CN218973799U - Virtual step test system of virtual image display device - Google Patents

Abstract

The disclosure relates to the technical field of electromechanical detection, and provides a virtual-step testing system of virtual image display equipment. The virtual step test system of the virtual image display equipment is provided with a test module and a central processing module; the test module comprises a test bench, a camera and a reflecting piece, wherein one end of the test bench is provided with the camera, the other end of the test bench is provided with the reflecting piece, and an installation component for installing the virtual image display equipment is arranged below the reflecting piece, so that image light rays emitted by the virtual image display equipment are reflected by the reflecting piece to form a virtual image, and the camera is aligned with the virtual image formed by the reflection of the reflecting piece; the virtual image display device and the camera are connected with the central processing module, and the central processing module is at least used for controlling the action of the amplifying element of the virtual image display device and analyzing the change of the virtual image position shot by the camera, and finally, the virtual walking condition of the virtual image display device is obtained by analyzing the delay relation between the action process of the amplifying element and the change of the virtual image position.

Description

Virtual step test system of virtual image display device

Technical Field

The disclosure relates to the technical field of electromechanical detection, in particular to a virtual-step testing system of virtual image display equipment.

Background

In the virtual image display apparatus, a motor is generally used in combination with a screw or a gear to drive a magnifying element of the virtual image display apparatus to rotate, for example, the magnifying element is a curved mirror, so as to achieve the purpose of changing the position of a projected image of the virtual image display apparatus. However, because the screw rod or the gear matching structure is provided with a gap, when the motor changes the direction of driving the screw rod or the gear, the gap of the screw rod or the gear matching structure can cause the interruption of rotation of the curved mirror to cause virtual steps, thereby affecting the display quality of the virtual image display device.

Disclosure of Invention

To solve or at least partially solve the above technical problems, the present disclosure provides a virtual-step testing system of a virtual image display device.

The disclosure provides a virtual step test system of virtual image display equipment, which comprises a test module and a central processing module;

the test module comprises a test bench, a camera and a reflecting piece, wherein one end of the test bench is provided with the camera, the other end of the test bench is provided with the reflecting piece, the test bench is provided with an installation component, a virtual image display device is installed in the installation component, the virtual image display device is positioned below the reflecting piece, image light rays emitted by the virtual image display device are reflected by the reflecting piece to form a virtual image, and the camera and the reflecting piece are arranged at intervals and are aligned with the virtual image formed by reflection of the reflecting piece;

the virtual image display device and the camera are both connected with the central processing module, and the central processing module is at least used for controlling the action of an amplifying element of the virtual image display device and analyzing the virtual image shot by the camera.

Optionally, the test bench includes the rack bottom plate, makes a video recording support and reflector support, the one end of rack bottom plate is equipped with the support of making a video recording, and the other end is equipped with the reflector support, the support of making a video recording is used for with the camera is fixed the preset position department in the eye box region of virtual image display device.

Optionally, the reflector support includes reflector support base and bracing piece, reflector support base with the rack bottom plate is kept away from the one end of support of making a video recording is connected, the one end of bracing piece with reflector support base is connected, and the other end is equipped with the reflector, be equipped with on the reflector support base the installation component.

Optionally, a reflector fixture is further disposed between the reflector and the support rod, and is used for installing the reflector on the support rod.

Optionally, the reflector fixture includes a mounting base and a clamping member, the mounting base is obliquely disposed on the test bench, and the clamping member is disposed on the mounting base and is used for connecting the reflector with the mounting base.

Optionally, the installation component includes carrier, setting element and mounting, the carrier set up in on the reflector holder base, the setting element with the mounting all set up in on the carrier, the setting element be suitable for the location virtual image display device with the position between the carrier, the mounting be used for with virtual image display device with carrier fixed connection.

Optionally, the locating piece includes two piece at least limiting plates, two piece at least limiting plates are parallel to each other and are set up on the carrier, when virtual image display device is placed on the carrier, at least part virtual image display device is located two piece at least limiting plates between.

Optionally, the number of the positioning members is multiple, the multiple positioning members are oppositely arranged on the bearing member, and when the virtual image display device is placed on the bearing member, the virtual image display device is connected with the multiple positioning members.

Optionally, the mounting includes rotatory jacking equipment and pressure head, rotatory jacking equipment set up in on the carrier, rotatory jacking equipment keep away from the one end of carrier is equipped with the pressure head, virtual image display device place in when on the carrier, rotatory jacking equipment drives the pressure head rotates to virtual image display device's top, and drives the pressure head is towards being close to virtual image display device's direction removes, so that the pressure head with virtual image display device butt.

Optionally, the number of the fixing pieces is multiple, and multiple fixing pieces are oppositely arranged on the bearing piece.

Optionally, a quick-change structure is further arranged between the installation component and the test bench, and the installation component is connected with the test bench through the quick-change structure.

The virtual step testing system of the virtual image display equipment is provided with a testing module and a central processing module; the test module comprises a test bench, a camera and a reflecting piece, wherein one end of the test bench is provided with the camera, the other end of the test bench is provided with the reflecting piece, and an installation component for installing the virtual image display equipment is arranged below the reflecting piece, so that image light rays emitted by the virtual image display equipment are reflected by the reflecting piece to form a virtual image, and the camera is aligned with the virtual image formed by the reflection of the reflecting piece; the virtual image display device and the camera are both connected with the central processing module, and the central processing module is at least used for controlling the action of an amplifying element of the virtual image display device and analyzing the change of the virtual image position shot by the camera, and finally, the virtual steps of the virtual image display device are obtained by analyzing the delay between the starting of the action of the amplifying element and the change of the virtual image position.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure.

In order to more clearly illustrate the embodiments of the present disclosure or the solutions in the prior art, the drawings that are required for the description of the embodiments or the prior art will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.

FIG. 1 is a schematic diagram of a test module according to an embodiment of the disclosure;

fig. 2 is a schematic structural view of a mounting assembly according to an embodiment of the present disclosure.

1, a test bench; 11. a gantry base plate; 12. a reflector holder; 13. a camera support; 14. a reflector holder; 141. a mounting base; 142. a clamping member; 2. a reflecting member; 3. a virtual image display device; 4. a camera; 5. a mounting assembly; 51. a carrier; 52. a positioning piece; 53. a fixing member; 54. and (5) a quick-change structure.

Detailed Description

In order that the above objects, features and advantages of the present disclosure may be more clearly understood, a further description of aspects of the present disclosure will be provided below. It should be noted that, without conflict, the embodiments of the present disclosure and features in the embodiments may be combined with each other.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, but the present disclosure may be practiced otherwise than as described herein; it will be apparent that the embodiments in the specification are only some, but not all, embodiments of the disclosure.

The inventor finds that when the amplifying element is driven to act reversely, the interruption of rotation of the amplifying element can cause the occurrence of virtual steps, so that the virtual steps of the virtual image display device need to be tested to improve the user experience of the virtual image display device when in use.

Referring to fig. 1 and 2, an embodiment of the present disclosure provides a virtual step test system of a virtual image display device, including a test module and a central processing module; the test module comprises a test bench 1, a camera 4 and a reflecting piece 2, wherein one end of the test bench 1 is provided with the camera 4, the other end of the test bench is provided with the reflecting piece 2, the test bench 1 is provided with a mounting component 5, a virtual image display device 3 is mounted in the mounting component 5, the virtual image display device 3 is positioned below the reflecting piece 2, image light rays emitted by the virtual image display device 3 are reflected by the reflecting piece 2 to form a virtual image, the camera 4 and the reflecting piece 2 are arranged at intervals, and the virtual image formed by reflection of the reflecting piece 2 is aligned; the virtual image display device 3 and the camera 4 are both connected with a central processing module, and the central processing module is at least used for controlling the actions of the amplifying element of the virtual image display device 3 and analyzing the virtual image shot by the camera 4.

Specifically, the virtual image Display device 3 may be selected as a HUD device, which is called a Head-Up Display in english, and is also called a Head-Up Display system, for example, a multifunctional instrument panel with a blind operation centered on a vehicle driver. The HUD device is used for projecting important driving information such as speed per hour and navigation onto windshield glass in front of a driver or a secondary driving, so that the driver can see the important driving information such as speed per hour and navigation without lowering the head and turning the head as much as possible. For example, the HUD device includes a housing, an image source, a curved mirror, and a motor, the curved mirror is mounted in the housing as a reflective magnification element, the image source is disposed in the housing, and the motor is connected to the curved mirror so that the curved mirror can rotate relative to the housing. The image emitted by the image source is reflected and amplified by the curved mirror and then projected to the front windshield glass, and the front windshield glass reflects the image light to the eye box area. It will be appreciated that the region in which the observer needs to view the image, i.e. the eyebox region (eyebox), is preset according to the actual requirements, and the eyebox region refers to the region in which the eyes of the observer can see the image displayed by the display device, and may be a planar region or a stereoscopic region, for example.

The HUD equipment is used for installing near the control cabinet of car, curved mirror orientation car's front windshield glass, can pass through curved mirror with the picture that the image source was projected after the virtual image display device 3 starts and throw preceding windshield glass after amplifying, form the virtual image after preceding windshield glass reflects the human eye, make driver or vice driver's passenger can see the virtual image information that HUD equipment projected on car windshield glass in real time, the angle of projection light can be adjusted in motor drive curved mirror rotation, because the motor has delay and produces the virtual step when changing curved mirror's rotation state, so the virtual step test system of virtual image display device that this embodiment of the disclosure provided detects the virtual step of HUD equipment, in order to adjust the parameter assurance HUD equipment of HUD equipment can receive user's accurate control in practical application.

The test bench 1 can be selected to be provided with two vertical plates at two ends of a rectangular panel respectively, the two vertical plates are provided with the camera 4 and the reflecting piece 2 respectively, the test bench 1 can be selected to be an electric control cabinet, two steel frames are oppositely arranged on an internal object placing plane of the electric control cabinet and are perpendicular to the object placing plane, and the two steel frames are provided with the camera 4 and the reflecting piece 2 respectively.

The reflecting piece 2 can be a rectangular panel, the reflecting piece 2 is arranged for simulating the windshield glass of the automobile, so that the reflecting piece 2 can be selected as a part of the windshield glass of the automobile, the reflecting piece 2 can be a transparent panel made of resin or other materials, the radian of the reflecting piece 2 is consistent with that of the windshield glass of the automobile, the reflecting piece 2 is obliquely arranged on the test bench 1, the reflecting piece 2 and the ground can be specifically selected to form an included angle of 45 degrees, the reflecting piece 2 and the ground can be selected to form an included angle of 60 degrees, and the value of the included angle between the reflecting piece 2 and the ground can be determined according to the included angles of the windshield glass of different automobile types and the ground.

The above-mentioned installation component 5 can select to connect on test bench 1 through the bolt, of course also can select installation component 5 to be connected with test bench 1 through locating pin and knob, and installation component 5 can select to be located the reflecting member 2 directly under to make virtual image display device 3 be located the state of simulation virtual image display device 3 when the actual use of below of reflecting member 2, the curved mirror of virtual image display device 3 sets up with reflecting member 2 relatively.

The above-mentioned central processing module may be selected as a computer, or may be selected as a vehicle-mounted chip, and the central processing module may send a signal to a motor connected to an amplifying element of the virtual image display device 3, so that the motor starts to change the position of the virtual image projected by the virtual image display device 3 on the reflecting member 2, and meanwhile, the change information of the position of the virtual image photographed by the camera 4 is transmitted to the central processing module, and then the virtual step of the virtual image display device 3 is obtained by analyzing the software in combination with the start time of the motor and the change information of the position of the virtual image.

When the device is specifically used, the central processing module sends a signal to the virtual image display device 3 so as to control the amplifying element of the virtual image display device 3 to rotate, so that the position of the virtual image formed by reflection of the reflecting piece 2 is changed, the camera 4 shoots the position change information of the virtual image, the position change information of the virtual image is transmitted to the central processing module, and the time for sending the signal to the virtual image display device 3 and the position change information of the virtual image are analyzed and compared by combining software so as to obtain the virtual steps of the virtual image display device 3.

That is, the virtual step test principle is that virtual images at different positions are generated when the curved mirror of the HUD is rotated, and virtual steps of a motor for driving the curved mirror to rotate are obtained by analyzing the virtual images at different positions, so that after the vehicle is installed in the future, the virtual steps existing in the motor can be compensated before the HUD is used. Thus, when a user issues a command to control the virtual image to be adjusted to the target position, the HUD can accurately perform adjustment control.

The test module and the central processing module are arranged; the test module comprises a test bench 1, a camera 4 and a reflecting piece 2, wherein one end of the test bench 1 is provided with the camera 4, the other end of the test bench is provided with the reflecting piece 2, the test bench 1 is provided with a mounting component 5, a virtual image display device 3 is mounted in the mounting component 5, the virtual image display device 3 is positioned below the reflecting piece 2, image light rays emitted by the virtual image display device 3 are reflected by the reflecting piece 2 to form a virtual image, the camera 4 and the reflecting piece 2 are arranged at intervals, and the virtual image formed by reflection of the reflecting piece 2 is aligned; the virtual image display device 3 and the camera 4 are both connected with a central processing module, and the central processing module is at least used for controlling the action of an amplifying element of the virtual image display device 3 and analyzing the virtual image shot by the camera 4, finally, the central processing module controls the action of the amplifying element to change the virtual image position on the reflecting piece 2, and the virtual steps of the virtual image display device 3 are obtained by analyzing the starting time of the action of the amplifying element and the delay between the change of the virtual image position.

Referring to fig. 1 and 2, in some embodiments, the test bench 1 includes a bench base 11, a camera support 13, and a reflector support 12, one end of the bench base 11 is provided with the camera support 13, and the other end is provided with the reflector support 12, and the camera support 13 is used to fix the camera 4 at a preset position of an eye box area of the virtual image display device, for example, the preset position is a center of the eye box area. Specifically, the rack bottom plate 11 may be a rectangular plate, the camera bracket 13 may be a rectangular bracket, or may be a cylindrical bracket, and the reflector bracket 12 may be a rectangular bracket, or may be a cylindrical bracket; the gantry base plate 11, the imaging support 13, and the reflector support 12 may be selected as an integrated structure, and of course, the gantry base plate 11, the imaging support 13, and the reflector support 12 may be connected by bolts.

The above-mentioned light that the virtual image display device 3 throws to reflector 2 forms the virtual image after the reflection of reflector 2, and when the user faced reflector 2, the user only need eyes to be located certain space in order to see the virtual image that the virtual image display device 3 throws formed, this space scope is the eye box region of virtual image display device 3, can select to use the bolt fastening to make a video recording support 13 with camera 4, and design the height of camera support 13 makes camera 4 be located the center in eye box region, of course also can select to be equipped with the buckle on the camera support 13, fix camera 4 on camera support 13 through the buckle, and make camera 4 be located the one side edge that the eye box region is close to the ground.

Through setting up test rack 1 and including rack bottom plate 11, support 13 and reflector support 12 make a video recording, be equipped with the support 13 of making a video recording in the one end of rack bottom plate 11, the other end is equipped with reflector support 12 to the support 13 of making a video recording is used for fixing the camera 4 in the preset position department of the eye box region of virtual image display device 3, finally makes the virtual image position change information on the shooting reflector 2 that camera 4 can be clear, has promoted the accuracy of the virtual image position change information that camera 4 obtained.

Referring to fig. 1 and 2, in some embodiments, the reflector support 12 includes a reflector support base and a support rod, where the reflector support base is connected to an end of the base plate of the stand away from the camera support 13, one end of the support rod is connected to the reflector support base, the other end of the support rod is provided with the reflector 2, the reflector support base is provided with a mounting assembly 5, and the reflector support base may be selected to have a rectangular structure, or may be selected to have a cylindrical structure, and the support rod is disposed on the reflector support base, or may be selected to have an integral structure with the reflector support base, or may be selected to connect the support rod with the reflector support base by a bolt, where the volume of the reflector support base is larger than that of the support rod.

Through setting up reflector support 12 and including reflector support base and bracing piece, keep away from the one end of making a video recording support 13 with reflector support base and rack bottom plate and be connected, be connected the one end and the reflector support base of bracing piece, the other end is equipped with reflector 2, be equipped with installation component 5 on the reflector support base, finally make reflector support base can reduce the focus of reflector support 12, promote the stability of reflector support 12, the vibration when avoiding the amplifying element of virtual image display device 3 to begin to rotate makes reflector support 12 vibrate together, and lead to the accuracy of the virtual image position change information that reduces camera 4 and shoot.

Referring to fig. 1 and 2, in some embodiments, a reflector fixture 14 is further disposed between the reflector 2 and the support rod, and is used for mounting the reflector 2 on the support rod, where the reflector fixture 14 may be a stainless steel clip connected to the support rod, or a screw may be optionally disposed on the support rod, a through hole is disposed on the reflector 2, the screw passes through the through hole, and a nut is used to mount the reflector 2 on the screw, so that the reflector 2 is located between the support rod and the nut, and the reflector 2 is mounted on the support rod by abutting with the reflector 2 after the nut is screwed.

Through still being equipped with reflector holder 14 between reflector 2 and bracing piece for install reflector 2 on the bracing piece, make reflector 2 can be through reflector holder 14 convenient and fast with bracing piece connection and break away from, promoted the convenience of installation and change reflector 2 operation on the reflector support 12.

Referring to fig. 1 and 2, in some embodiments, the reflector holder 14 includes a mounting base 141 and a clamping member 142, the mounting base 141 being disposed on the test bench 1, the clamping member 142 being disposed on the mounting base 141 for connecting the reflector 2 with the mounting base 141.

Specifically, the mounting base 141 may be a rectangular panel, or may be an oval panel, or may be a bolt to connect the clamping member 142 to the mounting base 141, or may be a rivet to connect the clamping member 142 to the mounting base 141; the installation base 141 can be selected to form an included angle of 45 degrees with the ground, or the installation base 141 can be selected to form an included angle of 60 degrees with the ground, the clamping piece 142 can be selected to be a stainless steel clamp, or two magnets can be selected to be installed on the installation base 141, one magnet is installed on the installation base 141, the reflecting piece 2 is placed on the installation base 141, the other magnet is placed on the reflecting piece 2, and the reflecting piece 2 is fixed on the installation base 141 through the magnetic force of the magnets.

The reflector clamp 14 comprises the mounting base 141 and the clamping piece 142, the mounting base 141 is obliquely arranged on the test bench 1, the clamping piece 142 is arranged on the mounting base 141 and used for connecting the reflector 2 with the mounting base 141, and finally the reflector 2 is stably arranged on the mounting base 141 through the clamping piece 142, so that the stability of the reflector 2 when being arranged on the reflector bracket 12 is improved.

Referring to fig. 1 and 2, in some embodiments, the mounting assembly 5 includes a carrier 51, a positioning member 52 and a fixing member 53, the carrier 51 is disposed on the reflector bracket base, the positioning member 52 and the fixing member 53 are both disposed on the carrier 51, the positioning member 52 is adapted to position between the virtual image display device 3 and the carrier 51, and the fixing member 53 is used to fixedly connect the virtual image display device 3 and the carrier 51.

Specifically, the carrier 51 may be a rectangular platform, or may be a cylindrical platform, on which rectangular protrusions may be formed, where the ends of the rectangular protrusions form an included angle of 30 ° with the parallel direction, and the virtual image display device 3 abuts against the ends of the rectangular protrusions; the positioning member 52 may be selected to be a plurality of cylindrical protrusions, with the virtual image display device 3 placed between the two protrusions to achieve the positioning function, and of course, may be selected to be a groove provided on the carrier member 51, with the edge of the virtual image display device 3 inserted into the groove to achieve the positioning of the virtual image display device 3.

The fixing member 53 may be selected to be a bolt provided on the carrier member 51, and a screw hole is provided on the virtual image display device 3, so that after the virtual image display device 3 is placed on the carrier member 51, the virtual image display device 3 is connected to the carrier member 51 by passing the bolt through the screw hole and providing a nut on the bolt; it is of course also possible to select the fixing member 53 as an air cylinder mounted on the carrier member 51, to provide a pressing head at the head of the air cylinder, to place the virtual image display apparatus 3 on the carrier member 51, and to lower the head of the air cylinder so that the pressing head presses on the virtual image display apparatus 3, thereby fixedly connecting the virtual image display apparatus 3 with the carrier member 51.

Through setting up installation component 5 and including carrier 51, setting element 52 and mounting 53, set up carrier 51 on reflector support base to setting element 52 and mounting 53 all set up on carrier 51, and setting element 52 is suitable for the position between location virtual image display device 3 and the carrier 51, and mounting 53 is used for with virtual image display device 3 and carrier 51 fixed connection, finally makes virtual image display device 3 can be quick find accurate position on carrier 51 through setting element 52, and mounting 53 promotes the stability of being connected between virtual image display device 3 and the carrier 51, has promoted the convenience of the operation that virtual image display device 3 installed in installation component 5.

Referring to fig. 1 and 2, in some embodiments, the positioning member 52 includes at least two limiting plates, the at least two limiting plates are disposed on the carrier 51 in parallel with each other, when the virtual image display device 3 is placed on the carrier 51, at least part of the virtual image display device 3 is located between the at least two limiting plates, specifically, the limiting plates may be rectangular plates, or alternatively, the limiting plates may be triangular plates, the limiting plates may be vertically disposed on the carrier 51, and the edge of the virtual image display device 3 has rectangular protrusions for positioning when installed in an automobile, so that the rectangular protrusions at the edge of the virtual image display device 3 are inserted between the two limiting plates, thereby implementing the positioning function of the limiting plates; the distance between the two limiting plates may be selected to be equal to the width dimension of the rectangular protrusion of the edge of the virtual image display device 3, or of course, the distance between the two limiting plates may be selected to be larger than the width dimension of the rectangular protrusion of the edge of the virtual image display device 3.

The positioning piece 52 comprises at least two limiting plates, the at least two limiting plates are arranged on the bearing piece 51 in parallel, when the virtual image display device 3 is placed on the bearing piece 51, at least part of the virtual image display device 3 is located between the at least two limiting plates, finally, rectangular protrusions at the edge of the virtual image display device 3 can be inserted between the two limiting plates, and the stability of connection between the virtual image display device 3 and the positioning piece 52 is improved.

Referring to fig. 1 and 2, in some embodiments, the number of the positioning members 52 is plural, the plural positioning members 52 are disposed opposite to each other on the carrier 51, when the virtual image display device 3 is placed on the carrier 51, the virtual image display device 3 is connected to the plural positioning members 52, specifically, the number of the positioning members 52 may be selected to be two, or of course, the number of the positioning members 52 may be selected to be four, or other number of positioning members may be selectively disposed on the carrier 51, so long as the effect that the virtual image display device 3 can be connected to the plural positioning members 52 when the virtual image display device 3 is placed on the carrier 51 is achieved.

By providing a plurality of positioning pieces 52 and arranging the plurality of positioning pieces 52 on the carrier 51 in opposition, when the virtual image display device 3 is placed on the carrier 51, the virtual image display device 3 is connected with the plurality of positioning pieces 52, and the positional stability when the virtual image display device 3 is placed on the carrier 51 is improved.

Referring to fig. 1 and 2, in some embodiments, the fixture 53 includes a rotational lifting device and a ram; the rotating lifting device is arranged on the bearing piece 51, a pressure head is arranged at one end, far away from the bearing piece 51, of the rotating lifting device, when the virtual image display device 3 is placed on the bearing piece 51, the rotating lifting device drives the pressure head to rotate to the upper side of the virtual image display device 3, and the pressure head is driven to move towards the direction close to the virtual image display device 3, so that the pressure head is abutted with the virtual image display device 3.

Specifically, the rotary lifting device can be selected as an air cylinder or a servo motor; the rotatable lifting device may be selectively provided on the carrier 51 using bolts, but it is of course also possible to selectively connect the rotatable lifting device with the carrier 51 using rivets; the pressure head can be selected to be a rectangular panel, or can be selected to be an oval panel, the rotating lifting device can be selected to be arranged at the edge of the bearing piece 51, when the virtual image display device 3 is not placed on the bearing piece 51, the pressure head rotates towards the direction away from the center of the bearing piece 51, a space for placing the virtual image display device 3 on the bearing piece 51 is provided for the virtual image display device 3, after the virtual image display device 3 is placed on the bearing piece 51, the rotating lifting device enables the pressure head to rotate, the pressure head rotates to the upper side of the virtual image display device 3, and the rotating lifting device drives the pressure head to move downwards to enable the pressure head to be abutted with the virtual image display device 3, so that the virtual image display device 3 is stably installed on the bearing piece 51.

Through setting up mounting 53 and including rotatory lifting device and pressure head, set up rotatory lifting device on carrier 51, the one end that carrier 51 was kept away from to rotatory lifting device is equipped with the pressure head, when virtual image display device 3 was placed on carrier 51, rotatory lifting device drove the pressure head and rotated to the top of virtual image display device 3 to drive the pressure head and remove towards the direction that is close to virtual image display device 3, so that pressure head and virtual image display device 3 butt, finally make rotatory lifting device cooperation pressure head with virtual image display device 3 with carrier 51 stable connection, promoted the stability that virtual image display device 3 and installation component 5 are connected.

Referring to fig. 1 and 2, in some embodiments, the number of fixing members 53 is plural, and plural fixing members 53 are disposed opposite to each other on the carrier member 51, specifically, two fixing members 53 may be disposed on the carrier member 51, or four fixing members 53 may be disposed on the carrier member 51, or other numbers of fixing members 53 may be disposed on the carrier member 51.

By providing the number of the fixing pieces 53 in plural, and the plurality of fixing pieces 53 being disposed opposite to each other on the carrier 51, the plurality of fixing pieces 53 are caused to stably mount the virtual image display device 3 on the carrier 51.

Referring to fig. 1 and 2, in some embodiments, a quick-change structure 54 is further disposed between the mounting assembly 5 and the test bench 1, the mounting assembly 5 is connected with the test bench 1 through the quick-change structure 54, specifically, the quick-change structure 54 may optionally include a positioning pin and a knob, a through hole is disposed on the carrier 51, a corresponding positioning hole is disposed on the test bench 1, the positioning pin is inserted into the positioning hole after passing through the through hole, so that the mounting assembly 5 is connected with the test bench 1, a knob may optionally be disposed at an end of the positioning pin far from the test bench 1, after the positioning pin is inserted into the positioning hole, the knob is mounted on the positioning pin, and the knob may optionally abut against a surface of the carrier 51 far from the test bench 1, thereby fixedly connecting the mounting assembly 5 to the test bench 1.

Through still being equipped with quick change structure 54 between installation component 5 and test bench 1, installation component 5 is connected with test bench 1 through quick change structure 54, makes installation component 5 can be convenient with test bench 1 be connected and dismantle through quick change structure 54.

In specific use, the virtual image display device 3 is placed on the carrier 51, the bulge at the edge of the virtual image display device 3 is inserted into the positioning piece 52, the virtual image display device 3 is connected with the carrier 51 by using the fixing piece 53, the lens of the virtual image display device 3 faces the reflecting piece 2, the virtual image display device 3 is used for projecting a virtual image to the reflecting piece 2, the central processing module sends a signal to the virtual image display device 3 so as to control the amplifying element of the virtual image display device 3 to rotate, the position of the virtual image projected on the reflecting piece 2 is changed, the camera 4 shoots virtual image position change information, the virtual image position change information is transmitted to the central processing module, and the time for sending the signal to the virtual image display device 3 and the virtual image position change information are analyzed and compared by software so as to obtain the virtual steps of the virtual image display device 3.

It should be noted that in this document, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The foregoing is merely a specific embodiment of the disclosure to enable one skilled in the art to understand or practice the disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown and described herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (11)

1. The virtual step testing system of the virtual image display equipment is characterized by comprising a testing module and a central processing module;

the test module comprises a test bench (1), a camera (4) and a reflecting piece (2), wherein one end of the test bench (1) is provided with the camera (4), the other end of the test bench is provided with the reflecting piece (2), the test bench (1) is provided with a mounting component (5), a virtual image display device (3) is mounted in the mounting component (5), the virtual image display device (3) is positioned below the reflecting piece (2), image light rays emitted by the virtual image display device (3) are reflected by the reflecting piece (2) to form a virtual image, and the camera (4) and the reflecting piece (2) are arranged at intervals and are aligned with the virtual image formed by reflection of the reflecting piece (2);

the virtual image display device (3) and the camera (4) are both connected with the central processing module, and the central processing module is at least used for controlling the action of an amplifying element of the virtual image display device (3) and analyzing the virtual image shot by the camera (4).

2. A virtual-step test system of a virtual image display device according to claim 1, characterized in that the test bench (1) comprises a bench bottom plate (11), a camera support (13) and a reflector support (12), one end of the bench bottom plate (11) is provided with the camera support (13), the other end is provided with the reflector support (12), and the camera support (13) is used for fixing the camera (4) at a preset position of an eye box area of the virtual image display device (3).

3. A virtual image display device virtual step test system according to claim 2, wherein the reflector support (12) comprises a reflector support base and a support rod, the reflector support base is connected with one end of the gantry base away from the camera support (13), one end of the support rod is connected with the reflector support base, the other end is provided with the reflector (2), and the reflector support base is provided with the mounting assembly (5).

4. A virtual image display device virtual step test system as claimed in claim 3, characterized in that a reflector holder (14) is further arranged between the reflector (2) and the support bar for mounting the reflector (2) on the support bar.

5. A virtual image display device virtual step test system as claimed in claim 4, wherein the reflector fixture (14) comprises a mounting base (141) and a clamping member (142), the mounting base (141) being obliquely arranged on the test bench (1), the clamping member (142) being arranged on the mounting base (141) for connecting the reflector (2) with the mounting base (141).

6. A virtual image display device virtual step test system as claimed in claim 3, characterized in that the mounting assembly (5) comprises a carrier (51), a positioning member (52) and a fixing member (53), the carrier (51) being arranged on the reflector holder base, the positioning member (52) and the fixing member (53) being both arranged on the carrier (51), the positioning member (52) being adapted to position the virtual image display device (3) in a position between the carrier (51), the fixing member (53) being adapted to fixedly connect the virtual image display device (3) with the carrier (51).

7. A virtual image display device virtual step test system according to claim 6, characterized in that the positioning member (52) comprises at least two limiting plates, at least two limiting plates being arranged parallel to each other on the carrier (51), at least part of the virtual image display device (3) being located between at least two limiting plates when the virtual image display device (3) is placed on the carrier (51).

8. A virtual-step testing system of a virtual-image display device according to claim 6, characterized in that the number of the positioning pieces (52) is plural, a plurality of the positioning pieces (52) are disposed opposite to each other on the carrier (51), and the virtual-image display device (3) is connected to a plurality of the positioning pieces (52) when the virtual-image display device (3) is placed on the carrier (51).

9. A virtual image display device virtual step test system according to claim 6, wherein the fixing member (53) comprises a rotary lifting device and a pressing head, the rotary lifting device is arranged on the bearing member (51), the pressing head is arranged at one end of the rotary lifting device far away from the bearing member (51), when the virtual image display device (3) is placed on the bearing member (51), the rotary lifting device drives the pressing head to rotate to the upper side of the virtual image display device (3), and drives the pressing head to move towards the direction close to the virtual image display device (3), so that the pressing head is abutted with the virtual image display device (3).

10. A virtual image display device virtual step test system according to claim 6, wherein the number of the fixing members (53) is plural, and a plurality of the fixing members (53) are oppositely disposed on the carrier member (51).

11. A virtual image display device virtual step test system as claimed in claim 6, characterized in that a quick change structure (54) is further provided between the mounting assembly (5) and the test bench (1), the mounting assembly (5) being connected to the test bench (1) by the quick change structure (54).

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