exceed 1 cm, and the distance of the dimming component closest to the camera is between 3-5 mm.

[0010] Preferably, a long slide groove is provided on the side of the camera housing, a slider driven to move by a motor is provided in the slide groove, a slot of the same size as the slider is provided on the side of the light shield, the light shield is sleeved outside the camera housing and is fixed by the slider passing through the slot on the side of the light shield; at the same time, the movement of the slider will drive the light shield to move, blocking the camera housing to change the amount of light entering the camera, and the exposure is adjusted by changing the amount of light entering, while preventing the equipment from being damaged by direct sunlight.

[0011] Preferably, the detection device is detachably connected to the mounting plate, and the overall height of the detection device does not exceed 50 cm.

[0012] (III) Beneficial effects: Compared with the prior art, the utility model provides an all-in-one device for road disease identification, which has the following beneficial effects:

[0013] 1. The all-in-one device for identifying road defects, because the detection device identifies the road line through pixels, and when there are water stains on the road surface and sunlight, it will emit strong reflections, and the reflections will be judged as white pixels in the subsequent image processing, which will interfere with the recognition of lane lines and the judgment of road defects. Therefore, in the detection device, a polarizer is arranged in front of the camera lens, and one of the polarizers of the polarizer is fixed in the rotor and rotates with the rotor. At the same time, a stator in contact with the rotor is arranged on the side, and the stator is connected through the circuit in the camera housing, and the piezoelectric ceramic component in the stator converts the electrical energy into ultrasonic vibration for transmission. Through the contact vibration, the rotor is driven to produce relative motion. At the same time, due to the relative motion between the stator and the rotor, the contact surface generates friction, and the rotor can obtain the torque of rotation or linear motion, thereby realizing the drive rotation. The principle refers to the ultrasonic motor, so that the drive component and the overall body The area is smaller, the structure is more compact, and the control is more precise, which is suitable for the rotation of this lens. During the propagation of light, a vibration direction perpendicular to the propagation direction is generated. This direction is the polarization direction. A slit is set in the propagation direction of the wave. When the direction of the slit is the same as the vibration direction of the wave, the wave can continue to propagate through the slit. If the direction of the slit is perpendicular to the vibration direction, the wave will be blocked and cannot pass through. The polarizer is equivalent to this slit. This principle can be used to selectively allow light of a certain polarization direction to pass through. The sun emits a natural light with various vibration directions and the same intensity, and the reflection after irradiating the surface of an object is polarized light in a specific direction. By rotating the polarizer, the reflected light can be filtered out and the reflection on the surface of the object can be eliminated, thereby enhancing the color of the object itself, making it possible to more effectively extract the color information on the picture taken by the camera, and avoid misjudgment caused by the influence of reflective pixels on recognition.

[0014] 2. The all-in-one device for identifying road defects has a long slide groove on the side of the camera housing, a slider driven by a motor is provided in the slide groove, a slot with the same size as the slider is provided on the side of the light shield, the light shield is sleeved outside the camera housing and is fixed by the slider passing through the slot on the side of the light shield. At the same time, the movement of the slider will drive the light shield to move, blocking the camera housing to change the amount of light entering the camera, and the exposure is adjusted by changing the amount of light entering, while preventing the equipment from being damaged by direct sunlight. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the chute structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the interior of the detection device of the utility model;

[0018] Figure 4 This is a schematic diagram of the stator of the utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the dimming component of the utility model;

[0020] Figure 6 This is a schematic diagram of the utility model;

[0021] Figure 7 It is a schematic diagram of the polarization direction of light of the utility model.

[0022] In the figure: 1. detection equipment; 2. dimming component; 3. camera; 10. mounting plate; 11. camera housing; 12. light shield; 13. slider; 21. stator; 22. rotor; 111. slideway; 211. piezoelectric ceramic element; 213. buffer block; 221. polarizer. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-Figure 3 The all-in-one device for road disease identification includes a detection device 1, which is arranged in the middle of a mounting plate 10. The detection device 1 is composed of a camera housing 11 and a light shield 12. A camera 3 capable of photographing road information in front of the detection device 1 is arranged in the camera housing 11. The mounting plate 10 is installed on the roof of a vehicle and enables the camera 3 to photograph road surface information in front of the vehicle. The detection device 1 is provided with a GPS positioning system and can transmit the photographed image information and the GPS positioning information to a processing unit. A dimming component 2 is arranged in the camera housing 11 and in front of the camera 3. The dimming component 2 is used to select the direction of polarized light entering the camera 3. The dimming component 2 is composed of a polarizer 221 and a rotating component. The rotating component can drive the polarizer in the polarizer 221 to rotate.

[0025] Furthermore, because the detection device 1 identifies the road line by pixel color, when there are water stains on the road surface and sunlight is shining, a strong reflection will be emitted, and the reflection will be judged as a white pixel in the subsequent image processing, which will interfere with the lane line recognition and the judgment of road diseases. Therefore, in the detection device 1, a polarizer 221 is arranged in front of the lens of the camera 3, and one of the polarizers of the polarizer 221 is fixed in the rotating component and rotates with the rotating component. During the propagation process, the light will produce a vibration direction perpendicular to the propagation direction. This direction is the polarization direction. The sun emits a natural light with various vibration directions and the same intensity, and the reflection after irradiating the surface of the object is polarized light in a specific direction. By rotating the polarizer 221, the reflected light in the specific direction can be filtered out, the sunlight is retained, and the reflection on the surface of the object is eliminated, thereby enhancing the color of the object itself, so that the color information on the picture taken by the camera 3 can be extracted more effectively, avoiding the influence of the reflective pixels on the recognition and causing misjudgment.

[0026] See also Figure 3-5 The rotating assembly is composed of a stator 21 and a rotor 22. The rotor 22 is annular. One side of the rotor 22 is connected to a polarizing film in the polarizer 221 to drive it to rotate. The other side of the rotor 22 contacts the stator 21 and is provided with a flange-shaped spring on the contact surface. The stator 21 is provided with evenly arranged trapezoidal protrusions on the contact surface with the rotor 22. A piezoelectric ceramic element 211 is provided on the side of the stator 21 away from the rotor 22. The piezoelectric ceramic element 211 is connected to the circuit in the camera housing 11, converts electrical energy into ultrasonic vibration for transmission, and drives the rotor 22 to produce relative motion through contact vibration. At the same time, due to the relative motion between the stator 21 and the rotor 22, friction is generated on the contact surface, and the rotor 22 can obtain torque for rotation or linear motion, thereby realizing driven rotation. The principle refers to the ultrasonic motor.

[0027] A buffer block 213 made of rubber is provided between the stator 21 and the rotor 22 and the camera housing 11, so that it is flexibly connected to the camera housing 11 to prevent vibration from being transmitted to the camera housing 11, causing the camera 3 to take blurry pictures. The buffer block 213 made of rubber has greater damping and can absorb a large amount of vibration.

[0028] The rotor 22 is made of aluminum, which is lighter overall and easier to rotate. Special treatment is performed on the joints to increase its wear resistance. The exterior of the camera housing 11 is painted with white paint to reduce the impact of heat caused by sunlight on internal equipment and precision adjustment parts.

[0029] Two dimming components 2 are provided in the camera housing 11, and the distance between the two dimming components 2 does not exceed 1 cm. The distance of the dimming component 2 closest to the camera 3 is between 3-5 mm. Two dimming components 2 are provided, and an adjustable neutral density filter can be formed through a pair of polarizers 221. When the two polarizers 221 have the same polarization directions, the amount of light entering is maximum, and when their polarization directions are perpendicular to each other, the amount of light entering is minimum, so that the amount of light entering is adjustable, thereby realizing exposure adjustment, so that shooting in a strong light environment can have a better color effect, eliminate reflections and glare, and make the color extraction of pixel points more accurate.

[0030] See also Figure 2 A long slide groove 111 is provided on the side of the camera housing 11, and a slider 13 driven by a motor is provided in the slide groove 111. A slot having the same size as the slider 13 is provided on the side of the light shield 12. The light shield 12 is sleeved outside the camera housing 11 and is fixed by the slider 13 passing through the slot on the side of the light shield 12. At the same time, the movement of the slider 13 will drive the light shield 12 to move, blocking the camera housing 11 to change the amount of light entering the camera 3, and the exposure is adjusted by changing the amount of light entering, while preventing the equipment from being damaged by direct sunlight.

[0031] The detection device 1 is detachably connected to the mounting plate 10, and the overall height of the detection device 1 does not exceed 50 cm.

[0032] Working principle: The detection device 1 is equipped with positioning modules such as GPS and Beidou, which can send the coordinate information of detected targets such as road surface defects and road surface garbage to the background. Because images are composed of points, the road surface information in front of the vehicle is photographed by camera 3. Since lane lines have national standards, there are corresponding regulations for using different lane lines on different roads. GPS is used to obtain the current position of the vehicle, thereby obtaining the current lane type, and then camera 3 is used for image acquisition. The acquired image is transmitted to the image processing unit on the device to identify the color and type of the lane line, such as white, yellow, dotted line, single solid line, double solid line and zebra crossing, etc. Because the detection device 1 identifies the road line through pixels, and when there are water stains on the road surface and sunlight is exposed, strong reflections will be emitted, and the reflections will be judged as white pixels in subsequent image processing, which will interfere with the lane line recognition and the judgment of road diseases. Therefore, in the detection device 1, a polarizer 221 is set in front of the lens of camera 3, and One of the polarizing plates of the polarizer 221 is fixed in the rotor 22 and rotates with the rotor 22. At the same time, a stator 21 in contact with the rotor 22 is provided on the side. Trapezoidal protrusions are evenly arranged on the contact surface between the stator 21 and the rotor 22. A piezoelectric ceramic element 211 is provided on the other side of the stator 21. The piezoelectric ceramic element 211 is connected to the circuit in the camera housing 11, and converts electrical energy into ultrasonic vibration for transmission. Through contact vibration, the rotor 22 is driven to produce relative motion. At the same time, due to the relative motion between the stator 21 and the rotor 22, friction is generated on the contact surface, and the rotor 22 can obtain a torque of rotation or linear motion, thereby realizing driven rotation. The principle refers to the ultrasonic motor. During the propagation process, light will produce a vibration direction perpendicular to the propagation direction. This direction is the polarization direction. A slit is set in the propagation direction of the wave. When the direction of the slit is the same as the vibration direction of the wave, the wave can continue to propagate through the slit. If the direction of the slit is perpendicular to the vibration direction, the wave will be blocked and cannot pass through. See Figure 7 , and the polarizer 221 is equivalent to this slit. This principle can be used to selectively allow light of a certain polarization direction to pass through. The sun emits a natural light with various vibration directions and the same intensity, and the reflection after irradiating the surface of an object is polarized light of a specific direction. By rotating the polarizer 221, the reflected light can be filtered out, and the reflection on the surface of the object can be eliminated, thereby enhancing the color of the object itself, making it possible to more effectively extract the color information on the picture taken by the camera 3, avoiding misjudgment caused by the influence of reflective pixels on recognition.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An all-in-one device for road hazard identification, comprising a detection device (1) and a mounting plate (10) mounted on the roof of a car, characterized in that: The detection device (1) is arranged in the middle of the mounting plate (10). The detection device (1) is composed of a camera housing (11) and a light shield (12). A camera (3) capable of photographing road information in front of the detection device (1) is arranged in the camera housing (11). The mounting plate (10) is mounted on the roof of a vehicle and enables the camera (3) to photograph road information in front of the vehicle. A GPS positioning device is arranged in the detection device (1) and is capable of transmitting photographed image information and GPS positioning information to a processing unit. The processing unit has a device capable of identifying lane line pixels. A dimming component (2) is arranged in the camera housing (11) and in front of the camera (3). The dimming component (2) is used to select the direction of polarized light entering the camera (3). The dimming component (2) is composed of a polarizer (221) and a rotating component. The rotating component is capable of driving a polarizer in the polarizer (221) to rotate.

2. The all-in-one device for road damage identification according to claim 1, characterized in that: The rotating assembly is composed of a stator (21) and a rotor (22); the rotor (22) is annular; one side of the rotor (22) is connected to a polarizing film in a polarizing filter (221) to drive the polarizing filter (221) to rotate; the other side of the rotor (22) is in contact with the stator (21) and a flange-shaped spring is provided on the contact surface; the stator (21) is provided with evenly arranged trapezoidal protrusions on the contact surface with the rotor (22); a piezoelectric ceramic element (211) is provided on a side of the stator (21) away from the rotor (22); the piezoelectric ceramic element (211) is connected to a circuit in a camera housing (11) to convert electrical energy into ultrasonic vibration for transmission.

3. The all-in-one device for road damage identification according to claim 2, characterized in that: A buffer block (213) made of rubber is provided between the stator (21) and the rotor (22) and the camera housing (11), so that the buffer block and the camera housing (11) are flexibly connected.

4. The all-in-one device for road damage identification according to claim 2, characterized in that: The rotor (22) is made of aluminum, and the exterior of the camera housing (11) is painted white.

5. The all-in-one device for road damage identification according to claim 1, characterized in that: Two dimming components (2) are arranged in the camera housing (11), the distance between the two dimming components (2) does not exceed 1 cm, and the distance of the dimming component (2) closest to the camera (3) is between 3 and 5 mm.

6. The all-in-one device for road damage identification according to claim 1, characterized in that: The camera housing (11) is provided with a long strip-shaped slide groove (111) on the side thereof, and a slider (13) is provided in the slide groove (111) and is driven to move by a motor. The light shield (12) is provided with a slot having the same size as the slider (13) on the side thereof. The light shield (12) is sleeved outside the camera housing (11) and is fixed by the slider (13) passing through the slot on the side of the light shield (12). At the same time, the movement of the slider (13) drives the light shield (12) to move, thereby shielding the camera housing (11) and changing the amount of light entering the camera (3).

7. The all-in-one device for road damage identification according to claim 1, characterized in that: The detection device (1) and the mounting plate (10) are detachably connected, and the overall height of the detection device (1) does not exceed 50 cm.

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