A sunlight simulation device for a head-up display system

Abstract

This utility model relates to the field of head-up display (HUD) technology, and particularly to a sunlight simulation device for HUD systems. The sunlight simulation device includes a base, a first rotating device, a second rotating device, a three-axis adjustment mechanism, a positioning module, a temperature testing component, and a controller. The base is sequentially equipped with the first rotating device, the second rotating device, and the three-axis adjustment mechanism from bottom to top. The three-axis adjustment mechanism is used to adjust the pitch angle of the HUD system under test placed on it. The temperature testing component is located within the HUD system under test. The controller contains the positioning module and is communicatively connected to it. The controller is communicatively connected to the first rotating device, the second rotating device, the three-axis adjustment mechanism, and the HUD system under test. This enables automatic sunlight tracking, improving testing efficiency and reliability.

Description

Technical Field

[0001] This utility model relates to the field of head-up display technology, and in particular to a sunlight simulation device for a head-up display system. Background Technology

[0002] A head-up display (HUD) is a technology that projects key driving information such as vehicle speed, navigation, and lane departure warning onto the windshield, aiming to allow drivers to access information without taking their eyes off the road, thereby improving driving safety. However, in bright sunlight, the visibility and reliability of the HUD may be compromised, impacting the driving experience and safety. Therefore, sunlight backlight testing has become an important method for identifying potential problems with HUDs under strong light conditions, providing a basis for product optimization and improvement, and ultimately enhancing user experience and device stability.

[0003] Current technology typically uses manual adjustment to focus sunlight onto the LCD screen inside the HUD and collect temperature rise data at the test point. However, because the HUD's azimuth and mirror angles need to be continuously adjusted based on the sun's altitude and azimuth during testing, manual adjustment suffers from response lag and insufficient accuracy, making it difficult for sunlight to be continuously focused on the LCD screen, thus affecting the accuracy of the test results. Utility Model Content

[0004] To solve the above-mentioned technical problems, this application discloses a sunlight simulation device for a head-up display system, which includes a base, a first rotating device, a second rotating device, a three-axis adjustment mechanism, a positioning module, a temperature testing component, and a controller;

[0005] The base is provided with a first rotating device, a second rotating device, and a three-axis adjustment mechanism in sequence from bottom to top; the three-axis adjustment mechanism is used to adjust the pitch angle of the head-up display system to be tested placed on it; the first rotating device can drive the second rotating device to rotate around a first axis; the second rotating device can drive the head-up display system to be tested to rotate around a second axis; the first axis is perpendicular to the second axis;

[0006] The temperature testing component is located within the head-up display system under test;

[0007] The controller is equipped with the positioning module and is communicatively connected to the positioning module;

[0008] The controller is communicatively connected to the first rotating device, the second rotating device, the three-axis adjustment mechanism, and the head-up display system under test.

[0009] In one feasible implementation, the light source of the sunlight simulation device is sunlight.

[0010] In one feasible implementation, it further includes a first angle adjustment device and a light source element disposed on the first angle adjustment device;

[0011] The light source is used to generate test light that simulates sunlight.

[0012] In one feasible implementation, the temperature testing component includes N temperature sensors; where N is an integer greater than or equal to 1.

[0013] The temperature sensor is used to measure the temperature at a preset test point within the head-up display system under test.

[0014] In one feasible implementation, N is greater than or equal to 2;

[0015] The N temperature sensors include at least two types of temperature sensors;

[0016] The types of temperature sensors include resistive temperature sensors and thermocouple temperature sensors.

[0017] In one feasible implementation, the first rotating device includes at least a first driving member, a first driving shaft, and a first platform connected in sequence;

[0018] The first driving component is provided on the base;

[0019] The first drive shaft is parallel to the first axis;

[0020] The first driving component is used to drive the first driving shaft to rotate horizontally, thereby causing the first storage platform connected to the first driving shaft to rotate horizontally;

[0021] The first shelf is equipped with the second rotating device.

[0022] In one feasible implementation, the second rotating device includes at least a second driving member, a second driving shaft, and a second platform connected in sequence;

[0023] The first shelf is equipped with the second driving component;

[0024] The second drive shaft is parallel to the second axis;

[0025] The second driving component is used to drive the second driving shaft to rotate, thereby driving the second platform connected to the first driving shaft to rotate;

[0026] The second shelf is equipped with the three-axis adjustment mechanism.

[0027] In one feasible implementation, a second lifting device is also included;

[0028] A second lifting device is provided between the base and the first rotating device;

[0029] The second lifting device is communicatively connected to the controller.

[0030] In one feasible implementation, a second lifting device is also included;

[0031] The second lifting device is equipped with a windshield;

[0032] The second lifting device is communicatively connected to the controller.

[0033] In one feasible implementation, a second angle adjustment device is also included;

[0034] The second lifting device is provided with a second angle adjustment device between itself and the windshield;

[0035] The second angle adjustment device is communicatively connected to the controller.

[0036] This application provides a sunlight simulation device for a head-up display (HUD) system, comprising a base, a first rotating device, a second rotating device, a three-axis adjustment mechanism, a positioning module, a temperature testing component, and a controller. The base is provided with the first rotating device, the second rotating device, and the three-axis adjustment mechanism arranged sequentially from bottom to top. The three-axis adjustment mechanism is used to adjust the pitch angle of the HUD system under test placed on it. The first rotating device can drive the second rotating device to rotate around a first axis; the second rotating device can drive the HUD system under test to rotate around a second axis; the first axis is perpendicular to the second axis; the temperature testing component is disposed within the HUD system under test; the controller contains the positioning module and is communicatively connected to the positioning module; the controller is communicatively connected to the first rotating device, the second rotating device, the three-axis adjustment mechanism, and the HUD system under test. This allows the sunlight simulation device to automatically track sunlight, achieving a high degree of automation, improving not only testing efficiency but also testing accuracy and reliability. Attached Figure Description

[0037] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0038] Figure 1 This is a simplified structural diagram of a sunlight simulation device exemplified by this application;

[0039] Figure 2 This is an example of an application scenario diagram of a sunlight simulation device for this application.

[0040] The following is supplementary explanation of the attached figures:

[0041] 1-Windshield; 2-Base; 3-First rotating device; 4-Second rotating device; 5-Controller; 6-Positioning module; 7-Heads-up display system to be tested. Detailed Implementation

[0042] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0043] The term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of this application. In the description of this application, it should be understood that the terms "upper," "lower," "top," "bottom," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Moreover, the terms "first," "second," etc., are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein.

[0044] When a numerical range is disclosed herein, the range is considered continuous and includes the minimum and maximum values ​​of the range, as well as every value between the minimum and maximum values. Furthermore, when the range refers to an integer, it includes every integer between the minimum and maximum values ​​of the range. Additionally, when multiple ranges are provided to describe a feature or characteristic, the ranges may be combined. In other words, unless otherwise specified, all ranges disclosed herein should be understood to include any and all subranges to which they are included. For example, a specified range from “1 to 10” should be considered to include any and all subranges between the minimum value 1 and the maximum value 10. Exemplary subranges of the range 1 to 10 include, but are not limited to, 1 to 6.1, 3.5 to 7.8, 5.5 to 10, etc.

[0045] Please see Figure 1 and Figure 2 , Figure 1 This is a simplified structural diagram of a sunlight simulation device exemplified by this application; Figure 2 This application provides an example of an application scenario diagram of a sunlight simulation device. The device includes a base 2, a first rotating device 3, a second rotating device 4, a three-axis adjustment mechanism, a positioning module 6, a temperature testing component, and a controller 5. The base 2 is provided with the first rotating device 3, the second rotating device 4, and the three-axis adjustment mechanism arranged sequentially from bottom to top. The three-axis adjustment mechanism is used to adjust the pitch angle of the head-up display system 7 placed on it. The first rotating device 3 can drive the second rotating device 4 to rotate around a first axis. The second rotating device 4 can drive the head-up display system 7 to rotate around a second axis. The first axis is perpendicular to the second axis. The temperature testing component is located within the head-up display system 7. The controller 5 contains the positioning module 6 and is communicatively connected to it. The controller 5 is communicatively connected to the first rotating device 3, the second rotating device 4, the three-axis adjustment mechanism, and the head-up display system 7. This allows for automatic light tracking, improves testing reliability, and also has the advantage of a simple overall structure.

[0046] In this embodiment, the positioning module 6 can specifically be a Global Positioning System (GPS) positioning module 6, a BeiDou positioning module 6, or a Global Navigation Satellite System (GNSS) positioning module 6. It is used to acquire the latitude and longitude information of the current location and send it to the controller 5. Simultaneously, the controller 5 acquires the current time information (including the current date and real-time time) through its built-in time acquisition module. Subsequently, based on the latitude and longitude information and the time information, an astronomical calendar algorithm is used to calculate the current azimuth and altitude angles of the sun, thereby controlling the rotating mirror and rotating platform of the head-up display system 7 to rotate to a position aligned with the sun, achieving automatic sunlight tracking. Specifically, the rotating mirror of the head-up display system 7 can be controlled to rotate to an angle perpendicular to the sunlight based on the solar altitude angle; the three-axis adjustment mechanism can be controlled to rotate to an angle consistent with the direction of the sunlight based on the solar azimuth angle.

[0047] It should be noted that the astronomical calendar algorithm is an existing method for calculating the solar azimuth and altitude angles, and this calculation method is not protected by this scheme.

[0048] In one exemplary embodiment, the light source used in this application is natural sunlight; in another exemplary embodiment, the light source used in this application is a simulated light source. Specifically, the sunlight backflow testing equipment further includes a first angle adjustment device and a light source component disposed on the first angle adjustment device; the light source component is used to generate test light rays simulating sunlight; the light source component is located on the other side of the windshield 1. Sunlight backflow testing based on the light source component allows for free setting of light source parameters and light source position as needed, and is unaffected by actual weather conditions, offering advantages in testing efficiency and reliability.

[0049] In this embodiment, the communication connection methods include wireless connection and wired connection. All the above-mentioned components can be wirelessly connected or wired connected. Alternatively, some devices can be wirelessly connected to the controller 5, such as the head-up display system 7 under test being wirelessly connected to the controller 5, while other devices are wired to the controller 5, such as the first rotating device 3 and the second rotating device 4 being wired to the controller 5, thus providing control reliability.

[0050] In one feasible implementation, the temperature testing component includes N temperature sensors; N is an integer greater than or equal to 1; the temperature sensors are used to measure the temperature at preset test points within the head-up display system 7 under test. Specifically, the temperature sensor data can be 1, 2, 3, 4, etc., and by setting temperature sensors corresponding to multiple preset test points, testing efficiency is improved. Subsequently, the controller 5 determines the temperature rise at the preset test points based on the acquired multiple temperature data, and, in conjunction with other relevant test parameters, judges the performance of the head-up display system under strong light conditions. Optionally, the temperature sensors can be specifically set on the display screen of the head-up display system.

[0051] In one feasible implementation, N is greater than or equal to 2; the N temperature sensors include at least two types; the types of temperature sensors include resistive temperature sensors and thermocouple temperature sensors. Using multiple temperature sensors can improve the reliability of the test results.

[0052] In one feasible embodiment, the first rotating device 3 includes at least a first driving member, a first driving shaft, and a first shelf connected in sequence; the first driving member is provided on the base 2; the first driving shaft is parallel to the first shaft; the first driving member is used to drive the first driving shaft to rotate horizontally, thereby driving the first shelf connected to the first driving shaft to rotate horizontally; the second rotating device 4 is provided on the first shelf.

[0053] In one feasible embodiment, the second rotating device 4 includes at least a second driving member, a second driving shaft, and a second platform connected in sequence; the second driving member is provided on the first platform; the second driving shaft is parallel to the second axis; the second driving member is used to drive the second driving shaft to rotate, thereby driving the rotation of the second platform connected to the first driving shaft; the three-axis adjustment mechanism is provided on the second platform.

[0054] In this embodiment of the application, both the first driving element and the second driving element can be a drive motor.

[0055] In one feasible implementation, the solar simulation equipment further includes a second lifting device; the second lifting device is provided between the base 2 and the first rotating device 3; the second lifting device is communicatively connected to the controller 5. This allows for automatic adjustment of the height of the head-up display device under test, enabling it to adapt to various testing scenarios and improving testing flexibility.

[0056] In one feasible implementation, the solar simulation device further includes a second lifting device; the second lifting device is equipped with a windshield 1; the second lifting device is communicatively connected to the controller 5. This allows for automatic adjustment of the height of the windshield 1, enabling it to adapt to various testing scenarios and improving testing flexibility.

[0057] In one feasible implementation, the solar simulation device further includes a second angle adjustment device; the second angle adjustment device is provided between the second lifting device and the windshield 1; the second angle adjustment device is communicatively connected to the controller 5. In this way, the tilt angle of the windshield 1 can be automatically adjusted to adapt to various testing scenarios, improving testing flexibility.

[0058] It should be noted that the first lifting device and the second lifting device mentioned above in this application are any devices that can achieve lifting. They can be motor type or cylinder type, and there is no limitation here. The first angle adjustment device and the second angle adjustment device are both devices that can achieve the adjustment of the preset orientation angle. They can be 360° adjustment or adjustment of the angle in a specific direction. They can be selected as needed, and there is no limitation here.

[0059] In this solution, the program method for controller 5 to control the rotation adjustment of the first and second angle adjustment devices and the program method for controlling the rotation of the first and second rotating devices 4 are both existing technologies that use controller 5 to control the rotation of adjustment devices and are not protected by this application. Similarly, the program method for controlling the lifting device based on controller 5 is also existing technology. What this application protects is the structure, setting position and connection relationship of each device and component. Based on this design layout, automatic tracking of test light can be realized, which greatly improves test efficiency and convenience. Compared with manual adjustment, it makes the adjustment more reliable and also ensures the reliability of test results.

[0060] The solar backflow testing equipment provided in this application has the following advantages compared to existing manual adjustment methods:

[0061] The controller 5 automatically calculates the solar altitude angle and azimuth angle, and controls the first and second rotating devices 4 and the HUD rotating mirror under test to rotate and align with the sun, realizing automatic and real-time tracking of sunlight. This avoids the problems of untimely response and poor accuracy that exist in manual adjustment, and ensures that sunlight can be continuously focused on the HUD LCD screen for a long time, thus improving the accuracy of test results.

[0062] It has achieved automation and unmanned operation, improved testing efficiency, and avoided the risk of physical injury to operators under the sun.

[0063] It can meet the need for long-term continuous tracking of sunlight, ensuring that sunlight is continuously focused on the LCD screen, and provides reliable technical support for HUD sunlight backflow testing.

[0064] The above description is only a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A sunlight simulation device for a head-up display system, characterized in that, It includes a base, a first rotating device, a second rotating device, a three-axis adjustment mechanism, a positioning module, a temperature testing component, and a controller; The base is provided with the first rotating device, the second rotating device, and the three-axis adjustment mechanism in sequence from bottom to top; the three-axis adjustment mechanism is used to adjust the pitch angle of the head-up display system to be tested placed on it; the first rotating device can drive the second rotating device to rotate around the first axis; the second rotating device can drive the head-up display system to be tested to rotate around the second axis; the first axis is perpendicular to the second axis; The temperature testing component is located within the head-up display system under test; The controller is equipped with the positioning module and is communicatively connected to the positioning module; The controller is communicatively connected to the first rotating device, the second rotating device, the three-axis adjustment mechanism, and the head-up display system under test.

2. The sunlight simulation device according to claim 1, characterized in that, The light source of the sunlight simulation device is sunlight.

3. The sunlight simulation device according to claim 1, characterized in that, It also includes a first angle adjustment device and a light source component disposed on the first angle adjustment device; The light source is used to generate test light that simulates sunlight.

4. The sunlight simulation device according to any one of claims 1-3, characterized in that, The temperature testing component includes N temperature sensors; where N is an integer greater than or equal to 1. The temperature sensor is used to measure the temperature at a preset test point within the head-up display system under test.

5. The sunlight simulation device according to claim 4, characterized in that, The N is greater than or equal to 2; The N temperature sensors include at least two types of temperature sensors; The types of temperature sensors include resistive temperature sensors and thermocouple temperature sensors.

6. The sunlight simulation device according to claim 1, characterized in that, The first rotating device includes at least a first driving member, a first driving shaft, and a first platform connected in sequence; The first driving component is provided on the base; The first drive shaft is parallel to the first axis; The first driving component is used to drive the first driving shaft to rotate horizontally, thereby causing the first storage platform connected to the first driving shaft to rotate horizontally; The first shelf is equipped with the second rotating device.

7. The sunlight simulation device according to claim 6, characterized in that, The second rotating device includes at least a second driving member, a second driving shaft, and a second platform connected in sequence; The first shelf is equipped with the second driving component; The second drive shaft is parallel to the second axis; The second driving component is used to drive the second driving shaft to rotate, thereby driving the second platform connected to the first driving shaft to rotate; The second shelf is equipped with the three-axis adjustment mechanism.

8. The sunlight simulation device according to claim 1, characterized in that, It also includes a first lifting device; The first lifting device is provided between the base and the first rotating device; The first lifting device is communicatively connected to the controller.

9. The sunlight simulation device according to claim 1, characterized in that, It also includes a second lifting device; The second lifting device is equipped with a windshield; The second lifting device is communicatively connected to the controller.

10. The sunlight simulation device according to claim 9, characterized in that, It also includes a second angle adjustment device; The second lifting device is provided with a second angle adjustment device between the second lifting device and the windshield; The second angle adjustment device is communicatively connected to the controller.

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