Road surface image acquisition device

Abstract

The utility model relates to the technical field of image acquisition, in particular to a pavement image acquisition device. The pavement image acquisition device comprises a camera and a camera fixing device, the camera fixing device is used for fixedly installing the camera, and the camera comprises a camera lens and a camera host. Wherein the fixing device comprises a camera glass seat, a glass sheet, a lens fixing ring, a camera fixing piece, a camera shell rear cover, a camera outer cover and a camera bottom plate; the bottom of the camera glass seat is connected with a first end of the camera bottom plate, the camera shell rear cover is connected with a second end of the camera bottom plate, the camera outer cover is detachably buckled on the camera bottom plate to define a mounting cavity, and the camera lens and the camera host are both arranged in the mounting cavity; the camera fixing device can be conveniently and directly fixed on other structures, so that the camera can be conveniently fixed on the top of a vehicle; meanwhile, the camera fixing device provided by the utility model can protect the camera, prevents the camera from being damaged by rainwater, dust and the like, and guarantees the service life of the camera.

Description

TECHNICAL FIELD

[0001] The utility model relates to image acquisition technical field especially relates to a road surface image acquisition device. BACKGROUND

[0002] With the aging and damage of the road surface, the road surface will have defects of different degrees, and the road surface crack is a common defect on the road surface, which mainly includes the alligatoring, the net crack and the asphalt strip crack. These cracks are caused by the factors such as the aging of the road surface, the water penetration and the climate change. The existence of these cracks will aggravate the damage of the road, and will potentially threaten the driving safety. Therefore, it is necessary to detect and repair this potential danger in time.

[0003] In the related art, an image acquisition device is usually fixed on a vehicle to acquire the road surface image and analyze the crack condition of the road surface. In order to ensure the acquisition accuracy of the road surface image, a high-precision camera is usually used to realize the road surface image sampling, so the camera needs to be fixed on the top of the vehicle at a proper shooting angle. However, there is no matching camera fixing device in the related art, so it is inconvenient to directly fix the camera on the vehicle. SUMMARY

[0004] The utility model provides a road surface image acquisition device to solve the technical problem that the camera itself is inconvenient to be directly fixed on the vehicle in the related art.

[0005] In a first aspect, the utility model provides a road surface image acquisition device, which comprises a camera and a camera fixing device, the camera fixing device is used for fixedly installing the camera, and the camera comprises a camera lens and a camera host.

[0006] The camera fixing device comprises a camera glass seat, a glass sheet, a lens fixing ring, a camera fixing part, a camera shell rear cover, a camera cover and a camera bottom plate.

[0007] The bottom of the camera glass seat is connected with the first end of the camera bottom plate, the camera shell rear cover is connected with the second end of the camera bottom plate, the camera cover is detachably buckled on the camera bottom plate, the camera bottom plate, the camera glass seat, the camera shell rear cover and the camera cover surround an installation cavity, and the camera lens and the camera host are arranged in the installation cavity.

[0008] The camera glass seat is provided with a mounting hole, the glass sheet is mounted at the mounting hole, and the lens fixing ring is arranged on the inner side of the camera glass seat and is used for limiting the glass sheet.

[0009] The lens fixing ring comprises a first bottom plate and a limiting ring arranged on the first bottom plate in a circumferential direction, the camera lens is arranged on the camera bottom plate, a front end of the camera lens is nested in the lens fixing ring, the first bottom plate and the limiting ring cooperate to limit the camera lens in an axial and radial direction, and a center of the camera lens is aligned with a center of the glass sheet;

[0010] The camera fixing member is fixed on the camera bottom plate, the camera main machine is fixed on the camera fixing member, the camera bottom plate is further provided with a threading hole near a position of the signal interface of the camera main machine, and a signal line is connected to the signal interface of the camera main machine and passes through the threading hole on the camera bottom plate.

[0011] In a possible design, the camera fixing device further comprises a bottom plate fixing seat, a ball head connecting seat and a ball head rod;

[0012] The bottom plate fixing seat comprises a fixing seat bottom plate, a left side plate and a right side plate, the fixing seat bottom plate, the left side plate and the right side plate enclose a clamping groove with a trapezoidal cross section, the camera bottom plate is clamped into the clamping groove, and the fixing seat bottom plate is detachably connected with the camera bottom plate.

[0013] The ball head connecting seat comprises a fixed plate and a movable plate, the fixed plate and the movable plate are detachably connected, an upper end of the fixed plate is fixedly connected with the fixing seat bottom plate, the fixed plate and the movable plate are oppositely arranged, and the fixed plate and the movable plate are respectively provided with an arc-shaped groove on opposite surfaces.

[0014] In a possible design, the camera fixing device further comprises a first level and a second level, the camera glass seat is provided with a first level mounting position at a bottom end, the camera bottom plate is provided with a second level mounting position at a second end, and the first level and the second level are respectively mounted on the first level mounting position and the second level mounting position.

[0015] In a possible design, the camera fixing member is an L-shaped fixing member, the camera fixing member comprises a horizontal fixing plate and a vertical fixing plate, the horizontal fixing plate is provided with a plurality of first connecting holes, the first connecting holes are used to fix the horizontal fixing plate on the camera bottom plate through a connecting member, and the vertical fixing plate is provided with a second connecting hole, the second connecting hole is used to fix the camera main machine on the camera fixing member through a connecting member.

[0016] In a possible design, the bottom of the fixed seat bottom plate is further provided with a first limiting plate and a second limiting plate; the first limiting plate and the second limiting plate are oppositely arranged, and a rectangular limiting slot is formed between the first limiting plate and the second limiting plate; the upper end of the movable plate is provided with a rectangular limiting protrusion, and the rectangular limiting protrusion is arranged in the rectangular limiting slot; the fixed plate and the movable plate are respectively provided with a third connecting hole and a fourth connecting hole, and a connecting piece is arranged in the third connecting hole and the fourth connecting hole.

[0017] In a possible design, waterproof rubber rings are arranged at the threading holes; waterproof rubber rings are also arranged at the joint of the camera cover and the camera bottom plate.

[0018] In a possible design, the camera fixing device further comprises a holder, and the camera bottom plate is fixed to the holder.

[0019] In a possible design, the road surface image acquisition device further comprises a signal processing device, and the signal processing device comprises a housing, a voltage stabilizing circuit, a voltage conversion circuit, a microprocessor and a positioning module arranged in the housing;

[0020] A positioning antenna interface is arranged on the outside of the housing, an output end of the positioning antenna interface is electrically connected to an input end of the positioning module, and an input end of the positioning antenna interface is electrically connected to a positioning antenna on a vehicle; a power supply interface, a signal input interface and a signal output interface are further arranged on the outside of the housing;

[0021] The output end of the positioning antenna interface is electrically connected to the input end of the positioning module, and the output end of the positioning module is electrically connected to the microprocessor; the power supply interface is connected to the input end of the voltage stabilizing circuit, a first output end of the voltage stabilizing circuit is electrically connected to the microprocessor; a second output end of the voltage stabilizing circuit is electrically connected to an input end of the voltage conversion circuit, and an output end of the voltage conversion circuit is electrically connected to the positioning module; the signal input interface and the signal output interface are respectively connected to a signal input end and a signal output end of the microprocessor, and the signal input interface is further electrically connected to a signal interface of the camera host;

[0022] A display screen is further arranged on one side of the housing, the microprocessor is connected to a signal input end of the display screen, and the voltage conversion circuit is connected to a power supply end of the display screen.

[0023] In a possible design, the signal processing device further comprises a wireless network antenna and a power supply button arranged on the housing.

[0024] The wireless network antenna is electrically connected to the microprocessor, and the power supply button is electrically connected to the voltage stabilizing circuit.

[0025] In a possible design, the shell is provided with a plurality of heat dissipation holes, and a heat dissipation fan is arranged in the shell and close to the heat dissipation holes, and a power supply end of the heat dissipation fan is electrically connected with the voltage conversion circuit.

[0026] Through the road surface image acquisition device provided by the utility model, the road surface image acquisition device includes a camera and a camera fixing device, the camera fixing device is used for fixing and installing the camera, and the camera includes a camera lens and a camera main machine. Wherein, the camera fixing device provided by the utility model includes a camera glass seat, a glass sheet, a lens fixing ring, a camera fixing piece, a camera shell rear cover, a camera cover and a camera bottom plate; the bottom of the camera glass seat is connected with the first end of the camera bottom plate, the camera shell rear cover is connected with the second end of the camera bottom plate, the camera cover is detachably buckled on the camera bottom plate, the camera bottom plate, the camera glass seat, the camera shell rear cover and the camera cover enclose an installation cavity, and the camera lens and the camera main machine are arranged in the installation cavity; the camera glass seat is provided with a mounting hole, the glass sheet is installed at the mounting hole, and the lens fixing ring is arranged on the inner side of the camera glass seat and is used for limiting the glass sheet; the lens fixing ring includes a first bottom plate and a limiting ring arranged on the first bottom plate in a circumferential direction, the camera lens is arranged on the camera fixing piece, the front end of the camera lens is nested in the lens fixing ring, the first bottom plate and the limiting ring cooperate to limit the camera lens in the axial and radial directions, and the center of the camera lens is aligned with the center of the glass sheet; the camera fixing piece is fixed on the camera bottom plate, the camera main machine is fixed on the camera fixing piece, the camera bottom plate is further provided with a threading hole at a position close to a signal interface of the camera main machine, a signal line is connected to the signal interface of the camera main machine, and the signal line passes through the threading hole in the camera bottom plate. According to the camera fixing device provided by the utility model, the camera can be stably fixed in the cavity formed by the camera fixing device, the camera fixing device is directly fixed on other structures, and therefore, the fixation of the camera on the top of the vehicle is facilitated. Meanwhile, the camera fixing device provided by the utility model can protect the camera, avoid damage of rainwater, dust and the like to the camera, and guarantee the service life of the camera. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 Fig. 1 is a structural schematic view of a road surface image acquisition device provided by an embodiment of the utility model;

[0028] Figure 2 Fig. 2 is another structural schematic view of the road surface image acquisition device provided by the embodiment of the utility model;

[0029] Figure 3 Fig. 3 is a third structural schematic view of the road surface image acquisition device provided by the embodiment of the utility model;

[0030] Figure 4 Fig. 4 is a structural schematic view of a signal processing device provided by an embodiment of the utility model;

[0031] Figure 5 The signal processing device structure schematic view two provided by the embodiment of the utility model. DETAILED DESCRIPTION

[0032] In the utility model, "at least one" means one or more, and "a plurality of" means two or more than two. The association relationship of the associated objects is described, which means that there can be three kinds of relationships, for example, A and / or B, which can mean that A exists alone, A and B exist together, and B exists alone, wherein A and B can be singular or plural. The character " / " generally represents that the associated objects before and after are in an "or" relationship. "At least one (one)" or similar expressions mean any combination of these items, including any combination of single item (one) or multiple items (one). For example, at least one of a, b or c alone can mean: a alone, b alone, c alone, combination of a and b, combination of a and c, combination of b and c, or combination of a, b and c, wherein a, b and c can be single or multiple. In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance.

[0033] The terms "center", "longitudinal", "transverse", "upper", "lower", "left", "right", "front", "rear" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the utility model.

[0034] The terms "connected", "connected" should be understood broadly, for example, the "connected" or "connected" of the circuit structure can mean physical connection, but also means electrical connection or signal connection, for example, it can be directly connected, that is, physically connected, or indirectly connected through at least one intermediate element, as long as the circuit is connected, it can also be the internal connection of two elements; Signal connection can be signal connection through circuit, but also means signal connection through media medium, for example, radio wave. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0035] In the related art, the camera usually needs to be fixed on the top of the vehicle at a suitable shooting angle, and because the structure of the camera itself is not convenient to fix, it is not convenient to fix the camera directly on the vehicle. In addition, if the camera is fixed directly on the roof, it is easy to damage the camera when working in rainy days, and the sand and dust in the air will also damage the camera, thereby affecting the working life of the camera.

[0036] In order to overcome the defects in the above related art, the utility model provides a kind of road surface image acquisition device, the road surface image acquisition device includes camera fixing device, the camera fixing device includes camera glass seat, glass sheet, lens fixing ring, camera fixing piece, camera shell back cover, camera cover and camera bottom plate;The bottom of camera glass seat is connected with the first end of camera bottom plate, camera shell back cover is connected with the second end of camera bottom plate, camera cover is detachably buckled on the camera bottom plate, camera bottom plate, camera glass seat, camera shell back cover and camera cover enclose an installation cavity, camera lens and camera host are all arranged in installation cavity;Mounting hole is provided on camera glass seat, glass sheet is installed at the mounting hole, lens fixing ring is arranged in the inside of camera glass seat, and lens fixing ring is used to limit glass sheet;Lens fixing ring includes first bottom plate and limiting ring arranged on the first bottom plate along the circumference, camera lens is arranged on the camera fixing piece, the front end of camera lens is nested in lens fixing ring, the first bottom plate and limiting ring cooperate to limit camera lens in axial and radial directions, and the center of camera lens is aligned with the center of glass sheet;Camera fixing piece is fixed on the camera bottom plate, camera host is fixed on camera fixing piece, wire hole is further provided on camera bottom plate close to camera host signal interface, signal line is connected on the signal interface of camera host, and signal line passes through wire hole on camera bottom plate.

[0037] According to the camera fixing device provided by the utility model, the camera can be stably fixed in the cavity formed by the camera fixing device, and the camera is protected to a certain extent, and since the camera fixing device includes a camera bottom plate, it is convenient to directly fix the camera on other structures, so the fixation of the camera on the top of the vehicle is facilitated; meanwhile, the camera cover provided by the utility model can protect the camera, avoid damage to the camera caused by rainwater, dust and the like, and ensure the service life of the camera.

[0038] Figure 1 For the road surface image acquisition device structure schematic view provided by the utility model embodiment, please refer to Figure 1 The road surface image acquisition device includes a camera and a camera fixing device, and the camera fixing device is used for fixing and installing the camera.

[0039] In the embodiment, the camera fixing device includes a camera glass seat 1, a glass sheet 14, a lens fixing ring 3, a camera fixing piece 8, a camera shell back cover 7, a camera cover 2 and a camera bottom plate 6. The bottom of the camera glass seat 1 is connected with the first end of the camera bottom plate 6, the camera shell back cover 7 is connected with the second end of the camera bottom plate 6, and the camera cover 2 is detachably buckled on the camera bottom plate 6. Thus, the camera bottom plate 6, the camera glass seat 1, the camera shell back cover 7 and the camera cover 2 jointly enclose an installation cavity, and the camera lens 4 and the camera host 5 are both arranged in the installation cavity.

[0040] The camera glass seat 1 is provided with a mounting hole 11, the glass sheet 14 is mounted at the mounting hole 11, and the lens fixing ring 3 is arranged on the inner side of the camera glass seat 1. The mounting hole 11 is a concave mounting hole, and is not a conventional through hole. The bottom of the mounting hole 11 is slightly convex to limit the glass sheet 14. After the glass sheet 14 is mounted to the mounting hole 11 of the camera glass seat 1, the lens fixing ring 3 is mounted. A plurality of threaded holes are uniformly arranged on the camera glass seat 1 and the lens fixing ring 3 along the circumferential direction. After the centers of the lens fixing ring 3 and the camera glass seat 1 are aligned, the lens fixing ring 3 and the camera glass seat 1 can be fixed to each other by screws. After the lens fixing ring 3 and the camera glass seat 1 are fixed to each other, the lens fixing ring 3 also limits the glass sheet 14. In this way, the glass sheet is prevented from moving during vehicle movement or jolting, and the image shooting quality of the camera is ensured.

[0041] The lens fixing ring 3 comprises a first bottom plate 31 and a limiting ring 32 arranged on the first bottom plate 31 along the circumferential direction. Specifically, the limiting ring 32 of the embodiment comprises three parts arranged uniformly. The camera lens 4 is arranged on the camera bottom plate 6, and the front end of the camera lens 4 is nested in the lens fixing ring 3, so that the center of the camera lens 4 is on the same center line as the center of the glass sheet 14. The first bottom plate 6 and the limiting ring 32 cooperate to limit the camera lens 4 in the axial and radial directions, so that the center of the camera lens 4 can be clocked to align with the center of the glass sheet 14 during vehicle movement, and the shooting quality of the camera is ensured.

[0042] The camera fixing member 8 is fixed to the camera bottom plate 6, and the camera main machine 5 is fixed to the camera fixing member 8. In addition, the camera bottom plate 6 is provided with a threading hole 61 near the position of the signal interface 51 of the camera main machine. Specifically, the threading hole 61 of the embodiment is arranged near the second end of the camera bottom plate 6. The signal interface 51 of the camera main machine 5 is connected with a signal line, and the signal line passes through the threading hole 61 of the camera bottom plate 6 and is electrically connected with a signal processing device, so as to transmit the image information collected by the camera to the signal processing device for processing.

[0043] According to the camera fixing device, the camera bottom plate 6 can be directly fixed to other structures, so that the camera is fixed on the top of the vehicle conveniently. Meanwhile, the camera cover can protect the camera and avoid damage of rain, dust and the like to the camera, so as to ensure the working life of the camera.

[0044] Please continue to see Figure 1As shown, the camera fixing part 8 is an L-shaped fixing part, specifically, the camera fixing part 8 comprises a horizontal fixing plate 82 and a vertical fixing plate 81, the horizontal fixing plate 82 is provided with a plurality of first connecting holes, the first connecting holes are used for fixing the horizontal fixing plate 82 on the camera bottom plate 6 through connecting pieces, the vertical fixing plate 81 is provided with second connecting holes, the second connecting holes are used for fixing the camera main machine 5 on the camera fixing part 8 through connecting pieces.

[0045] During installation, the horizontal fixing plate 82 in the camera fixing part 8 can be first fixed on the camera bottom plate 6 through screws, the camera main machine 5 is provided with a threaded hole corresponding to the side close to the vertical fixing plate 81, and then the camera main machine 5 is fixed with the vertical fixing plate 81 through screws, so that the camera main machine 5 is stably fixed on the camera bottom plate 6.

[0046] In an embodiment, please continue to refer to Figure 1 As shown, the camera fixing device provided by the embodiment further comprises a first level meter 13 and a second level meter 71. Specifically, the bottom end of the camera glass seat 1 is provided with a first level meter mounting position 11, the second end of the camera bottom plate 6 is provided with a second level meter mounting position 62, and the first level meter 13 and the second level meter 71 are respectively mounted on the first level meter mounting position 11 and the second level meter mounting position 62.

[0047] It can be understood that, in order to ensure the shooting angle of the camera to the road surface, according to the current installation height of the camera, after adjusting the focal length and various parameters of the camera, the angle of the camera needs to be adjusted and fixed, and in order to ensure the accuracy of the angle adjustment, the first level meter 13 and the second level meter 71 are arranged at the two ends of the camera bottom plate 6 respectively, so that the level meter can be referred to when adjusting the angle of the camera, thereby ensuring the accuracy of the angle adjustment.

[0048] Figure 2 A road surface image acquisition device structure schematic view II provided by the embodiment of the utility model, Figure 3 A road surface image acquisition device structure schematic view III provided by the embodiment of the utility model, please refer to Figure 2 and Figure 3 As shown, in an embodiment, the camera fixing device further comprises a bottom plate fixing seat, a ball head connecting seat and a ball head rod 100. The bottom plate fixing seat is used for fixed connection with the camera bottom plate 6, and the ball head connecting seat is used for connection with the ball head rod 100.

[0049] The bottom plate fixing seat comprises a fixing seat bottom plate 91, a left side plate 93 and a right side plate 92. The fixing seat bottom plate 91, the left side plate 93 and the right side plate 92 form a clamping groove with a trapezoidal cross section. The inner side surfaces of the left side plate 93 and the right side plate 92 gradually extend inward. The camera bottom plate 6 is clamped into the clamping groove, which limits the camera bottom plate 6. The fixing seat bottom plate 91 is detachably connected with the camera bottom plate 6, so that the fixing seat bottom plate 91 and the camera bottom plate 6 can be conveniently disassembled.

[0050] Specifically, in the embodiment, threaded holes are arranged on the fixing seat bottom plate 91 and the camera bottom plate 6. The fixing seat bottom plate 91 and the camera bottom plate 6 are connected by a first bolt 99, so that the fixing seat bottom plate 91 and the camera bottom plate 6 are detachably connected.

[0051] In an embodiment, the camera fixing device further comprises a holder. The camera bottom plate 6 or the fixing seat bottom plate 91 can be fixed on the holder, so that the shooting angle of the camera can be adjusted by controlling the holder.

[0052] Please continue to refer to Figure 2 and Figure 3 As shown in the figures, the ball head connecting seat is arranged at the lower end of the bottom plate fixing seat. The ball head connecting seat comprises a fixed plate 96 and a movable plate 97. The fixed plate 96 and the movable plate 97 are detachably connected. The upper end of the fixed plate 96 is fixedly connected with the fixing seat bottom plate 91. The fixed plate 96 and the movable plate 97 are oppositely arranged and have a gap therebetween. Arc-shaped grooves are arranged on the opposite surfaces of the fixed plate 96 and the movable plate 97. The ball head of the ball head rod 100 is arranged in the groove between the fixed plate 96 and the movable plate 97.

[0053] It can be understood that the arc-shaped grooves are arranged on the opposite surfaces of the fixed plate 96 and the movable plate 97. A single groove is smaller than half a ball. The arc-shaped grooves on the two plates cannot completely wrap the ball head. After the ball head of the ball head rod 100 is arranged in the arc-shaped groove between the fixed plate 96 and the movable plate 97, the two sides of the ball head are clamped by the arc-shaped groove. In addition, the fixed plate 96 and the movable plate 97 are provided with threaded holes. The fixed plate 96 and the movable plate 97 are connected by a second bolt 98, so that the arc-shaped grooves on the fixed plate 96 and the movable plate 97 fix the ball head.

[0054] The limiting structure of the ball head and the arc-shaped groove in the embodiment makes the ball head rod 100 and the ball head connecting seat not rigidly connected. In view of the fact that the camera in the embodiment needs to be installed on the top of a vehicle, when the vehicle encounters a poor road condition, the camera inevitably has some jolting movement. If the ball head rod 100 and the ball head connecting seat are rigidly connected, the stress generated by long-time jolting may cause damage to the rigid structure. In order to overcome the technical defect, the connecting structure of the ball head and the arc-shaped groove in the embodiment makes the two relative to each other slightly move during the jolting of the vehicle, so that the stress generated during the jolting of the vehicle can be unloaded, the connecting structure is prevented from being damaged, and the service life of the equipment is ensured.

[0055] Please continue to see Figure 2 and Figure 3 As shown in the figure, the bottom of the fixed seat bottom plate 91 is further provided with a first limiting plate 94 and a second limiting plate 95; the first limiting plate 94 and the second limiting plate 95 are oppositely arranged, and a rectangular limiting groove is formed in the middle of the first limiting plate 94 and the second limiting plate 95; the upper end of the movable plate 97 is provided with a rectangular limiting protrusion 970, which is arranged in the rectangular limiting groove formed in the middle of the first limiting plate 94 and the second limiting plate 95, and the rectangular limiting groove can limit the rectangular limiting protrusion 970 left and right, so that the ball head on the ball head rod 100 is more stable. The third connecting hole and the fourth connecting hole are arranged on the fixed plate 96 and the movable plate 97 respectively, and the second bolt 98 passes through the third connecting hole and the fourth connecting hole to detachably connect the fixed plate 96 and the movable plate 97.

[0056] Further, the waterproof rubber ring is arranged at the threading hole 61 in the embodiment to play a waterproof role; the combination of the camera cover 2 and the camera bottom plate 6 is also provided with a waterproof rubber ring; in addition, the waterproof rubber ring can also be arranged at the contact between the camera glass seat 1 and the glass sheet 14 to play a waterproof role, so as to avoid damage to the camera caused by rain or water spraying vehicles.

[0057] As can be seen, according to the camera fixing device provided in the embodiment, the camera can be first stably fixed in a relatively sealed cavity to avoid damage to the camera by rain or dust; then the camera is indirectly fixed on the ball head rod 100 by the ball head connecting seat and the bottom plate fixing seat provided in the embodiment, so that the stress generated during the jolting of the vehicle can be unloaded, the connecting structure is prevented from being damaged, and finally the ball head rod 100 can be fixed on the top of the vehicle, so that the camera is fixed.

[0058] Figure 4 For the signal processing device structure schematic diagram provided in the embodiment of the utility model, please see Figure 4As shown, in an embodiment, the road surface image acquisition device further comprises a signal processing device, which comprises a shell 210 and a voltage stabilizing circuit 21, a voltage conversion circuit 22, a microprocessor 23 and a positioning module 24 arranged in the shell 210.

[0059] The shell 210 is externally provided with a positioning antenna interface 25, the output end of the positioning antenna interface 25 is electrically connected with the input end of the positioning module 24 in the shell 210, the input end of the positioning antenna interface 25 is used for electrically connecting with a positioning antenna on the vehicle, so as to send the positioning information collected by the positioning antenna to the positioning module 24. The output end of the positioning antenna interface 25 is electrically connected with the input end of the positioning module 24, and the output end of the positioning module 24 is electrically connected with the microprocessor 23. The positioning module 24 sends the real-time positioning information to the microprocessor 23 after processing the positioning information collected by the positioning antenna.

[0060] Figure 5 For the signal processing device structure diagram two of the embodiment of the utility model, please see Figure 5 As shown, the shell 210 is externally further provided with a power supply interface 29, a signal input interface 27 and a signal output interface 28; the input end of the power supply interface 29 is electrically connected with the power supply system on the vehicle to take power, and the output end of the power supply interface 29 is connected with the input end of the voltage stabilizing circuit 21 to supply power to the voltage stabilizing circuit 21. The first output end of the voltage stabilizing circuit 21 is electrically connected with the microprocessor 23, and the second output end of the voltage stabilizing circuit 21 is electrically connected with the input end of the voltage conversion circuit 22. The voltage stabilizing circuit 21 supplies power to the microprocessor 23 after voltage stabilizing processing of the vehicle input electric signal, and simultaneously, the voltage stabilizing circuit 21 also outputs the voltage stabilizing processed electric signal to the voltage conversion circuit 22. The output end of the voltage conversion circuit 22 is electrically connected with the positioning module 24, and the voltage conversion circuit 22 outputs the power supply voltage adapted to the positioning module 24 to supply power to the positioning module 24 after reducing processing of the input voltage signal.

[0061] In an embodiment, the positioning module 24 of the embodiment can select a Beidou positioning module, which is communicatively connected with the Beidou positioning antenna on the vehicle to realize accurate positioning of the vehicle.

[0062] It can be understood that the voltage stabilizing circuit 21 and the voltage conversion circuit 22 in the embodiment are commonly used and well-known functional module circuits in the circuit field, and corresponding circuit chips can be directly used, which will not be described herein.

[0063] The signal input interface 27 and the signal output interface 28 are respectively connected with the signal input end and the signal output end of the microprocessor 23, and the signal input interface 27 is also electrically connected with the signal interface 51 of the camera host 5. The camera host 5 sends the collected image information to the microprocessor 23 through the signal line. The signal input interface 27 and the signal output interface 28 are respectively used to realize information transmission with the microprocessor 23, for example, the image information collected by the camera can be transmitted to the microprocessor 23 through the signal input interface 27, and the information processed by the microprocessor 23 can also be output to other devices through the signal output interface 28.

[0064] The shell 210 is also provided with a display screen 296 on one side, the microprocessor 23 is connected with the signal input end of the display screen 296, and the voltage conversion circuit 22 is connected with the power supply end of the display screen 296 to supply power to the display screen 296; the display screen 296 is used to display the information to be displayed output by the microprocessor 23.

[0065] In a specific embodiment, the signal input interface 27 and the signal output interface 28 can be selected from different types of signal communication interfaces, for example, USB-A, USB-C, HDMI, etc.

[0066] Further, the signal processing device also includes a wireless network antenna 26 and a power button 291 provided on the shell 210, the wireless network antenna 26 is electrically connected with the microprocessor 23 to enhance the wireless signal, specifically, the wireless network antenna 26 can be a common local area network antenna, for example, a Bluetooth antenna or a WIFI (Wireless Fidelity) antenna, etc. The power button 291 is electrically connected with the voltage stabilization circuit 21, and the power button 291 is used to control the power supply system of the whole machine, so as to control the opening and closing of the whole machine.

[0067] Please continue to see Figure 5 In a specific embodiment, the shell 210 is also provided with a network interface 294, a reserved communication interface 293 and a reserved power supply interface 292, the network interface 294 and the reserved communication interface 293 are electrically connected with the microprocessor 23, and the reserved power supply interface 292 is electrically connected with the voltage stabilization circuit 21.

[0068] In an embodiment, the shell 210 is provided with a plurality of heat dissipation holes, and a heat dissipation fan is arranged in the shell 210 close to the heat dissipation holes, the power supply end of the heat dissipation fan is electrically connected with the voltage conversion circuit 22, and the voltage conversion circuit 22 is used to supply power to the heat dissipation fan, so that the heat dissipation fan can realize heat dissipation of the whole machine, avoiding the influence of overheating of the whole machine on the data processing efficiency.

[0069] Finally, it should be noted that the above examples, only a specific embodiment of the present application, but the scope of protection of the present application is not limited to this, any change or replacement within the scope of the present application disclosed, should be covered within the scope of protection of the present application. Therefore, the scope of protection of the present application should be subject to the scope of protection of the claims.

Claims

1. A road surface image acquisition device, characterized in that, The road surface image acquisition device includes a camera and a camera fixing device. The camera fixing device is used to fix the camera in place. The camera includes a camera lens and a camera main unit. The camera fixing device includes a camera glass mount, a glass plate, a lens fixing ring, a camera fixing component, a camera housing back cover, a camera outer cover, and a camera base plate; The bottom of the camera glass mount is connected to the first end of the camera base plate, the rear cover of the camera housing is connected to the second end of the camera base plate, and the camera cover is detachably fastened to the camera base plate. The camera base plate, camera glass mount, rear cover of the camera housing, and camera cover form a mounting cavity, and the camera lens and camera main unit are both disposed in the mounting cavity. The camera glass mount has mounting holes, the glass sheet is mounted in the mounting holes, the lens retaining ring is disposed inside the camera glass mount, and the lens retaining ring is used to limit the position of the glass sheet; The lens fixing ring includes a first base plate and a limiting ring arranged circumferentially on the first base plate. The camera lens is disposed on the camera base plate, and the front end of the camera lens is nested in the lens fixing ring. The first base plate and the limiting ring cooperate to limit the camera lens axially and radially, and the center of the camera lens is aligned with the center of the glass plate. The camera mounting bracket is fixed to the camera base plate, and the camera host is fixed to the camera mounting bracket. The camera base plate is also provided with a wire hole near the signal interface of the camera host. A signal line is connected to the signal interface of the camera host, and the signal line passes through the wire hole on the camera base plate.

2. The road surface image acquisition device according to claim 1, characterized in that, The camera fixing device also includes a base plate fixing seat, a ball joint connector, and a ball joint rod; The base plate mounting bracket includes a mounting base plate, a left side plate, and a right side plate. The mounting base plate, the left side plate, and the right side plate form a slot with a trapezoidal cross-section. The camera base plate is inserted into the slot, and the mounting base plate and the camera base plate are detachably connected. The ball joint connector includes a fixed plate and a movable plate, which are detachably connected. The upper end of the fixed plate is fixedly connected to the base plate of the fixed seat. The fixed plate and the movable plate are arranged opposite to each other, and each of the opposite surfaces of the fixed plate and the movable plate is provided with an arc-shaped groove. The ball head on the ball joint rod is set in the groove between the fixed plate and the movable plate.

3. The road surface image acquisition device according to claim 1 or 2, characterized in that, The camera fixing device also includes a first level and a second level; the bottom of the camera glass mount is provided with a first level mounting position, and the second level is provided on the second end of the camera base plate, with the first level and the second level respectively mounted on the first level mounting position and the second level mounting position.

4. The road surface image acquisition device according to claim 2, characterized in that, The camera mounting bracket is an L-shaped bracket, which includes a horizontal mounting plate and a vertical mounting plate. The horizontal mounting plate has multiple first connecting holes, which are used to fix the horizontal mounting plate to the camera base plate through a connector. The vertical mounting plate has second connecting holes, which are used to fix the camera main unit to the camera mounting bracket through a connector.

5. The road surface image acquisition device according to claim 4, characterized in that, The bottom of the fixed base plate is also provided with a first limiting plate and a second limiting plate; the first limiting plate and the second limiting plate are arranged opposite to each other, forming a rectangular limiting groove in the middle; the upper end of the movable plate is provided with a rectangular limiting protrusion, which is arranged in the rectangular limiting groove; the fixed plate and the movable plate are respectively provided with a third connecting hole and a fourth connecting hole, and a connecting member is provided in the third connecting hole and the fourth connecting hole.

6. The road surface image acquisition device according to claim 1 or 2, characterized in that, A waterproof rubber ring is provided at the threading hole; a waterproof rubber ring is also provided at the joint between the camera cover and the camera base plate.

7. The road surface image acquisition device according to claim 1, characterized in that, The camera mounting device also includes a gimbal, and the camera base plate is fixed on the gimbal.

8. The road surface image acquisition device according to claim 1 or 2, characterized in that, The road image acquisition device also includes a signal processing device, which includes a housing and a voltage regulator circuit, a voltage conversion circuit, a microprocessor, and a positioning module disposed within the housing. The housing is provided with a positioning antenna interface. The output end of the positioning antenna interface is electrically connected to the input end of the positioning module. The input end of the positioning antenna interface is used to electrically connect to the positioning antenna on the vehicle. The housing is also provided with a power supply interface, a signal input interface, and a signal output interface. The output terminal of the positioning antenna interface is electrically connected to the input terminal of the positioning module, and the output terminal of the positioning module is electrically connected to the microprocessor; the power supply interface is connected to the input terminal of the voltage regulator circuit, and the first output terminal of the voltage regulator circuit is electrically connected to the microprocessor; the second output terminal of the voltage regulator circuit is electrically connected to the input terminal of the voltage conversion circuit, and the output terminal of the voltage conversion circuit is electrically connected to the positioning module; the signal input interface and the signal output interface are respectively connected to the signal input terminal and the signal output terminal of the microprocessor, and the signal input interface is also electrically connected to the signal interface of the camera host. A display screen is also provided on one side of the housing. The microprocessor is connected to the signal input terminal of the display screen, and the voltage conversion circuit is connected to the power supply terminal of the display screen.

9. The road surface image acquisition device according to claim 8, characterized in that, The signal processing device also includes a wireless network antenna and a power button disposed on the housing; The wireless network antenna is electrically connected to the microprocessor; the power button is electrically connected to the voltage regulator circuit.

10. The road surface image acquisition device according to claim 9, characterized in that, The housing is provided with multiple heat dissipation holes, and a cooling fan is provided inside the housing near the heat dissipation holes. The power supply terminal of the cooling fan is electrically connected to the voltage conversion circuit.

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