Verification bench device for in-vehicle ceiling screens

Abstract

This invention provides a calibration bench device for in-vehicle ceiling-mounted displays. The calibration bench device for in-vehicle ceiling-mounted displays includes: a frame assembly, which is formed by a bottom frame component, a side frame component, and a top frame component. The side frame components are located between the bottom and top frame components, which are arranged in parallel. A seat is provided within the bottom frame component. The top frame component consists of a first bracket, a second bracket, a third bracket, and a fourth bracket connected end-to-end. The first and third brackets are arranged in parallel, as are the second and fourth brackets. Guide rails are provided on both the second and fourth brackets to allow free sliding adjustment of the simulated screen in the X-axis. At least one of the second and fourth brackets has a first scale at its bottom, which indicates the position coordinates of the simulated screen in the X-axis. This application solves the problems of high cost and poor reusability in ceiling-mounted display design verification.

Description

Technical Field

[0001] This invention relates to the field of automotive ergonomics verification technology, and more specifically, to a verification bench device for in-vehicle ceiling-mounted screens. Background Technology

[0002] In existing technologies, the calibration bench for in-vehicle ceiling-mounted screens requires irreversible structural modifications to the roof of mass-produced vehicles, leading to a significant increase in testing costs; the testing schedule is constrained by the vehicle body supply from OEMs, resulting in extended verification cycles; and the modified structure cannot be adapted to other vehicle models, resulting in resource waste.

[0003] There is currently no effective solution to the aforementioned technical problems. Summary of the Invention

[0004] The main objective of this invention is to provide a verification bench device for in-vehicle ceiling-mounted screens, so as to solve the problems of high cost, low accuracy and poor reusability in the design verification of ceiling-mounted screens in the prior art.

[0005] To achieve the above objectives, according to one aspect of the present invention, a calibration stand device for an in-vehicle ceiling-mounted screen is provided, comprising: a frame assembly, the frame assembly being formed by a frame bottom component, a frame side component, and a frame top component, the frame side component being located between the frame bottom component and the frame top component, the frame bottom component and the frame top component being arranged in parallel, and a seat being provided inside the frame bottom component; the frame top component being formed by a first bracket, a second bracket, a third bracket, and a fourth bracket being connected end to end, wherein the first bracket and the third bracket are arranged in parallel, the second bracket and the fourth bracket are arranged in parallel, and both the second bracket and the fourth bracket are provided with guide rails for realizing free sliding adjustment of the simulated screen in the X direction; wherein at least one of the second bracket and the fourth bracket is provided with a first scale at its bottom, the first scale being used to indicate the position coordinates of the simulated screen in the X direction.

[0006] Furthermore, the calibration stand device also includes: a second guide rail, the two ends of which are slidably connected to the second support and the fourth support respectively, and a second scale is provided at the bottom of the second guide rail. The second scale is set along the extension direction of the second guide rail and is used to indicate the position coordinates of the simulation screen in the Y direction.

[0007] Furthermore, a sliding component is provided on the second guide rail, and the sliding component is slidably disposed along the extension direction of the second guide rail.

[0008] Furthermore, the sliding component includes: a third guide rail; a fourth guide rail, which is disposed opposite to the third guide rail, and the first ends of the fourth guide rail and the third guide rail are both connected to the second guide rail, and the second ends of the fourth guide rail and the third guide rail extend downward in the vertical direction; and a connector, the two ends of which are slidably connected to the fourth guide rail and the third guide rail respectively, and the connector is disposed parallel to the second guide rail.

[0009] Furthermore, at least one of the fourth and third guide rails is provided with a third scale on its outer side, which is used to indicate the position coordinates of the simulation screen in the Z direction.

[0010] Furthermore, the connector is provided with a first damping hinge and a second damping hinge, which are spaced apart along the length of the connecting plate.

[0011] Furthermore, the fixed end of the first damping hinge is bonded to the connector, the rotating end of the first damping hinge is connected to the simulation screen, and / or, the fixed end of the second damping hinge is bonded to the connector, and the rotating end of the second damping hinge is connected to the simulation screen.

[0012] Furthermore, the first damping hinge and the second damping hinge are arranged symmetrically on two axes, with their rotation axis parallel to the extension direction of the second guide rail. The first damping hinge and the second damping hinge are used to control the tilt angle adjustment of the simulation screen around the Y-axis within a preset range, which is 0° to 30°.

[0013] Furthermore, the back of the simulated screen is provided with multiple sets of symmetrically arranged snap-on adhesive slots for temporarily fixing simulated display films or flexible electronic ink screen prototypes of different thicknesses.

[0014] Furthermore, the first, second, and third scales are all self-adhesive metal scales with a scale accuracy of no less than 1mm, and their surfaces are covered with a wear-resistant transparent film.

[0015] By applying the technical solution of this invention, a non-destructive and reusable visual evaluation platform is constructed using a modular aluminum profile frame. The frame assembly consists of a bottom frame component, side frame components, and a top frame component, forming a stable rectangular space. The bottom frame component supports a seat to simulate the seating posture of a real occupant, providing a stable human-machine reference for evaluating the position of the ceiling-mounted screen. The top frame component comprises four mutually perpendicularly connected supports, two of which serve as X-axis guide rails, allowing the simulated screen to slide freely along the vehicle's longitudinal direction, enabling position adjustment in the X direction. At least one X-axis guide rail has a first scale on its bottom surface, directly indicating the screen's spatial coordinates in that direction, providing a visual positioning basis for the adjustment process. The entire structure is assembled entirely using standard profiles and mechanical connections, requiring no modification to the actual vehicle or reliance on motors or electrical control systems. Multi-dimensional verification of the ceiling-mounted screen's installation position can be completed solely through manual sliding and scale readings, achieving a low-cost, high-efficiency, and repeatable subjective review function. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0017] Figure 1 An isometric schematic diagram of an embodiment of the verification bench apparatus according to the present invention is shown;

[0018] Figure 2 A front view schematic diagram of an embodiment of the verification bench apparatus according to the present invention is shown;

[0019] Figure 3 A top view of an embodiment of the verification bench apparatus according to the present invention is shown;

[0020] Figure 4 It shows Figure 3 A cross-sectional schematic diagram of the CC section of the calibration test bench device;

[0021] Figure 5 It shows Figure 3 A schematic diagram of the cross-section of the AA-type calibration test stand;

[0022] Figure 6 It shows Figure 5 Enlarged diagram of point B in the middle.

[0023] The above figures include the following reference numerals:

[0024] 1. Eighth support; 2. Fifth support; 3. Sixth support; 4. Seventh support; 5. Ninth support; 6. Tenth support; 7. Eleventh support; 8. Twelfth support; 9. First support; 10. Second support; 11. Third support; 12. Fourth support;

[0025] 100. Frame assembly; 200. Bottom frame component; 300. Side frame component; 400. Top frame component;

[0026] 13. Second guide rail;

[0027] 14. Third guide rail;

[0028] 15. Connectors;

[0029] 16. Fourth guide rail;

[0030] 17. The third benchmark;

[0031] 18. Simulate screen;

[0032] 19. The second scale;

[0033] 20. The First Benchmark;

[0034] 21. Seats;

[0035] 22. First damping hinge;

[0036] 23. Second damping hinge. Detailed Implementation

[0037] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0038] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0039] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0040] Exemplary embodiments according to this application will now be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein. It should be understood that these embodiments are provided so that the disclosure of this application is thorough and complete, and that the concept of these exemplary embodiments is fully conveyed to those skilled in the art. In the drawings, for clarity, the thickness of layers and regions may be exaggerated, and the same reference numerals are used to denote the same devices, and therefore their description will be omitted.

[0041] In existing technologies, automated test benches include:

[0042] 1. High system complexity: Reliance on motor drive and electrical control system significantly increases equipment cost;

[0043] 2. Lengthy development cycle: The time required from design to debugging is too long, making it difficult to match the vehicle development schedule;

[0044] 3. High maintenance threshold: Fault diagnosis and maintenance require the intervention of professional personnel, which incurs additional costs;

[0045] 4. Upgrade lag: The speed of hardware iteration cannot keep up with the frequency of vehicle model updates;

[0046] Simplified model solution:

[0047] 1. Structural rigidity defects: Insufficient strength of the frame material, which easily causes deformation and affects the accuracy of the test;

[0048] 2. Low positioning accuracy: Manual adjustment leads to poor consistency in repeated positioning;

[0049] 3. Non-standardized components: poor compatibility of connectors and insufficient reusability across projects.

[0050] Existing technologies present a polarized dilemma: low-cost, simple solutions suffer from low reliability of test results due to insufficient structural rigidity and positioning accuracy; high-precision automated solutions are constrained by development costs and timeliness, making it difficult to adapt to the rapidly iterating R&D needs of the automotive industry.

[0051] Combination Figures 1 to 6 As shown in the specific embodiment of this application, a calibration stand device for in-vehicle ceiling-mounted screens is provided.

[0052] Furthermore, such as Figure 1 , Figure 3 , Figure 4 As shown, the calibration stand device for an in-vehicle ceiling-mounted screen includes: a frame assembly 100, which is formed by a bottom frame component 200, a side frame component 300, and a top frame component 400. The side frame component 300 is located between the bottom frame component 200 and the top frame component 400. The bottom frame component 200 and the top frame component 400 are arranged in parallel. A seat 21 is provided inside the bottom frame component 200. The top frame component 400 is formed by a first bracket 9, a second bracket 10, a third bracket 11, and a fourth bracket 12 connected end to end. The first bracket 9 and the third bracket 11 are arranged in parallel, and the second bracket 10 and the fourth bracket 12 are arranged in parallel. Guide rails are provided on both the second bracket 10 and the fourth bracket 12 to enable free sliding adjustment of the simulated screen 18 in the X direction. At least one of the second bracket 10 and the fourth bracket 12 has a first scale 20 at its bottom, which is used to indicate the position coordinates of the simulated screen 18 in the X direction.

[0053] Specifically, the bottom component 200 of the frame is formed by connecting the eighth bracket 1, the fifth bracket 2, the sixth bracket 3, and the seventh bracket 4 head to head, wherein the eighth bracket 1 and the sixth bracket 3 are arranged in parallel, and the fifth bracket 2 and the seventh bracket 4 are arranged in parallel.

[0054] Specifically, the frame side assembly 300 is formed by connecting the ninth bracket 5, the tenth bracket 6, the eleventh bracket 7, and the twelfth bracket 8 head to head, wherein the ninth bracket 5 and the twelfth bracket 8 are arranged in parallel, and the tenth bracket 6 and the eleventh bracket 7 are arranged in parallel.

[0055] Optionally, the side frame assembly 300 consists of four vertically arranged aluminum profiles located at the four corners of the bottom frame assembly 200. Their upper ends are connected to the corner profiles of the top frame assembly 400 via corner brackets and T-bolts, forming a vertical support structure to ensure the structural rigidity of the overall frame in the X, Y, and Z directions. The top frame assembly 400 consists of a first bracket 9, a second bracket 10, a third bracket 11, and a fourth bracket 12 connected end-to-end to form a closed rectangular ring structure. The first bracket 9 and the third bracket 11 are parallel profiles extending longitudinally along the vehicle, while the second bracket 10 and the fourth bracket 12 are parallel profiles extending transversely along the vehicle. Both are made of industrial-grade 6063-T5 aluminum alloy and have T-slots within their cavities for supporting and guiding the sliding mechanism of the simulation screen.

[0056] Both the second bracket 10 and the fourth bracket 12 have guide rail structures along their length on their sides. These guide rails are flat surfaces of the profile's sidewalls, used to support and restrict the sliding trajectory of the simulated screen in the X direction. This allows the simulated screen 18 to slide freely along the vehicle's front-to-back direction without the need for additional sliders or guide rails; position adjustment can be achieved simply by loosening the connectors to the adjacent column profiles. At least one of the second bracket 10 and the fourth bracket 12, preferably the fourth bracket 12, has a first scale 20 attached to its bottom surface using structural adhesive. This scale is a metal ruler with a graduation accuracy of not less than 1mm. The graduation lines are aligned with the edge of the profile, and its length covers 120% of the entire guide rail adjustment range, allowing the operator to directly read the spatial coordinates of the simulated screen 18 in the X direction for visual positioning.

[0057] By applying the technical solution of this invention, a non-destructive and reusable visual evaluation platform is constructed using a modular aluminum profile frame. The frame assembly consists of a bottom frame component 200, side frame components 300, and a top frame component 400, forming a stable rectangular space. The bottom frame component supports a seat to simulate the seating posture of a real occupant, providing a stable human-machine reference for evaluating the position of the ceiling-mounted screen. The top frame component comprises four mutually perpendicularly connected supports, two of which serve as X-axis guide rails, allowing the simulated screen to slide freely along the vehicle's longitudinal direction, enabling position adjustment in the X direction. At least one X-axis guide rail has a first scale on its bottom surface, directly indicating the screen's spatial coordinates in that direction, providing a visual positioning basis for the adjustment process. The entire structure is assembled entirely using standard profiles and mechanical connections, requiring no modification to the actual vehicle or reliance on motors or electrical control systems. Multi-dimensional verification of the ceiling-mounted screen's installation position can be completed solely through manual sliding and scale readings, achieving a low-cost, high-efficiency, and repeatable subjective review function.

[0058] Furthermore, the calibration stand device also includes: a second guide rail 13, the two ends of which are slidably connected to the second support 10 and the fourth support 12 respectively, and a second scale 19 is provided at the bottom of the second guide rail 13. The second scale 19 is set along the extension direction of the second guide rail 13 and is used to indicate the position coordinates of the simulation screen 18 in the Y direction.

[0059] Specifically, the second guide rail 13 is an independent aluminum profile, with its two ends slidably connected to the second bracket 10 and the fourth bracket 12 via detachable angle brackets and T-bolts. This allows the second guide rail 13 to move approximately 400° horizontally relative to the top component of the frame, thereby adjusting the position of the simulated screen 18 mounted on it in the X-axis. A second scale 19, the same length as the second guide rail 13 and with scale lines aligned with the guide rail edge, is affixed to the bottom surface of the second guide rail 13. This scale directly reads the installation height coordinates of the simulated screen 18 in the Y-axis, enabling precise and visual positioning of the screen's longitudinal position. This structure, without adding complex mechanisms, provides a measurable and reproducible physical reference for adjusting the simulated screen in the Y-axis through mechanical sliding and scale coordination, improving multi-dimensional spatial positioning.

[0060] Furthermore, a sliding component is provided on the second guide rail 13, and the sliding component is slidably disposed along the extension direction of the second guide rail 13.

[0061] The sliding component is adapted to the profile structure of the second guide rail 13 and can slide freely along its length, serving to support and connect the mounting mechanism of the simulation screen 18. The sliding component is locked to the second guide rail 13 by fasteners, thus fixing the simulation screen 18 in the Y-direction position. This structure allows the simulation screen 18 to be finely adjusted laterally on the second guide rail 13, thereby forming a segmented positioning capability in the Y-direction, enhancing the flexibility and accuracy of screen spatial position adjustment. At the same time, the second scale 19 enables visual reading of the sliding position, allowing for coordinate recording required for ergonomic evaluation without additional measuring tools.

[0062] Furthermore, such as Figure 2 As shown, the sliding assembly includes: a third guide rail 14; a fourth guide rail 16, which is disposed opposite to the third guide rail 14, and the first ends of both the fourth guide rail 16 and the third guide rail 14 are connected to the second guide rail 13, and the second ends of the fourth guide rail 16 and the third guide rail 14 extend downward in the vertical direction; and a connector 15, whose two ends are slidably connected to the fourth guide rail 16 and the third guide rail 14 respectively, and the connector 15 is disposed parallel to the second guide rail 13.

[0063] The sliding assembly includes a third guide rail 14 and a fourth guide rail 16, which are two parallel aluminum profiles located below the second guide rail 13. Their first ends are fixed to the bottom surface of the second guide rail 13 via angle brackets and T-bolts. The third guide rail 14 and the fourth guide rail 16 are symmetrically distributed laterally along the second guide rail 13. The second ends of the third guide rail 14 and the fourth guide rail 16 extend downwards vertically, forming two vertical cantilever structures. Their extension length matches the installation height of the simulation screen 18 and is used to support the connector 15. The connector 15 is a horizontally arranged aluminum profile, with both ends slidingly engaged with the third guide rail 14 and the fourth guide rail 16 respectively. It slides up and down along the vertical direction of the third guide rail 14 and the fourth guide rail 16 via a slider or cavity nesting structure, and can be locked in place at any position by fasteners. The connector 15 is parallel to the second guide rail 13 and is used to install the simulation screen 18 so that after the screen is positioned in the X and Y directions, it can still be finely adjusted in height along the Z guide rail system formed by the third guide rail 14 and the fourth guide rail 16.

[0064] Furthermore, such as Figure 5 As shown, at least one of the fourth guide rail 16 and the third guide rail 14 has a third scale 17 on its outer side, which is used to indicate the position coordinates of the simulation screen 18 in the Z direction.

[0065] In one specific embodiment, a third ruler 17 is attached to the side of the fourth guide rail 16 facing the evaluator. This ruler is a vertical scale with millimeter graduations, aligned with the sliding reference of the connector 15, allowing the operator to directly read the installation height coordinates of the simulated screen 18 in the Z direction, achieving full-chain visualization of three-dimensional spatial positioning. This structure, through three sets of mutually orthogonal guide rails and ruler systems, constructs a purely mechanical, non-electrically driven six-degree-of-freedom adjustment capability. The independent positioning of the screen in the X, Y, and Z directions can be completed simply by manually tightening and loosening the bolts. Moreover, each ruler is directly attached to the surface of the structural component, eliminating the need for external instruments, significantly improving verification efficiency and repeatability.

[0066] Furthermore, the connector 15 is provided with a first damping hinge 22 and a second damping hinge 23, which are spaced apart along the length of the connector 15.

[0067] The first damping hinge 22 and the second damping hinge 23 are arranged at intervals along the length of the connector 15, located at both ends of the connector 15. They are fixed to the upper surface of the connector 15 using structural adhesive, without welding or bolt penetration, ensuring structural integrity and ease of disassembly. Both the first damping hinge 22 and the second damping hinge 23 are commercially available self-damping hinges. Their axes extend along the vehicle's transverse (Y-direction) and are perpendicular to the length of the connector 15. The fixed end of the hinge is fixed to the connector 15, while the rotating end is used to mount the simulation screen 18, allowing the simulation screen 18 to be infinitely adjusted in pitch around this axis. The hinges have a built-in damping mechanism, enabling stable suspension of the screen at any angle without the need for additional locking devices; angle adjustment and positioning can be completed simply by applying light force manually.

[0068] Furthermore, the fixed end of the first damping hinge 22 is bonded to the connector 15, the rotating end of the first damping hinge 22 is connected to the simulation screen 18, and / or, the fixed end of the second damping hinge 23 is bonded to the connector 15, and the rotating end of the second damping hinge 23 is connected to the simulation screen 18.

[0069] In a specific embodiment, the simulated screen 18 is a wooden flat panel, the back of which is fixed to the rotating arm of the first damping hinge 22 and the second damping hinge 23 by adhesive, ensuring uniform force distribution on the screen. When the evaluator needs to assess the visual comfort of the screen at different tilt angles, the screen tilt angle can be manually adjusted up and down to observe the interaction between the driver's line of sight and the screen content at different tilt angles. The damping characteristics ensure that the screen does not bounce or wobble after adjustment, improving the stability and repeatability of the evaluation. This structure, through two symmetrically arranged damping hinges, allows the simulated screen 18 to independently complete the tilt angle adjustment around the Y axis even when the Z-axis height and Y-axis position are locked. This achieves accurate simulation of the five degrees of freedom (X, Y, Z displacement + rotation around the Y axis) of the ceiling-mounted screen installation posture. Moreover, all adjustment actions are completed by a purely mechanical structure, without the need for electricity, pneumatics, or complex mechanisms, meeting the design requirements of low cost, high reusability, and ease of operation.

[0070] In a specific embodiment, the simulated screen 18 is mounted on the connector 15 via damping hinges. Both ends of the connector 15 are fixed to the sliding connectors of the second bracket 10 and the fourth bracket 12, respectively, allowing the screen to slide along the guide rail. After sliding to the target position, the connector 15 is fixed to the column profile by tightening the T-bolts, completing the X-axis positioning. If the screen height or front-to-back position needs adjustment, the connector between the second bracket 10 or the fourth bracket 12 and the column profile can be loosened, moved along the Z or Y direction, and then tightened again, achieving stepless adjustment in three-dimensional space. The simulated screen 18 is a wooden flat panel, its size completely consistent with the ceiling-mounted display area of ​​the target mass-produced vehicle model. A custom-printed visual simulation film can be pasted on its surface to simulate the brightness, color, and interface layout of a real screen, allowing testers to evaluate visual comfort in a realistic sitting posture. The entire device is assembled using commercially available standard aluminum profiles and mechanical fasteners, without welding or electrical components. It can be quickly disassembled and reassembled between different vehicle models, with a main structure reuse rate exceeding 80%.

[0071] Furthermore, the first damping hinge 22 and the second damping hinge 23 are arranged symmetrically on two axes, and their rotation axis is parallel to the extension direction of the second guide rail 13. The first damping hinge 22 and the second damping hinge 23 are used to control the tilt angle adjustment of the simulation screen 18 around the Y-axis within a preset range, the preset range being 0°~30°.

[0072] The first damping hinge 22 and the second damping hinge 23 are a dual-axis symmetrical structure. They are arranged symmetrically along the length of the connector 15. Their rotation axis is parallel to the extension direction of the second guide rail 13, that is, set along the vehicle's transverse direction (Y-axis). This allows the simulation screen 18 to pitch and rotate around the horizontal axis that coincides with the Y-axis during the adjustment process, thereby achieving tilt adjustment around the Y-axis.

[0073] This dual-axis symmetrical design ensures that the screen is subjected to uniform force during rotation, without eccentric torque, avoiding tilting or wobbling caused by single-point connection. The hinge's rotation range is constrained by its internal mechanical limiting structure, with a preset adjustment angle of 0° to 30°. 0° is when the screen plane is parallel to the vertical plane (i.e., vertically downward), and 30° is the maximum angle at which the upper edge of the screen tilts backward and the lower edge tilts forward. This range covers the typical ergonomic installation tilt angle range of ceiling-mounted screens in passenger vehicles, meeting the driver's needs for assessing screen visibility in a normal sitting posture.

[0074] In a specific embodiment, both the first damping hinge 22 and the second damping hinge 23 are commercially available industrial-grade self-damping hinges. Their internal structure employs viscous damping oil or friction pads, requiring no external power; stable screen suspension at any angle can be achieved simply by manual adjustment. The simulated screen 18 is bonded to the rotating arms of the two hinges with structural adhesive. Its back surface, which is mating to the hinges, is polished to enhance adhesion strength, ensuring overall rigidity at a 30° tilt angle without loosening or deformation. When reviewers conduct subjective evaluations on the seat 21, they can manually push the top edge of the screen to slowly raise it from a horizontal position to 20° or 30°. The damping characteristics ensure the screen maintains its current angle after release, facilitating comparative observation of screen reflection, reading distance, and changes in the line-of-sight point by multiple users. The tilt adjustment function is independent of the X, Y, and Z displacement adjustment, forming a complete spatial positioning capability with five degrees of freedom (X, Y, and Z displacement + rotation around the Y axis). All adjustment actions are purely mechanical and non-destructive operations, requiring no tools. Precise reset can be completed simply by visually inspecting the ruler and by feel, significantly improving design verification efficiency and data traceability.

[0075] In a specific embodiment, the simulated screen 18 is a 5mm thick lightweight plywood board, whose dimensions are completely consistent with the display area of ​​the mass-produced ceiling-mounted screen of the target vehicle model. After being coated with bubble-free structural adhesive on the back, it is bonded to the rotating arms of the two damping hinges and forms a stable connection after being left to cure. When the evaluator adjusts the screen tilt angle, the damping mechanism built into the hinges provides uniform resistance, allowing the screen to hover arbitrarily within the range of 0° to 30° without self-slipping or trembling, ensuring consistent posture during multiple evaluations. This symmetrical arrangement of the double-damping hinges not only improves the balance and stability of the simulated screen 18 during adjustment but also effectively disperses the bending moment load of the screen's own weight on the connecting parts 15, preventing local deformation and thus ensuring the accuracy of the visual evaluation. All connections are non-destructive adhesives, without welding or drilling, relying entirely on standardized components and simple processes, which aligns with the design goals of this device: low cost, detachable, and easy maintenance.

[0076] Furthermore, the back of the analog screen 18 is provided with multiple sets of symmetrically arranged snap-on adhesive slots for temporarily fixing analog display films or flexible electronic ink screen prototypes of different thicknesses.

[0077] The back of the simulated screen 18 features multiple symmetrically arranged snap-fit ​​adhesive grooves. These grooves are recessed structures spaced along the length of the back of the wooden board. The groove width matches the edge thickness of a conventional display film or flexible prototype, and the groove depth does not penetrate the board. The side walls of the grooves form a snap-fit ​​structure, allowing the edge of the film or prototype to be inserted and positioned, achieving temporary fixation without adhesive. This design does not rely on glue or screws, avoiding permanent damage to the simulated screen 18 itself.

[0078] Furthermore, such as Figure 6 As shown, the first scale 20, the second scale 19 and the third scale 17 are all self-adhesive metal scales with a scale accuracy of not less than 1mm, and their surfaces are covered with a wear-resistant transparent film.

[0079] The first scale 20, the second scale 19, and the third scale 17 are all self-adhesive metal scales. Their base material is a 0.3mm thick aluminum alloy strip with an anodized surface to form a frosted texture, which enhances the adhesion to the aluminum profile surface. The scale lines are formed by laser etching, with a line width ≤0.2mm, a graduation value of 1mm, an accuracy of not less than ±0.5mm, and a minimum reading unit of 1mm, which meets the accuracy requirements for spatial position in ergonomics review.

[0080] The scale surface is covered with a transparent, wear-resistant polyurethane film, approximately 0.05mm thick, which is scratch-resistant, oil-resistant, and solvent-resistant. It can withstand long-term wear from operator hand contact, tool contact, and environmental dust, ensuring clear and readable scale and preventing the markings from becoming blurred due to daily use.

[0081] The first ruler 20 is pasted along the entire length of the bottom surface of the X-guide rail, with its zero point aligned with the reference end face of the frame. It is used to read the installation position of the simulated screen 18 in the longitudinal (X-direction) of the vehicle. The second ruler 19 is pasted along the entire length of the bottom surface of the Y-guide rail (second guide rail 13), with its zero point aligned with the side edge of the frame. It is used to indicate the front and rear position of the screen in the transverse (Y-direction) of the vehicle. The third ruler 17 is pasted vertically along the Z-guide rail on the side facing the evaluator, with its zero point located at the bottom end of the guide rail. It is used to directly observe the height coordinates of the simulated screen in the Z-direction. In a specific embodiment, after the operator completes the X, Y, and Z-direction adjustments, they can directly visually observe the scale value on the corresponding ruler that is aligned with the fixed point of the simulated screen 18 (such as the front edge of the connector 15 or the installation positioning point of the damping hinge) to record the precise coordinates of the screen in three-dimensional space, without the need for external tools such as tape measures or laser rangefinders. The ruler is pre-attached with industrial-grade double-sided tape. During installation, simply clean the surface of the profile, peel off the film, stick it tightly, and apply pressure for 30 seconds to complete the fixation. When disassembling, the entire strip can be peeled off without leaving any residue, which does not affect the reuse of the profile.

[0082] The calibration bench device for in-vehicle ceiling screens according to this application involves the following steps for calibrating the ceiling screen:

[0083] 1. Assemble and build the frame assembly;

[0084] 2. Adjust the screen position by adjusting the system to ensure that the relative position of the screen and the seat matches the design position;

[0085] 3. Evaluators assess the screen performance, and the evaluators should be selected to cover as much of the height range as possible for Chinese people;

[0086] 4. Adjust the screen position according to the evaluation feedback to meet the comfort needs of users;

[0087] 5. Read the current screen position (X / Y / Z directions) and optimize the design scheme.

[0088] In one embodiment, the calibration stand device for the ceiling-mounted screen has a usage process:

[0089] The process of scaffold assembly and construction:

[0090] First, arrange 12 standard aluminum profiles (numbered 1–12) according to... Figure 1 The structural relationships shown are secured using angle brackets, T-bolts, and nuts to construct a stable frame assembly. The second bracket 10 and the fourth bracket 12 serve as X-axis guide rails, arranged parallel to each other on the top sides of the frame; the second guide rail 13 serves as a Y-axis guide rail, horizontally positioned between the X-axis guide rails; the third and fourth guide rails serve as Z-axis guide rails, vertically connected to both ends of the Y-axis guide rails, forming a three-dimensional spatial positioning skeleton. Connector 15 serves as the screen mounting base, fixedly connected to the Z-axis guide rail via damping hinges. The seat 21 is placed directly below the frame on the ground, opposite to the intended installation position of the simulated screen. All connection nodes are secured using standard parts, without welding or permanent modifications, ensuring the structure is detachable and reconfigurable.

[0091] Simulate the screen installation and positioning adjustment process:

[0092] The simulated screen 18, made of wooden board, is glued to the movable end of the damping hinge, ensuring that the screen's center of gravity is aligned with the hinge's pivot point to prevent eccentric wobbling. Then, three-dimensional spatial positioning is achieved through manual operation.

[0093] X-axis adjustment: Loosen the connector between the Y-axis guide rail and the X-axis guide rail, slide the entire actuator along the X-axis, read the lateral coordinate according to the scale attached to the bottom of the X-axis guide rail, move to the design preset position, and then re-tighten the connector.

[0094] Y-axis adjustment: Loosen the connector between the Y-axis guide rail and the Z-axis guide rail, move the actuator along the Y-axis, read the longitudinal coordinate according to the scale attached to the bottom surface of the Y-axis guide rail, and re-lock after positioning;

[0095] Z-axis adjustment: Loosen the connector between the Z-axis guide rail and the Y-axis guide rail, move the connector up and down, read the height coordinate according to the scale on the side of the Z-axis guide rail facing the evaluator, adjust to the designed eye level height and then lock it.

[0096] Tilt angle adjustment: By manually applying force to the back of the simulated screen, it rotates around the pivot of the damping hinge. The damping characteristics of the hinge itself are used to stably suspend the screen at any tilt angle without the need for an additional locking device.

[0097] Human factors engineering review and data collection process:

[0098] Based on the height distribution range of Chinese people (e.g., 155cm–185cm), the evaluators selected representative individuals of different heights to sit in chair 21. Through visual observation and subjective experience, they evaluated the visibility, glare, reading comfort, and operational accessibility of the simulated screen. The screen's scale readings on the X, Y, and Z axes, as well as the pitch angle, were recorded to form quantitative design parameters. If the evaluation results did not meet the ergonomic requirements, the above adjustment process was repeated until the screen's spatial position and posture reached the optimal design goal.

[0099] Solution optimization and data archiving process:

[0100] After determining the optimal screen position, record the precise readings of the scales in each direction (e.g., X=620mm, Y=480mm, Z=1350mm, pitch angle=12°), and input this data into the vehicle design system as the engineering basis for the ceiling-mounted screen installation positioning. Subsequently, loosen all connectors, modularly disassemble the actuator and frame, retain the main aluminum profile structure, and adapt to the next vehicle model verification by simply replacing the simulation screen (e.g., replacing it with a different size or surface texture), achieving cross-project reuse.

[0101] The technical solution of this embodiment has the following technical effects:

[0102] (1) Construct a non-destructive verification platform, using a standard aluminum profile frame and a fake screen to simulate the real vehicle installation effect, thus avoiding the risk of modifying the actual vehicle;

[0103] (2) A purely mechanical slide rail ruler positioning system is adopted to achieve positioning accuracy that meets the requirements of human-machine engineering review under manual operation conditions;

[0104] (3) The modular architecture supports rapid disassembly and reassembly, requiring only partial adjustments when adapting to different vehicle models, and the main structure can be reused across projects;

[0105] (4) The entire system is built based on commercially available standard materials and reserves standardized expansion interfaces to support subsequent function upgrades without reconstructing the basic framework.

[0106] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0107] In addition to the above, it should be noted that the terms "one embodiment," "another embodiment," and "embodiment" used in this specification refer to specific features, structures, or characteristics described in connection with that embodiment, which are included in at least one embodiment described in the general description of this application. The appearance of the same expression in multiple places in the specification does not necessarily refer to the same embodiment. Furthermore, when a specific feature, structure, or characteristic is described in connection with any embodiment, the intention is to suggest that implementing such a feature, structure, or characteristic in conjunction with other embodiments also falls within the scope of this invention.

[0108] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0109] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A calibration stand device for in-vehicle ceiling-mounted screens, characterized in that, include: A frame assembly (100) is formed by a bottom frame assembly (200), a side frame assembly (300), and a top frame assembly (400). The side frame assembly (300) is located between the bottom frame assembly (200) and the top frame assembly (400). The bottom frame assembly (200) and the top frame assembly (400) are arranged in parallel. A seat (21) is provided inside the bottom frame assembly (200). The top component (400) of the frame is composed of a first bracket (9), a second bracket (10), a third bracket (11) and a fourth bracket (12) connected end to end. The first bracket (9) and the third bracket (11) are arranged in parallel, and the second bracket (10) and the fourth bracket (12) are arranged in parallel. The second bracket (10) and the fourth bracket (12) are both provided with guide rails to enable the simulation screen (18) to slide freely in the X direction. The bottom of at least one of the second bracket (10) and the fourth bracket (12) is provided with a first scale (20), which is used to indicate the position coordinates of the simulation screen (18) in the X direction.

2. The calibration stand device for in-vehicle ceiling-mounted screens according to claim 1, characterized in that, The verification bench device also includes: The second guide rail (13) has two ends that are slidably connected to the second bracket (10) and the fourth bracket (12) respectively. The bottom of the second guide rail (13) is provided with a second scale (19). The second scale (19) is set along the extension direction of the second guide rail (13). The second scale (19) is used to indicate the position coordinates of the simulation screen (18) in the Y direction.

3. The calibration stand device for in-vehicle ceiling-mounted screens according to claim 2, characterized in that, The second guide rail (13) is provided with a sliding component, which is slidably disposed along the extension direction of the second guide rail (13).

4. The calibration stand device for in-vehicle ceiling-mounted screens according to claim 3, characterized in that, The sliding component includes: Third guide rail (14); The fourth guide rail (16) is arranged opposite to the third guide rail (14), and the first ends of the fourth guide rail (16) and the third guide rail (14) are connected to the second guide rail (13). The second ends of the fourth guide rail (16) and the third guide rail (14) extend downward in the vertical direction. The connector (15) has two ends that are slidably connected to the fourth guide rail (16) and the third guide rail (14) respectively, and the connector (15) is arranged parallel to the second guide rail (13).

5. The calibration stand device for in-vehicle ceiling-mounted screens according to claim 4, characterized in that, A third scale (17) is provided on the outer side of at least one of the fourth guide rail (16) and the third guide rail (14), the third scale (17) being used to indicate the position coordinates of the simulation screen (18) in the Z direction.

6. The calibration stand device for in-vehicle ceiling-mounted screens according to claim 4, characterized in that, The connector (15) is provided with a first damping hinge (22) and a second damping hinge (23), and the first damping hinge (22) and the second damping hinge (23) are spaced apart along the length direction of the connector (15).

7. The calibration stand device for in-vehicle ceiling-mounted screens according to claim 6, characterized in that, The fixed end of the first damping hinge (22) is bonded to the connector (15), the rotating end of the first damping hinge (22) is connected to the simulation screen (18), and / or, the fixed end of the second damping hinge (23) is bonded to the connector (15), and the rotating end of the second damping hinge (23) is connected to the simulation screen (18).

8. The calibration stand device for in-vehicle ceiling-mounted screens according to claim 6, characterized in that, The first damping hinge (22) and the second damping hinge (23) are arranged in a biaxial symmetrical manner, and their rotation axis is parallel to the extension direction of the second guide rail (13). The first damping hinge (22) and the second damping hinge (23) are used to control the tilt angle of the simulation screen (18) to be adjusted around the Y-axis within a preset range, the preset range being 0°~30°.

9. The calibration stand device for in-vehicle ceiling-mounted screens according to claim 8, characterized in that, The back of the simulated screen (18) is provided with multiple sets of symmetrically arranged snap-on adhesive slots for temporarily fixing simulated display films or flexible electronic ink screen prototypes of different thicknesses.

10. The calibration stand device for in-vehicle ceiling-mounted screens according to claim 5, characterized in that, The first scale (20), the second scale (19) and the third scale (17) are all self-adhesive metal scales with a scale accuracy of not less than 1 mm and their surfaces are covered with a wear-resistant transparent film.

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