An eye point position determination device and system

Abstract

An embodiment of the present disclosure discloses an eye point position determination device and system. The eye point position determination device may include a calibration unit and a leveling unit. Among them, the calibration unit is disposed at a first set height relative to the vehicle floor inside the vehicle. The calibration unit is provided with positioning marks for a positioning component to determine the position of the eye point in the width direction of the vehicle according to the positioning marks. The leveling unit is disposed at a second set height relative to the vehicle floor inside the vehicle and is used to emit light for the positioning component to perform optical path alignment to determine the position of the eye point in the height and length directions of the vehicle. Wherein, the first set height is equal to the second set height within a threshold range.

Description

Technical Field

[0001] Embodiments of the present disclosure relate to the technical field of automotive cockpit design, and in particular, to an eye point position determination device and system. Background Art

[0002] With the improvement of automotive safety and driving convenience, the Head Up Display (HUD) has gradually become an important configuration in modern vehicles. The HUD projects key driving information onto the windshield in front of the driver, enabling the driver to obtain information such as speed, navigation, and warning signals without taking their eyes off the road surface, thereby improving driving safety and comfort.

[0003] However, the accuracy and user experience of the HUD system largely depend on the alignment of the HUD image with the driver's eye point position. Determining the eye point position is a key step in the design and debugging of the HUD system. In existing technologies, determining the eye point position usually relies on complex measurement devices and cumbersome debugging processes. These methods are not only time-consuming but also costly, and it is particularly difficult to confirm the HUD eye point in non-production line environments, such as real vehicle outdoor environments or non-production line environments. Summary of the Invention

[0004] In view of this, embodiments of the present disclosure are expected to provide an eye point position determination device and system, which can solve the technical problem of inaccurate determination of the eye point position in the prior art.

[0005] The technical solution of the embodiments of the present disclosure is implemented as follows:

[0006] In a first aspect, an eye point position determination device provided by an embodiment of the present disclosure includes:

[0007] A calibration unit, disposed at a first set height relative to the vehicle floor inside the vehicle, and the calibration unit is provided with a positioning mark for the positioning component to determine the position of the eye point in the width direction of the vehicle according to the positioning mark;

[0008] A leveling unit, disposed at a second set height relative to the vehicle floor inside the vehicle, for emitting light for the positioning component to perform optical path alignment to determine the position of the eye point in the height and length directions of the vehicle;

[0009] Wherein, the first set height and the second set height are equal within a threshold range.

[0010] In a second aspect, an eye point position determination system provided by an embodiment of the present disclosure includes:

[0011] A calibration unit, disposed at a first set height relative to the vehicle floor inside the vehicle;

[0012] A positioning component for determining the position of the eye point in the width direction of the vehicle according to the positioning marks on the calibration part;

[0013] A leveling part is arranged at a second set height relative to the vehicle floor inside the vehicle, and is used for emitting light for the positioning component to perform optical path alignment to determine the position of the eye point in the height direction of the vehicle;

[0014] Wherein, the first set height and the second set height are equal within a threshold range.

[0015] The embodiments of the present disclosure provide an eye point position determination device and system; through the collaborative work of the calibration part and the leveling part, the accurate positioning of the eye point in three dimensions (length, width, and height) is realized, improving the accuracy and reliability of the HUD system. The design of this device allows for quick setup and adjustment inside the vehicle, without the need for complex measuring tools or disassembling vehicle components, simplifying the process of determining the eye point position. Due to the use of positioning marks and light alignment, the dependence on professional equipment is reduced, the efficiency of determining the eye point position is improved, and the debugging time is shortened. The device design takes into account the adaptability of different vehicle models. By setting different heights and using positioning marks, the device can be applied to a variety of vehicle configurations. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the composition of an in-vehicle system provided by an embodiment of the present disclosure.

[0017] Figure 2 It is an exemplary top view of a vehicle provided by the present disclosure.

[0018] Figure 3 It is an exemplary perspective view from the driver's seat of the vehicle provided by the present disclosure.

[0019] Figure 4 It is a schematic diagram of an eye point position determination device provided by an embodiment of the present disclosure.

[0020] Figure 5 It is a schematic diagram of a positioning image provided by an embodiment of the present disclosure.

[0021] Figure 6 It is a schematic diagram of a captured image provided by an embodiment of the present disclosure.

[0022] Figure 7 It is another schematic diagram of a captured image provided by an embodiment of the present disclosure.

[0023] Figure 8 It is a schematic diagram of a vehicle coordinate system provided by an embodiment of the present disclosure.

[0024] Figure 9 Schematic diagram of a mounting plate provided by an embodiment of the present disclosure.

[0025] Figure 10 Schematic diagram of another eye point position determination device provided by an embodiment of the present disclosure.

[0026] Figure 11 Schematic diagram of yet another eye point position determination device provided by an embodiment of the present disclosure.

[0027] Figure 12 Schematic diagram of still another eye point position determination device provided by an embodiment of the present disclosure.

[0028] Figure 13 Schematic diagram of an eye point position determination system provided by an embodiment of the present disclosure.

[0029] Through the above-mentioned drawings, specific embodiments of the present disclosure have been shown, and more detailed descriptions will be given hereinafter. These drawings and textual descriptions are not intended to limit the scope of the concept of the present disclosure in any way, but to illustrate the concept of the present disclosure to those skilled in the art by referring to specific embodiments. Detailed implementation manners

[0030] Now, example embodiments will be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in various forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that the present disclosure will be more complete and comprehensive, and the concept of the example embodiments will be fully conveyed to those skilled in the art. The described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments.

[0031] In addition, the accompanying drawings are only schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus their repeated description will be omitted. Some of the block diagrams shown in the drawings are functional entities and do not necessarily correspond to physically or logically independent entities. These functional entities can be implemented in software form, or in one or more hardware modules or integrated circuits, or in different networks and / or processor devices and / or microcontroller devices.

[0032] As Figure 1 shown, the vehicle-mounted system 100 includes: a navigation subsystem 110, an environmental detection device group 120 that acquires the environment in which the vehicle is located during vehicle travel, a vehicle travel state detection device group 130, a data processing unit 140, a display control unit 150, and a display unit 160. The above-mentioned components or device groups are coupled together through a communication bus 12. In some examples, the communication bus 12 is used for connection communication between the above-mentioned components or device groups. It should be noted thatFigure 1 Only a part of the vehicle system 100 is shown, rather than all of the components of the vehicle system 100.

[0033] In Figure 1 , the navigation subsystem 110 includes: a positioning component 111 and a map information storage device 112. Among them, the positioning component 111 can locate the position of the vehicle based on positioning systems such as the global positioning system (GPS), China's Beidou system, Russia's GLONASS system, Europe's Galileo system, Japan's Quasi-Zenith Satellite System (QZSS), and India's Indian Regional Navigation Satellite System (IRNSS), and obtain the position information of the vehicle. The map information storage device 112 stores map information, can obtain a navigation path leading to the destination according to the position information obtained from the positioning component 111, and display the position information and the navigation path in a map application.

[0034] In Figure 1 , the environmental detection device group 120 may include a vehicle-mounted communication device 121, a radar 122, a laser rangefinder 123, and a camera 124. These devices can obtain environmental data representing the surrounding environmental conditions of the vehicle.

[0035] The vehicle-mounted communication device 121 can communicate wirelessly with one or more devices directly or via a communication network. These devices that can communicate with the vehicle-mounted communication device 121 can be other vehicles, roadside machines or roadside platforms, or mobile terminal devices used by the vehicle occupants. In some examples, the vehicle-mounted communication device 121 can use 3G cellular communication, such as code division multiple access (CDMA), EVD0, global system for mobile communications (GSM) / general packet radio service (GPRS), or 4G cellular communication, such as long term evolution (LTE), or 5G cellular communication. In some examples, the vehicle-mounted communication device 121 can also communicate with a wireless local area network (WLAN) using WiFi. In some embodiments, the vehicle-mounted communication device 121 can also communicate directly with devices using an infrared link, Bluetooth, or ZigBee. In some examples, the vehicle-mounted communication device 121 can also communicate with devices using other wireless protocols.

[0036] The radar 122 is used to sense objects in the surrounding environment of the vehicle, and can also be used to sense the speed and / or forward direction of these objects. In some examples, the radar 122 can use electromagnetic waves or lasers as the medium, and detect objects based on the time-of-flight (TOF) method or the phase-shift method, and detect the position of the detected object, the distance to the detected object, and the relative speed. In some examples, in order to be able to detect objects located in front of, behind, or on the side of the vehicle, the radar 122 can be configured at an appropriate position outside the vehicle.

[0037] The laser rangefinder 123 can use lasers to sense objects in the environment where the vehicle is located. In some embodiments, the laser rangefinder 123 can include one or more laser sources, a laser scanner, and one or more detectors, as well as other system components.

[0038] The camera 124 can be used to capture multiple images of the surrounding environment of the vehicle. The camera 124 can be a static camera or a video camera. In some examples, in order to obtain an external image of the vehicle, the camera 124 can be located at an appropriate position outside the vehicle. For example, in order to obtain an image in front of the vehicle, the camera 124 can be configured close to the front windshield inside the vehicle. Alternatively, the camera 124 can be configured around the front bumper or radiator grille. In some examples, in order to obtain an image behind the vehicle, the camera 124 can be configured close to the rear window glass inside the vehicle. Alternatively, the camera 124 can be configured around the rear bumper, trunk, or tailgate. In some examples, in order to obtain an image on the side of the vehicle, the camera 124 can be configured close to at least one of the side windows inside the vehicle. Alternatively, the camera 124 can be configured around the side mirror, fender, or door.

[0039] In Figure 1 the vehicle driving state detection device group 130 can include: a steering angle sensor 131 for detecting the steering angle of the vehicle, a vehicle speed sensor 132 for detecting the driving speed of the vehicle, and an acceleration sensor 133 for detecting the acceleration applied to the vehicle. In some examples, as shown by the dashed box, it can also include an inertial sensor 134 for detecting the position and orientation changes of the vehicle based on inertial acceleration. In the specific implementation process, the inertial sensor 134 can be a combination of the acceleration sensor 133 and a gyroscope.

[0040] In Figure 1In this case, the data processing unit 140 can be implemented as a computing system including a memory, a processor, an input / output interface, and a bus connecting these components. In some examples, the data processing unit 140 causes the processor to execute multiple commands through program instructions stored in the memory to process the data obtained from the navigation subsystem 110, the environmental detection device group 120, and the vehicle driving state detection device group 130. In some examples, the data processing unit 140 can also control the driving of the vehicle partially or entirely based on the processed data.

[0041] In Figure 1 this case, the display control unit 150 is used to control the multiple display units 160. The display control unit 150 can be used to deliver images to the display units for display. The display unit 160 can be a display screen inside the vehicle, a projection device, etc., or can also be the display screen of the HUD display device inside the vehicle, such as the windshield.

[0042] In Figure 1 this case, the data processing unit 140, the display control unit 150, and the display unit 160 can serve as the main body of a HeadUp Display (HUD) device. The display control unit 150 can process the received data to obtain the display information to be displayed after receiving the data processed by the data processing unit 140, or after receiving the data obtained from the navigation subsystem 110, the environmental detection device group 120, and the vehicle driving state detection device group 130, and project the display information onto the windshield of the vehicle through the display unit 160 for display.

[0043] The Head Up Display (HUD) device projects the light of the display image output by the image source onto the imaging window (such as an imaging plate, windshield, etc.) through, for example, a reflective optical design, so as to display vehicle state information such as vehicle speed and fuel level, as well as indication information such as navigation and danger warnings at an appropriate position in front of the driver. Thereby, the driver can obtain relevant information such as vehicle speed and fuel level without deviating the line of sight from the road surface ahead, and thus can improve the driving safety factor and driving experience.

[0044] Specifically, referring to Figure 2 and Figure 3 this, the HUD device can be installed on the vehicle, and the vehicle includes a windshield 204 located at the front of the vehicle. The driver and passengers inside the vehicle cabin 208 can see the front of the vehicle through the windshield 204.

[0045] In Figure 3In [the situation], the windshield 204 is visually located above the vehicle instrument panel 206. The driver can turn the steering wheel 210 in the passenger compartment 208 to steer the vehicle, such as changing lanes, merging, and parking the vehicle. In some embodiments, the steering wheel 210 can be retracted or omitted.

[0046] The HUD system is designed to provide a way to view key driving information without having to look down. To achieve this goal, the HUD image needs to be precisely projected to the driver's eye point position, that is, the spatial position where the driver's eyes are located.

[0047] The accuracy of the eye point position directly affects the viewing effect of the HUD image. If the eye point position is inaccurate, it may cause image ghosting, distortion, and even affect the driver's vision and driving safety.

[0048] Traditional HUD eye point positioning methods rely on complex measurement devices and cumbersome debugging processes. These methods are not only time-consuming and costly, but also particularly difficult to confirm the HUD eye point in non-production line environments, such as in-vehicle outdoor environments or non-production line environments.

[0049] In an actual vehicle environment, due to installation tolerances and differences in components such as the windshield, the HUD image may be distorted. In the absence of a specific production line, it is difficult to process and collect the HUD image, and subsequent data processing and image analysis cannot be carried out. Existing methods usually require removing the driver's seat, using a tape measure or other measurement tools for simple measurement, and then fixing the collected image with a camera at the theoretical eye point. Due to measurement tool errors and the manual search for measurement benchmarks, there are large deviations in the positioning of the theoretical eye point, resulting in large deviations between the collected data and the theoretical data, affecting the collection accuracy.

[0050] Based on this, the present disclosure first provides an eye point position determination device. Figure 4 It shows that the eye point position determination device can include a calibration part 1 and a leveling part 2. The calibration part 1 is set at a first set height relative to the vehicle floor inside the vehicle, and the leveling part 2 is set at a position of a second set height relative to the vehicle floor inside the vehicle. Among them, the first set height and the second set height are equal within a threshold range. The above threshold range can be 2 cm, 5 cm, etc., or the ratio of the difference between the first set height and the second set height is less than 10%, 5%, etc., and can also be customized according to user needs, which will not be elaborated in this exemplary embodiment.

[0051] A positioning mark is provided on the calibration part 1, and the positioning component 11 can determine the position of the eye point in the length and / or width direction of the vehicle according to the positioning mark.

[0052] In some examples, the above-mentioned calibration unit 1 may be located on the optical path between the position of the HUD imaging and the approximate position of the eye point, that is, the above-mentioned calibration unit 1 may be arranged between the headrest of the driver's seat and the HUD imaging position. Specifically, the calibration unit 1 may be arranged at a set position. The first set height of the set position from the vehicle floor, the position from the driver's side window glass, and the position from the vehicle windshield can be set according to different vehicles. The specific data will not be elaborated in this example. The setting of the specific position can make the calibration unit 1 located between the set position of the eye point and the HUD display area.

[0053] Optionally, the above-mentioned calibration unit 1 may be a calibration plate. Refer to Figure 5 , the calibration plate may include a positioning image. The positioning image may be composed of multiple straight lines, or in the shape of a "field" character, or can be customized according to user needs, which will not be elaborated in the implementation manner of this example.

[0054] Optionally, the above-mentioned positioning mark may also be a circle, a square or other shapes, which are not specifically limited in this example.

[0055] In some examples, when the positioning mark on the above-mentioned calibration unit 1 is a positioning image, the above-mentioned positioning component 11 may be an imaging device. The imaging device captures the acquisition image of the above-mentioned positioning image, and determines the position of the eye point in the width direction of the vehicle through the comparison between the acquisition image and the positioning image. Further, the pitch angle of the above-mentioned imaging device may also be determined according to the comparison between the acquisition image and the positioning image, that is, the observation pitch angle at the position of the eye point.

[0056] For example, refer to Figure 6 , if the acquisition image is shifted to the left compared with the positioning image, the position of the eye point is in the azimuth on the right side of the above-mentioned positioning component 11. Refer to Figure 7 , if the acquisition image is shifted to the right compared with the positioning image, the position of the eye point is in the position on the left side of the above-mentioned positioning component 11. Adjust the position of the above-mentioned positioning component 11 until the acquisition image obtained by the above-mentioned positioning component 11 is aligned with the above-mentioned positioning image, then define the position of the positioning component 11 in the width direction as the position of the eye point in the vehicle width direction.

[0057] Continue to refer to Figure 7 , the position of the eye point will also shift upward. After determining the position in the height direction according to the above-mentioned leveling unit 2, the upward shift of the position of the eye point is determined by the pitch angle of the imaging device. Therefore, the pitch angle of the above-mentioned imaging device can be adjusted to determine the optical path direction of the position of the eye point.

[0058] It should be noted that, refer to Figure 8, the width direction is the direction of the Y-axis of the vehicle in the vehicle coordinate system, the length direction is the direction of the X-axis in the vehicle coordinate system, and the height direction is the direction of the Z-axis of the vehicle in the vehicle coordinate system.

[0059] In some examples, the above positioning component 11 may further include a laser emitter and an angle measuring device (not shown). At this time, the above positioning mark may be a circle or a black dot, etc. The above laser emitter may be used to emit laser light to irradiate the above positioning mark. When the positioning mark is irradiated, the angle measuring device is used to measure the angle between the above laser and the vehicle width direction, and then the position of the vehicle in the width direction may be determined according to the above angle. Specifically, when the above angle is within a preset range of 90 degrees, the position of the positioning component 11 in the vehicle width direction is determined as the position of the eye point in the width direction.

[0060] In some examples, referring to Figure 9 , the above eye point position determining device may further include a mounting plate 3 and a fixing portion 4. The above mounting plate 3 may be a rectangular plate-like structure, including a first end and a second end. The first end and the second end are respectively the ends where the short sides of the rectangle are located. The mounting portion is used to fix the above calibration portion 1 and the leveling portion 2.

[0061] In some examples, the number of the above calibration portions 1 may be one. Referring to Figure 10 , when the above calibration portion 1 is one, the above calibration portion 1 is fixed to the first end of the above mounting plate 3, and the above leveling portion 2 is mounted to the second end, which can improve the stability of the eye point position determining device.

[0062] The number of the calibration portions 1 may also be two. Referring to Figure 11 , they are respectively arranged at the first end and the second end of the above mounting plate 3, and the above leveling portion 2 is mounted at the middle position of the above mounting plate 3, which can improve the stability of the eye point position determining device. At the same time, it can enable the above eye point position determining device to adapt to different vehicles, left-hand drive or right-hand drive.

[0063] The fixing portion 4 is connected to the above mounting plate 3 and is used to fix the above mounting plate 3 in the vehicle. When the fixing portion 4 fixes the mounting plate 3 in the above vehicle, the above calibration portion 1 can be fixed above the driver's seat of the vehicle and at a first set height position from the vehicle floor.

[0064] In some examples, the above fixing portion 4 may be a clamping mechanism, which is arranged on both sides of the mounting plate 3. The above mounting plate 3 is fixed on the sun visor of the vehicle through the clamping mechanism. When the eye point position determining device is clamped on the sun visor, the above sun visor is in a position perpendicular to the vehicle floor.

[0065] In some examples, the leveling part 2 is used to emit light for the positioning component 11 to align the optical path to determine the position of the eye point in the length and height directions of the vehicle. Specifically, the light emitted by the leveling part 2 irradiates to a set position, and the position of the positioning component 11 is moved. When the positioning component 11 is irradiated by the light emitted by the leveling part 2, the position of the positioning component 11 in the height and length directions of the vehicle is determined as the position of the eye point in the height and length directions.

[0066] Optionally, the light emitted by the leveling part 2 can be a laser, which can better perform positioning.

[0067] In some examples, referring to Figure 11 , the leveling part 2 may include a light-emitting structure 22 and a leveling structure 21. The leveling structure 21 may include at least two leveling mechanisms. The leveling mechanism may include a fixing plate and a leveling plate. The fixing plate can be fixed to the mounting plate 3 by bolts. The fixing plate is arranged parallel to the mounting plate 3, and the leveling plate is perpendicularly connected to the fixing plate. The fixing plates of adjacent two leveling mechanisms are respectively arranged on both sides of the mounting plate 3. The leveling part 2 is installed between the two leveling plates, and the two leveling plates cooperate with each other so that the light emitted by the light-emitting structure 22 can be in a direction parallel to the bottom plate.

[0068] In some examples, the leveling part 2 may also be a leveling device such as a spirit level, which will not be elaborated in this example embodiment.

[0069] In some examples, referring to Figure 12 , a strengthening structure 5 may also be provided on the mounting plate 3 to increase the strength of the mounting plate 3. By setting the strengthening structure 5, while ensuring the strength of the mounting plate 3, the thickness and mass of the mounting plate 3 can be reduced, thereby reducing the difficulty of fixing the mounting plate 3 in the vehicle.

[0070] It should be noted that the calibration part 1, the leveling part 2 and the mounting plate 3 can all be connected by bolts, or can also be connected by means such as strong glue adhesion and magnetic attraction, which will not be elaborated in this example embodiment.

[0071] The eye point position determination device provided by the embodiment of the present disclosure can quickly and accurately determine the eye point position of the HUD system inside the vehicle through the collaborative work of the calibration part 1 and the leveling part 2. The calibration part 1 is arranged at a first set height relative to the vehicle bottom plate inside the vehicle and is equipped with positioning marks, while the leveling part 2 is arranged at a second set height and is used to emit light for the positioning component 11 to align the optical path. This design allows for precise positioning of the eye point position in three dimensions (length, width and height), thereby improving the accuracy and reliability of the HUD system.

[0072] The design of this device allows for quick setup and adjustment inside the vehicle without the need for complex measuring tools or disassembling vehicle components. By using positioning marks and light alignment, the reliance on professional equipment is reduced, the efficiency of eye point position determination is improved, the debugging time is shortened, and costs are also reduced.

[0073] In addition, the design of this device also takes into account the adaptability to different vehicle models. By setting different heights and using positioning marks, the device can be applied to a variety of vehicle configurations. The threshold range, the shape and style of the positioning marks can also be customized according to user needs, increasing the flexibility of the device.

[0074] The stability of the device is enhanced by the symmetrically arranged fixing part 4 and calibration part 1, as well as the leveling part 2 located between the two calibration parts 1. The design of the fixing part 4, such as the clamping mechanism, makes the device easy to install inside the vehicle, such as clamping on the sun visor of the vehicle.

[0075] The leveling part 2 includes a light-emitting structure 22 and a leveling structure 21, ensuring that the emitted light is parallel to the vehicle floor, which helps to accurately determine the position of the eye point in the height and length directions. The strengthening structure 5 on the mounting plate 3 is used to increase the strength of the mounting plate 3, while reducing the thickness and mass of the mounting plate 3, reducing the installation difficulty.

[0076] Furthermore, referring to Figure 13 , the present disclosure also provides an eye point position determination system, including a calibration part 1, a positioning component 11, and a leveling part 2. Among them, the calibration part 1 is arranged at a first set height relative to the vehicle floor inside the vehicle; the positioning component 11 is used to determine the position of the eye point in the width direction of the vehicle according to the positioning marks on the calibration part 1; the leveling part 2 is arranged at a second set height relative to the vehicle floor inside the vehicle, and is used to emit light for the positioning component 11 to perform optical path alignment to determine the position of the eye point in the height direction of the vehicle; wherein, the first set height is equal to the second set height within a threshold range.

[0077] It should be noted that the specific details of the above calibration part 1, positioning component 11, and leveling part 2 can refer to the description of the eye point position determination device, and will not be elaborated here.

[0078] When determining the above eye point position, the leveling part 2 can first determine the position of the positioning component 11 in the Z-axis direction and X-axis direction, that is, the position in the length direction and height direction, and then the positioning component 11 determines the position of the positioning component 11 in the width direction of the vehicle according to the positioning marks. After the position of the positioning component 11 is determined, the position where the positioning component 11 is located can be determined as the eye point position.

[0079] In the above embodiments, the descriptions of the respective embodiments each have their own emphasis. For parts not detailed in a certain embodiment, reference may be made to the relevant descriptions of other embodiments. The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as falling within the scope described in this specification.

[0080] Those skilled in the art will readily conceive of other embodiments of the present disclosure after considering the specification and practicing the invention herein. The present disclosure is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include known common knowledge or conventional technical means in the technical field not claimed in the present disclosure.

[0081] It should be understood that the present disclosure is not limited to the exact structures described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present disclosure is only limited by the appended claims.

Claims

1. An eye point position determination device, characterized in that, Comprising: A calibration part, which is arranged at a first set height relative to the vehicle floor in the vehicle, so that the calibration part is located on the optical path between the HUD imaging position and the approximate position of the eye point. The calibration part is provided with a positioning mark for the positioning component to determine the position of the eye point in the width direction of the vehicle according to the positioning mark; A leveling part, which is arranged at a second set height relative to the vehicle floor in the vehicle, and is used for emitting light for the positioning component to perform optical path alignment to determine the position of the eye point in the height and length directions of the vehicle; Wherein, the first set height is equal to the second set height within a threshold range; Wherein, the eye point position determination device further comprises: A mounting plate for fixing the calibration part and the leveling part; A fixing part for fixing the mounting plate in the vehicle; The eye point position determination device includes two symmetrically arranged fixing parts and the calibration part; The leveling part is located between the two calibration parts; The fixing part includes: A clamping mechanism, which clamps the sun visor of the vehicle to fix the mounting plate in the vehicle.

2. The eye point position determination device according to claim 1, characterized in that, The positioning mark includes a positioning image, and the positioning component includes an imaging device; The positioning mark can be used for the imaging device to acquire a captured image, and determine the position of the eye point in the width direction of the vehicle by comparing the positioning image with the captured image.

3. The eye point position determination device according to claim 2, wherein The imaging device includes an image comparison mark, so that a comparison area is included in the captured image; The positioning component can adjust the pitch angle of the imaging device according to the positioning image and the comparison area to determine the optical path direction of the eye point.

4. The eye point position determination device according to claim 1, characterized in that, The positioning component includes: A laser emitter for emitting laser light to irradiate the positioning mark; An angle measuring device for measuring the angle between the laser and the width direction of the vehicle when the laser of the laser emitter irradiates the positioning mark; The positioning component determines the position of the eye point in the width direction of the vehicle according to the angle.

5. The eye point position determination device according to claim 1, characterized in that, The leveling part includes: A light emitting structure, which is installed on the mounting plate and is used for emitting light; A leveling structure, which is installed between the mounting plate and the light emitting structure and is used for making the light emitted by the light emitting structure parallel to the vehicle floor.

6. The eye point position determination device according to claim 5, characterized in that, The leveling structure includes: At least two leveling mechanisms, and the leveling mechanism includes a fixing plate and a leveling plate; The fixing plates of adjacent two leveling mechanisms are respectively arranged on both sides of the mounting plate, the fixing plate is arranged parallel to the mounting plate, and the leveling plate is perpendicular to the mounting plate.

7. An eye point position determination system, characterized in that Comprising: A calibration part, which is arranged at a first set height relative to the vehicle floor in the vehicle, so that the calibration part is located on the optical path between the HUD imaging position and the approximate position of the eye point; A positioning component for determining the position of the eye point in the width direction of the vehicle according to the positioning mark on the calibration part; A leveling part, which is arranged at a second set height relative to the vehicle floor in the vehicle, and is used for emitting light for the positioning component to perform optical path alignment to determine the position of the eye point in the height and length directions of the vehicle; Wherein, the first set height is equal to the second set height within a threshold range; Among them, the eye point position determination device further includes: A mounting plate for fixing the calibration part and the leveling part; A fixing part for fixing the mounting plate in the vehicle; The eye point position determination device includes two symmetrically arranged fixing parts and the calibration part; The leveling part is located between the two calibration parts; The fixing part includes: A clamping mechanism that clamps the sun visor of the vehicle to fix the mounting plate in the vehicle.

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