Distortionless imaging device for vehicle chassis

Abstract

The utility model discloses a vehicle chassis distortionless imaging device which comprises a device shell, one face, facing a vehicle chassis, of the device shell is a first working face, the first working face is provided with an inclined face structure, and the inclined face structure is provided with two light module installation structures. Three camera mounting holes are further formed in the first working face, the axis of the first camera mounting hole is perpendicular to the first working face, and the second camera mounting hole and the third camera mounting hole are symmetrically formed in the two sides of the first camera mounting hole; an included angle of 45 degrees is formed between the axis of the second camera mounting hole and the axis of the first camera mounting hole and between the axis of the third camera mounting hole and the axis of the first camera mounting hole, and the axes of the three camera mounting holes are located on the same plane; and the inclined plane of the inclined plane structure faces the first camera mounting hole. The camera and the light module are installed through the structure, the shooting angles of the camera are different, the light supplementing angle of the light module and the shooting angle of the camera are arranged in a matched mode, and distortionless shooting imaging can be conducted on a vehicle chassis.

Description

Technical Field

[0001] The utility model belongs to the technical field of vehicle safety inspection, and particularly relates to a vehicle chassis non - distorted imaging device. Background Technique

[0002] The statements here only provide the background technique related to the utility model, and do not necessarily constitute the prior art.

[0003] In real life, vehicle chassis inspections are often required at highway checkpoints, customs and border defense, important conferences, security sites, etc. to ensure that the passing vehicles do not carry prohibited items and to detect whether the vehicle chassis is damaged or modified. In the prior art, image acquisition devices are often used to photograph the vehicle chassis from below the vehicle and analyze the obtained images to achieve the inspection of the vehicle chassis. It is understandable that the imaging effect of the vehicle chassis is crucial for the inspection of the vehicle chassis.

[0004] Regarding the image acquisition component of a mobile vehicle bottom imaging security inspection system disclosed in a Chinese utility model patent (application number 202123260641.5), it uses a full - color wide - angle camera to collect vehicle chassis images. However, the setting of a single camera will cause distortion at the edges of the collected vehicle chassis images, resulting in image distortion, poor imaging effect of the vehicle chassis, affecting chassis inspection, and the image frame it captures is limited, unable to see whether there are prohibited items inside the tires at the bottom of the vehicle. At the same time, when collecting images of the bottom of the vehicle chassis, supplementary lighting is required, but the brightness and angle of the light source during supplementary lighting will also affect the imaging effect of the camera on the vehicle chassis. Therefore, how to cooperate the supplementary light lamp and the camera to obtain a clear imaging effect is also an urgent problem to be solved. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a vehicle chassis non - distorted imaging device. By making the device flat, it is convenient to place it under the vehicle chassis. Three cameras and two lighting modules are arranged on one side of the device. The shooting angles of the three cameras are different, which can perform non - distorted imaging on the vehicle chassis, and the captured image frame is larger, and the tires at the bottom of the vehicle can also be clearly displayed, enabling a comprehensive display and detection of the vehicle chassis. At the same time, the supplementary lighting angle of the lighting module is set in cooperation with the shooting angle of the camera, and reasonable supplementary lighting is carried out on the vehicle chassis to further achieve clearer image acquisition of the vehicle chassis.

[0006] To achieve the above - mentioned purpose, the utility model is realized through the following technical solutions:

[0007] In a first aspect, an embodiment of the present utility model provides a vehicle chassis non-distorted imaging device, including a device housing. One side of the device housing facing the vehicle chassis is a first working surface, and the first working surface is provided with an inclined surface structure. Two lighting module mounting structures for mounting lighting modules are provided on the inclined surface structure;

[0008] The first working surface is further provided with a first camera mounting hole, a second camera mounting hole, and a third camera mounting hole for mounting a camera. The axis of the first camera mounting hole is perpendicular to the first working surface. The second camera mounting hole and the third camera mounting hole are symmetrically arranged on both sides of the first camera mounting hole; the axes of the second camera mounting hole and the third camera mounting hole form an angle of 45° with the axis of the first camera mounting hole respectively, and the axes of the first camera mounting hole, the second camera mounting hole, and the third camera mounting hole are all located in the same plane;

[0009] The inclined surface of the inclined surface structure faces the first camera mounting hole.

[0010] As a further technical solution, the inclined surface structure inclines at a certain angle towards the inside of the device housing, and there is a certain distance between the bottom of the inclined surface structure and the side of the device housing away from the first working surface.

[0011] As a further technical solution, the first camera mounting hole, the second camera mounting hole, and the third camera mounting hole are provided on the first working surface between the bottom of the inclined surface structure and the end of the device housing.

[0012] As a further technical solution, the two lighting module mounting structures are parallel to each other and are symmetrically arranged on the inclined surface structure with respect to the plane where the axis of the first camera mounting hole and the center line of the device housing are located.

[0013] As a further technical solution, the lighting module mounting structure includes a pressing plate mounting structure, a lens mounting hole, a sealing strip mounting structure, and an LED light source mounting hole.

[0014] As a further technical solution, an LED light source is installed at the top of the LED light source mounting hole, a lens is installed in the upper part of the LED light source mounting hole in the lens mounting hole, a sealing strip mounting structure is provided on the periphery of the lens mounting hole to install a sealing strip, and a pressing plate is installed in the upper part of the lens mounting hole in the pressing plate mounting structure.

[0015] As a further technical solution, the pressing plate is sleeved outside the lens and is detachably connected to the pressing plate mounting structure by bolts through squeezing the sealing strip.

[0016] As a further technical solution, the sealing strip is a rubber strip.

[0017] As a further technical solution, inside the device housing, there is also a network switch installation structure for installing a network switch, a sensor installation structure for installing sensors, an LED light driver board installation structure for installing an LED light driver board, and a line channel.

[0018] As a further technical solution, at one end of the device housing away from the first camera mounting hole, there is a docking head mounting hole.

[0019] The beneficial effects of the above embodiments of the present invention are as follows:

[0020] 1. By setting the structure of the vehicle chassis distortion-free imaging device, the internal components are reasonably arranged, and the device housing is in a flattened structure, which is convenient for placing at the vehicle chassis with different chassis heights for image acquisition and avoids chassis scraping.

[0021] 2. By setting three cameras and two lighting modules, the first camera shoots vertically at the vehicle chassis, and the second camera and the third camera shoot at a 45° angle to the vehicle chassis on both sides of the first camera. The shooting angles of the three cameras are different, so that distortion-free imaging of the vehicle chassis can be carried out. At the same time, the supplementary lighting angle of the lighting module is set in cooperation with the shooting angle of the camera, and reasonable supplementary lighting is carried out on the vehicle chassis to further make the image shooting of the vehicle chassis clearer.

[0022] 3. By setting three cameras to collect images of the vehicle chassis, the image frame of the vehicle chassis taken is larger, and the inner structure of the tire under the vehicle can be clearly shown, which is applicable to vehicles with different chassis widths and is convenient for the staff to conduct a comprehensive and detailed inspection of the vehicle chassis. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The attached drawings forming a part of this specification are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention.

[0024] Figure 1 It is a schematic diagram of the overall external structure of a vehicle chassis distortion-free imaging device shown in Embodiment 1 of the present invention;

[0025] Figure 2 It is a schematic diagram of the internal structure of a vehicle chassis distortion-free imaging device shown in Embodiment 1 of the present invention;

[0026] Figure 3 It is a schematic diagram of the slope structure of a vehicle chassis distortion-free imaging device shown in Embodiment 1 of the present invention.

[0027] The schematic diagrams are only for illustration purposes;

[0028] Among them, 1. device housing; 2. pressing plate mounting structure; 3. lens mounting hole; 4. sealing strip mounting structure; 5. LED light source mounting hole; 6. second camera mounting hole; 7. first camera mounting hole; 8. third camera mounting hole; 9. network switch mounting structure; 10. sensor mounting structure; 11. LED light driving board mounting structure; 12. line channel; 13. docking head mounting hole; 14. inclined surface structure. Specific embodiments

[0029] It should be noted that the following detailed description is exemplary and is intended to provide further illustration of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present invention belongs.

[0030] Embodiment 1

[0031] In a typical embodiment of the present invention, as Figure 1 shown, a vehicle chassis non-distorted imaging device is provided, in which the device housing 1 is designed in a flattened shape, which can be more conveniently placed at the bottom of the vehicle for image acquisition of its chassis, avoiding scratching the vehicle chassis. It should be noted that the mounting structures in this embodiment are all sealed structures to prevent water and dust from entering and damaging during the image acquisition of the vehicle chassis.

[0032] It includes a device housing 1. One side of the device housing 1 facing the vehicle chassis is the first working surface. The first working surface is provided with an inclined surface structure 14, and there are two lighting module mounting structures for mounting lighting modules on the inclined surface structure 14;

[0033] The first working surface is also provided with a first camera mounting hole 7, a second camera mounting hole 6, and a third camera mounting hole 8 for mounting cameras. The axis of the first camera mounting hole 7 is perpendicular to the first working surface. The second camera mounting hole 6 and the third camera mounting hole 8 are symmetrically arranged on both sides of the first camera mounting hole 7; the axes of the second camera mounting hole 6 and the third camera mounting hole 8 are respectively at an angle of 45° with the axis of the first camera mounting hole 7, and the axes of the first camera mounting hole 7, the second camera mounting hole 6, and the third camera mounting hole 8 are all located in the same plane;

[0034] The inclined surface of the inclined surface structure 14 faces the first camera mounting hole 7.

[0035] With the above settings, the first camera shoots vertically downward at the vehicle chassis, the second and third cameras shoot at a 45° angle to the vehicle chassis on both sides of the first camera, and at the same time, the lighting module provides supplementary lighting for the shooting. In this way, the three cameras can clearly capture images of the vehicle chassis from different angles, reducing image distortion and distortion, and transmitting the images obtained by the three cameras to the PC side for synthesis processing for the staff to inspect the vehicle chassis.

[0036] As Figure 3 shown, the inclined surface structure 14 inclines towards the inside of the device housing 1 at a certain angle, and there is a certain distance between the bottom of the inclined surface structure 14 and the side of the device housing 1 away from the first working surface.

[0037] On the first working surface between the bottom of the inclined surface structure 14 and the end of the device housing 1, there are a first camera mounting hole 7, a second camera mounting hole 6, and a third camera mounting hole 8.

[0038] The two lighting module mounting structures are parallel to each other and are symmetrically arranged on the inclined surface structure 14 with respect to the plane where the axis of the first camera mounting hole 7 and the midline of the device housing 1 are located.

[0039] With such a setting, the lighting module on the inclined surface structure 14 can provide reasonable supplementary lighting for the first, second, and third cameras, and the supplementary lighting angle will not cause shadows during the imaging process of the vehicle chassis.

[0040] The lighting module mounting structure includes a pressing plate mounting structure 2, a lens mounting hole 3, a sealing strip mounting structure 4, and an LED light source mounting hole 5.

[0041] At the top of the LED light source mounting hole 5, an LED light source is installed. A lens is installed above the LED light source mounting hole 5 in the lens mounting hole 3. A sealing strip mounting structure 4 is provided on the periphery of the lens mounting hole 3 and is equipped with a sealing strip. The pressing plate mounting structure 2 is located above the lens mounting hole 3 and is equipped with a pressing plate.

[0042] The pressing plate is sleeved outside the lens and squeezes the sealing strip to be detachably connected to the pressing plate mounting structure 2 through bolts. The sealing strip is a rubber strip.

[0043] With the above settings, it can be ensured that the lighting module has a certain sealing performance to prevent water ingress and damage during its operation.

[0044] Inside the device housing 1, there is also a network switch mounting structure 9 for installing a network switch, a sensor mounting structure 10 for installing sensors, an LED light driver board mounting structure 11 for installing an LED light driver board, and a circuit channel 12.

[0045] At one end of the device housing 1 away from the first camera mounting hole 7, there is a docking head mounting hole 13.

[0046] As shown Figure 2 in the figure, in this embodiment, above the first camera is a line channel 12. The network cables and power cables of the three cameras pass through the line channel 12 and are connected to other modules to obtain network and power supply, avoiding messy internal wires of the device; the LED light driving board is connected to the LED light on the left side inside the device housing 1 to provide a stable current for the LED light; the network switch is in the upper right of the device housing 1 and is communicatively connected to the three cameras, and the transmission of information such as photos is completed through the network switch; the sensor is in the upper left corner of the device housing 1 and is communicatively connected to the three cameras and the lighting module to provide a transmission signal for the entire device; the docking head can connect the internal components of the device housing 1 to an external PC to achieve information transfer.

[0047] The working process of a vehicle chassis non - distorted imaging device according to Embodiment 1 of the present utility model is as follows:

[0048] In this embodiment, the vehicle chassis non - distorted imaging device is set as a flattened rectangular structure and is placed at a reasonable position under the vehicle according to the actual situation for chassis image shooting, aiming to be able to shoot a comprehensive and clear image of the chassis;

[0049] When a vehicle passes by the vehicle chassis non - distorted imaging device, the sensor is triggered. The sensor is communicatively connected to the three cameras and the lighting module. The sensor outputs a signal to the LED light and the camera imaging system. At this time, the LED light driving board provides current for the LED light to make it constantly on and the camera starts to image;

[0050] After the camera images, the network switch communicatively connected to the three cameras transmits information such as photos to the PC through the docking head for the staff to check whether there are prohibited items;

[0051] After the vehicle drives away from the vehicle chassis non - distorted imaging device, the sensor returns to its initial state, the sensor no longer outputs a signal, the LED light is turned off, and the camera imaging is turned off, and the above steps are cycled in turn.

[0052] The connection structure and communication method between the above - mentioned components can all be implemented by existing technologies, and will not be elaborated here too much.

[0053] The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A vehicle chassis non-distortion imaging device, characterized in that: It comprises a device housing, wherein a side of the device housing facing the vehicle chassis is a first working surface, the first working surface is provided with an inclined surface structure, and the inclined surface structure is provided with two light module mounting structures for mounting light modules; The first working surface is also provided with a first camera mounting hole, a second camera mounting hole, and a third camera mounting hole for mounting cameras, the axis of the first camera mounting hole is perpendicular to the first working surface, and the second camera mounting hole and the third camera mounting hole are symmetrically arranged on both sides of the first camera mounting hole; the axes of the second camera mounting hole and the third camera mounting hole are respectively at an angle of 45° with the axis of the first camera mounting hole, and the axes of the first camera mounting hole, the second camera mounting hole, and the third camera mounting hole are all located in the same plane; The inclined surface of the inclined surface structure faces the first camera mounting hole.

2. The vehicle chassis non-distortion imaging device according to claim 1, characterized in that: The inclined surface structure is inclined at a certain angle toward the inside of the device housing, and the bottom of the inclined surface structure is at a certain distance from a side of the device housing away from the first working surface.

3. The vehicle chassis non-distortion imaging device according to claim 2, characterized in that: A first camera mounting hole, a second camera mounting hole, and a third camera mounting hole are provided on a first working surface between the bottom of the inclined surface structure and the end of the device shell.

4. The vehicle chassis non-distortion imaging device according to claim 1, characterized in that: The two light module mounting structures are parallel to each other and are symmetrically arranged on the inclined structure relative to the plane where the axis of the first camera mounting hole and the center line of the device shell are located.

5. The vehicle chassis non-distortion imaging device according to claim 4, characterized in that: The lighting module mounting structure includes a pressure plate mounting structure, a lens mounting hole, a sealing strip mounting structure, and an LED light source mounting hole.

6. The vehicle chassis non-distortion imaging device according to claim 5, characterized in that: The top of the LED light source mounting hole is equipped with an LED light source, the lens mounting hole is located at the upper part of the LED light source mounting hole and is equipped with a lens, the periphery of the lens mounting hole is provided with a sealing strip mounting structure equipped with a sealing strip, and the pressure plate mounting structure is located at the upper part of the lens mounting hole and is equipped with a pressure plate.

7. The vehicle chassis non-distortion imaging device according to claim 6, characterized in that: The pressing plate is sleeved on the outside of the lens, and the extruded sealing strip is detachably connected to the pressing plate mounting structure through bolts.

8. The vehicle chassis non-distortion imaging device according to claim 7, characterized in that: The sealing strip is a rubber strip.

9. The vehicle chassis distortion-free imaging device according to claim 1, characterized in that: The interior of the device housing is also provided with a network switch mounting structure for mounting a network switch, a sensor mounting structure for mounting a sensor, an LED lamp driver board mounting structure for mounting an LED lamp driver board, and a line channel.

10. The vehicle chassis non-distortion imaging device according to claim 1, characterized in that: A docking head mounting hole is provided at one end of the device housing away from the first camera mounting hole.

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