Automobile camera performance testing device

Abstract

The utility model provides an automobile camera performance testing device, which comprises a support frame and a driving assembly, the driving assembly is arranged on the support frame and comprises a driving motor and a screw rod assembly, and the driving motor is connected with the screw rod assembly; the dynamic light source assembly is connected with the lead screw assembly and is driven by the lead screw assembly and the driving motor to move, the control terminal is electrically connected with the driving assembly and the dynamic light source assembly, the dynamic light source assembly comprises a motor, a light source and a rotary graphic card, the rotary graphic card is located in the center of the light source, and the motor is connected with the rotary graphic card. And the rotary graph card is driven by the motor to rotate. Based on the performance testing device, the graphic card is driven by the motor to rotate, and the graphic card is supplemented with light by the light source, so that the space is saved, and the light supplement of the light source is more uniform. And then the dynamic light source assembly is used to complete the performance test of the dynamic blurring of the camera.

Description

Technical Field

[0001] The utility model relates to the field of automotive cameras, and particularly to a performance testing device for automotive cameras. Background Art

[0002] With the continuous development of autonomous driving assistance systems, the safety and effectiveness of automotive ADAS (Advanced Driving Assistance System) camera systems have become crucial. And this new technology development in the automotive industry means that the previous traditional automotive lens testing devices cannot meet the performance testing requirements of the current camera systems. Therefore, there is an urgent need for new testing devices to meet the current rapidly developing automotive camera testing requirements, especially for devices for dynamic blur testing of automotive cameras. Summary of the Utility Model

[0003] In view of the above technical problems, the utility model provides a performance testing device for automotive cameras.

[0004] To solve the above technical problems, the utility model provides a performance testing device for automotive cameras, which includes: a support frame, a driving component arranged on the support frame and including a driving motor and a lead screw assembly, the driving motor being connected to the lead screw assembly; a dynamic light source component connected to the lead screw assembly and moving under the drive of the lead screw assembly and the driving motor, and a control terminal electrically connected to the driving component and the dynamic light source component respectively. Among them, the dynamic light source component includes a motor, a light source, and a rotating graphic card. The rotating graphic card is located at the center of the light source, and the motor is connected to the rotating graphic card, and the rotating graphic card rotates under the drive of the motor.

[0005] In the performance testing device for automotive cameras provided by the utility model, it may also have the following features: the number of dynamic light source components is two, and the dynamic light source component further includes an installation box connected to the lead screw assembly.

[0006] In the performance testing device for automotive cameras provided by the utility model, it may also have the following features: the light source is arranged in the installation box, the rotating graphic card is located outside the light source, a through hole is provided at the center, the motor is arranged in the installation box and is connected to the rotating graphic card through the through hole.

[0007] In the performance testing device for automotive cameras provided by the utility model, it may also have the following features: a motion control card is installed in the driving motor, and the motion control card is connected to the control terminal through a communication line.

[0008] In the performance testing device for automotive cameras provided by the utility model, it may also have the following features: the communication line includes a serial connection line, a USB data line, or a network cable.

[0009] In the automotive camera performance testing device provided by the present utility model, it may further have the following feature: the control terminal is a computer.

[0010] In the automotive camera performance testing device provided by the present utility model, it may further have the following feature: the automotive camera performance testing device further includes a flashing light source assembly, which is connected to the lead screw assembly and electrically connected to the control terminal, and includes a constant light source, a flashing light source, and a normally closed light source.

[0011] In the automotive camera performance testing device provided by the present utility model, it may further have the following feature: the automotive camera performance testing device further includes a CDP light source assembly, which is connected to the lead screw assembly and electrically connected to the control terminal, and includes an installation box and a CDP light source arranged inside the installation box.

[0012] In the automotive camera performance testing device provided by the present utility model, it may further have the following feature: the driving motor is connected to one end of the lead screw assembly, and the other end of the lead screw assembly is respectively connected to the flashing light source assembly and the CDP light source assembly. The flashing light source assembly and the CDP light source assembly move towards the inner side of the support frame under the drive of the driving motor and the lead screw assembly.

[0013] In the automotive camera performance testing device provided by the present utility model, it may further have the following feature: when the flashing light source assembly and the CDP light source assembly move towards the inside of the support frame, the flashing light source assembly and the CDP light source assembly respectively form an angle with the vertical plane, and the angle is 0 to 30°.

[0014] The beneficial effects of the present utility model are as follows:

[0015] In the automotive camera performance testing device of the present utility model, it includes a support frame, a driving component, a dynamic light source component, and a control terminal. Among them, the driving component includes a driving motor and a lead screw assembly; the dynamic light source component is connected to the lead screw assembly and moves under the drive of the lead screw assembly. The control terminal is electrically connected to the driving component and the dynamic light source component respectively. The dynamic light source component includes a motor, a light source, and a rotating graphic card. And the rotating graphic card is located at the center of the light source, and the motor is connected to the rotating graphic card to drive the rotating graphic card to rotate. Based on this performance testing device, the graphic card is driven to rotate by the motor, and the light source fills light for the graphic card, saving space while making the light filling of the light source more uniform. Then, the dynamic light source component is used to complete the performance test of the dynamic blur of the camera.

[0016] In addition, the number of dynamic light source components is two. During performance testing, by controlling the rotation speed and angle of the graphics card, two groups of tests are formed with the two dynamic light source components. One group is to take pictures of a single light source component separately, obtain images for analysis; the other group is to take pictures of the two light source components, obtain images, and compare the data obtained from the two groups of images at the same time.

[0017] In addition, the dynamic light source component further includes an installation box, and the light source, the rotating graphics card, and the motor are all arranged inside the installation box. The installation box is connected to the lead screw assembly, and the lead screw assembly drives the installation box to move, thereby making the entire dynamic light source component move.

[0018] In addition, a motion control card is installed in the drive motor, and the motion control card is connected to the control terminal through a communication line. The control terminal controls parameters such as the rotation speed of the drive motor through the communication line and the motion control card.

[0019] Moreover, the performance testing device further includes a flashing light source component and a CDP light source component. The flashing modulation index (FMI), flashing detection index (FDI), modulation mitigation probability (MMP), etc. of the camera are tested through the flashing index of the flashing light source component. And, relevant data of the CDP light source of the camera are obtained through the CDP light source component to realize the relevant performance testing of the camera. Description of the Drawings

[0020] Figure 1 is a schematic structural diagram of the automotive camera performance testing device in this embodiment;

[0021] Figure 2 is a rear view schematic diagram of the automotive camera performance testing device in this embodiment;

[0022] Figure 3 is a schematic structural diagram of the flashing light source component in this embodiment;

[0023] Figure 4 is a schematic structural diagram of the CDP light source component in this embodiment;

[0024] Figure 5 is a schematic structural diagram of the rotating graphics card in the dynamic light source component in this embodiment;

[0025] Figure 6 is a schematic structural diagram of the light source in the dynamic light source component in this embodiment;

[0026] Figure 7 is a schematic structural diagram of the motor in the dynamic light source component in this embodiment. Detailed Embodiments

[0027] In order to make the technical problems, technical solutions and beneficial effects solved by the present utility model more clearly understood, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0028] The performance testing device for automotive cameras of the present utility model is applied to the field of performance testing of automotive camera systems, and realizes the CDP contrast detection probability test, Flicker test, and Motion Blur test of automotive cameras.

[0029] As Figure 1 、 2 shown, the performance testing device for automotive cameras includes a support frame 10, a flicker light source assembly 20, a CDP light source assembly 30, a dynamic light source assembly 40, and a control terminal 50.

[0030] The support frame 10 is a rectangular frame with a hollow interior, and universal wheels 12 are provided at the four corners of the bottom. Through the setting of the universal wheels 12, the movement and fixation of the support frame 10 are made more convenient.

[0031] A driving component is provided on the support frame 10. The driving component includes a driving motor 13 and several groups of lead screw assemblies 14. The driving motor 13 is arranged at the middle position inside the support frame 10, and several groups of lead screw assemblies 14 are respectively arranged in eight directions of up, down, left, right, upper right, lower right, upper left, and lower left of the driving motor 13. The eight groups of lead screw assemblies 14 are electrically connected to the driving motor 13, and the lead screw assembly 14 can move inward in the direction of the driving motor 13 under the drive of the driving motor 13.

[0032] As Figure 3 shown, the number of the flicker light source assemblies 20 is one group, and it is arranged in front of the driving motor 13. The flicker light source assembly 20 includes a constant light source 21, a flicker light source 22, and a normally closed light source 23. The constant light source 21, the flicker light source 22, and the normally closed light source 23 are sequentially arranged on the mounting positions on the support frame 10 from left to right. The flicker light source assembly 20 is connected to one group of lead screw assemblies 14, and the flicker light source assembly 15 can move towards the inside of the support frame 10 under the drive of the lead screw assembly 15.

[0033] During testing, by photographing the minimum and maximum frames of the flashing light source 22 in the middle of the test, relevant data of the Flashing Modulation Index (FMI) can be obtained by importing into relevant software according to relevant functions; by photographing the average pixel value of the flashing light source 22 in the middle of the test and the average pixel value of the normally closed light source 23, relevant data of the Flashing Detection Index (FDI) can be obtained; by photographing the average pixel value of the flashing light source 22 in the middle of the test and the average pixel value of the constantly lit light source 21, relevant data of the Modulation Mitigation Probability (MMP) can be obtained.

[0034] The CDP light source assembly 30 includes several CDP light source parts 31. In this embodiment, the number of CDP light source parts is 6. Among them, three CDP light source parts 31 are arranged above, above the left, and above the right in front of the drive motor 13; the other three CDP light source parts 31 are arranged below, below the left, and below the right in front of the drive motor 13.

[0035] Each CDP light source part 31 is respectively connected to one of the lead screw assemblies 14 through a joint axis and can move driven by the motor 14 and the lead screw assembly 14.

[0036] As Figure 4 shown, each CDP light source part 31 includes an installation box 32 and a CDP light source. The CDP light source is arranged inside the installation box 32. A grayscale chart 33 is arranged at the top of the installation box 32, and the grayscale chart covers the CDP light source. The grayscale chart 33 is a transmissive chart, and there are a large number of different grayscale color blocks on each chart, and two of them form a grayscale contrast.

[0037] In addition, light shields 34 are arranged at the four edges of the installation box 32. The light shields 34 extend outward and are open.

[0038] The number of dynamic light source assemblies 40 is two, and the two dynamic light source assemblies 40 are respectively arranged on the left and right sides in front of the drive motor 13. And each dynamic light source assembly 40 is respectively connected to a lead screw assembly 14 through a joint axis and then moves driven by the motor 14 and the lead screw assembly 14.

[0039] As Figures 5 to 7 shown, the dynamic light source assembly 40 includes an installation box 41, a motor 42, a light source 43, and a rotating chart 44.

[0040] The back of the installation box 41 is rotationally connected to the lead screw assembly 15. The motor 42, the light source 43, and the rotating chart 44 are arranged inside the installation box 41.

[0041] The motor 42 is a micro DC motor and is located at the center position inside the installation box 41. Then, the light source 43 is arranged outside the motor 42 on the installation box 41.

[0042] The center of the rotating card 44 is connected to the motor 42, and the rotating card 44 is located outside the light source 43. The rotating card 44 can rotate driven by the motor 42, and the light source 43 provides supplementary light for the rotating card 44.

[0043] During the dynamic blur performance test, the rotation speed and angle of the rotating card 44 are controlled by the motor 42. Two sets of tests are formed with the two dynamic light source components 40. One set is to take pictures of a single light source component alone, and the obtained images are analyzed; the other set is to take pictures of the two light source components, obtain images, and at the same time compare the data obtained from the two sets of images.

[0044] The control terminal 50 is a computer. The driving motor 13, the motor 42, and the driving components in each component are all provided with motion control cards. The control terminal 50 is connected to each motion control card through a communication line. The communication line includes a 232 serial connection line, a USB data line, or a network cable. The control terminal 50 controls the motion parameters of each component through the communication line.

[0045] In addition, when the flashing light source component 20 and the CDP light source component 30 do not move, the flashing light source component 20 and the CDP light source component 30 are located on the same vertical plane. When the driving motor 13 drives each lead screw component 14 to move, the flashing light source component 20 moves inward toward the inside of the support frame 10 driven by the lead screw component 14; at the same time, the CDP power supply 31 directly above and the CDP power supply 31 directly below the flashing light source component 20 also move inward. In addition, the other four CDP power supplies 31 contract diagonally according to the movement of the CDP power supply 31 directly above and directly below, and the dynamic light source component 40 also moves inward driven by the lead screw component 14. After the movement, an angle is formed between the CDP power supply 31 directly above the flashing light source component 20 and the vertical plane, and between the CDP power supply 31 directly below and the vertical plane. The range values of the above angles are 0 to 30°.

[0046] During the test, the driving component drives the flashing light source component 20 and each CDP power supply 31 to move, making them present different angles, so that the distortion during the wide-angle shooting of the camera is minimized; at the same time, CDP-related data of the camera is obtained using the CDP light source.

[0047] In the automotive camera performance testing device according to the above embodiments, it includes a support frame, a driving component, a dynamic light source component, and a control terminal. Among them, the driving component includes a driving motor and a lead screw component; the dynamic light source component is connected to the lead screw component and moves under the drive of the lead screw component. The control terminal is electrically connected to the driving component and the dynamic light source component respectively. The dynamic light source component includes a motor, a light source, and a rotating graphic card. And the rotating graphic card is located at the center of the light source, and the motor is connected to the rotating graphic card to drive the rotating graphic card to rotate. Based on this performance testing device, the graphic card is driven to rotate by the motor, and the light source fills light for the graphic card, which saves space and makes the light filling of the light source more uniform. Then, the dynamic light source component is used to complete the performance test of the dynamic blur of the camera.

[0048] In addition, the number of dynamic light source components is two. During performance testing, by controlling the rotation speed and angle of the graphic card, two groups of tests are formed with the two dynamic light source components. One group is to take pictures of a single light source component separately, obtain images for analysis; the other group is to take pictures of the two light source components, obtain images, and compare the data obtained from the two groups of images at the same time.

[0049] Furthermore, the dynamic light source component also includes an installation box, and the light source, the rotating graphic card, and the motor are all arranged in the installation box. The installation box is connected to the lead screw component, and the lead screw component drives the installation box to move, thereby driving the entire dynamic light source component to move.

[0050] In addition, a motion control card is installed in the driving motor, and the motion control card is connected to the control terminal through a communication line. The control terminal controls parameters such as the rotation speed of the driving motor through the communication line and the motion control card.

[0051] Moreover, this performance testing device also includes a flashing light source component and a CDP light source component. The flashing modulation index (FMI), flashing detection index (FDI), modulation mitigation probability (MMP), etc. of the camera are tested through the flashing index of the flashing light source component. And relevant data of the CDP light source of the camera are obtained through the CDP light source component to achieve relevant performance testing of the camera.

[0052] Obviously, those skilled in the art can make various changes and modifications to this application without departing from the spirit and scope of this application. Thus, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalent technologies, this application also intends to include these changes and modifications.

Claims

1. An automotive camera performance testing device, characterized in that, Comprising: Support frame Drive assembly, the drive assembly is arranged on the support frame and includes a drive motor and a lead screw assembly, and the drive motor is connected to the lead screw assembly; Dynamic light source assembly, the dynamic light source assembly is connected to the lead screw assembly and moves under the drive of the lead screw assembly and the drive motor, Control terminal, the control terminal is electrically connected to the drive assembly and the dynamic light source assembly respectively, Wherein, the dynamic light source assembly includes a motor, a light source and a rotating graphic card, the rotating graphic card is located at the center of the light source, the motor is connected to the rotating graphic card, and the rotating graphic card rotates under the drive of the motor.

2. The automotive camera performance testing device according to claim 1, wherein: The number of the dynamic light source assemblies is two, The dynamic light source assembly further includes an installation box, and the installation box is connected to the lead screw assembly.

3. The automotive camera performance testing device according to claim 2, wherein: The light source is arranged in the installation box, The rotating graphic card is located outside the light source, and a through hole is arranged at the center, The motor is arranged in the installation box and is connected to the rotating graphic card through the through hole.

4. The automotive camera performance testing device according to claim 1, wherein: A motion control card is installed in the drive motor, and the motion control card is connected to the control terminal through a communication line.

5. The automotive camera performance testing device according to claim 4, wherein: The communication line includes a serial connection line, a USB data line or a network cable.

6. The automotive camera performance testing device according to claim 1, wherein: The control terminal is a computer.

7. The automotive camera performance testing device according to claim 1, wherein: The automotive camera performance testing device further includes a flashing light source assembly, the flashing light source assembly is connected to the lead screw assembly and is electrically connected to the control terminal, and includes a constant light source, a flashing light source and a normally closed light source.

8. The automotive camera performance testing device according to claim 7, wherein: The automotive camera performance testing device further includes a CDP light source assembly, the CDP light source assembly is connected to the lead screw assembly and is electrically connected to the control terminal, and includes an installation box and a CDP light source arranged in the installation box.

9. The automotive camera performance testing device according to claim 8, wherein: The drive motor is connected to one end of the lead screw assembly, and the other end of the lead screw assembly is respectively connected to the flashing light source assembly and the CDP light source assembly, The flashing light source assembly and the CDP light source assembly move towards the inner side of the support frame under the drive of the drive motor and the lead screw assembly.

10. The automotive camera performance testing device according to claim 9, wherein: When the flashing light source assembly and the CDP light source assembly move towards the inside of the support frame, the flashing light source assembly and the CDP light source assembly respectively form an angle with the vertical plane, and the angle is 0 to 30°.

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