CN219268944U

CN219268944U - Positioning alignment device and display calibration equipment

Info

Publication number: CN219268944U
Application number: CN202223556850.9U
Authority: CN
Inventors: 邓远博
Original assignee: Hebei Lingpai Intelligent Technology Co ltd
Current assignee: Hebei Lingpai Intelligent Technology Co ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-06-27
Anticipated expiration: 2032-12-30

Abstract

The application relates to the technical field of projection display, in particular to a positioning and aligning device and display calibration equipment. The application is provided with nimble extending structure for location marking plate, and extending structure passes through the bracket and realizes relatively fixed, and extending structure can drive location marking plate and be in the different positions before measuring glass have the first position that the adaptation left side was driven and is shown the demarcation and the second position that the adaptation right side was driven and show the demarcation. The method and the device can be compatible with various types of vehicles including left driving and right driving, and are easy to switch and high in flexibility.

Description

Positioning alignment device and display calibration equipment

Technical Field

The application relates to the technical field of projection display, in particular to a positioning and aligning device and display calibration equipment.

Background

HUD (Head Up Display) is gradually applied to vehicle-mounted Display, and vehicle state, navigation information and the like can be directly projected onto a front windshield of a vehicle, so that convenience in information watching by a driver is improved. However, the projection display conditions of HUDs on different vehicle glasses are different, whether the HUDs meet the product requirements or not is judged by human eyes only, and the HUDs are obviously inaccurate and low in efficiency. The existing detection equipment can only calibrate the projection display of the HUD on the glass of the same type of vehicle, and if the projection display conditions of different types of vehicles are required to be calibrated, the detection equipment needs to be replaced integrally, so that the flexibility is poor.

Disclosure of Invention

The purpose of the application is to provide a location alignment device and show calibration equipment, solved among the prior art HUD projection display mark debugging trouble, the lower technical problem of flexibility.

In order to solve the technical problems, the application adopts the following technical scheme:

in a first aspect, there is provided a positioning alignment device comprising:

the bracket arm is used for extending to the front of the measuring glass, and the measuring glass is fixed when the display standard is displayed;

the telescopic structure is connected with the supporting arm and has a function of moving at least along the width direction of the measuring glass;

the positioning identification plate is fixed at the free end of the telescopic structure through the base;

the positioning identification plate is driven by the telescopic structure to move, and has a first position suitable for left driving display calibration and a second position suitable for right driving display calibration.

In an optional implementation manner of the first aspect, the telescopic structure includes a first telescopic rod and a second telescopic rod that are parallel to each other, one ends of the first telescopic rod and the second telescopic rod are fixed on the suspension end of the bracket arm, and the other ends of the first telescopic rod and the second telescopic rod are jointly fixed on the base of the positioning identification plate so as to drive the movement of the positioning identification plate.

In an alternative embodiment of the first aspect, the telescopic structure is driven by a motor.

In an optional implementation manner of the first aspect, the positioning identification plate is connected with the base through a rotating structure, and the positioning identification plate has a first elevation angle adapted to a first vehicle type display calibration and a second elevation angle adapted to a second vehicle type display calibration under the drive of the movement of the rotating structure.

In an alternative embodiment of the first aspect, the rotating structure is driven by a motor.

In an optional implementation manner of the first aspect, the positioning identifier plate includes a hollowed layer and a light source layer, and a gap corresponding to the positioning identifier is disposed on the hollowed layer, so that light emitted by the light source layer is projected from the gap.

In an alternative implementation of the first aspect, the positioning marks are cross-shaped crosses.

In an optional implementation manner of the first aspect, the positioning identifiers include a first positioning identifier, a second positioning identifier, and a third positioning identifier that are arranged one above the other.

In an optional implementation manner of the first aspect, the positioning identifiers include a fourth positioning identifier, a second positioning identifier, and a fifth positioning identifier that are arranged left and right.

In an optional implementation manner of the first aspect, the light source layer includes an LED lamp bead and a synchronization control module for driving the LED lamp bead, and the synchronization control module is in communication connection with a scanning device for display calibration.

In an alternative embodiment of the first aspect, one end of the supporting arm is fixed on the glass fixing device, and a supporting rod is further arranged under the supporting arm to provide supporting force for the suspended end of the supporting arm.

In a second aspect, a display calibration device is provided, including a scanning device, a glass fixing device, and the positioning alignment device of the first aspect.

Compared with the prior art, the flexible telescopic structure is arranged on the positioning identification plate, the telescopic structure is fixed relatively through the supporting arm, and the telescopic structure can drive the positioning identification plate to be positioned at different positions before glass measurement, and the telescopic structure is provided with a first position suitable for left driving display calibration and a second position suitable for right driving display calibration. The method and the device can be compatible with various types of vehicles including left driving and right driving, and are easy to switch and high in flexibility.

Drawings

In order to more clearly illustrate the technical solutions of the present application, the drawings that are used in the description of the technical solutions will be briefly described below. It is obvious that the drawings in the following description are only some examples described in the present application, and that other drawings may be obtained from these drawings without inventive work for a person of ordinary skill in the art.

Fig. 1 is a schematic view of a HUD projection display in some examples of the present application.

Fig. 2 is a schematic view of a HUD projection display in some examples of the present application.

FIG. 3 is a schematic diagram of a calibration apparatus shown in some examples of the present application.

Fig. 4 is a schematic view of a locating sign board in some examples of the present application.

FIG. 5 is a schematic diagram of a calibration device shown in some examples of the present application.

FIG. 6 is a schematic diagram of a calibration apparatus shown in some examples of the present application.

FIG. 7 is a schematic diagram of a calibration device shown in some examples of the present application.

Detailed Description

The present application will be described in detail below with reference to the attached drawings, but the descriptions are only examples described in the present application and are not limiting, and all changes in structure, method or function etc. made by those of ordinary skill in the art based on these examples are included in the protection scope of the present application.

It should be noted that in different examples, the same reference numerals or labels may be used, but these do not represent absolute relationships in terms of structure or function. Also, the references to "first," "second," etc. in the examples are for descriptive convenience only and do not represent absolute distinguishing relationships between structures or functions, nor should they be construed as indicating or implying a relative importance or number of corresponding objects. Unless specifically stated otherwise, reference to "at least one" in the description may refer to one or more than one, and "a plurality" refers to two or more than two.

In addition, in representing the feature, the character "/" may represent a relationship in which the front-rear related objects exist or exist, for example, a head-up display/head-up display may be represented as a head-up display or a head-up display. In the expression operation, the character "/" may indicate that there is a division relationship between the front and rear related objects, for example, the magnification m=l/P may be expressed as L (virtual image size) divided by P (image source size). Also, "and/or" in different examples is merely to describe the association relationship of the front and rear association objects, and such association relationship may include three cases, for example, a concave mirror and/or a convex mirror, and may be expressed as the presence of a concave mirror alone, the presence of a convex mirror alone, and the presence of both concave and convex mirrors.

The HUD mainly uses the optical reflection principle to project the information to be displayed on the transparent surface, and the user can directly watch the corresponding information on the transparent surface, so that a special display screen is not needed, and another convenient implementation manner is provided for information display. The vehicle-mounted display device is applied to vehicle-mounted display, namely, the light projected by the light machine is projected on the front windshield of the vehicle through the light path planning by being provided with the light machine with the function of relevant vehicle information, so that a driver can directly watch the vehicle parameter information displayed on the front windshield during driving instead of looking at the data of the instrument panel at a low head, the convenience of watching the information is greatly improved, meanwhile, the driver does not need to turn the view to a place beyond the front of the vehicle when driving the vehicle to watch the information, and the safety of driving the vehicle by the driver is also improved.

As shown in fig. 1, in some examples, a display device for implementing a HUD function may be embedded on a center console in front of a steering wheel of a vehicle, where the HUD display device may include at least an optical machine 1, a first mirror 2, and a second mirror 3. In some examples, the first mirror 2, the second mirror 3 may be configured as a free-form surface mirror such as a concave mirror, a convex mirror, or the like, as desired. The optical machine 1 projects light rays for displaying corresponding information, and the first reflecting mirror 2 and the second reflecting mirror 3 are used for realizing light path planning, so that a light path can be customized in a smaller display equipment space, and different projection display requirements are met. The light beam projected by the optical machine 1 is finally projected on the windshield 6 of the vehicle through multiple reflections of the first reflecting mirror 2 and the second reflecting mirror 3, a driver 4 in the vehicle can see a virtual image 5 formed on the windshield 6 by the projected light beam of the optical machine 1 against the windshield 6, as shown in fig. 2, and display information (i.e., the virtual image 5) corresponding to the windshield 6 can be parameter information (such as 60 Km/h) of the vehicle, navigation information (such as arrow to the right) and the like. It should be added that different optical machines can be correspondingly provided with a diffuse mirror to adjust the corresponding imaging effect. In some examples, fresnel lenses, waveguide optics, diffractive optics, holographic optics, tapered fibers, etc. may also be included in the display device to enable light path planning and optimization.

As described above, the display information on the windshield is projected on the windshield through the HUD display device, so if the display information has a certain display specification requirement, such as that the display position must be in the lower left corner of the windshield, the HUD display device is correspondingly calibrated before leaving the factory, and whether the detected display device meets the corresponding display specification requirement is determined, and the specific implementation of the display calibration device will be described in detail below.

As shown in fig. 3, in some examples, the display calibration device is a device for specifically detecting HUD projection display conditions on different types of windshields, and for realizing detection convenience, in this example, the display calibration device includes a positioning alignment device 31, a glass fixing device 32 and a scanning device 33, the positioning alignment device 31 includes a positioning identification plate 311, and the position of the positioning identification plate 311 is consistent with the position of windshield display information, and optionally, the display calibration device can also be adaptively adjusted according to detected different types of glass. The positioning mark plate 311 can display a corresponding positioning mark, which can be a cross, a star or the like sign, and is used as a reference for alignment when calibrating display information on the windshield. The glass fixture 32 includes various height-adjustable mounting brackets that simulate the height and tilt angle of different vehicles so that the windshield 321 mounted thereon may be fully compatible with the actual vehicle windshield. The scanning device 33 is accordingly a process for simulating the viewing of information displayed on a windscreen in a cockpit in a vehicle, the scanning device 33 may in particular comprise a camera device or the like for display calibration, which can be aligned with the information displayed on the windscreen and compared with a positioning identification plate in front of the windscreen, in order to determine the projection accuracy of the HUD display device on the windscreen. In the present utility model, the term "front" refers to a direction out of the windshield in the visual field, which is positioned in front of the windshield when the driver is looking at the windshield in the vehicle interior, and the term "rear" is reversed. In this example, since the entire positioning alignment device 31 does not occupy too many positions beside the glass fixture 32, the installation and replacement of the measurement glass can be very facilitated.

As shown in fig. 4, in some examples, the positioning and marking plate 311 is fixed on the base 44 by screws, and optionally, handles for facilitating gripping are further provided on both sides of the base 44, so that the convenience of mounting the entire positioning and marking plate 311 is increased, and the positioning and marking plate 311 can be easily mounted on other connectors through the base 44. The positioning mark plate 311 at least comprises a first layer 41 and a second layer 42, and the first layer 41 and the second layer 42 can be fixed together through screws. The first layer 41 may be marked with a corresponding positioning mark 410, so that in order to improve the positioning clarity, the positioning mark 410 may be a crossed cross symbol, and a scanning device with a certain length from horizontal to vertical can easily find the positioning mark, and the crossing point of a horizontal to vertical can clearly indicate the positioning point. In some examples, the positioning indicia 410 includes first, second, and third positioning indicia arranged one above the other so that different reference heights can be determined based on different viewing heights. In some examples, the positioning markers 410 include a fourth positioning marker, a second positioning marker, and a fifth positioning marker arranged side-to-side such that different reference positions may be determined according to different lateral seating postures. In some examples, the positioning identifier 410 may also include three rows and three columns of positioning identifiers, which may provide more possible reference positions.

In some examples, the positioning mark is recorded on the first layer 41 of the positioning mark plate 311 by printing, carving, etc., but this makes the display effect fixed and unadjustable, and cannot meet the different brightness requirements of the scanning device under different conditions. Therefore, in some examples, the first layer 41 adopts a hollowed-out manner to generate a slit with a specific shape on the first layer 41, the formed corresponding slit is consistent with the shape of the positioning mark, the slit can be matched with the light source generated by the second layer 42, accordingly, the first layer 41 is a hollowed-out layer, the second layer 42 is a light source layer, namely, a luminous LED lamp bead is arranged in the second layer 42, and the like, and the light emitted by the LED lamp bead can be emitted through the slit, so that the positioning mark formed by the slit can emit light just like the self-luminous positioning mark, and further, the display brightness of the positioning mark in the first layer 41 can be perceived to be changed by adjusting the brightness of the LED lamp bead.

In some examples, the positioning marking plate 311 is connected with the base 44 through the corresponding bracket 43, so that the height of the positioning marking plate 311 can be increased, alternatively, the bracket 43 is a rotating structure and can rotate on the base 44 at a certain angle relative to the base 44, so that the elevation angle of the positioning marking plate 311 can be driven to change, and the positioning marking plate is suitable for different vehicle types, such as a car with a smaller inclination angle or a bus with a larger inclination angle, and can be compatible after adjustment.

As shown in fig. 5, in some examples, the positioning alignment device provided at the front of the display calibration apparatus specifically includes a bracket arm 52, and the bracket arm 52 may be mounted on the front edge of the glass fixture, so that the fixing is simple firstly, and the fixing part secondly does not affect the entire glass fixture to mount and dismount the measurement glass. The supporting arm 52 extends forward to form a suspension end, and a supporting rod 53 is provided to provide supporting force for the suspension end in order to improve the fixing strength of the supporting arm 52, specifically, one end of the supporting rod 53 is connected to the suspension end of the supporting arm 52, and the other end is also connected to the front edge of the glass fixing device, optionally, the connection position is located below the position where the supporting arm 52 is connected to the glass fixing device. In some examples, a stiffening beam may also be provided between the bracket arm 52 and the support bar 53.

In some examples, the bracket arm 52 is used to carry the positioning mark plate 311 for calibrating the reference, so that the positioning mark plate 311 forms a certain distance with the measurement glass mounted on the glass fixing device, and the calibration process is to determine a specific alignment relationship by using the positioning mark on the positioning mark plate 311, the display information projected on the measurement glass and the three-point line formed by the scanning device. Alternatively, the length of the bracket 52 (i.e., the distance between the positioning indicator plate 311 to be mounted on the bracket and the measurement glass to be mounted on the glass fixture) may be determined based on the VID (Virtual Image Distance ) of the virtual image projected onto the measurement glass, and in some examples, the length of the bracket may be adjustable, particularly based on adjustment of the projected VID, to ensure that the depth of the virtual image corresponds to the distance between the positioning indicator plate 311 and the measurement glass.

In some examples, a telescopic structure 51 is arranged horizontally and vertically to the supporting arm 52, specifically, the telescopic structure 51 is fixed at the suspension end of the supporting arm 52, so that the positioning identification plate fixed on the telescopic structure forms the distance with the measuring glass. After being connected to the bracket arm 52, the telescopic structure 51 can be extended and retracted back and forth in a direction horizontal to the bracket arm 52, that is, movable along the width direction of the glass. Thus, the free end of the telescoping structure 51 may be aligned with the left half of the windshield or with the right half of the windshield, depending on the perspective of the driver sitting in the cockpit toward the windshield. When the locating tab 311 is secured to the free end of the telescoping structure 51, the locating tab 311 is correspondingly aligned with the left half of the windshield or with the right half of the windshield. The system can further adapt to different types of vehicles driven left and right, because vehicles in different countries or regions have drivers on the left side of the vehicle and on the right side of the vehicle, the viewing angles of the information displayed on the windshield by drivers are different, and accordingly, different calibration reference standards are needed, the positioning identification plate 311 is placed at different positions and is consistent with the actual display specification, and in this example, the system can be realized by simply adjusting the telescopic structure.

As shown in fig. 5, the telescopic structure 51 is in an extended state, the positioning identification plate fixed at the free end of the telescopic structure 51 is in a second position aligned with the right driver, while as shown in fig. 6, the telescopic structure 51 is in a contracted state, the positioning identification plate fixed at the free end of the telescopic structure 51 is in a first position aligned with the left driver, the first position and the second position can respectively meet different calibration requirements, meanwhile, the whole replacement of the display calibration arrangement is not needed, and the flexibility is very high only by simply driving the telescopic structure 51. In some examples, the telescoping structure 51 includes a first telescoping rod and a second telescoping rod parallel to each other, which may allow simultaneous telescoping and opening. Correspondingly, one ends of the first telescopic rod and the second telescopic rod are fixed on the suspension end of the bracket arm 52, and optionally, a motor for driving the first telescopic rod and the second telescopic rod to move is further arranged in the bracket arm 52, and if the corresponding telescopic structure needs to be extended, only the motor is needed to drive the first telescopic rod and the second telescopic rod to be extended and opened simultaneously, and vice versa. And the other end of first telescopic link, second telescopic link then can be connected with the base of location marking board, for example the base includes two guide holes that correspond, and first telescopic link, second telescopic link insert respectively in the guide hole and with the base fixed, when first telescopic link, second telescopic link under the drive of motor, the base also can drive whole location marking board and take place to remove, can satisfy different detection demarcation demands through foretell adjustment.

In some examples, the display calibration device is used for realizing the display calibration of windshields with large inclination angles, such as buses, and the like, without being limited to vehicles with traditional inclination angle windshields. Taking a passenger car as an example, for a glass fixing device in display calibration equipment, a corresponding mounting bracket is required to be arranged to simulate the inclination angle of the passenger car to mount a corresponding windshield, so that the effect of projection on the windshield of the passenger car can be directly detected indoors. Correspondingly, the positioning alignment device should also have a positioning identification plate (refer to fig. 4 specifically) matched with an elevation angle, the angle is adjusted by a rotating structure arranged between the positioning identification plate and the base, for example, a rotating shaft can be arranged on the rotating structure, two rotating arms are respectively arranged on the rotating shaft and are respectively connected with the positioning identification plate and the base, and the positioning identification plate and the base can rotate through the rotating shaft. Correspondingly, the positioning identification plate is driven by the rotating structure to have a first elevation angle suitable for the calibration of a first vehicle type and a second elevation angle suitable for the calibration of a second vehicle type display, and the first elevation angle is different from the second elevation angle, so that the positioning identification plate can be compatible with the display calibration under various conditions. As shown in FIG. 5, the rotating structure is in a first state, the positioning mark plate is vertically erected under the drive of the rotating structure, the positioning mark on the first layer is in a first elevation angle opposite to the measured glass, as shown in FIG. 7, the rotating structure is in a second state, the positioning mark plate is slightly upward lifted under the drive of the rotating structure, and the situation that the measured glass is relatively high can be adapted, and the positioning mark on the first layer is in a second elevation angle in an obliquely upward direction. In some examples, the switching between the first elevation angle and the second elevation angle can be achieved by controlling the rotating structure through the motor, alternatively, the motor can be controlled by a glass fixing device, a scanning device and the like, when the glass fixing device senses that the glass is provided with the measuring glass with different angles, the motor can be synchronously controlled to drive the positioning identification plate to be at a specific elevation angle through the corresponding rotating structure.

As described above, the display calibration device is a measurement glass with a fixed alignment by using a scanning device, and recognizes the display information and display position of the HUD display device on the measurement glass, and the thickness, the inclination angle and the like of the measurement glass can influence the projection effect of HUD display, so that corresponding calibration is required for windshields of different vehicle types. If no reference object exists for calibrating the display position, the projection effect on the windshield is simply judged to be incapable of being accurately calibrated, so that the positioning and aligning device is introduced in the example, the position of the positioning identification plate is adjusted through the positioning and aligning device, and the positioning identification displayed in the positioning identification plate is used as a reference standard, so that the position calibration can be more accurately realized. However, under different calibration conditions, different requirements are also applied to the display brightness of the positioning mark on the positioning mark plate, for example, the display information projected on the windshield is darker, and if the display brightness of the positioning mark is too bright, the analysis and judgment of the scanning device are affected. Therefore, in order to improve the flexibility of calibration and ensure that the display brightness of the positioning mark meets the requirement of self-adaptive adjustment, in this example, the brightness of the LED lamp beads arranged on the light source layer can be controlled, and as the brightness of the LED lamp beads is changed, the light transmitted through the gaps formed on the hollowed layer is weakened, and accordingly, the positioning mark formed by the gaps also appears to be reduced in brightness. In some examples, adjustment of the brightness of the LED beads is achieved by a synchronous control module, which may be disposed on the light source layer, to achieve connection control with the LED beads. Meanwhile, the synchronous control module is also in wired or wireless communication connection with the scanning device, so that the synchronous control module can be directly in state synchronization with the scanning device, for example, when the scanning device determines that the positioning mark is displayed darker and needs to be lightened, the scanning device can actively send an adjustment instruction to the synchronous control module according to the requirement, the LEDs can be quickly adjusted to the appointed brightness according to the adjustment instruction, otherwise, when the scanning device determines that the positioning mark is displayed lighter and needs to be lightened, the scanning device can directly send the adjustment instruction to the synchronous control module.

In some examples, the display calibration device has the positioning alignment device capable of being adaptively adjusted, so that display calibration with better flexibility can be realized, and display calibration of other vehicle types can be switched to by a stand-horse without large part replacement, thereby reducing a threshold for actual detection work and improving efficiency.

To sum up, this application is provided with nimble extending structure for location marking plate, and extending structure passes through the trailing arm and realizes relatively fixed, and extending structure can drive location marking plate and be in the first position that the measurement glass was preceding has the adaptation left side and drive the display calibration and the second position that the adaptation right side was driven the display calibration. The method and the device can be compatible with various types of vehicles including left driving and right driving, and are easy to switch and high in flexibility.

It should be understood that while this specification includes examples, any of these examples does not include only a single embodiment, and that this depiction of the specification is for clarity only. Those skilled in the art will recognize that the embodiments of the present utility model may be combined as appropriate with one another to form other embodiments as would be apparent to one of ordinary skill in the art.

The above list of detailed descriptions is only specific to possible embodiments of the present application, they are not intended to limit the scope of the present application, and all equivalent embodiments or modifications that do not depart from the teachings of the present application are intended to be included in the scope of the present application.

Claims

1. A positioning and alignment device, comprising:

2. The positioning and aligning device according to claim 1, wherein the telescopic structure comprises a first telescopic rod and a second telescopic rod which are parallel to each other, one ends of the first telescopic rod and the second telescopic rod are fixed on the suspension end of the supporting arm, and the other ends of the first telescopic rod and the second telescopic rod are jointly fixed on the base of the positioning identification plate so as to drive the movement of the positioning identification plate.

3. The alignment device of claim 1 or 2, wherein the telescoping structure is driven by a motor.

4. The alignment device of claim 1, wherein the alignment marker plate is coupled to the base by a rotating structure, the alignment marker plate having a first elevation angle adapted to a first vehicle display calibration and a second elevation angle adapted to a second vehicle display calibration under the drive of the movement of the rotating structure.

5. The alignment fixture of claim 4, wherein the rotating structure is driven by a motor.

6. The positioning and aligning device according to claim 1, wherein the positioning mark plate comprises a hollowed-out layer and a light source layer, and a slit corresponding to the positioning mark is arranged on the hollowed-out layer, so that light emitted by the light source layer is projected out of the slit.

7. The alignment device of claim 6, wherein the alignment marks are cross-shaped crosses.

8. The alignment device of claim 6, wherein the light source layer comprises an LED light bead and a synchronization control module driving the LED light bead, the synchronization control module being communicatively coupled to a scanning device for display calibration.

9. The alignment fixture of claim 1, wherein one end of the bracket is secured to a glass fixture, and a support bar is provided under the bracket to provide support for a cantilevered end of the bracket.

10. A display calibration device comprising a scanning device, a glass fixing device and a positioning and alignment device according to any one of claims 1 to 9.